Some documentation, fix chatroom service class lookup.

Add some Doxygen documentation and fixing a service class lookup for
chatroom_create().

2 files changed, 69 insertions, 29 deletions

diff --git a/include/account.php b/include/account.php
index 19c13d5bd..5793c2724 100644
--- a/include/account.php
+++ b/include/account.php
@@ -559,7 +559,7 @@ function downgrade_accounts() {
 // or what the subscriber is not allowed to do. 
 
 
-function service_class_allows($uid,$property,$usage = false) {
+function service_class_allows($uid, $property, $usage = false) {
 	$a = get_app();
 	if($uid == local_channel()) {
 		$service_class = $a->account['account_service_class'];
@@ -586,13 +586,26 @@ function service_class_allows($uid,$property,$usage = false) {
 	else {
 		if(! array_key_exists($property,$arr))
 			return true;
+
 		return (((intval($usage)) < intval($arr[$property])) ? true : false);
 	}
 }
 
-// like service_class_allows but queries by account rather than channel
-function account_service_class_allows($aid,$property,$usage = false) {
-	$a = get_app();
+/**
+ * @brief Checks service class restrictions by account_id.
+ *
+ * Like service_class_allows() but queries by account rather than channel.
+ *
+ * @see service_class_allows()
+ *
+ * @param int $aid account_id
+ * @param string $property
+ * @param int|boolean $usage, default false
+ * @return boolean
+ *
+ * @todo Can't we use here internally account_service_class_fetch() to reduce duplicate code?
+ */
+function account_service_class_allows($aid, $property, $usage = false) {
 	$r = q("select account_service_class as service_class from account where account_id = %d limit 1",
 		intval($aid)
 	);
@@ -603,21 +616,33 @@ function account_service_class_allows($aid,$property,$usage = false) {
 	if(! x($service_class))
 		return true; // everything is allowed
 
-	$arr = get_config('service_class',$service_class);
+	$arr = get_config('service_class', $service_class);
 	if(! is_array($arr) || (! count($arr)))
 		return true;
 
 	if($usage === false)
 		return ((x($arr[$property])) ? (bool) $arr[$property] : true);
 	else {
-		if(! array_key_exists($property,$arr))
+		if(! array_key_exists($property, $arr))
 			return true;
+
 		return (((intval($usage)) < intval($arr[$property])) ? true : false);
 	}
 }
 
-
-function service_class_fetch($uid,$property) {
+/**
+ * @brief Fetches a service class for a channel_id and property.
+ *
+ * This method not just checks if a service class is allowed like service_class_allows(),
+ * but also returns the service class value.
+ * If no service class is available it returns false and everything should be
+ * allowed.
+ *
+ * @param int $uid channel_id
+ * @param string $property
+ * @return boolean|int
+ */
+function service_class_fetch($uid, $property) {
 	$a = get_app();
 	if($uid == local_channel()) {
 		$service_class = $a->account['account_service_class'];
@@ -635,17 +660,17 @@ function service_class_fetch($uid,$property) {
 	if(! x($service_class))
 		return false; // everything is allowed
 
-	$arr = get_config('service_class',$service_class);
+	$arr = get_config('service_class', $service_class);
 
 	if(! is_array($arr) || (! count($arr)))
 		return false;
 
-	return((array_key_exists($property,$arr)) ? $arr[$property] : false);
+	return((array_key_exists($property, $arr)) ? $arr[$property] : false);
 }
 
 // like service_class_fetch but queries by account rather than channel
 
-function account_service_class_fetch($aid,$property) {
+function account_service_class_fetch($aid, $property) {
 
 	$r = q("select account_service_class as service_class from account where account_id = %d limit 1",
 		intval($aid)
@@ -657,12 +682,12 @@ function account_service_class_fetch($aid,$property) {
 	if(! x($service_class))
 		return false; // everything is allowed
 
-	$arr = get_config('service_class',$service_class);
+	$arr = get_config('service_class', $service_class);
 
 	if(! is_array($arr) || (! count($arr)))
 		return false;
 
-	return((array_key_exists($property,$arr)) ? $arr[$property] : false);
+	return((array_key_exists($property, $arr)) ? $arr[$property] : false);
 }
 
 
diff --git a/include/chat.php b/include/chat.php
index b19d495bb..05bb02bb9 100644
--- a/include/chat.php
+++ b/include/chat.php
@@ -1,7 +1,20 @@
-<?php /** @file */
+<?php
+/**
+ * @file include/chat.php
+ * @brief Chat related functions.
+ */
 
 
-function chatroom_create($channel,$arr) {
+/**
+ * @brief Creates a chatroom.
+ *
+ * @param array $channel
+ * @param array $arr
+ * @return An associative array containing:
+ *  - success: A boolean
+ *  - message: (optional) A string
+ */
+function chatroom_create($channel, $arr) {
 
 	$ret = array('success' => false);
 
@@ -24,14 +37,14 @@ function chatroom_create($channel,$arr) {
 		intval($channel['channel_account_id'])
 	);
 	if($r)
-		 $limit = service_class_fetch($channel_id,'chatrooms');
+		$limit = service_class_fetch($channel['channel_id'], 'chatrooms');
 
-    if(($r) && ($limit !== false) && ($r[0]['total'] >= $limit)) {
-        $ret['message'] = upgrade_message();
-        return $ret;
-    }
+	if(($r) && ($limit !== false) && ($r[0]['total'] >= $limit)) {
+		$ret['message'] = upgrade_message();
+		return $ret;
+	}
 
-	if(! array_key_exists('expire',$arr))
+	if(! array_key_exists('expire', $arr))
 		$arr['expire'] = 120;  // minutes, e.g. 2 hours
 
 	$created = datetime_convert();
@@ -60,6 +73,7 @@ function chatroom_create($channel,$arr) {
 function chatroom_destroy($channel,$arr) {
 
 	$ret = array('success' => false);
+
 	if(intval($arr['cr_id']))
 		$sql_extra = " and cr_id = " . intval($arr['cr_id']) . " ";
 	elseif(trim($arr['cr_name']))
@@ -72,7 +86,7 @@ function chatroom_destroy($channel,$arr) {
 	$r = q("select * from chatroom where cr_uid = %d $sql_extra limit 1",
 		intval($channel['channel_id'])
 	);
-	if(! $r) {		
+	if(! $r) {
 		$ret['message'] = t('Invalid room specifier.');
 		return $ret;
 	}
@@ -88,12 +102,13 @@ function chatroom_destroy($channel,$arr) {
 			intval($r[0]['cr_id'])
 		);
 	}
+
 	$ret['success'] = true;
 	return $ret;
 }
 
 
-function chatroom_enter($observer_xchan,$room_id,$status,$client) {
+function chatroom_enter($observer_xchan, $room_id, $status, $client) {
 
 	if(! $room_id || ! $observer_xchan)
 		return;
@@ -117,7 +132,7 @@ function chatroom_enter($observer_xchan,$room_id,$status,$client) {
 		return false;
 	}
 
-	$limit = service_class_fetch($r[0]['cr_uid'],'chatters_inroom');
+	$limit = service_class_fetch($r[0]['cr_uid'], 'chatters_inroom');
 	if($limit !== false) {
 		$y = q("select count(*) as total from chatpresence where cp_room = %d",
 				intval($room_id)
@@ -157,12 +172,12 @@ function chatroom_enter($observer_xchan,$room_id,$status,$client) {
 		dbesc($status),
 		dbesc($client)
 	);
-	
+
 	return $r;
 }
 
 
-function chatroom_leave($observer_xchan,$room_id,$client) {
+function chatroom_leave($observer_xchan, $room_id, $client) {
 	if(! $room_id || ! $observer_xchan)
 		return;
 
@@ -208,7 +223,7 @@ function chatroom_list_count($uid) {
  * It is the caller's responsibility to enter the room.
  */
 
-function chat_message($uid,$room_id,$xchan,$text) {
+function chat_message($uid, $room_id, $xchan, $text) {
 
 	$ret = array('success' => false);
 
@@ -230,14 +245,14 @@ function chat_message($uid,$room_id,$xchan,$text) {
 		'chat_text' => $text
 	);
 
-	call_hooks('chat_message',$arr);
+	call_hooks('chat_message', $arr);
 
 	$x = q("insert into chat ( chat_room, chat_xchan, created, chat_text )
 		values( %d, '%s', '%s', '%s' )",
 		intval($room_id),
 		dbesc($xchan),
 		dbesc(datetime_convert()),
-		dbesc($arr['chat_text'])		
+		dbesc($arr['chat_text'])
 	);
 
 	$ret['success'] = true;