105 lines
3.6 KiB
PHP
105 lines
3.6 KiB
PHP
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<?php
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/**
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* Retrieve the avatar for a user who provided a user ID or email address.
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*
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* @since 2.5
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* @param int|string|object $id_or_email A user ID, email address, or comment object
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* @param int $size Size of the avatar image
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* @param string $default URL to a default image to use if no avatar is available
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* @param string $alt Alternate text to use in image tag. Defaults to blank
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* @return string <img> tag for the user's avatar
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*/
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function comicpress_get_avatar( $id_or_email, $size = '64', $alt = false) {
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if ( ! get_option('show_avatars') )
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return false;
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if ( false === $alt)
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$safe_alt = '';
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else
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$safe_alt = attribute_escape( $alt );
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if ( !is_numeric($size) )
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$size = '96';
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$email = '';
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if ( is_numeric($id_or_email) ) {
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$id = (int) $id_or_email;
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$user = get_userdata($id);
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if ( $user )
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$email = $user->user_email;
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} elseif ( is_object($id_or_email) ) {
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if ( isset($id_or_email->comment_type) && '' != $id_or_email->comment_type && 'comment' != $id_or_email->comment_type )
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return false; // No avatar for pingbacks or trackbacks
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if ( !empty($id_or_email->user_id) ) {
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$id = (int) $id_or_email->user_id;
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$user = get_userdata($id);
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if ( $user)
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$email = $user->user_email;
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} elseif ( !empty($id_or_email->comment_author_email) ) {
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$email = $id_or_email->comment_author_email;
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}
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} else {
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$email = $id_or_email;
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}
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if ( empty($default) ) {
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$default = comicpress_random_default_avatar((string)$id_or_email);
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if ( empty($default) || $default == 'none' ) {
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$avatar_default = get_option('avatar_default');
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if ( empty($avatar_default) )
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$default = 'mystery';
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else
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$default = $avatar_default;
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}
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}
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if ( 'mystery' == $default )
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$default = "http://www.gravatar.com/avatar/ad516503a11cd5ca435acc9bb6523536?s={$size}"; // ad516503a11cd5ca435acc9bb6523536 == md5('unknown@gravatar.com')
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elseif ( 'blank' == $default )
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$default = includes_url('images/blank.gif');
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elseif ( !empty($email) && 'gravatar_default' == $default )
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$default = '';
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elseif ( 'gravatar_default' == $default )
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$default = "http://www.gravatar.com/avatar/s={$size}";
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elseif ( empty($email) )
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$default = "http://www.gravatar.com/avatar/?d=$default&s={$size}";
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elseif ( strpos($default, 'http://') === 0 )
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$default = add_query_arg( 's', $size, $default );
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if ( !empty($email) ) {
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$out = 'http://www.gravatar.com/avatar/';
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$out .= md5( strtolower( $email ) );
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$out .= '?s='.$size;
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$out .= '&d=' . urlencode( $default );
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$rating = get_option('avatar_rating');
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if ( !empty( $rating ) )
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$out .= "&r={$rating}";
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$avatar = "<img alt='{$safe_alt}' src='{$out}' class='avatar avatar-{$size} photo' height='{$size}' width='{$size}' title='{$safe_alt}' />";
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} else {
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$avatar = "<img alt='{$safe_alt}' src='{$default}' class='avatar avatar-{$size} photo avatar-default' height='{$size}' width='{$size}' title='{$safe_alt}' />";
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}
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return apply_filters('comicpress_get_avatar', $avatar, $id_or_email, $size, $default, $alt);
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}
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function comicpress_random_default_avatar($id_or_email = '') {
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$current_avatar_directory = get_option('comicpress-avatar_directory');
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if (empty($current_avatar_directory)) $current_avatar_directory = 'default';
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$count = count($results = glob(get_template_directory() . '/images/avatars/'.$current_avatar_directory.'/*'));
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$default = '';
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$checknum = hexdec(substr(md5($id_or_email),0,5)) % $count;
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if ($count > 0) {
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$default = basename($results[(int)$checknum]);
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} else {
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return false;
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}
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return get_bloginfo('stylesheet_directory').'/images/avatars/'.$current_avatar_directory.'/'.$default;
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}
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?>
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