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         startup_gettext();
  28
  29         $script_started = getmicrotime();
  30
  31         $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  32
  33         if (!$link) {
  34                 if (DB_TYPE == "mysql") {
  35                         print mysql_error();
  36                 }
  37                 // PG seems to display its own errors just fine by default.
  38                 return;
  39         }
  40
  41         init_connection($link);
  42
  43         $op = $_REQUEST["op"];
  44         $subop = $_REQUEST["subop"];
  45         $mode = $_REQUEST["mode"];
  46
  47         $print_exec_time = false;
  48
  49         if ((!$op || $op == "rss" || $op == "dlg") && !$_REQUEST["noxml"]) {
  50                         header("Content-Type: application/xml; charset=utf-8");
  51         } else {
  52                         header("Content-Type: text/plain; charset=utf-8");
  53         }
  54
  55         if (ENABLE_GZIP_OUTPUT) {
  56                 ob_start("ob_gzhandler");
  57         }
  58
  59         if (SINGLE_USER_MODE) {
  60                 authenticate_user($link, "admin", null);
  61         }
  62
  63         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds" &&
  64                                 $op != "rss" && $op != "getUnread" && $op != "getProfiles") {
  65
  66                 header("Content-Type: text/plain");
  67                 print json_encode(array("error" => array("code" => 6)));
  68                 return;
  69         }
  70
  71         $purge_intervals = array(
  72                 0  => __("Use default"),
  73                 -1 => __("Never purge"),
  74                 5  => __("1 week old"),
  75                 14 => __("2 weeks old"),
  76                 31 => __("1 month old"),
  77                 60 => __("2 months old"),
  78                 90 => __("3 months old"));
  79
  80         $update_intervals = array(
  81                 0   => __("Default interval"),
  82                 -1  => __("Disable updates"),
  83                 15  => __("Each 15 minutes"),
  84                 30  => __("Each 30 minutes"),
  85                 60  => __("Hourly"),
  86                 240 => __("Each 4 hours"),
  87                 720 => __("Each 12 hours"),
  88                 1440 => __("Daily"),
  89                 10080 => __("Weekly"));
  90
  91         $update_intervals_nodefault = array(
  92                 -1  => __("Disable updates"),
  93                 15  => __("Each 15 minutes"),
  94                 30  => __("Each 30 minutes"),
  95                 60  => __("Hourly"),
  96                 240 => __("Each 4 hours"),
  97                 720 => __("Each 12 hours"),
  98                 1440 => __("Daily"),
  99                 10080 => __("Weekly"));
 100
 101         $update_methods = array(
 102                 0   => __("Default"),
 103                 1   => __("Magpie"),
 104                 2   => __("SimplePie"),
 105                 3   => __("Twitter OAuth"));
 106
 107         if (DEFAULT_UPDATE_METHOD == "1") {
 108                 $update_methods[0] .= ' (SimplePie)';
 109         } else {
 110                 $update_methods[0] .= ' (Magpie)';
 111         }
 112
 113         $access_level_names = array(
 114                 0 => __("User"),
 115                 5 => __("Power User"),
 116                 10 => __("Administrator"));
 117
 118         require_once "modules/pref-prefs.php";
 119         require_once "modules/popup-dialog.php";
 120         require_once "modules/help.php";
 121         require_once "modules/pref-feeds.php";
 122         require_once "modules/pref-filters.php";
 123         require_once "modules/pref-labels.php";
 124         require_once "modules/pref-users.php";
 125
 126         $error = sanity_check($link);
 127
 128         if ($error['code'] != 0) {
 129                 print json_encode(array("error" => $error));
 130                 return;
 131         }
 132
 133         switch($op) { // Select action according to $op value.
 134                 case "rpc":
 135                         // Handle remote procedure calls.
 136                         handle_rpc_request($link);
 137                 break; // rpc
 138
 139                 case "feeds":
 140                         $subop = $_REQUEST["subop"];
 141                         $root = (bool)$_REQUEST["root"];
 142
 143                         switch($subop) {
 144                                 case "catchupAll":
 145                                         db_query($link, "UPDATE ttrss_user_entries SET
 146                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 147                                         ccache_zero_all($link, $_SESSION["uid"]);
 148
 149                                 break;
 150
 151                                 case "collapse":
 152                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 153                                         $mode = (int) db_escape_string($_REQUEST['mode']);
 154                                         toggle_collapse_cat($link, $cat_id, $mode);
 155                                         return;
 156                                 break;
 157                         }
 158
 159                         if (!$root) {
 160                                 print json_encode(outputFeedList($link));
 161                         } else {
 162
 163                                 $feeds = outputFeedList($link, false);
 164
 165                                 $root = array();
 166                                 $root['id'] = 'root';
 167                                 $root['name'] = __('Feeds');
 168                                 $root['items'] = $feeds['items'];
 169
 170                                 $fl = array();
 171                                 $fl['identifier'] = 'id';
 172                                 $fl['label'] = 'name';
 173                                 $fl['items'] = array($root);
 174
 175                                 print json_encode($fl);
 176                         }
 177
 178                 break; // feeds
 179
 180                 case "la":
 181                         $id = db_escape_string($_REQUEST['id']);
 182
 183                         $result = db_query($link, "SELECT link FROM ttrss_entries, ttrss_user_entries
 184                                 WHERE id = '$id' AND id = ref_id AND owner_uid = '".$_SESSION['uid']."'");
 185
 186                         if (db_num_rows($result) == 1) {
 187                                 $article_url = db_fetch_result($result, 0, 'link');
 188                                 $article_url = str_replace("\n", "", $article_url);
 189
 190                                 header("Location: $article_url");
 191                                 return;
 192
 193                         } else {
 194                                 print_error(__("Article not found."));
 195                         }
 196                 break;
 197
 198                 case "view":
 199
 200                         $id = db_escape_string($_REQUEST["id"]);
 201                         $cids = split(",", db_escape_string($_REQUEST["cids"]));
 202                         $mode = db_escape_string($_REQUEST["mode"]);
 203                         $omode = db_escape_string($_REQUEST["omode"]);
 204
 205                         // in prefetch mode we only output requested cids, main article
 206                         // just gets marked as read (it already exists in client cache)
 207
 208                         $articles = array();
 209
 210                         if ($mode == "") {
 211                                 array_push($articles, format_article($link, $id, false));
 212                         } else if ($mode == "zoom") {
 213                                 array_push($articles, format_article($link, $id, false, true, true));
 214                         } else {
 215                                 catchupArticleById($link, $id, 0);
 216                         }
 217
 218                         if (!$_SESSION["bw_limit"]) {
 219                                 foreach ($cids as $cid) {
 220                                         if ($cid) {
 221                                                 array_push($articles, format_article($link, $cid, false, false));
 222                                         }
 223                                 }
 224                         }
 225
 226                         print json_encode($articles);
 227
 228                 break; // view
 229
 230                 case "viewfeed":
 231
 232                         $timing_info = getmicrotime();
 233
 234                         $reply = array();
 235
 236                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 237
 238                         $omode = db_escape_string($_REQUEST["omode"]);
 239
 240                         $feed = db_escape_string($_REQUEST["feed"]);
 241                         $subop = db_escape_string($_REQUEST["subop"]);
 242                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 243                         $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
 244                         @$cat_view = db_escape_string($_REQUEST["cat"]);
 245                         @$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 246                         @$offset = db_escape_string($_REQUEST["skip"]);
 247                         @$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 248                         $order_by = db_escape_string($_REQUEST["order_by"]);
 249
 250                         /* Feed -5 is a special case: it is used to display auxiliary information
 251                          * when there's nothing to load - e.g. no stuff in fresh feed */
 252
 253                         if ($feed == -5) {
 254                                 print json_encode(generate_dashboard_feed($link));
 255                                 return;
 256                         }
 257
 258                         $result = false;
 259
 260                         if ($feed < -10) {
 261                                 $label_feed = -11-$feed;
 262                                 $result = db_query($link, "SELECT id FROM ttrss_labels2 WHERE
 263                                         id = '$label_feed' AND owner_uid = " . $_SESSION['uid']);
 264                         } else if (!$cat_view && $feed > 0) {
 265                                 $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE
 266                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 267                         } else if ($cat_view && $feed > 0) {
 268                                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE
 269                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 270                         }
 271
 272                         if ($result && db_num_rows($result) == 0) {
 273                                 print json_encode(generate_error_feed($link, __("Feed not found.")));
 274                                 return;
 275                         }
 276
 277                         /* Updating a label ccache means recalculating all of the caches
 278                          * so for performance reasons we don't do that here */
 279
 280                         if ($feed >= 0) {
 281                                 ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 282                         }
 283
 284                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 285                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 286                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 287
 288                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 289                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 290                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 291                         }
 292
 293                         $reply['headlines'] = array();
 294
 295                         if (!$next_unread_feed)
 296                                 $reply['headlines']['id'] = $feed;
 297                         else
 298                                 $reply['headlines']['id'] = $next_unread_feed;
 299
 300                         $reply['headlines']['is_cat'] = (bool) $cat_view;
 301
 302                         $override_order = false;
 303
 304                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
 305                                 $date_sort_field = "updated";
 306                         } else {
 307                                 $date_sort_field = "date_entered";
 308                         }
 309
 310                         switch ($order_by) {
 311                                 case "date":
 312                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 313                                                 $override_order = "$date_sort_field";
 314                                         } else {
 315                                                 $override_order = "$date_sort_field DESC";
 316                                         }
 317                                         break;
 318
 319                                 case "title":
 320                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 321                                                 $override_order = "title DESC, $date_sort_field";
 322                                         } else {
 323                                                 $override_order = "title, $date_sort_field DESC";
 324                                         }
 325                                         break;
 326
 327                                 case "score":
 328                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 329                                                 $override_order = "score, $date_sort_field";
 330                                         } else {
 331                                                 $override_order = "score DESC, $date_sort_field DESC";
 332                                         }
 333                                         break;
 334                         }
 335
 336                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);
 337
 338                         $ret = format_headlines_list($link, $feed, $subop,
 339                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 340                                 $vgroup_last_feed, $override_order);
 341
 342                         $topmost_article_ids = $ret[0];
 343                         $headlines_count = $ret[1];
 344                         $returned_feed = $ret[2];
 345                         $disable_cache = $ret[3];
 346                         $vgroup_last_feed = $ret[4];
 347
 348                         $reply['headlines']['content'] = $ret[5];
 349                         $reply['headlines']['toolbar'] = $ret[6];
 350
 351                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);
 352
 353                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 354                                         $cat_view, true);
 355
 356                         if ($headlines_unread == -1) {
 357                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 358                         }
 359
 360                         $reply['headlines-info'] = array("count" => (int) $headlines_count,
 361                                 "vgroup_last_feed" => $vgroup_last_feed,
 362                                 "unread" => (int) $headlines_unread,
 363                                 "disable_cache" => (bool) $disable_cache);
 364
 365                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 366
 367                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 368                                 $articles = array();
 369
 370                                 foreach ($topmost_article_ids as $id) {
 371                                         array_push($articles, format_article($link, $id, $feed, false));
 372                                 }
 373
 374                                 $reply['articles'] = $articles;
 375                         }
 376
 377                         if ($subop) {
 378                                 $reply['counters'] = getAllCounters($link, $omode, $feed);
 379                         }
 380
 381                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 382
 383                         $reply['runtime-info'] = make_runtime_info($link);
 384
 385                         print json_encode($reply);
 386
 387                 break; // viewfeed
 388
 389                 case "pref-feeds":
 390                         module_pref_feeds($link);
 391                 break; // pref-feeds
 392
 393                 case "pref-filters":
 394                         module_pref_filters($link);
 395                 break; // pref-filters
 396
 397                 case "pref-labels":
 398                         module_pref_labels($link);
 399                 break; // pref-labels
 400
 401                 case "pref-prefs":
 402                         module_pref_prefs($link);
 403                 break; // pref-prefs
 404
 405                 case "pref-users":
 406                         module_pref_users($link);
 407                 break; // prefs-users
 408
 409                 case "help":
 410                         module_help($link);
 411                 break; // help
 412
 413                 case "dlg":
 414                         module_popup_dialog($link);
 415                 break; // dlg
 416
 417                 case "pref-pub-items":
 418                         module_pref_pub_items($link);
 419                 break; // pref-pub-items
 420
 421                 case "globalUpdateFeeds":
 422                         // Update all feeds needing a update.
 423                         update_daemon_common($link, 0, true, true);
 424                 break; // globalUpdateFeeds
 425
 426                 case "pref-feed-browser":
 427                         module_pref_feed_browser($link);
 428                 break; // pref-feed-browser
 429
 430                 case "rss":
 431                         $feed = db_escape_string($_REQUEST["id"]);
 432                         $key = db_escape_string($_REQUEST["key"]);
 433                         $is_cat = $_REQUEST["is_cat"] != false;
 434                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 435
 436                         $search = db_escape_string($_REQUEST["q"]);
 437                         $match_on = db_escape_string($_REQUEST["m"]);
 438                         $search_mode = db_escape_string($_REQUEST["smode"]);
 439                         $view_mode = db_escape_string($_REQUEST["view-mode"]);
 440
 441                         if (SINGLE_USER_MODE) {
 442                                 authenticate_user($link, "admin", null);
 443                         }
 444
 445                         $owner_id = false;
 446
 447                         if ($key) {
 448                                 $result = db_query($link, "SELECT owner_uid FROM
 449                                         ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
 450
 451                                 if (db_num_rows($result) == 1)
 452                                         $owner_id = db_fetch_result($result, 0, "owner_uid");
 453                         }
 454
 455                         if ($owner_id) {
 456                                 $_SESSION['uid'] = $owner_id;
 457
 458                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 459                                         $search, $search_mode, $match_on, $view_mode);
 460                         } else {
 461                                 header('HTTP/1.1 403 Forbidden');
 462                         }
 463                 break; // rss
 464
 465                 case "getUnread":
 466                         $login = db_escape_string($_REQUEST["login"]);
 467                         $fresh = $_REQUEST["fresh"] == "1";
 468
 469                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 470
 471                         if (db_num_rows($result) == 1) {
 472                                 $uid = db_fetch_result($result, 0, "id");
 473
 474                                 print getGlobalUnread($link, $uid);
 475
 476                                 if ($fresh) {
 477                                         print ";";
 478                                         print getFeedArticles($link, -3, false, true, $uid);
 479                                 }
 480
 481                         } else {
 482                                 print "-1;User not found";
 483                         }
 484
 485                         $print_exec_time = false;
 486                 break; // getUnread
 487
 488                 case "digestTest":
 489                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 490                         $print_exec_time = false;
 491                 break; // digestTest
 492
 493                 case "digestSend":
 494                         send_headlines_digests($link);
 495                         $print_exec_time = false;
 496                 break; // digestSend
 497
 498                 case "loading":
 499                         print __("Loading, please wait...") . " " .
 500                                 "<img src='images/indicator_tiny.gif'>";
 501
 502                 case "getProfiles":
 503                         $login = db_escape_string($_REQUEST["login"]);
 504                         $password = db_escape_string($_REQUEST["password"]);
 505
 506                         if (authenticate_user($link, $login, $password)) {
 507                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
 508                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 509
 510                                 print "<select style='width: 100%' name='profile'>";
 511
 512                                 print "<option value='0'>" . __("Default profile") . "</option>";
 513
 514                                 while ($line = db_fetch_assoc($result)) {
 515                                         $id = $line["id"];
 516                                         $title = $line["title"];
 517
 518                                         print "<option value='$id'>$title</option>";
 519                                 }
 520
 521                                 print "</select>";
 522
 523                                 $_SESSION = array();
 524                         }
 525                 break;
 526
 527         } // Select action according to $op value.
 528
 529
 530         // We close the connection to database.
 531         db_close($link);
 532 ?>
 533
 534 <?php if ($print_exec_time) { ?>
 535 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 536 <?php } ?>