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/** @file
This file implements the functionality to test the Proxy
@section license License
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include <limits.h>
#include "Net.h"
#include "Disk.h"
#include "Main.h"
#include "HostDB.h"
#include "Cluster.h"
#include "OneWayTunnel.h"
#include "OneWayMultiTunnel.h"
#include "Cache.h"
struct TestProxy : Continuation {
VConnection *vc;
VConnection *vconnection_vector[2];
VConnection *remote;
MIOBuffer *inbuf;
MIOBuffer *outbuf;
VIO *clusterOutVIO;
VIO *inVIO;
char host[1024], *url, *url_end, amode;
int port;
char s[1024];
ClusterVCToken token;
OneWayTunnel *tunnel;
char url_str[1024];
VConnection *cachefile;
URL *url_struct;
HostDBInfo *hostdbinfo;
CacheObjInfo *objinfo;
HttpHeader *request_header;
int
done()
{
ink_assert(inbuf);
if (inbuf)
free_MIOBuffer(inbuf);
inbuf = 0;
if (outbuf)
free_MIOBuffer(outbuf);
if (vc)
vc->do_io(VIO::CLOSE);
if (remote)
remote->do_io(VIO::CLOSE);
if (cachefile)
cachefile->do_io(VIO::CLOSE);
if (tunnel)
delete tunnel;
delete this;
return EVENT_DONE;
}
int
gets(VIO *vio)
{
char *sx = s, *x;
int t, i;
for (x = vio->buffer.mbuf->start; *x && x < vio->buffer.mbuf->end; x++) {
if (x - vio->buffer.mbuf->start > 1023)
return -1;
if (*x == '\n')
break;
*sx++ = *x;
}
t = 2;
for (i = 0; t && s[i]; i++) {
if (s[i] == ' ')
--t;
}
// i = strrchr(s,' ');
if (s[i - 2] == 'X') {
i -= 2;
amode = 'x';
while (s[i] != '\0') {
s[i] = s[i + 1];
++i;
}
return x - vio->buffer.mbuf->start - 1;
}
return x - vio->buffer.mbuf->start;
}
int
startEvent(int event, VIO *vio)
{
char *temp;
if (event != VC_EVENT_READ_READY) {
printf("TestProxy startEvent error %d %X\n", event, (unsigned int)vio->vc_server);
return done();
}
inVIO = vio;
vc = (NetVConnection *)vio->vc_server;
int res = 0;
char *thost = NULL;
if ((res = gets(vio))) {
if (res < 0) {
printf("TestProxy startEvent line too long\n");
return done();
}
// for (int i = 0; i <= res; i++) fprintf(stderr,"[%c (%d)]\n",s[i],s[i]);
s[res] = 0;
if ((res > 0) && (s[res - 1] == '\r'))
s[res - 1] = 0;
// printf("got [%s]\n",s);
if (s[4] == '/') {
url = s + 5;
url_end = strchr(url, ' ');
*url_end = 0;
SET_HANDLER(fileEvent);
diskProcessor.open_vc(this, url, O_RDONLY);
return EVENT_DONE;
} else
thost = s + 11; // GET http
url = strchr(thost, '/'); // done before portStr stompage */
temp = strchr(thost, ' ');
ink_assert(temp - thost < 1024);
ink_strlcpy(url_str, thost, sizeof(url_str));
if (!url)
return done();
char *portStr = strchr(thost, ':');
*url = 0;
if (portStr == NULL) {
port = 80;
ink_strlcpy(host, thost, sizeof(host));
} else {
*portStr = '\0'; /* close off the hostname */
port = atoi(portStr + 1);
ink_strlcpy(host, thost, sizeof(host));
*portStr = ':';
}
url_end = strchr(url + 1, ' ');
SET_HANDLER(dnsEvent);
*url = '/';
hostDBProcessor.getbyname(this, host);
return EVENT_DONE;
}
return EVENT_CONT;
}
int
clusterOpenEvent(int event, void *data)
{
if (event == CLUSTER_EVENT_OPEN_FAILED)
return done();
if (event == CLUSTER_EVENT_OPEN) {
if (!data)
return done();
remote = (VConnection *)data;
clusterOutVIO = remote->do_io(VIO::WRITE, this, INT64_MAX, inbuf);
ink_assert(clusterOutVIO);
SET_HANDLER(tunnelEvent);
tunnel = new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
}
return EVENT_CONT;
}
int
clusterEvent(int event, VConnection *data)
{
(void)event;
vc = data;
if (!vc)
return done();
SET_HANDLER(startEvent);
vc->do_io(VIO::READ, this, INT64_MAX, inbuf);
return EVENT_CONT;
}
int
fileEvent(int event, DiskVConnection *aremote)
{
if (event != DISK_EVENT_OPEN) {
printf("TestProxy fileEvent error %d\n", event);
return done();
}
remote = aremote;
SET_HANDLER(tunnelEvent);
tunnel = new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
return EVENT_CONT;
}
int
dnsEvent(int event, HostDBInfo *info)
{
if (!info) {
printf("TestProxy dnsEvent error %d\n", event);
return done();
}
SET_HANDLER(cacheCheckEvent);
url_struct = new URL((const char *)url_str, sizeof(url_str), true);
hostdbinfo = info;
cacheProcessor.lookup(this, url_struct, false);
// SET_HANDLER(connectEvent);
// netProcessor.connect(this,info->ip,port,host);
return EVENT_DONE;
}
int
cacheCheckEvent(int event, void *data)
{
if (event == CACHE_EVENT_LOOKUP) {
if (amode == 'x') {
cout << "Removing object from the cache\n";
SET_HANDLER(NULL);
amode = 0;
cacheProcessor.remove(&(((CacheObjInfoVector *)data)->data[0]), false);
return done();
} else {
cout << "Serving the object from cache\n";
SET_HANDLER(cacheReadEvent);
cacheProcessor.open_read(this, &(((CacheObjInfoVector *)data)->data[0]), false);
return EVENT_CONT;
}
} else if (event == CACHE_EVENT_LOOKUP_FAILED) {
cout << "Getting the object from origin server\n";
SET_HANDLER(cacheCreateCacheFileEvent);
objinfo = new CacheObjInfo;
request_header = new HttpHeader;
request_header->m_url = *url_struct;
objinfo->request = *request_header;
cacheProcessor.open_write(this, objinfo, false, CACHE_UNKNOWN_SIZE);
return EVENT_DONE;
} else {
printf("TestProxy cacheCheckEvent error %d\n", event);
return done();
}
}
int
cacheReadEvent(int event, DiskVConnection *aremote)
{
if (event != CACHE_EVENT_OPEN_READ) {
printf("TestProxy cacheReadEvent error %d\n", event);
return done();
}
remote = aremote;
SET_HANDLER(tunnelEvent);
new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
return EVENT_CONT;
}
int
cacheCreateCacheFileEvent(int event, VConnection *acachefile)
{
if (event != CACHE_EVENT_OPEN_WRITE) {
printf("TestProxy cacheCreateCacheFileEvent error %d\n", event);
cachefile = 0;
} else
cachefile = acachefile;
SET_HANDLER(cacheSendGetEvent);
netProcessor.connect(this, hostdbinfo->ip, port, host);
return EVENT_CONT;
}
int
cacheSendGetEvent(int event, NetVConnection *aremote)
{
if (event != NET_EVENT_OPEN) {
printf("TestProxy cacheSendGetEvent error %d\n", event);
return done();
}
remote = aremote;
outbuf = new_MIOBuffer();
SET_HANDLER(cacheTransRemoteToCacheFileEvent);
// aremote->set_inactivity_timeout(HRTIME_MSECONDS(2000));
// aremote->set_active_timeout(HRTIME_MSECONDS(60000));
*url_end = 0;
sprintf(outbuf->start, "GET %s HTTP/1.0\nHost: %s\n\n", url, host);
outbuf->fill(strlen(outbuf->start) + 1);
remote->do_io(VIO::WRITE, this, INT64_MAX, outbuf);
// printf("sending [%s]\n",outbuf->start);
return EVENT_CONT;
}
int
cacheTransRemoteToCacheFileEvent(int event, VIO *vio)
{
if (event != VC_EVENT_WRITE_READY) {
printf("TestProxy cacheTransRemoteToCacheFileEvent error %d\n", event);
return done();
}
if (vio->buffer.size())
return EVENT_CONT;
SET_HANDLER(tunnelEvent);
vconnection_vector[0] = vc;
vconnection_vector[1] = cachefile;
{
int n = cachefile ? 2 : 1;
cachefile = 0;
new OneWayMultiTunnel(remote, vconnection_vector, n, this, TUNNEL_TILL_DONE, true, true, true);
}
return EVENT_DONE;
}
int
connectEvent(int event, NetVConnection *aremote)
{
if (event != NET_EVENT_OPEN) {
printf("TestProxy connectEvent error %d\n", event);
return done();
}
remote = aremote;
outbuf = new_MIOBuffer();
SET_HANDLER(sendEvent);
*url_end = 0;
sprintf(outbuf->start, "GET %s HTTP/1.0\nHost: %s\n\n", url, host);
outbuf->fill(strlen(outbuf->start) + 1);
remote->do_io(VIO::WRITE, this, INT64_MAX, outbuf);
// printf("sending [%s]\n",outbuf->start);
return EVENT_CONT;
}
int
sendEvent(int event, VIO *vio)
{
if (event != VC_EVENT_WRITE_READY) {
printf("TestProxy sendEvent error %d\n", event);
return done();
}
if (vio->buffer.size())
return EVENT_CONT;
SET_HANDLER(tunnelEvent);
clusterOutVIO = (VIO *)-1; // some impossible value
if (((NetVConnectionBase *)vc)->closed) {
printf("TestProxy sendEvent unexpected close %X\n", (unsigned int)vc);
vc = 0;
return done();
}
tunnel = new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
return EVENT_DONE;
}
int
tunnelEvent(int event, Continuation *cont)
{
(void)cont;
if ((VIO *)cont == clusterOutVIO || (VIO *)cont == inVIO) {
if (event == VC_EVENT_WRITE_COMPLETE)
return EVENT_DONE;
if (event == VC_EVENT_ERROR || event == VC_EVENT_EOS)
return EVENT_DONE;
return EVENT_CONT;
}
remote = 0;
vc = 0;
if (event != VC_EVENT_EOS) {
printf("TestProxy sendEvent error %d\n", event);
return done();
}
// printf("successful proxy of %s\n",url);
return done();
}
TestProxy(MIOBuffer *abuf)
: Continuation(new_ProxyMutex()),
vc(0),
remote(0),
inbuf(abuf),
outbuf(0),
clusterOutVIO(0),
inVIO(0),
url(0),
url_end(0),
amode(0),
tunnel(0),
cachefile(0)
{
SET_HANDLER(startEvent);
}
};
struct TestAccept : Continuation {
int
startEvent(int event, NetVConnection *e)
{
if (event == NET_EVENT_ACCEPT) {
MIOBuffer *buf = new_MIOBuffer();
e->do_io(VIO::READ, new TestProxy(buf), INT64_MAX, buf);
} else {
printf("TestAccept error %d\n", event);
return EVENT_DONE;
}
return EVENT_CONT;
}
TestAccept() : Continuation(new_ProxyMutex()) { SET_HANDLER(startEvent); }
};
void
redirect_test(Machine *m, void *data, int len)
{
(void)m;
(void)len;
MIOBuffer *buf = new_MIOBuffer();
TestProxy *c = new TestProxy(buf);
SET_CONTINUATION_HANDLER(c, clusterEvent);
clusterProcessor.connect(c, *(ClusterVCToken *)data);
}
#ifndef SUB_TEST
void
test()
{
ptest_ClusterFunction = redirect_test;
netProcessor.proxy_accept(new TestAccept);
}
#endif
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