ObjFW  Check-in [23272e6d43]

 */

#include "config.h"

#import "OFApplication.h"
#import "OFFile.h"
#import "OFFileManager.h"
#import "OFURI.h"
#import "OFXMLElement.h"

#import "FuncArrayGenerator.h"
#import "GlueGenerator.h"
#import "LinkLibGenerator.h"

@interface LibraryGenerator: OFObject <OFApplicationDelegate>
@end

OF_APPLICATION_DELEGATE(LibraryGenerator)

@implementation LibraryGenerator
- (void)applicationDidFinishLaunching: (OFNotification *)notification
{
	OFURI *sourcesURI = [[OFFileManager defaultManager].currentDirectoryURI
	    URIByAppendingPathComponent: @"../../src"];
	OFURI *runtimeLibraryURI = [sourcesURI
	    URIByAppendingPathComponent: @"runtime/amiga-library.xml"];
	OFURI *runtimeLinkLibURI = [sourcesURI
	    URIByAppendingPathComponent: @"runtime/linklib/linklib.m"];
	OFURI *runtimeGlueHeaderURI = [sourcesURI
	    URIByAppendingPathComponent: @"runtime/amiga-glue.h"];
	OFURI *runtimeGlueURI = [sourcesURI
	    URIByAppendingPathComponent: @"runtime/amiga-glue.m"];
	OFURI *runtimeFuncArrayURI = [sourcesURI
	    URIByAppendingPathComponent: @"runtime/amiga-funcarray.inc"];
	OFXMLElement *runtimeLibrary = [OFXMLElement elementWithStream:
	    [OFFile fileWithPath: runtimeLibraryURI.fileSystemRepresentation
			    mode: @"r"]];
	OFFile *runtimeLinkLib =
	    [OFFile fileWithPath: runtimeLinkLibURI.fileSystemRepresentation
			    mode: @"w"];
	OFFile *runtimeGlueHeader =
	    [OFFile fileWithPath: runtimeGlueHeaderURI.fileSystemRepresentation
			    mode: @"w"];
	OFFile *runtimeGlue =
	    [OFFile fileWithPath: runtimeGlueURI.fileSystemRepresentation
			    mode: @"w"];
	OFFile *runtimeFuncArray =
	    [OFFile fileWithPath: runtimeFuncArrayURI.fileSystemRepresentation
			    mode: @"w"];
	LinkLibGenerator *runtimeLinkLibGenerator = [[[LinkLibGenerator alloc]
	    initWithLibrary: runtimeLibrary
	     implementation: runtimeLinkLib] autorelease];
	GlueGenerator *runtimeGlueGenerator = [[[GlueGenerator alloc]
	    initWithLibrary: runtimeLibrary
		     header: runtimeGlueHeader

 * file.
 */

#include "config.h"

#include <string.h>

#import "OFString.h"
#import "OFArray.h"
#import "OFApplication.h"
#import "OFURI.h"
#import "OFHTTPRequest.h"
#import "OFHTTPResponse.h"
#import "OFHTTPClient.h"
#import "OFFile.h"
#import "OFStdIOStream.h"

#import "OFOutOfRangeException.h"

#import "TableGenerator.h"
#import "copyright.h"

static OFString *const unicodeDataURI =
    @"http://www.unicode.org/Public/UNIDATA/UnicodeData.txt";
static OFString *const caseFoldingURI =
    @"http://www.unicode.org/Public/UNIDATA/CaseFolding.txt";

OF_APPLICATION_DELEGATE(TableGenerator)

@implementation TableGenerator
- (instancetype)init
{

- (void)applicationDidFinishLaunching: (OFNotification *)notification
{
	OFHTTPRequest *request;

	[OFStdOut writeString: @"Downloading UnicodeData.txt…"];
	_state = stateUnicodeData;
	request = [OFHTTPRequest requestWithURI:
	    [OFURI URIWithString: unicodeDataURI]];
	[_HTTPClient asyncPerformRequest: request];
}

-      (void)client: (OFHTTPClient *)client
  didPerformRequest: (OFHTTPRequest *)request
	   response: (OFHTTPResponse *)response
	  exception: (id)exception

	[self applyDecompositionRecursivelyForTable: _decompositionTable];
	[self applyDecompositionRecursivelyForTable: _decompositionCompatTable];

	[OFStdOut writeLine: @" done"];

	[OFStdOut writeString: @"Downloading CaseFolding.txt…"];
	_state = stateCaseFolding;
	request = [OFHTTPRequest requestWithURI:
	    [OFURI URIWithString: caseFoldingURI]];
	[_HTTPClient asyncPerformRequest: request];
}

- (void)parseCaseFolding: (OFHTTPResponse *)response
{
	OFString *line;

			objc_autoreleasePoolPop(pool);
		}
	} while (!done);
}

- (void)writeFiles
{
	OFURI *URI;

	[OFStdOut writeString: @"Writing files…"];

	URI = [OFURI fileURIWithPath: @"../../src/unicode.m"];
	[self writeTablesToFile: URI.fileSystemRepresentation];

	URI = [OFURI fileURIWithPath: @"../../src/unicode.h"];
	[self writeHeaderToFile: URI.fileSystemRepresentation];

	[OFStdOut writeLine: @" done"];

	[OFApplication terminate];
}

- (void)writeTablesToFile: (OFString *)path

       OFConstantString.m		\
       OFCountedSet.m			\
       OFData.m				\
       OFData+CryptographicHashing.m	\
       OFData+MessagePackParsing.m	\
       OFDate.m				\
       OFDictionary.m			\
       OFEmbeddedURIHandler.m		\
       OFEnumerator.m			\
       OFFileManager.m			\
       OFGZIPStream.m			\
       OFHMAC.m				\
       OFINICategory.m			\
       OFINIFile.m			\


       OFInflate64Stream.m		\
       OFInflateStream.m		\
       OFInvocation.m			\
       OFLHAArchive.m			\
       OFLHAArchiveEntry.m		\
       OFList.m				\
       OFLocale.m			\
       OFMD5Hash.m			\
       OFMapTable.m			\
       OFMemoryStream.m			\
       OFMessagePackExtension.m		\
       OFMethodSignature.m		\
       OFMutableArray.m			\
       OFMutableData.m			\
       OFMutableDictionary.m		\

       OFMutableLHAArchiveEntry.m	\
       OFMutablePair.m			\
       OFMutableSet.m			\
       OFMutableString.m		\
       OFMutableTarArchiveEntry.m	\
       OFMutableTriple.m		\
       OFMutableURI.m			\
       OFMutableZIPArchiveEntry.m	\
       OFNotification.m			\
       OFNotificationCenter.m		\
       OFNull.m				\
       OFNumber.m			\
       OFObject.m			\
       OFObject+KeyValueCoding.m	\

       OFSettings.m			\
       OFSystemInfo.m			\
       OFTarArchive.m			\
       OFTarArchiveEntry.m		\
       OFThread.m			\
       OFTimer.m			\
       OFTriple.m			\
       OFURI.m				\
       OFURIHandler.m			\
       OFUUID.m				\
       OFValue.m			\
       OFXMLAttribute.m			\
       OFXMLCDATA.m			\
       OFXMLCharacters.m		\
       OFXMLComment.m			\
       OFXMLElement.m			\

	    objfw-defs.h			\
	    platform.h				\
	    ${USE_INCLUDES_ATOMIC}

SRCS += OFASPrintF.m			\
	OFAdjacentArray.m		\
	OFAdjacentSubarray.m		\
	OFArchiveURIHandler.m		\
	OFBase64.m			\
	OFBitSetCharacterSet.m		\
	OFBytesValue.m			\
	OFCRC16.m			\
	OFCRC32.m			\
	OFCountedMapTableSet.m		\
	OFHuffmanTree.m			\

	OFStrPTime.m			\
	OFSubarray.m			\
	OFUTF8String.m			\
	${LIBBASES_M}			\
	${RUNTIME_AUTORELEASE_M}	\
	${RUNTIME_INSTANCE_M}		\
	${UNICODE_M}
SRCS_FILES += OFFileURIHandler.m
SRCS_SOCKETS += OFAsyncIPSocketConnector.m		\
		OFDNSResolverSettings.m			\
		${OF_EPOLL_KERNEL_EVENT_OBSERVER_M}	\
		OFHTTPURIHandler.m			\
		OFHostAddressResolver.m			\
		OFKernelEventObserver.m			\
		${OF_KQUEUE_KERNEL_EVENT_OBSERVER_M}	\
		${OF_POLL_KERNEL_EVENT_OBSERVER_M}	\
		${OF_SELECT_KERNEL_EVENT_OBSERVER_M}	\
		OFTCPSocketSOCKS5Connector.m
SRCS_WINDOWS += platform/Windows/OFWin32ConsoleStdIOStream.m	\

 *
 * 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.
 */

#import "OFURIHandler.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFArchiveURIHandler: OFURIHandler
@end

#ifdef __cplusplus
extern "C" {
#endif
extern OFURI *OFArchiveURIHandlerURIForFileInArchive(OFString *, OFString *,
    OFURI *);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

 * file.
 */

#include "config.h"

#include <errno.h>

#import "OFArchiveURIHandler.h"
#import "OFCharacterSet.h"
#import "OFGZIPStream.h"

#import "OFLHAArchive.h"
#import "OFStream.h"
#import "OFTarArchive.h"
#import "OFURI.h"
#import "OFZIPArchive.h"

#import "OFInvalidArgumentException.h"
#import "OFOpenItemFailedException.h"

@interface OFArchiveURIHandlerPathAllowedCharacterSet: OFCharacterSet
{
	OFCharacterSet *_characterSet;
	bool (*_characterIsMember)(id, SEL, OFUnichar);
}
@end

static OFCharacterSet *pathAllowedCharacters;

static void
initPathAllowedCharacters(void)
{
	pathAllowedCharacters =
	    [[OFArchiveURIHandlerPathAllowedCharacterSet alloc] init];
}

@implementation OFArchiveURIHandler
- (OFStream *)openItemAtURI: (OFURI *)URI mode: (OFString *)mode
{
	void *pool = objc_autoreleasePoolPush();
	OFString *scheme = URI.scheme;
	OFString *percentEncodedPath, *path;
	size_t pos;
	OFURI *archiveURI;
	OFStream *stream;

	if (URI.host != nil || URI.port != nil || URI.user != nil ||
	    URI.password != nil || URI.query != nil || URI.fragment != nil)
		@throw [OFInvalidArgumentException exception];

	if (![mode isEqual: @"r"])
		/*
		 * Writing has some implications that are not decided yet: Will
		 * it always append to an archive? What happens if the file
		 * already exists?
		 */
		@throw [OFInvalidArgumentException exception];

	/*
	 * GZIP only compresses one file and thus has no path inside an
	 * archive.
	 */
	if ([scheme isEqual: @"gzip"]) {
		stream = [OFURIHandler openItemAtURI: [OFURI URIWithString:
							  URI.path]
						mode: @"r"];
		stream = [OFGZIPStream streamWithStream: stream mode: @"r"];
		goto end;
	}

	percentEncodedPath = URI.percentEncodedPath;
	pos = [percentEncodedPath rangeOfString: @"!"].location;

	if (pos == OFNotFound)
		@throw [OFInvalidArgumentException exception];

	archiveURI = [OFURI URIWithString:
	    [percentEncodedPath substringWithRange: OFMakeRange(0, pos)]
	    .stringByRemovingPercentEncoding];
	path = [percentEncodedPath substringWithRange:
	    OFMakeRange(pos + 1, percentEncodedPath.length - pos - 1)]
	    .stringByRemovingPercentEncoding;

	if ([scheme isEqual: @"lha"]) {
		OFLHAArchive *archive = [OFLHAArchive archiveWithURI: archiveURI
								mode: @"r"];
		OFLHAArchiveEntry *entry;

		while ((entry = [archive nextEntry]) != nil) {
			if ([entry.fileName isEqual: path]) {
				stream = [archive streamForReadingCurrentEntry];
				goto end;
			}
		}

		@throw [OFOpenItemFailedException exceptionWithURI: URI
							      mode: mode
							     errNo: ENOENT];
	} else if ([scheme isEqual: @"tar"]) {
		OFTarArchive *archive = [OFTarArchive archiveWithURI: archiveURI
								mode: @"r"];
		OFTarArchiveEntry *entry;

		while ((entry = [archive nextEntry]) != nil) {
			if ([entry.fileName isEqual: path]) {
				stream = [archive streamForReadingCurrentEntry];
				goto end;
			}
		}

		@throw [OFOpenItemFailedException exceptionWithURI: URI
							      mode: mode
							     errNo: ENOENT];
	} else if ([scheme isEqual: @"zip"]) {
		OFZIPArchive *archive = [OFZIPArchive archiveWithURI: archiveURI
								mode: @"r"];

		stream = [archive streamForReadingFile: path];
	} else
		@throw [OFInvalidArgumentException exception];

end:
	stream = [stream retain];

	objc_autoreleasePoolPop(pool);

	return [stream autorelease];
}
@end

@implementation OFArchiveURIHandlerPathAllowedCharacterSet
- (instancetype)init
{
	self = [super init];

	@try {
		_characterSet =
		    [[OFCharacterSet URIPathAllowedCharacterSet] retain];
		_characterIsMember = (bool (*)(id, SEL, OFUnichar))
		    [_characterSet methodForSelector:
		    @selector(characterIsMember:)];
	} @catch (id e) {
		[self release];
		@throw e;
	}

- (bool)characterIsMember: (OFUnichar)character
{
	return (character != '!' && _characterIsMember(_characterSet,
	    @selector(characterIsMember:), character));
}
@end

OFURI *
OFArchiveURIHandlerURIForFileInArchive(OFString *scheme,
    OFString *pathInArchive, OFURI *archiveURI)
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFMutableURI *ret = [OFMutableURI URIWithScheme: scheme];
	void *pool = objc_autoreleasePoolPush();
	OFString *archiveURIString;

	OFOnce(&onceControl, initPathAllowedCharacters);

	pathInArchive = [pathInArchive
	    stringByAddingPercentEncodingWithAllowedCharacters:
	    pathAllowedCharacters];
	archiveURIString = [archiveURI.string
	    stringByAddingPercentEncodingWithAllowedCharacters:
	    pathAllowedCharacters];

	ret.percentEncodedPath = [OFString
	    stringWithFormat: @"%@!%@", archiveURIString, pathInArchive];
	[ret makeImmutable];

	objc_autoreleasePoolPop(pool);

	return ret;
}

- (void)writeToFile: (OFString *)path encoding: (OFStringEncoding)encoding
{
	[self finishInitialization];
	[self writeToFile: path encoding: encoding];
}
#endif

- (void)writeToURI: (OFURI *)URI
{
	[self finishInitialization];
	[self writeToURI: URI];
}

- (void)writeToURI: (OFURI *)URI encoding: (OFStringEncoding)encoding
{
	[self finishInitialization];
	[self writeToURI: URI encoding: encoding];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateLinesUsingBlock: (OFStringLineEnumerationBlock)block
{
	[self finishInitialization];
	[self enumerateLinesUsingBlock: block];

#import "OFSerialization.h"
#import "OFMessagePackRepresentation.h"

/*! @file */

OF_ASSUME_NONNULL_BEGIN

@class OFString;
@class OFURI;

/**
 * @brief Options for searching in data.
 *
 * This is a bit mask.
 */
typedef enum {

 * @return A new autoreleased OFData
 */
+ (instancetype)dataWithContentsOfFile: (OFString *)path;
#endif

/**
 * @brief Creates a new OFData with an item size of 1, containing the data of
 *	  the specified URI.
 *
 * @param URI The URI to the contents for the OFData
 * @return A new autoreleased OFData
 */
+ (instancetype)dataWithContentsOfURI: (OFURI *)URI;

/**
 * @brief Creates a new OFData with an item size of 1, containing the data of
 *	  the hex string representation.
 *
 * @param string The hex string representation of the data
 * @return A new autoreleased OFData

 * @return An initialized OFData
 */
- (instancetype)initWithContentsOfFile: (OFString *)path;
#endif

/**
 * @brief Initializes an already allocated OFData with an item size of 1,
 *	  containing the data of the specified URI.
 *
 * @param URI The URI to the contents for the OFData
 * @return A new autoreleased OFData
 */
- (instancetype)initWithContentsOfURI: (OFURI *)URI;

/**
 * @brief Initializes an already allocated OFData with an item size of 1,
 *	  containing the data of the hex string representation.
 *
 * @param string The hex string representation of the data
 * @return A new autoreleased OFData

 *
 * @param path The path of the file to write to
 */
- (void)writeToFile: (OFString *)path;
#endif

/**
 * @brief Writes the OFData to the specified URI.
 *
 * @param URI The URI to write to
 */
- (void)writeToURI: (OFURI *)URI;
@end

OF_ASSUME_NONNULL_END

#import "OFMutableData.h"
#import "OFData+CryptographicHashing.h"
#import "OFData+MessagePackParsing.h"

#import "OFData.h"
#import "OFBase64.h"
#import "OFDictionary.h"
#ifdef OF_HAVE_FILES
# import "OFFile.h"
# import "OFFileManager.h"
#endif


#import "OFStream.h"
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFURI.h"
#import "OFURIHandler.h"
#import "OFXMLElement.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFNotImplementedException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

#ifdef OF_HAVE_FILES
+ (instancetype)dataWithContentsOfFile: (OFString *)path
{
	return [[[self alloc] initWithContentsOfFile: path] autorelease];
}
#endif

+ (instancetype)dataWithContentsOfURI: (OFURI *)URI
{
	return [[[self alloc] initWithContentsOfURI: URI] autorelease];
}

+ (instancetype)dataWithStringRepresentation: (OFString *)string
{
	return [[[self alloc]
	    initWithStringRepresentation: string] autorelease];
}

		@throw e;
	}

	return self;
}
#endif

- (instancetype)initWithContentsOfURI: (OFURI *)URI
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();
		OFStream *stream = [OFURIHandler openItemAtURI: URI mode: @"r"];
		size_t pageSize;
		unsigned char *buffer;

		_count = 0;
		_itemSize = 1;
		_freeWhenDone = true;

		[file writeBuffer: _items length: _count * _itemSize];
	} @finally {
		[file release];
	}
}
#endif

- (void)writeToURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();

	[[OFURIHandler openItemAtURI: URI mode: @"w"] writeData: self];

	objc_autoreleasePoolPop(pool);
}

- (OFXMLElement *)XMLElementBySerializing
{
	void *pool;

#import "OFOutOfRangeException.h"
#import "OFUndefinedKeyException.h"

static struct {
	Class isa;
} placeholder;

static OFCharacterSet *URIQueryPartAllowedCharacterSet = nil;

@interface OFDictionary ()
- (OFString *)
    of_JSONRepresentationWithOptions: (OFJSONRepresentationOptions)options
			       depth: (size_t)depth;
@end

	OFEnumerator *_keyEnumerator;
}

- (instancetype)initWithDictionary: (OFDictionary *)dictionary;
@end

OF_DIRECT_MEMBERS
@interface OFURIQueryPartAllowedCharacterSet: OFCharacterSet
+ (OFCharacterSet *)URIQueryPartAllowedCharacterSet;
@end

@implementation OFDictionaryPlaceholder
- (instancetype)init
{
	return (id)[[OFMapTableDictionary alloc] init];
}

- (void)dealloc
{
	OF_DEALLOC_UNSUPPORTED
}
@end

@implementation OFURIQueryPartAllowedCharacterSet
+ (void)initialize
{
	if (self != [OFURIQueryPartAllowedCharacterSet class])
		return;

	URIQueryPartAllowedCharacterSet =
	    [[OFURIQueryPartAllowedCharacterSet alloc] init];
}

+ (OFCharacterSet *)URIQueryPartAllowedCharacterSet
{
	return URIQueryPartAllowedCharacterSet;
}

- (instancetype)autorelease
{
	return self;
}

 *
 * 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.
 */

#import "OFURIHandler.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFEmbeddedURIHandler: OFURIHandler
@end

#ifdef __cplusplus
extern "C" {
#endif
/**
 * @brief Register a file for the `embedded:` URI scheme.
 *
 * Usually, you should not use the directly, but rather generate a source file
 * for a file to be embedded using the `objfw-embed` tool.
 *
 * @param path The path to the file under the `embedded:` scheme. This is not
 *	       retained, so you must either pass a constant string or pass a
 *	       string that is already retained!

#include "config.h"

#include <errno.h>
#include <stdlib.h>
#include <string.h>

#import "OFEmbeddedURIHandler.h"
#import "OFMemoryStream.h"
#import "OFURI.h"

#import "OFInvalidArgumentException.h"
#import "OFOpenItemFailedException.h"

#ifdef OF_HAVE_THREADS
# import "OFOnce.h"
# import "OFPlainMutex.h"

	numEmbeddedFiles++;

#ifdef OF_HAVE_THREADS
	OFEnsure(OFPlainMutexUnlock(&mutex) == 0);
#endif
}

@implementation OFEmbeddedURIHandler
- (OFStream *)openItemAtURI: (OFURI *)URI mode: (OFString *)mode
{
	OFString *path;

	if (![URI.scheme isEqual: @"embedded"] || URI.host.length > 0 ||
	    URI.port != nil || URI.user != nil || URI.password != nil ||
	    URI.query != nil || URI.fragment != nil)
		@throw [OFInvalidArgumentException exception];

	if (![mode isEqual: @"r"])
		@throw [OFOpenItemFailedException exceptionWithURI: URI
							      mode: mode
							     errNo: EROFS];

	if ((path = URI.path) == nil) {
		@throw [OFInvalidArgumentException exception];
	}

#ifdef OF_HAVE_THREADS
	OFEnsure(OFPlainMutexLock(&mutex) == 0);
	@try {
#endif

		}
#ifdef OF_HAVE_THREADS
	} @finally {
		OFEnsure(OFPlainMutexUnlock(&mutex) == 0);
	}
#endif

	@throw [OFOpenItemFailedException exceptionWithURI: URI
						      mode: mode
						     errNo: ENOENT];
}
@end

#else
typedef struct _OFFileHandle *OFFileHandle;
static const OFFileHandle OFInvalidFileHandle = NULL;
#endif

OF_ASSUME_NONNULL_BEGIN

@class OFURI;

/**
 * @class OFFile OFFile.h ObjFW/OFFile.h
 *
 * @brief A class which provides methods to read and write files.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFFile: OFSeekableStream

# include <sys/stat.h>
#endif

#import "OFFile.h"
#import "OFLocale.h"
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFURI.h"

#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFNotOpenException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

 *
 * 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.
 */

#import "OFURIHandler.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFFileURIHandler: OFURIHandler
+ (bool)of_directoryExistsAtPath: (OFString *)path OF_DIRECT;
@end

OF_ASSUME_NONNULL_END

#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
#ifdef HAVE_GRP_H
# include <grp.h>
#endif

#import "OFFileURIHandler.h"
#import "OFArray.h"
#import "OFDate.h"
#import "OFFile.h"
#import "OFFileManager.h"

#import "OFLocale.h"
#import "OFNumber.h"
#import "OFSystemInfo.h"
#import "OFURI.h"

#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif

#import "OFCreateDirectoryFailedException.h"
#import "OFCreateSymbolicLinkFailedException.h"

# endif
#endif
}

#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
static void
setSymbolicLinkDestinationAttribute(OFMutableFileAttributes attributes,
    OFURI *URI)
{
	OFString *path = URI.fileSystemRepresentation;
# ifndef OF_WINDOWS
	OFStringEncoding encoding = [OFLocale encoding];
	char destinationC[PATH_MAX];
	ssize_t length;
	OFString *destination;

	length = readlink([path cStringWithEncoding: encoding], destinationC,
	    PATH_MAX);

	if (length < 0)
		@throw [OFGetItemAttributesFailedException
		    exceptionWithURI: URI
			       errNo: errno];

	destination = [OFString stringWithCString: destinationC
					 encoding: encoding
					   length: length];

	[attributes setObject: destination
		       forKey: OFFileSymbolicLinkDestination];
# else
	HANDLE handle;
	OFString *destination;

	if (createSymbolicLinkWFuncPtr == NULL)
		return;

	if ((handle = CreateFileW(path.UTF16String, 0, (FILE_SHARE_READ |
	    FILE_SHARE_WRITE), NULL, OPEN_EXISTING,
	    FILE_FLAG_OPEN_REPARSE_POINT, NULL)) == INVALID_HANDLE_VALUE)
		@throw [OFGetItemAttributesFailedException
		    exceptionWithURI: URI
			       errNo: lastError()];

	@try {
		union {
			char bytes[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
			REPARSE_DATA_BUFFER data;
		} buffer;
		DWORD size;
		wchar_t *tmp;

		if (!DeviceIoControl(handle, FSCTL_GET_REPARSE_POINT, NULL, 0,
		    buffer.bytes, MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &size,
		    NULL))
			@throw [OFGetItemAttributesFailedException
			    exceptionWithURI: URI
				       errNo: lastError()];

		if (buffer.data.ReparseTag != IO_REPARSE_TAG_SYMLINK)
			@throw [OFGetItemAttributesFailedException
			    exceptionWithURI: URI
				       errNo: lastError()];

#  define slrb buffer.data.SymbolicLinkReparseBuffer
		tmp = slrb.PathBuffer +
		    (slrb.SubstituteNameOffset / sizeof(wchar_t));

		destination = [OFString

	} @finally {
		CloseHandle(handle);
	}
# endif
}
#endif

@implementation OFFileURIHandler
+ (void)initialize
{
#ifdef OF_WINDOWS
	HMODULE module;
#endif

	if (self != [OFFileURIHandler class])
		return;

#if defined(OF_FILE_MANAGER_SUPPORTS_OWNER) && defined(OF_HAVE_THREADS)
	passwdMutex = [[OFMutex alloc] init];
	atexit(releasePasswdMutex);
#endif
#if !defined(HAVE_READDIR_R) && !defined(OF_WINDOWS) && defined(OF_HAVE_THREADS)

	if (statWrapper(path, &s) != 0)
		return false;

	return S_ISDIR(s.st_mode);
}

- (OFStream *)openItemAtURI: (OFURI *)URI mode: (OFString *)mode
{
	void *pool = objc_autoreleasePoolPush();
	OFFile *file = [[OFFile alloc]
	    initWithPath: URI.fileSystemRepresentation
		    mode: mode];

	objc_autoreleasePoolPop(pool);

	return [file autorelease];
}

- (OFFileAttributes)attributesOfItemAtURI: (OFURI *)URI
{
	OFMutableFileAttributes ret = [OFMutableDictionary dictionary];
	void *pool = objc_autoreleasePoolPush();
	OFString *path;
	int error;
	Stat s;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (![[URI scheme] isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	path = URI.fileSystemRepresentation;

	if ((error = lstatWrapper(path, &s)) != 0)
		@throw [OFGetItemAttributesFailedException
		    exceptionWithURI: URI
			       errNo: error];

	if (s.st_size < 0)
		@throw [OFOutOfRangeException exception];

	[ret setObject: [NSNumber numberWithUnsignedLongLong: s.st_size]
		forKey: OFFileSize];

	setTypeAttribute(ret, &s);

	[ret setObject: [NSNumber numberWithUnsignedLong: s.st_mode]
		forKey: OFFilePOSIXPermissions];

	setOwnerAndGroupAttributes(ret, &s);
	setDateAttributes(ret, &s);

#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
	if (S_ISLNK(s.st_mode))
		setSymbolicLinkDestinationAttribute(ret, URI);
#endif

	objc_autoreleasePoolPop(pool);

	return ret;
}

- (void)of_setLastAccessDate: (OFDate *)lastAccessDate
	 andModificationDate: (OFDate *)modificationDate
		 ofItemAtURI: (OFURI *)URI
		  attributes: (OFFileAttributes)attributes OF_DIRECT
{
	OFString *path = URI.fileSystemRepresentation;
	OFFileAttributeKey attributeKey = (modificationDate != nil
	    ? OFFileModificationDate : OFFileLastAccessDate);

	if (lastAccessDate == nil)
		lastAccessDate = modificationDate;
	if (modificationDate == nil)
		modificationDate = lastAccessDate;

#if defined(OF_WINDOWS)
	if (_wutime64FuncPtr != NULL) {
		struct __utimbuf64 times = {
			.actime =
			    (__time64_t)lastAccessDate.timeIntervalSince1970,
			.modtime =
			    (__time64_t)modificationDate.timeIntervalSince1970
		};

		if (_wutime64FuncPtr([path UTF16String], &times) != 0)
			@throw [OFSetItemAttributesFailedException
			    exceptionWithURI: URI
				  attributes: attributes
			     failedAttribute: attributeKey
				       errNo: errno];
	} else {
		struct _utimbuf times = {
			.actime = (time_t)lastAccessDate.timeIntervalSince1970,
			.modtime =
			    (time_t)modificationDate.timeIntervalSince1970
		};
		int status;

		if ([OFSystemInfo isWindowsNT])
			status = _wutime([path UTF16String], &times);
		else
			status = _utime(
			    [path cStringWithEncoding: [OFLocale encoding]],
			    &times);

		if (status != 0)
			@throw [OFSetItemAttributesFailedException
			    exceptionWithURI: URI
				  attributes: attributes
			     failedAttribute: attributeKey
				       errNo: errno];
	}
#elif defined(OF_AMIGAOS)
	/* AmigaOS does not support access time. */
	OFTimeInterval modificationTime =

	if (!SetDate([path cStringWithEncoding: [OFLocale encoding]],
	    &date) != 0)
# else
	if (!SetFileDate([path cStringWithEncoding: [OFLocale encoding]],
	    &date) != 0)
# endif
		@throw [OFSetItemAttributesFailedException
		    exceptionWithURI: URI
			  attributes: attributes
		     failedAttribute: attributeKey
			       errNo: lastError()];
#else
	OFTimeInterval lastAccessTime = lastAccessDate.timeIntervalSince1970;
	OFTimeInterval modificationTime =
	    modificationDate.timeIntervalSince1970;

			.tv_usec = (int)((modificationTime - times[1].tv_sec) *
			    1000000)
		},
	};

	if (utimes([path cStringWithEncoding: [OFLocale encoding]], times) != 0)
		@throw [OFSetItemAttributesFailedException
		    exceptionWithURI: URI
			  attributes: attributes
		     failedAttribute: attributeKey
			       errNo: errno];
#endif
}

- (void)of_setPOSIXPermissions: (OFNumber *)permissions
		   ofItemAtURI: (OFURI *)URI
		    attributes: (OFFileAttributes)attributes OF_DIRECT
{
#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
	mode_t mode = (mode_t)permissions.unsignedLongValue;
	OFString *path = URI.fileSystemRepresentation;
	int status;

# ifdef OF_WINDOWS
	if ([OFSystemInfo isWindowsNT])
		status = _wchmod(path.UTF16String, mode);
	else
# endif
		status = chmod(
		    [path cStringWithEncoding: [OFLocale encoding]], mode);

	if (status != 0)
		@throw [OFSetItemAttributesFailedException
		    exceptionWithURI: URI
			  attributes: attributes
		     failedAttribute: OFFilePOSIXPermissions
			       errNo: errno];
#else
	OF_UNRECOGNIZED_SELECTOR
#endif
}

- (void)of_setOwnerAccountName: (OFString *)owner
      andGroupOwnerAccountName: (OFString *)group
		   ofItemAtURI: (OFURI *)URI
		  attributeKey: (OFFileAttributeKey)attributeKey
		    attributes: (OFFileAttributes)attributes OF_DIRECT
{
#ifdef OF_FILE_MANAGER_SUPPORTS_OWNER
	OFString *path = URI.fileSystemRepresentation;
	uid_t uid = -1;
	gid_t gid = -1;
	OFStringEncoding encoding;

	if (owner == nil && group == nil)
		@throw [OFInvalidArgumentException exception];

	encoding = [OFLocale encoding];

# ifdef OF_HAVE_THREADS
	[passwdMutex lock];
	@try {
# endif
		if (owner != nil) {
			struct passwd *passwd;

			if ((passwd = getpwnam([owner
			    cStringWithEncoding: encoding])) == NULL)
				@throw [OFSetItemAttributesFailedException
				    exceptionWithURI: URI
					  attributes: attributes
				     failedAttribute: attributeKey
					       errNo: errno];

			uid = passwd->pw_uid;
		}

		if (group != nil) {
			struct group *group_;

			if ((group_ = getgrnam([group
			    cStringWithEncoding: encoding])) == NULL)
				@throw [OFSetItemAttributesFailedException
				    exceptionWithURI: URI
					  attributes: attributes
				     failedAttribute: attributeKey
					       errNo: errno];

			gid = group_->gr_gid;
		}
# ifdef OF_HAVE_THREADS
	} @finally {
		[passwdMutex unlock];
	}
# endif

	if (chown([path cStringWithEncoding: encoding], uid, gid) != 0)
		@throw [OFSetItemAttributesFailedException
		    exceptionWithURI: URI
			  attributes: attributes
		     failedAttribute: attributeKey
			       errNo: errno];
#else
	OF_UNRECOGNIZED_SELECTOR
#endif
}

- (void)setAttributes: (OFFileAttributes)attributes ofItemAtURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();
	OFEnumerator OF_GENERIC(OFFileAttributeKey) *keyEnumerator;
	OFEnumerator *objectEnumerator;
	OFFileAttributeKey key;
	id object;
	OFDate *lastAccessDate, *modificationDate;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (![URI.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	keyEnumerator = [attributes keyEnumerator];
	objectEnumerator = [attributes objectEnumerator];

	while ((key = [keyEnumerator nextObject]) != nil &&
	    (object = [objectEnumerator nextObject]) != nil) {
		if ([key isEqual: OFFileModificationDate] ||
		    [key isEqual: OFFileLastAccessDate])
			continue;
		else if ([key isEqual: OFFilePOSIXPermissions])
			[self of_setPOSIXPermissions: object
					 ofItemAtURI: URI
					  attributes: attributes];
		else if ([key isEqual: OFFileOwnerAccountName])
			[self of_setOwnerAccountName: object
			    andGroupOwnerAccountName: nil
					 ofItemAtURI: URI
					attributeKey: key
					  attributes: attributes];
		else if ([key isEqual: OFFileGroupOwnerAccountName])
			[self of_setOwnerAccountName: nil
			    andGroupOwnerAccountName: object
					 ofItemAtURI: URI
					attributeKey: key
					  attributes: attributes];
		else
			@throw [OFNotImplementedException
			    exceptionWithSelector: _cmd
					   object: self];
	}

	lastAccessDate = [attributes objectForKey: OFFileLastAccessDate];
	modificationDate = [attributes objectForKey: OFFileModificationDate];

	if (lastAccessDate != nil || modificationDate != nil)
		[self of_setLastAccessDate: lastAccessDate
		       andModificationDate: modificationDate
			       ofItemAtURI: URI
				attributes: attributes];

	objc_autoreleasePoolPop(pool);
}

- (bool)fileExistsAtURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();
	Stat s;
	bool ret;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (![URI.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	if (statWrapper(URI.fileSystemRepresentation, &s) != 0) {
		objc_autoreleasePoolPop(pool);
		return false;
	}

	ret = S_ISREG(s.st_mode);

	objc_autoreleasePoolPop(pool);

	return ret;
}

- (bool)directoryExistsAtURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();
	Stat s;
	bool ret;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (![URI.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	if (statWrapper(URI.fileSystemRepresentation, &s) != 0) {
		objc_autoreleasePoolPop(pool);
		return false;
	}

	ret = S_ISDIR(s.st_mode);

	objc_autoreleasePoolPop(pool);

	return ret;
}

- (void)createDirectoryAtURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();
	OFString *path;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (![URI.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	path = URI.fileSystemRepresentation;

#if defined(OF_WINDOWS)
	int status;

	if ([OFSystemInfo isWindowsNT])
		status = _wmkdir(path.UTF16String);
	else
		status = _mkdir(
		    [path cStringWithEncoding: [OFLocale encoding]]);

	if (status != 0)
		@throw [OFCreateDirectoryFailedException
		    exceptionWithURI: URI
			       errNo: errno];
#elif defined(OF_AMIGAOS)
	BPTR lock;

	if ((lock = CreateDir(
	    [path cStringWithEncoding: [OFLocale encoding]])) == 0)
		@throw [OFCreateDirectoryFailedException
		    exceptionWithURI: URI
			       errNo: lastError()];

	UnLock(lock);
#else
	if (mkdir([path cStringWithEncoding: [OFLocale encoding]], 0777) != 0)
		@throw [OFCreateDirectoryFailedException
		    exceptionWithURI: URI
			       errNo: errno];
#endif

	objc_autoreleasePoolPop(pool);
}

- (OFArray OF_GENERIC(OFURI *) *)contentsOfDirectoryAtURI: (OFURI *)URI
{
	OFMutableArray *URIs = [OFMutableArray array];
	void *pool = objc_autoreleasePoolPush();
	OFString *path;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (![URI.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	path = URI.fileSystemRepresentation;

#if defined(OF_WINDOWS)
	HANDLE handle;

	path = [path stringByAppendingString: @"\\*"];

	if ([OFSystemInfo isWindowsNT]) {
		WIN32_FIND_DATAW fd;

		if ((handle = FindFirstFileW(path.UTF16String,
		    &fd)) == INVALID_HANDLE_VALUE)
			@throw [OFOpenItemFailedException
			    exceptionWithURI: URI
					mode: nil
				       errNo: lastError()];

		@try {
			do {
				OFString *file;

				if (wcscmp(fd.cFileName, L".") == 0 ||
				    wcscmp(fd.cFileName, L"..") == 0)
					continue;

				file = [[OFString alloc]
				    initWithUTF16String: fd.cFileName];
				@try {
					[URIs addObject: [URI
					    URIByAppendingPathComponent: file]];
				} @finally {
					[file release];
				}
			} while (FindNextFileW(handle, &fd));

			if (GetLastError() != ERROR_NO_MORE_FILES)
				@throw [OFReadFailedException

		OFStringEncoding encoding = [OFLocale encoding];
		WIN32_FIND_DATA fd;

		if ((handle = FindFirstFileA(
		    [path cStringWithEncoding: encoding], &fd)) ==
		    INVALID_HANDLE_VALUE)
			@throw [OFOpenItemFailedException
			    exceptionWithURI: URI
					mode: nil
				       errNo: lastError()];

		@try {
			do {
				OFString *file;

				if (strcmp(fd.cFileName, ".") == 0 ||
				    strcmp(fd.cFileName, "..") == 0)
					continue;

				file = [[OFString alloc]
				    initWithCString: fd.cFileName
					   encoding: encoding];
				@try {
					[URIs addObject: [URI
					    URIByAppendingPathComponent: file]];
				} @finally {
					[file release];
				}
			} while (FindNextFileA(handle, &fd));

			if (GetLastError() != ERROR_NO_MORE_FILES)
				@throw [OFReadFailedException

#elif defined(OF_AMIGAOS)
	OFStringEncoding encoding = [OFLocale encoding];
	BPTR lock;

	if ((lock = Lock([path cStringWithEncoding: encoding],
	    SHARED_LOCK)) == 0)
		@throw [OFOpenItemFailedException
		    exceptionWithURI: URI
				mode: nil
			       errNo: lastError()];

	@try {
# ifdef OF_AMIGAOS4
		struct ExamineData *ed;
		APTR context;

		if ((context = ObtainDirContextTags(EX_FileLockInput, lock,
		    EX_DoCurrentDir, TRUE, EX_DataFields, EXF_NAME,
		    TAG_END)) == NULL)
			@throw [OFOpenItemFailedException
			    exceptionWithURI: URI
					mode: nil
				       errNo: lastError()];

		@try {
			while ((ed = ExamineDir(context)) != NULL) {
				OFString *file = [[OFString alloc]
				    initWithCString: ed->Name
					   encoding: encoding];

				@try {
					[URIs addObject: [URI
					    URIByAppendingPathComponent: file]];
				} @finally {
					[file release];
				}
			}
		} @finally {
			ReleaseDirContext(context);
		}
# else
		struct FileInfoBlock fib;

		if (!Examine(lock, &fib))
			@throw [OFOpenItemFailedException
			    exceptionWithURI: URI
					mode: nil
				       errNo: lastError()];

		while (ExNext(lock, &fib)) {
			OFString *file = [[OFString alloc]
			    initWithCString: fib.fib_FileName
				   encoding: encoding];
			@try {
				[URIs addObject:
				    [URI URIByAppendingPathComponent: file]];
			} @finally {
				[file release];
			}
		}
# endif

		if (IoErr() != ERROR_NO_MORE_ENTRIES)
			@throw [OFReadFailedException
			    exceptionWithObject: self
				requestedLength: 0
					  errNo: lastError()];
	} @finally {
		UnLock(lock);
	}
#else
	OFStringEncoding encoding = [OFLocale encoding];
	DIR *dir;
	if ((dir = opendir([path cStringWithEncoding: encoding])) == NULL)
		@throw [OFOpenItemFailedException exceptionWithURI: URI
							      mode: nil
							     errNo: errno];

# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
	@try {
		[readdirMutex lock];
	} @catch (id e) {

			if (strcmp(dirent->d_name, ".") == 0 ||
			    strcmp(dirent->d_name, "..") == 0)
				continue;

			file = [[OFString alloc] initWithCString: dirent->d_name
							encoding: encoding];
			@try {
				[URIs addObject:
				    [URI URIByAppendingPathComponent: file]];
			} @finally {
				[file release];
			}
		}
	} @finally {
		closedir(dir);
# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
		[readdirMutex unlock];
# endif
	}
#endif

	[URIs makeImmutable];

	objc_autoreleasePoolPop(pool);

	return URIs;
}

- (void)removeItemAtURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();
	OFString *path;
	int error;
	Stat s;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (![URI.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	path = URI.fileSystemRepresentation;

	if ((error = lstatWrapper(path, &s)) != 0)
		@throw [OFRemoveItemFailedException exceptionWithURI: URI
							       errNo: error];

	if (S_ISDIR(s.st_mode)) {
		OFArray OF_GENERIC(OFURI *) *contents;

		@try {
			contents = [self contentsOfDirectoryAtURI: URI];
		} @catch (id e) {
			/*
			 * Only convert exceptions to
			 * OFRemoveItemFailedException that have an errNo
			 * property. This covers all I/O related exceptions
			 * from the operations used to remove an item, all
			 * others should be left as is.
			 */
			if ([e respondsToSelector: @selector(errNo)])
				@throw [OFRemoveItemFailedException
				    exceptionWithURI: URI
					       errNo: [e errNo]];

			@throw e;
		}

		for (OFURI *item in contents) {
			void *pool2 = objc_autoreleasePoolPush();

			[self removeItemAtURI: item];

			objc_autoreleasePoolPop(pool2);
		}

#ifndef OF_AMIGAOS
		int status;

# ifdef OF_WINDOWS
		if ([OFSystemInfo isWindowsNT])
			status = _wrmdir(path.UTF16String);
		else
# endif
			status = rmdir(
			    [path cStringWithEncoding: [OFLocale encoding]]);

		if (status != 0)
			@throw [OFRemoveItemFailedException
				exceptionWithURI: URI
					   errNo: errno];
	} else {
		int status;

# ifdef OF_WINDOWS
		if ([OFSystemInfo isWindowsNT])
			status = _wunlink(path.UTF16String);
		else
# endif
			status = unlink(
			    [path cStringWithEncoding: [OFLocale encoding]]);

		if (status != 0)
			@throw [OFRemoveItemFailedException
			    exceptionWithURI: URI
				       errNo: errno];
#endif
	}

#ifdef OF_AMIGAOS
	if (!DeleteFile([path cStringWithEncoding: [OFLocale encoding]]))
		@throw [OFRemoveItemFailedException
		    exceptionWithURI: URI
			       errNo: lastError()];
#endif

	objc_autoreleasePoolPop(pool);
}

#ifdef OF_FILE_MANAGER_SUPPORTS_LINKS
- (void)linkItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
	void *pool = objc_autoreleasePoolPush();
	OFString *sourcePath, *destinationPath;

	if (source == nil || destination == nil)
		@throw [OFInvalidArgumentException exception];

	if (![source.scheme isEqual: _scheme] ||
	    ![destination.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	sourcePath = source.fileSystemRepresentation;
	destinationPath = destination.fileSystemRepresentation;

# ifndef OF_WINDOWS
	OFStringEncoding encoding = [OFLocale encoding];

	if (link([sourcePath cStringWithEncoding: encoding],
	    [destinationPath cStringWithEncoding: encoding]) != 0)
		@throw [OFLinkItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: errno];
# else
	if (createHardLinkWFuncPtr == NULL)
		@throw [OFNotImplementedException exceptionWithSelector: _cmd
								 object: self];

	if (!createHardLinkWFuncPtr(destinationPath.UTF16String,
	    sourcePath.UTF16String, NULL))
		@throw [OFLinkItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: lastError()];
# endif

	objc_autoreleasePoolPop(pool);
}
#endif

#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
- (void)createSymbolicLinkAtURI: (OFURI *)URI
	    withDestinationPath: (OFString *)target
{
	void *pool = objc_autoreleasePoolPush();
	OFString *path;

	if (URI == nil || target == nil)
		@throw [OFInvalidArgumentException exception];

	if (![URI.scheme isEqual: _scheme])
		@throw [OFInvalidArgumentException exception];

	path = URI.fileSystemRepresentation;

# ifndef OF_WINDOWS
	OFStringEncoding encoding = [OFLocale encoding];

	if (symlink([target cStringWithEncoding: encoding],
	    [path cStringWithEncoding: encoding]) != 0)
		@throw [OFCreateSymbolicLinkFailedException
		    exceptionWithURI: URI
			      target: target
			       errNo: errno];
# else
	if (createSymbolicLinkWFuncPtr == NULL)
		@throw [OFNotImplementedException exceptionWithSelector: _cmd
								 object: self];

	if (!createSymbolicLinkWFuncPtr(path.UTF16String, target.UTF16String,
	    0))
		@throw [OFCreateSymbolicLinkFailedException
		    exceptionWithURI: URI
			      target: target
			       errNo: lastError()];
# endif

	objc_autoreleasePoolPop(pool);
}
#endif

- (bool)moveItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
	void *pool;

	if (![source.scheme isEqual: _scheme] ||
	    ![destination.scheme isEqual: _scheme])
		return false;

	if ([self fileExistsAtURI: destination])
		@throw [OFMoveItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: EEXIST];

	pool = objc_autoreleasePoolPush();

#ifdef OF_AMIGAOS
	OFStringEncoding encoding = [OFLocale encoding];

	if (!Rename([source.fileSystemRepresentation
	    cStringWithEncoding: encoding],
	    [destination.fileSystemRepresentation
	    cStringWithEncoding: encoding]))
		@throw [OFMoveItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: lastError()];
#else
	int status;

# ifdef OF_WINDOWS
	if ([OFSystemInfo isWindowsNT])
		status = _wrename(source.fileSystemRepresentation.UTF16String,

		    cStringWithEncoding: encoding]);
# ifdef OF_WINDOWS
	}
# endif

	if (status != 0)
		@throw [OFMoveItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: errno];
#endif

	objc_autoreleasePoolPop(pool);

	return true;
}
@end

#  define OF_FILE_MANAGER_SUPPORTS_SYMLINKS
# endif
#endif

@class OFArray OF_GENERIC(ObjectType);
@class OFConstantString;
@class OFDate;
@class OFString;
@class OFURI;

/**
 * @brief A key for a file attribute in the file attributes dictionary.
 *
 * Possible keys for file URIs are:
 *
 *  * @ref OFFileSize
 *  * @ref OFFileType
 *  * @ref OFFilePOSIXPermissions
 *  * @ref OFFileOwnerAccountID
 *  * @ref OFFileGroupOwnerAccountID
 *  * @ref OFFileOwnerAccountName
 *  * @ref OFFileGroupOwnerAccountName
 *  * @ref OFFileLastAccessDate
 *  * @ref OFFileModificationDate
 *  * @ref OFFileStatusChangeDate
 *  * @ref OFFileCreationDate
 *  * @ref OFFileSymbolicLinkDestination
 *
 * Other URI schemes might not have all keys and might have keys not listed.
 */
typedef OFConstantString *OFFileAttributeKey;

/**
 * @brief The type of a file.
 *
 * Possibles values for file URIs are:
 *
 *  * @ref OFFileTypeRegular
 *  * @ref OFFileTypeDirectory
 *  * @ref OFFileTypeSymbolicLink
 *  * @ref OFFileTypeFIFO
 *  * @ref OFFileTypeCharacterSpecial
 *  * @ref OFFileTypeBlockSpecial
 *  * @ref OFFileTypeSocket
 *  * @ref OFFileTypeUnknown
 *
 * Other URI schemes might not have all types and might have types not listed.
 */
typedef OFConstantString *OFFileAttributeType;

/**
 * @brief A dictionary mapping keys of type @ref OFFileAttributeKey to their
 *	  attribute values.
 */

 * @brief The path of the current working directory.
 *
 * @throw OFGetCurrentDirectoryFailedException Couldn't get current directory
 */
@property (readonly, nonatomic) OFString *currentDirectoryPath;

/**
 * @brief The URI of the current working directory.
 *
 * @throw OFGetCurrentDirectoryFailedException Couldn't get current directory
 */
@property (readonly, nonatomic) OFURI *currentDirectoryURI;
#endif

/**
 * @brief Returns the default file manager.
 */
+ (OFFileManager *)defaultManager;

 * @throw OFGetItemAttributesFailedException Failed to get the attributes of
 *					     the item
 */
- (OFFileAttributes)attributesOfItemAtPath: (OFString *)path;
#endif

/**
 * @brief Returns the attributes for the item at the specified URI.
 *
 * @param URI The URI to return the attributes for
 * @return A dictionary of attributes for the specified URI, with the keys of
 *	   type @ref OFFileAttributeKey
 * @throw OFGetItemAttributesFailedException Failed to get the attributes of
 *					     the item
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (OFFileAttributes)attributesOfItemAtURI: (OFURI *)URI;

#ifdef OF_HAVE_FILES
/**
 * @brief Sets the attributes for the item at the specified path.
 *
 * All attributes not part of the dictionary are left unchanged.
 *
 * @param attributes The attributes to set for the specified path
 * @param path The path of the item to set the attributes for
 * @throw OFSetItemAttributesFailedException Failed to set the attributes of
 *					     the item
 * @throw OFNotImplementedException Setting one or more of the specified
 *				    attributes is not implemented for the
 *				    specified item
 */
- (void)setAttributes: (OFFileAttributes)attributes
	 ofItemAtPath: (OFString *)path;
#endif

/**
 * @brief Sets the attributes for the item at the specified URI.
 *
 * All attributes not part of the dictionary are left unchanged.
 *
 * @param attributes The attributes to set for the specified URI
 * @param URI The URI of the item to set the attributes for
 * @throw OFSetItemAttributesFailedException Failed to set the attributes of
 *					     the item
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 * @throw OFNotImplementedException Setting one or more of the specified
 *				    attributes is not implemented for the
 *				    specified item
 */
- (void)setAttributes: (OFFileAttributes)attributes ofItemAtURI: (OFURI *)URI;

#ifdef OF_HAVE_FILES
/**
 * @brief Checks whether a file exists at the specified path.
 *
 * @param path The path to check
 * @return A boolean whether there is a file at the specified path
 */
- (bool)fileExistsAtPath: (OFString *)path;
#endif

/**
 * @brief Checks whether a file exists at the specified URI.
 *
 * @param URI The URI to check
 * @return A boolean whether there is a file at the specified URI
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (bool)fileExistsAtURI: (OFURI *)URI;

#ifdef OF_HAVE_FILES
/**
 * @brief Checks whether a directory exists at the specified path.
 *
 * @param path The path to check
 * @return A boolean whether there is a directory at the specified path
 */
- (bool)directoryExistsAtPath: (OFString *)path;
#endif

/**
 * @brief Checks whether a directory exists at the specified URI.
 *
 * @param URI The URI to check
 * @return A boolean whether there is a directory at the specified URI
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (bool)directoryExistsAtURI: (OFURI *)URI;

#ifdef OF_HAVE_FILES
/**
 * @brief Creates a directory at the specified path.
 *
 * @param path The path of the directory to create
 * @throw OFCreateDirectoryFailedException Creating the directory failed

 *					   parents failed
 */
- (void)createDirectoryAtPath: (OFString *)path
		createParents: (bool)createParents;
#endif

/**
 * @brief Creates a directory at the specified URI.
 *
 * @param URI The URI of the directory to create
 * @throw OFCreateDirectoryFailedException Creating the directory failed
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (void)createDirectoryAtURI: (OFURI *)URI;

/**
 * @brief Creates a directory at the specified URI.
 *
 * @param URI The URI of the directory to create
 * @param createParents Whether to create the parents of the directory
 * @throw OFCreateDirectoryFailedException Creating the directory or one of its
 *					   parents failed
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (void)createDirectoryAtURI: (OFURI *)URI createParents: (bool)createParents;

#ifdef OF_HAVE_FILES
/**
 * @brief Returns an array with the items in the specified directory.
 *
 * @note `.` and `..` are not part of the returned array.
 *
 * @param path The path to the directory whose items should be returned
 * @return An array of OFString with the items in the specified directory
 * @throw OFOpenItemFailedException Opening the directory failed
 * @throw OFReadFailedException Reading from the directory failed
 */
- (OFArray OF_GENERIC(OFString *) *)contentsOfDirectoryAtPath: (OFString *)path;
#endif

/**
 * @brief Returns an array with the URIs of the items in the specified
 *	  directory.
 *
 * @note `.` and `..` are not part of the returned array.
 *
 * @param URI The URI to the directory whose items should be returned
 * @return An array with the URIs of the items in the specified directory
 * @throw OFOpenItemFailedException Opening the directory failed
 * @throw OFReadFailedException Reading from the directory failed
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (OFArray OF_GENERIC(OFURI *) *)contentsOfDirectoryAtURI: (OFURI *)URI;

#ifdef OF_HAVE_FILES
/**
 * @brief Returns an array with all subpaths of the specified directory.
 *
 * @note `.` and `..` (of the directory itself or any subdirectory) are not
 * part of the returned array.

 *						  directory failed
 */
- (void)changeCurrentDirectoryPath: (OFString *)path;

/**
 * @brief Changes the current working directory.
 *
 * @param URI The new directory to change to
 * @throw OFChangeCurrentDirectoryFailedException Changing the current working
 *						  directory failed
 */
- (void)changeCurrentDirectoryURI: (OFURI *)URI;

/**
 * @brief Copies a file, directory or symbolic link (if supported by the OS).
 *
 * The destination path must be a full path, which means it must include the
 * name of the item.
 *

 */
- (void)copyItemAtPath: (OFString *)source toPath: (OFString *)destination;
#endif

/**
 * @brief Copies a file, directory or symbolic link (if supported by the OS).
 *
 * The destination URI must have a full path, which means it must include the
 * name of the item.
 *
 * If an item already exists, the copy operation fails. This is also the case
 * if a directory is copied and an item already exists in the destination
 * directory.
 *
 * @param source The file, directory or symbolic link to copy
 * @param destination The destination URI
 * @throw OFCopyItemFailedException Copying failed
 * @throw OFCreateDirectoryFailedException Creating a destination directory
 *					   failed
 * @throw OFUnsupportedProtocolException No handler is registered for either of
 *					 the URI's scheme
 */
- (void)copyItemAtURI: (OFURI *)source toURI: (OFURI *)destination;

#ifdef OF_HAVE_FILES
/**
 * @brief Moves an item.
 *
 * The destination path must be a full path, which means it must include the
 * name of the item.

 */
- (void)moveItemAtPath: (OFString *)source toPath: (OFString *)destination;
#endif

/**
 * @brief Moves an item.
 *
 * The destination URI must have a full path, which means it must include the
 * name of the item.
 *
 * If the destination is on a different logical device or uses a different
 * scheme, the source will be copied to the destination using
 * @ref copyItemAtURI:toURI: and the source removed using @ref removeItemAtURI:.
 *
 * @param source The item to rename
 * @param destination The new name for the item
 * @throw OFMoveItemFailedException Moving failed
 * @throw OFCopyItemFailedException Copying (to move between different devices)
 *				    failed
 * @throw OFRemoveItemFailedException Removing the source after copying to the
 *				      destination (to move between different
 *				      devices) failed
 * @throw OFCreateDirectoryFailedException Creating a destination directory
 *					   failed
 * @throw OFUnsupportedProtocolException No handler is registered for either of
 *					 the URI's scheme
 */
- (void)moveItemAtURI: (OFURI *)source toURI: (OFURI *)destination;

#ifdef OF_HAVE_FILES
/**
 * @brief Removes the item at the specified path.
 *
 * If the item at the specified path is a directory, it is removed recursively.
 *
 * @param path The path to the item which should be removed
 * @throw OFRemoveItemFailedException Removing the item failed
 */
- (void)removeItemAtPath: (OFString *)path;
#endif

/**
 * @brief Removes the item at the specified URI.
 *
 * If the item at the specified URI is a directory, it is removed recursively.
 *
 * @param URI The URI to the item which should be removed
 * @throw OFRemoveItemFailedException Removing the item failed
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (void)removeItemAtURI: (OFURI *)URI;

#ifdef OF_FILE_MANAGER_SUPPORTS_LINKS
/**
 * @brief Creates a hard link for the specified item.
 *
 * The destination path must be a full path, which means it must include the
 * name of the item.
 *
 * This method is not available on some systems.
 *
 * @param source The path to the item for which a link should be created
 * @param destination The path to the item which should link to the source
 * @throw OFLinkItemFailedException Linking the item failed
 * @throw OFNotImplementedException Hardlinks are not implemented for the
 *				    specified URI
 */
- (void)linkItemAtPath: (OFString *)source toPath: (OFString *)destination;
#endif

/**
 * @brief Creates a hard link for the specified item.
 *
 * The destination URI must have a full path, which means it must include the
 * name of the item.
 *
 * This method is not available for all URIs.
 *
 * @param source The URI to the item for which a link should be created
 * @param destination The URI to the item which should link to the source
 * @throw OFLinkItemFailedException Linking the item failed
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 * @throw OFNotImplementedException Hardlinks are not implemented for the
 *				    specified URI
 */
- (void)linkItemAtURI: (OFURI *)source toURI: (OFURI *)destination;

#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
/**
 * @brief Creates a symbolic link for an item.
 *
 * The destination path must be a full path, which means it must include the
 * name of the item.
 *
 * This method is not available on some systems.
 *
 * @note On Windows, this requires at least Windows Vista and administrator
 *	 privileges!
 *
 * @param path The path to the item which should symbolically link to the target
 * @param target The target of the symbolic link
 * @throw OFCreateSymbolicLinkFailedException Creating the symbolic link failed
 * @throw OFNotImplementedException Symbolic links are not implemented for the
 *				    specified URI
 */
- (void)createSymbolicLinkAtPath: (OFString *)path
	     withDestinationPath: (OFString *)target;
#endif

/**
 * @brief Creates a symbolic link for an item.
 *
 * The destination URI must have a full path, which means it must include the
 * name of the item.
 *
 * This method is not available for all URIs.
 *
 * @note On Windows, this requires at least Windows Vista and administrator
 *	 privileges!
 *
 * @param URI The URI to the item which should symbolically link to the target
 * @param target The target of the symbolic link
 * @throw OFUnsupportedProtocolException No handler is registered for the URI's
 *					 scheme
 */
- (void)createSymbolicLinkAtURI: (OFURI *)URI
	    withDestinationPath: (OFString *)target;
@end

@interface OFDictionary (FileAttributes)
/**
 * @brief The @ref OFFileSize key from the dictionary.
 *

#import "OFArray.h"
#import "OFDate.h"
#import "OFDictionary.h"
#ifdef OF_HAVE_FILES
# import "OFFile.h"
#endif
#import "OFFileManager.h"


#import "OFLocale.h"
#import "OFNumber.h"
#import "OFStream.h"
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFURI.h"
#import "OFURIHandler.h"

#import "OFChangeCurrentDirectoryFailedException.h"
#import "OFCopyItemFailedException.h"
#import "OFCreateDirectoryFailedException.h"
#import "OFGetCurrentDirectoryFailedException.h"
#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"

#  endif

	return [OFString stringWithCString: buffer
				  encoding: [OFLocale encoding]];
# endif
}

- (OFURI *)currentDirectoryURI
{
	void *pool = objc_autoreleasePoolPush();
	OFURI *ret;

	ret = [OFURI fileURIWithPath: self.currentDirectoryPath];

	[ret retain];
	objc_autoreleasePoolPop(pool);
	return [ret autorelease];
}
#endif

- (OFFileAttributes)attributesOfItemAtURI: (OFURI *)URI
{
	OFURIHandler *URIHandler;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if ((URIHandler = [OFURIHandler handlerForURI: URI]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	return [URIHandler attributesOfItemAtURI: URI];
}

#ifdef OF_HAVE_FILES
- (OFFileAttributes)attributesOfItemAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();
	OFFileAttributes ret;

	ret = [self attributesOfItemAtURI: [OFURI fileURIWithPath: path]];

	[ret retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}
#endif

- (void)setAttributes: (OFFileAttributes)attributes ofItemAtURI: (OFURI *)URI
{
	OFURIHandler *URIHandler;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if ((URIHandler = [OFURIHandler handlerForURI: URI]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	[URIHandler setAttributes: attributes ofItemAtURI: URI];
}

#ifdef OF_HAVE_FILES
- (void)setAttributes: (OFFileAttributes)attributes
	 ofItemAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();
	[self setAttributes: attributes
		ofItemAtURI: [OFURI fileURIWithPath: path]];
	objc_autoreleasePoolPop(pool);
}
#endif

- (bool)fileExistsAtURI: (OFURI *)URI
{
	OFURIHandler *URIHandler;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if ((URIHandler = [OFURIHandler handlerForURI: URI]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	return [URIHandler fileExistsAtURI: URI];
}

#ifdef OF_HAVE_FILES
- (bool)fileExistsAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();
	bool ret;

	ret = [self fileExistsAtURI: [OFURI fileURIWithPath: path]];

	objc_autoreleasePoolPop(pool);

	return ret;
}
#endif

- (bool)directoryExistsAtURI: (OFURI *)URI
{
	OFURIHandler *URIHandler;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if ((URIHandler = [OFURIHandler handlerForURI: URI]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	return [URIHandler directoryExistsAtURI: URI];
}

#ifdef OF_HAVE_FILES
- (bool)directoryExistsAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();
	bool ret;

	ret = [self directoryExistsAtURI: [OFURI fileURIWithPath: path]];

	objc_autoreleasePoolPop(pool);

	return ret;
}
#endif

- (void)createDirectoryAtURI: (OFURI *)URI
{
	OFURIHandler *URIHandler;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if ((URIHandler = [OFURIHandler handlerForURI: URI]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	[URIHandler createDirectoryAtURI: URI];
}

- (void)createDirectoryAtURI: (OFURI *)URI createParents: (bool)createParents
{
	void *pool = objc_autoreleasePoolPush();
	OFMutableURI *mutableURI;
	OFArray OF_GENERIC(OFString *) *components;
	OFMutableArray OF_GENERIC(OFURI *) *componentURIs;
	size_t componentURIsCount;
	ssize_t i;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if (!createParents) {
		[self createDirectoryAtURI: URI];
		return;
	}

	/*
	 * Try blindly creating the directory first.
	 *
	 * The reason for this is that we might be sandboxed, so attempting to
	 * create any of the parent directories will fail, while creating the
	 * directory itself will work.
	 */
	if ([self directoryExistsAtURI: URI])
		return;

	@try {
		[self createDirectoryAtURI: URI];
		return;
	} @catch (OFCreateDirectoryFailedException *e) {
		/*
		 * If we didn't fail because any of the parents is missing,
		 * there is no point in trying to create the parents.
		 */
		if (e.errNo != ENOENT)
			@throw e;
	}

	/*
	 * Because we might be sandboxed (and for remote URIs don't even know
	 * anything at all), we generate the URI for every component. We then
	 * iterate them in reverse order until we find the first existing
	 * directory, and then create subdirectories from there.
	 */
	mutableURI = [[URI mutableCopy] autorelease];
	mutableURI.percentEncodedPath = @"/";
	components = URI.pathComponents;
	componentURIs = [OFMutableArray arrayWithCapacity: components.count];

	for (OFString *component in components) {
		[mutableURI appendPathComponent: component];

		if (![mutableURI.percentEncodedPath isEqual: @"/"])
			[componentURIs addObject:
			    [[mutableURI copy] autorelease]];
	}

	componentURIsCount = componentURIs.count;
	for (i = componentURIsCount - 1; i > 0; i--) {
		if ([self directoryExistsAtURI:
		    [componentURIs objectAtIndex: i]])
			break;
	}

	if (++i == (ssize_t)componentURIsCount) {
		/*
		 * The URI exists, even though before we made sure it did not.
		 * That means it was created in the meantime by something else,
		 * so we're done here.
		 */
		objc_autoreleasePoolPop(pool);
		return;
	}

	for (; i < (ssize_t)componentURIsCount; i++)
		[self createDirectoryAtURI: [componentURIs objectAtIndex: i]];

	objc_autoreleasePoolPop(pool);
}

#ifdef OF_HAVE_FILES
- (void)createDirectoryAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();

	[self createDirectoryAtURI: [OFURI fileURIWithPath: path]];

	objc_autoreleasePoolPop(pool);
}

- (void)createDirectoryAtPath: (OFString *)path
		createParents: (bool)createParents
{
	void *pool = objc_autoreleasePoolPush();

	[self createDirectoryAtURI: [OFURI fileURIWithPath: path]
		     createParents: createParents];

	objc_autoreleasePoolPop(pool);
}
#endif

- (OFArray OF_GENERIC(OFURI *) *)contentsOfDirectoryAtURI: (OFURI *)URI
{
	OFURIHandler *URIHandler;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if ((URIHandler = [OFURIHandler handlerForURI: URI]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	return [URIHandler contentsOfDirectoryAtURI: URI];
}

#ifdef OF_HAVE_FILES
- (OFArray OF_GENERIC(OFString *) *)contentsOfDirectoryAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();
	OFArray OF_GENERIC(OFURI *) *URIs;
	OFMutableArray OF_GENERIC(OFString *) *ret;

	URIs = [self contentsOfDirectoryAtURI: [OFURI fileURIWithPath: path]];
	ret = [OFMutableArray arrayWithCapacity: URIs.count];

	for (OFURI *URI in URIs)
		[ret addObject: URI.lastPathComponent];

	[ret makeImmutable];
	[ret retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];

	if (status != 0)
		@throw [OFChangeCurrentDirectoryFailedException
		    exceptionWithPath: path
				errNo: errno];
# endif
}

- (void)changeCurrentDirectoryURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();

	[self changeCurrentDirectoryPath: URI.fileSystemRepresentation];

	objc_autoreleasePoolPop(pool);
}

- (void)copyItemAtPath: (OFString *)source toPath: (OFString *)destination
{
	void *pool = objc_autoreleasePoolPush();

	[self copyItemAtURI: [OFURI fileURIWithPath: source]
		      toURI: [OFURI fileURIWithPath: destination]];

	objc_autoreleasePoolPop(pool);
}
#endif

- (void)copyItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
	void *pool;
	OFURIHandler *URIHandler;
	OFFileAttributes attributes;
	OFFileAttributeType type;

	if (source == nil || destination == nil)
		@throw [OFInvalidArgumentException exception];

	pool = objc_autoreleasePoolPush();

	if ((URIHandler = [OFURIHandler handlerForURI: source]) == nil)
		@throw [OFUnsupportedProtocolException
		    exceptionWithURI: source];

	if ([URIHandler copyItemAtURI: source toURI: destination])
		return;

	if ([self fileExistsAtURI: destination])
		@throw [OFCopyItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: EEXIST];

	@try {
		attributes = [self attributesOfItemAtURI: source];
	} @catch (OFGetItemAttributesFailedException *e) {
		@throw [OFCopyItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: e.errNo];
	}

	type = attributes.fileType;

	if ([type isEqual: OFFileTypeDirectory]) {
		OFArray OF_GENERIC(OFURI *) *contents;

		@try {
			[self createDirectoryAtURI: destination];

			@try {
				OFFileAttributeKey key = OFFilePOSIXPermissions;
				OFNumber *permissions =
				    [attributes objectForKey: key];
				OFFileAttributes destinationAttributes;

				if (permissions != nil) {
					destinationAttributes = [OFDictionary
					    dictionaryWithObject: permissions
							  forKey: key];
					[self
					    setAttributes: destinationAttributes
					      ofItemAtURI: destination];
				}
			} @catch (OFNotImplementedException *e) {
			}

			contents = [self contentsOfDirectoryAtURI: source];
		} @catch (id e) {
			/*
			 * Only convert exceptions to OFCopyItemFailedException
			 * that have an errNo property. This covers all I/O
			 * related exceptions from the operations used to copy
			 * an item, all others should be left as is.
			 */
			if ([e respondsToSelector: @selector(errNo)])
				@throw [OFCopyItemFailedException
				    exceptionWithSourceURI: source
					    destinationURI: destination
						     errNo: [e errNo]];

			@throw e;
		}

		for (OFURI *item in contents) {
			void *pool2 = objc_autoreleasePoolPush();
			OFURI *destinationURI = [destination
			    URIByAppendingPathComponent:
			    item.lastPathComponent];

			[self copyItemAtURI: item toURI: destinationURI];

			objc_autoreleasePoolPop(pool2);
		}
	} else if ([type isEqual: OFFileTypeRegular]) {
		size_t pageSize = [OFSystemInfo pageSize];
		OFStream *sourceStream = nil;
		OFStream *destinationStream = nil;
		char *buffer;

		buffer = OFAllocMemory(1, pageSize);
		@try {
			sourceStream = [OFURIHandler openItemAtURI: source
							      mode: @"r"];
			destinationStream = [OFURIHandler
			    openItemAtURI: destination
				     mode: @"w"];

			while (!sourceStream.atEndOfStream) {
				size_t length;

				length = [sourceStream
				    readIntoBuffer: buffer

				if (permissions != nil) {
					destinationAttributes = [OFDictionary
					    dictionaryWithObject: permissions
							  forKey: key];
					[self
					    setAttributes: destinationAttributes
					      ofItemAtURI: destination];
				}
			} @catch (OFNotImplementedException *e) {
			}
		} @catch (id e) {
			/*
			 * Only convert exceptions to OFCopyItemFailedException
			 * that have an errNo property. This covers all I/O
			 * related exceptions from the operations used to copy
			 * an item, all others should be left as is.
			 */
			if ([e respondsToSelector: @selector(errNo)])
				@throw [OFCopyItemFailedException
				    exceptionWithSourceURI: source
					    destinationURI: destination
						     errNo: [e errNo]];

			@throw e;
		} @finally {
			[sourceStream close];
			[destinationStream close];
			OFFreeMemory(buffer);
		}
	} else if ([type isEqual: OFFileTypeSymbolicLink]) {
		@try {
			OFString *linkDestination =
			    attributes.fileSymbolicLinkDestination;

			[self createSymbolicLinkAtURI: destination
				  withDestinationPath: linkDestination];
		} @catch (id e) {
			/*
			 * Only convert exceptions to OFCopyItemFailedException
			 * that have an errNo property. This covers all I/O
			 * related exceptions from the operations used to copy
			 * an item, all others should be left as is.
			 */
			if ([e respondsToSelector: @selector(errNo)])
				@throw [OFCopyItemFailedException
				    exceptionWithSourceURI: source
					    destinationURI: destination
						     errNo: [e errNo]];

			@throw e;
		}
	} else
		@throw [OFCopyItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: EINVAL];

	objc_autoreleasePoolPop(pool);
}

#ifdef OF_HAVE_FILES
- (void)moveItemAtPath: (OFString *)source toPath: (OFString *)destination
{
	void *pool = objc_autoreleasePoolPush();
	[self moveItemAtURI: [OFURI fileURIWithPath: source]
		      toURI: [OFURI fileURIWithPath: destination]];
	objc_autoreleasePoolPop(pool);
}
#endif

- (void)moveItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
	void *pool;
	OFURIHandler *URIHandler;

	if (source == nil || destination == nil)
		@throw [OFInvalidArgumentException exception];

	pool = objc_autoreleasePoolPush();

	if ((URIHandler = [OFURIHandler handlerForURI: source]) == nil)
		@throw [OFUnsupportedProtocolException
		    exceptionWithURI: source];

	@try {
		if ([URIHandler moveItemAtURI: source toURI: destination])
			return;
	} @catch (OFMoveItemFailedException *e) {
		if (e.errNo != EXDEV)
			@throw e;
	}

	if ([self fileExistsAtURI: destination])
		@throw [OFMoveItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: EEXIST];

	@try {
		[self copyItemAtURI: source toURI: destination];
	} @catch (OFCopyItemFailedException *e) {
		[self removeItemAtURI: destination];

		@throw [OFMoveItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: e.errNo];
	}

	@try {
		[self removeItemAtURI: source];
	} @catch (OFRemoveItemFailedException *e) {
		@throw [OFMoveItemFailedException
		    exceptionWithSourceURI: source
			    destinationURI: destination
				     errNo: e.errNo];
	}

	objc_autoreleasePoolPop(pool);
}

- (void)removeItemAtURI: (OFURI *)URI
{
	OFURIHandler *URIHandler;

	if (URI == nil)
		@throw [OFInvalidArgumentException exception];

	if ((URIHandler = [OFURIHandler handlerForURI: URI]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	[URIHandler removeItemAtURI: URI];
}

#ifdef OF_HAVE_FILES
- (void)removeItemAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();
	[self removeItemAtURI: [OFURI fileURIWithPath: path]];
	objc_autoreleasePoolPop(pool);
}
#endif

- (void)linkItemAtURI: (OFURI *)source toURI: (OFURI *)destination
{
	void *pool = objc_autoreleasePoolPush();
	OFURIHandler *URIHandler;

	if (source == nil || destination == nil)
		@throw [OFInvalidArgumentException exception];

	if (![destination.scheme isEqual: source.scheme])
		@throw [OFInvalidArgumentException exception];

	URIHandler = [OFURIHandler handlerForURI: source];

	if (URIHandler == nil)
		@throw [OFUnsupportedProtocolException
		    exceptionWithURI: source];

	[URIHandler linkItemAtURI: source toURI: destination];

	objc_autoreleasePoolPop(pool);
}

#ifdef OF_FILE_MANAGER_SUPPORTS_LINKS
- (void)linkItemAtPath: (OFString *)source toPath: (OFString *)destination
{
	void *pool = objc_autoreleasePoolPush();
	[self linkItemAtURI: [OFURI fileURIWithPath: source]
		      toURI: [OFURI fileURIWithPath: destination]];
	objc_autoreleasePoolPop(pool);
}
#endif

- (void)createSymbolicLinkAtURI: (OFURI *)URI
	    withDestinationPath: (OFString *)target
{
	void *pool = objc_autoreleasePoolPush();
	OFURIHandler *URIHandler;

	if (URI == nil || target == nil)
		@throw [OFInvalidArgumentException exception];

	URIHandler = [OFURIHandler handlerForURI: URI];

	if (URIHandler == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	[URIHandler createSymbolicLinkAtURI: URI withDestinationPath: target];

	objc_autoreleasePoolPop(pool);
}

#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
- (void)createSymbolicLinkAtPath: (OFString *)path
	     withDestinationPath: (OFString *)target
{
	void *pool = objc_autoreleasePoolPush();
	[self createSymbolicLinkAtURI: [OFURI fileURIWithPath: path]
		  withDestinationPath: target];
	objc_autoreleasePoolPop(pool);
}
#endif
@end

@implementation OFDefaultFileManager

OF_ASSUME_NONNULL_BEGIN

@class OFDictionary OF_GENERIC(KeyType, ObjectType);
@class OFHTTPClient;
@class OFHTTPRequest;
@class OFHTTPResponse;

@class OFStream;
@class OFTCPSocket;
@class OFTLSStream;
@class OFURI;

/**
 * @protocol OFHTTPClientDelegate OFHTTPClient.h ObjFW/OFHTTPClient.h
 *
 * @brief A delegate for OFHTTPClient.
 */
@protocol OFHTTPClientDelegate <OFObject>

 * to detect a redirect.
 *
 * This callback will only be called if the OFHTTPClient will follow a
 * redirect. If the maximum number of redirects has been reached already, this
 * callback will not be called.
 *
 * @param client The OFHTTPClient which wants to follow a redirect
 * @param URI The URI to which it will follow a redirect
 * @param statusCode The status code for the redirection
 * @param request The request for which the OFHTTPClient wants to redirect.
 *		  You are allowed to change the request's headers from this
 *		  callback and they will be used when following the redirect
 *		  (e.g. to set the cookies for the new URI), however, keep in
 *		  mind that this will change the request you originally passed.
 * @param response The response indicating the redirect
 * @return A boolean whether the OFHTTPClient should follow the redirect
 */
-	       (bool)client: (OFHTTPClient *)client
  shouldFollowRedirectToURI: (OFURI *)URI
		 statusCode: (short)statusCode
		    request: (OFHTTPRequest *)request
		   response: (OFHTTPResponse *)response;
@end

/**
 * @class OFHTTPClient OFHTTPClient.h ObjFW/OFHTTPClient.h
 *
 * @brief A class for performing HTTP requests.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFHTTPClient: OFObject
{
#ifdef OF_HTTP_CLIENT_M
@public
#endif
	OFObject <OFHTTPClientDelegate> *_Nullable _delegate;
	bool _allowsInsecureRedirects, _inProgress;
	OFStream *_Nullable _stream;
	OFURI *_Nullable _lastURI;
	bool _lastWasHEAD;
	OFHTTPResponse *_Nullable _lastResponse;
}

/**
 * @brief The delegate of the HTTP request.
 */

#include <string.h>

#import "OFHTTPClient.h"
#import "OFData.h"
#import "OFDictionary.h"
#import "OFHTTPRequest.h"
#import "OFHTTPResponse.h"

#import "OFKernelEventObserver.h"
#import "OFNumber.h"
#import "OFRunLoop.h"
#import "OFString.h"
#import "OFTCPSocket.h"
#import "OFTLSStream.h"
#import "OFURI.h"

#import "OFAlreadyConnectedException.h"
#import "OFHTTPRequestFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFInvalidEncodingException.h"
#import "OFInvalidFormatException.h"
#import "OFInvalidServerResponseException.h"

@end

static OFString *
constructRequestString(OFHTTPRequest *request)
{
	void *pool = objc_autoreleasePoolPush();
	OFHTTPRequestMethod method = request.method;
	OFURI *URI = request.URI;
	OFString *path;
	OFString *user = URI.user, *password = URI.password;
	OFMutableString *requestString;
	OFMutableDictionary OF_GENERIC(OFString *, OFString *) *headers;
	bool hasContentLength, chunked;
	OFEnumerator OF_GENERIC(OFString *) *keyEnumerator, *objectEnumerator;
	OFString *key, *object;

	if (URI.path.length > 0)
		path = URI.percentEncodedPath;
	else
		path = @"/";

	requestString = [OFMutableString stringWithFormat:
	    @"%s %@", OFHTTPRequestMethodName(method), path];

	if (URI.query != nil) {
		[requestString appendString: @"?"];
		[requestString appendString: URI.percentEncodedQuery];
	}

	[requestString appendString: @" HTTP/"];
	[requestString appendString: request.protocolVersionString];
	[requestString appendString: @"\r\n"];

	headers = [[request.headers mutableCopy] autorelease];
	if (headers == nil)
		headers = [OFMutableDictionary dictionary];

	if ([headers objectForKey: @"Host"] == nil) {
		OFNumber *port = URI.port;

		if (port != nil) {
			OFString *host = [OFString stringWithFormat:
			    @"%@:%@", URI.percentEncodedHost, port];

			[headers setObject: host forKey: @"Host"];
		} else
			[headers setObject: URI.percentEncodedHost
				    forKey: @"Host"];
	}

	if ((user.length > 0 || password.length > 0) &&
	    [headers objectForKey: @"Authorization"] == nil) {
		OFMutableData *authorizationData = [OFMutableData data];
		OFString *authorization;

		 didPerformRequest: _request
			  response: nil
			 exception: exception];
}

- (void)createResponseWithStreamOrThrow: (OFStream *)stream
{
	OFURI *URI = _request.URI;
	OFHTTPClientResponse *response;
	OFString *connectionHeader;
	bool keepAlive;
	OFString *location;
	id exception;

	response = [[[OFHTTPClientResponse alloc] initWithStream: stream]

			keepAlive = false;
	}

	if (keepAlive) {
		response.of_keepAlive = true;

		_client->_stream = [stream retain];
		_client->_lastURI = [URI copy];
		_client->_lastWasHEAD =
		    (_request.method == OFHTTPRequestMethodHead);
		_client->_lastResponse = [response retain];
	}

	if (_redirects > 0 && (_status == 301 || _status == 302 ||
	    _status == 303 || _status == 307) &&
	    (location = [_serverHeaders objectForKey: @"Location"]) != nil) {
		bool follow = true;
		OFURI *newURI;
		OFString *newURIScheme;

		newURI = [OFURI URIWithString: location relativeToURI: URI];
		newURIScheme = newURI.scheme;

		if ([newURIScheme caseInsensitiveCompare: @"http"] !=
		    OFOrderedSame &&
		    [newURIScheme caseInsensitiveCompare: @"https"] !=
		    OFOrderedSame)
			follow = false;

		if (!_client->_allowsInsecureRedirects &&
		    [URI.scheme caseInsensitiveCompare: @"https"] ==
		    OFOrderedSame &&
		    [newURIScheme caseInsensitiveCompare: @"http"] ==
		    OFOrderedSame)
			follow = false;

		if (follow && [_client->_delegate respondsToSelector:
		    @selector(client:shouldFollowRedirectToURI:statusCode:
		    request:response:)])
			follow = [_client->_delegate client: _client
				  shouldFollowRedirectToURI: newURI
						 statusCode: _status
						    request: _request
						   response: response];
		else if (follow)
			follow = defaultShouldFollow(_request.method, _status);

		if (follow) {
			OFDictionary OF_GENERIC(OFString *, OFString *)
			    *headers = _request.headers;
			OFHTTPRequest *newRequest =
			    [[_request copy] autorelease];
			OFMutableDictionary *newHeaders =
			    [[headers mutableCopy] autorelease];

			if (![newURI.host isEqual: URI.host])
				[newHeaders removeObjectForKey: @"Host"];

			/*
			 * 303 means the request should be converted to a GET
			 * request before redirection. This also means stripping
			 * the entity of the request.
			 */

					    [key hasPrefix: @"Transfer-"])
						[newHeaders
						    removeObjectForKey: key];

				newRequest.method = OFHTTPRequestMethodGet;
			}

			newRequest.URI = newURI;
			newRequest.headers = newHeaders;

			_client->_inProgress = false;

			[_client asyncPerformRequest: newRequest
					   redirects: _redirects - 1];
			return;

	if ([_client->_delegate respondsToSelector:
	    @selector(client:didCreateTCPSocket:request:)])
		[_client->_delegate client: _client
			didCreateTCPSocket: sock
				   request: _request];

	if ([_request.URI.scheme caseInsensitiveCompare: @"https"] ==
	    OFOrderedSame) {
		OFTLSStream *stream;
		@try {
			stream = [OFTLSStream streamWithStream: sock];
		} @catch (OFNotImplementedException *e) {
			[self raiseException:
			    [OFUnsupportedProtocolException
			    exceptionWithURI: _request.URI]];
			return;
		}

		if ([_client->_delegate respondsToSelector:
		    @selector(client:didCreateTLSStream:request:)])
			[_client->_delegate client: _client
				didCreateTLSStream: stream
					   request: _request];

		stream.delegate = self;
		[stream asyncPerformClientHandshakeWithHost: _request.URI.host];
	} else {
		sock.delegate = self;
		[self performSelector: @selector(handleStream:)
			   withObject: sock
			   afterDelay: 0];
	}
}

	[self performSelector: @selector(handleStream:)
		   withObject: stream
		   afterDelay: 0];
}

- (void)start
{
	OFURI *URI = _request.URI;
	OFStream *stream;

	/* Can we reuse the last socket? */
	if (_client->_stream != nil && !_client->_stream.atEndOfStream &&
	    [_client->_lastURI.scheme isEqual: URI.scheme] &&
	    [_client->_lastURI.host isEqual: URI.host] &&
	    (_client->_lastURI.port == URI.port ||
	    [_client->_lastURI.port isEqual: URI.port]) &&
	    (_client->_lastWasHEAD || _client->_lastResponse.atEndOfStream)) {
		/*
		 * Set _stream to nil, so that in case of an error it won't be
		 * reused. If everything is successful, we set _stream again
		 * at the end.
		 */
		stream = [_client->_stream autorelease];
		_client->_stream = nil;

		[_client->_lastURI release];
		_client->_lastURI = nil;

		[_client->_lastResponse release];
		_client->_lastResponse = nil;

		stream.delegate = self;

		[self performSelector: @selector(handleStream:)
			   withObject: stream
			   afterDelay: 0];
	} else
		[self closeAndReconnect];
}

- (void)closeAndReconnect
{
	@try {
		OFURI *URI = _request.URI;
		OFTCPSocket *sock;
		uint16_t port;
		OFNumber *URIPort;

		[_client close];

		sock = [OFTCPSocket socket];

		if ([URI.scheme caseInsensitiveCompare: @"https"] ==
		    OFOrderedSame)
			port = 443;
		else
			port = 80;

		URIPort = URI.port;
		if (URIPort != nil)
			port = URIPort.unsignedShortValue;

		sock.delegate = self;
		[sock asyncConnectToHost: URI.host port: port];
	} @catch (id e) {
		[self raiseException: e];
	}
}
@end

@implementation OFHTTPClientRequestBodyStream

		[_delegate     client: client
		    didReceiveHeaders: headers
			   statusCode: statusCode
			      request: request];
}

-	       (bool)client: (OFHTTPClient *)client
  shouldFollowRedirectToURI: (OFURI *)URI
		 statusCode: (short)statusCode
		    request: (OFHTTPRequest *)request
		   response: (OFHTTPResponse *)response
{
	if ([_delegate respondsToSelector: @selector(
	    client:shouldFollowRedirectToURI:statusCode:request:response:)])
		return [_delegate      client: client
		    shouldFollowRedirectToURI: URI
				   statusCode: statusCode
				      request: request
				     response: response];
	else
		return defaultShouldFollow(request.method, statusCode);
}
@end

	[self asyncPerformRequest: request redirects: defaultRedirects];
}

- (void)asyncPerformRequest: (OFHTTPRequest *)request
		  redirects: (unsigned int)redirects
{
	void *pool = objc_autoreleasePoolPush();
	OFURI *URI = request.URI;
	OFString *scheme = URI.scheme;

	if ([scheme caseInsensitiveCompare: @"http"] != OFOrderedSame &&
	    [scheme caseInsensitiveCompare: @"https"] != OFOrderedSame)
		@throw [OFUnsupportedProtocolException exceptionWithURI: URI];

	if (_inProgress)
		@throw [OFAlreadyConnectedException exception];

	_inProgress = true;

	[[[[OFHTTPClientRequestHandler alloc]
	    initWithClient: self
		   request: request
		 redirects: redirects] autorelease] start];

	objc_autoreleasePoolPop(pool);
}

- (void)close
{
	[_stream release];
	_stream = nil;

	[_lastURI release];
	_lastURI = nil;

	[_lastResponse release];
	_lastResponse = nil;
}
@end

#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN

@class OFArray OF_GENERIC(ObjectType);
@class OFDate;
@class OFDictionary OF_GENERIC(KeyType, ObjectType);

@class OFMutableArray OF_GENERIC(ObjectType);
@class OFURI;

/**
 * @class OFHTTPCookie OFHTTPCookie.h ObjFW/OFHTTPCookie.h
 *
 * @brief A class for storing and manipulating HTTP cookies.
 */
OF_SUBCLASSING_RESTRICTED

/**
 * @brief An array of other attributes.
 */
@property (readonly, nonatomic)
    OFMutableArray OF_GENERIC(OFString *) *extensions;

/**
 * @brief Parses the specified response header fields for the specified URI and
 *	  returns an array of cookies.
 *
 * @param headerFields The response header fields to parse
 * @param URI The URI for the response header fields to parse
 * @return An array of cookies
 * @throw OFInvalidFormatException The specified response header has an invalid
 *				   format
 */
+ (OFArray OF_GENERIC(OFHTTPCookie *) *)cookiesWithResponseHeaderFields:
    (OFDictionary OF_GENERIC(OFString *, OFString *) *)headerFields
    forURI: (OFURI *)URI;

/**
 * @brief Returns the request header fields for the specified cookies.
 *
 * @param cookies The cookies to return the request header fields for
 * @return The request header fields for the specified cookies
 */

#include "config.h"

#import "OFHTTPCookie.h"
#import "OFArray.h"
#import "OFDate.h"
#import "OFDictionary.h"
#import "OFURI.h"

#import "OFInvalidFormatException.h"

static void
handleAttribute(OFHTTPCookie *cookie, OFString *name, OFString *value)
{
	OFString *lowercaseName = name.lowercaseString;

@implementation OFHTTPCookie
@synthesize name = _name, value = _value, domain = _domain, path = _path;
@synthesize expires = _expires, secure = _secure, HTTPOnly = _HTTPOnly;
@synthesize extensions = _extensions;

+ (OFArray OF_GENERIC(OFHTTPCookie *) *)cookiesWithResponseHeaderFields:
    (OFDictionary OF_GENERIC(OFString *, OFString *) *)headerFields
    forURI: (OFURI *)URI
{
	OFMutableArray OF_GENERIC(OFHTTPCookie *) *ret = [OFMutableArray array];
	void *pool = objc_autoreleasePoolPush();
	OFString *string = [headerFields objectForKey: @"Set-Cookie"];
	OFString *domain = URI.host;
	const OFUnichar *characters = string.characters;
	size_t length = string.length, last = 0;
	enum {
		statePreName,
		stateName,
		stateExpectValue,
		stateValue,

#import "OFObject.h"

OF_ASSUME_NONNULL_BEGIN

@class OFArray OF_GENERIC(ObjectType);
@class OFHTTPCookie;

@class OFMutableArray OF_GENERIC(ObjectType);
@class OFURI;

/**
 * @class OFHTTPCookieManager OFHTTPCookieManager.h ObjFW/OFHTTPCookieManager.h
 *
 * @brief A class for managing cookies for multiple domains.
 */
OF_SUBCLASSING_RESTRICTED

 * @brief Create a new cookie manager.
 *
 * @return A new, autoreleased OFHTTPCookieManager
 */
+ (instancetype)manager;

/**
 * @brief Adds the specified cookie for the specified URI.
 *
 * @warning This modifies the cookie (e.g. it sets the domain if it is unset)!
 *	    If you do not want this, pass a copy!
 *
 * @param cookie The cookie to add to the manager
 * @param URI The URI for which the cookie should be added
 */
- (void)addCookie: (OFHTTPCookie *)cookie forURI: (OFURI *)URI;

/**
 * @brief Adds the specified cookies for the specified URI.
 *
 * @warning This modifies the cookies (e.g. it sets the domain if it is unset)!
 *	    If you do not want this, pass copies!
 *
 * @param cookies An array of cookies to add to the manager
 * @param URI The URI for which the cookies should be added
 */
- (void)addCookies: (OFArray OF_GENERIC(OFHTTPCookie *) *)cookies
	    forURI: (OFURI *)URI;

/**
 * @brief Returns the cookies for the specified URI.
 *
 * @param URI The URI for which the cookies should be returned
 * @return The cookies for the specified URI
 */
- (OFArray OF_GENERIC(OFHTTPCookie *) *)cookiesForURI: (OFURI *)URI;

/**
 * @brief Purges all expired cookies.
 */
- (void)purgeExpiredCookies;
@end

OF_ASSUME_NONNULL_END

#include "config.h"

#import "OFHTTPCookieManager.h"
#import "OFArray.h"
#import "OFDate.h"
#import "OFHTTPCookie.h"
#import "OFURI.h"

@implementation OFHTTPCookieManager
+ (instancetype)manager
{
	return [[[self alloc] init] autorelease];
}

}

- (OFArray OF_GENERIC(OFHTTPCookie *) *)cookies
{
	return [[_cookies copy] autorelease];
}

- (void)addCookie: (OFHTTPCookie *)cookie forURI: (OFURI *)URI
{
	void *pool = objc_autoreleasePoolPush();
	OFString *cookieDomain, *URIHost;
	size_t i;

	if (![cookie.path hasPrefix: @"/"])
		cookie.path = @"/";

	if (cookie.secure &&
	    [URI.scheme caseInsensitiveCompare: @"https"] != OFOrderedSame) {
		objc_autoreleasePoolPop(pool);
		return;
	}

	cookieDomain = cookie.domain.lowercaseString;
	cookie.domain = cookieDomain;

	URIHost = URI.host.lowercaseString;
	if (![cookieDomain isEqual: URIHost]) {
		URIHost = [@"." stringByAppendingString: URIHost];

		if (![cookieDomain hasSuffix: URIHost]) {
			objc_autoreleasePoolPop(pool);
			return;
		}
	}

	i = 0;
	for (OFHTTPCookie *iter in _cookies) {

	[_cookies addObject: cookie];

	objc_autoreleasePoolPop(pool);
}

- (void)addCookies: (OFArray OF_GENERIC(OFHTTPCookie *) *)cookies
	    forURI: (OFURI *)URI
{
	for (OFHTTPCookie *cookie in cookies)
		[self addCookie: cookie forURI: URI];
}

- (OFArray OF_GENERIC(OFHTTPCookie *) *)cookiesForURI: (OFURI *)URI
{
	OFMutableArray *ret = [OFMutableArray array];

	for (OFHTTPCookie *cookie in _cookies) {
		void *pool;
		OFDate *expires;
		OFString *cookieDomain, *URIHost, *cookiePath, *URIPath;
		bool match;

		expires = cookie.expires;
		if (expires != nil && expires.timeIntervalSinceNow <= 0)
			continue;

		if (cookie.secure && [URI.scheme caseInsensitiveCompare:
		    @"https"] != OFOrderedSame)
			continue;

		pool = objc_autoreleasePoolPush();

		cookieDomain = cookie.domain.lowercaseString;
		URIHost = URI.host.lowercaseString;
		if ([cookieDomain hasPrefix: @"."]) {
			if ([URIHost hasSuffix: cookieDomain])
				match = true;
			else {
				cookieDomain =
				    [cookieDomain substringFromIndex: 1];

				match = [cookieDomain isEqual: URIHost];
			}
		} else
			match = [cookieDomain isEqual: URIHost];

		if (!match) {
			objc_autoreleasePoolPop(pool);
			continue;
		}

		cookiePath = cookie.path;
		URIPath = URI.path;
		if (![cookiePath isEqual: @"/"]) {
			if ([cookiePath isEqual: URIPath])
				match = true;
			else {
				if (![cookiePath hasSuffix: @"/"])
					cookiePath = [cookiePath
					    stringByAppendingString: @"/"];

				match = [URIPath hasPrefix: cookiePath];
			}

			if (!match) {
				objc_autoreleasePoolPop(pool);
				continue;
			}
		}

 *
 * 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.
 */

#import "OFURIHandler.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFHTTPURIHandler: OFURIHandler
@end

OF_ASSUME_NONNULL_END

 * 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 "OFHTTPURIHandler.h"
#import "OFHTTPClient.h"
#import "OFHTTPRequest.h"
#import "OFHTTPResponse.h"

@implementation OFHTTPURIHandler
- (OFStream *)openItemAtURI: (OFURI *)URI mode: (OFString *)mode
{
	void *pool = objc_autoreleasePoolPush();
	OFHTTPClient *client = [OFHTTPClient client];
	OFHTTPRequest *request = [OFHTTPRequest requestWithURI: URI];
	OFHTTPResponse *response = [client performRequest: request];

	[response retain];

	objc_autoreleasePoolPop(pool);

	return [response autorelease];

#import "OFObject.h"
#import "OFSocket.h"
#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN

@class OFURI;
@class OFDictionary OF_GENERIC(KeyType, ObjectType);
@class OFData;
@class OFString;

/** @file */

/**
 * @brief The type of an HTTP request.
 */

 * @class OFHTTPRequest OFHTTPRequest.h ObjFW/OFHTTPRequest.h
 *
 * @brief A class for storing HTTP requests.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFHTTPRequest: OFObject <OFCopying>
{
	OFURI *_URI;
	OFHTTPRequestMethod _method;
	OFHTTPRequestProtocolVersion _protocolVersion;
	OFDictionary OF_GENERIC(OFString *, OFString *) *_Nullable _headers;
	OFSocketAddress _remoteAddress;
	bool _hasRemoteAddress;
}

/**
 * @brief The URI of the HTTP request.
 */
@property (copy, nonatomic) OFURI *URI;

/**
 * @brief The protocol version of the HTTP request.
 *
 * @throw OFUnsupportedVersionException The specified version cannot be set
 *					because it is not supported
 */

 * @brief The remote address from which the request originates.
 *
 * @note The setter creates a copy of the remote address.
 */
@property OF_NULLABLE_PROPERTY (nonatomic) const OFSocketAddress *remoteAddress;

/**
 * @brief Creates a new OFHTTPRequest with the specified URI.
 *
 * @param URI The URI for the request
 * @return A new, autoreleased OFHTTPRequest
 */
+ (instancetype)requestWithURI: (OFURI *)URI;

/**
 * @brief Initializes an already allocated OFHTTPRequest with the specified URI.
 *
 * @param URI The URI for the request
 * @return An initialized OFHTTPRequest
 */
- (instancetype)initWithURI: (OFURI *)URI;

- (instancetype)init OF_UNAVAILABLE;
@end

#ifdef __cplusplus
extern "C" {
#endif

 */

#include "config.h"

#include <string.h>

#import "OFHTTPRequest.h"
#import "OFString.h"
#import "OFURI.h"
#import "OFDictionary.h"
#import "OFData.h"
#import "OFArray.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfRangeException.h"
#import "OFUnsupportedVersionException.h"

const char *

	if ([string isEqual: @"CONNECT"])
		return OFHTTPRequestMethodConnect;

	@throw [OFInvalidFormatException exception];
}

@implementation OFHTTPRequest
@synthesize URI = _URI, method = _method, headers = _headers;

+ (instancetype)requestWithURI: (OFURI *)URI
{
	return [[[self alloc] initWithURI: URI] autorelease];
}

- (instancetype)initWithURI: (OFURI *)URI
{
	self = [super init];

	@try {
		_URI = [URI copy];
		_method = OFHTTPRequestMethodGet;
		_protocolVersion.major = 1;
		_protocolVersion.minor = 1;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_URI release];
	[_headers release];

	[super dealloc];
}

- (void)setRemoteAddress: (const OFSocketAddress *)remoteAddress
{

		return &_remoteAddress;

	return NULL;
}

- (id)copy
{
	OFHTTPRequest *copy = [[OFHTTPRequest alloc] initWithURI: _URI];

	@try {
		copy->_method = _method;
		copy->_protocolVersion = _protocolVersion;
		copy.headers = _headers;
		copy.remoteAddress = self.remoteAddress;
	} @catch (id e) {

		return false;

	request = object;

	if (request->_method != _method ||
	    request->_protocolVersion.major != _protocolVersion.major ||
	    request->_protocolVersion.minor != _protocolVersion.minor ||
	    ![request->_URI isEqual: _URI] ||
	    ![request->_headers isEqual: _headers])
		return false;

	if (request.remoteAddress != self.remoteAddress &&
	    !OFSocketAddressEqual(request.remoteAddress, self.remoteAddress))
		return false;

	return true;
}

- (unsigned long)hash
{
	unsigned long hash;

	OFHashInit(&hash);

	OFHashAddByte(&hash, _method);
	OFHashAddByte(&hash, _protocolVersion.major);
	OFHashAddByte(&hash, _protocolVersion.minor);
	OFHashAddHash(&hash, _URI.hash);
	OFHashAddHash(&hash, _headers.hash);
	if (_hasRemoteAddress)
		OFHashAddHash(&hash, OFSocketAddressHash(&_remoteAddress));

	OFHashFinalize(&hash);

	return hash;

	if (_hasRemoteAddress)
		remoteAddress = OFSocketAddressString(&_remoteAddress);
	else
		remoteAddress = nil;

	ret = [[OFString alloc] initWithFormat:
	    @"<%@:\n\tURI = %@\n"
	    @"\tMethod = %s\n"
	    @"\tHeaders = %@\n"
	    @"\tRemote address = %@\n"
	    @">",
	    self.class, _URI, method, indentedHeaders, remoteAddress];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}
@end

#import "OFHTTPServer.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFDate.h"
#import "OFDictionary.h"
#import "OFHTTPRequest.h"
#import "OFHTTPResponse.h"

#import "OFNumber.h"
#import "OFSocket+Private.h"
#import "OFTCPSocket.h"
#import "OFThread.h"
#import "OFTimer.h"
#import "OFURI.h"

#import "OFAlreadyConnectedException.h"
#import "OFInvalidArgumentException.h"
#import "OFInvalidEncodingException.h"
#import "OFInvalidFormatException.h"
#import "OFNotOpenException.h"
#import "OFOutOfMemoryException.h"

			      date, _server.name];
	return false;
}

- (void)createResponse
{
	void *pool = objc_autoreleasePoolPush();
	OFMutableURI *URI;
	OFHTTPRequest *request;
	OFHTTPServerResponse *response;
	size_t pos;

	[_timer invalidate];
	[_timer release];
	_timer = nil;

	if (_host == nil || _port == 0) {
		if (_HTTPMinorVersion > 0) {
			[self sendErrorAndClose: 400];
			return;
		}

		[_host release];
		_host = [_server.host copy];
		_port = [_server port];
	}

	URI = [OFMutableURI URIWithScheme: @"http"];
	URI.host = _host;
	if (_port != 80)
		URI.port = [OFNumber numberWithUnsignedShort: _port];

	@try {
		if ((pos = [_path rangeOfString: @"?"].location) !=
		    OFNotFound) {
			OFString *path, *query;

			path = [_path substringToIndex: pos];
			query = [_path substringFromIndex: pos + 1];

			URI.percentEncodedPath = path;
			URI.percentEncodedQuery = query;
		} else
			URI.percentEncodedPath = _path;
	} @catch (OFInvalidFormatException *e) {
		objc_autoreleasePoolPop(pool);
		[self sendErrorAndClose: 400];
		return;
	}

	[URI makeImmutable];

	request = [OFHTTPRequest requestWithURI: URI];
	request.method = _method;
	request.protocolVersion =
	    (OFHTTPRequestProtocolVersion){ 1, _HTTPMinorVersion };
	request.headers = _headers;
	request.remoteAddress = _socket.remoteAddress;

	response = [[[OFHTTPServerResponse alloc]

#import "OFObject.h"
#import "OFString.h"
#import "OFINICategory.h"

OF_ASSUME_NONNULL_BEGIN


@class OFMutableArray OF_GENERIC(ObjectType);
@class OFURI;

/**
 * @class OFINIFile OFINIFile.h ObjFW/OFINIFile.h
 *
 * @brief A class for reading, creating and modifying INI files.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFINIFile: OFObject
{
	OFMutableArray OF_GENERIC(OFINICategory *) *_categories;
}

/**
 * @brief All categories in the INI file.
 */
@property (readonly, nonatomic) OFArray OF_GENERIC(OFINICategory *) *categories;

/**
 * @brief Creates a new OFINIFile with the contents of the specified file.
 *
 * @param URI The URI to the file whose contents the OFINIFile should contain
 *
 * @return A new, autoreleased OFINIFile with the contents of the specified file
 * @throw OFInvalidFormatException The format of the specified INI file is
 *				   invalid
 * @throw OFInvalidEncodingException The INI file is not in the specified
 *				     encoding
 */
+ (instancetype)fileWithURI: (OFURI *)URI;

/**
 * @brief Creates a new OFINIFile with the contents of the specified file in
 *	  the specified encoding.
 *
 * @param URI The URI to the file whose contents the OFINIFile should contain
 * @param encoding The encoding of the specified file
 * @return A new, autoreleased OFINIFile with the contents of the specified file
 * @throw OFInvalidFormatException The format of the specified INI file is
 *				   invalid
 * @throw OFInvalidEncodingException The INI file is not in the specified
 *				     encoding
 */
+ (instancetype)fileWithURI: (OFURI *)URI encoding: (OFStringEncoding)encoding;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated OFINIFile with the contents of the
 *	  specified file.
 *
 * @param URI The URI to the file whose contents the OFINIFile should contain
 *
 * @return An initialized OFINIFile with the contents of the specified file
 * @throw OFInvalidFormatException The format of the specified INI file is
 *				   invalid
 * @throw OFInvalidEncodingException The INI file is not in the specified
 *				     encoding
 */
- (instancetype)initWithURI: (OFURI *)URI;

/**
 * @brief Initializes an already allocated OFINIFile with the contents of the
 *	  specified file in the specified encoding.
 *
 * @param URI The URI to the file whose contents the OFINIFile should contain
 * @param encoding The encoding of the specified file
 * @return An initialized OFINIFile with the contents of the specified file
 * @throw OFInvalidFormatException The format of the specified INI file is
 *				   invalid
 * @throw OFInvalidEncodingException The INI file is not in the specified
 *				     encoding
 */
- (instancetype)initWithURI: (OFURI *)URI
		   encoding: (OFStringEncoding)encoding
    OF_DESIGNATED_INITIALIZER;

/**
 * @brief Returns an @ref OFINICategory for the category with the specified
 *	  name.
 *
 * @param name The name of the category for which an @ref OFINICategory should
 *	       be returned
 *
 * @return An @ref OFINICategory for the category with the specified name
 */
- (OFINICategory *)categoryForName: (OFString *)name;

/**
 * @brief Writes the contents of the OFINIFile to a file.
 *
 * @param URI The URI of the file to write to
 */
- (void)writeToURI: (OFURI *)URI;

/**
 * @brief Writes the contents of the OFINIFile to a file in the specified
 *	  encoding.
 *
 * @param URI The URI of the file to write to
 * @param encoding The encoding to use
 */
- (void)writeToURI: (OFURI *)URI encoding: (OFStringEncoding)encoding;
@end

OF_ASSUME_NONNULL_END

#include <errno.h>

#import "OFINIFile.h"
#import "OFArray.h"
#import "OFINICategory+Private.h"
#import "OFINICategory.h"
#import "OFStream.h"
#import "OFString.h"
#import "OFURI.h"
#import "OFURIHandler.h"

#import "OFInvalidFormatException.h"
#import "OFOpenItemFailedException.h"

OF_DIRECT_MEMBERS
@interface OFINIFile ()
- (void)of_parseURI: (OFURI *)URI encoding: (OFStringEncoding)encoding;
@end

static bool
isWhitespaceLine(OFString *line)
{
	const char *cString = line.UTF8String;
	size_t length = line.UTF8StringLength;

	for (size_t i = 0; i < length; i++)
		if (!OFASCIIIsSpace(cString[i]))
			return false;

	return true;
}

@implementation OFINIFile
@synthesize categories = _categories;

+ (instancetype)fileWithURI: (OFURI *)URI
{
	return [[[self alloc] initWithURI: URI] autorelease];
}

+ (instancetype)fileWithURI: (OFURI *)URI encoding: (OFStringEncoding)encoding
{
	return [[[self alloc] initWithURI: URI encoding: encoding] autorelease];
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithURI: (OFURI *)URI
{
	return [self initWithURI: URI encoding: OFStringEncodingAutodetect];
}

- (instancetype)initWithURI: (OFURI *)URI encoding: (OFStringEncoding)encoding
{
	self = [super init];

	@try {
		_categories = [[OFMutableArray alloc] init];

		[self of_parseURI: URI encoding: encoding];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

	[_categories addObject: category];

	objc_autoreleasePoolPop(pool);

	return category;
}

- (void)of_parseURI: (OFURI *)URI encoding: (OFStringEncoding)encoding
{
	void *pool = objc_autoreleasePoolPush();
	OFStream *file;
	OFINICategory *category = nil;
	OFString *line;

	if (encoding == OFStringEncodingAutodetect)
		encoding = OFStringEncodingUTF8;

	@try {
		file = [OFURIHandler openItemAtURI: URI mode: @"r"];
	} @catch (OFOpenItemFailedException *e) {
		/* Handle missing file like an empty file */
		if (e.errNo == ENOENT)
			return;

		@throw e;
	}

			[category of_parseLine: line];
		}
	}

	objc_autoreleasePoolPop(pool);
}

- (void)writeToURI: (OFURI *)URI
{
	[self writeToURI: URI encoding: OFStringEncodingUTF8];
}

- (void)writeToURI: (OFURI *)URI encoding: (OFStringEncoding)encoding
{
	void *pool = objc_autoreleasePoolPush();
	OFStream *file = [OFURIHandler openItemAtURI: URI mode: @"w"];
	bool first = true;

	for (OFINICategory *category in _categories)
		if ([category of_writeToStream: file
				      encoding: encoding
					 first: first])
			first = false;

 */

#import "OFSettings.h"

OF_ASSUME_NONNULL_BEGIN

@class OFINIFile;
@class OFString;
@class OFURI;

@interface OFINIFileSettings: OFSettings
{
	OFURI *_fileURI;
	OFINIFile *_INIFile;
}
@end

OF_ASSUME_NONNULL_END

 */

#include "config.h"

#import "OFINIFileSettings.h"
#import "OFArray.h"
#import "OFINIFile.h"
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFURI.h"

@implementation OFINIFileSettings
- (instancetype)initWithApplicationName: (OFString *)applicationName
{
	self = [super initWithApplicationName: applicationName];

	@try {
		void *pool = objc_autoreleasePoolPush();
		OFString *fileName;

		fileName = [applicationName stringByAppendingString: @".ini"];
		_fileURI = [[[OFSystemInfo userConfigURI]
		    URIByAppendingPathComponent: fileName] copy];
		_INIFile = [[OFINIFile alloc] initWithURI: _fileURI];

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_fileURI release];
	[_INIFile release];

	[super dealloc];
}

- (void)of_getCategory: (OFString **)category
		andKey: (OFString **)key

	[[_INIFile categoryForName: category] removeValueForKey: key];

	objc_autoreleasePoolPop(pool);
}

- (void)save
{
	[_INIFile writeToURI: _fileURI];
}
@end

 *
 * 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.
 */

#import "OFURI.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFURI ()
- (instancetype)of_init OF_METHOD_FAMILY(init);
@end

OF_ASSUME_NONNULL_END

@class OFArray OF_GENERIC(ObjectType);
@class OFDictionary OF_GENERIC(KeyType, ObjectType);
@class OFNumber;
@class OFPair OF_GENERIC(FirstType, SecondType);
@class OFString;

/**
 * @class OFURI OFURI.h ObjFW/OFURI.h
 *
 * @brief A class for parsing URIs as per RFC 3986 and accessing parts of it.
 */
@interface OFURI: OFObject <OFCopying, OFMutableCopying, OFSerialization>
{
	OFString *_scheme;
	OFString *_Nullable _percentEncodedHost;
	OFNumber *_Nullable _port;
	OFString *_Nullable _percentEncodedUser;
	OFString *_Nullable _percentEncodedPassword;
	OFString *_percentEncodedPath;
	OFString *_Nullable _percentEncodedQuery;
	OFString *_Nullable _percentEncodedFragment;
	OF_RESERVE_IVARS(OFURI, 4)
}

/**
 * @brief The scheme part of the URI.
 */
@property (readonly, copy, nonatomic) OFString *scheme;

/**
 * @brief The host part of the URI.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *host;

/**
 * @brief The host part of the URI in percent-encoded form.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic)
    OFString *percentEncodedHost;

/**
 * @brief The port part of the URI.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFNumber *port;

/**
 * @brief The user part of the URI.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *user;

/**
 * @brief The user part of the URI in percent-encoded form.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic)
    OFString *percentEncodedUser;

/**
 * @brief The password part of the URI.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *password;

/**
 * @brief The password part of the URI in percent-encoded form.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic)
    OFString *percentEncodedPassword;

/**
 * @brief The path part of the URI.
 */
@property (readonly, copy, nonatomic) OFString *path;

/**
 * @brief The path part of the URI in percent-encoded form.
 */
@property (readonly, copy, nonatomic) OFString *percentEncodedPath;

/**
 * @brief The path of the URI split into components.
 *
 * The first component must always be `/` to designate the root.
 */
@property (readonly, copy, nonatomic)
    OFArray OF_GENERIC(OFString *) *pathComponents;

/**
 * @brief The last path component of the URI.
 *
 * Returns the empty string if the path is the root.
 */
@property (readonly, copy, nonatomic) OFString *lastPathComponent;

/**
 * @brief The query part of the URI.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *query;

/**
 * @brief The query part of the URI in percent-encoded form.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic)
    OFString *percentEncodedQuery;

/**
 * @brief The query part of the URI as an array.
 *
 * For example, a query like `key1=value1&key2=value2` would correspond to the
 * following array:
 *
 *     @[
 *         [OFPair pairWithFirstObject: @"key1" secondObject: @"value1"],
 *         [OFPair pairWithFirstObject: @"key2" secondObject: @"value2"],
 *     ]
 *
 * @throw OFInvalidFormatException The query is not in the correct format
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic)
    OFArray OF_GENERIC(OFPair OF_GENERIC(OFString *, OFString *) *) *queryItems;

/**
 * @brief The fragment part of the URI.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *fragment;

/**
 * @brief The fragment part of the URI in URI-encoded form.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic)
    OFString *percentEncodedFragment;

/**
 * @brief The URI as a string.
 */
@property (readonly, nonatomic) OFString *string;

/**
 * @brief The URI with relative subpaths resolved.
 */
@property (readonly, nonatomic) OFURI *URIByStandardizingPath;

#ifdef OF_HAVE_FILES
/**
 * @brief The local file system representation for a file URI.
 *
 * @note This only exists for URIs with the file scheme and throws an exception
 *	 otherwise.
 */
@property OF_NULLABLE_PROPERTY (readonly, nonatomic)
    OFString *fileSystemRepresentation;
#endif

/**
 * @brief Creates a new URI with the specified string.
 *
 * @param string A string describing a URI
 * @return A new, autoreleased OFURI
 * @throw OFInvalidFormatException The specified string is not a valid URI
 *				   string
 */
+ (instancetype)URIWithString: (OFString *)string;

/**
 * @brief Creates a new URI with the specified string relative to the
 *	  specified URI.
 *
 * @param string A string describing a relative or absolute URI
 * @param URI An URI to which the string is relative
 * @return A new, autoreleased OFURI
 * @throw OFInvalidFormatException The specified string is not a valid URI
 *				   string
 */
+ (instancetype)URIWithString: (OFString *)string relativeToURI: (OFURI *)URI;

#ifdef OF_HAVE_FILES
/**
 * @brief Creates a new URI with the specified local file path.
 *
 * If a directory exists at the specified path, a slash is appended if there is
 * no slash yet.
 *
 * @param path The local file path
 * @return A new, autoreleased OFURI
 * @throw OFInvalidFormatException The specified path is not a valid path
 */
+ (instancetype)fileURIWithPath: (OFString *)path;

/**
 * @brief Creates a new URI with the specified local file path.
 *
 * @param path The local file path
 * @param isDirectory Whether the path is a directory, in which case a slash is
 *		      appened if there is no slash yet
 * @return An initialized OFURI
 */
+ (instancetype)fileURIWithPath: (OFString *)path
		    isDirectory: (bool)isDirectory;
#endif

/**
 * @brief Initializes an already allocated OFURI with the specified string.
 *
 * @param string A string describing a URI
 * @return An initialized OFURI
 * @throw OFInvalidFormatException The specified string is not a valid URI
 *				   string
 */
- (instancetype)initWithString: (OFString *)string;

/**
 * @brief Initializes an already allocated OFURI with the specified string and
 *	  relative URI.
 *
 * @param string A string describing a relative or absolute URI
 * @param URI A URI to which the string is relative
 * @return An initialized OFURI
 * @throw OFInvalidFormatException The specified string is not a valid URI
 *				   string
 */
- (instancetype)initWithString: (OFString *)string relativeToURI: (OFURI *)URI;

#ifdef OF_HAVE_FILES
/**
 * @brief Initializes an already allocated OFURI with the specified local file
 *	  path.
 *
 * If a directory exists at the specified path, a slash is appended if there is
 * no slash yet.
 *
 * @param path The local file path
 * @return An initialized OFURI
 * @throw OFInvalidFormatException The specified path is not a valid path
 */
- (instancetype)initFileURIWithPath: (OFString *)path;

/**
 * @brief Initializes an already allocated OFURI with the specified local file
 *	  path.
 *
 * @param path The local file path
 * @param isDirectory Whether the path is a directory, in which case a slash is
 *		      appened if there is no slash yet
 * @return An initialized OFURI
 */
- (instancetype)initFileURIWithPath: (OFString *)path
			isDirectory: (bool)isDirectory;
#endif

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Returns a new URI with the specified path component appended.
 *
 * If the URI is a file URI, the file system is queried whether the appended
 * component is a directory.
 *
 * @param component The path component to append. If it starts with the slash,
 *		    the component is not appended, but replaces the path
 *		    instead.
 * @return A new URI with the specified path component appended
 */
- (OFURI *)URIByAppendingPathComponent: (OFString *)component;

/**
 * @brief Returns a new URI with the specified path component appended.
 *
 * @param component The path component to append. If it starts with the slash,
 *		    the component is not appended, but replaces the path
 *		    instead.
 * @param isDirectory Whether the appended component is a directory, meaning
 *		      that the URI path should have a trailing slash
 * @return A new URI with the specified path component appended
 */
- (OFURI *)URIByAppendingPathComponent: (OFString *)component
			   isDirectory: (bool)isDirectory;
@end

@interface OFCharacterSet (URICharacterSets)
#ifdef OF_HAVE_CLASS_PROPERTIES
@property (class, readonly, nonatomic)
    OFCharacterSet *URISchemeAllowedCharacterSet;
@property (class, readonly, nonatomic)
    OFCharacterSet *URIHostAllowedCharacterSet;
@property (class, readonly, nonatomic)
    OFCharacterSet *URIUserAllowedCharacterSet;
@property (class, readonly, nonatomic)
    OFCharacterSet *URIPasswordAllowedCharacterSet;
@property (class, readonly, nonatomic)
    OFCharacterSet *URIPathAllowedCharacterSet;
@property (class, readonly, nonatomic)
    OFCharacterSet *URIQueryAllowedCharacterSet;
@property (class, readonly, nonatomic)
    OFCharacterSet *URIQueryKeyValueAllowedCharacterSet;
@property (class, readonly, nonatomic)
    OFCharacterSet *URIFragmentAllowedCharacterSet;
#endif

/**
 * @brief Returns the characters allowed in the scheme part of a URI.
 *
 * @return The characters allowed in the scheme part of a URI.
 */
+ (OFCharacterSet *)URISchemeAllowedCharacterSet;

/**
 * @brief Returns the characters allowed in the host part of a URI.
 *
 * @return The characters allowed in the host part of a URI.
 */
+ (OFCharacterSet *)URIHostAllowedCharacterSet;

/**
 * @brief Returns the characters allowed in the user part of a URI.
 *
 * @return The characters allowed in the user part of a URI.
 */
+ (OFCharacterSet *)URIUserAllowedCharacterSet;

/**
 * @brief Returns the characters allowed in the password part of a URI.
 *
 * @return The characters allowed in the password part of a URI.
 */
+ (OFCharacterSet *)URIPasswordAllowedCharacterSet;

/**
 * @brief Returns the characters allowed in the path part of a URI.
 *
 * @return The characters allowed in the path part of a URI.
 */
+ (OFCharacterSet *)URIPathAllowedCharacterSet;

/**
 * @brief Returns the characters allowed in the query part of a URI.
 *
 * @return The characters allowed in the query part of a URI.
 */
+ (OFCharacterSet *)URIQueryAllowedCharacterSet;

/**
 * @brief Returns the characters allowed in a key/value in the query part of a
 *	  URI.
 *
 * @return The characters allowed in a key/value in the query part of a URI.
 */
+ (OFCharacterSet *)URIQueryKeyValueAllowedCharacterSet;

/**
 * @brief Returns the characters allowed in the fragment part of a URI.
 *
 * @return The characters allowed in the fragment part of a URI.
 */
+ (OFCharacterSet *)URIFragmentAllowedCharacterSet;
@end

#ifdef __cplusplus
extern "C" {
#endif
extern bool OFURIIsIPv6Host(OFString *host);
extern void OFURIVerifyIsEscaped(OFString *, OFCharacterSet *, bool);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#import "OFMutableURI.h"

 */

#include "config.h"

#include <stdlib.h>
#include <string.h>

#import "OFURI.h"
#import "OFArray.h"
#import "OFDictionary.h"
#ifdef OF_HAVE_FILES
# import "OFFileManager.h"
# import "OFFileURIHandler.h"
#endif
#import "OFNumber.h"
#import "OFOnce.h"
#import "OFPair.h"
#import "OFString.h"
#import "OFXMLElement.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfMemoryException.h"

@interface OFURIAllowedCharacterSetBase: OFCharacterSet
@end

@interface OFURIAllowedCharacterSet: OFURIAllowedCharacterSetBase
@end

@interface OFURISchemeAllowedCharacterSet: OFURIAllowedCharacterSetBase
@end

@interface OFURIPathAllowedCharacterSet: OFURIAllowedCharacterSetBase
@end

@interface OFURIQueryAllowedCharacterSet: OFURIAllowedCharacterSetBase
@end

@interface OFURIQueryKeyValueAllowedCharacterSet: OFURIAllowedCharacterSetBase
@end

@interface OFURIFragmentAllowedCharacterSet: OFURIAllowedCharacterSetBase
@end

OF_DIRECT_MEMBERS
@interface OFInvertedCharacterSetWithoutPercent: OFCharacterSet
{
	OFCharacterSet *_characterSet;
	bool (*_characterIsMember)(id, SEL, OFUnichar);
}

- (instancetype)initWithCharacterSet: (OFCharacterSet *)characterSet;
@end

static OFCharacterSet *URIAllowedCharacterSet = nil;
static OFCharacterSet *URISchemeAllowedCharacterSet = nil;
static OFCharacterSet *URIPathAllowedCharacterSet = nil;
static OFCharacterSet *URIQueryAllowedCharacterSet = nil;
static OFCharacterSet *URIQueryKeyValueAllowedCharacterSet = nil;
static OFCharacterSet *URIFragmentAllowedCharacterSet = nil;

static OFOnceControl URIAllowedCharacterSetOnce = OFOnceControlInitValue;

static void
initURIAllowedCharacterSet(void)
{
	URIAllowedCharacterSet = [[OFURIAllowedCharacterSet alloc] init];
}

static void
initURISchemeAllowedCharacterSet(void)
{
	URISchemeAllowedCharacterSet =
	    [[OFURISchemeAllowedCharacterSet alloc] init];
}

static void
initURIPathAllowedCharacterSet(void)
{
	URIPathAllowedCharacterSet =
	    [[OFURIPathAllowedCharacterSet alloc] init];
}

static void
initURIQueryAllowedCharacterSet(void)
{
	URIQueryAllowedCharacterSet =
	    [[OFURIQueryAllowedCharacterSet alloc] init];
}

static void
initURIQueryKeyValueAllowedCharacterSet(void)
{
	URIQueryKeyValueAllowedCharacterSet =
	    [[OFURIQueryKeyValueAllowedCharacterSet alloc] init];
}

static void
initURIFragmentAllowedCharacterSet(void)
{
	URIFragmentAllowedCharacterSet =
	    [[OFURIFragmentAllowedCharacterSet alloc] init];
}

bool
OFURIIsIPv6Host(OFString *host)
{
	const char *UTF8String = host.UTF8String;
	bool hasColon = false;

	while (*UTF8String != '\0') {
		if (!OFASCIIIsDigit(*UTF8String) && *UTF8String != ':' &&
		    (*UTF8String < 'a' || *UTF8String > 'f') &&

		return true;
	if (character >= 0x100000 && character <= 0x10FFFD)
		return true;

	return false;
}

@implementation OFURIAllowedCharacterSetBase
- (instancetype)autorelease
{
	return self;
}

- (instancetype)retain
{
	return self;
}

- (void)release
{
}

- (unsigned int)retainCount
{
	return OFMaxRetainCount;
}
@end

@implementation OFURIAllowedCharacterSet
- (bool)characterIsMember: (OFUnichar)character
{
	if (character < CHAR_MAX && OFASCIIIsAlnum(character))
		return true;

	if (character > 0x7F)
		return !isUnicodePrivate(character);

		return true;
	default:
		return false;
	}
}
@end

@implementation OFURISchemeAllowedCharacterSet
- (bool)characterIsMember: (OFUnichar)character
{
	if (character < CHAR_MAX && OFASCIIIsAlnum(character))
		return true;

	switch (character) {
	case '+':
	case '-':
	case '.':
		return true;
	default:
		return false;
	}
}
@end

@implementation OFURIPathAllowedCharacterSet
- (bool)characterIsMember: (OFUnichar)character
{
	if (character < CHAR_MAX && OFASCIIIsAlnum(character))
		return true;

	if (character > 0x7F)
		return !isUnicodePrivate(character);

		return true;
	default:
		return false;
	}
}
@end

@implementation OFURIQueryAllowedCharacterSet
- (bool)characterIsMember: (OFUnichar)character
{
	if (character < CHAR_MAX && OFASCIIIsAlnum(character))
		return true;

	if (character > 0x7F)
		return true;

		return true;
	default:
		return false;
	}
}
@end

@implementation OFURIQueryKeyValueAllowedCharacterSet
- (bool)characterIsMember: (OFUnichar)character
{
	if (character < CHAR_MAX && OFASCIIIsAlnum(character))
		return true;

	if (character > 0x7F)
		return true;

		return true;
	default:
		return false;
	}
}
@end

@implementation OFURIFragmentAllowedCharacterSet
- (bool)characterIsMember: (OFUnichar)character
{
	if (character < CHAR_MAX && OFASCIIIsAlnum(character))
		return true;

	if (character > 0x7F)
		return !isUnicodePrivate(character);

{
	return (character != '%' && !_characterIsMember(_characterSet,
	    @selector(characterIsMember:), character));
}
@end

void
OFURIVerifyIsEscaped(OFString *string, OFCharacterSet *characterSet,
    bool allowPercent)
{
	void *pool = objc_autoreleasePoolPush();

	if (allowPercent)
		characterSet = [[[OFInvertedCharacterSetWithoutPercent alloc]
		    initWithCharacterSet: characterSet] autorelease];
	else
		characterSet = characterSet.invertedSet;

	if ([string indexOfCharacterFromSet: characterSet] != OFNotFound)
		@throw [OFInvalidFormatException exception];

	objc_autoreleasePoolPop(pool);
}

@implementation OFCharacterSet (URICharacterSets)
+ (OFCharacterSet *)URISchemeAllowedCharacterSet
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, initURISchemeAllowedCharacterSet);

	return URISchemeAllowedCharacterSet;
}

+ (OFCharacterSet *)URIHostAllowedCharacterSet
{
	OFOnce(&URIAllowedCharacterSetOnce, initURIAllowedCharacterSet);

	return URIAllowedCharacterSet;
}

+ (OFCharacterSet *)URIUserAllowedCharacterSet
{
	OFOnce(&URIAllowedCharacterSetOnce, initURIAllowedCharacterSet);

	return URIAllowedCharacterSet;
}

+ (OFCharacterSet *)URIPasswordAllowedCharacterSet
{
	OFOnce(&URIAllowedCharacterSetOnce, initURIAllowedCharacterSet);

	return URIAllowedCharacterSet;
}

+ (OFCharacterSet *)URIPathAllowedCharacterSet
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, initURIPathAllowedCharacterSet);

	return URIPathAllowedCharacterSet;
}

+ (OFCharacterSet *)URIQueryAllowedCharacterSet
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, initURIQueryAllowedCharacterSet);

	return URIQueryAllowedCharacterSet;
}

+ (OFCharacterSet *)URIQueryKeyValueAllowedCharacterSet
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, initURIQueryKeyValueAllowedCharacterSet);

	return URIQueryKeyValueAllowedCharacterSet;
}

+ (OFCharacterSet *)URIFragmentAllowedCharacterSet
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, initURIFragmentAllowedCharacterSet);

	return URIFragmentAllowedCharacterSet;
}
@end

@implementation OFURI
+ (instancetype)URI
{
	return [[[self alloc] init] autorelease];
}

+ (instancetype)URIWithString: (OFString *)string
{
	return [[[self alloc] initWithString: string] autorelease];
}

+ (instancetype)URIWithString: (OFString *)string
		relativeToURI: (OFURI *)URI
{
	return [[[self alloc] initWithString: string
			       relativeToURI: URI] autorelease];
}

#ifdef OF_HAVE_FILES
+ (instancetype)fileURIWithPath: (OFString *)path
{
	return [[[self alloc] initFileURIWithPath: path] autorelease];
}

+ (instancetype)fileURIWithPath: (OFString *)path
		    isDirectory: (bool)isDirectory
{
	return [[[self alloc] initFileURIWithPath: path
				      isDirectory: isDirectory] autorelease];
}
#endif

static void
parseUserInfo(OFURI *self, const char *UTF8String, size_t length)
{
	const char *colon;

	if ((colon = memchr(UTF8String, ':', length)) != NULL) {
		self->_percentEncodedUser = [[OFString alloc]
		    initWithUTF8String: UTF8String
				length: colon - UTF8String];
		self->_percentEncodedPassword = [[OFString alloc]
		    initWithUTF8String: colon + 1
				length: length - (colon - UTF8String) - 1];

		OFURIVerifyIsEscaped(self->_percentEncodedPassword,
		    [OFCharacterSet URIPasswordAllowedCharacterSet], true);
	} else
		self->_percentEncodedUser = [[OFString alloc]
		    initWithUTF8String: UTF8String
				length: length];

	OFURIVerifyIsEscaped(self->_percentEncodedUser,
	    [OFCharacterSet URIUserAllowedCharacterSet], true);
}

static void
parseHostPort(OFURI *self, const char *UTF8String, size_t length)
{
	OFString *portString;

	if (*UTF8String == '[') {
		const char *end = memchr(UTF8String, ']', length);

		if (end == NULL)

			    initWithUTF8String: UTF8String
					length: length];

			UTF8String += length;
			length = 0;
		}

		OFURIVerifyIsEscaped(self->_percentEncodedHost,
		    [OFCharacterSet URIHostAllowedCharacterSet], true);
	}

	if (length == 0)
		return;

	if (length <= 1 || *UTF8String != ':')
		@throw [OFInvalidFormatException exception];

		@throw [OFInvalidFormatException exception];

	self->_port = [[OFNumber alloc] initWithUnsignedShort:
	    (unsigned short)portString.unsignedLongLongValue];
}

static size_t
parseAuthority(OFURI *self, const char *UTF8String, size_t length)
{
	size_t ret;
	const char *slash, *at;

	if ((slash = memchr(UTF8String, '/', length)) != NULL)
		length = slash - UTF8String;

	const char *fragment, *query;

	if ((fragment = memchr(UTF8String, '#', length)) != NULL) {
		*fragmentString = [OFString
		    stringWithUTF8String: fragment + 1
				  length: length - (fragment - UTF8String) - 1];

		OFURIVerifyIsEscaped(*fragmentString,
		    [OFCharacterSet URIQueryAllowedCharacterSet], true);

		length = fragment - UTF8String;
	}

	if ((query = memchr(UTF8String, '?', length)) != NULL) {
		*queryString = [OFString
		    stringWithUTF8String: query + 1
				  length: length - (query - UTF8String) - 1];

		OFURIVerifyIsEscaped(*queryString,
		    [OFCharacterSet URIFragmentAllowedCharacterSet], true);

		length = query - UTF8String;
	}

	*pathString = [OFString stringWithUTF8String: UTF8String
					      length: length];

	OFURIVerifyIsEscaped(*pathString,
	    [OFCharacterSet URIPathAllowedCharacterSet], true);
}

- (instancetype)initWithString: (OFString *)string
{
	self = [super init];

	@try {

		    colon - UTF8String < 1 || !OFASCIIIsAlpha(UTF8String[0]))
			@throw [OFInvalidFormatException exception];

		_scheme = [[[OFString stringWithUTF8String: UTF8String
						    length: colon - UTF8String]
		    lowercaseString] copy];

		OFURIVerifyIsEscaped(_scheme,
		    [OFCharacterSet URISchemeAllowedCharacterSet], false);

		length -= colon - UTF8String + 1;
		UTF8String = colon + 1;

		if (length >= 2 && UTF8String[0] == '/' &&
		    UTF8String[1] == '/') {
			size_t authorityLength;

	else
		[components replaceObjectAtIndex: components.count - 1
				      withObject: path];

	return [components componentsJoinedByString: @"/"];
}

- (instancetype)initWithString: (OFString *)string relativeToURI: (OFURI *)URI
{
	bool absolute;

	@try {
		absolute = isAbsolute(string);
	} @catch (id e) {
		[self release];

	@try {
		void *pool = objc_autoreleasePoolPush();
		const char *UTF8String = string.UTF8String;
		size_t length = string.UTF8StringLength;
		bool hasAuthority = false;
		OFString *path, *query = nil, *fragment = nil;

		_scheme = [URI->_scheme copy];

		if (length >= 2 && UTF8String[0] == '/' &&
		    UTF8String[1] == '/') {
			size_t authorityLength;

			hasAuthority = true;

			UTF8String += 2;
			length -= 2;

			authorityLength = parseAuthority(self,
			    UTF8String, length);

			UTF8String += authorityLength;
			length -= authorityLength;

			if (length > 0)
				OFEnsure(UTF8String[0] == '/');
		} else {
			_percentEncodedHost = [URI->_percentEncodedHost copy];
			_port = [URI->_port copy];
			_percentEncodedUser = [URI->_percentEncodedUser copy];
			_percentEncodedPassword =
			    [URI->_percentEncodedPassword copy];
		}

		parsePathQueryFragment(UTF8String, length,
		    &path, &query, &fragment);
		_percentEncodedFragment = [fragment copy];

		if (hasAuthority) {
			_percentEncodedPath = [path copy];
			_percentEncodedQuery = [query copy];
		} else {
			if (path.length == 0) {
				_percentEncodedPath =
				    [URI->_percentEncodedPath copy];
				_percentEncodedQuery = (query != nil
				    ? [query copy]
				    : [URI->_percentEncodedQuery copy]);
			} else {
				if ([path hasPrefix: @"/"])
					_percentEncodedPath = [path copy];
				else
					_percentEncodedPath = [merge(
					    URI->_percentEncodedPath, path)
					    copy];

				_percentEncodedQuery = [query copy];
			}
		}

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

#ifdef OF_HAVE_FILES
- (instancetype)initFileURIWithPath: (OFString *)path
{
	bool isDirectory;

	@try {
		void *pool = objc_autoreleasePoolPush();
		isDirectory = [path of_isDirectoryPath];
		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	self = [self initFileURIWithPath: path isDirectory: isDirectory];

	return self;
}

- (instancetype)initFileURIWithPath: (OFString *)path
			isDirectory: (bool)isDirectory
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();
		OFString *percentEncodedHost = nil;

		if (!path.absolutePath) {
			OFString *currentDirectoryPath = [OFFileManager
			    defaultManager].currentDirectoryPath;

			path = [currentDirectoryPath
			    stringByAppendingPathComponent: path];
			path = path.stringByStandardizingPath;
		}

		path = [path of_pathToURIPathWithPercentEncodedHost:
		    &percentEncodedHost];
		_percentEncodedHost = [percentEncodedHost copy];

		if (isDirectory && ![path hasSuffix: @"/"])
			path = [path stringByAppendingString: @"/"];

		_scheme = @"file";
		_percentEncodedPath = [[path
		    stringByAddingPercentEncodingWithAllowedCharacters:
		    [OFCharacterSet URIPathAllowedCharacterSet]] copy];

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	[_percentEncodedFragment release];

	[super dealloc];
}

- (bool)isEqual: (id)object
{
	OFURI *URI;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFURI class]])
		return false;

	URI = object;

	if (![URI->_scheme isEqual: _scheme])
		return false;
	if (URI->_percentEncodedHost != _percentEncodedHost &&
	    ![URI->_percentEncodedHost isEqual: _percentEncodedHost])
		return false;
	if (URI->_port != _port && ![URI->_port isEqual: _port])
		return false;
	if (URI->_percentEncodedUser != _percentEncodedUser &&
	    ![URI->_percentEncodedUser isEqual: _percentEncodedUser])
		return false;
	if (URI->_percentEncodedPassword != _percentEncodedPassword &&
	    ![URI->_percentEncodedPassword isEqual: _percentEncodedPassword])
		return false;
	if (![URI->_percentEncodedPath isEqual: _percentEncodedPath])
		return false;
	if (URI->_percentEncodedQuery != _percentEncodedQuery &&
	    ![URI->_percentEncodedQuery isEqual: _percentEncodedQuery])
		return false;
	if (URI->_percentEncodedFragment != _percentEncodedFragment &&
	    ![URI->_percentEncodedFragment isEqual: _percentEncodedFragment])
		return false;

	return true;
}

- (unsigned long)hash
{

- (OFString *)host
{
	if ([_percentEncodedHost hasPrefix: @"["] &&
	    [_percentEncodedHost hasSuffix: @"]"]) {
		OFString *host = [_percentEncodedHost substringWithRange:
		    OFMakeRange(1, _percentEncodedHost.length - 2)];

		if (!OFURIIsIPv6Host(host))
			@throw [OFInvalidArgumentException exception];

		return host;
	}

	return _percentEncodedHost.stringByRemovingPercentEncoding;
}

#endif
	OFMutableArray *ret;
	size_t count;

#ifdef OF_HAVE_FILES
	if (isFile) {
		OFString *path = [_percentEncodedPath
		    of_URIPathToPathWithPercentEncodedHost: nil];
		ret = [[path.pathComponents mutableCopy] autorelease];

		if (![ret.firstObject isEqual: @"/"])
			[ret insertObject: @"/" atIndex: 0];
	} else
#endif
		ret = [[[_percentEncodedPath componentsSeparatedByString: @"/"]
		    mutableCopy] autorelease];

	count = ret.count;

	if (count > 0 && [ret.firstObject length] == 0)
		[ret replaceObjectAtIndex: 0 withObject: @"/"];

	for (size_t i = 0; i < count; i++) {
		OFString *component = [ret objectAtIndex: i];

#ifdef OF_HAVE_FILES
		if (isFile)
			component =
			    [component of_pathComponentToURIPathComponent];
#endif

		component = component.stringByRemovingPercentEncoding;
		[ret replaceObjectAtIndex: i withObject: component];
	}

	[ret makeImmutable];

- (id)copy
{
	return [self retain];
}

- (id)mutableCopy
{
	OFURI *copy = [[OFMutableURI alloc] initWithScheme: _scheme];

	@try {
		copy->_percentEncodedHost = [_percentEncodedHost copy];
		copy->_port = [_port copy];
		copy->_percentEncodedUser = [_percentEncodedUser copy];
		copy->_percentEncodedPassword = [_percentEncodedPassword copy];
		copy->_percentEncodedPath = [_percentEncodedPath copy];

	if (![_scheme isEqual: @"file"])
		@throw [OFInvalidArgumentException exception];

	if (![_percentEncodedPath hasPrefix: @"/"])
		@throw [OFInvalidFormatException exception];

	path = [self.path
	    of_URIPathToPathWithPercentEncodedHost: _percentEncodedHost];

	[path retain];

	objc_autoreleasePoolPop(pool);

	return [path autorelease];
}
#endif

- (OFURI *)URIByAppendingPathComponent: (OFString *)component
{
	OFMutableURI *URI = [[self mutableCopy] autorelease];
	[URI appendPathComponent: component];
	[URI makeImmutable];
	return URI;
}

- (OFURI *)URIByAppendingPathComponent: (OFString *)component
			   isDirectory: (bool)isDirectory
{
	OFMutableURI *URI = [[self mutableCopy] autorelease];
	[URI appendPathComponent: component isDirectory: isDirectory];
	[URI makeImmutable];
	return URI;
}

- (OFURI *)URIByStandardizingPath
{
	OFMutableURI *URI = [[self mutableCopy] autorelease];
	[URI standardizePath];
	[URI makeImmutable];
	return URI;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<%@: %@>",
					   self.class, self.string];
}