3 * Name: Gravatar Support
4 * Description: If there is no avatar image for a new user or contact this addon will look for one at Gravatar.
6 * Author: Klaus Weidenbach <http://friendica.dszdw.net/profile/klaus>
8 use Friendica\Core\Addon;
9 use Friendica\Core\Config;
10 use Friendica\Core\L10n;
13 * Installs the addon hook
15 function gravatar_install() {
16 Addon::registerHook('avatar_lookup', 'addon/gravatar/gravatar.php', 'gravatar_lookup');
18 logger("registered gravatar in avatar_lookup hook");
22 * Removes the addon hook
24 function gravatar_uninstall() {
25 Addon::unregisterHook('avatar_lookup', 'addon/gravatar/gravatar.php', 'gravatar_lookup');
27 logger("unregistered gravatar in avatar_lookup hook");
31 * Looks up the avatar at gravatar.com and returns the URL.
36 function gravatar_lookup($a, &$b) {
37 $default_avatar = Config::get('gravatar', 'default_img');
38 $rating = Config::get('gravatar', 'rating');
40 // setting default value if nothing configured
42 $default_avatar = 'identicon'; // default image will be a random pattern
44 $rating = 'g'; // suitable for display on all websites with any audience type
46 $hash = md5(trim(strtolower($b['email'])));
48 $url = 'https://secure.gravatar.com/avatar/' .$hash .'.jpg';
49 $url .= '?s=' .$b['size'] .'&r=' .$rating;
50 if ($default_avatar != "gravatar")
51 $url .= '&d=' .$default_avatar;
58 * Display admin settings for this addon
60 function gravatar_addon_admin (&$a, &$o) {
61 $t = get_markup_template( "admin.tpl", "addon/gravatar/" );
63 $default_avatar = Config::get('gravatar', 'default_img');
64 $rating = Config::get('gravatar', 'rating');
66 // set default values for first configuration
68 $default_avatar = 'identicon'; // pseudo-random geometric pattern based on email hash
70 $rating = 'g'; // suitable for display on all websites with any audience type
72 // Available options for the select boxes
74 'mm' => L10n::t('generic profile image'),
75 'identicon' => L10n::t('random geometric pattern'),
76 'monsterid' => L10n::t('monster face'),
77 'wavatar' => L10n::t('computer generated face'),
78 'retro' => L10n::t('retro arcade style face'),
87 // Check if Libravatar is enabled and show warning
88 $r = q("SELECT * FROM `addon` WHERE `name` = '%s' and `installed` = 1",
92 $o = '<h5>' .L10n::t('Information') .'</h5><p>' .L10n::t('Libravatar addon is installed, too. Please disable Libravatar addon or this Gravatar addon.<br>The Libravatar addon will fall back to Gravatar if nothing was found at Libravatar.') .'</p><br><br>';
95 // output Gravatar settings
96 $o .= '<input type="hidden" name="form_security_token" value="' .get_form_security_token("gravatarsave") .'">';
97 $o .= replace_macros( $t, [
98 '$submit' => L10n::t('Save Settings'),
99 '$default_avatar' => ['avatar', L10n::t('Default avatar image'), $default_avatar, L10n::t('Select default avatar image if none was found at Gravatar. See README'), $default_avatars],
100 '$rating' => ['rating', L10n::t('Rating of images'), $rating, L10n::t('Select the appropriate avatar rating for your site. See README'), $ratings],
105 * Save admin settings
107 function gravatar_addon_admin_post (&$a) {
108 check_form_security_token('gravatarsave');
110 $default_avatar = ((x($_POST, 'avatar')) ? notags(trim($_POST['avatar'])) : 'identicon');
111 $rating = ((x($_POST, 'rating')) ? notags(trim($_POST['rating'])) : 'g');
112 Config::set('gravatar', 'default_img', $default_avatar);
113 Config::set('gravatar', 'rating', $rating);
114 info(L10n::t('Gravatar settings updated.') .EOL);