HttpStream.h

00001 
00002 /*
00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
00004  
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011  
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014  
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00021 THE SOFTWARE.
00022 */
00023 
00024 #ifndef HTTP_STREAM_H
00025 #define HTTP_STREAM_H
00026 
00027 #include "../HttpData.h"
00028 #include "mbed.h"
00029 
00030 typedef uint8_t byte;
00031 
00032 class HttpStream : public HttpData //Streaming buf
00033 {
00034 public:
00035   HttpStream();
00036   virtual ~HttpStream();
00037   
00038   void readNext(byte* buf, int size);
00039   
00040   bool readable();
00041   
00042   int readLen();
00043   
00044   virtual void clear();
00045       
00046 protected:
00047   virtual int read(char* buf, int len);
00048   virtual int write(const char* buf, int len);
00049   
00050   virtual string getDataType(); //Internet media type for Content-Type header
00051   virtual void setDataType(const string& type); //Internet media type from Content-Type header
00052 
00053   virtual bool getIsChunked(); //For Transfer-Encoding header
00054   virtual void setIsChunked(bool chunked); //From Transfer-Encoding header
00055   
00056   virtual int getDataLen(); //For Content-Length header
00057   virtual void setDataLen(int len); //From Content-Length header, or if the transfer is chunked, next chunk length
00058   
00059 private:
00060   byte* m_buf;
00061   int m_size; //Capacity
00062   int m_len; //Length
00063 };
00064 
00065 #endif