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 == "rss" || $op == "dlg") && !$_REQUEST["noxml"]) {
  52                         header("Content-Type: application/xml; charset=utf-8");
  53         } else {
  54                         header("Content-Type: text/plain; charset=utf-8");
  55         }
  56
  57         if (ENABLE_GZIP_OUTPUT) {
  58                 ob_start("ob_gzhandler");
  59         }
  60
  61         if (SINGLE_USER_MODE) {
  62                 authenticate_user($link, "admin", null);
  63         }
  64
  65         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds" &&
  66                                 $op != "rss" && $op != "getUnread" && $op != "getProfiles") {
  67
  68                 header("Content-Type: text/plain");
  69                 print json_encode(array("error" => array("code" => 6)));
  70                 return;
  71         }
  72
  73         $purge_intervals = array(
  74                 0  => __("Use default"),
  75                 -1 => __("Never purge"),
  76                 5  => __("1 week old"),
  77                 14 => __("2 weeks old"),
  78                 31 => __("1 month old"),
  79                 60 => __("2 months old"),
  80                 90 => __("3 months old"));
  81
  82         $update_intervals = array(
  83                 0   => __("Default interval"),
  84                 -1  => __("Disable updates"),
  85                 15  => __("Each 15 minutes"),
  86                 30  => __("Each 30 minutes"),
  87                 60  => __("Hourly"),
  88                 240 => __("Each 4 hours"),
  89                 720 => __("Each 12 hours"),
  90                 1440 => __("Daily"),
  91                 10080 => __("Weekly"));
  92
  93         $update_intervals_nodefault = array(
  94                 -1  => __("Disable updates"),
  95                 15  => __("Each 15 minutes"),
  96                 30  => __("Each 30 minutes"),
  97                 60  => __("Hourly"),
  98                 240 => __("Each 4 hours"),
  99                 720 => __("Each 12 hours"),
 100                 1440 => __("Daily"),
 101                 10080 => __("Weekly"));
 102
 103         $update_methods = array(
 104                 0   => __("Default"),
 105                 1   => __("Magpie"),
 106                 2   => __("SimplePie"),
 107                 3   => __("Twitter OAuth"));
 108
 109         if (DEFAULT_UPDATE_METHOD == "1") {
 110                 $update_methods[0] .= ' (SimplePie)';
 111         } else {
 112                 $update_methods[0] .= ' (Magpie)';
 113         }
 114
 115         $access_level_names = array(
 116                 0 => __("User"),
 117                 5 => __("Power User"),
 118                 10 => __("Administrator"));
 119
 120         require_once "modules/pref-prefs.php";
 121         require_once "modules/popup-dialog.php";
 122         require_once "modules/help.php";
 123         require_once "modules/pref-feeds.php";
 124         require_once "modules/pref-filters.php";
 125         require_once "modules/pref-labels.php";
 126         require_once "modules/pref-users.php";
 127
 128         $error = sanity_check($link);
 129
 130         if ($error['code'] != 0) {
 131                 print json_encode(array("error" => $error));
 132                 return;
 133         }
 134
 135         switch($op) { // Select action according to $op value.
 136                 case "rpc":
 137                         // Handle remote procedure calls.
 138                         handle_rpc_request($link);
 139                 break; // rpc
 140
 141                 case "feeds":
 142                         $subop = $_REQUEST["subop"];
 143                         $root = (bool)$_REQUEST["root"];
 144
 145                         switch($subop) {
 146                                 case "catchupAll":
 147                                         db_query($link, "UPDATE ttrss_user_entries SET
 148                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 149                                         ccache_zero_all($link, $_SESSION["uid"]);
 150
 151                                 break;
 152
 153                                 case "collapse":
 154                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 155                                         $mode = (int) db_escape_string($_REQUEST['mode']);
 156                                         toggle_collapse_cat($link, $cat_id, $mode);
 157                                         return;
 158                                 break;
 159                         }
 160
 161                         if (!$root) {
 162                                 print json_encode(outputFeedList($link));
 163                         } else {
 164
 165                                 $feeds = outputFeedList($link, false);
 166
 167                                 $root = array();
 168                                 $root['id'] = 'root';
 169                                 $root['name'] = __('Feeds');
 170                                 $root['items'] = $feeds['items'];
 171
 172                                 $fl = array();
 173                                 $fl['identifier'] = 'id';
 174                                 $fl['label'] = 'name';
 175                                 $fl['items'] = array($root);
 176
 177                                 print json_encode($fl);
 178                         }
 179
 180                 break; // feeds
 181
 182                 case "la":
 183                         $id = db_escape_string($_REQUEST['id']);
 184
 185                         $result = db_query($link, "SELECT link FROM ttrss_entries, ttrss_user_entries
 186                                 WHERE id = '$id' AND id = ref_id AND owner_uid = '".$_SESSION['uid']."'");
 187
 188                         if (db_num_rows($result) == 1) {
 189                                 $article_url = db_fetch_result($result, 0, 'link');
 190                                 $article_url = str_replace("\n", "", $article_url);
 191
 192                                 header("Location: $article_url");
 193                                 return;
 194
 195                         } else {
 196                                 print_error(__("Article not found."));
 197                         }
 198                 break;
 199
 200                 case "view":
 201
 202                         $id = db_escape_string($_REQUEST["id"]);
 203                         $cids = split(",", db_escape_string($_REQUEST["cids"]));
 204                         $mode = db_escape_string($_REQUEST["mode"]);
 205                         $omode = db_escape_string($_REQUEST["omode"]);
 206
 207                         // in prefetch mode we only output requested cids, main article
 208                         // just gets marked as read (it already exists in client cache)
 209
 210                         $articles = array();
 211
 212                         if ($mode == "") {
 213                                 array_push($articles, format_article($link, $id, false));
 214                         } else if ($mode == "zoom") {
 215                                 array_push($articles, format_article($link, $id, false, true, true));
 216                         } else {
 217                                 catchupArticleById($link, $id, 0);
 218                         }
 219
 220                         if (!$_SESSION["bw_limit"]) {
 221                                 foreach ($cids as $cid) {
 222                                         if ($cid) {
 223                                                 array_push($articles, format_article($link, $cid, false, false));
 224                                         }
 225                                 }
 226                         }
 227
 228                         print json_encode($articles);
 229
 230                 break; // view
 231
 232                 case "viewfeed":
 233
 234                         $timing_info = getmicrotime();
 235
 236                         $reply = array();
 237
 238                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 239
 240                         $omode = db_escape_string($_REQUEST["omode"]);
 241
 242                         $feed = db_escape_string($_REQUEST["feed"]);
 243                         $subop = db_escape_string($_REQUEST["subop"]);
 244                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 245                         $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
 246                         @$cat_view = db_escape_string($_REQUEST["cat"]);
 247                         @$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 248                         @$offset = db_escape_string($_REQUEST["skip"]);
 249                         @$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 250                         $order_by = db_escape_string($_REQUEST["order_by"]);
 251
 252                         /* Feed -5 is a special case: it is used to display auxiliary information
 253                          * when there's nothing to load - e.g. no stuff in fresh feed */
 254
 255                         if ($feed == -5) {
 256                                 print json_encode(generate_dashboard_feed($link));
 257                                 return;
 258                         }
 259
 260                         $result = false;
 261
 262                         if ($feed < -10) {
 263                                 $label_feed = -11-$feed;
 264                                 $result = db_query($link, "SELECT id FROM ttrss_labels2 WHERE
 265                                         id = '$label_feed' AND owner_uid = " . $_SESSION['uid']);
 266                         } else if (!$cat_view && $feed > 0) {
 267                                 $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE
 268                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 269                         } else if ($cat_view && $feed > 0) {
 270                                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE
 271                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 272                         }
 273
 274                         if ($result && db_num_rows($result) == 0) {
 275                                 print json_encode(generate_error_feed($link, __("Feed not found.")));
 276                                 return;
 277                         }
 278
 279                         /* Updating a label ccache means recalculating all of the caches
 280                          * so for performance reasons we don't do that here */
 281
 282                         if ($feed >= 0) {
 283                                 ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 284                         }
 285
 286                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 287                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 288                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 289
 290                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 291                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 292                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 293                         }
 294
 295                         $reply['headlines'] = array();
 296
 297                         if (!$next_unread_feed)
 298                                 $reply['headlines']['id'] = $feed;
 299                         else
 300                                 $reply['headlines']['id'] = $next_unread_feed;
 301
 302                         $reply['headlines']['is_cat'] = (bool) $cat_view;
 303
 304                         $override_order = false;
 305
 306                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
 307                                 $date_sort_field = "updated";
 308                         } else {
 309                                 $date_sort_field = "date_entered";
 310                         }
 311
 312                         switch ($order_by) {
 313                                 case "date":
 314                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 315                                                 $override_order = "$date_sort_field";
 316                                         } else {
 317                                                 $override_order = "$date_sort_field DESC";
 318                                         }
 319                                         break;
 320
 321                                 case "title":
 322                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 323                                                 $override_order = "title DESC, $date_sort_field";
 324                                         } else {
 325                                                 $override_order = "title, $date_sort_field DESC";
 326                                         }
 327                                         break;
 328
 329                                 case "score":
 330                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 331                                                 $override_order = "score, $date_sort_field";
 332                                         } else {
 333                                                 $override_order = "score DESC, $date_sort_field DESC";
 334                                         }
 335                                         break;
 336                         }
 337
 338                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);
 339
 340                         $ret = format_headlines_list($link, $feed, $subop,
 341                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 342                                 $vgroup_last_feed, $override_order);
 343
 344                         $topmost_article_ids = $ret[0];
 345                         $headlines_count = $ret[1];
 346                         $returned_feed = $ret[2];
 347                         $disable_cache = $ret[3];
 348                         $vgroup_last_feed = $ret[4];
 349
 350                         $reply['headlines']['content'] = $ret[5];
 351                         $reply['headlines']['toolbar'] = $ret[6];
 352
 353                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);
 354
 355                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 356                                         $cat_view, true);
 357
 358                         if ($headlines_unread == -1) {
 359                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 360                         }
 361
 362                         $reply['headlines-info'] = array("count" => (int) $headlines_count,
 363                                 "vgroup_last_feed" => $vgroup_last_feed,
 364                                 "unread" => (int) $headlines_unread,
 365                                 "disable_cache" => (bool) $disable_cache);
 366
 367                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 368
 369                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 370                                 $articles = array();
 371
 372                                 foreach ($topmost_article_ids as $id) {
 373                                         array_push($articles, format_article($link, $id, $feed, false));
 374                                 }
 375
 376                                 $reply['articles'] = $articles;
 377                         }
 378
 379                         if ($subop) {
 380                                 $reply['counters'] = getAllCounters($link, $omode, $feed);
 381                         }
 382
 383                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 384
 385                         $reply['runtime-info'] = make_runtime_info($link);
 386
 387                         print json_encode($reply);
 388
 389                 break; // viewfeed
 390
 391                 case "pref-feeds":
 392                         module_pref_feeds($link);
 393                 break; // pref-feeds
 394
 395                 case "pref-filters":
 396                         module_pref_filters($link);
 397                 break; // pref-filters
 398
 399                 case "pref-labels":
 400                         module_pref_labels($link);
 401                 break; // pref-labels
 402
 403                 case "pref-prefs":
 404                         module_pref_prefs($link);
 405                 break; // pref-prefs
 406
 407                 case "pref-users":
 408                         module_pref_users($link);
 409                 break; // prefs-users
 410
 411                 case "help":
 412                         module_help($link);
 413                 break; // help
 414
 415                 case "dlg":
 416                         module_popup_dialog($link);
 417                 break; // dlg
 418
 419                 case "pref-pub-items":
 420                         module_pref_pub_items($link);
 421                 break; // pref-pub-items
 422
 423                 case "globalUpdateFeeds":
 424                         // Update all feeds needing a update.
 425                         update_daemon_common($link, 0, true, true);
 426                 break; // globalUpdateFeeds
 427
 428                 case "pref-feed-browser":
 429                         module_pref_feed_browser($link);
 430                 break; // pref-feed-browser
 431
 432                 case "rss":
 433                         $feed = db_escape_string($_REQUEST["id"]);
 434                         $key = db_escape_string($_REQUEST["key"]);
 435                         $is_cat = $_REQUEST["is_cat"] != false;
 436                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 437
 438                         $search = db_escape_string($_REQUEST["q"]);
 439                         $match_on = db_escape_string($_REQUEST["m"]);
 440                         $search_mode = db_escape_string($_REQUEST["smode"]);
 441                         $view_mode = db_escape_string($_REQUEST["view-mode"]);
 442
 443                         if (SINGLE_USER_MODE) {
 444                                 authenticate_user($link, "admin", null);
 445                         }
 446
 447                         $owner_id = false;
 448
 449                         if ($key) {
 450                                 $result = db_query($link, "SELECT owner_uid FROM
 451                                         ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
 452
 453                                 if (db_num_rows($result) == 1)
 454                                         $owner_id = db_fetch_result($result, 0, "owner_uid");
 455                         }
 456
 457                         if ($owner_id) {
 458                                 $_SESSION['uid'] = $owner_id;
 459
 460                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 461                                         $search, $search_mode, $match_on, $view_mode);
 462                         } else {
 463                                 header('HTTP/1.1 403 Forbidden');
 464                         }
 465                 break; // rss
 466
 467                 case "getUnread":
 468                         $login = db_escape_string($_REQUEST["login"]);
 469                         $fresh = $_REQUEST["fresh"] == "1";
 470
 471                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 472
 473                         if (db_num_rows($result) == 1) {
 474                                 $uid = db_fetch_result($result, 0, "id");
 475
 476                                 print getGlobalUnread($link, $uid);
 477
 478                                 if ($fresh) {
 479                                         print ";";
 480                                         print getFeedArticles($link, -3, false, true, $uid);
 481                                 }
 482
 483                         } else {
 484                                 print "-1;User not found";
 485                         }
 486
 487                         $print_exec_time = false;
 488                 break; // getUnread
 489
 490                 case "digestTest":
 491                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 492                         $print_exec_time = false;
 493                 break; // digestTest
 494
 495                 case "digestSend":
 496                         send_headlines_digests($link);
 497                         $print_exec_time = false;
 498                 break; // digestSend
 499
 500                 case "loading":
 501                         print __("Loading, please wait...") . " " .
 502                                 "<img src='images/indicator_tiny.gif'>";
 503
 504                 case "getProfiles":
 505                         $login = db_escape_string($_REQUEST["login"]);
 506                         $password = db_escape_string($_REQUEST["password"]);
 507
 508                         if (authenticate_user($link, $login, $password)) {
 509                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
 510                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 511
 512                                 print "<select style='width: 100%' name='profile'>";
 513
 514                                 print "<option value='0'>" . __("Default profile") . "</option>";
 515
 516                                 while ($line = db_fetch_assoc($result)) {
 517                                         $id = $line["id"];
 518                                         $title = $line["title"];
 519
 520                                         print "<option value='$id'>$title</option>";
 521                                 }
 522
 523                                 print "</select>";
 524
 525                                 $_SESSION = array();
 526                         }
 527                 break;
 528
 529         } // Select action according to $op value.
 530
 531
 532         // We close the connection to database.
 533         db_close($link);
 534 ?>
 535
 536 <?php if ($print_exec_time) { ?>
 537 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 538 <?php } ?>