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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* server.cc
*
* Wed Aug 22 12:16:03 CEST 2007
* Copyright 2007 Bent Bisballe Nyeng, Lars Bisballe Jensen and Peter Skaarup
* deva@aasimon.org, elsenator@gmail.com and piparum@piparum.dk
****************************************************************************/
/*
* This file is part of Pracro.
*
* Pracro 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.
*
* Pracro 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 Pracro; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "server.h"
#include "tcpsocket.h"
#include <errno.h>
#include <stdlib.h>
// For fork
#include <sys/types.h>
#include <unistd.h>
#include "configuration.h"
#include "transaction.h"
#include "xmlparser.h"
#include "database.h"
#include "macro.h"
#include "macro_parser.h"
#include "resumeparser.h"
#include "tostring.h"
#include <time.h>
#include "journal_commit.h"
static void send_macro_widget(Widget &widget, TCPSocket &socket, std::string tabs)
{
socket.write(tabs + "<" + widget.type);
WidgetPropertyList::iterator p = widget.properties.begin();
while(p != widget.properties.end()) {
WidgetProperty &property = *p;
socket.write(" " + property.name + "=\"" + property.value + "\"");
p++;
}
socket.write(">\n");
WidgetList::iterator w = widget.widgets.begin();
while(w != widget.widgets.end()) {
send_macro_widget(*w, socket, tabs + " ");
w++;
}
socket.write(tabs + "</" + widget.type + ">\n");
}
static void connection(TCPSocket &socket)
{
printf("Got connection...\n");
Transaction transaction;
parse(socket, transaction);
socket.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
socket.write("<pracro version=\"1.0\">\n");
// Handle requests
Requests::iterator i = transaction.requests.begin();
while(i != transaction.requests.end()) {
Request request = *i;
printf("Handling request for \"%s\"...", request.macro.c_str());
Macro macro;
parse_macro(request.macro, macro);
WidgetList::iterator w = macro.widgets.begin();
while(w != macro.widgets.end()) {
send_macro_widget(*w, socket, " ");
w++;
}
printf("done.\n");
i++;
}
// Handle commits
if(transaction.commits.size() > 0) {
std::string now = toString((unsigned int)time(NULL));
Commits::iterator i = transaction.commits.begin();
while(i != transaction.commits.end()) {
Commit &commit = *i;
Database db;
db.post(transaction.user, transaction.cpr, now, commit);
Macro macro;
parse_macro(commit.macro, macro);
std::string resume = resume_parser(macro.format.c_str(), commit);
std::string journal_commit_addr = config()->lookup("journal_commit_addr");
int journal_commit_port = config()->lookup("journal_commit_port");
journal_commit(transaction.cpr.c_str(), transaction.user.c_str(),
journal_commit_addr.c_str(), journal_commit_port,
resume.c_str(), resume.length());
i++;
}
}
socket.write("</pracro>\n");
printf("Done with connection.\n");
}
void server()
{
int port;
try {
port = config()->lookup("port");
} catch( ... ) {
fprintf(stderr, "Could not read port.");
return;
}
TCPSocket *socket;
try {
socket = new TCPSocket();
socket->listen(port);
} catch (Exception &e) {
fprintf(stderr, "Error during parsing:\n%s\n",
e.what());
delete socket;
return;
}
while(socket->connected()) {
{ // Reload if new port i assigned.
int old_port = port;
try {
port = config()->lookup("port");
} catch( ... ) {
fprintf(stderr, "Could not read port.");
return;
}
if(port != old_port) {
// Start listening on the new port
delete socket;
socket = new TCPSocket();
socket->listen(port);
}
}
TCPSocket child = socket->accept();
if(child.connected()) {
switch(fork()) {
case -1: // error
fprintf(stderr, "Could not fork: %s\n", strerror(errno));
break;
case 0: // child
socket->disconnect();
connection(child);
delete socket;
return;
default: // parent
break;
}
}
}
delete socket;
fprintf(stderr, "Oups... dropped out of the main loop\n");
}
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