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#ifndef _HEADER_H
#define _HEADER_H
#include <string>
#include <unordered_set>
#include <map>
#include "meta.h"
namespace acng
{
class header {
public:
enum eHeadType : char
{
INVALID,
HEAD,
GET,
POST,
CONNECT,
ANSWER
};
enum eHeadPos : char
{
CONNECTION, // 0
CONTENT_LENGTH,
IF_MODIFIED_SINCE,
RANGE,
IFRANGE, // 4
CONTENT_RANGE,
LAST_MODIFIED,
PROXY_CONNECTION,
TRANSFER_ENCODING,
XORIG,
AUTHORIZATION, // 10
XFORWARDEDFOR,
LOCATION,
CONTENT_TYPE,
// unreachable entry and size reference
HEADPOS_MAX,
HEADPOS_NOTFORUS
};
#define ACNGFSMARK XORIG
eHeadType type = INVALID;
mstring frontLine;
char *h[HEADPOS_MAX] = {0};
inline header(){};
~header();
header(const header &);
header& operator=(const header&);
static mstring GenInfoHeaders();
static bool ParseDate(const char *, struct tm*);
int LoadFromFile(const mstring & sPath);
//! returns byte count or negative errno value
int StoreToFile(cmstring &sPath) const;
void set(eHeadPos, const mstring &value);
void set(eHeadPos, const char *val);
void set(eHeadPos, const char *s, size_t len);
void set(eHeadPos, off_t nValue);
void prep(eHeadPos, size_t length);
void del(eHeadPos);
inline void copy(const header &src, eHeadPos pos) { set(pos, src.h[pos]); };
inline const char * getCodeMessage() const {
return frontLine.length()>9 ? frontLine.c_str()+9 : "";
}
inline int getStatus() const { int r=atoi(getCodeMessage()); return r ? r : 500; }
void clear();
tSS ToString() const;
static std::vector<tPtrLen> GetKnownHeaders();
/**
* Read buffer to parse one string. Optional offset where to begin to
* scan.
*
* @param src Pointer to raw input
* @param length Maximum considered input length
* @param unkFunc Optional callback for ignored headers (called with key name and rest of the line including CRLF)
* @return Length of processed data,
* 0: incomplete, needs more data
* <0: error
* >0: length of the processed data
*/
// XXX: maybe redesign the unkFunc to just use pointer and length instead of strings
int Load(const char *src, unsigned length, const std::function<void(cmstring&, cmstring&)> &unkFunc = std::function<void(cmstring&, cmstring&)>());
};
inline bool BODYFREECODE(int status)
{
// no response if not-modified or similar, following http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.4
return (304 == status || (status>=100 && status<200) || 204==status);
}
}
#endif
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