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         $mode = $_REQUEST["mode"];
  53
  54         $print_exec_time = false;
  55
  56         if ((!$op || $op == "rpc" || $op == "rss" ||
  57                         ($op == "view" && $mode != "zoom") ||
  58                         $op == "digestSend" || $op == "viewfeed" || $op == "publish" ||
  59                         $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
  60                                 header("Content-Type: application/xml; charset=utf-8");
  61
  62                                 if (ENABLE_GZIP_OUTPUT) {
  63                                         ob_start("ob_gzhandler");
  64                                 }
  65
  66                 } else {
  67                 if (!$_REQUEST["noxml"]) {
  68                         header("Content-Type: text/html; charset=utf-8");
  69                 } else {
  70                         header("Content-Type: text/plain; charset=utf-8");
  71                 }
  72         }
  73
  74         if (!$op) {
  75                 header("Content-Type: application/xml");
  76                 print_error_xml(7); exit;
  77         }
  78
  79         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  80                         && $op != "rss" && $op != "getUnread" && $op != "publish") {
  81
  82                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  83                         print_error_xml(6); die;
  84                 } else {
  85                         print "
  86                         <html><body>
  87                                 <p>Error: Not logged in.</p>
  88                                 <script type=\"text/javascript\">
  89                                         if (parent.window != 'undefined') {
  90                                                 parent.window.location = \"tt-rss.php\";
  91                                         } else {
  92                                                 window.location = \"tt-rss.php\";
  93                                         }
  94                                 </script>
  95                         </body></html>
  96                         ";
  97                 }
  98                 exit;
  99         }
 100
 101         $purge_intervals = array(
 102                 0  => __("Use default"),
 103                 -1 => __("Never purge"),
 104                 5  => __("1 week old"),
 105                 14 => __("2 weeks old"),
 106                 31 => __("1 month old"),
 107                 60 => __("2 months old"),
 108                 90 => __("3 months old"));
 109
 110         $update_intervals = array(
 111                 0   => __("Default interval"),
 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
 126         if (ENABLE_SIMPLEPIE) {
 127                 $update_methods[0] .= ' (SimplePie)';
 128         } else {
 129                 $update_methods[0] .= ' (Magpie)';
 130         }
 131
 132         $access_level_names = array(
 133                 0 => __("User"),
 134                 5 => __("Power User"),
 135                 10 => __("Administrator"));
 136
 137         require_once "modules/pref-prefs.php";
 138         require_once "modules/popup-dialog.php";
 139         require_once "modules/help.php";
 140         require_once "modules/pref-feeds.php";
 141         require_once "modules/pref-filters.php";
 142         require_once "modules/pref-labels.php";
 143         require_once "modules/pref-users.php";
 144         require_once "modules/pref-feed-browser.php";
 145
 146         if (!sanity_check($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                         if (ENABLE_GZIP_OUTPUT) {
 156                                 ob_start("ob_gzhandler");
 157                         }
 158
 159                         $tags = $_GET["tags"];
 160
 161                         $subop = $_GET["subop"];
 162
 163                         switch($subop) {
 164                                 case "catchupAll":
 165                                         db_query($link, "UPDATE ttrss_user_entries SET
 166                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 167                                         ccache_zero_all($link, $_SESSION["uid"]);
 168
 169                                 break;
 170
 171                                 case "collapse":
 172                                         $cat_id = db_escape_string($_GET["cid"]);
 173
 174                                         db_query($link, "UPDATE ttrss_feed_categories SET
 175                                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 176                                                 $_SESSION["uid"]);
 177                                         return;
 178                                 break;
 179
 180                                 case "catsortreset":
 181                                         db_query($link, "UPDATE ttrss_feed_categories
 182                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 183                                         return;
 184                                 break;
 185
 186                                 case "catsort":
 187                                         $corder = db_escape_string($_GET["corder"]);
 188
 189                                         $cats = split(",", $corder);
 190
 191                                         for ($i = 0; $i < count($cats); $i++) {
 192                                                 $cat_id = $cats[$i];
 193
 194                                                 if ($cat_id > 0) {
 195                                                         db_query($link, "UPDATE ttrss_feed_categories
 196                                                                 SET order_id = '$i' WHERE id = '$cat_id' AND
 197                                                                 owner_uid = " . $_SESSION["uid"]);
 198                                                 }
 199                                         }
 200
 201                                         return;
 202                                 break;
 203
 204                         }
 205
 206                         outputFeedList($link, $tags);
 207                 break; // feeds
 208
 209                 case "view":
 210
 211                         $id = db_escape_string($_GET["id"]);
 212                         $feed_id = db_escape_string($_GET["feed"]);
 213                         $cids = split(",", db_escape_string($_GET["cids"]));
 214                         $mode = db_escape_string($_GET["mode"]);
 215                         $omode = db_escape_string($_GET["omode"]);
 216
 217                         $csync = $_GET["csync"];
 218
 219                         print "<reply>";
 220
 221                         // in prefetch mode we only output requested cids, main article
 222                         // just gets marked as read (it already exists in client cache)
 223
 224                         if ($mode == "") {
 225                                 outputArticleXML($link, $id, $feed_id);
 226                         } else if ($mode == "zoom") {
 227                                 outputArticleXML($link, $id, $feed_id, true, true);
 228                         } else {
 229                                 catchupArticleById($link, $id, 0);
 230                                 ccache_update($link, $feed_id, $_SESSION["uid"]);
 231                         }
 232
 233                         if (!$_SESSION["bw_limit"]) {
 234                                 foreach ($cids as $cid) {
 235                                         if ($cid) {
 236                                                 outputArticleXML($link, $cid, $feed_id, false);
 237                                         }
 238                                 }
 239                         }
 240
 241
 242 //                      if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
 243                                 print "<counters>";
 244                                 getAllCounters($link, $omode);
 245                                 print "</counters>";
 246 //                      }
 247
 248                         print "</reply>";
 249                 break; // view
 250
 251                 case "viewfeed":
 252
 253                         $print_exec_time = true;
 254                         $timing_info = getmicrotime();
 255
 256                         print "<reply>";
 257
 258                         if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 259
 260                         $omode = db_escape_string($_GET["omode"]);
 261
 262                         $feed = db_escape_string($_GET["feed"]);
 263                         $subop = db_escape_string($_GET["subop"]);
 264                         $view_mode = db_escape_string($_GET["view_mode"]);
 265                         $limit = db_escape_string($_GET["limit"]);
 266                         $cat_view = db_escape_string($_GET["cat"]);
 267                         $next_unread_feed = db_escape_string($_GET["nuf"]);
 268                         $offset = db_escape_string($_GET["skip"]);
 269                         $vgroup_last_feed = db_escape_string($_GET["vgrlf"]);
 270                         $csync = $_GET["csync"];
 271                         $order_by = db_escape_string($_GET["order_by"]);
 272
 273                         /* Updating a label ccache means recalculating all of the caches
 274                          * so for performance reasons we don't do that here */
 275
 276                         if (time() - $_SESSION["viewfeed:ccache_update_stamp"] > 120) {
 277                                 if ($feed >= 0) {
 278                                         ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 279                                 }
 280                                 $_SESSION["viewfeed:ccache_update_stamp"] = time();
 281                         }
 282
 283                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 284                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 285                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 286
 287                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 288                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 289                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 290                         }
 291
 292                         print "<headlines id=\"$feed\" is_cat=\"$cat_view\"><![CDATA[";
 293
 294                         $override_order = false;
 295
 296                         switch ($order_by) {
 297                                 case "date":
 298                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 299                                                 $override_order = "updated";
 300                                         } else {
 301                                                 $override_order = "updated DESC";
 302                                         }
 303                                         break;
 304
 305                                 case "title":
 306                                         $override_order = "updated DESC";
 307                                         break;
 308
 309                                 case "score":
 310                                         $override_order = "score DESC";
 311                                         break;
 312                         }
 313
 314                         $ret = outputHeadlinesList($link, $feed, $subop,
 315                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 316                                 $vgroup_last_feed, $override_order);
 317
 318                         $topmost_article_ids = $ret[0];
 319                         $headlines_count = $ret[1];
 320                         $returned_feed = $ret[2];
 321                         $disable_cache = $ret[3];
 322                         $vgroup_last_feed = $ret[4];
 323
 324                         print "]]></headlines>";
 325
 326                         print "<headlines-count value=\"$headlines_count\"/>";
 327                         print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 328
 329                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 330                                         $cat_view, true);
 331
 332                         if ($headlines_unread == -1) {
 333                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 334
 335                         }
 336
 337                         print "<headlines-unread value=\"$headlines_unread\"/>";
 338                         printf("<disable-cache value=\"%d\"/>", $disable_cache);
 339
 340                         if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 341
 342                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 343                                 print "<articles>";
 344                                 foreach ($topmost_article_ids as $id) {
 345                                         outputArticleXML($link, $id, $feed, false);
 346                                 }
 347                                 print "</articles>";
 348                         }
 349
 350                         if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 351
 352
 353 //                      if (get_pref($link, "SYNC_COUNTERS") ||
 354 //                                      time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
 355 //                              print "<counters>";
 356 //                              getAllCounters($link, $omode, $feed);
 357 //                              print "</counters>";
 358 //                      }
 359
 360                         if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop ||
 361                                 time() - $_SESSION["viewfeed:counters_stamp"] > 60) {
 362                                 if (!$offset) {
 363                                         print "<counters>";
 364                                         getAllCounters($link, $omode, $feed);
 365                                         print "</counters>";
 366                                         $_SESSION["viewfeed:counters_stamp"] = time();
 367                                 }
 368                         }
 369
 370                         if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 371
 372                         print_runtime_info($link);
 373
 374                         print "</reply>";
 375                 break; // viewfeed
 376
 377                 case "pref-feeds":
 378                         module_pref_feeds($link);
 379                 break; // pref-feeds
 380
 381                 case "pref-filters":
 382                         module_pref_filters($link);
 383                 break; // pref-filters
 384
 385                 case "pref-labels":
 386                         module_pref_labels($link);
 387                 break; // pref-labels
 388
 389                 case "pref-prefs":
 390                         module_pref_prefs($link);
 391                 break; // pref-prefs
 392
 393                 case "pref-users":
 394                         module_pref_users($link);
 395                 break; // prefs-users
 396
 397                 case "help":
 398                         module_help($link);
 399                 break; // help
 400
 401                 case "dlg":
 402                         module_popup_dialog($link);
 403                 break; // dlg
 404
 405                 case "pref-pub-items":
 406                         module_pref_pub_items($link);
 407                 break; // pref-pub-items
 408
 409                 case "globalUpdateFeeds":
 410                         // update feeds of all users, may be used anonymously
 411
 412                         print "<!--";
 413                         // Update all feeds needing a update.
 414                         update_daemon_common($link, 0, true, true);
 415                         print " -->";
 416
 417                         print "<rpc-reply>
 418                                 <message msg=\"All feeds updated\"/>
 419                         </rpc-reply>";
 420                 break; // globalUpdateFeeds
 421
 422                 case "pref-feed-browser":
 423                         module_pref_feed_browser($link);
 424                 break; // pref-feed-browser
 425
 426                 case "publish":
 427                         $key = db_escape_string($_GET["key"]);
 428                         $limit = (int)db_escape_string($_GET["limit"]);
 429
 430                         $result = db_query($link, "SELECT login, owner_uid
 431                                 FROM ttrss_user_prefs, ttrss_users WHERE
 432                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 433                                 value = '$key' AND
 434                                 ttrss_users.id = owner_uid");
 435
 436                         if (db_num_rows($result) == 1) {
 437                                 $owner = db_fetch_result($result, 0, "owner_uid");
 438                                 $login = db_fetch_result($result, 0, "login");
 439
 440                                 generate_syndicated_feed($link, $owner, -2, false, $limit);
 441
 442                         } else {
 443                                 print "<error>User not found</error>";
 444                         }
 445                 break; // publish
 446
 447                 case "rss":
 448                         $feed = db_escape_string($_GET["id"]);
 449                         $user = db_escape_string($_GET["user"]);
 450                         $pass = db_escape_string($_GET["pass"]);
 451                         $is_cat = $_GET["is_cat"] != false;
 452                         $limit = (int)db_escape_string($_GET["limit"]);
 453
 454                         $search = db_escape_string($_GET["q"]);
 455                         $match_on = db_escape_string($_GET["m"]);
 456                         $search_mode = db_escape_string($_GET["smode"]);
 457
 458                         if (!$_SESSION["uid"] && $user && $pass) {
 459                                 authenticate_user($link, $user, $pass);
 460                         }
 461
 462                         if ($_SESSION["uid"] ||
 463                                 http_authenticate_user($link)) {
 464
 465                                         generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 466                                                 $search, $search_mode, $match_on);
 467                         }
 468                 break; // rss
 469
 470                 case "labelFromSearch":
 471                         $search = db_escape_string($_GET["search"]);
 472                         $search_mode = db_escape_string($_GET["smode"]);
 473                         $match_on = db_escape_string($_GET["match"]);
 474                         $is_cat = db_escape_string($_GET["is_cat"]);
 475                         $title = db_escape_string($_GET["title"]);
 476                         $feed = sprintf("%d", $_GET["feed"]);
 477
 478                         $label_qparts = array();
 479
 480                         $search_expr = getSearchSql($search, $match_on);
 481
 482                         if ($is_cat) {
 483                                 if ($feed != 0) {
 484                                         $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
 485                                 } else {
 486                                         $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 487                                 }
 488                         } else {
 489                                 if ($search_mode == "all_feeds") {
 490                                         // NOOP
 491                                 } else if ($search_mode == "this_cat") {
 492
 493                                         $tmp_result = db_query($link, "SELECT cat_id
 494                                                 FROM ttrss_feeds WHERE id = '$feed'");
 495
 496                                         $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
 497
 498                                         if ($cat_id > 0) {
 499                                                 $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
 500                                         } else {
 501                                                 $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 502                                         }
 503                                 } else {
 504                                         $search_expr .= " AND ttrss_feeds.id = $feed ";
 505                                 }
 506
 507                         }
 508
 509                         $search_expr = db_escape_string($search_expr);
 510
 511                         print $search_expr;
 512
 513                         if ($title) {
 514                                 $result = db_query($link,
 515                                         "INSERT INTO ttrss_labels (sql_exp,description,owner_uid)
 516                                         VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
 517                         }
 518                 break; // labelFromSearch
 519
 520                 case "getUnread":
 521                         $login = db_escape_string($_GET["login"]);
 522
 523                         header("Content-Type: text/plain; charset=utf-8");
 524
 525                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 526
 527                         if (db_num_rows($result) == 1) {
 528                                 $uid = db_fetch_result($result, 0, "id");
 529                                 print getGlobalUnread($link, $uid);
 530                         } else {
 531                                 print "-1;User not found";
 532                         }
 533
 534                         $print_exec_time = false;
 535                 break; // getUnread
 536
 537                 case "digestTest":
 538                         header("Content-Type: text/plain");
 539                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 540                         $print_exec_time = false;
 541                 break; // digestTest
 542
 543                 case "digestSend":
 544                         header("Content-Type: text/plain");
 545                         send_headlines_digests($link);
 546                         $print_exec_time = false;
 547                 break; // digestSend
 548
 549         } // Select action according to $op value.
 550
 551         // We close the connection to database.
 552         db_close($link);
 553 ?>
 554
 555 <?php if ($print_exec_time) { ?>
 556 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 557 <?php } ?>