ObjFW  Diff

	size_t _URLIndex;
	int _errorCode;
	OFString *_outputPath, *_currentFileName;
	bool _continue, _force, _detectFileName, _detectFileNameRequest;
	bool _detectedFileName, _quiet, _verbose, _insecure, _ignoreStatus;
	bool _useUnicode;
	OFStream *_body;
	of_http_request_method_t _method;
	OFMutableDictionary *_clientHeaders;
	OFHTTPClient *_HTTPClient;
	char *_buffer;
	OFStream *_output;
	unsigned long long _received, _length, _resumedFrom;
	ProgressBar *_progressBar;
}

#ifdef OF_HAVE_PLUGINS
+ (void)initialize
{
	if (self != [OFHTTP class])
		return;

	/* Opportunistically try loading ObjOpenSSL and ignore any errors. */
	of_dlopen(@LIB_PREFIX @"objopenssl" @LIB_SUFFIX, OF_RTLD_LAZY);
}
#endif

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

	@try {
		_method = OF_HTTP_REQUEST_METHOD_GET;

		_clientHeaders = [[OFMutableDictionary alloc]
		    initWithObject: @"OFHTTP"
			    forKey: @"User-Agent"];

		_HTTPClient = [[OFHTTPClient alloc] init];
		_HTTPClient.delegate = self;

}

- (void)addHeader: (OFString *)header
{
	size_t pos = [header rangeOfString: @":"].location;
	OFString *name, *value;

	if (pos == OF_NOT_FOUND) {
		[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_header",
		    @"%[prog]: Headers must to be in format name:value!",
		    @"prog", [OFApplication programName])];
		[OFApplication terminateWithStatus: 1];
	}

	name = [header substringToIndex: pos]

- (void)setMethod: (OFString *)method
{
	void *pool = objc_autoreleasePoolPush();

	method = method.uppercaseString;

	@try {
		_method = of_http_request_method_from_string(method);
	} @catch (OFInvalidArgumentException *e) {
		[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_method",
		    @"%[prog]: Invalid request method %[method]!",
		    @"prog", [OFApplication programName],
		    @"method", method)];
		[OFApplication terminateWithStatus: 1];
	}

	objc_autoreleasePoolPop(pool);
}

- (void)setProxy: (OFString *)proxy
{
	@try {
		size_t pos = [proxy
		    rangeOfString: @":"
			  options: OF_STRING_SEARCH_BACKWARDS].location;
		OFString *host;
		unsigned long long port;

		if (pos == OF_NOT_FOUND)
			@throw [OFInvalidFormatException exception];

		host = [proxy substringToIndex: pos];
		port = [proxy substringFromIndex: pos + 1]
		    .unsignedLongLongValue;

		if (port > UINT16_MAX)

		[OFApplication terminateWithStatus: 1];
	}
}

- (void)applicationDidFinishLaunching
{
	OFString *outputPath;
	const of_options_parser_option_t options[] = {
		{ 'b', @"body",	1, NULL, NULL },
		{ 'c', @"continue", 0, &_continue, NULL },
		{ 'f', @"force", 0, &_force, NULL },
		{ 'h', @"help",	0, NULL, NULL },
		{ 'H', @"header", 1, NULL, NULL },
		{ 'm', @"method", 1, NULL, NULL },
		{ 'o', @"output", 1, NULL, &outputPath },
		{ 'O', @"detect-filename", 0, &_detectFileName, NULL },
		{ 'P', @"socks5-proxy", 1, NULL, NULL },
		{ 'q', @"quiet", 0, &_quiet, NULL },
		{ 'v', @"verbose", 0, &_verbose, NULL },
		{ '\0', @"insecure", 0, &_insecure, NULL },
		{ '\0', @"ignore-status", 0, &_ignoreStatus, NULL },
		{ '\0', nil, 0, NULL, NULL }
	};
	OFOptionsParser *optionsParser;
	of_unichar_t option;

#ifdef OF_HAVE_SANDBOX
	OFSandbox *sandbox = [OFSandbox sandbox];
	sandbox.allowsStdIO = true;
	sandbox.allowsReadingFiles = true;
	sandbox.allowsWritingFiles = true;
	sandbox.allowsCreatingFiles = true;

		    @"prog", [OFApplication programName])];
		[OFApplication terminateWithStatus: 1];
	}

	if (_insecure)
		_HTTPClient.allowsInsecureRedirects = true;

	_useUnicode = ([OFLocale encoding] == OF_STRING_ENCODING_UTF_8);

	[self performSelector: @selector(downloadNextURL) afterDelay: 0];
}

-    (void)client: (OFHTTPClient *)client
  didCreateSocket: (OFTCPSocket *)sock
	  request: (OFHTTPRequest *)request

			if (_ignoreStatus) {
				exception = nil;
				goto after_exception_handling;
			}

			statusCode = response.statusCode;
			codeString = [OFString stringWithFormat: @"%hd %@",
			    statusCode,
			    of_http_status_code_to_string(statusCode)];
			[of_stderr writeLine: OF_LOCALIZED(@"download_failed",
			    @"%[prog]: Failed to download <%[url]>!\n"
			    @"  HTTP status code: %[code]",
			    @"prog", [OFApplication programName],
			    @"url", request.URL.string,
			    @"code", codeString)];
		} else
			@throw exception;

		_errorCode = 1;
		[self performSelector: @selector(downloadNextURL)
			   afterDelay: 0];
		return;
	}

after_exception_handling:
	if (_method == OF_HTTP_REQUEST_METHOD_HEAD)
		goto next;

	if (_detectFileNameRequest) {
		_currentFileName = [fileNameFromContentDisposition(
		    [response.headers objectForKey: @"Content-Disposition"])
		    copy];
		_detectedFileName = true;

				[of_stdout writeFormat: @"⠒ %@", URL.string];
			else
				[of_stdout writeFormat: @"? %@", URL.string];
		}

		request = [OFHTTPRequest requestWithURL: URL];
		request.headers = clientHeaders;
		request.method = OF_HTTP_REQUEST_METHOD_HEAD;

		_detectFileNameRequest = true;
		[_HTTPClient asyncPerformRequest: request];
		return;
	}

	if (!_detectedFileName) {