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00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
00029
00030 #include <sys/types.h>
00031 #include <errno.h>
00032 #include <unistd.h>
00033 #include <stdlib.h>
00034 #include <string.h>
00035 #include <stdio.h>
00036 #include <fcntl.h>
00037 #include <dirent.h>
00038 #include <sys/types.h>
00039 #include <sys/stat.h>
00040
00041 #include "asterisk/frame.h"
00042 #include "asterisk/file.h"
00043 #include "asterisk/cli.h"
00044 #include "asterisk/logger.h"
00045 #include "asterisk/channel.h"
00046 #include "asterisk/sched.h"
00047 #include "asterisk/options.h"
00048 #include "asterisk/translate.h"
00049 #include "asterisk/utils.h"
00050 #include "asterisk/lock.h"
00051 #include "asterisk/app.h"
00052 #include "asterisk/pbx.h"
00053 #include "asterisk/linkedlists.h"
00054 #include "asterisk/module.h"
00055
00056
00057
00058
00059
00060
00061
00062
00063
00064 int ast_language_is_prefix = 1;
00065
00066 static AST_RWLIST_HEAD_STATIC(formats, ast_format);
00067
00068 int __ast_format_register(const struct ast_format *f, struct ast_module *mod)
00069 {
00070 struct ast_format *tmp;
00071
00072 AST_RWLIST_WRLOCK(&formats);
00073 AST_RWLIST_TRAVERSE(&formats, tmp, list) {
00074 if (!strcasecmp(f->name, tmp->name)) {
00075 AST_RWLIST_UNLOCK(&formats);
00076 ast_log(LOG_WARNING, "Tried to register '%s' format, already registered\n", f->name);
00077 return -1;
00078 }
00079 }
00080 if (!(tmp = ast_calloc(1, sizeof(*tmp)))) {
00081 AST_RWLIST_UNLOCK(&formats);
00082 return -1;
00083 }
00084 *tmp = *f;
00085 tmp->module = mod;
00086 if (tmp->buf_size) {
00087
00088
00089
00090
00091 struct _test_align { void *a, *b; } p;
00092 int align = (char *)&p.b - (char *)&p.a;
00093 tmp->buf_size = ((f->buf_size + align - 1)/align)*align;
00094 }
00095
00096 memset(&tmp->list, 0, sizeof(tmp->list));
00097
00098 AST_RWLIST_INSERT_HEAD(&formats, tmp, list);
00099 AST_RWLIST_UNLOCK(&formats);
00100 if (option_verbose > 1)
00101 ast_verbose( VERBOSE_PREFIX_2 "Registered file format %s, extension(s) %s\n", f->name, f->exts);
00102
00103 return 0;
00104 }
00105
00106 int ast_format_unregister(const char *name)
00107 {
00108 struct ast_format *tmp;
00109 int res = -1;
00110
00111 AST_RWLIST_WRLOCK(&formats);
00112 AST_RWLIST_TRAVERSE_SAFE_BEGIN(&formats, tmp, list) {
00113 if (!strcasecmp(name, tmp->name)) {
00114 AST_RWLIST_REMOVE_CURRENT(&formats, list);
00115 free(tmp);
00116 res = 0;
00117 }
00118 }
00119 AST_RWLIST_TRAVERSE_SAFE_END
00120 AST_RWLIST_UNLOCK(&formats);
00121
00122 if (!res) {
00123 if (option_verbose > 1)
00124 ast_verbose( VERBOSE_PREFIX_2 "Unregistered format %s\n", name);
00125 } else
00126 ast_log(LOG_WARNING, "Tried to unregister format %s, already unregistered\n", name);
00127
00128 return res;
00129 }
00130
00131 int ast_stopstream(struct ast_channel *tmp)
00132 {
00133 ast_channel_lock(tmp);
00134
00135
00136 if (tmp->stream) {
00137 ast_closestream(tmp->stream);
00138 tmp->stream = NULL;
00139 if (tmp->oldwriteformat && ast_set_write_format(tmp, tmp->oldwriteformat))
00140 ast_log(LOG_WARNING, "Unable to restore format back to %d\n", tmp->oldwriteformat);
00141 }
00142
00143 if (tmp->vstream != NULL) {
00144 ast_closestream(tmp->vstream);
00145 tmp->vstream = NULL;
00146 }
00147
00148 ast_channel_unlock(tmp);
00149
00150 return 0;
00151 }
00152
00153 int ast_writestream(struct ast_filestream *fs, struct ast_frame *f)
00154 {
00155 int res = -1;
00156 int alt = 0;
00157 if (f->frametype == AST_FRAME_VIDEO) {
00158 if (fs->fmt->format < AST_FORMAT_MAX_AUDIO) {
00159
00160 if (!fs->vfs && fs->filename) {
00161 const char *type = ast_getformatname(f->subclass & ~0x1);
00162 fs->vfs = ast_writefile(fs->filename, type, NULL, fs->flags, 0, fs->mode);
00163 ast_log(LOG_DEBUG, "Opened video output file\n");
00164 }
00165 if (fs->vfs)
00166 return ast_writestream(fs->vfs, f);
00167
00168 return 0;
00169 } else {
00170
00171 alt = 1;
00172 }
00173 } else if (f->frametype != AST_FRAME_VOICE) {
00174 ast_log(LOG_WARNING, "Tried to write non-voice frame\n");
00175 return -1;
00176 }
00177 if (((fs->fmt->format | alt) & f->subclass) == f->subclass) {
00178 res = fs->fmt->write(fs, f);
00179 if (res < 0)
00180 ast_log(LOG_WARNING, "Natural write failed\n");
00181 else if (res > 0)
00182 ast_log(LOG_WARNING, "Huh??\n");
00183 } else {
00184
00185
00186 if (fs->trans && f->subclass != fs->lastwriteformat) {
00187 ast_translator_free_path(fs->trans);
00188 fs->trans = NULL;
00189 }
00190 if (!fs->trans)
00191 fs->trans = ast_translator_build_path(fs->fmt->format, f->subclass);
00192 if (!fs->trans)
00193 ast_log(LOG_WARNING, "Unable to translate to format %s, source format %s\n",
00194 fs->fmt->name, ast_getformatname(f->subclass));
00195 else {
00196 struct ast_frame *trf;
00197 fs->lastwriteformat = f->subclass;
00198
00199 trf = ast_translate(fs->trans, f, 0);
00200 if (trf) {
00201 res = fs->fmt->write(fs, trf);
00202 ast_frfree(trf);
00203 if (res)
00204 ast_log(LOG_WARNING, "Translated frame write failed\n");
00205 } else
00206 res = 0;
00207 }
00208 }
00209 return res;
00210 }
00211
00212 static int copy(const char *infile, const char *outfile)
00213 {
00214 int ifd, ofd, len;
00215 char buf[4096];
00216
00217 if ((ifd = open(infile, O_RDONLY)) < 0) {
00218 ast_log(LOG_WARNING, "Unable to open %s in read-only mode\n", infile);
00219 return -1;
00220 }
00221 if ((ofd = open(outfile, O_WRONLY | O_TRUNC | O_CREAT, 0600)) < 0) {
00222 ast_log(LOG_WARNING, "Unable to open %s in write-only mode\n", outfile);
00223 close(ifd);
00224 return -1;
00225 }
00226 while ( (len = read(ifd, buf, sizeof(buf)) ) ) {
00227 int res;
00228 if (len < 0) {
00229 ast_log(LOG_WARNING, "Read failed on %s: %s\n", infile, strerror(errno));
00230 break;
00231 }
00232
00233 res = write(ofd, buf, len);
00234 if (res != len) {
00235 ast_log(LOG_WARNING, "Write failed on %s (%d of %d): %s\n", outfile, res, len, strerror(errno));
00236 len = -1;
00237 break;
00238 }
00239 }
00240 close(ifd);
00241 close(ofd);
00242 if (len < 0) {
00243 unlink(outfile);
00244 return -1;
00245 }
00246 return 0;
00247 }
00248
00249
00250
00251
00252
00253
00254
00255 static char *build_filename(const char *filename, const char *ext)
00256 {
00257 char *fn = NULL;
00258
00259 if (!strcmp(ext, "wav49"))
00260 ext = "WAV";
00261
00262 if (filename[0] == '/')
00263 asprintf(&fn, "%s.%s", filename, ext);
00264 else
00265 asprintf(&fn, "%s/sounds/%s.%s",
00266 ast_config_AST_DATA_DIR, filename, ext);
00267 return fn;
00268 }
00269
00270
00271
00272 static int exts_compare(const char *exts, const char *type)
00273 {
00274 char tmp[256];
00275 char *stringp = tmp, *ext;
00276
00277 ast_copy_string(tmp, exts, sizeof(tmp));
00278 while ((ext = strsep(&stringp, "|"))) {
00279 if (!strcmp(ext, type))
00280 return 1;
00281 }
00282
00283 return 0;
00284 }
00285
00286 static struct ast_filestream *get_filestream(struct ast_format *fmt, FILE *bfile)
00287 {
00288 struct ast_filestream *s;
00289
00290 int l = sizeof(*s) + fmt->buf_size + fmt->desc_size;
00291 if ( (s = ast_calloc(1, l)) == NULL)
00292 return NULL;
00293 s->fmt = fmt;
00294 s->f = bfile;
00295
00296 if (fmt->desc_size)
00297 s->_private = ((char *)(s+1)) + fmt->buf_size;
00298 if (fmt->buf_size)
00299 s->buf = (char *)(s+1);
00300 s->fr.src = fmt->name;
00301 return s;
00302 }
00303
00304
00305
00306
00307
00308 enum wrap_fn { WRAP_OPEN, WRAP_REWRITE };
00309
00310 static int fn_wrapper(struct ast_filestream *s, const char *comment, enum wrap_fn mode)
00311 {
00312 struct ast_format *f = s->fmt;
00313 int ret = -1;
00314
00315 if (mode == WRAP_OPEN && f->open && f->open(s))
00316 ast_log(LOG_WARNING, "Unable to open format %s\n", f->name);
00317 else if (mode == WRAP_REWRITE && f->rewrite && f->rewrite(s, comment))
00318 ast_log(LOG_WARNING, "Unable to rewrite format %s\n", f->name);
00319 else {
00320
00321 ast_module_ref(f->module);
00322 ret = 0;
00323 }
00324 return ret;
00325 }
00326
00327 static int rewrite_wrapper(struct ast_filestream *s, const char *comment)
00328 {
00329 return fn_wrapper(s, comment, WRAP_REWRITE);
00330 }
00331
00332 static int open_wrapper(struct ast_filestream *s)
00333 {
00334 return fn_wrapper(s, NULL, WRAP_OPEN);
00335 }
00336
00337 enum file_action {
00338 ACTION_EXISTS = 1,
00339 ACTION_DELETE,
00340 ACTION_RENAME,
00341 ACTION_OPEN,
00342 ACTION_COPY
00343 };
00344
00345
00346
00347
00348
00349
00350
00351
00352
00353
00354 static int ast_filehelper(const char *filename, const void *arg2, const char *fmt, const enum file_action action)
00355 {
00356 struct ast_format *f;
00357 int res = (action == ACTION_EXISTS) ? 0 : -1;
00358
00359 AST_RWLIST_RDLOCK(&formats);
00360
00361 AST_RWLIST_TRAVERSE(&formats, f, list) {
00362 char *stringp, *ext = NULL;
00363
00364 if (fmt && !exts_compare(f->exts, fmt))
00365 continue;
00366
00367
00368
00369
00370
00371 stringp = ast_strdupa(f->exts);
00372 while ( (ext = strsep(&stringp, "|")) ) {
00373 struct stat st;
00374 char *fn = build_filename(filename, ext);
00375
00376 if (fn == NULL)
00377 continue;
00378
00379 if ( stat(fn, &st) ) {
00380 free(fn);
00381 continue;
00382 }
00383
00384
00385
00386 if (action == ACTION_OPEN) {
00387 struct ast_channel *chan = (struct ast_channel *)arg2;
00388 FILE *bfile;
00389 struct ast_filestream *s;
00390
00391 if ( !(chan->writeformat & f->format) &&
00392 !(f->format >= AST_FORMAT_MAX_AUDIO && fmt)) {
00393 free(fn);
00394 continue;
00395 }
00396 if ( (bfile = fopen(fn, "r")) == NULL) {
00397 free(fn);
00398 continue;
00399 }
00400 s = get_filestream(f, bfile);
00401 if (!s) {
00402 fclose(bfile);
00403 free(fn);
00404 continue;
00405 }
00406 if (open_wrapper(s)) {
00407 fclose(bfile);
00408 free(fn);
00409 free(s);
00410 continue;
00411 }
00412
00413 res = 1;
00414 s->lasttimeout = -1;
00415 s->fmt = f;
00416 s->trans = NULL;
00417 s->filename = NULL;
00418 if (s->fmt->format < AST_FORMAT_MAX_AUDIO) {
00419 if (chan->stream)
00420 ast_closestream(chan->stream);
00421 chan->stream = s;
00422 } else {
00423 if (chan->vstream)
00424 ast_closestream(chan->vstream);
00425 chan->vstream = s;
00426 }
00427 free(fn);
00428 break;
00429 }
00430 switch (action) {
00431 case ACTION_OPEN:
00432 break;
00433
00434 case ACTION_EXISTS:
00435 res |= f->format;
00436 break;
00437
00438 case ACTION_DELETE:
00439 if ( (res = unlink(fn)) )
00440 ast_log(LOG_WARNING, "unlink(%s) failed: %s\n", fn, strerror(errno));
00441 break;
00442
00443 case ACTION_RENAME:
00444 case ACTION_COPY: {
00445 char *nfn = build_filename((const char *)arg2, ext);
00446 if (!nfn)
00447 ast_log(LOG_WARNING, "Out of memory\n");
00448 else {
00449 res = action == ACTION_COPY ? copy(fn, nfn) : rename(fn, nfn);
00450 if (res)
00451 ast_log(LOG_WARNING, "%s(%s,%s) failed: %s\n",
00452 action == ACTION_COPY ? "copy" : "rename",
00453 fn, nfn, strerror(errno));
00454 free(nfn);
00455 }
00456 }
00457 break;
00458
00459 default:
00460 ast_log(LOG_WARNING, "Unknown helper %d\n", action);
00461 }
00462 free(fn);
00463 }
00464 }
00465 AST_RWLIST_UNLOCK(&formats);
00466 return res;
00467 }
00468
00469 static int is_absolute_path(const char *filename)
00470 {
00471 return filename[0] == '/';
00472 }
00473
00474 static int fileexists_test(const char *filename, const char *fmt, const char *lang,
00475 char *buf, int buflen)
00476 {
00477 if (buf == NULL) {
00478 return -1;
00479 }
00480
00481 if (ast_language_is_prefix) {
00482 if (lang) {
00483 snprintf(buf, buflen, "%s/%s", lang, filename);
00484 } else {
00485 snprintf(buf, buflen, "%s", filename);
00486 }
00487 } else {
00488 strcpy(buf, filename);
00489 if (lang) {
00490
00491 const char *c = strrchr(filename, '/');
00492 int offset = c ? c - filename + 1 : 0;
00493 snprintf(buf + offset, buflen - offset, "%s/%s", lang, filename + offset);
00494 }
00495 }
00496
00497 return ast_filehelper(buf, NULL, fmt, ACTION_EXISTS);
00498 }
00499
00500
00501
00502
00503
00504
00505
00506
00507
00508
00509
00510
00511 static int fileexists_core(const char *filename, const char *fmt, const char *preflang,
00512 char *buf, int buflen)
00513 {
00514 int res = -1;
00515 char *lang = NULL;
00516
00517 if (buf == NULL) {
00518 return -1;
00519 }
00520
00521 if (is_absolute_path(filename)) {
00522 ast_copy_string(buf, filename, buflen);
00523 return ast_filehelper(buf, NULL, fmt, ACTION_EXISTS);
00524 }
00525
00526
00527
00528
00529
00530
00531
00532
00533
00534 if (!ast_strlen_zero(preflang)) {
00535
00536 if ((res = fileexists_test(filename, fmt, preflang, buf, buflen)) > 0) {
00537 return res;
00538 } else {
00539
00540 char *postfix = NULL;
00541 postfix = lang = ast_strdupa(preflang);
00542
00543 strsep(&postfix, "_");
00544 if (postfix) {
00545 if ((res = fileexists_test(filename, fmt, lang, buf, buflen)) > 0) {
00546 return res;
00547 }
00548 }
00549 }
00550 }
00551
00552
00553 if ((res = fileexists_test(filename, fmt, NULL, buf, buflen)) > 0) {
00554 return res;
00555 }
00556
00557
00558 if ((ast_strlen_zero(preflang) || strcmp(preflang, DEFAULT_LANGUAGE)) && (ast_strlen_zero(lang) || strcmp(lang, DEFAULT_LANGUAGE))) {
00559 if ((res = fileexists_test(filename, fmt, DEFAULT_LANGUAGE, buf, buflen)) > 0) {
00560 return res;
00561 }
00562 }
00563
00564 return 0;
00565 }
00566
00567 struct ast_filestream *ast_openstream(struct ast_channel *chan, const char *filename, const char *preflang)
00568 {
00569 return ast_openstream_full(chan, filename, preflang, 0);
00570 }
00571
00572 struct ast_filestream *ast_openstream_full(struct ast_channel *chan, const char *filename, const char *preflang, int asis)
00573 {
00574
00575
00576
00577
00578
00579 int fmts, res, buflen;
00580 char *buf;
00581
00582 if (!asis) {
00583
00584 ast_stopstream(chan);
00585 if (chan->generator)
00586 ast_deactivate_generator(chan);
00587 }
00588 if (preflang == NULL)
00589 preflang = "";
00590 buflen = strlen(preflang) + strlen(filename) + 4;
00591 buf = alloca(buflen);
00592 if (buf == NULL)
00593 return NULL;
00594 fmts = fileexists_core(filename, NULL, preflang, buf, buflen);
00595 if (fmts > 0)
00596 fmts &= AST_FORMAT_AUDIO_MASK;
00597 if (fmts < 1) {
00598 ast_log(LOG_WARNING, "File %s does not exist in any format\n", filename);
00599 return NULL;
00600 }
00601 chan->oldwriteformat = chan->writeformat;
00602
00603 res = ast_set_write_format(chan, fmts);
00604 res = ast_filehelper(buf, chan, NULL, ACTION_OPEN);
00605 if (res >= 0)
00606 return chan->stream;
00607 return NULL;
00608 }
00609
00610 struct ast_filestream *ast_openvstream(struct ast_channel *chan, const char *filename, const char *preflang)
00611 {
00612
00613
00614
00615 unsigned int format;
00616 char *buf;
00617 int buflen;
00618
00619 if (preflang == NULL)
00620 preflang = "";
00621 buflen = strlen(preflang) + strlen(filename) + 4;
00622 buf = alloca(buflen);
00623 if (buf == NULL)
00624 return NULL;
00625
00626 for (format = AST_FORMAT_MAX_AUDIO << 1; format <= AST_FORMAT_MAX_VIDEO; format = format << 1) {
00627 int fd;
00628 const char *fmt;
00629
00630 if (!(chan->nativeformats & format))
00631 continue;
00632 fmt = ast_getformatname(format);
00633 if ( fileexists_core(filename, fmt, preflang, buf, buflen) < 1)
00634 continue;
00635 fd = ast_filehelper(buf, chan, fmt, ACTION_OPEN);
00636 if (fd >= 0)
00637 return chan->vstream;
00638 ast_log(LOG_WARNING, "File %s has video but couldn't be opened\n", filename);
00639 }
00640 return NULL;
00641 }
00642
00643 struct ast_frame *ast_readframe(struct ast_filestream *s)
00644 {
00645 struct ast_frame *f = NULL;
00646 int whennext = 0;
00647 if (s && s->fmt)
00648 f = s->fmt->read(s, &whennext);
00649 return f;
00650 }
00651
00652 enum fsread_res {
00653 FSREAD_FAILURE,
00654 FSREAD_SUCCESS_SCHED,
00655 FSREAD_SUCCESS_NOSCHED,
00656 };
00657
00658 static int ast_fsread_audio(const void *data);
00659
00660 static enum fsread_res ast_readaudio_callback(struct ast_filestream *s)
00661 {
00662 int whennext = 0;
00663
00664 while (!whennext) {
00665 struct ast_frame *fr;
00666
00667 if (s->orig_chan_name && strcasecmp(s->owner->name, s->orig_chan_name))
00668 goto return_failure;
00669
00670 fr = s->fmt->read(s, &whennext);
00671 if (!fr || ast_write(s->owner, fr) ) {
00672 if (fr)
00673 ast_log(LOG_WARNING, "Failed to write frame\n");
00674 goto return_failure;
00675 }
00676 }
00677 if (whennext != s->lasttimeout) {
00678 #ifdef HAVE_ZAPTEL
00679 if (s->owner->timingfd > -1)
00680 ast_settimeout(s->owner, whennext, ast_fsread_audio, s);
00681 else
00682 #endif
00683 s->owner->streamid = ast_sched_add(s->owner->sched, whennext/8, ast_fsread_audio, s);
00684 s->lasttimeout = whennext;
00685 return FSREAD_SUCCESS_NOSCHED;
00686 }
00687 return FSREAD_SUCCESS_SCHED;
00688
00689 return_failure:
00690 s->owner->streamid = -1;
00691 #ifdef HAVE_ZAPTEL
00692 ast_settimeout(s->owner, 0, NULL, NULL);
00693 #endif
00694 return FSREAD_FAILURE;
00695 }
00696
00697 static int ast_fsread_audio(const void *data)
00698 {
00699 struct ast_filestream *fs = (struct ast_filestream *)data;
00700 enum fsread_res res;
00701
00702 res = ast_readaudio_callback(fs);
00703
00704 if (res == FSREAD_SUCCESS_SCHED)
00705 return 1;
00706
00707 return 0;
00708 }
00709
00710 static int ast_fsread_video(const void *data);
00711
00712 static enum fsread_res ast_readvideo_callback(struct ast_filestream *s)
00713 {
00714 int whennext = 0;
00715
00716 while (!whennext) {
00717 struct ast_frame *fr = s->fmt->read(s, &whennext);
00718 if (!fr || ast_write(s->owner, fr)) {
00719 if (fr)
00720 ast_log(LOG_WARNING, "Failed to write frame\n");
00721 s->owner->vstreamid = -1;
00722 return FSREAD_FAILURE;
00723 }
00724 }
00725
00726 if (whennext != s->lasttimeout) {
00727 s->owner->vstreamid = ast_sched_add(s->owner->sched, whennext / 8,
00728 ast_fsread_video, s);
00729 s->lasttimeout = whennext;
00730 return FSREAD_SUCCESS_NOSCHED;
00731 }
00732
00733 return FSREAD_SUCCESS_SCHED;
00734 }
00735
00736 static int ast_fsread_video(const void *data)
00737 {
00738 struct ast_filestream *fs = (struct ast_filestream *)data;
00739 enum fsread_res res;
00740
00741 res = ast_readvideo_callback(fs);
00742
00743 if (res == FSREAD_SUCCESS_SCHED)
00744 return 1;
00745
00746 return 0;
00747 }
00748
00749 int ast_applystream(struct ast_channel *chan, struct ast_filestream *s)
00750 {
00751 s->owner = chan;
00752 return 0;
00753 }
00754
00755 int ast_playstream(struct ast_filestream *s)
00756 {
00757 enum fsread_res res;
00758
00759 if (s->fmt->format < AST_FORMAT_MAX_AUDIO)
00760 res = ast_readaudio_callback(s);
00761 else
00762 res = ast_readvideo_callback(s);
00763
00764 return (res == FSREAD_FAILURE) ? -1 : 0;
00765 }
00766
00767 int ast_seekstream(struct ast_filestream *fs, off_t sample_offset, int whence)
00768 {
00769 return fs->fmt->seek(fs, sample_offset, whence);
00770 }
00771
00772 int ast_truncstream(struct ast_filestream *fs)
00773 {
00774 return fs->fmt->trunc(fs);
00775 }
00776
00777 off_t ast_tellstream(struct ast_filestream *fs)
00778 {
00779 return fs->fmt->tell(fs);
00780 }
00781
00782 int ast_stream_fastforward(struct ast_filestream *fs, off_t ms)
00783 {
00784 return ast_seekstream(fs, ms * DEFAULT_SAMPLES_PER_MS, SEEK_CUR);
00785 }
00786
00787 int ast_stream_rewind(struct ast_filestream *fs, off_t ms)
00788 {
00789 return ast_seekstream(fs, -ms * DEFAULT_SAMPLES_PER_MS, SEEK_CUR);
00790 }
00791
00792 int ast_closestream(struct ast_filestream *f)
00793 {
00794 char *cmd = NULL;
00795 size_t size = 0;
00796
00797 if (f->owner) {
00798 if (f->fmt->format < AST_FORMAT_MAX_AUDIO) {
00799 f->owner->stream = NULL;
00800 AST_SCHED_DEL(f->owner->sched, f->owner->streamid);
00801 #ifdef HAVE_ZAPTEL
00802 ast_settimeout(f->owner, 0, NULL, NULL);
00803 #endif
00804 } else {
00805 f->owner->vstream = NULL;
00806 AST_SCHED_DEL(f->owner->sched, f->owner->vstreamid);
00807 }
00808 }
00809
00810 if (f->trans)
00811 ast_translator_free_path(f->trans);
00812
00813 if (f->realfilename && f->filename) {
00814 size = strlen(f->filename) + strlen(f->realfilename) + 15;
00815 cmd = alloca(size);
00816 memset(cmd,0,size);
00817 snprintf(cmd,size,"/bin/mv -f %s %s",f->filename,f->realfilename);
00818 ast_safe_system(cmd);
00819 }
00820
00821 if (f->filename)
00822 free(f->filename);
00823 if (f->realfilename)
00824 free(f->realfilename);
00825 if (f->fmt->close)
00826 f->fmt->close(f);
00827 fclose(f->f);
00828 if (f->vfs)
00829 ast_closestream(f->vfs);
00830 if (f->orig_chan_name)
00831 free((void *) f->orig_chan_name);
00832 ast_module_unref(f->fmt->module);
00833 free(f);
00834 return 0;
00835 }
00836
00837
00838
00839
00840
00841 int ast_fileexists(const char *filename, const char *fmt, const char *preflang)
00842 {
00843 char *buf;
00844 int buflen;
00845
00846 if (preflang == NULL)
00847 preflang = "";
00848 buflen = strlen(preflang) + strlen(filename) + 4;
00849 buf = alloca(buflen);
00850 if (buf == NULL)
00851 return 0;
00852 return fileexists_core(filename, fmt, preflang, buf, buflen);
00853 }
00854
00855 int ast_filedelete(const char *filename, const char *fmt)
00856 {
00857 return ast_filehelper(filename, NULL, fmt, ACTION_DELETE);
00858 }
00859
00860 int ast_filerename(const char *filename, const char *filename2, const char *fmt)
00861 {
00862 return ast_filehelper(filename, filename2, fmt, ACTION_RENAME);
00863 }
00864
00865 int ast_filecopy(const char *filename, const char *filename2, const char *fmt)
00866 {
00867 return ast_filehelper(filename, filename2, fmt, ACTION_COPY);
00868 }
00869
00870 int ast_streamfile(struct ast_channel *chan, const char *filename, const char *preflang)
00871 {
00872 struct ast_filestream *fs;
00873 struct ast_filestream *vfs=NULL;
00874 char fmt[256];
00875
00876 fs = ast_openstream(chan, filename, preflang);
00877 if (fs)
00878 vfs = ast_openvstream(chan, filename, preflang);
00879 if (vfs)
00880 ast_log(LOG_DEBUG, "Ooh, found a video stream, too, format %s\n", ast_getformatname(vfs->fmt->format));
00881 if (fs){
00882 int res;
00883 if (ast_test_flag(chan, AST_FLAG_MASQ_NOSTREAM))
00884 fs->orig_chan_name = ast_strdup(chan->name);
00885 if (ast_applystream(chan, fs))
00886 return -1;
00887 if (vfs && ast_applystream(chan, vfs))
00888 return -1;
00889 res = ast_playstream(fs);
00890 if (!res && vfs)
00891 res = ast_playstream(vfs);
00892 if (option_verbose > 2)
00893 ast_verbose(VERBOSE_PREFIX_3 "<%s> Playing '%s' (language '%s')\n", chan->name, filename, preflang ? preflang : "default");
00894
00895 return res;
00896 }
00897 ast_log(LOG_WARNING, "Unable to open %s (format %s): %s\n", filename, ast_getformatname_multiple(fmt, sizeof(fmt), chan->nativeformats), strerror(errno));
00898 return -1;
00899 }
00900
00901 struct ast_filestream *ast_readfile(const char *filename, const char *type, const char *comment, int flags, int check, mode_t mode)
00902 {
00903 FILE *bfile;
00904 struct ast_format *f;
00905 struct ast_filestream *fs = NULL;
00906 char *fn;
00907
00908 AST_RWLIST_RDLOCK(&formats);
00909
00910 AST_RWLIST_TRAVERSE(&formats, f, list) {
00911 fs = NULL;
00912 if (!exts_compare(f->exts, type))
00913 continue;
00914
00915 fn = build_filename(filename, type);
00916 errno = 0;
00917 bfile = fopen(fn, "r");
00918 if (!bfile || (fs = get_filestream(f, bfile)) == NULL ||
00919 open_wrapper(fs) ) {
00920 ast_log(LOG_WARNING, "Unable to open %s\n", fn);
00921 if (fs)
00922 ast_free(fs);
00923 if (bfile)
00924 fclose(bfile);
00925 free(fn);
00926 continue;
00927 }
00928
00929 fs->trans = NULL;
00930 fs->fmt = f;
00931 fs->flags = flags;
00932 fs->mode = mode;
00933 fs->filename = strdup(filename);
00934 fs->vfs = NULL;
00935 break;
00936 }
00937
00938 AST_RWLIST_UNLOCK(&formats);
00939 if (!fs)
00940 ast_log(LOG_WARNING, "No such format '%s'\n", type);
00941
00942 return fs;
00943 }
00944
00945 struct ast_filestream *ast_writefile(const char *filename, const char *type, const char *comment, int flags, int check, mode_t mode)
00946 {
00947 int fd, myflags = 0;
00948
00949 FILE *bfile = NULL;
00950 struct ast_format *f;
00951 struct ast_filestream *fs = NULL;
00952 char *buf = NULL;
00953 size_t size = 0;
00954 int format_found = 0;
00955
00956 AST_RWLIST_RDLOCK(&formats);
00957
00958
00959
00960 if (flags & O_APPEND) {
00961 flags &= ~O_APPEND;
00962 } else {
00963 myflags = O_TRUNC;
00964 }
00965
00966 myflags |= O_WRONLY | O_CREAT;
00967
00968
00969
00970
00971 AST_RWLIST_TRAVERSE(&formats, f, list) {
00972 char *fn, *orig_fn = NULL;
00973 if (fs)
00974 break;
00975
00976 if (!exts_compare(f->exts, type))
00977 continue;
00978 else
00979 format_found = 1;
00980
00981 fn = build_filename(filename, type);
00982 fd = open(fn, flags | myflags, mode);
00983 if (fd > -1) {
00984
00985 bfile = fdopen(fd, ((flags | myflags) & O_RDWR) ? "w+" : "w");
00986 if (!bfile) {
00987 ast_log(LOG_WARNING, "Whoa, fdopen failed: %s!\n", strerror(errno));
00988 close(fd);
00989 fd = -1;
00990 }
00991 }
00992
00993 if (ast_opt_cache_record_files && (fd > -1)) {
00994 char *c;
00995
00996 fclose(bfile);
00997
00998
00999
01000
01001 orig_fn = ast_strdupa(fn);
01002 for (c = fn; *c; c++)
01003 if (*c == '/')
01004 *c = '_';
01005
01006 size = strlen(fn) + strlen(record_cache_dir) + 2;
01007 buf = alloca(size);
01008 strcpy(buf, record_cache_dir);
01009 strcat(buf, "/");
01010 strcat(buf, fn);
01011 free(fn);
01012 fn = buf;
01013 fd = open(fn, flags | myflags, mode);
01014 if (fd > -1) {
01015
01016 bfile = fdopen(fd, ((flags | myflags) & O_RDWR) ? "w+" : "w");
01017 if (!bfile) {
01018 ast_log(LOG_WARNING, "Whoa, fdopen failed: %s!\n", strerror(errno));
01019 close(fd);
01020 fd = -1;
01021 }
01022 }
01023 }
01024 if (fd > -1) {
01025 errno = 0;
01026 fs = get_filestream(f, bfile);
01027 if (!fs || rewrite_wrapper(fs, comment)) {
01028 ast_log(LOG_WARNING, "Unable to rewrite %s\n", fn);
01029 close(fd);
01030 if (orig_fn) {
01031 unlink(fn);
01032 unlink(orig_fn);
01033 }
01034 if (fs)
01035 ast_free(fs);
01036 fs = NULL;
01037 continue;
01038 }
01039 fs->trans = NULL;
01040 fs->fmt = f;
01041 fs->flags = flags;
01042 fs->mode = mode;
01043 if (orig_fn) {
01044 fs->realfilename = strdup(orig_fn);
01045 fs->filename = strdup(fn);
01046 } else {
01047 fs->realfilename = NULL;
01048 fs->filename = strdup(filename);
01049 }
01050 fs->vfs = NULL;
01051
01052 f->seek(fs, 0, SEEK_END);
01053 } else if (errno != EEXIST) {
01054 ast_log(LOG_WARNING, "Unable to open file %s: %s\n", fn, strerror(errno));
01055 if (orig_fn)
01056 unlink(orig_fn);
01057 }
01058
01059 if (!buf)
01060 free(fn);
01061 }
01062
01063 AST_RWLIST_UNLOCK(&formats);
01064
01065 if (!format_found)
01066 ast_log(LOG_WARNING, "No such format '%s'\n", type);
01067
01068 return fs;
01069 }
01070
01071
01072
01073
01074 static int waitstream_core(struct ast_channel *c, const char *breakon,
01075 const char *forward, const char *rewind, int skip_ms,
01076 int audiofd, int cmdfd, const char *context)
01077 {
01078 const char *orig_chan_name = NULL;
01079 int err = 0;
01080
01081 if (!breakon)
01082 breakon = "";
01083 if (!forward)
01084 forward = "";
01085 if (!rewind)
01086 rewind = "";
01087
01088
01089 ast_set_flag(c, AST_FLAG_END_DTMF_ONLY);
01090
01091 if (ast_test_flag(c, AST_FLAG_MASQ_NOSTREAM))
01092 orig_chan_name = ast_strdupa(c->name);
01093
01094 while (c->stream) {
01095 int res;
01096 int ms;
01097
01098 if (orig_chan_name && strcasecmp(orig_chan_name, c->name)) {
01099 ast_stopstream(c);
01100 err = 1;
01101 break;
01102 }
01103
01104 ms = ast_sched_wait(c->sched);
01105
01106 if (ms < 0 && !c->timingfunc) {
01107 ast_stopstream(c);
01108 break;
01109 }
01110 if (ms < 0)
01111 ms = 1000;
01112 if (cmdfd < 0) {
01113 res = ast_waitfor(c, ms);
01114 if (res < 0) {
01115 ast_log(LOG_WARNING, "Select failed (%s)\n", strerror(errno));
01116 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01117 return res;
01118 }
01119 } else {
01120 int outfd;
01121 struct ast_channel *rchan = ast_waitfor_nandfds(&c, 1, &cmdfd, (cmdfd > -1) ? 1 : 0, NULL, &outfd, &ms);
01122 if (!rchan && (outfd < 0) && (ms)) {
01123
01124 if (errno == EINTR)
01125 continue;
01126 ast_log(LOG_WARNING, "Wait failed (%s)\n", strerror(errno));
01127 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01128 return -1;
01129 } else if (outfd > -1) {
01130
01131 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01132 return 1;
01133 }
01134
01135 res = rchan ? 1 : 0;
01136 }
01137 if (res > 0) {
01138 struct ast_frame *fr = ast_read(c);
01139 if (!fr) {
01140 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01141 return -1;
01142 }
01143 switch(fr->frametype) {
01144 case AST_FRAME_DTMF_END:
01145 if (context) {
01146 const char exten[2] = { fr->subclass, '\0' };
01147 if (ast_exists_extension(c, context, exten, 1, c->cid.cid_num)) {
01148 res = fr->subclass;
01149 ast_frfree(fr);
01150 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01151 return res;
01152 }
01153 } else {
01154 res = fr->subclass;
01155 if (strchr(forward,res)) {
01156 ast_stream_fastforward(c->stream, skip_ms);
01157 } else if (strchr(rewind,res)) {
01158 ast_stream_rewind(c->stream, skip_ms);
01159 } else if (strchr(breakon, res)) {
01160 ast_frfree(fr);
01161 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01162 return res;
01163 }
01164 }
01165 break;
01166 case AST_FRAME_CONTROL:
01167 switch(fr->subclass) {
01168 case AST_CONTROL_HANGUP:
01169 case AST_CONTROL_BUSY:
01170 case AST_CONTROL_CONGESTION:
01171 ast_frfree(fr);
01172 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01173 return -1;
01174 case AST_CONTROL_RINGING:
01175 case AST_CONTROL_ANSWER:
01176 case AST_CONTROL_VIDUPDATE:
01177 case AST_CONTROL_SRCUPDATE:
01178 case AST_CONTROL_HOLD:
01179 case AST_CONTROL_UNHOLD:
01180
01181 break;
01182 default:
01183 ast_log(LOG_WARNING, "Unexpected control subclass '%d'\n", fr->subclass);
01184 }
01185 break;
01186 case AST_FRAME_VOICE:
01187
01188 if (audiofd > -1)
01189 write(audiofd, fr->data, fr->datalen);
01190 default:
01191
01192 break;
01193 }
01194 ast_frfree(fr);
01195 }
01196 ast_sched_runq(c->sched);
01197 }
01198
01199 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
01200
01201 return (err || c->_softhangup) ? -1 : 0;
01202 }
01203
01204 int ast_waitstream_fr(struct ast_channel *c, const char *breakon, const char *forward, const char *rewind, int ms)
01205 {
01206 return waitstream_core(c, breakon, forward, rewind, ms,
01207 -1 , -1 , NULL );
01208 }
01209
01210 int ast_waitstream(struct ast_channel *c, const char *breakon)
01211 {
01212 return waitstream_core(c, breakon, NULL, NULL, 0, -1, -1, NULL);
01213 }
01214
01215 int ast_waitstream_full(struct ast_channel *c, const char *breakon, int audiofd, int cmdfd)
01216 {
01217 return waitstream_core(c, breakon, NULL, NULL, 0,
01218 audiofd, cmdfd, NULL );
01219 }
01220
01221 int ast_waitstream_exten(struct ast_channel *c, const char *context)
01222 {
01223
01224
01225
01226 if (!context)
01227 context = c->context;
01228 return waitstream_core(c, NULL, NULL, NULL, 0,
01229 -1, -1, context);
01230 }
01231
01232
01233
01234
01235
01236
01237 int ast_stream_and_wait(struct ast_channel *chan, const char *file,
01238 const char *language, const char *digits)
01239 {
01240 int res = 0;
01241 if (!ast_strlen_zero(file)) {
01242 res = ast_streamfile(chan, file, language);
01243 if (!res)
01244 res = ast_waitstream(chan, digits);
01245 }
01246 return res;
01247 }
01248
01249 static int show_file_formats(int fd, int argc, char *argv[])
01250 {
01251 #define FORMAT "%-10s %-10s %-20s\n"
01252 #define FORMAT2 "%-10s %-10s %-20s\n"
01253 struct ast_format *f;
01254 int count_fmt = 0;
01255
01256 if (argc != 4)
01257 return RESULT_SHOWUSAGE;
01258 ast_cli(fd, FORMAT, "Format", "Name", "Extensions");
01259
01260 AST_RWLIST_RDLOCK(&formats);
01261 AST_RWLIST_TRAVERSE(&formats, f, list) {
01262 ast_cli(fd, FORMAT2, ast_getformatname(f->format), f->name, f->exts);
01263 count_fmt++;
01264 }
01265 AST_RWLIST_UNLOCK(&formats);
01266 ast_cli(fd, "%d file formats registered.\n", count_fmt);
01267 return RESULT_SUCCESS;
01268 #undef FORMAT
01269 #undef FORMAT2
01270 }
01271
01272 static int show_file_formats_deprecated(int fd, int argc, char *argv[])
01273 {
01274 #define FORMAT "%-10s %-10s %-20s\n"
01275 #define FORMAT2 "%-10s %-10s %-20s\n"
01276 struct ast_format *f;
01277 int count_fmt = 0;
01278
01279 if (argc != 3)
01280 return RESULT_SHOWUSAGE;
01281 ast_cli(fd, FORMAT, "Format", "Name", "Extensions");
01282
01283 if (AST_LIST_LOCK(&formats)) {
01284 ast_log(LOG_WARNING, "Unable to lock format list\n");
01285 return -1;
01286 }
01287
01288 AST_LIST_TRAVERSE(&formats, f, list) {
01289 ast_cli(fd, FORMAT2, ast_getformatname(f->format), f->name, f->exts);
01290 count_fmt++;
01291 }
01292 AST_LIST_UNLOCK(&formats);
01293 ast_cli(fd, "%d file formats registered.\n", count_fmt);
01294 return RESULT_SUCCESS;
01295 #undef FORMAT
01296 #undef FORMAT2
01297 }
01298
01299 char show_file_formats_usage[] =
01300 "Usage: core show file formats\n"
01301 " Displays currently registered file formats (if any)\n";
01302
01303 struct ast_cli_entry cli_show_file_formats_deprecated = {
01304 { "show", "file", "formats" },
01305 show_file_formats_deprecated, NULL,
01306 NULL };
01307
01308 struct ast_cli_entry cli_file[] = {
01309 { { "core", "show", "file", "formats" },
01310 show_file_formats, "Displays file formats",
01311 show_file_formats_usage, NULL, &cli_show_file_formats_deprecated },
01312 };
01313
01314 int ast_file_init(void)
01315 {
01316 ast_cli_register_multiple(cli_file, sizeof(cli_file) / sizeof(struct ast_cli_entry));
01317 return 0;
01318 }