/**
* This makes sure that the image is present (builds it if it isn't) and then
* displays it.
*/
function identicon_check($entity)
{
//make sure the image functions are available before trying to make avatars
if (function_exists("imagecreatetruecolor")) {
// entity is group, user or something else?
if ($entity instanceof ElggGroup) {
$file = new ElggFile();
$file->owner_guid = $entity->owner_guid;
$seed = identicon_seed($entity);
$file->setFilename('identicon/' . $seed . '/master.jpg');
$file->setMimeType('image/jpeg');
if (!$file->exists()) {
if (identicon_build_group($seed, $file)) {
return true;
} else {
// there was some error building the icon
return false;
}
} else {
// file's already there
return true;
}
} else {
if ($entity instanceof ElggUser) {
$file = new ElggFile();
$file->owner_guid = $entity->getGUID();
$seed = identicon_seed($entity);
$file->setFilename('identicon/' . $seed . '/master.jpg');
$file->setMimeType('image/jpeg');
if (!$file->exists()) {
if (identicon_build($seed, $file)) {
return true;
} else {
// there was some error building the icon
return false;
}
} else {
// file's already there
return true;
}
} else {
// neither group nor user
return false;
}
}
}
// we can't build the icon
return false;
}
function identicon_get_avatar($avatar, $id_or_email, $size, $default)
{
global $identicon;
if (!isset($identicon)) {
return $avatar;
}
$email = '';
if (is_numeric($id_or_email)) {
$id = (int) $id_or_email;
$user = get_userdata($id);
if ($user) {
$email = $user->user_email;
}
} elseif (is_object($id_or_email)) {
if (!empty($id_or_email->user_id)) {
$id = (int) $id_or_email->user_id;
$user = get_userdata($id);
if ($user) {
$email = $user->user_email;
}
} elseif (!empty($id_or_email->comment_author_email)) {
$email = $id_or_email->comment_author_email;
}
} else {
$email = $id_or_email;
}
if (!$avatar) {
return identicon_build($email, '', '', true, $size);
}
if (!$identicon->identicon_options['gravatar']) {
$identiconurl = identicon_build($email, '', false);
$newavatar = preg_replace('@src=(["\'])http://[^"\']+["\']@', 'src=\\1' . $identiconurl . '\\1', $avatar);
$avatar = $newavatar;
} elseif ($identicon->identicon_options['gravatar'] == 1) {
$identiconurl = identicon_build($email, '', false, '', true, true, $size, false);
if (strpos($avatar, 'default=http://') !== false) {
$newavatar = preg_replace('@default=http://[^&\'"]+([&\'"])@', 'default=' . urlencode($identiconurl) . '\\1', $avatar);
} else {
$newavatar = preg_replace('@(src=(["\'])http://[^?]+\\?)@', '\\1default=' . urlencode($identiconurl) . '&', $avatar);
}
$avatar = $newavatar;
}
return $avatar;
}
