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yolobs-studio/UI/win-update/win-update.cpp
Simon Chopin b14f9eae6d New upstream version 23.2.1+dfsg1
2019-07-27 14:47:10 +02:00

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26 KiB
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#include "win-update-helpers.hpp"
#include "update-window.hpp"
#include "remote-text.hpp"
#include "qt-wrappers.hpp"
#include "win-update.hpp"
#include "obs-app.hpp"
#include <QMessageBox>
#include <string>
#include <mutex>
#include <util/windows/WinHandle.hpp>
#include <util/util.hpp>
#include <jansson.h>
#include <blake2.h>
#include <time.h>
#include <strsafe.h>
#include <winhttp.h>
#include <shellapi.h>
using namespace std;
/* ------------------------------------------------------------------------ */
#ifndef WIN_MANIFEST_URL
#define WIN_MANIFEST_URL "https://obsproject.com/update_studio/manifest.json"
#endif
#ifndef WIN_WHATSNEW_URL
#define WIN_WHATSNEW_URL "https://obsproject.com/update_studio/whatsnew.json"
#endif
#ifndef WIN_UPDATER_URL
#define WIN_UPDATER_URL "https://obsproject.com/update_studio/updater.exe"
#endif
static __declspec(thread) HCRYPTPROV provider = 0;
#pragma pack(push, r1, 1)
typedef struct {
BLOBHEADER blobheader;
RSAPUBKEY rsapubkey;
} PUBLICKEYHEADER;
#pragma pack(pop, r1)
#define BLAKE2_HASH_LENGTH 20
#define BLAKE2_HASH_STR_LENGTH ((BLAKE2_HASH_LENGTH * 2) + 1)
#define TEST_BUILD
// Hard coded 4096 bit RSA public key for obsproject.com in PEM format
static const unsigned char obs_pub[] = {
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x42, 0x45, 0x47, 0x49, 0x4e, 0x20, 0x50,
0x55, 0x42, 0x4c, 0x49, 0x43, 0x20, 0x4b, 0x45, 0x59, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x0a, 0x4d, 0x49, 0x49, 0x43, 0x49, 0x6a, 0x41, 0x4e, 0x42,
0x67, 0x6b, 0x71, 0x68, 0x6b, 0x69, 0x47, 0x39, 0x77, 0x30, 0x42, 0x41,
0x51, 0x45, 0x46, 0x41, 0x41, 0x4f, 0x43, 0x41, 0x67, 0x38, 0x41, 0x4d,
0x49, 0x49, 0x43, 0x43, 0x67, 0x4b, 0x43, 0x41, 0x67, 0x45, 0x41, 0x6c,
0x33, 0x73, 0x76, 0x65, 0x72, 0x77, 0x39, 0x48, 0x51, 0x2b, 0x72, 0x59,
0x51, 0x4e, 0x6e, 0x39, 0x43, 0x61, 0x37, 0x0a, 0x39, 0x4c, 0x55, 0x36,
0x32, 0x6e, 0x47, 0x36, 0x4e, 0x6f, 0x7a, 0x45, 0x2f, 0x46, 0x73, 0x49,
0x56, 0x4e, 0x65, 0x72, 0x2b, 0x57, 0x2f, 0x68, 0x75, 0x65, 0x45, 0x38,
0x57, 0x51, 0x31, 0x6d, 0x72, 0x46, 0x50, 0x2b, 0x32, 0x79, 0x41, 0x2b,
0x69, 0x59, 0x52, 0x75, 0x74, 0x59, 0x50, 0x65, 0x45, 0x67, 0x70, 0x78,
0x74, 0x6f, 0x64, 0x48, 0x68, 0x67, 0x6b, 0x52, 0x34, 0x70, 0x45, 0x4b,
0x0a, 0x56, 0x6e, 0x72, 0x72, 0x31, 0x38, 0x71, 0x34, 0x73, 0x7a, 0x6c,
0x76, 0x38, 0x39, 0x51, 0x49, 0x37, 0x74, 0x38, 0x6c, 0x4d, 0x6f, 0x4c,
0x54, 0x6c, 0x46, 0x2b, 0x74, 0x31, 0x49, 0x52, 0x30, 0x56, 0x34, 0x77,
0x4a, 0x56, 0x33, 0x34, 0x49, 0x33, 0x43, 0x2b, 0x33, 0x35, 0x39, 0x4b,
0x69, 0x78, 0x6e, 0x7a, 0x4c, 0x30, 0x42, 0x6c, 0x39, 0x61, 0x6a, 0x2f,
0x7a, 0x44, 0x63, 0x72, 0x58, 0x0a, 0x57, 0x6c, 0x35, 0x70, 0x48, 0x54,
0x69, 0x6f, 0x4a, 0x77, 0x59, 0x4f, 0x67, 0x4d, 0x69, 0x42, 0x47, 0x4c,
0x79, 0x50, 0x65, 0x69, 0x74, 0x4d, 0x46, 0x64, 0x6a, 0x6a, 0x54, 0x49,
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0x39, 0x64, 0x50, 0x55, 0x4b, 0x76, 0x5a, 0x74, 0x67, 0x7a, 0x6a, 0x64,
0x2b, 0x49, 0x7a, 0x6c, 0x48, 0x69, 0x64, 0x48, 0x74, 0x4f, 0x0a, 0x4f,
0x52, 0x42, 0x4e, 0x35, 0x6d, 0x52, 0x73, 0x38, 0x4c, 0x4e, 0x4f, 0x35,
0x38, 0x6b, 0x37, 0x39, 0x72, 0x37, 0x37, 0x44, 0x63, 0x67, 0x51, 0x59,
0x50, 0x4e, 0x69, 0x69, 0x43, 0x74, 0x57, 0x67, 0x43, 0x2b, 0x59, 0x34,
0x4b, 0x37, 0x75, 0x53, 0x5a, 0x58, 0x33, 0x48, 0x76, 0x65, 0x6f, 0x6d,
0x32, 0x74, 0x48, 0x62, 0x56, 0x58, 0x79, 0x30, 0x4c, 0x2f, 0x43, 0x6c,
0x37, 0x66, 0x4d, 0x0a, 0x48, 0x4b, 0x71, 0x66, 0x63, 0x51, 0x47, 0x75,
0x79, 0x72, 0x76, 0x75, 0x64, 0x34, 0x32, 0x4f, 0x72, 0x57, 0x61, 0x72,
0x41, 0x73, 0x6e, 0x32, 0x70, 0x32, 0x45, 0x69, 0x36, 0x4b, 0x7a, 0x78,
0x62, 0x33, 0x47, 0x36, 0x45, 0x53, 0x43, 0x77, 0x31, 0x35, 0x6e, 0x48,
0x41, 0x67, 0x4c, 0x61, 0x6c, 0x38, 0x7a, 0x53, 0x71, 0x37, 0x2b, 0x72,
0x61, 0x45, 0x2f, 0x78, 0x6b, 0x4c, 0x70, 0x43, 0x0a, 0x62, 0x59, 0x67,
0x35, 0x67, 0x6d, 0x59, 0x36, 0x76, 0x62, 0x6d, 0x57, 0x6e, 0x71, 0x39,
0x64, 0x71, 0x57, 0x72, 0x55, 0x7a, 0x61, 0x71, 0x4f, 0x66, 0x72, 0x5a,
0x50, 0x67, 0x76, 0x67, 0x47, 0x30, 0x57, 0x76, 0x6b, 0x42, 0x53, 0x68,
0x66, 0x61, 0x45, 0x4f, 0x42, 0x61, 0x49, 0x55, 0x78, 0x41, 0x33, 0x51,
0x42, 0x67, 0x7a, 0x41, 0x5a, 0x68, 0x71, 0x65, 0x65, 0x64, 0x46, 0x39,
0x68, 0x0a, 0x61, 0x66, 0x4d, 0x47, 0x4d, 0x4d, 0x39, 0x71, 0x56, 0x62,
0x66, 0x77, 0x75, 0x75, 0x7a, 0x4a, 0x32, 0x75, 0x68, 0x2b, 0x49, 0x6e,
0x61, 0x47, 0x61, 0x65, 0x48, 0x32, 0x63, 0x30, 0x34, 0x6f, 0x56, 0x63,
0x44, 0x46, 0x66, 0x65, 0x4f, 0x61, 0x44, 0x75, 0x78, 0x52, 0x6a, 0x43,
0x43, 0x62, 0x71, 0x72, 0x35, 0x73, 0x4c, 0x53, 0x6f, 0x31, 0x43, 0x57,
0x6f, 0x6b, 0x79, 0x6e, 0x6a, 0x4e, 0x0a, 0x43, 0x42, 0x2b, 0x62, 0x32,
0x72, 0x51, 0x46, 0x37, 0x44, 0x50, 0x50, 0x62, 0x44, 0x34, 0x73, 0x2f,
0x6e, 0x54, 0x39, 0x4e, 0x73, 0x63, 0x6b, 0x2f, 0x4e, 0x46, 0x7a, 0x72,
0x42, 0x58, 0x52, 0x4f, 0x2b, 0x64, 0x71, 0x6b, 0x65, 0x42, 0x77, 0x44,
0x55, 0x43, 0x76, 0x37, 0x62, 0x5a, 0x67, 0x57, 0x37, 0x4f, 0x78, 0x75,
0x4f, 0x58, 0x30, 0x37, 0x4c, 0x54, 0x71, 0x66, 0x70, 0x35, 0x73, 0x0a,
0x4f, 0x65, 0x47, 0x67, 0x75, 0x62, 0x75, 0x62, 0x69, 0x77, 0x59, 0x33,
0x55, 0x64, 0x48, 0x59, 0x71, 0x2b, 0x4c, 0x39, 0x4a, 0x71, 0x49, 0x53,
0x47, 0x31, 0x74, 0x4d, 0x34, 0x48, 0x65, 0x4b, 0x6a, 0x61, 0x48, 0x6a,
0x75, 0x31, 0x4d, 0x44, 0x6a, 0x76, 0x48, 0x5a, 0x32, 0x44, 0x62, 0x6d,
0x4c, 0x77, 0x55, 0x78, 0x75, 0x59, 0x61, 0x36, 0x4a, 0x5a, 0x44, 0x4b,
0x57, 0x73, 0x37, 0x72, 0x0a, 0x49, 0x72, 0x64, 0x44, 0x77, 0x78, 0x33,
0x4a, 0x77, 0x61, 0x63, 0x46, 0x36, 0x36, 0x68, 0x33, 0x59, 0x55, 0x57,
0x36, 0x74, 0x7a, 0x55, 0x5a, 0x68, 0x7a, 0x74, 0x63, 0x6d, 0x51, 0x65,
0x70, 0x50, 0x2f, 0x75, 0x37, 0x42, 0x67, 0x47, 0x72, 0x6b, 0x4f, 0x50,
0x50, 0x70, 0x59, 0x41, 0x30, 0x4e, 0x45, 0x4a, 0x38, 0x30, 0x53, 0x65,
0x41, 0x78, 0x37, 0x68, 0x69, 0x4e, 0x34, 0x76, 0x61, 0x0a, 0x65, 0x45,
0x51, 0x4b, 0x6e, 0x52, 0x6e, 0x2b, 0x45, 0x70, 0x42, 0x4e, 0x36, 0x55,
0x42, 0x61, 0x35, 0x66, 0x37, 0x4c, 0x6f, 0x4b, 0x38, 0x43, 0x41, 0x77,
0x45, 0x41, 0x41, 0x51, 0x3d, 0x3d, 0x0a, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x45, 0x4e, 0x44, 0x20, 0x50, 0x55, 0x42, 0x4c, 0x49, 0x43, 0x20, 0x4b,
0x45, 0x59, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x0a
};
static const unsigned int obs_pub_len = 800;
/* ------------------------------------------------------------------------ */
static bool QuickWriteFile(const char *file, const void *data, size_t size)
try {
BPtr<wchar_t> w_file;
if (os_utf8_to_wcs_ptr(file, 0, &w_file) == 0)
return false;
WinHandle handle = CreateFileW(
w_file,
GENERIC_WRITE,
0,
nullptr,
CREATE_ALWAYS,
FILE_FLAG_WRITE_THROUGH,
nullptr);
if (handle == INVALID_HANDLE_VALUE)
throw strprintf("Failed to open file '%s': %lu",
file, GetLastError());
DWORD written;
if (!WriteFile(handle, data, (DWORD)size, &written, nullptr))
throw strprintf("Failed to write file '%s': %lu",
file, GetLastError());
return true;
} catch (string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
return false;
}
static bool QuickReadFile(const char *file, string &data)
try {
BPtr<wchar_t> w_file;
if (os_utf8_to_wcs_ptr(file, 0, &w_file) == 0)
return false;
WinHandle handle = CreateFileW(
w_file,
GENERIC_READ,
FILE_SHARE_READ,
nullptr,
OPEN_EXISTING,
0,
nullptr);
if (handle == INVALID_HANDLE_VALUE)
throw strprintf("Failed to open file '%s': %lu",
file, GetLastError());
DWORD size = GetFileSize(handle, nullptr);
data.resize(size);
DWORD read;
if (!ReadFile(handle, &data[0], size, &read, nullptr))
throw strprintf("Failed to write file '%s': %lu",
file, GetLastError());
return true;
} catch (string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
return false;
}
static void HashToString(const uint8_t *in, char *out)
{
const char alphabet[] = "0123456789abcdef";
for (int i = 0; i != BLAKE2_HASH_LENGTH; ++i) {
out[2 * i] = alphabet[in[i] / 16];
out[2 * i + 1] = alphabet[in[i] % 16];
}
out[BLAKE2_HASH_LENGTH * 2] = 0;
}
static bool CalculateFileHash(const char *path, uint8_t *hash)
try {
blake2b_state blake2;
if (blake2b_init(&blake2, BLAKE2_HASH_LENGTH) != 0)
return false;
BPtr<wchar_t> w_path;
if (os_utf8_to_wcs_ptr(path, 0, &w_path) == 0)
return false;
WinHandle handle = CreateFileW(w_path, GENERIC_READ, FILE_SHARE_READ,
nullptr, OPEN_EXISTING, 0, nullptr);
if (handle == INVALID_HANDLE_VALUE)
throw strprintf("Failed to open file '%s': %lu",
path, GetLastError());
vector<BYTE> buf;
buf.resize(65536);
for (;;) {
DWORD read = 0;
if (!ReadFile(handle, buf.data(), (DWORD)buf.size(), &read,
nullptr))
throw strprintf("Failed to read file '%s': %lu",
path, GetLastError());
if (!read)
break;
if (blake2b_update(&blake2, buf.data(), read) != 0)
return false;
}
if (blake2b_final(&blake2, hash, BLAKE2_HASH_LENGTH) != 0)
return false;
return true;
} catch (string text) {
blog(LOG_DEBUG, "%s: %s", __FUNCTION__, text.c_str());
return false;
}
/* ------------------------------------------------------------------------ */
static bool VerifyDigitalSignature(uint8_t *buf, size_t len, uint8_t *sig,
size_t sigLen)
{
/* ASN of PEM public key */
BYTE binaryKey[1024];
DWORD binaryKeyLen = sizeof(binaryKey);
/* Windows X509 public key info from ASN */
LocalPtr<CERT_PUBLIC_KEY_INFO> publicPBLOB;
DWORD iPBLOBSize;
/* RSA BLOB info from X509 public key */
LocalPtr<PUBLICKEYHEADER> rsaPublicBLOB;
DWORD rsaPublicBLOBSize;
/* Handle to public key */
CryptKey keyOut;
/* Handle to hash context */
CryptHash hash;
/* Signature in little-endian format */
vector<BYTE> reversedSig;
if (!CryptStringToBinaryA((LPCSTR)obs_pub,
obs_pub_len,
CRYPT_STRING_BASE64HEADER,
binaryKey,
&binaryKeyLen,
nullptr,
nullptr))
return false;
if (!CryptDecodeObjectEx(X509_ASN_ENCODING,
X509_PUBLIC_KEY_INFO,
binaryKey,
binaryKeyLen,
CRYPT_ENCODE_ALLOC_FLAG,
nullptr,
&publicPBLOB,
&iPBLOBSize))
return false;
if (!CryptDecodeObjectEx(X509_ASN_ENCODING,
RSA_CSP_PUBLICKEYBLOB,
publicPBLOB->PublicKey.pbData,
publicPBLOB->PublicKey.cbData,
CRYPT_ENCODE_ALLOC_FLAG,
nullptr,
&rsaPublicBLOB,
&rsaPublicBLOBSize))
return false;
if (!CryptImportKey(provider,
(const BYTE *)rsaPublicBLOB.get(),
rsaPublicBLOBSize,
0,
0,
&keyOut))
return false;
if (!CryptCreateHash(provider, CALG_SHA_512, 0, 0, &hash))
return false;
if (!CryptHashData(hash, buf, (DWORD)len, 0))
return false;
/* Windows requires signature in little-endian. Every other crypto
* provider is big-endian of course. */
reversedSig.resize(sigLen);
for (size_t i = 0; i < sigLen; i++)
reversedSig[i] = sig[sigLen - i - 1];
if (!CryptVerifySignature(hash,
reversedSig.data(),
(DWORD)sigLen,
keyOut,
nullptr,
0))
return false;
return true;
}
static inline void HexToByteArray(const char *hexStr, size_t hexLen,
vector<uint8_t> &out)
{
char ptr[3];
ptr[2] = 0;
for (size_t i = 0; i < hexLen; i += 2) {
ptr[0] = hexStr[i];
ptr[1] = hexStr[i + 1];
out.push_back((uint8_t)strtoul(ptr, nullptr, 16));
}
}
static bool CheckDataSignature(const string &data, const char *name,
const char *hexSig, size_t sigLen)
try {
if (sigLen == 0 || sigLen > 0xFFFF || (sigLen & 1) != 0)
throw strprintf("Missing or invalid signature for %s", name);
/* Convert TCHAR signature to byte array */
vector<uint8_t> signature;
signature.reserve(sigLen);
HexToByteArray(hexSig, sigLen, signature);
if (!VerifyDigitalSignature((uint8_t*)data.data(),
data.size(),
signature.data(),
signature.size()))
throw strprintf("Signature check failed for %s", name);
return true;
} catch (string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
return false;
}
/* ------------------------------------------------------------------------ */
static bool FetchUpdaterModule(const char *url)
try {
long responseCode;
uint8_t updateFileHash[BLAKE2_HASH_LENGTH];
vector<string> extraHeaders;
BPtr<char> updateFilePath = GetConfigPathPtr(
"obs-studio\\updates\\updater.exe");
if (CalculateFileHash(updateFilePath, updateFileHash)) {
char hashString[BLAKE2_HASH_STR_LENGTH];
HashToString(updateFileHash, hashString);
string header = "If-None-Match: ";
header += hashString;
extraHeaders.push_back(move(header));
}
string signature;
string error;
string data;
bool success = GetRemoteFile(url, data, error, &responseCode,
nullptr, nullptr, extraHeaders, &signature);
if (!success || (responseCode != 200 && responseCode != 304)) {
if (responseCode == 404)
return false;
throw strprintf("Could not fetch '%s': %s", url, error.c_str());
}
/* A new file must be digitally signed */
if (responseCode == 200) {
bool valid = CheckDataSignature(data, url, signature.data(),
signature.size());
if (!valid)
throw string("Invalid updater module signature");
if (!QuickWriteFile(updateFilePath, data.data(), data.size()))
return false;
}
return true;
} catch (string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
return false;
}
/* ------------------------------------------------------------------------ */
static bool ParseUpdateManifest(const char *manifest, bool *updatesAvailable,
string &notes_str, int &updateVer)
try {
json_error_t error;
Json root(json_loads(manifest, 0, &error));
if (!root)
throw strprintf("Failed reading json string (%d): %s",
error.line, error.text);
if (!json_is_object(root.get()))
throw string("Root of manifest is not an object");
int major = root.GetInt("version_major");
int minor = root.GetInt("version_minor");
int patch = root.GetInt("version_patch");
if (major == 0)
throw strprintf("Invalid version number: %d.%d.%d",
major,
minor,
patch);
json_t *notes = json_object_get(root, "notes");
if (!json_is_string(notes))
throw string("'notes' value invalid");
notes_str = json_string_value(notes);
json_t *packages = json_object_get(root, "packages");
if (!json_is_array(packages))
throw string("'packages' value invalid");
int cur_ver = LIBOBS_API_VER;
int new_ver = MAKE_SEMANTIC_VERSION(major, minor, patch);
updateVer = new_ver;
*updatesAvailable = new_ver > cur_ver;
return true;
} catch (string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
return false;
}
/* ------------------------------------------------------------------------ */
void GenerateGUID(string &guid)
{
BYTE junk[20];
if (!CryptGenRandom(provider, sizeof(junk), junk))
return;
guid.resize(41);
HashToString(junk, &guid[0]);
}
string GetProgramGUID()
{
static mutex m;
lock_guard<mutex> lock(m);
/* NOTE: this is an arbitrary random number that we use to count the
* number of unique OBS installations and is not associated with any
* kind of identifiable information */
const char *pguid = config_get_string(GetGlobalConfig(),
"General", "InstallGUID");
string guid;
if (pguid)
guid = pguid;
if (guid.empty()) {
GenerateGUID(guid);
if (!guid.empty())
config_set_string(GetGlobalConfig(),
"General", "InstallGUID",
guid.c_str());
}
return guid;
}
void AutoUpdateThread::infoMsg(const QString &title, const QString &text)
{
OBSMessageBox::information(App()->GetMainWindow(), title, text);
}
void AutoUpdateThread::info(const QString &title, const QString &text)
{
QMetaObject::invokeMethod(this, "infoMsg",
Qt::BlockingQueuedConnection,
Q_ARG(QString, title),
Q_ARG(QString, text));
}
int AutoUpdateThread::queryUpdateSlot(bool localManualUpdate, const QString &text)
{
OBSUpdate updateDlg(App()->GetMainWindow(), localManualUpdate, text);
return updateDlg.exec();
}
int AutoUpdateThread::queryUpdate(bool localManualUpdate, const char *text_utf8)
{
int ret = OBSUpdate::No;
QString text = text_utf8;
QMetaObject::invokeMethod(this, "queryUpdateSlot",
Qt::BlockingQueuedConnection,
Q_RETURN_ARG(int, ret),
Q_ARG(bool, localManualUpdate),
Q_ARG(QString, text));
return ret;
}
static bool IsFileInUse(const wstring &file)
{
WinHandle f = CreateFile(file.c_str(), GENERIC_WRITE, 0, nullptr,
OPEN_EXISTING, 0, nullptr);
if (!f.Valid()) {
int err = GetLastError();
if (err == ERROR_SHARING_VIOLATION ||
err == ERROR_LOCK_VIOLATION)
return true;
}
return false;
}
static bool IsGameCaptureInUse()
{
wstring path = L"..\\..\\data\\obs-plugins\\win-capture\\graphics-hook";
return IsFileInUse(path + L"32.dll") ||
IsFileInUse(path + L"64.dll");
}
void AutoUpdateThread::run()
try {
long responseCode;
vector<string> extraHeaders;
string text;
string error;
string signature;
CryptProvider localProvider;
BYTE manifestHash[BLAKE2_HASH_LENGTH];
bool updatesAvailable = false;
bool success;
struct FinishedTrigger {
inline ~FinishedTrigger()
{
QMetaObject::invokeMethod(App()->GetMainWindow(),
"updateCheckFinished");
}
} finishedTrigger;
BPtr<char> manifestPath = GetConfigPathPtr(
"obs-studio\\updates\\manifest.json");
auto ActiveOrGameCaptureLocked = [this] ()
{
if (obs_video_active()) {
if (manualUpdate)
info(QTStr("Updater.Running.Title"),
QTStr("Updater.Running.Text"));
return true;
}
if (IsGameCaptureInUse()) {
if (manualUpdate)
info(QTStr("Updater.GameCaptureActive.Title"),
QTStr("Updater.GameCaptureActive.Text"));
return true;
}
return false;
};
/* ----------------------------------- *
* warn if running or gc locked */
if (ActiveOrGameCaptureLocked())
return;
/* ----------------------------------- *
* create signature provider */
if (!CryptAcquireContext(&localProvider,
nullptr,
MS_ENH_RSA_AES_PROV,
PROV_RSA_AES,
CRYPT_VERIFYCONTEXT))
throw strprintf("CryptAcquireContext failed: %lu",
GetLastError());
provider = localProvider;
/* ----------------------------------- *
* avoid downloading manifest again */
if (CalculateFileHash(manifestPath, manifestHash)) {
char hashString[BLAKE2_HASH_STR_LENGTH];
HashToString(manifestHash, hashString);
string header = "If-None-Match: ";
header += hashString;
extraHeaders.push_back(move(header));
}
/* ----------------------------------- *
* get current install GUID */
string guid = GetProgramGUID();
if (!guid.empty()) {
string header = "X-OBS2-GUID: ";
header += guid;
extraHeaders.push_back(move(header));
}
/* ----------------------------------- *
* get manifest from server */
success = GetRemoteFile(WIN_MANIFEST_URL, text, error, &responseCode,
nullptr, nullptr, extraHeaders, &signature);
if (!success || (responseCode != 200 && responseCode != 304)) {
if (responseCode == 404)
return;
throw strprintf("Failed to fetch manifest file: %s", error.c_str());
}
/* ----------------------------------- *
* verify file signature */
/* a new file must be digitally signed */
if (responseCode == 200) {
success = CheckDataSignature(text, "manifest",
signature.data(), signature.size());
if (!success)
throw string("Invalid manifest signature");
}
/* ----------------------------------- *
* write or load manifest */
if (responseCode == 200) {
if (!QuickWriteFile(manifestPath, text.data(), text.size()))
throw strprintf("Could not write file '%s'",
manifestPath.Get());
} else {
if (!QuickReadFile(manifestPath, text))
throw strprintf("Could not read file '%s'",
manifestPath.Get());
}
/* ----------------------------------- *
* check manifest for update */
string notes;
int updateVer = 0;
success = ParseUpdateManifest(text.c_str(), &updatesAvailable, notes,
updateVer);
if (!success)
throw string("Failed to parse manifest");
if (!updatesAvailable) {
if (manualUpdate)
info(QTStr("Updater.NoUpdatesAvailable.Title"),
QTStr("Updater.NoUpdatesAvailable.Text"));
return;
}
/* ----------------------------------- *
* skip this version if set to skip */
int skipUpdateVer = config_get_int(GetGlobalConfig(), "General",
"SkipUpdateVersion");
if (!manualUpdate && updateVer == skipUpdateVer)
return;
/* ----------------------------------- *
* warn again if running or gc locked */
if (ActiveOrGameCaptureLocked())
return;
/* ----------------------------------- *
* fetch updater module */
if (!FetchUpdaterModule(WIN_UPDATER_URL))
return;
/* ----------------------------------- *
* query user for update */
int queryResult = queryUpdate(manualUpdate, notes.c_str());
if (queryResult == OBSUpdate::No) {
if (!manualUpdate) {
long long t = (long long)time(nullptr);
config_set_int(GetGlobalConfig(), "General",
"LastUpdateCheck", t);
}
return;
} else if (queryResult == OBSUpdate::Skip) {
config_set_int(GetGlobalConfig(), "General",
"SkipUpdateVersion", updateVer);
return;
}
/* ----------------------------------- *
* get working dir */
wchar_t cwd[MAX_PATH];
GetModuleFileNameW(nullptr, cwd, _countof(cwd) - 1);
wchar_t *p = wcsrchr(cwd, '\\');
if (p)
*p = 0;
/* ----------------------------------- *
* execute updater */
BPtr<char> updateFilePath = GetConfigPathPtr(
"obs-studio\\updates\\updater.exe");
BPtr<wchar_t> wUpdateFilePath;
size_t size = os_utf8_to_wcs_ptr(updateFilePath, 0, &wUpdateFilePath);
if (!size)
throw string("Could not convert updateFilePath to wide");
/* note, can't use CreateProcess to launch as admin. */
SHELLEXECUTEINFO execInfo = {};
execInfo.cbSize = sizeof(execInfo);
execInfo.lpFile = wUpdateFilePath;
#ifndef UPDATE_CHANNEL
#define UPDATE_ARG_SUFFIX L""
#else
#define UPDATE_ARG_SUFFIX UPDATE_CHANNEL
#endif
if (App()->IsPortableMode())
execInfo.lpParameters = UPDATE_ARG_SUFFIX L" Portable";
else
execInfo.lpParameters = UPDATE_ARG_SUFFIX;
execInfo.lpDirectory = cwd;
execInfo.nShow = SW_SHOWNORMAL;
if (!ShellExecuteEx(&execInfo)) {
QString msg = QTStr("Updater.FailedToLaunch");
info(msg, msg);
throw strprintf("Can't launch updater '%s': %d",
updateFilePath.Get(), GetLastError());
}
/* force OBS to perform another update check immediately after updating
* in case of issues with the new version */
config_set_int(GetGlobalConfig(), "General", "LastUpdateCheck", 0);
config_set_int(GetGlobalConfig(), "General", "SkipUpdateVersion", 0);
config_set_string(GetGlobalConfig(), "General", "InstallGUID",
guid.c_str());
QMetaObject::invokeMethod(App()->GetMainWindow(), "close");
} catch (string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
}
/* ------------------------------------------------------------------------ */
void WhatsNewInfoThread::run()
try {
long responseCode;
vector<string> extraHeaders;
string text;
string error;
string signature;
CryptProvider localProvider;
BYTE whatsnewHash[BLAKE2_HASH_LENGTH];
bool success;
BPtr<char> whatsnewPath = GetConfigPathPtr(
"obs-studio\\updates\\whatsnew.json");
/* ----------------------------------- *
* create signature provider */
if (!CryptAcquireContext(&localProvider,
nullptr,
MS_ENH_RSA_AES_PROV,
PROV_RSA_AES,
CRYPT_VERIFYCONTEXT))
throw strprintf("CryptAcquireContext failed: %lu",
GetLastError());
provider = localProvider;
/* ----------------------------------- *
* avoid downloading json again */
if (CalculateFileHash(whatsnewPath, whatsnewHash)) {
char hashString[BLAKE2_HASH_STR_LENGTH];
HashToString(whatsnewHash, hashString);
string header = "If-None-Match: ";
header += hashString;
extraHeaders.push_back(move(header));
}
/* ----------------------------------- *
* get current install GUID */
string guid = GetProgramGUID();
if (!guid.empty()) {
string header = "X-OBS2-GUID: ";
header += guid;
extraHeaders.push_back(move(header));
}
/* ----------------------------------- *
* get json from server */
success = GetRemoteFile(WIN_WHATSNEW_URL, text, error, &responseCode,
nullptr, nullptr, extraHeaders, &signature);
if (!success || (responseCode != 200 && responseCode != 304)) {
if (responseCode == 404)
return;
throw strprintf("Failed to fetch whatsnew file: %s",
error.c_str());
}
/* ----------------------------------- *
* verify file signature */
if (responseCode == 200) {
success = CheckDataSignature(text, "whatsnew",
signature.data(), signature.size());
if (!success)
throw string("Invalid whatsnew signature");
}
/* ----------------------------------- *
* write or load json */
if (responseCode == 200) {
if (!QuickWriteFile(whatsnewPath, text.data(), text.size()))
throw strprintf("Could not write file '%s'",
whatsnewPath.Get());
} else {
if (!QuickReadFile(whatsnewPath, text))
throw strprintf("Could not read file '%s'",
whatsnewPath.Get());
}
/* ----------------------------------- *
* success */
emit Result(QString::fromUtf8(text.c_str()));
} catch (string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
}
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