ObjFW  Check-in [c52f38388c]

       OFData.m				\
       OFData+ASN1DERValue.m		\
       OFData+CryptoHashing.m		\
       OFData+MessagePackValue.m	\
       OFDate.m				\
       OFDictionary.m			\
       OFEnumerator.m			\
       OFFileManager.m			\
       OFGZIPStream.m			\
       OFHMAC.m				\
       OFInflate64Stream.m		\
       OFInflateStream.m		\
       OFIntrospection.m		\
       OFInvocation.m			\
       OFLHAArchive.m			\

       ${UNICODE_M}			\
       ${USE_SRCS_FILES}		\
       ${USE_SRCS_PLUGINS}		\
       ${USE_SRCS_SOCKETS}		\
       ${USE_SRCS_THREADS}		\
       ${USE_SRCS_WINDOWS}
SRCS_FILES = OFFile.m			\

	     OFINICategory.m		\
	     OFINIFile.m		\
	     OFSettings.m		\
	     OFString+PathAdditions.m
SRCS_PLUGINS = OFPlugin.m
SRCS_SOCKETS = OFDNSResolver.m			\
	       OFDNSResourceRecord.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 "OFObject.h"
#import "OFDictionary.h"

OF_ASSUME_NONNULL_BEGIN

/*! @file */

#ifdef OF_HAVE_FILES
# if defined(OF_HAVE_CHMOD) && !defined(OF_AMIGAOS)
#  define OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
# endif
# if defined(OF_HAVE_CHOWN) && !defined(OF_AMIGAOS)
#  define OF_FILE_MANAGER_SUPPORTS_OWNER
# endif
# if (defined(OF_HAVE_LINK) && !defined(OF_AMIGAOS)) || defined(OF_WINDOWS)
#  define OF_FILE_MANAGER_SUPPORTS_LINKS
# endif
# if (defined(OF_HAVE_SYMLINK) && !defined(OF_AMIGAOS)) || defined(OF_WINDOWS)
#  define OF_FILE_MANAGER_SUPPORTS_SYMLINKS
# endif
#endif

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

/*!
 * @brief A key for a file attribute in the file attributes dictionary.
 *
 * Possible keys for file URLs are:
 *
 *  * @ref of_file_attribute_key_size
 *  * @ref of_file_attribute_key_type
 *  * @ref of_file_attribute_key_posix_permissions
 *  * @ref of_file_attribute_key_posix_uid
 *  * @ref of_file_attribute_key_posix_gid
 *  * @ref of_file_attribute_key_owner
 *  * @ref of_file_attribute_key_group
 *  * @ref of_file_attribute_key_last_access_date
 *  * @ref of_file_attribute_key_modification_date
 *  * @ref of_file_attribute_key_status_change_date
 *  * @ref of_file_attribute_key_symbolic_link_destination
 *
 * Other URL schemes might not have all keys and might have keys not listed.
 */
typedef OFConstantString *of_file_attribute_key_t;

/*!
 * @brief The type of a file.
 *
 * Possibles values for file URLs are:
 *
 *  * @ref of_file_type_regular
 *  * @ref of_file_type_directory
 *  * @ref of_file_type_symbolic_link
 *  * @ref of_file_type_fifo
 *  * @ref of_file_type_character_special
 *  * @ref of_file_type_block_special
 *  * @ref of_file_type_socket
 *
 * Other URL schemes might not have all types and might have types not listed.
 */
typedef OFConstantString *of_file_type_t;

/*!
 * @brief A dictionary mapping keys of type @ref of_file_attribute_key_t
 *	  to their attribute values.
 */
typedef OFDictionary OF_GENERIC(of_file_attribute_key_t, id)
    *of_file_attributes_t;

/*!
 * @brief A mutable dictionary mapping keys of type
 *	  @ref of_file_attribute_key_t to their attribute values.
 */
typedef OFMutableDictionary OF_GENERIC(of_file_attribute_key_t, id)
    *of_mutable_file_attributes_t;

#ifdef __cplusplus
extern "C" {
#endif
/*!
 * @brief The size of the file as an @ref OFNumber.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileSize.
 */
extern const of_file_attribute_key_t of_file_attribute_key_size;

/*!
 * @brief The type of the file.
 *
 * The corresponding value is of type @ref of_file_type_t.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileType.
 */
extern const of_file_attribute_key_t of_file_attribute_key_type;

/*!
 * @brief The POSIX permissions of the file as an @ref OFNumber.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#filePOSIXPermissions.
 */
extern const of_file_attribute_key_t of_file_attribute_key_posix_permissions;

/*!
 * @brief The POSIX UID of the file as an @ref OFNumber.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#filePOSIXUID.
 */
extern const of_file_attribute_key_t of_file_attribute_key_posix_uid;

/*!
 * @brief The POSIX GID of the file as an @ref OFNumber.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#filePOSIXGID.
 */
extern const of_file_attribute_key_t of_file_attribute_key_posix_gid;

/*!
 * @brief The owner of the file as an @ref OFString.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileOwner.
 */
extern const of_file_attribute_key_t of_file_attribute_key_owner;

/*!
 * @brief The group of the file as an @ref OFString.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileGroup.
 */
extern const of_file_attribute_key_t of_file_attribute_key_group;

/*!
 * @brief The last access date of the file as an @ref OFDate.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileLastAccessDate.
 */
extern const of_file_attribute_key_t of_file_attribute_key_last_access_date;

/*!
 * @brief The last modification date of the file as an @ref OFDate.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileModificationDate.
 */
extern const of_file_attribute_key_t of_file_attribute_key_modification_date;

/*!
 * @brief The last status change date of the file as an @ref OFDate.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileStatusChangeDate.
 */
extern const of_file_attribute_key_t of_file_attribute_key_status_change_date;

/*!
 * @brief The destination of a symbolic link as an @ref OFString.
 *
 * For convenience, a category on @ref OFDictionary is provided to access this
 * via @ref OFDictionary#fileSymbolicLinkDestination.
 */
extern const of_file_attribute_key_t
    of_file_attribute_key_symbolic_link_destination;

/*!
 * @brief A regular file.
 */
extern const of_file_type_t of_file_type_regular;

/*!
 * @brief A directory.
 */
extern const of_file_type_t of_file_type_directory;

/*!
 * @brief A symbolic link.
 */
extern const of_file_type_t of_file_type_symbolic_link;

/*!
 * @brief A FIFO.
 */
extern const of_file_type_t of_file_type_fifo;

/*!
 * @brief A character special file.
 */
extern const of_file_type_t of_file_type_character_special;

/*!
 * @brief A block special file.
 */
extern const of_file_type_t of_file_type_block_special;

/*!
 * @brief A socket.
 */
extern const of_file_type_t of_file_type_socket;
#ifdef __cplusplus
}
#endif

/*!
 * @class OFFileManager OFFileManager.h ObjFW/OFFileManager.h
 *
 * @brief A class which provides management for files, e.g. reading contents of
 *	  directories, deleting files, renaming files, etc.
 */
@interface OFFileManager: OFObject
#ifdef OF_HAVE_CLASS_PROPERTIES
@property (class, readonly, nonatomic) OFFileManager *defaultManager;
#endif

#ifdef OF_HAVE_FILES
/*!
 * @brief The path of the current working directory.
 */
@property (readonly, nonatomic) OFString *currentDirectoryPath;

/*!
 * @brief The URL of the current working directory.
 */
@property (readonly, nonatomic) OFURL *currentDirectoryURL;
#endif

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

#ifdef OF_HAVE_FILES
/*!
 * @brief Returns the attributes for the item at the specified path.
 *
 * @param path The path to return the attributes for
 * @return A dictionary of attributes for the specified path, with the keys of
 *	   type @ref of_file_attribute_key_t
 */
- (of_file_attributes_t)attributesOfItemAtPath: (OFString *)path;
#endif

/*!
 * @brief Returns the attributes for the item at the specified URL.
 *
 * @param URL The URL to return the attributes for
 * @return A dictionary of attributes for the specified URL, with the keys of
 *	   type @ref of_file_attribute_key_t
 */
- (of_file_attributes_t)attributesOfItemAtURL: (OFURL *)URL;

#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
 */
- (void)setAttributes: (of_file_attributes_t)attributes
	 ofItemAtPath: (OFString *)path;
#endif

/*!
 * @brief Sets the attributes for the item at the specified URL.
 *
 * All attributes not part of the dictionary are left unchanged.
 *
 * @param attributes The attributes to set for the specified URL
 * @param URL The URL of the item to set the attributes for
 */
- (void)setAttributes: (of_file_attributes_t)attributes
	  ofItemAtURL: (OFURL *)URL;

#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 URL.
 *
 * @param URL The URL to check
 * @return A boolean whether there is a file at the specified URL
 */
- (bool)fileExistsAtURL: (OFURL *)URL;

#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 URL.
 *
 * @param URL The URL to check
 * @return A boolean whether there is a directory at the specified URL
 */
- (bool)directoryExistsAtURL: (OFURL *)URL;

#ifdef OF_HAVE_FILES
/*!
 * @brief Creates a directory at the specified path.
 *
 * @param path The path of the directory to create
 */
- (void)createDirectoryAtPath: (OFString *)path;

/*!
 * @brief Creates a directory at the specified path.
 *
 * @param path The path of the directory to create
 * @param createParents Whether to create the parents of the directory
 */
- (void)createDirectoryAtPath: (OFString *)path
		createParents: (bool)createParents;
#endif

/*!
 * @brief Creates a directory at the specified URL.
 *
 * @param URL The URL of the directory to create
 */
- (void)createDirectoryAtURL: (OFURL *)URL;

/*!
 * @brief Creates a directory at the specified URL.
 *
 * @param URL The URL of the directory to create
 * @param createParents Whether to create the parents of the directory
 */
- (void)createDirectoryAtURL: (OFURL *)URL
	       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
 */
- (OFArray OF_GENERIC(OFString *) *)contentsOfDirectoryAtPath: (OFString *)path;
#endif

/*!
 * @brief Returns an array with the items in the specified directory.
 *
 * @note `.` and `..` are not part of the returned array.
 *
 * @param URL The URL to the directory whose items should be returned
 * @return An array of OFString with the items in the specified directory
 */
- (OFArray OF_GENERIC(OFString *) *)contentsOfDirectoryAtURL: (OFURL *)URL;

#ifdef OF_HAVE_FILES
/*!
 * @brief Changes the current working directory.
 *
 * @param path The new directory to change to
 */
- (void)changeCurrentDirectoryPath: (OFString *)path;

 * directory.
 *
 * @param source The file, directory or symbolic link to copy
 * @param destination The destination path
 */
- (void)copyItemAtPath: (OFString *)source
		toPath: (OFString *)destination;
#endif

/*!
 * @brief Copies a file, directory or symbolic link (if supported by the OS).
 *
 * The destination URL 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 URL
 */
- (void)copyItemAtURL: (OFURL *)source
		toURL: (OFURL *)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.
 *
 * If the destination is on a different logical device, the source will be
 * copied to the destination using @ref copyItemAtPath:toPath: and the source
 * removed using @ref removeItemAtPath:.
 *
 * @param source The item to rename
 * @param destination The new name for the item
 */
- (void)moveItemAtPath: (OFString *)source
		toPath: (OFString *)destination;
#endif

/*!
 * @brief Moves an item.
 *
 * The destination URL 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 copyItemAtURL:toURL: and the source removed using @ref removeItemAtURL:.
 *
 * @param source The item to rename
 * @param destination The new name for the item
 */
- (void)moveItemAtURL: (OFURL *)source
		toURL: (OFURL *)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
 */
- (void)removeItemAtPath: (OFString *)path;
#endif

/*!
 * @brief Removes the item at the specified URL.
 *
 * If the item at the specified URL is a directory, it is removed recursively.
 *
 * @param URL The URL to the item which should be removed

 *
 * @param URL The URL to the item which should symbolically link to the target
 * @param target The target of the symbolic link
 */
- (void)createSymbolicLinkAtURL: (OFURL *)URL
	    withDestinationPath: (OFString *)target;
@end

@interface OFDictionary (FileAttributes)
/*!
 * The @ref of_file_attribute_key_size key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) uintmax_t fileSize;

/*!
 * The @ref of_file_attribute_key_type key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) of_file_type_t fileType;

/*!
 * The @ref of_file_attribute_key_posix_permissions key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) uint16_t filePOSIXPermissions;

/*!
 * The @ref of_file_attribute_key_posix_uid key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) uint32_t filePOSIXUID;

/*!
 * The @ref of_file_attribute_key_posix_gid key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) uint32_t filePOSIXGID;

/*!
 * The @ref of_file_attribute_key_owner key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) OFString *fileOwner;

/*!
 * The @ref of_file_attribute_key_group key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) OFString *fileGroup;

/*!
 * The @ref of_file_attribute_key_last_access_date key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) OFDate *fileLastAccessDate;

/*!
 * The @ref of_file_attribute_key_modification_date key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) OFDate *fileModificationDate;

/*!
 * The @ref of_file_attribute_key_status_change_date key from the dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) OFDate *fileStatusChangeDate;

/*!
 * The @ref of_file_attribute_key_symbolic_link_destination key from the
 * dictionary.
 *
 * Raises an @ref OFUndefinedKeyException if the key is missing.
 */
@property (readonly, nonatomic) OFString *fileSymbolicLinkDestination;
@end

OF_ASSUME_NONNULL_END

#ifdef OF_PSP
# include <sys/syslimits.h>
#endif

#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 "OFURL.h"
#import "OFURLHandler.h"

#import "OFChangeCurrentDirectoryPathFailedException.h"
#import "OFCopyItemFailedException.h"
#import "OFCreateDirectoryFailedException.h"
#import "OFGetCurrentDirectoryPathFailedException.h"
#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFMoveItemFailedException.h"
#import "OFNotImplementedException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"
#import "OFRemoveItemFailedException.h"
#import "OFRetrieveItemAttributesFailedException.h"
#import "OFUndefinedKeyException.h"
#import "OFUnsupportedProtocolException.h"

#ifdef OF_WINDOWS
# include <windows.h>
# include <direct.h>
# include <ntdef.h>
#endif

# include <proto/dos.h>
# include <proto/locale.h>
#endif

@interface OFFileManager_default: OFFileManager
@end

const of_file_attribute_key_t of_file_attribute_key_size =
    @"of_file_attribute_key_size";
const of_file_attribute_key_t of_file_attribute_key_type =
    @"of_file_attribute_key_type";
const of_file_attribute_key_t of_file_attribute_key_posix_permissions =
    @"of_file_attribute_key_posix_permissions";
const of_file_attribute_key_t of_file_attribute_key_posix_uid =
    @"of_file_attribute_key_posix_uid";
const of_file_attribute_key_t of_file_attribute_key_posix_gid =
    @"of_file_attribute_key_posix_gid";
const of_file_attribute_key_t of_file_attribute_key_owner =
    @"of_file_attribute_key_owner";
const of_file_attribute_key_t of_file_attribute_key_group =
    @"of_file_attribute_key_group";
const of_file_attribute_key_t of_file_attribute_key_last_access_date =
    @"of_file_attribute_key_last_access_date";
const of_file_attribute_key_t of_file_attribute_key_modification_date =
    @"of_file_attribute_key_modification_date";
const of_file_attribute_key_t of_file_attribute_key_status_change_date =
    @"of_file_attribute_key_status_change_date";
const of_file_attribute_key_t of_file_attribute_key_symbolic_link_destination =
    @"of_file_attribute_key_symbolic_link_destination";

const of_file_type_t of_file_type_regular = @"of_file_type_regular";
const of_file_type_t of_file_type_directory = @"of_file_type_directory";
const of_file_type_t of_file_type_symbolic_link = @"of_file_type_symbolic_link";
const of_file_type_t of_file_type_fifo = @"of_file_type_fifo";
const of_file_type_t of_file_type_character_special =
    @"of_file_type_character_special";
const of_file_type_t of_file_type_block_special = @"of_file_type_block_special";
const of_file_type_t of_file_type_socket = @"of_file_type_socket";

#ifdef OF_AMIGAOS4
extern struct ExecIFace *IExec;
static struct Library *DOSBase = NULL;
static struct DOSIFace *IDOS = NULL;
#endif

static OFFileManager *defaultManager;

		DropInterface(IDOS);

	if (DOSBase != NULL)
		CloseLibrary(DOSBase);
# endif
}
#endif

static id
attributeForKeyOrException(of_file_attributes_t attributes,
    of_file_attribute_key_t key)
{
	id object = [attributes objectForKey: key];

	if (object == nil)
		@throw [OFUndefinedKeyException exceptionWithObject: attributes
								key: key];

	return object;
}

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

#ifdef OF_AMIGAOS4
	if ((DOSBase = OpenLibrary("dos.library", 36)) == NULL)
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];

	if ((IDOS = (struct DOSIFace *)
	    GetInterface(DOSBase, "main", 1, NULL)) == NULL)
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
#endif

#ifdef OF_HAVE_FILES
	/*
	 * Make sure OFFile is initialized.
	 * On some systems, this is needed to initialize the file system driver.
	 */
	[OFFile class];
#endif

	defaultManager = [[OFFileManager_default alloc] init];
}

+ (OFFileManager *)defaultManager
{
	return defaultManager;
}

#ifdef OF_HAVE_FILES
- (OFString *)currentDirectoryPath
{
# if defined(OF_WINDOWS)
	OFString *ret;
	wchar_t *buffer = _wgetcwd(NULL, 0);

	@try {
		ret = [OFString stringWithUTF16String: buffer];
	} @finally {
		free(buffer);
	}

	return ret;
# elif defined(OF_AMIGAOS)
	char buffer[512];

	if (!NameFromLock(((struct Process *)FindTask(NULL))->pr_CurrentDir,
	    buffer, 512)) {
		if (IoErr() == ERROR_LINE_TOO_LONG)
			@throw [OFOutOfRangeException exception];

		return nil;
	}

	return [OFString stringWithCString: buffer
				  encoding: [OFLocale encoding]];
# else
	char buffer[PATH_MAX];

	if ((getcwd(buffer, PATH_MAX)) == NULL)
		@throw [OFGetCurrentDirectoryPathFailedException
		    exceptionWithErrNo: errno];

#  ifdef OF_DJGPP
	/*
	 * For some reason, getcwd() returns forward slashes on DJGPP, even
	 * though the native format is to use backwards slashes.
	 */
	for (char *tmp = buffer; *tmp != '\0'; tmp++)
		if (*tmp == '/')
			*tmp = '\\';
#  endif

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

- (OFURL *)currentDirectoryURL
{
	void *pool = objc_autoreleasePoolPush();
	OFURL *ret;

	ret = [OFURL fileURLWithPath: self.currentDirectoryPath];

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

- (of_file_attributes_t)attributesOfItemAtURL: (OFURL *)URL
{
	OFURLHandler *URLHandler;

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

	if ((URLHandler = [OFURLHandler handlerForURL: URL]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURL: URL];

	return [URLHandler attributesOfItemAtURL: URL];
}

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

	ret = [self attributesOfItemAtURL: [OFURL fileURLWithPath: path]];

	[ret retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}
#endif

- (void)setAttributes: (of_file_attributes_t)attributes
	  ofItemAtURL: (OFURL *)URL
{
	OFURLHandler *URLHandler;

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

	if ((URLHandler = [OFURLHandler handlerForURL: URL]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURL: URL];

	[URLHandler setAttributes: attributes
		      ofItemAtURL: URL];
}

#ifdef OF_HAVE_FILES
- (void)setAttributes: (of_file_attributes_t)attributes
	 ofItemAtPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();

	[self setAttributes: attributes
		ofItemAtURL: [OFURL fileURLWithPath: path]];

	objc_autoreleasePoolPop(pool);
}
#endif

- (bool)fileExistsAtURL: (OFURL *)URL
{
	OFURLHandler *URLHandler;

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

	if ((URLHandler = [OFURLHandler handlerForURL: URL]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURL: URL];

	return [URLHandler fileExistsAtURL: URL];
}

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

	ret = [self fileExistsAtURL: [OFURL fileURLWithPath: path]];

	objc_autoreleasePoolPop(pool);

	return ret;
}
#endif

- (bool)directoryExistsAtURL: (OFURL *)URL
{
	OFURLHandler *URLHandler;

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

	if ((URLHandler = [OFURLHandler handlerForURL: URL]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURL: URL];

	return [URLHandler directoryExistsAtURL: URL];
}

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

	ret = [self directoryExistsAtURL: [OFURL fileURLWithPath: path]];

	objc_autoreleasePoolPop(pool);

	return ret;
}
#endif

- (void)createDirectoryAtURL: (OFURL *)URL
{
	OFURLHandler *URLHandler;

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

		    ![self directoryExistsAtURL: URL])
			[self createDirectoryAtURL: URL];
	}

	objc_autoreleasePoolPop(pool);
}

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

	[self createDirectoryAtURL: [OFURL fileURLWithPath: path]];

	objc_autoreleasePoolPop(pool);
}

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

	[self createDirectoryAtURL: [OFURL fileURLWithPath: path]
		     createParents: createParents];

	objc_autoreleasePoolPop(pool);
}
#endif

- (OFArray OF_GENERIC(OFString *) *)contentsOfDirectoryAtURL: (OFURL *)URL
{
	OFURLHandler *URLHandler;

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

	if ((URLHandler = [OFURLHandler handlerForURL: URL]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURL: URL];

	return [URLHandler contentsOfDirectoryAtURL: URL];
}

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

	ret = [self contentsOfDirectoryAtURL: [OFURL fileURLWithPath: path]];

	[ret retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}

- (void)changeCurrentDirectoryPath: (OFString *)path
{
	if (path == nil)
		@throw [OFInvalidArgumentException exception];

# if defined(OF_WINDOWS)
	if (_wchdir(path.UTF16String) != 0)
		@throw [OFChangeCurrentDirectoryPathFailedException
		    exceptionWithPath: path
				errNo: errno];
# elif defined(OF_AMIGAOS)
	BPTR lock, oldLock;

	if ((lock = Lock([path cStringWithEncoding: [OFLocale encoding]],
	    SHARED_LOCK)) == 0) {
		int errNo;

		switch (IoErr()) {

	if (!dirChanged)
		originalDirLock = oldLock;
	else
		UnLock(oldLock);

	dirChanged = true;
# else
	if (chdir([path cStringWithEncoding: [OFLocale encoding]]) != 0)
		@throw [OFChangeCurrentDirectoryPathFailedException
		    exceptionWithPath: path
				errNo: errno];
# endif
}

- (void)changeCurrentDirectoryURL: (OFURL *)URL
{
	void *pool = objc_autoreleasePoolPush();

	[self changeCurrentDirectoryPath: URL.fileSystemRepresentation];

	void *pool = objc_autoreleasePoolPush();

	[self copyItemAtURL: [OFURL fileURLWithPath: source]
		      toURL: [OFURL fileURLWithPath: destination]];

	objc_autoreleasePoolPop(pool);
}
#endif

- (void)copyItemAtURL: (OFURL *)source
		toURL: (OFURL *)destination
{
	void *pool;
	OFURLHandler *URLHandler;
	of_file_attributes_t attributes;

	if ([type isEqual: of_file_type_directory]) {
		OFArray *contents;

		@try {
			[self createDirectoryAtURL: destination];

			@try {
				of_file_attribute_key_t key =
				    of_file_attribute_key_posix_permissions;
				OFNumber *permissions =
				    [attributes objectForKey: key];
				of_file_attributes_t destinationAttributes;

				if (permissions != nil) {
					destinationAttributes = [OFDictionary
					    dictionaryWithObject: permissions
							  forKey: key];
					[self
					    setAttributes: destinationAttributes
					      ofItemAtURL: destination];

				}
			} @catch (OFNotImplementedException *e) {
			}

			contents = [self contentsOfDirectoryAtURL: 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

				length = [sourceStream
				    readIntoBuffer: buffer
					    length: pageSize];
				[destinationStream writeBuffer: buffer
							length: length];
			}

			@try {
				of_file_attribute_key_t key =
				    of_file_attribute_key_posix_permissions;
				OFNumber *permissions = [attributes
				    objectForKey: key];
				of_file_attributes_t destinationAttributes;

				if (permissions != nil) {
					destinationAttributes = [OFDictionary
					    dictionaryWithObject: permissions
							  forKey: key];
					[self
					    setAttributes: destinationAttributes
					      ofItemAtURL: 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
				    exceptionWithSourceURL: source
					    destinationURL: destination
						     errNo: [e errNo]];

			@throw e;
		} @finally {
			[sourceStream close];
			[destinationStream close];
			free(buffer);
		}

	} else if ([type isEqual: of_file_type_symbolic_link]) {
		@try {
			OFString *linkDestination =
			    attributes.fileSymbolicLinkDestination;

			[self createSymbolicLinkAtURL: destination
				  withDestinationPath: linkDestination];

				@throw [OFCopyItemFailedException
				    exceptionWithSourceURL: source
					    destinationURL: destination
						     errNo: [e errNo]];

			@throw e;
		}

	} else
		@throw [OFCopyItemFailedException
		    exceptionWithSourceURL: source
			    destinationURL: destination
				     errNo: EINVAL];

	objc_autoreleasePoolPop(pool);
}

#ifdef OF_HAVE_FILES
- (void)moveItemAtPath: (OFString *)source
		toPath: (OFString *)destination
{
	void *pool = objc_autoreleasePoolPush();

	[self moveItemAtURL: [OFURL fileURLWithPath: source]
		      toURL: [OFURL fileURLWithPath: destination]];

	objc_autoreleasePoolPop(pool);
}
#endif

- (void)moveItemAtURL: (OFURL *)source
		toURL: (OFURL *)destination
{
	void *pool;
	OFURLHandler *URLHandler;

	if ((URLHandler = [OFURLHandler handlerForURL: URL]) == nil)
		@throw [OFUnsupportedProtocolException exceptionWithURL: URL];

	[URLHandler removeItemAtURL: URL];
}

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

	[self removeItemAtURL: [OFURL fileURLWithPath: path]];

	objc_autoreleasePoolPop(pool);
}
#endif

- (void)linkItemAtURL: (OFURL *)source
		toURL: (OFURL *)destination
{
	void *pool = objc_autoreleasePoolPush();
	OFURLHandler *URLHandler;

}

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

@implementation OFDictionary (FileAttributes)
- (uintmax_t)fileSize
{
	return [attributeForKeyOrException(self, of_file_attribute_key_size)
	    uIntMaxValue];
}

- (of_file_type_t)fileType
{
	return attributeForKeyOrException(self, of_file_attribute_key_type);
}

- (uint16_t)filePOSIXPermissions
{
	return [attributeForKeyOrException(self,
	    of_file_attribute_key_posix_permissions) uInt16Value];
}

- (uint32_t)filePOSIXUID
{
	return [attributeForKeyOrException(self,
	    of_file_attribute_key_posix_uid) uInt32Value];
}

- (uint32_t)filePOSIXGID
{
	return [attributeForKeyOrException(self,
	    of_file_attribute_key_posix_gid) uInt32Value];
}

- (OFString *)fileOwner
{
	return attributeForKeyOrException(self, of_file_attribute_key_owner);
}

- (OFString *)fileGroup
{
	return attributeForKeyOrException(self, of_file_attribute_key_group);
}

- (OFDate *)fileLastAccessDate
{
	return attributeForKeyOrException(self,
	    of_file_attribute_key_last_access_date);
}

- (OFDate *)fileModificationDate
{
	return attributeForKeyOrException(self,
	    of_file_attribute_key_modification_date);
}

- (OFDate *)fileStatusChangeDate
{
	return attributeForKeyOrException(self,
	    of_file_attribute_key_status_change_date);
}

- (OFString *)fileSymbolicLinkDestination
{
	return attributeForKeyOrException(self,
	    of_file_attribute_key_symbolic_link_destination);
}
@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 "OFFileManager.h"
#import "OFObject.h"
#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN



@class OFArray OF_GENERIC(ObjectType);
@class OFDate;
@class OFStream;
@class OFURL;

























































































































































































/*!
 * @class OFURLHandler OFURLHandler.h ObjFW/OFURLHandler.h
 *
 * @brief A handler for a URL scheme.
 */
@interface OFURLHandler: OFObject
{

 *	   was not possible. Note that errors while performing a move are
 *	   reported via exceptions and not by returning false!
 */
- (bool)moveItemAtURL: (OFURL *)source
		toURL: (OFURL *)destination;
@end

















































































OF_ASSUME_NONNULL_END

 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFURLHandler.h"
#import "OFDictionary.h"
#import "OFNumber.h"
#import "OFURL.h"

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

#ifdef OF_HAVE_FILES
# import "OFURLHandler_file.h"
#endif
#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_THREADS)
# import "OFURLHandler_HTTP.h"
#endif



































static OFMutableDictionary OF_GENERIC(OFString *, OFURLHandler *) *handlers;
#ifdef OF_HAVE_THREADS
static OFMutex *mutex;
#endif














@implementation OFURLHandler
@synthesize scheme = _scheme;

+ (void)initialize
{
	if (self != [OFURLHandler class])
		return;

}

- (bool)moveItemAtURL: (OFURL *)source
		toURL: (OFURL *)destination
{
	return false;
}
@end

		else if ([key isEqual: of_file_attribute_key_group])
			[self of_setOwner: nil
				 andGroup: object
			      ofItemAtURL: URL
			     attributeKey: key
			       attributes: attributes];
		else
			@throw [OFNotImplementedException
			    exceptionWithSelector: _cmd
					   object: self];
	}

	objc_autoreleasePoolPop(pool);
}

- (bool)fileExistsAtURL: (OFURL *)URL
{

#import "OFGZIPStream.h"
#import "OFLHAArchive.h"
#import "OFLHAArchiveEntry.h"
#import "OFTarArchive.h"
#import "OFTarArchiveEntry.h"
#import "OFZIPArchive.h"
#import "OFZIPArchiveEntry.h"
#import "OFFileManager.h"
#ifdef OF_HAVE_FILES
# import "OFFile.h"

# import "OFINIFile.h"
# import "OFSettings.h"
#endif
#ifdef OF_HAVE_SOCKETS
# import "OFStreamSocket.h"
# import "OFTCPSocket.h"
# import "OFUDPSocket.h"