/*
* Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "OFURIHandler.h"
#import "OFDictionary.h"
#import "OFNumber.h"
#import "OFURI.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif
#import "OFArchiveURIHandler.h"
#import "OFEmbeddedURIHandler.h"
#ifdef OF_HAVE_FILES
# import "OFFileURIHandler.h"
#endif
#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_THREADS)
# import "OFHTTPURIHandler.h"
#endif
#import "OFUnsupportedProtocolException.h"
static OFMutableDictionary OF_GENERIC(OFString *, OFURIHandler *) *handlers;
#ifdef OF_HAVE_THREADS
static OFMutex *mutex;
static void
releaseMutex(void)
{
[mutex release];
}
#endif
@implementation OFURIHandler
@synthesize scheme = _scheme;
+ (void)initialize
{
if (self != [OFURIHandler class])
return;
handlers = [[OFMutableDictionary alloc] init];
#ifdef OF_HAVE_THREADS
mutex = [[OFMutex alloc] init];
atexit(releaseMutex);
#endif
[self registerClass: [OFEmbeddedURIHandler class]
forScheme: @"of-embedded"];
#ifdef OF_HAVE_FILES
[self registerClass: [OFFileURIHandler class] forScheme: @"file"];
#endif
#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_THREADS)
[self registerClass: [OFHTTPURIHandler class] forScheme: @"http"];
[self registerClass: [OFHTTPURIHandler class] forScheme: @"https"];
#endif
[self registerClass: [OFArchiveURIHandler class] forScheme: @"of-gzip"];
[self registerClass: [OFArchiveURIHandler class] forScheme: @"of-lha"];
[self registerClass: [OFArchiveURIHandler class] forScheme: @"of-tar"];
[self registerClass: [OFArchiveURIHandler class] forScheme: @"of-zip"];
}
+ (bool)registerClass: (Class)class forScheme: (OFString *)scheme
{
#ifdef OF_HAVE_THREADS
[mutex lock];
@try {
#endif
OFURIHandler *handler;
if ([handlers objectForKey: scheme] != nil)
return false;
handler = [[class alloc] initWithScheme: scheme];
@try {
[handlers setObject: handler forKey: scheme];
} @finally {
[handler release];
}
#ifdef OF_HAVE_THREADS
} @finally {
[mutex unlock];
}
#endif
return true;
}
+ (OFURIHandler *)handlerForURI: (OFURI *)URI
{
OF_KINDOF(OFURIHandler *) handler;
#ifdef OF_HAVE_THREADS
[mutex lock];
@try {
#endif
handler = [handlers objectForKey: URI.scheme];
#ifdef OF_HAVE_THREADS
} @finally {
[mutex unlock];
}
#endif
if (handler == nil)
@throw [OFUnsupportedProtocolException exceptionWithURI: URI];
return handler;
}
+ (OFStream *)openItemAtURI: (OFURI *)URI mode: (OFString *)mode
{
return [[self handlerForURI: URI] openItemAtURI: URI mode: mode];
}
- (instancetype)init
{
OF_INVALID_INIT_METHOD
}
- (instancetype)initWithScheme: (OFString *)scheme
{
self = [super init];
@try {
_scheme = [scheme copy];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_scheme release];
[super dealloc];
}
- (OFStream *)openItemAtURI: (OFURI *)URI mode: (OFString *)mode
{
OF_UNRECOGNIZED_SELECTOR
}
- (OFFileAttributes)attributesOfItemAtURI: (OFURI *)URI
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)setAttributes: (OFFileAttributes)attributes ofItemAtURI: (OFURI *)URI
{
OF_UNRECOGNIZED_SELECTOR
}
- (bool)fileExistsAtURI: (OFURI *)URI
{
OF_UNRECOGNIZED_SELECTOR
}
- (bool)directoryExistsAtURI: (OFURI *)URI
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)createDirectoryAtURI: (OFURI *)URI
{
OF_UNRECOGNIZED_SELECTOR
}
- (OFArray OF_GENERIC(OFURI *) *)contentsOfDirectoryAtURI: (OFURI *)URI
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)removeItemAtURI: (OFURI *)URI
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)linkItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)createSymbolicLinkAtURI: (OFURI *)destination
withDestinationPath: (OFString *)source
{
OF_UNRECOGNIZED_SELECTOR
}
- (bool)copyItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
return false;
}
- (bool)moveItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
return false;
}
@end