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 (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 = $_GET["tags"];
 163
 164                         $subop = $_GET["subop"];
 165
 166                         switch($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                                         $cat_id = db_escape_string($_GET["cid"]);
 176
 177                                         if ($cat_id > 0) {
 178                                                 db_query($link, "UPDATE ttrss_feed_categories SET
 179                                                         collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 180                                                         $_SESSION["uid"]);
 181                                         } else {
 182                                                 $pref_name = '';
 183
 184                                                 switch ($cat_id) {
 185                                                 case -1:
 186                                                         $pref_name = '_COLLAPSED_SPECIAL';
 187                                                         break;
 188                                                 case -2:
 189                                                         $pref_name = '_COLLAPSED_LABELS';
 190                                                         break;
 191                                                 case 0:
 192                                                         $pref_name = '_COLLAPSED_UNCAT';
 193                                                         break;
 194                                                 }
 195
 196                                                 if ($pref_name) {
 197                                                         if (get_pref($link, $pref_name)) {
 198                                                                 set_pref($link, $pref_name, 'false');
 199                                                         } else {
 200                                                                 set_pref($link, $pref_name, 'true');
 201                                                         }
 202                                                 }
 203                                         }
 204                                         return;
 205                                 break;
 206
 207                                 case "catsortreset":
 208                                         db_query($link, "UPDATE ttrss_feed_categories
 209                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 210                                         return;
 211                                 break;
 212
 213                                 case "catsort":
 214                                         $corder = db_escape_string($_GET["corder"]);
 215
 216                                         $cats = split(",", $corder);
 217
 218                                         for ($i = 0; $i < count($cats); $i++) {
 219                                                 $cat_id = $cats[$i];
 220
 221                                                 if ($cat_id > 0) {
 222                                                         db_query($link, "UPDATE ttrss_feed_categories
 223                                                                 SET order_id = '$i' WHERE id = '$cat_id' AND
 224                                                                 owner_uid = " . $_SESSION["uid"]);
 225                                                 }
 226                                         }
 227
 228                                         return;
 229                                 break;
 230
 231                         }
 232
 233                         $_SESSION["viewfeed:counters_stamp"] = time();
 234
 235                         outputFeedList($link, $tags);
 236                 break; // feeds
 237
 238                 case "view":
 239
 240                         $id = db_escape_string($_GET["id"]);
 241                         $feed_id = db_escape_string($_GET["feed"]);
 242                         $cids = split(",", db_escape_string($_GET["cids"]));
 243                         $mode = db_escape_string($_GET["mode"]);
 244                         $omode = db_escape_string($_GET["omode"]);
 245
 246                         $csync = $_GET["csync"];
 247
 248                         print "<reply>";
 249
 250                         // in prefetch mode we only output requested cids, main article
 251                         // just gets marked as read (it already exists in client cache)
 252
 253                         if ($mode == "") {
 254                                 outputArticleXML($link, $id, $feed_id);
 255                         } else if ($mode == "zoom") {
 256                                 outputArticleXML($link, $id, $feed_id, true, true);
 257                         } else {
 258                                 catchupArticleById($link, $id, 0);
 259                                 ccache_update($link, $feed_id, $_SESSION["uid"]);
 260                         }
 261
 262                         if (!$_SESSION["bw_limit"]) {
 263                                 foreach ($cids as $cid) {
 264                                         if ($cid) {
 265                                                 outputArticleXML($link, $cid, $feed_id, false);
 266                                         }
 267                                 }
 268                         }
 269
 270 //                      if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
 271
 272                         if (time() - $_SESSION["view:counters_stamp"] > 3 && $mode == "prefetch") {
 273                                 print "<counters>";
 274                                 getAllCounters($link, $omode);
 275                                 print "</counters>";
 276                                 $_SESSION["view:counters_stamp"] = time();
 277                         }
 278
 279                         print "</reply>";
 280                 break; // view
 281
 282                 case "viewfeed":
 283
 284                         $print_exec_time = true;
 285                         $timing_info = getmicrotime();
 286
 287                         print "<reply>";
 288
 289                         if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 290
 291                         $omode = db_escape_string($_GET["omode"]);
 292
 293                         $feed = db_escape_string($_GET["feed"]);
 294                         $subop = db_escape_string($_GET["subop"]);
 295                         $view_mode = db_escape_string($_GET["view_mode"]);
 296                         $limit = db_escape_string($_GET["limit"]);
 297                         $cat_view = db_escape_string($_GET["cat"]);
 298                         $next_unread_feed = db_escape_string($_GET["nuf"]);
 299                         $offset = db_escape_string($_GET["skip"]);
 300                         $vgroup_last_feed = db_escape_string($_GET["vgrlf"]);
 301                         $csync = $_GET["csync"];
 302                         $order_by = db_escape_string($_GET["order_by"]);
 303
 304                         /* Updating a label ccache means recalculating all of the caches
 305                          * so for performance reasons we don't do that here */
 306
 307 //                      if (time() - $_SESSION["viewfeed:ccache_update_stamp"] > 120) {
 308                                 if ($feed >= 0) {
 309                                         ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 310                                 }
 311                                 $_SESSION["viewfeed:ccache_update_stamp"] = time();
 312 //                      }
 313
 314                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 315                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 316                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 317
 318                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 319                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 320                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 321                         }
 322
 323                         if (!$next_unread_feed) {
 324                                 print "<headlines id=\"$feed\" is_cat=\"$cat_view\"><![CDATA[";
 325                         } else {
 326                                 print "<headlines id=\"$next_unread_feed\" is_cat=\"$cat_view\"><![CDATA[";
 327                         }
 328
 329                         $override_order = false;
 330
 331                         switch ($order_by) {
 332                                 case "date":
 333                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 334                                                 $override_order = "updated";
 335                                         } else {
 336                                                 $override_order = "updated DESC";
 337                                         }
 338                                         break;
 339
 340                                 case "title":
 341                                         $override_order = "updated DESC";
 342                                         break;
 343
 344                                 case "score":
 345                                         $override_order = "score DESC";
 346                                         break;
 347                         }
 348
 349                         $ret = outputHeadlinesList($link, $feed, $subop,
 350                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 351                                 $vgroup_last_feed, $override_order);
 352
 353                         $topmost_article_ids = $ret[0];
 354                         $headlines_count = $ret[1];
 355                         $returned_feed = $ret[2];
 356                         $disable_cache = $ret[3];
 357                         $vgroup_last_feed = $ret[4];
 358
 359                         print "]]></headlines>";
 360
 361                         print "<headlines-count value=\"$headlines_count\"/>";
 362                         print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 363
 364                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 365                                         $cat_view, true);
 366
 367                         if ($headlines_unread == -1) {
 368                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 369
 370                         }
 371
 372                         print "<headlines-unread value=\"$headlines_unread\"/>";
 373                         printf("<disable-cache value=\"%d\"/>", $disable_cache);
 374
 375                         if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 376
 377                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 378                                 print "<articles>";
 379                                 foreach ($topmost_article_ids as $id) {
 380                                         outputArticleXML($link, $id, $feed, false);
 381                                 }
 382                                 print "</articles>";
 383                         }
 384
 385                         if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 386
 387
 388 //                      if (get_pref($link, "SYNC_COUNTERS") ||
 389 //                                      time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
 390 //                              print "<counters>";
 391 //                              getAllCounters($link, $omode, $feed);
 392 //                              print "</counters>";
 393 //                      }
 394
 395                         if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop ||
 396                                 time() - $_SESSION["viewfeed:counters_stamp"] > 60) {
 397                                 if (!$offset) {
 398                                         print "<counters>";
 399                                         getAllCounters($link, $omode, $feed);
 400                                         print "</counters>";
 401                                         $_SESSION["viewfeed:counters_stamp"] = time();
 402                                 }
 403                         }
 404
 405                         if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 406
 407                         print_runtime_info($link);
 408
 409                         print "</reply>";
 410                 break; // viewfeed
 411
 412                 case "pref-feeds":
 413                         module_pref_feeds($link);
 414                 break; // pref-feeds
 415
 416                 case "pref-filters":
 417                         module_pref_filters($link);
 418                 break; // pref-filters
 419
 420                 case "pref-labels":
 421                         module_pref_labels($link);
 422                 break; // pref-labels
 423
 424                 case "pref-prefs":
 425                         module_pref_prefs($link);
 426                 break; // pref-prefs
 427
 428                 case "pref-users":
 429                         module_pref_users($link);
 430                 break; // prefs-users
 431
 432                 case "help":
 433                         module_help($link);
 434                 break; // help
 435
 436                 case "dlg":
 437                         module_popup_dialog($link);
 438                 break; // dlg
 439
 440                 case "pref-pub-items":
 441                         module_pref_pub_items($link);
 442                 break; // pref-pub-items
 443
 444                 case "globalUpdateFeeds":
 445                         // update feeds of all users, may be used anonymously
 446
 447                         print "<!--";
 448                         // Update all feeds needing a update.
 449                         update_daemon_common($link, 0, true, true);
 450                         print " -->";
 451
 452                         print "<rpc-reply>
 453                                 <message msg=\"All feeds updated\"/>
 454                         </rpc-reply>";
 455                 break; // globalUpdateFeeds
 456
 457                 case "pref-feed-browser":
 458                         module_pref_feed_browser($link);
 459                 break; // pref-feed-browser
 460
 461                 case "publish":
 462                         $key = db_escape_string($_GET["key"]);
 463                         $limit = (int)db_escape_string($_GET["limit"]);
 464
 465                         $result = db_query($link, "SELECT login, owner_uid
 466                                 FROM ttrss_user_prefs, ttrss_users WHERE
 467                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 468                                 value = '$key' AND
 469                                 ttrss_users.id = owner_uid");
 470
 471                         if (db_num_rows($result) == 1) {
 472                                 $owner = db_fetch_result($result, 0, "owner_uid");
 473                                 $login = db_fetch_result($result, 0, "login");
 474
 475                                 generate_syndicated_feed($link, $owner, -2, false, $limit);
 476
 477                         } else {
 478                                 print "<error>User not found</error>";
 479                         }
 480                 break; // publish
 481
 482                 case "rss":
 483                         $feed = db_escape_string($_GET["id"]);
 484                         $user = db_escape_string($_GET["user"]);
 485                         $pass = db_escape_string($_GET["pass"]);
 486                         $is_cat = $_GET["is_cat"] != false;
 487                         $limit = (int)db_escape_string($_GET["limit"]);
 488
 489                         $search = db_escape_string($_GET["q"]);
 490                         $match_on = db_escape_string($_GET["m"]);
 491                         $search_mode = db_escape_string($_GET["smode"]);
 492
 493                         if (SINGLE_USER_MODE) {
 494                                 authenticate_user($link, "admin", null);
 495                         }
 496
 497                         if (!$_SESSION["uid"] && $user && $pass) {
 498                                 authenticate_user($link, $user, $pass);
 499                         }
 500
 501                         if ($_SESSION["uid"] ||
 502                                 http_authenticate_user($link)) {
 503
 504                                         generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 505                                                 $search, $search_mode, $match_on);
 506                         }
 507                 break; // rss
 508
 509                 case "getUnread":
 510                         $login = db_escape_string($_GET["login"]);
 511
 512                         header("Content-Type: text/plain; charset=utf-8");
 513
 514                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 515
 516                         if (db_num_rows($result) == 1) {
 517                                 $uid = db_fetch_result($result, 0, "id");
 518                                 print getGlobalUnread($link, $uid);
 519                         } else {
 520                                 print "-1;User not found";
 521                         }
 522
 523                         $print_exec_time = false;
 524                 break; // getUnread
 525
 526                 case "digestTest":
 527                         header("Content-Type: text/plain");
 528                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 529                         $print_exec_time = false;
 530                 break; // digestTest
 531
 532                 case "digestSend":
 533                         header("Content-Type: text/plain");
 534                         send_headlines_digests($link);
 535                         $print_exec_time = false;
 536                 break; // digestSend
 537
 538         } // Select action according to $op value.
 539
 540         // We close the connection to database.
 541         db_close($link);
 542 ?>
 543
 544 <?php if ($print_exec_time) { ?>
 545 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 546 <?php } ?>