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         if ($op == "rpc") {
 149                 handle_rpc_request($link);
 150         }
 151
 152         if ($op == "feeds") {
 153
 154                 $tags = $_GET["tags"];
 155
 156                 $subop = $_GET["subop"];
 157
 158                 if ($subop == "catchupAll") {
 159                         db_query($link, "UPDATE ttrss_user_entries SET
 160                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 161                 }
 162
 163                 if ($subop == "collapse") {
 164                         $cat_id = db_escape_string($_GET["cid"]);
 165
 166                         db_query($link, "UPDATE ttrss_feed_categories SET
 167                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 168                                 $_SESSION["uid"]);
 169                         return;
 170                 }
 171
 172                 outputFeedList($link, $tags);
 173
 174         }
 175
 176         if ($op == "view") {
 177
 178                 $id = db_escape_string($_GET["id"]);
 179                 $feed_id = db_escape_string($_GET["feed"]);
 180                 $cids = split(",", db_escape_string($_GET["cids"]));
 181                 $mode = db_escape_string($_GET["mode"]);
 182                 $omode = db_escape_string($_GET["omode"]);
 183
 184                 print "<reply>";
 185
 186                 // in prefetch mode we only output requested cids, main article
 187                 // just gets marked as read (it already exists in client cache)
 188
 189                 if ($mode == "") {
 190                         outputArticleXML($link, $id, $feed_id);
 191                 } else {
 192                         catchupArticleById($link, $id, 0);
 193                 }
 194
 195                 foreach ($cids as $cid) {
 196                         if ($cid) {
 197                                 outputArticleXML($link, $cid, $feed_id, false);
 198                         }
 199                 }
 200
 201                 if ($mode != "prefetch_old") {
 202                         print "<counters>";
 203                         getAllCounters($link, $omode);
 204                         print "</counters>";
 205                 }
 206
 207                 print "</reply>";
 208         }
 209
 210         if ($op == "viewfeed") {
 211
 212                 $print_exec_time = true;
 213                 $timing_info = getmicrotime();
 214
 215                 print "<reply>";
 216
 217                 if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 218
 219                 $omode = db_escape_string($_GET["omode"]);
 220
 221                 $feed = db_escape_string($_GET["feed"]);
 222                 $subop = db_escape_string($_GET["subop"]);
 223                 $view_mode = db_escape_string($_GET["view_mode"]);
 224                 $limit = db_escape_string($_GET["limit"]);
 225                 $cat_view = db_escape_string($_GET["cat"]);
 226                 $next_unread_feed = db_escape_string($_GET["nuf"]);
 227                 $offset = db_escape_string($_GET["skip"]);
 228
 229                 set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 230                 set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 231
 232                 if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 233                         db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 234                                 WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 235                 }
 236
 237                 print "<headlines id=\"$feed\"><![CDATA[";
 238
 239                 $ret = outputHeadlinesList($link, $feed, $subop,
 240                         $view_mode, $limit, $cat_view, $next_unread_feed, $offset);
 241
 242                 $topmost_article_ids = $ret[0];
 243                 $headlines_count = $ret[1];
 244                 $returned_feed = $ret[2];
 245                 $disable_cache = $ret[3];
 246
 247                 print "]]></headlines>";
 248
 249                 print "<headlines-count value=\"$headlines_count\"/>";
 250
 251                 $headlines_unread = getFeedUnread($link, $returned_feed);
 252
 253                 print "<headlines-unread value=\"$headlines_unread\"/>";
 254                 printf("<disable-cache value=\"%d\"/>", $disable_cache);
 255
 256                 if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 257
 258                 if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE')) {
 259                         print "<articles>";
 260                         foreach ($topmost_article_ids as $id) {
 261                                 outputArticleXML($link, $id, $feed, false);
 262                         }
 263                         print "</articles>";
 264                 }
 265
 266                 if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 267
 268                 print "<counters>";
 269                 getAllCounters($link, $omode, $feed);
 270                 print "</counters>";
 271
 272                 if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 273
 274                 print_runtime_info($link);
 275
 276                 print "</reply>";
 277         }
 278
 279         if ($op == "pref-feeds") {
 280                 module_pref_feeds($link);
 281         }
 282
 283         if ($op == "pref-filters") {
 284                 module_pref_filters($link);
 285         }
 286
 287         if ($op == "pref-labels") {
 288                 module_pref_labels($link);
 289         }
 290
 291         if ($op == "pref-prefs") {
 292                 module_pref_prefs($link);
 293         }
 294
 295         if ($op == "pref-users") {
 296                 module_pref_users($link);
 297         }
 298
 299         if ($op == "help") {
 300                 module_help($link);
 301         }
 302
 303         if ($op == "dlg") {
 304                 module_popup_dialog($link);
 305         }
 306
 307         if ($op == "pref-pub-items") {
 308                 module_pref_pub_items($link);
 309         }
 310
 311
 312         // update feeds of all users, may be used anonymously
 313         if ($op == "globalUpdateFeeds") {
 314
 315                 $result = db_query($link, "SELECT id FROM ttrss_users");
 316
 317                 while ($line = db_fetch_assoc($result)) {
 318                         $user_id = $line["id"];
 319 //                      print "<!-- updating feeds of uid $user_id -->";
 320                         update_all_feeds($link, false, $user_id);
 321                 }
 322
 323                 print "<rpc-reply>
 324                         <message msg=\"All feeds updated\"/>
 325                 </rpc-reply>";
 326
 327         }
 328
 329         if ($op == "user-details") {
 330
 331                 if (WEB_DEMO_MODE || $_SESSION["access_level"] < 10) {
 332                         return;
 333                 }
 334
 335 /*              print "<html><head>
 336                         <title>Tiny Tiny RSS : User Details</title>
 337                         <link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
 338                         <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
 339                         </head><body>"; */
 340
 341                 $uid = sprintf("%d", $_GET["id"]);
 342
 343                 print "<div id=\"infoBoxTitle\">User details</div>";
 344
 345                 print "<div class='infoBoxContents'>";
 346
 347                 $result = db_query($link, "SELECT login,
 348                         SUBSTRING(last_login,1,16) AS last_login,
 349                         access_level,
 350                         (SELECT COUNT(int_id) FROM ttrss_user_entries
 351                                 WHERE owner_uid = id) AS stored_articles,
 352                         SUBSTRING(created,1,16) AS created
 353                         FROM ttrss_users
 354                         WHERE id = '$uid'");
 355
 356                 if (db_num_rows($result) == 0) {
 357                         print "<h1>User not found</h1>";
 358                         return;
 359                 }
 360
 361 #               print "<h1>User Details</h1>";
 362
 363                 $login = db_fetch_result($result, 0, "login");
 364
 365 #               print "<h1>$login</h1>";
 366
 367                 print "<table width='100%'>";
 368
 369                 $last_login = date(get_pref($link, 'LONG_DATE_FORMAT'),
 370                         strtotime(db_fetch_result($result, 0, "last_login")));
 371
 372                 $created = date(get_pref($link, 'LONG_DATE_FORMAT'),
 373                         strtotime(db_fetch_result($result, 0, "created")));
 374
 375                 $access_level = db_fetch_result($result, 0, "access_level");
 376                 $stored_articles = db_fetch_result($result, 0, "stored_articles");
 377
 378 #               print "<tr><td>Username</td><td>$login</td></tr>";
 379 #               print "<tr><td>Access level</td><td>$access_level</td></tr>";
 380                 print "<tr><td>".__('Registered')."</td><td>$created</td></tr>";
 381                 print "<tr><td>".__('Last logged in')."</td><td>$last_login</td></tr>";
 382                 print "<tr><td>".__('Stored articles')."</td><td>$stored_articles</td></tr>";
 383
 384                 $result = db_query($link, "SELECT COUNT(id) as num_feeds FROM ttrss_feeds
 385                         WHERE owner_uid = '$uid'");
 386
 387                 $num_feeds = db_fetch_result($result, 0, "num_feeds");
 388
 389                 print "<tr><td>".__('Subscribed feeds count')."</td><td>$num_feeds</td></tr>";
 390
 391 /*              $result = db_query($link, "SELECT
 392                         SUM(LENGTH(content)+LENGTH(title)+LENGTH(link)+LENGTH(guid)) AS db_size
 393                         FROM ttrss_user_entries,ttrss_entries
 394                                 WHERE owner_uid = '$uid' AND ref_id = id");
 395
 396                 $db_size = round(db_fetch_result($result, 0, "db_size") / 1024);
 397
 398                 print "<tr><td>Approx. used DB size</td><td>$db_size KBytes</td></tr>";  */
 399
 400                 print "</table>";
 401
 402                 print "<h1>".__('Subscribed feeds')."</h1>";
 403
 404                 $result = db_query($link, "SELECT id,title,site_url FROM ttrss_feeds
 405                         WHERE owner_uid = '$uid' ORDER BY title");
 406
 407                 print "<ul class=\"userFeedList\">";
 408
 409                 $row_class = "odd";
 410
 411                 while ($line = db_fetch_assoc($result)) {
 412
 413                         $icon_file = ICONS_URL."/".$line["id"].".ico";
 414
 415                         if (file_exists($icon_file) && filesize($icon_file) > 0) {
 416                                 $feed_icon = "<img class=\"tinyFeedIcon\" src=\"$icon_file\">";
 417                         } else {
 418                                 $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
 419                         }
 420
 421                         print "<li class=\"$row_class\">$feed_icon&nbsp;<a href=\"".$line["site_url"]."\">".$line["title"]."</a></li>";
 422
 423                         $row_class = toggleEvenOdd($row_class);
 424
 425                 }
 426
 427                 if (db_num_rows($result) < $num_feeds) {
 428                          // FIXME - add link to show ALL subscribed feeds here somewhere
 429                         print "<li><img
 430                                 class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">&nbsp;...</li>";
 431                 }
 432
 433                 print "</ul>";
 434
 435                 print "</div>";
 436
 437                 print "<div align='center'>
 438                         <input type='submit' class='button'
 439                         onclick=\"closeInfoBox()\" value=\"Close this window\"></div>";
 440
 441 //              print "</body></html>";
 442
 443         }
 444
 445         if ($op == "pref-feed-browser") {
 446                 module_pref_feed_browser($link);
 447         }
 448
 449         if ($op == "publish") {
 450                 $key = db_escape_string($_GET["key"]);
 451
 452                 $result = db_query($link, "SELECT login, owner_uid
 453                         FROM ttrss_user_prefs, ttrss_users WHERE
 454                         pref_name = '_PREFS_PUBLISH_KEY' AND
 455                         value = '$key' AND
 456                         ttrss_users.id = owner_uid");
 457
 458                 if (db_num_rows($result) == 1) {
 459                         $owner = db_fetch_result($result, 0, "owner_uid");
 460                         $login = db_fetch_result($result, 0, "login");
 461
 462                         generate_syndicated_feed($link, $owner, -2, false);
 463
 464                 } else {
 465                         print "<error>User not found</error>";
 466                 }
 467
 468         }
 469
 470         if ($op == "rss") {
 471                 $feed = db_escape_string($_GET["id"]);
 472                 $user = db_escape_string($_GET["user"]);
 473                 $pass = db_escape_string($_GET["pass"]);
 474                 $is_cat = $_GET["is_cat"] != false;
 475
 476                 $search = db_escape_string($_GET["q"]);
 477                 $match_on = db_escape_string($_GET["m"]);
 478                 $search_mode = db_escape_string($_GET["smode"]);
 479
 480                 if (!$_SESSION["uid"] && $user && $pass) {
 481                         authenticate_user($link, $user, $pass);
 482                 }
 483
 484                 if ($_SESSION["uid"] ||
 485                         http_authenticate_user($link)) {
 486
 487                                 generate_syndicated_feed($link, 0, $feed, $is_cat,
 488                                         $search, $search_mode, $match_on);
 489                 }
 490
 491         }
 492
 493         if ($op == "labelFromSearch") {
 494                 $search = db_escape_string($_GET["search"]);
 495                 $search_mode = db_escape_string($_GET["smode"]);
 496                 $match_on = db_escape_string($_GET["match"]);
 497                 $is_cat = db_escape_string($_GET["is_cat"]);
 498                 $title = db_escape_string($_GET["title"]);
 499                 $feed = sprintf("%d", $_GET["feed"]);
 500
 501                 $label_qparts = array();
 502
 503                 $search_expr = getSearchSql($search, $match_on);
 504
 505                 if ($is_cat) {
 506                         if ($feed != 0) {
 507                                 $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
 508                         } else {
 509                                 $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 510                         }
 511                 } else {
 512                         if ($search_mode == "all_feeds") {
 513                                 // NOOP
 514                         } else if ($search_mode == "this_cat") {
 515
 516                                 $tmp_result = db_query($link, "SELECT cat_id
 517                                         FROM ttrss_feeds WHERE id = '$feed'");
 518
 519                                 $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
 520
 521                                 if ($cat_id > 0) {
 522                                         $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
 523                                 } else {
 524                                         $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 525                                 }
 526                         } else {
 527                                 $search_expr .= " AND ttrss_feeds.id = $feed ";
 528                         }
 529
 530                 }
 531
 532                 $search_expr = db_escape_string($search_expr);
 533
 534                 print $search_expr;
 535
 536                 if ($title) {
 537                         $result = db_query($link,
 538                                 "INSERT INTO ttrss_labels (sql_exp,description,owner_uid)
 539                                 VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
 540                 }
 541         }
 542
 543         if ($op == "getUnread") {
 544                 $login = db_escape_string($_GET["login"]);
 545
 546                 header("Content-Type: text/plain; charset=utf-8");
 547
 548                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 549
 550                 if (db_num_rows($result) == 1) {
 551                         $uid = db_fetch_result($result, 0, "id");
 552                         print getGlobalUnread($link, $uid);
 553                 } else {
 554                         print "-1;User not found";
 555                 }
 556
 557                 $print_exec_time = false;
 558         }
 559
 560         if ($op == "digestTest") {
 561                 header("Content-Type: text/plain");
 562                 print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 563                 $print_exec_time = false;
 564
 565         }
 566
 567         if ($op == "digestSend") {
 568                 header("Content-Type: text/plain");
 569                 send_headlines_digests($link);
 570                 $print_exec_time = false;
 571
 572         }
 573
 574         db_close($link);
 575 ?>
 576
 577 <?php if ($print_exec_time) { ?>
 578 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 579 <?php } ?>