wp-admin/import/livejournal.php

   1 <?php
   2
   3 class LJ_Import {
   4
   5         var $file;
   6
   7         function header() {
   8                 echo '<div class="wrap">';
   9                 echo '<h2>'.__('Import LiveJournal').'</h2>';
  10         }
  11
  12         function footer() {
  13                 echo '</div>';
  14         }
  15
  16         function unhtmlentities($string) { // From php.net for < 4.3 compat
  17                 $trans_tbl = get_html_translation_table(HTML_ENTITIES);
  18                 $trans_tbl = array_flip($trans_tbl);
  19                 return strtr($string, $trans_tbl);
  20         }
  21
  22         function greet() {
  23                 echo '<p>'.__('Howdy! This importer allows you to extract posts from LiveJournal XML export file into your blog.  Pick a LiveJournal file to upload and click Import.').'</p>';
  24                 wp_import_upload_form("admin.php?import=livejournal&amp;step=1");
  25         }
  26
  27         function import_posts() {
  28                 global $wpdb, $current_user;
  29
  30                 set_magic_quotes_runtime(0);
  31                 $importdata = file($this->file); // Read the file into an array
  32                 $importdata = implode('', $importdata); // squish it
  33                 $importdata = str_replace(array ("\r\n", "\r"), "\n", $importdata);
  34
  35                 preg_match_all('|<entry>(.*?)</entry>|is', $importdata, $posts);
  36                 $posts = $posts[1];
  37                 unset($importdata);
  38                 echo '<ol>';
  39                 foreach ($posts as $post) {
  40                         flush();
  41                         preg_match('|<subject>(.*?)</subject>|is', $post, $post_title);
  42                         $post_title = $wpdb->escape(trim($post_title[1]));
  43                         if ( empty($post_title) ) {
  44                                 preg_match('|<itemid>(.*?)</itemid>|is', $post, $post_title);
  45                                 $post_title = $wpdb->escape(trim($post_title[1]));
  46                         }
  47
  48                         preg_match('|<eventtime>(.*?)</eventtime>|is', $post, $post_date);
  49                         $post_date = strtotime($post_date[1]);
  50                         $post_date = gmdate('Y-m-d H:i:s', $post_date);
  51
  52                         preg_match('|<event>(.*?)</event>|is', $post, $post_content);
  53                         $post_content = str_replace(array ('<![CDATA[', ']]>'), '', trim($post_content[1]));
  54                         $post_content = $this->unhtmlentities($post_content);
  55
  56                         // Clean up content
  57                         $post_content = preg_replace('|<(/?[A-Z]+)|e', "'<' . strtolower('$1')", $post_content);
  58                         $post_content = str_replace('<br>', '<br />', $post_content);
  59                         $post_content = str_replace('<hr>', '<hr />', $post_content);
  60                         $post_content = $wpdb->escape($post_content);
  61
  62                         $post_author = $current_user->ID;
  63                         $post_status = 'publish';
  64
  65                         echo '<li>';
  66                         if ($post_id = post_exists($post_title, $post_content, $post_date)) {
  67                                 printf(__('Post <i>%s</i> already exists.'), stripslashes($post_title));
  68                         } else {
  69                                 printf(__('Importing post <i>%s</i>...'), stripslashes($post_title));
  70                                 $postdata = compact('post_author', 'post_date', 'post_content', 'post_title', 'post_status');
  71                                 $post_id = wp_insert_post($postdata);
  72                                 if (!$post_id) {
  73                                         _e("Couldn't get post ID");
  74                                         echo '</li>';
  75                                         break;
  76                                 }
  77                         }
  78
  79                         preg_match_all('|<comment>(.*?)</comment>|is', $post, $comments);
  80                         $comments = $comments[1];
  81
  82                         if ( $comments ) {
  83                                 $comment_post_ID = (int) $post_id;
  84                                 $num_comments = 0;
  85                                 foreach ($comments as $comment) {
  86                                         preg_match('|<event>(.*?)</event>|is', $comment, $comment_content);
  87                                         $comment_content = str_replace(array ('<![CDATA[', ']]>'), '', trim($comment_content[1]));
  88                                         $comment_content = $this->unhtmlentities($comment_content);
  89
  90                                         // Clean up content
  91                                         $comment_content = preg_replace('|<(/?[A-Z]+)|e', "'<' . strtolower('$1')", $comment_content);
  92                                         $comment_content = str_replace('<br>', '<br />', $comment_content);
  93                                         $comment_content = str_replace('<hr>', '<hr />', $comment_content);
  94                                         $comment_content = $wpdb->escape($comment_content);
  95
  96                                         preg_match('|<eventtime>(.*?)</eventtime>|is', $comment, $comment_date);
  97                                         $comment_date = trim($comment_date[1]);
  98                                         $comment_date = date('Y-m-d H:i:s', strtotime($comment_date));
  99
 100                                         preg_match('|<name>(.*?)</name>|is', $comment, $comment_author);
 101                                         $comment_author = $wpdb->escape(trim($comment_author[1]));
 102
 103                                         preg_match('|<email>(.*?)</email>|is', $comment, $comment_author_email);
 104                                         $comment_author_email = $wpdb->escape(trim($comment_author_email[1]));
 105
 106                                         $comment_approved = 1;
 107                                         // Check if it's already there
 108                                         if (!comment_exists($comment_author, $comment_date)) {
 109                                                 $commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_date', 'comment_content', 'comment_approved');
 110                                                 $commentdata = wp_filter_comment($commentdata);
 111                                                 wp_insert_comment($commentdata);
 112                                                 $num_comments++;
 113                                         }
 114                                 }
 115                         }
 116                         if ( $num_comments ) {
 117                                 echo ' ';
 118                                 printf(__('(%s comments)'), $num_comments);
 119                         }
 120                         echo '</li>';
 121                         flush();
 122                         ob_flush();
 123                 }
 124                 echo '</ol>';
 125         }
 126
 127         function import() {
 128                 $file = wp_import_handle_upload();
 129                 if ( isset($file['error']) ) {
 130                         echo $file['error'];
 131                         return;
 132                 }
 133
 134                 $this->file = $file['file'];
 135                 $this->import_posts();
 136                 wp_import_cleanup($file['id']);
 137
 138                 echo '<h3>';
 139                 printf(__('All done. <a href="%s">Have fun!</a>'), get_option('home'));
 140                 echo '</h3>';
 141         }
 142
 143         function dispatch() {
 144                 if (empty ($_GET['step']))
 145                         $step = 0;
 146                 else
 147                         $step = (int) $_GET['step'];
 148
 149                 $this->header();
 150
 151                 switch ($step) {
 152                         case 0 :
 153                                 $this->greet();
 154                                 break;
 155                         case 1 :
 156                                 check_admin_referer('import-upload');
 157                                 $this->import();
 158                                 break;
 159                 }
 160
 161                 $this->footer();
 162         }
 163
 164         function LJ_Import() {
 165                 // Nothing.
 166         }
 167 }
 168
 169 $livejournal_import = new LJ_Import();
 170
 171 register_importer('livejournal', __('LiveJournal'), __('Import posts from LiveJournal'), array ($livejournal_import, 'dispatch'));
 172 ?>