113 lines
4.0 KiB
C++
Executable File
113 lines
4.0 KiB
C++
Executable File
/*
|
|
** JNetLib
|
|
** Copyright (C) 2000-2001 Nullsoft, Inc.
|
|
** Author: Justin Frankel
|
|
** File: httpget.h - JNL interface for doing HTTP GETs.
|
|
** License: see jnetlib.h
|
|
**
|
|
** Usage:
|
|
** 1. Create a JNL_HTTPGet object, optionally specifying a JNL_AsyncDNS
|
|
** object to use (or NULL for none, or JNL_CONNECTION_AUTODNS for auto),
|
|
** and the receive buffer size, and a string specifying proxy (or NULL
|
|
** for none). See note on proxy string below.
|
|
** 2. call addheader() to add whatever headers you want. It is recommended to
|
|
** add at least the following two:
|
|
** addheader("User-Agent:MyApp (Mozilla)");
|
|
*/// addheader("Accept:*/*");
|
|
/* ( the comment weirdness is there so I Can do the star-slash :)
|
|
** 3. Call connect() with the URL you wish to GET (see URL string note below)
|
|
** 4. Call run() once in a while, checking to see if it returns -1
|
|
** (if it does return -1, call geterrorstr() to see what the error is).
|
|
** (if it returns 1, no big deal, the connection has closed).
|
|
** 5. While you're at it, you can call bytes_available() to see if any data
|
|
** from the http stream is available, or getheader() to see if any headers
|
|
** are available, or getreply() to see the HTTP reply, or getallheaders()
|
|
** to get a double null terminated, null delimited list of headers returned.
|
|
** 6. If you want to read from the stream, call get_bytes (which returns how much
|
|
** was actually read).
|
|
** 7. content_length() is a helper function that uses getheader() to check the
|
|
** content-length header.
|
|
** 8. Delete ye' ol' object when done.
|
|
**
|
|
** Proxy String:
|
|
** should be in the format of host:port, or user@host:port, or
|
|
** user:password@host:port. if port is not specified, 80 is assumed.
|
|
** URL String:
|
|
** should be in the format of http://user:pass@host:port/requestwhatever
|
|
** note that user, pass, port, and /requestwhatever are all optional :)
|
|
** note that also, http:// is really not important. if you do poo://
|
|
** or even leave out the http:// altogether, it will still work.
|
|
*/
|
|
|
|
#ifndef _HTTPGET_H_
|
|
#define _HTTPGET_H_
|
|
|
|
#include "connection.h"
|
|
|
|
class JNL_HTTPGet
|
|
{
|
|
public:
|
|
JNL_HTTPGet(JNL_AsyncDNS *dns=JNL_CONNECTION_AUTODNS, int recvbufsize=16384, char *proxy=NULL);
|
|
~JNL_HTTPGet();
|
|
|
|
void addheader(const char *header);
|
|
|
|
void connect(const char *url, int ver=0, char *requestmethod="GET");
|
|
|
|
int run(); // returns: 0 if all is OK. -1 if error (call geterrorstr()). 1 if connection closed.
|
|
|
|
int get_status(); // returns 0 if connecting, 1 if reading headers,
|
|
// 2 if reading content, -1 if error.
|
|
|
|
char *getallheaders(); // double null terminated, null delimited list
|
|
char *getheader(char *headername);
|
|
char *getreply() { return m_reply; }
|
|
int getreplycode(); // returns 0 if none yet, otherwise returns http reply code.
|
|
|
|
char *geterrorstr() { return m_errstr;}
|
|
|
|
char *getredirurl();
|
|
|
|
int bytes_available();
|
|
int get_bytes(char *buf, int len);
|
|
int peek_bytes(char *buf, int len);
|
|
|
|
int content_length() { char *p=getheader("content-length"); if (p) return atoi(p); return 0; }
|
|
|
|
JNL_Connection *get_con() { return m_con; }
|
|
|
|
protected:
|
|
void reinit();
|
|
void deinit();
|
|
void seterrstr(char *str) { if (m_errstr) free(m_errstr); m_errstr=(char*)malloc(strlen(str)+1); strcpy(m_errstr,str); }
|
|
|
|
void do_parse_url(char *url, char **host, int *port, char **req, char **lp);
|
|
void do_encode_mimestr(char *in, char *out);
|
|
|
|
JNL_AsyncDNS *m_dns;
|
|
JNL_Connection *m_con;
|
|
int m_recvbufsize;
|
|
|
|
int m_http_state;
|
|
|
|
int m_http_port;
|
|
char *m_http_url;
|
|
char *m_http_redir_url;
|
|
char *m_http_host;
|
|
char *m_http_lpinfo;
|
|
char *m_http_request;
|
|
|
|
char *m_http_proxylpinfo;
|
|
char *m_http_proxyhost;
|
|
int m_http_proxyport;
|
|
|
|
char *m_sendheaders;
|
|
char *m_recvheaders;
|
|
int m_recvheaders_size;
|
|
char *m_reply;
|
|
|
|
char *m_errstr;
|
|
};
|
|
|
|
#endif // _HTTPGET_H_
|