[Plugin: Cache Images] [patch] Importing linked images from Blogger

I had need to import a Blogger blog and images to WordPress. The Cache Images plugin was the closest thing to a solution but it would only import images from the <img> tags and not the usual links to larger images from the <a> tags around <img> tags.

Not sure how well this will work but here’s a patch to import the images from links in unified diff format from the v2.0 downloaded plugin:

Index: cache-images/cache-images.php
===================================================================
RCS file: /htdocs/wp-content/plugins/cache-images/cache-images.php,v
retrieving revision 1.1.1.1
diff -u -w -r1.1.1.1 cache-images.php
--- cache-images/cache-images.php       11 Oct 2010 13:01:38 -0000      1.1.1.1
+++ cache-images/cache-images.php       11 Oct 2010 13:14:29 -0000
@@ -90,13 +90,13 @@

 <?php if ('2' == $_POST['step']) : ?>
 <?php
-$posts = $wpdb->get_results("SELECT post_content FROM $wpdb->posts WHERE post_content LIKE ('%<img%')");
+$posts = $wpdb->get_results("SELECT post_content FROM $wpdb->posts WHERE post_content REGEXP ('<(img|a) ')");

 if ( !$posts )
        die(__("No posts with images were found.", "cache-images") );

 foreach ($posts as $post) :
-       preg_match_all('|<img.*?src=[\'"](.*?)[\'"].*?>|i', $post->post_content, $matches);
+       preg_match_all('#<(?:a .*?href|img .*?src)=[\'"](.*?\.(?:jpg|png|gif))[\'"].*?>#i', $post->post_content, $matches);

        foreach ($matches[1] as $url) :
                $url = parse_url($url);
@@ -212,12 +212,12 @@
        $domain = $_POST["domain"];

        if ($action == "getlist") {
-               $postid_list = $wpdb->get_results("SELECT DISTINCT ID FROM $wpdb->posts WHERE post_content LIKE ('%<img%') AND post_content LIKE ('%$domain%')");
+               $postid_list = $wpdb->get_results("SELECT DISTINCT ID FROM $wpdb->posts WHERE post_content REGEXP ('<(img|a) ') AND post_content LIKE ('%$domain%')");

                foreach ( $postid_list as $v ) {
                        $postid = $v->ID;
                        $post = $wpdb->get_results("SELECT post_content FROM $wpdb->posts WHERE ID = '$postid'");
-                       preg_match_all('|<img.*?src=[\'"](.*?)[\'"].*?>|i', $post[0]->post_content, $matches);
+                       preg_match_all('#<(?:a .*?href|img .*?src)=[\'"](.*?\.(?:jpg|png|gif))[\'"].*?>#i', $post[0]->post_content, $matches);
                        foreach ( $matches[1] as $url ) :
                                if ( strstr( $url, get_option('siteurl') . '/' . get_option('upload_path') ) || !strstr( $url, $domain) || (($res) && in_multi_array($url, $res)))
                                        continue; // Already local
@@ -239,7 +239,7 @@
                        $my_body = wp_remote_retrieve_body($response);

                        if (strpos($my_body, 'src')) {
-                               preg_match_all('|<img.*?src=[\'"](.*?)[\'"].*?>|i', $my_body, $matches);
+                               preg_match_all('#<(?:a .*?href|img .*?src)=[\'"](.*?\.(?:jpg|png|gif))[\'"].*?>#i', $my_body, $matches);
                                foreach ( $matches[1] as $url ) :
                                        $spisak = $url;
                                endforeach;
@@ -252,7 +252,7 @@
                $upload = media_sideload_image($url, $postid);

                if ( !is_wp_error($upload) ) {
-                       preg_match_all('|<img.*?src=[\'"](.*?)[\'"].*?>|i', $upload, $locals);
+                       preg_match_all('#<(?:a .*?href|img .*?src)=[\'"](.*?\.(?:jpg|png|gif))[\'"].*?>#i', $upload, $locals);
                        foreach ( $locals[1] as $newurl ) :
                                $wpdb->query("UPDATE $wpdb->posts SET post_content = REPLACE(post_content, '$orig_url', '$newurl');");
                        endforeach;

Patch is copyright Ronny Adsetts and comes with no warranty. The plugin doesn’t appear to have any licence information but I assume it’s GPL compatible.

It works for me but YMMV.

Regards,
Ronny

http://wordpress.org/extend/plugins/cache-images/