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/*************************************************************************
*
* HTCd - Copyright (C) 1998-2006 Henrik Rydberg
*
* 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
*/
#include <net/thrserv.h>
#include <errno.h>
const mstring cron_tag="\\run.cron";
const mstring FATAL="FATAL ERROR";
const mstring UNKNOWN="UNKNOWN";
const mstring REJECTED="REJECTED";
const int MAXHEAD=16384;
const int MAXBODY=2<<21;
const int MAXURI=4096;
const int MAXARG=4096;
const int SAFEZONE=4096;
///////////////////////////////////////////////////////////////
thrServ::thrServ(htcServ& server):
pmutex(MUTEX_INIT),
pcond(MTCOND_INIT),
keepalive(0),running(0),termok(0),
first(time(0)),last(time(0)),
serv(&server),
sock(0),
user(server.user,server.htcd.docroot)
{
}
thrServ::~thrServ()
{
delete sock;
}
void thrServ::reset(isocket* s,int keep)
{
keepalive=keep;
running=1;
termok=0;
first=time(0);
last=time(0);
sock=s;
while(!tid);
if(MCONTINUE(pcond)) throw((int)0);
}
void thrServ::Log(const sref& msg)
{
MLOCK(serv->htcd.mutex);
if(sock) serv->htcd.errlog<<"["<<time(0)<<"]["<<tid<<"]["
<<inet_ntoa(sock->address())<<":"<<sock->port()<<"]["
<<msg<<"]\n";
else serv->htcd.errlog<<"["<<time(0)<<"]["<<tid<<"]["<<msg<<"]\n";
serv->htcd.errlog.flush();
}
void thrServ::enter()
{
tid=pthread_self();
MSUSPEND(pmutex,pcond)
while(serv->htcd.running&&!termok) {
session();
delete sock;
sock=0;
if(serv->htcd.running&&!termok) {
MSUSPEND(pmutex,pcond)
}
}
}
void thrServ::session() try
{
int keep=1;
while(sock&&keep&&running) {
int test=sock->test();
if(test>0) { last=time(0); keep=handle(); }
else if(test<0) keep=0;
}
}
catch(const merror_t& e) {
Log(e.desc);
}
catch(...) {
Log(FATAL);
}
///////////////////////////////////////////////////////////////
thrCron::thrCron(htcServ& server):
tid(0),running(0),serv(&server),user(server.user,server.htcd.docroot)
{
}
void thrCron::Log(const sref& msg)
{
MLOCK(serv->htcd.mutex);
serv->htcd.errlog<<"["<<time(0)<<"][CRON]["<<msg<<"]\n";
serv->htcd.errlog.flush();
}
void thrCron::enter() try
{
tid=pthread_self();
tcpReq tcp; tcp.port=0;
httpReq req;
mstream devnull;
htcd_req R(serv->htcd,user.toks,devnull,tcp,req);
Env env(serv->htcd.ops,R,XSYSTEM);
env.req->running=&running;
running=1;
mstream m;
env.parse(m,cron_tag);
}
catch(const merror_t& e) {
Log(e.desc);
}
catch(...) {
Log(FATAL);
}
///////////////////////////////////////////////////////////////
int thrServ::handle()
{
tcpReq tcp;
tcp.port=sock->port();
if(!Lookup(tcp.node,sock->address())) {
Log(REJECTED);
return 0;
}
//////////////////////////////////////////////////////////////////
mstring buffer(MAXHEAD+MAXBODY+SAFEZONE);
int nhead=sock->gethead(buffer.data(),MAXHEAD);
if(nhead==0) return 0;
else if(nhead<0) return 0;
sref message(buffer.data(),nhead);
#if 0
static fp_stream merr(stderr);
merr<<"QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ\n";
merr<<message<<"\n";
merr<<"=====================================\n";
#endif
httpReq req(message);
//////////////////////////////////////////////////////////////////
int keep=keepalive;
if(!eqn(req.connect,keep_tag)) keep=0;
mswrite cache;
htcd_req R(serv->htcd,user.toks,cache,tcp,req);
//////////////////////////////////////////////////////////////////
if(nhead>=MAXHEAD) return SendStatus(*sock,R,keep,HTTP_413);
if(eqn(req.method,HTTP_TRACE)) {
R.resp.cont_type="message/http";
return SendStatus(*sock,R,keep,HTTP_200,buffer.left(nhead));
}
if(req.expect.nempty()) {
if(eqn(req.expect,expect_continue_tag)) SendStatus(*sock,R,keep,HTTP_100);
else return SendStatus(*sock,R,keep,HTTP_417);
}
if(req.trans_enc.nempty()||req.cont_enc.nempty()) return SendStatus(*sock,R,0,HTTP_501);
//////////////////////////////////////////////////////////////////
int ilength=atoi(req.cont_length);
if(ilength>MAXBODY) return SendStatus(*sock,R,0,HTTP_413);
else if(ilength>0) {
int nbody=sock->getbody(buffer.data()+nhead,ilength);
if(nbody<0) return 0;
else {
sref sbody(buffer.data()+nhead,nbody);
#if 0
static fp_stream merr(stderr);
merr<<"PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP\n";
merr<<sbody<<"\n";
merr<<"=====================================\n";
#endif
R.AddBody(sbody);
if(req.body.size()!=ilength) return 0;
}
}
//////////////////////////////////////////////////////////////////
if(eqn(req.method,HTTP_OPTIONS)) {
R.resp.allow="HEAD GET PUT POST DELETE";
return SendStatus(*sock,R,keep,HTTP_200);
}
//////////////////////////////////////////////////////////////////
if(req.cont_length.empty()&&(eqn(req.method,HTTP_PUT)||eqn(req.method,HTTP_POST)))
return SendStatus(*sock,R,0,HTTP_411);
if(eqn(req.method,HTTP_HEAD)||
eqn(req.method,HTTP_GET)||
eqn(req.method,HTTP_PUT)||
eqn(req.method,HTTP_DELETE)||
eqn(req.method,HTTP_POST)) {
R.resp.cont_type=mime_texthtml;
R.resp.cont_type_charset=mime_default;
try {
Env env(serv->htcd.ops,R,XSYSTEM);
env.req->running=&running;
mstream m;
env.parse(m,serv->server);
if(!env.req->is_running()) THROW("htc: "<<req.uri<<" ended prematurely; reload");
}
catch(const merror_t& e) {
Log(e.desc);
return SendStatus(*sock,R,0,HTTP_503,e.desc);
}
}
else return SendStatus(*sock,R,keep,HTTP_501);
if(!keepalive) keep=0;
if(req.if_mod.nempty()&&R.resp.lastmod.nempty()) {
time_t since=cvtTime(req.if_mod),lst=cvtTime(R.resp.lastmod);
if(lst<=since) return SendStatus(*sock,R,keep,HTTP_304);
}
mstring status=R.resp.status;
if(eqn(req.method,HTTP_HEAD)) return SendStatus(*sock,R,keep,status);
else return SendStatus(*sock,R,keep,status,cache.str());
}
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