tdesktop/Telegram/SourceFiles/history/history_location_manager.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "history/history_location_manager.h"
#include "mainwidget.h"
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#include "lang/lang_keys.h"
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#include "platform/platform_specific.h"
namespace {
constexpr auto kCoordPrecision = 8;
constexpr auto kMaxHttpRedirects = 5;
} // namespace
QString LocationClickHandler::copyToClipboardText() const {
return _text;
}
QString LocationClickHandler::copyToClipboardContextItemText() const {
return lang(lng_context_copy_link);
}
void LocationClickHandler::onClick(Qt::MouseButton button) const {
if (!psLaunchMaps(_coords)) {
QDesktopServices::openUrl(_text);
}
}
void LocationClickHandler::setup() {
auto latlon = _coords.latAsString() + ',' + _coords.lonAsString();
_text = qsl("https://maps.google.com/maps?q=") + latlon + qsl("&ll=") + latlon + qsl("&z=16");
}
namespace {
LocationManager *locationManager = nullptr;
} // namespace
void initLocationManager() {
if (!locationManager) {
locationManager = new LocationManager();
locationManager->init();
}
}
void deinitLocationManager() {
if (locationManager) {
locationManager->deinit();
delete locationManager;
locationManager = nullptr;
}
}
void LocationManager::init() {
if (manager) delete manager;
manager = new QNetworkAccessManager();
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
connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(onFinished(QNetworkReply*)));
if (notLoadedPlaceholder) {
delete notLoadedPlaceholder->v();
delete notLoadedPlaceholder;
}
auto data = QImage(cIntRetinaFactor(), cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
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data.fill(st::imageBgTransparent->c);
data.setDevicePixelRatio(cRetinaFactor());
notLoadedPlaceholder = new ImagePtr(App::pixmapFromImageInPlace(std::move(data)), "GIF");
}
void LocationManager::deinit() {
if (manager) {
delete manager;
manager = nullptr;
}
if (notLoadedPlaceholder) {
delete notLoadedPlaceholder->v();
delete notLoadedPlaceholder;
notLoadedPlaceholder = nullptr;
}
dataLoadings.clear();
imageLoadings.clear();
}
void LocationManager::getData(LocationData *data) {
if (!manager) {
DEBUG_LOG(("App Error: getting image link data without manager init!"));
return failed(data);
}
int32 w = st::locationSize.width(), h = st::locationSize.height();
int32 zoom = 13, scale = 1;
if (cScale() == dbisTwo || cRetina()) {
scale = 2;
} else {
w = convertScale(w);
h = convertScale(h);
}
auto coords = data->coords.latAsString() + ',' + data->coords.lonAsString();
QString url = qsl("https://maps.googleapis.com/maps/api/staticmap?center=") + coords + qsl("&zoom=%1&size=%2x%3&maptype=roadmap&scale=%4&markers=color:red|size:big|").arg(zoom).arg(w).arg(h).arg(scale) + coords + qsl("&sensor=false");
QNetworkReply *reply = manager->get(QNetworkRequest(QUrl(url)));
imageLoadings[reply] = data;
}
void LocationManager::onFinished(QNetworkReply *reply) {
if (!manager) return;
if (reply->error() != QNetworkReply::NoError) return onFailed(reply);
QVariant statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
if (statusCode.isValid()) {
int status = statusCode.toInt();
if (status == 301 || status == 302) {
QString loc = reply->header(QNetworkRequest::LocationHeader).toString();
if (!loc.isEmpty()) {
QMap<QNetworkReply*, LocationData*>::iterator i = dataLoadings.find(reply);
if (i != dataLoadings.cend()) {
LocationData *d = i.value();
if (serverRedirects.constFind(d) == serverRedirects.cend()) {
serverRedirects.insert(d, 1);
} else if (++serverRedirects[d] > kMaxHttpRedirects) {
DEBUG_LOG(("Network Error: Too many HTTP redirects in onFinished() for image link: %1").arg(loc));
return onFailed(reply);
}
dataLoadings.erase(i);
dataLoadings.insert(manager->get(QNetworkRequest(loc)), d);
return;
} else if ((i = imageLoadings.find(reply)) != imageLoadings.cend()) {
LocationData *d = i.value();
if (serverRedirects.constFind(d) == serverRedirects.cend()) {
serverRedirects.insert(d, 1);
} else if (++serverRedirects[d] > kMaxHttpRedirects) {
DEBUG_LOG(("Network Error: Too many HTTP redirects in onFinished() for image link: %1").arg(loc));
return onFailed(reply);
}
imageLoadings.erase(i);
imageLoadings.insert(manager->get(QNetworkRequest(loc)), d);
return;
}
}
}
if (status != 200) {
DEBUG_LOG(("Network Error: Bad HTTP status received in onFinished() for image link: %1").arg(status));
return onFailed(reply);
}
}
LocationData *d = 0;
QMap<QNetworkReply*, LocationData*>::iterator i = dataLoadings.find(reply);
if (i != dataLoadings.cend()) {
d = i.value();
dataLoadings.erase(i);
QJsonParseError e;
QJsonDocument doc = QJsonDocument::fromJson(reply->readAll(), &e);
if (e.error != QJsonParseError::NoError) {
DEBUG_LOG(("JSON Error: Bad json received in onFinished() for image link"));
return onFailed(reply);
}
failed(d);
if (App::main()) App::main()->update();
} else {
i = imageLoadings.find(reply);
if (i != imageLoadings.cend()) {
d = i.value();
imageLoadings.erase(i);
QPixmap thumb;
QByteArray format;
QByteArray data(reply->readAll());
{
QBuffer buffer(&data);
QImageReader reader(&buffer);
#ifndef OS_MAC_OLD
reader.setAutoTransform(true);
#endif // OS_MAC_OLD
thumb = QPixmap::fromImageReader(&reader, Qt::ColorOnly);
format = reader.format();
thumb.setDevicePixelRatio(cRetinaFactor());
if (format.isEmpty()) format = QByteArray("JPG");
}
d->loading = false;
d->thumb = thumb.isNull() ? (*notLoadedPlaceholder) : ImagePtr(thumb, format);
serverRedirects.remove(d);
if (App::main()) App::main()->update();
}
}
}
void LocationManager::onFailed(QNetworkReply *reply) {
if (!manager) return;
LocationData *d = 0;
QMap<QNetworkReply*, LocationData*>::iterator i = dataLoadings.find(reply);
if (i != dataLoadings.cend()) {
d = i.value();
dataLoadings.erase(i);
} else {
i = imageLoadings.find(reply);
if (i != imageLoadings.cend()) {
d = i.value();
imageLoadings.erase(i);
}
}
DEBUG_LOG(("Network Error: failed to get data for image link %1,%2 error %3").arg(d ? d->coords.latAsString() : QString()).arg(d ? d->coords.lonAsString() : QString()).arg(reply->errorString()));
if (d) {
failed(d);
}
}
void LocationManager::failed(LocationData *data) {
data->loading = false;
data->thumb = *notLoadedPlaceholder;
serverRedirects.remove(data);
}
void LocationData::load() {
if (!thumb->isNull()) return thumb->load(false, false);
if (loading) return;
loading = true;
if (locationManager) {
locationManager->getData(this);
}
}