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mongodb/util/httpclient.cpp
2010-04-16 01:14:35 -04:00

151 lines
4.0 KiB
C++

// httpclient.cpp
/* Copyright 2009 10gen Inc.
*
* Licensed 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 "stdafx.h"
#include "httpclient.h"
#include "sock.h"
#include "message.h"
#include "builder.h"
namespace mongo {
//#define HD(x) cout << x << endl;
#define HD(x)
int HttpClient::get( string url , Result * result ){
return _go( "GET" , url , 0 , result );
}
int HttpClient::post( string url , string data , Result * result ){
return _go( "POST" , url , data.c_str() , result );
}
int HttpClient::_go( const char * command , string url , const char * body , Result * result ){
uassert( 10271 , "invalid url" , url.find( "http://" ) == 0 );
url = url.substr( 7 );
string host , path;
if ( url.find( "/" ) == string::npos ){
host = url;
path = "/";
}
else {
host = url.substr( 0 , url.find( "/" ) );
path = url.substr( url.find( "/" ) );
}
HD( "host [" << host << "]" );
HD( "path [" << path << "]" );
string server = host;
int port = 80;
string::size_type idx = host.find( ":" );
if ( idx != string::npos ){
server = host.substr( 0 , idx );
string t = host.substr( idx + 1 );
port = atoi( t.c_str() );
}
HD( "server [" << server << "]" );
HD( "port [" << port << "]" );
string req;
{
stringstream ss;
ss << command << " " << path << " HTTP/1.1\r\n";
ss << "Host: " << host << "\r\n";
ss << "Connection: Close\r\n";
ss << "User-Agent: mongodb http client\r\n";
if ( body ) {
ss << "Content-Length: " << strlen( body ) << "\r\n";
}
ss << "\r\n";
if ( body ) {
ss << body;
}
req = ss.str();
}
SockAddr addr( server.c_str() , port );
HD( "addr: " << addr.toString() );
MessagingPort p;
if ( ! p.connect( addr ) )
return -1;
{
const char * out = req.c_str();
int toSend = req.size();
p.send( out , toSend, "_go" );
}
char buf[4096];
int got = p.unsafe_recv( buf , 4096 );
buf[got] = 0;
int rc;
char version[32];
assert( sscanf( buf , "%s %d" , version , &rc ) == 2 );
HD( "rc: " << rc );
StringBuilder sb;
if ( result )
sb << buf;
while ( ( got = p.unsafe_recv( buf , 4096 ) ) > 0){
if ( result )
sb << buf;
}
if ( result ){
result->_init( rc , sb.str() );
}
return rc;
}
void HttpClient::Result::_init( int code , string entire ){
_code = code;
_entireResponse = entire;
while ( true ){
size_t i = entire.find( '\n' );
if ( i == string::npos ){
// invalid
break;
}
string h = entire.substr( 0 , i );
entire = entire.substr( i + 1 );
if ( h.size() && h[h.size()-1] == '\r' )
h = h.substr( 0 , h.size() - 1 );
if ( h.size() == 0 )
break;
}
_body = entire;
}
}