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                                 ".stylesheet_tag("css/default.css")."
  31                                 <title>".__("OPML Utility")."</title>
  32                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
  33                         </head>
  34                         <body class='claro ttrss_utility'>
  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                                 $line["rules"] = array();
 177                                 $line["actions"] = array();
 178
 179                                 $tmph = $this->pdo->prepare("SELECT * FROM ttrss_filters2_rules
 180                                         WHERE filter_id = ?");
 181                                 $tmph->execute([$line['id']]);
 182
 183                                 while ($tmp_line = $tmph->fetch()) {
 184                                         unset($tmp_line["id"]);
 185                                         unset($tmp_line["filter_id"]);
 186
 187                                         $cat_filter = $tmp_line["cat_filter"];
 188
 189                                         if (!$tmp_line["match_on"]) {
 190                         if ($cat_filter && $tmp_line["cat_id"] || $tmp_line["feed_id"]) {
 191                             $tmp_line["feed"] = Feeds::getFeedTitle(
 192                                 $cat_filter ? $tmp_line["cat_id"] : $tmp_line["feed_id"],
 193                                 $cat_filter);
 194                         } else {
 195                             $tmp_line["feed"] = "";
 196                         }
 197                     } else {
 198                                             $match = [];
 199                                             foreach (json_decode($tmp_line["match_on"], true) as $feed_id) {
 200
 201                             if (strpos($feed_id, "CAT:") === 0) {
 202                                 $feed_id = (int)substr($feed_id, 4);
 203                                 if ($feed_id) {
 204                                     array_push($match, [Feeds::getCategoryTitle($feed_id), true, false]);
 205                                 } else {
 206                                     array_push($match, [0, true, true]);
 207                                 }
 208                             } else {
 209                                 if ($feed_id) {
 210                                     array_push($match, [Feeds::getFeedTitle((int)$feed_id), false, false]);
 211                                 } else {
 212                                     array_push($match, [0, false, true]);
 213                                 }
 214                             }
 215                         }
 216
 217                         $tmp_line["match"] = $match;
 218                                             unset($tmp_line["match_on"]);
 219                     }
 220
 221                                         unset($tmp_line["feed_id"]);
 222                                         unset($tmp_line["cat_id"]);
 223
 224                                         array_push($line["rules"], $tmp_line);
 225                                 }
 226
 227                                 $tmph = $this->pdo->prepare("SELECT * FROM ttrss_filters2_actions
 228                                         WHERE filter_id = ?");
 229                                 $tmph->execute([$line['id']]);
 230
 231                                 while ($tmp_line = $tmph->fetch()) {
 232                                         unset($tmp_line["id"]);
 233                                         unset($tmp_line["filter_id"]);
 234
 235                                         array_push($line["actions"], $tmp_line);
 236                                 }
 237
 238                                 unset($line["id"]);
 239                                 unset($line["owner_uid"]);
 240                                 $filter = json_encode($line);
 241
 242                                 $out .= "<outline filter-type=\"2\"><![CDATA[$filter]]></outline>";
 243
 244                         }
 245
 246
 247                         $out .= "</outline>";
 248                 }
 249
 250                 $out .= "</body></opml>";
 251
 252                 // Format output.
 253                 $doc = new DOMDocument();
 254                 $doc->formatOutput = true;
 255                 $doc->preserveWhiteSpace = false;
 256                 $doc->loadXML($out);
 257
 258                 $xpath = new DOMXpath($doc);
 259                 $outlines = $xpath->query("//outline[@title]");
 260
 261                 // cleanup empty categories
 262                 foreach ($outlines as $node) {
 263                         if ($node->getElementsByTagName('outline')->length == 0)
 264                                 $node->parentNode->removeChild($node);
 265                 }
 266
 267                 $res = $doc->saveXML();
 268
 269 /*              // saveXML uses a two-space indent.  Change to tabs.
 270                 $res = preg_replace_callback('/^(?:  )+/mu',
 271                         create_function(
 272                                 '$matches',
 273                                 'return str_repeat("\t", intval(strlen($matches[0])/2));'),
 274                         $res); */
 275
 276                 print $res;
 277         }
 278
 279         // Import
 280
 281         private function opml_import_feed($node, $cat_id, $owner_uid) {
 282                 $attrs = $node->attributes;
 283
 284                 $feed_title = mb_substr($attrs->getNamedItem('text')->nodeValue, 0, 250);
 285                 if (!$feed_title) $feed_title = mb_substr($attrs->getNamedItem('title')->nodeValue, 0, 250);
 286
 287                 $feed_url = $attrs->getNamedItem('xmlUrl')->nodeValue;
 288                 if (!$feed_url) $feed_url = $attrs->getNamedItem('xmlURL')->nodeValue;
 289
 290                 $site_url = mb_substr($attrs->getNamedItem('htmlUrl')->nodeValue, 0, 250);
 291
 292                 if ($feed_url && $feed_title) {
 293                         $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE
 294                                 feed_url = ? AND owner_uid = ?");
 295                         $sth->execute([$feed_url, $owner_uid]);
 296
 297                         if (!$sth->fetch()) {
 298                                 #$this->opml_notice("[FEED] [$feed_title/$feed_url] dst_CAT=$cat_id");
 299                                 $this->opml_notice(T_sprintf("Adding feed: %s", $feed_title));
 300
 301                                 if (!$cat_id) $cat_id = null;
 302
 303                                 $sth = $this->pdo->prepare("INSERT INTO ttrss_feeds
 304                                         (title, feed_url, owner_uid, cat_id, site_url, order_id) VALUES
 305                                         (?, ?, ?, ?, ?, 0)");
 306
 307                                 $sth->execute([$feed_title, $feed_url, $owner_uid, $cat_id, $site_url]);
 308
 309                         } else {
 310                                 $this->opml_notice(T_sprintf("Duplicate feed: %s", $feed_title));
 311                         }
 312                 }
 313         }
 314
 315         private function opml_import_label($node, $owner_uid) {
 316                 $attrs = $node->attributes;
 317                 $label_name = $attrs->getNamedItem('label-name')->nodeValue;
 318
 319                 if ($label_name) {
 320                         $fg_color = $attrs->getNamedItem('label-fg-color')->nodeValue;
 321                         $bg_color = $attrs->getNamedItem('label-bg-color')->nodeValue;
 322
 323                         if (!Labels::find_id($label_name, $_SESSION['uid'])) {
 324                                 $this->opml_notice(T_sprintf("Adding label %s", htmlspecialchars($label_name)));
 325                                 Labels::create($label_name, $fg_color, $bg_color, $owner_uid);
 326                         } else {
 327                                 $this->opml_notice(T_sprintf("Duplicate label: %s", htmlspecialchars($label_name)));
 328                         }
 329                 }
 330         }
 331
 332         private function opml_import_preference($node) {
 333                 $attrs = $node->attributes;
 334                 $pref_name = $attrs->getNamedItem('pref-name')->nodeValue;
 335
 336                 if ($pref_name) {
 337                         $pref_value = $attrs->getNamedItem('value')->nodeValue;
 338
 339                         $this->opml_notice(T_sprintf("Setting preference key %s to %s",
 340                                 $pref_name, $pref_value));
 341
 342                         set_pref($pref_name, $pref_value);
 343                 }
 344         }
 345
 346         private function opml_import_filter($node) {
 347                 $attrs = $node->attributes;
 348
 349                 $filter_type = $attrs->getNamedItem('filter-type')->nodeValue;
 350
 351                 if ($filter_type == '2') {
 352                         $filter = json_decode($node->nodeValue, true);
 353
 354                         if ($filter) {
 355                                 $match_any_rule = bool_to_sql_bool($filter["match_any_rule"]);
 356                                 $enabled = bool_to_sql_bool($filter["enabled"]);
 357                                 $inverse = bool_to_sql_bool($filter["inverse"]);
 358                                 $title = $filter["title"];
 359
 360                                 print "F: $title, $inverse, $enabled, $match_any_rule";
 361
 362                                 $sth = $this->pdo->prepare("INSERT INTO ttrss_filters2 (match_any_rule,enabled,inverse,title,owner_uid)
 363                                         VALUES (?, ?, ?, ?, ?)");
 364
 365                                 $sth->execute([$match_any_rule, $enabled, $inverse, $title, $_SESSION['uid']]);
 366
 367                                 $sth = $this->pdo->prepare("SELECT MAX(id) AS id FROM ttrss_filters2 WHERE
 368                                         owner_uid = ?");
 369                                 $sth->execute([$_SESSION['uid']]);
 370
 371                                 $row = $sth->fetch();
 372                                 $filter_id = $row['id'];
 373
 374                                 if ($filter_id) {
 375                                         $this->opml_notice(T_sprintf("Adding filter..."));
 376
 377                                         foreach ($filter["rules"] as $rule) {
 378                                                 $feed_id = null;
 379                                                 $cat_id = null;
 380
 381                                                 if ($rule["match"]) {
 382
 383                             $match_on = [];
 384
 385                                                     foreach ($rule["match"] as $match) {
 386                                                         list ($name, $is_cat, $is_id) = $match;
 387
 388                                                         if ($is_id) {
 389                                                             array_push($match_on, ($is_cat ? "CAT:" : "") . $name);
 390                                 } else {
 391
 392                                                             $match_id = false;
 393
 394                                     if (!$is_cat) {
 395                                         $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feeds
 396                                                 WHERE title = ? AND owner_uid = ?");
 397
 398                                         $tsth->execute([$name, $_SESSION['uid']]);
 399
 400                                         if ($row = $tsth->fetch()) {
 401                                             $match_id = $row['id'];
 402                                         }
 403                                     } else {
 404                                         $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feed_categories
 405                                                 WHERE title = ? AND owner_uid = ?");
 406                                                                                 $tsth->execute([$name, $_SESSION['uid']]);
 407
 408                                                                                 if ($row = $tsth->fetch()) {
 409                                                                                         $match_id = $row['id'];
 410                                                                                 }
 411                                     }
 412
 413                                     if ($match_id) array_push($match_on, $match_id);
 414                                 }
 415                             }
 416
 417                             $reg_exp = $rule["reg_exp"];
 418                             $filter_type = (int)$rule["filter_type"];
 419                             $inverse = bool_to_sql_bool($rule["inverse"]);
 420                             $match_on = json_encode($match_on);
 421
 422                             $usth = $this->pdo->prepare("INSERT INTO ttrss_filters2_rules
 423                                                                 (feed_id,cat_id,match_on,filter_id,filter_type,reg_exp,cat_filter,inverse)
 424                                 VALUES
 425                                 (NULL, NULL, ?, ?, ?, ?, false, ?)");
 426                             $usth->execute([$match_on, $filter_id, $filter_type, $reg_exp, $inverse]);
 427
 428                         } else {
 429
 430                             if (!$rule["cat_filter"]) {
 431                                 $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feeds
 432                                     WHERE title = ? AND owner_uid = ?");
 433
 434                                 $tsth->execute([$rule['feed'], $_SESSION['uid']]);
 435
 436                                 if ($row = $tsth->fetch()) {
 437                                     $feed_id = $row['id'];
 438                                 }
 439                             } else {
 440                                                                 $tsth = $this->pdo->prepare("SELECT id FROM ttrss_feed_categories
 441                                     WHERE title = ? AND owner_uid = ?");
 442
 443                                                                 $tsth->execute([$rule['feed'], $_SESSION['uid']]);
 444
 445                                                                 if ($row = $tsth->fetch()) {
 446                                                                         $feed_id = $row['id'];
 447                                                                 }
 448                             }
 449
 450                             $cat_filter = bool_to_sql_bool($rule["cat_filter"]);
 451                             $reg_exp = $rule["reg_exp"];
 452                             $filter_type = (int)$rule["filter_type"];
 453                             $inverse = bool_to_sql_bool($rule["inverse"]);
 454
 455                             $usth = $this->pdo->prepare("INSERT INTO ttrss_filters2_rules
 456                                                                 (feed_id,cat_id,filter_id,filter_type,reg_exp,cat_filter,inverse)
 457                                 VALUES
 458                                 (?, ?, ?, ?, ?, ?, ?)");
 459                             $usth->execute([$feed_id, $cat_id, $filter_id, $filter_type, $reg_exp, $cat_filter, $inverse]);
 460                         }
 461                                         }
 462
 463                                         foreach ($filter["actions"] as $action) {
 464
 465                                                 $action_id = (int)$action["action_id"];
 466                                                 $action_param = $action["action_param"];
 467
 468                                                 $usth = $this->pdo->prepare("INSERT INTO ttrss_filters2_actions
 469                                                         (filter_id,action_id,action_param)
 470                                                         VALUES
 471                                                         (?, ?, ?)");
 472                                                 $usth->execute([$filter_id, $action_id, $action_param]);
 473                                         }
 474                                 }
 475                         }
 476                 }
 477         }
 478
 479         private function opml_import_category($doc, $root_node, $owner_uid, $parent_id) {
 480                 $default_cat_id = (int) $this->get_feed_category('Imported feeds', false);
 481
 482                 if ($root_node) {
 483                         $cat_title = mb_substr($root_node->attributes->getNamedItem('text')->nodeValue, 0, 250);
 484
 485                         if (!$cat_title)
 486                                 $cat_title = mb_substr($root_node->attributes->getNamedItem('title')->nodeValue, 0, 250);
 487
 488                         if (!in_array($cat_title, array("tt-rss-filters", "tt-rss-labels", "tt-rss-prefs"))) {
 489                                 $cat_id = $this->get_feed_category($cat_title, $parent_id);
 490
 491                                 if ($cat_id === false) {
 492                                         add_feed_category($cat_title, $parent_id);
 493                                         $cat_id = $this->get_feed_category($cat_title, $parent_id);
 494                                 }
 495
 496                         } else {
 497                                 $cat_id = 0;
 498                         }
 499
 500                         $outlines = $root_node->childNodes;
 501
 502                 } else {
 503                         $xpath = new DOMXpath($doc);
 504                         $outlines = $xpath->query("//opml/body/outline");
 505
 506                         $cat_id = 0;
 507                 }
 508
 509                 #$this->opml_notice("[CAT] $cat_title id: $cat_id P_id: $parent_id");
 510                 $this->opml_notice(T_sprintf("Processing category: %s", $cat_title ? $cat_title : __("Uncategorized")));
 511
 512                 foreach ($outlines as $node) {
 513                         if ($node->hasAttributes() && strtolower($node->tagName) == "outline") {
 514                                 $attrs = $node->attributes;
 515                                 $node_cat_title = $attrs->getNamedItem('text')->nodeValue;
 516
 517                                 if (!$node_cat_title)
 518                                         $node_cat_title = $attrs->getNamedItem('title')->nodeValue;
 519
 520                                 $node_feed_url = $attrs->getNamedItem('xmlUrl')->nodeValue;
 521
 522                                 if ($node_cat_title && !$node_feed_url) {
 523                                         $this->opml_import_category($doc, $node, $owner_uid, $cat_id);
 524                                 } else {
 525
 526                                         if (!$cat_id) {
 527                                                 $dst_cat_id = $default_cat_id;
 528                                         } else {
 529                                                 $dst_cat_id = $cat_id;
 530                                         }
 531
 532                                         switch ($cat_title) {
 533                                         case "tt-rss-prefs":
 534                                                 $this->opml_import_preference($node);
 535                                                 break;
 536                                         case "tt-rss-labels":
 537                                                 $this->opml_import_label($node, $owner_uid);
 538                                                 break;
 539                                         case "tt-rss-filters":
 540                                                 $this->opml_import_filter($node);
 541                                                 break;
 542                                         default:
 543                                                 $this->opml_import_feed($node, $dst_cat_id, $owner_uid);
 544                                         }
 545                                 }
 546                         }
 547                 }
 548         }
 549
 550         function opml_import($owner_uid) {
 551                 if (!$owner_uid) return;
 552
 553                 $doc = false;
 554
 555                 if ($_FILES['opml_file']['error'] != 0) {
 556                         print_error(T_sprintf("Upload failed with error code %d",
 557                                 $_FILES['opml_file']['error']));
 558                         return;
 559                 }
 560
 561                 if (is_uploaded_file($_FILES['opml_file']['tmp_name'])) {
 562                         $tmp_file = tempnam(CACHE_DIR . '/upload', 'opml');
 563
 564                         $result = move_uploaded_file($_FILES['opml_file']['tmp_name'],
 565                                 $tmp_file);
 566
 567                         if (!$result) {
 568                                 print_error(__("Unable to move uploaded file."));
 569                                 return;
 570                         }
 571                 } else {
 572                         print_error(__('Error: please upload OPML file.'));
 573                         return;
 574                 }
 575
 576                 if (is_file($tmp_file)) {
 577                         $doc = new DOMDocument();
 578                         libxml_disable_entity_loader(false);
 579                         $doc->load($tmp_file);
 580                         libxml_disable_entity_loader(true);
 581                         unlink($tmp_file);
 582                 } else if (!$doc) {
 583                         print_error(__('Error: unable to find moved OPML file.'));
 584                         return;
 585                 }
 586
 587                 if ($doc) {
 588                         $this->pdo->beginTransaction();
 589                         $this->opml_import_category($doc, false, $owner_uid, false);
 590                         $this->pdo->commit();
 591                 } else {
 592                         print_error(__('Error while parsing document.'));
 593                 }
 594         }
 595
 596         private function opml_notice($msg) {
 597                 print "$msg<br/>";
 598         }
 599
 600         static function opml_publish_url(){
 601
 602                 $url_path = get_self_url_prefix();
 603                 $url_path .= "/opml.php?op=publish&key=" .
 604                         get_feed_access_key('OPML:Publish', false, $_SESSION["uid"]);
 605
 606                 return $url_path;
 607         }
 608
 609         function get_feed_category($feed_cat, $parent_cat_id = false) {
 610
 611                 $parent_cat_id = (int) $parent_cat_id;
 612
 613                 $sth = $this->pdo->prepare("SELECT id FROM ttrss_feed_categories
 614                         WHERE title = :title
 615                         AND (parent_cat = :parent OR (:parent = 0 AND parent_cat IS NULL))
 616                         AND owner_uid = :uid");
 617
 618                 $sth->execute([':title' => $feed_cat, ':parent' => $parent_cat_id, ':uid' => $_SESSION['uid']]);
 619
 620                 if ($row = $sth->fetch()) {
 621                         return $row['id'];
 622                 } else {
 623                         return false;
 624                 }
 625         }
 626
 627
 628 }