Add gravatar transfer tool

addons/gravatar_transfer.php

@@ -0,0 +1,84 @@
+<?php
+
+class UM_ADDON_gravatar_transfer {
+
+	function __construct() {
+		
+		add_action('admin_menu', array(&$this, 'admin_menu'), 1001);
+		
+		add_action('admin_init', array(&$this, 'admin_init'), 1);
+		
+		add_action('um_admin_addon_hook', array(&$this, 'um_admin_addon_hook') );
+
+	}
+
+   function gravatar_hash(){
+   		global $wpdb;
+   		$wpdb->query('DELETE FROM '.$wpdb->usermeta.' WHERE meta_key = "synced_gravatar_hashed_id" ');
+
+   		$wpdb->query('INSERT INTO '.$wpdb->usermeta.'(user_id, meta_key, meta_value) 
+   		SELECT ID, "synced_gravatar_hashed_id", MD5( LOWER( TRIM(user_email) ) )
+   		FROM '.$wpdb->users.' '); 
+
+   		return true;
+   }
+
+   function admin_menu() {
+		
+		global $ultimatemember;
+		$this->addon = $ultimatemember->addons['gravatar_transfer'];
+		add_submenu_page('ultimatemember', $this->addon[0], $this->addon[0], 'manage_options', 'gravatar_transfer', array(&$this, 'content') );
+		
+	}
+
+	function um_admin_addon_hook( $hook ) {
+		global $ultimatemember;
+		switch( $hook ) {
+			case 'gravatar_transfer':
+					if( $this->gravatar_hash() ){
+					  	$this->content = '<p><strong>Done. Process completed!</p>';
+					  	$result = count_users();
+						$this->content .= $result['total_users'] . ' user(s) changed.</strong></p>';
+					}
+				break;
+		}
+	}
+
+	function admin_init() {
+		if ( isset( $_REQUEST['um-addon-hook'] ) ) {
+			$hook = $_REQUEST['um-addon-hook'];
+			do_action("um_admin_addon_hook", $hook);
+		}
+	}
+	
+	function content() {
+		
+		$this->process_link = add_query_arg('um-addon-hook','gravatar_transfer');
+		
+		?>
+		
+		<div class="wrap">
+		
+			<h2>Ultimate Member <sup style="font-size:15px"><?php echo ultimatemember_version; ?></sup></h2>
+			
+			<h3><?php echo $this->addon[0]; ?></h3>
+			
+			<?php if ( isset( $this->content ) ) { 
+				echo $this->content;
+			} else { ?>
+			
+			<p>This tool allows you to add gravatars to Ultimate Member users. This can help you to link gravatar photos to user accounts with their email address.</p>
+			<p>Depending on your users database, this could take a few moments. To start the process, click the following button.</p>
+			
+			<p><a href="<?php echo $this->process_link; ?>" class="button button-primary">Start adding gravatars</a></p>
+
+			<?php } ?>
+			
+		</div><div class="clear"></div>
+		
+		<?php
+		
+	}
+}
+
+$UM_ADDON_gravatar_transfer = new UM_ADDON_gravatar_transfer();

core/um-filters-avatars.php

@@ -28,12 +28,7 @@
 
 		$avatar = um_user('profile_photo', $size);
 
-		if ( !um_profile('profile_photo') && um_get_option('use_gravatars') ) {
+		if ( ! $avatar && um_get_option('use_gravatars') ) {
-			if ( is_ssl() ) {
-				$protocol = 'https://';
-			} else {
-				$protocol = 'http://';
-			}
 			
 			$default = get_option( 'avatar_default', 'mystery' );
 			if ( $default == 'gravatar_default' ) {
@@ -45,14 +40,18 @@
 				$rating = "&r={$rating}";
 			}
 			
-			$avatar = '<img src="' . $protocol . 'gravatar.com/avatar/' . md5( um_user('user_email') ) . 
+			
-			'?d='. $default . '&amp;s=' . $size . $rating .'" class="gravatar avatar avatar-'.$size.' um-avatar" width="'.$size.'" height="'.$size.'" alt="" />';
+			$avatar_url = um_get_domain_protocol().'gravatar.com/avatar/'.um_user('synced_gravatar_hashed_id');
+		
+			$avatar = '<img src="' .$avatar_url .'?d='. $default . '&amp;s=' . $size . $rating .'" class="func-um_get_avatar gravatar avatar avatar-'.$size.' um-avatar" width="'.$size.'" height="'.$size.'" alt="" />';
 			
 		}else if( empty( $avatar ) ){
 			$default_avatar_uri = um_get_default_avatar_uri();
+
 			$avatar = '<img src="' .$default_avatar_uri  .'" class="gravatar avatar avatar-'.$size.' um-avatar" width="'.$size.'" height="'.$size.'" alt="" />';
 		}
 
 		return $avatar;
 	
-	}
+	}
+

um-init.php

@@ -52,6 +52,11 @@ class UM_API {
 			__('This add-on enables you to migrate your custom user photos from BuddyPress to use with Ultimate Member.', 'ultimatemember'),
 		);
 
+		$this->addons['gravatar_transfer'] = array(
+			__('Gravatar Transfer', 'ultimatemember'),
+			__('This add-on enables you to link gravatar photos to user accounts with their email address.', 'ultimatemember'),
+		);
+
 	}
 
 	/***