tdesktop/Telegram/SourceFiles/data/data_web_page.cpp

238 lines
6.3 KiB
C++

/*
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 "data/data_web_page.h"
#include "auth_session.h"
#include "apiwrap.h"
#include "mainwidget.h"
#include "data/data_session.h"
#include "data/data_photo.h"
#include "data/data_document.h"
#include "ui/image/image.h"
#include "ui/image/image_source.h"
#include "ui/text/text_entity.h"
namespace {
QString SiteNameFromUrl(const QString &url) {
QUrl u(url);
QString pretty = u.isValid() ? u.toDisplayString() : url;
QRegularExpressionMatch m = QRegularExpression(qsl("^[a-zA-Z0-9]+://")).match(pretty);
if (m.hasMatch()) pretty = pretty.mid(m.capturedLength());
int32 slash = pretty.indexOf('/');
if (slash > 0) pretty = pretty.mid(0, slash);
QStringList components = pretty.split('.', QString::SkipEmptyParts);
if (components.size() >= 2) {
components = components.mid(components.size() - 2);
return components.at(0).at(0).toUpper() + components.at(0).mid(1) + '.' + components.at(1);
}
return QString();
}
WebPageCollage ExtractCollage(
const QVector<MTPPageBlock> &items,
const QVector<MTPPhoto> &photos,
const QVector<MTPDocument> &documents) {
const auto count = items.size();
if (count < 2) {
return {};
}
const auto bad = ranges::find_if(items, [](mtpTypeId type) {
return (type != mtpc_pageBlockPhoto && type != mtpc_pageBlockVideo);
}, [](const MTPPageBlock &item) {
return item.type();
});
if (bad != items.end()) {
return {};
}
auto &storage = Auth().data();
for (const auto &photo : photos) {
storage.photo(photo);
}
for (const auto &document : documents) {
storage.document(document);
}
auto result = WebPageCollage();
result.items.reserve(count);
for (const auto &item : items) {
const auto good = item.match([&](const MTPDpageBlockPhoto &data) {
const auto photo = storage.photo(data.vphoto_id.v);
if (photo->full->isNull()) {
return false;
}
result.items.push_back(photo);
return true;
}, [&](const MTPDpageBlockVideo &data) {
const auto document = storage.document(data.vvideo_id.v);
if (!document->isVideoFile()) {
return false;
}
result.items.push_back(document);
return true;
}, [](const auto &) -> bool {
Unexpected("Type of block in Collage.");
});
if (!good) {
return {};
}
}
return result;
}
WebPageCollage ExtractCollage(const MTPDwebPage &data) {
if (!data.has_cached_page()) {
return {};
}
const auto parseMedia = [&] {
if (data.has_photo()) {
Auth().data().photo(data.vphoto);
}
if (data.has_document()) {
Auth().data().document(data.vdocument);
}
};
return data.vcached_page.match([&](const auto &page) {
for (const auto &block : page.vblocks.v) {
switch (block.type()) {
case mtpc_pageBlockPhoto:
case mtpc_pageBlockVideo:
case mtpc_pageBlockCover:
case mtpc_pageBlockEmbed:
case mtpc_pageBlockEmbedPost:
case mtpc_pageBlockAudio:
return WebPageCollage();
case mtpc_pageBlockSlideshow:
parseMedia();
return ExtractCollage(
block.c_pageBlockSlideshow().vitems.v,
page.vphotos.v,
page.vdocuments.v);
case mtpc_pageBlockCollage:
parseMedia();
return ExtractCollage(
block.c_pageBlockCollage().vitems.v,
page.vphotos.v,
page.vdocuments.v);
default: break;
}
}
return WebPageCollage();
});
}
} // namespace
WebPageType ParseWebPageType(const MTPDwebPage &page) {
const auto type = page.has_type() ? qs(page.vtype) : QString();
if (type == qstr("photo")) return WebPageType::Photo;
if (type == qstr("video")) return WebPageType::Video;
if (type == qstr("profile")) return WebPageType::Profile;
return page.has_cached_page()
? WebPageType::ArticleWithIV
: WebPageType::Article;
}
WebPageCollage::WebPageCollage(const MTPDwebPage &data)
: WebPageCollage(ExtractCollage(data)) {
}
bool WebPageData::applyChanges(
WebPageType newType,
const QString &newUrl,
const QString &newDisplayUrl,
const QString &newSiteName,
const QString &newTitle,
const TextWithEntities &newDescription,
PhotoData *newPhoto,
DocumentData *newDocument,
WebPageCollage &&newCollage,
int newDuration,
const QString &newAuthor,
int newPendingTill) {
if (newPendingTill != 0
&& (!url.isEmpty() || pendingTill < 0)
&& (!pendingTill
|| pendingTill == newPendingTill
|| newPendingTill < -1)) {
return false;
}
const auto resultUrl = TextUtilities::Clean(newUrl);
const auto resultDisplayUrl = TextUtilities::Clean(
newDisplayUrl);
const auto possibleSiteName = TextUtilities::Clean(
newSiteName);
const auto resultTitle = TextUtilities::SingleLine(
newTitle);
const auto resultAuthor = TextUtilities::Clean(newAuthor);
const auto viewTitleText = resultTitle.isEmpty()
? TextUtilities::SingleLine(resultAuthor)
: resultTitle;
const auto resultSiteName = [&] {
if (!possibleSiteName.isEmpty()) {
return possibleSiteName;
} else if (!newDescription.text.isEmpty()
&& viewTitleText.isEmpty()
&& !resultUrl.isEmpty()) {
return SiteNameFromUrl(resultUrl);
}
return QString();
}();
if (type == newType
&& url == resultUrl
&& displayUrl == resultDisplayUrl
&& siteName == resultSiteName
&& title == resultTitle
&& description.text == newDescription.text
&& photo == newPhoto
&& document == newDocument
&& collage.items == newCollage.items
&& duration == newDuration
&& author == resultAuthor
&& pendingTill == newPendingTill) {
return false;
}
if (pendingTill > 0 && newPendingTill <= 0) {
Auth().api().clearWebPageRequest(this);
}
type = newType;
url = resultUrl;
displayUrl = resultDisplayUrl;
siteName = resultSiteName;
title = resultTitle;
description = newDescription;
photo = newPhoto;
document = newDocument;
collage = std::move(newCollage);
duration = newDuration;
author = resultAuthor;
pendingTill = newPendingTill;
++version;
replaceDocumentGoodThumbnail();
return true;
}
void WebPageData::replaceDocumentGoodThumbnail() {
if (!document || !photo || !document->goodThumbnail()) {
return;
}
const auto &location = photo->full->location();
if (!location.isNull()) {
document->replaceGoodThumbnail(
std::make_unique<Images::StorageSource>(
location,
photo->full->bytesSize()));
}
}