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/*
* Copyright (C) 2010 Martin Willi
* Copyright (C) 2010 revosec AG
*
* 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.
*/
#include "soup_fetcher.h"
#include <libsoup/soup.h>
#include <library.h>
#include <utils/debug.h>
#define DEFAULT_TIMEOUT 10
typedef struct private_soup_fetcher_t private_soup_fetcher_t;
/**
* private data of a soup_fetcher_t object.
*/
struct private_soup_fetcher_t {
/**
* Public data
*/
soup_fetcher_t public;
/**
* HTTP request method
*/
const char *method;
/**
* Request content type
*/
char *type;
/**
* Request data
*/
chunk_t data;
/**
* Request timeout
*/
u_int timeout;
/**
* HTTP request version
*/
SoupHTTPVersion version;
/**
* Fetcher callback function
*/
fetcher_callback_t cb;
/**
* Response status
*/
u_int *result;
};
/**
* Data to pass to soup callback
*/
typedef struct {
fetcher_callback_t cb;
void *user;
SoupSession *session;
} cb_data_t;
/**
* Soup callback invoking our callback
*/
static void soup_cb(SoupMessage *message, SoupBuffer *chunk, cb_data_t *data)
{
if (!data->cb(data->user, chunk_create((u_char*)chunk->data, chunk->length)))
{
soup_session_cancel_message(data->session, message,
SOUP_STATUS_CANCELLED);
}
}
METHOD(fetcher_t, fetch, status_t,
private_soup_fetcher_t *this, char *uri, void *userdata)
{
SoupMessage *message;
status_t status = FAILED;
cb_data_t data = {
.cb = this->cb,
.user = userdata,
};
message = soup_message_new(this->method, uri);
if (!message)
{
return NOT_SUPPORTED;
}
if (this->cb == fetcher_default_callback)
{
*(chunk_t*)userdata = chunk_empty;
}
if (this->type)
{
soup_message_set_request(message, this->type, SOUP_MEMORY_STATIC,
this->data.ptr, this->data.len);
}
soup_message_set_http_version(message, this->version);
soup_message_body_set_accumulate(message->response_body, FALSE);
g_signal_connect(message, "got-chunk", G_CALLBACK(soup_cb), &data);
data.session = soup_session_sync_new();
g_object_set(G_OBJECT(data.session),
SOUP_SESSION_TIMEOUT, (guint)this->timeout, NULL);
DBG2(DBG_LIB, "sending http request to '%s'...", uri);
soup_session_send_message(data.session, message);
if (this->result)
{
*this->result = message->status_code;
}
if (SOUP_STATUS_IS_SUCCESSFUL(message->status_code))
{
status = SUCCESS;
}
else if (!this->result)
{ /* only log an error if the code is not returned */
DBG1(DBG_LIB, "HTTP request failed: %s", message->reason_phrase);
}
g_object_unref(G_OBJECT(message));
g_object_unref(G_OBJECT(data.session));
return status;
}
METHOD(fetcher_t, set_option, bool,
private_soup_fetcher_t *this, fetcher_option_t option, ...)
{
bool supported = TRUE;
va_list args;
va_start(args, option);
switch (option)
{
case FETCH_REQUEST_DATA:
this->method = SOUP_METHOD_POST;
this->data = va_arg(args, chunk_t);
break;
case FETCH_REQUEST_TYPE:
this->type = va_arg(args, char*);
break;
case FETCH_HTTP_VERSION_1_0:
this->version = SOUP_HTTP_1_0;
break;
case FETCH_TIMEOUT:
this->timeout = va_arg(args, u_int);
break;
case FETCH_CALLBACK:
this->cb = va_arg(args, fetcher_callback_t);
break;
case FETCH_RESPONSE_CODE:
this->result = va_arg(args, u_int*);
break;
default:
supported = FALSE;
break;
}
va_end(args);
return supported;
}
METHOD(fetcher_t, destroy, void,
private_soup_fetcher_t *this)
{
free(this);
}
/*
* Described in header.
*/
soup_fetcher_t *soup_fetcher_create()
{
private_soup_fetcher_t *this;
INIT(this,
.public = {
.interface = {
.fetch = _fetch,
.set_option = _set_option,
.destroy = _destroy,
},
},
.method = SOUP_METHOD_GET,
.version = SOUP_HTTP_1_1,
.timeout = DEFAULT_TIMEOUT,
.cb = fetcher_default_callback,
);
return &this->public;
}
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