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
  68                                 if (ENABLE_GZIP_OUTPUT) {
  69                                         ob_start("ob_gzhandler");
  70                                 }
  71
  72                 } else {
  73                 if (!$_REQUEST["noxml"]) {
  74                         header("Content-Type: text/html; charset=utf-8");
  75                 } else {
  76                         header("Content-Type: text/plain; charset=utf-8");
  77                 }
  78         }
  79
  80         if (!$op) {
  81                 header("Content-Type: application/xml");
  82                 print_error_xml(7); exit;
  83         }
  84
  85         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  86                         && $op != "rss" && $op != "getUnread" && $op != "publish") {
  87
  88                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  89                         print_error_xml(6); die;
  90                 } else {
  91                         print "
  92                         <html><body>
  93                                 <p>Error: Not logged in.</p>
  94                                 <script type=\"text/javascript\">
  95                                         if (parent.window != 'undefined') {
  96                                                 parent.window.location = \"tt-rss.php\";
  97                                         } else {
  98                                                 window.location = \"tt-rss.php\";
  99                                         }
 100                                 </script>
 101                         </body></html>
 102                         ";
 103                 }
 104                 exit;
 105         }
 106
 107         $purge_intervals = array(
 108                 0  => __("Use default"),
 109                 -1 => __("Never purge"),
 110                 5  => __("1 week old"),
 111                 14 => __("2 weeks old"),
 112                 31 => __("1 month old"),
 113                 60 => __("2 months old"),
 114                 90 => __("3 months old"));
 115
 116         $update_intervals = array(
 117                 0   => __("Default interval"),
 118                 -1  => __("Disable updates"),
 119                 15  => __("Each 15 minutes"),
 120                 30  => __("Each 30 minutes"),
 121                 60  => __("Hourly"),
 122                 240 => __("Each 4 hours"),
 123                 720 => __("Each 12 hours"),
 124                 1440 => __("Daily"),
 125                 10080 => __("Weekly"));
 126
 127         $update_methods = array(
 128                 0   => __("Default"),
 129                 1   => __("Magpie"),
 130                 2   => __("SimplePie"));
 131
 132         if (ENABLE_SIMPLEPIE) {
 133                 $update_methods[0] .= ' (SimplePie)';
 134         } else {
 135                 $update_methods[0] .= ' (Magpie)';
 136         }
 137
 138         $access_level_names = array(
 139                 0 => __("User"),
 140                 5 => __("Power User"),
 141                 10 => __("Administrator"));
 142
 143         require_once "modules/pref-prefs.php";
 144         require_once "modules/popup-dialog.php";
 145         require_once "modules/help.php";
 146         require_once "modules/pref-feeds.php";
 147         require_once "modules/pref-filters.php";
 148         require_once "modules/pref-labels.php";
 149         require_once "modules/pref-users.php";
 150         require_once "modules/pref-feed-browser.php";
 151
 152         if (!sanity_check($link)) { return; }
 153
 154         switch($op) { // Select action according to $op value.
 155                 case "rpc":
 156                         // Handle remote procedure calls.
 157                         handle_rpc_request($link);
 158                 break; // rpc
 159
 160                 case "feeds":
 161                         if (ENABLE_GZIP_OUTPUT) {
 162                                 ob_start("ob_gzhandler");
 163                         }
 164
 165                         $tags = $_GET["tags"];
 166
 167                         $subop = $_GET["subop"];
 168
 169                         switch($subop) {
 170                                 case "catchupAll":
 171                                         db_query($link, "UPDATE ttrss_user_entries SET
 172                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 173                                 break;
 174
 175                                 case "collapse":
 176                                         $cat_id = db_escape_string($_GET["cid"]);
 177
 178                                         db_query($link, "UPDATE ttrss_feed_categories SET
 179                                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 180                                                 $_SESSION["uid"]);
 181                                         return;
 182                                 break;
 183
 184                                 case "catsortreset":
 185                                         db_query($link, "UPDATE ttrss_feed_categories
 186                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 187                                         return;
 188                                 break;
 189
 190                                 case "catsort":
 191                                         $corder = db_escape_string($_GET["corder"]);
 192
 193                                         $cats = split(",", $corder);
 194
 195                                         for ($i = 0; $i < count($cats); $i++) {
 196                                                 $cat_id = $cats[$i];
 197
 198                                                 if ($cat_id > 0) {
 199                                                         db_query($link, "UPDATE ttrss_feed_categories
 200                                                                 SET order_id = '$i' WHERE id = '$cat_id' AND
 201                                                                 owner_uid = " . $_SESSION["uid"]);
 202                                                 }
 203                                         }
 204
 205                                         return;
 206                                 break;
 207
 208                         }
 209
 210                         outputFeedList($link, $tags);
 211                 break; // feeds
 212
 213                 case "view":
 214
 215                         $id = db_escape_string($_GET["id"]);
 216                         $feed_id = db_escape_string($_GET["feed"]);
 217                         $cids = split(",", db_escape_string($_GET["cids"]));
 218                         $mode = db_escape_string($_GET["mode"]);
 219                         $omode = db_escape_string($_GET["omode"]);
 220
 221                         $csync = $_GET["csync"];
 222
 223                         print "<reply>";
 224
 225                         // in prefetch mode we only output requested cids, main article
 226                         // just gets marked as read (it already exists in client cache)
 227
 228                         if ($mode == "") {
 229                                 outputArticleXML($link, $id, $feed_id);
 230                         } else if ($mode == "zoom") {
 231                                 outputArticleXML($link, $id, $feed_id, true, true);
 232                         } else {
 233                                 catchupArticleById($link, $id, 0);
 234                         }
 235
 236                         if (!$_SESSION["bw_limit"]) {
 237                                 foreach ($cids as $cid) {
 238                                         if ($cid) {
 239                                                 outputArticleXML($link, $cid, $feed_id, false);
 240                                         }
 241                                 }
 242                         }
 243
 244
 245                         if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
 246                                 print "<counters>";
 247                                 getAllCounters($link, $omode);
 248                                 print "</counters>";
 249                         }
 250
 251                         print "</reply>";
 252                 break; // view
 253
 254                 case "viewfeed":
 255
 256                         $print_exec_time = true;
 257                         $timing_info = getmicrotime();
 258
 259                         print "<reply>";
 260
 261                         if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 262
 263                         $omode = db_escape_string($_GET["omode"]);
 264
 265                         $feed = db_escape_string($_GET["feed"]);
 266                         $subop = db_escape_string($_GET["subop"]);
 267                         $view_mode = db_escape_string($_GET["view_mode"]);
 268                         $limit = db_escape_string($_GET["limit"]);
 269                         $cat_view = db_escape_string($_GET["cat"]);
 270                         $next_unread_feed = db_escape_string($_GET["nuf"]);
 271                         $offset = db_escape_string($_GET["skip"]);
 272                         $vgroup_last_feed = db_escape_string($_GET["vgrlf"]);
 273                         $csync = $_GET["csync"];
 274
 275                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 276                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 277
 278                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 279                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 280                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 281                         }
 282
 283                         print "<headlines id=\"$feed\"><![CDATA[";
 284
 285                         if ($feed == -4) {
 286
 287                                 generate_dashboard_feed($link);
 288
 289                         } else {
 290
 291                                 $ret = outputHeadlinesList($link, $feed, $subop,
 292                                         $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 293                                         $vgroup_last_feed);
 294
 295                                 $topmost_article_ids = $ret[0];
 296                                 $headlines_count = $ret[1];
 297                                 $returned_feed = $ret[2];
 298                                 $disable_cache = $ret[3];
 299                                 $vgroup_last_feed = $ret[4];
 300
 301                                 print "]]></headlines>";
 302
 303                                 print "<headlines-count value=\"$headlines_count\"/>";
 304                                 print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 305
 306                                 $headlines_unread = getFeedUnread($link, $returned_feed);
 307
 308                                 print "<headlines-unread value=\"$headlines_unread\"/>";
 309                                 printf("<disable-cache value=\"%d\"/>", $disable_cache);
 310
 311                                 if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 312
 313                                 if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 314                                         print "<articles>";
 315                                         foreach ($topmost_article_ids as $id) {
 316                                                 outputArticleXML($link, $id, $feed, false);
 317                                         }
 318                                         print "</articles>";
 319                                 }
 320                         }
 321
 322                         if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 323
 324                         $viewfeed_ctr_interval = 300;
 325
 326                         if ($csync || $_SESSION["bw_limit"]) {
 327                                 $viewfeed_ctr_interval = 60;
 328                         }
 329
 330                         if (get_pref($link, "SYNC_COUNTERS") ||
 331                                         time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
 332                                 print "<counters>";
 333                                 getAllCounters($link, $omode, $feed);
 334                                 print "</counters>";
 335                         }
 336
 337                         if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 338
 339                         print_runtime_info($link);
 340
 341                         print "</reply>";
 342                 break; // viewfeed
 343
 344                 case "pref-feeds":
 345                         module_pref_feeds($link);
 346                 break; // pref-feeds
 347
 348                 case "pref-filters":
 349                         module_pref_filters($link);
 350                 break; // pref-filters
 351
 352                 case "pref-labels":
 353                         module_pref_labels($link);
 354                 break; // pref-labels
 355
 356                 case "pref-prefs":
 357                         module_pref_prefs($link);
 358                 break; // pref-prefs
 359
 360                 case "pref-users":
 361                         module_pref_users($link);
 362                 break; // prefs-users
 363
 364                 case "help":
 365                         module_help($link);
 366                 break; // help
 367
 368                 case "dlg":
 369                         module_popup_dialog($link);
 370                 break; // dlg
 371
 372                 case "pref-pub-items":
 373                         module_pref_pub_items($link);
 374                 break; // pref-pub-items
 375
 376                 case "globalUpdateFeeds":
 377                         // update feeds of all users, may be used anonymously
 378
 379                         print "<!--";
 380                         // Update all feeds needing a update.
 381                         update_daemon_common($link, 0, true, true);
 382                         print " -->";
 383
 384                         // FIXME : old feed update way. To be removed.
 385                         //$result = db_query($link, "SELECT id FROM ttrss_users");
 386
 387                         //while ($line = db_fetch_assoc($result)) {
 388                         //      $user_id = $line["id"];
 389                         //      print "<!-- updating feeds of uid $user_id -->";
 390                         //      update_all_feeds($link, false, $user_id);
 391                         //}
 392
 393                         print "<rpc-reply>
 394                                 <message msg=\"All feeds updated\"/>
 395                         </rpc-reply>";
 396                 break; // globalUpdateFeeds
 397
 398                 case "user-details":
 399
 400                         if (WEB_DEMO_MODE || $_SESSION["access_level"] < 10) {
 401                                 return;
 402                         }
 403
 404                         /*
 405                         print "<html><head>
 406                                 <title>Tiny Tiny RSS : User Details</title>
 407                                 <link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
 408                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
 409                                 </head><body>";
 410                         */
 411
 412                         $uid = sprintf("%d", $_GET["id"]);
 413
 414                         print "<div id=\"infoBoxTitle\">User details</div>";
 415
 416                         print "<div class='infoBoxContents'>";
 417
 418                         $result = db_query($link, "SELECT login,
 419                                 ".SUBSTRING_FOR_DATE."(last_login,1,16) AS last_login,
 420                                 access_level,
 421                                 (SELECT COUNT(int_id) FROM ttrss_user_entries
 422                                         WHERE owner_uid = id) AS stored_articles,
 423                                 ".SUBSTRING_FOR_DATE."(created,1,16) AS created
 424                                 FROM ttrss_users
 425                                 WHERE id = '$uid'");
 426
 427                         if (db_num_rows($result) == 0) {
 428                                 print "<h1>User not found</h1>";
 429                                 return;
 430                         }
 431
 432                         // print "<h1>User Details</h1>";
 433
 434                         $login = db_fetch_result($result, 0, "login");
 435
 436                         // print "<h1>$login</h1>";
 437
 438                         print "<table width='100%'>";
 439
 440                         $last_login = date(get_pref($link, 'LONG_DATE_FORMAT'),
 441                                 strtotime(db_fetch_result($result, 0, "last_login")));
 442
 443                         $created = date(get_pref($link, 'LONG_DATE_FORMAT'),
 444                                 strtotime(db_fetch_result($result, 0, "created")));
 445
 446                         $access_level = db_fetch_result($result, 0, "access_level");
 447                         $stored_articles = db_fetch_result($result, 0, "stored_articles");
 448
 449                         // print "<tr><td>Username</td><td>$login</td></tr>";
 450                         // print "<tr><td>Access level</td><td>$access_level</td></tr>";
 451                         print "<tr><td>".__('Registered')."</td><td>$created</td></tr>";
 452                         print "<tr><td>".__('Last logged in')."</td><td>$last_login</td></tr>";
 453                         print "<tr><td>".__('Stored articles')."</td><td>$stored_articles</td></tr>";
 454
 455                         $result = db_query($link, "SELECT COUNT(id) as num_feeds FROM ttrss_feeds
 456                                 WHERE owner_uid = '$uid'");
 457
 458                         $num_feeds = db_fetch_result($result, 0, "num_feeds");
 459
 460                         print "<tr><td>".__('Subscribed feeds count')."</td><td>$num_feeds</td></tr>";
 461
 462                         /*
 463                         $result = db_query($link, "SELECT
 464                                 SUM(LENGTH(content)+LENGTH(title)+LENGTH(link)+LENGTH(guid)) AS db_size
 465                                 FROM ttrss_user_entries,ttrss_entries
 466                                         WHERE owner_uid = '$uid' AND ref_id = id");
 467
 468                         $db_size = round(db_fetch_result($result, 0, "db_size") / 1024);
 469
 470                         print "<tr><td>Approx. used DB size</td><td>$db_size KBytes</td></tr>";
 471                         */
 472
 473                         print "</table>";
 474
 475                         print "<h1>".__('Subscribed feeds')."</h1>";
 476
 477                         $result = db_query($link, "SELECT id,title,site_url FROM ttrss_feeds
 478                                 WHERE owner_uid = '$uid' ORDER BY title");
 479
 480                         print "<ul class=\"userFeedList\">";
 481
 482                         $row_class = "odd";
 483
 484                         while ($line = db_fetch_assoc($result)) {
 485
 486                                 $icon_file = ICONS_URL."/".$line["id"].".ico";
 487
 488                                 if (file_exists($icon_file) && filesize($icon_file) > 0) {
 489                                         $feed_icon = "<img class=\"tinyFeedIcon\" src=\"$icon_file\">";
 490                                 } else {
 491                                         $feed_icon = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">";
 492                                 }
 493
 494                                 print "<li class=\"$row_class\">$feed_icon&nbsp;<a href=\"".$line["site_url"]."\">".$line["title"]."</a></li>";
 495
 496                                 $row_class = toggleEvenOdd($row_class);
 497
 498                         }
 499
 500                         if (db_num_rows($result) < $num_feeds) {
 501                                 // FIXME - add link to show ALL subscribed feeds here somewhere
 502                                 print "<li><img
 503                                         class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\">&nbsp;...</li>";
 504                         }
 505
 506                         print "</ul>";
 507
 508                         print "</div>";
 509
 510                         print "<div align='center'>
 511                                 <input type='submit' class='button'
 512                                 onclick=\"closeInfoBox()\" value=\"Close this window\"></div>";
 513
 514                         // print "</body></html>";
 515
 516                 break; // user-details
 517
 518                 case "pref-feed-browser":
 519                         module_pref_feed_browser($link);
 520                 break; // pref-feed-browser
 521
 522                 case "publish":
 523                         $key = db_escape_string($_GET["key"]);
 524
 525                         $result = db_query($link, "SELECT login, owner_uid
 526                                 FROM ttrss_user_prefs, ttrss_users WHERE
 527                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 528                                 value = '$key' AND
 529                                 ttrss_users.id = owner_uid");
 530
 531                         if (db_num_rows($result) == 1) {
 532                                 $owner = db_fetch_result($result, 0, "owner_uid");
 533                                 $login = db_fetch_result($result, 0, "login");
 534
 535                                 generate_syndicated_feed($link, $owner, -2, false);
 536
 537                         } else {
 538                                 print "<error>User not found</error>";
 539                         }
 540                 break; // publish
 541
 542                 case "rss":
 543                         $feed = db_escape_string($_GET["id"]);
 544                         $user = db_escape_string($_GET["user"]);
 545                         $pass = db_escape_string($_GET["pass"]);
 546                         $is_cat = $_GET["is_cat"] != false;
 547
 548                         $search = db_escape_string($_GET["q"]);
 549                         $match_on = db_escape_string($_GET["m"]);
 550                         $search_mode = db_escape_string($_GET["smode"]);
 551
 552                         if (!$_SESSION["uid"] && $user && $pass) {
 553                                 authenticate_user($link, $user, $pass);
 554                         }
 555
 556                         if ($_SESSION["uid"] ||
 557                                 http_authenticate_user($link)) {
 558
 559                                         generate_syndicated_feed($link, 0, $feed, $is_cat,
 560                                                 $search, $search_mode, $match_on);
 561                         }
 562                 break; // rss
 563
 564                 case "labelFromSearch":
 565                         $search = db_escape_string($_GET["search"]);
 566                         $search_mode = db_escape_string($_GET["smode"]);
 567                         $match_on = db_escape_string($_GET["match"]);
 568                         $is_cat = db_escape_string($_GET["is_cat"]);
 569                         $title = db_escape_string($_GET["title"]);
 570                         $feed = sprintf("%d", $_GET["feed"]);
 571
 572                         $label_qparts = array();
 573
 574                         $search_expr = getSearchSql($search, $match_on);
 575
 576                         if ($is_cat) {
 577                                 if ($feed != 0) {
 578                                         $search_expr .= " AND ttrss_feeds.cat_id = $feed ";
 579                                 } else {
 580                                         $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 581                                 }
 582                         } else {
 583                                 if ($search_mode == "all_feeds") {
 584                                         // NOOP
 585                                 } else if ($search_mode == "this_cat") {
 586
 587                                         $tmp_result = db_query($link, "SELECT cat_id
 588                                                 FROM ttrss_feeds WHERE id = '$feed'");
 589
 590                                         $cat_id = db_fetch_result($tmp_result, 0, "cat_id");
 591
 592                                         if ($cat_id > 0) {
 593                                                 $search_expr .= " AND ttrss_feeds.cat_id = $cat_id ";
 594                                         } else {
 595                                                 $search_expr .= " AND ttrss_feeds.cat_id IS NULL ";
 596                                         }
 597                                 } else {
 598                                         $search_expr .= " AND ttrss_feeds.id = $feed ";
 599                                 }
 600
 601                         }
 602
 603                         $search_expr = db_escape_string($search_expr);
 604
 605                         print $search_expr;
 606
 607                         if ($title) {
 608                                 $result = db_query($link,
 609                                         "INSERT INTO ttrss_labels (sql_exp,description,owner_uid)
 610                                         VALUES ('$search_expr', '$title', '".$_SESSION["uid"]."')");
 611                         }
 612                 break; // labelFromSearch
 613
 614                 case "getUnread":
 615                         $login = db_escape_string($_GET["login"]);
 616
 617                         header("Content-Type: text/plain; charset=utf-8");
 618
 619                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 620
 621                         if (db_num_rows($result) == 1) {
 622                                 $uid = db_fetch_result($result, 0, "id");
 623                                 print getGlobalUnread($link, $uid);
 624                         } else {
 625                                 print "-1;User not found";
 626                         }
 627
 628                         $print_exec_time = false;
 629                 break; // getUnread
 630
 631                 case "digestTest":
 632                         header("Content-Type: text/plain");
 633                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 634                         $print_exec_time = false;
 635                 break; // digestTest
 636
 637                 case "digestSend":
 638                         header("Content-Type: text/plain");
 639                         send_headlines_digests($link);
 640                         $print_exec_time = false;
 641                 break; // digestSend
 642
 643         } // Select action according to $op value.
 644
 645         // We close the connection to database.
 646         db_close($link);
 647 ?>
 648
 649 <?php if ($print_exec_time) { ?>
 650 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 651 <?php } ?>