function smarty_block_mtotherblog($args, $content, &$ctx, &$repeat)
{
$localvars = array('local_blog_id', 'blog_id', 'blog');
if (!isset($content)) {
$blog_id = $args['blog_id'];
if (!$blog_id) {
$repeat = false;
return '';
}
$ctx->localize($localvars);
// do permission checking...
if ($blog_id) {
list($attr, $blogs) = multiblog_filter_blogs($ctx, 'include_blogs', array($args['blog_id']));
if ($attr != 'include_blogs' || !count($blogs) || $blogs[0] != $blog_id) {
$repeat = false;
$ctx->restore($localvars);
return '';
}
}
$blog = $ctx->mt->db->fetch_blog($blog_id);
$ctx->stash('blog', $blog);
$ctx->stash('blog_id', $blog_id);
} else {
$repeat = false;
}
if (!$repeat) {
$ctx->restore($localvars);
}
return $content;
}
function multiblog_filter_blogs_from_args(&$ctx, &$args)
{
# SANITY CHECK ON ARGUMENTS
# Set and clean up working variables
$incl = $args['include_blogs'];
$incl or $incl = $args['blog_ids'];
$incl or $incl = $args['blog_id'];
$excl = $args['exclude_blogs'];
# Remove spaces
$incl = preg_replace('/\\s+/', '', $incl);
$excl = preg_replace('/\\s+/', '', $excl);
# If there are no multiblog arguments to filter, we don't need to be here
if (!($incl or $excl)) {
return true;
}
# Only one multiblog argument can be used
$tagcount = 0;
$possible_args = array($args['include_blogs'], $args['blog_ids'], $args['blog_id'], $args['exclude_blogs']);
foreach ($possible_args as $arg) {
$arg != '' and $tagcount++;
}
if ($tagcount > 1) {
return false;
}
# exclude_blogs="all" is not allowed
if ($excl and $excl == 'all') {
return false;
}
# blog_id attribute only accepts a single blog ID
if ($args['blog_id'] and !preg_match('/^\\d+$/', $args['blog_id'])) {
return false;
}
# Make sure include_blogs/exclude_blogs is valid
if (($incl or $excl) != 'all' and !preg_match('/^\\d+([,-]\\d+)*$/', $incl or $excl)) {
return false;
}
# Prepare for filter_blogs
$blogs = array();
$attr = $incl ? 'include_blogs' : 'exclude_blogs';
$val = $incl ? $incl : $excl;
if (preg_match('/-/', $val)) {
# parse range blog ids out
$list = preg_split('/\\s*,\\s*/', $val);
foreach ($list as $item) {
if (preg_match('/(\\d+)-(\\d+)/', $item, $matches)) {
for ($i = $matches[1]; $i <= $matches[2]; $i++) {
$blogs[] = $i;
}
} else {
$blogs[] = $item;
}
}
} else {
$blogs = preg_split('/\\s*,\\s*/', $val);
}
# Filter the blogs using the MultiBlog access controls
list($attr, $blogs) = multiblog_filter_blogs($ctx, $attr, $blogs);
if (!($attr && count($blogs))) {
return false;
}
# Rewrite the args to the modifed value
if ($args['blog_ids']) {
unset($args['blog_ids']);
}
// Deprecated
if ($args['blog_id']) {
$args['blog_id'] = $blogs[0];
} else {
unset($args['include_blogs']);
unset($args['exclude_blogs']);
$args[$attr] = implode(',', $blogs);
}
return true;
}
