/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <errno.h>
#include <math.h>
#ifdef HAVE_DIRENT_H
# include <dirent.h>
#endif
#include "unistd_wrapper.h"
#import "platform.h"
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#include <sys/time.h>
#ifdef OF_WINDOWS
# include <utime.h>
#endif
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
#ifdef HAVE_GRP_H
# include <grp.h>
#endif
#import "OFFileURLHandler.h"
#import "OFArray.h"
#import "OFDate.h"
#import "OFFile.h"
#import "OFFileManager.h"
#import "OFLocale.h"
#import "OFNumber.h"
#import "OFSystemInfo.h"
#import "OFURL.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif
#import "OFCreateDirectoryFailedException.h"
#import "OFCreateSymbolicLinkFailedException.h"
#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFLinkFailedException.h"
#import "OFMoveItemFailedException.h"
#import "OFNotImplementedException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfRangeException.h"
#import "OFReadFailedException.h"
#import "OFRemoveItemFailedException.h"
#import "OFRetrieveItemAttributesFailedException.h"
#import "OFSetItemAttributesFailedException.h"
#ifdef OF_WINDOWS
# include <windows.h>
# include <direct.h>
# include <ntdef.h>
# include <wchar.h>
#endif
#ifdef OF_AMIGAOS
# include <proto/exec.h>
# include <proto/dos.h>
# include <proto/locale.h>
# ifdef OF_AMIGAOS4
# define DeleteFile(path) Delete(path)
# endif
#endif
#if defined(OF_WINDOWS) || (defined(OF_AMIGAOS) && !defined(OF_MORPHOS))
typedef struct {
of_offset_t st_size;
unsigned int st_mode;
of_time_interval_t st_atime, st_mtime, st_ctime;
# ifdef OF_WINDOWS
# define HAVE_STRUCT_STAT_ST_BIRTHTIME
of_time_interval_t st_birthtime;
DWORD fileAttributes;
# endif
} of_stat_t;
#elif defined(HAVE_STAT64)
typedef struct stat64 of_stat_t;
#else
typedef struct stat of_stat_t;
#endif
#ifdef OF_WINDOWS
# define S_IFLNK 0x10000
# define S_ISLNK(mode) (mode & S_IFLNK)
#endif
#if defined(OF_FILE_MANAGER_SUPPORTS_OWNER) && defined(OF_HAVE_THREADS)
static OFMutex *passwdMutex;
#endif
#if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS) && !defined(OF_WINDOWS)
static OFMutex *readdirMutex;
#endif
#ifdef OF_WINDOWS
static int (*func__wutime64)(const wchar_t *, struct __utimbuf64 *);
static WINAPI BOOLEAN (*func_CreateSymbolicLinkW)(LPCWSTR, LPCWSTR, DWORD);
static WINAPI BOOLEAN (*func_CreateHardLinkW)(LPCWSTR, LPCWSTR,
LPSECURITY_ATTRIBUTES);
#endif
#ifdef OF_WINDOWS
static of_time_interval_t
filetimeToTimeInterval(const FILETIME *filetime)
{
return (double)((int64_t)filetime->dwHighDateTime << 32 |
filetime->dwLowDateTime) / 10000000.0 - 11644473600.0;
}
static void
setErrno(void)
{
switch (GetLastError()) {
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
case ERROR_NO_MORE_FILES:
errno = ENOENT;
return;
case ERROR_ACCESS_DENIED:
errno = EACCES;
return;
case ERROR_DIRECTORY:
errno = ENOTDIR;
return;
case ERROR_NOT_READY:
errno = EBUSY;
return;
}
errno = 0;
}
#endif
#ifdef OF_AMIGAOS
static void
setErrno(void)
{
switch (IoErr()) {
case ERROR_DELETE_PROTECTED:
case ERROR_READ_PROTECTED:
case ERROR_WRITE_PROTECTED:
errno = EACCES;
break;
case ERROR_DISK_NOT_VALIDATED:
case ERROR_OBJECT_IN_USE:
errno = EBUSY;
break;
case ERROR_OBJECT_EXISTS:
errno = EEXIST;
break;
case ERROR_DIR_NOT_FOUND:
case ERROR_NO_MORE_ENTRIES:
case ERROR_OBJECT_NOT_FOUND:
errno = ENOENT;
break;
case ERROR_NO_FREE_STORE:
errno = ENOMEM;
break;
case ERROR_DISK_FULL:
errno = ENOSPC;
break;
case ERROR_DIRECTORY_NOT_EMPTY:
errno = ENOTEMPTY;
break;
case ERROR_DISK_WRITE_PROTECTED:
errno = EROFS;
break;
case ERROR_RENAME_ACROSS_DEVICES:
errno = EXDEV;
break;
default:
errno = 0;
break;
}
}
#endif
static int
of_stat(OFString *path, of_stat_t *buffer)
{
#if defined(OF_WINDOWS)
WIN32_FILE_ATTRIBUTE_DATA data;
bool success;
if ([OFSystemInfo isWindowsNT])
success = GetFileAttributesExW(path.UTF16String,
GetFileExInfoStandard, &data);
else
success = GetFileAttributesExA(
[path cStringWithEncoding: [OFLocale encoding]],
GetFileExInfoStandard, &data);
if (!success) {
setErrno();
return -1;
}
buffer->st_size = (uint64_t)data.nFileSizeHigh << 32 |
data.nFileSizeLow;
if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
buffer->st_mode = S_IFDIR;
else if (data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
/*
* No need to use A functions in this branch: This is only
* available on NTFS (and hence Windows NT) anyway.
*/
WIN32_FIND_DATAW findData;
HANDLE findHandle;
if ((findHandle = FindFirstFileW(path.UTF16String,
&findData)) == INVALID_HANDLE_VALUE) {
setErrno();
return -1;
}
@try {
if (!(findData.dwFileAttributes &
FILE_ATTRIBUTE_REPARSE_POINT)) {
/* Race? Indicate to try again. */
errno = EAGAIN;
return -1;
}
buffer->st_mode =
(findData.dwReserved0 == IO_REPARSE_TAG_SYMLINK
? S_IFLNK : S_IFREG);
} @finally {
FindClose(findHandle);
}
} else
buffer->st_mode = S_IFREG;
buffer->st_mode |= (data.dwFileAttributes & FILE_ATTRIBUTE_READONLY
? (S_IRUSR | S_IXUSR) : (S_IRUSR | S_IWUSR | S_IXUSR));
buffer->st_atime = filetimeToTimeInterval(&data.ftLastAccessTime);
buffer->st_mtime = filetimeToTimeInterval(&data.ftLastWriteTime);
buffer->st_ctime = buffer->st_birthtime =
filetimeToTimeInterval(&data.ftCreationTime);
buffer->fileAttributes = data.dwFileAttributes;
return 0;
#elif defined(OF_AMIGAOS) && !defined(OF_MORPHOS)
BPTR lock;
# ifdef OF_AMIGAOS4
struct ExamineData *ed;
# else
struct FileInfoBlock fib;
# endif
of_time_interval_t timeInterval;
struct Locale *locale;
struct DateStamp *date;
if ((lock = Lock([path cStringWithEncoding: [OFLocale encoding]],
SHARED_LOCK)) == 0) {
setErrno();
return -1;
}
# ifdef OF_AMIGAOS4
if ((ed = ExamineObjectTags(EX_FileLockInput, lock, TAG_END)) == NULL) {
# else
if (!Examine(lock, &fib)) {
# endif
UnLock(lock);
errno = 0;
return -1;
}
UnLock(lock);
# ifdef OF_AMIGAOS4
buffer->st_size = ed->FileSize;
buffer->st_mode = (EXD_IS_DIRECTORY(ed) ? S_IFDIR : S_IFREG);
# else
buffer->st_size = fib.fib_Size;
buffer->st_mode = (fib.fib_DirEntryType > 0 ? S_IFDIR : S_IFREG);
# endif
timeInterval = 252460800; /* 1978-01-01 */
locale = OpenLocale(NULL);
/*
* FIXME: This does not take DST into account. But unfortunately, there
* is no way to figure out if DST was in effect when the file was
* modified.
*/
timeInterval += locale->loc_GMTOffset * 60.0;
CloseLocale(locale);
# ifdef OF_AMIGAOS4
date = &ed->Date;
# else
date = &fib.fib_Date;
# endif
timeInterval += date->ds_Days * 86400.0;
timeInterval += date->ds_Minute * 60.0;
timeInterval += date->ds_Tick / (of_time_interval_t)TICKS_PER_SECOND;
buffer->st_atime = buffer->st_mtime = buffer->st_ctime = timeInterval;
# ifdef OF_AMIGAOS4
FreeDosObject(DOS_EXAMINEDATA, ed);
# endif
return 0;
#elif defined(HAVE_STAT64)
return stat64([path cStringWithEncoding: [OFLocale encoding]], buffer);
#else
return stat([path cStringWithEncoding: [OFLocale encoding]], buffer);
#endif
}
static int
of_lstat(OFString *path, of_stat_t *buffer)
{
#if defined(HAVE_LSTAT) && !defined(OF_WINDOWS) && !defined(OF_AMIGAOS) && \
!defined(OF_NINTENDO_3DS) && !defined(OF_WII)
# ifdef HAVE_LSTAT64
return lstat64([path cStringWithEncoding: [OFLocale encoding]], buffer);
# else
return lstat([path cStringWithEncoding: [OFLocale encoding]], buffer);
# endif
#else
return of_stat(path, buffer);
#endif
}
static void
setTypeAttribute(of_mutable_file_attributes_t attributes, of_stat_t *s)
{
if (S_ISREG(s->st_mode))
[attributes setObject: of_file_type_regular
forKey: of_file_attribute_key_type];
else if (S_ISDIR(s->st_mode))
[attributes setObject: of_file_type_directory
forKey: of_file_attribute_key_type];
#ifdef S_ISLNK
else if (S_ISLNK(s->st_mode))
[attributes setObject: of_file_type_symbolic_link
forKey: of_file_attribute_key_type];
#endif
#ifdef S_ISFIFO
else if (S_ISFIFO(s->st_mode))
[attributes setObject: of_file_type_fifo
forKey: of_file_attribute_key_type];
#endif
#ifdef S_ISCHR
else if (S_ISCHR(s->st_mode))
[attributes setObject: of_file_type_character_special
forKey: of_file_attribute_key_type];
#endif
#ifdef S_ISBLK
else if (S_ISBLK(s->st_mode))
[attributes setObject: of_file_type_block_special
forKey: of_file_attribute_key_type];
#endif
#ifdef S_ISSOCK
else if (S_ISSOCK(s->st_mode))
[attributes setObject: of_file_type_socket
forKey: of_file_attribute_key_type];
#endif
}
static void
setDateAttributes(of_mutable_file_attributes_t attributes, of_stat_t *s)
{
/* FIXME: We could be more precise on some OSes */
[attributes
setObject: [OFDate dateWithTimeIntervalSince1970: s->st_atime]
forKey: of_file_attribute_key_last_access_date];
[attributes
setObject: [OFDate dateWithTimeIntervalSince1970: s->st_mtime]
forKey: of_file_attribute_key_modification_date];
[attributes
setObject: [OFDate dateWithTimeIntervalSince1970: s->st_ctime]
forKey: of_file_attribute_key_status_change_date];
#ifdef HAVE_STRUCT_STAT_ST_BIRTHTIME
[attributes
setObject: [OFDate dateWithTimeIntervalSince1970: s->st_birthtime]
forKey: of_file_attribute_key_creation_date];
#endif
}
static void
setOwnerAndGroupAttributes(of_mutable_file_attributes_t attributes,
of_stat_t *s)
{
#ifdef OF_FILE_MANAGER_SUPPORTS_OWNER
[attributes setObject: [NSNumber numberWithUnsignedLong: s->st_uid]
forKey: of_file_attribute_key_posix_uid];
[attributes setObject: [NSNumber numberWithUnsignedLong: s->st_gid]
forKey: of_file_attribute_key_posix_gid];
# ifdef OF_HAVE_THREADS
[passwdMutex lock];
@try {
# endif
of_string_encoding_t encoding = [OFLocale encoding];
struct passwd *passwd = getpwuid(s->st_uid);
struct group *group_ = getgrgid(s->st_gid);
if (passwd != NULL) {
OFString *owner = [OFString
stringWithCString: passwd->pw_name
encoding: encoding];
[attributes setObject: owner
forKey: of_file_attribute_key_owner];
}
if (group_ != NULL) {
OFString *group = [OFString
stringWithCString: group_->gr_name
encoding: encoding];
[attributes setObject: group
forKey: of_file_attribute_key_group];
}
# ifdef OF_HAVE_THREADS
} @finally {
[passwdMutex unlock];
}
# endif
#endif
}
#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
static void
setSymbolicLinkDestinationAttribute(of_mutable_file_attributes_t attributes,
OFURL *URL)
{
OFString *path = URL.fileSystemRepresentation;
# ifndef OF_WINDOWS
of_string_encoding_t encoding = [OFLocale encoding];
char destinationC[PATH_MAX];
ssize_t length;
OFString *destination;
of_file_attribute_key_t key;
length = readlink([path cStringWithEncoding: encoding], destinationC,
PATH_MAX);
if (length < 0)
@throw [OFRetrieveItemAttributesFailedException
exceptionWithURL: URL
errNo: errno];
destination = [OFString stringWithCString: destinationC
encoding: encoding
length: length];
key = of_file_attribute_key_symbolic_link_destination;
[attributes setObject: destination
forKey: key];
# else
HANDLE handle;
OFString *destination;
if (func_CreateSymbolicLinkW == 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 [OFRetrieveItemAttributesFailedException
exceptionWithURL: URL
errNo: 0];
@try {
union {
char bytes[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
REPARSE_DATA_BUFFER data;
} buffer;
DWORD size;
wchar_t *tmp;
of_file_attribute_key_t key;
if (!DeviceIoControl(handle, FSCTL_GET_REPARSE_POINT, NULL, 0,
buffer.bytes, MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &size,
NULL))
@throw [OFRetrieveItemAttributesFailedException
exceptionWithURL: URL
errNo: 0];
if (buffer.data.ReparseTag != IO_REPARSE_TAG_SYMLINK)
@throw [OFRetrieveItemAttributesFailedException
exceptionWithURL: URL
errNo: 0];
# define slrb buffer.data.SymbolicLinkReparseBuffer
tmp = slrb.PathBuffer +
(slrb.SubstituteNameOffset / sizeof(wchar_t));
destination = [OFString
stringWithUTF16String: tmp
length: slrb.SubstituteNameLength /
sizeof(wchar_t)];
[attributes setObject: of_file_type_symbolic_link
forKey: of_file_attribute_key_type];
key = of_file_attribute_key_symbolic_link_destination;
[attributes setObject: destination
forKey: key];
# undef slrb
} @finally {
CloseHandle(handle);
}
# endif
}
#endif
@implementation OFFileURLHandler
+ (void)initialize
{
#ifdef OF_WINDOWS
HMODULE module;
#endif
if (self != [OFFileURLHandler class])
return;
#if defined(OF_FILE_MANAGER_SUPPORTS_OWNER) && defined(OF_HAVE_THREADS)
passwdMutex = [[OFMutex alloc] init];
#endif
#if !defined(HAVE_READDIR_R) && !defined(OF_WINDOWS) && defined(OF_HAVE_THREADS)
readdirMutex = [[OFMutex alloc] init];
#endif
#ifdef OF_WINDOWS
if ((module = LoadLibrary("msvcrt.dll")) != NULL)
func__wutime64 = (int (*)(const wchar_t *,
struct __utimbuf64 *))GetProcAddress(module, "_wutime64");
if ((module = LoadLibrary("kernel32.dll")) != NULL) {
func_CreateSymbolicLinkW =
(WINAPI BOOLEAN (*)(LPCWSTR, LPCWSTR, DWORD))
GetProcAddress(module, "CreateSymbolicLinkW");
func_CreateHardLinkW =
(WINAPI BOOLEAN (*)(LPCWSTR, LPCWSTR,
LPSECURITY_ATTRIBUTES))
GetProcAddress(module, "CreateHardLinkW");
}
#endif
/*
* Make sure OFFile is initialized.
* On some systems, this is needed to initialize the file system driver.
*/
[OFFile class];
}
+ (bool)of_directoryExistsAtPath: (OFString *)path
{
of_stat_t s;
if (of_stat(path, &s) == -1)
return false;
return S_ISDIR(s.st_mode);
}
- (OFStream *)openItemAtURL: (OFURL *)URL
mode: (OFString *)mode
{
void *pool = objc_autoreleasePoolPush();
OFFile *file = [[OFFile alloc]
initWithPath: URL.fileSystemRepresentation
mode: mode];
objc_autoreleasePoolPop(pool);
return [file autorelease];
}
- (of_file_attributes_t)attributesOfItemAtURL: (OFURL *)URL
{
of_mutable_file_attributes_t ret = [OFMutableDictionary dictionary];
void *pool = objc_autoreleasePoolPush();
OFString *path;
of_stat_t s;
if (URL == nil)
@throw [OFInvalidArgumentException exception];
if (![[URL scheme] isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
path = URL.fileSystemRepresentation;
if (of_lstat(path, &s) == -1)
@throw [OFRetrieveItemAttributesFailedException
exceptionWithURL: URL
errNo: errno];
if (s.st_size < 0)
@throw [OFOutOfRangeException exception];
[ret setObject: [NSNumber numberWithUnsignedLongLong: s.st_size]
forKey: of_file_attribute_key_size];
setTypeAttribute(ret, &s);
[ret setObject: [NSNumber numberWithUnsignedLong: s.st_mode]
forKey: of_file_attribute_key_posix_permissions];
setOwnerAndGroupAttributes(ret, &s);
setDateAttributes(ret, &s);
#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
if (S_ISLNK(s.st_mode))
setSymbolicLinkDestinationAttribute(ret, URL);
#endif
objc_autoreleasePoolPop(pool);
return ret;
}
- (void)of_setLastAccessDate: (OFDate *)lastAccessDate
andModificationDate: (OFDate *)modificationDate
ofItemAtURL: (OFURL *)URL
attributes: (of_file_attributes_t)attributes OF_DIRECT
{
OFString *path = URL.fileSystemRepresentation;
of_file_attribute_key_t attributeKey = (modificationDate != nil
? of_file_attribute_key_modification_date
: of_file_attribute_key_last_access_date);
if (lastAccessDate == nil)
lastAccessDate = modificationDate;
if (modificationDate == nil)
modificationDate = lastAccessDate;
#if defined(OF_WINDOWS)
if (func__wutime64 != NULL) {
struct __utimbuf64 times = {
.actime =
(__time64_t)lastAccessDate.timeIntervalSince1970,
.modtime =
(__time64_t)modificationDate.timeIntervalSince1970
};
if (func__wutime64([path UTF16String], ×) != 0)
@throw [OFSetItemAttributesFailedException
exceptionWithURL: URL
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], ×);
else
status = _utime(
[path cStringWithEncoding: [OFLocale encoding]],
×);
if (status != 0)
@throw [OFSetItemAttributesFailedException
exceptionWithURL: URL
attributes: attributes
failedAttribute: attributeKey
errNo: errno];
}
#elif defined(OF_AMIGAOS)
/* AmigaOS does not support access time. */
of_time_interval_t modificationTime =
modificationDate.timeIntervalSince1970;
struct Locale *locale;
struct DateStamp date;
modificationTime -= 252460800; /* 1978-01-01 */
if (modificationTime < 0)
@throw [OFOutOfRangeException exception];
locale = OpenLocale(NULL);
/*
* FIXME: This does not take DST into account. But unfortunately, there
* is no way to figure out if DST should be in effect for the
* timestamp.
*/
modificationTime -= locale->loc_GMTOffset * 60.0;
CloseLocale(locale);
date.ds_Days = modificationTime / 86400;
date.ds_Minute = ((LONG)modificationTime % 86400) / 60;
date.ds_Tick = fmod(modificationTime, 60) * TICKS_PER_SECOND;
# ifdef OF_AMIGAOS4
if (!SetDate([path cStringWithEncoding: [OFLocale encoding]],
&date) != 0) {
# else
if (!SetFileDate([path cStringWithEncoding: [OFLocale encoding]],
&date) != 0) {
# endif
setErrno();
@throw [OFSetItemAttributesFailedException
exceptionWithURL: URL
attributes: attributes
failedAttribute: attributeKey
errNo: errno];
}
#else
of_time_interval_t lastAccessTime =
lastAccessDate.timeIntervalSince1970;
of_time_interval_t modificationTime =
modificationDate.timeIntervalSince1970;
struct timeval times[2] = {
{
.tv_sec = (time_t)lastAccessTime,
.tv_usec =
(int)((lastAccessTime - times[0].tv_sec) * 1000000)
},
{
.tv_sec = (time_t)modificationTime,
.tv_usec = (int)((modificationTime - times[1].tv_sec) *
1000000)
},
};
if (utimes([path cStringWithEncoding: [OFLocale encoding]], times) != 0)
@throw [OFSetItemAttributesFailedException
exceptionWithURL: URL
attributes: attributes
failedAttribute: attributeKey
errNo: errno];
#endif
}
- (void)of_setPOSIXPermissions: (OFNumber *)permissions
ofItemAtURL: (OFURL *)URL
attributes: (of_file_attributes_t)attributes OF_DIRECT
{
#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
mode_t mode = (mode_t)permissions.unsignedLongValue;
OFString *path = URL.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
exceptionWithURL: URL
attributes: attributes
failedAttribute: of_file_attribute_key_posix_permissions
errNo: errno];
#else
OF_UNRECOGNIZED_SELECTOR
#endif
}
- (void)of_setOwner: (OFString *)owner
andGroup: (OFString *)group
ofItemAtURL: (OFURL *)URL
attributeKey: (of_file_attribute_key_t)attributeKey
attributes: (of_file_attributes_t)attributes OF_DIRECT
{
#ifdef OF_FILE_MANAGER_SUPPORTS_OWNER
OFString *path = URL.fileSystemRepresentation;
uid_t uid = -1;
gid_t gid = -1;
of_string_encoding_t 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
exceptionWithURL: URL
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
exceptionWithURL: URL
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
exceptionWithURL: URL
attributes: attributes
failedAttribute: attributeKey
errNo: errno];
#else
OF_UNRECOGNIZED_SELECTOR
#endif
}
- (void)setAttributes: (of_file_attributes_t)attributes
ofItemAtURL: (OFURL *)URL
{
void *pool = objc_autoreleasePoolPush();
OFEnumerator OF_GENERIC(of_file_attribute_key_t) *keyEnumerator;
OFEnumerator *objectEnumerator;
of_file_attribute_key_t key;
id object;
OFDate *lastAccessDate, *modificationDate;
if (URL == nil)
@throw [OFInvalidArgumentException exception];
if (![URL.scheme isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
keyEnumerator = [attributes keyEnumerator];
objectEnumerator = [attributes objectEnumerator];
while ((key = [keyEnumerator nextObject]) != nil &&
(object = [objectEnumerator nextObject]) != nil) {
if ([key isEqual: of_file_attribute_key_modification_date] ||
[key isEqual: of_file_attribute_key_last_access_date])
continue;
else if ([key isEqual: of_file_attribute_key_posix_permissions])
[self of_setPOSIXPermissions: object
ofItemAtURL: URL
attributes: attributes];
else if ([key isEqual: of_file_attribute_key_owner])
[self of_setOwner: object
andGroup: nil
ofItemAtURL: URL
attributeKey: key
attributes: attributes];
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];
}
lastAccessDate = [attributes
objectForKey: of_file_attribute_key_last_access_date];
modificationDate = [attributes
objectForKey: of_file_attribute_key_modification_date];
if (lastAccessDate != nil || modificationDate != nil)
[self of_setLastAccessDate: lastAccessDate
andModificationDate: modificationDate
ofItemAtURL: URL
attributes: attributes];
objc_autoreleasePoolPop(pool);
}
- (bool)fileExistsAtURL: (OFURL *)URL
{
void *pool = objc_autoreleasePoolPush();
of_stat_t s;
bool ret;
if (URL == nil)
@throw [OFInvalidArgumentException exception];
if (![URL.scheme isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
if (of_stat(URL.fileSystemRepresentation, &s) == -1) {
objc_autoreleasePoolPop(pool);
return false;
}
ret = S_ISREG(s.st_mode);
objc_autoreleasePoolPop(pool);
return ret;
}
- (bool)directoryExistsAtURL: (OFURL *)URL
{
void *pool = objc_autoreleasePoolPush();
of_stat_t s;
bool ret;
if (URL == nil)
@throw [OFInvalidArgumentException exception];
if (![URL.scheme isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
if (of_stat(URL.fileSystemRepresentation, &s) == -1) {
objc_autoreleasePoolPop(pool);
return false;
}
ret = S_ISDIR(s.st_mode);
objc_autoreleasePoolPop(pool);
return ret;
}
- (void)createDirectoryAtURL: (OFURL *)URL
{
void *pool = objc_autoreleasePoolPush();
OFString *path;
if (URL == nil)
@throw [OFInvalidArgumentException exception];
if (![URL.scheme isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
path = URL.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
exceptionWithURL: URL
errNo: errno];
#elif defined(OF_AMIGAOS)
BPTR lock;
if ((lock = CreateDir(
[path cStringWithEncoding: [OFLocale encoding]])) == 0) {
setErrno();
@throw [OFCreateDirectoryFailedException
exceptionWithURL: URL
errNo: errno];
}
UnLock(lock);
#else
if (mkdir([path cStringWithEncoding: [OFLocale encoding]], 0777) != 0)
@throw [OFCreateDirectoryFailedException
exceptionWithURL: URL
errNo: errno];
#endif
objc_autoreleasePoolPop(pool);
}
- (OFArray OF_GENERIC(OFString *) *)contentsOfDirectoryAtURL: (OFURL *)URL
{
OFMutableArray *files = [OFMutableArray array];
void *pool = objc_autoreleasePoolPush();
OFString *path;
if (URL == nil)
@throw [OFInvalidArgumentException exception];
if (![URL.scheme isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
path = URL.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) {
int errNo = 0;
if (GetLastError() == ERROR_FILE_NOT_FOUND)
errNo = ENOENT;
@throw [OFOpenItemFailedException
exceptionWithURL: URL
mode: nil
errNo: errNo];
}
@try {
do {
OFString *file;
if (wcscmp(fd.cFileName, L".") == 0 ||
wcscmp(fd.cFileName, L"..") == 0)
continue;
file = [[OFString alloc]
initWithUTF16String: fd.cFileName];
@try {
[files addObject: file];
} @finally {
[file release];
}
} while (FindNextFileW(handle, &fd));
if (GetLastError() != ERROR_NO_MORE_FILES)
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: EIO];
} @finally {
FindClose(handle);
}
} else {
of_string_encoding_t encoding = [OFLocale encoding];
WIN32_FIND_DATA fd;
if ((handle = FindFirstFileA(
[path cStringWithEncoding: encoding], &fd)) ==
INVALID_HANDLE_VALUE) {
int errNo = 0;
if (GetLastError() == ERROR_FILE_NOT_FOUND)
errNo = ENOENT;
@throw [OFOpenItemFailedException
exceptionWithURL: URL
mode: nil
errNo: errNo];
}
@try {
do {
OFString *file;
if (strcmp(fd.cFileName, ".") == 0 ||
strcmp(fd.cFileName, "..") == 0)
continue;
file = [[OFString alloc]
initWithCString: fd.cFileName
encoding: encoding];
@try {
[files addObject: file];
} @finally {
[file release];
}
} while (FindNextFileA(handle, &fd));
if (GetLastError() != ERROR_NO_MORE_FILES)
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: EIO];
} @finally {
FindClose(handle);
}
}
#elif defined(OF_AMIGAOS)
of_string_encoding_t encoding = [OFLocale encoding];
BPTR lock;
if ((lock = Lock([path cStringWithEncoding: encoding],
SHARED_LOCK)) == 0) {
setErrno();
@throw [OFOpenItemFailedException exceptionWithURL: URL
mode: nil
errNo: errno];
}
@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
exceptionWithURL: URL
mode: nil
errNo: 0];
@try {
while ((ed = ExamineDir(context)) != NULL) {
OFString *file = [[OFString alloc]
initWithCString: ed->Name
encoding: encoding];
@try {
[files addObject: file];
} @finally {
[file release];
}
}
} @finally {
ReleaseDirContext(context);
}
# else
struct FileInfoBlock fib;
if (!Examine(lock, &fib))
@throw [OFOpenItemFailedException
exceptionWithURL: URL
mode: nil
errNo: 0];
while (ExNext(lock, &fib)) {
OFString *file = [[OFString alloc]
initWithCString: fib.fib_FileName
encoding: encoding];
@try {
[files addObject: file];
} @finally {
[file release];
}
}
# endif
if (IoErr() != ERROR_NO_MORE_ENTRIES)
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: EIO];
} @finally {
UnLock(lock);
}
#else
of_string_encoding_t encoding = [OFLocale encoding];
DIR *dir;
if ((dir = opendir([path cStringWithEncoding: encoding])) == NULL)
@throw [OFOpenItemFailedException exceptionWithURL: URL
mode: nil
errNo: errno];
# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
@try {
[readdirMutex lock];
} @catch (id e) {
closedir(dir);
@throw e;
}
# endif
@try {
for (;;) {
struct dirent *dirent;
# ifdef HAVE_READDIR_R
struct dirent buffer;
# endif
OFString *file;
# ifdef HAVE_READDIR_R
if (readdir_r(dir, &buffer, &dirent) != 0)
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: errno];
if (dirent == NULL)
break;
# else
errno = 0;
if ((dirent = readdir(dir)) == NULL) {
if (errno == 0)
break;
else
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: errno];
}
# endif
if (strcmp(dirent->d_name, ".") == 0 ||
strcmp(dirent->d_name, "..") == 0)
continue;
file = [[OFString alloc] initWithCString: dirent->d_name
encoding: encoding];
@try {
[files addObject: file];
} @finally {
[file release];
}
}
} @finally {
closedir(dir);
# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
[readdirMutex unlock];
# endif
}
#endif
[files makeImmutable];
objc_autoreleasePoolPop(pool);
return files;
}
- (void)removeItemAtURL: (OFURL *)URL
{
void *pool = objc_autoreleasePoolPush();
OFString *path;
of_stat_t s;
if (URL == nil)
@throw [OFInvalidArgumentException exception];
if (![URL.scheme isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
path = URL.fileSystemRepresentation;
if (of_lstat(path, &s) != 0)
@throw [OFRemoveItemFailedException exceptionWithURL: URL
errNo: errno];
if (S_ISDIR(s.st_mode)) {
OFArray *contents;
@try {
contents = [self contentsOfDirectoryAtURL: URL];
} @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
exceptionWithURL: URL
errNo: [e errNo]];
@throw e;
}
for (OFString *item in contents) {
void *pool2 = objc_autoreleasePoolPush();
[self removeItemAtURL: [OFURL fileURLWithPath:
[path stringByAppendingPathComponent: 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
exceptionWithURL: URL
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
exceptionWithURL: URL
errNo: errno];
#endif
}
#ifdef OF_AMIGAOS
if (!DeleteFile([path cStringWithEncoding: [OFLocale encoding]])) {
setErrno();
@throw [OFRemoveItemFailedException exceptionWithURL: URL
errNo: errno];
}
#endif
objc_autoreleasePoolPop(pool);
}
#ifdef OF_FILE_MANAGER_SUPPORTS_LINKS
- (void)linkItemAtURL: (OFURL *)source
toURL: (OFURL *)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
of_string_encoding_t encoding = [OFLocale encoding];
if (link([sourcePath cStringWithEncoding: encoding],
[destinationPath cStringWithEncoding: encoding]) != 0)
@throw [OFLinkFailedException
exceptionWithSourceURL: source
destinationURL: destination
errNo: errno];
# else
if (func_CreateHardLinkW == NULL)
@throw [OFNotImplementedException exceptionWithSelector: _cmd
object: self];
if (!func_CreateHardLinkW(destinationPath.UTF16String,
sourcePath.UTF16String, NULL))
@throw [OFLinkFailedException
exceptionWithSourceURL: source
destinationURL: destination
errNo: 0];
# endif
objc_autoreleasePoolPop(pool);
}
#endif
#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
- (void)createSymbolicLinkAtURL: (OFURL *)URL
withDestinationPath: (OFString *)target
{
void *pool = objc_autoreleasePoolPush();
OFString *path;
if (URL == nil || target == nil)
@throw [OFInvalidArgumentException exception];
if (![URL.scheme isEqual: _scheme])
@throw [OFInvalidArgumentException exception];
path = URL.fileSystemRepresentation;
# ifndef OF_WINDOWS
of_string_encoding_t encoding = [OFLocale encoding];
if (symlink([target cStringWithEncoding: encoding],
[path cStringWithEncoding: encoding]) != 0)
@throw [OFCreateSymbolicLinkFailedException
exceptionWithURL: URL
target: target
errNo: errno];
# else
if (func_CreateSymbolicLinkW == NULL)
@throw [OFNotImplementedException exceptionWithSelector: _cmd
object: self];
if (!func_CreateSymbolicLinkW(path.UTF16String, target.UTF16String, 0))
@throw [OFCreateSymbolicLinkFailedException
exceptionWithURL: URL
target: target
errNo: 0];
# endif
objc_autoreleasePoolPop(pool);
}
#endif
- (bool)moveItemAtURL: (OFURL *)source
toURL: (OFURL *)destination
{
void *pool;
if (![source.scheme isEqual: _scheme] ||
![destination.scheme isEqual: _scheme])
return false;
if ([self fileExistsAtURL: destination])
@throw [OFMoveItemFailedException
exceptionWithSourceURL: source
destinationURL: destination
errNo: EEXIST];
pool = objc_autoreleasePoolPush();
#ifdef OF_AMIGAOS
of_string_encoding_t encoding = [OFLocale encoding];
if (!Rename([source.fileSystemRepresentation
cStringWithEncoding: encoding],
[destination.fileSystemRepresentation
cStringWithEncoding: encoding])) {
setErrno();
@throw [OFMoveItemFailedException
exceptionWithSourceURL: source
destinationURL: destination
errNo: errno];
}
#else
int status;
# ifdef OF_WINDOWS
if ([OFSystemInfo isWindowsNT])
status = _wrename(source.fileSystemRepresentation.UTF16String,
destination.fileSystemRepresentation.UTF16String);
else {
# endif
of_string_encoding_t encoding = [OFLocale encoding];
status = rename([source.fileSystemRepresentation
cStringWithEncoding: encoding],
[destination.fileSystemRepresentation
cStringWithEncoding: encoding]);
# ifdef OF_WINDOWS
}
# endif
if (status != 0)
@throw [OFMoveItemFailedException
exceptionWithSourceURL: source
destinationURL: destination
errNo: errno];
#endif
objc_autoreleasePoolPop(pool);
return true;
}
@end