source: trunk/www.guidonia.net/wp/wp-admin/import/mt.php@ 44

Last change on this file since 44 was 44, checked in by luciano, 14 years ago
File size: 15.7 KB
Line 
1<?php
2/**
3 * Movable Type and Typepad Importer
4 *
5 * @package WordPress
6 * @subpackage Importer
7 */
8
9/**
10 * Moveable Type and Typepad Importer class
11 *
12 * Upload your exported Movable Type or Typepad entries into WordPress.
13 *
14 * @since unknown
15 */
16class MT_Import {
17
18 var $posts = array ();
19 var $file;
20 var $id;
21 var $mtnames = array ();
22 var $newauthornames = array ();
23 var $j = -1;
24
25 function header() {
26 echo '<div class="wrap">';
27 screen_icon();
28 echo '<h2>'.__('Import Movable Type or TypePad').'</h2>';
29 }
30
31 function footer() {
32 echo '</div>';
33 }
34
35 function greet() {
36 $this->header();
37?>
38<div class="narrow">
39<p><?php _e('Howdy! We&#8217;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 &#8220;Upload file and import&#8221;, 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>
40
41<?php wp_import_upload_form( add_query_arg('step', 1) ); ?>
42<form method="post" action="<?php echo esc_attr(add_query_arg('step', 1)); ?>" class="import-upload-form">
43
44<?php wp_nonce_field('import-upload'); ?>
45<p>
46 <input type="hidden" name="upload_type" value="ftp" />
47<?php _e('Or use <code>mt-export.txt</code> in your <code>/wp-content/</code> directory'); ?></p>
48<p class="submit">
49<input type="submit" class="button" value="<?php esc_attr_e('Import mt-export.txt'); ?>" />
50</p>
51</form>
52<p><?php _e('The importer is smart enough not to import duplicates, so you can run this multiple times without worry if&#8212;for whatever reason&#8212;it doesn&#8217;t finish. If you get an <strong>out of memory</strong> error try splitting up the import file into pieces.'); ?> </p>
53</div>
54<?php
55 $this->footer();
56 }
57
58 function users_form($n) {
59 global $wpdb;
60 $users = $wpdb->get_results("SELECT * FROM $wpdb->users ORDER BY ID");
61?><select name="userselect[<?php echo $n; ?>]">
62 <option value="#NONE#"><?php _e('- Select -') ?></option>
63 <?php
64
65
66 foreach ($users as $user) {
67 echo '<option value="'.$user->user_login.'">'.$user->user_login.'</option>';
68 }
69?>
70 </select>
71 <?php
72
73 }
74
75 function has_gzip() {
76 return is_callable('gzopen');
77 }
78
79 function fopen($filename, $mode='r') {
80 if ( $this->has_gzip() )
81 return gzopen($filename, $mode);
82 return fopen($filename, $mode);
83 }
84
85 function feof($fp) {
86 if ( $this->has_gzip() )
87 return gzeof($fp);
88 return feof($fp);
89 }
90
91 function fgets($fp, $len=8192) {
92 if ( $this->has_gzip() )
93 return gzgets($fp, $len);
94 return fgets($fp, $len);
95 }
96
97 function fclose($fp) {
98 if ( $this->has_gzip() )
99 return gzclose($fp);
100 return fclose($fp);
101 }
102
103 //function to check the authorname and do the mapping
104 function checkauthor($author) {
105 //mtnames is an array with the names in the mt import file
106 $pass = wp_generate_password();
107 if (!(in_array($author, $this->mtnames))) { //a new mt author name is found
108 ++ $this->j;
109 $this->mtnames[$this->j] = $author; //add that new mt author name to an array
110 $user_id = username_exists($this->newauthornames[$this->j]); //check if the new author name defined by the user is a pre-existing wp user
111 if (!$user_id) { //banging my head against the desk now.
112 if ($this->newauthornames[$this->j] == 'left_blank') { //check if the user does not want to change the authorname
113 $user_id = wp_create_user($author, $pass);
114 $this->newauthornames[$this->j] = $author; //now we have a name, in the place of left_blank.
115 } else {
116 $user_id = wp_create_user($this->newauthornames[$this->j], $pass);
117 }
118 } else {
119 return $user_id; // return pre-existing wp username if it exists
120 }
121 } else {
122 $key = array_search($author, $this->mtnames); //find the array key for $author in the $mtnames array
123 $user_id = username_exists($this->newauthornames[$key]); //use that key to get the value of the author's name from $newauthornames
124 }
125
126 return $user_id;
127 }
128
129 function get_mt_authors() {
130 $temp = array();
131 $authors = array();
132
133 $handle = $this->fopen($this->file, 'r');
134 if ( $handle == null )
135 return false;
136
137 $in_comment = false;
138 while ( $line = $this->fgets($handle) ) {
139 $line = trim($line);
140
141 if ( 'COMMENT:' == $line )
142 $in_comment = true;
143 else if ( '-----' == $line )
144 $in_comment = false;
145
146 if ( $in_comment || 0 !== strpos($line,"AUTHOR:") )
147 continue;
148
149 $temp[] = trim( substr($line, strlen("AUTHOR:")) );
150 }
151
152 //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.
153 $authors[0] = array_shift($temp);
154 $y = count($temp) + 1;
155 for ($x = 1; $x < $y; $x ++) {
156 $next = array_shift($temp);
157 if (!(in_array($next, $authors)))
158 array_push($authors, "$next");
159 }
160
161 $this->fclose($handle);
162
163 return $authors;
164 }
165
166 function get_authors_from_post() {
167 $formnames = array ();
168 $selectnames = array ();
169
170 foreach ($_POST['user'] as $key => $line) {
171 $newname = trim(stripslashes($line));
172 if ($newname == '')
173 $newname = 'left_blank'; //passing author names from step 1 to step 2 is accomplished by using POST. left_blank denotes an empty entry in the form.
174 array_push($formnames, "$newname");
175 } // $formnames is the array with the form entered names
176
177 foreach ($_POST['userselect'] as $user => $key) {
178 $selected = trim(stripslashes($key));
179 array_push($selectnames, "$selected");
180 }
181
182 $count = count($formnames);
183 for ($i = 0; $i < $count; $i ++) {
184 if ($selectnames[$i] != '#NONE#') { //if no name was selected from the select menu, use the name entered in the form
185 array_push($this->newauthornames, "$selectnames[$i]");
186 } else {
187 array_push($this->newauthornames, "$formnames[$i]");
188 }
189 }
190 }
191
192 function mt_authors_form() {
193?>
194<div class="wrap">
195<?php screen_icon(); ?>
196<h2><?php _e('Assign Authors'); ?></h2>
197<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&#8217;s entries.'); ?></p>
198<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>
199<p><?php _e('If a new user is created by WordPress, a password will be randomly generated. Manually change the user&#8217;s details if necessary.'); ?></p>
200 <?php
201
202
203 $authors = $this->get_mt_authors();
204 echo '<ol id="authors">';
205 echo '<form action="?import=mt&amp;step=2&amp;id=' . $this->id . '" method="post">';
206 wp_nonce_field('import-mt');
207 $j = -1;
208 foreach ($authors as $author) {
209 ++ $j;
210 echo '<li><label>'.__('Current author:').' <strong>'.$author.'</strong><br />'.sprintf(__('Create user %1$s or map to existing'), ' <input type="text" value="'. esc_attr($author) .'" name="'.'user[]'.'" maxlength="30"> <br />');
211 $this->users_form($j);
212 echo '</label></li>';
213 }
214
215 echo '<p class="submit"><input type="submit" class="button" value="'.esc_attr__('Submit').'"></p>'.'<br />';
216 echo '</form>';
217 echo '</ol></div>';
218
219 }
220
221 function select_authors() {
222 if ( $_POST['upload_type'] === 'ftp' ) {
223 $file['file'] = WP_CONTENT_DIR . '/mt-export.txt';
224 if ( !file_exists($file['file']) )
225 $file['error'] = __('<code>mt-export.txt</code> does not exist');
226 } else {
227 $file = wp_import_handle_upload();
228 }
229 if ( isset($file['error']) ) {
230 $this->header();
231 echo '<p>'.__('Sorry, there has been an error').'.</p>';
232 echo '<p><strong>' . $file['error'] . '</strong></p>';
233 $this->footer();
234 return;
235 }
236 $this->file = $file['file'];
237 $this->id = (int) $file['id'];
238
239 $this->mt_authors_form();
240 }
241
242 function save_post(&$post, &$comments, &$pings) {
243 // Reset the counter
244 set_time_limit(30);
245 $post = get_object_vars($post);
246 $post = add_magic_quotes($post);
247 $post = (object) $post;
248
249 if ( $post_id = post_exists($post->post_title, '', $post->post_date) ) {
250 echo '<li>';
251 printf(__('Post <em>%s</em> already exists.'), stripslashes($post->post_title));
252 } else {
253 echo '<li>';
254 printf(__('Importing post <em>%s</em>...'), stripslashes($post->post_title));
255
256 if ( '' != trim( $post->extended ) )
257 $post->post_content .= "\n<!--more-->\n$post->extended";
258
259 $post->post_author = $this->checkauthor($post->post_author); //just so that if a post already exists, new users are not created by checkauthor
260 $post_id = wp_insert_post($post);
261 if ( is_wp_error( $post_id ) )
262 return $post_id;
263
264 // Add categories.
265 if ( 0 != count($post->categories) ) {
266 wp_create_categories($post->categories, $post_id);
267 }
268
269 // Add tags or keywords
270 if ( 1 < strlen($post->post_keywords) ) {
271 // Keywords exist.
272 printf(__('<br />Adding tags <i>%s</i>...'), stripslashes($post->post_keywords));
273 wp_add_post_tags($post_id, $post->post_keywords);
274 }
275 }
276
277 $num_comments = 0;
278 foreach ( $comments as $comment ) {
279 $comment = get_object_vars($comment);
280 $comment = add_magic_quotes($comment);
281
282 if ( !comment_exists($comment['comment_author'], $comment['comment_date'])) {
283 $comment['comment_post_ID'] = $post_id;
284 $comment = wp_filter_comment($comment);
285 wp_insert_comment($comment);
286 $num_comments++;
287 }
288 }
289
290 if ( $num_comments )
291 printf(' '._n('(%s comment)', '(%s comments)', $num_comments), $num_comments);
292
293 $num_pings = 0;
294 foreach ( $pings as $ping ) {
295 $ping = get_object_vars($ping);
296 $ping = add_magic_quotes($ping);
297
298 if ( !comment_exists($ping['comment_author'], $ping['comment_date'])) {
299 $ping['comment_content'] = "<strong>{$ping['title']}</strong>\n\n{$ping['comment_content']}";
300 $ping['comment_post_ID'] = $post_id;
301 $ping = wp_filter_comment($ping);
302 wp_insert_comment($ping);
303 $num_pings++;
304 }
305 }
306
307 if ( $num_pings )
308 printf(' '._n('(%s ping)', '(%s pings)', $num_pings), $num_pings);
309
310 echo "</li>";
311 //ob_flush();flush();
312 }
313
314 function process_posts() {
315 global $wpdb;
316
317 $handle = $this->fopen($this->file, 'r');
318 if ( $handle == null )
319 return false;
320
321 $context = '';
322 $post = new StdClass();
323 $comment = new StdClass();
324 $comments = array();
325 $ping = new StdClass();
326 $pings = array();
327
328 echo "<div class='wrap'><ol>";
329
330 while ( $line = $this->fgets($handle) ) {
331 $line = trim($line);
332
333 if ( '-----' == $line ) {
334 // Finishing a multi-line field
335 if ( 'comment' == $context ) {
336 $comments[] = $comment;
337 $comment = new StdClass();
338 } else if ( 'ping' == $context ) {
339 $pings[] = $ping;
340 $ping = new StdClass();
341 }
342 $context = '';
343 } else if ( '--------' == $line ) {
344 // Finishing a post.
345 $context = '';
346 $result = $this->save_post($post, $comments, $pings);
347 if ( is_wp_error( $result ) )
348 return $result;
349 $post = new StdClass;
350 $comment = new StdClass();
351 $ping = new StdClass();
352 $comments = array();
353 $pings = array();
354 } else if ( 'BODY:' == $line ) {
355 $context = 'body';
356 } else if ( 'EXTENDED BODY:' == $line ) {
357 $context = 'extended';
358 } else if ( 'EXCERPT:' == $line ) {
359 $context = 'excerpt';
360 } else if ( 'KEYWORDS:' == $line ) {
361 $context = 'keywords';
362 } else if ( 'COMMENT:' == $line ) {
363 $context = 'comment';
364 } else if ( 'PING:' == $line ) {
365 $context = 'ping';
366 } else if ( 0 === strpos($line, "AUTHOR:") ) {
367 $author = trim( substr($line, strlen("AUTHOR:")) );
368 if ( '' == $context )
369 $post->post_author = $author;
370 else if ( 'comment' == $context )
371 $comment->comment_author = $author;
372 } else if ( 0 === strpos($line, "TITLE:") ) {
373 $title = trim( substr($line, strlen("TITLE:")) );
374 if ( '' == $context )
375 $post->post_title = $title;
376 else if ( 'ping' == $context )
377 $ping->title = $title;
378 } else if ( 0 === strpos($line, "STATUS:") ) {
379 $status = trim( strtolower( substr($line, strlen("STATUS:")) ) );
380 if ( empty($status) )
381 $status = 'publish';
382 $post->post_status = $status;
383 } else if ( 0 === strpos($line, "ALLOW COMMENTS:") ) {
384 $allow = trim( substr($line, strlen("ALLOW COMMENTS:")) );
385 if ( $allow == 1 )
386 $post->comment_status = 'open';
387 else
388 $post->comment_status = 'closed';
389 } else if ( 0 === strpos($line, "ALLOW PINGS:") ) {
390 $allow = trim( substr($line, strlen("ALLOW PINGS:")) );
391 if ( $allow == 1 )
392 $post->ping_status = 'open';
393 else
394 $post->ping_status = 'closed';
395 } else if ( 0 === strpos($line, "CATEGORY:") ) {
396 $category = trim( substr($line, strlen("CATEGORY:")) );
397 if ( '' != $category )
398 $post->categories[] = $category;
399 } else if ( 0 === strpos($line, "PRIMARY CATEGORY:") ) {
400 $category = trim( substr($line, strlen("PRIMARY CATEGORY:")) );
401 if ( '' != $category )
402 $post->categories[] = $category;
403 } else if ( 0 === strpos($line, "DATE:") ) {
404 $date = trim( substr($line, strlen("DATE:")) );
405 $date = strtotime($date);
406 $date = date('Y-m-d H:i:s', $date);
407 $date_gmt = get_gmt_from_date($date);
408 if ( '' == $context ) {
409 $post->post_modified = $date;
410 $post->post_modified_gmt = $date_gmt;
411 $post->post_date = $date;
412 $post->post_date_gmt = $date_gmt;
413 } else if ( 'comment' == $context ) {
414 $comment->comment_date = $date;
415 } else if ( 'ping' == $context ) {
416 $ping->comment_date = $date;
417 }
418 } else if ( 0 === strpos($line, "EMAIL:") ) {
419 $email = trim( substr($line, strlen("EMAIL:")) );
420 if ( 'comment' == $context )
421 $comment->comment_author_email = $email;
422 else
423 $ping->comment_author_email = '';
424 } else if ( 0 === strpos($line, "IP:") ) {
425 $ip = trim( substr($line, strlen("IP:")) );
426 if ( 'comment' == $context )
427 $comment->comment_author_IP = $ip;
428 else
429 $ping->comment_author_IP = $ip;
430 } else if ( 0 === strpos($line, "URL:") ) {
431 $url = trim( substr($line, strlen("URL:")) );
432 if ( 'comment' == $context )
433 $comment->comment_author_url = $url;
434 else
435 $ping->comment_author_url = $url;
436 } else if ( 0 === strpos($line, "BLOG NAME:") ) {
437 $blog = trim( substr($line, strlen("BLOG NAME:")) );
438 $ping->comment_author = $blog;
439 } else {
440 // Processing multi-line field, check context.
441
442 if( !empty($line) )
443 $line .= "\n";
444
445 if ( 'body' == $context ) {
446 $post->post_content .= $line;
447 } else if ( 'extended' == $context ) {
448 $post->extended .= $line;
449 } else if ( 'excerpt' == $context ) {
450 $post->post_excerpt .= $line;
451 } else if ( 'keywords' == $context ) {
452 $post->post_keywords .= $line;
453 } else if ( 'comment' == $context ) {
454 $comment->comment_content .= $line;
455 } else if ( 'ping' == $context ) {
456 $ping->comment_content .= $line;
457 }
458 }
459 }
460
461 $this->fclose($handle);
462
463 echo '</ol>';
464
465 wp_import_cleanup($this->id);
466 do_action('import_done', 'mt');
467
468 echo '<h3>'.sprintf(__('All done. <a href="%s">Have fun!</a>'), get_option('home')).'</h3></div>';
469 }
470
471 function import() {
472 $this->id = (int) $_GET['id'];
473 if ( $this->id == 0 )
474 $this->file = WP_CONTENT_DIR . '/mt-export.txt';
475 else
476 $this->file = get_attached_file($this->id);
477 $this->get_authors_from_post();
478 $result = $this->process_posts();
479 if ( is_wp_error( $result ) )
480 return $result;
481 }
482
483 function dispatch() {
484 if (empty ($_GET['step']))
485 $step = 0;
486 else
487 $step = (int) $_GET['step'];
488
489 switch ($step) {
490 case 0 :
491 $this->greet();
492 break;
493 case 1 :
494 check_admin_referer('import-upload');
495 $this->select_authors();
496 break;
497 case 2:
498 check_admin_referer('import-mt');
499 $result = $this->import();
500 if ( is_wp_error( $result ) )
501 echo $result->get_error_message();
502 break;
503 }
504 }
505
506 function MT_Import() {
507 // Nothing.
508 }
509}
510
511$mt_import = new MT_Import();
512
513register_importer('mt', __('Movable Type and TypePad'), __('Import posts and comments from a Movable Type or Typepad blog.'), array ($mt_import, 'dispatch'));
514?>
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