backend.php

   1 <?php
   2         error_reporting(E_ERROR | E_WARNING | E_PARSE);
   3
   4         /* remove ill effects of magic quotes */
   5
   6         if (get_magic_quotes_gpc()) {
   7                 $_GET = array_map('stripslashes', $_GET);
   8                 $_POST = array_map('stripslashes', $_POST);
   9                 $_REQUEST = array_map('stripslashes', $_REQUEST);
  10                 $_COOKIE = array_map('stripslashes', $_COOKIE);
  11         }
  12
  13         require_once "sessions.php";
  14         require_once "modules/backend-rpc.php";
  15
  16 /*      if ($_GET["debug"]) {
  17                 define('DEFAULT_ERROR_LEVEL', E_ALL);
  18         } else {
  19                 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
  20         }
  21
  22         error_reporting(DEFAULT_ERROR_LEVEL); */
  23
  24         require_once "sanity_check.php";
  25         require_once "config.php";
  26
  27         require_once "db.php";
  28         require_once "db-prefs.php";
  29         require_once "functions.php";
  30
  31         no_cache_incantation();
  32
  33         if (ENABLE_TRANSLATIONS == true) {
  34                 startup_gettext();
  35         }
  36
  37         $script_started = getmicrotime();
  38
  39         $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  40
  41         if (!$link) {
  42                 if (DB_TYPE == "mysql") {
  43                         print mysql_error();
  44                 }
  45                 // PG seems to display its own errors just fine by default.
  46                 return;
  47         }
  48
  49         if (DB_TYPE == "pgsql") {
  50                 pg_query("set client_encoding = 'UTF-8'");
  51                 pg_set_client_encoding("UNICODE");
  52         } else {
  53                 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
  54                         db_query($link, "SET NAMES " . MYSQL_CHARSET);
  55                         db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
  56                 }
  57         }
  58
  59         $op = $_REQUEST["op"];
  60
  61         $print_exec_time = false;
  62
  63         if ((!$op || $op == "rpc" || $op == "rss" || $op == "view" ||
  64                         $op == "digestSend" || $op == "viewfeed" || $op == "publish" ||
  65                         $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
  66                 header("Content-Type: application/xml; charset=utf-8");
  67                 } else {
  68                 if (!$_REQUEST["noxml"]) {
  69                         header("Content-Type: text/html; charset=utf-8");
  70                 } else {
  71                         header("Content-Type: text/plain; charset=utf-8");
  72                 }
  73         }
  74
  75         if (!$op) {
  76                 header("Content-Type: application/xml");
  77                 print_error_xml(7); exit;
  78         }
  79
  80         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  81                         && $op != "rss" && $op != "getUnread" && $op != "publish") {
  82
  83                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  84                         print_error_xml(6); die;
  85                 } else {
  86                         print "
  87                         <html><body>
  88                                 <p>Error: Not logged in.</p>
  89                                 <script type=\"text/javascript\">
  90                                         if (parent.window != 'undefined') {
  91                                                 parent.window.location = \"tt-rss.php\";
  92                                         } else {
  93                                                 window.location = \"tt-rss.php\";
  94                                         }
  95                                 </script>
  96                         </body></html>
  97                         ";
  98                 }
  99                 exit;
 100         }
 101
 102         $purge_intervals = array(
 103                 0  => __("Use default"),
 104                 -1 => __("Never purge"),
 105                 5  => __("1 week old"),
 106                 14 => __("2 weeks old"),
 107                 31 => __("1 month old"),
 108                 60 => __("2 months old"),
 109                 90 => __("3 months old"));
 110
 111         $update_intervals = array(
 112                 0   => __("Use default"),
 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
 123         $access_level_names = array(
 124                 0 => __("User"),
 125                 10 => __("Administrator"));
 126
 127         require_once "modules/pref-prefs.php";
 128         require_once "modules/popup-dialog.php";
 129         require_once "modules/help.php";
 130         require_once "modules/pref-feeds.php";
 131         require_once "modules/pref-filters.php";
 132         require_once "modules/pref-labels.php";
 133         require_once "modules/pref-users.php";
 134         require_once "modules/pref-feed-browser.php";
 135
 136         if (!sanity_check($link)) { return; }
 137
 138         if ($op == "rpc") {
 139                 handle_rpc_request($link);
 140         }
 141
 142         if ($op == "feeds") {
 143
 144                 $tags = $_GET["tags"];
 145
 146                 $subop = $_GET["subop"];
 147
 148                 if ($subop == "catchupAll") {
 149                         db_query($link, "UPDATE ttrss_user_entries SET
 150                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 151                 }
 152
 153                 if ($subop == "collapse") {
 154                         $cat_id = db_escape_string($_GET["cid"]);
 155
 156                         db_query($link, "UPDATE ttrss_feed_categories SET
 157                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 158                                 $_SESSION["uid"]);
 159                         return;
 160                 }
 161
 162                 outputFeedList($link, $tags);
 163
 164         }
 165
 166         if ($op == "view") {
 167
 168                 $id = db_escape_string($_GET["id"]);
 169                 $feed_id = db_escape_string($_GET["feed"]);
 170                 $cids = split(",", db_escape_string($_GET["cids"]));
 171                 $mode = db_escape_string($_GET["mode"]);
 172                 $omode = db_escape_string($_GET["omode"]);
 173
 174                 print "<reply>";
 175
 176                 // in prefetch mode we only output requested cids, main article
 177                 // just gets marked as read (it already exists in client cache)
 178
 179                 if ($mode == "") {
 180                         outputArticleXML($link, $id, $feed_id);
 181                 } else {
 182                         catchupArticleById($link, $id, 0);
 183                 }
 184
 185                 foreach ($cids as $cid) {
 186                         if ($cid) {
 187                                 outputArticleXML($link, $cid, $feed_id, false);
 188                         }
 189                 }
 190
 191                 if ($mode != "prefetch_old") {
 192                         print "<counters>";
 193                         getAllCounters($link, $omode);
 194                         print "</counters>";
 195                 }
 196
 197                 print "</reply>";
 198         }
 199
 200         if ($op == "viewfeed") {
 201
 202                 $print_exec_time = true;
 203                 $timing_info = getmicrotime();
 204
 205                 print "<reply>";
 206
 207                 if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 208
 209                 $omode = db_escape_string($_GET["omode"]);
 210
 211                 $feed = db_escape_string($_GET["feed"]);
 212                 $subop = db_escape_string($_GET["subop"]);
 213                 $view_mode = db_escape_string($_GET["view_mode"]);
 214                 $limit = db_escape_string($_GET["limit"]);
 215                 $cat_view = db_escape_string($_GET["cat"]);
 216                 $next_unread_feed = db_escape_string($_GET["nuf"]);
 217                 $offset = db_escape_string($_GET["skip"]);
 218
 219                 set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 220                 set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 221
 222                 print "<headlines id=\"$feed\"><![CDATA[";
 223
 224                 $ret = outputHeadlinesList($link, $feed, $subop,
 225                         $view_mode, $limit, $cat_view, $next_unread_feed, $offset);
 226
 227                 $topmost_article_ids = $ret[0];
 228                 $headlines_count = $ret[1];
 229
 230                 print "]]></headlines>";
 231
 232                 print "<headlines-count value=\"$headlines_count\"/>";
 233
 234                 if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 235
 236                 if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE')) {
 237                         print "<articles>";
 238                         foreach ($topmost_article_ids as $id) {
 239                                 outputArticleXML($link, $id, $feed, false);
 240                         }
 241                         print "</articles>";
 242                 }
 243
 244                 if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 245
 246                 print "<counters>";
 247                 getAllCounters($link, $omode);
 248                 print "</counters>";
 249
 250                 if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 251
 252                 print_runtime_info($link);
 253
 254                 print "</reply>";
 255         }
 256
 257         if ($op == "pref-feeds") {
 258                 module_pref_feeds($link);
 259         }
 260
 261         if ($op == "pref-filters") {
 262                 module_pref_filters($link);
 263         }
 264
 265         if ($op == "pref-labels") {
 266                 module_pref_labels($link);
 267         }
 268
 269         if ($op == "pref-prefs") {
 270                 module_pref_prefs($link);
 271         }
 272
 273         if ($op == "pref-users") {
 274                 module_pref_users($link);
 275         }
 276
 277         if ($op == "help") {
 278                 module_help($link);
 279         }
 280
 281         if ($op == "dlg") {
 282                 module_popup_dialog($link);
 283         }
 284
 285         if ($op == "pref-pub-items") {
 286                 module_pref_pub_items($link);
 287         }
 288
 289
 290         // update feeds of all users, may be used anonymously
 291         if ($op == "globalUpdateFeeds") {
 292
 293                 $result = db_query($link, "SELECT id FROM ttrss_users");
 294
 295                 while ($line = db_fetch_assoc($result)) {
 296                         $user_id = $line["id"];
 297 //                      print "<!-- updating feeds of uid $user_id -->";
 298                         update_all_feeds($link, false, $user_id);
 299                 }
 300
 301                 print "<rpc-reply>
 302                         <message msg=\"All feeds updated\"/>
 303                 </rpc-reply>";
 304
 305         }
 306
 307         if ($op == "user-details") {
 308
 309                 if (WEB_DEMO_MODE || $_SESSION["access_level"] < 10) {
 310                         return;
 311                 }
 312
 313 /*              print "<html><head>
 314                         <title>Tiny Tiny RSS : User Details</title>
 315                         <link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
 316                         <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
 317                         </head><body>"; */
 318
 319                 $uid = sprintf("%d", $_GET["id"]);
 320
 321                 print "<div id=\"infoBoxTitle\">User details</div>";
 322
 323                 print "<div class='infoBoxContents'>";
 324
 325                 $result = db_query($link, "SELECT login,
 326                         SUBSTRING(last_login,1,16) AS last_login,
 327                         access_level,
 328                         (SELECT COUNT(int_id) FROM ttrss_user_entries
 329                                 WHERE owner_uid = id) AS stored_articles
 330                         FROM ttrss_users
 331                         WHERE id = '$uid'");
 332
 333                 if (db_num_rows($result) == 0) {
 334                         print "<h1>User not found</h1>";
 335                         return;
 336                 }
 337
 338 #               print "<h1>User Details</h1>";
 339
 340                 $login = db_fetch_result($result, 0, "login");
 341
 342 #               print "<h1>$login</h1>";
 343
 344                 print "<table width='100%'>";
 345
 346                 $last_login = date(get_pref($link, 'LONG_DATE_FORMAT'),
 347                         strtotime(db_fetch_result($result, 0, "last_login")));
 348                 $access_level = db_fetch_result($result, 0, "access_level");
 349                 $stored_articles = db_fetch_result($result, 0, "stored_articles");
 350
 351 #               print "<tr><td>Username</td><td>$login</td></tr>";
 352 #               print "<tr><td>Access level</td><td>$access_level</td></tr>";
 353                 print "<tr><td>Last logged in</td><td>$last_login</td></tr>";
 354                 print "<tr><td>Stored articles</td><td>$stored_articles</td></tr>";
 355
 356                 $result = db_query($link, "SELECT COUNT(id) as num_feeds FROM ttrss_feeds
 357                         WHERE owner_uid = '$uid'");
 358
 359                 $num_feeds = db_fetch_result($result, 0, "num_feeds");
 360
 361                 print "<tr><td>Subscribed feeds count</td><td>$num_feeds</td></tr>";
 362
 363 /*              $result = db_query($link, "SELECT
 364                         SUM(LENGTH(content)+LENGTH(title)+LENGTH(link)+LENGTH(guid)) AS db_size
 365                         FROM ttrss_user_entries,ttrss_entries
 366                                 WHERE owner_uid = '$uid' AND ref_id = id");
 367
 368                 $db_size = round(db_fetch_result($result, 0, "db_size") / 1024);
 369
 370                 print "<tr><td>Approx. used DB size</td><td>$db_size KBytes</td></tr>";  */
 371
 372                 print "</table>";
 373
 374                 print "<h1>Subscribed feeds</h1>";
 375
 376                 $result = db_query($link, "SELECT id,title,site_url FROM ttrss_feeds
 377                         WHERE owner_uid = '$uid' ORDER BY title");
 378
 379                 print "<ul class=\"userFeedList\">";
 380
 381                 $row_class = "odd";
 382
 383                 while ($line = db_fetch_assoc($result)) {
 384
 385                         $icon_file = ICONS_URL."/".$line["id"].".ico";
 386
 387                         if (file_exists($icon_file) && filesize($icon_file) > 0) {
 388                                 $feed_icon = "<img class=\"tinyFeedIcon\" src=\"$icon_file\">";
 389                         } else {
 390                                 $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
 391                         }
 392
 393                         print "<li class=\"$row_class\">$feed_icon&nbsp;<a href=\"".$line["site_url"]."\">".$line["title"]."</a></li>";
 394
 395                         $row_class = toggleEvenOdd($row_class);
 396
 397                 }
 398
 399                 if (db_num_rows($result) < $num_feeds) {
 400                          // FIXME - add link to show ALL subscribed feeds here somewhere
 401                         print "<li><img
 402                                 class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">&nbsp;...</li>";
 403                 }
 404
 405                 print "</ul>";
 406
 407                 print "</div>";
 408
 409                 print "<div align='center'>
 410                         <input type='submit' class='button'
 411                         onclick=\"closeInfoBox()\" value=\"Close this window\"></div>";
 412
 413 //              print "</body></html>";
 414
 415         }
 416
 417         if ($op == "pref-feed-browser") {
 418                 module_pref_feed_browser($link);
 419         }
 420
 421         if ($op == "publish") {
 422                 $key = db_escape_string($_GET["key"]);
 423
 424                 $result = db_query($link, "SELECT login, owner_uid
 425                         FROM ttrss_user_prefs, ttrss_users WHERE
 426                         pref_name = '_PREFS_PUBLISH_KEY' AND
 427                         value = '$key' AND
 428                         ttrss_users.id = owner_uid");
 429
 430                 if (db_num_rows($result) == 1) {
 431                         $owner = db_fetch_result($result, 0, "owner_uid");
 432                         $login = db_fetch_result($result, 0, "login");
 433
 434                         generate_syndicated_feed($link, $owner, -2, false);
 435
 436                 } else {
 437                         print "<error>User not found</error>";
 438                 }
 439
 440         }
 441
 442         if ($op == "rss") {
 443                 $feed = db_escape_string($_GET["id"]);
 444                 $user = db_escape_string($_GET["user"]);
 445                 $pass = db_escape_string($_GET["pass"]);
 446                 $is_cat = $_GET["is_cat"] != false;
 447
 448                 $search = db_escape_string($_GET["q"]);
 449                 $match_on = db_escape_string($_GET["m"]);
 450                 $search_mode = db_escape_string($_GET["smode"]);
 451
 452                 if (!$_SESSION["uid"] && $user && $pass) {
 453                         authenticate_user($link, $user, $pass);
 454                 }
 455
 456                 if ($_SESSION["uid"] ||
 457                         http_authenticate_user($link)) {
 458
 459                                 generate_syndicated_feed($link, 0, $feed, $is_cat,
 460                                         $search, $search_mode, $match_on);
 461                 }
 462
 463         }
 464
 465         if ($op == "labelFromSearch") {
 466                 $search = db_escape_string($_GET["search"]);
 467                 $search_mode = db_escape_string($_GET["smode"]);
 468                 $match_on = db_escape_string($_GET["match"]);
 469                 $is_cat = db_escape_string($_GET["is_cat"]);
 470                 $title = db_escape_string($_GET["title"]);
 471                 $feed = sprintf("%d", $_GET["feed"]);
 472
 473                 $label_qparts = array();
 474
 475                 $search_expr = getSearchSql($search, $match_on);
 476
 477                 if ($is_cat) {
 478                         if ($feed != 0) {
 479                                 $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
 480                         } else {
 481                                 $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 482                         }
 483                 } else {
 484                         if ($search_mode == "all_feeds") {
 485                                 // NOOP
 486                         } else if ($search_mode == "this_cat") {
 487
 488                                 $tmp_result = db_query($link, "SELECT cat_id
 489                                         FROM ttrss_feeds WHERE id = '$feed'");
 490
 491                                 $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
 492
 493                                 if ($cat_id > 0) {
 494                                         $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
 495                                 } else {
 496                                         $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 497                                 }
 498                         } else {
 499                                 $search_expr .= " AND ttrss_feeds.id = $feed ";
 500                         }
 501
 502                 }
 503
 504                 $search_expr = db_escape_string($search_expr);
 505
 506                 print $search_expr;
 507
 508                 if ($title) {
 509                         $result = db_query($link,
 510                                 "INSERT INTO ttrss_labels (sql_exp,description,owner_uid)
 511                                 VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
 512                 }
 513         }
 514
 515         if ($op == "getUnread") {
 516                 $login = db_escape_string($_GET["login"]);
 517
 518                 header("Content-Type: text/plain; charset=utf-8");
 519
 520                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 521
 522                 if (db_num_rows($result) == 1) {
 523                         $uid = db_fetch_result($result, 0, "id");
 524                         print getGlobalUnread($link, $uid);
 525                 } else {
 526                         print "-1;User not found";
 527                 }
 528
 529                 $print_exec_time = false;
 530         }
 531
 532         if ($op == "digestTest") {
 533                 header("Content-Type: text/plain");
 534                 print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 535                 $print_exec_time = false;
 536
 537         }
 538
 539         if ($op == "digestSend") {
 540                 header("Content-Type: text/plain");
 541                 send_headlines_digests($link);
 542                 $print_exec_time = false;
 543
 544         }
 545
 546         db_close($link);
 547 ?>
 548
 549 <?php if ($print_exec_time) { ?>
 550 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 551 <?php } ?>