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 == "digestSend" || $op == "dlg" ||
  53                         $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
  54                                 header("Content-Type: application/xml; charset=utf-8");
  55
  56                 } else {
  57                 if (!$_REQUEST["noxml"]) {
  58                         header("Content-Type: text/html; charset=utf-8");
  59                 } else {
  60                         header("Content-Type: text/plain; charset=utf-8");
  61                 }
  62         }
  63
  64         if (ENABLE_GZIP_OUTPUT) {
  65                 ob_start("ob_gzhandler");
  66         }
  67
  68         if (SINGLE_USER_MODE) {
  69                 authenticate_user($link, "admin", null);
  70         }
  71
  72         /* if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  73                 && $op != "rss" && $op != "getUnread" && $op != "publish" && $op != "getProfiles") {
  74
  75                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  76                         print_error_xml(6); exit;
  77                 } else {
  78                         header("Location: tt-rss.php?return=" .
  79                                 urlencode($_SERVER['REQUEST_URI']));
  80                 }
  81                 exit;
  82         } */
  83
  84         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds" &&
  85                                 $op != "rss" && $op != "getUnread" && $op != "getProfiles") {
  86
  87                 header("Content-Type: text/plain");
  88                 print json_encode(array("error" => array("code" => 6)));
  89                 return;
  90         }
  91
  92         $purge_intervals = array(
  93                 0  => __("Use default"),
  94                 -1 => __("Never purge"),
  95                 5  => __("1 week old"),
  96                 14 => __("2 weeks old"),
  97                 31 => __("1 month old"),
  98                 60 => __("2 months old"),
  99                 90 => __("3 months old"));
 100
 101         $update_intervals = array(
 102                 0   => __("Default interval"),
 103                 -1  => __("Disable updates"),
 104                 15  => __("Each 15 minutes"),
 105                 30  => __("Each 30 minutes"),
 106                 60  => __("Hourly"),
 107                 240 => __("Each 4 hours"),
 108                 720 => __("Each 12 hours"),
 109                 1440 => __("Daily"),
 110                 10080 => __("Weekly"));
 111
 112         $update_intervals_nodefault = array(
 113                 -1  => __("Disable updates"),
 114                 15  => __("Each 15 minutes"),
 115                 30  => __("Each 30 minutes"),
 116                 60  => __("Hourly"),
 117                 240 => __("Each 4 hours"),
 118                 720 => __("Each 12 hours"),
 119                 1440 => __("Daily"),
 120                 10080 => __("Weekly"));
 121
 122         $update_methods = array(
 123                 0   => __("Default"),
 124                 1   => __("Magpie"),
 125                 2   => __("SimplePie"),
 126                 3   => __("Twitter OAuth"));
 127
 128         if (DEFAULT_UPDATE_METHOD == "1") {
 129                 $update_methods[0] .= ' (SimplePie)';
 130         } else {
 131                 $update_methods[0] .= ' (Magpie)';
 132         }
 133
 134         $access_level_names = array(
 135                 0 => __("User"),
 136                 5 => __("Power User"),
 137                 10 => __("Administrator"));
 138
 139         require_once "modules/pref-prefs.php";
 140         require_once "modules/popup-dialog.php";
 141         require_once "modules/help.php";
 142         require_once "modules/pref-feeds.php";
 143         require_once "modules/pref-filters.php";
 144         require_once "modules/pref-labels.php";
 145         require_once "modules/pref-users.php";
 146
 147         if (!sanity_check($link)) { return; }
 148
 149         switch($op) { // Select action according to $op value.
 150                 case "rpc":
 151                         // Handle remote procedure calls.
 152                         handle_rpc_request($link);
 153                 break; // rpc
 154
 155                 case "feeds":
 156                         $subop = $_REQUEST["subop"];
 157                         $root = (bool)$_REQUEST["root"];
 158
 159                         switch($subop) {
 160                                 case "catchupAll":
 161                                         db_query($link, "UPDATE ttrss_user_entries SET
 162                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 163                                         ccache_zero_all($link, $_SESSION["uid"]);
 164
 165                                 break;
 166
 167                                 case "collapse":
 168                                         $cat_id = db_escape_string($_REQUEST["cid"]);
 169                                         $mode = (int) db_escape_string($_REQUEST['mode']);
 170                                         toggle_collapse_cat($link, $cat_id, $mode);
 171                                         return;
 172                                 break;
 173                         }
 174
 175                         if (!$root) {
 176                                 print json_encode(outputFeedList($link));
 177                         } else {
 178
 179                                 $feeds = outputFeedList($link, false);
 180
 181                                 $root = array();
 182                                 $root['id'] = 'root';
 183                                 $root['name'] = __('Feeds');
 184                                 $root['items'] = $feeds['items'];
 185
 186                                 $fl = array();
 187                                 $fl['identifier'] = 'id';
 188                                 $fl['label'] = 'name';
 189                                 $fl['items'] = array($root);
 190
 191                                 print json_encode($fl);
 192                         }
 193
 194                 break; // feeds
 195
 196                 case "la":
 197                         $id = db_escape_string($_REQUEST['id']);
 198
 199                         $result = db_query($link, "SELECT link FROM ttrss_entries, ttrss_user_entries
 200                                 WHERE id = '$id' AND id = ref_id AND owner_uid = '".$_SESSION['uid']."'");
 201
 202                         if (db_num_rows($result) == 1) {
 203                                 $article_url = db_fetch_result($result, 0, 'link');
 204                                 $article_url = str_replace("\n", "", $article_url);
 205
 206                                 header("Location: $article_url");
 207                                 return;
 208
 209                         } else {
 210                                 print_error(__("Article not found."));
 211                         }
 212                 break;
 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                         // in prefetch mode we only output requested cids, main article
 222                         // just gets marked as read (it already exists in client cache)
 223
 224                         $articles = array();
 225
 226                         if ($mode == "") {
 227                                 array_push($articles, format_article($link, $id, false));
 228                         } else if ($mode == "zoom") {
 229                                 array_push($articles, format_article($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                                                 array_push($articles, format_article($link, $cid, false, false));
 238                                         }
 239                                 }
 240                         }
 241
 242                         print json_encode($articles);
 243
 244                 break; // view
 245
 246                 case "viewfeed":
 247
 248                         $timing_info = getmicrotime();
 249
 250                         $reply = array();
 251
 252                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 253
 254                         $omode = db_escape_string($_REQUEST["omode"]);
 255
 256                         $feed = db_escape_string($_REQUEST["feed"]);
 257                         $subop = db_escape_string($_REQUEST["subop"]);
 258                         $view_mode = db_escape_string($_REQUEST["view_mode"]);
 259                         $limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
 260                         @$cat_view = db_escape_string($_REQUEST["cat"]);
 261                         @$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
 262                         @$offset = db_escape_string($_REQUEST["skip"]);
 263                         @$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
 264                         $order_by = db_escape_string($_REQUEST["order_by"]);
 265
 266                         /* Feed -5 is a special case: it is used to display auxiliary information
 267                          * when there's nothing to load - e.g. no stuff in fresh feed */
 268
 269                         if ($feed == -5) {
 270                                 print json_encode(generate_dashboard_feed($link));
 271                                 return;
 272                         }
 273
 274                         $result = false;
 275
 276                         if ($feed < -10) {
 277                                 $label_feed = -11-$feed;
 278                                 $result = db_query($link, "SELECT id FROM ttrss_labels2 WHERE
 279                                         id = '$label_feed' AND owner_uid = " . $_SESSION['uid']);
 280                         } else if (!$cat_view && $feed > 0) {
 281                                 $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE
 282                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 283                         } else if ($cat_view && $feed > 0) {
 284                                 $result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE
 285                                         id = '$feed' AND owner_uid = " . $_SESSION['uid']);
 286                         }
 287
 288                         if ($result && db_num_rows($result) == 0) {
 289                                 print json_encode(generate_error_feed($link, __("Feed not found.")));
 290                                 return;
 291                         }
 292
 293                         /* Updating a label ccache means recalculating all of the caches
 294                          * so for performance reasons we don't do that here */
 295
 296                         if ($feed >= 0) {
 297                                 ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 298                         }
 299
 300                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 301                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 302                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 303
 304                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 305                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 306                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 307                         }
 308
 309                         $reply['headlines'] = array();
 310
 311                         if (!$next_unread_feed)
 312                                 $reply['headlines']['id'] = $feed;
 313                         else
 314                                 $reply['headlines']['id'] = $next_unread_feed;
 315
 316                         $reply['headlines']['is_cat'] = (bool) $cat_view;
 317
 318                         $override_order = false;
 319
 320                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
 321                                 $date_sort_field = "updated";
 322                         } else {
 323                                 $date_sort_field = "date_entered";
 324                         }
 325
 326                         switch ($order_by) {
 327                                 case "date":
 328                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 329                                                 $override_order = "$date_sort_field";
 330                                         } else {
 331                                                 $override_order = "$date_sort_field DESC";
 332                                         }
 333                                         break;
 334
 335                                 case "title":
 336                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 337                                                 $override_order = "title DESC, $date_sort_field";
 338                                         } else {
 339                                                 $override_order = "title, $date_sort_field DESC";
 340                                         }
 341                                         break;
 342
 343                                 case "score":
 344                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 345                                                 $override_order = "score, $date_sort_field";
 346                                         } else {
 347                                                 $override_order = "score DESC, $date_sort_field DESC";
 348                                         }
 349                                         break;
 350                         }
 351
 352                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);
 353
 354                         $ret = format_headlines_list($link, $feed, $subop,
 355                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 356                                 $vgroup_last_feed, $override_order);
 357
 358                         $topmost_article_ids = $ret[0];
 359                         $headlines_count = $ret[1];
 360                         $returned_feed = $ret[2];
 361                         $disable_cache = $ret[3];
 362                         $vgroup_last_feed = $ret[4];
 363
 364                         $reply['headlines']['content'] = $ret[5];
 365                         $reply['headlines']['toolbar'] = $ret[6];
 366
 367                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);
 368
 369                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 370                                         $cat_view, true);
 371
 372                         if ($headlines_unread == -1) {
 373                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 374                         }
 375
 376                         $reply['headlines-info'] = array("count" => (int) $headlines_count,
 377                                 "vgroup_last_feed" => $vgroup_last_feed,
 378                                 "unread" => (int) $headlines_unread,
 379                                 "disable_cache" => (bool) $disable_cache);
 380
 381                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 382
 383                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 384                                 $articles = array();
 385
 386                                 foreach ($topmost_article_ids as $id) {
 387                                         array_push($articles, format_article($link, $id, $feed, false));
 388                                 }
 389
 390                                 $reply['articles'] = $articles;
 391                         }
 392
 393                         if ($subop) {
 394                                 $reply['counters'] = getAllCounters($link, $omode, $feed);
 395                         }
 396
 397                         if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 398
 399                         $reply['runtime-info'] = make_runtime_info($link);
 400
 401                         print json_encode($reply);
 402
 403                 break; // viewfeed
 404
 405                 case "pref-feeds":
 406                         module_pref_feeds($link);
 407                 break; // pref-feeds
 408
 409                 case "pref-filters":
 410                         module_pref_filters($link);
 411                 break; // pref-filters
 412
 413                 case "pref-labels":
 414                         module_pref_labels($link);
 415                 break; // pref-labels
 416
 417                 case "pref-prefs":
 418                         module_pref_prefs($link);
 419                 break; // pref-prefs
 420
 421                 case "pref-users":
 422                         module_pref_users($link);
 423                 break; // prefs-users
 424
 425                 case "help":
 426                         module_help($link);
 427                 break; // help
 428
 429                 case "dlg":
 430                         module_popup_dialog($link);
 431                 break; // dlg
 432
 433                 case "pref-pub-items":
 434                         module_pref_pub_items($link);
 435                 break; // pref-pub-items
 436
 437                 case "globalUpdateFeeds":
 438                         // update feeds of all users, may be used anonymously
 439
 440                         print "<!--";
 441                         // Update all feeds needing a update.
 442                         update_daemon_common($link, 0, true, true);
 443                         print " -->";
 444
 445                         print "<rpc-reply>
 446                                 <message msg=\"All feeds updated\"/>
 447                         </rpc-reply>";
 448                 break; // globalUpdateFeeds
 449
 450                 case "pref-feed-browser":
 451                         module_pref_feed_browser($link);
 452                 break; // pref-feed-browser
 453
 454                 case "rss":
 455                         $feed = db_escape_string($_REQUEST["id"]);
 456                         $key = db_escape_string($_REQUEST["key"]);
 457                         $is_cat = $_REQUEST["is_cat"] != false;
 458                         $limit = (int)db_escape_string($_REQUEST["limit"]);
 459
 460                         $search = db_escape_string($_REQUEST["q"]);
 461                         $match_on = db_escape_string($_REQUEST["m"]);
 462                         $search_mode = db_escape_string($_REQUEST["smode"]);
 463                         $view_mode = db_escape_string($_REQUEST["view-mode"]);
 464
 465                         if (SINGLE_USER_MODE) {
 466                                 authenticate_user($link, "admin", null);
 467                         }
 468
 469                         $owner_id = false;
 470
 471                         if ($key) {
 472                                 $result = db_query($link, "SELECT owner_uid FROM
 473                                         ttrss_access_keys WHERE access_key = '$key' AND feed_id = '$feed'");
 474
 475                                 if (db_num_rows($result) == 1)
 476                                         $owner_id = db_fetch_result($result, 0, "owner_uid");
 477                         }
 478
 479                         if ($owner_id) {
 480                                 $_SESSION['uid'] = $owner_id;
 481
 482                                 generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 483                                         $search, $search_mode, $match_on, $view_mode);
 484                         } else {
 485                                 header('HTTP/1.1 403 Forbidden');
 486                         }
 487                 break; // rss
 488
 489                 case "getUnread":
 490                         $login = db_escape_string($_REQUEST["login"]);
 491                         $fresh = $_REQUEST["fresh"] == "1";
 492
 493                         header("Content-Type: text/plain; charset=utf-8");
 494
 495                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 496
 497                         if (db_num_rows($result) == 1) {
 498                                 $uid = db_fetch_result($result, 0, "id");
 499
 500                                 print getGlobalUnread($link, $uid);
 501
 502                                 if ($fresh) {
 503                                         print ";";
 504                                         print getFeedArticles($link, -3, false, true, $uid);
 505                                 }
 506
 507                         } else {
 508                                 print "-1;User not found";
 509                         }
 510
 511                         $print_exec_time = false;
 512                 break; // getUnread
 513
 514                 case "digestTest":
 515                         header("Content-Type: text/plain");
 516                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 517                         $print_exec_time = false;
 518                 break; // digestTest
 519
 520                 case "digestSend":
 521                         header("Content-Type: text/plain");
 522                         send_headlines_digests($link);
 523                         $print_exec_time = false;
 524                 break; // digestSend
 525
 526                 case "loading":
 527                         print __("Loading, please wait...") . " " .
 528                                 "<img src='images/indicator_tiny.gif'>";
 529
 530                 case "getProfiles":
 531                         $login = db_escape_string($_REQUEST["login"]);
 532                         $password = db_escape_string($_REQUEST["password"]);
 533
 534                         if (authenticate_user($link, $login, $password)) {
 535                                 $result = db_query($link, "SELECT * FROM ttrss_settings_profiles
 536                                         WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
 537
 538                                 print "<select style='width: 100%' name='profile'>";
 539
 540                                 print "<option value='0'>" . __("Default profile") . "</option>";
 541
 542                                 while ($line = db_fetch_assoc($result)) {
 543                                         $id = $line["id"];
 544                                         $title = $line["title"];
 545
 546                                         print "<option value='$id'>$title</option>";
 547                                 }
 548
 549                                 print "</select>";
 550
 551                                 $_SESSION = array();
 552                         }
 553                 break;
 554
 555         } // Select action according to $op value.
 556
 557
 558         // We close the connection to database.
 559         db_close($link);
 560 ?>
 561
 562 <?php if ($print_exec_time) { ?>
 563 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 564 <?php } ?>