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         $update_methods = array(
 123                 0   => __("Use default"),
 124                 1   => __("Magpie"),
 125                 2   => __("SimplePie"));
 126
 127         if (ENABLE_SIMPLEPIE) {
 128                 $update_methods[0] .= ' (SimplePie)';
 129         } else {
 130                 $update_methods[0] .= ' (Magpie)';
 131         }
 132
 133         $access_level_names = array(
 134                 0 => __("User"),
 135                 10 => __("Administrator"));
 136
 137         require_once "modules/pref-prefs.php";
 138         require_once "modules/popup-dialog.php";
 139         require_once "modules/help.php";
 140         require_once "modules/pref-feeds.php";
 141         require_once "modules/pref-filters.php";
 142         require_once "modules/pref-labels.php";
 143         require_once "modules/pref-users.php";
 144         require_once "modules/pref-feed-browser.php";
 145
 146         if (!sanity_check($link)) { return; }
 147
 148         switch($op) { // Select action according to $op value.
 149                 case "rpc":
 150                         // Handle remote procedure calls.
 151                         handle_rpc_request($link);
 152                 break; // rpc
 153
 154                 case "feeds":
 155                         $tags = $_GET["tags"];
 156
 157                         $subop = $_GET["subop"];
 158
 159                         switch($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                                 break;
 164
 165                                 case "collapse":
 166                                         $cat_id = db_escape_string($_GET["cid"]);
 167
 168                                         db_query($link, "UPDATE ttrss_feed_categories SET
 169                                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 170                                                 $_SESSION["uid"]);
 171                                         return;
 172                                 break;
 173                         }
 174
 175                         outputFeedList($link, $tags);
 176                 break; // feeds
 177
 178                 case "view":
 179
 180                         $id = db_escape_string($_GET["id"]);
 181                         $feed_id = db_escape_string($_GET["feed"]);
 182                         $cids = split(",", db_escape_string($_GET["cids"]));
 183                         $mode = db_escape_string($_GET["mode"]);
 184                         $omode = db_escape_string($_GET["omode"]);
 185
 186                         print "<reply>";
 187
 188                         // in prefetch mode we only output requested cids, main article
 189                         // just gets marked as read (it already exists in client cache)
 190
 191                         if ($mode == "") {
 192                                 outputArticleXML($link, $id, $feed_id);
 193                         } else {
 194                                 catchupArticleById($link, $id, 0);
 195                         }
 196
 197                         foreach ($cids as $cid) {
 198                                 if ($cid) {
 199                                         outputArticleXML($link, $cid, $feed_id, false);
 200                                 }
 201                         }
 202
 203                         if ($mode != "prefetch_old") {
 204                                 print "<counters>";
 205                                 getAllCounters($link, $omode);
 206                                 print "</counters>";
 207                         }
 208
 209                         print "</reply>";
 210                 break; // view
 211
 212                 case "viewfeed":
 213
 214                         $print_exec_time = true;
 215                         $timing_info = getmicrotime();
 216
 217                         print "<reply>";
 218
 219                         if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 220
 221                         $omode = db_escape_string($_GET["omode"]);
 222
 223                         $feed = db_escape_string($_GET["feed"]);
 224                         $subop = db_escape_string($_GET["subop"]);
 225                         $view_mode = db_escape_string($_GET["view_mode"]);
 226                         $limit = db_escape_string($_GET["limit"]);
 227                         $cat_view = db_escape_string($_GET["cat"]);
 228                         $next_unread_feed = db_escape_string($_GET["nuf"]);
 229                         $offset = db_escape_string($_GET["skip"]);
 230
 231                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 232                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 233
 234                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 235                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 236                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 237                         }
 238
 239                         print "<headlines id=\"$feed\"><![CDATA[";
 240
 241                         $ret = outputHeadlinesList($link, $feed, $subop,
 242                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset);
 243
 244                         $topmost_article_ids = $ret[0];
 245                         $headlines_count = $ret[1];
 246                         $returned_feed = $ret[2];
 247                         $disable_cache = $ret[3];
 248
 249                         print "]]></headlines>";
 250
 251                         print "<headlines-count value=\"$headlines_count\"/>";
 252
 253                         $headlines_unread = getFeedUnread($link, $returned_feed);
 254
 255                         print "<headlines-unread value=\"$headlines_unread\"/>";
 256                         printf("<disable-cache value=\"%d\"/>", $disable_cache);
 257
 258                         if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 259
 260                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE')) {
 261                                 print "<articles>";
 262                                 foreach ($topmost_article_ids as $id) {
 263                                         outputArticleXML($link, $id, $feed, false);
 264                                 }
 265                                 print "</articles>";
 266                         }
 267
 268                         if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 269
 270                         print "<counters>";
 271                         getAllCounters($link, $omode, $feed);
 272                         print "</counters>";
 273
 274                         if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 275
 276                         print_runtime_info($link);
 277
 278                         print "</reply>";
 279                 break; // viewfeed
 280
 281                 case "pref-feeds":
 282                         module_pref_feeds($link);
 283                 break; // pref-feeds
 284
 285                 case "pref-filters":
 286                         module_pref_filters($link);
 287                 break; // pref-filters
 288
 289                 case "pref-labels":
 290                         module_pref_labels($link);
 291                 break; // pref-labels
 292
 293                 case "pref-prefs":
 294                         module_pref_prefs($link);
 295                 break; // pref-prefs
 296
 297                 case "pref-users":
 298                         module_pref_users($link);
 299                 break; // prefs-users
 300
 301                 case "help":
 302                         module_help($link);
 303                 break; // help
 304
 305                 case "dlg":
 306                         module_popup_dialog($link);
 307                 break; // dlg
 308
 309                 case "pref-pub-items":
 310                         module_pref_pub_items($link);
 311                 break; // pref-pub-items
 312
 313                 case "globalUpdateFeeds":
 314                         // update feeds of all users, may be used anonymously
 315
 316                         // Update all feeds needing a update.
 317                         update_daemon_common($link, 0, true, false);
 318
 319                         // FIXME : old feed update way. To be removed.
 320                         //$result = db_query($link, "SELECT id FROM ttrss_users");
 321
 322                         //while ($line = db_fetch_assoc($result)) {
 323                         //      $user_id = $line["id"];
 324                         //      print "<!-- updating feeds of uid $user_id -->";
 325                         //      update_all_feeds($link, false, $user_id);
 326                         //}
 327
 328                         print "<rpc-reply>
 329                                 <message msg=\"All feeds updated\"/>
 330                         </rpc-reply>";
 331                 break; // globalUpdateFeeds
 332
 333                 case "user-details":
 334
 335                         if (WEB_DEMO_MODE || $_SESSION["access_level"] < 10) {
 336                                 return;
 337                         }
 338
 339                         /*
 340                         print "<html><head>
 341                                 <title>Tiny Tiny RSS : User Details</title>
 342                                 <link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
 343                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
 344                                 </head><body>";
 345                         */
 346
 347                         $uid = sprintf("%d", $_GET["id"]);
 348
 349                         print "<div id=\"infoBoxTitle\">User details</div>";
 350
 351                         print "<div class='infoBoxContents'>";
 352
 353                         $result = db_query($link, "SELECT login,
 354                                 SUBSTRING(last_login,1,16) AS last_login,
 355                                 access_level,
 356                                 (SELECT COUNT(int_id) FROM ttrss_user_entries
 357                                         WHERE owner_uid = id) AS stored_articles,
 358                                 SUBSTRING(created,1,16) AS created
 359                                 FROM ttrss_users
 360                                 WHERE id = '$uid'");
 361
 362                         if (db_num_rows($result) == 0) {
 363                                 print "<h1>User not found</h1>";
 364                                 return;
 365                         }
 366
 367                         // print "<h1>User Details</h1>";
 368
 369                         $login = db_fetch_result($result, 0, "login");
 370
 371                         // print "<h1>$login</h1>";
 372
 373                         print "<table width='100%'>";
 374
 375                         $last_login = date(get_pref($link, 'LONG_DATE_FORMAT'),
 376                                 strtotime(db_fetch_result($result, 0, "last_login")));
 377
 378                         $created = date(get_pref($link, 'LONG_DATE_FORMAT'),
 379                                 strtotime(db_fetch_result($result, 0, "created")));
 380
 381                         $access_level = db_fetch_result($result, 0, "access_level");
 382                         $stored_articles = db_fetch_result($result, 0, "stored_articles");
 383
 384                         // print "<tr><td>Username</td><td>$login</td></tr>";
 385                         // print "<tr><td>Access level</td><td>$access_level</td></tr>";
 386                         print "<tr><td>".__('Registered')."</td><td>$created</td></tr>";
 387                         print "<tr><td>".__('Last logged in')."</td><td>$last_login</td></tr>";
 388                         print "<tr><td>".__('Stored articles')."</td><td>$stored_articles</td></tr>";
 389
 390                         $result = db_query($link, "SELECT COUNT(id) as num_feeds FROM ttrss_feeds
 391                                 WHERE owner_uid = '$uid'");
 392
 393                         $num_feeds = db_fetch_result($result, 0, "num_feeds");
 394
 395                         print "<tr><td>".__('Subscribed feeds count')."</td><td>$num_feeds</td></tr>";
 396
 397                         /*
 398                         $result = db_query($link, "SELECT
 399                                 SUM(LENGTH(content)+LENGTH(title)+LENGTH(link)+LENGTH(guid)) AS db_size
 400                                 FROM ttrss_user_entries,ttrss_entries
 401                                         WHERE owner_uid = '$uid' AND ref_id = id");
 402
 403                         $db_size = round(db_fetch_result($result, 0, "db_size") / 1024);
 404
 405                         print "<tr><td>Approx. used DB size</td><td>$db_size KBytes</td></tr>";
 406                         */
 407
 408                         print "</table>";
 409
 410                         print "<h1>".__('Subscribed feeds')."</h1>";
 411
 412                         $result = db_query($link, "SELECT id,title,site_url FROM ttrss_feeds
 413                                 WHERE owner_uid = '$uid' ORDER BY title");
 414
 415                         print "<ul class=\"userFeedList\">";
 416
 417                         $row_class = "odd";
 418
 419                         while ($line = db_fetch_assoc($result)) {
 420
 421                                 $icon_file = ICONS_URL."/".$line["id"].".ico";
 422
 423                                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 424                                         $feed_icon = "<img class=\"tinyFeedIcon\" src=\"$icon_file\">";
 425                                 } else {
 426                                         $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
 427                                 }
 428
 429                                 print "<li class=\"$row_class\">$feed_icon&nbsp;<a href=\"".$line["site_url"]."\">".$line["title"]."</a></li>";
 430
 431                                 $row_class = toggleEvenOdd($row_class);
 432
 433                         }
 434
 435                         if (db_num_rows($result) < $num_feeds) {
 436                                 // FIXME - add link to show ALL subscribed feeds here somewhere
 437                                 print "<li><img
 438                                         class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">&nbsp;...</li>";
 439                         }
 440
 441                         print "</ul>";
 442
 443                         print "</div>";
 444
 445                         print "<div align='center'>
 446                                 <input type='submit' class='button'
 447                                 onclick=\"closeInfoBox()\" value=\"Close this window\"></div>";
 448
 449                         // print "</body></html>";
 450
 451                 break; // user-details
 452
 453                 case "pref-feed-browser":
 454                         module_pref_feed_browser($link);
 455                 break; // pref-feed-browser
 456
 457                 case "publish":
 458                         $key = db_escape_string($_GET["key"]);
 459
 460                         $result = db_query($link, "SELECT login, owner_uid
 461                                 FROM ttrss_user_prefs, ttrss_users WHERE
 462                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 463                                 value = '$key' AND
 464                                 ttrss_users.id = owner_uid");
 465
 466                         if (db_num_rows($result) == 1) {
 467                                 $owner = db_fetch_result($result, 0, "owner_uid");
 468                                 $login = db_fetch_result($result, 0, "login");
 469
 470                                 generate_syndicated_feed($link, $owner, -2, false);
 471
 472                         } else {
 473                                 print "<error>User not found</error>";
 474                         }
 475                 break; // publish
 476
 477                 case "rss":
 478                         $feed = db_escape_string($_GET["id"]);
 479                         $user = db_escape_string($_GET["user"]);
 480                         $pass = db_escape_string($_GET["pass"]);
 481                         $is_cat = $_GET["is_cat"] != false;
 482
 483                         $search = db_escape_string($_GET["q"]);
 484                         $match_on = db_escape_string($_GET["m"]);
 485                         $search_mode = db_escape_string($_GET["smode"]);
 486
 487                         if (!$_SESSION["uid"] && $user && $pass) {
 488                                 authenticate_user($link, $user, $pass);
 489                         }
 490
 491                         if ($_SESSION["uid"] ||
 492                                 http_authenticate_user($link)) {
 493
 494                                         generate_syndicated_feed($link, 0, $feed, $is_cat,
 495                                                 $search, $search_mode, $match_on);
 496                         }
 497                 break; // rss
 498
 499                 case "labelFromSearch":
 500                         $search = db_escape_string($_GET["search"]);
 501                         $search_mode = db_escape_string($_GET["smode"]);
 502                         $match_on = db_escape_string($_GET["match"]);
 503                         $is_cat = db_escape_string($_GET["is_cat"]);
 504                         $title = db_escape_string($_GET["title"]);
 505                         $feed = sprintf("%d", $_GET["feed"]);
 506
 507                         $label_qparts = array();
 508
 509                         $search_expr = getSearchSql($search, $match_on);
 510
 511                         if ($is_cat) {
 512                                 if ($feed != 0) {
 513                                         $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
 514                                 } else {
 515                                         $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 516                                 }
 517                         } else {
 518                                 if ($search_mode == "all_feeds") {
 519                                         // NOOP
 520                                 } else if ($search_mode == "this_cat") {
 521
 522                                         $tmp_result = db_query($link, "SELECT cat_id
 523                                                 FROM ttrss_feeds WHERE id = '$feed'");
 524
 525                                         $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
 526
 527                                         if ($cat_id > 0) {
 528                                                 $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
 529                                         } else {
 530                                                 $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 531                                         }
 532                                 } else {
 533                                         $search_expr .= " AND ttrss_feeds.id = $feed ";
 534                                 }
 535
 536                         }
 537
 538                         $search_expr = db_escape_string($search_expr);
 539
 540                         print $search_expr;
 541
 542                         if ($title) {
 543                                 $result = db_query($link,
 544                                         "INSERT INTO ttrss_labels (sql_exp,description,owner_uid)
 545                                         VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
 546                         }
 547                 break; // labelFromSearch
 548
 549                 case "getUnread":
 550                         $login = db_escape_string($_GET["login"]);
 551
 552                         header("Content-Type: text/plain; charset=utf-8");
 553
 554                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 555
 556                         if (db_num_rows($result) == 1) {
 557                                 $uid = db_fetch_result($result, 0, "id");
 558                                 print getGlobalUnread($link, $uid);
 559                         } else {
 560                                 print "-1;User not found";
 561                         }
 562
 563                         $print_exec_time = false;
 564                 break; // getUnread
 565
 566                 case "digestTest":
 567                         header("Content-Type: text/plain");
 568                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 569                         $print_exec_time = false;
 570                 break; // digestTest
 571
 572                 case "digestSend":
 573                         header("Content-Type: text/plain");
 574                         send_headlines_digests($link);
 575                         $print_exec_time = false;
 576                 break; // digestSend
 577
 578         } // Select action according to $op value.
 579
 580         // We close the connection to database.
 581         db_close($link);
 582 ?>
 583
 584 <?php if ($print_exec_time) { ?>
 585 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 586 <?php } ?>