459 lines
14 KiB
PHP
459 lines
14 KiB
PHP
<?php
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class MT_Import {
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var $posts = array ();
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var $file;
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var $id;
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var $mtnames = array ();
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var $newauthornames = array ();
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var $j = -1;
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function header() {
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echo '<div class="wrap">';
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echo '<h2>'.__('Import Movable Type or TypePad').'</h2>';
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}
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function footer() {
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echo '</div>';
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}
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function greet() {
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$this->header();
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?>
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<div class="narrow">
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<p><?php _e('Howdy! We’re about to begin importing all of your Movable Type or Typepad entries into WordPress. To begin, either choose a file to upload and click "Upload file and import," or use FTP to upload your MT export file as <code>mt-export.txt</code> in your <code>/wp-content/</code> directory and then click "Import mt-export.txt"'); ?></p>
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<?php wp_import_upload_form( add_query_arg('step', 1) ); ?>
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<form method="post" action="<?php echo add_query_arg('step', 1); ?>" class="import-upload-form">
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<?php wp_nonce_field('import-upload'); ?>
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<p>
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<input type="hidden" name="upload_type" value="ftp" />
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<?php _e('Or use <code>mt-export.txt</code> in your <code>/wp-content/</code> directory'); ?></p>
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<p class="submit">
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<input type="submit" value="<?php echo attribute_escape(__('Import mt-export.txt')); ?>" />
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</p>
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</form>
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<p><?php _e('The importer is smart enough not to import duplicates, so you can run this multiple times without worry if—for whatever reason—it doesn\'t finish. If you get an <strong>out of memory</strong> error try splitting up the import file into pieces.'); ?> </p>
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</div>
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<?php
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$this->footer();
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}
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function users_form($n) {
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global $wpdb, $testing;
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$users = $wpdb->get_results("SELECT * FROM $wpdb->users ORDER BY ID");
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?><select name="userselect[<?php echo $n; ?>]">
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<option value="#NONE#"><?php _e('- Select -') ?></option>
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<?php
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foreach ($users as $user) {
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echo '<option value="'.$user->user_login.'">'.$user->user_login.'</option>';
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}
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?>
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</select>
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<?php
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}
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//function to check the authorname and do the mapping
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function checkauthor($author) {
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global $wpdb;
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//mtnames is an array with the names in the mt import file
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$pass = wp_generate_password();
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if (!(in_array($author, $this->mtnames))) { //a new mt author name is found
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++ $this->j;
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$this->mtnames[$this->j] = $author; //add that new mt author name to an array
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$user_id = username_exists($this->newauthornames[$this->j]); //check if the new author name defined by the user is a pre-existing wp user
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if (!$user_id) { //banging my head against the desk now.
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if ($newauthornames[$this->j] == 'left_blank') { //check if the user does not want to change the authorname
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$user_id = wp_create_user($author, $pass);
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$this->newauthornames[$this->j] = $author; //now we have a name, in the place of left_blank.
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} else {
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$user_id = wp_create_user($this->newauthornames[$this->j], $pass);
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}
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} else {
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return $user_id; // return pre-existing wp username if it exists
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}
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} else {
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$key = array_search($author, $this->mtnames); //find the array key for $author in the $mtnames array
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$user_id = username_exists($this->newauthornames[$key]); //use that key to get the value of the author's name from $newauthornames
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}
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return $user_id;
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}
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function get_mt_authors() {
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$temp = array();
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$authors = array();
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$handle = fopen($this->file, 'r');
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if ( $handle == null )
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return false;
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$in_comment = false;
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while ( $line = fgets($handle) ) {
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$line = trim($line);
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if ( 'COMMENT:' == $line )
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$in_comment = true;
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else if ( '-----' == $line )
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$in_comment = false;
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if ( $in_comment || 0 !== strpos($line,"AUTHOR:") )
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continue;
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$temp[] = trim( substr($line, strlen("AUTHOR:")) );
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}
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//we need to find unique values of author names, while preserving the order, so this function emulates the unique_value(); php function, without the sorting.
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$authors[0] = array_shift($temp);
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$y = count($temp) + 1;
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for ($x = 1; $x < $y; $x ++) {
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$next = array_shift($temp);
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if (!(in_array($next, $authors)))
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array_push($authors, "$next");
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}
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fclose($handle);
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return $authors;
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}
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function get_authors_from_post() {
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$formnames = array ();
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$selectnames = array ();
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foreach ($_POST['user'] as $key => $line) {
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$newname = trim(stripslashes($line));
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if ($newname == '')
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$newname = 'left_blank'; //passing author names from step 1 to step 2 is accomplished by using POST. left_blank denotes an empty entry in the form.
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array_push($formnames, "$newname");
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} // $formnames is the array with the form entered names
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foreach ($_POST['userselect'] as $user => $key) {
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$selected = trim(stripslashes($key));
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array_push($selectnames, "$selected");
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}
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$count = count($formnames);
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for ($i = 0; $i < $count; $i ++) {
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if ($selectnames[$i] != '#NONE#') { //if no name was selected from the select menu, use the name entered in the form
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array_push($this->newauthornames, "$selectnames[$i]");
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} else {
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array_push($this->newauthornames, "$formnames[$i]");
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}
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}
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}
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function mt_authors_form() {
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?>
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<div class="wrap">
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<h2><?php _e('Assign Authors'); ?></h2>
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<p><?php _e('To make it easier for you to edit and save the imported posts and drafts, you may want to change the name of the author of the posts. For example, you may want to import all the entries as admin\'s entries.'); ?></p>
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<p><?php _e('Below, you can see the names of the authors of the MovableType posts in <em>italics</em>. For each of these names, you can either pick an author in your WordPress installation from the menu, or enter a name for the author in the textbox.'); ?></p>
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<p><?php _e('If a new user is created by WordPress, a password will be randomly generated. Manually change the user\'s details if necessary.'); ?></p>
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<?php
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$authors = $this->get_mt_authors();
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echo '<ol id="authors">';
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echo '<form action="?import=mt&step=2&id=' . $this->id . '" method="post">';
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wp_nonce_field('import-mt');
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$j = -1;
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foreach ($authors as $author) {
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++ $j;
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echo '<li>'.__('Current author:').' <strong>'.$author.'</strong><br />'.sprintf(__('Create user %1$s or map to existing'), ' <input type="text" value="'.$author.'" name="'.'user[]'.'" maxlength="30"> <br />');
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$this->users_form($j);
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echo '</li>';
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}
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echo '<input type="submit" value="'.__('Submit').'">'.'<br />';
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echo '</form>';
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echo '</ol></div>';
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}
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function select_authors() {
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if ( $_POST['upload_type'] === 'ftp' ) {
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$file['file'] = ABSPATH . 'wp-content/mt-export.txt';
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if ( !file_exists($file['file']) )
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$file['error'] = __('<code>mt-export.txt</code> does not exist');
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} else {
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$file = wp_import_handle_upload();
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}
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if ( isset($file['error']) ) {
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$this->header();
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echo '<p>'.__('Sorry, there has been an error').'.</p>';
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echo '<p><strong>' . $file['error'] . '</strong></p>';
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$this->footer();
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return;
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}
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$this->file = $file['file'];
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$this->id = (int) $file['id'];
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$this->mt_authors_form();
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}
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function save_post(&$post, &$comments, &$pings) {
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// Reset the counter
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set_time_limit(30);
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$post = get_object_vars($post);
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$post = add_magic_quotes($post);
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$post = (object) $post;
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if ( $post_id = post_exists($post->post_title, '', $post->post_date) ) {
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echo '<li>';
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printf(__('Post <em>%s</em> already exists.'), stripslashes($post->post_title));
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} else {
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echo '<li>';
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printf(__('Importing post <em>%s</em>...'), stripslashes($post->post_title));
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if ( '' != trim( $post->extended ) )
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$post->post_content .= "\n<!--more-->\n$post->extended";
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$post->post_author = $this->checkauthor($post->post_author); //just so that if a post already exists, new users are not created by checkauthor
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$post_id = wp_insert_post($post);
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if ( is_wp_error( $post_id ) )
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return $post_id;
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// Add categories.
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if ( 0 != count($post->categories) ) {
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wp_create_categories($post->categories, $post_id);
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}
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}
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$num_comments = 0;
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foreach ( $comments as $comment ) {
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$comment = get_object_vars($comment);
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$comment = add_magic_quotes($comment);
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if ( !comment_exists($comment['comment_author'], $comment['comment_date'])) {
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$comment['comment_post_ID'] = $post_id;
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$comment = wp_filter_comment($comment);
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wp_insert_comment($comment);
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$num_comments++;
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}
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}
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if ( $num_comments )
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printf(' '.__ngettext('(%s comment)', '(%s comments)', $num_comments), $num_comments);
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$num_pings = 0;
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foreach ( $pings as $ping ) {
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$ping = get_object_vars($ping);
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$ping = add_magic_quotes($ping);
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if ( !comment_exists($ping['comment_author'], $ping['comment_date'])) {
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$ping['comment_content'] = "<strong>{$ping['title']}</strong>\n\n{$ping['comment_content']}";
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$ping['comment_post_ID'] = $post_id;
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$ping = wp_filter_comment($ping);
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wp_insert_comment($ping);
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$num_pings++;
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}
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}
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if ( $num_pings )
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printf(' '.__ngettext('(%s ping)', '(%s pings)', $num_pings), $num_pings);
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echo "</li>";
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//ob_flush();flush();
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}
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function process_posts() {
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global $wpdb;
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$handle = fopen($this->file, 'r');
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if ( $handle == null )
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return false;
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$context = '';
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$post = new StdClass();
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$comment = new StdClass();
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$comments = array();
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$ping = new StdClass();
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$pings = array();
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echo "<div class='wrap'><ol>";
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while ( $line = fgets($handle) ) {
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$line = trim($line);
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if ( '-----' == $line ) {
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// Finishing a multi-line field
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if ( 'comment' == $context ) {
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$comments[] = $comment;
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$comment = new StdClass();
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} else if ( 'ping' == $context ) {
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$pings[] = $ping;
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$ping = new StdClass();
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}
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$context = '';
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} else if ( '--------' == $line ) {
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// Finishing a post.
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$context = '';
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$result = $this->save_post($post, $comments, $pings);
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if ( is_wp_error( $result ) )
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return $result;
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$post = new StdClass;
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$comment = new StdClass();
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$ping = new StdClass();
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$comments = array();
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$pings = array();
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} else if ( 'BODY:' == $line ) {
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$context = 'body';
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} else if ( 'EXTENDED BODY:' == $line ) {
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$context = 'extended';
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} else if ( 'EXCERPT:' == $line ) {
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$context = 'excerpt';
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} else if ( 'KEYWORDS:' == $line ) {
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$context = 'keywords';
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} else if ( 'COMMENT:' == $line ) {
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$context = 'comment';
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} else if ( 'PING:' == $line ) {
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$context = 'ping';
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} else if ( 0 === strpos($line, "AUTHOR:") ) {
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$author = trim( substr($line, strlen("AUTHOR:")) );
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if ( '' == $context )
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$post->post_author = $author;
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else if ( 'comment' == $context )
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$comment->comment_author = $author;
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} else if ( 0 === strpos($line, "TITLE:") ) {
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$title = trim( substr($line, strlen("TITLE:")) );
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if ( '' == $context )
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$post->post_title = $title;
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else if ( 'ping' == $context )
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$ping->title = $title;
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} else if ( 0 === strpos($line, "STATUS:") ) {
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$status = trim( substr($line, strlen("STATUS:")) );
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if ( empty($status) )
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$status = 'publish';
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$post->post_status = $status;
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} else if ( 0 === strpos($line, "ALLOW COMMENTS:") ) {
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$allow = trim( substr($line, strlen("ALLOW COMMENTS:")) );
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if ( $allow == 1 )
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$post->comment_status = 'open';
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else
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$post->comment_status = 'closed';
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} else if ( 0 === strpos($line, "ALLOW PINGS:") ) {
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$allow = trim( substr($line, strlen("ALLOW PINGS:")) );
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if ( $allow == 1 )
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$post->ping_status = 'open';
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else
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$post->ping_status = 'closed';
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} else if ( 0 === strpos($line, "CATEGORY:") ) {
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$category = trim( substr($line, strlen("CATEGORY:")) );
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if ( '' != $category )
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$post->categories[] = $category;
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} else if ( 0 === strpos($line, "PRIMARY CATEGORY:") ) {
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$category = trim( substr($line, strlen("PRIMARY CATEGORY:")) );
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if ( '' != $category )
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$post->categories[] = $category;
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} else if ( 0 === strpos($line, "DATE:") ) {
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$date = trim( substr($line, strlen("DATE:")) );
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$date = strtotime($date);
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$date = date('Y-m-d H:i:s', $date);
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$date_gmt = get_gmt_from_date($date);
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if ( '' == $context ) {
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$post->post_modified = $date;
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$post->post_modified_gmt = $date_gmt;
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$post->post_date = $date;
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$post->post_date_gmt = $date_gmt;
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} else if ( 'comment' == $context ) {
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$comment->comment_date = $date;
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} else if ( 'ping' == $context ) {
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$ping->comment_date = $date;
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}
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} else if ( 0 === strpos($line, "EMAIL:") ) {
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$email = trim( substr($line, strlen("EMAIL:")) );
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if ( 'comment' == $context )
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$comment->comment_author_email = $email;
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else
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$ping->comment_author_email = '';
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} else if ( 0 === strpos($line, "IP:") ) {
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$ip = trim( substr($line, strlen("IP:")) );
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if ( 'comment' == $context )
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$comment->comment_author_IP = $ip;
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else
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$ping->comment_author_IP = $ip;
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} else if ( 0 === strpos($line, "URL:") ) {
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$url = trim( substr($line, strlen("URL:")) );
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if ( 'comment' == $context )
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$comment->comment_author_url = $url;
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else
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$ping->comment_author_url = $url;
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} else if ( 0 === strpos($line, "BLOG NAME:") ) {
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$blog = trim( substr($line, strlen("BLOG NAME:")) );
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$ping->comment_author = $blog;
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} else {
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// Processing multi-line field, check context.
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$line .= "\n";
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if ( 'body' == $context ) {
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$post->post_content .= $line;
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} else if ( 'extended' == $context ) {
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$post->extended .= $line;
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} else if ( 'excerpt' == $context ) {
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$post->post_excerpt .= $line;
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} else if ( 'comment' == $context ) {
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$comment->comment_content .= $line;
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} else if ( 'ping' == $context ) {
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$ping->comment_content .= $line;
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}
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}
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}
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echo '</ol>';
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wp_import_cleanup($this->id);
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do_action('import_done', 'mt');
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echo '<h3>'.sprintf(__('All done. <a href="%s">Have fun!</a>'), get_option('home')).'</h3></div>';
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}
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function import() {
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$this->id = (int) $_GET['id'];
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if ( $this->id == 0 )
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$this->file = ABSPATH . 'wp-content/mt-export.txt';
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else
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$this->file = get_attached_file($this->id);
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$this->get_authors_from_post();
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$result = $this->process_posts();
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if ( is_wp_error( $result ) )
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return $result;
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}
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function dispatch() {
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if (empty ($_GET['step']))
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$step = 0;
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else
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$step = (int) $_GET['step'];
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switch ($step) {
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case 0 :
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$this->greet();
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break;
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case 1 :
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check_admin_referer('import-upload');
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$this->select_authors();
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break;
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case 2:
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check_admin_referer('import-mt');
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$result = $this->import();
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if ( is_wp_error( $result ) )
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echo $result->get_error_message();
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break;
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}
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}
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function MT_Import() {
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// Nothing.
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}
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}
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$mt_import = new MT_Import();
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register_importer('mt', __('Movable Type and TypePad'), __('Import posts and comments from a Movable Type or Typepad blog.'), array ($mt_import, 'dispatch'));
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?>
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