backend.php

   1 <?php
   2         /* remove ill effects of magic quotes */
   3
   4         if (get_magic_quotes_gpc()) {
   5                 function stripslashes_deep($value) {
   6                         $value = is_array($value) ?
   7                                 array_map('stripslashes_deep', $value) : stripslashes($value);
   8                                 return $value;
   9                 }
  10
  11                 $_POST = array_map('stripslashes_deep', $_POST);
  12                 $_GET = array_map('stripslashes_deep', $_GET);
  13                 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
  14                 $_REQUEST = array_map('stripslashes_deep', $_REQUEST);
  15         }
  16
  17         require_once "functions.php";
  18         require_once "sessions.php";
  19         require_once "modules/backend-rpc.php";
  20         require_once "sanity_check.php";
  21         require_once "config.php";
  22         require_once "db.php";
  23         require_once "db-prefs.php";
  24
  25         no_cache_incantation();
  26
  27         if (ENABLE_TRANSLATIONS == true) {
  28                 startup_gettext();
  29         }
  30
  31         $script_started = getmicrotime();
  32
  33         $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  34
  35         if (!$link) {
  36                 if (DB_TYPE == "mysql") {
  37                         print mysql_error();
  38                 }
  39                 // PG seems to display its own errors just fine by default.
  40                 return;
  41         }
  42
  43         init_connection($link);
  44
  45         $op = $_REQUEST["op"];
  46         $subop = $_REQUEST["subop"];
  47         $mode = $_REQUEST["mode"];
  48
  49         $print_exec_time = false;
  50
  51         if ((!$op || $op == "rpc" || $op == "rss" ||
  52                         ($op == "view" && $mode != "zoom") ||
  53                         $op == "digestSend" || $op == "viewfeed" || $op == "publish" ||
  54                         $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
  55                                 header("Content-Type: application/xml; charset=utf-8");
  56
  57                                 if (ENABLE_GZIP_OUTPUT) {
  58                                         ob_start("ob_gzhandler");
  59                                 }
  60
  61                 } else {
  62                 if (!$_REQUEST["noxml"]) {
  63                         header("Content-Type: text/html; charset=utf-8");
  64                 } else {
  65                         header("Content-Type: text/plain; charset=utf-8");
  66                 }
  67         }
  68
  69         if (!$op) {
  70                 header("Content-Type: application/xml");
  71                 print_error_xml(7); exit;
  72         }
  73
  74         if (SINGLE_USER_MODE) {
  75                 authenticate_user($link, "admin", null);
  76         }
  77
  78         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  79                 && $op != "rss" && $op != "getUnread" && $op != "publish" && $op != "getProfiles") {
  80
  81                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  82                         print_error_xml(6); die;
  83                 } else {
  84                         print "
  85                         <html><body>
  86                                 <p>Error: Not logged in.</p>
  87                                 <script type=\"text/javascript\">
  88                                         if (parent.window != 'undefined') {
  89                                                 parent.window.location = \"tt-rss.php\";
  90                                         } else {
  91                                                 window.location = \"tt-rss.php\";
  92                                         }
  93                                 </script>
  94                         </body></html>
  95                         ";
  96                 }
  97                 exit;
  98         }
  99
 100         $purge_intervals = array(
 101                 0  => __("Use default"),
 102                 -1 => __("Never purge"),
 103                 5  => __("1 week old"),
 104                 14 => __("2 weeks old"),
 105                 31 => __("1 month old"),
 106                 60 => __("2 months old"),
 107                 90 => __("3 months old"));
 108
 109         $update_intervals = array(
 110                 0   => __("Default interval"),
 111                 -1  => __("Disable updates"),
 112                 15  => __("Each 15 minutes"),
 113                 30  => __("Each 30 minutes"),
 114                 60  => __("Hourly"),
 115                 240 => __("Each 4 hours"),
 116                 720 => __("Each 12 hours"),
 117                 1440 => __("Daily"),
 118                 10080 => __("Weekly"));
 119
 120         $update_intervals_nodefault = array(
 121                 -1  => __("Disable updates"),
 122                 15  => __("Each 15 minutes"),
 123                 30  => __("Each 30 minutes"),
 124                 60  => __("Hourly"),
 125                 240 => __("Each 4 hours"),
 126                 720 => __("Each 12 hours"),
 127                 1440 => __("Daily"),
 128                 10080 => __("Weekly"));
 129
 130         $update_methods = array(
 131                 0   => __("Default"),
 132                 1   => __("Magpie"),
 133                 2   => __("SimplePie"));
 134
 135         if (DEFAULT_UPDATE_METHOD == "1") {
 136                 $update_methods[0] .= ' (SimplePie)';
 137         } else {
 138                 $update_methods[0] .= ' (Magpie)';
 139         }
 140
 141         $access_level_names = array(
 142                 0 => __("User"),
 143                 5 => __("Power User"),
 144                 10 => __("Administrator"));
 145
 146         require_once "modules/pref-prefs.php";
 147         require_once "modules/popup-dialog.php";
 148         require_once "modules/help.php";
 149         require_once "modules/pref-feeds.php";
 150         require_once "modules/pref-filters.php";
 151         require_once "modules/pref-labels.php";
 152         require_once "modules/pref-users.php";
 153
 154         if (!sanity_check($link)) { return; }
 155
 156         switch($op) { // Select action according to $op value.
 157                 case "rpc":
 158                         // Handle remote procedure calls.
 159                         handle_rpc_request($link);
 160                 break; // rpc
 161
 162                 case "feeds":
 163                         if (ENABLE_GZIP_OUTPUT) {
 164                                 ob_start("ob_gzhandler");
 165                         }
 166
 167                         $tags = $_REQUEST["tags"];
 168
 169                         $subop = $_REQUEST["subop"];
 170
 171                         switch($subop) {
 172                                 case "catchupAll":
 173                                         db_query($link, "UPDATE ttrss_user_entries SET
 174                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 175                                         ccache_zero_all($link, $_SESSION["uid"]);
 176
 177                                 break;
 178
 179                                 case "collapse":
 180                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 181                                         toggle_collapse_cat($link, $cat_id);
 182                                         return;
 183                                 break;
 184
 185                                 case "catsortreset":
 186                                         db_query($link, "UPDATE ttrss_feed_categories
 187                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 188                                         return;
 189                                 break;
 190
 191                                 case "catsort":
 192                                         $corder = db_escape_string($_REQUEST["corder"]);
 193
 194                                         $cats = split(",", $corder);
 195
 196                                         for ($i = 0; $i < count($cats); $i++) {
 197                                                 $cat_id = $cats[$i];
 198
 199                                                 if ($cat_id > 0) {
 200                                                         db_query($link, "UPDATE ttrss_feed_categories
 201                                                                 SET order_id = '$i' WHERE id = '$cat_id' AND
 202                                                                 owner_uid = " . $_SESSION["uid"]);
 203                                                 }
 204                                         }
 205
 206                                         return;
 207                                 break;
 208
 209                         }
 210
 211                         outputFeedList($link, $tags);
 212                 break; // feeds
 213
 214                 case "view":
 215
 216                         $id = db_escape_string($_REQUEST["id"]);
 217                         $cids = split(",", db_escape_string($_REQUEST["cids"]));
 218                         $mode = db_escape_string($_REQUEST["mode"]);
 219                         $omode = db_escape_string($_REQUEST["omode"]);
 220
 221                         if ($mode != "zoom") print "<reply>";
 222
 223                         // in prefetch mode we only output requested cids, main article
 224                         // just gets marked as read (it already exists in client cache)
 225
 226                         if ($mode == "") {
 227                                 outputArticleXML($link, $id, false);
 228                         } else if ($mode == "zoom") {
 229                                 outputArticleXML($link, $id, false, true, true);
 230                         } else {
 231                                 catchupArticleById($link, $id, 0);
 232                         }
 233
 234                         if (!$_SESSION["bw_limit"]) {
 235                                 foreach ($cids as $cid) {
 236                                         if ($cid) {
 237                                                 outputArticleXML($link, $cid, false, false);
 238                                         }
 239                                 }
 240                         }
 241
 242                         /* if ($mode == "prefetch") {
 243                                 print "<counters><![CDATA[";
 244                                 print json_encode(getAllCounters($link, $omode));
 245                                 print "]]></counters>";
 246                         } */
 247
 248                         if ($mode != "zoom") print "</reply>";
 249                 break; // view
 250
 251                 case "viewfeed":
 252
 253                         $print_exec_time = true;
 254                         $timing_info = getmicrotime();
 255
 256                         print "<reply>";
 257
 258                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 259
 260                         $omode = db_escape_string($_REQUEST["omode"]);
 261
 262                         $feed = db_escape_string($_REQUEST["feed"]);
 263                         $subop = db_escape_string($_REQUEST["subop"]);
 264                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 265                         $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
 266                         @$cat_view = db_escape_string($_REQUEST["cat"]);
 267                         @$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 268                         @$offset = db_escape_string($_REQUEST["skip"]);
 269                         @$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 270                         $order_by = db_escape_string($_REQUEST["order_by"]);
 271
 272                         /* Feed -5 is a special case: it is used to display auxiliary information
 273                          * when there's nothing to load - e.g. no stuff in fresh feed */
 274
 275                         if ($feed == -5) {
 276                                 generate_dashboard_feed($link);
 277                                 print "</reply>";
 278                                 return;
 279                         }
 280
 281                         /* Updating a label ccache means recalculating all of the caches
 282                          * so for performance reasons we don't do that here */
 283
 284                         if ($feed >= 0) {
 285                                 ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 286                         }
 287
 288                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 289                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 290                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 291
 292                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 293                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 294                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 295                         }
 296
 297                         if (!$next_unread_feed) {
 298                                 print "<headlines id=\"$feed\" is_cat=\"$cat_view\"><![CDATA[";
 299                         } else {
 300                                 print "<headlines id=\"$next_unread_feed\" is_cat=\"$cat_view\"><![CDATA[";
 301                         }
 302
 303                         $override_order = false;
 304
 305                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
 306                                 $date_sort_field = "updated";
 307                         } else {
 308                                 $date_sort_field = "date_entered";
 309                         }
 310
 311                         switch ($order_by) {
 312                                 case "date":
 313                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 314                                                 $override_order = "$date_sort_field";
 315                                         } else {
 316                                                 $override_order = "$date_sort_field DESC";
 317                                         }
 318                                         break;
 319
 320                                 case "title":
 321                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 322                                                 $override_order = "title DESC, $date_sort_field";
 323                                         } else {
 324                                                 $override_order = "title, $date_sort_field DESC";
 325                                         }
 326                                         break;
 327
 328                                 case "score":
 329                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 330                                                 $override_order = "score, $date_sort_field";
 331                                         } else {
 332                                                 $override_order = "score DESC, $date_sort_field DESC";
 333                                         }
 334                                         break;
 335                         }
 336
 337                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);
 338
 339                         $ret = outputHeadlinesList($link, $feed, $subop,
 340                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 341                                 $vgroup_last_feed, $override_order);
 342
 343                         $topmost_article_ids = $ret[0];
 344                         $headlines_count = $ret[1];
 345                         $returned_feed = $ret[2];
 346                         $disable_cache = $ret[3];
 347                         $vgroup_last_feed = $ret[4];
 348
 349                         print "]]></headlines>";
 350
 351                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);
 352
 353                         //print "<headlines-count value=\"$headlines_count\"/>";
 354                         //print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 355
 356                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 357                                         $cat_view, true);
 358
 359                         if ($headlines_unread == -1) {
 360                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 361
 362                         }
 363
 364                         //print "<headlines-unread value=\"$headlines_unread\"/>";
 365                         //printf("<disable-cache value=\"%d\"/>", $disable_cache);
 366
 367                         print "<headlines-info><![CDATA[";
 368
 369                         $info = array("count" => (int) $headlines_count,
 370                                 "vgroup_last_feed" => $vgroup_last_feed,
 371                                 "unread" => (int) $headlines_unread,
 372                                 "disable_cache" => (bool) $disable_cache);
 373
 374                         print json_encode($info);
 375
 376                         print "]]></headlines-info>";
 377
 378                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 379
 380                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 381                                 print "<articles>";
 382                                 foreach ($topmost_article_ids as $id) {
 383                                         outputArticleXML($link, $id, $feed, false);
 384                                 }
 385                                 print "</articles>";
 386                         }
 387
 388                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 389
 390                          if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop) {
 391                                 print "<counters><![CDATA[";
 392                                 print json_encode(getAllCounters($link, $omode, $feed));
 393                                 print "]]></counters>";
 394                         }
 395
 396                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 397
 398                         print_runtime_info($link);
 399
 400                         print "</reply>";
 401                 break; // viewfeed
 402
 403                 case "pref-feeds":
 404                         module_pref_feeds($link);
 405                 break; // pref-feeds
 406
 407                 case "pref-filters":
 408                         module_pref_filters($link);
 409                 break; // pref-filters
 410
 411                 case "pref-labels":
 412                         module_pref_labels($link);
 413                 break; // pref-labels
 414
 415                 case "pref-prefs":
 416                         module_pref_prefs($link);
 417                 break; // pref-prefs
 418
 419                 case "pref-users":
 420                         module_pref_users($link);
 421                 break; // prefs-users
 422
 423                 case "help":
 424                         module_help($link);
 425                 break; // help
 426
 427                 case "dlg":
 428                         module_popup_dialog($link);
 429                 break; // dlg
 430
 431                 case "pref-pub-items":
 432                         module_pref_pub_items($link);
 433                 break; // pref-pub-items
 434
 435                 case "globalUpdateFeeds":
 436                         // update feeds of all users, may be used anonymously
 437
 438                         print "<!--";
 439                         // Update all feeds needing a update.
 440                         update_daemon_common($link, 0, true, true);
 441                         print " -->";
 442
 443                         print "<rpc-reply>
 444                                 <message msg=\"All feeds updated\"/>
 445                         </rpc-reply>";
 446                 break; // globalUpdateFeeds
 447
 448                 case "pref-feed-browser":
 449                         module_pref_feed_browser($link);
 450                 break; // pref-feed-browser
 451
 452                 case "rss":
 453                         $feed = db_escape_string($_REQUEST["id"]);
 454                         $key = db_escape_string($_REQUEST["key"]);
 455                         $is_cat = $_REQUEST["is_cat"] != false;
 456                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 457
 458                         $search = db_escape_string($_REQUEST["q"]);
 459                         $match_on = db_escape_string($_REQUEST["m"]);
 460                         $search_mode = db_escape_string($_REQUEST["smode"]);
 461                         $view_mode = db_escape_string($_REQUEST["view-mode"]);
 462
 463                         if (SINGLE_USER_MODE) {
 464                                 authenticate_user($link, "admin", null);
 465                         }
 466
 467                         if ($key && !$_SESSION["uid"]) {
 468                                 $result = db_query($link, "SELECT owner_uid FROM
 469                                         ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
 470
 471                                 if (db_num_rows($result) == 1)
 472                                         $_SESSION["uid"] = db_fetch_result($result, 0, "owner_uid");
 473
 474                         }
 475
 476                         if ($_SESSION["uid"]) {
 477                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 478                                         $search, $search_mode, $match_on, $view_mode);
 479                         }
 480                 break; // rss
 481
 482                 case "getUnread":
 483                         $login = db_escape_string($_REQUEST["login"]);
 484                         $fresh = $_REQUEST["fresh"] == "1";
 485
 486                         header("Content-Type: text/plain; charset=utf-8");
 487
 488                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 489
 490                         if (db_num_rows($result) == 1) {
 491                                 $uid = db_fetch_result($result, 0, "id");
 492
 493                                 print getGlobalUnread($link, $uid);
 494
 495                                 if ($fresh) {
 496                                         print ";";
 497                                         print getFeedArticles($link, -3, false, true, $uid);
 498                                 }
 499
 500                         } else {
 501                                 print "-1;User not found";
 502                         }
 503
 504                         $print_exec_time = false;
 505                 break; // getUnread
 506
 507                 case "digestTest":
 508                         header("Content-Type: text/plain");
 509                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 510                         $print_exec_time = false;
 511                 break; // digestTest
 512
 513                 case "digestSend":
 514                         header("Content-Type: text/plain");
 515                         send_headlines_digests($link);
 516                         $print_exec_time = false;
 517                 break; // digestSend
 518
 519                 case "getProfiles":
 520                         $login = db_escape_string($_REQUEST["login"]);
 521                         $password = db_escape_string($_REQUEST["password"]);
 522
 523                         if (authenticate_user($link, $login, $password)) {
 524                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
 525                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 526
 527                                 print "<select style='width: 100%' name='profile'>";
 528
 529                                 print "<option value='0'>" . __("Default profile") . "</option>";
 530
 531                                 while ($line = db_fetch_assoc($result)) {
 532                                         $id = $line["id"];
 533                                         $title = $line["title"];
 534
 535                                         print "<option value='$id'>$title</option>";
 536                                 }
 537
 538                                 print "</select>";
 539
 540                                 $_SESSION = array();
 541                         }
 542                 break;
 543
 544         } // Select action according to $op value.
 545
 546         // We close the connection to database.
 547         db_close($link);
 548 ?>
 549
 550 <?php if ($print_exec_time) { ?>
 551 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 552 <?php } ?>