More internal changes

git-svn-id: file:///svn/phpbb/trunk@409 89ea8834-ac86-4346-8a33-228a782c2dd0

phpBB/includes/auth.php

@@ -24,7 +24,7 @@
 
 /*
 	$type's accepted (eventually!):
-	VIEW, READ, POST, REPLY, EDIT, DELETE, VOTE, VOTECREATE, MOD, ADMIN
+	VIEW, READ, POST, REPLY, EDIT, DELETE, VOTE, VOTECREATE
 
 	Possible options to send to auth (not all are functional yet!):
 
@@ -108,12 +108,30 @@ function auth($type, $forum_id, $userdata, $f_access = -1)
 	if($f_access == -1)
 	{
 		$forum_match_sql = ($forum_id != AUTH_LIST_ALL) ? "WHERE aa.forum_id = $forum_id" : "";
-		$sql = "SELECT $a_sql 
+		$sql = "SELECT aa.forum_id, $a_sql 
 			FROM ".AUTH_FORUMS_TABLE." aa 
 			$forum_match_sql";
 		$af_result = $db->sql_query($sql);
 
-		$f_access = $db->sql_fetchrow($af_result);
+		if(!$af_result)
+		{
+			error_die(QUERY_ERROR, "Failed obtaining forum access control lists");
+		}
+		else
+		{
+			if(!$db->sql_numrows($af_result))
+			{
+				error_die(GENERAL_ERROR, "No forum access control lists exist!");
+			}
+			else
+			{
+				$f_access = $db->sql_fetchrowset($af_result);
+			}
+		}
+	}
+	else
+	{
+
 	}
 
 	//
@@ -123,24 +141,24 @@ function auth($type, $forum_id, $userdata, $f_access = -1)
 	// they're good to go, if not then they
 	// are denied access
 	//
+	$auth_user = array();
+
 	if(!$userdata['session_logged_in'])
 	{
-		$auth_user = array();
+		for($j = 0; $j < count($auth_fields); $j++)
+		{
+			$key = $auth_fields[$j];
 
 			if($forum_id != AUTH_LIST_ALL)
 			{
-			for($i = 0; $i < count($f_access); $i++)
+				$auth_user[$key] = ($f_access[$key] == AUTH_ALL) ? 1 : 0;
-			{
-				$auth_user[$auth_fields[$i]] = ($f_access[$auth_fields[$i]] == AUTH_ALL) ? 1 : 0;
-			}
 			}
 			else
 			{
 				for($i = 0; $i < count($f_access); $i++)
 				{
-				for($j = 0; $j < count($auth_fields); $j++)
+					$forum_id = $f_access[$i]['forum_id'];
-				{
+					$auth_user[$forum_id][$key] = ($f_access[$i][$key] == AUTH_ALL) ? 1 : 0;
-					$auth_user[$f_access[$i]['forum_id']][$auth_fields[$j]] = ($f_access[$i][$auth_fields[$j]] == AUTH_ALL) ? 1 : 0;
 				}
 			}
 		}
@@ -155,131 +173,152 @@ function auth($type, $forum_id, $userdata, $f_access = -1)
 				AND aa.group_id = ug.group_id 
 				$forum_match_sql";
 		$au_result = $db->sql_query($sql);
-		$u_access = $db->sql_fetchrowset($au_result);
+		if(!$au_result)
+		{
+			error_die(QUERY_ERROR, "Failed obtaining forum access control lists");
+		}
 
-		$num_forums = (is_array($f_access[0])) ? count($f_access) : 1;
+		$num_u_access = $db->sql_numrows($au_result);
+		if($num_u_access)
+		{
+			$u_access = $db->sql_fetchrowset($au_result);
+		}
 
 		$is_admin = ($userdata['user_level'] == ADMIN) ? 1 : 0;
-
 		$auth_user = array();
-		for($k = 0; $k < $num_forums; $k++)
+
-		{
 		for($i = 0; $i < count($auth_fields); $i++)
 		{
 			$key = $auth_fields[$i];
-				$value = ($forum_id != AUTH_LIST_ALL) ? $f_access[$key] : $f_access[$f_access[$k]['forum_id']][$key];
+			$value = ($forum_id != AUTH_LIST_ALL) ? $f_access[$key] : $f_access[$k][$key];
 
-				//
+			if(!$num_u_access)
-				// If the user is logged on and the forum
-				// type is either ALL or REG then the user
-				// has access
-				//
-				if($value == AUTH_ALL || $value == AUTH_REG)
 			{
+				//
+				// If no rows for this user where
+				// returned then auth is only true
+				// if the key has a value of ALL || REG
+				//
+				if($forum_id != AUTH_LIST_ALL)
+				{
+					$auth_user[$key] = ($value == AUTH_ALL || $value == AUTH_REG) ? 1 : 0;
+				}
+				else
+				{
+					for($k = 0; $k < count($f_access); $k++)
+					{
+						$f_forum_id = $f_access[$k]['forum_id'];
+						$auth_user[$f_forum_id][$key] = ($value == AUTH_ALL || $value == AUTH_REG) ? 1 : 0;
+					}
+				}
+			}
+			else 
+			{
+				//
+				// If the user is logged on and the forum type is either
+				// ALL or REG then the user has access
+				//
+				// If the type if ACL, MOD or ADMIN then we need to see
+				// if the user has specific permissions to do whatever it
+				// is they want to do ... to do this we pull relevant
+				// information for the user (and any groups they belong to)
+				//
+				// Now we compare the users access level against the forums
+				// We assume here that a moderator and admin automatically
+				// have access to an ACL forum, similarly we assume admins
+				// meet an auth requirement of MOD
+				//
+				// The access level assigned to a single user automatically 
+				// takes precedence over any levels granted by that user being
+				// a member of a multi-user usergroup, eg. a user who is banned
+				// from a forum won't gain access to it even if they belong to
+				// a group which has access (and vice versa). This check is
+				// done via the single_user check
+				//
+				// PS : I appologise for the fantastically clear and hugely
+				// readable code here ;) Simple gist is, if this row of
+				// auth_access doesn't represent a single user then OR the
+				// contents of relevant auth_access levels against the current
+				// level (allows maximum group privileges to be assigned). If
+				// the row does represent a single user then forget any previous
+				// group results and instead set the auth to whatever the OR'd
+				// contents of the access levels are.
+				//
+
+				switch($value)
+				{
+					case AUTH_ALL:
 						if($forum_id != AUTH_LIST_ALL)
 						{
 							$auth_user[$key] = 1;
 						}
 						else
 						{
-						$auth_user[$f_access[$k]['forum_id']][$key] = 1;
+							for($k = 0; $k < count($f_access); $k++)
+							{
+								$f_forum_id = $f_access[$k]['forum_id'];
+								$auth_user[$f_forum_id][$key] = 1;
 							}
 						}
-				else
+						break;
-				{
-					//
-					// If the type if ACL, MOD or ADMIN
-					// then we need to see if the user has
-					// specific permissions to do whatever it
-					// is they want to do ... to do this
-					// we pull relevant information for the user
-					// (and any groups they belong to)
-					//
-		
-					$single_user = 0;
-
-					//
-					// Now we compare the users access level
-					// against the forums We assume here that
-					// a moderator and admin automatically have
-					// access to an ACL forum, similarly we assume
-					// admins meet an auth requirement of MOD
-					//
-					// The access level assigned to a single user
-					// automatically takes precedence over any
-					// levels granted by that user being a member
-					// of a multi-user usergroup, eg. a user
-					// who is banned from a forum won't gain
-					// access to it even if they belong to a group
-					// which has access (and vice versa). This
-					// check is done via the single_user check
-					//
-					// PS : I appologise for the fantastically clear
-					// and hugely readable code here ;) Simple gist
-					// is, if this row of auth_access doesn't represent
-					// a single user then OR the contents of relevant auth_access
-					// levels against the current level (allows
-					// maximum group privileges to be assigned). If
-					// the row does represent a single user then forget
-					// any previous group results and instead set
-					// the auth to whatever the OR'd contents of the
-					// access levels are.
-					//
-					switch($value)
-					{
-						case AUTH_ACL:
-							for($j = 0; $j < count($u_access); $j++)
-							{
-								if(!$single_user)
-								{
-									$single_user = $u_access[$j]['group_single_user'];
-
-									$result = (!$single_user) ? ($auth_user[$key] || $u_access[$j][$key] ||	 $u_access[$i]['auth_mod'] || $is_admin) : ($u_access[$j][$key] || $u_access[$i]['auth_mod'] || $is_admin);
 
+					case AUTH_REG:
 						if($forum_id != AUTH_LIST_ALL)
 						{
-										$auth_user[$key] = $result;
+							$auth_user[$key] = 1;
 						}
 						else
 						{
-										$auth_user[$f_access[$k]['forum_id']][$key] = $result;
+							for($k = 0; $k < count($f_access); $k++)
+							{
+								$f_forum_id = $f_access[$k]['forum_id'];
+								$auth_user[$f_forum_id][$key] = 1;
 							}
 						}
+						break;
+
+					case AUTH_ACL:
+						if($forum_id != AUTH_LIST_ALL)
+						{
+							$auth_user[$key] = auth_check_user(AUTH_ACL, $key, $u_access, $is_admin);
+						}
+						else
+						{
+							for($k = 0; $k < count($f_access); $k++)
+							{
+								$f_forum_id = $f_access[$k]['forum_id'];
+								$auth_user[$f_forum_id][$key] = auth_check_user(AUTH_ACL, $key, $u_access, $is_admin);
+							}
 						}
 						break;
 		
 					case AUTH_MOD:
-							for($j = 0; $j < count($u_access); $j++)
-							{
-								if(!$single_user)
-								{
-									$single_user = $u_access[$j]['group_single_user'];
-
-									$auth_user[$key] = (!$single_user) ? ($auth_user[$key] || $u_access[$j]['auth_mod'] || $is_admin) : ($u_access[$j]['auth_mod'] || $is_admin);
-
 						if($forum_id != AUTH_LIST_ALL)
 						{
-										$auth_user[$key] = $result;
+							$auth_user[$key] = auth_check_user(AUTH_ACL, $key, $u_access, $is_admin);
 						}
 						else
 						{
-										$auth_user[$f_access[$k]['forum_id']][$key] = $result;
+							for($k = 0; $k < count($f_access); $k++)
-									}
+							{
+								$f_forum_id = $f_access[$k]['forum_id'];
+								$auth_user[$f_forum_id][$key] = auth_check_user(AUTH_ACL, $key, $u_access, $is_admin);
 							}
 						}
 						break;
 	
 					case AUTH_ADMIN:
-							//
-							// Pretty redundant right now ...
-							// 
 						if($forum_id != AUTH_LIST_ALL)
 						{
 							$auth_user[$key] = $is_admin;
 						}
 						else
 						{
-								$auth_user[$f_access[$k]['forum_id']][$key] = $is_admin;
+							for($k = 0; $k < count($f_access); $k++)
+							{
+								$f_forum_id = $f_access[$k]['forum_id'];
+								$auth_user[$f_forum_id][$key] = $is_admin;
+							}
 						}
 						break;
 
@@ -290,7 +329,11 @@ function auth($type, $forum_id, $userdata, $f_access = -1)
 						}
 						else
 						{
-								$auth_user[$f_access[$k]['forum_id']][$key] = 0;
+							for($k = 0; $k < count($f_access); $k++)
+							{
+								$f_forum_id = $f_access[$k]['forum_id'];
+								$auth_user[$f_forum_id][$key] = 0;
+							}
 						}
 						break;
 				}
@@ -299,23 +342,16 @@ function auth($type, $forum_id, $userdata, $f_access = -1)
 		//
 		// Is user a moderator?
 		//
-			$single_user = 0;
-			for($j = 0; $j < count($u_access); $j++)
-			{
-				if(!$single_user)
-				{
-					$single_user = $u_access[$j]['group_single_user'];	
-
-					$result = (!$single_user) ? ($auth_user['auth_mod'] || $u_access[$j]['auth_mod'] || $is_admin) : ($u_access[$j]['auth_mod'] || $is_admin);
-
 		if($forum_id != AUTH_LIST_ALL)
 		{
-						$auth_user['auth_mod'] = $result;
+			$auth_user['auth_mod'] = auth_check_user(AUTH_MOD, 'auth_mod', $u_access, $is_admin);
 		}
 		else
 		{
-						$auth_user[$f_access[$k]['forum_id']]['auth_mod'] = $result;
+			for($k = 0; $k < count($f_access); $k++)
-					}
+			{
+				$f_forum_id = $f_access[$k]['forum_id'];
+				$auth_user[$f_forum_id]['auth_mod'] = auth_check_user(AUTH_MOD, 'auth_mod', $u_access, $is_admin);
 			}
 		}
 
@@ -329,16 +365,49 @@ function auth($type, $forum_id, $userdata, $f_access = -1)
 		}
 		else
 		{
-				$auth_user[$f_access[$k]['forum_id']]['auth_admin'] = $is_admin;
+			for($k = 0; $k < count($f_access); $k++)
+			{
+				$f_forum_id = $f_access[$k]['forum_id'];
+				$auth_user[$f_forum_id]['auth_admin'] = $is_admin;
 			}
 		}
 	}
 
-	//
+	return $auth_user;
-	// This currently only returns 1 or 0
+
-	// however it will also return an array if a listing
+}
-	// of all forums to which a user has access was requested.
+
-	// 
+function auth_check_user($type, $key, $u_access, $is_admin)
+{
+
+	$single_user = 0;
+	$auth_user = 0;
+
+	for($j = 0; $j < count($u_access); $j++)
+	{
+		if(!$single_user)
+		{
+			$single_user = $u_access[$j]['group_single_user'];
+			
+			$result = 0;
+			switch($type)
+			{
+				case AUTH_ACL:
+					$result = $u_access[$j][$key];
+
+				case AUTH_MOD:
+					$result = $result || $u_access[$j]['auth_mod'];
+
+				case AUTH_ADMIN:
+					$result = $result || $is_admin;
+					break;
+			}
+
+			$auth_user = (!$single_user) ? ( $auth_user || $result ) : $result;
+
+		}
+	}
+	
 	return $auth_user;
 }