tdesktop/Telegram/SourceFiles/mtproto/file_download.cpp

1094 lines
30 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "mtproto/file_download.h"
#include "mainwidget.h"
#include "mainwindow.h"
#include "application.h"
#include "localstorage.h"
namespace {
int32 GlobalPriority = 1;
struct DataRequested {
DataRequested() {
memset(v, 0, sizeof(v));
}
int64 v[MTPDownloadSessionsCount];
};
QMap<int32, DataRequested> DataRequestedMap;
}
struct FileLoaderQueue {
FileLoaderQueue(int32 limit) : queries(0), limit(limit), start(0), end(0) {
}
int32 queries, limit;
FileLoader *start, *end;
};
namespace {
typedef QMap<int32, FileLoaderQueue> LoaderQueues;
LoaderQueues queues;
FileLoaderQueue _webQueue(MaxWebFileQueries);
QThread *_webLoadThread = 0;
WebLoadManager *_webLoadManager = 0;
WebLoadManager *webLoadManager() {
return (_webLoadManager && _webLoadManager != FinishedWebLoadManager) ? _webLoadManager : 0;
}
WebLoadMainManager *_webLoadMainManager = 0;
}
FileLoader::FileLoader(const QString &toFile, int32 size, LocationType locationType, LoadToCacheSetting toCache, LoadFromCloudSetting fromCloud, bool autoLoading)
: _autoLoading(autoLoading)
, _file(toFile)
, _fname(toFile)
, _toCache(toCache)
, _fromCloud(fromCloud)
, _size(size)
, _type(mtpc_storage_fileUnknown)
, _locationType(locationType) {
}
QByteArray FileLoader::imageFormat(const QSize &shrinkBox) const {
if (_imageFormat.isEmpty() && _locationType == UnknownFileLocation) {
readImage(shrinkBox);
}
return _imageFormat;
}
QPixmap FileLoader::imagePixmap(const QSize &shrinkBox) const {
if (_imagePixmap.isNull() && _locationType == UnknownFileLocation) {
readImage(shrinkBox);
}
return _imagePixmap;
}
void FileLoader::readImage(const QSize &shrinkBox) const {
QByteArray format;
switch (_type) {
case mtpc_storage_fileGif: format = "GIF"; break;
case mtpc_storage_fileJpeg: format = "JPG"; break;
case mtpc_storage_filePng: format = "PNG"; break;
default: format = QByteArray(); break;
}
QImage image = App::readImage(_data, &format, false);
if (!image.isNull()) {
if (!shrinkBox.isEmpty() && (image.width() > shrinkBox.width() || image.height() > shrinkBox.height())) {
_imagePixmap = App::pixmapFromImageInPlace(image.scaled(shrinkBox, Qt::KeepAspectRatio, Qt::SmoothTransformation));
} else {
_imagePixmap = App::pixmapFromImageInPlace(std_::move(image));
}
_imageFormat = format;
}
}
float64 FileLoader::currentProgress() const {
if (_complete) return 1.;
if (!fullSize()) return 0.;
return snap(float64(currentOffset()) / fullSize(), 0., 1.);
}
int32 FileLoader::fullSize() const {
return _size;
}
bool FileLoader::setFileName(const QString &fileName) {
if (_toCache != LoadToCacheAsWell || !_fname.isEmpty()) {
return fileName.isEmpty() || (fileName == _fname);
}
_fname = fileName;
_file.setFileName(_fname);
return true;
}
void FileLoader::permitLoadFromCloud() {
_fromCloud = LoadFromCloudOrLocal;
}
void FileLoader::loadNext() {
if (_queue->queries >= _queue->limit) return;
for (FileLoader *i = _queue->start; i;) {
if (i->loadPart()) {
if (_queue->queries >= _queue->limit) return;
} else {
i = i->_next;
}
}
}
void FileLoader::removeFromQueue() {
if (!_inQueue) return;
if (_next) {
_next->_prev = _prev;
}
if (_prev) {
_prev->_next = _next;
}
if (_queue->end == this) {
_queue->end = _prev;
}
if (_queue->start == this) {
_queue->start = _next;
}
_next = _prev = 0;
_inQueue = false;
}
void FileLoader::pause() {
removeFromQueue();
_paused = true;
}
FileLoader::~FileLoader() {
if (_localTaskId) {
Local::cancelTask(_localTaskId);
}
removeFromQueue();
}
void FileLoader::localLoaded(const StorageImageSaved &result, const QByteArray &imageFormat, const QPixmap &imagePixmap) {
_localTaskId = 0;
if (result.type == StorageFileUnknown) {
_localStatus = LocalFailed;
start(true);
return;
}
_data = result.data;
_type = mtpFromStorageType(result.type);
if (!imagePixmap.isNull()) {
_imageFormat = imageFormat;
_imagePixmap = imagePixmap;
}
_localStatus = LocalLoaded;
if (!_fname.isEmpty() && _toCache == LoadToCacheAsWell) {
if (!_fileIsOpen) _fileIsOpen = _file.open(QIODevice::WriteOnly);
if (!_fileIsOpen) {
cancel(true);
return;
}
if (_file.write(_data) != qint64(_data.size())) {
cancel(true);
return;
}
}
_complete = true;
if (_fileIsOpen) {
_file.close();
_fileIsOpen = false;
psPostprocessFile(QFileInfo(_file).absoluteFilePath());
}
emit progress(this);
FileDownload::ImageLoaded().notify();
loadNext();
}
void FileLoader::start(bool loadFirst, bool prior) {
if (_paused) {
_paused = false;
}
if (_complete || tryLoadLocal()) return;
if (_fromCloud == LoadFromLocalOnly) {
cancel();
return;
}
if (!_fname.isEmpty() && _toCache == LoadToFileOnly && !_fileIsOpen) {
_fileIsOpen = _file.open(QIODevice::WriteOnly);
if (!_fileIsOpen) {
return cancel(true);
}
}
FileLoader *before = 0, *after = 0;
if (prior) {
if (_inQueue && _priority == GlobalPriority) {
if (loadFirst) {
if (!_prev) return startLoading(loadFirst, prior);
before = _queue->start;
} else {
if (!_next || _next->_priority < GlobalPriority) return startLoading(loadFirst, prior);
after = _next;
while (after->_next && after->_next->_priority == GlobalPriority) {
after = after->_next;
}
}
} else {
_priority = GlobalPriority;
if (loadFirst) {
if (_inQueue && !_prev) return startLoading(loadFirst, prior);
before = _queue->start;
} else {
if (_inQueue) {
if (_next && _next->_priority == GlobalPriority) {
after = _next;
} else if (_prev && _prev->_priority < GlobalPriority) {
before = _prev;
while (before->_prev && before->_prev->_priority < GlobalPriority) {
before = before->_prev;
}
} else {
return startLoading(loadFirst, prior);
}
} else {
if (_queue->start && _queue->start->_priority == GlobalPriority) {
after = _queue->start;
} else {
before = _queue->start;
}
}
if (after) {
while (after->_next && after->_next->_priority == GlobalPriority) {
after = after->_next;
}
}
}
}
} else {
if (loadFirst) {
if (_inQueue && (!_prev || _prev->_priority == GlobalPriority)) return startLoading(loadFirst, prior);
before = _prev;
while (before->_prev && before->_prev->_priority != GlobalPriority) {
before = before->_prev;
}
} else {
if (_inQueue && !_next) return startLoading(loadFirst, prior);
after = _queue->end;
}
}
removeFromQueue();
_inQueue = true;
if (!_queue->start) {
_queue->start = _queue->end = this;
} else if (before) {
if (before != _next) {
_prev = before->_prev;
_next = before;
_next->_prev = this;
if (_prev) {
_prev->_next = this;
}
if (_queue->start->_prev) _queue->start = _queue->start->_prev;
}
} else if (after) {
if (after != _prev) {
_next = after->_next;
_prev = after;
after->_next = this;
if (_next) {
_next->_prev = this;
}
if (_queue->end->_next) _queue->end = _queue->end->_next;
}
} else {
LOG(("Queue Error: _start && !before && !after"));
}
return startLoading(loadFirst, prior);
}
void FileLoader::cancel() {
cancel(false);
}
void FileLoader::cancel(bool fail) {
bool started = currentOffset(true) > 0;
cancelRequests();
_type = mtpc_storage_fileUnknown;
_complete = true;
if (_fileIsOpen) {
_file.close();
_fileIsOpen = false;
_file.remove();
}
_data = QByteArray();
if (fail) {
emit failed(this, started);
} else {
emit progress(this);
}
_fname = QString();
_file.setFileName(_fname);
loadNext();
}
void FileLoader::startLoading(bool loadFirst, bool prior) {
if ((_queue->queries >= _queue->limit && (!loadFirst || !prior)) || _complete) return;
loadPart();
}
mtpFileLoader::mtpFileLoader(const StorageImageLocation *location, int32 size, LoadFromCloudSetting fromCloud, bool autoLoading)
: FileLoader(QString(), size, UnknownFileLocation, LoadToCacheAsWell, fromCloud, autoLoading)
, _dc(location->dc())
, _location(location) {
LoaderQueues::iterator i = queues.find(MTP::dldDcId(_dc, 0));
if (i == queues.cend()) {
i = queues.insert(MTP::dldDcId(_dc, 0), FileLoaderQueue(MaxFileQueries));
}
_queue = &i.value();
}
mtpFileLoader::mtpFileLoader(int32 dc, const uint64 &id, const uint64 &access, int32 version, LocationType type, const QString &to, int32 size, LoadToCacheSetting toCache, LoadFromCloudSetting fromCloud, bool autoLoading)
: FileLoader(to, size, type, toCache, fromCloud, autoLoading)
, _dc(dc)
, _id(id)
, _access(access)
, _version(version) {
LoaderQueues::iterator i = queues.find(MTP::dldDcId(_dc, 0));
if (i == queues.cend()) {
i = queues.insert(MTP::dldDcId(_dc, 0), FileLoaderQueue(MaxFileQueries));
}
_queue = &i.value();
}
int32 mtpFileLoader::currentOffset(bool includeSkipped) const {
return (_fileIsOpen ? _file.size() : _data.size()) - (includeSkipped ? 0 : _skippedBytes);
}
namespace {
QString serializereqs(const QMap<mtpRequestId, int32> &reqs) { // serialize requests map in json-like format
QString result;
result.reserve(reqs.size() * 16 + 4);
result.append(qsl("{ "));
for (auto i = reqs.cbegin(), e = reqs.cend(); i != e;) {
result.append(QString::number(i.key())).append(qsl(" : ")).append(QString::number(i.value()));
if (++i == e) {
break;
} else {
result.append(qsl(", "));
}
}
result.append(qsl(" }"));
return result;
}
}
bool mtpFileLoader::loadPart() {
if (_complete || _lastComplete || (!_requests.isEmpty() && !_size)) {
if (DebugLogging::FileLoader() && _id) DEBUG_LOG(("FileLoader(%1): loadPart() returned, _complete=%2, _lastComplete=%3, _requests.size()=%4, _size=%5").arg(_id).arg(Logs::b(_complete)).arg(Logs::b(_lastComplete)).arg(_requests.size()).arg(_size));
return false;
}
if (_size && _nextRequestOffset >= _size) {
if (DebugLogging::FileLoader() && _id) DEBUG_LOG(("FileLoader(%1): loadPart() returned, _size=%2, _nextRequestOffset=%3, _requests=%4").arg(_id).arg(_size).arg(_nextRequestOffset).arg(serializereqs(_requests)));
return false;
}
int32 limit = DocumentDownloadPartSize;
MTPInputFileLocation loc;
if (_location) {
loc = MTP_inputFileLocation(MTP_long(_location->volume()), MTP_int(_location->local()), MTP_long(_location->secret()));
limit = DownloadPartSize;
} else {
switch (_locationType) {
case VideoFileLocation:
case AudioFileLocation:
case DocumentFileLocation: loc = MTP_inputDocumentFileLocation(MTP_long(_id), MTP_long(_access), MTP_int(_version)); break;
default: cancel(true); return false; break;
}
}
int32 offset = _nextRequestOffset, dcIndex = 0;
DataRequested &dr(DataRequestedMap[_dc]);
if (_size) {
for (int32 i = 1; i < MTPDownloadSessionsCount; ++i) {
if (dr.v[i] < dr.v[dcIndex]) {
dcIndex = i;
}
}
}
App::app()->killDownloadSessionsStop(_dc);
mtpRequestId reqId = MTP::send(MTPupload_GetFile(loc, MTP_int(offset), MTP_int(limit)), rpcDone(&mtpFileLoader::partLoaded, offset), rpcFail(&mtpFileLoader::partFailed), MTP::dldDcId(_dc, dcIndex), 50);
++_queue->queries;
dr.v[dcIndex] += limit;
_requests.insert(reqId, dcIndex);
_nextRequestOffset += limit;
if (DebugLogging::FileLoader() && _id) DEBUG_LOG(("FileLoader(%1): requested part with offset=%2, _queue->queries=%3, _nextRequestOffset=%4, _requests=%5").arg(_id).arg(offset).arg(_queue->queries).arg(_nextRequestOffset).arg(serializereqs(_requests)));
return true;
}
void mtpFileLoader::partLoaded(int32 offset, const MTPupload_File &result, mtpRequestId req) {
Requests::iterator i = _requests.find(req);
if (i == _requests.cend()) {
if (DebugLogging::FileLoader() && _id) DEBUG_LOG(("FileLoader(%1): request req=%2 for offset=%3 not found in _requests=%4").arg(_id).arg(req).arg(offset).arg(serializereqs(_requests)));
return loadNext();
}
if (result.type() != mtpc_upload_file) {
if (DebugLogging::FileLoader() && _id) DEBUG_LOG(("FileLoader(%1): bad cons received! %2").arg(_id).arg(result.type()));
return cancel(true);
}
int32 limit = (_locationType == UnknownFileLocation) ? DownloadPartSize : DocumentDownloadPartSize;
int32 dcIndex = i.value();
DataRequestedMap[_dc].v[dcIndex] -= limit;
--_queue->queries;
_requests.erase(i);
auto &d = result.c_upload_file();
auto &bytes = d.vbytes.c_string().v;
if (DebugLogging::FileLoader() && _id) DEBUG_LOG(("FileLoader(%1): got part with offset=%2, bytes=%3, _queue->queries=%4, _nextRequestOffset=%5, _requests=%6").arg(_id).arg(offset).arg(bytes.size()).arg(_queue->queries).arg(_nextRequestOffset).arg(serializereqs(_requests)));
if (bytes.size()) {
if (_fileIsOpen) {
int64 fsize = _file.size();
if (offset < fsize) {
_skippedBytes -= bytes.size();
} else if (offset > fsize) {
_skippedBytes += offset - fsize;
}
_file.seek(offset);
if (_file.write(bytes.data(), bytes.size()) != qint64(bytes.size())) {
return cancel(true);
}
} else {
_data.reserve(offset + bytes.size());
if (offset > _data.size()) {
_skippedBytes += offset - _data.size();
_data.resize(offset);
}
if (offset == _data.size()) {
_data.append(bytes.data(), bytes.size());
} else {
_skippedBytes -= bytes.size();
if (int64(offset + bytes.size()) > _data.size()) {
_data.resize(offset + bytes.size());
}
memcpy(_data.data() + offset, bytes.data(), bytes.size());
}
}
}
if (!bytes.size() || (bytes.size() % 1024)) { // bad next offset
_lastComplete = true;
}
if (_requests.isEmpty() && (_lastComplete || (_size && _nextRequestOffset >= _size))) {
if (!_fname.isEmpty() && (_toCache == LoadToCacheAsWell)) {
if (!_fileIsOpen) _fileIsOpen = _file.open(QIODevice::WriteOnly);
if (!_fileIsOpen) {
return cancel(true);
}
if (_file.write(_data) != qint64(_data.size())) {
return cancel(true);
}
}
_type = d.vtype.type();
_complete = true;
if (_fileIsOpen) {
_file.close();
_fileIsOpen = false;
psPostprocessFile(QFileInfo(_file).absoluteFilePath());
}
removeFromQueue();
if (!_queue->queries) {
App::app()->killDownloadSessionsStart(_dc);
}
if (_localStatus == LocalNotFound || _localStatus == LocalFailed) {
if (_locationType != UnknownFileLocation) { // audio, video, document
MediaKey mkey = mediaKey(_locationType, _dc, _id, _version);
if (!_fname.isEmpty()) {
Local::writeFileLocation(mkey, FileLocation(mtpToStorageType(_type), _fname));
}
if (_toCache == LoadToCacheAsWell) {
if (_locationType == DocumentFileLocation) {
Local::writeStickerImage(mkey, _data);
} else if (_locationType == AudioFileLocation) {
Local::writeAudio(mkey, _data);
}
}
} else {
Local::writeImage(storageKey(*_location), StorageImageSaved(mtpToStorageType(_type), _data));
}
}
} else {
if (DebugLogging::FileLoader() && _id) DEBUG_LOG(("FileLoader(%1): not done yet, _lastComplete=%2, _size=%3, _nextRequestOffset=%4, _requests=%5").arg(_id).arg(Logs::b(_lastComplete)).arg(_size).arg(_nextRequestOffset).arg(serializereqs(_requests)));
}
emit progress(this);
if (_complete) {
FileDownload::ImageLoaded().notify();
}
loadNext();
}
bool mtpFileLoader::partFailed(const RPCError &error) {
if (MTP::isDefaultHandledError(error)) return false;
cancel(true);
return true;
}
void mtpFileLoader::cancelRequests() {
if (_requests.isEmpty()) return;
int32 limit = (_locationType == UnknownFileLocation) ? DownloadPartSize : DocumentDownloadPartSize;
DataRequested &dr(DataRequestedMap[_dc]);
for (Requests::const_iterator i = _requests.cbegin(), e = _requests.cend(); i != e; ++i) {
MTP::cancel(i.key());
int32 dcIndex = i.value();
dr.v[dcIndex] -= limit;
}
_queue->queries -= _requests.size();
_requests.clear();
if (!_queue->queries && App::app()) {
App::app()->killDownloadSessionsStart(_dc);
}
}
bool mtpFileLoader::tryLoadLocal() {
if (_localStatus == LocalNotFound || _localStatus == LocalLoaded || _localStatus == LocalFailed) {
return false;
}
if (_localStatus == LocalLoading) {
return true;
}
if (_location) {
_localTaskId = Local::startImageLoad(storageKey(*_location), this);
} else {
if (_toCache == LoadToCacheAsWell) {
MediaKey mkey = mediaKey(_locationType, _dc, _id, _version);
if (_locationType == DocumentFileLocation) {
_localTaskId = Local::startStickerImageLoad(mkey, this);
} else if (_locationType == AudioFileLocation) {
_localTaskId = Local::startAudioLoad(mkey, this);
}
}
}
emit progress(this);
if (_localStatus != LocalNotTried) {
return _complete;
} else if (_localTaskId) {
_localStatus = LocalLoading;
return true;
}
_localStatus = LocalNotFound;
return false;
}
mtpFileLoader::~mtpFileLoader() {
cancelRequests();
}
webFileLoader::webFileLoader(const QString &url, const QString &to, LoadFromCloudSetting fromCloud, bool autoLoading)
: FileLoader(QString(), 0, UnknownFileLocation, LoadToCacheAsWell, fromCloud, autoLoading)
, _url(url)
, _requestSent(false)
, _already(0) {
_queue = &_webQueue;
}
bool webFileLoader::loadPart() {
if (_complete || _requestSent || _webLoadManager == FinishedWebLoadManager) return false;
if (!_webLoadManager) {
_webLoadMainManager = new WebLoadMainManager();
_webLoadThread = new QThread();
_webLoadManager = new WebLoadManager(_webLoadThread);
_webLoadThread->start();
}
_requestSent = true;
_webLoadManager->append(this, _url);
return false;
}
int32 webFileLoader::currentOffset(bool includeSkipped) const {
return _already;
}
void webFileLoader::onProgress(qint64 already, qint64 size) {
_size = size;
_already = already;
emit progress(this);
}
void webFileLoader::onFinished(const QByteArray &data) {
if (_fileIsOpen) {
if (_file.write(data.constData(), data.size()) != qint64(data.size())) {
return cancel(true);
}
} else {
_data = data;
}
if (!_fname.isEmpty() && (_toCache == LoadToCacheAsWell)) {
if (!_fileIsOpen) _fileIsOpen = _file.open(QIODevice::WriteOnly);
if (!_fileIsOpen) {
return cancel(true);
}
if (_file.write(_data) != qint64(_data.size())) {
return cancel(true);
}
}
_type = mtpc_storage_filePartial;
_complete = true;
if (_fileIsOpen) {
_file.close();
_fileIsOpen = false;
psPostprocessFile(QFileInfo(_file).absoluteFilePath());
}
removeFromQueue();
if (_localStatus == LocalNotFound || _localStatus == LocalFailed) {
Local::writeWebFile(_url, _data);
}
emit progress(this);
FileDownload::ImageLoaded().notify();
loadNext();
}
void webFileLoader::onError() {
cancel(true);
}
bool webFileLoader::tryLoadLocal() {
if (_localStatus == LocalNotFound || _localStatus == LocalLoaded || _localStatus == LocalFailed) {
return false;
}
if (_localStatus == LocalLoading) {
return true;
}
_localTaskId = Local::startWebFileLoad(_url, this);
if (_localStatus != LocalNotTried) {
return _complete;
} else if (_localTaskId) {
_localStatus = LocalLoading;
return true;
}
_localStatus = LocalNotFound;
return false;
}
void webFileLoader::cancelRequests() {
if (!webLoadManager()) return;
webLoadManager()->stop(this);
}
webFileLoader::~webFileLoader() {
}
class webFileLoaderPrivate {
public:
webFileLoaderPrivate(webFileLoader *loader, const QString &url)
: _interface(loader)
, _url(url)
, _already(0)
, _size(0)
, _reply(0)
, _redirectsLeft(MaxHttpRedirects) {
}
QNetworkReply *reply() {
return _reply;
}
QNetworkReply *request(QNetworkAccessManager &manager, const QString &redirect) {
if (!redirect.isEmpty()) _url = redirect;
QNetworkRequest req(_url);
QByteArray rangeHeaderValue = "bytes=" + QByteArray::number(_already) + "-";
req.setRawHeader("Range", rangeHeaderValue);
_reply = manager.get(req);
return _reply;
}
bool oneMoreRedirect() {
if (_redirectsLeft) {
--_redirectsLeft;
return true;
}
return false;
}
void setData(const QByteArray &data) {
_data = data;
}
void addData(const QByteArray &data) {
_data.append(data);
}
const QByteArray &data() {
return _data;
}
void setProgress(qint64 already, qint64 size) {
_already = already;
_size = qMax(size, 0LL);
}
qint64 size() const {
return _size;
}
qint64 already() const {
return _already;
}
private:
webFileLoader *_interface;
QUrl _url;
qint64 _already, _size;
QNetworkReply *_reply;
int32 _redirectsLeft;
QByteArray _data;
friend class WebLoadManager;
};
void reinitWebLoadManager() {
#ifndef TDESKTOP_DISABLE_NETWORK_PROXY
if (webLoadManager()) {
webLoadManager()->setProxySettings(App::getHttpProxySettings());
}
#endif // !TDESKTOP_DISABLE_NETWORK_PROXY
}
void stopWebLoadManager() {
if (webLoadManager()) {
_webLoadThread->quit();
DEBUG_LOG(("Waiting for webloadThread to finish"));
_webLoadThread->wait();
delete _webLoadManager;
delete _webLoadMainManager;
delete _webLoadThread;
_webLoadThread = 0;
_webLoadMainManager = 0;
_webLoadManager = FinishedWebLoadManager;
}
}
#ifndef TDESKTOP_DISABLE_NETWORK_PROXY
void WebLoadManager::setProxySettings(const QNetworkProxy &proxy) {
QMutexLocker lock(&_loaderPointersMutex);
_proxySettings = proxy;
emit proxyApplyDelayed();
}
#endif // !TDESKTOP_DISABLE_NETWORK_PROXY
WebLoadManager::WebLoadManager(QThread *thread) {
moveToThread(thread);
_manager.moveToThread(thread);
connect(thread, SIGNAL(started()), this, SLOT(process()));
connect(thread, SIGNAL(finished()), this, SLOT(finish()));
connect(this, SIGNAL(processDelayed()), this, SLOT(process()), Qt::QueuedConnection);
connect(this, SIGNAL(proxyApplyDelayed()), this, SLOT(proxyApply()), Qt::QueuedConnection);
connect(this, SIGNAL(progress(webFileLoader*,qint64,qint64)), _webLoadMainManager, SLOT(progress(webFileLoader*,qint64,qint64)));
connect(this, SIGNAL(finished(webFileLoader*,QByteArray)), _webLoadMainManager, SLOT(finished(webFileLoader*,QByteArray)));
connect(this, SIGNAL(error(webFileLoader*)), _webLoadMainManager, SLOT(error(webFileLoader*)));
connect(&_manager, SIGNAL(authenticationRequired(QNetworkReply*,QAuthenticator*)), this, SLOT(onFailed(QNetworkReply*)));
#ifndef OS_MAC_OLD
connect(&_manager, SIGNAL(sslErrors(QNetworkReply*,const QList<QSslError>&)), this, SLOT(onFailed(QNetworkReply*)));
#endif // OS_MAC_OLD
}
void WebLoadManager::append(webFileLoader *loader, const QString &url) {
loader->_private = new webFileLoaderPrivate(loader, url);
QMutexLocker lock(&_loaderPointersMutex);
_loaderPointers.insert(loader, loader->_private);
emit processDelayed();
}
void WebLoadManager::stop(webFileLoader *loader) {
QMutexLocker lock(&_loaderPointersMutex);
_loaderPointers.remove(loader);
emit processDelayed();
}
bool WebLoadManager::carries(webFileLoader *loader) const {
QMutexLocker lock(&_loaderPointersMutex);
return _loaderPointers.contains(loader);
}
bool WebLoadManager::handleReplyResult(webFileLoaderPrivate *loader, WebReplyProcessResult result) {
QMutexLocker lock(&_loaderPointersMutex);
LoaderPointers::iterator it = _loaderPointers.find(loader->_interface);
if (it != _loaderPointers.cend() && it.key()->_private != loader) {
it = _loaderPointers.end(); // it is a new loader which was realloced in the same address
}
if (it == _loaderPointers.cend()) {
return false;
}
if (result == WebReplyProcessProgress) {
if (loader->size() > AnimationInMemory) {
LOG(("API Error: too large file is loaded to cache: %1").arg(loader->size()));
result = WebReplyProcessError;
}
}
if (result == WebReplyProcessError) {
if (it != _loaderPointers.cend()) {
emit error(it.key());
}
return false;
}
if (loader->already() < loader->size() || !loader->size()) {
emit progress(it.key(), loader->already(), loader->size());
return true;
}
emit finished(it.key(), loader->data());
return false;
}
void WebLoadManager::onFailed(QNetworkReply::NetworkError error) {
onFailed(qobject_cast<QNetworkReply*>(QObject::sender()));
}
void WebLoadManager::onFailed(QNetworkReply *reply) {
if (!reply) return;
reply->deleteLater();
Replies::iterator j = _replies.find(reply);
if (j == _replies.cend()) { // handled already
return;
}
webFileLoaderPrivate *loader = j.value();
_replies.erase(j);
LOG(("Network Error: Failed to request '%1', error %2 (%3)").arg(QString::fromLatin1(loader->_url.toEncoded())).arg(int(reply->error())).arg(reply->errorString()));
if (!handleReplyResult(loader, WebReplyProcessError)) {
_loaders.remove(loader);
delete loader;
}
}
void WebLoadManager::onProgress(qint64 already, qint64 size) {
QNetworkReply *reply = qobject_cast<QNetworkReply*>(QObject::sender());
if (!reply) return;
Replies::iterator j = _replies.find(reply);
if (j == _replies.cend()) { // handled already
return;
}
webFileLoaderPrivate *loader = j.value();
WebReplyProcessResult result = WebReplyProcessProgress;
QVariant statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
int32 status = statusCode.isValid() ? statusCode.toInt() : 200;
if (status != 200 && status != 206 && status != 416) {
if (status == 301 || status == 302) {
QString loc = reply->header(QNetworkRequest::LocationHeader).toString();
if (!loc.isEmpty()) {
if (loader->oneMoreRedirect()) {
sendRequest(loader, loc);
return;
} else {
LOG(("Network Error: Too many HTTP redirects in onFinished() for web file loader: %1").arg(loc));
result = WebReplyProcessError;
}
}
} else {
LOG(("Network Error: Bad HTTP status received in WebLoadManager::onProgress(): %1").arg(statusCode.toInt()));
result = WebReplyProcessError;
}
} else {
loader->setProgress(already, size);
QByteArray r = reply->readAll();
if (!r.isEmpty()) {
loader->addData(r);
}
if (size == 0) {
LOG(("Network Error: Zero size received for HTTP download progress in WebLoadManager::onProgress(): %1 / %2").arg(already).arg(size));
result = WebReplyProcessError;
}
}
if (!handleReplyResult(loader, result)) {
_replies.erase(j);
_loaders.remove(loader);
delete loader;
reply->abort();
reply->deleteLater();
}
}
void WebLoadManager::onMeta() {
QNetworkReply *reply = qobject_cast<QNetworkReply*>(QObject::sender());
if (!reply) return;
Replies::iterator j = _replies.find(reply);
if (j == _replies.cend()) { // handled already
return;
}
webFileLoaderPrivate *loader = j.value();
typedef QList<QNetworkReply::RawHeaderPair> Pairs;
Pairs pairs = reply->rawHeaderPairs();
for (Pairs::iterator i = pairs.begin(), e = pairs.end(); i != e; ++i) {
if (QString::fromUtf8(i->first).toLower() == "content-range") {
QRegularExpressionMatch m = QRegularExpression(qsl("/(\\d+)([^\\d]|$)")).match(QString::fromUtf8(i->second));
if (m.hasMatch()) {
loader->setProgress(qMax(qint64(loader->data().size()), loader->already()), m.captured(1).toLongLong());
if (!handleReplyResult(loader, WebReplyProcessProgress)) {
_replies.erase(j);
_loaders.remove(loader);
delete loader;
reply->abort();
reply->deleteLater();
}
}
}
}
}
void WebLoadManager::process() {
Loaders newLoaders;
{
QMutexLocker lock(&_loaderPointersMutex);
for (LoaderPointers::iterator i = _loaderPointers.begin(), e = _loaderPointers.end(); i != e; ++i) {
Loaders::iterator it = _loaders.find(i.value());
if (i.value()) {
if (it == _loaders.cend()) {
_loaders.insert(i.value());
newLoaders.insert(i.value());
}
i.value() = 0;
}
}
for (auto i = _loaders.begin(), e = _loaders.end(); i != e;) {
LoaderPointers::iterator it = _loaderPointers.find((*i)->_interface);
if (it != _loaderPointers.cend() && it.key()->_private != (*i)) {
it = _loaderPointers.end();
}
if (it == _loaderPointers.cend()) {
if (QNetworkReply *reply = (*i)->reply()) {
_replies.remove(reply);
reply->abort();
reply->deleteLater();
}
delete (*i);
i = _loaders.erase(i);
} else {
++i;
}
}
}
for_const (webFileLoaderPrivate *loader, newLoaders) {
if (_loaders.contains(loader)) {
sendRequest(loader);
}
}
}
void WebLoadManager::sendRequest(webFileLoaderPrivate *loader, const QString &redirect) {
Replies::iterator j = _replies.find(loader->reply());
if (j != _replies.cend()) {
QNetworkReply *r = j.key();
_replies.erase(j);
r->abort();
r->deleteLater();
}
QNetworkReply *r = loader->request(_manager, redirect);
connect(r, SIGNAL(downloadProgress(qint64, qint64)), this, SLOT(onProgress(qint64, qint64)));
connect(r, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onFailed(QNetworkReply::NetworkError)));
connect(r, SIGNAL(metaDataChanged()), this, SLOT(onMeta()));
_replies.insert(r, loader);
}
void WebLoadManager::proxyApply() {
#ifndef TDESKTOP_DISABLE_NETWORK_PROXY
QMutexLocker lock(&_loaderPointersMutex);
_manager.setProxy(_proxySettings);
#endif // !TDESKTOP_DISABLE_NETWORK_PROXY
}
void WebLoadManager::finish() {
clear();
}
void WebLoadManager::clear() {
QMutexLocker lock(&_loaderPointersMutex);
for (LoaderPointers::iterator i = _loaderPointers.begin(), e = _loaderPointers.end(); i != e; ++i) {
if (i.value()) {
i.key()->_private = 0;
}
}
_loaderPointers.clear();
for_const (webFileLoaderPrivate *loader, _loaders) {
delete loader;
}
_loaders.clear();
for (Replies::iterator i = _replies.begin(), e = _replies.end(); i != e; ++i) {
delete i.key();
}
_replies.clear();
}
WebLoadManager::~WebLoadManager() {
clear();
}
void WebLoadMainManager::progress(webFileLoader *loader, qint64 already, qint64 size) {
if (webLoadManager() && webLoadManager()->carries(loader)) {
loader->onProgress(already, size);
}
}
void WebLoadMainManager::finished(webFileLoader *loader, QByteArray data) {
if (webLoadManager() && webLoadManager()->carries(loader)) {
loader->onFinished(data);
}
}
void WebLoadMainManager::error(webFileLoader *loader) {
if (webLoadManager() && webLoadManager()->carries(loader)) {
loader->onError();
}
}
namespace MTP {
void clearLoaderPriorities() {
++GlobalPriority;
}
}
namespace FileDownload {
namespace {
base::Observable<void> ImageLoadedObservable;
} // namespace
base::Observable<void> &ImageLoaded() {
return ImageLoadedObservable;
}
} // namespace FileDownload