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