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