int JNL_HTTPGet::run()
{
int cnt=0;
if (m_http_state==-1||!m_con) return -1; // error
run_again:
m_con->run();
if (m_con->get_state()==JNL_Connection::STATE_ERROR)
{
seterrstr(m_con->get_errstr());
return -1;
}
if (m_con->get_state()==JNL_Connection::STATE_CLOSED) return 1;
if (m_http_state==0) // connected, waiting for reply
{
if (m_con->recv_lines_available()>0)
{
char buf[4096];
m_con->recv_line(buf,4095);
buf[4095]=0;
m_reply=(char*)malloc(strlen(buf)+1);
strcpy(m_reply,buf);
int code=getreplycode();
if (code == 200 || code==206) m_http_state=2; // proceed to read headers normally
else if (code == 301 || code==302)
{
m_http_state=1; // redirect city
}
else
{
seterrstr(buf);
m_http_state=-1;
return -1;
}
cnt=0;
}
else if (!cnt++) goto run_again;
}
if (m_http_state == 1) // redirect
{
while (m_con->recv_lines_available() > 0)
{
char buf[4096];
m_con->recv_line(buf,4096);
if (!buf[0])
{
m_http_state=-1;
return -1;
}
if (!strnicmp(buf,"Location:",9))
{
char *p=buf+9; while (*p== ' ') p++;
if (*p)
{
connect(p);
return 0;
}
}
}
}
if (m_http_state==2)
{
if (!cnt++ && m_con->recv_lines_available() < 1) goto run_again;
while (m_con->recv_lines_available() > 0)
{
char buf[4096];
m_con->recv_line(buf,4096);
if (!buf[0]) { m_http_state=3; break; }
if (!m_recvheaders)
{
m_recvheaders_size=strlen(buf)+1;
m_recvheaders=(char*)malloc(m_recvheaders_size+1);
if (m_recvheaders)
{
strcpy(m_recvheaders,buf);
m_recvheaders[m_recvheaders_size]=0;
}
}
else
{
int oldsize=m_recvheaders_size;
m_recvheaders_size+=strlen(buf)+1;
char *n=(char*)malloc(m_recvheaders_size+1);
if (n)
{
memcpy(n,m_recvheaders,oldsize);
strcpy(n+oldsize,buf);
n[m_recvheaders_size]=0;
free(m_recvheaders);
m_recvheaders=n;
}
}
}
}
if (m_http_state==3)
{
}
return 0;
}
int JNL_HTTPGet::run()
{
int cnt=0;
if (m_http_state==-1||!m_con) return -1; // error
run_again:
m_con->run();
if (m_con->get_state()==JNL_Connection::STATE_ERROR)
{
seterrstr(m_con->get_errstr());
return -1;
}
if (m_con->get_state()==JNL_Connection::STATE_CLOSED) return 1;
if (m_http_state==0) // connected, waiting for reply
{
if (m_con->recv_lines_available()>0)
{
char buf[4096];
m_con->recv_line(buf,4095);
buf[4095]=0;
m_reply=(char*)malloc(strlen(buf)+1);
strcpy(m_reply,buf);
int code=getreplycode();
if (code == 200 || code==206 || code == 201) m_http_state=2; // proceed to read headers normally
else if (code == 301 || code==302)
{
m_http_state=1; // redirect city
}
else
{
seterrstr(buf);
m_http_state=-1;
m_boy_george = 0;
return -1;
}
cnt=0;
}
else if (!cnt++) goto run_again;
}
if (m_http_state == 1) // redirect
{
while (m_con->recv_lines_available() > 0)
{
char buf[4096];
m_con->recv_line(buf,4096);
if (!buf[0])
{
m_boy_george = 0;
m_http_state=-1;
return -1;
}
if (!strnicmp(buf,"Location:",9))
{
char *p=buf+9;
while (*p== ' ') p++;
if (*p)
{
free(m_http_redir_url);
if(m_boy_george > MAX_RECURSION_COUNT)
{
seterrstr(strdup("Too many redirects"));
m_http_state=-1;
return -1;
}
m_boy_george++;
if(strnicmp(p,"http:",strlen("http:")))
{
char *newp;
newp = (char*)malloc(strlen(p) + strlen("http://") + strlen(m_http_host) + 1);
newp[0] = 0;
strcat(newp,"http://");
strcat(newp,m_http_host);
strcat(newp,p);
m_http_redir_url = newp;
p = newp;
}
else
{
m_http_redir_url = strdup(p);
}
connect(p);
return 0;
}
}
}
}
if (m_http_state==2)
{
if (!cnt++ && m_con->recv_lines_available() < 1) goto run_again;
m_boy_george = 0;
while (m_con->recv_lines_available() > 0)
{
char buf[4096];
m_con->recv_line(buf,4096);
if (!buf[0]) {
m_http_state=3;
break;
}
if (!m_recvheaders)
{
m_recvheaders_size=strlen(buf)+1;
m_recvheaders=(char*)malloc(m_recvheaders_size+1);
if (m_recvheaders)
{
strcpy(m_recvheaders,buf);
m_recvheaders[m_recvheaders_size]=0;
}
}
else
{
int oldsize=m_recvheaders_size;
m_recvheaders_size+=strlen(buf)+1;
char *n=(char*)malloc(m_recvheaders_size+1);
if (n)
{
memcpy(n,m_recvheaders,oldsize);
strcpy(n+oldsize,buf);
n[m_recvheaders_size]=0;
free(m_recvheaders);
m_recvheaders=n;
}
}
}
}
if (m_http_state==3)
{
}
return 0;
}
