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         init_connection($link);
  50
  51         $op = $_REQUEST["op"];
  52         $mode = $_REQUEST["mode"];
  53
  54         $print_exec_time = false;
  55
  56         if ((!$op || $op == "rpc" || $op == "rss" ||
  57                         ($op == "view" && $mode != "zoom") ||
  58                         $op == "digestSend" || $op == "viewfeed" || $op == "publish" ||
  59                         $op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
  60                                 header("Content-Type: application/xml; charset=utf-8");
  61
  62                                 if (ENABLE_GZIP_OUTPUT) {
  63                                         ob_start("ob_gzhandler");
  64                                 }
  65
  66                 } else {
  67                 if (!$_REQUEST["noxml"]) {
  68                         header("Content-Type: text/html; charset=utf-8");
  69                 } else {
  70                         header("Content-Type: text/plain; charset=utf-8");
  71                 }
  72         }
  73
  74         if (!$op) {
  75                 header("Content-Type: application/xml");
  76                 print_error_xml(7); exit;
  77         }
  78
  79         if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
  80                         && $op != "rss" && $op != "getUnread" && $op != "publish") {
  81
  82                 if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
  83                         print_error_xml(6); die;
  84                 } else {
  85                         print "
  86                         <html><body>
  87                                 <p>Error: Not logged in.</p>
  88                                 <script type=\"text/javascript\">
  89                                         if (parent.window != 'undefined') {
  90                                                 parent.window.location = \"tt-rss.php\";
  91                                         } else {
  92                                                 window.location = \"tt-rss.php\";
  93                                         }
  94                                 </script>
  95                         </body></html>
  96                         ";
  97                 }
  98                 exit;
  99         }
 100
 101         $purge_intervals = array(
 102                 0  => __("Use default"),
 103                 -1 => __("Never purge"),
 104                 5  => __("1 week old"),
 105                 14 => __("2 weeks old"),
 106                 31 => __("1 month old"),
 107                 60 => __("2 months old"),
 108                 90 => __("3 months old"));
 109
 110         $update_intervals = array(
 111                 0   => __("Default interval"),
 112                 -1  => __("Disable updates"),
 113                 15  => __("Each 15 minutes"),
 114                 30  => __("Each 30 minutes"),
 115                 60  => __("Hourly"),
 116                 240 => __("Each 4 hours"),
 117                 720 => __("Each 12 hours"),
 118                 1440 => __("Daily"),
 119                 10080 => __("Weekly"));
 120
 121         $update_methods = array(
 122                 0   => __("Default"),
 123                 1   => __("Magpie"),
 124                 2   => __("SimplePie"));
 125
 126         if (ENABLE_SIMPLEPIE) {
 127                 $update_methods[0] .= ' (SimplePie)';
 128         } else {
 129                 $update_methods[0] .= ' (Magpie)';
 130         }
 131
 132         $access_level_names = array(
 133                 0 => __("User"),
 134                 5 => __("Power User"),
 135                 10 => __("Administrator"));
 136
 137         require_once "modules/pref-prefs.php";
 138         require_once "modules/popup-dialog.php";
 139         require_once "modules/help.php";
 140         require_once "modules/pref-feeds.php";
 141         require_once "modules/pref-filters.php";
 142         require_once "modules/pref-labels.php";
 143         require_once "modules/pref-users.php";
 144
 145         if (!sanity_check($link)) { return; }
 146
 147         switch($op) { // Select action according to $op value.
 148                 case "rpc":
 149                         // Handle remote procedure calls.
 150                         handle_rpc_request($link);
 151                 break; // rpc
 152
 153                 case "feeds":
 154                         if (ENABLE_GZIP_OUTPUT) {
 155                                 ob_start("ob_gzhandler");
 156                         }
 157
 158                         $tags = $_GET["tags"];
 159
 160                         $subop = $_GET["subop"];
 161
 162                         switch($subop) {
 163                                 case "catchupAll":
 164                                         db_query($link, "UPDATE ttrss_user_entries SET
 165                                                 last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
 166                                         ccache_zero_all($link, $_SESSION["uid"]);
 167
 168                                 break;
 169
 170                                 case "collapse":
 171                                         $cat_id = db_escape_string($_GET["cid"]);
 172
 173                                         db_query($link, "UPDATE ttrss_feed_categories SET
 174                                                 collapsed = NOT collapsed WHERE id = '$cat_id' AND owner_uid = " .
 175                                                 $_SESSION["uid"]);
 176                                         return;
 177                                 break;
 178
 179                                 case "catsortreset":
 180                                         db_query($link, "UPDATE ttrss_feed_categories
 181                                                         SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
 182                                         return;
 183                                 break;
 184
 185                                 case "catsort":
 186                                         $corder = db_escape_string($_GET["corder"]);
 187
 188                                         $cats = split(",", $corder);
 189
 190                                         for ($i = 0; $i < count($cats); $i++) {
 191                                                 $cat_id = $cats[$i];
 192
 193                                                 if ($cat_id > 0) {
 194                                                         db_query($link, "UPDATE ttrss_feed_categories
 195                                                                 SET order_id = '$i' WHERE id = '$cat_id' AND
 196                                                                 owner_uid = " . $_SESSION["uid"]);
 197                                                 }
 198                                         }
 199
 200                                         return;
 201                                 break;
 202
 203                         }
 204
 205                         outputFeedList($link, $tags);
 206                 break; // feeds
 207
 208                 case "view":
 209
 210                         $id = db_escape_string($_GET["id"]);
 211                         $feed_id = db_escape_string($_GET["feed"]);
 212                         $cids = split(",", db_escape_string($_GET["cids"]));
 213                         $mode = db_escape_string($_GET["mode"]);
 214                         $omode = db_escape_string($_GET["omode"]);
 215
 216                         $csync = $_GET["csync"];
 217
 218                         print "<reply>";
 219
 220                         // in prefetch mode we only output requested cids, main article
 221                         // just gets marked as read (it already exists in client cache)
 222
 223                         if ($mode == "") {
 224                                 outputArticleXML($link, $id, $feed_id);
 225                         } else if ($mode == "zoom") {
 226                                 outputArticleXML($link, $id, $feed_id, true, true);
 227                         } else {
 228                                 catchupArticleById($link, $id, 0);
 229                                 ccache_update($link, $feed_id, $_SESSION["uid"]);
 230                         }
 231
 232                         if (!$_SESSION["bw_limit"]) {
 233                                 foreach ($cids as $cid) {
 234                                         if ($cid) {
 235                                                 outputArticleXML($link, $cid, $feed_id, false);
 236                                         }
 237                                 }
 238                         }
 239
 240 //                      if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
 241
 242                         if (time() - $_SESSION["view:counters_stamp"] > 3 && $mode == "prefetch") {
 243                                 print "<counters>";
 244                                 getAllCounters($link, $omode);
 245                                 print "</counters>";
 246                                 $_SESSION["view:counters_stamp"] = time();
 247                         }
 248
 249                         print "</reply>";
 250                 break; // view
 251
 252                 case "viewfeed":
 253
 254                         $print_exec_time = true;
 255                         $timing_info = getmicrotime();
 256
 257                         print "<reply>";
 258
 259                         if ($_GET["debug"]) $timing_info = print_checkpoint("0", $timing_info);
 260
 261                         $omode = db_escape_string($_GET["omode"]);
 262
 263                         $feed = db_escape_string($_GET["feed"]);
 264                         $subop = db_escape_string($_GET["subop"]);
 265                         $view_mode = db_escape_string($_GET["view_mode"]);
 266                         $limit = db_escape_string($_GET["limit"]);
 267                         $cat_view = db_escape_string($_GET["cat"]);
 268                         $next_unread_feed = db_escape_string($_GET["nuf"]);
 269                         $offset = db_escape_string($_GET["skip"]);
 270                         $vgroup_last_feed = db_escape_string($_GET["vgrlf"]);
 271                         $csync = $_GET["csync"];
 272                         $order_by = db_escape_string($_GET["order_by"]);
 273
 274                         /* Updating a label ccache means recalculating all of the caches
 275                          * so for performance reasons we don't do that here */
 276
 277 //                      if (time() - $_SESSION["viewfeed:ccache_update_stamp"] > 120) {
 278                                 if ($feed >= 0) {
 279                                         ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
 280                                 }
 281                                 $_SESSION["viewfeed:ccache_update_stamp"] = time();
 282 //                      }
 283
 284                         set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
 285                         set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
 286                         set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
 287
 288                         if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
 289                                 db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
 290                                         WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
 291                         }
 292
 293                         if (!$next_unread_feed) {
 294                                 print "<headlines id=\"$feed\" is_cat=\"$cat_view\"><![CDATA[";
 295                         } else {
 296                                 print "<headlines id=\"$next_unread_feed\" is_cat=\"$cat_view\"><![CDATA[";
 297                         }
 298
 299                         $override_order = false;
 300
 301                         switch ($order_by) {
 302                                 case "date":
 303                                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
 304                                                 $override_order = "updated";
 305                                         } else {
 306                                                 $override_order = "updated DESC";
 307                                         }
 308                                         break;
 309
 310                                 case "title":
 311                                         $override_order = "updated DESC";
 312                                         break;
 313
 314                                 case "score":
 315                                         $override_order = "score DESC";
 316                                         break;
 317                         }
 318
 319                         $ret = outputHeadlinesList($link, $feed, $subop,
 320                                 $view_mode, $limit, $cat_view, $next_unread_feed, $offset,
 321                                 $vgroup_last_feed, $override_order);
 322
 323                         $topmost_article_ids = $ret[0];
 324                         $headlines_count = $ret[1];
 325                         $returned_feed = $ret[2];
 326                         $disable_cache = $ret[3];
 327                         $vgroup_last_feed = $ret[4];
 328
 329                         print "]]></headlines>";
 330
 331                         print "<headlines-count value=\"$headlines_count\"/>";
 332                         print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
 333
 334                         $headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
 335                                         $cat_view, true);
 336
 337                         if ($headlines_unread == -1) {
 338                                 $headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
 339
 340                         }
 341
 342                         print "<headlines-unread value=\"$headlines_unread\"/>";
 343                         printf("<disable-cache value=\"%d\"/>", $disable_cache);
 344
 345                         if ($_GET["debug"]) $timing_info = print_checkpoint("10", $timing_info);
 346
 347                         if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
 348                                 print "<articles>";
 349                                 foreach ($topmost_article_ids as $id) {
 350                                         outputArticleXML($link, $id, $feed, false);
 351                                 }
 352                                 print "</articles>";
 353                         }
 354
 355                         if ($_GET["debug"]) $timing_info = print_checkpoint("20", $timing_info);
 356
 357
 358 //                      if (get_pref($link, "SYNC_COUNTERS") ||
 359 //                                      time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
 360 //                              print "<counters>";
 361 //                              getAllCounters($link, $omode, $feed);
 362 //                              print "</counters>";
 363 //                      }
 364
 365                         if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop ||
 366                                 time() - $_SESSION["viewfeed:counters_stamp"] > 60) {
 367                                 if (!$offset) {
 368                                         print "<counters>";
 369                                         getAllCounters($link, $omode, $feed);
 370                                         print "</counters>";
 371                                         $_SESSION["viewfeed:counters_stamp"] = time();
 372                                 }
 373                         }
 374
 375                         if ($_GET["debug"]) $timing_info = print_checkpoint("30", $timing_info);
 376
 377                         print_runtime_info($link);
 378
 379                         print "</reply>";
 380                 break; // viewfeed
 381
 382                 case "pref-feeds":
 383                         module_pref_feeds($link);
 384                 break; // pref-feeds
 385
 386                 case "pref-filters":
 387                         module_pref_filters($link);
 388                 break; // pref-filters
 389
 390                 case "pref-labels":
 391                         module_pref_labels($link);
 392                 break; // pref-labels
 393
 394                 case "pref-prefs":
 395                         module_pref_prefs($link);
 396                 break; // pref-prefs
 397
 398                 case "pref-users":
 399                         module_pref_users($link);
 400                 break; // prefs-users
 401
 402                 case "help":
 403                         module_help($link);
 404                 break; // help
 405
 406                 case "dlg":
 407                         module_popup_dialog($link);
 408                 break; // dlg
 409
 410                 case "pref-pub-items":
 411                         module_pref_pub_items($link);
 412                 break; // pref-pub-items
 413
 414                 case "globalUpdateFeeds":
 415                         // update feeds of all users, may be used anonymously
 416
 417                         print "<!--";
 418                         // Update all feeds needing a update.
 419                         update_daemon_common($link, 0, true, true);
 420                         print " -->";
 421
 422                         print "<rpc-reply>
 423                                 <message msg=\"All feeds updated\"/>
 424                         </rpc-reply>";
 425                 break; // globalUpdateFeeds
 426
 427                 case "pref-feed-browser":
 428                         module_pref_feed_browser($link);
 429                 break; // pref-feed-browser
 430
 431                 case "publish":
 432                         $key = db_escape_string($_GET["key"]);
 433                         $limit = (int)db_escape_string($_GET["limit"]);
 434
 435                         $result = db_query($link, "SELECT login, owner_uid
 436                                 FROM ttrss_user_prefs, ttrss_users WHERE
 437                                 pref_name = '_PREFS_PUBLISH_KEY' AND
 438                                 value = '$key' AND
 439                                 ttrss_users.id = owner_uid");
 440
 441                         if (db_num_rows($result) == 1) {
 442                                 $owner = db_fetch_result($result, 0, "owner_uid");
 443                                 $login = db_fetch_result($result, 0, "login");
 444
 445                                 generate_syndicated_feed($link, $owner, -2, false, $limit);
 446
 447                         } else {
 448                                 print "<error>User not found</error>";
 449                         }
 450                 break; // publish
 451
 452                 case "rss":
 453                         $feed = db_escape_string($_GET["id"]);
 454                         $user = db_escape_string($_GET["user"]);
 455                         $pass = db_escape_string($_GET["pass"]);
 456                         $is_cat = $_GET["is_cat"] != false;
 457                         $limit = (int)db_escape_string($_GET["limit"]);
 458
 459                         $search = db_escape_string($_GET["q"]);
 460                         $match_on = db_escape_string($_GET["m"]);
 461                         $search_mode = db_escape_string($_GET["smode"]);
 462
 463                         if (!$_SESSION["uid"] && $user && $pass) {
 464                                 authenticate_user($link, $user, $pass);
 465                         }
 466
 467                         if ($_SESSION["uid"] ||
 468                                 http_authenticate_user($link)) {
 469
 470                                         generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
 471                                                 $search, $search_mode, $match_on);
 472                         }
 473                 break; // rss
 474
 475                 case "getUnread":
 476                         $login = db_escape_string($_GET["login"]);
 477
 478                         header("Content-Type: text/plain; charset=utf-8");
 479
 480                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
 481
 482                         if (db_num_rows($result) == 1) {
 483                                 $uid = db_fetch_result($result, 0, "id");
 484                                 print getGlobalUnread($link, $uid);
 485                         } else {
 486                                 print "-1;User not found";
 487                         }
 488
 489                         $print_exec_time = false;
 490                 break; // getUnread
 491
 492                 case "digestTest":
 493                         header("Content-Type: text/plain");
 494                         print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
 495                         $print_exec_time = false;
 496                 break; // digestTest
 497
 498                 case "digestSend":
 499                         header("Content-Type: text/plain");
 500                         send_headlines_digests($link);
 501                         $print_exec_time = false;
 502                 break; // digestSend
 503
 504         } // Select action according to $op value.
 505
 506         // We close the connection to database.
 507         db_close($link);
 508 ?>
 509
 510 <?php if ($print_exec_time) { ?>
 511 <!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
 512 <?php } ?>