backend.php

   1 <?php
   2         /* remove ill effects of magic quotes */
   3
   4         if (get_magic_quotes_gpc()) {
   5                 function stripslashes_deep($value) {
   6                         $value = is_array($value) ?
   7                                 array_map('stripslashes_deep', $value) : stripslashes($value);
   8                                 return $value;
   9                 }
  10
  11                 $_POST = array_map('stripslashes_deep', $_POST);
  12                 $_GET = array_map('stripslashes_deep', $_GET);
  13                 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
  14                 $_REQUEST = array_map('stripslashes_deep', $_REQUEST);
  15         }
  16
  17         require_once "functions.php";
  18         require_once "sessions.php";
  19         require_once "modules/backend-rpc.php";
  20         require_once "sanity_check.php";
  21         require_once "config.php";
  22         require_once "db.php";
  23         require_once "db-prefs.php";
  24
  25         no_cache_incantation();
  26
  27         startup_gettext();
  28
  29         $script_started = getmicrotime();
  30
  31         $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  32
  33         if (!$link) {
  34                 if (DB_TYPE == "mysql") {
  35                         print mysql_error();
  36                 }
  37                 // PG seems to display its own errors just fine by default.
  38                 return;
  39         }
  40
  41         init_connection($link);
  42
  43         $op = $_REQUEST["op"];
  44         $subop = $_REQUEST["subop"];
  45         $mode = $_REQUEST["mode"];
  46
  47         $print_exec_time = false;
  48
  49         if ((!$op || $op == "rss" || $op == "dlg") && !$_REQUEST["noxml"]) {
  50                         header("Content-Type: application/xml; charset=utf-8");
  51         } else {
  52                         header("Content-Type: text/plain; charset=utf-8");
  53         }
  54
  55         if (ENABLE_GZIP_OUTPUT) {
  56                 ob_start("ob_gzhandler");
  57         }
  58
  59         if (SINGLE_USER_MODE) {
  60                 authenticate_user($link, "admin", null);
  61         }
  62
  63         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds" &&
  64                         $op != "rss" && $op != "getUnread" && $op != "getProfiles" &&
  65                         $op != "pubsub") {
  66
  67                 header("Content-Type: text/plain");
  68                 print json_encode(array("error" => array("code" => 6)));
  69                 return;
  70         }
  71
  72         $purge_intervals = array(
  73                 0  => __("Use default"),
  74                 -1 => __("Never purge"),
  75                 5  => __("1 week old"),
  76                 14 => __("2 weeks old"),
  77                 31 => __("1 month old"),
  78                 60 => __("2 months old"),
  79                 90 => __("3 months old"));
  80
  81         $update_intervals = array(
  82                 0   => __("Default interval"),
  83                 -1  => __("Disable updates"),
  84                 15  => __("Each 15 minutes"),
  85                 30  => __("Each 30 minutes"),
  86                 60  => __("Hourly"),
  87                 240 => __("Each 4 hours"),
  88                 720 => __("Each 12 hours"),
  89                 1440 => __("Daily"),
  90                 10080 => __("Weekly"));
  91
  92         $update_intervals_nodefault = array(
  93                 -1  => __("Disable updates"),
  94                 15  => __("Each 15 minutes"),
  95                 30  => __("Each 30 minutes"),
  96                 60  => __("Hourly"),
  97                 240 => __("Each 4 hours"),
  98                 720 => __("Each 12 hours"),
  99                 1440 => __("Daily"),
 100                 10080 => __("Weekly"));
 101
 102         $update_methods = array(
 103                 0   => __("Default"),
 104                 1   => __("Magpie"),
 105                 2   => __("SimplePie"),
 106                 3   => __("Twitter OAuth"));
 107
 108         if (DEFAULT_UPDATE_METHOD == "1") {
 109                 $update_methods[0] .= ' (SimplePie)';
 110         } else {
 111                 $update_methods[0] .= ' (Magpie)';
 112         }
 113
 114         $access_level_names = array(
 115                 0 => __("User"),
 116                 5 => __("Power User"),
 117                 10 => __("Administrator"));
 118
 119         require_once "modules/pref-prefs.php";
 120         require_once "modules/popup-dialog.php";
 121         require_once "modules/help.php";
 122         require_once "modules/pref-feeds.php";
 123         require_once "modules/pref-filters.php";
 124         require_once "modules/pref-labels.php";
 125         require_once "modules/pref-users.php";
 126
 127         $error = sanity_check($link);
 128
 129         if ($error['code'] != 0) {
 130                 print json_encode(array("error" => $error));
 131                 return;
 132         }
 133
 134         switch($op) { // Select action according to $op value.
 135                 case "rpc":
 136                         // Handle remote procedure calls.
 137                         handle_rpc_request($link);
 138                 break; // rpc
 139
 140                 case "feeds":
 141                         $subop = $_REQUEST["subop"];
 142                         $root = (bool)$_REQUEST["root"];
 143
 144                         switch($subop) {
 145                                 case "catchupAll":
 146                                         db_query($link, "UPDATE ttrss_user_entries SET
 147                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 148                                         ccache_zero_all($link, $_SESSION["uid"]);
 149
 150                                 break;
 151
 152                                 case "collapse":
 153                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 154                                         $mode = (int) db_escape_string($_REQUEST['mode']);
 155                                         toggle_collapse_cat($link, $cat_id, $mode);
 156                                         return;
 157                                 break;
 158                         }
 159
 160                         if (!$root) {
 161                                 print json_encode(outputFeedList($link));
 162                         } else {
 163
 164                                 $feeds = outputFeedList($link, false);
 165
 166                                 $root = array();
 167                                 $root['id'] = 'root';
 168                                 $root['name'] = __('Feeds');
 169                                 $root['items'] = $feeds['items'];
 170
 171                                 $fl = array();
 172                                 $fl['identifier'] = 'id';
 173                                 $fl['label'] = 'name';
 174                                 $fl['items'] = array($root);
 175
 176                                 print json_encode($fl);
 177                         }
 178
 179                 break; // feeds
 180
 181                 case "la":
 182                         $id = db_escape_string($_REQUEST['id']);
 183
 184                         $result = db_query($link, "SELECT link FROM ttrss_entries, ttrss_user_entries
 185                                 WHERE id = '$id' AND id = ref_id AND owner_uid = '".$_SESSION['uid']."'");
 186
 187                         if (db_num_rows($result) == 1) {
 188                                 $article_url = db_fetch_result($result, 0, 'link');
 189                                 $article_url = str_replace("\n", "", $article_url);
 190
 191                                 header("Location: $article_url");
 192                                 return;
 193
 194                         } else {
 195                                 print_error(__("Article not found."));
 196                         }
 197                 break;
 198
 199                 case "view":
 200
 201                         $id = db_escape_string($_REQUEST["id"]);
 202                         $cids = split(",", db_escape_string($_REQUEST["cids"]));
 203                         $mode = db_escape_string($_REQUEST["mode"]);
 204                         $omode = db_escape_string($_REQUEST["omode"]);
 205
 206                         // in prefetch mode we only output requested cids, main article
 207                         // just gets marked as read (it already exists in client cache)
 208
 209                         $articles = array();
 210
 211                         if ($mode == "") {
 212                                 array_push($articles, format_article($link, $id, false));
 213                         } else if ($mode == "zoom") {
 214                                 array_push($articles, format_article($link, $id, false, true, true));
 215                         } else {
 216                                 catchupArticleById($link, $id, 0);
 217                         }
 218
 219                         if (!$_SESSION["bw_limit"]) {
 220                                 foreach ($cids as $cid) {
 221                                         if ($cid) {
 222                                                 array_push($articles, format_article($link, $cid, false, false));
 223                                         }
 224                                 }
 225                         }
 226
 227                         print json_encode($articles);
 228
 229                 break; // view
 230
 231                 case "viewfeed":
 232
 233                         $timing_info = getmicrotime();
 234
 235                         $reply = array();
 236
 237                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 238
 239                         $omode = db_escape_string($_REQUEST["omode"]);
 240
 241                         $feed = db_escape_string($_REQUEST["feed"]);
 242                         $subop = db_escape_string($_REQUEST["subop"]);
 243                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 244                         $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
 245                         @$cat_view = db_escape_string($_REQUEST["cat"]);
 246                         @$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 247                         @$offset = db_escape_string($_REQUEST["skip"]);
 248                         @$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 249                         $order_by = db_escape_string($_REQUEST["order_by"]);
 250
 251                         /* Feed -5 is a special case: it is used to display auxiliary information
 252                          * when there's nothing to load - e.g. no stuff in fresh feed */
 253
 254                         if ($feed == -5) {
 255                                 print json_encode(generate_dashboard_feed($link));
 256                                 return;
 257                         }
 258
 259                         $result = false;
 260
 261                         if ($feed < -10) {
 262                                 $label_feed = -11-$feed;
 263                                 $result = db_query($link, "SELECT id FROM ttrss_labels2 WHERE
 264                                         id = '$label_feed' AND owner_uid = " . $_SESSION['uid']);
 265                         } else if (!$cat_view && $feed > 0) {
 266                                 $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE
 267                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 268                         } else if ($cat_view && $feed > 0) {
 269                                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE
 270                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 271                         }
 272
 273                         if ($result && db_num_rows($result) == 0) {
 274                                 print json_encode(generate_error_feed($link, __("Feed not found.")));
 275                                 return;
 276                         }
 277
 278                         /* Updating a label ccache means recalculating all of the caches
 279                          * so for performance reasons we don't do that here */
 280
 281                         if ($feed >= 0) {
 282                                 ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 283                         }
 284
 285                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 286                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 287                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 288
 289                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 290                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 291                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 292                         }
 293
 294                         $reply['headlines'] = array();
 295
 296                         if (!$next_unread_feed)
 297                                 $reply['headlines']['id'] = $feed;
 298                         else
 299                                 $reply['headlines']['id'] = $next_unread_feed;
 300
 301                         $reply['headlines']['is_cat'] = (bool) $cat_view;
 302
 303                         $override_order = false;
 304
 305                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
 306                                 $date_sort_field = "updated";
 307                         } else {
 308                                 $date_sort_field = "date_entered";
 309                         }
 310
 311                         switch ($order_by) {
 312                                 case "date":
 313                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 314                                                 $override_order = "$date_sort_field";
 315                                         } else {
 316                                                 $override_order = "$date_sort_field DESC";
 317                                         }
 318                                         break;
 319
 320                                 case "title":
 321                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 322                                                 $override_order = "title DESC, $date_sort_field";
 323                                         } else {
 324                                                 $override_order = "title, $date_sort_field DESC";
 325                                         }
 326                                         break;
 327
 328                                 case "score":
 329                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 330                                                 $override_order = "score, $date_sort_field";
 331                                         } else {
 332                                                 $override_order = "score DESC, $date_sort_field DESC";
 333                                         }
 334                                         break;
 335                         }
 336
 337                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);
 338
 339                         $ret = format_headlines_list($link, $feed, $subop,
 340                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 341                                 $vgroup_last_feed, $override_order);
 342
 343                         $topmost_article_ids = $ret[0];
 344                         $headlines_count = $ret[1];
 345                         $returned_feed = $ret[2];
 346                         $disable_cache = $ret[3];
 347                         $vgroup_last_feed = $ret[4];
 348
 349                         $reply['headlines']['content'] = $ret[5];
 350                         $reply['headlines']['toolbar'] = $ret[6];
 351
 352                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);
 353
 354                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 355                                         $cat_view, true);
 356
 357                         if ($headlines_unread == -1) {
 358                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 359                         }
 360
 361                         $reply['headlines-info'] = array("count" => (int) $headlines_count,
 362                                 "vgroup_last_feed" => $vgroup_last_feed,
 363                                 "unread" => (int) $headlines_unread,
 364                                 "disable_cache" => (bool) $disable_cache);
 365
 366                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 367
 368                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 369                                 $articles = array();
 370
 371                                 foreach ($topmost_article_ids as $id) {
 372                                         array_push($articles, format_article($link, $id, $feed, false));
 373                                 }
 374
 375                                 $reply['articles'] = $articles;
 376                         }
 377
 378                         if ($subop) {
 379                                 $reply['counters'] = getAllCounters($link, $omode, $feed);
 380                         }
 381
 382                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 383
 384                         $reply['runtime-info'] = make_runtime_info($link);
 385
 386                         print json_encode($reply);
 387
 388                 break; // viewfeed
 389
 390                 case "pref-feeds":
 391                         module_pref_feeds($link);
 392                 break; // pref-feeds
 393
 394                 case "pref-filters":
 395                         module_pref_filters($link);
 396                 break; // pref-filters
 397
 398                 case "pref-labels":
 399                         module_pref_labels($link);
 400                 break; // pref-labels
 401
 402                 case "pref-prefs":
 403                         module_pref_prefs($link);
 404                 break; // pref-prefs
 405
 406                 case "pref-users":
 407                         module_pref_users($link);
 408                 break; // prefs-users
 409
 410                 case "help":
 411                         module_help($link);
 412                 break; // help
 413
 414                 case "dlg":
 415                         module_popup_dialog($link);
 416                 break; // dlg
 417
 418                 case "pref-pub-items":
 419                         module_pref_pub_items($link);
 420                 break; // pref-pub-items
 421
 422                 case "globalUpdateFeeds":
 423                         // Update all feeds needing a update.
 424                         update_daemon_common($link, 0, true, true);
 425                 break; // globalUpdateFeeds
 426
 427                 case "pref-feed-browser":
 428                         module_pref_feed_browser($link);
 429                 break; // pref-feed-browser
 430
 431                 case "rss":
 432                         $feed = db_escape_string($_REQUEST["id"]);
 433                         $key = db_escape_string($_REQUEST["key"]);
 434                         $is_cat = $_REQUEST["is_cat"] != false;
 435                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 436
 437                         $search = db_escape_string($_REQUEST["q"]);
 438                         $match_on = db_escape_string($_REQUEST["m"]);
 439                         $search_mode = db_escape_string($_REQUEST["smode"]);
 440                         $view_mode = db_escape_string($_REQUEST["view-mode"]);
 441
 442                         if (SINGLE_USER_MODE) {
 443                                 authenticate_user($link, "admin", null);
 444                         }
 445
 446                         $owner_id = false;
 447
 448                         if ($key) {
 449                                 $result = db_query($link, "SELECT owner_uid FROM
 450                                         ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
 451
 452                                 if (db_num_rows($result) == 1)
 453                                         $owner_id = db_fetch_result($result, 0, "owner_uid");
 454                         }
 455
 456                         if ($owner_id) {
 457                                 $_SESSION['uid'] = $owner_id;
 458
 459                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 460                                         $search, $search_mode, $match_on, $view_mode);
 461                         } else {
 462                                 header('HTTP/1.1 403 Forbidden');
 463                         }
 464                 break; // rss
 465
 466                 case "getUnread":
 467                         $login = db_escape_string($_REQUEST["login"]);
 468                         $fresh = $_REQUEST["fresh"] == "1";
 469
 470                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 471
 472                         if (db_num_rows($result) == 1) {
 473                                 $uid = db_fetch_result($result, 0, "id");
 474
 475                                 print getGlobalUnread($link, $uid);
 476
 477                                 if ($fresh) {
 478                                         print ";";
 479                                         print getFeedArticles($link, -3, false, true, $uid);
 480                                 }
 481
 482                         } else {
 483                                 print "-1;User not found";
 484                         }
 485
 486                         $print_exec_time = false;
 487                 break; // getUnread
 488
 489                 case "digestTest":
 490                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 491                         $print_exec_time = false;
 492                 break; // digestTest
 493
 494                 case "digestSend":
 495                         send_headlines_digests($link);
 496                         $print_exec_time = false;
 497                 break; // digestSend
 498
 499                 case "loading":
 500                         print __("Loading, please wait...") . " " .
 501                                 "<img src='images/indicator_tiny.gif'>";
 502
 503                 case "getProfiles":
 504                         $login = db_escape_string($_REQUEST["login"]);
 505                         $password = db_escape_string($_REQUEST["password"]);
 506
 507                         if (authenticate_user($link, $login, $password)) {
 508                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
 509                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 510
 511                                 print "<select style='width: 100%' name='profile'>";
 512
 513                                 print "<option value='0'>" . __("Default profile") . "</option>";
 514
 515                                 while ($line = db_fetch_assoc($result)) {
 516                                         $id = $line["id"];
 517                                         $title = $line["title"];
 518
 519                                         print "<option value='$id'>$title</option>";
 520                                 }
 521
 522                                 print "</select>";
 523
 524                                 $_SESSION = array();
 525                         }
 526                 break;
 527
 528                 case "pubsub":
 529                         $mode = db_escape_string($_REQUEST['hub_mode']);
 530                         $feed_id = db_escape_string($_REQUEST['id']);
 531                         $feed_url = db_escape_string($_REQUEST['hub_topic']);
 532
 533                         // TODO: implement hub_verifytoken checking
 534
 535                         $result = db_query($link, "SELECT feed_url FROM ttrss_feeds
 536                                 WHERE id = '$feed_id'");
 537
 538                         $check_feed_url = db_fetch_result($result, 0, "feed_url");
 539
 540                         if ($check_feed_url && ($check_feed_url == $feed_url || !$feed_url)) {
 541                                 if ($mode == "subscribe") {
 542
 543                                         db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 2
 544                                                 WHERE id = '$feed_id'");
 545
 546                                         echo $_REQUEST['hub_challenge'];
 547                                 } else if ($mode == "unsubscribe") {
 548
 549                                         db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 0
 550                                                 WHERE id = '$feed_id'");
 551
 552                                         echo $_REQUEST['hub_challenge'];
 553                                 } else if (!$mode) {
 554
 555                                         // Received update ping, schedule feed update.
 556
 557                                         update_rss_feed($link, $feed_id, true, true);
 558
 559                                 }
 560                         } else {
 561                                 header('HTTP/1.0 404 Not Found');
 562                         }
 563
 564                 break;
 565         } // Select action according to $op value.
 566
 567         // We close the connection to database.
 568         db_close($link);
 569 ?>
 570
 571 <?php if ($print_exec_time) { ?>
 572 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 573 <?php } ?>