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