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