209 lines
4.2 KiB
C
209 lines
4.2 KiB
C
/*
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* Copyright (C) 2010 Martin Willi
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* Copyright (C) 2010 revosec AG
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "soup_fetcher.h"
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#include <libsoup/soup.h>
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#include <library.h>
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#include <utils/debug.h>
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#define DEFAULT_TIMEOUT 10
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typedef struct private_soup_fetcher_t private_soup_fetcher_t;
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/**
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* private data of a soup_fetcher_t object.
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*/
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struct private_soup_fetcher_t {
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/**
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* Public data
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*/
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soup_fetcher_t public;
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/**
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* HTTP request method
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*/
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const char *method;
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/**
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* Request content type
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*/
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char *type;
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/**
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* Request data
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*/
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chunk_t data;
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/**
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* Request timeout
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*/
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u_int timeout;
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/**
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* HTTP request version
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*/
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SoupHTTPVersion version;
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/**
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* Fetcher callback function
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*/
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fetcher_callback_t cb;
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/**
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* Response status
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*/
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u_int *result;
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};
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/**
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* Data to pass to soup callback
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*/
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typedef struct {
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fetcher_callback_t cb;
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void *user;
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SoupSession *session;
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} cb_data_t;
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/**
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* Soup callback invoking our callback
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*/
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static void soup_cb(SoupMessage *message, SoupBuffer *chunk, cb_data_t *data)
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{
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if (!data->cb(data->user, chunk_create((u_char*)chunk->data, chunk->length)))
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{
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soup_session_cancel_message(data->session, message,
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SOUP_STATUS_CANCELLED);
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}
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}
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METHOD(fetcher_t, fetch, status_t,
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private_soup_fetcher_t *this, char *uri, void *userdata)
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{
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SoupMessage *message;
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status_t status = FAILED;
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cb_data_t data = {
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.cb = this->cb,
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.user = userdata,
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};
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message = soup_message_new(this->method, uri);
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if (!message)
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{
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return NOT_SUPPORTED;
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}
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if (this->cb == fetcher_default_callback)
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{
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*(chunk_t*)userdata = chunk_empty;
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}
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if (this->type)
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{
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soup_message_set_request(message, this->type, SOUP_MEMORY_STATIC,
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this->data.ptr, this->data.len);
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}
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soup_message_set_http_version(message, this->version);
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soup_message_body_set_accumulate(message->response_body, FALSE);
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g_signal_connect(message, "got-chunk", G_CALLBACK(soup_cb), &data);
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data.session = soup_session_new();
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g_object_set(G_OBJECT(data.session),
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SOUP_SESSION_TIMEOUT, (guint)this->timeout, NULL);
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DBG2(DBG_LIB, "sending http request to '%s'...", uri);
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soup_session_send_message(data.session, message);
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if (this->result)
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{
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*this->result = message->status_code;
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}
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if (SOUP_STATUS_IS_SUCCESSFUL(message->status_code))
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{
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status = SUCCESS;
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}
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else if (!this->result)
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{ /* only log an error if the code is not returned */
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DBG1(DBG_LIB, "HTTP request failed: %s", message->reason_phrase);
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}
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g_object_unref(G_OBJECT(message));
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g_object_unref(G_OBJECT(data.session));
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return status;
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}
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METHOD(fetcher_t, set_option, bool,
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private_soup_fetcher_t *this, fetcher_option_t option, ...)
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{
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bool supported = TRUE;
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va_list args;
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va_start(args, option);
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switch (option)
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{
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case FETCH_REQUEST_DATA:
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this->method = SOUP_METHOD_POST;
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this->data = va_arg(args, chunk_t);
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break;
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case FETCH_REQUEST_TYPE:
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this->type = va_arg(args, char*);
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break;
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case FETCH_HTTP_VERSION_1_0:
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this->version = SOUP_HTTP_1_0;
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break;
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case FETCH_TIMEOUT:
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this->timeout = va_arg(args, u_int);
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break;
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case FETCH_CALLBACK:
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this->cb = va_arg(args, fetcher_callback_t);
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break;
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case FETCH_RESPONSE_CODE:
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this->result = va_arg(args, u_int*);
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break;
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default:
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supported = FALSE;
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break;
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}
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va_end(args);
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return supported;
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}
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METHOD(fetcher_t, destroy, void,
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private_soup_fetcher_t *this)
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{
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free(this);
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}
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/*
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* Described in header.
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*/
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soup_fetcher_t *soup_fetcher_create()
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{
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private_soup_fetcher_t *this;
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INIT(this,
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.public = {
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.interface = {
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.fetch = _fetch,
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.set_option = _set_option,
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.destroy = _destroy,
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},
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},
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.method = SOUP_METHOD_GET,
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.version = SOUP_HTTP_1_1,
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.timeout = DEFAULT_TIMEOUT,
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.cb = fetcher_default_callback,
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);
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return &this->public;
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}
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