132 lines
4.4 KiB
PHP
132 lines
4.4 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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}
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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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$current_icon_directory = get_option('comicpress-icon_directory');
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if (empty($current_icon_directory)) $current_icon_directory = 'default';
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$count = count($results = glob(get_template_directory() . '/images/icons/'.$current_icon_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)$checknum]);
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} else {
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return false;
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}
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return get_bloginfo('stylesheet_directory').'/images/icons/'.$current_icon_directory.'/'.$default;
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}
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function letter_to_number($letter = '') {
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if (!empty($letter)) {
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if ($letter == 'a') $number = 1;
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if ($letter == 'b') $number = 2;
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if ($letter == 'c') $number = 3;
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if ($letter == 'd') $number = 4;
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if ($letter == 'e') $number = 5;
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if ($letter == 'f') $number = 6;
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if ($letter == 'g') $number = 7;
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if ($letter == 'h') $number = 8;
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if ($letter == 'i') $number = 9;
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if ($letter == 'j') $number = 10;
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if ($letter == 'k') $number = 11;
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if ($letter == 'l') $number = 12;
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if ($letter == 'm') $number = 13;
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if ($letter == 'n') $number = 14;
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if ($letter == 'o') $number = 15;
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if ($letter == 'p') $number = 16;
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if ($letter == 'q') $number = 17;
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if ($letter == 'r') $number = 18;
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if ($letter == 's') $number = 19;
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if ($letter == 't') $number = 20;
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if ($letter == 'u') $number = 21;
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if ($letter == 'v') $number = 22;
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if ($letter == 'w') $number = 23;
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if ($letter == 'x') $number = 24;
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if ($letter == 'y') $number = 25;
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if ($letter == 'z') $number = 26;
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} else {
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return false;
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}
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return $number;
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}
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?>
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