This is the starting point for the Asterisk 11: Who Hung Up work and provides a framework which will allow channel drivers to report the types of hangup cause information available in SIP_CAUSE without incurring the overhead of the MASTER_CHANNEL dialplan function. The initial implementation only includes cause generation for chan_sip and does not include cause code translation utilities. This change deprecates SIP_CAUSE and replaces its method of reporting cause codes with the new framework. This change also deprecates the 'storesipcause' option in sip.conf. Review: https://reviewboard.asterisk.org/r/1822/ (Closes issue SWP-4221) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@366408 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1555 lines
41 KiB
C
1555 lines
41 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2006, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Generic File Format Support.
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*
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* \author Mark Spencer <markster@digium.com>
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <dirent.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <math.h>
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#include "asterisk/_private.h" /* declare ast_file_init() */
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#include "asterisk/paths.h" /* use ast_config_AST_DATA_DIR */
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#include "asterisk/mod_format.h"
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#include "asterisk/cli.h"
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#include "asterisk/channel.h"
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#include "asterisk/sched.h"
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#include "asterisk/translate.h"
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#include "asterisk/utils.h"
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#include "asterisk/lock.h"
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#include "asterisk/app.h"
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#include "asterisk/pbx.h"
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#include "asterisk/linkedlists.h"
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#include "asterisk/module.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/test.h"
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/*! \brief
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* The following variable controls the layout of localized sound files.
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* If 0, use the historical layout with prefix just before the filename
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* (i.e. digits/en/1.gsm , digits/it/1.gsm or default to digits/1.gsm),
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* if 1 put the prefix at the beginning of the filename
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* (i.e. en/digits/1.gsm, it/digits/1.gsm or default to digits/1.gsm).
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* The latter permits a language to be entirely in one directory.
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*
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* This is settable in asterisk.conf.
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*/
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int ast_language_is_prefix = 1;
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static AST_RWLIST_HEAD_STATIC(formats, ast_format_def);
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int __ast_format_def_register(const struct ast_format_def *f, struct ast_module *mod)
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{
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struct ast_format_def *tmp;
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AST_RWLIST_WRLOCK(&formats);
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AST_RWLIST_TRAVERSE(&formats, tmp, list) {
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if (!strcasecmp(f->name, tmp->name)) {
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AST_RWLIST_UNLOCK(&formats);
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ast_log(LOG_WARNING, "Tried to register '%s' format, already registered\n", f->name);
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return -1;
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}
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}
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if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
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AST_RWLIST_UNLOCK(&formats);
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return -1;
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}
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*tmp = *f;
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tmp->module = mod;
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if (tmp->buf_size) {
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/*
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* Align buf_size properly, rounding up to the machine-specific
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* alignment for pointers.
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*/
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struct _test_align { void *a, *b; } p;
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int align = (char *)&p.b - (char *)&p.a;
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tmp->buf_size = ((f->buf_size + align - 1) / align) * align;
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}
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memset(&tmp->list, 0, sizeof(tmp->list));
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AST_RWLIST_INSERT_HEAD(&formats, tmp, list);
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AST_RWLIST_UNLOCK(&formats);
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ast_verb(2, "Registered file format %s, extension(s) %s\n", f->name, f->exts);
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return 0;
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}
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int ast_format_def_unregister(const char *name)
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{
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struct ast_format_def *tmp;
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int res = -1;
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AST_RWLIST_WRLOCK(&formats);
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AST_RWLIST_TRAVERSE_SAFE_BEGIN(&formats, tmp, list) {
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if (!strcasecmp(name, tmp->name)) {
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AST_RWLIST_REMOVE_CURRENT(list);
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ast_free(tmp);
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res = 0;
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}
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}
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AST_RWLIST_TRAVERSE_SAFE_END;
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AST_RWLIST_UNLOCK(&formats);
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if (!res)
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ast_verb(2, "Unregistered format %s\n", name);
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else
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ast_log(LOG_WARNING, "Tried to unregister format %s, already unregistered\n", name);
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return res;
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}
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int ast_stopstream(struct ast_channel *tmp)
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{
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ast_channel_lock(tmp);
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/* Stop a running stream if there is one */
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if (ast_channel_stream(tmp)) {
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ast_closestream(ast_channel_stream(tmp));
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ast_channel_stream_set(tmp, NULL);
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if (ast_channel_oldwriteformat(tmp)->id && ast_set_write_format(tmp, ast_channel_oldwriteformat(tmp)))
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ast_log(LOG_WARNING, "Unable to restore format back to %s\n", ast_getformatname(ast_channel_oldwriteformat(tmp)));
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}
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/* Stop the video stream too */
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if (ast_channel_vstream(tmp) != NULL) {
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ast_closestream(ast_channel_vstream(tmp));
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ast_channel_vstream_set(tmp, NULL);
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}
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ast_channel_unlock(tmp);
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return 0;
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}
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int ast_writestream(struct ast_filestream *fs, struct ast_frame *f)
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{
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int res = -1;
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if (f->frametype == AST_FRAME_VIDEO) {
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if (AST_FORMAT_GET_TYPE(fs->fmt->format.id) == AST_FORMAT_TYPE_AUDIO) {
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/* This is the audio portion. Call the video one... */
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if (!fs->vfs && fs->filename) {
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const char *type = ast_getformatname(&f->subclass.format);
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fs->vfs = ast_writefile(fs->filename, type, NULL, fs->flags, 0, fs->mode);
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ast_debug(1, "Opened video output file\n");
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}
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if (fs->vfs)
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return ast_writestream(fs->vfs, f);
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/* else ignore */
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return 0;
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}
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} else if (f->frametype != AST_FRAME_VOICE) {
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ast_log(LOG_WARNING, "Tried to write non-voice frame\n");
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return -1;
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}
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if (ast_format_cmp(&f->subclass.format, &fs->fmt->format) != AST_FORMAT_CMP_NOT_EQUAL) {
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res = fs->fmt->write(fs, f);
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if (res < 0)
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ast_log(LOG_WARNING, "Natural write failed\n");
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else if (res > 0)
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ast_log(LOG_WARNING, "Huh??\n");
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} else {
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/* XXX If they try to send us a type of frame that isn't the normal frame, and isn't
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the one we've setup a translator for, we do the "wrong thing" XXX */
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if (fs->trans && (ast_format_cmp(&f->subclass.format, &fs->lastwriteformat) != AST_FORMAT_CMP_EQUAL)) {
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ast_translator_free_path(fs->trans);
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fs->trans = NULL;
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}
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if (!fs->trans)
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fs->trans = ast_translator_build_path(&fs->fmt->format, &f->subclass.format);
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if (!fs->trans)
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ast_log(LOG_WARNING, "Unable to translate to format %s, source format %s\n",
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fs->fmt->name, ast_getformatname(&f->subclass.format));
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else {
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struct ast_frame *trf;
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ast_format_copy(&fs->lastwriteformat, &f->subclass.format);
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/* Get the translated frame but don't consume the original in case they're using it on another stream */
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if ((trf = ast_translate(fs->trans, f, 0))) {
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struct ast_frame *cur;
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/* the translator may have returned multiple frames, so process them */
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for (cur = trf; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
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if ((res = fs->fmt->write(fs, trf))) {
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ast_log(LOG_WARNING, "Translated frame write failed\n");
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break;
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}
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}
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ast_frfree(trf);
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} else {
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res = 0;
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}
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}
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}
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return res;
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}
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static int copy(const char *infile, const char *outfile)
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{
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int ifd, ofd, len;
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char buf[4096]; /* XXX make it lerger. */
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if ((ifd = open(infile, O_RDONLY)) < 0) {
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ast_log(LOG_WARNING, "Unable to open %s in read-only mode\n", infile);
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return -1;
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}
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if ((ofd = open(outfile, O_WRONLY | O_TRUNC | O_CREAT, AST_FILE_MODE)) < 0) {
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ast_log(LOG_WARNING, "Unable to open %s in write-only mode\n", outfile);
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close(ifd);
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return -1;
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}
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while ( (len = read(ifd, buf, sizeof(buf)) ) ) {
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int res;
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if (len < 0) {
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ast_log(LOG_WARNING, "Read failed on %s: %s\n", infile, strerror(errno));
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break;
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}
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/* XXX handle partial writes */
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res = write(ofd, buf, len);
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if (res != len) {
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ast_log(LOG_WARNING, "Write failed on %s (%d of %d): %s\n", outfile, res, len, strerror(errno));
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len = -1; /* error marker */
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break;
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}
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}
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close(ifd);
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close(ofd);
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if (len < 0) {
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unlink(outfile);
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return -1; /* error */
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}
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return 0; /* success */
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}
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/*!
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* \brief construct a filename. Absolute pathnames are preserved,
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* relative names are prefixed by the sounds/ directory.
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* The wav49 suffix is replaced by 'WAV'.
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* Returns a malloc'ed string to be freed by the caller.
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*/
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static char *build_filename(const char *filename, const char *ext)
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{
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char *fn = NULL;
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if (!strcmp(ext, "wav49"))
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ext = "WAV";
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if (filename[0] == '/') {
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if (asprintf(&fn, "%s.%s", filename, ext) < 0) {
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ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
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fn = NULL;
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}
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} else {
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if (asprintf(&fn, "%s/sounds/%s.%s",
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ast_config_AST_DATA_DIR, filename, ext) < 0) {
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ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
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fn = NULL;
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}
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}
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return fn;
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}
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/* compare type against the list 'exts' */
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/* XXX need a better algorithm */
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static int exts_compare(const char *exts, const char *type)
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{
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char tmp[256];
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char *stringp = tmp, *ext;
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ast_copy_string(tmp, exts, sizeof(tmp));
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while ((ext = strsep(&stringp, "|"))) {
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if (!strcmp(ext, type))
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return 1;
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}
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return 0;
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}
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/*! \internal \brief Close the file stream by canceling any pending read / write callbacks */
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static void filestream_close(struct ast_filestream *f)
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{
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enum ast_format_type format_type = AST_FORMAT_GET_TYPE(f->fmt->format.id);
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if (!f->owner) {
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return;
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}
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/* Stop a running stream if there is one */
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switch (format_type)
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{
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case AST_FORMAT_TYPE_AUDIO:
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ast_channel_stream_set(f->owner, NULL);
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AST_SCHED_DEL_ACCESSOR(ast_channel_sched(f->owner), f->owner, ast_channel_streamid, ast_channel_streamid_set);
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ast_settimeout(f->owner, 0, NULL, NULL);
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break;
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case AST_FORMAT_TYPE_VIDEO:
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ast_channel_vstream_set(f->owner, NULL);
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AST_SCHED_DEL_ACCESSOR(ast_channel_sched(f->owner), f->owner, ast_channel_vstreamid, ast_channel_vstreamid_set);
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break;
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default:
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ast_log(AST_LOG_WARNING, "Unable to schedule deletion of filestream with unsupported type %s\n", f->fmt->name);
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break;
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}
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}
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static void filestream_destructor(void *arg)
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{
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struct ast_filestream *f = arg;
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int status;
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int pid = -1;
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/* Stop a running stream if there is one */
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filestream_close(f);
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/* destroy the translator on exit */
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if (f->trans)
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ast_translator_free_path(f->trans);
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if (f->realfilename && f->filename) {
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pid = ast_safe_fork(0);
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if (!pid) {
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execl("/bin/mv", "mv", "-f", f->filename, f->realfilename, SENTINEL);
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_exit(1);
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}
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else if (pid > 0) {
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/* Block the parent until the move is complete.*/
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waitpid(pid, &status, 0);
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}
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}
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if (f->filename)
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free(f->filename);
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if (f->realfilename)
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free(f->realfilename);
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if (f->fmt->close) {
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void (*closefn)(struct ast_filestream *) = f->fmt->close;
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closefn(f);
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}
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if (f->f)
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fclose(f->f);
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if (f->vfs)
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ast_closestream(f->vfs);
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if (f->write_buffer) {
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ast_free(f->write_buffer);
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}
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if (f->orig_chan_name)
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free((void *) f->orig_chan_name);
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ast_module_unref(f->fmt->module);
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}
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static struct ast_filestream *get_filestream(struct ast_format_def *fmt, FILE *bfile)
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{
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struct ast_filestream *s;
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int l = sizeof(*s) + fmt->buf_size + fmt->desc_size; /* total allocation size */
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if ( (s = ao2_alloc(l, filestream_destructor)) == NULL)
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return NULL;
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s->fmt = fmt;
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s->f = bfile;
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if (fmt->desc_size)
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s->_private = ((char *)(s + 1)) + fmt->buf_size;
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if (fmt->buf_size)
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s->buf = (char *)(s + 1);
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s->fr.src = fmt->name;
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return s;
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}
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/*
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* Default implementations of open and rewrite.
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* Only use them if you don't have expensive stuff to do.
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*/
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enum wrap_fn { WRAP_OPEN, WRAP_REWRITE };
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static int fn_wrapper(struct ast_filestream *s, const char *comment, enum wrap_fn mode)
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{
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struct ast_format_def *f = s->fmt;
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int ret = -1;
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int (*openfn)(struct ast_filestream *s);
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if (mode == WRAP_OPEN && (openfn = f->open) && openfn(s))
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ast_log(LOG_WARNING, "Unable to open format %s\n", f->name);
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else if (mode == WRAP_REWRITE && f->rewrite && f->rewrite(s, comment))
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ast_log(LOG_WARNING, "Unable to rewrite format %s\n", f->name);
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else {
|
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/* preliminary checks succeed. update usecount */
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ast_module_ref(f->module);
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ret = 0;
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}
|
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return ret;
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}
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|
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static int rewrite_wrapper(struct ast_filestream *s, const char *comment)
|
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{
|
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return fn_wrapper(s, comment, WRAP_REWRITE);
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}
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|
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static int open_wrapper(struct ast_filestream *s)
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{
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return fn_wrapper(s, NULL, WRAP_OPEN);
|
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}
|
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|
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enum file_action {
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ACTION_EXISTS = 1, /* return matching format if file exists, 0 otherwise */
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ACTION_DELETE, /* delete file, return 0 on success, -1 on error */
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ACTION_RENAME, /* rename file. return 0 on success, -1 on error */
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ACTION_OPEN,
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ACTION_COPY /* copy file. return 0 on success, -1 on error */
|
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};
|
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|
|
/*!
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* \internal
|
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* \brief perform various actions on a file. Second argument
|
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* \note arg2 depends on the command:
|
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* unused for DELETE
|
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* optional ast_format_cap holding all the formats found for a file, for EXISTS.
|
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* destination file name (const char *) for COPY and RENAME
|
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* struct ast_channel * for OPEN
|
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* if fmt is NULL, OPEN will return the first matching entry,
|
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* whereas other functions will run on all matching entries.
|
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*/
|
|
static int filehelper(const char *filename, const void *arg2, const char *fmt, const enum file_action action)
|
|
{
|
|
struct ast_format_def *f;
|
|
int res = (action == ACTION_EXISTS) ? 0 : -1;
|
|
|
|
AST_RWLIST_RDLOCK(&formats);
|
|
/* Check for a specific format */
|
|
AST_RWLIST_TRAVERSE(&formats, f, list) {
|
|
char *stringp, *ext = NULL;
|
|
|
|
if (fmt && !exts_compare(f->exts, fmt))
|
|
continue;
|
|
|
|
/* Look for a file matching the supported extensions.
|
|
* The file must exist, and for OPEN, must match
|
|
* one of the formats supported by the channel.
|
|
*/
|
|
stringp = ast_strdupa(f->exts); /* this is in the stack so does not need to be freed */
|
|
while ( (ext = strsep(&stringp, "|")) ) {
|
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struct stat st;
|
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char *fn = build_filename(filename, ext);
|
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|
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if (fn == NULL)
|
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continue;
|
|
|
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if ( stat(fn, &st) ) { /* file not existent */
|
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ast_free(fn);
|
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continue;
|
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}
|
|
/* for 'OPEN' we need to be sure that the format matches
|
|
* what the channel can process
|
|
*/
|
|
if (action == ACTION_OPEN) {
|
|
struct ast_channel *chan = (struct ast_channel *)arg2;
|
|
FILE *bfile;
|
|
struct ast_filestream *s;
|
|
|
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if ((ast_format_cmp(ast_channel_writeformat(chan), &f->format) == AST_FORMAT_CMP_NOT_EQUAL) &&
|
|
!(((AST_FORMAT_GET_TYPE(f->format.id) == AST_FORMAT_TYPE_AUDIO) && fmt) ||
|
|
((AST_FORMAT_GET_TYPE(f->format.id) == AST_FORMAT_TYPE_VIDEO) && fmt))) {
|
|
ast_free(fn);
|
|
continue; /* not a supported format */
|
|
}
|
|
if ( (bfile = fopen(fn, "r")) == NULL) {
|
|
ast_free(fn);
|
|
continue; /* cannot open file */
|
|
}
|
|
s = get_filestream(f, bfile);
|
|
if (!s) {
|
|
fclose(bfile);
|
|
ast_free(fn); /* cannot allocate descriptor */
|
|
continue;
|
|
}
|
|
if (open_wrapper(s)) {
|
|
ast_free(fn);
|
|
ast_closestream(s);
|
|
continue; /* cannot run open on file */
|
|
}
|
|
if (st.st_size == 0) {
|
|
ast_log(LOG_WARNING, "File %s detected to have zero size.\n", fn);
|
|
}
|
|
/* ok this is good for OPEN */
|
|
res = 1; /* found */
|
|
s->lasttimeout = -1;
|
|
s->fmt = f;
|
|
s->trans = NULL;
|
|
s->filename = NULL;
|
|
if (AST_FORMAT_GET_TYPE(s->fmt->format.id) == AST_FORMAT_TYPE_AUDIO) {
|
|
if (ast_channel_stream(chan))
|
|
ast_closestream(ast_channel_stream(chan));
|
|
ast_channel_stream_set(chan, s);
|
|
} else {
|
|
if (ast_channel_vstream(chan))
|
|
ast_closestream(ast_channel_vstream(chan));
|
|
ast_channel_vstream_set(chan, s);
|
|
}
|
|
ast_free(fn);
|
|
break;
|
|
}
|
|
switch (action) {
|
|
case ACTION_OPEN:
|
|
break; /* will never get here */
|
|
|
|
case ACTION_EXISTS: /* return the matching format */
|
|
/* if arg2 is present, it is a format capabilities structure.
|
|
* Add this format to the set of formats this file can be played in */
|
|
if (arg2) {
|
|
ast_format_cap_add((struct ast_format_cap *) arg2, &f->format);
|
|
}
|
|
res = 1; /* file does exist and format it exists in is returned in arg2 */
|
|
break;
|
|
|
|
case ACTION_DELETE:
|
|
if ( (res = unlink(fn)) )
|
|
ast_log(LOG_WARNING, "unlink(%s) failed: %s\n", fn, strerror(errno));
|
|
break;
|
|
|
|
case ACTION_RENAME:
|
|
case ACTION_COPY: {
|
|
char *nfn = build_filename((const char *)arg2, ext);
|
|
if (!nfn)
|
|
ast_log(LOG_WARNING, "Out of memory\n");
|
|
else {
|
|
res = action == ACTION_COPY ? copy(fn, nfn) : rename(fn, nfn);
|
|
if (res)
|
|
ast_log(LOG_WARNING, "%s(%s,%s) failed: %s\n",
|
|
action == ACTION_COPY ? "copy" : "rename",
|
|
fn, nfn, strerror(errno));
|
|
ast_free(nfn);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
ast_log(LOG_WARNING, "Unknown helper %d\n", action);
|
|
}
|
|
ast_free(fn);
|
|
}
|
|
}
|
|
AST_RWLIST_UNLOCK(&formats);
|
|
return res;
|
|
}
|
|
|
|
static int is_absolute_path(const char *filename)
|
|
{
|
|
return filename[0] == '/';
|
|
}
|
|
|
|
/*!
|
|
* \brief test if a file exists for a given format.
|
|
* \note result_cap is OPTIONAL
|
|
* \retval 1, true and result_cap represents format capabilities file exists in.
|
|
* \retval 0, false
|
|
*/
|
|
static int fileexists_test(const char *filename, const char *fmt, const char *lang,
|
|
char *buf, int buflen, struct ast_format_cap *result_cap)
|
|
{
|
|
if (buf == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
if (ast_language_is_prefix && !is_absolute_path(filename)) { /* new layout */
|
|
if (lang) {
|
|
snprintf(buf, buflen, "%s/%s", lang, filename);
|
|
} else {
|
|
snprintf(buf, buflen, "%s", filename);
|
|
}
|
|
} else { /* old layout */
|
|
strcpy(buf, filename); /* first copy the full string */
|
|
if (lang) {
|
|
/* insert the language and suffix if needed */
|
|
const char *c = strrchr(filename, '/');
|
|
int offset = c ? c - filename + 1 : 0; /* points right after the last '/' */
|
|
snprintf(buf + offset, buflen - offset, "%s/%s", lang, filename + offset);
|
|
}
|
|
}
|
|
|
|
return filehelper(buf, result_cap, fmt, ACTION_EXISTS);
|
|
}
|
|
|
|
/*!
|
|
* \brief helper routine to locate a file with a given format
|
|
* and language preference.
|
|
*
|
|
* \note Try preflang, preflang with stripped '_' suffices, or NULL.
|
|
*
|
|
* \note The last parameter(s) point to a buffer of sufficient size,
|
|
* which on success is filled with the matching filename.
|
|
*
|
|
* \param filename, name of the file.
|
|
* \param fmt, format to look for the file in. OPTIONAL
|
|
* \param preflang, the perfered language
|
|
* \param buf, returns the matching filename
|
|
* \param buflen, size of the buf
|
|
* \param result_cap, OPTIONAL format capabilities result structure
|
|
* returns what formats the file was found in.
|
|
*
|
|
* \retval 1, true. file exists and result format is set
|
|
* \retval 0, false. file does not exist.
|
|
*/
|
|
static int fileexists_core(const char *filename, const char *fmt, const char *preflang,
|
|
char *buf, int buflen, struct ast_format_cap *result_cap)
|
|
{
|
|
char *lang;
|
|
|
|
if (buf == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
/* We try languages in the following order:
|
|
* preflang (may include dialect and style codes)
|
|
* lang (preflang without dialect - if any)
|
|
* <none>
|
|
* default (unless the same as preflang or lang without dialect)
|
|
*/
|
|
|
|
lang = ast_strdupa(preflang);
|
|
|
|
/* Try preferred language, including removing any style or dialect codes */
|
|
while (!ast_strlen_zero(lang)) {
|
|
char *end;
|
|
|
|
if (fileexists_test(filename, fmt, lang, buf, buflen, result_cap)) {
|
|
return 1;
|
|
}
|
|
|
|
if ((end = strrchr(lang, '_')) != NULL) {
|
|
*end = '\0';
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
/* Try without any language */
|
|
if (fileexists_test(filename, fmt, NULL, buf, buflen, result_cap)) {
|
|
return 1;
|
|
}
|
|
|
|
/* Finally try the default language unless it was already tried before */
|
|
if ((ast_strlen_zero(preflang) || strcmp(preflang, DEFAULT_LANGUAGE)) && (ast_strlen_zero(lang) || strcmp(lang, DEFAULT_LANGUAGE))) {
|
|
if ((fileexists_test(filename, fmt, DEFAULT_LANGUAGE, buf, buflen, result_cap)) > 0) {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct ast_filestream *ast_openstream(struct ast_channel *chan, const char *filename, const char *preflang)
|
|
{
|
|
return ast_openstream_full(chan, filename, preflang, 0);
|
|
}
|
|
|
|
struct ast_filestream *ast_openstream_full(struct ast_channel *chan, const char *filename, const char *preflang, int asis)
|
|
{
|
|
/*
|
|
* Use fileexists_core() to find a file in a compatible
|
|
* language and format, set up a suitable translator,
|
|
* and open the stream.
|
|
*/
|
|
struct ast_format_cap *file_fmt_cap;
|
|
int res;
|
|
int buflen;
|
|
char *buf;
|
|
|
|
if (!asis) {
|
|
/* do this first, otherwise we detect the wrong writeformat */
|
|
ast_stopstream(chan);
|
|
if (ast_channel_generator(chan))
|
|
ast_deactivate_generator(chan);
|
|
}
|
|
if (preflang == NULL)
|
|
preflang = "";
|
|
buflen = strlen(preflang) + strlen(filename) + 4;
|
|
buf = alloca(buflen);
|
|
if (buf == NULL)
|
|
return NULL;
|
|
|
|
if (!(file_fmt_cap = ast_format_cap_alloc_nolock())) {
|
|
return NULL;
|
|
}
|
|
if (!fileexists_core(filename, NULL, preflang, buf, buflen, file_fmt_cap) ||
|
|
!ast_format_cap_has_type(file_fmt_cap, AST_FORMAT_TYPE_AUDIO)) {
|
|
|
|
ast_log(LOG_WARNING, "File %s does not exist in any format\n", filename);
|
|
file_fmt_cap = ast_format_cap_destroy(file_fmt_cap);
|
|
return NULL;
|
|
}
|
|
|
|
/* Set the channel to a format we can work with and save off the previous format. */
|
|
ast_format_copy(ast_channel_oldwriteformat(chan), ast_channel_writeformat(chan));
|
|
/* Set the channel to the best format that exists for the file. */
|
|
res = ast_set_write_format_from_cap(chan, file_fmt_cap);
|
|
/* don't need this anymore now that the channel's write format is set. */
|
|
file_fmt_cap = ast_format_cap_destroy(file_fmt_cap);
|
|
|
|
if (res == -1) { /* No format available that works with this channel */
|
|
return NULL;
|
|
}
|
|
res = filehelper(buf, chan, NULL, ACTION_OPEN);
|
|
if (res >= 0)
|
|
return ast_channel_stream(chan);
|
|
return NULL;
|
|
}
|
|
|
|
struct ast_filestream *ast_openvstream(struct ast_channel *chan, const char *filename, const char *preflang)
|
|
{
|
|
/* As above, but for video. But here we don't have translators
|
|
* so we must enforce a format.
|
|
*/
|
|
struct ast_format tmp_fmt;
|
|
struct ast_format_cap *tmp_cap;
|
|
char *buf;
|
|
int buflen;
|
|
const char *fmt;
|
|
int fd;
|
|
|
|
if (preflang == NULL)
|
|
preflang = "";
|
|
buflen = strlen(preflang) + strlen(filename) + 4;
|
|
buf = alloca(buflen);
|
|
if (buf == NULL)
|
|
return NULL;
|
|
|
|
/* is the channel capable of video without translation ?*/
|
|
if (!ast_format_cap_has_type(ast_channel_nativeformats(chan), AST_FORMAT_TYPE_VIDEO)) {
|
|
return NULL;
|
|
}
|
|
if (!(tmp_cap = ast_format_cap_alloc_nolock())) {
|
|
return NULL;
|
|
}
|
|
/* Video is supported, so see what video formats exist for this file */
|
|
if (!fileexists_core(filename, NULL, preflang, buf, buflen, tmp_cap)) {
|
|
tmp_cap = ast_format_cap_destroy(tmp_cap);
|
|
return NULL;
|
|
}
|
|
|
|
/* iterate over file formats and pick the first one compatible with the channel's native formats */
|
|
ast_format_cap_iter_start(tmp_cap);
|
|
while (!ast_format_cap_iter_next(tmp_cap, &tmp_fmt)) {
|
|
fmt = ast_getformatname(&tmp_fmt);
|
|
if ((AST_FORMAT_GET_TYPE(tmp_fmt.id) != AST_FORMAT_TYPE_VIDEO) ||
|
|
!ast_format_cap_iscompatible(ast_channel_nativeformats(chan), &tmp_fmt)) {
|
|
continue;
|
|
}
|
|
|
|
fd = filehelper(buf, chan, fmt, ACTION_OPEN);
|
|
if (fd >= 0) {
|
|
ast_format_cap_iter_end(tmp_cap);
|
|
tmp_cap = ast_format_cap_destroy(tmp_cap);
|
|
return ast_channel_vstream(chan);
|
|
}
|
|
ast_log(LOG_WARNING, "File %s has video but couldn't be opened\n", filename);
|
|
}
|
|
ast_format_cap_iter_end(tmp_cap);
|
|
tmp_cap = ast_format_cap_destroy(tmp_cap);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static struct ast_frame *read_frame(struct ast_filestream *s, int *whennext)
|
|
{
|
|
struct ast_frame *fr, *new_fr;
|
|
|
|
if (!s || !s->fmt) {
|
|
return NULL;
|
|
}
|
|
|
|
if (!(fr = s->fmt->read(s, whennext))) {
|
|
return NULL;
|
|
}
|
|
|
|
if (!(new_fr = ast_frisolate(fr))) {
|
|
ast_frfree(fr);
|
|
return NULL;
|
|
}
|
|
|
|
if (new_fr != fr) {
|
|
ast_frfree(fr);
|
|
fr = new_fr;
|
|
}
|
|
|
|
return fr;
|
|
}
|
|
|
|
struct ast_frame *ast_readframe(struct ast_filestream *s)
|
|
{
|
|
int whennext = 0;
|
|
|
|
return read_frame(s, &whennext);
|
|
}
|
|
|
|
enum fsread_res {
|
|
FSREAD_FAILURE,
|
|
FSREAD_SUCCESS_SCHED,
|
|
FSREAD_SUCCESS_NOSCHED,
|
|
};
|
|
|
|
static int ast_fsread_audio(const void *data);
|
|
|
|
static enum fsread_res ast_readaudio_callback(struct ast_filestream *s)
|
|
{
|
|
int whennext = 0;
|
|
|
|
while (!whennext) {
|
|
struct ast_frame *fr;
|
|
|
|
if (s->orig_chan_name && strcasecmp(ast_channel_name(s->owner), s->orig_chan_name)) {
|
|
goto return_failure;
|
|
}
|
|
|
|
fr = read_frame(s, &whennext);
|
|
|
|
if (!fr /* stream complete */ || ast_write(s->owner, fr) /* error writing */) {
|
|
if (fr) {
|
|
ast_log(LOG_WARNING, "Failed to write frame\n");
|
|
ast_frfree(fr);
|
|
}
|
|
goto return_failure;
|
|
}
|
|
|
|
if (fr) {
|
|
ast_frfree(fr);
|
|
}
|
|
}
|
|
|
|
if (whennext != s->lasttimeout) {
|
|
if (ast_channel_timingfd(s->owner) > -1) {
|
|
float samp_rate = (float) ast_format_rate(&s->fmt->format);
|
|
unsigned int rate;
|
|
|
|
rate = (unsigned int) roundf(samp_rate / ((float) whennext));
|
|
|
|
ast_settimeout(s->owner, rate, ast_fsread_audio, s);
|
|
} else {
|
|
ast_channel_streamid_set(s->owner, ast_sched_add(ast_channel_sched(s->owner), whennext / (ast_format_rate(&s->fmt->format) / 1000), ast_fsread_audio, s));
|
|
}
|
|
s->lasttimeout = whennext;
|
|
return FSREAD_SUCCESS_NOSCHED;
|
|
}
|
|
return FSREAD_SUCCESS_SCHED;
|
|
|
|
return_failure:
|
|
ast_channel_streamid_set(s->owner, -1);
|
|
ast_settimeout(s->owner, 0, NULL, NULL);
|
|
return FSREAD_FAILURE;
|
|
}
|
|
|
|
static int ast_fsread_audio(const void *data)
|
|
{
|
|
struct ast_filestream *fs = (struct ast_filestream *)data;
|
|
enum fsread_res res;
|
|
|
|
res = ast_readaudio_callback(fs);
|
|
|
|
if (res == FSREAD_SUCCESS_SCHED)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ast_fsread_video(const void *data);
|
|
|
|
static enum fsread_res ast_readvideo_callback(struct ast_filestream *s)
|
|
{
|
|
int whennext = 0;
|
|
|
|
while (!whennext) {
|
|
struct ast_frame *fr = read_frame(s, &whennext);
|
|
|
|
if (!fr /* stream complete */ || ast_write(s->owner, fr) /* error writing */) {
|
|
if (fr) {
|
|
ast_log(LOG_WARNING, "Failed to write frame\n");
|
|
ast_frfree(fr);
|
|
}
|
|
ast_channel_vstreamid_set(s->owner, -1);
|
|
return FSREAD_FAILURE;
|
|
}
|
|
|
|
if (fr) {
|
|
ast_frfree(fr);
|
|
}
|
|
}
|
|
|
|
if (whennext != s->lasttimeout) {
|
|
ast_channel_vstreamid_set(s->owner, ast_sched_add(ast_channel_sched(s->owner), whennext / (ast_format_rate(&s->fmt->format) / 1000), ast_fsread_video, s));
|
|
s->lasttimeout = whennext;
|
|
return FSREAD_SUCCESS_NOSCHED;
|
|
}
|
|
|
|
return FSREAD_SUCCESS_SCHED;
|
|
}
|
|
|
|
static int ast_fsread_video(const void *data)
|
|
{
|
|
struct ast_filestream *fs = (struct ast_filestream *)data;
|
|
enum fsread_res res;
|
|
|
|
res = ast_readvideo_callback(fs);
|
|
|
|
if (res == FSREAD_SUCCESS_SCHED)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ast_applystream(struct ast_channel *chan, struct ast_filestream *s)
|
|
{
|
|
s->owner = chan;
|
|
return 0;
|
|
}
|
|
|
|
int ast_playstream(struct ast_filestream *s)
|
|
{
|
|
enum fsread_res res;
|
|
|
|
if (AST_FORMAT_GET_TYPE(s->fmt->format.id) == AST_FORMAT_TYPE_AUDIO)
|
|
res = ast_readaudio_callback(s);
|
|
else
|
|
res = ast_readvideo_callback(s);
|
|
|
|
return (res == FSREAD_FAILURE) ? -1 : 0;
|
|
}
|
|
|
|
int ast_seekstream(struct ast_filestream *fs, off_t sample_offset, int whence)
|
|
{
|
|
return fs->fmt->seek(fs, sample_offset, whence);
|
|
}
|
|
|
|
int ast_truncstream(struct ast_filestream *fs)
|
|
{
|
|
return fs->fmt->trunc(fs);
|
|
}
|
|
|
|
off_t ast_tellstream(struct ast_filestream *fs)
|
|
{
|
|
return fs->fmt->tell(fs);
|
|
}
|
|
|
|
int ast_stream_fastforward(struct ast_filestream *fs, off_t ms)
|
|
{
|
|
return ast_seekstream(fs, ms * DEFAULT_SAMPLES_PER_MS, SEEK_CUR);
|
|
}
|
|
|
|
int ast_stream_rewind(struct ast_filestream *fs, off_t ms)
|
|
{
|
|
return ast_seekstream(fs, -ms * DEFAULT_SAMPLES_PER_MS, SEEK_CUR);
|
|
}
|
|
|
|
int ast_closestream(struct ast_filestream *f)
|
|
{
|
|
/* This used to destroy the filestream, but it now just decrements a refcount.
|
|
* We close the stream in order to quit queuing frames now, because we might
|
|
* change the writeformat, which could result in a subsequent write error, if
|
|
* the format is different. */
|
|
filestream_close(f);
|
|
ao2_ref(f, -1);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Look the various language-specific places where a file could exist.
|
|
*/
|
|
int ast_fileexists(const char *filename, const char *fmt, const char *preflang)
|
|
{
|
|
char *buf;
|
|
int buflen;
|
|
|
|
if (preflang == NULL)
|
|
preflang = "";
|
|
buflen = strlen(preflang) + strlen(filename) + 4; /* room for everything */
|
|
buf = alloca(buflen);
|
|
if (buf == NULL)
|
|
return 0;
|
|
return fileexists_core(filename, fmt, preflang, buf, buflen, NULL) ? 1 : 0;
|
|
}
|
|
|
|
int ast_filedelete(const char *filename, const char *fmt)
|
|
{
|
|
return filehelper(filename, NULL, fmt, ACTION_DELETE);
|
|
}
|
|
|
|
int ast_filerename(const char *filename, const char *filename2, const char *fmt)
|
|
{
|
|
return filehelper(filename, filename2, fmt, ACTION_RENAME);
|
|
}
|
|
|
|
int ast_filecopy(const char *filename, const char *filename2, const char *fmt)
|
|
{
|
|
return filehelper(filename, filename2, fmt, ACTION_COPY);
|
|
}
|
|
|
|
int ast_streamfile(struct ast_channel *chan, const char *filename, const char *preflang)
|
|
{
|
|
struct ast_filestream *fs;
|
|
struct ast_filestream *vfs=NULL;
|
|
char fmt[256];
|
|
off_t pos;
|
|
int seekattempt;
|
|
int res;
|
|
|
|
fs = ast_openstream(chan, filename, preflang);
|
|
if (!fs) {
|
|
ast_log(LOG_WARNING, "Unable to open %s (format %s): %s\n", filename, ast_getformatname_multiple(fmt, sizeof(fmt), ast_channel_nativeformats(chan)), strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
/* check to see if there is any data present (not a zero length file),
|
|
* done this way because there is no where for ast_openstream_full to
|
|
* return the file had no data. */
|
|
pos = ftello(fs->f);
|
|
seekattempt = fseeko(fs->f, -1, SEEK_END);
|
|
if (seekattempt) {
|
|
if (errno == EINVAL) {
|
|
/* Zero-length file, as opposed to a pipe */
|
|
return 0;
|
|
} else {
|
|
ast_seekstream(fs, 0, SEEK_SET);
|
|
}
|
|
} else {
|
|
fseeko(fs->f, pos, SEEK_SET);
|
|
}
|
|
|
|
vfs = ast_openvstream(chan, filename, preflang);
|
|
if (vfs) {
|
|
ast_debug(1, "Ooh, found a video stream, too, format %s\n", ast_getformatname(&vfs->fmt->format));
|
|
}
|
|
|
|
if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_MASQ_NOSTREAM))
|
|
fs->orig_chan_name = ast_strdup(ast_channel_name(chan));
|
|
if (ast_applystream(chan, fs))
|
|
return -1;
|
|
if (vfs && ast_applystream(chan, vfs))
|
|
return -1;
|
|
res = ast_playstream(fs);
|
|
if (!res && vfs)
|
|
res = ast_playstream(vfs);
|
|
ast_verb(3, "<%s> Playing '%s.%s' (language '%s')\n", ast_channel_name(chan), filename, ast_getformatname(ast_channel_writeformat(chan)), preflang ? preflang : "default");
|
|
|
|
return res;
|
|
}
|
|
|
|
struct ast_filestream *ast_readfile(const char *filename, const char *type, const char *comment, int flags, int check, mode_t mode)
|
|
{
|
|
FILE *bfile;
|
|
struct ast_format_def *f;
|
|
struct ast_filestream *fs = NULL;
|
|
char *fn;
|
|
int format_found = 0;
|
|
|
|
AST_RWLIST_RDLOCK(&formats);
|
|
|
|
AST_RWLIST_TRAVERSE(&formats, f, list) {
|
|
fs = NULL;
|
|
if (!exts_compare(f->exts, type))
|
|
continue;
|
|
else
|
|
format_found = 1;
|
|
|
|
fn = build_filename(filename, type);
|
|
errno = 0;
|
|
bfile = fopen(fn, "r");
|
|
|
|
if (!bfile || (fs = get_filestream(f, bfile)) == NULL || open_wrapper(fs) ) {
|
|
ast_log(LOG_WARNING, "Unable to open %s\n", fn);
|
|
if (fs) {
|
|
ast_closestream(fs);
|
|
}
|
|
fs = NULL;
|
|
bfile = NULL;
|
|
ast_free(fn);
|
|
break;
|
|
}
|
|
/* found it */
|
|
fs->trans = NULL;
|
|
fs->fmt = f;
|
|
fs->flags = flags;
|
|
fs->mode = mode;
|
|
fs->filename = ast_strdup(filename);
|
|
fs->vfs = NULL;
|
|
break;
|
|
}
|
|
|
|
AST_RWLIST_UNLOCK(&formats);
|
|
if (!format_found)
|
|
ast_log(LOG_WARNING, "No such format '%s'\n", type);
|
|
|
|
return fs;
|
|
}
|
|
|
|
struct ast_filestream *ast_writefile(const char *filename, const char *type, const char *comment, int flags, int check, mode_t mode)
|
|
{
|
|
int fd, myflags = 0;
|
|
/* compiler claims this variable can be used before initialization... */
|
|
FILE *bfile = NULL;
|
|
struct ast_format_def *f;
|
|
struct ast_filestream *fs = NULL;
|
|
char *buf = NULL;
|
|
size_t size = 0;
|
|
int format_found = 0;
|
|
|
|
AST_RWLIST_RDLOCK(&formats);
|
|
|
|
/* set the O_TRUNC flag if and only if there is no O_APPEND specified */
|
|
/* We really can't use O_APPEND as it will break WAV header updates */
|
|
if (flags & O_APPEND) {
|
|
flags &= ~O_APPEND;
|
|
} else {
|
|
myflags = O_TRUNC;
|
|
}
|
|
|
|
myflags |= O_WRONLY | O_CREAT;
|
|
|
|
/* XXX need to fix this - we should just do the fopen,
|
|
* not open followed by fdopen()
|
|
*/
|
|
AST_RWLIST_TRAVERSE(&formats, f, list) {
|
|
char *fn, *orig_fn = NULL;
|
|
if (fs)
|
|
break;
|
|
|
|
if (!exts_compare(f->exts, type))
|
|
continue;
|
|
else
|
|
format_found = 1;
|
|
|
|
fn = build_filename(filename, type);
|
|
fd = open(fn, flags | myflags, mode);
|
|
if (fd > -1) {
|
|
/* fdopen() the resulting file stream */
|
|
bfile = fdopen(fd, ((flags | myflags) & O_RDWR) ? "w+" : "w");
|
|
if (!bfile) {
|
|
ast_log(LOG_WARNING, "Whoa, fdopen failed: %s!\n", strerror(errno));
|
|
close(fd);
|
|
fd = -1;
|
|
}
|
|
}
|
|
|
|
if (ast_opt_cache_record_files && (fd > -1)) {
|
|
char *c;
|
|
|
|
fclose(bfile); /* this also closes fd */
|
|
/*
|
|
We touch orig_fn just as a place-holder so other things (like vmail) see the file is there.
|
|
What we are really doing is writing to record_cache_dir until we are done then we will mv the file into place.
|
|
*/
|
|
orig_fn = ast_strdupa(fn);
|
|
for (c = fn; *c; c++)
|
|
if (*c == '/')
|
|
*c = '_';
|
|
|
|
size = strlen(fn) + strlen(record_cache_dir) + 2;
|
|
buf = alloca(size);
|
|
strcpy(buf, record_cache_dir);
|
|
strcat(buf, "/");
|
|
strcat(buf, fn);
|
|
ast_free(fn);
|
|
fn = buf;
|
|
fd = open(fn, flags | myflags, mode);
|
|
if (fd > -1) {
|
|
/* fdopen() the resulting file stream */
|
|
bfile = fdopen(fd, ((flags | myflags) & O_RDWR) ? "w+" : "w");
|
|
if (!bfile) {
|
|
ast_log(LOG_WARNING, "Whoa, fdopen failed: %s!\n", strerror(errno));
|
|
close(fd);
|
|
fd = -1;
|
|
}
|
|
}
|
|
}
|
|
if (fd > -1) {
|
|
errno = 0;
|
|
fs = get_filestream(f, bfile);
|
|
if (fs) {
|
|
if ((fs->write_buffer = ast_malloc(32768))) {
|
|
setvbuf(fs->f, fs->write_buffer, _IOFBF, 32768);
|
|
}
|
|
}
|
|
if (!fs || rewrite_wrapper(fs, comment)) {
|
|
ast_log(LOG_WARNING, "Unable to rewrite %s\n", fn);
|
|
close(fd);
|
|
if (orig_fn) {
|
|
unlink(fn);
|
|
unlink(orig_fn);
|
|
}
|
|
if (fs) {
|
|
ast_closestream(fs);
|
|
fs = NULL;
|
|
}
|
|
continue;
|
|
}
|
|
fs->trans = NULL;
|
|
fs->fmt = f;
|
|
fs->flags = flags;
|
|
fs->mode = mode;
|
|
if (orig_fn) {
|
|
fs->realfilename = ast_strdup(orig_fn);
|
|
fs->filename = ast_strdup(fn);
|
|
} else {
|
|
fs->realfilename = NULL;
|
|
fs->filename = ast_strdup(filename);
|
|
}
|
|
fs->vfs = NULL;
|
|
/* If truncated, we'll be at the beginning; if not truncated, then append */
|
|
f->seek(fs, 0, SEEK_END);
|
|
} else if (errno != EEXIST) {
|
|
ast_log(LOG_WARNING, "Unable to open file %s: %s\n", fn, strerror(errno));
|
|
if (orig_fn)
|
|
unlink(orig_fn);
|
|
}
|
|
/* if buf != NULL then fn is already free and pointing to it */
|
|
if (!buf)
|
|
ast_free(fn);
|
|
}
|
|
|
|
AST_RWLIST_UNLOCK(&formats);
|
|
|
|
if (!format_found)
|
|
ast_log(LOG_WARNING, "No such format '%s'\n", type);
|
|
|
|
return fs;
|
|
}
|
|
|
|
/*!
|
|
* \brief the core of all waitstream() functions
|
|
*/
|
|
static int waitstream_core(struct ast_channel *c, const char *breakon,
|
|
const char *forward, const char *reverse, int skip_ms,
|
|
int audiofd, int cmdfd, const char *context)
|
|
{
|
|
const char *orig_chan_name = NULL;
|
|
int err = 0;
|
|
|
|
if (!breakon)
|
|
breakon = "";
|
|
if (!forward)
|
|
forward = "";
|
|
if (!reverse)
|
|
reverse = "";
|
|
|
|
/* Switch the channel to end DTMF frame only. waitstream_core doesn't care about the start of DTMF. */
|
|
ast_set_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
|
|
if (ast_test_flag(ast_channel_flags(c), AST_FLAG_MASQ_NOSTREAM))
|
|
orig_chan_name = ast_strdupa(ast_channel_name(c));
|
|
|
|
while (ast_channel_stream(c)) {
|
|
int res;
|
|
int ms;
|
|
|
|
if (orig_chan_name && strcasecmp(orig_chan_name, ast_channel_name(c))) {
|
|
ast_stopstream(c);
|
|
err = 1;
|
|
break;
|
|
}
|
|
|
|
ms = ast_sched_wait(ast_channel_sched(c));
|
|
|
|
if (ms < 0 && !ast_channel_timingfunc(c)) {
|
|
ast_stopstream(c);
|
|
break;
|
|
}
|
|
if (ms < 0)
|
|
ms = 1000;
|
|
if (cmdfd < 0) {
|
|
res = ast_waitfor(c, ms);
|
|
if (res < 0) {
|
|
ast_log(LOG_WARNING, "Select failed (%s)\n", strerror(errno));
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
return res;
|
|
}
|
|
} else {
|
|
int outfd;
|
|
struct ast_channel *rchan = ast_waitfor_nandfds(&c, 1, &cmdfd, (cmdfd > -1) ? 1 : 0, NULL, &outfd, &ms);
|
|
if (!rchan && (outfd < 0) && (ms)) {
|
|
/* Continue */
|
|
if (errno == EINTR)
|
|
continue;
|
|
ast_log(LOG_WARNING, "Wait failed (%s)\n", strerror(errno));
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
return -1;
|
|
} else if (outfd > -1) { /* this requires cmdfd set */
|
|
/* The FD we were watching has something waiting */
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
return 1;
|
|
}
|
|
/* if rchan is set, it is 'c' */
|
|
res = rchan ? 1 : 0; /* map into 'res' values */
|
|
}
|
|
if (res > 0) {
|
|
struct ast_frame *fr = ast_read(c);
|
|
if (!fr) {
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
return -1;
|
|
}
|
|
switch (fr->frametype) {
|
|
case AST_FRAME_DTMF_END:
|
|
if (context) {
|
|
const char exten[2] = { fr->subclass.integer, '\0' };
|
|
if (ast_exists_extension(c, context, exten, 1,
|
|
S_COR(ast_channel_caller(c)->id.number.valid, ast_channel_caller(c)->id.number.str, NULL))) {
|
|
res = fr->subclass.integer;
|
|
ast_frfree(fr);
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
return res;
|
|
}
|
|
} else {
|
|
res = fr->subclass.integer;
|
|
if (strchr(forward, res)) {
|
|
int eoftest;
|
|
ast_stream_fastforward(ast_channel_stream(c), skip_ms);
|
|
eoftest = fgetc(ast_channel_stream(c)->f);
|
|
if (feof(ast_channel_stream(c)->f)) {
|
|
ast_stream_rewind(ast_channel_stream(c), skip_ms);
|
|
} else {
|
|
ungetc(eoftest, ast_channel_stream(c)->f);
|
|
}
|
|
} else if (strchr(reverse, res)) {
|
|
ast_stream_rewind(ast_channel_stream(c), skip_ms);
|
|
} else if (strchr(breakon, res)) {
|
|
ast_frfree(fr);
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
return res;
|
|
}
|
|
}
|
|
break;
|
|
case AST_FRAME_CONTROL:
|
|
switch (fr->subclass.integer) {
|
|
case AST_CONTROL_HANGUP:
|
|
case AST_CONTROL_BUSY:
|
|
case AST_CONTROL_CONGESTION:
|
|
ast_frfree(fr);
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
return -1;
|
|
case AST_CONTROL_RINGING:
|
|
case AST_CONTROL_ANSWER:
|
|
case AST_CONTROL_VIDUPDATE:
|
|
case AST_CONTROL_SRCUPDATE:
|
|
case AST_CONTROL_SRCCHANGE:
|
|
case AST_CONTROL_HOLD:
|
|
case AST_CONTROL_UNHOLD:
|
|
case AST_CONTROL_CONNECTED_LINE:
|
|
case AST_CONTROL_REDIRECTING:
|
|
case AST_CONTROL_AOC:
|
|
case AST_CONTROL_UPDATE_RTP_PEER:
|
|
case AST_CONTROL_PVT_CAUSE_CODE:
|
|
case -1:
|
|
/* Unimportant */
|
|
break;
|
|
default:
|
|
ast_log(LOG_WARNING, "Unexpected control subclass '%d'\n", fr->subclass.integer);
|
|
}
|
|
break;
|
|
case AST_FRAME_VOICE:
|
|
/* Write audio if appropriate */
|
|
if (audiofd > -1) {
|
|
if (write(audiofd, fr->data.ptr, fr->datalen) < 0) {
|
|
ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
|
|
}
|
|
}
|
|
default:
|
|
/* Ignore all others */
|
|
break;
|
|
}
|
|
ast_frfree(fr);
|
|
}
|
|
ast_sched_runq(ast_channel_sched(c));
|
|
}
|
|
|
|
ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
|
|
|
|
return (err || ast_channel_softhangup_internal_flag(c)) ? -1 : 0;
|
|
}
|
|
|
|
int ast_waitstream_fr(struct ast_channel *c, const char *breakon, const char *forward, const char *reverse, int ms)
|
|
{
|
|
return waitstream_core(c, breakon, forward, reverse, ms,
|
|
-1 /* no audiofd */, -1 /* no cmdfd */, NULL /* no context */);
|
|
}
|
|
|
|
int ast_waitstream(struct ast_channel *c, const char *breakon)
|
|
{
|
|
return waitstream_core(c, breakon, NULL, NULL, 0, -1, -1, NULL);
|
|
}
|
|
|
|
int ast_waitstream_full(struct ast_channel *c, const char *breakon, int audiofd, int cmdfd)
|
|
{
|
|
return waitstream_core(c, breakon, NULL, NULL, 0,
|
|
audiofd, cmdfd, NULL /* no context */);
|
|
}
|
|
|
|
int ast_waitstream_exten(struct ast_channel *c, const char *context)
|
|
{
|
|
/* Waitstream, with return in the case of a valid 1 digit extension */
|
|
/* in the current or specified context being pressed */
|
|
|
|
if (!context)
|
|
context = ast_channel_context(c);
|
|
return waitstream_core(c, NULL, NULL, NULL, 0,
|
|
-1, -1, context);
|
|
}
|
|
|
|
/*
|
|
* if the file name is non-empty, try to play it.
|
|
* Return 0 if success, -1 if error, digit if interrupted by a digit.
|
|
* If digits == "" then we can simply check for non-zero.
|
|
*/
|
|
int ast_stream_and_wait(struct ast_channel *chan, const char *file, const char *digits)
|
|
{
|
|
int res = 0;
|
|
if (!ast_strlen_zero(file)) {
|
|
ast_test_suite_event_notify("PLAYBACK", "Message: %s\r\nChannel: %s", file, ast_channel_name(chan));
|
|
res = ast_streamfile(chan, file, ast_channel_language(chan));
|
|
if (!res) {
|
|
res = ast_waitstream(chan, digits);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
char *ast_format_str_reduce(char *fmts)
|
|
{
|
|
struct ast_format_def *f;
|
|
struct ast_format_def *fmts_ptr[AST_MAX_FORMATS];
|
|
char *fmts_str[AST_MAX_FORMATS];
|
|
char *stringp, *type;
|
|
char *orig = fmts;
|
|
int i, j, x, first, found = 0;
|
|
int len = strlen(fmts) + 1;
|
|
int res;
|
|
|
|
if (AST_RWLIST_RDLOCK(&formats)) {
|
|
ast_log(LOG_WARNING, "Unable to lock format list\n");
|
|
return NULL;
|
|
}
|
|
|
|
stringp = ast_strdupa(fmts);
|
|
|
|
for (x = 0; (type = strsep(&stringp, "|")) && x < AST_MAX_FORMATS; x++) {
|
|
AST_RWLIST_TRAVERSE(&formats, f, list) {
|
|
if (exts_compare(f->exts, type)) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
fmts_str[x] = type;
|
|
if (found) {
|
|
fmts_ptr[x] = f;
|
|
} else {
|
|
fmts_ptr[x] = NULL;
|
|
}
|
|
}
|
|
AST_RWLIST_UNLOCK(&formats);
|
|
|
|
first = 1;
|
|
for (i = 0; i < x; i++) {
|
|
/* ignore invalid entries */
|
|
if (!fmts_ptr[i]) {
|
|
ast_log(LOG_WARNING, "ignoring unknown format '%s'\n", fmts_str[i]);
|
|
continue;
|
|
}
|
|
|
|
/* special handling for the first entry */
|
|
if (first) {
|
|
res = snprintf(fmts, len, "%s", fmts_str[i]);
|
|
fmts += res;
|
|
len -= res;
|
|
first = 0;
|
|
continue;
|
|
}
|
|
|
|
found = 0;
|
|
for (j = 0; j < i; j++) {
|
|
/* this is a duplicate */
|
|
if (fmts_ptr[j] == fmts_ptr[i]) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
res = snprintf(fmts, len, "|%s", fmts_str[i]);
|
|
fmts += res;
|
|
len -= res;
|
|
}
|
|
}
|
|
|
|
if (first) {
|
|
ast_log(LOG_WARNING, "no known formats found in format list (%s)\n", orig);
|
|
return NULL;
|
|
}
|
|
|
|
return orig;
|
|
}
|
|
|
|
static char *handle_cli_core_show_file_formats(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
#define FORMAT "%-10s %-10s %-20s\n"
|
|
#define FORMAT2 "%-10s %-10s %-20s\n"
|
|
struct ast_format_def *f;
|
|
int count_fmt = 0;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "core show file formats";
|
|
e->usage =
|
|
"Usage: core show file formats\n"
|
|
" Displays currently registered file formats (if any).\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
if (a->argc != 4)
|
|
return CLI_SHOWUSAGE;
|
|
|
|
ast_cli(a->fd, FORMAT, "Format", "Name", "Extensions");
|
|
ast_cli(a->fd, FORMAT, "------", "----", "----------");
|
|
|
|
AST_RWLIST_RDLOCK(&formats);
|
|
AST_RWLIST_TRAVERSE(&formats, f, list) {
|
|
ast_cli(a->fd, FORMAT2, ast_getformatname(&f->format), f->name, f->exts);
|
|
count_fmt++;
|
|
}
|
|
AST_RWLIST_UNLOCK(&formats);
|
|
ast_cli(a->fd, "%d file formats registered.\n", count_fmt);
|
|
return CLI_SUCCESS;
|
|
#undef FORMAT
|
|
#undef FORMAT2
|
|
}
|
|
|
|
static struct ast_cli_entry cli_file[] = {
|
|
AST_CLI_DEFINE(handle_cli_core_show_file_formats, "Displays file formats")
|
|
};
|
|
|
|
int ast_file_init(void)
|
|
{
|
|
ast_cli_register_multiple(cli_file, ARRAY_LEN(cli_file));
|
|
return 0;
|
|
}
|