classes/rpc.php

   1 <?php
   2 class RPC extends Handler_Protected {
   3
   4         function csrf_ignore($method) {
   5                 $csrf_ignored = array("sanitycheck", "completelabels", "saveprofile");
   6
   7                 return array_search($method, $csrf_ignored) !== false;
   8         }
   9
  10         function setprofile() {
  11                 $_SESSION["profile"] = $_REQUEST["id"];
  12
  13                 // default value
  14                 if (!$_SESSION["profile"]) $_SESSION["profile"] = null;
  15         }
  16
  17         function remprofiles() {
  18                 $ids = explode(",", trim($_REQUEST["ids"]));
  19
  20                 foreach ($ids as $id) {
  21                         if ($_SESSION["profile"] != $id) {
  22                                 $sth = $this->pdo->prepare("DELETE FROM ttrss_settings_profiles WHERE id = ? AND
  23                                                         owner_uid = ?");
  24                                 $sth->execute([$id, $_SESSION['uid']]);
  25                         }
  26                 }
  27         }
  28
  29         // Silent
  30         function addprofile() {
  31                 $title = trim($_REQUEST["title"]);
  32
  33                 if ($title) {
  34                         $this->pdo->beginTransaction();
  35
  36                         $sth = $this->pdo->prepare("SELECT id FROM ttrss_settings_profiles
  37                                 WHERE title = ? AND owner_uid = ?");
  38                         $sth->execute([$title, $_SESSION['uid']]);
  39
  40                         if (!$sth->fetch()) {
  41
  42                                 $sth = $this->pdo->prepare("INSERT INTO ttrss_settings_profiles (title, owner_uid)
  43                                                         VALUES (?, ?)");
  44
  45                                 $sth->execute([$title, $_SESSION['uid']]);
  46
  47                                 $sth = $this->pdo->prepare("SELECT id FROM ttrss_settings_profiles WHERE
  48                                         title = ? AND owner_uid = ?");
  49                                 $sth->execute([$title, $_SESSION['uid']]);
  50
  51                                 if ($row = $sth->fetch()) {
  52                                         $profile_id = $row['id'];
  53
  54                                         if ($profile_id) {
  55                                                 initialize_user_prefs($_SESSION["uid"], $profile_id);
  56                                         }
  57                                 }
  58                         }
  59
  60                         $this->pdo->commit();
  61                 }
  62         }
  63
  64         function saveprofile() {
  65                 $id = $_REQUEST["id"];
  66                 $title = trim($_REQUEST["value"]);
  67
  68                 if ($id == 0) {
  69                         print __("Default profile");
  70                         return;
  71                 }
  72
  73                 if ($title) {
  74                         $sth = $this->pdo->prepare("UPDATE ttrss_settings_profiles
  75                                 SET title = ? WHERE id = ? AND
  76                                         owner_uid = ?");
  77
  78                         $sth->execute([$title, $id, $_SESSION['uid']]);
  79                         print $title;
  80                 }
  81         }
  82
  83         // Silent
  84         function remarchive() {
  85                 $ids = explode(",", $_REQUEST["ids"]);
  86
  87                 $sth = $this->pdo->prepare("DELETE FROM ttrss_archived_feeds WHERE
  88                                 (SELECT COUNT(*) FROM ttrss_user_entries
  89                                         WHERE orig_feed_id = :id) = 0 AND
  90                                                 id = :id AND owner_uid = :uid");
  91
  92                 foreach ($ids as $id) {
  93                         $sth->execute([":id" => $id, ":uid" => $_SESSION['uid']]);
  94                 }
  95         }
  96
  97         function addfeed() {
  98                 $feed = $_REQUEST['feed'];
  99                 $cat = $_REQUEST['cat'];
 100                 $login = $_REQUEST['login'];
 101                 $pass = trim($_REQUEST['pass']);
 102
 103                 $rc = Feeds::subscribe_to_feed($feed, $cat, $login, $pass);
 104
 105                 print json_encode(array("result" => $rc));
 106         }
 107
 108         function togglepref() {
 109                 $key = $_REQUEST["key"];
 110                 set_pref($key, !get_pref($key));
 111                 $value = get_pref($key);
 112
 113                 print json_encode(array("param" =>$key, "value" => $value));
 114         }
 115
 116         function setpref() {
 117                 // set_pref escapes input, so no need to double escape it here
 118                 $key = $_REQUEST['key'];
 119                 $value = str_replace("\n", "<br/>", $_REQUEST['value']);
 120
 121                 set_pref($key, $value, false, $key != 'USER_STYLESHEET');
 122
 123                 print json_encode(array("param" =>$key, "value" => $value));
 124         }
 125
 126         function mark() {
 127                 $mark = $_REQUEST["mark"];
 128                 $id = $_REQUEST["id"];
 129
 130                 $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET marked = ?,
 131                                         last_marked = NOW()
 132                                         WHERE ref_id = ? AND owner_uid = ?");
 133
 134                 $sth->execute([$mark, $id, $_SESSION['uid']]);
 135
 136                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 137         }
 138
 139         function delete() {
 140                 $ids = explode(",", $_REQUEST["ids"]);
 141                 $ids_qmarks = arr_qmarks($ids);
 142
 143                 $sth = $this->pdo->prepare("DELETE FROM ttrss_user_entries
 144                         WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 145                 $sth->execute(array_merge($ids, [$_SESSION['uid']]));
 146
 147                 Article::purge_orphans();
 148
 149                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 150         }
 151
 152         function unarchive() {
 153                 $ids = explode(",", $_REQUEST["ids"]);
 154
 155                 foreach ($ids as $id) {
 156                         $this->pdo->beginTransaction();
 157
 158                         $sth = $this->pdo->prepare("SELECT feed_url,site_url,title FROM ttrss_archived_feeds
 159                                 WHERE id = (SELECT orig_feed_id FROM ttrss_user_entries WHERE ref_id = :id
 160                                 AND owner_uid = :uid) AND owner_uid = :uid");
 161                         $sth->execute([":uid" => $_SESSION['uid'], ":id" => $id]);
 162
 163                         if ($row = $sth->fetch()) {
 164                                 $feed_url = $row['feed_url'];
 165                                 $site_url = $row['site_url'];
 166                                 $title = $row['title'];
 167
 168                                 $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE feed_url = ?
 169                                         AND owner_uid = ?");
 170                                 $sth->execute([$feed_url, $_SESSION['uid']]);
 171
 172                                 if ($row = $sth->fetch()) {
 173                                         $feed_id = $row["id"];
 174                                 } else {
 175                                         if (!$title) $title = '[Unknown]';
 176
 177                                         $sth = $this->pdo->prepare("INSERT INTO ttrss_feeds
 178                                                         (owner_uid,feed_url,site_url,title,cat_id,auth_login,auth_pass,update_method)
 179                                                         VALUES (?, ?, ?, ?, NULL, '', '', 0)");
 180                                         $sth->execute([$_SESSION['uid'], $feed_url, $site_url, $title]);
 181
 182                                         $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE feed_url = ?
 183                                                 AND owner_uid = ?");
 184                                         $sth->execute([$feed_url, $_SESSION['uid']]);
 185
 186                                         if ($row = $sth->fetch()) {
 187                                                 $feed_id = $row['id'];
 188                                         }
 189                                 }
 190
 191                                 if ($feed_id) {
 192                                         $sth = $this->pdo->prepare("UPDATE ttrss_user_entries
 193                                                 SET feed_id = ?, orig_feed_id = NULL
 194                                                 WHERE ref_id = ? AND owner_uid = ?");
 195                                         $sth->execute([$feed_id, $id, $_SESSION['uid']]);
 196                                 }
 197                         }
 198
 199                         $this->pdo->commit();
 200                 }
 201
 202                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 203         }
 204
 205         function archive() {
 206                 $ids = explode(",", $_REQUEST["ids"]);
 207
 208                 foreach ($ids as $id) {
 209                         $this->archive_article($id, $_SESSION["uid"]);
 210                 }
 211
 212                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 213         }
 214
 215         private function archive_article($id, $owner_uid) {
 216                 $this->pdo->beginTransaction();
 217
 218                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
 219
 220                 $sth = $this->pdo->prepare("SELECT feed_id FROM ttrss_user_entries
 221                         WHERE ref_id = ? AND owner_uid = ?");
 222                 $sth->execute([$id, $owner_uid]);
 223
 224                 if ($row = $sth->fetch()) {
 225
 226                         /* prepare the archived table */
 227
 228                         $feed_id = (int) $row['feed_id'];
 229
 230                         if ($feed_id) {
 231                                 $sth = $this->pdo->prepare("SELECT id FROM ttrss_archived_feeds
 232                                         WHERE id = ? AND owner_uid = ?");
 233                                 $sth->execute([$feed_id, $owner_uid]);
 234
 235                                 if ($row = $sth->fetch()) {
 236                                         $new_feed_id = $row['id'];
 237                                 } else {
 238                                         $row = $this->pdo->query("SELECT MAX(id) AS id FROM ttrss_archived_feeds")->fetch();
 239                                         $new_feed_id = (int)$row['id'] + 1;
 240
 241                                         $sth = $this->pdo->prepare("INSERT INTO ttrss_archived_feeds
 242                                                 (id, owner_uid, title, feed_url, site_url)
 243                                                         SELECT ?, owner_uid, title, feed_url, site_url from ttrss_feeds
 244                                                                 WHERE id = ?");
 245
 246                                         $sth->execute([$new_feed_id, $feed_id]);
 247                                 }
 248
 249                                 $sth = $this->pdo->prepare("UPDATE ttrss_user_entries
 250                                         SET orig_feed_id = ?, feed_id = NULL
 251                                         WHERE ref_id = ? AND owner_uid = ?");
 252                                 $sth->execute([$new_feed_id, $id, $owner_uid]);
 253                         }
 254                 }
 255
 256                 $this->pdo->commit();
 257         }
 258
 259         function publ() {
 260                 $pub = $_REQUEST["pub"];
 261                 $id = $_REQUEST["id"];
 262
 263                 $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
 264                         published = ?, last_published = NOW()
 265                         WHERE ref_id = ? AND owner_uid = ?");
 266
 267                 $sth->execute([$pub, $id, $_SESSION['uid']]);
 268
 269                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 270         }
 271
 272         function getAllCounters() {
 273                 $last_article_id = (int) $_REQUEST["last_article_id"];
 274
 275                 $reply = array();
 276
 277                 if (!empty($_REQUEST['seq'])) $reply['seq'] = (int) $_REQUEST['seq'];
 278
 279                 if ($last_article_id != Article::getLastArticleId()) {
 280                         $reply['counters'] = Counters::getAllCounters();
 281                 }
 282
 283                 $reply['runtime-info'] = make_runtime_info();
 284
 285                 print json_encode($reply);
 286         }
 287
 288         /* GET["cmode"] = 0 - mark as read, 1 - as unread, 2 - toggle */
 289         function catchupSelected() {
 290                 $ids = explode(",", $_REQUEST["ids"]);
 291                 $cmode = sprintf("%d", $_REQUEST["cmode"]);
 292
 293                 Article::catchupArticlesById($ids, $cmode);
 294
 295                 print json_encode(array("message" => "UPDATE_COUNTERS", "ids" => $ids));
 296         }
 297
 298         function markSelected() {
 299                 $ids = explode(",", $_REQUEST["ids"]);
 300                 $cmode = (int)$_REQUEST["cmode"];
 301
 302                 $this->markArticlesById($ids, $cmode);
 303
 304                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 305         }
 306
 307         function publishSelected() {
 308                 $ids = explode(",", $_REQUEST["ids"]);
 309                 $cmode = (int)$_REQUEST["cmode"];
 310
 311                 $this->publishArticlesById($ids, $cmode);
 312
 313                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 314         }
 315
 316         function sanityCheck() {
 317                 $_SESSION["hasAudio"] = $_REQUEST["hasAudio"] === "true";
 318                 $_SESSION["hasSandbox"] = $_REQUEST["hasSandbox"] === "true";
 319                 $_SESSION["hasMp3"] = $_REQUEST["hasMp3"] === "true";
 320                 $_SESSION["clientTzOffset"] = $_REQUEST["clientTzOffset"];
 321
 322                 $reply = array();
 323
 324                 $reply['error'] = sanity_check();
 325
 326                 if ($reply['error']['code'] == 0) {
 327                         $reply['init-params'] = make_init_params();
 328                         $reply['runtime-info'] = make_runtime_info(true);
 329                 }
 330
 331                 print json_encode($reply);
 332         }
 333
 334         function completeLabels() {
 335                 $search = $_REQUEST["search"];
 336
 337                 $sth = $this->pdo->query("SELECT DISTINCT caption FROM
 338                                 ttrss_labels2
 339                                 WHERE owner_uid = ? AND
 340                                 LOWER(caption) LIKE LOWER(?) ORDER BY caption
 341                                 LIMIT 5");
 342                 $sth->execute([$_SESSION['uid'], "%$search%"]);
 343
 344                 print "<ul>";
 345                 while ($line = $sth->fetch()) {
 346                         print "<li>" . $line["caption"] . "</li>";
 347                 }
 348                 print "</ul>";
 349         }
 350
 351         function purge() {
 352                 $ids = explode(",", $_REQUEST["ids"]);
 353                 $days = (int) $_REQUEST["days"];
 354
 355                 $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE
 356                                 id = ? AND owner_uid = ?");
 357
 358                 foreach ($ids as $id) {
 359                         $sth->execute([$id, $_SESSION['uid']]);
 360
 361                         if ($sth->fetch()) {
 362                                 purge_feed($id, $days);
 363                         }
 364                 }
 365         }
 366
 367         function updateFeedBrowser() {
 368                 if (defined('_DISABLE_FEED_BROWSER') && _DISABLE_FEED_BROWSER) return;
 369
 370                 $search = $_REQUEST["search"];
 371                 $limit = $_REQUEST["limit"];
 372                 $mode = (int) $_REQUEST["mode"];
 373
 374                 require_once "feedbrowser.php";
 375
 376                 print json_encode(array("content" =>
 377                         make_feed_browser($search, $limit, $mode),
 378                                 "mode" => $mode));
 379         }
 380
 381         // Silent
 382         function massSubscribe() {
 383
 384                 $payload = json_decode($_REQUEST["payload"], false);
 385                 $mode = $_REQUEST["mode"];
 386
 387                 if (!$payload || !is_array($payload)) return;
 388
 389                 if ($mode == 1) {
 390                         foreach ($payload as $feed) {
 391
 392                                 $title = $feed[0];
 393                                 $feed_url = $feed[1];
 394
 395                                 $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE
 396                                         feed_url = ? AND owner_uid = ?");
 397                                 $sth->execute([$feed_url, $_SESSION['uid']]);
 398
 399                                 if (!$sth->fetch()) {
 400                                         $sth = $this->pdo->prepare("INSERT INTO ttrss_feeds
 401                                                                         (owner_uid,feed_url,title,cat_id,site_url)
 402                                                                         VALUES (?, ?, ?, NULL, '')");
 403
 404                                         $sth->execute([$_SESSION['uid'], $feed_url, $title]);
 405                                 }
 406                         }
 407                 } else if ($mode == 2) {
 408                         // feed archive
 409                         foreach ($payload as $id) {
 410                                 $sth = $this->pdo->prepare("SELECT * FROM ttrss_archived_feeds
 411                                         WHERE id = ? AND owner_uid = ?");
 412                                 $sth->execute([$id, $_SESSION['uid']]);
 413
 414                                 if ($row = $sth->fetch()) {
 415                                         $site_url = $row['site_url'];
 416                                         $feed_url = $row['feed_url'];
 417                                         $title = $row['title'];
 418
 419                                         $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE
 420                                                 feed_url = ? AND owner_uid = ?");
 421                                         $sth->execute([$feed_url, $_SESSION['uid']]);
 422
 423                                         if (!$sth->fetch()) {
 424                                                 $sth = $this->pdo->prepare("INSERT INTO ttrss_feeds
 425                                                                 (owner_uid,feed_url,title,cat_id,site_url)
 426                                                                         VALUES (?, ?, ?, NULL, ?)");
 427
 428                                                 $sth->execute([$_SESSION['uid'], $feed_url, $title, $site_url]);
 429                                         }
 430                                 }
 431                         }
 432                 }
 433         }
 434
 435         function catchupFeed() {
 436                 $feed_id = $_REQUEST['feed_id'];
 437                 $is_cat = $_REQUEST['is_cat'] == "true";
 438                 $mode = $_REQUEST['mode'];
 439                 $search_query = $_REQUEST['search_query'];
 440                 $search_lang = $_REQUEST['search_lang'];
 441
 442                 Feeds::catchup_feed($feed_id, $is_cat, false, $mode, [$search_query, $search_lang]);
 443
 444                 print json_encode(array("message" => "UPDATE_COUNTERS"));
 445         }
 446
 447         function setpanelmode() {
 448                 $wide = (int) $_REQUEST["wide"];
 449
 450                 setcookie("ttrss_widescreen", $wide,
 451                         time() + COOKIE_LIFETIME_LONG);
 452
 453                 print json_encode(array("wide" => $wide));
 454         }
 455
 456         static function updaterandomfeed_real() {
 457
 458                 // Test if the feed need a update (update interval exceded).
 459                 if (DB_TYPE == "pgsql") {
 460                         $update_limit_qpart = "AND ((
 461                                         ttrss_feeds.update_interval = 0
 462                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
 463                                 ) OR (
 464                                         ttrss_feeds.update_interval > 0
 465                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
 466                                 ) OR ttrss_feeds.last_updated IS NULL
 467                                 OR last_updated = '1970-01-01 00:00:00')";
 468                 } else {
 469                         $update_limit_qpart = "AND ((
 470                                         ttrss_feeds.update_interval = 0
 471                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
 472                                 ) OR (
 473                                         ttrss_feeds.update_interval > 0
 474                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
 475                                 ) OR ttrss_feeds.last_updated IS NULL
 476                                 OR last_updated = '1970-01-01 00:00:00')";
 477                 }
 478
 479                 // Test if feed is currently being updated by another process.
 480                 if (DB_TYPE == "pgsql") {
 481                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '5 minutes')";
 482                 } else {
 483                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 5 MINUTE))";
 484                 }
 485
 486                 $random_qpart = sql_random_function();
 487
 488                 $pdo = Db::pdo();
 489
 490                 // we could be invoked from public.php with no active session
 491                 if ($_SESSION["uid"]) {
 492                         $owner_check_qpart = "AND ttrss_feeds.owner_uid = ".$pdo->quote($_SESSION["uid"]);
 493                 } else {
 494                         $owner_check_qpart = "";
 495                 }
 496
 497                 // We search for feed needing update.
 498                 $res = $pdo->query("SELECT ttrss_feeds.feed_url,ttrss_feeds.id
 499                         FROM
 500                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
 501                         WHERE
 502                                 ttrss_feeds.owner_uid = ttrss_users.id
 503                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
 504                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
 505                                 $owner_check_qpart
 506                                 $update_limit_qpart
 507                                 $updstart_thresh_qpart
 508                         ORDER BY $random_qpart LIMIT 30");
 509
 510                 $num_updated = 0;
 511
 512                 $tstart = time();
 513
 514                 while ($line = $res->fetch()) {
 515                         $feed_id = $line["id"];
 516
 517                         if (time() - $tstart < ini_get("max_execution_time") * 0.7) {
 518                                 RSSUtils::update_rss_feed($feed_id, true);
 519                                 ++$num_updated;
 520                         } else {
 521                                 break;
 522                         }
 523                 }
 524
 525                 // Purge orphans and cleanup tags
 526                 Article::purge_orphans();
 527                 //cleanup_tags(14, 50000);
 528
 529                 if ($num_updated > 0) {
 530                         print json_encode(array("message" => "UPDATE_COUNTERS",
 531                                 "num_updated" => $num_updated));
 532                 } else {
 533                         print json_encode(array("message" => "NOTHING_TO_UPDATE"));
 534                 }
 535
 536         }
 537
 538         function updaterandomfeed() {
 539                 RPC::updaterandomfeed_real();
 540         }
 541
 542         private function markArticlesById($ids, $cmode) {
 543
 544                 $ids_qmarks = arr_qmarks($ids);
 545
 546                 if ($cmode == 0) {
 547                         $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
 548                                 marked = false, last_marked = NOW()
 549                                         WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 550                 } else if ($cmode == 1) {
 551                         $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
 552                                 marked = true, last_marked = NOW()
 553                                         WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 554                 } else {
 555                         $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
 556                                 marked = NOT marked,last_marked = NOW()
 557                                         WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 558                 }
 559
 560                 $sth->execute(array_merge($ids, [$_SESSION['uid']]));
 561         }
 562
 563         private function publishArticlesById($ids, $cmode) {
 564
 565                 $ids_qmarks = arr_qmarks($ids);
 566
 567                 if ($cmode == 0) {
 568                         $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
 569                                 published = false, last_published = NOW()
 570                                         WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 571                 } else if ($cmode == 1) {
 572                         $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
 573                                 published = true, last_published = NOW()
 574                                         WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 575                 } else {
 576                         $sth = $this->pdo->prepare("UPDATE ttrss_user_entries SET
 577                                 published = NOT published,last_published = NOW()
 578                                         WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 579                 }
 580
 581                 $sth->execute(array_merge($ids, [$_SESSION['uid']]));
 582         }
 583
 584         function getlinktitlebyid() {
 585                 $id = $_REQUEST['id'];
 586
 587                 $sth = $this->pdo->prepare("SELECT link, title FROM ttrss_entries, ttrss_user_entries
 588                         WHERE ref_id = ? AND ref_id = id AND owner_uid = ?");
 589                 $sth->execute([$id, $_SESSION['uid']]);
 590
 591                 if ($row = $sth->fetch()) {
 592                         $link = $row['link'];
 593                         $title = $row['title'];
 594
 595                         echo json_encode(array("link" => $link, "title" => $title));
 596                 } else {
 597                         echo json_encode(array("error" => "ARTICLE_NOT_FOUND"));
 598                 }
 599         }
 600
 601         function log() {
 602                 $msg = $_REQUEST['msg'];
 603                 $file = basename($_REQUEST['file']);
 604                 $line = (int) $_REQUEST['line'];
 605                 $context = $_REQUEST['context'];
 606
 607                 if ($msg) {
 608                         Logger::get()->log_error(E_USER_WARNING,
 609                                 $msg, 'client-js:' . $file, $line, $context);
 610
 611                         echo json_encode(array("message" => "HOST_ERROR_LOGGED"));
 612                 } else {
 613                         echo json_encode(array("error" => "MESSAGE_NOT_FOUND"));
 614                 }
 615
 616         }
 617 }