351 lines
10 KiB
C
351 lines
10 KiB
C
/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthmct@yahoo.com>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Brian West <brian.west@mac.com>
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* Bret McDanel <trixter AT 0xdecafbad.com>
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* Justin Cassidy <xachenant@hotmail.com>
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*
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* mod_xml_cdr.c -- XML CDR Module to files or curl
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*
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*/
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#include <sys/stat.h>
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#include <switch.h>
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#include <curl/curl.h>
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static struct {
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char *cred;
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char *url;
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char *log_dir;
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char *err_log_dir;
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uint32_t delay;
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uint32_t retries;
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uint32_t shutdown;
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uint32_t ignore_cacert_check;
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int encode;
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} globals;
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SWITCH_MODULE_LOAD_FUNCTION(mod_xml_cdr_load);
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_xml_cdr_shutdown);
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SWITCH_MODULE_DEFINITION(mod_xml_cdr, mod_xml_cdr_load, NULL, NULL);
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/* this function would have access to the HTML returned by the webserver, we dont need it
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* and the default curl activity is to print to stdout, something not as desirable
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* so we have a dummy function here
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*/
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static void httpCallBack()
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{
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return;
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}
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static switch_status_t my_on_hangup(switch_core_session_t *session)
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{
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switch_xml_t cdr;
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char *xml_text = NULL;
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char *path = NULL;
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char *curl_xml_text = NULL;
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const char *logdir = NULL;
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char *xml_text_escaped = NULL;
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int fd = -1;
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uint32_t cur_try;
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long httpRes;
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CURL *curl_handle = NULL;
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switch_channel_t *channel = switch_core_session_get_channel(session);
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switch_status_t status = SWITCH_STATUS_FALSE;
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if (switch_ivr_generate_xml_cdr(session, &cdr) == SWITCH_STATUS_SUCCESS) {
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/* build the XML */
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if (!(xml_text = switch_xml_toxml(cdr))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Memory Error!\n");
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goto error;
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}
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if (!(logdir = switch_channel_get_variable(channel, "xml_cdr_base"))) {
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logdir = globals.log_dir;
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}
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if (!switch_strlen_zero(logdir)) {
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if ((path = switch_mprintf("%s%s%s.cdr.xml",
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logdir,
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SWITCH_PATH_SEPARATOR,
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switch_core_session_get_uuid(session)))) {
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if ((fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) > -1) {
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int wrote;
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wrote = write(fd, xml_text, (unsigned) strlen(xml_text));
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close(fd);
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fd = -1;
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} else {
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char ebuf[512] = { 0 };
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#ifdef WIN32
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strerror_s(ebuf, sizeof(ebuf), errno);
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#else
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strerror_r(errno, ebuf, sizeof(ebuf));
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#endif
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error writing [%s][%s]\n", path, ebuf);
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}
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switch_safe_free(path);
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}
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}
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/* try to post it to the web server */
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if (!switch_strlen_zero(globals.url)) {
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struct curl_slist *headers = NULL;
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curl_handle = curl_easy_init();
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if (globals.encode) {
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switch_size_t need_bytes = strlen(xml_text) * 3;
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xml_text_escaped = malloc(need_bytes);
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assert(xml_text_escaped);
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memset(xml_text_escaped, 0, sizeof(xml_text_escaped));
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if (globals.encode == 1) {
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headers = curl_slist_append(headers, "Content-Type: application/x-www-form-urlencoded");
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switch_url_encode(xml_text, xml_text_escaped, need_bytes - 1);
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} else {
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headers = curl_slist_append(headers, "Content-Type: application/x-www-form-base64-encoded");
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switch_b64_encode((unsigned char *)xml_text, need_bytes / 3, (unsigned char *)xml_text_escaped, need_bytes);
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}
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switch_safe_free(xml_text);
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xml_text = xml_text_escaped;
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} else {
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headers = curl_slist_append(headers, "Content-Type: application/x-www-form-plaintext");
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}
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if (!(curl_xml_text = switch_mprintf("cdr=%s", xml_text))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Memory Error!\n");
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goto error;
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}
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if (!switch_strlen_zero(globals.cred)) {
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curl_easy_setopt(curl_handle, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
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curl_easy_setopt(curl_handle, CURLOPT_USERPWD, globals.cred);
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}
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curl_easy_setopt(curl_handle, CURLOPT_HTTPHEADER, headers);
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curl_easy_setopt(curl_handle, CURLOPT_POST, 1);
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curl_easy_setopt(curl_handle, CURLOPT_POSTFIELDS, curl_xml_text);
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curl_easy_setopt(curl_handle, CURLOPT_URL, globals.url);
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curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "freeswitch-xml/1.0");
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curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, httpCallBack);
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if (globals.ignore_cacert_check) {
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curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYPEER, FALSE);
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}
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/* these were used for testing, optionally they may be enabled if someone desires
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curl_easy_setopt(curl_handle, CURLOPT_TIMEOUT, 120); // tcp timeout
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curl_easy_setopt(curl_handle, CURLOPT_FOLLOWLOCATION, 1); // 302 recursion level
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*/
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for (cur_try = 0; cur_try < globals.retries; cur_try++) {
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if (cur_try > 0) {
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switch_yield(globals.delay * 1000000);
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}
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curl_easy_perform(curl_handle);
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curl_easy_getinfo(curl_handle, CURLINFO_RESPONSE_CODE, &httpRes);
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if (httpRes == 200) {
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goto success;
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Got error [%ld] posting to web server [%s]\n",httpRes, globals.url);
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}
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}
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curl_easy_cleanup(curl_handle);
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curl_slist_free_all(headers);
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curl_handle = NULL;
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/* if we are here the web post failed for some reason */
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unable to post to web server, writing to file\n");
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if ((path = switch_mprintf("%s%s%s.cdr.xml",
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globals.err_log_dir,
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SWITCH_PATH_SEPARATOR,
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switch_core_session_get_uuid(session)))) {
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if ((fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) > -1) {
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int wrote;
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wrote = write(fd, xml_text, (unsigned) strlen(xml_text));
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close(fd);
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fd = -1;
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} else {
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char ebuf[512] = { 0 };
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#ifdef WIN32
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strerror_s(ebuf, sizeof(ebuf), errno);
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#else
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strerror_r(errno, ebuf, sizeof(ebuf));
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#endif
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error![%s]\n", ebuf);
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}
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}
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}
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Generating Data!\n");
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}
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success:
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status = SWITCH_STATUS_SUCCESS;
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error:
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if (curl_handle) {
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curl_easy_cleanup(curl_handle);
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}
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switch_safe_free(curl_xml_text);
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switch_safe_free(xml_text);
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switch_safe_free(path);
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switch_xml_free(cdr);
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return status;
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}
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static switch_state_handler_table_t state_handlers = {
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/*.on_init */ NULL,
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/*.on_ring */ NULL,
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/*.on_execute */ NULL,
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/*.on_hangup */ my_on_hangup,
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/*.on_loopback */ NULL,
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/*.on_transmit */ NULL
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};
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SWITCH_MODULE_LOAD_FUNCTION(mod_xml_cdr_load)
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{
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char *cf = "xml_cdr.conf";
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switch_xml_t cfg, xml, settings, param;
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switch_status_t status = SWITCH_STATUS_SUCCESS;
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/* test global state handlers */
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switch_core_add_state_handler(&state_handlers);
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*module_interface = switch_loadable_module_create_module_interface(pool, modname);
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memset(&globals,0,sizeof(globals));
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/* parse the config */
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if (!(xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "open of %s failed\n", cf);
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return SWITCH_STATUS_TERM;
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}
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if ((settings = switch_xml_child(cfg, "settings"))) {
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for (param = switch_xml_child(settings, "param"); param; param = param->next) {
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char *var = (char *) switch_xml_attr_soft(param, "name");
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char *val = (char *) switch_xml_attr_soft(param, "value");
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if (!strcasecmp(var, "cred")) {
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globals.cred = strdup(val);
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} else if (!strcasecmp(var, "url")) {
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globals.url = strdup(val);
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} else if (!strcasecmp(var, "delay")) {
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globals.delay = (uint32_t) atoi(val);
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} else if (!strcasecmp(var, "encode")) {
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if (!strcasecmp(val, "base64")) {
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globals.encode = 2;
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} else {
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globals.encode = switch_true(val) ? 1 : 0;
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}
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} else if (!strcasecmp(var, "retries")) {
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globals.retries = (uint32_t) atoi(val);
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} else if (!strcasecmp(var, "log-dir")) {
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if (switch_strlen_zero(val)) {
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globals.log_dir = switch_mprintf("%s%sxml_cdr",
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SWITCH_GLOBAL_dirs.log_dir,
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SWITCH_PATH_SEPARATOR);
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} else {
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if (switch_is_file_path(val)) {
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globals.log_dir = strdup(val);
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} else {
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globals.log_dir = switch_mprintf("%s%s%s",
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SWITCH_GLOBAL_dirs.log_dir,
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SWITCH_PATH_SEPARATOR,
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val);
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}
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}
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} else if (!strcasecmp(var, "err-log-dir")) {
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if (switch_strlen_zero(val)) {
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globals.err_log_dir = switch_mprintf("%s%sxml_cdr",
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SWITCH_GLOBAL_dirs.log_dir,
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SWITCH_PATH_SEPARATOR);
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} else {
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if (switch_is_file_path(val)) {
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globals.err_log_dir = strdup(val);
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} else {
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globals.err_log_dir = switch_mprintf("%s%s%s",
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SWITCH_GLOBAL_dirs.log_dir,
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SWITCH_PATH_SEPARATOR,
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val);
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}
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}
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} else if (!strcasecmp(var, "ignore-cacert-check") && switch_true(val)) {
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globals.ignore_cacert_check = 1;
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}
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if (switch_strlen_zero(globals.err_log_dir)) {
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if (!switch_strlen_zero(globals.log_dir)) {
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globals.err_log_dir = strdup(globals.log_dir);
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} else {
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globals.err_log_dir = switch_mprintf("%s%sxml_cdr",
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SWITCH_GLOBAL_dirs.log_dir,
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SWITCH_PATH_SEPARATOR);
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}
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}
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}
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}
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if (globals.retries < 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "retries is negative, setting to 0\n");
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globals.retries = 0;
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}
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if (globals.retries && globals.delay<=0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "retries set but delay 0 setting to 5000ms\n");
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globals.delay = 5000;
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}
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globals.retries++;
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switch_xml_free(xml);
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return status;
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}
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_xml_cdr_shutdown)
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{
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globals.shutdown=1;
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return SWITCH_STATUS_SUCCESS;
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}
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
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*/
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