git.sur5r.net Git - minitube/blob - src/channelaggregator.cpp

   1 /* $BEGIN_LICENSE
   2
   3 This file is part of Minitube.
   4 Copyright 2009, Flavio Tordini <flavio.tordini@gmail.com>
   5
   6 Minitube is free software: you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation, either version 3 of the License, or
   9 (at your option) any later version.
  10
  11 Minitube is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with Minitube.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 $END_LICENSE */
  20
  21 #include "channelaggregator.h"
  22 #include "database.h"
  23 #include "searchparams.h"
  24 #include "video.h"
  25 #include "ytchannel.h"
  26 #include "ytsearch.h"
  27 #ifdef APP_MAC
  28 #include "macutils.h"
  29 #endif
  30 #include "http.h"
  31 #include "httputils.h"
  32
  33 #include "ivchannelsource.h"
  34 #include "videoapi.h"
  35 #include "ytjschannelsource.h"
  36
  37 ChannelAggregator::ChannelAggregator(QObject *parent)
  38     : QObject(parent), unwatchedCount(-1), running(false), stopped(false), currentChannel(0) {
  39     checkInterval = 3600;
  40
  41     timer = new QTimer(this);
  42     timer->setInterval(60000 * 5);
  43     connect(timer, SIGNAL(timeout()), SLOT(run()));
  44 }
  45
  46 ChannelAggregator *ChannelAggregator::instance() {
  47     static ChannelAggregator *i = new ChannelAggregator();
  48     return i;
  49 }
  50
  51 void ChannelAggregator::start() {
  52     stopped = false;
  53     updateUnwatchedCount();
  54     QTimer::singleShot(10000, this, SLOT(run()));
  55     if (!timer->isActive()) timer->start();
  56 }
  57
  58 void ChannelAggregator::stop() {
  59     timer->stop();
  60     stopped = true;
  61 }
  62
  63 YTChannel *ChannelAggregator::getChannelToCheck() {
  64     if (stopped) return 0;
  65     QSqlDatabase db = Database::instance().getConnection();
  66     QSqlQuery query(db);
  67     query.prepare("select user_id from subscriptions where checked<? "
  68                   "order by checked limit 1");
  69     query.bindValue(0, QDateTime::currentDateTimeUtc().toTime_t() - checkInterval);
  70     bool success = query.exec();
  71     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
  72     if (query.next()) return YTChannel::forId(query.value(0).toString());
  73     return 0;
  74 }
  75
  76 void ChannelAggregator::run() {
  77     if (running) return;
  78     if (!Database::exists()) return;
  79     running = true;
  80     newVideoCount = 0;
  81     updatedChannels.clear();
  82     updatedChannels.squeeze();
  83
  84     processNextChannel();
  85 }
  86
  87 void ChannelAggregator::processNextChannel() {
  88     if (stopped) {
  89         running = false;
  90         return;
  91     }
  92     YTChannel *channel = getChannelToCheck();
  93     if (channel) {
  94         checkWebPage(channel);
  95     } else
  96         finish();
  97 }
  98
  99 void ChannelAggregator::checkWebPage(YTChannel *channel) {
 100     currentChannel = channel;
 101
 102     QString channelId = channel->getChannelId();
 103     QString url;
 104     if (channelId.startsWith("UC") && !channelId.contains(' ')) {
 105         url = "https://www.youtube.com/channel/" + channelId + "/videos";
 106     } else {
 107         url = "https://www.youtube.com/user/" + channelId + "/videos";
 108     }
 109
 110     QObject *reply = HttpUtils::yt().get(url);
 111
 112     connect(reply, SIGNAL(data(QByteArray)), SLOT(parseWebPage(QByteArray)));
 113     connect(reply, SIGNAL(error(QString)), SLOT(errorWebPage(QString)));
 114 }
 115
 116 void ChannelAggregator::parseWebPage(const QByteArray &bytes) {
 117     bool hasNewVideos = true;
 118     QRegExp re = QRegExp("[\\?&]v=([0-9A-Za-z_-]+)");
 119     if (re.indexIn(bytes) != -1) {
 120         QString videoId = re.cap(1);
 121         QString latestVideoId = currentChannel->latestVideoId();
 122         qDebug() << "Comparing" << videoId << latestVideoId;
 123         hasNewVideos = videoId != latestVideoId;
 124     } else {
 125         qDebug() << "Cannot capture latest video id";
 126     }
 127     if (hasNewVideos) {
 128         if (currentChannel) {
 129             reallyProcessChannel(currentChannel);
 130             currentChannel = 0;
 131         }
 132     } else {
 133         currentChannel->updateChecked();
 134         currentChannel = 0;
 135         processNextChannel();
 136     }
 137 }
 138
 139 void ChannelAggregator::errorWebPage(const QString &message) {
 140     Q_UNUSED(message);
 141     reallyProcessChannel(currentChannel);
 142     currentChannel = 0;
 143 }
 144
 145 void ChannelAggregator::reallyProcessChannel(YTChannel *channel) {
 146     SearchParams *params = new SearchParams();
 147     params->setChannelId(channel->getChannelId());
 148     params->setSortBy(SearchParams::SortByNewest);
 149     params->setTransient(true);
 150     params->setPublishedAfter(channel->getChecked());
 151
 152     if (VideoAPI::impl() == VideoAPI::YT3) {
 153         YTSearch *videoSource = new YTSearch(params);
 154         connect(videoSource, SIGNAL(gotVideos(QVector<Video *>)),
 155                 SLOT(videosLoaded(QVector<Video *>)));
 156         videoSource->loadVideos(50, 1);
 157     } else if (VideoAPI::impl() == VideoAPI::IV) {
 158         auto *videoSource = new IVChannelSource(params);
 159         connect(videoSource, SIGNAL(gotVideos(QVector<Video *>)),
 160                 SLOT(videosLoaded(QVector<Video *>)));
 161         videoSource->loadVideos(50, 1);
 162     } else if (VideoAPI::impl() == VideoAPI::JS) {
 163         auto *videoSource = new YTJSChannelSource(params);
 164         connect(videoSource, SIGNAL(gotVideos(QVector<Video *>)),
 165                 SLOT(videosLoaded(QVector<Video *>)));
 166         videoSource->loadVideos(50, 1);
 167     }
 168
 169     channel->updateChecked();
 170 }
 171
 172 void ChannelAggregator::finish() {
 173     currentChannel = 0;
 174
 175 #ifdef Q_OS_MAC
 176     if (newVideoCount > 0 && unwatchedCount > 0 && mac::canNotify()) {
 177         QString channelNames;
 178         const int total = updatedChannels.size();
 179         for (int i = 0; i < total; ++i) {
 180             YTChannel *channel = updatedChannels.at(i);
 181             channelNames += channel->getDisplayName();
 182             if (i < total - 1) channelNames.append(", ");
 183         }
 184         channelNames = tr("By %1").arg(channelNames);
 185         int actualNewVideoCount = qMin(newVideoCount, unwatchedCount);
 186         mac::notify(tr("You have %n new video(s)", "", actualNewVideoCount), channelNames,
 187                     QString());
 188     }
 189 #endif
 190
 191     running = false;
 192 }
 193
 194 void ChannelAggregator::videosLoaded(const QVector<Video *> &videos) {
 195     sender()->deleteLater();
 196
 197     for (Video *video : videos) {
 198         addVideo(video);
 199         qApp->processEvents();
 200     }
 201
 202     if (!videos.isEmpty()) {
 203         YTChannel *channel = YTChannel::forId(videos.at(0)->getChannelId());
 204         if (channel) {
 205             channel->updateNotifyCount();
 206             emit channelChanged(channel);
 207         }
 208         updateUnwatchedCount();
 209         for (Video *video : videos)
 210             video->deleteLater();
 211     }
 212
 213     QTimer::singleShot(0, this, SLOT(processNextChannel()));
 214 }
 215
 216 void ChannelAggregator::updateUnwatchedCount() {
 217     if (!Database::exists()) return;
 218     QSqlDatabase db = Database::instance().getConnection();
 219     QSqlQuery query(db);
 220     query.prepare("select sum(notify_count) from subscriptions");
 221     bool success = query.exec();
 222     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 223     if (!query.next()) return;
 224     int newUnwatchedCount = query.value(0).toInt();
 225     if (newUnwatchedCount != unwatchedCount) {
 226         unwatchedCount = newUnwatchedCount;
 227         emit unwatchedCountChanged(unwatchedCount);
 228     }
 229 }
 230
 231 void ChannelAggregator::addVideo(Video *video) {
 232     QSqlDatabase db = Database::instance().getConnection();
 233
 234     QSqlQuery query(db);
 235     query.prepare("select count(*) from subscriptions_videos where video_id=?");
 236     query.bindValue(0, video->getId());
 237     bool success = query.exec();
 238     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 239     if (!query.next()) return;
 240     int count = query.value(0).toInt();
 241     if (count > 0) return;
 242
 243     // qDebug() << "Inserting" << video->author() << video->title();
 244
 245     YTChannel *channel = YTChannel::forId(video->getChannelId());
 246     if (!channel) {
 247         qWarning() << "channelId not present in db" << video->getChannelId()
 248                    << video->getChannelTitle();
 249         return;
 250     }
 251
 252     if (!updatedChannels.contains(channel)) updatedChannels << channel;
 253
 254     uint now = QDateTime::currentDateTimeUtc().toTime_t();
 255     uint published = video->getPublished().toTime_t();
 256     if (published > now) {
 257         qDebug() << "fixing publish time";
 258         published = now;
 259     }
 260
 261     query = QSqlQuery(db);
 262     query.prepare("insert into subscriptions_videos "
 263                   "(video_id,channel_id,published,added,watched,"
 264                   "title,author,user_id,description,url,thumb_url,views,duration) "
 265                   "values (?,?,?,?,?,?,?,?,?,?,?,?,?)");
 266     query.bindValue(0, video->getId());
 267     query.bindValue(1, channel->getId());
 268     query.bindValue(2, published);
 269     query.bindValue(3, now);
 270     query.bindValue(4, 0);
 271     query.bindValue(5, video->getTitle());
 272     query.bindValue(6, video->getChannelTitle());
 273     query.bindValue(7, video->getChannelId());
 274     query.bindValue(8, video->getDescription());
 275     query.bindValue(9, video->getWebpage());
 276     query.bindValue(10, video->getThumbnailUrl());
 277     query.bindValue(11, video->getViewCount());
 278     query.bindValue(12, video->getDuration());
 279     success = query.exec();
 280     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 281
 282     newVideoCount++;
 283
 284     query = QSqlQuery(db);
 285     query.prepare("update subscriptions set updated=? where user_id=?");
 286     query.bindValue(0, published);
 287     query.bindValue(1, channel->getChannelId());
 288     success = query.exec();
 289     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 290 }
 291
 292 void ChannelAggregator::markAllAsWatched() {
 293     uint now = QDateTime::currentDateTimeUtc().toTime_t();
 294
 295     QSqlDatabase db = Database::instance().getConnection();
 296     QSqlQuery query(db);
 297     query.prepare("update subscriptions set watched=?, notify_count=0");
 298     query.bindValue(0, now);
 299     bool success = query.exec();
 300     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 301     unwatchedCount = 0;
 302
 303     const auto &channels = YTChannel::getCachedChannels();
 304     for (YTChannel *channel : channels) {
 305         channel->setWatched(now);
 306         channel->setNotifyCount(0);
 307     }
 308
 309     emit unwatchedCountChanged(0);
 310 }
 311
 312 void ChannelAggregator::videoWatched(Video *video) {
 313     if (!Database::exists()) return;
 314     QSqlDatabase db = Database::instance().getConnection();
 315     QSqlQuery query(db);
 316     query.prepare("update subscriptions_videos set watched=? where video_id=?");
 317     query.bindValue(0, QDateTime::currentDateTimeUtc().toTime_t());
 318     query.bindValue(1, video->getId());
 319     bool success = query.exec();
 320     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 321     if (query.numRowsAffected() > 0) {
 322         YTChannel *channel = YTChannel::forId(video->getChannelId());
 323         if (channel) channel->updateNotifyCount();
 324     }
 325 }
 326
 327 void ChannelAggregator::cleanup() {
 328     const int maxVideos = 1000;
 329     const int maxDeletions = 1000;
 330     if (!Database::exists()) return;
 331     QSqlDatabase db = Database::instance().getConnection();
 332
 333     QSqlQuery query(db);
 334     bool success = query.exec("select count(*) from subscriptions_videos");
 335     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 336     if (!query.next()) return;
 337     int count = query.value(0).toInt();
 338     if (count <= maxVideos) return;
 339
 340     query = QSqlQuery(db);
 341     query.prepare("delete from subscriptions_videos where id in "
 342                   "(select id from subscriptions_videos "
 343                   "order by published desc limit ?,?)");
 344     query.bindValue(0, maxVideos);
 345     query.bindValue(1, maxDeletions);
 346     success = query.exec();
 347     if (!success) qWarning() << query.lastQuery() << query.lastError().text();
 348 }