Add Gravatar plugin.

[friendica-addons.git] / gravatar / gravatar.php

diff --git a/gravatar/gravatar.php b/gravatar/gravatar.php
new file mode 100644 (file)
index 0000000..4464cd2
--- /dev/null
+++ b/gravatar/gravatar.php
@@ -0,0 +1,104 @@
+<?php
+/**
+ * Name: Gravatar Support
+ * Description: If there is no avatar image for a new user or contact this plugin will look for one at Gravatar.
+ * Version: 1.0
+ * Author: Klaus Weidenbach <http://friendica.dszdw.net/profile/klaus>
+ */
+
+/**
+ * Installs the plugin hook
+ */
+function gravatar_install() {
+       register_hook('avatar_lookup', 'addon/gravatar/gravatar.php', 'gravatar_lookup');
+
+       logger("installed gravatar");
+}
+
+/**
+ * Removes the plugin hook
+ */
+function gravatar_uninstall() {
+       unregister_hook('avatar_lookup', 'addon/gravatar/gravatar.php', 'gravatar_lookup');
+
+       logger("uninstalled gravatar");
+}
+
+/**
+ * Looks up the avatar at gravatar.com and returns the URL.
+ *
+ * @param $a array
+ * @param &$b array
+ */
+function gravatar_lookup($a, &$b) {
+       $default_avatar = get_config('gravatar', 'default_img');
+       $rating = get_config('gravatar', 'rating');
+
+       // setting default value if nothing configured
+       if(! $default_avatar)
+               $default_avatar = 'identicon'; // pseudo-random geometric pattern based on email hash
+       if(! $rating)
+               $rating = 'g'; // suitable for display on all websites with any audience type
+
+       $hash = md5(trim(strtolower($b['email'])));
+
+       $url = 'http://www.gravatar.com/avatar/' .$hash .'.jpg';
+       $url .= '?s=' .$b['size'] .'&r=' .$rating;
+       if ($default_avatar != "gravatar")
+               $url .= '&d=' .$default_avatar;
+
+       $b['url'] = $url;
+}
+
+/**
+ * Display admin settings for this addon
+ */
+function gravatar_plugin_admin (&$a, &$o) {
+       $t = file_get_contents( dirname(__file__)."/admin.tpl");
+
+       $default_avatar = get_config('gravatar', 'default_img');
+       $rating = get_config('gravatar', 'rating');
+
+       // set default values for first configuration
+       if(! $default_avatar)
+               $default_avatar = 'identicon'; // pseudo-random geometric pattern based on email hash
+       if(! $rating)
+               $rating = 'g'; // suitable for display on all websites with any audience type
+
+       // Available options for the select boxes
+       $default_avatars = array(
+               'gravatar' => 'Gravatar',
+               'mm' => 'MM',
+               'identicon' => 'Identicon',
+               'monsterid' => 'Monsterid',
+               'wavatar' => 'Wavatar',
+               'retro' => 'Retro'
+       );
+       $ratings = array(
+               'g' => 'g',
+               'pg' => 'pg',
+               'r' => 'r',
+               'x' => 'x'
+       );
+
+       $o = '<input type="hidden" name="form_security_token" value="' .get_form_security_token("gravatarsave") .'">';
+       $o .= replace_macros( $t, array(
+               '$submit' => t('Submit'),
+               '$default_avatar' => array('avatar', t('Default avatar image'), $default_avatar, t('Select default avatar image if none was found at Gravatar. See README'), $default_avatars),
+               '$rating' => array('rating', t('Rating of images'), $rating, t('Select the appropriate avatar rating for your site. See README'), $ratings),
+       ));
+}
+
+/**
+ * Save admin settings
+ */
+function gravatar_plugin_admin_post (&$a) {
+       check_form_security_token('gravatarsave');
+
+       $default_avatar = ((x($_POST, 'avatar')) ? notags(trim($_POST['avatar'])) : 'identicon');
+       $rating = ((x($_POST, 'rating')) ? notags(trim($_POST['rating'])) : 'g');
+       set_config('gravatar', 'default_img', $default_avatar);
+       set_config('gravatar', 'rating', $rating);
+       info( t('Gravatar settings updated.') .EOL);
+}
+?>