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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2008, Digium, Inc.
*
* Dwayne M. Hubbard <dhubbard@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief ReceiveFax application for res_fax
*
* \author\verbatim Dwayne M. Hubbard <dhubbard@digium.com> \endverbatim
*
* This is a ReceiveFax application for use with res_fax. This is probably
* a throw away application, once res_fax works, it should probably be
* merged with app_fax.c
*
* \ingroup applications
*/
/*** MODULEINFO
<defaultenabled>yes</defaultenabled>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/file.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/lock.h"
#include "asterisk/app.h"
#include "asterisk/res_fax.h"
static char *app = "ReceiveFax";
static char *synopsis =
"ReceiveFax application for res_fax.";
static char *descrip = "This application is a ?temporary? ReceiveFax application.\n"
" It uses the res_fax module.\n";
enum {
OPTION_A = (1 << 0),
OPTION_B = (1 << 1),
OPTION_C = (1 << 2),
} option_flags;
enum {
OPTION_ARG_B = 0,
OPTION_ARG_C = 1,
/* This *must* be the last value in this enum! */
OPTION_ARG_ARRAY_SIZE = 2,
} option_args;
AST_APP_OPTIONS(app_opts,{
AST_APP_OPTION('a', OPTION_A),
AST_APP_OPTION_ARG('b', OPTION_B, OPTION_ARG_B),
AST_APP_OPTION_ARG('c', OPTION_C, OPTION_ARG_C),
});
static int receivefax_exec(struct ast_channel *chan, void *data)
{
int ms = 1000;
int timeout = 5000; /* 5 seconds */
int res = 0;
struct ast_flags flags;
struct ast_frame *frame = NULL;
struct ast_fax_session *session;
struct ast_fax_requirements *sessionreqs;
char *parse, *opts[OPTION_ARG_ARRAY_SIZE];
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(dummy);
AST_APP_ARG(options);
);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "%s requires an argument (filename[,options])\n", app);
return -1;
}
/* set the fax requirements */
sessionreqs = ast_calloc(1, sizeof(*sessionreqs));
if (!sessionreqs) {
ast_log(LOG_ERROR, "system error\n");
return -1;
}
sessionreqs->type = FAX_SESSION_MULAW;
sessionreqs->operation = FAX_SESSION_OP_RECEIVE;
/* obtain a fax resource that can handle said requirements */
session = ast_fax_session_get(sessionreqs);
if (!session) {
ast_log(LOG_ERROR, "failed to retrieve a fax session that is capable of the session requirements.\n");
ast_free(sessionreqs);
return -1;
}
session->headerinfo = ast_strdup(pbx_builtin_getvar_helper(chan, "LOCALHEADERINFO"));
session->localstationid = ast_strdup(pbx_builtin_getvar_helper(chan, "LOCALSTATIONID"));
session->start(session);
/* if you feed it, it will fax */
while (ms > 0) {
ms = ast_waitfor(chan, ms);
if (ms < 0) {
/* bad stuff happened */
res = ms;
break;
}
if (!ms) {
/* nothing happened */
if (timeout > 0) {
timeout -= 1000;
ms = 1000;
continue;
} else {
ast_log(LOG_WARNING, "channel '%s' timed-out waiting to receive the fax.\n", chan->name);
break;
}
}
if (!(frame = ast_read(chan))) {
ast_log(LOG_DEBUG, "channel '%s' failed to read frames.\n", chan->name);
res = -1;
break;
}
ast_frfree(frame);
}
/* We need to make a copy of the input string if we are going to modify it! */
parse = ast_strdupa(data);
AST_STANDARD_APP_ARGS(args, parse);
if (args.argc == 2)
ast_app_parse_options(app_opts, &flags, opts, args.options);
if (!ast_strlen_zero(args.dummy))
ast_log(LOG_NOTICE, "Dummy value is : %s\n", args.dummy);
if (ast_test_flag(&flags, OPTION_A))
ast_log(LOG_NOTICE, "Option A is set\n");
if (ast_test_flag(&flags, OPTION_B))
ast_log(LOG_NOTICE, "Option B is set with : %s\n", opts[OPTION_ARG_B] ? opts[OPTION_ARG_B] : "<unspecified>");
if (ast_test_flag(&flags, OPTION_C))
ast_log(LOG_NOTICE, "Option C is set with : %s\n", opts[OPTION_ARG_C] ? opts[OPTION_ARG_C] : "<unspecified>");
ast_free(sessionreqs);
ast_fax_session_unreference(session);
return res;
}
static int unload_module(void)
{
return ast_unregister_application(app);
}
static int load_module(void)
{
return ast_register_application(app, receivefax_exec, synopsis, descrip) ?
AST_MODULE_LOAD_DECLINE : AST_MODULE_LOAD_SUCCESS;
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "ReceiveFax Application for res_fax");
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