/*
* Copyright (c) 2008, 2009, 2010, 2011
* Jonathan Schleifer <js@webkeks.org>
*
* 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 <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
#ifndef _WIN32
# include <pwd.h>
# include <grp.h>
#endif
#import "OFFile.h"
#import "OFString.h"
#import "OFArray.h"
#ifdef OF_THREADS
# import "OFThread.h"
#endif
#import "OFDate.h"
#import "OFApplication.h"
#import "OFAutoreleasePool.h"
#import "OFChangeDirectoryFailedException.h"
#import "OFChangeFileModeFailedException.h"
#import "OFChangeFileOwnerFailedException.h"
#import "OFCreateDirectoryFailedException.h"
#import "OFDeleteDirectoryFailedException.h"
#import "OFDeleteFileFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFLinkFailedException.h"
#import "OFNotImplementedException.h"
#import "OFOpenFileFailedException.h"
#import "OFReadFailedException.h"
#import "OFRenameFileFailedException.h"
#import "OFSeekFailedException.h"
#import "OFSymlinkFailedException.h"
#import "OFWriteFailedException.h"
#import "macros.h"
#ifdef _WIN32
# import <windows.h>
#endif
#ifndef O_BINARY
# define O_BINARY 0
#endif
#ifndef S_IRGRP
# define S_IRGRP 0
#endif
#ifndef S_IROTH
# define S_IROTH 0
#endif
#ifndef S_IWGRP
# define S_IWGRP 0
#endif
#ifndef S_IWOTH
# define S_IWOTH 0
#endif
#define DEFAULT_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
#define DIR_MODE DEFAULT_MODE | S_IXUSR | S_IXGRP | S_IXOTH
OFFile *of_stdin = nil;
OFFile *of_stdout = nil;
OFFile *of_stderr = nil;
#if defined(OF_THREADS) && !defined(_WIN32)
static OFMutex *mutex;
#endif
static int parse_mode(const char *mode)
{
if (!strcmp(mode, "r"))
return O_RDONLY;
if (!strcmp(mode, "rb"))
return O_RDONLY | O_BINARY;
if (!strcmp(mode, "r+"))
return O_RDWR;
if (!strcmp(mode, "rb+") || !strcmp(mode, "r+b"))
return O_RDWR | O_BINARY;
if (!strcmp(mode, "w"))
return O_WRONLY | O_CREAT | O_TRUNC;
if (!strcmp(mode, "wb"))
return O_WRONLY | O_CREAT | O_TRUNC | O_BINARY;
if (!strcmp(mode, "w+"))
return O_RDWR | O_CREAT | O_TRUNC;
if (!strcmp(mode, "wb+") || !strcmp(mode, "w+b"))
return O_RDWR | O_CREAT | O_TRUNC | O_BINARY;
if (!strcmp(mode, "a"))
return O_WRONLY | O_CREAT | O_APPEND;
if (!strcmp(mode, "ab"))
return O_WRONLY | O_CREAT | O_APPEND | O_BINARY;
if (!strcmp(mode, "a+"))
return O_RDWR | O_CREAT | O_APPEND;
if (!strcmp(mode, "ab+") || !strcmp(mode, "a+b"))
return O_RDWR | O_CREAT | O_APPEND | O_BINARY;
return -1;
}
void
of_log(OFConstantString *fmt, ...)
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFDate *date;
OFString *date_str, *me, *msg;
va_list args;
date = [OFDate date];
date_str = [date localDateStringWithFormat: @"%Y-%m-%d %H:%M:%S"];
me = [[OFApplication programName] lastPathComponent];
va_start(args, fmt);
msg = [[[OFString alloc] initWithFormat: fmt
arguments: args] autorelease];
va_end(args);
[of_stderr writeFormat: @"[%@.%03d %@(%d)] %@\n", date_str,
[date microsecond] / 1000, me, getpid(), msg];
[pool release];
}
@interface OFFileSingleton: OFFile
@end
@implementation OFFile
+ (void)load
{
of_stdin = [[OFFileSingleton alloc] initWithFileDescriptor: 0];
of_stdout = [[OFFileSingleton alloc] initWithFileDescriptor: 1];
of_stderr = [[OFFileSingleton alloc] initWithFileDescriptor: 2];
}
#if defined(OF_THREADS) && !defined(_WIN32)
+ (void)initialize
{
if (self == [OFFile class])
mutex = [[OFMutex alloc] init];
}
#endif
+ fileWithPath: (OFString*)path
mode: (OFString*)mode
{
return [[[self alloc] initWithPath: path
mode: mode] autorelease];
}
+ fileWithFileDescriptor: (int)fd_
{
return [[[self alloc] initWithFileDescriptor: fd_] autorelease];
}
+ (OFString*)currentDirectoryPath
{
OFString *ret;
char *buf = getcwd(NULL, 0);
@try {
ret = [OFString stringWithCString: buf];
} @finally {
free(buf);
}
return ret;
}
+ (BOOL)fileExistsAtPath: (OFString*)path
{
struct stat s;
if (stat([path cString], &s) == -1)
return NO;
if (S_ISREG(s.st_mode))
return YES;
return NO;
}
+ (BOOL)directoryExistsAtPath: (OFString*)path
{
struct stat s;
if (stat([path cString], &s) == -1)
return NO;
if (S_ISDIR(s.st_mode))
return YES;
return NO;
}
+ (void)createDirectoryAtPath: (OFString*)path
{
#ifndef _WIN32
if (mkdir([path cString], DIR_MODE))
#else
if (mkdir([path cString]))
#endif
@throw [OFCreateDirectoryFailedException newWithClass: self
path: path];
}
+ (OFArray*)filesInDirectoryAtPath: (OFString*)path
{
OFAutoreleasePool *pool;
OFMutableArray *files = [OFMutableArray array];
#ifndef _WIN32
DIR *dir;
struct dirent *dirent;
if ((dir = opendir([path cString])) == NULL)
@throw [OFOpenFileFailedException newWithClass: self
path: path
mode: @"r"];
@try {
pool = [[OFAutoreleasePool alloc] init];
while ((dirent = readdir(dir)) != NULL) {
OFString *file;
if (!strcmp(dirent->d_name, ".") ||
!strcmp(dirent->d_name, ".."))
continue;
file = [OFString stringWithCString: dirent->d_name];
[files addObject: file];
[pool releaseObjects];
}
[pool release];
} @finally {
closedir(dir);
}
#else
HANDLE handle;
WIN32_FIND_DATA fd;
path = [path stringByAppendingString: @"\\*"];
if ((handle = FindFirstFile([path cString], &fd)) ==
INVALID_HANDLE_VALUE)
@throw [OFOpenFileFailedException newWithClass: self
path: path
mode: @"r"];
@try {
pool = [[OFAutoreleasePool alloc] init];
do {
OFString *file;
if (!strcmp(fd.cFileName, ".") ||
!strcmp(fd.cFileName, ".."))
continue;
file = [OFString stringWithCString: fd.cFileName];
[files addObject: file];
[pool releaseObjects];
} while (FindNextFile(handle, &fd));
[pool release];
} @finally {
FindClose(handle);
}
#endif
/*
* Class swizzle the array to be immutable. We declared the return type
* to be OFArray*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
files->isa = [OFArray class];
return files;
}
+ (void)changeToDirectory: (OFString*)path
{
if (chdir([path cString]))
@throw [OFChangeDirectoryFailedException newWithClass: self
path: path];
}
#ifndef _PSP
+ (void)changeModeOfFile: (OFString*)path
toMode: (mode_t)mode
{
# ifndef _WIN32
if (chmod([path cString], mode))
@throw [OFChangeFileModeFailedException newWithClass: self
path: path
mode: mode];
# else
DWORD attrs = GetFileAttributes([path cString]);
if (attrs == INVALID_FILE_ATTRIBUTES)
@throw [OFChangeFileModeFailedException newWithClass: self
path: path
mode: mode];
if ((mode / 100) & 2)
attrs &= ~FILE_ATTRIBUTE_READONLY;
else
attrs |= FILE_ATTRIBUTE_READONLY;
if (!SetFileAttributes([path cString], attrs))
@throw [OFChangeFileModeFailedException newWithClass: self
path: path
mode: mode];
# endif
}
#endif
+ (OFDate*)modificationDateOfFile: (OFString*)path
{
struct stat s;
if (stat([path cString], &s) == -1)
/* FIXME: Maybe use another exception? */
@throw [OFOpenFileFailedException newWithClass: self
path: path
mode: @"r"];
/* FIXME: We could be more precise on some OSes */
return [OFDate dateWithTimeIntervalSince1970: s.st_mtime];
}
#if !defined(_WIN32) && !defined(_PSP)
+ (void)changeOwnerOfFile: (OFString*)path
toOwner: (OFString*)owner
group: (OFString*)group
{
uid_t uid = -1;
gid_t gid = -1;
if (owner == nil && group == nil)
@throw [OFInvalidArgumentException newWithClass: self
selector: _cmd];
# ifdef OF_THREADS
[mutex lock];
@try {
# endif
if (owner != nil) {
struct passwd *pw;
if ((pw = getpwnam([owner cString])) == NULL)
@throw [OFChangeFileOwnerFailedException
newWithClass: self
path: path
owner: owner
group: group];
uid = pw->pw_uid;
}
if (group != nil) {
struct group *gr;
if ((gr = getgrnam([group cString])) == NULL)
@throw [OFChangeFileOwnerFailedException
newWithClass: self
path: path
owner: owner
group: group];
gid = gr->gr_gid;
}
# ifdef OF_THREADS
} @finally {
[mutex unlock];
}
# endif
if (chown([path cString], uid, gid))
@throw [OFChangeFileOwnerFailedException newWithClass: self
path: path
owner: owner
group: group];
}
#endif
+ (void)copyFileAtPath: (OFString*)from
toPath: (OFString*)to
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
BOOL override;
OFFile *src;
OFFile *dest;
char buf[4096];
if ([self directoryExistsAtPath: to]) {
OFString *filename = [from lastPathComponent];
to = [OFString stringWithPath: to, filename, nil];
}
override = [self fileExistsAtPath: to];
src = nil;
dest = nil;
@try {
src = [OFFile fileWithPath: from
mode: @"rb"];
dest = [OFFile fileWithPath: to
mode: @"wb"];
while (![src isAtEndOfStream]) {
size_t len = [src readNBytes: 4096
intoBuffer: buf];
[dest writeNBytes: len
fromBuffer: buf];
}
#if !defined(_WIN32) && !defined(_PSP)
if (!override) {
struct stat s;
if (fstat(src->fd, &s) == 0)
fchmod(dest->fd, s.st_mode);
}
#endif
} @finally {
[src close];
[dest close];
}
[pool release];
}
+ (void)renameFileAtPath: (OFString*)from
toPath: (OFString*)to
{
if ([self directoryExistsAtPath: to]) {
OFString *filename = [from lastPathComponent];
to = [OFString stringWithPath: to, filename, nil];
}
#ifndef _WIN32
if (rename([from cString], [to cString]))
#else
if (!MoveFile([from cString], [to cString]))
#endif
@throw [OFRenameFileFailedException newWithClass: self
sourcePath: from
destinationPath: to];
}
+ (void)deleteFileAtPath: (OFString*)path
{
#ifndef _WIN32
if (unlink([path cString]))
#else
if (!DeleteFile([path cString]))
#endif
@throw [OFDeleteFileFailedException newWithClass: self
path: path];
}
+ (void)deleteDirectoryAtPath: (OFString*)path
{
if (rmdir([path cString]))
@throw [OFDeleteDirectoryFailedException newWithClass: self
path: path];
}
#ifndef _WIN32
+ (void)linkFileAtPath: (OFString*)src
toPath: (OFString*)dest
{
if ([self directoryExistsAtPath: dest]) {
OFString *filename = [src lastPathComponent];
dest = [OFString stringWithPath: dest, filename, nil];
}
if (link([src cString], [dest cString]) != 0)
@throw [OFLinkFailedException newWithClass: self
sourcePath: src
destinationPath: dest];
}
#endif
#if !defined(_WIN32) && !defined(_PSP)
+ (void)symlinkFileAtPath: (OFString*)src
toPath: (OFString*)dest
{
if ([self directoryExistsAtPath: dest]) {
OFString *filename = [src lastPathComponent];
dest = [OFString stringWithPath: dest, filename, nil];
}
if (symlink([src cString], [dest cString]) != 0)
@throw [OFSymlinkFailedException newWithClass: self
sourcePath: src
destinationPath: dest];
}
#endif
- init
{
Class c = isa;
[self release];
@throw [OFNotImplementedException newWithClass: c
selector: _cmd];
}
- initWithPath: (OFString*)path
mode: (OFString*)mode
{
self = [super init];
@try {
int flags;
if ((flags = parse_mode([mode cString])) == -1)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
if ((fd = open([path cString], flags, DEFAULT_MODE)) == -1)
@throw [OFOpenFileFailedException newWithClass: isa
path: path
mode: mode];
closable = YES;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithFileDescriptor: (int)fd_
{
self = [super init];
fd = fd_;
return self;
}
- (BOOL)_isAtEndOfStream
{
if (fd == -1)
return YES;
return eos;
}
- (size_t)_readNBytes: (size_t)size
intoBuffer: (char*)buf
{
size_t ret;
if (fd == -1 || eos)
@throw [OFReadFailedException newWithClass: isa
stream: self
requestedSize: size];
if ((ret = read(fd, buf, size)) == 0)
eos = YES;
return ret;
}
- (size_t)_writeNBytes: (size_t)size
fromBuffer: (const char*)buf
{
size_t ret;
if (fd == -1 || eos || (ret = write(fd, buf, size)) < size)
@throw [OFWriteFailedException newWithClass: isa
stream: self
requestedSize: size];
return ret;
}
- (void)_seekToOffset: (off_t)offset
{
if (lseek(fd, offset, SEEK_SET) == -1)
@throw [OFSeekFailedException newWithClass: isa
stream: self
offset: offset
whence: SEEK_SET];
}
- (off_t)_seekForwardWithOffset: (off_t)offset
{
off_t ret;
if ((ret = lseek(fd, offset, SEEK_CUR)) == -1)
@throw [OFSeekFailedException newWithClass: isa
stream: self
offset: offset
whence: SEEK_CUR];
return ret;
}
- (off_t)_seekToOffsetRelativeToEnd: (off_t)offset
{
off_t ret;
if ((ret = lseek(fd, offset, SEEK_END)) == -1)
@throw [OFSeekFailedException newWithClass: isa
stream: self
offset: offset
whence: SEEK_END];
return ret;
}
- (int)fileDescriptor
{
return fd;
}
- (void)close
{
if (fd != -1)
close(fd);
fd = -1;
}
- (void)dealloc
{
if (closable && fd != -1)
close(fd);
[super dealloc];
}
@end
@implementation OFFileSingleton
- initWithPath: (OFString*)path
mode: (OFString*)mode
{
Class c = isa;
[self release];
@throw [OFNotImplementedException newWithClass: c
selector: _cmd];
}
- autorelease
{
return self;
}
- retain
{
return self;
}
- (void)release
{
}
- (unsigned int)retainCount
{
return OF_RETAIN_COUNT_MAX;
}
- (void)dealloc
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
[super dealloc]; /* Get rid of stupid warning */
}
- (void)_seekToOffset: (off_t)offset
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- (off_t)_seekForwardWithOffset: (off_t)offset
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- (off_t)_seekToOffsetRelativeToEnd: (off_t)offset
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
@end