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/* Copyright (c) 2008 PrimeBase Technologies GmbH, Germany
*
* PrimeBase Media Stream for MySQL
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Original author: Paul McCullagh (H&G2JCtL)
* Continued development: Barry Leslie
*
* 2007-06-10
*
*
*/
#ifndef __CSHTTPSTREAM_H__
#define __CSHTTPSTREAM_H__
#include "CSDefs.h"
#include "CSStorage.h"
#include "CSStream.h"
// The http tags before and after the exception message text must be well defined so that
// the client api can parse the error reply and get the error text out.
#define EXCEPTION_REPLY_MESSAGE_PREFIX_TAG "<P><B>"
#define EXCEPTION_REPLY_MESSAGE_SUFFIX_TAG "</B></P><PRE>"
#define EXCEPTION_REPLY_STACK_TRACE_SUFFIX_TAG "</PRE><P><font size=-1>"
class CSHeader : public CSRefObject {
public:
CSHeader():iName(NULL), iValue(NULL) { }
virtual ~CSHeader();
void setName(const char *name);
void setName(const char *name, uint32_t len);
void setName(CSString *name);
void setValue(const char *value);
void setValue(const char *value, uint32_t len);
void setValue(CSString *value);
const char *getNameCString() { return iName ? iName->getCString() : ""; }
const char *getValueCString() { return iValue ? iValue->getCString() : ""; }
void write(CSOutputStream *out);
friend class CSHTTPHeaders;
private:
CSString *getName() { return iName; } // Return a none referenced object!!
CSString *getValue() { return iValue; }// Return a none referenced object!!
CSString *iName;
CSString *iValue;
};
class CSHTTPHeaders {
public:
CSHTTPHeaders(): iHeaders(NULL), iKeepAlive(false), iExpect100Continue(false), iUnknownEpectHeader(false) { }
virtual ~CSHTTPHeaders() { if (iHeaders) iHeaders->release();}
void clearHeaders();
CSVector * takeHeaders();
void setHeaders(CSVector *headers);
void addHeaders(CSHTTPHeaders *h);
void addHeader(CSHeader *h);
void addHeader(const char *name, const char *value);
void addHeader(const char *name, uint32_t nlen, const char *value, uint32_t vlen);
void addHeader(CSString *name, CSString *value);
void addHeader(const char *name, CSString *value);
void removeHeader(const char *name);
void removeHeader(CSString *name);
CSString *getHeaderValue(const char *name);
void writeHeader(CSOutputStream *out);
bool keepAlive();
bool expect100Continue();
bool unknownEpectHeader();
uint32_t numHeaders() { return (iHeaders)?iHeaders->size(): 0; }
CSHeader *getHeader(uint32_t idx)
{
CSHeader *header = NULL;
if (iHeaders)
header = (CSHeader *)(iHeaders->get(idx));
if (header)
header->retain();
return header;
}
private:
CSVector *iHeaders;
bool iKeepAlive;
bool iExpect100Continue;
bool iUnknownEpectHeader;
};
class CSHTTPInputStream : public CSInputStream, public CSHTTPHeaders {
public:
CSHTTPInputStream(CSInputStream *s);
virtual ~CSHTTPInputStream();
void readHead();
uint64_t getContentLength();
const char *getMethod();
int getStatus() { return iStatus; }
CSString *getStatusPhrase() { return iStatusPhrase; }
CSString *getRequestURI() { return iRequestURI; }
bool getRange(uint64_t *size, uint64_t *offset);
virtual void close();
virtual size_t read(char *b, size_t len);
virtual int read();
virtual int peek();
virtual void reset() {iInput->reset();}
static CSHTTPInputStream *newStream(CSInputStream* i);
private:
void freeHead();
// Request-Line = Method SP Request-URI SP HTTP-Version CRLF
CSInputStream *iInput;
int iStatus;
CSString *iMethod;
CSString *iRequestURI;
CSString *iHTTPVersion;
CSString *iStatusPhrase;
};
class CSHTTPOutputStream : public CSOutputStream, public CSHTTPHeaders {
public:
CSHTTPOutputStream(CSOutputStream* s);
virtual ~CSHTTPOutputStream();
void setStatus(int status) { iStatus = status; }
int getStatus() { return iStatus; }
void setContentLength(uint64_t size) { iContentLength = size; }
void setRange(uint64_t size, uint64_t offset, uint64_t total) { iRangeSize = size; iRangeOffset = offset; iTotalLength = total;}
void writeHead(); // Writes a standard HTTP header.
void writeHeaders(); // Write the current headers.
void clearBody();
void writeBody();
void appendBody(const char *str);
void appendBody(int value);
virtual void close();
virtual void write(const char *b, size_t len);
virtual const char *getEOL() { return "\r\n"; };
virtual void flush();
virtual void write(char b);
virtual void reset() {iOutput->reset();}
static const char *getReasonPhrase(int code);
static CSHTTPOutputStream *newStream(CSOutputStream* i);
private:
// Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF
CSOutputStream *iOutput;
int iStatus;
uint64_t iContentLength;
CSStringBuffer iBody;
uint64_t iRangeSize;
uint64_t iRangeOffset;
uint64_t iTotalLength;
};
#endif
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