215 lines
4.7 KiB
C
215 lines
4.7 KiB
C
/*
|
|
* Copyright (C) 2007 Martin Willi
|
|
* Hochschule fuer Technik Rapperswil
|
|
*
|
|
* 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. See <http://www.fsf.org/copyleft/gpl.txt>.
|
|
*
|
|
* 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.
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#define _GNU_SOURCE
|
|
|
|
#include "session.h"
|
|
|
|
#include <string.h>
|
|
#include <fcgiapp.h>
|
|
#include <stdio.h>
|
|
|
|
#include <utils/linked_list.h>
|
|
|
|
typedef struct private_session_t private_session_t;
|
|
|
|
/**
|
|
* private data of the task manager
|
|
*/
|
|
struct private_session_t {
|
|
|
|
/**
|
|
* public functions
|
|
*/
|
|
session_t public;
|
|
|
|
/**
|
|
* session ID
|
|
*/
|
|
char *sid;
|
|
|
|
/**
|
|
* list of controller instances controller_t
|
|
*/
|
|
linked_list_t *controllers;
|
|
|
|
/**
|
|
* list of filter instances filter_t
|
|
*/
|
|
linked_list_t *filters;
|
|
|
|
/**
|
|
* user defined session context
|
|
*/
|
|
context_t *context;
|
|
};
|
|
|
|
/**
|
|
* Implementation of session_t.add_controller.
|
|
*/
|
|
static void add_controller(private_session_t *this, controller_t *controller)
|
|
{
|
|
this->controllers->insert_last(this->controllers, controller);
|
|
}
|
|
|
|
/**
|
|
* Implementation of session_t.add_filter.
|
|
*/
|
|
static void add_filter(private_session_t *this, filter_t *filter)
|
|
{
|
|
this->filters->insert_last(this->filters, filter);
|
|
}
|
|
|
|
/**
|
|
* Create a session ID and a cookie
|
|
*/
|
|
static void create_sid(private_session_t *this, request_t *request)
|
|
{
|
|
char buf[16];
|
|
chunk_t chunk = chunk_from_buf(buf);
|
|
rng_t *rng;
|
|
|
|
rng = lib->crypto->create_rng(lib->crypto, RNG_WEAK);
|
|
if (rng)
|
|
{
|
|
rng->get_bytes(rng, sizeof(buf), buf);
|
|
this->sid = chunk_to_hex(chunk, FALSE);
|
|
request->add_cookie(request, "SID", this->sid);
|
|
rng->destroy(rng);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* run all registered filters
|
|
*/
|
|
static bool run_filter(private_session_t *this, request_t *request,
|
|
controller_t *controller)
|
|
{
|
|
iterator_t *iterator;
|
|
filter_t *filter;
|
|
|
|
iterator = this->filters->create_iterator(this->filters, TRUE);
|
|
while (iterator->iterate(iterator, (void**)&filter))
|
|
{
|
|
if (!filter->run(filter, request, controller))
|
|
{
|
|
iterator->destroy(iterator);
|
|
return FALSE;
|
|
}
|
|
}
|
|
iterator->destroy(iterator);
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Implementation of session_t.process.
|
|
*/
|
|
static void process(private_session_t *this, request_t *request)
|
|
{
|
|
char *pos, *start, *param[6] = {NULL, NULL, NULL, NULL, NULL, NULL};
|
|
iterator_t *iterator;
|
|
bool handled = FALSE;
|
|
controller_t *current;
|
|
int i = 0;
|
|
|
|
if (this->sid == NULL)
|
|
{
|
|
create_sid(this, request);
|
|
}
|
|
|
|
start = request->get_path(request);
|
|
if (start)
|
|
{
|
|
if (*start == '/') start++;
|
|
while ((pos = strchr(start, '/')) != NULL && i < 5)
|
|
{
|
|
param[i++] = strndup(start, pos - start);
|
|
start = pos + 1;
|
|
}
|
|
param[i] = strdup(start);
|
|
iterator = this->controllers->create_iterator(this->controllers, TRUE);
|
|
while (iterator->iterate(iterator, (void**)¤t))
|
|
{
|
|
if (streq(current->get_name(current), param[0]))
|
|
{
|
|
if (run_filter(this, request, current))
|
|
{
|
|
current->handle(current, request, param[1], param[2],
|
|
param[3], param[4], param[5]);
|
|
handled = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
iterator->destroy(iterator);
|
|
for (i = 0; i < 6; i++)
|
|
{
|
|
free(param[i]);
|
|
}
|
|
}
|
|
if (!handled)
|
|
{
|
|
if (this->controllers->get_first(this->controllers,
|
|
(void**)¤t) == SUCCESS)
|
|
{
|
|
request->redirect(request, current->get_name(current));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of session_t.get_sid.
|
|
*/
|
|
static char* get_sid(private_session_t *this)
|
|
{
|
|
return this->sid;
|
|
}
|
|
|
|
/**
|
|
* Implementation of session_t.destroy
|
|
*/
|
|
static void destroy(private_session_t *this)
|
|
{
|
|
this->controllers->destroy_offset(this->controllers, offsetof(controller_t, destroy));
|
|
this->filters->destroy_offset(this->filters, offsetof(filter_t, destroy));
|
|
if (this->context) this->context->destroy(this->context);
|
|
free(this->sid);
|
|
free(this);
|
|
}
|
|
|
|
/*
|
|
* see header file
|
|
*/
|
|
session_t *session_create(context_t *context)
|
|
{
|
|
private_session_t *this = malloc_thing(private_session_t);
|
|
|
|
this->public.add_controller = (void(*)(session_t*, controller_t*))add_controller;
|
|
this->public.add_filter = (void(*)(session_t*, filter_t*))add_filter;
|
|
this->public.process = (void(*)(session_t*,request_t*))process;
|
|
this->public.get_sid = (char*(*)(session_t*))get_sid;
|
|
this->public.destroy = (void(*)(session_t*))destroy;
|
|
|
|
this->sid = NULL;
|
|
this->controllers = linked_list_create();
|
|
this->filters = linked_list_create();
|
|
this->context = context;
|
|
|
|
return &this->public;
|
|
}
|
|
|