The host pages lose their last inline scripts: the overview's charts
(host_graphs.js), the New pool, New network and New interface dialogs
(pool_dialog.js, network_dialog.js, interface_dialog.js), a network's
and a network filter's XML editors and dialogs (network_page.js,
nwfilter_page.js, nwfilters_page.js), the secrets page's labels
(secrets_page.js, its texts from the view as usage_texts) and a pool's
page with the ISO upload (storage_page.js). Their URLs and messages are
data attributes of the elements they belong to; the upload reads its
token and address from its form. No template has an inline script or
an inline event handler any more.
Deleting or detaching a disk, deleting a network card, forcing a VM off,
reverting or deleting a snapshot, stopping or deleting a pool, a
network, an interface, a filter or a secret, and the other actions that
ask first opened the browser's yes/no box (confirm()), and the ISO
upload told its mistakes in the browser's alert().
One dialog in the base page now asks for all of them: its title and
confirming button carry the button's own words, its body the button's
question, the confirming button red for a destructive action. Confirmed,
the button is clicked again, so its form sends what it did before. A
button inside another dialog (the flavors) hides that one while asking
and shows it again after; Cancel gives the focus back, and the
confirming button acts once. The ISO upload's mistakes show in its
dialog's error box, announced.
The host pages' dialogs (new network, fixed address, DHCP range,
bandwidth limit, new interface, new filter, filter rule, filter clone,
new storage pool, new secret, a secret's value) and the VM page's XML
review closed with a grey filled Cancel beside their action; the
redone dialogs use an outlined Cancel, so the action is the one filled
button.
The Add disk, Add network device and bandwidth dialogs of the VM page
set their labels in a narrow column beside the fields and closed with
a grey Close: Add disk split "GB" over two lines and offered an
unexplained Metadata box, its existing-volume pool was a dropdown of
links that wrote a hidden field; the network list prefixed every
choice with "Network" or "Interface"; the bandwidth fields asked for
"kilobytes" where libvirt counts KiB/s and KiB.
Now their labels sit above the fields, tied to them, in two columns.
Add disk is one form whose source, New disk or Existing volume, is a
radio card as in the new VM form, the chosen source's fields shown and
sent and its action taken; the size has a GiB suffix and
"Preallocate metadata (qcow2)", the existing volume's pool is a select
that loads its volumes, the bus and the cache are shared. Add network
device picks its
source from Networks and Interfaces groups and says how its MAC is
filled; the bandwidth limit names its units and when a running VM gets
it. Move says when the host has no other pool and is disabled then.
Every dialog closes with Cancel and its action; the posted fields are
unchanged.
Settings > Network was a table whose fields were read-only inputs cut
off at phone width, an unlabelled "+", three icon buttons per NIC and
a separate QoS table keyed by MAC. The owner chose card layout from
three rendered options, with the QoS limits folding out like the
device details:
- A card per NIC: a VM's only NIC spans the row, two or more sit side
by side from md. Each has its name and target, the link state as a
switch, its source and IPv4 addresses, and "Device details"
(type, MAC, model, NWFilter, IPv6) in a <details>.
- "QoS limits" in a second <details>, its summary naming the limited
directions: a form per inbound or outbound limit, with Save and
Delete limit, and the units.
- Labelled Edit, Add QoS and Delete in the card footer; "Add network
device" by the heading. The edit and add-QoS dialogs are titled and
labelled, and the edit dialog's fields have labels.
The limits come from each NIC of the persistent definition, so the QoS
table, Instance.config_qos and wvmInstance.get_all_qos are removed.
- A DHCP leases card on the page of a network that serves DHCP: each
lease's address, MAC or an IPv6 client's DUID, the host name the client
sent, the VM whose card has that MAC, linked, and when it ends.
- A lease that is a fixed address is marked; any other in one of the
network's DHCP subnets has a Make fixed button that fills in the fixed
address dialog with its address, MAC or DUID and name.
- Leases that cannot be read are said on the card; the rest of the page
stays. A network that does not run has none.
- The VMs on a network are read with the MACs of their cards on it, from
the definitions already read.
Plan reviewed with Codex; libvirt's behaviour checked on a host.
- A filter is not deleted while a VM's interface references it, as the
VM runs or as saved for its next boot (a stopped VM too), or while
another filter references it: libvirt refuses only one a running VM
uses, and a VM using a filter that references a deleted one does not
start. The VMs are read from one listing, one or two XML reads each,
instead of a connection per VM; the refusal names them.
- Create refuses a name or UUID the host has, clone a name in use or
one outside the panel's names, and editing the XML must keep the
filter's name and UUID: each would replace another filter or make a
copy. Entered XML is read for these checks without expanding entities
or taking a DTD (util.parse_xml, shared with the network editor),
and a rule is one <rule> element.
- A rule or reference is deleted only while it reads as the page showed
it, not by index and three attributes: a rule alike in those or a
filter changed meanwhile loses nothing.
- A reference is added only to another filter of the host not
referenced yet; the picker offers those.
- References keep their parameters, in order (a name may repeat); a
rule shows every protocol element it has, a rule without one too.
- One change a POST (two would both start from the page's reading,
the second undoing the first); every change redirects and reports its
refusal as a message, a POST for a filter gone meanwhile going to the
list; the catch-all that showed any error goes, and so does
wvmInstance.get_filterrefs, which only the old delete check used. The list reads each filter's
XML once from one listing; a filter's page reads its XML once and
only the other filters' names; the per-filter XML dialog of the list
goes (a filter's page shows its XML). The XML editors send their text
untouched too.
The label and value rows of the host pages' cards (Overview, storage
pools, networks, interfaces) take Bootstrap's py-1 instead of the list
group's own padding, as the interface list's cards already do: about
half the height a row, the same on every page. A pool's space bar keeps
its padding.
As the storage pages; reviewed with Codex.
- The list is a card per network: its name with Active or Stopped and
Autostart badges, its type (network_mode: Isolated, NAT, Routed,
Open, Bridge, Macvtap, SR-IOV), its device, and each address with
its DHCP range; a bridge or macvtap network's addresses come from
the outside network.
- A network's page: its heading starts or stops it, the menu sets
autostart and deletes a stopped one. A Network card tells its state,
type, bridge or interface, MAC and what the type does; a card per
address (every <ip>, each with its DHCP range dialog, which libvirt
takes on a stopped network); its fixed addresses of every subnet in
one table, searched, each with Edit and Delete, one dialog adding
and editing them; the VMs whose definition names it, connected or
configured, linked (wvmNetwork.get_vms, one domain listing, a VM
undefined meanwhile left out); its
bandwidth limits where libvirt sets them (not on macvtap or SR-IOV
networks), in KiB/s, from the saved definition with a note that a
running network takes them when restarted; its XML in an accordion.
The page reads the running and the saved definition once each, and
only to render itself: its actions, which all redirect, read nothing
of it first.
- The New network dialog is one form, as the New pool one: the type
as radio cards (the radio_card.html include, now shared by both),
the chosen type's fields only, IPv6 with its box, a bridge or
interface suggested from the host's (get_host_interfaces, not the
bridges libvirt made for its own networks); a refused network or
one libvirt refuses opens the dialog again with what was entered,
the reasons beside the fields and focus on the first.
- What the New pool and New network dialogs share is one script,
static/js/choice_dialog.js: the radio cards show their fieldsets
(data-kinds) and a refused form opens again focused on its first
refused field; each dialog keeps only its own changes.
- The fixed-address dialogs per family go to the page's own dialog.
Reviewed with Codex against libvirt's network format and driver.
- Addresses: wvmNetwork found a network's <ip> by its text, so one
written as <ip .../> or <ip><dhcp>... without whitespace had none,
and a second address of a family overwrote the first. ip_networks
reads every <ip> in order, its index being libvirt's parentIndex:
family (ipv4 when written), address, subnet, DHCP (a <dhcp>, also
with fixed addresses only), first range and fixed addresses. The
parentIndex was guessed from the number of families, wrong when IPv6
comes first; changes now name the address by its index.
- One read: the page read the network's XML once per getter, ten or
more round trips; it reads it once (a cached_property of the
request's wvmNetwork). A change starts from the saved definition
read anew (VIR_NETWORK_XML_INACTIVE), not the running one: two QoS
changes on a running network no longer undo the first. The XML
editor shows and changes the saved definition, and defines this
network only (its name, and its UUID if given), read for that with
no entity expanded and handed to libvirt as written; an XML declaring
its encoding is taken. The actions go back to the network's page by
its own URL.
- Fixed addresses are found by the address they had (a hidden field),
not by the editable box: changing it and pressing Delete deleted
another entry or none. A change deletes the entry and adds it anew
from a copy, keeping what the page does not show (a client id, a
lease), and puts it back if the add fails: libvirt's own change
finds an entry by any of its MAC, address or name, so it could
replace another entry, and never by an IPv6 DUID. The address must
be of the subnet, not the host's, and neither it, the MAC or DUID
nor the name another entry's; an entry gone meanwhile is refused,
not added anew; an unchanged one writes no audit row. They can be
added while the network is stopped; a running network saved with
other addresses than it runs with is not changed live, as
parentIndex would name another <ip> of it.
- An address without a netmask or prefix takes libvirt's (IPv4 its
class's, IPv6 /64), for its checks and the overlap check.
- The DHCP range must be in the subnet, in order and not take in the
host's address.
- The create form takes a known mode only ("bogus" made an isolated
network, a missing one a server error); NAT and routed networks need
an IPv4 subnet, an isolated one may have none, a bridge or macvtap
network needs its bridge or interface and gets no addresses; IPv6
only with its box (whose value was "false", so never); no name or
subnet of another network of the host. "Fixed Addresses" at create
goes: it made a random-MAC entry for every address of the range,
for no real VM.
- Refusals of a fixed address, the DHCP range, the XML and a QoS
removal are messages, not server errors.
- The IPv6 forwarding of a bridge or macvtap network is the outside
network's, not ROUTE.
- get_networks_info reads each network's XML once and gives its
autostart and addresses too. Unused can_pxe, DHCP lease helpers,
get_uuid and the per-family range and host getters go.
Three upstream rules in webvirtcloud.css set every page's layout
against Bootstrap 5.3:
- .container { max-width: 900px } held each page to 900px at any
screen width, below Bootstrap's own widths. Pages now take
Bootstrap's container widths up to its lg one, 960px, and stop
there on wider screens: its xl and xxl widths (1140px, 1320px) leave
the panel's forms and lists too wide;
- .page-header (margins of 5px 5px 20px 20px) put headings 20px right
of the content under them; its 14 uses are mb-3, flush with the
content (one carried Bootstrap 4's mr-auto, now me-auto);
- p { margin: 10px } indented every paragraph 10px from the content
beside it; paragraphs take Bootstrap's own bottom margin.
webvirtcloud.css keeps only what Bootstrap has no utility for: the
page width cap, the XML editor's place and height, the Tom Select
colour fix, the sortable table headers' arrows, the grouped VM list's
collapsed hosts and the charts' height.
webvirtcloud.css still carried the upstream panel's rules for what
Bootstrap 5.3 has as utilities and components:
- the page's bottom space (body padding) is pb-5 on base.html's body,
and the console page no longer has to undo it;
- the VM page's action tabs (.action-button, .action-block with a
fixed 65px width) are text-center with a d-block icon; its tab panes
(#power ... #undefine, one rule each) mt-3;
- the bordered sub-tab panes (.tab-pane-bordered, a fixed #eee border
that dark themes could not change) border border-top-0 p-3;
- the search box and header buttons (.search, .btn-header) m-1 and
mt-1; the SSH key select (.keyselect) a form-select;
- the boot order list (.multipleselect, fixed size, #c0c0c0 border) a
list-group of form-check-input items; its unused .multipleselect-on
goes;
- table cells centred by a global rule are align-middle on each table.
Two rules against Bootstrap's behaviour go: menus opened on hover on
wide screens (Bootstrap opens them on a click, and keyboard and touch
users had no hover), and "a { outline: 0 }", which hid the keyboard
focus ring.
The paragraph and page-header margins and the 900px container stay
for a separate change: they set every page's layout.
Eleven host pages (overview, instances, storages, networks, interfaces,
nwfilters, secrets and their item pages) each carried their own copy of
the links to the host's sections, as a breadcrumb: the sections are
siblings, not a path, and on a phone the separators were left at the
start of wrapped lines. The item pages marked no section at all.
computes/host_nav.html is the one nav, labelled "Host sections": pills
that wrap, the page's section marked active, with aria-current="page"
on the section's own page and "true" on an item of it.
- A network created with fixed addresses gets one per address of its DHCP
range for any subnet; the old prefix cut assumed a gateway ending in .1
and built addresses such as 10.0.0.1.130. Fixed addresses need a /24 or
smaller subnet.
- A new network that does not start (its subnet is in use) is undefined
again, so the name is free for another try.
- Fixed addresses are changed and deleted on a stopped network too: the
running network is changed only while it runs. A host with only a name
is deleted as defined, not with an empty MAC, shows no "None", and has no
edit button it could not use.
- The create dialog disables the fields it hides, so an IPv6 subnet typed
and then unchecked is not created, and switching from MACVTAP back to
BRIDGE restores the bridge label and the Open vSwitch option.
- Isolated networks show QoS; QoS save buttons no longer raise a script
error; saving an unchanged fixed address says so; two messages lose a
stray backslash and spaces.
Follow-ups from the review of the audit log layers:
- Blocking a user who is already blocked, or unblocking one who is
not, changes nothing and now writes no row, like any other edit
that changes nothing.
- write_chunk takes the request instead of the user and an optional
request; the view always had one, so the branch only tests used
is gone and every chunk 0 goes through the same audited submit.
- Tests: a busy clone creates no job and its row carries the page's
message; a later chunk that fails writes no submit row; libvirt
refusing a network or pool delete is a failed row.
The create forms of networks and storage pools checked the new name
against the host's list of networks or pools, but that list holds one
dict per object, so the name never matched and the check never fired;
libvirt refused the duplicate with its own wording. The check now
compares names: the page shows its own message, nothing is sent to
libvirt, and the Logs page gets a failed row "...: add: name already
in use".
The Logs page now records every change an admin makes to a compute's
libvirt objects, with the compute's name in the host column:
- networks: add, start, stop, delete, autostart, DHCP range, fixed
addresses, QoS and XML edits;
- storage pools: add, start, stop, delete, autostart, from web and
API; volumes: add and delete (web and API), clone and ISO upload;
- host interfaces: add, start, stop, delete;
- secrets: add, set value (never the value), delete;
- network filters: add, clone, delete, XML edits, rules and
references.
A refused or failed change is a failed row with its reason (libvirt
text through safe_text). The volume clone and upload jobs write their
row when they end; a refused submission is a failed row at once. A
volume row names the volume libvirt created (a dir pool adds .qcow2 or
.img). Volume create or delete through the API on an inactive pool
(409) is a failed row.
Network filters: the rows read "Network filter f1: add" instead of
"f1 network filter is created", and their host is the compute's name
instead of its hostname. A duplicate name or UUID no longer raises a
bare exception, and a filter XML that cannot be parsed no longer ends
in UnboundLocalError.
On a running network the change did nothing, yet the page said the
range was changed; a network without a range or an unknown address
family ended in a server error. Each is refused now with the reason:
stop the network first, or the network has no such range.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Stopping a network cut the running VMs on it off, deleting one or a
secret kept the VMs that name it from starting, and stopping a pool
took the disks of running VMs away, all without a word. Each is now
refused with the VMs (and, for a secret, the pools) that need it:
stopping while a running VM uses it, deleting while a VM's definition
names it. A disk given by its file path does not need its pool's
definition. The API's pool stop is refused the same way.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Twenty-five prompts asked only "Are you sure?", and on the storage page
one handler asked the same before every button, Start and Enable
included. Each destructive button now names its object and says what
happens: a stopped network cuts running VMs off, a deleted pool keeps
its files, a deleted volume loses its data, a reverted snapshot loses
the changes made since. Saves no longer ask, and disabled buttons lose
prompts they could not show. The VM QoS messages said to restart the
network where the VM has to be powered off and on.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Column offsets without a breakpoint applied below it, where the column
is already full width, so the change password, compute, user, VM
create and VM settings forms ran past the right edge on a phone. Each
offset now starts at its column's breakpoint. The interface and network
detail lists were rows directly inside rows and sit in a column now;
the compute form loses a Bootstrap 3 thumbnail padding that broke its
gutters, and the add-rule dialog's hint is no longer cut off. The page
test checks both grid rules on every page.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Twenty tables had no .table-responsive wrapper, so on a phone the user
list, compute list, VM lists, network and network filter pages scrolled
sideways as a whole. Each table now scrolls inside its box, as the
other ten already did. The page test walks the network page too, and
checks that every table on every page has the wrapper.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The pool, network and interface cards had a solid green or red header
with light text, and status words (Connected, ON, OFF, the DRBD state)
were in the theme's green or red text colour. axe found them below the
WCAG AA 4.5:1 contrast on the live theme (4.29:1, 3.52:1), on the
default zephyr theme, whose green is light (2.5:1), and on dark themes
(darkly 1.18:1).
The card headers, and the status words as badges, are now the theme's
pale status background with its dark status text (bg-*-subtle with
text-*-emphasis). Bootstrap derives the pair from each theme's palette,
and it does not depend on the page's background: the dark Bootswatch
themes keep light-mode emphasis colours, which on their own would be
dark text on a dark page. The card border keeps the status colour.
A network's QoS form whose rate was not a whole number (abc, 1.5) made
wvmNetwork.set_qos raise a ValueError that the view did not catch: the
request ended in a server error. The page's pattern stops this in a
browser, but the server must refuse it too. set_qos now says "QoS rates
must be whole numbers", and the view reports that, as it does a libvirt
error, and goes back to the network's page.
The create-network form only checked the characters of its subnets, so
192.0.2.0/33 or 999.0.2.0/24 passed and network_size raised a
ValueError: the user got a server error instead of a message. So did a
subnet too small for the gateway, DHCP range and broadcast address that
network_size derives (0.0.0.0/32, 255.255.255.255/32), and 192.0.2.0/31
or a bare address gave an inverted DHCP range.
Each subnet field now parses its value as a network of its IP version
and refuses it with a field error otherwise. An IPv4 prefix must be /30
or shorter; the IPv6 prefix must be /64, which the view checked after
the form and now the form does.
An accessibility scan of the pages on a real host (the earlier scans ran
on libvirt's test driver) found unnamed elements the test driver never
renders: the network page's add fixed address buttons and their dialog
fields, the XML box of each nwfilter's details dialog and the convert
checkbox of the volume clone dialog. The buttons get a title, the labels
a for= and the fields an id, the XML box an aria-label.
The MAC field's pattern ([0-9/:]+) had no hex letters, so the browser
refused nearly every MAC address (52:54:00🆎cd:ef) and no IPv4 fixed
address could be added from the page. The host name field of both
dialogs ([a-zA-Z0-9_]+) refused names such as web-01 or db.lan. The MAC
takes hex digits and ":", the name letters, digits, "_", "." and "-";
the server already escapes both into the network XML.
An accessibility scan with every modal opened found 49 fields without a
name: the labels of the instance create forms (custom, template and each
flavor's modal), the interface, network, secret and storage pool modals
did not point at their fields. Each label now has a for= and its field an
id, prefixed per form (and per flavor), so a click on the label focuses
the field too. The "Advanced" collapse buttons and the memory and
processing bars are named.
The VCPU config select had id="vcpu_mode" in each of these forms, nine
times on the create page; the unique-ID test did not see it as the test
driver reports no CPU modes. The id goes (nothing used it), and the test
now renders that branch.
An accessibility scan (axe-core, WCAG 2 A/AA) of every page found 87
elements without a name. Icon-only buttons and links (the navbar's
administration menu on every page, the add/create buttons, the flavor
delete and back buttons) get a title, which is also their tooltip; the
labels of the language, architecture, chipset and filter selects point
at them; the memory bar is named. The shared delete confirmation page
had an empty <title> and heading, as no view passes "title": it says
"Delete <object>". The power-off form's aria-label was misspelled.
Rendered through every URL on libvirt's test driver, the pages had
duplicate IDs and markup browsers repaired silently:
- Each flavor modal's "Advanced" button toggled #flav-add-collapse, the
first modal's section; every modal now has its own. The flavor and
template copies of the custom tab's control IDs, and the template
tab's unused images input, are gone.
- The VM page's action icons and the XML editors were styled by
repeated IDs; they use classes.
- Modal forms opened inside modal-body and closed after modal-footer;
they wrap both. Stray end tags and duplicate attributes are removed,
paragraphs no longer hold modals or rows, table heads have a row, and
the create page closes its row and column.
- html lang is the active language instead of "en".
A test walks every URL as a superuser and fails on a repeated ID. The
console page still has no doctype: its full-height layout relies on
quirks mode and needs its own check.
131 test modules sat next to the code they test; instances alone had
51 of them beside views.py and utils.py. They move into a
tests/ package per app, and the JavaScript checks into
webvirtcloud/tests/js. Each non-empty tests.py becomes tests/test_views.py;
the empty generated stubs are removed.
Imports of the app's own modules become absolute, paths built from
__file__ go one level up, the live helper is instances.tests.livetest,
and coverage omits */tests/*. The suite discovers the same 960 tests as
before.
Four lookups built XPath expressions from values that come from
requests (CodeQL py/xpath-injection, plus get_capabilities, which
CodeQL did not flag; the pages are for superusers):
- The architecture in the create wizard's URLs went into
arch[@name='...'] in get_emulator, get_machine_types and
get_capabilities: "nope' or '1'='1" matched every architecture. It is
now an XPath variable ($arch), which is never parsed as XPath.
- Network filter rules were found with a predicate built from the
posted action, direction and priority: a quote raised SyntaxError (an
error page). The rule is now found by comparing its attributes.
- unset_qos put the posted direction into the path, so "*" removed
every bandwidth setting. It accepts inbound and outbound, as set_qos
does; the network page shows an error for anything else.
No other XPath in vrtManager is built from a value; the remaining
expressions are constants. The tests fail on the previous code.
Super-linter ran from the unpinned :latest image and, because of
branches-ignore: [master], never on pull requests to master. Ruff now
checks syntax errors and pyflakes rules (E9, F) on every push and PR.
Fixes the existing findings: unused imports and variables, an unused
duplicate import in instances/tests.py, and the star import in
accounts/views.py. settings-dev.py keeps its star import of the base
settings.
- Routers use path converters (use_regex_path=False): computes, instances
and flavors take <int:...> ids, so non-numeric ids get 404 and
drf-spectacular derives the parameter types itself.
- Each method declares what it really returns: detail serializers,
a shared StatusSerializer for status-only replies, no request body for
actions. Instance properties used by the details serializer get return
type hints.
- The create-instance API drops the firmware field. Its only accepted
value was "" (BIOS), which produced an empty, invalid enum, and the
UEFI branch behind it was unreachable. Clients that still send it are
unaffected; DRF ignores unknown fields.
The schema now passes spectacular --validate --fail-on-warn; a test
keeps it that way.
- Computes API: mark password as write_only in ComputeSerializer, restrict ComputeViewSet and architectures to IsAdminUser.
- Instances API: enforce user ownership tenant isolation in InstanceViewSet.list, restrict MigrateViewSet and CreateInstanceViewSet to IsAdminUser, require IsAdminUser for mutating FlavorViewSet.
- Storage, Network, and Interface APIs: restrict StorageViewSet, VolumeViewSet, NetworkViewSet, InterfaceViewSet to IsAdminUser.
- AppSettings & NWFilters: protect appsettings and nwfilter views with @superuser_only (403 Forbidden for non-superusers).
- noVNC Console: sign tokens with TimestampSigner (salt='console.novnc', max_age=600), verify signature and user authorization in novncd with backward-compatible fallback for debug/test mode.
- Accounts: avoid hardcoded default admin password; generate cryptographically secure random password unless ADMIN_PASSWORD is set (preserve 'admin' in test runner).
- gstfsd daemon: bind to 127.0.0.1 by default instead of 0.0.0.0.
- Tests: added comprehensive test coverage for API security, token expiration/rejection, and view permissions (132 tests passing).
* Add rest framework for API: First Commit
* modify some shell scripts to make variable references safer; modify some python scripts to reduce the code complexity and cyclomatic complexity of functions.
* Add REST API for some webvirtcloud functions. Instance list/delete/create, compute list/delete/create, storages-network list/retrieve. Add swagger and redoc for API interface
* update requirements
Co-authored-by: herengui <herengui@uniontech.com>