ObjFW  Diff

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfRangeException.h"
#import "OFTruncatedDataException.h"
#import "OFUnsupportedVersionException.h"

OFString *
of_http_status_code_to_string(short code)
{
	switch (code) {
	case 100:
		return @"Continue";
	case 101:
		return @"Switching Protocols";
	case 200:

	case 505:
		return @"HTTP Version Not Supported";
	default:
		return @"(unknown)";
	}
}

static of_string_encoding_t
encodingForContentType(OFString *contentType)
{
	const char *UTF8String = contentType.UTF8String;
	size_t last, length = contentType.UTF8StringLength;
	enum {
		STATE_TYPE,
		STATE_BEFORE_PARAM_NAME,
		STATE_PARAM_NAME,
		STATE_PARAM_VALUE_OR_QUOTE,
		STATE_PARAM_VALUE,
		STATE_PARAM_QUOTED_VALUE,
		STATE_AFTER_PARAM_VALUE
	} state = STATE_TYPE;
	OFString *name = nil, *value = nil, *charset = nil;
	of_string_encoding_t ret;

	last = 0;
	for (size_t i = 0; i < length; i++) {
		switch (state) {
		case STATE_TYPE:
			if (UTF8String[i] == ';') {
				state = STATE_BEFORE_PARAM_NAME;
				last = i + 1;
			}
			break;
		case STATE_BEFORE_PARAM_NAME:
			if (UTF8String[i] == ' ')
				last = i + 1;
			else {
				state = STATE_PARAM_NAME;
				i--;
			}
			break;
		case STATE_PARAM_NAME:
			if (UTF8String[i] == '=') {
				name = [OFString
				    stringWithUTF8String: UTF8String + last
						  length: i - last];

				state = STATE_PARAM_VALUE_OR_QUOTE;
				last = i + 1;
			}
			break;
		case STATE_PARAM_VALUE_OR_QUOTE:
			if (UTF8String[i] == '"') {
				state = STATE_PARAM_QUOTED_VALUE;
				last = i + 1;
			} else {
				state = STATE_PARAM_VALUE;
				i--;
			}
			break;
		case STATE_PARAM_VALUE:
			if (UTF8String[i] == ';') {
				value = [OFString
				    stringWithUTF8String: UTF8String + last
						  length: i - last];
				value =
				    value.stringByDeletingTrailingWhitespaces;

				if ([name isEqual: @"charset"])
					charset = value;

				state = STATE_BEFORE_PARAM_NAME;
				last = i + 1;
			}
			break;
		case STATE_PARAM_QUOTED_VALUE:
			if (UTF8String[i] == '"') {
				value = [OFString
				    stringWithUTF8String: UTF8String + last
						  length: i - last];

				if ([name isEqual: @"charset"])
					charset = value;

				state = STATE_AFTER_PARAM_VALUE;
			}
			break;
		case STATE_AFTER_PARAM_VALUE:
			if (UTF8String[i] == ';') {
				state = STATE_BEFORE_PARAM_NAME;
				last = i + 1;
			} else if (UTF8String[i] != ' ')
				return OF_STRING_ENCODING_AUTODETECT;
			break;
		}
	}
	if (state == STATE_PARAM_VALUE) {
		value = [OFString stringWithUTF8String: UTF8String + last
						length: length - last];
		value = value.stringByDeletingTrailingWhitespaces;

		if ([name isEqual: @"charset"])
			charset = value;
	}

	@try {
		ret = of_string_parse_encoding(charset);
	} @catch (OFInvalidArgumentException *e) {
		ret = OF_STRING_ENCODING_AUTODETECT;
	}

	return ret;
}

@implementation OFHTTPResponse
@synthesize statusCode = _statusCode, headers = _headers;

- (void)dealloc
{
	[_headers release];

	[super dealloc];
}

- (void)setProtocolVersion: (of_http_request_protocol_version_t)protocolVersion
{
	if (protocolVersion.major != 1 || protocolVersion.minor > 1)
		@throw [OFUnsupportedVersionException exceptionWithVersion:
		    [OFString stringWithFormat: @"%hhu.%hhu",
						protocolVersion.major,
						protocolVersion.minor]];

	_protocolVersion = protocolVersion;
}

- (of_http_request_protocol_version_t)protocolVersion
{
	return _protocolVersion;
}

- (void)setProtocolVersionString: (OFString *)string
{
	void *pool = objc_autoreleasePoolPush();
	OFArray *components = [string componentsSeparatedByString: @"."];
	unsigned long long major, minor;
	of_http_request_protocol_version_t protocolVersion;

	if (components.count != 2)
		@throw [OFInvalidFormatException exception];

	major = [components.firstObject unsignedLongLongValue];
	minor = [components.lastObject unsignedLongLongValue];

	return [OFString stringWithFormat: @"%hhu.%hhu",
					   _protocolVersion.major,
					   _protocolVersion.minor];
}

- (OFString *)string
{
	return [self stringWithEncoding: OF_STRING_ENCODING_AUTODETECT];
}

- (OFString *)stringWithEncoding: (of_string_encoding_t)encoding
{
	void *pool = objc_autoreleasePoolPush();
	OFString *contentType, *contentLengthString, *ret;
	OFData *data;

	if (encoding == OF_STRING_ENCODING_AUTODETECT &&
	    (contentType = [_headers objectForKey: @"Content-Type"]) != nil)
		encoding = encodingForContentType(contentType);

	if (encoding == OF_STRING_ENCODING_AUTODETECT)
		encoding = OF_STRING_ENCODING_UTF_8;

	data = [self readDataUntilEndOfStream];

	contentLengthString = [_headers objectForKey: @"Content-Length"];
	if (contentLengthString != nil) {
		unsigned long long contentLength =
		    contentLengthString.unsignedLongLongValue;