classes/opml.php

   1 <?php
   2 class Opml extends Handler_Protected {
   3
   4         function csrf_ignore($method) {
   5                 $csrf_ignored = array("export", "import");
   6
   7                 return array_search($method, $csrf_ignored) !== false;
   8         }
   9
  10         function export() {
  11                 $output_name = $_REQUEST["filename"];
  12                 if (!$output_name) $output_name = "TinyTinyRSS.opml";
  13
  14                 $show_settings = $_REQUEST["settings"];
  15
  16                 $owner_uid = $_SESSION["uid"];
  17
  18                 $rc = $this->opml_export($output_name, $owner_uid, false, ($show_settings == 1));
  19
  20                 return $rc;
  21         }
  22
  23         function import() {
  24                 $owner_uid = $_SESSION["uid"];
  25
  26                 header('Content-Type: text/html; charset=utf-8');
  27
  28                 print "<html>
  29                         <head>
  30                                 <link rel=\"stylesheet\" href=\"css/utility.css\" type=\"text/css\">
  31                                 <title>".__("OPML Utility")."</title>
  32                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
  33                         </head>
  34                         <body>
  35                         <div class=\"floatingLogo\"><img src=\"images/logo_small.png\"></div>
  36                         <h1>".__('OPML Utility')."</h1><div class='content'>";
  37
  38                 add_feed_category("Imported feeds");
  39
  40                 $this->opml_notice(__("Importing OPML..."));
  41
  42                 $this->opml_import($owner_uid);
  43
  44                 print "<br><form method=\"GET\" action=\"prefs.php\">
  45                         <input type=\"submit\" value=\"".__("Return to preferences")."\">
  46                         </form>";
  47
  48                 print "</div></body></html>";
  49
  50
  51         }
  52
  53         // Export
  54
  55         private function opml_export_category($owner_uid, $cat_id, $hide_private_feeds=false) {
  56
  57                 $cat_id = (int) $cat_id;
  58
  59                 if ($hide_private_feeds)
  60                         $hide_qpart = "(private IS false AND auth_login = '' AND auth_pass = '')";
  61                 else
  62                         $hide_qpart = "true";
  63
  64                 $out = "";
  65
  66                 if ($cat_id) {
  67                         $sth = $this->pdo->prepare("SELECT title FROM ttrss_feed_categories WHERE id = ?
  68                                 AND owner_uid = ?");
  69                         $sth->execute([$cat_id, $owner_uid]);
  70                         $row = $sth->fetch();
  71                         $cat_title = htmlspecialchars($row['title']);
  72                 }
  73
  74                 if ($cat_title) $out .= "<outline text=\"$cat_title\">\n";
  75
  76                 $sth = $this->pdo->prepare("SELECT id,title
  77                         FROM ttrss_feed_categories WHERE
  78                                 (parent_cat = :cat OR (:cat = 0 AND parent_cat IS NULL)) AND
  79                                 owner_uid = :uid ORDER BY order_id, title");
  80
  81                 $sth->execute([':cat' => $cat_id, ':uid' => $owner_uid]);
  82
  83                 while ($line = $sth->fetch()) {
  84                         $out .= $this->opml_export_category($owner_uid, $line["id"], $hide_private_feeds);
  85                 }
  86
  87                 $fsth = $this->pdo->prepare("select title, feed_url, site_url
  88                                 FROM ttrss_feeds WHERE
  89                                         (cat_id = :cat OR (:cat = 0 AND cat_id IS NULL)) AND owner_uid = :uid AND $hide_qpart
  90                                 ORDER BY order_id, title");
  91
  92                 $fsth->execute([':cat' => $cat_id, ':uid' => $owner_uid]);
  93
  94                 while ($fline = $fsth->fetch()) {
  95                         $title = htmlspecialchars($fline["title"]);
  96                         $url = htmlspecialchars($fline["feed_url"]);
  97                         $site_url = htmlspecialchars($fline["site_url"]);
  98
  99                         if ($site_url) {
 100                                 $html_url_qpart = "htmlUrl=\"$site_url\"";
 101                         } else {
 102                                 $html_url_qpart = "";
 103                         }
 104
 105                         $out .= "<outline type=\"rss\" text=\"$title\" xmlUrl=\"$url\" $html_url_qpart/>\n";
 106                 }
 107
 108                 if ($cat_title) $out .= "</outline>\n";
 109
 110                 return $out;
 111         }
 112
 113         function opml_export($name, $owner_uid, $hide_private_feeds=false, $include_settings=true) {
 114                 if (!$owner_uid) return;
 115
 116                 if (!isset($_REQUEST["debug"])) {
 117                         header("Content-type: application/xml+opml");
 118                         header("Content-Disposition: attachment; filename=" . $name );
 119                 } else {
 120                         header("Content-type: text/xml");
 121                 }
 122
 123                 $out = "<?xml version=\"1.0\" encoding=\"utf-8\"?".">";
 124
 125                 $out .= "<opml version=\"1.0\">";
 126                 $out .= "<head>
 127                         <dateCreated>" . date("r", time()) . "</dateCreated>
 128                         <title>Tiny Tiny RSS Feed Export</title>
 129                 </head>";
 130                 $out .= "<body>";
 131
 132                 $out .= $this->opml_export_category($owner_uid, 0, $hide_private_feeds);
 133
 134                 # export tt-rss settings
 135
 136                 if ($include_settings) {
 137                         $out .= "<outline text=\"tt-rss-prefs\" schema-version=\"".SCHEMA_VERSION."\">";
 138
 139                         $sth = $this->pdo->prepare("SELECT pref_name, value FROM ttrss_user_prefs WHERE
 140                            profile IS NULL AND owner_uid = ? ORDER BY pref_name");
 141                         $sth->execute([$owner_uid]);
 142
 143                         while ($line = $sth->fetch()) {
 144                                 $name = $line["pref_name"];
 145                                 $value = htmlspecialchars($line["value"]);
 146
 147                                 $out .= "<outline pref-name=\"$name\" value=\"$value\"/>";
 148                         }
 149
 150                         $out .= "</outline>";
 151
 152                         $out .= "<outline text=\"tt-rss-labels\" schema-version=\"".SCHEMA_VERSION."\">";
 153
 154                         $sth = $this->pdo->prepare("SELECT * FROM ttrss_labels2 WHERE
 155                                 owner_uid = ?");
 156                         $sth->execute([$owner_uid]);
 157
 158                         while ($line = $sth->fetch()) {
 159                                 $name = htmlspecialchars($line['caption']);
 160                                 $fg_color = htmlspecialchars($line['fg_color']);
 161                                 $bg_color = htmlspecialchars($line['bg_color']);
 162
 163                                 $out .= "<outline label-name=\"$name\" label-fg-color=\"$fg_color\" label-bg-color=\"$bg_color\"/>";
 164
 165                         }
 166
 167                         $out .= "</outline>";
 168
 169                         $out .= "<outline text=\"tt-rss-filters\" schema-version=\"".SCHEMA_VERSION."\">";
 170
 171                         $sth = $this->pdo->prepare("SELECT * FROM ttrss_filters2
 172                                 WHERE owner_uid = ? ORDER BY id");
 173                         $sth->execute([$owner_uid]);
 174
 175                         while ($line = $sth->fetch()) {
 176                                 foreach (array('enabled', 'match_any_rule', 'inverse') as $b) {
 177                                         $line[$b] = sql_bool_to_bool($line[$b]);
 178                                 }
 179
 180                                 $line["rules"] = array();
 181                                 $line["actions"] = array();
 182
 183                                 $tmph = $this->pdo->prepare("SELECT * FROM ttrss_filters2_rules
 184                                         WHERE filter_id = ?");
 185                                 $tmph->execute([$line['id']]);
 186
 187                                 while ($tmp_line = $tmph->fetch()) {
 188                                         unset($tmp_line["id"]);
 189                                         unset($tmp_line["filter_id"]);
 190
 191                                         $cat_filter = sql_bool_to_bool($tmp_line["cat_filter"]);
 192
 193                                         if (!$tmp_line["match_on"]) {
 194                         if ($cat_filter && $tmp_line["cat_id"] || $tmp_line["feed_id"]) {
 195                             $tmp_line["feed"] = Feeds::getFeedTitle(
 196                                 $cat_filter ? $tmp_line["cat_id"] : $tmp_line["feed_id"],
 197                                 $cat_filter);
 198                         } else {
 199                             $tmp_line["feed"] = "";
 200                         }
 201                     } else {
 202                                             $match = [];
 203                                             foreach (json_decode($tmp_line["match_on"], true) as $feed_id) {
 204
 205                             if (strpos($feed_id, "CAT:") === 0) {
 206                                 $feed_id = (int)substr($feed_id, 4);
 207                                 if ($feed_id) {
 208                                     array_push($match, [Feeds::getCategoryTitle($feed_id), true, false]);
 209                                 } else {
 210                                     array_push($match, [0, true, true]);
 211                                 }
 212                             } else {
 213                                 if ($feed_id) {
 214                                     array_push($match, [Feeds::getFeedTitle((int)$feed_id), false, false]);
 215                                 } else {
 216                                     array_push($match, [0, false, true]);
 217                                 }
 218                             }
 219                         }
 220
 221                         $tmp_line["match"] = $match;
 222                                             unset($tmp_line["match_on"]);
 223                     }
 224
 225                                         $tmp_line["cat_filter"] = sql_bool_to_bool($tmp_line["cat_filter"]);
 226                                         $tmp_line["inverse"] = sql_bool_to_bool($tmp_line["inverse"]);
 227
 228                                         unset($tmp_line["feed_id"]);
 229                                         unset($tmp_line["cat_id"]);
 230
 231                                         array_push($line["rules"], $tmp_line);
 232                                 }
 233
 234                                 $tmph = $this->pdo->prepare("SELECT * FROM ttrss_filters2_actions
 235                                         WHERE filter_id = ?");
 236                                 $tmph->execute([$line['id']]);
 237
 238                                 while ($tmp_line = $tmph->fetch()) {
 239                                         unset($tmp_line["id"]);
 240                                         unset($tmp_line["filter_id"]);
 241
 242                                         array_push($line["actions"], $tmp_line);
 243                                 }
 244
 245                                 unset($line["id"]);
 246                                 unset($line["owner_uid"]);
 247                                 $filter = json_encode($line);
 248
 249                                 $out .= "<outline filter-type=\"2\"><![CDATA[$filter]]></outline>";
 250
 251                         }
 252
 253
 254                         $out .= "</outline>";
 255                 }
 256
 257                 $out .= "</body></opml>";
 258
 259                 // Format output.
 260                 $doc = new DOMDocument();
 261                 $doc->formatOutput = true;
 262                 $doc->preserveWhiteSpace = false;
 263                 $doc->loadXML($out);
 264
 265                 $xpath = new DOMXpath($doc);
 266                 $outlines = $xpath->query("//outline[@title]");
 267
 268                 // cleanup empty categories
 269                 foreach ($outlines as $node) {
 270                         if ($node->getElementsByTagName('outline')->length == 0)
 271                                 $node->parentNode->removeChild($node);
 272                 }
 273
 274                 $res = $doc->saveXML();
 275
 276 /*              // saveXML uses a two-space indent.  Change to tabs.
 277                 $res = preg_replace_callback('/^(?:  )+/mu',
 278                         create_function(
 279                                 '$matches',
 280                                 'return str_repeat("\t", intval(strlen($matches[0])/2));'),
 281                         $res); */
 282
 283                 print $res;
 284         }
 285
 286         // Import
 287
 288         private function opml_import_feed($node, $cat_id, $owner_uid) {
 289                 $attrs = $node->attributes;
 290
 291                 $feed_title = mb_substr($attrs->getNamedItem('text')->nodeValue, 0, 250);
 292                 if (!$feed_title) $feed_title = mb_substr($attrs->getNamedItem('title')->nodeValue, 0, 250);
 293
 294                 $feed_url = $attrs->getNamedItem('xmlUrl')->nodeValue;
 295                 if (!$feed_url) $feed_url = $attrs->getNamedItem('xmlURL')->nodeValue;
 296
 297                 $site_url = mb_substr($attrs->getNamedItem('htmlUrl')->nodeValue, 0, 250);
 298
 299                 if ($feed_url && $feed_title) {
 300                         $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE
 301                                 feed_url = ? AND owner_uid = ?");
 302                         $sth->execute([$feed_url, $owner_uid]);
 303
 304                         if (!$sth->fetch()) {
 305                                 #$this->opml_notice("[FEED] [$feed_title/$feed_url] dst_CAT=$cat_id");
 306                                 $this->opml_notice(T_sprintf("Adding feed: %s", $feed_title));
 307
 308                                 if (!$cat_id) $cat_id = null;
 309
 310                                 $sth = $this->pdo->prepare("INSERT INTO ttrss_feeds
 311                                         (title, feed_url, owner_uid, cat_id, site_url, order_id) VALUES
 312                                         (?, ?, ?, ?, ?, 0)");
 313
 314                                 $sth->execute([$feed_title, $feed_url, $owner_uid, $cat_id, $site_url]);
 315
 316                         } else {
 317                                 $this->opml_notice(T_sprintf("Duplicate feed: %s", $feed_title));
 318                         }
 319                 }
 320         }
 321
 322         private function opml_import_label($node, $owner_uid) {
 323                 $attrs = $node->attributes;
 324                 $label_name = $attrs->getNamedItem('label-name')->nodeValue;
 325
 326                 if ($label_name) {
 327                         $fg_color = $attrs->getNamedItem('label-fg-color')->nodeValue;
 328                         $bg_color = $attrs->getNamedItem('label-bg-color')->nodeValue;
 329
 330                         if (!Labels::find_id($label_name, $_SESSION['uid'])) {
 331                                 $this->opml_notice(T_sprintf("Adding label %s", htmlspecialchars($label_name)));
 332                                 Labels::create($label_name, $fg_color, $bg_color, $owner_uid);
 333                         } else {
 334                                 $this->opml_notice(T_sprintf("Duplicate label: %s", htmlspecialchars($label_name)));
 335                         }
 336                 }
 337         }
 338
 339         private function opml_import_preference($node) {
 340                 $attrs = $node->attributes;
 341                 $pref_name = $attrs->getNamedItem('pref-name')->nodeValue;
 342
 343                 if ($pref_name) {
 344                         $pref_value = $attrs->getNamedItem('value')->nodeValue;
 345
 346                         $this->opml_notice(T_sprintf("Setting preference key %s to %s",
 347                                 $pref_name, $pref_value));
 348
 349                         set_pref($pref_name, $pref_value);
 350                 }
 351         }
 352
 353         private function opml_import_filter($node) {
 354                 $attrs = $node->attributes;
 355
 356                 $filter_type = $attrs->getNamedItem('filter-type')->nodeValue;
 357
 358                 if ($filter_type == '2') {
 359                         $filter = json_decode($node->nodeValue, true);
 360
 361                         if ($filter) {
 362                                 $match_any_rule = bool_to_sql_bool($filter["match_any_rule"]);
 363                                 $enabled = bool_to_sql_bool($filter["enabled"]);
 364                                 $inverse = bool_to_sql_bool($filter["inverse"]);
 365                                 $title = $filter["title"];
 366
 367                                 $sth = $this->pdo->prepare("INSERT INTO ttrss_filters2 (match_any_rule,enabled,inverse,title,owner_uid)
 368                                         VALUES (?, ?, ?, ?, ?)");
 369
 370                                 $sth->execute([$match_any_rule, $enabled, $inverse, $title, $_SESSION['uid']]);
 371
 372                                 $sth = $this->pdo->prepare("SELECT MAX(id) AS id FROM ttrss_filters2 WHERE
 373                                         owner_uid = ?");
 374                                 $sth->execute([$_SESSION['uid']]);
 375
 376                                 $row = $sth->fetch();
 377                                 $filter_id = $row['id'];
 378
 379                                 if ($filter_id) {
 380                                         $this->opml_notice(T_sprintf("Adding filter..."));
 381
 382                                         foreach ($filter["rules"] as $rule) {
 383                                                 $feed_id = null;
 384                                                 $cat_id = null;
 385
 386                                                 if ($rule["match"]) {
 387
 388                             $match_on = [];
 389
 390                                                     foreach ($rule["match"] as $match) {
 391                                                         list ($name, $is_cat, $is_id) = $match;
 392
 393                                                         if ($is_id) {
 394                                                             array_push($match_on, ($is_cat ? "CAT:" : "") . $name);
 395                                 } else {
 396
 397                                                             $match_id = false;
 398
 399                                     if (!$is_cat) {
 400                                         $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feeds
 401                                                 WHERE title = ? AND owner_uid = ?");
 402
 403                                         $tsth->execute([$name, $_SESSION['uid']]);
 404
 405                                         if ($row = $tsth->fetch()) {
 406                                             $match_id = $row['id'];
 407                                         }
 408                                     } else {
 409                                         $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feed_categories
 410                                                 WHERE title = ? AND owner_uid = ?");
 411                                                                                 $tsth->execute([$name, $_SESSION['uid']]);
 412
 413                                                                                 if ($row = $tsth->fetch()) {
 414                                                                                         $match_id = $row['id'];
 415                                                                                 }
 416                                     }
 417
 418                                     if ($match_id) array_push($match_on, $match_id);
 419                                 }
 420                             }
 421
 422                             $reg_exp = $rule["reg_exp"];
 423                             $filter_type = (int)$rule["filter_type"];
 424                             $inverse = bool_to_sql_bool($rule["inverse"]);
 425                             $match_on = json_encode($match_on);
 426
 427                             $usth = $this->pdo->prepare("INSERT INTO ttrss_filters2_rules
 428                                                                 (feed_id,cat_id,match_on,filter_id,filter_type,reg_exp,cat_filter,inverse)
 429                                 VALUES
 430                                 (NULL, NULL, ?, ?, ?, ?, false, ?)");
 431                             $usth->execute([$match_on, $filter_id, $filter_type, $reg_exp, $inverse]);
 432
 433                         } else {
 434
 435                             if (!$rule["cat_filter"]) {
 436                                 $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feeds
 437                                     WHERE title = ? AND owner_uid = ?");
 438
 439                                 $tsth->execute([$rule['feed'], $_SESSION['uid']]);
 440
 441                                 if ($row = $tsth->fetch()) {
 442                                     $feed_id = $row['id'];
 443                                 }
 444                             } else {
 445                                                                 $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feed_categories
 446                                     WHERE title = ? AND owner_uid = ?");
 447
 448                                                                 $tsth->execute([$rule['feed'], $_SESSION['uid']]);
 449
 450                                                                 if ($row = $tsth->fetch()) {
 451                                                                         $feed_id = $row['id'];
 452                                                                 }
 453                             }
 454
 455                             $cat_filter = bool_to_sql_bool($rule["cat_filter"]);
 456                             $reg_exp = $rule["reg_exp"];
 457                             $filter_type = (int)$rule["filter_type"];
 458                             $inverse = bool_to_sql_bool($rule["inverse"]);
 459
 460                             $usth = $this->pdo->prepare("INSERT INTO ttrss_filters2_rules
 461                                                                 (feed_id,cat_id,filter_id,filter_type,reg_exp,cat_filter,inverse)
 462                                 VALUES
 463                                 (?, ?, ?, ?, ?, ?, ?)");
 464                             $usth->execute([$feed_id, $cat_id, $filter_id, $filter_type, $reg_exp, $cat_filter, $inverse]);
 465                         }
 466                                         }
 467
 468                                         foreach ($filter["actions"] as $action) {
 469
 470                                                 $action_id = (int)$action["action_id"];
 471                                                 $action_param = $action["action_param"];
 472
 473                                                 $usth = $this->pdo->prepare("INSERT INTO ttrss_filters2_actions
 474                                                         (filter_id,action_id,action_param)
 475                                                         VALUES
 476                                                         (?, ?, ?)");
 477                                                 $usth->execute([$filter_id, $action_id, $action_param]);
 478                                         }
 479                                 }
 480                         }
 481                 }
 482         }
 483
 484         private function opml_import_category($doc, $root_node, $owner_uid, $parent_id) {
 485                 $default_cat_id = (int) $this->get_feed_category('Imported feeds', false);
 486
 487                 if ($root_node) {
 488                         $cat_title = mb_substr($root_node->attributes->getNamedItem('text')->nodeValue, 0, 250);
 489
 490                         if (!$cat_title)
 491                                 $cat_title = mb_substr($root_node->attributes->getNamedItem('title')->nodeValue, 0, 250);
 492
 493                         if (!in_array($cat_title, array("tt-rss-filters", "tt-rss-labels", "tt-rss-prefs"))) {
 494                                 $cat_id = $this->get_feed_category($cat_title, $parent_id);
 495
 496                                 if ($cat_id === false) {
 497                                         add_feed_category($cat_title, $parent_id);
 498                                         $cat_id = $this->get_feed_category($cat_title, $parent_id);
 499                                 }
 500
 501                         } else {
 502                                 $cat_id = 0;
 503                         }
 504
 505                         $outlines = $root_node->childNodes;
 506
 507                 } else {
 508                         $xpath = new DOMXpath($doc);
 509                         $outlines = $xpath->query("//opml/body/outline");
 510
 511                         $cat_id = 0;
 512                 }
 513
 514                 #$this->opml_notice("[CAT] $cat_title id: $cat_id P_id: $parent_id");
 515                 $this->opml_notice(T_sprintf("Processing category: %s", $cat_title ? $cat_title : __("Uncategorized")));
 516
 517                 foreach ($outlines as $node) {
 518                         if ($node->hasAttributes() && strtolower($node->tagName) == "outline") {
 519                                 $attrs = $node->attributes;
 520                                 $node_cat_title = $attrs->getNamedItem('text')->nodeValue;
 521
 522                                 if (!$node_cat_title)
 523                                         $node_cat_title = $attrs->getNamedItem('title')->nodeValue;
 524
 525                                 $node_feed_url = $attrs->getNamedItem('xmlUrl')->nodeValue;
 526
 527                                 if ($node_cat_title && !$node_feed_url) {
 528                                         $this->opml_import_category($doc, $node, $owner_uid, $cat_id);
 529                                 } else {
 530
 531                                         if (!$cat_id) {
 532                                                 $dst_cat_id = $default_cat_id;
 533                                         } else {
 534                                                 $dst_cat_id = $cat_id;
 535                                         }
 536
 537                                         switch ($cat_title) {
 538                                         case "tt-rss-prefs":
 539                                                 $this->opml_import_preference($node);
 540                                                 break;
 541                                         case "tt-rss-labels":
 542                                                 $this->opml_import_label($node, $owner_uid);
 543                                                 break;
 544                                         case "tt-rss-filters":
 545                                                 $this->opml_import_filter($node);
 546                                                 break;
 547                                         default:
 548                                                 $this->opml_import_feed($node, $dst_cat_id, $owner_uid);
 549                                         }
 550                                 }
 551                         }
 552                 }
 553         }
 554
 555         function opml_import($owner_uid) {
 556                 if (!$owner_uid) return;
 557
 558                 $doc = false;
 559
 560                 if ($_FILES['opml_file']['error'] != 0) {
 561                         print_error(T_sprintf("Upload failed with error code %d",
 562                                 $_FILES['opml_file']['error']));
 563                         return;
 564                 }
 565
 566                 if (is_uploaded_file($_FILES['opml_file']['tmp_name'])) {
 567                         $tmp_file = tempnam(CACHE_DIR . '/upload', 'opml');
 568
 569                         $result = move_uploaded_file($_FILES['opml_file']['tmp_name'],
 570                                 $tmp_file);
 571
 572                         if (!$result) {
 573                                 print_error(__("Unable to move uploaded file."));
 574                                 return;
 575                         }
 576                 } else {
 577                         print_error(__('Error: please upload OPML file.'));
 578                         return;
 579                 }
 580
 581                 if (is_file($tmp_file)) {
 582                         $doc = new DOMDocument();
 583                         libxml_disable_entity_loader(false);
 584                         $doc->load($tmp_file);
 585                         libxml_disable_entity_loader(true);
 586                         unlink($tmp_file);
 587                 } else if (!$doc) {
 588                         print_error(__('Error: unable to find moved OPML file.'));
 589                         return;
 590                 }
 591
 592                 if ($doc) {
 593                         $this->pdo->beginTransaction();
 594                         $this->opml_import_category($doc, false, $owner_uid, false);
 595                         $this->pdo->commit();
 596                 } else {
 597                         print_error(__('Error while parsing document.'));
 598                 }
 599         }
 600
 601         private function opml_notice($msg) {
 602                 print "$msg<br/>";
 603         }
 604
 605         static function opml_publish_url(){
 606
 607                 $url_path = get_self_url_prefix();
 608                 $url_path .= "/opml.php?op=publish&key=" .
 609                         get_feed_access_key('OPML:Publish', false, $_SESSION["uid"]);
 610
 611                 return $url_path;
 612         }
 613
 614         function get_feed_category($feed_cat, $parent_cat_id = false) {
 615
 616                 $parent_cat_id = (int) $parent_cat_id;
 617
 618                 $sth = $this->pdo->prepare("SELECT id FROM ttrss_feed_categories
 619                         WHERE title = :title
 620                         AND (parent_cat = :parent OR (:parent = 0 AND parent_cat IS NULL))
 621                         AND owner_uid = :uid");
 622
 623                 $sth->execute([':title' => $feed_cat, ':parent' => $parent_cat_id, ':uid' => $_SESSION['uid']]);
 624
 625                 if ($row = $sth->fetch()) {
 626                         return $row['id'];
 627                 } else {
 628                         return false;
 629                 }
 630         }
 631
 632
 633 }