/*
* Copyright (c) 2008-2021 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 <string.h>
#import "OFApplication.h"
#import "OFArray.h"
#import "OFFile.h"
#import "OFFileManager.h"
#import "OFLocale.h"
#import "OFOptionsParser.h"
#import "OFSandbox.h"
#import "OFStdIOStream.h"
#import "OFURL.h"
#import "OFArc.h"
#import "GZIPArchive.h"
#import "LHAArchive.h"
#import "TarArchive.h"
#import "ZIPArchive.h"
#import "OFCreateDirectoryFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFNotImplementedException.h"
#import "OFOpenItemFailedException.h"
#import "OFReadFailedException.h"
#import "OFSeekFailedException.h"
#import "OFWriteFailedException.h"
#define BUFFER_SIZE 4096
OF_APPLICATION_DELEGATE(OFArc)
static void
help(OFStream *stream, bool full, int status)
{
[stream writeLine: OF_LOCALIZED(@"usage",
@"Usage: %[prog] -[acCfhlnpqtvx] archive.zip [file1 file2 ...]",
@"prog", [OFApplication programName])];
if (full) {
[stream writeString: @"\n"];
[stream writeLine: OF_LOCALIZED(@"full_usage",
@"Options:\n"
@" -a --append Append to archive\n"
@" -c --create Create archive\n"
@" -C --directory Extract into the specified "
@"directory\n"
@" -E --encoding The encoding used by the archive "
"(only tar files)\n"
@" -f --force Force / overwrite files\n"
@" -h --help Show this help\n"
@" -l --list List all files in the archive\n"
@" -n --no-clobber Never overwrite files\n"
@" -p --print Print one or more files from the "
@"archive\n"
@" -q --quiet Quiet mode (no output, except "
@"errors)\n"
@" -t --type Archive type (gz, lha, tar, tgz, "
@"zip)\n"
@" -v --verbose Verbose output for file list\n"
@" -x --extract Extract files")];
}
[OFApplication terminateWithStatus: status];
}
static void
mutuallyExclusiveError(of_unichar_t shortOption1, OFString *longOption1,
of_unichar_t shortOption2, OFString *longOption2)
{
OFString *shortOption1Str = [OFString stringWithFormat: @"%C",
shortOption1];
OFString *shortOption2Str = [OFString stringWithFormat: @"%C",
shortOption2];
[of_stderr writeLine: OF_LOCALIZED(@"2_options_mutually_exclusive",
@"Error: -%[shortopt1] / --%[longopt1] and "
@"-%[shortopt2] / --%[longopt2] "
@"are mutually exclusive!",
@"shortopt1", shortOption1Str,
@"longopt1", longOption1,
@"shortopt2", shortOption2Str,
@"longopt2", longOption2)];
[OFApplication terminateWithStatus: 1];
}
static void
mutuallyExclusiveError5(of_unichar_t shortOption1, OFString *longOption1,
of_unichar_t shortOption2, OFString *longOption2,
of_unichar_t shortOption3, OFString *longOption3,
of_unichar_t shortOption4, OFString *longOption4,
of_unichar_t shortOption5, OFString *longOption5)
{
OFString *shortOption1Str = [OFString stringWithFormat: @"%C",
shortOption1];
OFString *shortOption2Str = [OFString stringWithFormat: @"%C",
shortOption2];
OFString *shortOption3Str = [OFString stringWithFormat: @"%C",
shortOption3];
OFString *shortOption4Str = [OFString stringWithFormat: @"%C",
shortOption4];
OFString *shortOption5Str = [OFString stringWithFormat: @"%C",
shortOption5];
[of_stderr writeLine: OF_LOCALIZED(@"5_options_mutually_exclusive",
@"Error: -%[shortopt1] / --%[longopt1], "
@"-%[shortopt2] / --%[longopt2], -%[shortopt3] / --%[longopt3], "
@"-%[shortopt4] / --%[longopt4] and\n"
@" -%[shortopt5] / --%[longopt5] are mutually exclusive!",
@"shortopt1", shortOption1Str,
@"longopt1", longOption1,
@"shortopt2", shortOption2Str,
@"longopt2", longOption2,
@"shortopt3", shortOption3Str,
@"longopt3", longOption3,
@"shortopt4", shortOption4Str,
@"longopt4", longOption4,
@"shortopt5", shortOption5Str,
@"longopt5", longOption5)];
[OFApplication terminateWithStatus: 1];
}
static void
writingNotSupported(OFString *type)
{
[of_stderr writeLine: OF_LOCALIZED(
@"writing_not_supported",
@"Writing archives of type %[type] is not (yet) supported!",
@"type", type)];
}
@implementation OFArc
- (void)applicationDidFinishLaunching
{
OFString *outputDir, *encodingString, *type;
const of_options_parser_option_t options[] = {
{ 'a', @"append", 0, NULL, NULL },
{ 'c', @"create", 0, NULL, NULL },
{ 'C', @"directory", 1, NULL, &outputDir },
{ 'E', @"encoding", 1, NULL, &encodingString },
{ 'f', @"force", 0, NULL, NULL },
{ 'h', @"help", 0, NULL, NULL },
{ 'l', @"list", 0, NULL, NULL },
{ 'n', @"no-clobber", 0, NULL, NULL },
{ 'p', @"print", 0, NULL, NULL },
{ 'q', @"quiet", 0, NULL, NULL },
{ 't', @"type", 1, NULL, &type },
{ 'v', @"verbose", 0, NULL, NULL },
{ 'x', @"extract", 0, NULL, NULL },
{ '\0', nil, 0, NULL, NULL }
};
of_unichar_t option, mode = '\0';
of_string_encoding_t encoding = OF_STRING_ENCODING_AUTODETECT;
OFOptionsParser *optionsParser;
OFArray OF_GENERIC(OFString *) *remainingArguments, *files;
id <Archive> archive;
#ifdef OF_HAVE_SANDBOX
OFSandbox *sandbox = [OFSandbox sandbox];
sandbox.allowsStdIO = true;
sandbox.allowsReadingFiles = true;
sandbox.allowsWritingFiles = true;
sandbox.allowsCreatingFiles = true;
sandbox.allowsChangingFileAttributes = true;
sandbox.allowsUserDatabaseReading = true;
/* Dropped after parsing options */
sandbox.allowsUnveil = true;
[OFApplication activateSandbox: sandbox];
#endif
#ifndef OF_AMIGAOS
[OFLocale addLanguageDirectory: @LANGUAGE_DIR];
#else
[OFLocale addLanguageDirectory: @"PROGDIR:/share/ofarc/lang"];
#endif
optionsParser = [OFOptionsParser parserWithOptions: options];
while ((option = [optionsParser nextOption]) != '\0') {
switch (option) {
case 'f':
if (_overwrite < 0)
mutuallyExclusiveError(
'f', @"force", 'n', @"no-clobber");
_overwrite = 1;
break;
case 'n':
if (_overwrite > 0)
mutuallyExclusiveError(
'f', @"force", 'n', @"no-clobber");
_overwrite = -1;
break;
case 'v':
if (_outputLevel < 0)
mutuallyExclusiveError(
'q', @"quiet", 'v', @"verbose");
_outputLevel++;
break;
case 'q':
if (_outputLevel > 0)
mutuallyExclusiveError(
'q', @"quiet", 'v', @"verbose");
_outputLevel--;
break;
case 'a':
case 'c':
case 'l':
case 'p':
case 'x':
if (mode != '\0')
mutuallyExclusiveError5(
'a', @"append",
'c', @"create",
'l', @"list",
'p', @"print",
'x', @"extract");
mode = option;
break;
case 'h':
help(of_stdout, true, 0);
break;
case '=':
[of_stderr writeLine: OF_LOCALIZED(
@"option_takes_no_argument",
@"%[prog]: Option --%[opt] takes no argument",
@"prog", [OFApplication programName],
@"opt", optionsParser.lastLongOption)];
[OFApplication terminateWithStatus: 1];
break;
case ':':
if (optionsParser.lastLongOption != nil)
[of_stderr writeLine: OF_LOCALIZED(
@"long_option_requires_argument",
@"%[prog]: Option --%[opt] requires an "
@"argument",
@"prog", [OFApplication programName],
@"opt", optionsParser.lastLongOption)];
else {
OFString *optStr = [OFString
stringWithFormat: @"%C",
optionsParser.lastOption];
[of_stderr writeLine: OF_LOCALIZED(
@"option_requires_argument",
@"%[prog]: Option -%[opt] requires an "
@"argument",
@"prog", [OFApplication programName],
@"opt", optStr)];
}
[OFApplication terminateWithStatus: 1];
break;
case '?':
if (optionsParser.lastLongOption != nil)
[of_stderr writeLine: OF_LOCALIZED(
@"unknown_long_option",
@"%[prog]: Unknown option: --%[opt]",
@"prog", [OFApplication programName],
@"opt", optionsParser.lastLongOption)];
else {
OFString *optStr = [OFString
stringWithFormat: @"%C",
optionsParser.lastOption];
[of_stderr writeLine: OF_LOCALIZED(
@"unknown_option",
@"%[prog]: Unknown option: -%[opt]",
@"prog", [OFApplication programName],
@"opt", optStr)];
}
[OFApplication terminateWithStatus: 1];
break;
}
}
@try {
if (encodingString != nil)
encoding = of_string_parse_encoding(encodingString);
} @catch (OFInvalidArgumentException *e) {
[of_stderr writeLine: OF_LOCALIZED(
@"invalid_encoding",
@"%[prog]: Invalid encoding: %[encoding]",
@"prog", [OFApplication programName],
@"encoding", encodingString)];
[OFApplication terminateWithStatus: 1];
}
remainingArguments = optionsParser.remainingArguments;
switch (mode) {
case 'a':
case 'c':
if (remainingArguments.count < 1)
help(of_stderr, false, 1);
files = [remainingArguments objectsInRange:
of_range(1, remainingArguments.count - 1)];
#ifdef OF_HAVE_SANDBOX
if (![remainingArguments.firstObject isEqual: @"-"])
[sandbox unveilPath: remainingArguments.firstObject
permissions: (mode == 'a' ? @"rwc" : @"wc")];
for (OFString *path in files)
[sandbox unveilPath: path permissions: @"r"];
sandbox.allowsUnveil = false;
[OFApplication activateSandbox: sandbox];
#endif
archive = [self
openArchiveWithPath: remainingArguments.firstObject
type: type
mode: mode
encoding: encoding];
[archive addFiles: files];
break;
case 'l':
if (remainingArguments.count != 1)
help(of_stderr, false, 1);
#ifdef OF_HAVE_SANDBOX
if (![remainingArguments.firstObject isEqual: @"-"])
[sandbox unveilPath: remainingArguments.firstObject
permissions: @"r"];
sandbox.allowsUnveil = false;
[OFApplication activateSandbox: sandbox];
#endif
archive = [self
openArchiveWithPath: remainingArguments.firstObject
type: type
mode: mode
encoding: encoding];
[archive listFiles];
break;
case 'p':
if (remainingArguments.count < 1)
help(of_stderr, false, 1);
#ifdef OF_HAVE_SANDBOX
if (![remainingArguments.firstObject isEqual: @"-"])
[sandbox unveilPath: remainingArguments.firstObject
permissions: @"r"];
sandbox.allowsUnveil = false;
[OFApplication activateSandbox: sandbox];
#endif
files = [remainingArguments objectsInRange:
of_range(1, remainingArguments.count - 1)];
archive = [self
openArchiveWithPath: remainingArguments.firstObject
type: type
mode: mode
encoding: encoding];
[archive printFiles: files];
break;
case 'x':
if (remainingArguments.count < 1)
help(of_stderr, false, 1);
files = [remainingArguments objectsInRange:
of_range(1, remainingArguments.count - 1)];
#ifdef OF_HAVE_SANDBOX
if (![remainingArguments.firstObject isEqual: @"-"])
[sandbox unveilPath: remainingArguments.firstObject
permissions: @"r"];
if (files.count > 0)
for (OFString *path in files)
[sandbox unveilPath: path permissions: @"wc"];
else {
OFString *path = (outputDir != nil
? outputDir : OF_PATH_CURRENT_DIRECTORY);
/* We need 'r' to change the directory to it. */
[sandbox unveilPath: path permissions: @"rwc"];
}
sandbox.allowsUnveil = false;
[OFApplication activateSandbox: sandbox];
#endif
archive = [self
openArchiveWithPath: remainingArguments.firstObject
type: type
mode: mode
encoding: encoding];
if (outputDir != nil) {
OFFileManager *fileManager =
[OFFileManager defaultManager];
if (![fileManager directoryExistsAtPath: outputDir])
[fileManager createDirectoryAtPath: outputDir
createParents: true];
[fileManager changeCurrentDirectoryPath: outputDir];
}
@try {
[archive extractFiles: files];
} @catch (OFCreateDirectoryFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror(e.errNo)
encoding: [OFLocale encoding]];
[of_stderr writeString: @"\r"];
[of_stderr writeLine: OF_LOCALIZED(
@"failed_to_create_directory",
@"Failed to create directory %[dir]: %[error]",
@"dir", e.URL.fileSystemRepresentation,
@"error", error)];
_exitStatus = 1;
} @catch (OFOpenItemFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror(e.errNo)
encoding: [OFLocale encoding]];
[of_stderr writeString: @"\r"];
[of_stderr writeLine: OF_LOCALIZED(
@"failed_to_open_file",
@"Failed to open file %[file]: %[error]",
@"file", e.path,
@"error", error)];
_exitStatus = 1;
}
break;
default:
help(of_stderr, true, 1);
break;
}
[OFApplication terminateWithStatus: _exitStatus];
}
- (id <Archive>)openArchiveWithPath: (OFString *)path
type: (OFString *)type
mode: (char)mode
encoding: (of_string_encoding_t)encoding
{
OFString *modeString, *fileModeString;
OFStream *file = nil;
id <Archive> archive = nil;
[_archivePath release];
_archivePath = [path copy];
if (path == nil)
return nil;
switch (mode) {
case 'a':
modeString = @"a";
fileModeString = @"r+";
break;
case 'c':
modeString = fileModeString = @"w";
break;
case 'l':
case 'p':
case 'x':
modeString = fileModeString = @"r";
break;
default:
@throw [OFInvalidArgumentException exception];
}
if ([path isEqual: @"-"]) {
switch (mode) {
case 'a':
case 'c':
file = of_stdout;
break;
case 'l':
case 'p':
case 'x':
file = of_stdin;
break;
default:
@throw [OFInvalidArgumentException exception];
}
} else {
@try {
file = [OFFile fileWithPath: path mode: fileModeString];
} @catch (OFOpenItemFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror(e.errNo)
encoding: [OFLocale encoding]];
[of_stderr writeString: @"\r"];
[of_stderr writeLine: OF_LOCALIZED(
@"failed_to_open_file",
@"Failed to open file %[file]: %[error]",
@"file", e.path,
@"error", error)];
[OFApplication terminateWithStatus: 1];
}
}
if (type == nil || [type isEqual: @"auto"]) {
/* This one has to be first for obvious reasons */
if ([path hasSuffix: @".tar.gz"] || [path hasSuffix: @".tgz"] ||
[path hasSuffix: @".TAR.GZ"] || [path hasSuffix: @".TGZ"])
type = @"tgz";
else if ([path hasSuffix: @".gz"] || [path hasSuffix: @".GZ"])
type = @"gz";
else if ([path hasSuffix: @".lha"] || [path hasSuffix: @".lzh"])
type = @"lha";
else if ([path hasSuffix: @".tar"] || [path hasSuffix: @".TAR"])
type = @"tar";
else
type = @"zip";
}
@try {
if ([type isEqual: @"gz"])
archive = [GZIPArchive archiveWithStream: file
mode: modeString
encoding: encoding];
else if ([type isEqual: @"lha"])
archive = [LHAArchive archiveWithStream: file
mode: modeString
encoding: encoding];
else if ([type isEqual: @"tar"])
archive = [TarArchive archiveWithStream: file
mode: modeString
encoding: encoding];
else if ([type isEqual: @"tgz"]) {
OFStream *GZIPStream = [OFGZIPStream
streamWithStream: file
mode: modeString];
archive = [TarArchive archiveWithStream: GZIPStream
mode: modeString
encoding: encoding];
} else if ([type isEqual: @"zip"])
archive = [ZIPArchive archiveWithStream: file
mode: modeString
encoding: encoding];
else {
[of_stderr writeLine: OF_LOCALIZED(
@"unknown_archive_type",
@"Unknown archive type: %[type]",
@"type", type)];
goto error;
}
} @catch (OFNotImplementedException *e) {
if ((mode == 'a' || mode == 'c') && sel_isEqual(e.selector,
@selector(initWithStream:mode:))) {
writingNotSupported(type);
goto error;
}
@throw e;
} @catch (OFReadFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror(e.errNo)
encoding: [OFLocale encoding]];
[of_stderr writeLine: OF_LOCALIZED(@"failed_to_read_file",
@"Failed to read file %[file]: %[error]",
@"file", path,
@"error", error)];
goto error;
} @catch (OFSeekFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror(e.errNo)
encoding: [OFLocale encoding]];
[of_stderr writeLine: OF_LOCALIZED(@"failed_to_seek_in_file",
@"Failed to seek in file %[file]: %[error]",
@"file", path,
@"error", error)];
goto error;
} @catch (OFInvalidFormatException *e) {
[of_stderr writeLine: OF_LOCALIZED(
@"file_is_not_a_valid_archive",
@"File %[file] is not a valid archive!",
@"file", path)];
goto error;
}
if ((mode == 'a' || mode == 'c') &&
![archive respondsToSelector: @selector(addFiles:)]) {
writingNotSupported(type);
goto error;
}
return archive;
error:
if (mode == 'c')
[[OFFileManager defaultManager] removeItemAtPath: path];
[OFApplication terminateWithStatus: 1];
return nil;
}
- (bool)shouldExtractFile: (OFString *)fileName
outFileName: (OFString *)outFileName
{
OFString *line;
if (_overwrite == 1 ||
![[OFFileManager defaultManager] fileExistsAtPath: outFileName])
return true;
if (_overwrite == -1) {
if (_outputLevel >= 0) {
[of_stdout writeString: @" "];
[of_stdout writeLine:
OF_LOCALIZED(@"file_skipped", @"skipped")];
}
return false;
}
do {
[of_stderr writeString: @"\r"];
[of_stderr writeString: OF_LOCALIZED(@"ask_overwrite",
@"Overwrite %[file]? [ynAN?]",
@"file", fileName)];
[of_stderr writeString: @" "];
line = [of_stdin readLine];
if ([line isEqual: @"?"])
[of_stderr writeLine: OF_LOCALIZED(
@"ask_overwrite_help",
@" y: yes\n"
@" n: no\n"
@" A: always\n"
@" N: never")];
} while (![line isEqual: @"y"] && ![line isEqual: @"n"] &&
![line isEqual: @"N"] && ![line isEqual: @"A"]);
if ([line isEqual: @"A"])
_overwrite = 1;
else if ([line isEqual: @"N"])
_overwrite = -1;
if ([line isEqual: @"n"] || [line isEqual: @"N"]) {
if (_outputLevel >= 0)
[of_stdout writeLine: OF_LOCALIZED(@"skipping_file",
@"Skipping %[file]...",
@"file", fileName)];
return false;
}
if (_outputLevel >= 0)
[of_stdout writeString: OF_LOCALIZED(@"extracting_file",
@"Extracting %[file]...",
@"file", fileName)];
return true;
}
- (ssize_t)copyBlockFromStream: (OFStream *)input
toStream: (OFStream *)output
fileName: (OFString *)fileName
{
char buffer[BUFFER_SIZE];
size_t length;
@try {
length = [input readIntoBuffer: buffer length: BUFFER_SIZE];
} @catch (OFReadFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror(e.errNo)
encoding: [OFLocale encoding]];
[of_stdout writeString: @"\r"];
[of_stderr writeLine: OF_LOCALIZED(@"failed_to_read_file",
@"Failed to read file %[file]: %[error]",
@"file", fileName,
@"error", error)];
return -1;
}
@try {
[output writeBuffer: buffer length: length];
} @catch (OFWriteFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror(e.errNo)
encoding: [OFLocale encoding]];
[of_stdout writeString: @"\r"];
[of_stderr writeLine: OF_LOCALIZED(@"failed_to_write_file",
@"Failed to write file %[file]: %[error]",
@"file", fileName,
@"error", error)];
return -1;
}
return length;
}
- (OFString *)safeLocalPathForPath: (OFString *)path
{
void *pool = objc_autoreleasePoolPush();
path = path.stringByStandardizingPath;
#if defined(OF_WINDOWS) || defined(OF_MSDOS)
if ([path containsString: @":"] || [path hasPrefix: @"\\"]) {
#elif defined(OF_AMIGAOS)
if ([path containsString: @":"] || [path hasPrefix: @"/"]) {
#else
if ([path hasPrefix: @"/"]) {
#endif
objc_autoreleasePoolPop(pool);
return nil;
}
if (path.length == 0) {
objc_autoreleasePoolPop(pool);
return nil;
}
/*
* After -[stringByStandardizingPath], everything representing parent
* directory should be at the beginning, so in theory checking the
* first component should be enough. But it does not hurt being
* paranoid and checking all components, just in case.
*/
for (OFString *component in path.pathComponents) {
#ifdef OF_AMIGAOS
if (component.length == 0 || [component isEqual: @"/"]) {
#else
if (component.length == 0 || [component isEqual: @".."]) {
#endif
objc_autoreleasePoolPop(pool);
return nil;
}
}
[path retain];
objc_autoreleasePoolPop(pool);
return [path autorelease];
}
@end