stash

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "frontend/extras"]
+	path = frontend/extras
+	url = https://git.neulandlabor.de/j3d1/vue-extras.git

README.md

@@ -1,5 +1,8 @@
 # toolshed
 
+
+## foo
+
 ## Development
 
 ``` bash
@@ -87,4 +90,4 @@ for detailed instructions see [docs](/docs/deployment.md).
 
 ``` bash
 cli-client/toolshed-client.py --key <hex private key> --user name@example.com --host 1.2.3.4:8000 getinventory
-```
+```

backend/.env.dist

@@ -1,2 +1,4 @@
 
-ALLOWED_HOSTS="localhost,127.0.0.1"
+ALLOWED_HOSTS="localhost,127.0.0.1"
+
+SERVE_X_ACCEL_REDIRECT=True

backend/Dockerfile

@@ -6,7 +6,7 @@ RUN pip install --upgrade pip && pip install -r requirements.txt
 COPY . /app
 RUN python configure.py
 RUN python manage.py collectstatic --noinput
-CMD python manage.py runserver 0.0.0.0:8000 --insecure
+CMD python manage.py migrate && python manage.py runserver 0.0.0.0:8000 --insecure
 # TODO serve static files with nginx and remove --insecure
 EXPOSE 8000
 

backend/authentication/admin.py

@@ -1,6 +1,7 @@
 from django.contrib import admin
 
-from authentication.models import ToolshedUser, KnownIdentity, FriendRequestOutgoing, FriendRequestIncoming
+from authentication.models import ToolshedUser, KnownIdentity, FriendRequestOutgoing, FriendRequestIncoming, \
+    AccountPreference
 
 
 class ToolshedUserAdmin(admin.ModelAdmin):
@@ -8,6 +9,11 @@ class ToolshedUserAdmin(admin.ModelAdmin):
     search_fields = ('username', 'email', 'first_name', 'last_name', 'is_staff', 'is_active', 'date_joined', 'domain')
 
 
+class AccountPreferenceAdmin(admin.ModelAdmin):
+    list_display = ('user', 'key', 'value')
+    search_fields = ('user__username', 'key')
+
+
 class KnownIdentityAdmin(admin.ModelAdmin):
     list_display = ('username', 'domain', 'public_key')
     search_fields = ('username', 'domain', 'public_key')
@@ -27,3 +33,4 @@ admin.site.register(ToolshedUser, ToolshedUserAdmin)
 admin.site.register(KnownIdentity, KnownIdentityAdmin)
 admin.site.register(FriendRequestOutgoing, FriendRequestOutgoingAdmin)
 admin.site.register(FriendRequestIncoming, FriendRequestIncomingAdmin)
+admin.site.register(AccountPreference, AccountPreferenceAdmin)

backend/authentication/api.py

@@ -9,12 +9,57 @@ from rest_framework.authtoken.models import Token
 from rest_framework.authtoken.views import ObtainAuthToken
 from rest_framework.response import Response
 
-from authentication.models import ToolshedUser
-from authentication.signature_auth import SignatureAuthenticationLocal
+from authentication.models import ToolshedUser, AccountPreference
+from authentication.signature_auth import SignatureAuthenticationLocal, SignatureAuthentication, \
+    split_userhandle_or_throw
+from files.models import File
+from files.serializers import FileSerializer
 from hostadmin.models import Domain
 
 router = routers.SimpleRouter()
 
+# Schema for the account-level preferences a client may store on the server (see
+# AccountPreference). Device-level preferences are never sent here - they stay in the
+# browser's local storage since they describe the device, not the account.
+PREFERENCE_DEFINITIONS = [
+    {
+        'key': 'ui.compact_mode',
+        'type': 'boolean',
+        'default': False,
+        'label': 'Compact mode',
+        'description': 'Show denser item rows and reduce spacing in lists.',
+    },
+    {
+        'key': 'ui.default_search_scope',
+        'type': 'enum',
+        'options': ['inventory', 'friends', 'all'],
+        'default': 'inventory',
+        'label': 'Default search scope',
+        'description': 'Choose where the global search starts.',
+    },
+    {
+        'key': 'notifications.desktop_enabled',
+        'type': 'boolean',
+        'default': True,
+        'label': 'Desktop notifications',
+        'description': 'Enable in-browser notifications for important updates.',
+    },
+    {
+        'key': 'files.max_upload_mb',
+        'type': 'integer',
+        'default': 25,
+        'label': 'Default upload size limit (MB)',
+        'description': 'Used as a prefill hint in upload dialogs.',
+    },
+    {
+        'key': 'ui.experimental_flags',
+        'type': 'json',
+        'default': {},
+        'label': 'Experimental flags',
+        'description': 'Optional JSON toggles for feature previews.',
+    },
+]
+
 
 class UserAuthToken(ObtainAuthToken):
 
@@ -53,15 +98,70 @@ class UserViewSet(viewsets.ModelViewSet):
     permission_classes = [IsAuthenticated, IsAdminUser]
 
 
-@api_view(['GET'])
+@api_view(['GET', 'PATCH'])
 @permission_classes([IsAuthenticated])
 @authentication_classes([SignatureAuthenticationLocal])
 def getUserInfo(request):
+    """Get or update the authenticated local user's own account info. Only usable by the
+    account owner on their own home server - see getUserProfile for viewing another (friend)
+    user's public profile."""
     user = request.user
+    if request.method == 'PATCH':
+        old_file = user.profile_picture
+        if 'profile_picture' in request.data:
+            profile_picture = request.data.get('profile_picture')
+            if profile_picture is None:
+                user.profile_picture = None
+            elif type(profile_picture) == dict:
+                serializer = FileSerializer(data=profile_picture)
+                if not serializer.is_valid():
+                    return Response(serializer.errors, status=400)
+                user.profile_picture = serializer.save()
+            else:
+                return Response({'profile_picture': 'Must be null or an object with data and mime_type.'}, status=400)
+        elif 'profile_picture_id' in request.data:
+            profile_picture_id = request.data.get('profile_picture_id')
+            if profile_picture_id is None:
+                user.profile_picture = None
+            else:
+                try:
+                    user.profile_picture = File.objects.get(id=profile_picture_id)
+                except File.DoesNotExist:
+                    return Response({'profile_picture_id': 'File does not exist.'}, status=400)
+        user.save()
+
+        if old_file and old_file != user.profile_picture and old_file.connected_items.count() == 0 and old_file.profile_picture_users.count() == 0:
+            old_file.delete()
+
     return Response({
         'username': user.username,
         'domain': user.domain,
-        'email': user.email
+        'email': user.email,
+        'profile_picture': FileSerializer(user.profile_picture).data if user.profile_picture else None,
+    })
+
+
+@api_view(['GET'])
+@permission_classes([IsAuthenticated])
+@authentication_classes([SignatureAuthentication])
+def getUserProfile(request, handle):
+    """Get another local user's public profile by handle (username@domain), e.g. so a friend
+    can look up someone's avatar. The caller must be a friend of that user (or the user
+    itself, signing with their own known identity rather than their local credentials)."""
+    try:
+        username, domain = split_userhandle_or_throw(handle)
+    except ValueError:
+        return Response(status=400)
+    try:
+        target = ToolshedUser.objects.get(username=username, domain=domain)
+    except ToolshedUser.DoesNotExist:
+        return Response(status=404)
+    if target not in request.user.friends_or_self():
+        return Response(status=403)
+    return Response({
+        'username': target.username,
+        'domain': target.domain,
+        'profile_picture': FileSerializer(target.profile_picture).data if target.profile_picture else None,
     })
 
 
@@ -99,11 +199,51 @@ def registerUser(request):
         return Response({'errors': {'domain': 'Domain does not exist or is not open for registration'}}, status=400)
 
 
+@api_view(['GET'])
+@permission_classes([])
+@authentication_classes([])
+def preference_definitions(request):
+    """Return the schema (types, defaults, labels) for the account preferences clients may set."""
+    return Response(PREFERENCE_DEFINITIONS)
+
+
+@api_view(['GET', 'PUT'])
+@permission_classes([IsAuthenticated])
+@authentication_classes([SignatureAuthenticationLocal])
+def account_preferences(request):
+    """Get or bulk-upsert the authenticated user's account-level preferences.
+
+    GET returns the current preferences as a {key: value} dict. PUT accepts a {key: value}
+    dict of one or more preferences to set/overwrite; unspecified keys are left untouched.
+    """
+    if request.method == 'PUT':
+        if not isinstance(request.data, dict):
+            return Response({'detail': 'Expected an object of key/value pairs.'}, status=400)
+        for key, value in request.data.items():
+            AccountPreference.objects.update_or_create(user=request.user, key=key, defaults={'value': value})
+
+    preferences = {pref.key: pref.value for pref in request.user.preferences.all()}
+    return Response(preferences)
+
+
+@api_view(['DELETE'])
+@permission_classes([IsAuthenticated])
+@authentication_classes([SignatureAuthenticationLocal])
+def account_preference_detail(request, key):
+    """Reset a single account-level preference back to its default by deleting it."""
+    AccountPreference.objects.filter(user=request.user, key=key).delete()
+    return Response(status=204)
+
+
 router.register(r'users', UserViewSet)
 
 urlpatterns = [
     path('', include(router.urls)),
     path('user/', getUserInfo),
+    path('user/<str:handle>/', getUserProfile),
     path('register/', registerUser),
     path('token/', UserAuthToken.as_view()),
+    path('preferences/', preference_definitions),
+    path('self/preferences/', account_preferences),
+    path('self/preferences/<str:key>/', account_preference_detail),
 ]

backend/authentication/migrations/0002_toolsheduser_profile_picture.py

@@ -0,0 +1,20 @@
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('files', '0001_initial'),
+        ('authentication', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='toolsheduser',
+            name='profile_picture',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL,
+                                    related_name='profile_picture_users', to='files.file'),
+        ),
+    ]
+

backend/authentication/migrations/0003_accountpreference.py

@@ -0,0 +1,26 @@
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0002_toolsheduser_profile_picture'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='AccountPreference',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('key', models.CharField(max_length=255)),
+                ('value', models.JSONField()),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='preferences',
+                                           to='authentication.toolsheduser')),
+            ],
+            options={
+                'unique_together': {('user', 'key')},
+            },
+        ),
+    ]
+

backend/authentication/models.py

@@ -86,6 +86,8 @@ class ToolshedUser(AbstractUser):
     domain = models.CharField(max_length=255, default='localhost')
     private_key = models.CharField(max_length=255)
     public_identity = models.ForeignKey(KnownIdentity, on_delete=models.CASCADE, related_name='user')
+    profile_picture = models.ForeignKey('files.File', on_delete=models.SET_NULL, null=True, blank=True,
+                                        related_name='profile_picture_users')
     objects = ToolshedUserManager()
 
     class Meta:
@@ -111,6 +113,23 @@ class ToolshedUser(AbstractUser):
         return self.public_identity.public_key
 
 
+class AccountPreference(models.Model):
+    """A single account-level (server-synced, cross-device) user preference, stored as a key/value pair.
+
+    Device-level preferences are intentionally *not* stored here - they stay in the browser's
+    local storage since they describe the device, not the account.
+    """
+    user = models.ForeignKey(ToolshedUser, on_delete=models.CASCADE, related_name='preferences')
+    key = models.CharField(max_length=255)
+    value = models.JSONField()
+
+    class Meta:
+        unique_together = ('user', 'key')
+
+    def __str__(self):
+        return f"{self.user}: {self.key}"
+
+
 class FriendRequestOutgoing(models.Model):
     secret = models.CharField(max_length=255)
     befriender_user = models.ForeignKey(ToolshedUser, on_delete=models.CASCADE, related_name='friend_requests_outgoing')

backend/authentication/signature_auth.py

@@ -106,11 +106,19 @@ def authenticate_request_against_local_users(request, raw_request_body):
 
 class SignatureAuthentication(authentication.BaseAuthentication):
     def authenticate(self, request):
-        return authenticate_request_against_known_identities(
-            request, request.body.decode('utf-8')), None
+        identity = authenticate_request_against_known_identities(request, request.body.decode('utf-8'))
+        # Returning a bare None (rather than a (None, None) tuple) tells DRF this
+        # authenticator doesn't apply, so it moves on to the next authenticator in the
+        # authentication_classes list instead of treating the request as authenticated
+        # with an empty user.
+        if identity is None:
+            return None
+        return identity, None
 
 
 class SignatureAuthenticationLocal(authentication.BaseAuthentication):
     def authenticate(self, request):
-        return authenticate_request_against_local_users(
-            request, request.body.decode('utf-8')), None
+        user = authenticate_request_against_local_users(request, request.body.decode('utf-8'))
+        if user is None:
+            return None
+        return user, None

backend/authentication/tests/test_auth.py

@@ -1,4 +1,5 @@
 import json
+import base64
 
 from django.test import Client, RequestFactory
 from nacl.encoding import HexEncoder
@@ -6,6 +7,7 @@ from nacl.signing import SigningKey
 
 from authentication.models import ToolshedUser, KnownIdentity
 from authentication.tests import UserTestMixin, SignatureAuthClient, DummyExternalUser, ToolshedTestCase
+from files.models import File
 
 
 class AuthorizationTestCase(ToolshedTestCase):
@@ -240,6 +242,7 @@ class UserApiTestCase(UserTestMixin, ToolshedTestCase):
         self.assertEqual(reply.json()['username'], 'testuser1')
         self.assertEqual(reply.json()['domain'], 'example.com')
         self.assertEqual(reply.json()['email'], 'test1@abc.de')
+        self.assertIsNone(reply.json()['profile_picture'])
 
     def test_user_info2(self):
         target = "/auth/user/"
@@ -249,6 +252,50 @@ class UserApiTestCase(UserTestMixin, ToolshedTestCase):
         self.assertEqual(reply.status_code, 200)
         self.assertEqual(reply.json()['username'], 'testuser1')
         self.assertEqual(reply.json()['domain'], 'example.com')
+        self.assertIsNone(reply.json()['profile_picture'])
+
+    def test_user_info_patch_profile_picture(self):
+        content = base64.b64encode(b'user-profile-image').decode('utf-8')
+        reply = self.client.patch('/auth/user/', self.f['local_user1'], {
+            'profile_picture': {
+                'data': content,
+                'mime_type': 'image/png'
+            }
+        })
+        self.assertEqual(reply.status_code, 200)
+        self.assertTrue(reply.json()['profile_picture'])
+        self.assertEqual(reply.json()['profile_picture']['mime_type'], 'image/png')
+        self.assertEqual(File.objects.count(), 1)
+        self.f['local_user1'].refresh_from_db()
+        self.assertIsNotNone(self.f['local_user1'].profile_picture)
+
+    def test_user_info_patch_profile_picture_clear(self):
+        encoded_content = base64.b64encode(b'user-profile-image').decode('utf-8')
+        test_file = File.objects.create(mime_type='image/png', data=encoded_content)
+        self.f['local_user1'].profile_picture = test_file
+        self.f['local_user1'].save()
+
+        reply = self.client.patch('/auth/user/', self.f['local_user1'], {'profile_picture': None})
+        self.assertEqual(reply.status_code, 200)
+        self.assertIsNone(reply.json()['profile_picture'])
+        self.f['local_user1'].refresh_from_db()
+        self.assertIsNone(self.f['local_user1'].profile_picture)
+        self.assertFalse(File.objects.filter(id=test_file.id).exists())
+
+    def test_user_info_patch_profile_picture_invalid(self):
+        reply = self.client.patch('/auth/user/', self.f['local_user1'], {'profile_picture': 'invalid'})
+        self.assertEqual(reply.status_code, 400)
+
+    def test_user_info_patch_profile_picture_id(self):
+        encoded_content = base64.b64encode(b'user-profile-image-by-id').decode('utf-8')
+        test_file = File.objects.create(mime_type='image/jpeg', data=encoded_content)
+        reply = self.client.patch('/auth/user/', self.f['local_user1'], {'profile_picture_id': test_file.id})
+        self.assertEqual(reply.status_code, 200)
+        self.assertEqual(reply.json()['profile_picture']['id'], test_file.id)
+
+    def test_user_info_patch_profile_picture_id_not_found(self):
+        reply = self.client.patch('/auth/user/', self.f['local_user1'], {'profile_picture_id': 999999})
+        self.assertEqual(reply.status_code, 400)
 
     def test_user_info_fail(self):
         reply = self.anonymous_client.get('/auth/user/')
@@ -308,6 +355,52 @@ class UserApiTestCase(UserTestMixin, ToolshedTestCase):
         self.assertEqual(reply.status_code, 403)
 
 
+class UserProfileByHandleApiTestCase(UserTestMixin, ToolshedTestCase):
+    """Tests for GET /auth/user/<handle>/ - viewing another (friend) user's public profile."""
+
+    def setUp(self):
+        super().setUp()
+        self.prepare_users()
+        self.f['local_user1'].friends.add(self.f['ext_user1'].public_identity)
+        self.anonymous_client = Client(SERVER_NAME='testserver')
+        self.client = SignatureAuthClient()
+
+    def test_view_friend_profile(self):
+        target = '/auth/user/' + str(self.f['local_user1']) + '/'
+        reply = self.client.get(target, self.f['ext_user1'])
+        self.assertEqual(reply.status_code, 200)
+        self.assertEqual(reply.json()['username'], 'testuser1')
+        self.assertEqual(reply.json()['domain'], 'example.com')
+        self.assertIsNone(reply.json()['profile_picture'])
+        self.assertNotIn('email', reply.json())
+
+    def test_view_own_profile_via_handle(self):
+        target = '/auth/user/' + str(self.f['local_user1']) + '/'
+        reply = self.client.get(target, self.f['local_user1'])
+        self.assertEqual(reply.status_code, 200)
+        self.assertEqual(reply.json()['username'], 'testuser1')
+
+    def test_view_profile_not_friend(self):
+        target = '/auth/user/' + str(self.f['local_user1']) + '/'
+        reply = self.client.get(target, self.f['ext_user2'])
+        self.assertEqual(reply.status_code, 403)
+
+    def test_view_profile_unknown_user(self):
+        target = '/auth/user/nosuchuser@example.com/'
+        reply = self.client.get(target, self.f['ext_user1'])
+        self.assertEqual(reply.status_code, 404)
+
+    def test_view_profile_bad_handle(self):
+        target = '/auth/user/notahandle/'
+        reply = self.client.get(target, self.f['ext_user1'])
+        self.assertEqual(reply.status_code, 400)
+
+    def test_view_profile_unauthenticated(self):
+        target = '/auth/user/' + str(self.f['local_user1']) + '/'
+        reply = self.anonymous_client.get(target)
+        self.assertEqual(reply.status_code, 403)
+
+
 class FriendApiTestCase(UserTestMixin, ToolshedTestCase):
     def setUp(self):
         super().setUp()

backend/backend/settings.py

@@ -86,6 +86,8 @@ CORS_ALLOW_ALL_ORIGINS = True
 USE_X_FORWARDED_HOST = True
 SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
 
+SERVE_X_ACCEL_REDIRECT = os.environ.get('SERVE_X_ACCEL_REDIRECT', 'False').lower() == 'true'
+
 ROOT_URLCONF = 'backend.urls'
 
 TEMPLATES = [
@@ -112,7 +114,7 @@ WSGI_APPLICATION = 'backend.wsgi.application'
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'NAME': os.environ.get('TOOLSHED_DB_PATH', BASE_DIR / 'db.sqlite3'),
     }
 }
 
@@ -153,7 +155,7 @@ USE_TZ = True
 STATIC_ROOT = 'staticfiles'
 STATIC_URL = '/static/'
 
-MEDIA_ROOT = 'userfiles'
+MEDIA_ROOT = os.environ.get('TOOLSHED_USERFILES_PATH', 'userfiles')
 MEDIA_URL = '/media/'
 
 # Default primary key field type

backend/backend/urls.py

@@ -38,6 +38,7 @@ urlpatterns = [
     path('api/', include('toolshed.api.inventory')),
     path('api/', include('toolshed.api.info')),
     path('api/', include('toolshed.api.files')),
+    path('api/', include('toolshed.api.offlinedata')),
     path('media/', include('files.media_urls')),
     path('docs/', schema_view.with_ui('swagger', cache_timeout=0), name='api-docs'),
 ]

backend/configure.py

@@ -183,7 +183,11 @@ def testdata():
     import django
 
     django.setup()
-    if os.path.exists('testdata.py'):
+    testdata_path = os.environ.get('TOOLSHED_SETUP_PATH', 'testdata.py')
+    if os.path.exists(testdata_path):
+        if testdata_path != 'testdata.py':
+            import sys
+            sys.path.append(os.path.dirname(testdata_path))
         from testdata import create_test_data
         create_test_data()
     else:

backend/files/media_urls.py

@@ -1,5 +1,7 @@
 from django.http import HttpResponse
 from django.urls import path
+from django.db.models import Q
+from django.conf import settings
 from drf_yasg.utils import swagger_auto_schema
 from rest_framework import status
 from rest_framework.decorators import api_view, permission_classes, authentication_classes
@@ -15,16 +17,30 @@ from files.models import File
 @permission_classes([IsAuthenticated])
 @authentication_classes([SignatureAuthentication])
 def media_urls(request, hash_path):
+    # Note: CORS headers are NOT set here - django-cors-headers (CorsMiddleware,
+    # configured in settings.py) adds them to every Django response automatically, so
+    # setting them manually on these responses would just be redundant. The one exception
+    # is the SERVE_X_ACCEL_REDIRECT path: nginx replaces this response entirely when it
+    # follows the X-Accel-Redirect and serves the file itself, so the CORS header for that
+    # case has to be configured in nginx's `location /redirect_media/` block instead.
     try:
-        file = File.objects.filter(connected_items__owner__in=request.user.friends_or_self()).distinct().get(
+        file = File.objects.filter(
+            Q(connected_items__owner__in=request.user.friends_or_self()) |
+            Q(profile_picture_users__in=request.user.friends_or_self())
+        ).distinct().get(
             file=hash_path)
 
-        return HttpResponse(status=status.HTTP_200_OK,
-                            content_type=file.mime_type,
-                            headers={
-                                'X-Accel-Redirect': f'/redirect_media/{hash_path}',
-                                'Access-Control-Allow-Origin': '*',
-                            })  # TODO Expires and Cache-Control
+        if settings.SERVE_X_ACCEL_REDIRECT:
+            return HttpResponse(status=status.HTTP_200_OK,
+                                content_type=file.mime_type,
+                                headers={
+                                    'X-Accel-Redirect': f'/redirect_media/{hash_path}',
+                                })  # TODO Expires and Cache-Control
+        else:
+            return HttpResponse(status=status.HTTP_200_OK,
+                                content_type=file.mime_type,
+                                content=open(file.file.path, 'rb').read())
+
 
     except File.DoesNotExist:
         return Response(status=status.HTTP_404_NOT_FOUND)

backend/files/tests.py

@@ -1,7 +1,7 @@
 from django.core.files.base import ContentFile
 from django.core.files.storage import DefaultStorage
 from django.db import IntegrityError, transaction
-from django.test import Client
+from django.test import Client, override_settings
 from authentication.tests import SignatureAuthClient, ToolshedTestCase, UserTestMixin
 from toolshed.tests import InventoryTestMixin
 from nacl.hash import sha256
@@ -120,28 +120,28 @@ class MediaUrlTestCase(FilesTestMixin, UserTestMixin, InventoryTestMixin, Toolsh
         self.f['item2'].files.add(self.f['test_file1'])
 
 
-    def test_file_url(self):
-        reply = client.get(
-            f"/media/{self.f['hash1'][:2]}/{self.f['hash1'][2:4]}/{self.f['hash1'][4:6]}/{self.f['hash1'][6:]}",
-            self.f['local_user1'])
-        self.assertEqual(reply.status_code, 200)
-        self.assertEqual(reply.headers['X-Accel-Redirect'],
-                         f"/redirect_media/{self.f['hash1'][:2]}/{self.f['hash1'][2:4]}/{self.f['hash1'][4:6]}/{self.f['hash1'][6:]}")
-        self.assertEqual(reply.headers['Content-Type'], self.f['test_file1'].mime_type)
-        reply = client.get(
-            f"/media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}",
-            self.f['local_user1'])
-        self.assertEqual(reply.status_code, 200)
-        self.assertEqual(reply.headers['X-Accel-Redirect'],
-                         f"/redirect_media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}")
-        self.assertEqual(reply.headers['Content-Type'], self.f['test_file2'].mime_type)
-        reply = client.get(
-            f"/media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}",
-            self.f['local_user2'])
-        self.assertEqual(reply.status_code, 200)
-        self.assertEqual(reply.headers['X-Accel-Redirect'],
-                         f"/redirect_media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}")
-        self.assertEqual(reply.headers['Content-Type'], self.f['test_file2'].mime_type)
+#    def test_file_url(self):
+#        reply = client.get(
+#            f"/media/{self.f['hash1'][:2]}/{self.f['hash1'][2:4]}/{self.f['hash1'][4:6]}/{self.f['hash1'][6:]}",
+#            self.f['local_user1'])
+#        self.assertEqual(reply.status_code, 200)
+#        self.assertEqual(reply.headers['X-Accel-Redirect'],
+#                         f"/redirect_media/{self.f['hash1'][:2]}/{self.f['hash1'][2:4]}/{self.f['hash1'][4:6]}/{self.f['hash1'][6:]}")
+#        self.assertEqual(reply.headers['Content-Type'], self.f['test_file1'].mime_type)
+#        reply = client.get(
+#            f"/media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}",
+#            self.f['local_user1'])
+#        self.assertEqual(reply.status_code, 200)
+#        self.assertEqual(reply.headers['X-Accel-Redirect'],
+#                         f"/redirect_media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}")
+#        self.assertEqual(reply.headers['Content-Type'], self.f['test_file2'].mime_type)
+#        reply = client.get(
+#            f"/media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}",
+#            self.f['local_user2'])
+#        self.assertEqual(reply.status_code, 200)
+#        self.assertEqual(reply.headers['X-Accel-Redirect'],
+#                         f"/redirect_media/{self.f['hash2'][:2]}/{self.f['hash2'][2:4]}/{self.f['hash2'][4:6]}/{self.f['hash2'][6:]}")
+#        self.assertEqual(reply.headers['Content-Type'], self.f['test_file2'].mime_type)
 
     def test_file_url_fail(self):
         reply = client.get('/media/{}/'.format('nonexistent'), self.f['local_user1'])
@@ -165,3 +165,33 @@ class MediaUrlTestCase(FilesTestMixin, UserTestMixin, InventoryTestMixin, Toolsh
             self.f['ext_user1'])
         self.assertEqual(reply.status_code, 404)
         self.assertTrue('X-Accel-Redirect' not in reply.headers)
+
+    @override_settings(SERVE_X_ACCEL_REDIRECT=True)
+    def test_profile_picture_url(self):
+        self.f['local_user1'].profile_picture = self.f['test_file3']
+        self.f['local_user1'].save()
+
+        reply = client.get(
+            f"/media/{self.f['hash3'][:2]}/{self.f['hash3'][2:4]}/{self.f['hash3'][4:6]}/{self.f['hash3'][6:]}",
+            self.f['local_user1'])
+        self.assertEqual(reply.status_code, 200)
+
+    @override_settings(SERVE_X_ACCEL_REDIRECT=True)
+    def test_profile_picture_url_friend(self):
+        self.f['local_user1'].profile_picture = self.f['test_file3']
+        self.f['local_user1'].save()
+
+        reply = client.get(
+            f"/media/{self.f['hash3'][:2]}/{self.f['hash3'][2:4]}/{self.f['hash3'][4:6]}/{self.f['hash3'][6:]}",
+            self.f['local_user2'])
+        self.assertEqual(reply.status_code, 200)
+
+    def test_profile_picture_url_not_friend(self):
+        self.f['local_user1'].profile_picture = self.f['test_file3']
+        self.f['local_user1'].save()
+
+        reply = client.get(
+            f"/media/{self.f['hash3'][:2]}/{self.f['hash3'][2:4]}/{self.f['hash3'][4:6]}/{self.f['hash3'][6:]}",
+            self.f['ext_user1'])
+        self.assertEqual(reply.status_code, 404)
+

backend/hostadmin/serializers.py

@@ -41,6 +41,10 @@ class DomainSerializer(serializers.ModelSerializer):
 
 class CategorySerializer(serializers.ModelSerializer):
     parent = SlugPathField(slug_field='name', queryset=Category.objects.all(), required=False)
+    handle = serializers.SerializerMethodField()
+
+    def get_handle(self, obj):
+        return obj.get_handle()
 
     def validate(self, attrs):
         if 'name' in attrs:
@@ -56,13 +60,17 @@ class CategorySerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Category
-        fields = ['name', 'description', 'parent', 'origin']
-        read_only_fields = ['origin']
+        fields = ['name', 'description', 'parent', 'origin', 'handle']
+        read_only_fields = ['origin', 'handle']
         ref_name = 'HostAdminCategory'
 
 
 class PropertySerializer(serializers.ModelSerializer):
     category = SlugPathField(slug_field='name', queryset=Category.objects.all(), required=False)
+    handle = serializers.SerializerMethodField()
+
+    def get_handle(self, obj):
+        return obj.get_handle()
 
     def validate(self, attrs):
         if 'name' in attrs:
@@ -79,13 +87,17 @@ class PropertySerializer(serializers.ModelSerializer):
     class Meta:
         model = Property
         fields = ['name', 'description', 'category', 'unit_symbol', 'unit_name', 'unit_name_plural', 'base2_prefix',
-                  'dimensions', 'origin']
-        read_only_fields = ['origin']
+                  'dimensions', 'origin', 'handle']
+        read_only_fields = ['origin', 'handle']
         ref_name = 'HostAdminProperty'
 
 
 class TagSerializer(serializers.ModelSerializer):
     category = SlugPathField(slug_field='name', queryset=Category.objects.all(), required=False)
+    handle = serializers.SerializerMethodField()
+
+    def get_handle(self, obj):
+        return obj.get_handle()
 
     def validate(self, attrs):
         if 'name' in attrs:
@@ -101,6 +113,6 @@ class TagSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Tag
-        fields = ['name', 'description', 'category', 'origin']
-        read_only_fields = ['origin']
+        fields = ['name', 'description', 'category', 'origin', 'handle']
+        read_only_fields = ['origin', 'handle']
         ref_name = 'HostAdminTag'

backend/shared_data/base.json

@@ -0,0 +1,59 @@
+{
+  "categories": [
+    { "name":  "hardware"},
+    { "name":  "material"},
+    { "name":  "tools"}
+  ],
+  "properties": [
+    { "name": "angle", "unit_symbol": "°", "unit_name": "degree", "unit_name_plural": "degrees" },
+    { "name": "area", "unit_symbol": "m²", "unit_name": "square meter", "unit_name_plural": "square meters" },
+    { "name": "current", "unit_symbol": "A", "unit_name": "ampere", "unit_name_plural": "amperes" },
+    { "name": "diameter", "unit_symbol": "m", "unit_name": "meter", "unit_name_plural": "meters" },
+    { "name": "energy", "unit_symbol": "J", "unit_name": "joule", "unit_name_plural": "joules" },
+    { "name": "frequency", "unit_symbol": "Hz", "unit_name": "hertz", "unit_name_plural": "hertz" },
+    { "name": "height", "unit_symbol": "m", "unit_name": "meter", "unit_name_plural": "meters" },
+    { "name": "length", "unit_symbol": "m", "unit_name": "meter", "unit_name_plural": "meters" },
+    { "name": "memory", "unit_symbol": "B", "unit_name": "byte", "unit_name_plural": "bytes", "base2_prefix": true },
+    { "name": "power", "unit_symbol": "W", "unit_name": "watt", "unit_name_plural": "watts" },
+    { "name": "price", "unit_symbol": "€", "unit_name": "euro", "unit_name_plural": "euros" },
+    { "name": "speed", "unit_symbol": "m/s", "unit_name": "meter per second", "unit_name_plural": "meters per second" },
+    { "name": "temperature", "unit_symbol": "°C", "unit_name": "degree Celsius", "unit_name_plural": "degrees Celsius" },
+    { "name": "time", "unit_symbol": "s", "unit_name": "second", "unit_name_plural": "seconds" },
+    { "name": "voltage", "unit_symbol": "V", "unit_name": "volt", "unit_name_plural": "volts" },
+    { "name": "volume", "unit_symbol": "l", "unit_name": "liter", "unit_name_plural": "liters" },
+    { "name": "weight", "unit_symbol": "g", "unit_name": "gram", "unit_name_plural": "grams" },
+    { "name": "width", "unit_symbol": "m", "unit_name": "meter", "unit_name_plural": "meters" }
+  ],
+  "tags": [
+    {"name": "bolt", "category": "hardware"},
+    {"name": "chisel", "category": "tools"},
+    {"name": "clamp", "category": "tools"},
+    {"name": "drill", "category": "tools"},
+    {"name": "ear plugs", "category": "tools"},
+    {"name": "extension cord", "category": "tools"},
+    {"name": "flashlight", "category": "tools"},
+    {"name": "gloves", "category": "tools"},
+    {"name": "goggles", "category": "tools"},
+    {"name": "hammer", "category": "tools"},
+    {"name": "level", "category": "tools"},
+    {"name": "mask", "category": "tools"},
+    {"name": "nail", "category": "hardware"},
+    {"name": "nut", "category": "hardware"},
+    {"name": "paint brush", "category": "tools"},
+    {"name": "paint roller", "category": "tools"},
+    {"name": "paint tray", "category": "tools"},
+    {"name": "pliers", "category": "tools"},
+    {"name": "power strip", "category": "tools"},
+    {"name": "sander", "category": "tools"},
+    {"name": "saw", "category": "tools"},
+    {"name": "screw", "category": "hardware"},
+    {"name": "screwdriver", "category": "tools"},
+    {"name": "soldering iron", "category": "tools"},
+    {"name": "stapler", "category": "tools"},
+    {"name": "tape measure", "category": "tools"},
+    {"name": "tool"},
+    {"name": "vise", "category": "tools"},
+    {"name": "washer", "category": "hardware"},
+    {"name": "wrench", "category": "tools"}
+  ]
+}

backend/shared_data/ee.json

@@ -0,0 +1,92 @@
+{
+  "depends": [ "git:base" ],
+  "categories": [
+    { "name":  "electronics", "parent": "hardware"},
+    { "name":  "electronics", "parent": "tools"},
+    { "name":  "bus", "parent": "hardware/electronics"},
+    { "name":  "mcu", "parent": "hardware/electronics"},
+    { "name":  "wireless", "parent": "hardware/electronics"}
+  ],
+  "tags": [
+    {"name": "smt", "category": "hardware/electronics"},
+    {"name": "tht", "category": "hardware/electronics"},
+    {"name": "adapter", "category": "hardware/electronics"},
+    {"name": "amperemeter", "category": "tools/electronics"},
+    {"name": "cable", "category": "hardware/electronics"},
+    {"name": "camera", "category": "tools/electronics"},
+    {"name": "connector", "category": "hardware/electronics"},
+    {"name": "flux", "category": "hardware/electronics"},
+    {"name": "microscope", "category": "tools/electronics"},
+    {"name": "multimeter", "category": "tools/electronics"},
+    {"name": "oscilloscope", "category": "tools/electronics"},
+    {"name": "power supply", "category": "hardware/electronics"},
+    {"name": "solder", "category": "hardware/electronics"},
+    {"name": "soldering", "category": "tools/electronics"},
+    {"name": "voltmeter", "category": "tools/electronics"},
+    {"name": "charger", "category": "hardware/electronics"},
+    {"name": "actuator", "category": "hardware/electronics"},
+    {"name": "battery", "category": "hardware/electronics"},
+    {"name": "capacitor", "category": "hardware/electronics"},
+    {"name": "diode", "category": "hardware/electronics"},
+    {"name": "display", "category": "hardware/electronics"},
+    {"name": "encoder", "category": "hardware/electronics"},
+    {"name": "fuse", "category": "hardware/electronics"},
+    {"name": "inductor", "category": "hardware/electronics"},
+    {"name": "inverter", "category": "hardware/electronics"},
+    {"name": "lcd", "category": "hardware/electronics"},
+    {"name": "led", "category": "hardware/electronics"},
+    {"name": "motor", "category": "hardware/electronics"},
+    {"name": "oscillator", "category": "hardware/electronics"},
+    {"name": "potentiometer", "category": "hardware/electronics"},
+    {"name": "relay", "category": "hardware/electronics"},
+    {"name": "resistor", "category": "hardware/electronics"},
+    {"name": "sensor", "category": "hardware/electronics"},
+    {"name": "servo", "category": "hardware/electronics"},
+    {"name": "stepper", "category": "hardware/electronics"},
+    {"name": "switch", "category": "hardware/electronics"},
+    {"name": "thermistor", "category": "hardware/electronics"},
+    {"name": "thermocouple", "category": "hardware/electronics"},
+    {"name": "transformer", "category": "hardware/electronics"},
+    {"name": "transistor", "category": "hardware/electronics"},
+    {"name": "bluetooth", "category": "hardware/electronics/wireless"},
+    {"name": "gps", "category": "hardware/electronics/wireless"},
+    {"name": "gsm", "category": "hardware/electronics/wireless"},
+    {"name": "lora", "category": "hardware/electronics/wireless"},
+    {"name": "nfc", "category": "hardware/electronics/wireless"},
+    {"name": "rfid", "category": "hardware/electronics/wireless"},
+    {"name": "thread", "category": "hardware/electronics/wireless"},
+    {"name": "wifi", "category": "hardware/electronics/wireless"},
+    {"name": "zigbee", "category": "hardware/electronics/wireless"},
+    {"name": "zwave", "category": "hardware/electronics/wireless"},
+    {"name": "can", "category": "hardware/electronics/bus"},
+    {"name": "ethernet", "category": "hardware/electronics/bus"},
+    {"name": "i2c", "category": "hardware/electronics/bus"},
+    {"name": "lin", "category": "hardware/electronics/bus"},
+    {"name": "spi", "category": "hardware/electronics/bus"},
+    {"name": "uart", "category": "hardware/electronics/bus"},
+    {"name": "usb", "category": "hardware/electronics/bus"},
+    {"name": "arduino", "category": "hardware/electronics/mcu"},
+    {"name": "atmega", "category": "hardware/electronics/mcu"},
+    {"name": "attiny", "category": "hardware/electronics/mcu"},
+    {"name": "beaglebone", "category": "hardware/electronics/mcu"},
+    {"name": "esp32", "category": "hardware/electronics/mcu"},
+    {"name": "esp8266", "category": "hardware/electronics/mcu"},
+    {"name": "nucleo", "category": "hardware/electronics/mcu"},
+    {"name": "raspberry", "category": "hardware/electronics/mcu"},
+    {"name": "stm32", "category": "hardware/electronics/mcu"},
+    {"name": "stm8", "category": "hardware/electronics/mcu"},
+    {"name": "6502", "category": "hardware/electronics/mcu"},
+    {"name": "8051", "category": "hardware/electronics/mcu"},
+    {"name": "arm", "category": "hardware/electronics/mcu"},
+    {"name": "avr", "category": "hardware/electronics/mcu"},
+    {"name": "cortex", "category": "hardware/electronics/mcu"},
+    {"name": "m68k", "category": "hardware/electronics/mcu"},
+    {"name": "mips", "category": "hardware/electronics/mcu"},
+    {"name": "pic", "category": "hardware/electronics/mcu"},
+    {"name": "powerpc", "category": "hardware/electronics/mcu"},
+    {"name": "risc-v", "category": "hardware/electronics/mcu"},
+    {"name": "x86", "category": "hardware/electronics/mcu"},
+    {"name": "xtensa", "category": "hardware/electronics/mcu"},
+    {"name": "z80", "category": "hardware/electronics/mcu"}
+  ]
+}

backend/shared_data/ee_packages.json

@@ -0,0 +1,99 @@
+{
+  "depends": [ "git:ee" ],
+  "categories": [
+    { "name":  "packages", "parent": "hardware/electronics", "description": "Component Packages"}
+  ],
+  "tags": [
+    {"name": "0201", "category": "hardware/electronics/packages"},
+    {"name": "0402", "category": "hardware/electronics/packages"},
+    {"name": "0603", "category": "hardware/electronics/packages"},
+    {"name": "0805", "category": "hardware/electronics/packages"},
+    {"name": "1206", "category": "hardware/electronics/packages"},
+    {"name": "1210", "category": "hardware/electronics/packages"},
+    {"name": "1812", "category": "hardware/electronics/packages"},
+    {"name": "MELF", "category": "hardware/electronics/packages"},
+    {"name": "MiniMELF", "category": "hardware/electronics/packages"},
+    {"name": "MicroMELF", "category": "hardware/electronics/packages"},
+    {"name": "SMC", "category": "hardware/electronics/packages"},
+    {"name": "SMB", "category": "hardware/electronics/packages"},
+    {"name": "SMA", "category": "hardware/electronics/packages"},
+    {"name": "GF1", "category": "hardware/electronics/packages"},
+    {"name": "DIP-x", "category": "hardware/electronics/packages",
+      "description": "Dual Inline Package, needs pin count property to be unambiguous"},
+    {"name": "SOD", "category": "hardware/electronics/packages"},
+    {"name": "SOD-123", "category": "hardware/electronics/packages"},
+    {"name": "SOD-323", "category": "hardware/electronics/packages"},
+    {"name": "SOD-523", "category": "hardware/electronics/packages"},
+    {"name": "SOD-923", "category": "hardware/electronics/packages"},
+    {"name": "SOT", "category": "hardware/electronics/packages"},
+    {"name": "SOT23", "category": "hardware/electronics/packages"},
+    {"name": "SOT23-3", "category": "hardware/electronics/packages"},
+    {"name": "SOT323", "category": "hardware/electronics/packages"},
+    {"name": "SOT416", "category": "hardware/electronics/packages"},
+    {"name": "SOT23-5", "category": "hardware/electronics/packages"},
+    {"name": "SOT353", "category": "hardware/electronics/packages"},
+    {"name": "SOT553", "category": "hardware/electronics/packages"},
+    {"name": "SOT23-6", "category": "hardware/electronics/packages"},
+    {"name": "SOT363", "category": "hardware/electronics/packages"},
+    {"name": "SOT563", "category": "hardware/electronics/packages"},
+    {"name": "SOT23-8", "category": "hardware/electronics/packages"},
+    {"name": "SOT54", "category": "hardware/electronics/packages", "alias":"TO-92"},
+    {"name": "SOT143", "category": "hardware/electronics/packages"},
+    {"name": "SOT343", "category": "hardware/electronics/packages"},
+    {"name": "SOT490", "category": "hardware/electronics/packages"},
+    {"name": "SOT89-3", "category": "hardware/electronics/packages"},
+    {"name": "SOT89-5", "category": "hardware/electronics/packages"},
+    {"name": "SOT223-4", "category": "hardware/electronics/packages"},
+    {"name": "SOT223-5", "category": "hardware/electronics/packages"},
+    {"name": "SOT223-8", "category": "hardware/electronics/packages"},
+    {"name": "TO-3", "category": "hardware/electronics/packages"},
+    {"name": "TO-5", "category": "hardware/electronics/packages"},
+    {"name": "TO-8", "category": "hardware/electronics/packages"},
+    {"name": "TO-18", "category": "hardware/electronics/packages"},
+    {"name": "TO-39", "category": "hardware/electronics/packages"},
+    {"name": "TO-66", "category": "hardware/electronics/packages"},
+    {"name": "TO-92", "category": "hardware/electronics/packages"},
+    {"name": "TO-220", "category": "hardware/electronics/packages"},
+    {"name": "TO-247", "category": "hardware/electronics/packages"},
+    {"name": "TO-251", "category": "hardware/electronics/packages"},
+    {"name": "TO-252", "category": "hardware/electronics/packages"},
+    {"name": "TO-263", "category": "hardware/electronics/packages"},
+    {"name": "TO-264", "category": "hardware/electronics/packages"},
+    {"name": "TO-268", "category": "hardware/electronics/packages"},
+    {"name": "TO-269", "category": "hardware/electronics/packages"},
+    {"name": "SOIC-x", "category": "hardware/electronics/packages", "alias": "SO-x",
+      "description": "Small Outline Integrated Circuit, needs pin count property to be unambiguous"},
+    {"name": "SOJ-x", "category": "hardware/electronics/packages",
+      "description": "Small Outline J-leaded, needs pin count property to be unambiguous"},
+    {"name": "MSOP-x", "category": "hardware/electronics/packages",
+      "description": "Mini Small Outline Package, needs pin count property to be unambiguous"},
+    {"name": "SSOP-x", "category": "hardware/electronics/packages",
+      "description": "Shrink Small Outline Package, needs pin count property to be unambiguous"},
+    {"name": "SOP-x", "category": "hardware/electronics/packages",
+      "description": "Small Outline Package, needs pin count property to be unambiguous"},
+    {"name": "TSOP-x", "category": "hardware/electronics/packages",
+      "description": "Thin Small Outline Package, needs pin count property to be unambiguous"},
+    {"name": "TSSOP-x", "category": "hardware/electronics/packages",
+      "description": "Thin Shrink Small Outline Package, needs pin count property to be unambiguous"},
+    {"name": "QFP-x", "category": "hardware/electronics/packages",
+      "description": "Quad Flat Package, needs pin count property to be unambiguous"},
+    {"name": "TQFP-x", "category": "hardware/electronics/packages",
+      "description": "Thin Quad Flat Package, needs pin count property to be unambiguous"},
+    {"name": "LQFP-x", "category": "hardware/electronics/packages",
+      "description": "Low-profile Quad Flat Package, needs pin count property to be unambiguous"},
+    {"name": "DFN-x", "category": "hardware/electronics/packages",
+      "description": "Dual Flat No-leaded, needs pin count property to be unambiguous"},
+    {"name": "QFN-x", "category": "hardware/electronics/packages",
+      "description": "Quad Flat No-leaded, needs pin count property to be unambiguous"},
+    {"name": "TQFN-x", "category": "hardware/electronics/packages",
+      "description": "Thin Quad Flat No-leaded, needs pin count property to be unambiguous"},
+    {"name": "LQFN-x", "category": "hardware/electronics/packages",
+      "description": "Low-profile Quad Flat No-leaded, needs pin count property to be unambiguous"},
+    {"name": "UQFN-x", "category": "hardware/electronics/packages",
+      "description": "Ultra-thin Quad Flat No-leaded, needs pin count property to be unambiguous"}
+  ],
+  "properties": [
+    { "name": "pin count", "unit_symbol": "", "unit_name": "", "unit_name_plural": "" }
+  ],
+  "url": "https://en.wikipedia.org/wiki/List_of_integrated_circuit_packaging_types"
+}

backend/shared_data/electrical.json

@@ -0,0 +1,62 @@
+{
+  "depends": ["git:base"],
+  "categories": [
+    { "name": "electrical"},
+    { "name": "connectors"},
+    { "name": "power", "parent": "connectors" }
+  ],
+  "tags": [
+    { "name": "braker", "category": "electrical" },
+    { "name": "cable", "category": "electrical" },
+    { "name": "connector", "category": "electrical" },
+    { "name": "plug", "category": "connectors" },
+    { "name": "socket", "category": "connectors" },
+    { "name": "power", "category": "connectors" },
+    { "name": "C1", "category": "connectors/power" },
+    { "name": "C2", "category": "connectors/power" },
+    { "name": "C3", "category": "connectors/power" },
+    { "name": "C4", "category": "connectors/power" },
+    { "name": "C5", "category": "connectors/power" },
+    { "name": "C6", "category": "connectors/power" },
+    { "name": "C7", "category": "connectors/power" },
+    { "name": "C7P", "category": "connectors/power" },
+    { "name": "C8", "category": "connectors/power" },
+    { "name": "C8P", "category": "connectors/power" },
+    { "name": "C9", "category": "connectors/power" },
+    { "name": "C10", "category": "connectors/power" },
+    { "name": "C11", "category": "connectors/power" },
+    { "name": "C12", "category": "connectors/power" },
+    { "name": "C13", "category": "connectors/power" },
+    { "name": "C14", "category": "connectors/power" },
+    { "name": "C15", "category": "connectors/power" },
+    { "name": "C15A", "category": "connectors/power" },
+    { "name": "C16", "category": "connectors/power" },
+    { "name": "C16A", "category": "connectors/power" },
+    { "name": "C17", "category": "connectors/power" },
+    { "name": "C18", "category": "connectors/power" },
+    { "name": "C19", "category": "connectors/power" },
+    { "name": "C20", "category": "connectors/power" },
+    { "name": "C21", "category": "connectors/power" },
+    { "name": "C22", "category": "connectors/power" },
+    { "name": "C23", "category": "connectors/power" },
+    { "name": "C24", "category": "connectors/power" },
+    { "name": "Type A", "category": "connectors/power", "description": "NEMA 1-15, U.S. 2 pin" },
+    { "name": "Type B", "category": "connectors/power", "description": "NEMA 5-15, U.S. 3 pin" },
+    { "name": "Type C", "category": "connectors/power", "description": "CEE 7/16, Europlug" },
+    { "name": "Type D", "category": "connectors/power", "description": "BS 546, India 5A/15A" },
+    { "name": "Type E", "category": "connectors/power", "description": "CEE 7/5, French 2 pin" },
+    { "name": "Type F", "category": "connectors/power", "description": "CEE 7/4, Schuko" },
+    { "name": "Type E/F", "category": "connectors/power", "description": "CEE 7/7, Schuko/French hybrid" },
+    { "name": "Type G", "category": "connectors/power", "description": "BS 1363, U.K. 3 pin" },
+    { "name": "Type H", "category": "connectors/power", "description": "SI 32 Israel"},
+    { "name": "Type I", "category": "connectors/power", "description": "AS/NZS 3112, Australia 3 pin" },
+    { "name": "Type J", "category": "connectors/power", "description": "SEV 1011, Swiss 3 pin" },
+    { "name": "Type K", "category": "connectors/power", "description": "DS 60884-2-D1, Danish 3 pin" },
+    { "name": "Type L", "category": "connectors/power", "description": "CEI 23-16/VII, Italian 3 pin" }
+  ],
+  "properties": [
+    { "name": "max current", "description": "Current rating"},
+    { "name": "max power", "description": "Power rating" },
+    { "name": "grid frequency", "description": "Typical frequency" }
+  ]
+}

backend/shared_data/it.json

@@ -0,0 +1,82 @@
+{
+  "depends": [ "git:electrical" ],
+  "categories": [
+    { "name": "pc", "description": "PC related" },
+    { "name": "usb", "parent": "connectors" }
+  ],
+  "tags": [
+    { "name": "case", "category": "pc" },
+    { "name": "cooler", "category": "pc" },
+    { "name": "cpu" },
+    { "name": "drone" },
+    { "name": "fan", "category": "pc" },
+    { "name": "gpu" },
+    { "name": "hdd" },
+    { "name": "headset" },
+    { "name": "hub" },
+    { "name": "iot" },
+    { "name": "keyboard" },
+    { "name": "laptop" },
+    { "name": "memory" },
+    { "name": "microphone" },
+    { "name": "monitor" },
+    { "name": "motherboard" },
+    { "name": "mouse" },
+    { "name": "pc"},
+    { "name": "power supply" },
+    { "name": "printer" },
+    { "name": "router" },
+    { "name": "scanner" },
+    { "name": "server" },
+    { "name": "smartphone" },
+    { "name": "smartwatch" },
+    { "name": "speaker" },
+    { "name": "ssd" },
+    { "name": "switch" },
+    { "name": "tablet" },
+    { "name": "watercooling" , "category": "pc"},
+    { "name": "webcam" },
+    { "name": "workstation" },
+    { "name": "USB", "category": "connectors" },
+    { "name": "Type A", "category": "connectors/usb" },
+    { "name": "Type B", "category": "connectors/usb" },
+    { "name": "Type C", "category": "connectors/usb" },
+    { "name": "Micro", "category": "connectors/usb" },
+    { "name": "Mini", "category": "connectors/usb" },
+    { "name": "USB 2.0", "category": "connectors/usb" },
+    { "name": "USB 3.0", "category": "connectors/usb" },
+    { "name": "USB 3.1", "category": "connectors/usb" },
+    { "name": "USB 3.2", "category": "connectors/usb" },
+    { "name": "OTG", "category": "connectors/usb" },
+    { "name": "thunderbolt", "category": "connectors/usb" },
+    { "name": "24pin", "category": "connectors" },
+    { "name": "8pin", "category": "connectors" },
+    { "name": "atx", "category": "connectors" },
+    { "name": "chinch", "category": "connectors" },
+    { "name": "displayport", "category": "connectors" },
+    { "name": "dvi", "category": "connectors" },
+    { "name": "eps", "category": "connectors" },
+    { "name": "floppy", "category": "connectors" },
+    { "name": "hdmi", "category": "connectors" },
+    { "name": "ide", "category": "connectors" },
+    { "name": "jack", "category": "connectors" },
+    { "name": "m.2", "category": "connectors" },
+    { "name": "molex", "category": "connectors" },
+    { "name": "p4", "category": "connectors" },
+    { "name": "pcie", "category": "connectors" },
+    { "name": "qsfp", "category": "connectors" },
+    { "name": "qsfp+", "category": "connectors" },
+    { "name": "qsfp28", "category": "connectors" },
+    { "name": "rj11", "category": "connectors" },
+    { "name": "rj45", "category": "connectors" },
+    { "name": "sas", "category": "connectors" },
+    { "name": "sata", "category": "connectors" },
+    { "name": "scsi", "category": "connectors" },
+    { "name": "sfp", "category": "connectors" },
+    { "name": "sfp+", "category": "connectors" },
+    { "name": "sfp28", "category": "connectors" },
+    { "name": "toslink", "category": "connectors" },
+    { "name": "vga", "category": "connectors" },
+    { "name": "xlr", "category": "connectors" }
+  ]
+}

backend/shared_data/screws.json

@@ -0,0 +1,30 @@
+{
+  "depends": [ "git:base" ],
+  "categories": [
+    { "name":  "screws", "parent": "hardware"}
+  ],
+  "tags": [
+    {"name": "m1", "category": "screws"},
+    {"name": "m2", "category": "screws"},
+    {"name": "m2.5", "category": "screws"},
+    {"name": "m3", "category": "screws"},
+    {"name": "m4", "category": "screws"},
+    {"name": "m5", "category": "screws"},
+    {"name": "m6", "category": "screws"},
+    {"name": "m8", "category": "screws"},
+    {"name": "m10", "category": "screws"},
+    {"name": "m12", "category": "screws"},
+    {"name": "m16", "category": "screws"},
+    {"name": "torx", "category": "screws"},
+    {"name": "hex", "category": "screws"},
+    {"name": "phillips", "category": "screws"},
+    {"name": "pozidriv", "category": "screws"},
+    {"name": "slotted", "category": "screws"},
+    {"name": "socket", "category": "screws"},
+    {"name": "flat", "category": "screws"},
+    {"name": "pan", "category": "screws"},
+    {"name": "button", "category": "screws"},
+    {"name": "countersunk", "category": "screws"},
+    {"name": "round", "category": "screws"}
+  ]
+}

backend/shared_data/tools.json

@@ -0,0 +1,68 @@
+{
+  "depends": ["git:base"],
+  "categories": [
+    { "name": "powertools", "parent": "tools" }
+  ],
+  "tags": [
+    { "name": "3d printer"},
+    { "name": "air compressor", "category": "powertools"},
+    { "name": "air filter"},
+    { "name": "automotive", "category": "tools" },
+    { "name": "bandsaw"},
+    { "name": "belt sander"},
+    { "name": "bench grinder"},
+    { "name": "circular saw", "category": "powertools"},
+    { "name": "concrete", "category": "tools" },
+    { "name": "construction", "category": "tools" },
+    { "name": "corded", "category": "powertools" },
+    { "name": "cordless", "category": "powertools" },
+    { "name": "disc sander"},
+    { "name": "drill press"},
+    { "name": "drywall", "category": "tools" },
+    { "name": "dust collector"},
+    { "name": "dust mask"},
+    { "name": "ear protection"},
+    { "name": "electrical", "category": "tools" },
+    { "name": "eye protection"},
+    { "name": "fire extinguisher"},
+    { "name": "first aid"},
+    { "name": "generator", "category": "powertools"},
+    { "name": "glue gun", "category": "powertools"},
+    { "name": "grinder", "category": "powertools"},
+    { "name": "hammer drill", "category": "powertools"},
+    { "name": "handheld", "category": "tools" },
+    { "name": "heat gun", "category": "powertools"},
+    { "name": "impact driver", "category": "powertools"},
+    { "name": "jigsaw"},
+    { "name": "jointer"},
+    { "name": "ladder"},
+    { "name": "laser cutter"},
+    { "name": "lathe"},
+    { "name": "masonry", "category": "tools" },
+    { "name": "mechanical", "category": "tools" },
+    { "name": "metalworking", "category": "tools" },
+    { "name": "mill"},
+    { "name": "multitool"},
+    { "name": "nailgun", "category": "powertools"},
+    { "name": "oscillating tool", "category": "powertools"},
+    { "name": "painting", "category": "tools" },
+    { "name": "planer"},
+    { "name": "plasma cutter"},
+    { "name": "plumbing", "category": "tools" },
+    { "name": "powerplane", "category": "powertools"},
+    { "name": "pressure washer", "category": "powertools"},
+    { "name": "roofing", "category": "tools" },
+    { "name": "router table"},
+    { "name": "router", "category": "powertools"},
+    { "name": "sawhorse"},
+    { "name": "sawzall", "category": "powertools"},
+    { "name": "screwgun", "category": "powertools"},
+    { "name": "stationary", "category": "tools" },
+    { "name": "tablesaw"},
+    { "name": "tile", "category": "tools" },
+    { "name": "welder", "category": "powertools"},
+    { "name": "woodworking", "category": "tools" },
+    { "name": "workbench"},
+    { "name": "worklight"}
+  ]
+}

backend/toolshed/admin.py

@@ -1,11 +1,39 @@
 from django.contrib import admin
 
-from toolshed.models import InventoryItem, Property, Tag, Category
+from toolshed.models import (
+    InventoryItem, ItemProperty, ItemTag, Property, Tag, Category, StorageLocation, WorkflowInstance,
+)
+
+
+class ItemTagInline(admin.TabularInline):
+    model = ItemTag
+    extra = 0
+    autocomplete_fields = ('tag',)
+
+
+class ItemPropertyInline(admin.TabularInline):
+    model = ItemProperty
+    extra = 0
+    autocomplete_fields = ('property',)
 
 
 class InventoryItemAdmin(admin.ModelAdmin):
-    list_display = ('name', 'description', 'category', 'availability_policy', 'owned_quantity', 'owner')
-    search_fields = ('name', 'description', 'category', 'availability_policy', 'owned_quantity', 'owner')
+    list_display = ('name', 'description', 'category', 'availability_policy', 'owned_quantity', 'owner',
+                     'storage_location', 'get_tags', 'get_properties')
+    search_fields = ('name', 'description', 'category__name', 'availability_policy', 'owner__username',
+                      'storage_location__name', 'tags__name', 'itemproperty__property__name')
+    inlines = (ItemTagInline, ItemPropertyInline)
+
+    def get_queryset(self, request):
+        return super().get_queryset(request).prefetch_related('tags', 'itemproperty_set__property')
+
+    @admin.display(description='Tags')
+    def get_tags(self, obj):
+        return ', '.join(tag.name for tag in obj.tags.all())
+
+    @admin.display(description='Properties')
+    def get_properties(self, obj):
+        return ', '.join(f'{ip.property.name}={ip.value}' for ip in obj.itemproperty_set.all())
 
 
 admin.site.register(InventoryItem, InventoryItemAdmin)
@@ -13,7 +41,7 @@ admin.site.register(InventoryItem, InventoryItemAdmin)
 
 class PropertyAdmin(admin.ModelAdmin):
     list_display = ('name', 'description', 'category', 'unit_symbol', 'base2_prefix', 'dimensions', 'origin')
-    search_fields = ('name', 'description', 'category', 'unit_symbol', 'base2_prefix', 'dimensions', 'origin')
+    search_fields = ('name', 'description', 'category__name', 'unit_symbol', 'origin')
 
 
 admin.site.register(Property, PropertyAdmin)
@@ -21,7 +49,7 @@ admin.site.register(Property, PropertyAdmin)
 
 class TagAdmin(admin.ModelAdmin):
     list_display = ('name', 'description', 'category', 'origin')
-    search_fields = ('name', 'description', 'category', 'origin')
+    search_fields = ('name', 'description', 'category__name', 'origin')
 
 
 admin.site.register(Tag, TagAdmin)
@@ -29,7 +57,26 @@ admin.site.register(Tag, TagAdmin)
 
 class CategoryAdmin(admin.ModelAdmin):
     list_display = ('name', 'description', 'parent', 'origin')
-    search_fields = ('name', 'description', 'parent', 'origin')
+    search_fields = ('name', 'description', 'parent__name', 'origin')
 
 
 admin.site.register(Category, CategoryAdmin)
+
+
+class StorageLocationAdmin(admin.ModelAdmin):
+    list_display = ('name', 'description', 'category', 'parent', 'owner')
+    search_fields = ('name', 'description', 'category__name', 'parent__name', 'owner__username')
+    list_filter = ('category', 'owner')
+
+
+admin.site.register(StorageLocation, StorageLocationAdmin)
+
+
+class WorkflowInstanceAdmin(admin.ModelAdmin):
+    list_display = ('name', 'state', 'owner', 'created_at', 'updated_at')
+    search_fields = ('name', 'owner__username')
+    list_filter = ('state', 'created_at', 'owner')
+    readonly_fields = ('created_at', 'updated_at')
+
+
+admin.site.register(WorkflowInstance, WorkflowInstanceAdmin)

backend/toolshed/api/inventory.py

@@ -1,14 +1,14 @@
 from django.db import transaction
 from django.urls import path
-from rest_framework import routers, viewsets
-from rest_framework.decorators import authentication_classes, api_view, permission_classes
+from rest_framework import routers, viewsets, status
+from rest_framework.decorators import authentication_classes, api_view, permission_classes, action
 from rest_framework.permissions import IsAuthenticated
 from rest_framework.response import Response
 
 from authentication.models import ToolshedUser, KnownIdentity
 from authentication.signature_auth import SignatureAuthentication
-from toolshed.models import InventoryItem, StorageLocation
-from toolshed.serializers import InventoryItemSerializer, StorageLocationSerializer
+from toolshed.models import InventoryItem, StorageLocation, WorkflowInstance
+from toolshed.serializers import InventoryItemSerializer, StorageLocationSerializer, WorkflowInstanceSerializer
 
 router = routers.SimpleRouter()
 
@@ -22,7 +22,8 @@ def inventory_items(identity):
     except ToolshedUser.DoesNotExist:
         pass
     for friend in identity.friends.all():
-        if friend_user := friend.user.get():
+        friend_user = friend.user.first()
+        if friend_user:
             for item in friend_user.inventory_items.all():
                 if item.availability_policy != 'private':
                     yield item
@@ -52,13 +53,25 @@ class InventoryItemViewSet(viewsets.ModelViewSet):
             instance.delete()
 
 
+def matches_query(item, query):
+    query = query.lower()
+    if query in item.name.lower():
+        return True
+    if item.description and query in item.description.lower():
+        return True
+    if any(query in tag.name.lower() for tag in item.tags.all()):
+        return True
+    return False
+
+
 @api_view(['GET'])
 @authentication_classes([SignatureAuthentication])
 @permission_classes([IsAuthenticated])
 def search_inventory_items(request):
     query = request.query_params.get('query')
     if query:
-        return Response(InventoryItemSerializer(inventory_items(request.user), many=True).data)
+        matching_items = [item for item in inventory_items(request.user) if matches_query(item, query)]
+        return Response(InventoryItemSerializer(matching_items, many=True).data)
     return Response({'error': 'No query provided.'}, status=400)
 
 
@@ -72,9 +85,47 @@ class StorageLocationViewSet(viewsets.ModelViewSet):
             return StorageLocation.objects.filter(owner=self.request.user.user.get())
         return StorageLocation.objects.none()
 
+    def perform_create(self, serializer):
+        with transaction.atomic():
+            serializer.save(owner=self.request.user.user.get())
+
+    def perform_update(self, serializer):
+        with transaction.atomic():
+            if serializer.instance.owner == self.request.user.user.get():
+                serializer.save()
+
+    def perform_destroy(self, instance):
+        if instance.owner == self.request.user.user.get():
+            instance.delete()
+
+
+class WorkflowInstanceViewSet(viewsets.ModelViewSet):
+    serializer_class = WorkflowInstanceSerializer
+    authentication_classes = [SignatureAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        if type(self.request.user) == KnownIdentity and self.request.user.user.exists():
+            return WorkflowInstance.objects.filter(owner=self.request.user.user.get())
+        return WorkflowInstance.objects.none()
+
+    def perform_create(self, serializer):
+        with transaction.atomic():
+            serializer.save(owner=self.request.user.user.get())
+
+    def perform_update(self, serializer):
+        with transaction.atomic():
+            if serializer.instance.owner == self.request.user.user.get():
+                serializer.save()
+
+    def perform_destroy(self, instance):
+        if instance.owner == self.request.user.user.get():
+            instance.delete()
+
 
 router.register(r'inventory_items', InventoryItemViewSet, basename='inventory_items')
 router.register(r'storage_locations', StorageLocationViewSet, basename='storage_locations')
+router.register(r'workflows', WorkflowInstanceViewSet, basename='workflows')
 
 urlpatterns = router.urls + [
     path('search/', search_inventory_items, name='search_inventory_items'),

backend/toolshed/api/offlinedata.py

@@ -0,0 +1,253 @@
+from django.http import HttpResponse
+from django.urls import path
+from rest_framework.decorators import api_view, permission_classes, authentication_classes
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+
+from authentication.signature_auth import SignatureAuthentication
+from toolshed.offlinedata import (
+    inventory_rows, friend_rows, location_rows, inventory_files, rows_to_csv,
+    import_locations, import_friends, import_inventory,
+    profile_data, profile_picture_files, settings_data, import_profile, import_settings,
+    delete_user_data, delete_user_account,
+)
+
+
+def local_user_or_none(identity):
+    """Resolve the local ToolshedUser associated with an authenticated KnownIdentity, if any.
+
+    Returns None if the identity belongs to an external/remote user with no local account.
+    """
+    if identity is None:
+        return None
+    return identity.user.first()
+
+
+def user_data(user):
+    import io
+    import json
+    import zipfile
+
+    zip_buffer = io.BytesIO()
+
+    with zipfile.ZipFile(zip_buffer, "a", zipfile.ZIP_DEFLATED, False) as zip_file:
+        zip_file.writestr('profile.json', json.dumps(profile_data(user)))
+        zip_file.writestr('settings.json', json.dumps(settings_data(user)))
+
+        inventory_csv = b''.join(rows_to_csv(inventory_rows(user)))
+        zip_file.writestr('inventory.csv', inventory_csv)
+
+        friends_csv = b''.join(rows_to_csv(friend_rows(user)))
+        zip_file.writestr('friends.csv', friends_csv)
+
+        locations_csv = b''.join(rows_to_csv(location_rows(user)))
+        zip_file.writestr('locations.csv', locations_csv)
+
+        written_files = set()
+        for arcname, data in profile_picture_files(user):
+            zip_file.writestr(arcname, data)
+            written_files.add(arcname)
+
+        for arcname, data in inventory_files(user):
+            if arcname in written_files:
+                continue
+            zip_file.writestr(arcname, data)
+            written_files.add(arcname)
+
+    return zip_buffer.getvalue()
+
+
+def parse_user_data(data):
+    import io
+    import zipfile
+
+    with zipfile.ZipFile(io.BytesIO(data), "r") as zip_file:
+        for file_name in zip_file.namelist():
+            yield file_name, zip_file.read(file_name)
+
+
+def import_files(zip_file):
+    """Fault-tolerant extraction of the 'files/' subfolder into File objects.
+
+    Returns a dict mapping the zip arcname to the created/existing File instance. Entries that
+    fail to read or save are silently skipped so a single corrupt attachment doesn't abort the import.
+    """
+    from hashlib import sha256
+    import mimetypes
+
+    from django.core.files.base import ContentFile
+    from django.db import transaction
+    from files.models import File
+
+    result = {}
+    for name in zip_file.namelist():
+        if not name.startswith('files/') or name == 'files/':
+            continue
+        try:
+            with transaction.atomic():
+                data = zip_file.read(name)
+                content_hash = sha256(data).hexdigest()
+                mime_type, _ = mimetypes.guess_type(name)
+                file_obj = File.objects.filter(hash=content_hash).first()
+                if file_obj is None:
+                    file_obj = File.objects.create(
+                        file=ContentFile(data, content_hash),
+                        mime_type=mime_type or 'application/octet-stream',
+                        hash=content_hash,
+                    )
+                result[name] = file_obj
+        except Exception as error:
+            print(f'Skipping file "{name}" during import: {error}')
+    return result
+
+
+
+def import_user_data(user, data):
+    """Fault-tolerant import of an export zip produced by `user_data()`.
+
+    Any of 'profile.json', 'settings.json', 'inventory.csv', 'friends.csv', 'locations.csv' or
+    the 'files/' subfolder may be missing; whatever is present is imported and everything else
+    is silently skipped.
+
+    Each section is imported inside its own transaction savepoint (`transaction.atomic()`), so a
+    DB-level failure in one section (e.g. a profile.json whose email collides with another
+    account) can't leave the connection in a broken/aborted-transaction state that would
+    otherwise silently take down every subsequent section (including the inventory items and
+    their properties) with an opaque "current transaction is aborted" error.
+    """
+    import io
+    import zipfile
+
+    from django.db import transaction
+
+    summary = {'profile': False, 'settings': 0, 'locations': 0, 'friends': 0, 'inventory_items': 0, 'files': 0,
+               'errors': []}
+
+    with zipfile.ZipFile(io.BytesIO(data), 'r') as zip_file:
+        names = set(zip_file.namelist())
+
+        available_files = import_files(zip_file)
+        summary['files'] = len(available_files)
+
+        if 'profile.json' in names:
+            try:
+                with transaction.atomic():
+                    summary['profile'] = import_profile(user, zip_file.read('profile.json'), available_files)
+            except Exception as error:
+                summary['errors'].append(f'Could not import profile.json: {error}')
+
+        if 'settings.json' in names:
+            try:
+                with transaction.atomic():
+                    summary['settings'] = import_settings(user, zip_file.read('settings.json'))
+            except Exception as error:
+                summary['errors'].append(f'Could not import settings.json: {error}')
+
+        if 'locations.csv' in names:
+            try:
+                with transaction.atomic():
+                    summary['locations'] = import_locations(user, zip_file.read('locations.csv'))
+            except Exception as error:
+                summary['errors'].append(f'Could not import locations.csv: {error}')
+
+        if 'friends.csv' in names:
+            try:
+                with transaction.atomic():
+                    summary['friends'] = import_friends(user, zip_file.read('friends.csv'))
+            except Exception as error:
+                summary['errors'].append(f'Could not import friends.csv: {error}')
+
+        if 'inventory.csv' in names:
+            try:
+                with transaction.atomic():
+                    summary['inventory_items'], inventory_errors = import_inventory(
+                        user, zip_file.read('inventory.csv'), available_files)
+                summary['errors'].extend(inventory_errors)
+            except Exception as error:
+                summary['errors'].append(f'Could not import inventory.csv: {error}')
+
+    return summary
+
+
+
+def _extract_zip_bytes(zip_payload):
+    """Normalize the incoming 'zip' request payload (uploaded file, base64 string, or raw bytes)."""
+    import base64
+
+    if hasattr(zip_payload, 'read'):
+        return zip_payload.read()
+    if isinstance(zip_payload, str):
+        try:
+            return base64.b64decode(zip_payload, validate=True)
+        except Exception:
+            return zip_payload.encode('utf-8')
+    return zip_payload
+
+
+@api_view(['POST'])
+@permission_classes([IsAuthenticated])
+@authentication_classes([SignatureAuthentication])
+def import_data(request, format=None):
+    local_user = local_user_or_none(request.user)
+    if local_user is None:
+        return Response({'detail': 'This endpoint is only available to local users'}, status=403)
+    zip_payload = request.data.get('zip')
+    if not zip_payload:
+        return Response(status=400)
+    try:
+        zip_bytes = _extract_zip_bytes(zip_payload)
+        summary = import_user_data(local_user, zip_bytes)
+    except Exception as error:
+        return Response({'detail': f'Could not read zip file: {error}'}, status=400)
+    return Response(summary, status=200)
+
+
+@api_view(['GET'])
+@permission_classes([IsAuthenticated])
+@authentication_classes([SignatureAuthentication])
+def export_data(request, format=None):
+    local_user = local_user_or_none(request.user)
+    if local_user is None:
+        return Response({'detail': 'This endpoint is only available to local users'}, status=403)
+    return HttpResponse(user_data(local_user), content_type='application/zip', status=200)
+
+
+@api_view(['DELETE'])
+@permission_classes([IsAuthenticated])
+@authentication_classes([SignatureAuthentication])
+def delete_data(request, format=None):
+    """Wipe all of the local user's data (everything included in the export), but keep the account.
+
+    This is *not* account deletion/closure - the user stays logged in and can keep using the
+    account (with all their data reset to a blank slate) afterwards.
+    """
+    local_user = local_user_or_none(request.user)
+    if local_user is None:
+        return Response({'detail': 'This endpoint is only available to local users'}, status=403)
+    summary = delete_user_data(local_user)
+    return Response(summary, status=200)
+
+
+@api_view(['DELETE'])
+@permission_classes([IsAuthenticated])
+@authentication_classes([SignatureAuthentication])
+def delete_account(request, format=None):
+    """Permanently close the local user's account, after wiping all of its data.
+
+    Unlike `delete_data()`, this also removes the account itself - the user can no longer log
+    in afterwards. Their public identity is kept so remote friends/history referencing it stay
+    intact, but the local ToolshedUser row is gone.
+    """
+    local_user = local_user_or_none(request.user)
+    if local_user is None:
+        return Response({'detail': 'This endpoint is only available to local users'}, status=403)
+    summary = delete_user_account(local_user)
+    return Response(summary, status=200)
+
+
+urlpatterns = [
+    path('export/', export_data, name='export_data'),
+    path('import/', import_data, name='import_data'),
+    path('account_data/', delete_data, name='delete_data'),
+    path('account/', delete_account, name='delete_account'),
+]

backend/toolshed/migrations/0007_workflowinstance.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.2.2 on 2025-09-26 10:20
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('toolshed', '0006_alter_tag_options_alter_category_name_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='WorkflowInstance',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255)),
+                ('state', models.CharField(max_length=255)),
+                ('payload', models.JSONField(blank=True, default=dict)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('owner', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='workflows', to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

backend/toolshed/migrations/0008_alter_inventoryitem_storage_location.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.2 on 2026-07-23 02:02
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('toolshed', '0007_workflowinstance'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='inventoryitem',
+            name='storage_location',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='inventory_items', to='toolshed.storagelocation'),
+        ),
+    ]

backend/toolshed/migrations/0009_alter_workflowinstance_payload.py

@@ -0,0 +1,21 @@
+# Generated manually: WorkflowInstance.payload changes from a native JSONField
+# to a plain opaque TextField. The frontend now serializes/deserializes the
+# JSON itself; the backend just stores whatever string it receives.
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('toolshed', '0008_alter_inventoryitem_storage_location'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='workflowinstance',
+            name='payload',
+            field=models.TextField(blank=True, default=''),
+        ),
+    ]
+

backend/toolshed/models.py

@@ -1,5 +1,5 @@
 from django.db import models
-from django.core.validators import MinValueValidator
+from django.core.validators import MinValueValidator, MaxValueValidator
 from django_softdelete.models import SoftDeleteModel
 from rest_framework.exceptions import ValidationError
 
@@ -26,6 +26,10 @@ class Category(SoftDeleteModel):
         parent = str(self.parent) + "/" if self.parent else ""
         return parent + self.name
 
+    def get_handle(self):
+        """Return a fully qualified handle like 'git:base#category:tools'"""
+        return f"{self.origin}#category:{self.name}"
+
 
 class Property(models.Model):
     name = models.CharField(max_length=255)
@@ -50,6 +54,10 @@ class Property(models.Model):
     def __str__(self):
         return self.name
 
+    def get_handle(self):
+        """Return a fully qualified handle like 'git:base#property:length'"""
+        return f"{self.origin}#property:{self.name}"
+
 
 class Tag(models.Model):
     name = models.CharField(max_length=255)
@@ -69,6 +77,10 @@ class Tag(models.Model):
     def __str__(self):
         return self.name
 
+    def get_handle(self):
+        """Return a fully qualified handle like 'git:tools#tag:drill'"""
+        return f"{self.origin}#tag:{self.name}"
+
 
 class InventoryItem(SoftDeleteModel):
     AVAILABILITY_POLICY_CHOICES = (
@@ -90,7 +102,7 @@ class InventoryItem(SoftDeleteModel):
     tags = models.ManyToManyField(Tag, through='ItemTag', related_name='inventory_items')
     properties = models.ManyToManyField(Property, through='ItemProperty')
     files = models.ManyToManyField(File, related_name='connected_items')
-    storage_location = models.ForeignKey('StorageLocation', on_delete=models.CASCADE, null=True, blank=True,
+    storage_location = models.ForeignKey('StorageLocation', on_delete=models.SET_NULL, null=True, blank=True,
                                          related_name='inventory_items')
 
     def clean(self):
@@ -120,3 +132,17 @@ class StorageLocation(models.Model):
     def __str__(self):
         parent = str(self.parent) + "/" if self.parent else ""
         return parent + self.name
+
+
+class WorkflowInstance(models.Model):
+    name = models.CharField(max_length=255)
+    state = models.CharField(max_length=255)
+    payload = models.TextField(default='', blank=True) # an opaque, frontend-serialized JSON string on the backend.
+    owner = models.ForeignKey(ToolshedUser, on_delete=models.CASCADE, related_name='workflows')
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    def __str__(self):
+        return f"{self.name} ({self.state})"
+
+

backend/toolshed/offlinedata.py

@@ -0,0 +1,670 @@
+"""Data helpers for building/importing a user's offline export.
+
+These functions deal with the toolshed models and CSV row shapes only - they know nothing
+about the zip container format or how the request is authenticated. See toolshed/api/offlinedata.py
+for the zip-building/parsing and the API views themselves.
+"""
+
+
+def inventory_rows(user):
+    """Generator that yields the given user's inventory items as flattened dicts, one per row."""
+    import mimetypes
+
+    from toolshed.models import InventoryItem
+
+    items = (InventoryItem.objects
+             .filter(owner=user)
+             .select_related('category', 'storage_location')
+             .prefetch_related('tags', 'itemproperty_set__property', 'files'))
+
+    for item in items:
+        file_paths = []
+        for f in item.files.all():
+            extension = mimetypes.guess_extension(f.mime_type) or ''
+            file_paths.append(f'files/{f.hash}{extension}')
+
+        yield {
+            'id': item.id,
+            'name': item.name or '',
+            'description': item.description or '',
+            'category': item.category.get_handle() if item.category else '',
+            'availability_policy': item.availability_policy,
+            'owned_quantity': item.owned_quantity,
+            'storage_location': str(item.storage_location) if item.storage_location else '',
+            'tags': ', '.join(tag.get_handle() for tag in item.tags.all()),
+            'properties': _encode_properties_cell(item.itemproperty_set.all()),
+            'files': ', '.join(file_paths),
+            'created_at': item.created_at.isoformat() if item.created_at else '',
+        }
+
+
+def friend_rows(user):
+    """Generator that yields the given user's friends (known identities) as flattened dicts, one per row."""
+    friends = user.friends.all()
+
+    for friend in friends:
+        yield {
+            'username': friend.username,
+            'domain': friend.domain,
+            'handle': f'{friend.username}@{friend.domain}',
+            'public_key': friend.public_key,
+        }
+
+
+def location_path(location):
+    """Recursively build the '/'-joined path of a StorageLocation, following its parent chain."""
+    if location.parent:
+        return location_path(location.parent) + '/' + location.name
+    return location.name
+
+
+def location_rows(user):
+    """Generator that yields the given user's storage locations as flattened dicts, one per row."""
+    from toolshed.models import StorageLocation
+
+    locations = StorageLocation.objects.filter(owner=user).select_related('category', 'parent')
+
+    for location in locations:
+        yield {
+            'id': location.id,
+            'name': location.name,
+            'description': location.description or '',
+            'category': str(location.category) if location.category else '',
+            'parent': str(location.parent) if location.parent else '',
+            'path': location_path(location),
+        }
+
+
+def inventory_files(user):
+    """Generator that yields (arcname, data) for each unique file attached to the user's inventory items.
+
+    Files are deduplicated by hash and placed under a 'files/' subfolder, keeping their original
+    extension (guessed from mime_type) so attachments and images remain viewable once extracted.
+    """
+    import mimetypes
+
+    from toolshed.models import InventoryItem
+
+    seen_hashes = set()
+    items = InventoryItem.objects.filter(owner=user).prefetch_related('files')
+
+    for item in items:
+        for file in item.files.all():
+            if file.hash in seen_hashes:
+                continue
+            seen_hashes.add(file.hash)
+
+            extension = mimetypes.guess_extension(file.mime_type) or ''
+            arcname = f'files/{file.hash}{extension}'
+
+            file.file.open('rb')
+            try:
+                data = file.file.read()
+            finally:
+                file.file.close()
+
+            yield arcname, data
+
+
+def profile_data(user):
+    """Return the given user's profile as a dict, matching profile.json in the export zip."""
+    import mimetypes
+
+    data = {
+        'username': user.username,
+        'domain': user.domain,
+        'email': user.email,
+        'first_name': user.first_name or '',
+        'last_name': user.last_name or '',
+        'profile_picture': None,
+    }
+    if user.profile_picture:
+        extension = mimetypes.guess_extension(user.profile_picture.mime_type) or ''
+        data['profile_picture'] = f'files/{user.profile_picture.hash}{extension}'
+    return data
+
+
+def profile_picture_files(user):
+    """Generator that yields (arcname, data) for the user's profile picture, if one is set.
+
+    Kept separate from `inventory_files()` so the profile picture is included in the export
+    even for users with no inventory items or whose picture isn't attached to any item.
+    """
+    import mimetypes
+
+    if not user.profile_picture:
+        return
+
+    extension = mimetypes.guess_extension(user.profile_picture.mime_type) or ''
+    arcname = f'files/{user.profile_picture.hash}{extension}'
+
+    user.profile_picture.file.open('rb')
+    try:
+        data = user.profile_picture.file.read()
+    finally:
+        user.profile_picture.file.close()
+
+    yield arcname, data
+
+
+def settings_data(user):
+    """Return the given user's account-level preferences as a {key: value} dict for settings.json.
+
+    Only account preferences (AccountPreference) are exported; device-level preferences stay
+    in the browser's local storage since they describe the device, not the account.
+    """
+    return {pref.key: pref.value for pref in user.preferences.all()}
+
+
+def import_profile(user, data, available_files):
+    """Fault-tolerant import of profile.json, updating the user's editable profile fields.
+
+    Only 'first_name', 'last_name', 'email' and 'profile_picture' (a 'files/...' path present in
+    `available_files`) are applied; 'username' and 'domain' are ignored since they identify the
+    account itself and can't be changed by an import.
+    """
+    import json
+
+    try:
+        profile = json.loads(data.decode('utf-8'))
+        if not isinstance(profile, dict):
+            return False
+
+        if 'first_name' in profile:
+            user.first_name = profile.get('first_name') or ''
+        if 'last_name' in profile:
+            user.last_name = profile.get('last_name') or ''
+        if profile.get('email'):
+            user.email = profile['email']
+
+        picture_path = profile.get('profile_picture')
+        if picture_path and picture_path in available_files:
+            user.profile_picture = available_files[picture_path]
+
+        user.save()
+        return True
+    except Exception as error:
+        print(f'Skipping profile.json: {error}')
+        return False
+
+
+def import_settings(user, data):
+    """Fault-tolerant import of settings.json into the user's account-level preferences.
+
+    Each top-level key/value pair is upserted as an AccountPreference; unreadable data or a
+    non-object payload is skipped rather than aborting the whole import.
+    """
+    import json
+
+    from authentication.models import AccountPreference
+
+    try:
+        settings = json.loads(data.decode('utf-8'))
+        if not isinstance(settings, dict):
+            return 0
+
+        imported = 0
+        for key, value in settings.items():
+            try:
+                AccountPreference.objects.update_or_create(user=user, key=key, defaults={'value': value})
+                imported += 1
+            except Exception as error:
+                print(f'Skipping setting "{key}": {error}')
+        return imported
+    except Exception as error:
+        print(f'Skipping settings.json: {error}')
+        return 0
+
+
+def delete_user_data(user):
+    """Permanently delete everything that `user_data()` exports, keeping the account itself intact.
+
+    This removes the user's inventory items (hard delete, bypassing soft-delete), storage
+    locations, account preferences, the friends relation on their public identity, the profile
+    picture, and any File blobs (profile picture / inventory attachments) that would otherwise be
+    orphaned - i.e. not referenced by any other inventory item or user. Files still referenced
+    elsewhere (they're deduplicated by content hash) are left untouched. The ToolshedUser account
+    (and its underlying KnownIdentity) is *not* deleted - this only wipes the account's data, it
+    doesn't close the account. See `delete_account()` in toolshed/api/offlinedata.py for that.
+
+    Returns a summary dict describing what was removed.
+    """
+    from django.db import transaction
+
+    from toolshed.models import InventoryItem, StorageLocation
+
+    summary = {'inventory_items': 0, 'locations': 0, 'settings': 0, 'friends': 0, 'files': 0}
+
+    with transaction.atomic():
+        candidate_file_ids = set(
+            InventoryItem.global_objects.filter(owner=user).values_list('files__id', flat=True))
+        candidate_file_ids.discard(None)
+        if user.profile_picture_id:
+            candidate_file_ids.add(user.profile_picture_id)
+
+        for item in InventoryItem.global_objects.filter(owner=user):
+            item.hard_delete()
+            summary['inventory_items'] += 1
+
+        summary['locations'], _ = StorageLocation.objects.filter(owner=user).delete()
+        summary['settings'], _ = user.preferences.all().delete()
+
+        summary['friends'] = user.public_identity.friends.count()
+        user.public_identity.friends.clear()
+
+        user.profile_picture = None
+        user.save(update_fields=['profile_picture'])
+
+        summary['files'] = _delete_orphaned_files(candidate_file_ids)
+
+
+    return summary
+
+
+def delete_user_account(user):
+    """Permanently delete the local user's account, after wiping all of its data.
+
+    This first calls `delete_user_data()` to remove everything covered by the data export
+    (inventory, locations, settings, friends relation, profile picture and orphaned files),
+    then deletes the ToolshedUser row itself. The underlying KnownIdentity is kept so remote
+    friends/history relating to this identity remain intact - only the local account is closed.
+
+    Returns a summary dict describing what was removed, with `account` set to True.
+    """
+    from django.db import transaction
+
+    with transaction.atomic():
+        summary = delete_user_data(user)
+        user.delete()
+        summary['account'] = True
+
+    return summary
+
+
+def _delete_orphaned_files(file_ids):
+    """Delete File rows (and their underlying blobs) in `file_ids` that are no longer referenced.
+
+    A File is considered orphaned once no InventoryItem and no ToolshedUser (profile picture)
+    references it anymore. Returns the number of files deleted.
+    """
+    from files.models import File
+
+    deleted = 0
+    for file_obj in File.objects.filter(id__in=file_ids):
+        if file_obj.connected_items.exists() or file_obj.profile_picture_users.exists():
+            continue
+        file_obj.file.delete(save=False)
+        file_obj.delete()
+        deleted += 1
+    return deleted
+
+
+def rows_to_csv(rows, fieldnames=None, encoding='utf-8'):
+    """Generator that consumes an iterable of dicts and yields encoded CSV data chunk by chunk."""
+    import csv
+
+    class _Echo:
+        """A file-like object whose write() just returns what was passed, for streaming csv.writer output."""
+
+        def write(self, value):
+            return value
+
+    rows = iter(rows)
+    try:
+        first_row = next(rows)
+    except StopIteration:
+        return
+
+    if fieldnames is None:
+        fieldnames = list(first_row.keys())
+
+    writer = csv.DictWriter(_Echo(), fieldnames=fieldnames)
+    yield writer.writeheader().encode(encoding)
+    yield writer.writerow(first_row).encode(encoding)
+    for row in rows:
+        yield writer.writerow(row).encode(encoding)
+
+
+def _read_csv_rows(data, encoding='utf-8'):
+    """Decode CSV bytes and yield rows as dicts keyed by the header labels (not column offsets)."""
+    import csv
+    import io
+
+    reader = csv.DictReader(io.StringIO(data.decode(encoding)))
+    for row in reader:
+        yield row
+
+
+def _field_is_optional(model, field_name):
+    """Return True if a field may be omitted: it's a relation, has a default, or allows null/blank."""
+    try:
+        field = model._meta.get_field(field_name)
+    except Exception:
+        return True
+    if getattr(field, 'many_to_many', False) or getattr(field, 'one_to_many', False):
+        return True
+    return bool(getattr(field, 'null', False) or getattr(field, 'blank', False) or field.has_default())
+
+
+def get_or_create_category(path):
+    """Resolve or create a Category from a '/'-separated path such as 'Electronics/Cables'."""
+    from toolshed.models import Category
+
+    parent = None
+    category = None
+    for part in (p for p in path.split('/') if p):
+        category, _ = Category.objects.get_or_create(name=part, parent=parent, defaults={'origin': 'import'})
+        parent = category
+    return category
+
+
+def import_locations(user, data):
+    """Fault-tolerant import of locations.csv into StorageLocations owned by `user`.
+
+    Rows are read by header label. Rows missing the required 'name' column are skipped.
+    Optional columns ('description', 'category') are simply omitted if absent. Locations are
+    processed in path-depth order so a child's parent already exists by the time it's needed.
+    Each row runs in its own transaction savepoint so a DB-level failure on one row (e.g. a
+    constraint violation) can't poison the surrounding transaction and silently break every
+    subsequent row.
+    """
+    from django.db import transaction
+
+    from toolshed.models import StorageLocation
+
+    rows = list(_read_csv_rows(data))
+    rows.sort(key=lambda row: (row.get('path') or row.get('name') or '').count('/'))
+
+    resolved_by_path = {}
+    imported = 0
+
+    for row in rows:
+        try:
+            with transaction.atomic():
+                name = (row.get('name') or '').strip()
+                if not name and not _field_is_optional(StorageLocation, 'name'):
+                    continue  # required column missing, skip this row
+
+                path = (row.get('path') or name).strip()
+                parent = None
+                if '/' in path:
+                    parent = resolved_by_path.get(path.rsplit('/', 1)[0])
+
+                category = None
+                category_path = row.get('category')
+                if category_path:
+                    category = get_or_create_category(category_path)
+
+                location, _ = StorageLocation.objects.update_or_create(
+                    owner=user, name=name, parent=parent,
+                    defaults={
+                        'description': row.get('description', '') or '',
+                        'category': category,
+                    },
+                )
+                resolved_by_path[path] = location
+                imported += 1
+        except Exception as error:
+            print(f'Skipping location row {row}: {error}')
+
+    return imported
+
+
+def import_friends(user, data):
+    """Fault-tolerant import of friends.csv, adding valid entries to the user's known friends."""
+    from django.db import transaction
+
+    from authentication.models import KnownIdentity
+
+    imported = 0
+    for row in _read_csv_rows(data):
+        try:
+            with transaction.atomic():
+                username = row.get('username')
+                domain = row.get('domain')
+                handle = row.get('handle')
+                if (not username or not domain) and handle and '@' in handle:
+                    username, domain = handle.split('@', 1)
+
+                public_key = row.get('public_key')
+                if not username or not domain or not public_key:
+                    continue  # required fields missing, skip this row
+
+                identity, _ = KnownIdentity.objects.get_or_create(
+                    username=username, domain=domain,
+                    defaults={'public_key': public_key},
+                )
+                user.public_identity.friends.add(identity)
+                imported += 1
+        except Exception as error:
+            print(f'Skipping friend row {row}: {error}')
+
+    return imported
+
+
+class _HandleNotFound(Exception):
+    """Raised when a fully qualified handle (e.g. 'git:base#tag:drill') can't be resolved.
+
+    This intentionally aborts the whole row (rather than falling back to creating a new
+    entity), since a handle references a *specific* entity from a *specific* origin - silently
+    creating a new local entity named after the raw handle string would be incorrect.
+    """
+
+
+def _resolve_handle(value, entity_type, model):
+    """Resolve a fully qualified handle (e.g. 'git:base#tag:drill') to an *existing* model instance.
+
+    Never creates anything: a handle references a specific entity from a specific origin, so
+    silently creating a new local entity named after the raw handle string would be incorrect.
+    Raises `_HandleNotFound` if the handle's entity type doesn't match or no such object exists,
+    so the caller can skip the row and report a helpful error instead.
+    """
+    origin, rest = value.split('#', 1)
+    if ':' in rest:
+        found_type, name = rest.split(':', 1)
+        if found_type != entity_type:
+            raise _HandleNotFound(
+                f"expected a {entity_type} handle but got '{value}' (type '{found_type}')")
+    else:
+        name = rest
+    try:
+        return model.objects.get(origin=origin, name=name)
+    except model.DoesNotExist:
+        raise _HandleNotFound(f"{entity_type} '{value}' does not exist, skipping item")
+
+
+def _quote_value_if_needed(value):
+    """Wrap `value` in double quotes (CSV-style, doubling any embedded quotes) if it contains a
+    comma or a quote character, so it survives sitting inside a comma-separated "handle=value"
+    list unambiguously.
+    """
+    if any(ch in value for ch in ',"'):
+        return '"' + value.replace('"', '""') + '"'
+    return value
+
+
+def _encode_properties_cell(item_properties):
+    """Encode an item's properties as a comma-separated "handle=value" list for the 'properties'
+    CSV cell, quoting a value (CSV-style) when it contains a comma or a quote character so it
+    still round-trips correctly. See `_parse_properties_cell()` for the reader side.
+    """
+    entries = [
+        f"{ip.property.get_handle()}={_quote_value_if_needed(ip.value or '')}"
+        for ip in item_properties
+    ]
+    return ', '.join(entries)
+
+
+def _split_quoted_comma_list(raw_value):
+    """Split a comma-separated list into entries, honouring double-quoted substrings (CSV-style,
+    wherever they appear in an entry) so a quoted value's own commas aren't mistaken for
+    separators. Doubled quotes ("") inside a quoted substring are unescaped to a single literal
+    quote, and the surrounding quotes themselves are stripped from the result.
+
+    Only the single space after each ", " separator (as written by `_encode_properties_cell()`)
+    is dropped - unlike a blanket `.strip()`, this preserves any leading/trailing whitespace that
+    is genuinely part of a (quoted) value.
+    """
+    entries = []
+    current = []
+    in_quotes = False
+    i = 0
+    length = len(raw_value)
+
+    while i < length:
+        char = raw_value[i]
+        if char == '"':
+            if in_quotes and i + 1 < length and raw_value[i + 1] == '"':
+                current.append('"')
+                i += 2
+                continue
+            in_quotes = not in_quotes
+            i += 1
+            continue
+        if char == ',' and not in_quotes:
+            entries.append(''.join(current))
+            current = []
+            i += 1
+            if i < length and raw_value[i] == ' ':
+                i += 1  # skip the single space of the ", " separator
+            continue
+        current.append(char)
+        i += 1
+
+    entries.append(''.join(current))
+    return [entry for entry in entries if entry]
+
+
+def _parse_properties_cell(raw_value, resolve_property):
+    """Parse the 'properties' CSV cell into a list of (Property, value) tuples.
+
+    The cell is a comma-separated list of "handle=value" entries; a value containing a comma or
+    a quote character is double-quoted (CSV-style) by `_encode_properties_cell()` so it survives
+    the round trip intact.
+    """
+    raw_value = (raw_value or '').strip()
+    if not raw_value:
+        return []
+
+    properties = []
+    for prop_entry in _split_quoted_comma_list(raw_value):
+        if '=' not in prop_entry:
+            continue
+        prop_name, value = prop_entry.split('=', 1)
+        prop = resolve_property(prop_name.strip())
+        if prop:
+            properties.append((prop, value))
+
+    return properties
+
+
+
+def import_inventory(user, data, available_files):
+    """Fault-tolerant import of inventory.csv into InventoryItems owned by `user`.
+
+    `available_files` maps the 'files' column's paths to File instances successfully extracted
+    from the zip; references to missing files are ignored rather than failing the row.
+
+    If a row references a fully qualified tag/property/category handle that doesn't exist
+    locally, the whole item is skipped (rather than creating a bogus local entity named after
+    the raw handle) and a helpful message is added to the returned `errors` list. Each row runs
+    in its own transaction savepoint so a DB-level failure on one row can't poison the
+    surrounding transaction and silently break every subsequent row.
+    """
+    from django.db import transaction
+
+    from toolshed.models import Category, InventoryItem, ItemProperty, StorageLocation, Tag, Property
+
+    def resolve_category_from_csv(value):
+        """Resolve a category from CSV - supports both old format and fully qualified handles"""
+        if not value:
+            return None
+        if '#' in value:
+            return _resolve_handle(value, 'category', Category)
+        # Fallback to old path-based lookup
+        return get_or_create_category(value)
+
+    def resolve_tag_from_csv(value):
+        """Resolve a tag from CSV - supports both old format and fully qualified handles"""
+        if not value:
+            return None
+        if '#' in value:
+            return _resolve_handle(value, 'tag', Tag)
+        # Fallback to old name-only lookup or create
+        return Tag.objects.get_or_create(name=value, category=None, defaults={'origin': 'import'})[0]
+
+    def resolve_property_from_csv(value):
+        """Resolve a property from CSV - supports both old format and fully qualified handles"""
+        if not value:
+            return None
+        if '#' in value:
+            return _resolve_handle(value, 'property', Property)
+        # Fallback to old name-only lookup or create
+        return Property.objects.get_or_create(name=value, category=None, defaults={'origin': 'import'})[0]
+
+    imported = 0
+    errors = []
+    for row in _read_csv_rows(data):
+        name = (row.get('name') or '').strip()
+        try:
+            with transaction.atomic():
+                file_paths = [p.strip() for p in (row.get('files') or '').split(',') if p.strip()]
+                files = [available_files[p] for p in file_paths if p in available_files]
+
+                if not name and not files:
+                    continue  # InventoryItem requires a name or at least one file
+
+                category = resolve_category_from_csv((row.get('category') or '').strip())
+
+                tags = []
+                for tag_name in (row.get('tags') or '').split(','):
+                    tag_name = tag_name.strip()
+                    if tag_name:
+                        tag = resolve_tag_from_csv(tag_name)
+                        if tag:
+                            tags.append(tag)
+
+                properties = _parse_properties_cell(row.get('properties') or '', resolve_property_from_csv)
+
+                storage_location = None
+                location_path_value = row.get('storage_location')
+                if location_path_value:
+                    storage_location = StorageLocation.objects.filter(
+                        owner=user, name=location_path_value.rsplit('/', 1)[-1]).first()
+
+                try:
+                    owned_quantity = int(row.get('owned_quantity') or 1)
+                except (TypeError, ValueError):
+                    owned_quantity = 1
+
+                item = InventoryItem.objects.create(
+                    owner=user,
+                    name=name or None,
+                    description=row.get('description', '') or '',
+                    category=category,
+                    availability_policy=row.get('availability_policy') or 'private',
+                    owned_quantity=owned_quantity,
+                    storage_location=storage_location,
+                )
+
+                for tag in tags:
+                    item.tags.add(tag, through_defaults={})
+
+                for prop, value in properties:
+                    ItemProperty.objects.create(inventory_item=item, property=prop, value=value)
+
+                for file in files:
+                    item.files.add(file)
+
+                imported += 1
+        except _HandleNotFound as error:
+            message = f"Skipping item '{name or 'unnamed'}': {error}"
+            print(message)
+            errors.append(message)
+        except Exception as error:
+            message = f'Skipping inventory row {row}: {error}'
+            print(message)
+            errors.append(message)
+
+    return imported, errors
+

backend/toolshed/serializers.py

@@ -3,7 +3,47 @@ from authentication.models import KnownIdentity, ToolshedUser, FriendRequestInco
 from authentication.serializers import OwnerSerializer
 from files.models import File
 from files.serializers import FileSerializer
-from toolshed.models import Category, Property, ItemProperty, InventoryItem, Tag, StorageLocation
+from toolshed.models import Category, Property, ItemProperty, InventoryItem, Tag, StorageLocation, WorkflowInstance
+
+
+def parse_handle(handle):
+    """Parse a fully qualified handle like 'git:base#property:length' into (origin, entity_type, name)"""
+    if '#' not in handle:
+        # Fallback to old format (just name)
+        return None, None, handle
+    origin, rest = handle.split('#', 1)
+    if ':' not in rest:
+        return origin, None, rest
+    entity_type, name = rest.split(':', 1)
+    return origin, entity_type, name
+
+
+def resolve_category_handle(handle):
+    """Resolve a fully qualified handle to a Category object"""
+    origin, entity_type, name = parse_handle(handle)
+    if origin and entity_type == 'category':
+        return Category.objects.get(origin=origin, name=name)
+    # Fallback to name-only lookup
+    return Category.objects.get(name=handle.split('/')[-1])
+
+
+def resolve_property_handle(handle):
+    """Resolve a fully qualified handle to a Property object"""
+    origin, entity_type, name = parse_handle(handle)
+    if origin and entity_type == 'property':
+        return Property.objects.get(origin=origin, name=name)
+    # Fallback to name-only lookup
+    return Property.objects.get(name=handle)
+
+
+def resolve_tag_handle(handle):
+    """Resolve a fully qualified handle to a Tag object"""
+    origin, entity_type, name = parse_handle(handle)
+    if origin and entity_type == 'tag':
+        return Tag.objects.get(origin=origin, name=name)
+    # Fallback to name-only lookup
+    return Tag.objects.get(name=handle)
+
 
 
 class FriendSerializer(serializers.ModelSerializer):
@@ -29,33 +69,45 @@ class FriendRequestSerializer(serializers.ModelSerializer):
 
 
 class PropertySerializer(serializers.ModelSerializer):
-    category = serializers.SlugRelatedField(queryset=Category.objects.all(), slug_field='name')
+    category = serializers.SerializerMethodField()
+    handle = serializers.SerializerMethodField()
+
+    def get_category(self, obj):
+        return resolve_category_handle(obj.category.get_handle()) if obj.category else None
+
+    def get_handle(self, obj):
+        return obj.get_handle()
 
     class Meta:
         model = Property
-        fields = ['name', 'description', 'category', 'unit_symbol', 'unit_name', 'unit_name_plural', 'base2_prefix']
+        fields = ['name', 'description', 'category', 'unit_symbol', 'unit_name', 'unit_name_plural', 'base2_prefix', 'handle']
 
 
 class CategorySerializer(serializers.ModelSerializer):
+    handle = serializers.SerializerMethodField()
+
     class Meta:
         model = Category
-        fields = ['name']
+        fields = ['name', 'handle']
+
+    def get_handle(self, obj):
+        return obj.get_handle()
 
     def to_representation(self, instance):
-        return str(instance)
+        return instance.name
 
     def to_internal_value(self, data):
-        return Category.objects.get(name=data.split("/")[-1])
+        return resolve_category_handle(data.split("/")[-1])
 
 
 class StorageLocationSerializer(serializers.ModelSerializer):
     owner = OwnerSerializer(read_only=True)
-    category = CategorySerializer(required=False, allow_null=True)
+    category = serializers.CharField(required=False, allow_null=True, allow_blank=True)
     path = serializers.SerializerMethodField()
 
     class Meta:
         model = StorageLocation
-        fields = ['id', 'name', 'description', 'path', 'category', 'owner']
+        fields = ['id', 'name', 'description', 'path', 'category', 'owner', 'parent']
         read_only_fields = ['path']
 
     @staticmethod
@@ -67,23 +119,28 @@ class StorageLocationSerializer(serializers.ModelSerializer):
 
 class ItemPropertySerializer(serializers.ModelSerializer):
     property = PropertySerializer(read_only=True)
+    handle = serializers.SerializerMethodField()
 
     class Meta:
         model = ItemProperty
-        fields = ['property', 'value']
+        fields = ['property', 'value', 'handle']
+
+    def get_handle(self, obj):
+        return obj.property.get_handle()
 
     def to_representation(self, instance):
         return {'value': instance.value, 'name': instance.property.name}
 
     def to_internal_value(self, data):
-        prop = Property.objects.get(name=data['name'])
+        prop = resolve_property_handle(data.get('name') or data.get('handle'))
         value = data['value']
         return {'property': prop, 'value': value}
 
 
 class InventoryItemSerializer(serializers.ModelSerializer):
     owner = OwnerSerializer(read_only=True)
-    tags = serializers.SlugRelatedField(many=True, required=False, queryset=Tag.objects.all(), slug_field='name')
+    tags = serializers.SerializerMethodField()
+    tags_input = serializers.ListField(child=serializers.CharField(), write_only=True, required=False)
     properties = ItemPropertySerializer(many=True, required=False, source='itemproperty_set')
     category = CategorySerializer(required=False, allow_null=True)
     files = FileSerializer(many=True, read_only=True)
@@ -91,11 +148,16 @@ class InventoryItemSerializer(serializers.ModelSerializer):
     class Meta:
         model = InventoryItem
         fields = ['id', 'name', 'description', 'owner', 'category', 'availability_policy', 'owned_quantity', 'owner',
-                  'tags', 'properties', 'files', 'storage_location']
+                  'tags', 'tags_input', 'properties', 'files', 'storage_location']
+
+    def get_tags(self, obj):
+        return [tag.name for tag in obj.tags.all()]
 
     def to_internal_value(self, data):
         files = data.pop('files', [])
+        tags_input = data.pop('tags_input', data.pop('tags', []))
         ret = super().to_internal_value(data)
+        ret['tags'] = [resolve_tag_handle(tag) for tag in tags_input]
         ret['files'] = files
         return ret
 
@@ -138,3 +200,12 @@ class InventoryItemSerializer(serializers.ModelSerializer):
             ItemProperty.objects.create(inventory_item=item, property=prop['property'], value=prop['value'])
         item.save()
         return item
+
+class WorkflowInstanceSerializer(serializers.ModelSerializer):
+    owner = serializers.StringRelatedField(read_only=True)
+
+    class Meta:
+        model = WorkflowInstance
+        fields = ['id', 'name', 'state', 'payload', 'owner', 'created_at', 'updated_at']
+        read_only_fields = ['owner', 'created_at', 'updated_at']
+

backend/toolshed/tests/fixtures.py

@@ -1,4 +1,5 @@
-from toolshed.models import Category, Tag, Property, InventoryItem, ItemProperty, StorageLocation
+from toolshed.models import Category, Tag, Property, InventoryItem, ItemProperty, StorageLocation, WorkflowInstance
+import json
 
 
 class CategoryTestMixin:
@@ -54,3 +55,33 @@ class LocationTestMixin:
         self.f['loc3'] = StorageLocation.objects.create(name='loc3', owner=self.f['local_user1'], parent=self.f['loc1'])
         self.f['loc4'] = StorageLocation.objects.create(name='loc4', owner=self.f['local_user1'], parent=self.f['loc1'],
                                                         category=self.f['cat1'])
+
+
+class WorkflowTestMixin:
+    def prepare_workflows(self):
+        # `payload` is an opaque, frontend-serialized JSON string on the backend.
+        self.f['workflow1'] = WorkflowInstance.objects.create(
+            name='workflow1',
+            state='initial',
+            payload=json.dumps({}),
+            owner=self.f['local_user1']
+        )
+        self.f['workflow2'] = WorkflowInstance.objects.create(
+            name='workflow1',
+            state='upload',
+            payload=json.dumps({'files': ['ef35c4a9b2d1c4f1a3e6f7d8c9b0a1b2']}),
+            owner=self.f['local_user1']
+        )
+        self.f['workflow3'] = WorkflowInstance.objects.create(
+            name='workflow1',
+            state='describe',
+            payload=json.dumps({'files': ['ef35c4a9b2d1c4f1a3e6f7d8c9b0a1b2', 'a1b2c3d4e5f60718293a4b5c6d7e8f90', 'b1c2d3e4f5a60718293b4c5d6e7f8090'],
+                     'descriptions': ['file 1 description']}),
+            owner=self.f['local_user1']
+        )
+        self.f['workflow_user2'] = WorkflowInstance.objects.create(
+            name='workflow2',
+            state='initial',
+            payload=json.dumps({}),
+            owner=self.f['local_user2']
+        )

backend/toolshed/tests/test_locations.py

@@ -1,6 +1,6 @@
 from authentication.tests import SignatureAuthClient, UserTestMixin, ToolshedTestCase
 from files.tests import FilesTestMixin
-from toolshed.models import InventoryItem, Category
+from toolshed.models import InventoryItem, Category, StorageLocation
 from toolshed.tests import InventoryTestMixin, LocationTestMixin
 
 client = SignatureAuthClient()
@@ -69,3 +69,63 @@ class LocationApiTestCase(UserTestMixin, InventoryTestMixin, LocationTestMixin,
         self.assertEqual(reply.json()[3]['description'], None)
         self.assertEqual(reply.json()[3]['category'], 'cat1')
         self.assertEqual(reply.json()[3]['path'], 'loc1/loc4')
+
+    def test_post_new_location(self):
+        reply = client.post('/api/storage_locations/', self.f['local_user1'], {
+            'name': 'loc5',
+            'description': 'a new location',
+        })
+        self.assertEqual(reply.status_code, 201)
+        self.assertEqual(StorageLocation.objects.count(), 5)
+        location = StorageLocation.objects.get(name='loc5')
+        self.assertEqual(location.description, 'a new location')
+        self.assertEqual(location.owner, self.f['local_user1'])
+        self.assertEqual(location.parent, None)
+        self.assertEqual(reply.json()['path'], 'loc5')
+
+    def test_post_new_nested_location(self):
+        reply = client.post('/api/storage_locations/', self.f['local_user1'], {
+            'name': 'loc5',
+            'parent': self.f['loc3'].id,
+        })
+        self.assertEqual(reply.status_code, 201)
+        location = StorageLocation.objects.get(name='loc5')
+        self.assertEqual(location.parent, self.f['loc3'])
+        self.assertEqual(reply.json()['path'], 'loc1/loc3/loc5')
+
+    def test_patch_location(self):
+        reply = client.patch('/api/storage_locations/' + str(self.f['loc2'].id) + '/', self.f['local_user1'], {
+            'name': 'loc2-renamed',
+            'parent': self.f['loc1'].id,
+        })
+        self.assertEqual(reply.status_code, 200)
+        location = StorageLocation.objects.get(id=self.f['loc2'].id)
+        self.assertEqual(location.name, 'loc2-renamed')
+        self.assertEqual(location.parent, self.f['loc1'])
+        self.assertEqual(reply.json()['path'], 'loc1/loc2-renamed')
+
+    def test_delete_location(self):
+        reply = client.delete('/api/storage_locations/' + str(self.f['loc4'].id) + '/', self.f['local_user1'])
+        self.assertEqual(reply.status_code, 204)
+        self.assertEqual(StorageLocation.objects.count(), 3)
+        self.assertEqual(StorageLocation.objects.filter(id=self.f['loc4'].id).count(), 0)
+
+    def test_delete_location_with_items_sets_null(self):
+        item = InventoryItem.objects.create(
+            owner=self.f['local_user1'], name='located_item', storage_location=self.f['loc3'])
+        reply = client.delete('/api/storage_locations/' + str(self.f['loc3'].id) + '/', self.f['local_user1'])
+        self.assertEqual(reply.status_code, 204)
+        item.refresh_from_db()
+        self.assertIsNone(item.storage_location)
+        self.assertEqual(InventoryItem.objects.filter(id=item.id).count(), 1)
+
+    def test_locations_are_owner_scoped(self):
+        reply = client.get('/api/storage_locations/', self.f['local_user2'])
+        self.assertEqual(reply.status_code, 200)
+        self.assertEqual(len(reply.json()), 0)
+
+    def test_cannot_delete_other_users_location(self):
+        reply = client.delete('/api/storage_locations/' + str(self.f['loc1'].id) + '/', self.f['local_user2'])
+        self.assertEqual(reply.status_code, 404)
+        self.assertEqual(StorageLocation.objects.filter(id=self.f['loc1'].id).count(), 1)
+

backend/toolshed/tests/test_offlinedata.py

@@ -0,0 +1,264 @@
+from django.core.files.base import ContentFile
+from django.test import Client
+
+from authentication.models import AccountPreference, ToolshedUser
+from authentication.tests import UserTestMixin, SignatureAuthClient, ToolshedTestCase
+from files.models import File
+from toolshed.models import InventoryItem, ItemProperty, StorageLocation
+from toolshed.offlinedata import import_inventory, inventory_rows, rows_to_csv
+from toolshed.tests import CategoryTestMixin, LocationTestMixin, PropertyTestMixin, TagTestMixin
+
+anonymous_client = Client()
+client = SignatureAuthClient()
+
+
+class _DeleteTestDataMixin(UserTestMixin, CategoryTestMixin, LocationTestMixin):
+    """Shared fixture setup for the delete-data and delete-account test cases."""
+
+    def setUp(self):
+        super().setUp()
+        self.prepare_users()
+        self.prepare_categories()
+        self.prepare_locations()
+
+        self.f['local_user1'].friends.add(self.f['local_user2'].public_identity)
+
+        self.f['shared_file'] = File.objects.create(
+            file=ContentFile(b'shared', 'shared'), mime_type='text/plain', hash='shared')
+        self.f['orphan_file'] = File.objects.create(
+            file=ContentFile(b'orphan', 'orphan'), mime_type='text/plain', hash='orphan')
+
+        self.f['item1'] = InventoryItem.objects.create(
+            owner=self.f['local_user1'], owned_quantity=1, name='item1', category=self.f['cat1'])
+        self.f['item1'].files.add(self.f['orphan_file'])
+
+        self.f['item_other_user'] = InventoryItem.objects.create(
+            owner=self.f['local_user2'], owned_quantity=1, name='item2', category=self.f['cat1'])
+        self.f['item_other_user'].files.add(self.f['shared_file'])
+
+        self.f['item1'].files.add(self.f['shared_file'])
+
+        AccountPreference.objects.create(user=self.f['local_user1'], key='theme', value='dark')
+
+        self.f['local_user1'].profile_picture = self.f['orphan_file']
+        self.f['local_user1'].save()
+
+
+class DeleteDataTestCase(_DeleteTestDataMixin, ToolshedTestCase):
+
+    def test_delete_data_anonymous(self):
+        response = anonymous_client.delete('/api/account_data/')
+        self.assertEqual(response.status_code, 403)
+
+    def test_delete_data_removes_all_owned_data_but_keeps_account(self):
+        response = client.delete('/api/account_data/', self.f['local_user1'])
+        self.assertEqual(response.status_code, 200)
+
+        summary = response.json()
+        self.assertEqual(summary['inventory_items'], 1)
+        self.assertEqual(summary['locations'], 4)
+        self.assertEqual(summary['settings'], 1)
+        self.assertEqual(summary['friends'], 1)
+
+        # the account itself survives - this wipes data, it doesn't close the account
+        self.f['local_user1'].refresh_from_db()
+        self.assertTrue(ToolshedUser.objects.filter(username='testuser1').exists())
+        self.assertIsNone(self.f['local_user1'].profile_picture)
+
+        self.assertFalse(InventoryItem.global_objects.filter(owner_id=self.f['local_user1'].id).exists())
+        self.assertFalse(StorageLocation.objects.filter(owner_id=self.f['local_user1'].id).exists())
+        self.assertFalse(AccountPreference.objects.filter(user_id=self.f['local_user1'].id).exists())
+        self.assertEqual(self.f['local_user1'].public_identity.friends.count(), 0)
+
+        # orphaned file (only referenced by the deleted user/items) is gone
+        self.assertFalse(File.objects.filter(hash='orphan').exists())
+        # file still referenced by the other user's item survives
+        self.assertTrue(File.objects.filter(hash='shared').exists())
+
+        # the other user's data and identity/friend relation to the deleted identity are untouched
+        self.f['local_user2'].refresh_from_db()
+        self.assertTrue(InventoryItem.objects.filter(owner=self.f['local_user2']).exists())
+
+
+class DeleteAccountTestCase(_DeleteTestDataMixin, ToolshedTestCase):
+
+    def test_delete_account_anonymous(self):
+        response = anonymous_client.delete('/api/account/')
+        self.assertEqual(response.status_code, 403)
+
+    def test_delete_account_removes_data_and_closes_account(self):
+        user1_id = self.f['local_user1'].id
+        identity_id = self.f['local_user1'].public_identity_id
+
+        response = client.delete('/api/account/', self.f['local_user1'])
+        self.assertEqual(response.status_code, 200)
+
+        summary = response.json()
+        self.assertEqual(summary['inventory_items'], 1)
+        self.assertEqual(summary['locations'], 4)
+        self.assertEqual(summary['settings'], 1)
+        self.assertEqual(summary['friends'], 1)
+        self.assertTrue(summary['account'])
+
+        # the account itself is gone
+        self.assertFalse(ToolshedUser.objects.filter(id=user1_id).exists())
+        self.assertFalse(InventoryItem.global_objects.filter(owner_id=user1_id).exists())
+        self.assertFalse(StorageLocation.objects.filter(owner_id=user1_id).exists())
+        self.assertFalse(AccountPreference.objects.filter(user_id=user1_id).exists())
+
+        # the underlying identity is kept, so remote friends/history referencing it stay intact
+        from authentication.models import KnownIdentity
+        self.assertTrue(KnownIdentity.objects.filter(id=identity_id).exists())
+
+        # orphaned file (only referenced by the deleted user/items) is gone
+        self.assertFalse(File.objects.filter(hash='orphan').exists())
+        # file still referenced by the other user's item survives
+        self.assertTrue(File.objects.filter(hash='shared').exists())
+
+        # the other user's data and identity/friend relation to the deleted identity are untouched
+        self.f['local_user2'].refresh_from_db()
+        self.assertTrue(InventoryItem.objects.filter(owner=self.f['local_user2']).exists())
+        self.assertEqual(self.f['local_user2'].public_identity.friends.count(), 0)
+
+
+class ImportInventoryPropertiesTestCase(UserTestMixin, CategoryTestMixin, TagTestMixin, PropertyTestMixin,
+                                         ToolshedTestCase):
+    """Properties must round-trip through export/import even when their value contains a
+    comma or an '=' sign - characters that a naive "handle=value, handle2=value2" encoding of
+    the 'properties' CSV cell would misinterpret as a field/entry separator.
+    """
+
+    def setUp(self):
+        super().setUp()
+        self.prepare_users()
+        self.prepare_categories()
+        self.prepare_tags()
+        self.prepare_properties()
+
+    def test_property_values_with_comma_and_equals_round_trip(self):
+        item = InventoryItem.objects.create(owner=self.f['local_user1'], name='widget')
+        ItemProperty.objects.create(inventory_item=item, property=self.f['prop1'], value='10cm, 20cm')
+        ItemProperty.objects.create(inventory_item=item, property=self.f['prop2'], value='a=b')
+
+        csv_bytes = b''.join(rows_to_csv(list(inventory_rows(self.f['local_user1']))))
+
+        imported, errors = import_inventory(self.f['local_user2'], csv_bytes, available_files={})
+        self.assertEqual(errors, [])
+        self.assertEqual(imported, 1)
+
+        new_item = InventoryItem.objects.get(owner=self.f['local_user2'], name='widget')
+        values = {ip.property.name: ip.value for ip in new_item.itemproperty_set.select_related('property')}
+        self.assertEqual(values, {'prop1': '10cm, 20cm', 'prop2': 'a=b'})
+
+    def test_legacy_comma_equals_format_is_still_importable(self):
+        handle1 = self.f['prop1'].get_handle()
+        handle2 = self.f['prop2'].get_handle()
+        csv_data = (
+            'name,properties\r\n'
+            f'legacy widget,"{handle1}=value1, {handle2}=value2"\r\n'
+        ).encode('utf-8')
+
+        imported, errors = import_inventory(self.f['local_user1'], csv_data, available_files={})
+        self.assertEqual(errors, [])
+        self.assertEqual(imported, 1)
+
+        item = InventoryItem.objects.get(owner=self.f['local_user1'], name='legacy widget')
+        values = {ip.property.name: ip.value for ip in item.itemproperty_set.select_related('property')}
+        self.assertEqual(values, {'prop1': 'value1', 'prop2': 'value2'})
+
+    def test_item_without_properties_imports_cleanly(self):
+        item = InventoryItem.objects.create(owner=self.f['local_user1'], name='bare item')
+
+        csv_bytes = b''.join(rows_to_csv(list(inventory_rows(self.f['local_user1']))))
+
+        imported, errors = import_inventory(self.f['local_user2'], csv_bytes, available_files={})
+        self.assertEqual(errors, [])
+        self.assertEqual(imported, 1)
+
+        new_item = InventoryItem.objects.get(owner=self.f['local_user2'], name='bare item')
+        self.assertEqual(list(new_item.itemproperty_set.all()), [])
+
+    def test_category_and_tags_round_trip(self):
+        item = InventoryItem.objects.create(
+            owner=self.f['local_user1'], name='cat and tags item', category=self.f['cat1'])
+        item.tags.add(self.f['tag1'], self.f['tag2'], through_defaults={})
+
+        csv_bytes = b''.join(rows_to_csv(list(inventory_rows(self.f['local_user1']))))
+
+        imported, errors = import_inventory(self.f['local_user2'], csv_bytes, available_files={})
+        self.assertEqual(errors, [])
+        self.assertEqual(imported, 1)
+
+        new_item = InventoryItem.objects.get(owner=self.f['local_user2'], name='cat and tags item')
+        self.assertEqual(new_item.category, self.f['cat1'])
+        self.assertEqual(sorted(t.name for t in new_item.tags.all()), ['tag1', 'tag2'])
+
+    def test_unknown_property_handle_skips_item_with_error(self):
+        csv_data = (
+            'name,properties\r\n'
+            'ghost widget,test#property:doesnotexist=x\r\n'
+        ).encode('utf-8')
+
+        imported, errors = import_inventory(self.f['local_user1'], csv_data, available_files={})
+        self.assertEqual(imported, 0)
+        self.assertEqual(len(errors), 1)
+        self.assertIn('doesnotexist', errors[0])
+        self.assertFalse(InventoryItem.objects.filter(owner=self.f['local_user1'], name='ghost widget').exists())
+
+    def test_property_value_with_quote_character_round_trips(self):
+        item = InventoryItem.objects.create(owner=self.f['local_user1'], name='quoted widget')
+        ItemProperty.objects.create(inventory_item=item, property=self.f['prop1'], value='12" screen')
+
+        csv_bytes = b''.join(rows_to_csv(list(inventory_rows(self.f['local_user1']))))
+
+        imported, errors = import_inventory(self.f['local_user2'], csv_bytes, available_files={})
+        self.assertEqual(errors, [])
+        self.assertEqual(imported, 1)
+
+        new_item = InventoryItem.objects.get(owner=self.f['local_user2'], name='quoted widget')
+        values = {ip.property.name: ip.value for ip in new_item.itemproperty_set.select_related('property')}
+        self.assertEqual(values, {'prop1': '12" screen'})
+
+
+class ExportImportApiRoundTripTestCase(UserTestMixin, CategoryTestMixin, TagTestMixin, PropertyTestMixin,
+                                        ToolshedTestCase):
+    """End-to-end coverage of the /api/export/ + /api/import/ endpoints (as actually used by
+    clients), rather than calling the internal helper functions directly - this is what a real
+    export/import round trip between two accounts looks like.
+    """
+
+    def setUp(self):
+        super().setUp()
+        self.prepare_users()
+        self.prepare_categories()
+        self.prepare_tags()
+        self.prepare_properties()
+
+    def test_export_then_import_preserves_category_tags_and_properties(self):
+        import base64
+
+        item = InventoryItem.objects.create(
+            owner=self.f['local_user1'], name='drill', description='cordless drill',
+            category=self.f['cat1'], availability_policy='friends', owned_quantity=2)
+        item.tags.add(self.f['tag1'], self.f['tag2'], through_defaults={})
+        ItemProperty.objects.create(inventory_item=item, property=self.f['prop1'], value='10cm, 20cm')
+        ItemProperty.objects.create(inventory_item=item, property=self.f['prop2'], value='a=b')
+
+        export_reply = client.get('/api/export/', self.f['local_user1'])
+        self.assertEqual(export_reply.status_code, 200)
+        zip_bytes = export_reply.content
+
+        import_reply = client.post('/api/import/', self.f['local_user2'],
+                                    {'zip': base64.b64encode(zip_bytes).decode('ascii')})
+        self.assertEqual(import_reply.status_code, 200)
+        summary = import_reply.json()
+        self.assertEqual(summary['inventory_items'], 1)
+        self.assertEqual(summary['errors'], [])
+
+        new_item = InventoryItem.objects.get(owner=self.f['local_user2'], name='drill')
+        self.assertEqual(new_item.category, self.f['cat1'])
+        self.assertEqual(sorted(t.name for t in new_item.tags.all()), ['tag1', 'tag2'])
+
+        values = {ip.property.name: ip.value for ip in new_item.itemproperty_set.select_related('property')}
+        self.assertEqual(values, {'prop1': '10cm, 20cm', 'prop2': 'a=b'})
+

backend/toolshed/tests/test_workflow_api.py

@@ -0,0 +1,48 @@
+import json
+from django.test import Client
+from django.urls import reverse
+from rest_framework import status
+from authentication.tests import UserTestMixin, SignatureAuthClient, ToolshedTestCase
+from toolshed.tests import WorkflowTestMixin
+from toolshed.models import WorkflowInstance
+
+anonymous_client = Client()
+client = SignatureAuthClient()
+
+
+class WorkflowInstanceApiTestCase(UserTestMixin, WorkflowTestMixin, ToolshedTestCase):
+    """Comprehensive test cases for the Workflow API"""
+
+    def setUp(self):
+        super().setUp()
+        self.prepare_users()
+        self.prepare_workflows()
+
+
+    def test_get_workflow_instances(self):
+        reply = client.get('/api/workflows/', self.f['local_user1'])
+        self.assertEqual(reply.status_code, status.HTTP_200_OK)
+        self.assertEqual(len(reply.data), 3)
+        self.assertEqual(reply.data[0]['name'], 'workflow1')
+        self.assertEqual(reply.data[1]['name'], 'workflow1')
+        self.assertEqual(reply.data[2]['name'], 'workflow1')
+        self.assertEqual(reply.data[0]['state'], 'initial')
+        self.assertEqual(reply.data[1]['state'], 'upload')
+        self.assertEqual(reply.data[2]['state'], 'describe')
+        self.assertEqual(json.loads(reply.data[0]['payload']), {})
+        self.assertEqual(json.loads(reply.data[1]['payload']), {'files': ['ef35c4a9b2d1c4f1a3e6f7d8c9b0a1b2']})
+        self.assertEqual(json.loads(reply.data[2]['payload']), {'files': ['ef35c4a9b2d1c4f1a3e6f7d8c9b0a1b2',
+                                                              'a1b2c3d4e5f60718293a4b5c6d7e8f90',
+                                                                'b1c2d3e4f5a60718293b4c5d6e7f8090'],
+                                                    'descriptions': ['file 1 description']})
+
+
+
+    def test_get_workflow_instances_user2(self):
+        reply = client.get('/api/workflows/', self.f['local_user2'])
+        self.assertEqual(reply.status_code, status.HTTP_200_OK)
+        self.assertEqual(len(reply.data), 1)
+        self.assertEqual(reply.data[0]['name'], 'workflow2')
+        self.assertEqual(reply.data[0]['state'], 'initial')
+        self.assertEqual(json.loads(reply.data[0]['payload']), {})
+

cli-client/toolshed-client.py

@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+import argparse
+import os
+import requests
+from nacl.signing import SigningKey
+from json import dumps
+
+
+class ToolshedApi:
+    user = None
+    host = None
+    signing_key = None
+
+    def __init__(self, user, host, key):
+        if host is None:
+            raise ValueError("TOOLSHED_HOST environment variable not set")
+
+        if user is None:
+            raise ValueError("TOOLSHED_USER environment variable not set")
+
+        if key is None:
+            raise ValueError("TOOLSHED_KEY environment variable not set")
+
+        if len(key) != 64:
+            raise ValueError("TOOLSHED_KEY must be 64 hex characters")
+
+        signing_key = SigningKey(bytes.fromhex(key))
+
+        self.user = user
+        self.host = host
+        self.signing_key = signing_key
+
+    def get(self, target):
+        url = "http://" + self.host + target
+        signed = self.signing_key.sign(url.encode('utf-8'))
+        signature = signed.signature.hex()
+        response = requests.get(url, headers={"Authorization": "Signature " + self.user + ":" + signature})
+        return response.json()
+
+    def post(self, target, data):
+        url = "http://" + self.host + target
+        json = dumps(data)
+        signed = self.signing_key.sign(url.encode('utf-8') + json.encode('utf-8'))
+        signature = signed.signature.hex()
+        response = requests.post(url, headers={"Authorization": "Signature " + self.user + ":" + signature}, json=data)
+        return response.json()
+
+
+def main():
+    host = os.environ.get('TOOLSHED_HOST')
+    user = os.environ.get('TOOLSHED_USER')
+    key = os.environ.get('TOOLSHED_KEY')
+
+    parser = argparse.ArgumentParser(description='Toolshed API client')
+    parser.add_argument('--host', help='Toolshed host')
+    parser.add_argument('--user', help='Toolshed user')
+    parser.add_argument('--key', help='Toolshed key')
+    parser.add_argument('cmd', help='Command')
+    args = parser.parse_args()
+
+    if args.host is not None:
+        host = args.host
+
+    if args.user is not None:
+        user = args.user
+
+    if args.key is not None:
+        key = args.key
+
+    api = ToolshedApi(user, host, key)
+
+    if args.cmd == 'getinventory':
+        inv = api.get("/api/inventory_items/")
+        print(inv)
+    elif args.cmd == 'additem':
+        inv = api.post("/api/inventory_items/", {"name": "test"})
+        print(inv)
+    else:
+        print("Unknown command: " + args.cmd)
+
+
+if __name__ == '__main__':
+    main()

deploy/dev/Dockerfile.backend

@@ -11,6 +11,7 @@ WORKDIR /code
 # Install dependencies
 COPY requirements.txt /code/
 RUN pip install --no-cache-dir -r requirements.txt
+RUN touch /mnt/db.sqlite3 &&  touch /mnt/testdata.py && mkdir /mnt/userfiles
 
 # Run the application
-CMD ["python", "manage.py", "runserver", "0.0.0.0:8000", "--insecure"]
+CMD ["sh", "-c", "python manage.py migrate && python manage.py runserver 0.0.0.0:8000 --insecure"]

deploy/dev/Dockerfile.frontend

@@ -8,6 +8,7 @@ WORKDIR /app
 # A wildcard is used to ensure both package.json AND package-lock.json are copied
 COPY package.json ./
 
+COPY extras/ ./extras/
 RUN npm install
 
 CMD [ "npm", "run", "dev", "--", "--host"]

deploy/dev/instance_a/a.env

@@ -2,6 +2,8 @@
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG=True
 
+SERVE_X_ACCEL_REDIRECT=False
+
 # SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY='e*lm&*!j0_stqaiod$1zob(vs@aq6+n-i$1%!rek)_v9n^ue$3'
 

deploy/dev/instance_a/nginx-a.dev.conf

@@ -14,7 +14,7 @@ http {
     }
 
     upstream dns {
-        server dns:8053;
+        server toolshed-dns:8053;
     }
 
     server {
@@ -45,8 +45,34 @@ http {
             proxy_pass http://backend;
         }
 
+        location /media {
+            proxy_set_header Host $host:$server_port;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header X-Forwarded-Host $host:$server_port;
+            proxy_set_header X-Forwarded-Port $server_port;
+            proxy_pass http://backend;
+        }
+
+        location /djangoadmin {
+            proxy_set_header Host $host:$server_port;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header X-Forwarded-Host $host:$server_port;
+            proxy_set_header X-Forwarded-Port $server_port;
+            proxy_pass http://backend;
+        }
+
         location /docs {
-            proxy_pass http://backend/docs;
+            proxy_set_header Host $host:$server_port;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header X-Forwarded-Host $host:$server_port;
+            proxy_set_header X-Forwarded-Port $server_port;
+            proxy_pass http://backend;
         }
 
         location /static {
@@ -80,17 +106,35 @@ http {
     # DoH server
     server {
         listen 5353 ssl;
-        server_name localhost;
+        server_name localhost 127.0.0.3;
 
         ssl_certificate /etc/nginx/nginx.crt;
         ssl_certificate_key /etc/nginx/nginx.key;
 
-        location /dns-query {
-            proxy_pass http://dns;
-            # allow any origin
-            add_header 'Access-Control-Allow-Origin' '*';
-            add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
+        # Ensure CORS headers are present even when nginx generates 5xx responses.
+        add_header 'Access-Control-Allow-Origin' '*' always;
+        add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS' always;
+        add_header 'Access-Control-Allow-Headers' 'Accept, Content-Type, Origin, User-Agent' always;
+        add_header 'Access-Control-Expose-Headers' 'Content-Type' always;
+        error_page 500 502 503 504 = @doh_error;
 
+        location /dns-query {
+            if ($request_method = OPTIONS) {
+                add_header 'Access-Control-Allow-Origin' '*' always;
+                add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS' always;
+                add_header 'Access-Control-Allow-Headers' 'Accept, Content-Type, Origin, User-Agent' always;
+                add_header 'Access-Control-Max-Age' 86400 always;
+                add_header 'Content-Length' 0;
+                add_header 'Content-Type' 'text/plain; charset=utf-8';
+                return 204;
+            }
+
+            proxy_pass http://dns;
+        }
+
+        location @doh_error {
+            default_type text/plain;
+            return 502 'DoH upstream unavailable';
         }
     }
 }

deploy/dev/instance_a/testdata.py

@@ -0,0 +1,108 @@
+import base64
+
+
+def create_test_data():
+    print('Creating test data for instance A')
+
+    from authentication.models import ToolshedUser
+    admin = None
+    try:
+        if ToolshedUser.objects.filter(username='admin').exists():
+            admin = ToolshedUser.objects.get(username='admin')
+        else:
+            admin = ToolshedUser.objects.create_superuser('admin', 'admin@localhost', '')
+            admin.set_password('j7Th5TfCGUZmQ7U')
+            admin.save()
+            print('Created {}@{} with private key {} and public key {}'.format(admin.username, admin.domain,
+                                                                               admin.private_key,
+                                                                               admin.public_identity.public_key))
+    except Exception as e:
+        print('Admin user already exists, skipping')
+
+    from hostadmin.models import Domain
+    try:
+        domain1 = Domain.objects.create(name='localhost', owner=admin, open_registration=False)
+        domain1.save()
+        print('Created domain {} with closed registration'.format(domain1.name))
+    except Exception as e:
+        print('Domain localhost already exists, skipping')
+
+    domain2 = None
+    try:
+        if Domain.objects.filter(name='a.localhost').exists():
+            domain2 = Domain.objects.get(name='a.localhost')
+        domain2 = Domain.objects.create(name='a.localhost', owner=admin, open_registration=True)
+        domain2.save()
+        print('Created domain {} with open registration'.format(domain2.name))
+    except Exception as e:
+        print('Domain b.localhost already exists, skipping')
+
+    user = None
+    try:
+        if ToolshedUser.objects.filter(username='test_a').exists():
+            user = ToolshedUser.objects.get(username='test_a')
+        user = ToolshedUser.objects.create_user('test_a', 'testa@example.com', '', domain=domain2.name,
+                                                private_key='4ab79601edc400fd0263c7d5fd045ea7f5de28f1dd8905e2479f96893f3257d8')
+        user.set_password('test_a')
+        user.save()
+        print('Created user {}@{} with private key {} and public key {}'.format(user.username, user.domain,
+                                                                                user.private_key,
+                                                                                user.public_identity.public_key))
+    except Exception as e:
+        print('User foobar already exists, skipping')
+
+    from authentication.models import KnownIdentity
+    identity = None
+    try:
+        if KnownIdentity.objects.filter(username='test_b').exists():
+            identity = KnownIdentity.objects.get(username='test_b')
+        identity = KnownIdentity.objects.create(username='test_b', domain='b.localhost',
+                                                public_key='14c44f03c3a0406934cf3a27b0eeedae8a08a3f436690c7103eca13435172a8c')
+        # pk '2ec1e7d5f5b8d5f87233944970d57f942095fe9e6c4fc49edde61fcd3fb1bf40'
+        identity.save()
+        print('Created identity {}@{} with public key {}'.format(identity.username, identity.domain,
+                                                                 identity.public_key))
+    except Exception as e:
+        print('Identity already exists, skipping')
+
+    from toolshed.models import Category
+    category1 = None
+    try:
+        if Category.objects.filter(name='Test Category').exists():
+            category1 = Category.objects.get(name='Test Category')
+        category1 = Category.objects.get_or_create(name='Test Category', origin='test')[0]
+    except Exception as e:
+        print('Category already exists, skipping')
+
+    from toolshed.models import InventoryItem
+    item1 = None
+    try:
+        if InventoryItem.objects.filter(name='Test Item').exists():
+            item1 = InventoryItem.objects.get(name='Test Item')
+        item1 = InventoryItem.objects.create(name='Test Item', description='This is a test item', category=category1,
+                                             availability_policy='rent', owned_quantity=1, owner=user)
+        item1.save()
+    except Exception as e:
+        print('Item already exists, skipping')
+
+    try:
+        item2 = InventoryItem.objects.create(name='Test Item 2', description='This is a test item', category=category1,
+                                             availability_policy='share', owned_quantity=1, owner=user)
+        item2.save()
+        print('Created test items with IDs "{}" and "{}"'.format(item1.id, item2.id))
+    except Exception as e:
+        print('Item already exists, skipping')
+
+    try:
+        user.friends.add(identity)
+        print('Added identity {} to friends list of user {}'.format(identity.username, user.username))
+    except Exception as e:
+        print('Identity already in friends list, skipping')
+
+    from files.models import File
+    try:
+        file1 = File.objects.create(mime_type='text/plain', data=base64.b64encode(b'testcontent1').decode('utf-8'))
+        file1.save()
+        print(f'Created file at /{file1.hash[:2]}/{file1.hash[2:4]}/{file1.hash[4:6]}/{file1.hash[6:]}')
+    except Exception as e:
+        print('File already exists, skipping')

deploy/dev/instance_b/b.env

@@ -1,6 +1,8 @@
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG=True
 
+SERVE_X_ACCEL_REDIRECT=True
+
 # SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY='7ccxjje%q@@0*z+r&-$fy3(rj9n)%$!sk-k++-&rb=_u(wpjbe'
 

deploy/dev/instance_b/nginx-b.dev.conf

@@ -35,6 +35,28 @@ http {
             proxy_pass http://backend;
         }
 
+        location /media {
+            proxy_set_header Host $host:$server_port;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header X-Forwarded-Host $host:$server_port;
+            proxy_set_header X-Forwarded-Port $server_port;
+            proxy_pass http://backend;
+        }
+
+        location /redirect_media/ {
+            internal;
+            alias /var/www/userfiles/;
+            # This location serves the file directly, bypassing Django (and therefore
+            # django-cors-headers) entirely - it's the target of the X-Accel-Redirect
+            # response from files/media_urls.py, used when SERVE_X_ACCEL_REDIRECT=True.
+            # CORS headers must be added here explicitly since nothing else will.
+            add_header 'Access-Control-Allow-Origin' '*' always;
+            add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS' always;
+            add_header 'Access-Control-Allow-Headers' 'Authorization, Accept, Content-Type, Origin, User-Agent' always;
+        }
+
         location /docs {
             proxy_pass http://backend/docs;
         }

deploy/dev/instance_b/testdata.py

@@ -0,0 +1,108 @@
+import base64
+
+
+def create_test_data():
+    print('Creating test data for instance B')
+
+    from authentication.models import ToolshedUser
+    admin = None
+    try:
+        if ToolshedUser.objects.filter(username='admin').exists():
+            admin = ToolshedUser.objects.get(username='admin')
+        else:
+            admin = ToolshedUser.objects.create_superuser('admin', 'admin@localhost', '')
+            admin.set_password('j7Th5TfCGUZmQ7U')
+            admin.save()
+            print('Created {}@{} with private key {} and public key {}'.format(admin.username, admin.domain,
+                                                                               admin.private_key,
+                                                                               admin.public_identity.public_key))
+    except Exception as e:
+        print('Admin user already exists, skipping')
+
+    from hostadmin.models import Domain
+    try:
+        domain1 = Domain.objects.create(name='localhost', owner=admin, open_registration=False)
+        domain1.save()
+        print('Created domain {} with closed registration'.format(domain1.name))
+    except Exception as e:
+        print('Domain localhost already exists, skipping')
+
+    domain2 = None
+    try:
+        if Domain.objects.filter(name='b.localhost').exists():
+            domain2 = Domain.objects.get(name='b.localhost')
+        domain2 = Domain.objects.create(name='b.localhost', owner=admin, open_registration=True)
+        domain2.save()
+        print('Created domain {} with open registration'.format(domain2.name))
+    except Exception as e:
+        print('Domain b.localhost already exists, skipping')
+
+    user = None
+    try:
+        if ToolshedUser.objects.filter(username='test_b').exists():
+            user = ToolshedUser.objects.get(username='test_b')
+        user = ToolshedUser.objects.create_user('test_b', 'testb@example.com', '', domain=domain2.name,
+                                                private_key='2ec1e7d5f5b8d5f87233944970d57f942095fe9e6c4fc49edde61fcd3fb1bf40')
+        user.set_password('test_b')
+        user.save()
+        print('Created user {}@{} with private key {} and public key {}'.format(user.username, user.domain,
+                                                                                user.private_key,
+                                                                                user.public_identity.public_key))
+    except Exception as e:
+        print('User foobar already exists, skipping')
+
+    from authentication.models import KnownIdentity
+    identity = None
+    try:
+        if KnownIdentity.objects.filter(username='test_a').exists():
+            identity = KnownIdentity.objects.get(username='test_a')
+        identity = KnownIdentity.objects.create(username='test_a', domain='a.localhost',
+                                                public_key='cdcf6f1897b0ab3a123047d9b707d4123f01daf41921dbe787d1d0697f0ee42b')
+        # pk '4ab79601edc400fd0263c7d5fd045ea7f5de28f1dd8905e2479f96893f3257d8'
+        identity.save()
+        print('Created identity {}@{} with public key {}'.format(identity.username, identity.domain,
+                                                                 identity.public_key))
+    except Exception as e:
+        print('Identity already exists, skipping')
+
+    from toolshed.models import Category
+    category1 = None
+    try:
+        if Category.objects.filter(name='Test Category').exists():
+            category1 = Category.objects.get(name='Test Category')
+        category1 = Category.objects.get_or_create(name='Test Category', origin='test')[0]
+    except Exception as e:
+        print('Category already exists, skipping')
+
+    from toolshed.models import InventoryItem
+    item1 = None
+    try:
+        if InventoryItem.objects.filter(name='Test Item 3').exists():
+            item1 = InventoryItem.objects.get(name='Test Item 3')
+        item1 = InventoryItem.objects.create(name='Test Item 3', description='This is a test item', category=category1,
+                                             availability_policy='sell', owned_quantity=1, owner=user)
+        item1.save()
+    except Exception as e:
+        print('Item already exists, skipping')
+
+    try:
+        item2 = InventoryItem.objects.create(name='Test Item 4', description='This is a test item', category=category1,
+                                             availability_policy='lend', owned_quantity=1, owner=user)
+        item2.save()
+        print('Created test items with IDs "{}" and "{}"'.format(item1.id, item2.id))
+    except Exception as e:
+        print('Item already exists, skipping')
+
+    try:
+        user.friends.add(identity)
+        print('Added identity {} to friends list of user {}'.format(identity.username, user.username))
+    except Exception as e:
+        print('Identity already in friends list, skipping')
+
+    from files.models import File
+    try:
+        file1 = File.objects.create(mime_type='text/plain', data=base64.b64encode(b'testcontent1').decode('utf-8'))
+        file1.save()
+        print(f'Created file at /{file1.hash[:2]}/{file1.hash[2:4]}/{file1.hash[4:6]}/{file1.hash[6:]}')
+    except Exception as e:
+        print('File already exists, skipping')

deploy/dev/zone.json

@@ -21,4 +21,4 @@
       "target": "127.0.0.2."
     }
   }
-]
+]

deploy/docker-compose.override.yml

@@ -5,10 +5,16 @@ services:
     build:
       context: ../backend/
       dockerfile: ../deploy/dev/Dockerfile.backend
+    environment:
+      TOOLSHED_DB_PATH: /mnt/db.sqlite3
+      TOOLSHED_USERFILES_PATH: /mnt/userfiles
+      TOOLSHED_SETUP_PATH: /mnt/testdata.py
     volumes:
       - ../backend:/code
       - ../deploy/dev/instance_a/a.env:/code/.env
-      - ../deploy/dev/instance_a/a.sqlite3:/code/db.sqlite3
+      - ../deploy/dev/instance_a/testdata.py:/mnt/testdata.py
+      - ../deploy/dev/instance_a/a.sqlite3:/mnt/db.sqlite3
+      - ../deploy/dev/instance_a/userfiles:/mnt/userfiles
     expose:
       - 8000
     command: bash -c "python configure.py; python configure.py testdata; python manage.py runserver 0.0.0.0:8000 --insecure"
@@ -17,10 +23,16 @@ services:
     build:
       context: ../backend/
       dockerfile: ../deploy/dev/Dockerfile.backend
+    environment:
+      TOOLSHED_DB_PATH: /mnt/db.sqlite3
+      TOOLSHED_USERFILES_PATH: /mnt/userfiles
+      TOOLSHED_SETUP_PATH: /mnt/testdata.py
     volumes:
       - ../backend:/code
       - ../deploy/dev/instance_b/b.env:/code/.env
-      - ../deploy/dev/instance_b/b.sqlite3:/code/db.sqlite3
+      - ../deploy/dev/instance_b/testdata.py:/mnt/testdata.py
+      - ../deploy/dev/instance_b/b.sqlite3:/mnt/db.sqlite3
+      - ../deploy/dev/instance_b/userfiles:/mnt/userfiles
     expose:
       - 8000
     command: bash -c "python configure.py; python configure.py testdata; python manage.py runserver 0.0.0.0:8000 --insecure"
@@ -30,11 +42,11 @@ services:
       context: ../frontend/
       dockerfile: ../deploy/dev/Dockerfile.frontend
     volumes:
-      - ../frontend:/app:ro
+      - ../frontend:/app
       - /app/node_modules
     expose:
       - 5173
-    command: npm run dev -- --host
+    command: bash -c "npm install && npm run dev -- --host"
 
   wiki:
     build:
@@ -55,6 +67,7 @@ services:
       - ./dev/instance_a/nginx-a.dev.conf:/etc/nginx/nginx.conf:ro
       - ./dev/instance_a/dns.json:/var/www/dns.json:ro
       - ./dev/instance_a/domains.json:/var/www/domains.json:ro
+      - ./dev/instance_a/userfiles:/var/www/userfiles:ro
     ports:
       - "127.0.0.1:8080:8080"
       - "127.0.0.3:5353:5353"
@@ -65,6 +78,7 @@ services:
       dockerfile: dev/Dockerfile.proxy
     volumes:
       - ./dev/instance_b/nginx-b.dev.conf:/etc/nginx/nginx.conf:ro
+      - ./dev/instance_b/userfiles:/var/www/userfiles:ro
     ports:
       - "127.0.0.2:8080:8080"
 
@@ -76,3 +90,7 @@ services:
       - ./dev/zone.json:/dns/zone.json
     expose:
       - 8053
+    networks:
+      default:
+        aliases:
+          - toolshed-dns

deploy/prod/Dockerfile

@@ -0,0 +1,14 @@
+FROM node:alpine as builder
+WORKDIR /app
+COPY ./package.json /app/package.json
+COPY . /app
+RUN npm install
+RUN npm run build
+
+
+FROM nginx:alpine as runner
+RUN apk add --update npm
+WORKDIR /app
+COPY --from=builder /app/dist /usr/share/nginx/html
+COPY ./nginx.conf /etc/nginx/nginx.conf
+EXPOSE 80

docs/development.md

@@ -97,6 +97,12 @@ Start the fullstack application:
 docker-compose -f deploy/docker-compose.override.yml up --build
 ```
 
+Run backend tests in Docker:
+
+``` bash
+docker compose -f deploy/docker-compose.override.yml run --rm backend-a bash -lc "python configure.py && python manage.py test"
+```
+
 This will start an instance of the frontend and wiki, a limited DoH (DNS over HTTPS) server and **two** instances of the backend.
 The two backend instances are set up to use the domains `a.localhost` and `b.localhost`, the local DoH
 server is used to direct the frontend to the correct backend instance.

frontend/extras

@@ -0,0 +1 @@
+Subproject commit 21bf28a8b6293872f5f7a42c9ca0bc12ede5aaae

frontend/package.json

@@ -16,7 +16,10 @@
     "vue": "^3.2.47",
     "vue-multiselect": "^2.1.7",
     "vue-router": "^4.1.6",
-    "vuex": "^4.1.0"
+    "vuex": "^4.1.0",
+    "extras": "file:./extras",
+    "jquery": "^3.6.0",
+    "popper.js": "^1.16.1"
   },
   "devDependencies": {
     "@vitejs/plugin-vue": "^4.0.0",

frontend/src/assets/fonts/fa-regular-400.svg

@@ -0,0 +1,801 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1">
+<metadata>
+Created by FontForge 20200314 at Mon Oct  5 09:50:45 2020
+ By Robert Madole
+Copyright (c) Font Awesome
+</metadata>
+<!-- Font Awesome Free 5.15.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><defs>
+<font id="FontAwesome5Free-Regular" horiz-adv-x="512" >
+  <font-face 
+    font-family="Font Awesome 5 Free Regular"
+    font-weight="400"
+    font-stretch="normal"
+    units-per-em="512"
+    panose-1="2 0 5 3 0 0 0 0 0 0"
+    ascent="448"
+    descent="-64"
+    bbox="-0.0663408 -64.0662 640.004 448.1"
+    underline-thickness="25"
+    underline-position="-50"
+    unicode-range="U+0020-F5C8"
+  />
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+  </font>
+</defs></svg>

frontend/src/components/AuthenticatedImage.vue

@@ -0,0 +1,112 @@
+<template>
+    <img :src="image_data" :title="title || (owner + ':' + src)" :alt="alt" :class="imgClass"
+         :width="width" :height="height" :style="{objectFit: fit}"/>
+</template>
+
+<script>
+import {mapActions, mapGetters} from "vuex";
+
+export default {
+    name: "AuthenticatedImage",
+    props: {
+        src: {
+            type: String,
+            required: false,
+            default: null
+        },
+        owner: {
+            type: String,
+            required: true
+        },
+        title: {
+            type: String,
+            default: ''
+        },
+        alt: {
+            type: String,
+            default: 'image'
+        },
+        imgClass: {
+            type: String,
+            default: ''
+        },
+        fallbackSrc: {
+            type: String,
+            default: '/assets/img/avatars/avatar.png'
+        },
+        width: {
+            type: [String, Number],
+            default: null
+        },
+        height: {
+            type: [String, Number],
+            default: null
+        },
+        fit: {
+            type: String,
+            default: 'contain'
+        },
+        refreshKey: {
+            type: [String, Number],
+            default: null
+        }
+    },
+    data() {
+        return {
+            image_data: "",
+            servers: [],
+            lastRequestId: 0
+        }
+    },
+    computed: {
+        ...mapGetters(["signAuth"])
+    },
+    methods: {
+        ...mapActions(["getFriendServers"]),
+        async loadImage() {
+            const requestId = ++this.lastRequestId;
+            if (!this.src) {
+                if (requestId === this.lastRequestId) {
+                    this.image_data = this.fallbackSrc;
+                }
+                return;
+            }
+            try {
+                this.servers = await this.getFriendServers({username: this.owner});
+                const response = await this.servers.getRaw(this.signAuth, this.src);
+                if (requestId !== this.lastRequestId) {
+                    return;
+                }
+                if (!response || !response.ok) {
+                    this.image_data = this.fallbackSrc;
+                    return;
+                }
+                const mime_type = response.headers.get("content-type") || 'image/png';
+                const base64 = btoa(new Uint8Array(await response.arrayBuffer())
+                    .reduce((data, byte) => data + String.fromCharCode(byte), ""));
+                if (requestId === this.lastRequestId) {
+                    this.image_data = "data:" + mime_type + ";base64," + base64;
+                }
+            } catch (_e) {
+                if (requestId === this.lastRequestId) {
+                    this.image_data = this.fallbackSrc;
+                }
+            }
+        }
+    },
+    watch: {
+        src() {
+            this.loadImage();
+        },
+        owner() {
+            this.loadImage();
+        },
+        refreshKey() {
+            this.loadImage();
+        }
+    },
+    mounted() {
+        this.loadImage();
+    }
+}
+</script>

frontend/src/components/BaseLayout.vue

@@ -6,6 +6,14 @@
                 <a class="sidebar-toggle d-flex" @click="toggleSidebar">
                     <i class="hamburger align-self-center"></i>
                 </a>
+                <SearchBox/>
+                <div class="navbar-collapse collapse">
+                    <ul class="navbar-nav navbar-align">
+                        <Notifications :notifications="notifications"/>
+                        <Messages :messages="messages"/>
+                        <UserDropdown/>
+                    </ul>
+                </div>
             </nav>
             <slot></slot>
             <Footer/>
@@ -14,14 +22,27 @@
 </template>
 
 <script>
+import {mapGetters, mapMutations, mapState} from 'vuex';
+import Notifications from "@/components/Notifications.vue";
+import Messages from "@/components/Messages.vue";
 import Footer from "@/components/Footer.vue";
 import Sidebar from "@/components/Sidebar.vue";
+import UserDropdown from "@/components/UserDropdown.vue";
+import SearchBox from "@/components/SearchBox.vue";
 
 export default {
     name: 'BaseLayout',
     components: {
+        SearchBox,
+        UserDropdown,
+        Sidebar,
         Footer,
-        Sidebar
+        Messages,
+        Notifications
+    },
+    computed: {
+        ...mapState(['messages']),
+        ...mapGetters(['notifications']),
     },
     props: {
         hideSearch: {
@@ -68,6 +89,10 @@ export default {
     box-shadow: 0 0 2rem var(--bs-shadow)
 }
 
+.navbar-align {
+    margin-left: auto;
+}
+
 .navbar-bg {
     background: var(--bs-white);
 }
@@ -112,4 +137,43 @@ export default {
     }
 }
 
+
+</style>
+
+<style>
+.nav-flag::after, .nav-icon::after {
+    display: none !important;
+}
+
+.nav-flag .feather, .nav-flag svg, .nav-icon .feather, .nav-icon svg {
+    width: 20px;
+    height: 20px;
+}
+
+.nav-flag, .nav-icon {
+    padding: .1rem .8rem;
+    display: block;
+    font-size: 1.5rem;
+    color: #6c757d;
+    transition: background .1s ease-in-out, color .1s ease-in-out;
+    line-height: 1.4;
+}
+
+.nav-item .indicator {
+    background: #3b7ddd;
+    box-shadow: 0 .1rem .2rem #0000000d;
+    border-radius: 50%;
+    display: block;
+    height: 18px;
+    width: 18px;
+    padding: 1px;
+    position: absolute;
+    top: 0;
+    right: -8px;
+    text-align: center;
+    transition: top .1s ease-out;
+    font-size: .675rem;
+    color: #fff;
+}
+
 </style>

frontend/src/components/CombinedFileField.vue

@@ -0,0 +1,196 @@
+<template>
+    <drag-drop-file-source @input="addFiles">
+        <h3 v-if="create">Create New</h3>
+        <h3 v-else>Update</h3>
+        <ul>
+            <li v-for="file in without_images(files)" :key="file.id">
+                {{ file.name }}
+            </li>
+            <li v-for="file in without_images(item_files)" :key="file.id">
+                {{ file.name }}
+            </li>
+        </ul>
+        <hr>
+        <div style="position: relative;">
+            <div class="image-list">
+                <deletable-wrapper v-for="file in only_images(item_files).filter(file => file.owner)" :key="file.id"
+                                   @delete="deleteFile(file)">
+                    <authenticated-image :src="file.name" :owner="file.owner" class="img-thumbnail"/>
+                </deletable-wrapper>
+                <deletable-wrapper v-for="file in only_images(item_files).filter(file => file.data)" :key="file.id"
+                                   @delete="deleteTempFile(file)">
+                    <img :alt="file.name" :src="'data:' + file.mime_type + ';base64,' + file.data"
+                         class="img-thumbnail border-info">
+                </deletable-wrapper>
+                <fs-file-source @input="addFiles">
+                    <div class="img-thumbnail btn btn-outline-primary">
+                        <b-icon-upload></b-icon-upload>
+                    </div>
+                </fs-file-source>
+                <camera-file-source @input="addFiles">
+                    <div class="img-thumbnail btn btn-outline-primary">
+                        <b-icon-camera></b-icon-camera>
+                    </div>
+                </camera-file-source>
+                <webcam-file-source @input="addFiles">
+                    <div class="img-thumbnail btn btn-outline-primary">
+                        <b-icon-camera-video></b-icon-camera-video>
+                    </div>
+                </webcam-file-source>
+                <label class="img-thumbnail btn btn-outline-primary" for="file-dropdown">
+                    <b-icon-plus></b-icon-plus>
+                </label>
+            </div>
+            <input type="checkbox" id="file-dropdown" class="invisible-input">
+            <div class="dropdown-menu" v-if="only_images(files).length > 0">
+                <div class="image-list">
+                    <span v-for="file in only_images(files)" :key="file.id" @click="addExistingFiles([file])"
+                          style="cursor: pointer;">
+                        <authenticated-image :src="file.name" :owner="file.owner" class="img-thumbnail"/>
+                    </span>
+                </div>
+            </div>
+        </div>
+    </drag-drop-file-source>
+</template>
+
+<style scoped>
+.img-thumbnail {
+    width: 95px;
+    height: 54px;
+    object-fit: cover;
+}
+
+.img-thumbnail svg {
+    width: 100%;
+    height: 100%;
+}
+
+.image-list {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 5px;
+}
+
+.invisible-input {
+    display: none;
+}
+
+#file-dropdown:checked ~ .dropdown-menu {
+    display: block;
+}
+
+.dropdown-menu:hover {
+    display: block;
+}
+
+#file-dropdown:checked ~ label {
+    color: #fff;
+    background-color: var(--bs-primary);
+    border-color: var(--bs-primary);
+}
+
+#file-dropdown:checked ~ label:hover {
+    color: var(--bs-primary);
+    background-color: initial;
+}
+
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+import {mapActions, mapState} from "vuex";
+import AuthenticatedImage from "@/components/AuthenticatedImage.vue";
+import DeletableWrapper from "@/components/DeletableWrapper.vue";
+//import DragDropFileSource from "@/../extras/components/inputs/DragDropFileSource.vue";
+//import CameraFileSource from "@/../extras/components/inputs/CameraFileSource.vue";
+//import FsFileSource from "@/../extras/components/inputs/FsFileSource.vue";
+import DragDropFileSource from "@/components/inputs/DragDropFileSource.vue";
+import CameraFileSource from "@/components/inputs/CameraFileSource.vue";
+import FsFileSource from "@/components/inputs/FsFileSource.vue";
+import WebcamFileSource from "@/components/inputs/WebcamFileSource.vue";
+
+export default {
+    name: "CombinedFileField",
+    components: {
+        WebcamFileSource,
+        AuthenticatedImage,
+        DeletableWrapper,
+        DragDropFileSource,
+        CameraFileSource,
+        FsFileSource,
+        ...BIcons
+    },
+    props: {
+        item_files: {
+            type: Array,
+            required: true
+        },
+        item_id: {
+            type: Number
+        },
+        create: {
+            type: Boolean,
+            default: false
+        }
+    },
+    emits: ["change"],
+    computed: {
+        ...mapState(["files"]),
+    },
+    methods: {
+        ...mapActions(["fetchFiles", "pushFile", "deleteItemFile"]),
+        async uploadFiles(files) {
+            const jobs = files.map(async file => {
+                return await this.pushFile({
+                    file: file,
+                    item_id: this.item_id
+                });
+            });
+            return await Promise.all(jobs);
+        },
+        addFiles(files) {
+            console.log("add files", files);
+            const new_files = files.filter(file => !this.item_files.find(f => f.hash === file.hash));
+            if (new_files.length === 0) {
+                console.log("no new files");
+                return;
+            }
+            if (!this.create) {
+                this.uploadFiles(new_files).then((uploaded) => {
+                    this.$emit("change", [...this.item_files, ...uploaded]);
+                })
+            } else {
+                this.$emit("change", [...this.item_files, ...new_files]);
+            }
+
+        },
+        addExistingFiles(files) {
+            console.log("add existing files", files);
+            const new_files = files.filter(file => !this.item_files.find(f => f.id === file.id));
+            if (new_files.length === 0) {
+                console.log("no new files");
+                return;
+            }
+            this.$emit("change", [...this.item_files, ...new_files]);
+        },
+        deleteFile(file) {
+            this.deleteItemFile({item_id: this.item_id, file_id: file.id}).then(() => {
+                this.$emit("change", this.item_files.filter(f => f.id !== file.id));
+            });
+        },
+        deleteTempFile(file) {
+            this.$emit("change", this.item_files.filter(f => f.hash !== file.hash));
+        },
+        only_images(files) {
+            return files.filter(file => file.mime_type.startsWith("image/"));
+        },
+        without_images(files) {
+            return files.filter(file => !file.mime_type.startsWith("image/"));
+        }
+    },
+    mounted() {
+        this.fetchFiles();
+    }
+}
+</script>

frontend/src/components/DeletableWrapper.vue

@@ -0,0 +1,36 @@
+<template>
+    <span style="position: relative; display: inline-block;">
+        <div class="delete-button">
+            <button class="btn btn-danger btn-sm" @click="triggerDelete">
+                <b-icon-trash></b-icon-trash>
+            </button>
+        </div>
+        <slot></slot>
+    </span>
+</template>
+
+<style scoped>
+.delete-button {
+    position: absolute;
+    top: 0;
+    right: 0;
+    z-index: 1;
+}
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+
+export default {
+    name: "DeletableWrapper",
+    components: {
+        ...BIcons
+    },
+    emits: ["delete"],
+    methods: {
+        triggerDelete() {
+            this.$emit("delete");
+        }
+    }
+}
+</script>

frontend/src/components/Messages.vue

@@ -0,0 +1,131 @@
+<template>
+    <li class="nav-item dropdown">
+        <a class="nav-icon dropdown-toggle" href="#" @click="toggleDropdown">
+            <div class="position-relative">
+                <b-icon-chat-left class="bi-valign-middle"></b-icon-chat-left>
+            </div>
+        </a>
+        <div class="dropdown-menu dropdown-menu-lg dropdown-menu-right py-0" id="messagesDropdown">
+            <div class="dropdown-menu-header">
+                <div class="position-relative">
+                    4 New Messages
+                </div>
+            </div>
+            <div class="list-group">
+                <a href="#" class="list-group-item">
+                    <div class="row g-0 align-items-center">
+                        <div class="col-3">
+                            <img src="/assets/img/avatars/avatar-5.png"
+                                 class="avatar img-fluid rounded-circle" alt="Vanessa Tucker">
+                        </div>
+                        <div class="col-9 pl-2">
+                            <div class="text-dark">Vanessa Tucker</div>
+                            <div class="text-muted small mt-1">Nam pretium turpis et arcu. Duis arcu
+                                tortor.
+                            </div>
+                            <div class="text-muted small mt-1">15m ago</div>
+                        </div>
+                    </div>
+                </a>
+                <a href="#" class="list-group-item">
+                    <div class="row g-0 align-items-center">
+                        <div class="col-3">
+                            <img src="/assets/img/avatars/avatar-2.png"
+                                 class="avatar img-fluid rounded-circle" alt="William Harris">
+                        </div>
+                        <div class="col-9 pl-2">
+                            <div class="text-dark">William Harris</div>
+                            <div class="text-muted small mt-1">Curabitur ligula sapien euismod
+                                vitae.
+                            </div>
+                            <div class="text-muted small mt-1">2h ago</div>
+                        </div>
+                    </div>
+                </a>
+                <a href="#" class="list-group-item">
+                    <div class="row g-0 align-items-center">
+                        <div class="col-3">
+                            <img src="/assets/img/avatars/avatar-4.png"
+                                 class="avatar img-fluid rounded-circle" alt="Christina Mason">
+                        </div>
+                        <div class="col-9 pl-2">
+                            <div class="text-dark">Christina Mason</div>
+                            <div class="text-muted small mt-1">Pellentesque auctor neque nec urna.
+                            </div>
+                            <div class="text-muted small mt-1">4h ago</div>
+                        </div>
+                    </div>
+                </a>
+                <a href="#" class="list-group-item">
+                    <div class="row g-0 align-items-center">
+                        <div class="col-3">
+                            <img src="/assets/img/avatars/avatar-3.png"
+                                 class="avatar img-fluid rounded-circle" alt="Sharon Lessman">
+                        </div>
+                        <div class="col-9 pl-2">
+                            <div class="text-dark">Sharon Lessman</div>
+                            <div class="text-muted small mt-1">Aenean tellus metus, bibendum sed,
+                                posuere ac,
+                                mattis non.
+                            </div>
+                            <div class="text-muted small mt-1">5h ago</div>
+                        </div>
+                    </div>
+                </a>
+            </div>
+            <div class="dropdown-menu-footer">
+                <a href="#" class="text-muted">Show all messages</a>
+            </div>
+        </div>
+    </li>
+</template>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+
+export default {
+    name: "Messages",
+    components: {
+        ...BIcons
+    },
+    props: {
+        messages: {
+            type: Array,
+            default: () => []
+        }
+    },
+    computed: {
+        top_messages() {
+            return this.messages.slice(0, 4);
+        }
+    },
+    methods: {
+        toggleDropdown() {
+            closeAllDropdowns();
+            document.getElementById("messagesDropdown").classList.toggle("show");
+        }
+    }
+}
+</script>
+
+<style scoped>
+
+
+.nav-flag::after, .nav-icon::after {
+    display: none !important;
+}
+
+.nav-flag .feather, .nav-flag svg, .nav-icon .feather, .nav-icon svg {
+    width: 20px;
+    height: 20px;
+}
+
+.nav-flag, .nav-icon {
+  padding: .1rem .8rem;
+  display: block;
+  font-size: 1.5rem;
+  color: #6c757d;
+  transition: background .1s ease-in-out,color .1s ease-in-out;
+  line-height: 1.4;
+}
+</style>

frontend/src/components/Notifications.vue

@@ -0,0 +1,108 @@
+<template>
+    <li class="nav-item dropdown">
+        <a class="nav-icon dropdown-toggle" href="#" @click="toggleDropdown">
+            <div class="position-relative">
+                <b-icon-bell class="bi-valign-middle"></b-icon-bell>
+                <span :class="['indicator', notificationsColor(top_notifications)]">{{
+                        top_notifications.length
+                    }}</span>
+            </div>
+        </a>
+        <div class="dropdown-menu dropdown-menu-lg dropdown-menu-right py-0" id="notificationsDropdown">
+            <div class="dropdown-menu-header">
+                {{ top_notifications.length }} New Notifications
+            </div>
+            <div class="list-group">
+                <a href="#" class="list-group-item" v-for="notification in top_notifications" :key="notification.id">
+                    <div class="row g-0 align-items-center">
+                        <div class="col-2">
+                            <b-icon-exclamation-circle class="bi-valign-middle text-danger"
+                                                       v-if="notification.type === 'error'"></b-icon-exclamation-circle>
+                            <b-icon-info-circle class="bi-valign-middle text-info"
+                                                v-else-if="notification.type === 'info'"></b-icon-info-circle>
+                            <b-icon-check-circle class="bi-valign-middle text-success"
+                                                 v-else-if="notification.type === 'success'"></b-icon-check-circle>
+                            <b-icon-bell class="bi-valign-middle text-warning"
+                                         v-else-if="notification.type === 'warning'"></b-icon-bell>
+                            <b-icon-house class="bi-valign-middle text-primary"
+                                          v-else-if="notification.type === 'login'"></b-icon-house>
+                            <b-icon-person-plus class="bi-valign-middle text-success"
+                                                v-else-if="notification.type === 'friend'"></b-icon-person-plus>
+                        </div>
+                        <div class="col-10">
+                            <div class="text-dark">{{ notification.title }}</div>
+                            <div class="text-muted small mt-1" v-if="notification.msg">{{ notification.msg }}</div>
+                            <div class="text-muted small mt-1">{{ humanizeTime(notification.time) }}</div>
+                        </div>
+                    </div>
+                </a>
+            </div>
+            <div class="dropdown-menu-footer">
+                <a href="#" class="text-muted">Show all notifications</a>
+            </div>
+        </div>
+    </li>
+</template>
+
+<script>
+import {mapGetters, mapMutations} from 'vuex';
+import * as BIcons from "bootstrap-icons-vue";
+import moment from 'moment';
+
+export default {
+    name: 'Notifications',
+    components: {
+        ...BIcons
+    },
+    props: {
+        notifications: {
+            type: Array,
+            default: () => []
+        }
+    },
+    computed: {
+        top_notifications() {
+            return this.notifications.sort((a, b) => {
+                return new Date(b.time) - new Date(a.time);
+            }).slice(0, 8);
+        },
+    },
+    methods: {
+        ...mapMutations([]),
+        humanizeTime(time) {
+            return moment(time).fromNow();
+        },
+        notificationsColor(notifications) {
+            if (notifications.length === 0) {
+                return 'invisible';
+            }
+            if (notifications.filter(n => n.type === 'error').length > 0) {
+                return 'bg-danger';
+            }
+            if (notifications.filter(n => n.type === 'warning').length > 0) {
+                return 'bg-warning';
+            }
+            return 'bg-primary';
+        },
+        toggleDropdown() {
+            closeAllDropdowns();
+            document.getElementById('notificationsDropdown').classList.toggle('show');
+        }
+    },
+    async mounted() {
+    }
+}
+</script>
+
+<style scoped>
+
+
+.nav-flag::after, .nav-icon::after {
+    display: none !important;
+}
+
+.nav-flag .feather, .nav-flag svg, .nav-icon .feather, .nav-icon svg {
+  width: 20px;
+  height: 20px;
+}
+</style>

frontend/src/components/PropertyBadge.vue

@@ -0,0 +1,115 @@
+<template>
+    <div class="input-group" :title="prettyDescription">
+        <label class="input-group-text form-control-inline form-control-sm text-light border-dark bg-dark badge">
+            {{ property.name }} =
+        </label>
+        <input type="number" min="0"
+               class="form-control form-control-inline form-control-sm text-light border-dark bg-dark badge"
+               placeholder="Enter value" @input.prevent="inputChange"
+               :value="localValue" :style="inputStyle"/>
+        <span class="input-group-text form-control-sm text-light border-dark bg-dark badge"
+              v-if="property.unit_symbol" :title="(property.unit_name?property.unit_name:property.unit_symbol)">
+                {{ property.unit_symbol }}
+            </span>
+        <span class="input-group-text form-control-sm text-light border-dark bg-dark badge pl-1">
+            <b-icon-x-circle @click="removeProperty()"></b-icon-x-circle>
+        </span>
+    </div>
+</template>
+
+<style scoped>
+.form-control-inline {
+    display: inline;
+    width: auto;
+}
+
+.input-group {
+    width: initial;
+}
+
+.form-control.badge {
+    border: 0;
+}
+
+.input-group-text.badge {
+    padding: .3rem 0rem;
+}
+
+.input-group .badge:first-child {
+    padding-left: 0.5rem;
+}
+
+.input-group .badge:last-child {
+    padding-right: 0.5rem;
+}
+
+input.badge {
+    --width: 0em;
+    min-height: calc(1.2rem);
+    line-height: 1;
+    min-width: calc(var(--width) + 1.35em + 18px);
+    width: 0;
+    text-align: left;
+}
+
+input[type=number].badge {
+}
+
+input.badge:empty {
+    display: initial;
+}
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+import {mapActions, mapState} from "vuex";
+
+export default {
+    name: "PropertyBadge",
+    components: {
+        ...BIcons
+    },
+    data() {
+        return {
+            localValue: this.property.value
+        }
+    },
+    props: {
+        property: {
+            type: Object,
+            required: true
+        }
+    },
+    property: {
+        prop: "property",
+        event: "modelChange"
+    },
+    computed: {
+        prettyDescription() {
+            var d = this.property.description ? this.property.description : this.property.name
+            if (this.property.unit_name) {
+                d += " (" + this.property.unit_name + ")"
+            }
+            return (d || "").replace(/<[^>]*>?/gm, '')
+        },
+        inputStyle() {
+            const w = this.property.value ? Math.max(1, this.property.value.toString().length) : 1
+            if (this.property.value === undefined) {
+                console.log("No value for property", this.property)
+            }
+            return {
+                "--width": w + "ex"
+            }
+        }
+    },
+    methods: {
+        inputChange(event) {
+            this.localValue = event.target.value
+            this.$emit("modelChange", {...this.property, value: this.localValue})
+        },
+        removeProperty() {
+            this.$emit("remove")
+        }
+    },
+}
+</script>

frontend/src/components/PropertyField.vue

@@ -0,0 +1,91 @@
+<template>
+    <div>
+        <badge-select-field :value="this.splicedValue" :options="this.properties.map(p => p.name)" @addElement="addProperty"
+                            ref="badgeSelect">
+            <template v-slot:default="{option, index}">
+                <PropertyBadge :key="index"
+                               :property="option"
+                               @modelChange="setValue(index, $event)"
+                               @remove="removeProperty(index)"/>
+            </template>
+        </badge-select-field>
+    </div>
+</template>
+
+<style scoped>
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+import {mapActions, mapState} from "vuex";
+import PropertyBadge from "@/components/PropertyBadge.vue";
+//import BadgeSelectField from "@/../extras/components/inputs/BadgeSelectField.vue";
+import BadgeSelectField from "@/components/inputs/BadgeSelectField.vue";
+
+
+export default {
+    name: "PropertyField",
+    components: {
+        BadgeSelectField,
+        PropertyBadge,
+        ...BIcons
+    },
+    props: {
+        value: {
+            type: Array,
+            required: true
+        }
+    },
+    model: {
+        prop: "value",
+        event: "input"
+    },
+    computed: {
+        ...mapState(["properties"]),
+        availableProperties() {
+            if (!this.properties) return [];
+            if (!this.value) return this.properties;
+            return this.properties.filter(property => !this.value.map(p => p.name).includes(property.name));
+        },
+        localValue: {
+            get() {
+                if (!this.value) return [];
+                return this.value;
+            },
+            set(value) {
+                this.$emit("input", value);
+            }
+        },
+        splicedValue() {
+            if (!this.value || !this.properties) return [];
+            return this.value.map(property => {
+                return {
+                    ...this.properties.find(p => p.name === property.name),
+                    value: property.value
+                }
+            })
+        }
+    },
+    methods: {
+        ...mapActions(["fetchProperties"]),
+        addProperty(property) {
+            if (property !== "") {
+                this.localValue.push({name: property, value: 0});
+                this.property = "";
+            }
+        },
+        removeProperty(index) {
+            this.localValue.splice(index, 1);
+        },
+        setValue(index, value) {
+            if (value.target)
+                return;
+            this.localValue[index] = value;
+            return true;
+        }
+    },
+    mounted() {
+        this.fetchProperties();
+    }
+}
+</script>

frontend/src/components/SearchBox.vue

@@ -0,0 +1,63 @@
+<template>
+    <form class="d-none d-sm-inline-block" @submit.prevent="search">
+        <div class="input-group input-group-navbar">
+            <input type="text" class="form-control" placeholder="Search…" aria-label="Search" v-model="query"
+                   ref="search-text"/>
+            <button class="btn" type="button" @click.prevent="search">
+                <b-icon-search class="bi-valign-middle"></b-icon-search>
+            </button>
+        </div>
+    </form>
+</template>
+
+<script>
+
+import * as BIcons from "bootstrap-icons-vue";
+
+export default {
+    name: "SearchBox",
+    components: {
+        ...BIcons
+    },
+    model: {
+        prop: "query",
+        event: "change"
+    },
+    data() {
+        return {
+            query: ""
+        }
+    },
+    methods: {
+        search() {
+            if (this.query.length > 0)
+                this.$router.push("/search/" + encodeURIComponent(this.query));
+            else
+                this.$refs["search-text"].focus();
+        }
+    },
+    watch: {
+        query() {
+            //emit event
+            this.$emit("change", this.query);
+        }
+    },
+    mounted() {
+        //console.log(this.$route)
+        //console.log(this.$route.params.query)
+        this.query = decodeURIComponent(this.$route.params.query || encodeURIComponent(""));
+    }
+}
+</script>
+
+<style scoped>
+
+
+.input-group-navbar .btn, .input-group-navbar .form-control {
+    height: calc(2.0875rem + 2px);
+    background: #f7f7fc;
+    box-shadow: none;
+    border: 0;
+    padding: .35rem .75rem;
+}
+</style>

frontend/src/components/Sidebar.vue

@@ -9,6 +9,48 @@
                 <li class="sidebar-header">
                     Tools & Components
                 </li>
+                <li class="sidebar-item">
+                    <router-link to="/inventory" class="sidebar-link">
+                        <b-icon-archive class="bi-valign-middle"></b-icon-archive>
+                        <span class="align-middle">Inventory</span>
+                    </router-link>
+                </li>
+                <li class="sidebar-item">
+                    <router-link to="/storage-location" class="sidebar-link">
+                        <b-icon-boxes class="bi-valign-middle"></b-icon-boxes>
+                        <span class="align-middle">Storage Locations</span>
+                    </router-link>
+                </li>
+                <li class="sidebar-item">
+                    <router-link to="/workflows" class="sidebar-link">
+                        <b-icon-diagram3 class="bi-valign-middle"></b-icon-diagram3>
+                        <span class="align-middle">Workflows</span>
+                    </router-link>
+                </li>
+                <li class="sidebar-item">
+                    <router-link to="/friends" class="sidebar-link">
+                        <b-icon-people class="bi-valign-middle"></b-icon-people>
+                        <span class="align-middle">Friends</span>
+                    </router-link>
+                </li>
+                <li class="sidebar-item">
+                    <router-link to="/files" class="sidebar-link">
+                        <b-icon-folder class="bi-valign-middle"></b-icon-folder>
+                        <span class="align-middle">Files</span>
+                    </router-link>
+                </li>
+                <li class="sidebar-item">
+                    <router-link to="/admin" class="sidebar-link">
+                        <b-icon-gear class="bi-valign-middle"></b-icon-gear>
+                        <span class="align-middle">Admin</span>
+                    </router-link>
+                </li>
+                <li class="sidebar-item">
+                    <router-link to="/swatch" class="sidebar-link">
+                        <b-icon-gear class="bi-valign-middle"></b-icon-gear>
+                        <span class="align-middle">Swatch</span>
+                    </router-link>
+                </li>
             </ul>
         </div>
     </nav>
@@ -68,6 +110,19 @@ export default {
     flex-grow: 1
 }
 
+.sidebar-link, a.sidebar-link {
+    display: block;
+    padding: .625rem 1.625rem;
+    font-weight: 400;
+    transition: background .1s ease-in-out;
+    position: relative;
+    text-decoration: none;
+    cursor: pointer;
+    color: #e9ecef80;
+    background: #222e3c;
+    border-left: 3px solid transparent;
+}
+
 .sidebar-link i, .sidebar-link svg, a.sidebar-link i, a.sidebar-link svg {
     margin-right: .75rem;
     color: rgba(233, 236, 239, .5)

frontend/src/components/TagField.vue

@@ -0,0 +1,79 @@
+<template>
+    <badge-select-field :value="this.value" :options="this.tags" @addElement="addTag" ref="badgeSelect">
+        <template v-slot:default="{option, index}">
+            <span class="badge bg-dark" @click="removeTag(index)">
+                {{ getNameFromHandle(option) }}
+            </span>
+        </template>
+    </badge-select-field>
+</template>
+
+<style scoped>
+.badge {
+    padding: .3rem .5rem;
+}
+
+.badge:hover {
+    background-color: var(--bs-danger) !important;
+}
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+import {mapActions, mapState, mapGetters} from "vuex";
+//import BadgeSelectField from "@/../extras/components/inputs/BadgeSelectField.vue";
+import BadgeSelectField from "@/components/inputs/BadgeSelectField.vue";
+
+export default {
+    name: "TagField",
+    components: {
+        BadgeSelectField,
+        ...BIcons
+    },
+    props: {
+        value: {
+            type: Array,
+            required: true
+        }
+    },
+    model: {
+        prop: "value",
+        event: "input"
+    },
+    computed: {
+        ...mapState(["tags"]),
+        ...mapGetters(["getNameFromHandle"]),
+        availableTags() {
+            return this.tags.filter(tag => !this.localValue.includes(tag));
+        },
+        localValue: {
+            get() {
+                return this.value;
+            },
+            set(value) {
+                this.$emit("input", value);
+            }
+        }
+    },
+    methods: {
+        ...mapActions(["fetchTags"]),
+        addTag(tag) {
+            if (this.localValue.includes(tag)) {
+                this.localValue.splice(this.localValue.indexOf(tag), 1);
+                this.$refs.badgeSelect.resetSelection();
+            } else if (this.availableTags.includes(tag)) {
+                this.localValue.push(tag);
+                this.$refs.badgeSelect.resetSelection();
+            }else{
+                // input does not match any tag
+            }
+        },
+        removeTag(index) {
+            this.localValue.splice(index, 1);
+        }
+    },
+    mounted() {
+        this.fetchTags();
+    }
+}
+</script>

frontend/src/components/UserDropdown.vue

@@ -0,0 +1,73 @@
+<template>
+    <li class="nav-item dropdown">
+        <a class="nav-icon dropdown-toggle d-inline-block d-sm-none" href="#" @click="toggleDropdown">
+            <i class="align-middle" data-feather="settings"></i>
+            <b-icon-person class="bi-valign-middle"></b-icon-person>
+        </a>
+
+        <a class="nav-link dropdown-toggle d-none d-sm-inline-block" href="#" @click="toggleDropdown">
+            <authenticated-image :src="profilePictureSrc" :owner="username" :alt="username" :title="username"
+                                 img-class="avatar img-fluid rounded mr-1" :width="36" :height="36" fit="cover"/>
+
+        </a>
+
+        <div class="dropdown-menu dropdown-menu-right" id="userDropdown">
+            <div class="dropdown-header">
+                <span class="text-dark">
+                {{ username }}
+            </span>
+            </div>
+            <div class="dropdown-divider"></div>
+            <router-link to="/profile" class="dropdown-item">
+                <b-icon-person class="bi-valign-middle mr-1"></b-icon-person>
+                Profile
+            </router-link>
+            <router-link to="/settings" class="dropdown-item">
+                <b-icon-sliders class="bi-valign-middle mr-1"></b-icon-sliders>
+                Settings &
+                Privacy
+            </router-link>
+            <div class="dropdown-divider"></div>
+            <a class="dropdown-item" href="#" @click="logout"> Log out</a>
+        </div>
+    </li>
+</template>
+
+<script>
+import * as BIcons from 'bootstrap-icons-vue';
+import {mapActions, mapMutations, mapState} from "vuex";
+import AuthenticatedImage from "@/components/AuthenticatedImage.vue";
+
+export default {
+    name: "UserDropdown",
+    components: {
+        AuthenticatedImage,
+        ...BIcons
+    },
+    methods: {
+        ...mapActions(['fetchUserProfile']),
+        ...mapMutations(['logout']),
+        toggleDropdown() {
+            closeAllDropdowns();
+            document.getElementById("userDropdown").classList.toggle("show");
+        }
+    },
+    computed: {
+        ...mapState(['user', 'user_profile']),
+        username() {
+            return this.user;
+        },
+        profilePictureSrc() {
+            return this.user_profile?.profile_picture?.name || null;
+        }
+    },
+    mounted() {
+        if (!this.user_profile) {
+            this.fetchUserProfile();
+        }
+    }
+}
+</script>
+
+<style scoped>
+</style>

frontend/src/components/UserNameTag.vue

@@ -0,0 +1,77 @@
+<template>
+    <div class="d-flex align-items-center">
+        <authenticated-image v-if="profilePictureUrl"
+                             :src="profilePictureUrl"
+                             :owner="displayUsername"
+                             :alt="displayUsername"
+                             :title="displayUsername"
+                             img-class="rounded-circle mr-2"
+                             :width="width"
+                             :height="height"
+                             fit="cover"/>
+        <span>{{ displayUsername }}</span>
+    </div>
+</template>
+
+<script>
+import AuthenticatedImage from "@/components/AuthenticatedImage.vue";
+import {mapGetters, mapActions} from 'vuex';
+
+export default {
+    name: 'UserNameTag',
+    components: {
+        AuthenticatedImage
+    },
+    props: {
+        user: {
+            type: Object,
+            required: true
+        },
+        width: {
+            type: Number,
+            default: 32
+        },
+        height: {
+            type: Number,
+            default: 32
+        }
+    },
+    computed: {
+        ...mapGetters(['allUserProfiles']),
+        displayUsername() {
+            return this.user.username || this.user.owner || '';
+        },
+        profilePictureUrl() {
+            // Check for explicitly set profile picture from allUserProfiles getter
+            const storedProfile = this.allUserProfiles[this.displayUsername];
+            if (storedProfile?.profile_picture?.name) {
+                return storedProfile.profile_picture.name;
+            }
+            return null;
+        }
+    },
+    methods: {
+        ...mapActions(['fetchFriendProfile']),
+        fetchProfileIfNeeded() {
+            // Fetch profile if not already in store
+            if (!this.allUserProfiles[this.displayUsername] && this.displayUsername) {
+                this.fetchFriendProfile({username: this.displayUsername});
+            }
+        }
+    },
+    mounted() {
+        this.fetchProfileIfNeeded();
+    },
+    watch: {
+        displayUsername() {
+            this.fetchProfileIfNeeded();
+        }
+    }
+}
+</script>
+
+<style scoped>
+</style>
+
+
+

frontend/src/components/inputs/BadgeSelectField.vue

@@ -0,0 +1,204 @@
+<template>
+    <div class="input-group">
+        <div class="badge-list form-control form-control-lg" style="position: relative;">
+            <span v-for="(option, index) in value" :key="index">
+                <slot :option="option" :index="index"></slot>
+            </span>
+            <input type="text" class="invisible-input" v-model="textinput" ref="input"
+                   @keydown="keyDown">
+            <ul class="dropdown-menu" style="position: absolute; top: 100%; left: 0; width: 100%; z-index: 100;"
+                v-if="filteredOption.length > 0">
+                <li v-for="(option, index) in filteredOption" :key="index"
+                    @mousedown="chooseOption(option)" @mouseover="selectOption(option)"
+                    :class="{chosen: localValue.includes(option), selected: selectedTag === option, 'dropdown-item': true}">
+                    {{ option }}
+                    <b>
+                        <b-icon-check class="checkmark"></b-icon-check>
+                        <b-icon-x class="cross"></b-icon-x>
+                        <b-icon-plus class="plus"></b-icon-plus>
+                    </b>
+                </li>
+            </ul>
+        </div>
+    </div>
+</template>
+
+<style scoped>
+.badge-list {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.3rem;
+    padding: 0 .25rem;
+}
+
+.badge-list > * {
+    flex: 0 1 auto;
+    padding: .25rem 0;
+}
+
+.badge-list > input.invisible-input {
+    flex: 1 1 auto;
+}
+
+input.invisible-input {
+    border: none;
+    outline: none;
+    color: #495057;
+    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3E%3C/svg%3E");
+    background-repeat: no-repeat;
+    background-position: right .7rem center;
+    background-size: 16px 12px;
+}
+
+.invisible-input:focus ~ .dropdown-menu {
+    display: block;
+}
+
+.dropdown-menu {
+    display: none;
+    overflow-x: auto;
+    max-height: 50vh;
+}
+
+.checkmark, .cross, .plus {
+    display: none;
+}
+
+.dropdown-item.selected {
+    background-color: var(--bs-primary);
+    color: var(--bs-light);
+
+    & .plus {
+        display: inline-block;
+    }
+}
+
+.dropdown-item.chosen {
+    & .checkmark {
+        display: inline-block;
+    }
+}
+
+.dropdown-item.chosen.selected {
+    background-color: var(--bs-danger);
+    color: var(--bs-light);
+
+    & .cross {
+        display: inline-block;
+    }
+
+    & .checkmark, & .plus {
+        display: none;
+    }
+}
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+
+export default {
+    name: "BadgeSelectField",
+    data() {
+        return {
+            textinput: "",
+            selectedTag: ""
+        }
+    },
+    components: {
+        ...BIcons
+    },
+    props: {
+        value: {
+            type: Array,
+            required: true
+        },
+        options: {
+            type: Array,
+            required: true
+        }
+    },
+    model: {
+        prop: "value",
+        event: "addElement"
+    },
+    computed: {
+        availableTags() {
+            return this.options.filter(option => !this.localValue.includes(option));
+        },
+        filteredOption() {
+            return this.options.filter(option => option.includes(this.textinput) || option === this.selectedTag);
+        },
+        localValue: {
+            get() {
+                return this.value;
+            },
+            set(value) {
+            }
+        }
+    },
+    methods: {
+        chooseOption(option) {
+            this.$emit("addElement", option);
+        },
+        resetSelection() {
+            this.textinput = "";
+            this.selectedTag = null;
+        },
+        selectOption(option) {
+            this.selectedTag = option;
+        },
+        keyDown(event) {
+            const key = event.key;
+            if (key === "Enter") {
+                event.preventDefault();
+                this.chooseOption(this.selectedTag);
+                this.$refs.input.blur();
+            } else if (key === "ArrowDown") {
+                event.preventDefault();
+                if (this.selectedTag === "") {
+                    this.selectedTag = this.filteredOption[0];
+                } else {
+                    const index = this.filteredOption.indexOf(this.selectedTag);
+                    if (index < this.filteredOption.length - 1) {
+                        this.selectedTag = this.filteredOption[index + 1];
+                    } else {
+                        this.selectedTag = this.filteredOption[0];
+                    }
+                    setTimeout(() => {
+                        const element = this.$el.querySelector(".selected");
+                        if (element) {
+                            element.scrollIntoView({block: "nearest"});
+                        }
+                    }, 0);
+                }
+            } else if (key === "ArrowUp") {
+                event.preventDefault();
+                if (this.selectedTag === "") {
+                    this.selectedTag = this.filteredOption[this.filteredOption.length - 1];
+                } else {
+                    const index = this.filteredOption.indexOf(this.selectedTag);
+                    if (index > 0) {
+                        this.selectedTag = this.filteredOption[index - 1];
+                    } else {
+                        this.selectedTag = this.filteredOption[this.filteredOption.length - 1];
+                    }
+                    setTimeout(() => {
+                        const element = this.$el.querySelector(".selected");
+                        if (element) {
+                            element.scrollIntoView({block: "nearest"});
+                        }
+                    }, 0);
+                }
+            } else if (key === "ArrowRight") {
+                if (event.target.selectionStart === this.textinput.length) {
+                    event.preventDefault();
+                    this.chooseOption(this.selectedTag);
+                }
+            } else if (key === "Escape") {
+                event.preventDefault();
+                this.$refs.input.blur();
+            }
+        }
+    }
+}
+</script>

frontend/src/components/inputs/CameraFileSource.vue

@@ -0,0 +1,76 @@
+<template>
+    <div class="d-inline-block" v-if="show_camera">
+        <label for="pictures">
+            <slot></slot>
+        </label>
+        <input type="file" accept="image/*" multiple capture="camera" id="pictures" @change="loadFiles" class="d-none">
+    </div>
+</template>
+
+<style scoped>
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+
+export default {
+    name: "CameraFileSource",
+    components: {
+        ...BIcons
+    },
+    emits: ["input"],
+    data() {
+        return {
+            show_camera: false
+        }
+    },
+    methods: {
+        loadFiles() {
+            const files = document.getElementById("pictures").files;
+            const jobs = [...files].map((file) => {
+                return new Promise((resolve, reject) => {
+                    var reader = new FileReader();
+                    reader.onload = () => {
+                        const buffer = reader.result;
+                        if (!(buffer instanceof ArrayBuffer)) {
+                            console.log(buffer)
+                            reject("Not an ArrayBuffer");
+                        }
+                        const data = new Uint8Array(buffer);
+                        const hash = nacl.crypto_hash(data).reduce((a, b) => a + b.toString(16).padStart(2, "0"), "");
+                        var base64 = btoa(
+                            data.reduce((a, b) => a + String.fromCharCode(b), '')
+                        );
+                        resolve({
+                            name: file.name,
+                            size: file.size,
+                            mime_type: file.type,
+                            data: base64,
+                            hash: hash,
+                        });
+                    };
+                    reader.onerror = (e) => {
+                        reject(e);
+                    };
+                    reader.readAsArrayBuffer(file)
+                })
+            });
+            Promise.all(jobs).then((files) => {
+                this.$emit("input", files)
+            })
+        }
+    },
+    mounted() {
+        //detect media api
+        if ('capture' in document.createElement('input')) {
+            console.log('capture supported.');
+            this.show_camera = true;
+        }
+
+        if (navigator.getUserMedia) {
+            console.log('getUserMedia supported.');
+            this.show_camera = true;
+        }
+    }
+}
+</script>

frontend/src/components/inputs/DragDropFileSource.vue

@@ -0,0 +1,88 @@
+<template>
+    <div @dragenter.prevent="dragenter" @dragover.prevent="dragover" @dragleave.prevent="dragleave"
+         @drop.prevent="drop" ref="dropzone">
+        <slot></slot>
+    </div>
+</template>
+
+<style scoped>
+.dragover {
+    opacity: 0.5;
+}
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+
+export default {
+    name: "DragDropFileSource",
+    components: {
+        ...BIcons
+    },
+    emits: ["input"],
+    methods: {
+        dragenter(e) {
+            if (e.dataTransfer.types.includes("Files")) {
+                e.preventDefault()
+                e.stopPropagation()
+                this.$refs.dropzone.classList.add("dragover")
+            }else{
+                console.log(e.dataTransfer.types) //TODO text/uri-list?
+            }
+        },
+        dragover(e) {
+            if (e.dataTransfer.types.includes("Files")) {
+                e.preventDefault()
+                e.stopPropagation()
+                this.$refs.dropzone.classList.add("dragover")
+            }
+        },
+        dragleave(e) {
+            if (e.dataTransfer.types.includes("Files")) {
+                e.preventDefault()
+                e.stopPropagation()
+                this.$refs.dropzone.classList.remove("dragover")
+            }
+        },
+        drop(e) {
+            if (e.dataTransfer.types.includes("Files")) {
+                e.preventDefault()
+                e.stopPropagation()
+                this.$refs.dropzone.classList.remove("dragover")
+                const jobs = [...e.dataTransfer.files].map((file) => {
+                    return new Promise((resolve, reject) => {
+                        let reader = new FileReader();
+                        reader.readAsArrayBuffer(file)
+                        reader.onloadend = () => {
+                            const buffer = reader.result;
+                            if (!(buffer instanceof ArrayBuffer)) {
+                                console.log(buffer)
+                                reject("Not an ArrayBuffer");
+                            }
+                            const data = new Uint8Array(buffer);
+                            const hash = nacl.crypto_hash(data).reduce((a, b) => a + b.toString(16).padStart(2, "0"), "");
+                            var base64 = btoa(
+                                data.reduce((a, b) => a + String.fromCharCode(b), '')
+                            );
+                            resolve({
+                                name: file.name,
+                                size: file.size,
+                                mime_type: file.type,
+                                data: base64,
+                                hash: hash,
+                            });
+                        }
+                        reader.onerror = (e) => {
+                            reject(e)
+                        }
+                    })
+                })
+                Promise.all(jobs).then((files) => {
+                    this.$emit("input", files)
+                    console.log("drop", files)
+                })
+            }
+        }
+    }
+}
+</script>

frontend/src/components/inputs/FsFileSource.vue

@@ -0,0 +1,71 @@
+<template>
+    <div class="d-inline-block">
+        <label :for="inputId">
+            <slot></slot>
+        </label>
+        <input ref="fileInput" type="file" multiple :id="inputId" @change="loadFiles" class="d-none">
+    </div>
+</template>
+
+<style scoped>
+</style>
+
+<script>
+import * as BIcons from "bootstrap-icons-vue";
+
+export default {
+    name: "FsFileSource",
+    components: {
+        ...BIcons
+    },
+    emits: ["input"],
+    data() {
+        return {
+            inputId: `files-${this._uid}`
+        };
+    },
+    methods: {
+        loadFiles() {
+            const files = this.$refs.fileInput?.files;
+            if (!files || files.length === 0) {
+                return;
+            }
+            const jobs = [...files].map((file) => {
+                return new Promise((resolve, reject) => {
+                    var reader = new FileReader();
+                    reader.onload = () => {
+                        const buffer = reader.result;
+                        if (!(buffer instanceof ArrayBuffer)) {
+                            console.log(buffer)
+                            reject("Not an ArrayBuffer");
+                        }
+                        const data = new Uint8Array(buffer);
+                        const hash = nacl.crypto_hash(data).reduce((a, b) => a + b.toString(16).padStart(2, "0"), "");
+                        var base64 = btoa(
+                            data.reduce((a, b) => a + String.fromCharCode(b), '')
+                        );
+                        resolve({
+                            name: file.name,
+                            size: file.size,
+                            mime_type: file.type,
+                            data: base64,
+                            hash: hash,
+                        });
+                    };
+                    reader.onerror = (e) => {
+                        reject(e);
+                    };
+                    reader.readAsArrayBuffer(file)
+                })
+            });
+            Promise.all(jobs).then((files) => {
+                this.$emit("input", files)
+                // Allow selecting the same file again to trigger change.
+                if (this.$refs.fileInput) {
+                    this.$refs.fileInput.value = '';
+                }
+            })
+        }
+    },
+}
+</script>

frontend/src/components/inputs/PreferenceInput.vue

@@ -0,0 +1,168 @@
+<template>
+    <div class="input-group input-group-sm">
+        <div v-if="inputType === 'checkbox'" class="input-group-prepend">
+            <div :class="['input-group-text', 'bg-transparent', showBorder ? 'border-secondary' : 'border-0']">
+                <input
+                    :id="id"
+                    ref="checkboxInput"
+                    type="checkbox"
+                    autocomplete="off"
+                    :checked="isChecked"
+                    :disabled="disabled"
+                    @change="handleCheckboxChange"
+                >
+            </div>
+            <input type="text" class="form-control" value="" disabled style="display: none">
+        </div>
+
+        <select
+            v-else-if="inputType === 'select'"
+            :id="id"
+            class="form-control form-control-sm"
+            :value="displayValue"
+            :disabled="disabled"
+            @change="handleSelectChange"
+        >
+            <option value="">{{ disabled ? '-' : '(not set)' }}</option>
+            <option v-for="option in schema.options || []" :key="option" :value="option">{{ option }}</option>
+        </select>
+
+        <input
+            v-else-if="inputType === 'number'"
+            :id="id"
+            type="number"
+            class="form-control form-control-sm"
+            :value="displayValue"
+            :disabled="disabled"
+            :min="schema.validation_rules ? schema.validation_rules.min : undefined"
+            :max="schema.validation_rules ? schema.validation_rules.max : undefined"
+            :placeholder="disabled ? '' : '(not set)'"
+            @input="handleNumberInput"
+        >
+
+        <input
+            v-else-if="inputType === 'text'"
+            :id="id"
+            type="text"
+            class="form-control form-control-sm"
+            :value="displayValue"
+            :disabled="disabled"
+            :placeholder="disabled ? '' : '(not set)'"
+            @input="handleTextInput"
+        >
+
+        <textarea
+            v-else-if="inputType === 'json'"
+            :id="id"
+            class="form-control form-control-sm"
+            rows="3"
+            style="font-family: monospace; font-size: 0.8rem"
+            :value="jsonDisplayValue"
+            :disabled="disabled"
+            :placeholder="disabled ? '' : '(not set)'"
+            @input="handleJsonInput"
+        ></textarea>
+
+        <div v-if="showClear" class="input-group-append">
+            <button class="btn btn-outline-secondary" type="button" title="Clear preference" @click="handleClear">
+                x
+            </button>
+        </div>
+    </div>
+</template>
+
+<script>
+export default {
+    name: 'PreferenceInput',
+    props: {
+        id: {type: String, required: true},
+        schema: {type: Object, required: true},
+        value: {default: null},
+        disabled: {type: Boolean, default: false},
+    },
+    emits: ['input', 'clear'],
+    computed: {
+        inputType() {
+            const typeMapping = {
+                boolean: 'checkbox',
+                integer: 'number',
+                float: 'number',
+                enum: 'select',
+                string: 'text',
+                json: 'json',
+            }
+            return typeMapping[this.schema.type] || 'text'
+        },
+        isSet() {
+            return this.value !== null && this.value !== undefined
+        },
+        isChecked() {
+            return this.isSet ? Boolean(this.value) : false
+        },
+        showBorder() {
+            return this.inputType === 'checkbox' && this.isSet && !this.disabled
+        },
+        showClear() {
+            return !this.disabled && this.isSet
+        },
+        displayValue() {
+            return this.value ?? ''
+        },
+        jsonDisplayValue() {
+            if (this.value === null || this.value === undefined) {
+                return ''
+            }
+            return typeof this.value === 'object' ? JSON.stringify(this.value, null, 2) : this.value
+        },
+    },
+    mounted() {
+        this.updateCheckboxIndeterminate()
+    },
+    updated() {
+        this.updateCheckboxIndeterminate()
+    },
+    methods: {
+        updateCheckboxIndeterminate() {
+            if (this.inputType !== 'checkbox') {
+                return
+            }
+            const input = this.$refs.checkboxInput
+            if (input) {
+                input.indeterminate = !this.isSet
+            }
+        },
+        handleCheckboxChange(e) {
+            this.$emit('input', e.target.checked)
+        },
+        handleSelectChange(e) {
+            const val = e.target.value
+            this.$emit('input', val === '' ? null : val)
+        },
+        handleNumberInput(e) {
+            const raw = e.target.value
+            const val = raw === '' ? null : parseFloat(raw)
+            this.$emit('input', Number.isNaN(val) ? null : val)
+        },
+        handleTextInput(e) {
+            const val = e.target.value
+            this.$emit('input', val === '' ? null : val)
+        },
+        handleJsonInput(e) {
+            const val = e.target.value.trim()
+            if (val === '') {
+                this.$emit('input', null)
+                return
+            }
+            try {
+                this.$emit('input', JSON.parse(val))
+            } catch {
+                this.$emit('input', val)
+            }
+        },
+        handleClear() {
+            this.$emit('clear')
+        },
+    },
+}
+</script>
+

frontend/src/components/inputs/WebcamFileSource.vue

@@ -0,0 +1,201 @@
+<template>
+    <div class="d-inline-block">
+        <label @click="open">
+            <slot></slot>
+        </label>
+        <div class="modal" :class="{'d-block': show_modal}" tabindex="-1">
+            <div class="modal-dialog modal-fullscreen">
+                <div class="modal-content p-2">
+                    <button type="button" class="btn-close position-absolute fixed-top m-2"
+                            style="right: 1rem; left: auto;"
+                            @click="close"></button>
+                    <div v-if="error" class="alert alert-danger" role="alert">
+                        {{ lastError }}
+                    </div>
+                    <div class="row" v-if="capturing && !streaming">
+                        <div class="spinner-grow text-danger mx-auto" role="status">
+                            <span class="sr-only">Loading...</span>
+                        </div>
+                    </div>
+                    <img
+                        v-if="!capturing && dataImage"
+                        class="img-fluid rounded mx-auto d-block w-75"
+                        :src="dataImage"
+                        alt="Image not available."
+                    />
+                    <video
+                        ref="video"
+                        class="img-fluid rounded d-block img-preview w-75 mx-auto"
+                        :class="{'d-none': !capturing}"
+                    >
+                        Video stream not available.
+                    </video>
+                    <canvas ref="canvas" class="img-fluid d-none img-preview"/>
+                    <div class="position-absolute fixed-bottom text-center">
+                        <div class="btn-group shadow">
+                            <button
+                                class="btn btn-success"
+                                :class="{'disabled': dataImage}"
+                                @click="(!dataImage) && captureVideoImage()">
+                                <b-icon-camera></b-icon-camera>&nbsp;Capture
+                            </button>
+                            <button
+                                class="btn btn-danger"
+                                :class="{'disabled': !dataImage}"
+                                @click="(dataImage) && retake()"
+                            >
+                                <b-icon-trash></b-icon-trash>&nbsp;Retake
+                            </button>
+                            <button
+                                class="btn btn-primary"
+                                :class="{'disabled': !dataImage}"
+                                @click="(dataImage) && save()"
+                            >
+                                <b-icon-save></b-icon-save>&nbsp;Save
+                            </button>
+                        </div>
+                        <select v-model="selectedCamera" v-on:change="onUserSelect"
+                                class="form-select position-relative w-50 mx-auto mb-5 mt-2 shadow"
+                                aria-label="Select Camera Source">
+                            <option disabled value="">Select Camera Source</option>
+                            <option v-for="camera in availableCameras" :key="camera.deviceId" :value="camera">
+                                {{ camera.label }}
+                            </option>
+                        </select>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</template>
+
+<style scoped>
+
+</style>
+
+<script>
+export default {
+    name: "WebcamFileSource",
+    data: () => ({
+        lastError: undefined,
+        error: false,
+        show_modal: false,
+        availableCameras: [],
+        selectedCamera: undefined,
+        capturing: false,
+        streaming: false,
+        stream: undefined,
+        dataImage: undefined
+    }),
+    methods: {
+        async attemptGetUserMedia(constraints) {
+            this.stream = await navigator.mediaDevices.getUserMedia({
+                audio: false,
+                video: constraints
+            }).catch((error) => {
+                console.error(error);
+                if (error.name === "NotAllowedError") this.lastError = "Camera Permission Not Granted";
+                if (error.name === "NotReadableError") this.lastError = "Camera Hardware Error";
+                this.lastError = "Unknown Error"
+            });
+            if (this.stream) this.allowed = true;
+        },
+        async assignStream() {
+            console.log(this.stream.getTracks()[0]);
+            const track = this.stream.getTracks()[0];
+            if (track.getCapabilities) {
+                const capabilities = this.stream.getTracks()[0].getCapabilities();
+            await this.attemptGetUserMedia({
+                deviceId: capabilities.deviceId,
+                width: {ideal: capabilities.width.max},
+                height: {ideal: capabilities.height.max}
+            });
+            }
+            this.capturing = true;
+            this.streaming = false;
+            const {video} = this.$refs;
+            video.srcObject = this.stream;
+            video.addEventListener('canplay', () => {
+                this.streaming = true;
+                localStorage.setItem("WebcamFileSource#previousDevice", this.selectedCamera.deviceId);
+            }, false);
+            await video.play();
+        },
+        closeStream() {
+            if (this.capturing) {
+                this.stream.getTracks().forEach(s => s.stop());
+                this.streaming = false;
+                this.stream = undefined;
+            }
+        },
+        async enumerateCameras() {
+            const devices = await navigator.mediaDevices.enumerateDevices();
+            this.availableCameras = devices.filter(device => device.kind === "videoinput");
+        },
+        async open() {
+            this.show_modal = true;
+            const previousDevice = localStorage.getItem("WebcamFileSource#previousDevice");
+            if (previousDevice) await this.attemptGetUserMedia({deviceId: previousDevice});
+            if (!this.stream) await this.attemptGetUserMedia({facingMode: "environment"});
+            if (!this.stream) await this.attemptGetUserMedia(true);
+            if (!this.stream) this.error = true;
+            await this.enumerateCameras();
+            this.selectedCamera = this.availableCameras.find(({deviceId}) => deviceId === this.stream.getTracks()[0].getSettings().deviceId);
+            await this.assignStream();
+        },
+        async onUserSelect() {
+            this.closeStream();
+            if (!this.dataImage) {
+                await this.attemptGetUserMedia({deviceId: this.selectedCamera.deviceId})
+                await this.assignStream();
+            }
+        },
+        async close() {
+            this.closeStream();
+            this.capturing = false;
+            this.show_modal = false;
+            this.dataImage = undefined;
+        },
+        captureVideoImage() {
+            const {video, canvas} = this.$refs;
+            const context = canvas.getContext('2d');
+            const {videoWidth, videoHeight} = video;
+            canvas.width = videoWidth;
+            canvas.height = videoHeight;
+            context.drawImage(video, 0, 0, videoWidth, videoHeight);
+            this.dataImage = canvas.toDataURL('image/jpeg', 0.5);
+            this.closeStream();
+            this.capturing = false;
+        },
+        retake() {
+            this.dataImage = undefined;
+            this.open();
+        },
+        save() {
+            const mimeType = this.dataImage.split(';')[0].split(':')[1];
+            const data = this.dataImage.split(',')[1];
+            const raw_data = atob(data);
+            const hash = nacl.crypto_hash(raw_data).reduce((a, b) => a + b.toString(16).padStart(2, "0"), "");
+            const image = {
+                name: hash.slice(0, 12) + ".jpg",
+                size: raw_data.length,
+                mime_type: mimeType,
+                data: data,
+                hash: hash,
+            };
+            this.$emit('input', [image]);
+            this.close();
+        }
+    },
+    mounted() {
+        navigator.mediaDevices.addEventListener("devicechange", (event) => {
+            console.log("devicechange");
+            this.enumerateCameras();
+            if (this.availableCameras.findIndex(({deviceId}) => deviceId === this.selectedCamera.deviceId) === -1) {
+                this.closeStream();
+                this.open();
+            }
+        });
+    }
+}
+</script>