Diff: HTTPFile.h

Revision:

0:1855a008f28e

Child:

4:ab3092d15121

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HTTPFile.h	Thu Aug 16 15:49:19 2012 +0000
@@ -0,0 +1,81 @@
+/* HTTPFile.h */
+#ifndef HTTPFILE_H_
+#define HTTPFILE_H_
+
+#include "IHTTPData.h"
+#include "FATFileSystem.h"
+#include <string>
+
+using std::string;
+
+/** A data endpoint to store file
+*/
+class HTTPFile : public IHTTPDataIn, public IHTTPDataOut
+{
+public:
+    /** Create an HTTPFile instance for input
+     * @param path Path of file to store the incoming string
+     */
+    HTTPFile(const char* path);
+    
+    ~HTTPFile();
+    
+   /** Forces file closure
+    */
+    void clear();
+
+protected:
+    /** 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);
+    
+    /** 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);
+    
+    /** Get MIME type
+     * @param type Internet media type from Content-Type header
+     */
+    virtual int getDataType(char* type, size_t maxTypeLen); //Internet media type for Content-Type header
+    
+    /** Set MIME type
+     * @param type Internet media type from Content-Type header
+     */
+    virtual void setDataType(const char* type);
+    
+    /** Determine whether the HTTP client should chunk the data
+     *  Used for Transfer-Encoding header
+     */
+    virtual bool getIsChunked();
+    
+    /** Determine whether the data is chunked
+     *  Recovered from Transfer-Encoding header
+     */
+    virtual void setIsChunked(bool chunked);
+    
+    /** If the data is not chunked, get its size
+     *  Used for Content-Length header
+     */
+    virtual size_t getDataLen();
+    
+    /** If the data is not chunked, set its size
+     * From Content-Length header
+     */
+    virtual void setDataLen(size_t len);
+    
+private:
+    bool openFile(const char* mode); //true on success, false otherwise
+    void closeFile();
+    
+    FILE* m_fp;
+    string m_path;
+    size_t m_len;
+    bool m_chunked;
+};
+
+#endif /* HTTPFILE_H_ */