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                         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_intervals_nodefault = array(
 122                 -1  => __("Disable updates"),
 123                 15  => __("Each 15 minutes"),
 124                 30  => __("Each 30 minutes"),
 125                 60  => __("Hourly"),
 126                 240 => __("Each 4 hours"),
 127                 720 => __("Each 12 hours"),
 128                 1440 => __("Daily"),
 129                 10080 => __("Weekly"));
 130
 131         $update_methods = array(
 132                 0   => __("Default"),
 133                 1   => __("Magpie"),
 134                 2   => __("SimplePie"),
 135                 3   => __("Twitter OAuth"));
 136
 137         if (DEFAULT_UPDATE_METHOD == "1") {
 138                 $update_methods[0] .= ' (SimplePie)';
 139         } else {
 140                 $update_methods[0] .= ' (Magpie)';
 141         }
 142
 143         $access_level_names = array(
 144                 0 => __("User"),
 145                 5 => __("Power User"),
 146                 10 => __("Administrator"));
 147
 148         require_once "modules/pref-prefs.php";
 149         require_once "modules/popup-dialog.php";
 150         require_once "modules/help.php";
 151         require_once "modules/pref-feeds.php";
 152         require_once "modules/pref-filters.php";
 153         require_once "modules/pref-labels.php";
 154         require_once "modules/pref-users.php";
 155
 156         if (!sanity_check($link)) { return; }
 157
 158         switch($op) { // Select action according to $op value.
 159                 case "rpc":
 160                         // Handle remote procedure calls.
 161                         handle_rpc_request($link);
 162                 break; // rpc
 163
 164                 case "feeds":
 165                         $subop = $_REQUEST["subop"];
 166                         $root = (bool)$_REQUEST["root"];
 167
 168                         switch($subop) {
 169                                 case "catchupAll":
 170                                         db_query($link, "UPDATE ttrss_user_entries SET
 171                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 172                                         ccache_zero_all($link, $_SESSION["uid"]);
 173
 174                                 break;
 175
 176                                 case "collapse":
 177                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 178                                         $mode = (int) db_escape_string($_REQUEST['mode']);
 179                                         toggle_collapse_cat($link, $cat_id, $mode);
 180                                         return;
 181                                 break;
 182                         }
 183
 184                         if (!$root) {
 185                                 print json_encode(outputFeedList($link));
 186                         } else {
 187
 188                                 $feeds = outputFeedList($link, false);
 189
 190                                 $root = array();
 191                                 $root['id'] = 'root';
 192                                 $root['name'] = __('Feeds');
 193                                 $root['items'] = $feeds['items'];
 194
 195                                 $fl = array();
 196                                 $fl['identifier'] = 'id';
 197                                 $fl['label'] = 'name';
 198                                 $fl['items'] = array($root);
 199
 200                                 print json_encode($fl);
 201                         }
 202
 203                 break; // feeds
 204
 205                 case "la":
 206                         $id = db_escape_string($_REQUEST['id']);
 207
 208                         $result = db_query($link, "SELECT link FROM ttrss_entries, ttrss_user_entries
 209                                 WHERE id = '$id' AND id = ref_id AND owner_uid = '".$_SESSION['uid']."'");
 210
 211                         if (db_num_rows($result) == 1) {
 212                                 $article_url = db_fetch_result($result, 0, 'link');
 213                                 $article_url = str_replace("\n", "", $article_url);
 214
 215                                 header("Location: $article_url");
 216                                 return;
 217
 218                         } else {
 219                                 print_error(__("Article not found."));
 220                         }
 221                 break;
 222
 223                 case "view":
 224
 225                         $id = db_escape_string($_REQUEST["id"]);
 226                         $cids = split(",", db_escape_string($_REQUEST["cids"]));
 227                         $mode = db_escape_string($_REQUEST["mode"]);
 228                         $omode = db_escape_string($_REQUEST["omode"]);
 229
 230                         if ($mode != "zoom") print "<reply>";
 231
 232                         // in prefetch mode we only output requested cids, main article
 233                         // just gets marked as read (it already exists in client cache)
 234
 235                         if ($mode == "") {
 236                                 outputArticleXML($link, $id, false);
 237                         } else if ($mode == "zoom") {
 238                                 outputArticleXML($link, $id, false, true, true);
 239                         } else {
 240                                 catchupArticleById($link, $id, 0);
 241                         }
 242
 243                         if (!$_SESSION["bw_limit"]) {
 244                                 foreach ($cids as $cid) {
 245                                         if ($cid) {
 246                                                 outputArticleXML($link, $cid, false, false);
 247                                         }
 248                                 }
 249                         }
 250
 251                         /* if ($mode == "prefetch") {
 252                                 print "<counters><![CDATA[";
 253                                 print json_encode(getAllCounters($link, $omode));
 254                                 print "]]></counters>";
 255                         } */
 256
 257                         if ($mode != "zoom") print "</reply>";
 258                 break; // view
 259
 260                 case "viewfeed":
 261
 262                         $print_exec_time = true;
 263                         $timing_info = getmicrotime();
 264
 265                         print "<reply>";
 266
 267                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 268
 269                         $omode = db_escape_string($_REQUEST["omode"]);
 270
 271                         $feed = db_escape_string($_REQUEST["feed"]);
 272                         $subop = db_escape_string($_REQUEST["subop"]);
 273                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 274                         $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
 275                         @$cat_view = db_escape_string($_REQUEST["cat"]);
 276                         @$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 277                         @$offset = db_escape_string($_REQUEST["skip"]);
 278                         @$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 279                         $order_by = db_escape_string($_REQUEST["order_by"]);
 280
 281                         /* Feed -5 is a special case: it is used to display auxiliary information
 282                          * when there's nothing to load - e.g. no stuff in fresh feed */
 283
 284                         if ($feed == -5) {
 285                                 generate_dashboard_feed($link);
 286                                 print "</reply>";
 287                                 return;
 288                         }
 289
 290                         /* Updating a label ccache means recalculating all of the caches
 291                          * so for performance reasons we don't do that here */
 292
 293                         if ($feed >= 0) {
 294                                 ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 295                         }
 296
 297                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 298                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 299                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 300
 301                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 302                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 303                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 304                         }
 305
 306                         if (!$next_unread_feed) {
 307                                 print "<headlines id=\"$feed\" is_cat=\"$cat_view\">";
 308                         } else {
 309                                 print "<headlines id=\"$next_unread_feed\" is_cat=\"$cat_view\">";
 310                         }
 311
 312                         $override_order = false;
 313
 314                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
 315                                 $date_sort_field = "updated";
 316                         } else {
 317                                 $date_sort_field = "date_entered";
 318                         }
 319
 320                         switch ($order_by) {
 321                                 case "date":
 322                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 323                                                 $override_order = "$date_sort_field";
 324                                         } else {
 325                                                 $override_order = "$date_sort_field DESC";
 326                                         }
 327                                         break;
 328
 329                                 case "title":
 330                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 331                                                 $override_order = "title DESC, $date_sort_field";
 332                                         } else {
 333                                                 $override_order = "title, $date_sort_field DESC";
 334                                         }
 335                                         break;
 336
 337                                 case "score":
 338                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 339                                                 $override_order = "score, $date_sort_field";
 340                                         } else {
 341                                                 $override_order = "score DESC, $date_sort_field DESC";
 342                                         }
 343                                         break;
 344                         }
 345
 346                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);
 347
 348                         $ret = outputHeadlinesList($link, $feed, $subop,
 349                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 350                                 $vgroup_last_feed, $override_order);
 351
 352                         $topmost_article_ids = $ret[0];
 353                         $headlines_count = $ret[1];
 354                         $returned_feed = $ret[2];
 355                         $disable_cache = $ret[3];
 356                         $vgroup_last_feed = $ret[4];
 357
 358                         print "</headlines>";
 359
 360                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);
 361
 362                         //print "<headlines-count value=\"$headlines_count\"/>";
 363                         //print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 364
 365                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 366                                         $cat_view, true);
 367
 368                         if ($headlines_unread == -1) {
 369                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 370
 371                         }
 372
 373                         //print "<headlines-unread value=\"$headlines_unread\"/>";
 374                         //printf("<disable-cache value=\"%d\"/>", $disable_cache);
 375
 376                         print "<headlines-info><![CDATA[";
 377
 378                         $info = array("count" => (int) $headlines_count,
 379                                 "vgroup_last_feed" => $vgroup_last_feed,
 380                                 "unread" => (int) $headlines_unread,
 381                                 "disable_cache" => (bool) $disable_cache);
 382
 383                         print json_encode($info);
 384
 385                         print "]]></headlines-info>";
 386
 387                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 388
 389                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 390                                 print "<articles>";
 391                                 foreach ($topmost_article_ids as $id) {
 392                                         outputArticleXML($link, $id, $feed, false);
 393                                 }
 394                                 print "</articles>";
 395                         }
 396
 397                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 398
 399                         //if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop) {
 400                         if ($subop) {
 401                                 print "<counters><![CDATA[";
 402                                 print json_encode(getAllCounters($link, $omode, $feed));
 403                                 print "]]></counters>";
 404                         }
 405
 406                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 407
 408                         print_runtime_info($link);
 409
 410                         print "</reply>";
 411                 break; // viewfeed
 412
 413                 case "pref-feeds":
 414                         module_pref_feeds($link);
 415                 break; // pref-feeds
 416
 417                 case "pref-filters":
 418                         module_pref_filters($link);
 419                 break; // pref-filters
 420
 421                 case "pref-labels":
 422                         module_pref_labels($link);
 423                 break; // pref-labels
 424
 425                 case "pref-prefs":
 426                         module_pref_prefs($link);
 427                 break; // pref-prefs
 428
 429                 case "pref-users":
 430                         module_pref_users($link);
 431                 break; // prefs-users
 432
 433                 case "help":
 434                         module_help($link);
 435                 break; // help
 436
 437                 case "dlg":
 438                         module_popup_dialog($link);
 439                 break; // dlg
 440
 441                 case "pref-pub-items":
 442                         module_pref_pub_items($link);
 443                 break; // pref-pub-items
 444
 445                 case "globalUpdateFeeds":
 446                         // update feeds of all users, may be used anonymously
 447
 448                         print "<!--";
 449                         // Update all feeds needing a update.
 450                         update_daemon_common($link, 0, true, true);
 451                         print " -->";
 452
 453                         print "<rpc-reply>
 454                                 <message msg=\"All feeds updated\"/>
 455                         </rpc-reply>";
 456                 break; // globalUpdateFeeds
 457
 458                 case "pref-feed-browser":
 459                         module_pref_feed_browser($link);
 460                 break; // pref-feed-browser
 461
 462                 case "rss":
 463                         $feed = db_escape_string($_REQUEST["id"]);
 464                         $key = db_escape_string($_REQUEST["key"]);
 465                         $is_cat = $_REQUEST["is_cat"] != false;
 466                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 467
 468                         $search = db_escape_string($_REQUEST["q"]);
 469                         $match_on = db_escape_string($_REQUEST["m"]);
 470                         $search_mode = db_escape_string($_REQUEST["smode"]);
 471                         $view_mode = db_escape_string($_REQUEST["view-mode"]);
 472
 473                         if (SINGLE_USER_MODE) {
 474                                 authenticate_user($link, "admin", null);
 475                         }
 476
 477                         if ($key) {
 478                                 $result = db_query($link, "SELECT owner_uid FROM
 479                                         ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
 480
 481                                 if (db_num_rows($result) == 1)
 482                                         $_SESSION["uid"] = db_fetch_result($result, 0, "owner_uid");
 483
 484                         }
 485
 486                         if ($_SESSION["uid"]) {
 487                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 488                                         $search, $search_mode, $match_on, $view_mode);
 489                         }
 490                 break; // rss
 491
 492                 case "getUnread":
 493                         $login = db_escape_string($_REQUEST["login"]);
 494                         $fresh = $_REQUEST["fresh"] == "1";
 495
 496                         header("Content-Type: text/plain; charset=utf-8");
 497
 498                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 499
 500                         if (db_num_rows($result) == 1) {
 501                                 $uid = db_fetch_result($result, 0, "id");
 502
 503                                 print getGlobalUnread($link, $uid);
 504
 505                                 if ($fresh) {
 506                                         print ";";
 507                                         print getFeedArticles($link, -3, false, true, $uid);
 508                                 }
 509
 510                         } else {
 511                                 print "-1;User not found";
 512                         }
 513
 514                         $print_exec_time = false;
 515                 break; // getUnread
 516
 517                 case "digestTest":
 518                         header("Content-Type: text/plain");
 519                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 520                         $print_exec_time = false;
 521                 break; // digestTest
 522
 523                 case "digestSend":
 524                         header("Content-Type: text/plain");
 525                         send_headlines_digests($link);
 526                         $print_exec_time = false;
 527                 break; // digestSend
 528
 529                 case "loading":
 530                         print __("Loading, please wait...") . " " .
 531                                 "<img src='images/indicator_tiny.gif'>";
 532
 533                 case "getProfiles":
 534                         $login = db_escape_string($_REQUEST["login"]);
 535                         $password = db_escape_string($_REQUEST["password"]);
 536
 537                         if (authenticate_user($link, $login, $password)) {
 538                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
 539                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 540
 541                                 print "<select style='width: 100%' name='profile'>";
 542
 543                                 print "<option value='0'>" . __("Default profile") . "</option>";
 544
 545                                 while ($line = db_fetch_assoc($result)) {
 546                                         $id = $line["id"];
 547                                         $title = $line["title"];
 548
 549                                         print "<option value='$id'>$title</option>";
 550                                 }
 551
 552                                 print "</select>";
 553
 554                                 $_SESSION = array();
 555                         }
 556                 break;
 557
 558         } // Select action according to $op value.
 559
 560
 561         // We close the connection to database.
 562         db_close($link);
 563 ?>
 564
 565 <?php if ($print_exec_time) { ?>
 566 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 567 <?php } ?>