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Add encrypted file download

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This commit is contained in:
Nicolas Werner 2019-12-03 02:26:41 +01:00
parent 6c2ec3fe67
commit b8f6e4ce64
9 changed files with 209 additions and 171 deletions
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4
deps/CMakeLists.txt vendored
View file

@ -46,10 +46,10 @@ set(BOOST_SHA256
set(
MTXCLIENT_URL
https://github.com/Nheko-Reborn/mtxclient/archive/6eee767cc25a9db9f125843e584656cde1ebb6c5.tar.gz
https://github.com/Nheko-Reborn/mtxclient/archive/f719236b08d373d9508f2467bbfc6dfa953b1f8d.zip
)
set(MTXCLIENT_HASH
72fe77da4fed98b3cf069299f66092c820c900359a27ec26070175f9ad208a03)
0660756c16cf297e02b0b29c07a59fc851723cc65f305893ae7238e6dd2e41c8)
set(
TWEENY_URL
https://github.com/mobius3/tweeny/archive/b94ce07cfb02a0eb8ac8aaf66137dabdaea857cf.tar.gz

2
resources/qml/TimelineRow.qml
View file

@ -97,7 +97,7 @@ RowLayout {
MenuItem {
visible: model.type == MtxEvent.ImageMessage || model.type == MtxEvent.VideoMessage || model.type == MtxEvent.AudioMessage || model.type == MtxEvent.FileMessage || model.type == MtxEvent.Sticker
text: qsTr("Save as")
onTriggered: timelineManager.saveMedia(model.url, model.filename, model.mimetype, model.type)
onTriggered: timelineManager.timeline.saveMedia(model.id)
}
}
}

2
resources/qml/delegates/FileMessage.qml
View file

@ -31,7 +31,7 @@ Rectangle {
}
MouseArea {
anchors.fill: parent
onClicked: timelineManager.saveMedia(model.url, model.filename, model.mimetype, model.type)
onClicked: timelineManager.timeline.saveMedia(model.id)
cursorShape: Qt.PointingHandCursor
}
}

2
resources/qml/delegates/ImageMessage.qml
View file

@ -17,7 +17,7 @@ Item {
MouseArea {
enabled: model.type == MtxEvent.ImageMessage
anchors.fill: parent
onClicked: timelineManager.openImageOverlay(model.url, model.filename, model.mimetype, model.type)
onClicked: timelineManager.openImageOverlay(model.url, model.id)
}
}
}

4
resources/qml/delegates/PlayableMediaMessage.qml
View file

@ -97,7 +97,7 @@ Rectangle {
anchors.fill: parent
onClicked: {
switch (button.state) {
case "": timelineManager.cacheMedia(model.url, model.mimetype); break;
case "": timelineManager.timeline.cacheMedia(model.id); break;
case "stopped":
media.play(); console.log("play");
button.state = "playing"
@ -118,7 +118,7 @@ Rectangle {
}
Connections {
target: timelineManager
target: timelineManager.timeline
onMediaCached: {
if (mxcUrl == model.url) {
media.source = "file://" + cacheUrl

184
src/timeline/TimelineModel.cpp
View file

@ -3,11 +3,15 @@
#include <algorithm>
#include <type_traits>
#include <QFileDialog>
#include <QMimeDatabase>
#include <QRegularExpression>
#include <QStandardPaths>
#include "ChatPage.h"
#include "Logging.h"
#include "MainWindow.h"
#include "MxcImageProvider.h"
#include "Olm.h"
#include "TimelineViewManager.h"
#include "Utils.h"
@ -88,17 +92,42 @@ eventFormattedBody(const mtx::events::RoomEvent<T> &e)
}
}
template<class T>
boost::optional<mtx::crypto::EncryptedFile>
eventEncryptionInfo(const mtx::events::Event<T> &)
{
return boost::none;
}
template<class T>
auto
eventEncryptionInfo(const mtx::events::RoomEvent<T> &e) -> std::enable_if_t<
std::is_same<decltype(e.content.file), boost::optional<mtx::crypto::EncryptedFile>>::value,
boost::optional<mtx::crypto::EncryptedFile>>
{
return e.content.file;
}
template<class T>
QString
eventUrl(const mtx::events::Event<T> &)
{
return "";
}
QString
eventUrl(const mtx::events::StateEvent<mtx::events::state::Avatar> &e)
{
return QString::fromStdString(e.content.url);
}
template<class T>
auto
eventUrl(const mtx::events::RoomEvent<T> &e)
-> std::enable_if_t<std::is_same<decltype(e.content.url), std::string>::value, QString>
{
if (e.content.file)
return QString::fromStdString(e.content.file->url);
return QString::fromStdString(e.content.url);
}
@ -1342,3 +1371,158 @@ TimelineModel::addPendingMessage(mtx::events::collections::TimelineEvents event)
if (!isProcessingPending)
emit nextPendingMessage();
}
void
TimelineModel::saveMedia(QString eventId) const
{
mtx::events::collections::TimelineEvents event = events.value(eventId);
if (auto e = boost::get<mtx::events::EncryptedEvent<mtx::events::msg::Encrypted>>(&event)) {
event = decryptEvent(*e).event;
}
QString mxcUrl =
boost::apply_visitor([](const auto &e) -> QString { return eventUrl(e); }, event);
QString originalFilename =
boost::apply_visitor([](const auto &e) -> QString { return eventFilename(e); }, event);
QString mimeType =
boost::apply_visitor([](const auto &e) -> QString { return eventMimeType(e); }, event);
using EncF = boost::optional<mtx::crypto::EncryptedFile>;
EncF encryptionInfo =
boost::apply_visitor([](const auto &e) -> EncF { return eventEncryptionInfo(e); }, event);
qml_mtx_events::EventType eventType = boost::apply_visitor(
[](const auto &e) -> qml_mtx_events::EventType { return toRoomEventType(e); }, event);
QString dialogTitle;
if (eventType == qml_mtx_events::EventType::ImageMessage) {
dialogTitle = tr("Save image");
} else if (eventType == qml_mtx_events::EventType::VideoMessage) {
dialogTitle = tr("Save video");
} else if (eventType == qml_mtx_events::EventType::AudioMessage) {
dialogTitle = tr("Save audio");
} else {
dialogTitle = tr("Save file");
}
QString filterString = QMimeDatabase().mimeTypeForName(mimeType).filterString();
auto filename = QFileDialog::getSaveFileName(
manager_->getWidget(), dialogTitle, originalFilename, filterString);
if (filename.isEmpty())
return;
const auto url = mxcUrl.toStdString();
http::client()->download(
url,
[filename, url, encryptionInfo](const std::string &data,
const std::string &,
const std::string &,
mtx::http::RequestErr err) {
if (err) {
nhlog::net()->warn("failed to retrieve image {}: {} {}",
url,
err->matrix_error.error,
static_cast<int>(err->status_code));
return;
}
try {
auto temp = data;
if (encryptionInfo)
temp = mtx::crypto::to_string(
mtx::crypto::decrypt_file(temp, encryptionInfo.value()));
QFile file(filename);
if (!file.open(QIODevice::WriteOnly))
return;
file.write(QByteArray(temp.data(), (int)temp.size()));
file.close();
} catch (const std::exception &e) {
nhlog::ui()->warn("Error while saving file to: {}", e.what());
}
});
}
void
TimelineModel::cacheMedia(QString eventId)
{
mtx::events::collections::TimelineEvents event = events.value(eventId);
if (auto e = boost::get<mtx::events::EncryptedEvent<mtx::events::msg::Encrypted>>(&event)) {
event = decryptEvent(*e).event;
}
QString mxcUrl =
boost::apply_visitor([](const auto &e) -> QString { return eventUrl(e); }, event);
QString mimeType =
boost::apply_visitor([](const auto &e) -> QString { return eventMimeType(e); }, event);
using EncF = boost::optional<mtx::crypto::EncryptedFile>;
EncF encryptionInfo =
boost::apply_visitor([](const auto &e) -> EncF { return eventEncryptionInfo(e); }, event);
// If the message is a link to a non mxcUrl, don't download it
if (!mxcUrl.startsWith("mxc://")) {
emit mediaCached(mxcUrl, mxcUrl);
return;
}
QString suffix = QMimeDatabase().mimeTypeForName(mimeType).preferredSuffix();
const auto url = mxcUrl.toStdString();
QFileInfo filename(QString("%1/media_cache/%2.%3")
.arg(QStandardPaths::writableLocation(QStandardPaths::CacheLocation))
.arg(QString(mxcUrl).remove("mxc://"))
.arg(suffix));
if (QDir::cleanPath(filename.path()) != filename.path()) {
nhlog::net()->warn("mxcUrl '{}' is not safe, not downloading file", url);
return;
}
QDir().mkpath(filename.path());
if (filename.isReadable()) {
emit mediaCached(mxcUrl, filename.filePath());
return;
}
http::client()->download(
url,
[this, mxcUrl, filename, url, encryptionInfo](const std::string &data,
const std::string &,
const std::string &,
mtx::http::RequestErr err) {
if (err) {
nhlog::net()->warn("failed to retrieve image {}: {} {}",
url,
err->matrix_error.error,
static_cast<int>(err->status_code));
return;
}
try {
auto temp = data;
if (encryptionInfo)
temp = mtx::crypto::to_string(
mtx::crypto::decrypt_file(temp, encryptionInfo.value()));
QFile file(filename.filePath());
if (!file.open(QIODevice::WriteOnly))
return;
file.write(QByteArray(temp.data(), temp.size()));
file.close();
} catch (const std::exception &e) {
nhlog::ui()->warn("Error while saving file to: {}", e.what());
}
emit mediaCached(mxcUrl, filename.filePath());
});
}

3
src/timeline/TimelineModel.h
View file

@ -159,6 +159,8 @@ public:
Q_INVOKABLE void redactEvent(QString id);
Q_INVOKABLE int idToIndex(QString id) const;
Q_INVOKABLE QString indexToId(int index) const;
Q_INVOKABLE void cacheMedia(QString eventId);
Q_INVOKABLE void saveMedia(QString eventId) const;
void addEvents(const mtx::responses::Timeline &events);
template<class T>
@ -185,6 +187,7 @@ signals:
void eventRedacted(QString id);
void nextPendingMessage();
void newMessageToSend(mtx::events::collections::TimelineEvents event);
void mediaCached(QString mxcUrl, QString cacheUrl);
private:
DecryptionResult decryptEvent(

152
src/timeline/TimelineViewManager.cpp
View file

@ -1,11 +1,8 @@
#include "TimelineViewManager.h"
#include <QFileDialog>
#include <QMetaType>
#include <QMimeDatabase>
#include <QPalette>
#include <QQmlContext>
#include <QStandardPaths>
#include "ChatPage.h"
#include "ColorImageProvider.h"
@ -124,146 +121,24 @@ TimelineViewManager::setHistoryView(const QString &room_id)
}
void
TimelineViewManager::openImageOverlay(QString mxcUrl,
QString originalFilename,
QString mimeType,
qml_mtx_events::EventType eventType) const
TimelineViewManager::openImageOverlay(QString mxcUrl, QString eventId) const
{
QQuickImageResponse *imgResponse =
imgProvider->requestImageResponse(mxcUrl.remove("mxc://"), QSize());
connect(imgResponse,
&QQuickImageResponse::finished,
this,
[this, mxcUrl, originalFilename, mimeType, eventType, imgResponse]() {
if (!imgResponse->errorString().isEmpty()) {
nhlog::ui()->error("Error when retrieving image for overlay: {}",
imgResponse->errorString().toStdString());
return;
}
auto pixmap = QPixmap::fromImage(imgResponse->textureFactory()->image());
connect(imgResponse, &QQuickImageResponse::finished, this, [this, eventId, imgResponse]() {
if (!imgResponse->errorString().isEmpty()) {
nhlog::ui()->error("Error when retrieving image for overlay: {}",
imgResponse->errorString().toStdString());
return;
}
auto pixmap = QPixmap::fromImage(imgResponse->textureFactory()->image());
auto imgDialog = new dialogs::ImageOverlay(pixmap);
imgDialog->show();
connect(imgDialog,
&dialogs::ImageOverlay::saving,
this,
[this, mxcUrl, originalFilename, mimeType, eventType]() {
saveMedia(mxcUrl, originalFilename, mimeType, eventType);
});
auto imgDialog = new dialogs::ImageOverlay(pixmap);
imgDialog->show();
connect(imgDialog, &dialogs::ImageOverlay::saving, timeline_, [this, eventId]() {
timeline_->saveMedia(eventId);
});
}
void
TimelineViewManager::saveMedia(QString mxcUrl,
QString originalFilename,
QString mimeType,
qml_mtx_events::EventType eventType) const
{
QString dialogTitle;
if (eventType == qml_mtx_events::EventType::ImageMessage) {
dialogTitle = tr("Save image");
} else if (eventType == qml_mtx_events::EventType::VideoMessage) {
dialogTitle = tr("Save video");
} else if (eventType == qml_mtx_events::EventType::AudioMessage) {
dialogTitle = tr("Save audio");
} else {
dialogTitle = tr("Save file");
}
QString filterString = QMimeDatabase().mimeTypeForName(mimeType).filterString();
auto filename =
QFileDialog::getSaveFileName(container, dialogTitle, originalFilename, filterString);
if (filename.isEmpty())
return;
const auto url = mxcUrl.toStdString();
http::client()->download(
url,
[filename, url](const std::string &data,
const std::string &,
const std::string &,
mtx::http::RequestErr err) {
if (err) {
nhlog::net()->warn("failed to retrieve image {}: {} {}",
url,
err->matrix_error.error,
static_cast<int>(err->status_code));
return;
}
try {
QFile file(filename);
if (!file.open(QIODevice::WriteOnly))
return;
file.write(QByteArray(data.data(), (int)data.size()));
file.close();
} catch (const std::exception &e) {
nhlog::ui()->warn("Error while saving file to: {}", e.what());
}
});
}
void
TimelineViewManager::cacheMedia(QString mxcUrl, QString mimeType)
{
// If the message is a link to a non mxcUrl, don't download it
if (!mxcUrl.startsWith("mxc://")) {
emit mediaCached(mxcUrl, mxcUrl);
return;
}
QString suffix = QMimeDatabase().mimeTypeForName(mimeType).preferredSuffix();
const auto url = mxcUrl.toStdString();
QFileInfo filename(QString("%1/media_cache/%2.%3")
.arg(QStandardPaths::writableLocation(QStandardPaths::CacheLocation))
.arg(QString(mxcUrl).remove("mxc://"))
.arg(suffix));
if (QDir::cleanPath(filename.path()) != filename.path()) {
nhlog::net()->warn("mxcUrl '{}' is not safe, not downloading file", url);
return;
}
QDir().mkpath(filename.path());
if (filename.isReadable()) {
emit mediaCached(mxcUrl, filename.filePath());
return;
}
http::client()->download(
url,
[this, mxcUrl, filename, url](const std::string &data,
const std::string &,
const std::string &,
mtx::http::RequestErr err) {
if (err) {
nhlog::net()->warn("failed to retrieve image {}: {} {}",
url,
err->matrix_error.error,
static_cast<int>(err->status_code));
return;
}
try {
QFile file(filename.filePath());
if (!file.open(QIODevice::WriteOnly))
return;
file.write(QByteArray(data.data(), data.size()));
file.close();
} catch (const std::exception &e) {
nhlog::ui()->warn("Error while saving file to: {}", e.what());
}
emit mediaCached(mxcUrl, filename.filePath());
});
});
}
void
@ -401,3 +276,4 @@ TimelineViewManager::queueVideoMessage(const QString &roomid,
video.url = url.toStdString();
models.value(roomid)->sendMessage(video);
}

27
src/timeline/TimelineViewManager.h
View file

@ -35,38 +35,13 @@ public:
Q_INVOKABLE TimelineModel *activeTimeline() const { return timeline_; }
Q_INVOKABLE bool isInitialSync() const { return isInitialSync_; }
void openImageOverlay(QString mxcUrl,
QString originalFilename,
QString mimeType,
qml_mtx_events::EventType eventType) const;
void saveMedia(QString mxcUrl,
QString originalFilename,
QString mimeType,
qml_mtx_events::EventType eventType) const;
Q_INVOKABLE void cacheMedia(QString mxcUrl, QString mimeType);
// Qml can only pass enum as int
Q_INVOKABLE void openImageOverlay(QString mxcUrl,
QString originalFilename,
QString mimeType,
int eventType) const
{
openImageOverlay(
mxcUrl, originalFilename, mimeType, (qml_mtx_events::EventType)eventType);
}
Q_INVOKABLE void saveMedia(QString mxcUrl,
QString originalFilename,
QString mimeType,
int eventType) const
{
saveMedia(mxcUrl, originalFilename, mimeType, (qml_mtx_events::EventType)eventType);
}
Q_INVOKABLE void openImageOverlay(QString mxcUrl, QString eventId) const;
signals:
void clearRoomMessageCount(QString roomid);
void updateRoomsLastMessage(QString roomid, const DescInfo &info);
void activeTimelineChanged(TimelineModel *timeline);
void initialSyncChanged(bool isInitialSync);
void mediaCached(QString mxcUrl, QString cacheUrl);
public slots:
void updateReadReceipts(const QString &room_id, const std::vector<QString> &event_ids);