backend.php

   1 <?php
   2         error_reporting(E_ERROR | E_WARNING | E_PARSE);
   3
   4         /* remove ill effects of magic quotes */
   5
   6         if (get_magic_quotes_gpc()) {
   7                 $_GET = array_map('stripslashes', $_GET);
   8                 $_POST = array_map('stripslashes', $_POST);
   9                 $_REQUEST = array_map('stripslashes', $_REQUEST);
  10                 $_COOKIE = array_map('stripslashes', $_COOKIE);
  11         }
  12
  13         require_once "sessions.php";
  14         require_once "modules/backend-rpc.php";
  15
  16 /*      if ($_GET["debug"]) {
  17                 define('DEFAULT_ERROR_LEVEL', E_ALL);
  18         } else {
  19                 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
  20         }
  21
  22         error_reporting(DEFAULT_ERROR_LEVEL); */
  23
  24         require_once "sanity_check.php";
  25         require_once "config.php";
  26
  27         require_once "db.php";
  28         require_once "db-prefs.php";
  29         require_once "functions.php";
  30
  31         no_cache_incantation();
  32
  33         if (ENABLE_TRANSLATIONS == true) {
  34                 startup_gettext();
  35         }
  36
  37         $script_started = getmicrotime();
  38
  39         $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  40
  41         if (!$link) {
  42                 if (DB_TYPE == "mysql") {
  43                         print mysql_error();
  44                 }
  45                 // PG seems to display its own errors just fine by default.
  46                 return;
  47         }
  48
  49         init_connection($link);
  50
  51         $op = $_REQUEST["op"];
  52
  53         $print_exec_time = false;
  54
  55         if ((!$op || $op == "rpc" || $op == "rss" || $op == "view" ||
  56                         $op == "digestSend" || $op == "viewfeed" || $op == "publish" ||
  57                         $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
  58                                 header("Content-Type: application/xml; charset=utf-8");
  59
  60                                 if (ENABLE_GZIP_OUTPUT) {
  61                                         ob_start("ob_gzhandler");
  62                                 }
  63
  64                 } else {
  65                 if (!$_REQUEST["noxml"]) {
  66                         header("Content-Type: text/html; charset=utf-8");
  67                 } else {
  68                         header("Content-Type: text/plain; charset=utf-8");
  69                 }
  70         }
  71
  72         if (!$op) {
  73                 header("Content-Type: application/xml");
  74                 print_error_xml(7); exit;
  75         }
  76
  77         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  78                         && $op != "rss" && $op != "getUnread" && $op != "publish") {
  79
  80                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  81                         print_error_xml(6); die;
  82                 } else {
  83                         print "
  84                         <html><body>
  85                                 <p>Error: Not logged in.</p>
  86                                 <script type=\"text/javascript\">
  87                                         if (parent.window != 'undefined') {
  88                                                 parent.window.location = \"tt-rss.php\";
  89                                         } else {
  90                                                 window.location = \"tt-rss.php\";
  91                                         }
  92                                 </script>
  93                         </body></html>
  94                         ";
  95                 }
  96                 exit;
  97         }
  98
  99         $purge_intervals = array(
 100                 0  => __("Use default"),
 101                 -1 => __("Never purge"),
 102                 5  => __("1 week old"),
 103                 14 => __("2 weeks old"),
 104                 31 => __("1 month old"),
 105                 60 => __("2 months old"),
 106                 90 => __("3 months old"));
 107
 108         $update_intervals = array(
 109                 0   => __("Default interval"),
 110                 -1  => __("Disable updates"),
 111                 15  => __("Each 15 minutes"),
 112                 30  => __("Each 30 minutes"),
 113                 60  => __("Hourly"),
 114                 240 => __("Each 4 hours"),
 115                 720 => __("Each 12 hours"),
 116                 1440 => __("Daily"),
 117                 10080 => __("Weekly"));
 118
 119         $update_methods = array(
 120                 0   => __("Default"),
 121                 1   => __("Magpie"),
 122                 2   => __("SimplePie"));
 123
 124         if (ENABLE_SIMPLEPIE) {
 125                 $update_methods[0] .= ' (SimplePie)';
 126         } else {
 127                 $update_methods[0] .= ' (Magpie)';
 128         }
 129
 130         $access_level_names = array(
 131                 0 => __("User"),
 132                 5 => __("Power User"),
 133                 10 => __("Administrator"));
 134
 135         require_once "modules/pref-prefs.php";
 136         require_once "modules/popup-dialog.php";
 137         require_once "modules/help.php";
 138         require_once "modules/pref-feeds.php";
 139         require_once "modules/pref-filters.php";
 140         require_once "modules/pref-labels.php";
 141         require_once "modules/pref-users.php";
 142         require_once "modules/pref-feed-browser.php";
 143
 144         if (!sanity_check($link)) { return; }
 145
 146         switch($op) { // Select action according to $op value.
 147                 case "rpc":
 148                         // Handle remote procedure calls.
 149                         handle_rpc_request($link);
 150                 break; // rpc
 151
 152                 case "feeds":
 153                         if (ENABLE_GZIP_OUTPUT) {
 154                                 ob_start("ob_gzhandler");
 155                         }
 156
 157                         $tags = $_GET["tags"];
 158
 159                         $subop = $_GET["subop"];
 160
 161                         switch($subop) {
 162                                 case "catchupAll":
 163                                         db_query($link, "UPDATE ttrss_user_entries SET
 164                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 165                                 break;
 166
 167                                 case "collapse":
 168                                         $cat_id = db_escape_string($_GET["cid"]);
 169
 170                                         db_query($link, "UPDATE ttrss_feed_categories SET
 171                                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 172                                                 $_SESSION["uid"]);
 173                                         return;
 174                                 break;
 175
 176                                 case "catsortreset":
 177                                         db_query($link, "UPDATE ttrss_feed_categories
 178                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 179                                         return;
 180                                 break;
 181
 182                                 case "catsort":
 183                                         $corder = db_escape_string($_GET["corder"]);
 184
 185                                         $cats = split(",", $corder);
 186
 187                                         for ($i = 0; $i < count($cats); $i++) {
 188                                                 $cat_id = $cats[$i];
 189
 190                                                 if ($cat_id > 0) {
 191                                                         db_query($link, "UPDATE ttrss_feed_categories
 192                                                                 SET order_id = '$i' WHERE id = '$cat_id' AND
 193                                                                 owner_uid = " . $_SESSION["uid"]);
 194                                                 }
 195                                         }
 196
 197                                         return;
 198                                 break;
 199
 200                         }
 201
 202                         outputFeedList($link, $tags);
 203                 break; // feeds
 204
 205                 case "view":
 206
 207                         $id = db_escape_string($_GET["id"]);
 208                         $feed_id = db_escape_string($_GET["feed"]);
 209                         $cids = split(",", db_escape_string($_GET["cids"]));
 210                         $mode = db_escape_string($_GET["mode"]);
 211                         $omode = db_escape_string($_GET["omode"]);
 212
 213                         $csync = $_GET["csync"];
 214
 215                         print "<reply>";
 216
 217                         // in prefetch mode we only output requested cids, main article
 218                         // just gets marked as read (it already exists in client cache)
 219
 220                         if ($mode == "") {
 221                                 outputArticleXML($link, $id, $feed_id);
 222                         } else if ($mode == "zoom") {
 223                                 outputArticleXML($link, $id, $feed_id, true, true);
 224                         } else {
 225                                 catchupArticleById($link, $id, 0);
 226                         }
 227
 228                         if (!$_SESSION["bw_limit"]) {
 229                                 foreach ($cids as $cid) {
 230                                         if ($cid) {
 231                                                 outputArticleXML($link, $cid, $feed_id, false);
 232                                         }
 233                                 }
 234                         }
 235
 236
 237                         if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
 238                                 print "<counters>";
 239                                 getAllCounters($link, $omode);
 240                                 print "</counters>";
 241                         }
 242
 243                         print "</reply>";
 244                 break; // view
 245
 246                 case "viewfeed":
 247
 248                         $print_exec_time = true;
 249                         $timing_info = getmicrotime();
 250
 251                         print "<reply>";
 252
 253                         if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 254
 255                         $omode = db_escape_string($_GET["omode"]);
 256
 257                         $feed = db_escape_string($_GET["feed"]);
 258                         $subop = db_escape_string($_GET["subop"]);
 259                         $view_mode = db_escape_string($_GET["view_mode"]);
 260                         $limit = db_escape_string($_GET["limit"]);
 261                         $cat_view = db_escape_string($_GET["cat"]);
 262                         $next_unread_feed = db_escape_string($_GET["nuf"]);
 263                         $offset = db_escape_string($_GET["skip"]);
 264                         $vgroup_last_feed = db_escape_string($_GET["vgrlf"]);
 265                         $csync = $_GET["csync"];
 266                         $order_by = db_escape_string($_GET["order_by"]);
 267
 268                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 269                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 270                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 271
 272                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 273                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 274                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 275                         }
 276
 277                         print "<headlines id=\"$feed\"><![CDATA[";
 278
 279                         if ($feed == -4) {
 280
 281                                 generate_dashboard_feed($link);
 282
 283                         } else {
 284
 285                                 $override_order = false;
 286
 287                                 switch ($order_by) {
 288                                         case "date":
 289                                                 if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 290                                                         $override_order = "updated";
 291                                                 } else {
 292                                                         $override_order = "updated DESC";
 293                                                 }
 294                                                 break;
 295
 296                                         case "title":
 297                                                 $override_order = "updated DESC";
 298                                                 break;
 299
 300                                         case "score":
 301                                                 $override_order = "score DESC";
 302                                                 break;
 303                                 }
 304
 305                                 $ret = outputHeadlinesList($link, $feed, $subop,
 306                                         $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 307                                         $vgroup_last_feed, $override_order);
 308
 309                                 $topmost_article_ids = $ret[0];
 310                                 $headlines_count = $ret[1];
 311                                 $returned_feed = $ret[2];
 312                                 $disable_cache = $ret[3];
 313                                 $vgroup_last_feed = $ret[4];
 314
 315                                 print "]]></headlines>";
 316
 317                                 print "<headlines-count value=\"$headlines_count\"/>";
 318                                 print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 319
 320                                 $headlines_unread = getFeedUnread($link, $returned_feed);
 321
 322                                 print "<headlines-unread value=\"$headlines_unread\"/>";
 323                                 printf("<disable-cache value=\"%d\"/>", $disable_cache);
 324
 325                                 if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 326
 327                                 if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 328                                         print "<articles>";
 329                                         foreach ($topmost_article_ids as $id) {
 330                                                 outputArticleXML($link, $id, $feed, false);
 331                                         }
 332                                         print "</articles>";
 333                                 }
 334                         }
 335
 336                         if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 337
 338                         $viewfeed_ctr_interval = 300;
 339
 340                         if ($csync || $_SESSION["bw_limit"]) {
 341                                 $viewfeed_ctr_interval = 60;
 342                         }
 343
 344                         if (get_pref($link, "SYNC_COUNTERS") ||
 345                                         time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
 346                                 print "<counters>";
 347                                 getAllCounters($link, $omode, $feed);
 348                                 print "</counters>";
 349                         }
 350
 351                         if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 352
 353                         print_runtime_info($link);
 354
 355                         print "</reply>";
 356                 break; // viewfeed
 357
 358                 case "pref-feeds":
 359                         module_pref_feeds($link);
 360                 break; // pref-feeds
 361
 362                 case "pref-filters":
 363                         module_pref_filters($link);
 364                 break; // pref-filters
 365
 366                 case "pref-labels":
 367                         module_pref_labels($link);
 368                 break; // pref-labels
 369
 370                 case "pref-prefs":
 371                         module_pref_prefs($link);
 372                 break; // pref-prefs
 373
 374                 case "pref-users":
 375                         module_pref_users($link);
 376                 break; // prefs-users
 377
 378                 case "help":
 379                         module_help($link);
 380                 break; // help
 381
 382                 case "dlg":
 383                         module_popup_dialog($link);
 384                 break; // dlg
 385
 386                 case "pref-pub-items":
 387                         module_pref_pub_items($link);
 388                 break; // pref-pub-items
 389
 390                 case "globalUpdateFeeds":
 391                         // update feeds of all users, may be used anonymously
 392
 393                         print "<!--";
 394                         // Update all feeds needing a update.
 395                         update_daemon_common($link, 0, true, true);
 396                         print " -->";
 397
 398                         // FIXME : old feed update way. To be removed.
 399                         //$result = db_query($link, "SELECT id FROM ttrss_users");
 400
 401                         //while ($line = db_fetch_assoc($result)) {
 402                         //      $user_id = $line["id"];
 403                         //      print "<!-- updating feeds of uid $user_id -->";
 404                         //      update_all_feeds($link, false, $user_id);
 405                         //}
 406
 407                         print "<rpc-reply>
 408                                 <message msg=\"All feeds updated\"/>
 409                         </rpc-reply>";
 410                 break; // globalUpdateFeeds
 411
 412                 case "pref-feed-browser":
 413                         module_pref_feed_browser($link);
 414                 break; // pref-feed-browser
 415
 416                 case "publish":
 417                         $key = db_escape_string($_GET["key"]);
 418
 419                         $result = db_query($link, "SELECT login, owner_uid
 420                                 FROM ttrss_user_prefs, ttrss_users WHERE
 421                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 422                                 value = '$key' AND
 423                                 ttrss_users.id = owner_uid");
 424
 425                         if (db_num_rows($result) == 1) {
 426                                 $owner = db_fetch_result($result, 0, "owner_uid");
 427                                 $login = db_fetch_result($result, 0, "login");
 428
 429                                 generate_syndicated_feed($link, $owner, -2, false);
 430
 431                         } else {
 432                                 print "<error>User not found</error>";
 433                         }
 434                 break; // publish
 435
 436                 case "rss":
 437                         $feed = db_escape_string($_GET["id"]);
 438                         $user = db_escape_string($_GET["user"]);
 439                         $pass = db_escape_string($_GET["pass"]);
 440                         $is_cat = $_GET["is_cat"] != false;
 441
 442                         $search = db_escape_string($_GET["q"]);
 443                         $match_on = db_escape_string($_GET["m"]);
 444                         $search_mode = db_escape_string($_GET["smode"]);
 445
 446                         if (!$_SESSION["uid"] && $user && $pass) {
 447                                 authenticate_user($link, $user, $pass);
 448                         }
 449
 450                         if ($_SESSION["uid"] ||
 451                                 http_authenticate_user($link)) {
 452
 453                                         generate_syndicated_feed($link, 0, $feed, $is_cat,
 454                                                 $search, $search_mode, $match_on);
 455                         }
 456                 break; // rss
 457
 458                 case "labelFromSearch":
 459                         $search = db_escape_string($_GET["search"]);
 460                         $search_mode = db_escape_string($_GET["smode"]);
 461                         $match_on = db_escape_string($_GET["match"]);
 462                         $is_cat = db_escape_string($_GET["is_cat"]);
 463                         $title = db_escape_string($_GET["title"]);
 464                         $feed = sprintf("%d", $_GET["feed"]);
 465
 466                         $label_qparts = array();
 467
 468                         $search_expr = getSearchSql($search, $match_on);
 469
 470                         if ($is_cat) {
 471                                 if ($feed != 0) {
 472                                         $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
 473                                 } else {
 474                                         $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 475                                 }
 476                         } else {
 477                                 if ($search_mode == "all_feeds") {
 478                                         // NOOP
 479                                 } else if ($search_mode == "this_cat") {
 480
 481                                         $tmp_result = db_query($link, "SELECT cat_id
 482                                                 FROM ttrss_feeds WHERE id = '$feed'");
 483
 484                                         $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
 485
 486                                         if ($cat_id > 0) {
 487                                                 $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
 488                                         } else {
 489                                                 $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 490                                         }
 491                                 } else {
 492                                         $search_expr .= " AND ttrss_feeds.id = $feed ";
 493                                 }
 494
 495                         }
 496
 497                         $search_expr = db_escape_string($search_expr);
 498
 499                         print $search_expr;
 500
 501                         if ($title) {
 502                                 $result = db_query($link,
 503                                         "INSERT INTO ttrss_labels (sql_exp,description,owner_uid)
 504                                         VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
 505                         }
 506                 break; // labelFromSearch
 507
 508                 case "getUnread":
 509                         $login = db_escape_string($_GET["login"]);
 510
 511                         header("Content-Type: text/plain; charset=utf-8");
 512
 513                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 514
 515                         if (db_num_rows($result) == 1) {
 516                                 $uid = db_fetch_result($result, 0, "id");
 517                                 print getGlobalUnread($link, $uid);
 518                         } else {
 519                                 print "-1;User not found";
 520                         }
 521
 522                         $print_exec_time = false;
 523                 break; // getUnread
 524
 525                 case "digestTest":
 526                         header("Content-Type: text/plain");
 527                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 528                         $print_exec_time = false;
 529                 break; // digestTest
 530
 531                 case "digestSend":
 532                         header("Content-Type: text/plain");
 533                         send_headlines_digests($link);
 534                         $print_exec_time = false;
 535                 break; // digestSend
 536
 537         } // Select action according to $op value.
 538
 539         // We close the connection to database.
 540         db_close($link);
 541 ?>
 542
 543 <?php if ($print_exec_time) { ?>
 544 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 545 <?php } ?>