implement "follow" service limits

include/follow.php

@@ -62,6 +62,11 @@ function new_contact($uid,$url,$interactive = false) {
 		}
 	}
 	
+
+
+
+
+
 	// This extra param just confuses things, remove it
 	if($ret['network'] === NETWORK_DIASPORA)
 		$ret['url'] = str_replace('?absolute=true','',$ret['url']);
@@ -89,6 +94,11 @@ function new_contact($uid,$url,$interactive = false) {
 		$ret['notify'] = '';
 	}
 
+
+
+
+
+
 	if(! $ret['notify']) {
 		$result['message'] .=  t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL;
 	}
@@ -129,6 +139,32 @@ function new_contact($uid,$url,$interactive = false) {
 	}
 	else {
 
+
+		// check service class limits
+
+		$r = q("select count(*) as total from contact where uid = %d and pending = 0 and self = 0",
+			intval($uid)
+		);
+		if(count($r))
+			$total_contacts = $r[0]['total'];
+
+		if(! service_class_allows($uid,'total_contacts',$total_contacts)) {
+			$result['message'] .= upgrade_message();
+			return $result;
+		}
+
+		$r = q("select count(network) as total from contact where uid = %d and network = '%s' and pending = 0 and self = 0",
+			intval($uid),
+			dbesc($network)
+		);
+		if(count($r))
+			$total_network = $r[0]['total'];
+
+		if(! service_class_allows($uid,'total_contacts_' . $network,$total_network)) {
+			$result['message'] .= upgrade_message();
+			return $result;
+		}
+
 		$new_relation = (($ret['network'] === NETWORK_MAIL) ? CONTACT_IS_FRIEND : CONTACT_IS_SHARING);
 		if($ret['network'] === NETWORK_DIASPORA)
 			$new_relation = CONTACT_IS_FOLLOWER;

include/plugin.php

@@ -354,3 +354,16 @@ function service_class_allows($uid,$property,$usage = false) {
 		return (((intval($usage)) < intval($arr[$property])) ? true : false);
 	}
 }
+
+function upgrade_link() {
+	$l = get_config('service_class','upgrade_link');
+	$t = sprintf('<a href="%s">' . t('Click here to upgrade.') . '</div>', $l);
+	if($l) 
+		return $t;
+	return '';
+}
+
+function upgrade_message() {
+	$x = upgrade_link();
+	return t('This action exceeds the limits set by your subscription plan.') . (($x) ? ' ' . $x : '') ;
+}

view/en/update_fail_eml.tpl

@@ -1,5 +1,5 @@
 Hey, 
-I'm $sitename.   
+I'm $sitename;   
 The friendica developers released update $update recently, 
 but when I tried to install it, something went terribly wrong.  
 This needs to be fixed soon and I can't do it alone. Please contact a