fly/flightgear
1
0
Fork 0
Code Activity
flightgear/src/Network/httpd.cxx

246 lines
7.1 KiB
C++
Raw Normal View History

Initial revision.
2001-08-21 21:19:42 +00:00
// httpd.hxx -- FGFS http property manager interface / external script
// and control class
//
// Written by Curtis Olson, started June 2001.
//
// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/io/iochannel.hxx>
#include <simgear/math/sg_types.hxx>
#include <simgear/misc/props.hxx>
#include <stdlib.h> // atoi() atof()
#include STL_STRING
#include STL_STRSTREAM
#include <Main/fg_props.hxx>
#include <Main/globals.hxx>
#include "httpd.hxx"
SG_USING_STD(string);
#if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
SG_USING_STD(cout);
SG_USING_STD(istrstream);
#endif
bool FGHttpd::open() {
if ( is_enabled() ) {
SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
<< "is already in use, ignoring" );
return false;
}
server = new HttpdServer( port );
set_hz( 5 ); // default to processing requests @ 5Hz
set_enabled( true );
return true;
}
bool FGHttpd::process() {
netChannel::poll();
return true;
}
bool FGHttpd::close() {
delete server;
return true;
}
// Handle http GET requests
void HttpdChannel::foundTerminator (void) {
const string s = buffer.getData();
if ( s.find( "GET " ) == 0 ) {
printf("echo: %s\n", s.c_str());
string rest = s.substr(4);
string request;
string tmp;
unsigned int pos = rest.find( " " );
if ( pos != string::npos ) {
request = rest.substr( 0, pos );
} else {
request = "/";
}
SGPropertyNode *node = NULL;
pos = request.find( "?" );
if ( pos != string::npos ) {
// request to update property value
string args = request.substr( pos + 1 );
request = request.substr( 0, pos );
printf("'%s' '%s'\n", request.c_str(), args.c_str());
// parse args looking for "value="
bool done = false;
while ( ! done ) {
string arg;
pos = args.find("&");
if ( pos != string::npos ) {
arg = args.substr( 0, pos );
args = args.substr( pos + 1 );
} else {
arg = args;
done = true;
}
printf(" arg = %s\n", arg.c_str() );
unsigned int apos = arg.find("=");
if ( apos != string::npos ) {
string a = arg.substr( 0, apos );
string b = arg.substr( apos + 1 );
printf(" a = %s b = %s\n", a.c_str(), b.c_str() );
if ( a == "value" ) {
fgSetString( request, b );
}
}
}
}
node = globals->get_props()->getNode(request);
string response = "";
response += "<HTML LANG=\"en\">";
response += getTerminator();
response += "<HEAD>";
response += getTerminator();
response += "<TITLE>HUD - ";
response += request;
response += "</TITLE>";
response += getTerminator();
response += "</HEAD>";
response += getTerminator();
response += "<BODY>";
response += getTerminator();
Fix to check for nonexistant nodename requests.
2001-10-26 05:41:39 +00:00
if (node == NULL) {
response += "<H3>Non-existent node requested!</H3>";
response += getTerminator();
response += "<B>";
response += request.c_str();
response += "</B> does not exist.";
response += getTerminator();
} else if ( node->nChildren() > 0 ) {
Initial revision.
2001-08-21 21:19:42 +00:00
// request is a path with children
response += "<H3>Contents of \"";
response += request;
response += "\"</H3>";
response += getTerminator();
for (int i = 0; i < node->nChildren(); i++) {
SGPropertyNode *child = node->getChild(i);
string name = child->getName();
string line = "";
if ( child->nChildren() > 0 ) {
line += "<B><A HREF=\"";
line += request;
Addition Irix tweaks.
2001-10-24 22:06:47 +00:00
if ( request.substr(request.length() - 1, 1) != (string)"/" ) {
Initial revision.
2001-08-21 21:19:42 +00:00
line += "/";
}
line += name;
line += "\">";
line += name;
line += "</A></B>";
line += "/<BR>";
} else {
string value = node->getStringValue ( name, "" );
line += "<B>";
line += name;
line += "</B> <A HREF=\"";
line += request;
Addition Irix tweaks.
2001-10-24 22:06:47 +00:00
if ( request.substr(request.length() - 1, 1) != (string)"/" ) {
Initial revision.
2001-08-21 21:19:42 +00:00
line += "/";
}
line += name;
line += "\">(";
line += value;
line += ")</A><BR>";
}
response += line;
response += getTerminator();
}
} else {
// request for an individual data member
string value = node->getStringValue();
response += "<form method=\"GET\" action=\"";
response += request;
response += "\">";
response += "<B>";
response += request;
response += "</B> = ";
response += "<input type=text name=value size=\"5\" value=\"";
response += value;
response += "\" maxlength=2047>";
response += "<input type=submit value=\"update\" name=\"submit\">";
response += "<FORM>";
response += "<BR>";
}
response += "</BODY>";
response += getTerminator();
response += "</HTML>";
response += getTerminator();
push( "HTTP/1.1 200 OK" );
push( getTerminator() );
printf("size = %d\n", response.length());
char ctmp[256];
sprintf(ctmp, "Content-Length: %d", response.length());
push( ctmp );
push( getTerminator() );
push( "Connection: close" );
push( getTerminator() );
push( "Content-Type: text/html" );
push( getTerminator() );
push( getTerminator() );
push( response.c_str() );
}
buffer.remove();
}
Copy permalink