\n";
}
function uh_oh($title, $message, $info) {
echo "
";
screen_icon();
echo "
$title
$message
$info
";
}
function auth() {
// We have a single-use token that must be upgraded to a session token.
$token = preg_replace( '/[^-_0-9a-zA-Z]/', '', $_GET['token'] );
$headers = array(
"GET /accounts/AuthSubSessionToken HTTP/1.0",
"Authorization: AuthSub token=\"$token\""
);
$request = join( "\r\n", $headers ) . "\r\n\r\n";
$sock = $this->_get_auth_sock( );
if ( ! $sock ) return false;
$response = $this->_txrx( $sock, $request );
preg_match( '/token=([-_0-9a-z]+)/i', $response, $matches );
if ( empty( $matches[1] ) ) {
$this->uh_oh(
__( 'Authorization failed' ),
__( 'Something went wrong. If the problem persists, send this info to support:' ),
htmlspecialchars($response)
);
return false;
}
$this->token = $matches[1];
wp_redirect( remove_query_arg( array( 'token', 'noheader' ) ) );
}
function get_token_info() {
$headers = array(
"GET /accounts/AuthSubTokenInfo HTTP/1.0",
"Authorization: AuthSub token=\"$this->token\""
);
$request = join( "\r\n", $headers ) . "\r\n\r\n";
$sock = $this->_get_auth_sock( );
if ( ! $sock ) return;
$response = $this->_txrx( $sock, $request );
return $this->parse_response($response);
}
function token_is_valid() {
$info = $this->get_token_info();
if ( $info['code'] == 200 )
return true;
return false;
}
function show_blogs($iter = 0) {
if ( empty($this->blogs) ) {
$headers = array(
"GET /feeds/default/blogs HTTP/1.0",
"Host: www.blogger.com",
"Authorization: AuthSub token=\"$this->token\""
);
$request = join( "\r\n", $headers ) . "\r\n\r\n";
$sock = $this->_get_blogger_sock( );
if ( ! $sock ) return;
$response = $this->_txrx( $sock, $request );
// Quick and dirty XML mining.
list( $headers, $xml ) = explode( "\r\n\r\n", $response );
$p = xml_parser_create();
xml_parse_into_struct($p, $xml, $vals, $index);
xml_parser_free($p);
$this->title = $vals[$index['TITLE'][0]]['value'];
// Give it a few retries... this step often flakes out the first time.
if ( empty( $index['ENTRY'] ) ) {
if ( $iter < 3 ) {
return $this->show_blogs($iter + 1);
} else {
$this->uh_oh(
__('Trouble signing in'),
__('We were not able to gain access to your account. Try starting over.'),
''
);
return false;
}
}
foreach ( $index['ENTRY'] as $i ) {
$blog = array();
while ( ( $tag = $vals[$i] ) && ! ( $tag['tag'] == 'ENTRY' && $tag['type'] == 'close' ) ) {
if ( $tag['tag'] == 'TITLE' ) {
$blog['title'] = $tag['value'];
} elseif ( $tag['tag'] == 'SUMMARY' ) {
$blog['summary'] == $tag['value'];
} elseif ( $tag['tag'] == 'LINK' ) {
if ( $tag['attributes']['REL'] == 'alternate' && $tag['attributes']['TYPE'] == 'text/html' ) {
$parts = parse_url( $tag['attributes']['HREF'] );
$blog['host'] = $parts['host'];
} elseif ( $tag['attributes']['REL'] == 'edit' )
$blog['gateway'] = $tag['attributes']['HREF'];
}
++$i;
}
if ( ! empty ( $blog ) ) {
$blog['total_posts'] = $this->get_total_results('posts', $blog['host']);
$blog['total_comments'] = $this->get_total_results('comments', $blog['host']);
$blog['mode'] = 'init';
$this->blogs[] = $blog;
}
}
if ( empty( $this->blogs ) ) {
$this->uh_oh(
__('No blogs found'),
__('We were able to log in but there were no blogs. Try a different account next time.'),
''
);
return false;
}
}
//echo '
'.print_r($this,1).'
';
$start = esc_js( __('Import') );
$continue = esc_js( __('Continue') );
$stop = esc_js( __('Importing...') );
$authors = esc_js( __('Set Authors') );
$loadauth = esc_js( __('Preparing author mapping form...') );
$authhead = esc_js( __('Final Step: Author Mapping') );
$nothing = esc_js( __('Nothing was imported. Had you already imported this blog?') );
$title = __('Blogger Blogs');
$name = __('Blog Name');
$url = __('Blog URL');
$action = __('The Magic Button');
$posts = __('Posts');
$comments = __('Comments');
$noscript = __('This feature requires Javascript but it seems to be disabled. Please enable Javascript and then reload this page. Don’t worry, you can turn it back off when you’re done.');
$interval = STATUS_INTERVAL * 1000;
foreach ( $this->blogs as $i => $blog ) {
if ( $blog['mode'] == 'init' )
$value = $start;
elseif ( $blog['mode'] == 'posts' || $blog['mode'] == 'comments' )
$value = $continue;
else
$value = $authors;
$value = esc_attr($value);
$blogtitle = esc_js( $blog['title'] );
$pdone = isset($blog['posts_done']) ? (int) $blog['posts_done'] : 0;
$cdone = isset($blog['comments_done']) ? (int) $blog['comments_done'] : 0;
$init .= "blogs[$i]=new blog($i,'$blogtitle','{$blog['mode']}'," . $this->get_js_status($i) . ');';
$pstat = "
$pdone/{$blog['total_posts']}
";
$cstat = "
$cdone/{$blog['total_comments']}
";
$rows .= "
$blogtitle
{$blog['host']}
$pstat
$cstat
\n";
}
echo "
$title
$name
$url
$posts
$comments
$action
\n$rows
";
echo "
\n";
}
// Handy function for stopping the script after a number of seconds.
function have_time() {
global $importer_started;
if ( time() - $importer_started > MAX_EXECUTION_TIME )
die('continue');
return true;
}
function get_total_results($type, $host) {
$headers = array(
"GET /feeds/$type/default?max-results=1&start-index=2 HTTP/1.0",
"Host: $host",
"Authorization: AuthSub token=\"$this->token\""
);
$request = join( "\r\n", $headers ) . "\r\n\r\n";
$sock = $this->_get_blogger_sock( $host );
if ( ! $sock ) return;
$response = $this->_txrx( $sock, $request );
$response = $this->parse_response( $response );
$parser = xml_parser_create();
xml_parse_into_struct($parser, $response['body'], $struct, $index);
xml_parser_free($parser);
$total_results = $struct[$index['OPENSEARCH:TOTALRESULTS'][0]]['value'];
return (int) $total_results;
}
function import_blog($blogID) {
global $importing_blog;
$importing_blog = $blogID;
if ( isset($_GET['authors']) )
return print($this->get_author_form());
header('Content-Type: text/plain');
if ( isset($_GET['status']) )
die($this->get_js_status());
if ( isset($_GET['saveauthors']) )
die($this->save_authors());
$blog = $this->blogs[$blogID];
$total_results = $this->get_total_results('posts', $blog['host']);
$this->blogs[$importing_blog]['total_posts'] = $total_results;
$start_index = $total_results - MAX_RESULTS + 1;
if ( isset( $this->blogs[$importing_blog]['posts_start_index'] ) )
$start_index = (int) $this->blogs[$importing_blog]['posts_start_index'];
elseif ( $total_results > MAX_RESULTS )
$start_index = $total_results - MAX_RESULTS + 1;
else
$start_index = 1;
// This will be positive until we have finished importing posts
if ( $start_index > 0 ) {
// Grab all the posts
$this->blogs[$importing_blog]['mode'] = 'posts';
$query = "start-index=$start_index&max-results=" . MAX_RESULTS;
do {
$index = $struct = $entries = array();
$headers = array(
"GET /feeds/posts/default?$query HTTP/1.0",
"Host: {$blog['host']}",
"Authorization: AuthSub token=\"$this->token\""
);
$request = join( "\r\n", $headers ) . "\r\n\r\n";
$sock = $this->_get_blogger_sock( $blog['host'] );
if ( ! $sock ) return; // TODO: Error handling
$response = $this->_txrx( $sock, $request );
$response = $this->parse_response( $response );
// Extract the entries and send for insertion
preg_match_all( '/]*>.*?<\/entry>/s', $response['body'], $matches );
if ( count( $matches[0] ) ) {
$entries = array_reverse($matches[0]);
foreach ( $entries as $entry ) {
$entry = "$entry";
$AtomParser = new AtomParser();
$AtomParser->parse( $entry );
$result = $this->import_post($AtomParser->entry);
if ( is_wp_error( $result ) )
return $result;
unset($AtomParser);
}
} else break;
// Get the 'previous' query string which we'll use on the next iteration
$query = '';
$links = preg_match_all('/]*)>/', $response['body'], $matches);
if ( count( $matches[1] ) )
foreach ( $matches[1] as $match )
if ( preg_match('/rel=.previous./', $match) )
$query = @html_entity_decode( preg_replace('/^.*href=[\'"].*\?(.+)[\'"].*$/', '$1', $match), ENT_COMPAT, get_option('blog_charset') );
if ( $query ) {
parse_str($query, $q);
$this->blogs[$importing_blog]['posts_start_index'] = (int) $q['start-index'];
} else
$this->blogs[$importing_blog]['posts_start_index'] = 0;
$this->save_vars();
} while ( !empty( $query ) && $this->have_time() );
}
$total_results = $this->get_total_results( 'comments', $blog['host'] );
$this->blogs[$importing_blog]['total_comments'] = $total_results;
if ( isset( $this->blogs[$importing_blog]['comments_start_index'] ) )
$start_index = (int) $this->blogs[$importing_blog]['comments_start_index'];
elseif ( $total_results > MAX_RESULTS )
$start_index = $total_results - MAX_RESULTS + 1;
else
$start_index = 1;
if ( $start_index > 0 ) {
// Grab all the comments
$this->blogs[$importing_blog]['mode'] = 'comments';
$query = "start-index=$start_index&max-results=" . MAX_RESULTS;
do {
$index = $struct = $entries = array();
$headers = array(
"GET /feeds/comments/default?$query HTTP/1.0",
"Host: {$blog['host']}",
"Authorization: AuthSub token=\"$this->token\""
);
$request = join( "\r\n", $headers ) . "\r\n\r\n";
$sock = $this->_get_blogger_sock( $blog['host'] );
if ( ! $sock ) return; // TODO: Error handling
$response = $this->_txrx( $sock, $request );
$response = $this->parse_response( $response );
// Extract the comments and send for insertion
preg_match_all( '/]*>.*?<\/entry>/s', $response['body'], $matches );
if ( count( $matches[0] ) ) {
$entries = array_reverse( $matches[0] );
foreach ( $entries as $entry ) {
$entry = "$entry";
$AtomParser = new AtomParser();
$AtomParser->parse( $entry );
$this->import_comment($AtomParser->entry);
unset($AtomParser);
}
}
// Get the 'previous' query string which we'll use on the next iteration
$query = '';
$links = preg_match_all('/]*)>/', $response['body'], $matches);
if ( count( $matches[1] ) )
foreach ( $matches[1] as $match )
if ( preg_match('/rel=.previous./', $match) )
$query = @html_entity_decode( preg_replace('/^.*href=[\'"].*\?(.+)[\'"].*$/', '$1', $match), ENT_COMPAT, get_option('blog_charset') );
parse_str($query, $q);
$this->blogs[$importing_blog]['comments_start_index'] = (int) $q['start-index'];
$this->save_vars();
} while ( !empty( $query ) && $this->have_time() );
}
$this->blogs[$importing_blog]['mode'] = 'authors';
$this->save_vars();
if ( !$this->blogs[$importing_blog]['posts_done'] && !$this->blogs[$importing_blog]['comments_done'] )
die('nothing');
do_action('import_done', 'blogger');
die('done');
}
function convert_date( $date ) {
preg_match('#([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(?:\.[0-9]+)?(Z|[\+|\-][0-9]{2,4}){0,1}#', $date, $date_bits);
$offset = iso8601_timezone_to_offset( $date_bits[7] );
$timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]);
$timestamp -= $offset; // Convert from Blogger local time to GMT
$timestamp += get_option('gmt_offset') * 3600; // Convert from GMT to WP local time
return gmdate('Y-m-d H:i:s', $timestamp);
}
function no_apos( $string ) {
return str_replace( ''', "'", $string);
}
function min_whitespace( $string ) {
return preg_replace( '|\s+|', ' ', $string );
}
function _normalize_tag( $matches ) {
return '<' . strtolower( $match[1] );
}
function import_post( $entry ) {
global $importing_blog;
// The old permalink is all Blogger gives us to link comments to their posts.
if ( isset( $entry->draft ) )
$rel = 'self';
else
$rel = 'alternate';
foreach ( $entry->links as $link ) {
if ( $link['rel'] == $rel ) {
$parts = parse_url( $link['href'] );
$entry->old_permalink = $parts['path'];
break;
}
}
$post_date = $this->convert_date( $entry->published );
$post_content = trim( addslashes( $this->no_apos( @html_entity_decode( $entry->content, ENT_COMPAT, get_option('blog_charset') ) ) ) );
$post_title = trim( addslashes( $this->no_apos( $this->min_whitespace( $entry->title ) ) ) );
$post_status = isset( $entry->draft ) ? 'draft' : 'publish';
// Clean up content
$post_content = preg_replace_callback('|<(/?[A-Z]+)|', array( &$this, '_normalize_tag' ), $post_content);
$post_content = str_replace(' ', ' ', $post_content);
$post_content = str_replace('', '', $post_content);
// Checks for duplicates
if ( isset( $this->blogs[$importing_blog]['posts'][$entry->old_permalink] ) ) {
++$this->blogs[$importing_blog]['posts_skipped'];
} elseif ( $post_id = post_exists( $post_title, $post_content, $post_date ) ) {
$this->blogs[$importing_blog]['posts'][$entry->old_permalink] = $post_id;
++$this->blogs[$importing_blog]['posts_skipped'];
} else {
$post = compact('post_date', 'post_content', 'post_title', 'post_status');
$post_id = wp_insert_post($post);
if ( is_wp_error( $post_id ) )
return $post_id;
wp_create_categories( array_map( 'addslashes', $entry->categories ), $post_id );
$author = $this->no_apos( strip_tags( $entry->author ) );
add_post_meta( $post_id, 'blogger_blog', $this->blogs[$importing_blog]['host'], true );
add_post_meta( $post_id, 'blogger_author', $author, true );
add_post_meta( $post_id, 'blogger_permalink', $entry->old_permalink, true );
$this->blogs[$importing_blog]['posts'][$entry->old_permalink] = $post_id;
++$this->blogs[$importing_blog]['posts_done'];
}
$this->save_vars();
return;
}
function import_comment( $entry ) {
global $importing_blog;
// Drop the #fragment and we have the comment's old post permalink.
foreach ( $entry->links as $link ) {
if ( $link['rel'] == 'alternate' ) {
$parts = parse_url( $link['href'] );
$entry->old_permalink = $parts['fragment'];
$entry->old_post_permalink = $parts['path'];
break;
}
}
$comment_post_ID = (int) $this->blogs[$importing_blog]['posts'][$entry->old_post_permalink];
preg_match('#(.+?).*(?:\(.+?))?#', $entry->author, $matches);
$comment_author = addslashes( $this->no_apos( strip_tags( (string) $matches[1] ) ) );
$comment_author_url = addslashes( $this->no_apos( strip_tags( (string) $matches[2] ) ) );
$comment_date = $this->convert_date( $entry->updated );
$comment_content = addslashes( $this->no_apos( @html_entity_decode( $entry->content, ENT_COMPAT, get_option('blog_charset') ) ) );
// Clean up content
$comment_content = preg_replace_callback('|<(/?[A-Z]+)|', array( &$this, '_normalize_tag' ), $comment_content);
$comment_content = str_replace(' ', ' ', $comment_content);
$comment_content = str_replace('', '', $comment_content);
// Checks for duplicates
if (
isset( $this->blogs[$importing_blog]['comments'][$entry->old_permalink] ) ||
comment_exists( $comment_author, $comment_date )
) {
++$this->blogs[$importing_blog]['comments_skipped'];
} else {
$comment = compact('comment_post_ID', 'comment_author', 'comment_author_url', 'comment_date', 'comment_content');
$comment_id = wp_insert_comment($comment);
$this->blogs[$importing_blog]['comments'][$entry->old_permalink] = $comment_id;
++$this->blogs[$importing_blog]['comments_done'];
}
$this->save_vars();
}
function get_js_status($blog = false) {
global $importing_blog;
if ( $blog === false )
$blog = $this->blogs[$importing_blog];
else
$blog = $this->blogs[$blog];
$p1 = isset( $blog['posts_done'] ) ? (int) $blog['posts_done'] : 0;
$p2 = isset( $blog['total_posts'] ) ? (int) $blog['total_posts'] : 0;
$c1 = isset( $blog['comments_done'] ) ? (int) $blog['comments_done'] : 0;
$c2 = isset( $blog['total_comments'] ) ? (int) $blog['total_comments'] : 0;
return "{p1:$p1,p2:$p2,c1:$c1,c2:$c2}";
}
function get_author_form($blog = false) {
global $importing_blog, $wpdb, $current_user;
if ( $blog === false )
$blog = & $this->blogs[$importing_blog];
else
$blog = & $this->blogs[$blog];
if ( !isset( $blog['authors'] ) ) {
$post_ids = array_values($blog['posts']);
$authors = (array) $wpdb->get_col("SELECT DISTINCT meta_value FROM $wpdb->postmeta WHERE meta_key = 'blogger_author' AND post_id IN (" . join( ',', $post_ids ) . ")");
$blog['authors'] = array_map(null, $authors, array_fill(0, count($authors), $current_user->ID));
$this->save_vars();
}
$directions = __('All posts were imported with the current user as author. Use this form to move each Blogger user’s posts to a different WordPress user. You may add users and then return to this page and complete the user mapping. This form may be used as many times as you like until you activate the “Restart” function below.');
$heading = __('Author mapping');
$blogtitle = "{$blog['title']} ({$blog['host']})";
$mapthis = __('Blogger username');
$tothis = __('WordPress login');
$submit = esc_js( __('Save Changes') );
foreach ( $blog['authors'] as $i => $author )
$rows .= "
";
return "
$heading
$blogtitle
$directions
";
}
function get_user_options($current) {
global $importer_users;
if ( ! isset( $importer_users ) )
$importer_users = (array) get_users_of_blog();
foreach ( $importer_users as $user ) {
$sel = ( $user->user_id == $current ) ? " selected='selected'" : '';
$options .= "";
}
return $options;
}
function save_authors() {
global $importing_blog, $wpdb;
$authors = (array) $_POST['authors'];
$host = $this->blogs[$importing_blog]['host'];
// Get an array of posts => authors
$post_ids = (array) $wpdb->get_col( $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = 'blogger_blog' AND meta_value = %s", $host) );
$post_ids = join( ',', $post_ids );
$results = (array) $wpdb->get_results("SELECT post_id, meta_value FROM $wpdb->postmeta WHERE meta_key = 'blogger_author' AND post_id IN ($post_ids)");
foreach ( $results as $row )
$authors_posts[$row->post_id] = $row->meta_value;
foreach ( $authors as $author => $user_id ) {
$user_id = (int) $user_id;
// Skip authors that haven't been changed
if ( $user_id == $this->blogs[$importing_blog]['authors'][$author][1] )
continue;
// Get a list of the selected author's posts
$post_ids = (array) array_keys( $authors_posts, $this->blogs[$importing_blog]['authors'][$author][0] );
$post_ids = join( ',', $post_ids);
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET post_author = %d WHERE id IN ($post_ids)", $user_id) );
$this->blogs[$importing_blog]['authors'][$author][1] = $user_id;
}
$this->save_vars();
wp_redirect('edit.php');
}
function _get_auth_sock() {
// Connect to https://www.google.com
if ( !$sock = @ fsockopen('ssl://www.google.com', 443, $errno, $errstr) ) {
$this->uh_oh(
__('Could not connect to https://www.google.com'),
__('There was a problem opening a secure connection to Google. This is what went wrong:'),
"$errstr ($errno)"
);
return false;
}
return $sock;
}
function _get_blogger_sock($host = 'www2.blogger.com') {
if ( !$sock = @ fsockopen($host, 80, $errno, $errstr) ) {
$this->uh_oh(
sprintf( __('Could not connect to %s'), $host ),
__('There was a problem opening a connection to Blogger. This is what went wrong:'),
"$errstr ($errno)"
);
return false;
}
return $sock;
}
function _txrx( $sock, $request ) {
fwrite( $sock, $request );
while ( ! feof( $sock ) )
$response .= @ fread ( $sock, 8192 );
fclose( $sock );
return $response;
}
function revoke($token) {
$headers = array(
"GET /accounts/AuthSubRevokeToken HTTP/1.0",
"Authorization: AuthSub token=\"$token\""
);
$request = join( "\r\n", $headers ) . "\r\n\r\n";
$sock = $this->_get_auth_sock( );
if ( ! $sock ) return false;
$this->_txrx( $sock, $request );
}
function restart() {
global $wpdb;
$options = get_option( 'blogger_importer' );
if ( isset( $options['token'] ) )
$this->revoke( $options['token'] );
delete_option('blogger_importer');
$wpdb->query("DELETE FROM $wpdb->postmeta WHERE meta_key = 'blogger_author'");
wp_redirect('?import=blogger');
}
// Returns associative array of code, header, cookies, body. Based on code from php.net.
function parse_response($this_response) {
// Split response into header and body sections
list($response_headers, $response_body) = explode("\r\n\r\n", $this_response, 2);
$response_header_lines = explode("\r\n", $response_headers);
// First line of headers is the HTTP response code
$http_response_line = array_shift($response_header_lines);
if(preg_match('@^HTTP/[0-9]\.[0-9] ([0-9]{3})@',$http_response_line, $matches)) { $response_code = $matches[1]; }
// put the rest of the headers in an array
$response_header_array = array();
foreach($response_header_lines as $header_line) {
list($header,$value) = explode(': ', $header_line, 2);
$response_header_array[$header] .= $value."\n";
}
$cookie_array = array();
$cookies = explode("\n", $response_header_array["Set-Cookie"]);
foreach($cookies as $this_cookie) { array_push($cookie_array, "Cookie: ".$this_cookie); }
return array("code" => $response_code, "header" => $response_header_array, "cookies" => $cookie_array, "body" => $response_body);
}
// Step 9: Congratulate the user
function congrats() {
$blog = (int) $_GET['blog'];
echo '
'.__('Congratulations!').'
'.__('Now that you have imported your Blogger blog into WordPress, what are you going to do? Here are some suggestions:').'
'.__('That was hard work! Take a break.').'
';
if ( count($this->import['blogs']) > 1 )
echo '
'.__('In case you haven’t done it already, you can import the posts from your other blogs:'). $this->show_blogs() . '
';
if ( $n = count($this->import['blogs'][$blog]['newusers']) )
echo '
'.sprintf(__('Go to Authors & Users, where you can modify the new user(s) or delete them. If you want to make all of the imported posts yours, you will be given that option when you delete the new authors.'), 'users.php', '_parent').'
';
echo '
'.__('For security, click the link below to reset this importer.').'
';
echo '
';
}
// Figures out what to do, then does it.
function start() {
if ( isset($_POST['restart']) )
$this->restart();
$options = get_option('blogger_importer');
if ( is_array($options) )
foreach ( $options as $key => $value )
$this->$key = $value;
if ( isset( $_REQUEST['blog'] ) ) {
$blog = is_array($_REQUEST['blog']) ? array_shift( $keys = array_keys( $_REQUEST['blog'] ) ) : $_REQUEST['blog'];
$blog = (int) $blog;
$result = $this->import_blog( $blog );
if ( is_wp_error( $result ) )
echo $result->get_error_message();
} elseif ( isset($_GET['token']) )
$this->auth();
elseif ( isset($this->token) && $this->token_is_valid() )
$this->show_blogs();
else
$this->greet();
$saved = $this->save_vars();
if ( $saved && !isset($_GET['noheader']) ) {
$restart = __('Restart');
$message = __('We have saved some information about your Blogger account in your WordPress database. Clearing this information will allow you to start over. Restarting will not affect any posts you have already imported. If you attempt to re-import a blog, duplicate posts and comments will be skipped.');
$submit = esc_attr__('Clear account information');
echo "