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                 function stripslashes_deep($value) {
   8                         $value = is_array($value) ?
   9                                 array_map('stripslashes_deep', $value) : stripslashes($value);
  10                                 return $value;
  11                 }
  12
  13                 $_POST = array_map('stripslashes_deep', $_POST);
  14                 $_GET = array_map('stripslashes_deep', $_GET);
  15                 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
  16                 $_REQUEST = array_map('stripslashes_deep', $_REQUEST);
  17         }
  18
  19         require_once "sessions.php";
  20         require_once "modules/backend-rpc.php";
  21
  22 /*      if ($_REQUEST["debug"]) {
  23                 define('DEFAULT_ERROR_LEVEL', E_ALL);
  24         } else {
  25                 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
  26         }
  27
  28         error_reporting(DEFAULT_ERROR_LEVEL); */
  29
  30         require_once "sanity_check.php";
  31         require_once "config.php";
  32
  33         require_once "db.php";
  34         require_once "db-prefs.php";
  35         require_once "functions.php";
  36
  37         no_cache_incantation();
  38
  39         if (ENABLE_TRANSLATIONS == true) {
  40                 startup_gettext();
  41         }
  42
  43         $script_started = getmicrotime();
  44
  45         $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  46
  47         if (!$link) {
  48                 if (DB_TYPE == "mysql") {
  49                         print mysql_error();
  50                 }
  51                 // PG seems to display its own errors just fine by default.
  52                 return;
  53         }
  54
  55         init_connection($link);
  56
  57         $op = $_REQUEST["op"];
  58         $subop = $_REQUEST["subop"];
  59         $mode = $_REQUEST["mode"];
  60
  61         $print_exec_time = false;
  62
  63         if ((!$op || $op == "rpc" || $op == "rss" ||
  64                         ($op == "view" && $mode != "zoom") ||
  65                         $op == "digestSend" || $op == "viewfeed" || $op == "publish" ||
  66                         $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
  67                                 header("Content-Type: application/xml; charset=utf-8");
  68
  69                                 if (ENABLE_GZIP_OUTPUT) {
  70                                         ob_start("ob_gzhandler");
  71                                 }
  72
  73                 } else {
  74                 if (!$_REQUEST["noxml"]) {
  75                         header("Content-Type: text/html; charset=utf-8");
  76                 } else {
  77                         header("Content-Type: text/plain; charset=utf-8");
  78                 }
  79         }
  80
  81         if (!$op) {
  82                 header("Content-Type: application/xml");
  83                 print_error_xml(7); exit;
  84         }
  85
  86         if (SINGLE_USER_MODE) {
  87                 authenticate_user($link, "admin", null);
  88         }
  89
  90         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  91                 && $op != "rss" && $op != "getUnread" && $op != "publish" && $op != "getProfiles") {
  92
  93                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  94                         print_error_xml(6); die;
  95                 } else {
  96                         print "
  97                         <html><body>
  98                                 <p>Error: Not logged in.</p>
  99                                 <script type=\"text/javascript\">
 100                                         if (parent.window != 'undefined') {
 101                                                 parent.window.location = \"tt-rss.php\";
 102                                         } else {
 103                                                 window.location = \"tt-rss.php\";
 104                                         }
 105                                 </script>
 106                         </body></html>
 107                         ";
 108                 }
 109                 exit;
 110         }
 111
 112         $purge_intervals = array(
 113                 0  => __("Use default"),
 114                 -1 => __("Never purge"),
 115                 5  => __("1 week old"),
 116                 14 => __("2 weeks old"),
 117                 31 => __("1 month old"),
 118                 60 => __("2 months old"),
 119                 90 => __("3 months old"));
 120
 121         $update_intervals = array(
 122                 0   => __("Default interval"),
 123                 -1  => __("Disable updates"),
 124                 15  => __("Each 15 minutes"),
 125                 30  => __("Each 30 minutes"),
 126                 60  => __("Hourly"),
 127                 240 => __("Each 4 hours"),
 128                 720 => __("Each 12 hours"),
 129                 1440 => __("Daily"),
 130                 10080 => __("Weekly"));
 131
 132         $update_intervals_nodefault = array(
 133                 -1  => __("Disable updates"),
 134                 15  => __("Each 15 minutes"),
 135                 30  => __("Each 30 minutes"),
 136                 60  => __("Hourly"),
 137                 240 => __("Each 4 hours"),
 138                 720 => __("Each 12 hours"),
 139                 1440 => __("Daily"),
 140                 10080 => __("Weekly"));
 141
 142         $update_methods = array(
 143                 0   => __("Default"),
 144                 1   => __("Magpie"),
 145                 2   => __("SimplePie"));
 146
 147         if (DEFAULT_UPDATE_METHOD == "1") {
 148                 $update_methods[0] .= ' (SimplePie)';
 149         } else {
 150                 $update_methods[0] .= ' (Magpie)';
 151         }
 152
 153         $access_level_names = array(
 154                 0 => __("User"),
 155                 5 => __("Power User"),
 156                 10 => __("Administrator"));
 157
 158         require_once "modules/pref-prefs.php";
 159         require_once "modules/popup-dialog.php";
 160         require_once "modules/help.php";
 161         require_once "modules/pref-feeds.php";
 162         require_once "modules/pref-filters.php";
 163         require_once "modules/pref-labels.php";
 164         require_once "modules/pref-users.php";
 165
 166         if (!sanity_check($link)) { return; }
 167
 168         switch($op) { // Select action according to $op value.
 169                 case "rpc":
 170                         // Handle remote procedure calls.
 171                         handle_rpc_request($link);
 172                 break; // rpc
 173
 174                 case "feeds":
 175                         if (ENABLE_GZIP_OUTPUT) {
 176                                 ob_start("ob_gzhandler");
 177                         }
 178
 179                         $tags = $_REQUEST["tags"];
 180
 181                         $subop = $_REQUEST["subop"];
 182
 183                         switch($subop) {
 184                                 case "catchupAll":
 185                                         db_query($link, "UPDATE ttrss_user_entries SET
 186                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 187                                         ccache_zero_all($link, $_SESSION["uid"]);
 188
 189                                 break;
 190
 191                                 case "collapse":
 192                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 193                                         toggle_collapse_cat($link, $cat_id);
 194                                         return;
 195                                 break;
 196
 197                                 case "catsortreset":
 198                                         db_query($link, "UPDATE ttrss_feed_categories
 199                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 200                                         return;
 201                                 break;
 202
 203                                 case "catsort":
 204                                         $corder = db_escape_string($_REQUEST["corder"]);
 205
 206                                         $cats = split(",", $corder);
 207
 208                                         for ($i = 0; $i < count($cats); $i++) {
 209                                                 $cat_id = $cats[$i];
 210
 211                                                 if ($cat_id > 0) {
 212                                                         db_query($link, "UPDATE ttrss_feed_categories
 213                                                                 SET order_id = '$i' WHERE id = '$cat_id' AND
 214                                                                 owner_uid = " . $_SESSION["uid"]);
 215                                                 }
 216                                         }
 217
 218                                         return;
 219                                 break;
 220
 221                         }
 222
 223                         $_SESSION["viewfeed:counters_stamp"] = time();
 224
 225                         outputFeedList($link, $tags);
 226                 break; // feeds
 227
 228                 case "view":
 229
 230                         $id = db_escape_string($_REQUEST["id"]);
 231                         $cids = split(",", db_escape_string($_REQUEST["cids"]));
 232                         $mode = db_escape_string($_REQUEST["mode"]);
 233                         $omode = db_escape_string($_REQUEST["omode"]);
 234
 235                         $csync = $_REQUEST["csync"];
 236
 237                         print "<reply>";
 238
 239                         // in prefetch mode we only output requested cids, main article
 240                         // just gets marked as read (it already exists in client cache)
 241
 242                         if ($mode == "") {
 243                                 outputArticleXML($link, $id, false);
 244                         } else if ($mode == "zoom") {
 245                                 outputArticleXML($link, $id, false, true, true);
 246                         } else {
 247                                 catchupArticleById($link, $id, 0);
 248                         }
 249
 250                         if (!$_SESSION["bw_limit"]) {
 251                                 foreach ($cids as $cid) {
 252                                         if ($cid) {
 253                                                 outputArticleXML($link, $cid, false, false);
 254                                         }
 255                                 }
 256                         }
 257
 258 //                      if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
 259
 260                         if (time() - $_SESSION["view:counters_stamp"] > 5 && $mode == "prefetch") {
 261                                 print "<counters>";
 262                                 getAllCounters($link, $omode);
 263                                 print "</counters>";
 264                                 $_SESSION["view:counters_stamp"] = time();
 265                         }
 266
 267                         print "</reply>";
 268                 break; // view
 269
 270                 case "viewfeed":
 271
 272                         $print_exec_time = true;
 273                         $timing_info = getmicrotime();
 274
 275                         print "<reply>";
 276
 277                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 278
 279                         $omode = db_escape_string($_REQUEST["omode"]);
 280
 281                         $feed = db_escape_string($_REQUEST["feed"]);
 282                         $subop = db_escape_string($_REQUEST["subop"]);
 283                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 284                         $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
 285                         $cat_view = db_escape_string($_REQUEST["cat"]);
 286                         $next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 287                         $offset = db_escape_string($_REQUEST["skip"]);
 288                         $vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 289                         $csync = $_REQUEST["csync"];
 290                         $order_by = db_escape_string($_REQUEST["order_by"]);
 291
 292                         /* Feed -5 is a special case: it is used to display auxiliary information
 293                          * when there's nothing to load - e.g. no stuff in fresh feed */
 294
 295                         if ($feed == -5) {
 296                                 generate_dashboard_feed($link);
 297                                 print "</reply>";
 298                                 return;
 299                         }
 300
 301                         /* Updating a label ccache means recalculating all of the caches
 302                          * so for performance reasons we don't do that here */
 303
 304 //                      if (time() - $_SESSION["viewfeed:ccache_update_stamp"] > 120) {
 305                                 if ($feed >= 0) {
 306                                         ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 307                                 }
 308                                 $_SESSION["viewfeed:ccache_update_stamp"] = time();
 309 //                      }
 310
 311                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 312                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 313                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 314
 315                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 316                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 317                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 318                         }
 319
 320                         if (!$next_unread_feed) {
 321                                 print "<headlines id=\"$feed\" is_cat=\"$cat_view\"><![CDATA[";
 322                         } else {
 323                                 print "<headlines id=\"$next_unread_feed\" is_cat=\"$cat_view\"><![CDATA[";
 324                         }
 325
 326                         $override_order = false;
 327
 328                         switch ($order_by) {
 329                                 case "date":
 330                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 331                                                 $override_order = "date_entered";
 332                                         } else {
 333                                                 $override_order = "date_entered DESC";
 334                                         }
 335                                         break;
 336
 337                                 case "title":
 338                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 339                                                 $override_order = "title DESC, date_entered";
 340                                         } else {
 341                                                 $override_order = "title, date_entered DESC";
 342                                         }
 343                                         break;
 344
 345                                 case "score":
 346                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 347                                                 $override_order = "score, date_entered";
 348                                         } else {
 349                                                 $override_order = "score DESC, date_entered DESC";
 350                                         }
 351                                         break;
 352                         }
 353
 354                         $ret = outputHeadlinesList($link, $feed, $subop,
 355                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 356                                 $vgroup_last_feed, $override_order);
 357
 358                         $topmost_article_ids = $ret[0];
 359                         $headlines_count = $ret[1];
 360                         $returned_feed = $ret[2];
 361                         $disable_cache = $ret[3];
 362                         $vgroup_last_feed = $ret[4];
 363
 364                         print "]]></headlines>";
 365
 366                         print "<headlines-count value=\"$headlines_count\"/>";
 367                         print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 368
 369                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 370                                         $cat_view, true);
 371
 372                         if ($headlines_unread == -1) {
 373                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 374
 375                         }
 376
 377                         print "<headlines-unread value=\"$headlines_unread\"/>";
 378                         printf("<disable-cache value=\"%d\"/>", $disable_cache);
 379
 380                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 381
 382                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 383                                 print "<articles>";
 384                                 foreach ($topmost_article_ids as $id) {
 385                                         outputArticleXML($link, $id, $feed, false);
 386                                 }
 387                                 print "</articles>";
 388                         }
 389
 390                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 391
 392
 393 //                      if (get_pref($link, "SYNC_COUNTERS") ||
 394 //                                      time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
 395 //                              print "<counters>";
 396 //                              getAllCounters($link, $omode, $feed);
 397 //                              print "</counters>";
 398 //                      }
 399
 400                         if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop ||
 401                                 time() - $_SESSION["viewfeed:counters_stamp"] > 5) {
 402                                 if (!$offset) {
 403                                         print "<counters>";
 404                                         getAllCounters($link, $omode, $feed);
 405                                         print "</counters>";
 406                                         $_SESSION["viewfeed:counters_stamp"] = time();
 407                                 }
 408                         }
 409
 410                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 411
 412                         print_runtime_info($link);
 413
 414                         print "</reply>";
 415                 break; // viewfeed
 416
 417                 case "pref-feeds":
 418                         module_pref_feeds($link);
 419                 break; // pref-feeds
 420
 421                 case "pref-filters":
 422                         module_pref_filters($link);
 423                 break; // pref-filters
 424
 425                 case "pref-labels":
 426                         module_pref_labels($link);
 427                 break; // pref-labels
 428
 429                 case "pref-prefs":
 430                         module_pref_prefs($link);
 431                 break; // pref-prefs
 432
 433                 case "pref-users":
 434                         module_pref_users($link);
 435                 break; // prefs-users
 436
 437                 case "help":
 438                         module_help($link);
 439                 break; // help
 440
 441                 case "dlg":
 442                         module_popup_dialog($link);
 443                 break; // dlg
 444
 445                 case "pref-pub-items":
 446                         module_pref_pub_items($link);
 447                 break; // pref-pub-items
 448
 449                 case "globalUpdateFeeds":
 450                         // update feeds of all users, may be used anonymously
 451
 452                         print "<!--";
 453                         // Update all feeds needing a update.
 454                         update_daemon_common($link, 0, true, true);
 455                         print " -->";
 456
 457                         print "<rpc-reply>
 458                                 <message msg=\"All feeds updated\"/>
 459                         </rpc-reply>";
 460                 break; // globalUpdateFeeds
 461
 462                 case "pref-feed-browser":
 463                         module_pref_feed_browser($link);
 464                 break; // pref-feed-browser
 465
 466                 case "publish":
 467                         $key = db_escape_string($_REQUEST["key"]);
 468                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 469
 470                         $result = db_query($link, "SELECT login, owner_uid
 471                                 FROM ttrss_user_prefs, ttrss_users WHERE
 472                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 473                                 value = '$key' AND
 474                                 ttrss_users.id = owner_uid");
 475
 476                         if (db_num_rows($result) == 1) {
 477                                 $owner = db_fetch_result($result, 0, "owner_uid");
 478                                 $login = db_fetch_result($result, 0, "login");
 479
 480                                 generate_syndicated_feed($link, $owner, -2, false, $limit);
 481
 482                         } else {
 483                                 print "<error>User not found</error>";
 484                         }
 485                 break; // publish
 486
 487                 case "rss":
 488                         $feed = db_escape_string($_REQUEST["id"]);
 489                         $user = db_escape_string($_REQUEST["user"]);
 490                         $pass = db_escape_string($_REQUEST["pass"]);
 491                         $is_cat = $_REQUEST["is_cat"] != false;
 492                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 493
 494                         $search = db_escape_string($_REQUEST["q"]);
 495                         $match_on = db_escape_string($_REQUEST["m"]);
 496                         $search_mode = db_escape_string($_REQUEST["smode"]);
 497                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 498
 499                         if (SINGLE_USER_MODE) {
 500                                 authenticate_user($link, "admin", null);
 501                         }
 502
 503                         if (!$_SESSION["uid"] && $user && $pass) {
 504                                 authenticate_user($link, $user, $pass);
 505                         }
 506
 507                         if ($_SESSION["uid"] || http_authenticate_user($link)) {
 508                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 509                                         $search, $search_mode, $match_on, $view_mode);
 510                         }
 511                 break; // rss
 512
 513                 case "getUnread":
 514                         $login = db_escape_string($_REQUEST["login"]);
 515                         $fresh = $_REQUEST["fresh"] == "1";
 516
 517                         header("Content-Type: text/plain; charset=utf-8");
 518
 519                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 520
 521                         if (db_num_rows($result) == 1) {
 522                                 $uid = db_fetch_result($result, 0, "id");
 523
 524                                 print getGlobalUnread($link, $uid);
 525
 526                                 if ($fresh) {
 527                                         print ";";
 528                                         print getFeedArticles($link, -3, false, true, $uid);
 529                                 }
 530
 531                         } else {
 532                                 print "-1;User not found";
 533                         }
 534
 535                         $print_exec_time = false;
 536                 break; // getUnread
 537
 538                 case "digestTest":
 539                         header("Content-Type: text/plain");
 540                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 541                         $print_exec_time = false;
 542                 break; // digestTest
 543
 544                 case "digestSend":
 545                         header("Content-Type: text/plain");
 546                         send_headlines_digests($link);
 547                         $print_exec_time = false;
 548                 break; // digestSend
 549
 550                 case "getProfiles":
 551                         $login = db_escape_string($_REQUEST["login"]);
 552                         $password = db_escape_string($_REQUEST["password"]);
 553
 554                         if (authenticate_user($link, $login, $password)) {
 555                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
 556                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 557
 558                                 print "<select style='width: 100%' name='profile'>";
 559
 560                                 print "<option value='0'>" . __("Default profile") . "</option>";
 561
 562                                 while ($line = db_fetch_assoc($result)) {
 563                                         $id = $line["id"];
 564                                         $title = $line["title"];
 565
 566                                         print "<option value='$id'>$title</option>";
 567                                 }
 568
 569                                 print "</select>";
 570
 571                                 $_SESSION = array();
 572                         }
 573                 break;
 574
 575         } // Select action according to $op value.
 576
 577         // We close the connection to database.
 578         db_close($link);
 579 ?>
 580
 581 <?php if ($print_exec_time) { ?>
 582 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 583 <?php } ?>