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                 header("Content-Type: text/html; charset=utf-8");
  69         }
  70
  71         if (!$op) {
  72                 header("Content-Type: application/xml");
  73                 print_error_xml(7); exit;
  74         }
  75
  76         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  77                         && $op != "rss" && $op != "getUnread" && $op != "publish") {
  78
  79                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  80                         print_error_xml(6); die;
  81                 } else {
  82                         print "
  83                         <html><body>
  84                                 <p>Error: Not logged in.</p>
  85                                 <script type=\"text/javascript\">
  86                                         if (parent.window != 'undefined') {
  87                                                 parent.window.location = \"tt-rss.php\";
  88                                         } else {
  89                                                 window.location = \"tt-rss.php\";
  90                                         }
  91                                 </script>
  92                         </body></html>
  93                         ";
  94                 }
  95                 exit;
  96         }
  97
  98         $purge_intervals = array(
  99                 0  => __("Use default"),
 100                 -1 => __("Never purge"),
 101                 5  => __("1 week old"),
 102                 14 => __("2 weeks old"),
 103                 31 => __("1 month old"),
 104                 60 => __("2 months old"),
 105                 90 => __("3 months old"));
 106
 107         $update_intervals = array(
 108                 0   => __("Use default"),
 109                 -1  => __("Disable updates"),
 110                 15  => __("Each 15 minutes"),
 111                 30  => __("Each 30 minutes"),
 112                 60  => __("Hourly"),
 113                 240 => __("Each 4 hours"),
 114                 720 => __("Each 12 hours"),
 115                 1440 => __("Daily"),
 116                 10080 => __("Weekly"));
 117
 118
 119         $access_level_names = array(
 120                 0 => __("User"),
 121                 10 => __("Administrator"));
 122
 123         require_once "modules/pref-prefs.php";
 124         require_once "modules/popup-dialog.php";
 125         require_once "modules/help.php";
 126         require_once "modules/pref-feeds.php";
 127         require_once "modules/pref-filters.php";
 128         require_once "modules/pref-labels.php";
 129         require_once "modules/pref-users.php";
 130         require_once "modules/pref-feed-browser.php";
 131
 132         if (!sanity_check($link)) { return; }
 133
 134         if ($op == "rpc") {
 135                 handle_rpc_request($link);
 136         }
 137
 138         if ($op == "feeds") {
 139
 140                 $tags = $_GET["tags"];
 141
 142                 $subop = $_GET["subop"];
 143
 144                 if ($subop == "catchupAll") {
 145                         db_query($link, "UPDATE ttrss_user_entries SET
 146                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 147                 }
 148
 149                 if ($subop == "collapse") {
 150                         $cat_id = db_escape_string($_GET["cid"]);
 151
 152                         db_query($link, "UPDATE ttrss_feed_categories SET
 153                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 154                                 $_SESSION["uid"]);
 155                         return;
 156                 }
 157
 158                 outputFeedList($link, $tags);
 159
 160         }
 161
 162         if ($op == "view") {
 163
 164                 $id = db_escape_string($_GET["id"]);
 165                 $feed_id = db_escape_string($_GET["feed"]);
 166                 $cids = split(",", db_escape_string($_GET["cids"]));
 167                 $mode = db_escape_string($_GET["mode"]);
 168                 $omode = db_escape_string($_GET["omode"]);
 169
 170                 print "<reply>";
 171
 172                 // in prefetch mode we only output requested cids, main article
 173                 // just gets marked as read (it already exists in client cache)
 174
 175                 if ($mode == "") {
 176                         outputArticleXML($link, $id, $feed_id);
 177                 } else {
 178                         catchupArticleById($link, $id, 0);
 179                 }
 180
 181                 foreach ($cids as $cid) {
 182                         if ($cid) {
 183                                 outputArticleXML($link, $cid, $feed_id, false);
 184                         }
 185                 }
 186
 187                 if ($mode != "prefetch_old") {
 188                         print "<counters>";
 189                         getAllCounters($link, $omode);
 190                         print "</counters>";
 191                 }
 192
 193                 print "</reply>";
 194         }
 195
 196         if ($op == "viewfeed") {
 197
 198                 $print_exec_time = true;
 199                 $timing_info = getmicrotime();
 200
 201                 print "<reply>";
 202
 203                 if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 204
 205                 $omode = db_escape_string($_GET["omode"]);
 206
 207                 $feed = db_escape_string($_GET["feed"]);
 208                 $subop = db_escape_string($_GET["subop"]);
 209                 $view_mode = db_escape_string($_GET["view_mode"]);
 210                 $limit = db_escape_string($_GET["limit"]);
 211                 $cat_view = db_escape_string($_GET["cat"]);
 212                 $next_unread_feed = db_escape_string($_GET["nuf"]);
 213                 $offset = db_escape_string($_GET["skip"]);
 214
 215                 set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 216                 set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 217
 218                 print "<headlines id=\"$feed\"><![CDATA[";
 219
 220                 $topmost_article_ids = outputHeadlinesList($link, $feed, $subop,
 221                         $view_mode, $limit, $cat_view, $next_unread_feed, $offset);
 222
 223                 print "]]></headlines>";
 224
 225                 if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 226
 227                 if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE')) {
 228                         print "<articles>";
 229                         foreach ($topmost_article_ids as $id) {
 230                                 outputArticleXML($link, $id, $feed, false);
 231                         }
 232                         print "</articles>";
 233                 }
 234
 235                 if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 236
 237                 print "<counters>";
 238                 getAllCounters($link, $omode);
 239                 print "</counters>";
 240
 241                 if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 242
 243                 print_runtime_info($link);
 244
 245                 print "</reply>";
 246         }
 247
 248         if ($op == "pref-feeds") {
 249                 module_pref_feeds($link);
 250         }
 251
 252         if ($op == "pref-filters") {
 253                 module_pref_filters($link);
 254         }
 255
 256         if ($op == "pref-labels") {
 257                 module_pref_labels($link);
 258         }
 259
 260         if ($op == "pref-prefs") {
 261                 module_pref_prefs($link);
 262         }
 263
 264         if ($op == "pref-users") {
 265                 module_pref_users($link);
 266         }
 267
 268         if ($op == "help") {
 269                 module_help($link);
 270         }
 271
 272         if ($op == "dlg") {
 273                 module_popup_dialog($link);
 274         }
 275
 276         if ($op == "pref-pub-items") {
 277                 module_pref_pub_items($link);
 278         }
 279
 280
 281         // update feeds of all users, may be used anonymously
 282         if ($op == "globalUpdateFeeds") {
 283
 284                 $result = db_query($link, "SELECT id FROM ttrss_users");
 285
 286                 while ($line = db_fetch_assoc($result)) {
 287                         $user_id = $line["id"];
 288 //                      print "<!-- updating feeds of uid $user_id -->";
 289                         update_all_feeds($link, false, $user_id);
 290                 }
 291
 292                 print "<rpc-reply>
 293                         <message msg=\"All feeds updated\"/>
 294                 </rpc-reply>";
 295
 296         }
 297
 298         if ($op == "user-details") {
 299
 300                 if (WEB_DEMO_MODE || $_SESSION["access_level"] < 10) {
 301                         return;
 302                 }
 303
 304 /*              print "<html><head>
 305                         <title>Tiny Tiny RSS : User Details</title>
 306                         <link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
 307                         <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
 308                         </head><body>"; */
 309
 310                 $uid = sprintf("%d", $_GET["id"]);
 311
 312                 print "<div id=\"infoBoxTitle\">User details</div>";
 313
 314                 print "<div class='infoBoxContents'>";
 315
 316                 $result = db_query($link, "SELECT login,
 317                         SUBSTRING(last_login,1,16) AS last_login,
 318                         access_level,
 319                         (SELECT COUNT(int_id) FROM ttrss_user_entries
 320                                 WHERE owner_uid = id) AS stored_articles
 321                         FROM ttrss_users
 322                         WHERE id = '$uid'");
 323
 324                 if (db_num_rows($result) == 0) {
 325                         print "<h1>User not found</h1>";
 326                         return;
 327                 }
 328
 329 #               print "<h1>User Details</h1>";
 330
 331                 $login = db_fetch_result($result, 0, "login");
 332
 333 #               print "<h1>$login</h1>";
 334
 335                 print "<table width='100%'>";
 336
 337                 $last_login = date(get_pref($link, 'LONG_DATE_FORMAT'),
 338                         strtotime(db_fetch_result($result, 0, "last_login")));
 339                 $access_level = db_fetch_result($result, 0, "access_level");
 340                 $stored_articles = db_fetch_result($result, 0, "stored_articles");
 341
 342 #               print "<tr><td>Username</td><td>$login</td></tr>";
 343 #               print "<tr><td>Access level</td><td>$access_level</td></tr>";
 344                 print "<tr><td>Last logged in</td><td>$last_login</td></tr>";
 345                 print "<tr><td>Stored articles</td><td>$stored_articles</td></tr>";
 346
 347                 $result = db_query($link, "SELECT COUNT(id) as num_feeds FROM ttrss_feeds
 348                         WHERE owner_uid = '$uid'");
 349
 350                 $num_feeds = db_fetch_result($result, 0, "num_feeds");
 351
 352                 print "<tr><td>Subscribed feeds count</td><td>$num_feeds</td></tr>";
 353
 354 /*              $result = db_query($link, "SELECT
 355                         SUM(LENGTH(content)+LENGTH(title)+LENGTH(link)+LENGTH(guid)) AS db_size
 356                         FROM ttrss_user_entries,ttrss_entries
 357                                 WHERE owner_uid = '$uid' AND ref_id = id");
 358
 359                 $db_size = round(db_fetch_result($result, 0, "db_size") / 1024);
 360
 361                 print "<tr><td>Approx. used DB size</td><td>$db_size KBytes</td></tr>";  */
 362
 363                 print "</table>";
 364
 365                 print "<h1>Subscribed feeds</h1>";
 366
 367                 $result = db_query($link, "SELECT id,title,site_url FROM ttrss_feeds
 368                         WHERE owner_uid = '$uid' ORDER BY title");
 369
 370                 print "<ul class=\"userFeedList\">";
 371
 372                 $row_class = "odd";
 373
 374                 while ($line = db_fetch_assoc($result)) {
 375
 376                         $icon_file = ICONS_URL."/".$line["id"].".ico";
 377
 378                         if (file_exists($icon_file) && filesize($icon_file) > 0) {
 379                                 $feed_icon = "<img class=\"tinyFeedIcon\" src=\"$icon_file\">";
 380                         } else {
 381                                 $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
 382                         }
 383
 384                         print "<li class=\"$row_class\">$feed_icon&nbsp;<a href=\"".$line["site_url"]."\">".$line["title"]."</a></li>";
 385
 386                         $row_class = toggleEvenOdd($row_class);
 387
 388                 }
 389
 390                 if (db_num_rows($result) < $num_feeds) {
 391                          // FIXME - add link to show ALL subscribed feeds here somewhere
 392                         print "<li><img
 393                                 class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">&nbsp;...</li>";
 394                 }
 395
 396                 print "</ul>";
 397
 398                 print "</div>";
 399
 400                 print "<div align='center'>
 401                         <input type='submit' class='button'
 402                         onclick=\"closeInfoBox()\" value=\"Close this window\"></div>";
 403
 404 //              print "</body></html>";
 405
 406         }
 407
 408         if ($op == "pref-feed-browser") {
 409                 module_pref_feed_browser($link);
 410         }
 411
 412         if ($op == "publish") {
 413                 $key = db_escape_string($_GET["key"]);
 414
 415                 $result = db_query($link, "SELECT login, owner_uid
 416                         FROM ttrss_user_prefs, ttrss_users WHERE
 417                         pref_name = '_PREFS_PUBLISH_KEY' AND
 418                         value = '$key' AND
 419                         ttrss_users.id = owner_uid");
 420
 421                 if (db_num_rows($result) == 1) {
 422                         $owner = db_fetch_result($result, 0, "owner_uid");
 423                         $login = db_fetch_result($result, 0, "login");
 424
 425                         generate_syndicated_feed($link, $owner, -2, false);
 426
 427                 } else {
 428                         print "<error>User not found</error>";
 429                 }
 430
 431         }
 432
 433         if ($op == "rss") {
 434                 $feed = db_escape_string($_GET["id"]);
 435                 $user = db_escape_string($_GET["user"]);
 436                 $pass = db_escape_string($_GET["pass"]);
 437                 $is_cat = $_GET["is_cat"] != false;
 438
 439                 $search = db_escape_string($_GET["q"]);
 440                 $match_on = db_escape_string($_GET["m"]);
 441                 $search_mode = db_escape_string($_GET["smode"]);
 442
 443                 if (!$_SESSION["uid"] && $user && $pass) {
 444                         authenticate_user($link, $user, $pass);
 445                 }
 446
 447                 if ($_SESSION["uid"] ||
 448                         http_authenticate_user($link)) {
 449
 450                                 generate_syndicated_feed($link, 0, $feed, $is_cat,
 451                                         $search, $search_mode, $match_on);
 452                 }
 453
 454         }
 455
 456         if ($op == "labelFromSearch") {
 457                 $search = db_escape_string($_GET["search"]);
 458                 $search_mode = db_escape_string($_GET["smode"]);
 459                 $match_on = db_escape_string($_GET["match"]);
 460                 $is_cat = db_escape_string($_GET["is_cat"]);
 461                 $title = db_escape_string($_GET["title"]);
 462                 $feed = sprintf("%d", $_GET["feed"]);
 463
 464                 $label_qparts = array();
 465
 466                 $search_expr = getSearchSql($search, $match_on);
 467
 468                 if ($is_cat) {
 469                         if ($feed != 0) {
 470                                 $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
 471                         } else {
 472                                 $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 473                         }
 474                 } else {
 475                         if ($search_mode == "all_feeds") {
 476                                 // NOOP
 477                         } else if ($search_mode == "this_cat") {
 478
 479                                 $tmp_result = db_query($link, "SELECT cat_id
 480                                         FROM ttrss_feeds WHERE id = '$feed'");
 481
 482                                 $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
 483
 484                                 if ($cat_id > 0) {
 485                                         $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
 486                                 } else {
 487                                         $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 488                                 }
 489                         } else {
 490                                 $search_expr .= " AND ttrss_feeds.id = $feed ";
 491                         }
 492
 493                 }
 494
 495                 $search_expr = db_escape_string($search_expr);
 496
 497                 print $search_expr;
 498
 499                 if ($title) {
 500                         $result = db_query($link,
 501                                 "INSERT INTO ttrss_labels (sql_exp,description,owner_uid)
 502                                 VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
 503                 }
 504         }
 505
 506         if ($op == "getUnread") {
 507                 $login = db_escape_string($_GET["login"]);
 508
 509                 header("Content-Type: text/plain; charset=utf-8");
 510
 511                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 512
 513                 if (db_num_rows($result) == 1) {
 514                         $uid = db_fetch_result($result, 0, "id");
 515                         print getGlobalUnread($link, $uid);
 516                 } else {
 517                         print "-1;User not found";
 518                 }
 519
 520                 $print_exec_time = false;
 521         }
 522
 523         if ($op == "digestTest") {
 524                 header("Content-Type: text/plain");
 525                 print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 526                 $print_exec_time = false;
 527
 528         }
 529
 530         if ($op == "digestSend") {
 531                 header("Content-Type: text/plain");
 532                 send_headlines_digests($link);
 533                 $print_exec_time = false;
 534
 535         }
 536
 537         db_close($link);
 538 ?>
 539
 540 <?php if ($print_exec_time) { ?>
 541 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 542 <?php } ?>