vcs.maemo.org Git - grr/blob - src/googlereader.cpp

   1 #include <QtWebKit>
   2 #include <QApplication>
   3 #include <QNetworkRequest>
   4 #include <QNetworkReply>
   5 #include <QNetworkCookie>
   6 #include <QBuffer>
   7 #include <QTimer>
   8 #include <QDateTime>
   9 #include <QDebug>
  10
  11 #include <qjson/parser.h>
  12
  13 #include <stdio.h>
  14 #include <unistd.h>
  15 #include <stdlib.h>
  16
  17 #include "googlereader.h"
  18
  19 void Feed::updateSubscription(Feed *feed) {
  20         title = feed->title;
  21         sortid = feed->sortid;
  22         firstitemmsec = feed->firstitemmsec;
  23         cat_id = feed->cat_id;
  24         cat_label = feed->cat_label;
  25         subscription_updated = true;
  26 }
  27
  28 void Feed::fetch(bool cont) {
  29         QNetworkRequest request;
  30         QByteArray ba = "http://www.google.com/reader/api/0/stream/contents/";
  31         ba.append(QUrl::toPercentEncoding(id));
  32         QUrl url = QUrl::fromEncoded(ba);
  33
  34         if(continuation != "" && cont)
  35                 url.addEncodedQueryItem("c", continuation.toUtf8());
  36
  37         if(!cont && updated) {
  38                 /* Add 1 to the timestamp, otherwise we get the latest item
  39                  * again. Also the order has to be reversed for this to work. */
  40                 url.addEncodedQueryItem("ot", QByteArray::number(updated + 1));
  41                 url.addEncodedQueryItem("r", "o");
  42         }
  43
  44         request.setRawHeader("Authorization", reader->getAuth());
  45         request.setUrl(url);
  46         reply = reader->getManager()->get(request);
  47         connect(reply, SIGNAL(finished()), SLOT(fetchFinished()));
  48 }
  49
  50 void Feed::fetchFinished() {
  51         if (reply->error()) {
  52                 qDebug() << "Download of" << reply->url() << "failed:" << qPrintable(reply->errorString());
  53                 return;
  54         }
  55
  56         QJson::Parser parser;
  57         bool ok;
  58         QVariantMap result = parser.parse(reply->readAll(), &ok).toMap();
  59
  60         continuation = result["continuation"].toString();
  61         updated = result["updated"].toUInt();
  62
  63         foreach(QVariant l, result["items"].toList()) {
  64                 QVariantMap e = l.toMap();
  65                 Entry *entry = new Entry();;
  66                 QString content, summary;
  67
  68                 entry->id = e["id"].toString();
  69                 entry->published = QDateTime::fromTime_t(e["published"].toUInt());
  70                 entry->author = e["author"].toString();
  71                 entry->source = (e["origin"].toMap())["streamId"].toString();
  72                 foreach(QVariant a, e["alternate"].toList()) {
  73                         QVariantMap alt = a.toMap();
  74                         if(alt["type"].toString() == "text/html")
  75                                 entry->link = alt["href"].toString();
  76                 }
  77
  78                 content = (e["content"].toMap())["content"].toString();
  79                 summary = (e["summary"].toMap())["content"].toString();
  80                 if(content != "") entry->content = content; else entry->content = summary;
  81
  82                 if(e["isReadStateLocked"].toBool())
  83                         entry->flags |= ENTRY_FLAG_LOCKED | ENTRY_FLAG_READ;
  84
  85                 QWebPage p;
  86                 p.mainFrame()->setHtml(e["title"].toString());
  87                 entry->title = p.mainFrame()->toPlainText();
  88
  89                 foreach(QVariant c, e["categories"].toList()) {
  90                         QString cat = c.toString();
  91                         if(cat.endsWith("/state/com.google/read"))
  92                                 entry->flags |= ENTRY_FLAG_READ;
  93                         else if(cat.endsWith("/state/com.google/starred"))
  94                                 entry->flags |= ENTRY_FLAG_STARRED;
  95                         else if(cat.endsWith("/state/com.google/broadcast"))
  96                                 entry->flags |= ENTRY_FLAG_SHARED;
  97                 }
  98
  99                 entry->feed = this;
 100                 addEntry(entry);
 101         }
 102
 103         lastUpdated = QDateTime::currentDateTime();
 104
 105         emit updateFeedComplete();
 106
 107         reply->deleteLater();
 108 }
 109
 110 GoogleReader::GoogleReader() {
 111         connect(&manager, SIGNAL(finished(QNetworkReply*)),
 112                 SLOT(downloadFinished(QNetworkReply*)));
 113
 114         auth.clear();
 115         updateSubscriptionsPending = false;
 116         updateUnreadPending = false;
 117         authPending = false;
 118
 119         login_url.setUrl("https://www.google.com/accounts/ClientLogin");
 120         subscriptions_url.setUrl("http://www.google.com/reader/api/0/subscription/list?output=json");
 121         unread_url.setUrl("http://www.google.com/reader/api/0/unread-count?output=json");
 122         edittag_url.setUrl("http://www.google.com/reader/api/0/edit-tag?client=-");
 123         token_url.setUrl("http://www.google.com/reader/api/0/token");
 124         markallread_url.setUrl("http://www.google.com/reader/api/0/mark-all-as-read?client=-");
 125 #if 0
 126         /* Add the virtual 'All items' feed */
 127         Feed *feed = new Feed(this);
 128         /* TODO: With the user id, unread counts are not updated automatically... */
 129         feed->id = "user/-/state/com.google/reading-list";
 130         feed->title = "All items";
 131         feed->special = 3;
 132         feeds.insert(feed->id, feed);
 133         connect(feed, SIGNAL(allReadChanged()), SIGNAL(allReadChanged()));
 134 #endif
 135         /* Add the virtual 'Starred items' feed */
 136         Feed *feed = new Feed(this);
 137         feed->id = "user/-/state/com.google/starred";
 138         feed->title = "Starred items";
 139         feed->special = 2;
 140         feeds.insert(feed->id, feed);
 141         connect(feed, SIGNAL(allReadChanged()), SIGNAL(allReadChanged()));
 142
 143         /* Add the virtual 'Shared items' feed */
 144         feed = new Feed(this);
 145         feed->id = "user/-/state/com.google/broadcast";
 146         feed->title = "Shared items";
 147         feed->special = 1;
 148         feeds.insert(feed->id, feed);
 149         connect(feed, SIGNAL(allReadChanged()), SIGNAL(allReadChanged()));
 150 }
 151
 152 void GoogleReader::downloadFinished(QNetworkReply *reply) {
 153         QUrl url = reply->url();
 154
 155         /* TODO: Instead of comparing against the url, use the signal from the
 156          * QNetworkReply... */
 157
 158         if (reply->error()) {
 159                 qDebug() << "Download of" << url << "failed:" << qPrintable(reply->errorString());
 160                 if(url == login_url) {
 161                         authPending = false;
 162                         emit loginFailed("Incorrect username or password");
 163                 }
 164                 else if(url == edittag_url)
 165                         getToken();
 166                 return;
 167         }
 168         else if(url == login_url) {
 169                 QByteArray data = reply->readAll();
 170                 data.remove(0, data.indexOf("Auth=", 0) + 5);
 171                 data.remove(data.indexOf("\n", 0), 1024);
 172                 auth.clear();
 173                 auth.append("GoogleLogin auth=");
 174                 auth.append(data);
 175
 176                 qDebug() << "Auth:" << auth;
 177
 178                 authPending = false;
 179
 180                 getToken();
 181
 182                 /* TODO: Replace this with a proper state machine */
 183                 if(updateSubscriptionsPending) {
 184                         updateSubscriptionsPending = false;
 185                         updateSubscriptions();
 186                 }
 187         }
 188         else if(url == token_url) {
 189                 token = reply->readAll();
 190                 qDebug() << "token:" << token;
 191         }
 192         else if(url == subscriptions_url) {
 193                 parseSubscriptions(reply->readAll());
 194
 195                 /* TODO: Replace this with a proper state machine */
 196                 if(updateUnreadPending) {
 197                         updateUnreadPending = false;
 198                         updateUnread();
 199                 }
 200         }
 201         else if(url == unread_url) {
 202                 parseUnread(reply->readAll());
 203         }
 204         else if(url == edittag_url) {
 205                 QByteArray data = reply->readAll();
 206                 //qDebug() << "Result:" << data;
 207         }
 208         else if(url == markallread_url) {
 209                 QByteArray data = reply->readAll();
 210                 //qDebug() << "Result:" << data;
 211         }
 212
 213         reply->deleteLater();
 214 }
 215
 216 void GoogleReader::parseSubscriptions(QByteArray data) {
 217         QJson::Parser parser;
 218         bool ok;
 219         QVariantMap result = parser.parse(data, &ok).toMap();
 220
 221         /* Clear the subscription updated flag */
 222         QHash<QString, Feed *>::iterator i;
 223         for(i = feeds.begin(); i != feeds.end(); ++i)
 224                 i.value()->subscription_updated = false;
 225
 226         foreach(QVariant l, result["subscriptions"].toList()) {
 227                 QVariantMap subscription = l.toMap();
 228                 Feed *feed = new Feed(this);
 229                 Feed *existing_feed;
 230
 231                 feed->id = subscription["id"].toString();
 232                 feed->title = subscription["title"].toString();
 233                 feed->sortid = subscription["sortid"].toString();
 234                 feed->firstitemmsec = subscription["firstitemmsec"].toString();
 235
 236                 foreach(QVariant c, subscription["categories"].toList()) {
 237                         QVariantMap cat = c.toMap();
 238                         feed->cat_id = cat["id"].toString();
 239                         feed->cat_label = cat["label"].toString();
 240                 }
 241
 242                 existing_feed = feeds.value(feed->id);
 243                 if(existing_feed) {
 244                         existing_feed->updateSubscription(feed);
 245                         delete(feed);
 246                         feed = existing_feed;
 247
 248                 }
 249                 else {
 250                         feed->subscription_updated = true;
 251                         feeds.insert(feed->id, feed);
 252                         connect(feed, SIGNAL(allReadChanged()), SIGNAL(allReadChanged()));
 253                 }
 254         }
 255
 256         /* Delete feeds no longer subscribed to  */
 257         for(i = feeds.begin(); i != feeds.end(); ++i) {
 258                 if(i.value()->subscription_updated == false && i.value()->special == 0) {
 259                         printf("DELETED: %s\n", i.value()->title.toLatin1().data());
 260                         i = feeds.erase(i);
 261                 }
 262         }
 263
 264         lastUpdated = QDateTime::currentDateTime();
 265         emit updateSubscriptionsComplete();
 266 }
 267
 268 void GoogleReader::parseUnread(QByteArray data) {
 269         QJson::Parser parser;
 270         bool ok;
 271         QVariantMap result = parser.parse(data, &ok).toMap();
 272
 273         foreach(QVariant l, result["unreadcounts"].toList()) {
 274                 QVariantMap unread = l.toMap();
 275                 QString id = unread["id"].toString();
 276                 int count = unread["count"].toInt();
 277                 ulong newestitem = unread["newestitem"].toUInt();
 278
 279                 Feed *f = feeds.value(id);
 280                 if(f) {
 281                         f->unread = count;
 282                         f->newestitem = newestitem;
 283
 284                         /* Not a good idea if it doesn't happen sequentially. */
 285                         /* Pre-fetch feeds with unread items */
 286                         /* f->fetch(false); */
 287                 }
 288         }
 289
 290         lastUpdated = QDateTime::currentDateTime();
 291         emit updateUnreadComplete();
 292 }
 293
 294 void GoogleReader::clientLogin() {
 295
 296         if(authPending)
 297                 return;
 298
 299         authPending = true;
 300
 301         QNetworkRequest request;
 302         request.setUrl(login_url);
 303
 304         buffer.open(QBuffer::ReadWrite | QBuffer::Truncate);
 305         buffer.write("Email=");
 306         buffer.write(QUrl::toPercentEncoding(login));
 307         buffer.write("&Passwd=");
 308         buffer.write(QUrl::toPercentEncoding(passwd));
 309         buffer.write("&service=reader&source=grms&continue=http://www.google.com");
 310
 311         //buffer.seek(0);
 312         //qDebug() << buffer.readAll();
 313
 314         buffer.seek(0);
 315         manager.post(request, &buffer);
 316 }
 317
 318 void GoogleReader::getToken() {
 319         QNetworkRequest request;
 320         request.setRawHeader("Authorization", auth);
 321         request.setUrl(token_url);
 322         manager.get(request);
 323 }
 324
 325 void GoogleReader::updateSubscriptions() {
 326         QNetworkRequest request;
 327
 328         if(updateSubscriptionsPending)
 329                 return;
 330
 331         if(auth == "") {
 332                 updateSubscriptionsPending = true;
 333                 clientLogin();
 334                 return;
 335         }
 336
 337         request.setRawHeader("Authorization", auth);
 338         request.setUrl(subscriptions_url);
 339         manager.get(request);
 340 }
 341
 342 void GoogleReader::updateUnread() {
 343         QNetworkRequest request;
 344
 345         if(updateUnreadPending)
 346                 return;
 347
 348         if(auth == "") {
 349                 updateUnreadPending = true;
 350                 clientLogin();
 351                 return;
 352         }
 353
 354         request.setRawHeader("Authorization", auth);
 355         request.setUrl(unread_url);
 356         manager.get(request);
 357 }
 358
 359 static bool compareFeedItems(const Feed *f1, const Feed *f2) {
 360         if(f1->special || f2->special)
 361                 return f1->special > f2->special;
 362
 363         if(f1->cat_label == f2->cat_label)
 364                 return f1->title.toLower() < f2->title.toLower();
 365
 366         if(f1->cat_label.length() == 0)
 367                 return false;
 368
 369         if(f2->cat_label.length() == 0)
 370                 return true;
 371
 372         return f1->cat_label.toLower() < f2->cat_label.toLower();
 373 }
 374
 375 QList<Feed *> GoogleReader::getFeeds() {
 376         QList<Feed *> list = feeds.values();
 377         qSort(list.begin(), list.end(), compareFeedItems);
 378         return list;
 379 }
 380
 381 void Feed::addEntry(Entry *entry) {
 382         entries.insert(entry->id, entry);
 383 }
 384
 385 void Feed::delEntry(Entry *entry) {
 386         entries.remove(entry->id);
 387 }
 388
 389 void Feed::updateUnread(int i) {
 390         bool allRead = (unread == 0);
 391
 392         unread += i;
 393         if(unread <= 0) unread = 0;
 394
 395         if(allRead != (unread == 0))
 396                 emit allReadChanged();
 397 }
 398
 399 void Feed::markRead() {
 400         if(unread > 0) {
 401                 /* Mark all the remaining items read */
 402
 403                 QNetworkRequest request;
 404                 request.setRawHeader("Authorization", reader->getAuth());
 405                 request.setUrl(reader->markallread_url);
 406
 407                 buffer.open(QBuffer::ReadWrite | QBuffer::Truncate);
 408                 buffer.write("s=");
 409                 buffer.write(QUrl::toPercentEncoding(id));
 410                 //buffer.write("&ts=");
 411                 //buffer.write(QByteArray::number(oldest));
 412                 buffer.write("&T=");
 413                 buffer.write(QUrl::toPercentEncoding(reader->token));
 414
 415                 //buffer.seek(0);
 416                 //qDebug() << buffer.readAll();
 417
 418                 buffer.seek(0);
 419                 reader->manager.post(request, &buffer);
 420
 421                 unread = 0;
 422
 423                 /* Go over all the entries and mark them read */
 424                 QHash<QString, Entry *>::iterator i;
 425                 for(i = entries.begin(); i != entries.end(); ++i)
 426                         i.value()->flags |= ENTRY_FLAG_READ | ENTRY_FLAG_LOCKED;
 427         }
 428
 429         emit allReadChanged();
 430 }
 431
 432 static bool compareEntryItems(const Entry *e1, const Entry *e2) {
 433         return e1->published > e2->published;
 434 }
 435
 436 QList<Entry *> Feed::getEntries() {
 437         QList<Entry *> list = entries.values();
 438         qSort(list.begin(), list.end(), compareEntryItems);
 439         return list;
 440 }
 441
 442 /* TODO: Remove the duplicate code in changing stated */
 443
 444 void Entry::markRead(bool mark_read) {
 445         /* Check if the read flag differs from the requested state */
 446         if(((flags & ENTRY_FLAG_READ) != 0) == mark_read)
 447                 return;
 448
 449         /* Cannot mark an item unread if it's locked */
 450         if((flags & ENTRY_FLAG_LOCKED) && !mark_read)
 451                 return;
 452
 453         QNetworkRequest request;
 454         request.setRawHeader("Authorization", feed->reader->getAuth());
 455         request.setUrl(feed->reader->edittag_url);
 456
 457         postread.open(QBuffer::ReadWrite | QBuffer::Truncate);
 458         postread.write("i=");
 459         postread.write(QUrl::toPercentEncoding(id));
 460         if(mark_read)
 461                 postread.write("&a=");
 462         else
 463                 postread.write("&r=");
 464         postread.write(QUrl::toPercentEncoding("user/-/state/com.google/read"));
 465         postread.write("&ac=edit-tags&T=");
 466         postread.write(QUrl::toPercentEncoding(feed->reader->token));
 467         postread.seek(0);
 468         feed->reader->manager.post(request, &postread);
 469
 470         feed->updateUnread(mark_read ? -1 : 1);
 471
 472         if(mark_read)
 473                 flags |= ENTRY_FLAG_READ;
 474         else
 475                 flags &= ~ENTRY_FLAG_READ;
 476 }
 477
 478 void Entry::markStar(bool mark_star) {
 479         /* Check if the starred flag differs from the requested state */
 480         if(((flags & ENTRY_FLAG_STARRED) != 0) == mark_star)
 481                 return;
 482
 483         QNetworkRequest request;
 484         request.setRawHeader("Authorization", feed->reader->getAuth());
 485         request.setUrl(feed->reader->edittag_url);
 486
 487         poststar.open(QBuffer::ReadWrite | QBuffer::Truncate);
 488         poststar.write("i=");
 489         poststar.write(QUrl::toPercentEncoding(id));
 490         if(mark_star)
 491                 poststar.write("&a=");
 492         else
 493                 poststar.write("&r=");
 494         poststar.write(QUrl::toPercentEncoding("user/-/state/com.google/starred"));
 495         poststar.write("&ac=edit-tags&T=");
 496         poststar.write(QUrl::toPercentEncoding(feed->reader->token));
 497         poststar.seek(0);
 498         feed->reader->manager.post(request, &poststar);
 499
 500         Feed *starred = feed->reader->feeds.value("user/-/state/com.google/starred");
 501
 502         if(mark_star) {
 503                 starred->addEntry(this);
 504                 flags |= ENTRY_FLAG_STARRED;
 505         }
 506         else {
 507                 starred->delEntry(this);
 508                 flags &= ~ENTRY_FLAG_STARRED;
 509         }
 510 }
 511
 512 void Entry::markShared(bool mark_shared) {
 513         /* Check if the shared flag differs from the requested state */
 514         if(((flags & ENTRY_FLAG_SHARED) != 0) == mark_shared)
 515                 return;
 516
 517         QNetworkRequest request;
 518         request.setRawHeader("Authorization", feed->reader->getAuth());
 519         request.setUrl(feed->reader->edittag_url);
 520
 521         postshared.open(QBuffer::ReadWrite | QBuffer::Truncate);
 522         postshared.write("i=");
 523         postshared.write(QUrl::toPercentEncoding(id));
 524         if(mark_shared)
 525                 postshared.write("&a=");
 526         else
 527                 postshared.write("&r=");
 528         postshared.write(QUrl::toPercentEncoding("user/-/state/com.google/broadcast"));
 529         postshared.write("&ac=edit-tags&T=");
 530         postshared.write(QUrl::toPercentEncoding(feed->reader->token));
 531         postshared.seek(0);
 532         feed->reader->manager.post(request, &postshared);
 533
 534         Feed *shared = feed->reader->feeds.value("user/-/state/com.google/broadcast");
 535
 536         if(mark_shared) {
 537                 shared->addEntry(this);
 538                 flags |= ENTRY_FLAG_SHARED;
 539         }
 540         else {
 541                 shared->delEntry(this);
 542                 flags &= ~ENTRY_FLAG_SHARED;
 543         }
 544 }