HTTPClient

Fork of HTTPClient by Donatien Garnier

IHTTPData.h

Committer:
donatien
Date:
2012-04-26
Revision:
0:2ccb9960a044
Child:
10:e1351de84c16

File content as of revision 0:2ccb9960a044:

/* IHTTPData.h */
/*
Copyright (C) 2012 ARM Limited.

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

#ifndef IHTTPDATA_H
#define IHTTPDATA_H

///This is a simple interface for HTTP data storage (impl examples are Key/Value Pairs, File, etc...)
class IHTTPDataOut
{
protected:
  friend class HTTPClient;

  /** Read a piece of data to be transmitted
   * @param buf Pointer to the buffer on which to copy the data
   * @param len Length of the buffer
   * @param pReadLen Pointer to the variable on which the actual copied data length will be stored
   */
  virtual int read(char* buf, size_t len, size_t* pReadLen) = 0;
  
  /** Get MIME type
   * @param type Internet media type from Content-Type header
   */
  virtual int getDataType(char* type, size_t maxTypeLen) = 0; //Internet media type for Content-Type header
  
  /** Determine whether the HTTP client should chunk the data
   *  Used for Transfer-Encoding header
   */
  virtual bool getIsChunked() = 0;
  
  /** If the data is not chunked, get its size
   *  Used for Content-Length header
   */
  virtual size_t getDataLen() = 0;

};

///This is a simple interface for HTTP data storage (impl examples are Key/Value Pairs, File, etc...)
class IHTTPDataIn
{
protected:
  friend class HTTPClient;

  /** Write a piece of data transmitted by the server
   * @param buf Pointer to the buffer from which to copy the data
   * @param len Length of the buffer
   */
  virtual int write(const char* buf, size_t len) = 0;

  /** Set MIME type
   * @param type Internet media type from Content-Type header
   */
  virtual void setDataType(const char* type) = 0;

  /** Determine whether the data is chunked
   *  Recovered from Transfer-Encoding header
   */
  virtual void setIsChunked(bool chunked) = 0;
  
  /** If the data is not chunked, set its size
   * From Content-Length header
   */
  virtual void setDataLen(size_t len) = 0;

};

#endif