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
 126         /* Add the virtual 'Starred items' feed */
 127         Feed *feed = new Feed(this);
 128         feed->id = "user/-/state/com.google/starred";
 129         feed->title = "Starred items";
 130         feed->special = 2;
 131         feeds.insert(feed->id, feed);
 132         connect(feed, SIGNAL(allReadChanged()), SIGNAL(allReadChanged()));
 133
 134         /* Add the virtual 'Shared items' feed */
 135         feed = new Feed(this);
 136         feed->id = "user/-/state/com.google/broadcast";
 137         feed->title = "Shared items";
 138         feed->special = 1;
 139         feeds.insert(feed->id, feed);
 140         connect(feed, SIGNAL(allReadChanged()), SIGNAL(allReadChanged()));
 141 }
 142
 143 void GoogleReader::downloadFinished(QNetworkReply *reply) {
 144         QUrl url = reply->url();
 145
 146         /* TODO: Instead of comparing against the url, use the signal from the
 147          * QNetworkReply... */
 148
 149         if (reply->error()) {
 150                 qDebug() << "Download of" << url << "failed:" << qPrintable(reply->errorString());
 151                 if(url == login_url) {
 152                         authPending = false;
 153                         emit loginFailed("Incorrect username or password");
 154                 }
 155                 else if(url == edittag_url)
 156                         getToken();
 157                 return;
 158         }
 159         else if(url == login_url) {
 160                 QByteArray data = reply->readAll();
 161                 data.remove(0, data.indexOf("Auth=", 0) + 5);
 162                 data.remove(data.indexOf("\n", 0), 1024);
 163                 auth.clear();
 164                 auth.append("GoogleLogin auth=");
 165                 auth.append(data);
 166
 167                 qDebug() << "Auth:" << auth;
 168
 169                 authPending = false;
 170
 171                 getToken();
 172
 173                 /* TODO: Replace this with a proper state machine */
 174                 if(updateSubscriptionsPending) {
 175                         updateSubscriptionsPending = false;
 176                         updateSubscriptions();
 177                 }
 178         }
 179         else if(url == token_url) {
 180                 token = reply->readAll();
 181                 qDebug() << "token:" << token;
 182         }
 183         else if(url == subscriptions_url) {
 184                 parseSubscriptions(reply->readAll());
 185
 186                 /* TODO: Replace this with a proper state machine */
 187                 if(updateUnreadPending) {
 188                         updateUnreadPending = false;
 189                         updateUnread();
 190                 }
 191         }
 192         else if(url == unread_url) {
 193                 parseUnread(reply->readAll());
 194         }
 195         else if(url == edittag_url) {
 196                 QByteArray data = reply->readAll();
 197                 //qDebug() << "Result:" << data;
 198         }
 199         else if(url == markallread_url) {
 200                 QByteArray data = reply->readAll();
 201                 //qDebug() << "Result:" << data;
 202         }
 203
 204         reply->deleteLater();
 205 }
 206
 207 void GoogleReader::parseSubscriptions(QByteArray data) {
 208         QJson::Parser parser;
 209         bool ok;
 210         QVariantMap result = parser.parse(data, &ok).toMap();
 211
 212         /* Clear the subscription updated flag */
 213         QHash<QString, Feed *>::iterator i;
 214         for(i = feeds.begin(); i != feeds.end(); ++i)
 215                 i.value()->subscription_updated = false;
 216
 217         foreach(QVariant l, result["subscriptions"].toList()) {
 218                 QVariantMap subscription = l.toMap();
 219                 Feed *feed = new Feed(this);
 220                 Feed *existing_feed;
 221
 222                 feed->id = subscription["id"].toString();
 223                 feed->title = subscription["title"].toString();
 224                 feed->sortid = subscription["sortid"].toString();
 225                 feed->firstitemmsec = subscription["firstitemmsec"].toString();
 226
 227                 foreach(QVariant c, subscription["categories"].toList()) {
 228                         QVariantMap cat = c.toMap();
 229                         feed->cat_id = cat["id"].toString();
 230                         feed->cat_label = cat["label"].toString();
 231                 }
 232
 233                 existing_feed = feeds.value(feed->id);
 234                 if(existing_feed) {
 235                         existing_feed->updateSubscription(feed);
 236                         delete(feed);
 237                         feed = existing_feed;
 238
 239                 }
 240                 else {
 241                         feed->subscription_updated = true;
 242                         feeds.insert(feed->id, feed);
 243                         connect(feed, SIGNAL(allReadChanged()), SIGNAL(allReadChanged()));
 244                 }
 245         }
 246
 247         /* Delete feeds no longer subscribed to  */
 248         for(i = feeds.begin(); i != feeds.end(); ++i) {
 249                 if(i.value()->subscription_updated == false && i.value()->special == 0) {
 250                         printf("DELETED: %s\n", i.value()->title.toLatin1().data());
 251                         i = feeds.erase(i);
 252                 }
 253         }
 254
 255         lastUpdated = QDateTime::currentDateTime();
 256         emit updateSubscriptionsComplete();
 257 }
 258
 259 void GoogleReader::parseUnread(QByteArray data) {
 260         QJson::Parser parser;
 261         bool ok;
 262         QVariantMap result = parser.parse(data, &ok).toMap();
 263
 264         foreach(QVariant l, result["unreadcounts"].toList()) {
 265                 QVariantMap unread = l.toMap();
 266                 QString id = unread["id"].toString();
 267                 int count = unread["count"].toInt();
 268                 ulong newestitem = unread["newestitem"].toUInt();
 269
 270                 Feed *f = feeds.value(id);
 271                 if(f) {
 272                         f->unread = count;
 273                         f->newestitem = newestitem;
 274
 275                         /* Not a good idea if it doesn't happen sequentially. */
 276                         /* Pre-fetch feeds with unread items */
 277                         /* f->fetch(false); */
 278                 }
 279         }
 280
 281         lastUpdated = QDateTime::currentDateTime();
 282         emit updateUnreadComplete();
 283 }
 284
 285 void GoogleReader::clientLogin() {
 286
 287         if(authPending)
 288                 return;
 289
 290         authPending = true;
 291
 292         QNetworkRequest request;
 293         request.setUrl(login_url);
 294
 295         buffer.open(QBuffer::ReadWrite | QBuffer::Truncate);
 296         buffer.write("Email=");
 297         buffer.write(QUrl::toPercentEncoding(login));
 298         buffer.write("&Passwd=");
 299         buffer.write(QUrl::toPercentEncoding(passwd));
 300         buffer.write("&service=reader&source=grms&continue=http://www.google.com");
 301
 302         //buffer.seek(0);
 303         //qDebug() << buffer.readAll();
 304
 305         buffer.seek(0);
 306         manager.post(request, &buffer);
 307 }
 308
 309 void GoogleReader::getToken() {
 310         QNetworkRequest request;
 311         request.setRawHeader("Authorization", auth);
 312         request.setUrl(token_url);
 313         manager.get(request);
 314 }
 315
 316 void GoogleReader::updateSubscriptions() {
 317         QNetworkRequest request;
 318
 319         if(updateSubscriptionsPending)
 320                 return;
 321
 322         if(auth == "") {
 323                 updateSubscriptionsPending = true;
 324                 clientLogin();
 325                 return;
 326         }
 327
 328         request.setRawHeader("Authorization", auth);
 329         request.setUrl(subscriptions_url);
 330         manager.get(request);
 331 }
 332
 333 void GoogleReader::updateUnread() {
 334         QNetworkRequest request;
 335
 336         if(updateUnreadPending)
 337                 return;
 338
 339         if(auth == "") {
 340                 updateUnreadPending = true;
 341                 clientLogin();
 342                 return;
 343         }
 344
 345         request.setRawHeader("Authorization", auth);
 346         request.setUrl(unread_url);
 347         manager.get(request);
 348 }
 349
 350 static bool compareFeedItems(const Feed *f1, const Feed *f2) {
 351         if(f1->special || f2->special)
 352                 return f1->special > f2->special;
 353
 354         if(f1->cat_label == f2->cat_label)
 355                 return f1->title.toLower() < f2->title.toLower();
 356
 357         if(f1->cat_label.length() == 0)
 358                 return false;
 359
 360         if(f2->cat_label.length() == 0)
 361                 return true;
 362
 363         return f1->cat_label.toLower() < f2->cat_label.toLower();
 364 }
 365
 366 QList<Feed *> GoogleReader::getFeeds() {
 367         QList<Feed *> list = feeds.values();
 368         qSort(list.begin(), list.end(), compareFeedItems);
 369         return list;
 370 }
 371
 372 void Feed::addEntry(Entry *entry) {
 373         entries.insert(entry->id, entry);
 374 }
 375
 376 void Feed::delEntry(Entry *entry) {
 377         entries.remove(entry->id);
 378 }
 379
 380 void Feed::updateUnread(int i) {
 381         bool allRead = (unread == 0);
 382
 383         unread += i;
 384         if(unread <= 0) unread = 0;
 385
 386         if(allRead != (unread == 0))
 387                 emit allReadChanged();
 388 }
 389
 390 void Feed::markRead() {
 391         if(unread > 0) {
 392                 /* Mark all the remaining items read */
 393
 394                 QNetworkRequest request;
 395                 request.setRawHeader("Authorization", reader->getAuth());
 396                 request.setUrl(reader->markallread_url);
 397
 398                 buffer.open(QBuffer::ReadWrite | QBuffer::Truncate);
 399                 buffer.write("s=");
 400                 buffer.write(QUrl::toPercentEncoding(id));
 401                 //buffer.write("&ts=");
 402                 //buffer.write(QByteArray::number(oldest));
 403                 buffer.write("&T=");
 404                 buffer.write(QUrl::toPercentEncoding(reader->token));
 405
 406                 //buffer.seek(0);
 407                 //qDebug() << buffer.readAll();
 408
 409                 buffer.seek(0);
 410                 reader->manager.post(request, &buffer);
 411
 412                 unread = 0;
 413
 414                 /* Go over all the entries and mark them read */
 415                 QHash<QString, Entry *>::iterator i;
 416                 for(i = entries.begin(); i != entries.end(); ++i)
 417                         i.value()->flags |= ENTRY_FLAG_READ | ENTRY_FLAG_LOCKED;
 418         }
 419
 420         emit allReadChanged();
 421 }
 422
 423 static bool compareEntryItems(const Entry *e1, const Entry *e2) {
 424         return e1->published > e2->published;
 425 }
 426
 427 QList<Entry *> Feed::getEntries() {
 428         QList<Entry *> list = entries.values();
 429         qSort(list.begin(), list.end(), compareEntryItems);
 430         return list;
 431 }
 432
 433 /* TODO: Remove the duplicate code in changing stated */
 434
 435 void Entry::markRead(bool mark_read) {
 436         /* Check if the read flag differs from the requested state */
 437         if(((flags & ENTRY_FLAG_READ) != 0) == mark_read)
 438                 return;
 439
 440         /* Cannot mark an item unread if it's locked */
 441         if((flags & ENTRY_FLAG_LOCKED) && !mark_read)
 442                 return;
 443
 444         QNetworkRequest request;
 445         request.setRawHeader("Authorization", feed->reader->getAuth());
 446         request.setUrl(feed->reader->edittag_url);
 447
 448         postread.open(QBuffer::ReadWrite | QBuffer::Truncate);
 449         postread.write("i=");
 450         postread.write(QUrl::toPercentEncoding(id));
 451         if(mark_read)
 452                 postread.write("&a=");
 453         else
 454                 postread.write("&r=");
 455         postread.write(QUrl::toPercentEncoding("user/-/state/com.google/read"));
 456         postread.write("&ac=edit-tags&T=");
 457         postread.write(QUrl::toPercentEncoding(feed->reader->token));
 458         postread.seek(0);
 459         feed->reader->manager.post(request, &postread);
 460
 461         feed->updateUnread(mark_read ? -1 : 1);
 462
 463         if(mark_read)
 464                 flags |= ENTRY_FLAG_READ;
 465         else
 466                 flags &= ~ENTRY_FLAG_READ;
 467 }
 468
 469 void Entry::markStar(bool mark_star) {
 470         /* Check if the starred flag differs from the requested state */
 471         if(((flags & ENTRY_FLAG_STARRED) != 0) == mark_star)
 472                 return;
 473
 474         QNetworkRequest request;
 475         request.setRawHeader("Authorization", feed->reader->getAuth());
 476         request.setUrl(feed->reader->edittag_url);
 477
 478         poststar.open(QBuffer::ReadWrite | QBuffer::Truncate);
 479         poststar.write("i=");
 480         poststar.write(QUrl::toPercentEncoding(id));
 481         if(mark_star)
 482                 poststar.write("&a=");
 483         else
 484                 poststar.write("&r=");
 485         poststar.write(QUrl::toPercentEncoding("user/-/state/com.google/starred"));
 486         poststar.write("&ac=edit-tags&T=");
 487         poststar.write(QUrl::toPercentEncoding(feed->reader->token));
 488         poststar.seek(0);
 489         feed->reader->manager.post(request, &poststar);
 490
 491         Feed *starred = feed->reader->feeds.value("user/-/state/com.google/starred");
 492
 493         if(mark_star) {
 494                 starred->addEntry(this);
 495                 flags |= ENTRY_FLAG_STARRED;
 496         }
 497         else {
 498                 starred->delEntry(this);
 499                 flags &= ~ENTRY_FLAG_STARRED;
 500         }
 501 }
 502
 503 void Entry::markShared(bool mark_shared) {
 504         /* Check if the shared flag differs from the requested state */
 505         if(((flags & ENTRY_FLAG_SHARED) != 0) == mark_shared)
 506                 return;
 507
 508         QNetworkRequest request;
 509         request.setRawHeader("Authorization", feed->reader->getAuth());
 510         request.setUrl(feed->reader->edittag_url);
 511
 512         postshared.open(QBuffer::ReadWrite | QBuffer::Truncate);
 513         postshared.write("i=");
 514         postshared.write(QUrl::toPercentEncoding(id));
 515         if(mark_shared)
 516                 postshared.write("&a=");
 517         else
 518                 postshared.write("&r=");
 519         postshared.write(QUrl::toPercentEncoding("user/-/state/com.google/broadcast"));
 520         postshared.write("&ac=edit-tags&T=");
 521         postshared.write(QUrl::toPercentEncoding(feed->reader->token));
 522         postshared.seek(0);
 523         feed->reader->manager.post(request, &postshared);
 524
 525         Feed *shared = feed->reader->feeds.value("user/-/state/com.google/broadcast");
 526
 527         if(mark_shared) {
 528                 shared->addEntry(this);
 529                 flags |= ENTRY_FLAG_SHARED;
 530         }
 531         else {
 532                 shared->delEntry(this);
 533                 flags &= ~ENTRY_FLAG_SHARED;
 534         }
 535 }