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[autoinstalls/wordpress.git] / wp-admin / import / rss.php
1 <?php
2
3 class RSS_Import {
4
5         var $posts = array ();
6         var $file;
7
8         function header() {
9                 echo '<div class="wrap">';
10                 echo '<h2>'.__('Import RSS').'</h2>';
11         }
12
13         function footer() {
14                 echo '</div>';
15         }
16
17         function unhtmlentities($string) { // From php.net for < 4.3 compat
18                 $trans_tbl = get_html_translation_table(HTML_ENTITIES);
19                 $trans_tbl = array_flip($trans_tbl);
20                 return strtr($string, $trans_tbl);
21         }
22         
23         function greet() {
24                 echo '<p>'.__('Howdy! This importer allows you to extract posts from any RSS 2.0 file into your blog. This is useful if you want to import your posts from a system that is not handled by a custom import tool. Pick an RSS file to upload and click Import.').'</p>';
25                 wp_import_upload_form("admin.php?import=rss&amp;step=1");
26         }
27
28         function get_posts() {
29                 global $wpdb;
30                 
31                 set_magic_quotes_runtime(0);
32                 $datalines = file($this->file); // Read the file into an array
33                 $importdata = implode('', $datalines); // squish it
34                 $importdata = str_replace(array ("\r\n", "\r"), "\n", $importdata);
35
36                 preg_match_all('|<item>(.*?)</item>|is', $importdata, $this->posts);
37                 $this->posts = $this->posts[1];
38                 $index = 0;
39                 foreach ($this->posts as $post) {
40                         preg_match('|<title>(.*?)</title>|is', $post, $post_title);
41                         $post_title = str_replace(array('<![CDATA[', ']]>'), '', $wpdb->escape( trim($post_title[1]) ));
42
43                         preg_match('|<pubdate>(.*?)</pubdate>|is', $post, $post_date_gmt);
44
45                         if ($post_date_gmt) {
46                                 $post_date_gmt = strtotime($post_date_gmt[1]);
47                         } else {
48                                 // if we don't already have something from pubDate
49                                 preg_match('|<dc:date>(.*?)</dc:date>|is', $post, $post_date_gmt);
50                                 $post_date_gmt = preg_replace('|([-+])([0-9]+):([0-9]+)$|', '\1\2\3', $post_date_gmt[1]);
51                                 $post_date_gmt = str_replace('T', ' ', $post_date_gmt);
52                                 $post_date_gmt = strtotime($post_date_gmt);
53                         }
54
55                         $post_date_gmt = gmdate('Y-m-d H:i:s', $post_date_gmt);
56                         $post_date = get_date_from_gmt( $post_date_gmt );
57
58                         preg_match_all('|<category>(.*?)</category>|is', $post, $categories);
59                         $categories = $categories[1];
60
61                         if (!$categories) {
62                                 preg_match_all('|<dc:subject>(.*?)</dc:subject>|is', $post, $categories);
63                                 $categories = $categories[1];
64                         }
65
66                         $cat_index = 0;
67                         foreach ($categories as $category) {
68                                 $categories[$cat_index] = $wpdb->escape($this->unhtmlentities($category));
69                                 $cat_index++;
70                         }
71
72                         preg_match('|<guid.+?>(.*?)</guid>|is', $post, $guid);
73                         if ($guid)
74                                 $guid = $wpdb->escape(trim($guid[1]));
75                         else
76                                 $guid = '';
77
78                         preg_match('|<content:encoded>(.*?)</content:encoded>|is', $post, $post_content);
79                         $post_content = str_replace(array ('<![CDATA[', ']]>'), '', $wpdb->escape(trim($post_content[1])));
80
81                         if (!$post_content) {
82                                 // This is for feeds that put content in description
83                                 preg_match('|<description>(.*?)</description>|is', $post, $post_content);
84                                 $post_content = $wpdb->escape($this->unhtmlentities(trim($post_content[1])));
85                         }
86
87                         // Clean up content
88                         $post_content = preg_replace('|<(/?[A-Z]+)|e', "'<' . strtolower('$1')", $post_content);
89                         $post_content = str_replace('<br>', '<br />', $post_content);
90                         $post_content = str_replace('<hr>', '<hr />', $post_content);
91
92                         $post_author = 1;
93                         $post_status = 'publish';
94                         $this->posts[$index] = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_status', 'guid', 'categories');
95                         $index++;
96                 }
97         }
98
99         function import_posts() {
100                 echo '<ol>';
101
102                 foreach ($this->posts as $post) {
103                         echo "<li>".__('Importing post...');
104
105                         extract($post);
106
107                         if ($post_id = post_exists($post_title, $post_content, $post_date)) {
108                                 _e('Post already imported');
109                         } else {
110                                 $post_id = wp_insert_post($post);
111                                 if (!$post_id) {
112                                         _e("Couldn't get post ID");
113                                         return;
114                                 }
115
116                                 if (0 != count($categories))
117                                         wp_create_categories($categories, $post_id);
118                                 _e('Done !');
119                         }
120                         echo '</li>';
121                 }
122
123                 echo '</ol>';
124
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->get_posts();
136                 $this->import_posts();
137                 wp_import_cleanup($file['id']);
138                 
139                 echo '<h3>';
140                 printf(__('All done. <a href="%s">Have fun!</a>'), get_option('home'));
141                 echo '</h3>';
142         }
143
144         function dispatch() {
145                 if (empty ($_GET['step']))
146                         $step = 0;
147                 else
148                         $step = (int) $_GET['step'];
149
150                 $this->header();
151                 
152                 switch ($step) {
153                         case 0 :
154                                 $this->greet();
155                                 break;
156                         case 1 :
157                                 check_admin_referer('import-upload');
158                                 $this->import();
159                                 break;
160                 }
161                 
162                 $this->footer();
163         }
164
165         function RSS_Import() {
166                 // Nothing.     
167         }
168 }
169
170 $rss_import = new RSS_Import();
171
172 register_importer('rss', __('RSS'), __('Import posts from an RSS feed'), array ($rss_import, 'dispatch'));
173 ?>