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//
// WebSocketFragment.h
// UnittWebSocketClient
//
// Created by Josh Morris on 6/12/11.
// Copyright 2011 UnitT Software. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import <Foundation/Foundation.h>
enum
{
MessageOpCodeIllegal = -1,
MessageOpCodeContinuation = 0x0,
MessageOpCodeText = 0x1,
MessageOpCodeBinary = 0x2,
MessageOpCodeClose = 0x8,
MessageOpCodePing = 0x9,
MessageOpCodePong = 0xA
};
typedef NSInteger MessageOpCode;
enum
{
PayloadTypeUnknown = 0,
PayloadTypeText = 1,
PayloadTypeBinary = 2
};
typedef NSInteger PayloadType;
enum
{
PayloadLengthIllegal = -1,
PayloadLengthMinimum = 0,
PayloadLengthShort = 1,
PayloadLengthLong = 2
};
typedef NSInteger PayloadLength;
@interface WebSocketFragment : NSObject
{
BOOL isFinal;
int mask;
int payloadStart;
int payloadLength;
BOOL isRSV1;
BOOL isRSV2;
BOOL isRSV3;
PayloadType payloadType;
NSData* payloadData;
MessageOpCode opCode;
NSMutableData* fragment;
}
@property (nonatomic,assign) BOOL isFinal;
@property (nonatomic,readonly) BOOL hasMask;
@property (nonatomic,readonly) BOOL isControlFrame;
@property (nonatomic,readonly) BOOL isDataFrame;
@property (nonatomic,readonly) BOOL isValid;
@property (nonatomic,readonly) BOOL canBeParsed;
@property (nonatomic,readonly) BOOL isHeaderValid;
@property (nonatomic,assign) BOOL isRSV1;
@property (nonatomic,assign) BOOL isRSV2;
@property (nonatomic,assign) BOOL isRSV3;
@property (nonatomic,assign) int mask;
@property (nonatomic,assign) MessageOpCode opCode;
@property (nonatomic,retain) NSData* payloadData;
@property (nonatomic,assign) PayloadType payloadType;
@property (nonatomic,retain) NSMutableData* fragment;
@property (nonatomic,readonly) NSUInteger messageLength;
@property (nonatomic,readonly) int payloadLength;
@property (nonatomic,readonly) int payloadStart;
@property (nonatomic,readonly) BOOL isDataValid;
- (int) generateMask;
- (NSData*) mask:(int) aMask data:(NSData*) aData;
- (NSData*) mask:(int) aMask data:(NSData*) aData range:(NSRange) aRange;
- (void) maskInPlace:(int) aMask data:(NSMutableData*) aData range:(NSRange) aRange;
- (NSData*) unmask:(int) aMask data:(NSData*) aData;
- (NSData*) unmask:(int) aMask data:(NSData*) aData range:(NSRange) aRange;
- (void) unmaskInPlace:(int) aMask data:(NSMutableData*) aData range:(NSRange) aRange;
- (void) parseHeader;
- (BOOL) parseHeader:(NSData*) aData from:(NSUInteger) aOffset;
- (void) parseContent;
- (BOOL) parseContent:(NSData*) aData;
- (void) buildFragment;
+ (id) fragmentWithOpCode:(MessageOpCode) aOpCode isFinal:(BOOL) aIsFinal payload:(NSData*) aPayload;
+ (id) fragmentWithData:(NSData*) aData;
- (id) initWithOpCode:(MessageOpCode) aOpCode isFinal:(BOOL) aIsFinal payload:(NSData*) aPayload;
- (id) initWithData:(NSData*) aData;
@end
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