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                 $_REQUEST = array_map('stripslashes', $_REQUEST);
   8                 $_POST = array_map('stripslashes', $_POST);
   9                 $_REQUEST = array_map('stripslashes', $_REQUEST);
  10                 $_COOKIE = array_map('stripslashes', $_COOKIE);
  11         }
  12
  13         require_once "sessions.php";
  14         require_once "modules/backend-rpc.php";
  15
  16 /*      if ($_REQUEST["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 (SINGLE_USER_MODE) {
  80                 authenticate_user($link, "admin", null);
  81         }
  82
  83         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  84                         && $op != "rss" && $op != "getUnread" && $op != "publish") {
  85
  86                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  87                         print_error_xml(6); die;
  88                 } else {
  89                         print "
  90                         <html><body>
  91                                 <p>Error: Not logged in.</p>
  92                                 <script type=\"text/javascript\">
  93                                         if (parent.window != 'undefined') {
  94                                                 parent.window.location = \"tt-rss.php\";
  95                                         } else {
  96                                                 window.location = \"tt-rss.php\";
  97                                         }
  98                                 </script>
  99                         </body></html>
 100                         ";
 101                 }
 102                 exit;
 103         }
 104
 105         $purge_intervals = array(
 106                 0  => __("Use default"),
 107                 -1 => __("Never purge"),
 108                 5  => __("1 week old"),
 109                 14 => __("2 weeks old"),
 110                 31 => __("1 month old"),
 111                 60 => __("2 months old"),
 112                 90 => __("3 months old"));
 113
 114         $update_intervals = array(
 115                 0   => __("Default interval"),
 116                 -1  => __("Disable updates"),
 117                 15  => __("Each 15 minutes"),
 118                 30  => __("Each 30 minutes"),
 119                 60  => __("Hourly"),
 120                 240 => __("Each 4 hours"),
 121                 720 => __("Each 12 hours"),
 122                 1440 => __("Daily"),
 123                 10080 => __("Weekly"));
 124
 125         $update_methods = array(
 126                 0   => __("Default"),
 127                 1   => __("Magpie"),
 128                 2   => __("SimplePie"));
 129
 130         if (ENABLE_SIMPLEPIE) {
 131                 $update_methods[0] .= ' (SimplePie)';
 132         } else {
 133                 $update_methods[0] .= ' (Magpie)';
 134         }
 135
 136         $access_level_names = array(
 137                 0 => __("User"),
 138                 5 => __("Power User"),
 139                 10 => __("Administrator"));
 140
 141         require_once "modules/pref-prefs.php";
 142         require_once "modules/popup-dialog.php";
 143         require_once "modules/help.php";
 144         require_once "modules/pref-feeds.php";
 145         require_once "modules/pref-filters.php";
 146         require_once "modules/pref-labels.php";
 147         require_once "modules/pref-users.php";
 148
 149         if (!sanity_check($link)) { return; }
 150
 151         switch($op) { // Select action according to $op value.
 152                 case "rpc":
 153                         // Handle remote procedure calls.
 154                         handle_rpc_request($link);
 155                 break; // rpc
 156
 157                 case "feeds":
 158                         if (ENABLE_GZIP_OUTPUT) {
 159                                 ob_start("ob_gzhandler");
 160                         }
 161
 162                         $tags = $_REQUEST["tags"];
 163
 164                         $subop = $_REQUEST["subop"];
 165
 166                         switch($subop) {
 167                                 case "catchupAll":
 168                                         db_query($link, "UPDATE ttrss_user_entries SET
 169                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 170                                         ccache_zero_all($link, $_SESSION["uid"]);
 171
 172                                 break;
 173
 174                                 case "collapse":
 175                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 176                                         toggle_collapse_cat($link, $cat_id);
 177                                         return;
 178                                 break;
 179
 180                                 case "catsortreset":
 181                                         db_query($link, "UPDATE ttrss_feed_categories
 182                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 183                                         return;
 184                                 break;
 185
 186                                 case "catsort":
 187                                         $corder = db_escape_string($_REQUEST["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                         $_SESSION["viewfeed:counters_stamp"] = time();
 207
 208                         outputFeedList($link, $tags);
 209                 break; // feeds
 210
 211                 case "view":
 212
 213                         $id = db_escape_string($_REQUEST["id"]);
 214                         $cids = split(",", db_escape_string($_REQUEST["cids"]));
 215                         $mode = db_escape_string($_REQUEST["mode"]);
 216                         $omode = db_escape_string($_REQUEST["omode"]);
 217
 218                         $csync = $_REQUEST["csync"];
 219
 220                         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                         $feed_id = false;
 226
 227                         if ($mode == "") {
 228                                 outputArticleXML($link, $id, false);
 229                         } else if ($mode == "zoom") {
 230                                 outputArticleXML($link, $id, false, true, true);
 231                         } else {
 232                                 catchupArticleById($link, $id, 0);
 233                         }
 234
 235                         if (!$_SESSION["bw_limit"]) {
 236                                 foreach ($cids as $cid) {
 237                                         if ($cid) {
 238                                                 outputArticleXML($link, $cid, false, false);
 239                                         }
 240                                 }
 241                         }
 242
 243 //                      if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
 244
 245                         if (time() - $_SESSION["view:counters_stamp"] > 5 && $mode == "prefetch") {
 246                                 print "<counters>";
 247                                 getAllCounters($link, $omode);
 248                                 print "</counters>";
 249                                 $_SESSION["view:counters_stamp"] = time();
 250                         }
 251
 252                         print "</reply>";
 253                 break; // view
 254
 255                 case "viewfeed":
 256
 257                         $print_exec_time = true;
 258                         $timing_info = getmicrotime();
 259
 260                         print "<reply>";
 261
 262                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 263
 264                         $omode = db_escape_string($_REQUEST["omode"]);
 265
 266                         $feed = db_escape_string($_REQUEST["feed"]);
 267                         $subop = db_escape_string($_REQUEST["subop"]);
 268                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 269                         $limit = db_escape_string($_REQUEST["limit"]);
 270                         $cat_view = db_escape_string($_REQUEST["cat"]);
 271                         $next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 272                         $offset = db_escape_string($_REQUEST["skip"]);
 273                         $vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 274                         $csync = $_REQUEST["csync"];
 275                         $order_by = db_escape_string($_REQUEST["order_by"]);
 276
 277                         /* Updating a label ccache means recalculating all of the caches
 278                          * so for performance reasons we don't do that here */
 279
 280 //                      if (time() - $_SESSION["viewfeed:ccache_update_stamp"] > 120) {
 281                                 if ($feed >= 0) {
 282                                         ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 283                                 }
 284                                 $_SESSION["viewfeed:ccache_update_stamp"] = time();
 285 //                      }
 286
 287                         set_pref($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=\"$cat_view\"><![CDATA[";
 298                         } else {
 299                                 print "<headlines id=\"$next_unread_feed\" is_cat=\"$cat_view\"><![CDATA[";
 300                         }
 301
 302                         $override_order = false;
 303
 304                         switch ($order_by) {
 305                                 case "date":
 306                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 307                                                 $override_order = "updated";
 308                                         } else {
 309                                                 $override_order = "updated DESC";
 310                                         }
 311                                         break;
 312
 313                                 case "title":
 314                                         $override_order = "updated DESC";
 315                                         break;
 316
 317                                 case "score":
 318                                         $override_order = "score DESC";
 319                                         break;
 320                         }
 321
 322                         $ret = outputHeadlinesList($link, $feed, $subop,
 323                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 324                                 $vgroup_last_feed, $override_order);
 325
 326                         $topmost_article_ids = $ret[0];
 327                         $headlines_count = $ret[1];
 328                         $returned_feed = $ret[2];
 329                         $disable_cache = $ret[3];
 330                         $vgroup_last_feed = $ret[4];
 331
 332                         print "]]></headlines>";
 333
 334                         print "<headlines-count value=\"$headlines_count\"/>";
 335                         print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 336
 337                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 338                                         $cat_view, true);
 339
 340                         if ($headlines_unread == -1) {
 341                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 342
 343                         }
 344
 345                         print "<headlines-unread value=\"$headlines_unread\"/>";
 346                         printf("<disable-cache value=\"%d\"/>", $disable_cache);
 347
 348                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 349
 350                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 351                                 print "<articles>";
 352                                 foreach ($topmost_article_ids as $id) {
 353                                         outputArticleXML($link, $id, $feed, false);
 354                                 }
 355                                 print "</articles>";
 356                         }
 357
 358                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 359
 360
 361 //                      if (get_pref($link, "SYNC_COUNTERS") ||
 362 //                                      time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
 363 //                              print "<counters>";
 364 //                              getAllCounters($link, $omode, $feed);
 365 //                              print "</counters>";
 366 //                      }
 367
 368                         if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop ||
 369                                 time() - $_SESSION["viewfeed:counters_stamp"] > 5) {
 370                                 if (!$offset) {
 371                                         print "<counters>";
 372                                         getAllCounters($link, $omode, $feed);
 373                                         print "</counters>";
 374                                         $_SESSION["viewfeed:counters_stamp"] = time();
 375                                 }
 376                         }
 377
 378                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 379
 380                         print_runtime_info($link);
 381
 382                         print "</reply>";
 383                 break; // viewfeed
 384
 385                 case "pref-feeds":
 386                         module_pref_feeds($link);
 387                 break; // pref-feeds
 388
 389                 case "pref-filters":
 390                         module_pref_filters($link);
 391                 break; // pref-filters
 392
 393                 case "pref-labels":
 394                         module_pref_labels($link);
 395                 break; // pref-labels
 396
 397                 case "pref-prefs":
 398                         module_pref_prefs($link);
 399                 break; // pref-prefs
 400
 401                 case "pref-users":
 402                         module_pref_users($link);
 403                 break; // prefs-users
 404
 405                 case "help":
 406                         module_help($link);
 407                 break; // help
 408
 409                 case "dlg":
 410                         module_popup_dialog($link);
 411                 break; // dlg
 412
 413                 case "pref-pub-items":
 414                         module_pref_pub_items($link);
 415                 break; // pref-pub-items
 416
 417                 case "globalUpdateFeeds":
 418                         // update feeds of all users, may be used anonymously
 419
 420                         print "<!--";
 421                         // Update all feeds needing a update.
 422                         update_daemon_common($link, 0, true, true);
 423                         print " -->";
 424
 425                         print "<rpc-reply>
 426                                 <message msg=\"All feeds updated\"/>
 427                         </rpc-reply>";
 428                 break; // globalUpdateFeeds
 429
 430                 case "pref-feed-browser":
 431                         module_pref_feed_browser($link);
 432                 break; // pref-feed-browser
 433
 434                 case "publish":
 435                         $key = db_escape_string($_REQUEST["key"]);
 436                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 437
 438                         $result = db_query($link, "SELECT login, owner_uid
 439                                 FROM ttrss_user_prefs, ttrss_users WHERE
 440                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 441                                 value = '$key' AND
 442                                 ttrss_users.id = owner_uid");
 443
 444                         if (db_num_rows($result) == 1) {
 445                                 $owner = db_fetch_result($result, 0, "owner_uid");
 446                                 $login = db_fetch_result($result, 0, "login");
 447
 448                                 generate_syndicated_feed($link, $owner, -2, false, $limit);
 449
 450                         } else {
 451                                 print "<error>User not found</error>";
 452                         }
 453                 break; // publish
 454
 455                 case "rss":
 456                         $feed = db_escape_string($_REQUEST["id"]);
 457                         $user = db_escape_string($_REQUEST["user"]);
 458                         $pass = db_escape_string($_REQUEST["pass"]);
 459                         $is_cat = $_REQUEST["is_cat"] != false;
 460                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 461
 462                         $search = db_escape_string($_REQUEST["q"]);
 463                         $match_on = db_escape_string($_REQUEST["m"]);
 464                         $search_mode = db_escape_string($_REQUEST["smode"]);
 465
 466                         if (SINGLE_USER_MODE) {
 467                                 authenticate_user($link, "admin", null);
 468                         }
 469
 470                         if (!$_SESSION["uid"] && $user && $pass) {
 471                                 authenticate_user($link, $user, $pass);
 472                         }
 473
 474                         if ($_SESSION["uid"] ||
 475                                 http_authenticate_user($link)) {
 476
 477                                         generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 478                                                 $search, $search_mode, $match_on);
 479                         }
 480                 break; // rss
 481
 482                 case "getUnread":
 483                         $login = db_escape_string($_REQUEST["login"]);
 484
 485                         header("Content-Type: text/plain; charset=utf-8");
 486
 487                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 488
 489                         if (db_num_rows($result) == 1) {
 490                                 $uid = db_fetch_result($result, 0, "id");
 491                                 print getGlobalUnread($link, $uid);
 492                         } else {
 493                                 print "-1;User not found";
 494                         }
 495
 496                         $print_exec_time = false;
 497                 break; // getUnread
 498
 499                 case "digestTest":
 500                         header("Content-Type: text/plain");
 501                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 502                         $print_exec_time = false;
 503                 break; // digestTest
 504
 505                 case "digestSend":
 506                         header("Content-Type: text/plain");
 507                         send_headlines_digests($link);
 508                         $print_exec_time = false;
 509                 break; // digestSend
 510
 511         } // Select action according to $op value.
 512
 513         // We close the connection to database.
 514         db_close($link);
 515 ?>
 516
 517 <?php if ($print_exec_time) { ?>
 518 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 519 <?php } ?>