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142 lines
3.6 KiB
142 lines
3.6 KiB
/*
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* script functions of utils module
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*
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* Copyright (C) 2008 Juha Heinanen
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*
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* This file is part of Kamailio, a free SIP server.
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*
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* Kamailio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* Kamailio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/*!
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* \file
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* \brief SIP-router utils ::
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* \ingroup utils
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* Module: \ref utils
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*/
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#include <curl/curl.h>
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#include "../../mod_fix.h"
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#include "../../pvar.h"
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#include "../../route_struct.h"
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#include "../../ut.h"
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#include "../../mem/mem.h"
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#include "../../parser/msg_parser.h"
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#include "../../lvalue.h"
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#include "utils.h"
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/*
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* curl write function that saves received data as zero terminated
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* to stream. Returns the amount of data taken care of.
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*/
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size_t write_function( void *ptr, size_t size, size_t nmemb, void *stream)
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{
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/* Allocate memory and copy */
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char* data;
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data = (char*)malloc((size* nmemb) + 1);
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if (data == NULL) {
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LM_ERR("cannot allocate memory for stream\n");
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return CURLE_WRITE_ERROR;
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}
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memcpy(data, (char*)ptr, size* nmemb);
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data[nmemb] = '\0';
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*((char**) stream) = data;
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return size* nmemb;
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}
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/*
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* Performs http_query and saves possible result (first body line of reply)
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* to pvar.
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*/
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int http_query(struct sip_msg* _m, char* _url, char* _dst)
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{
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CURL *curl;
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CURLcode res;
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str value;
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char *url, *at;
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char* stream;
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long stat;
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pv_spec_t *dst;
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pv_value_t val;
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double download_size;
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if (fixup_get_svalue(_m, (gparam_p)_url, &value) != 0) {
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LM_ERR("cannot get page value\n");
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return -1;
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}
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curl = curl_easy_init();
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if (curl == NULL) {
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LM_ERR("failed to initialize curl\n");
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return -1;
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}
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url = pkg_malloc(value.len + 1);
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if (url == NULL) {
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curl_easy_cleanup(curl);
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LM_ERR("cannot allocate pkg memory for url\n");
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return -1;
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}
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memcpy(url, value.s, value.len);
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*(url + value.len) = (char)0;
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curl_easy_setopt(curl, CURLOPT_URL, url);
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curl_easy_setopt(curl, CURLOPT_NOSIGNAL, (long)1);
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curl_easy_setopt(curl, CURLOPT_TIMEOUT, (long)http_query_timeout);
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stream = NULL;
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_function);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, &stream);
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res = curl_easy_perform(curl);
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pkg_free(url);
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curl_easy_cleanup(curl);
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if (res != CURLE_OK) {
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LM_ERR("failed to perform curl\n");
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return -1;
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}
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curl_easy_getinfo(curl, CURLINFO_HTTP_CODE, &stat);
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if ((stat >= 200) && (stat < 400)) {
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curl_easy_getinfo(curl, CURLINFO_SIZE_DOWNLOAD, &download_size);
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LM_DBG("http_query download size: %u\n", (unsigned int)download_size);
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/* search for line feed */
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at = memchr(stream, (char)10, download_size);
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if (at == NULL) {
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/* not found: use whole stream */
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at = stream + (unsigned int)download_size;
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}
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val.rs.s = stream;
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val.rs.len = at - stream;
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LM_DBG("http)query result: %.*s\n", val.rs.len, val.rs.s);
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val.flags = PV_VAL_STR;
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dst = (pv_spec_t *)_dst;
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dst->setf(_m, &dst->pvp, (int)EQ_T, &val);
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}
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return stat;
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}
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