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00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 224403 $")
00029
00030 #ifdef HAVE_SYS_STAT_H
00031 #include <sys/stat.h>
00032 #endif
00033 #include <regex.h>
00034 #include <sys/file.h>
00035 #include <signal.h>
00036 #include <sys/time.h>
00037 #include <sys/resource.h>
00038 #include <stdlib.h>
00039 #ifdef HAVE_CAP
00040 #include <sys/capability.h>
00041 #endif
00042
00043 #include "asterisk/paths.h"
00044 #include "asterisk/channel.h"
00045 #include "asterisk/pbx.h"
00046 #include "asterisk/file.h"
00047 #include "asterisk/app.h"
00048 #include "asterisk/dsp.h"
00049 #include "asterisk/utils.h"
00050 #include "asterisk/lock.h"
00051 #include "asterisk/indications.h"
00052 #include "asterisk/linkedlists.h"
00053 #include "asterisk/threadstorage.h"
00054
00055 AST_THREADSTORAGE_PUBLIC(ast_str_thread_global_buf);
00056
00057
00058 #define MAX_OTHER_FORMATS 10
00059
00060 static AST_RWLIST_HEAD_STATIC(groups, ast_group_info);
00061
00062
00063
00064
00065
00066
00067
00068
00069
00070
00071
00072
00073
00074
00075
00076 int ast_app_dtget(struct ast_channel *chan, const char *context, char *collect, size_t size, int maxlen, int timeout)
00077 {
00078 struct ast_tone_zone_sound *ts;
00079 int res = 0, x = 0;
00080
00081 if (maxlen > size) {
00082 maxlen = size;
00083 }
00084
00085 if (!timeout && chan->pbx) {
00086 timeout = chan->pbx->dtimeoutms / 1000.0;
00087 } else if (!timeout) {
00088 timeout = 5;
00089 }
00090
00091 if ((ts = ast_get_indication_tone(chan->zone, "dial"))) {
00092 res = ast_playtones_start(chan, 0, ts->data, 0);
00093 ts = ast_tone_zone_sound_unref(ts);
00094 } else {
00095 ast_log(LOG_NOTICE, "Huh....? no dial for indications?\n");
00096 }
00097
00098 for (x = strlen(collect); x < maxlen; ) {
00099 res = ast_waitfordigit(chan, timeout);
00100 if (!ast_ignore_pattern(context, collect)) {
00101 ast_playtones_stop(chan);
00102 }
00103 if (res < 1) {
00104 break;
00105 }
00106 if (res == '#') {
00107 break;
00108 }
00109 collect[x++] = res;
00110 if (!ast_matchmore_extension(chan, context, collect, 1, chan->cid.cid_num)) {
00111 break;
00112 }
00113 }
00114
00115 if (res >= 0) {
00116 res = ast_exists_extension(chan, context, collect, 1, chan->cid.cid_num) ? 1 : 0;
00117 }
00118
00119 return res;
00120 }
00121
00122
00123
00124
00125
00126
00127
00128
00129
00130 enum ast_getdata_result ast_app_getdata(struct ast_channel *c, const char *prompt, char *s, int maxlen, int timeout)
00131 {
00132 int res = 0, to, fto;
00133 char *front, *filename;
00134
00135
00136
00137 if (maxlen)
00138 s[0] = '\0';
00139
00140 if (!prompt)
00141 prompt = "";
00142
00143 filename = ast_strdupa(prompt);
00144 while ((front = strsep(&filename, "&"))) {
00145 if (!ast_strlen_zero(front)) {
00146 res = ast_streamfile(c, front, c->language);
00147 if (res)
00148 continue;
00149 }
00150 if (ast_strlen_zero(filename)) {
00151
00152 fto = c->pbx ? c->pbx->rtimeoutms : 6000;
00153 to = c->pbx ? c->pbx->dtimeoutms : 2000;
00154
00155 if (timeout > 0) {
00156 fto = to = timeout;
00157 }
00158 if (timeout < 0) {
00159 fto = to = 1000000000;
00160 }
00161 } else {
00162
00163
00164
00165 fto = 50;
00166 to = c->pbx ? c->pbx->dtimeoutms : 2000;
00167 }
00168 res = ast_readstring(c, s, maxlen, to, fto, "#");
00169 if (res == AST_GETDATA_EMPTY_END_TERMINATED) {
00170 return res;
00171 }
00172 if (!ast_strlen_zero(s)) {
00173 return res;
00174 }
00175 }
00176
00177 return res;
00178 }
00179
00180
00181 static enum AST_LOCK_TYPE ast_lock_type = AST_LOCK_TYPE_LOCKFILE;
00182
00183 int ast_app_getdata_full(struct ast_channel *c, const char *prompt, char *s, int maxlen, int timeout, int audiofd, int ctrlfd)
00184 {
00185 int res, to = 2000, fto = 6000;
00186
00187 if (!ast_strlen_zero(prompt)) {
00188 res = ast_streamfile(c, prompt, c->language);
00189 if (res < 0) {
00190 return res;
00191 }
00192 }
00193
00194 if (timeout > 0) {
00195 fto = to = timeout;
00196 }
00197 if (timeout < 0) {
00198 fto = to = 1000000000;
00199 }
00200
00201 res = ast_readstring_full(c, s, maxlen, to, fto, "#", audiofd, ctrlfd);
00202
00203 return res;
00204 }
00205
00206 int ast_app_run_macro(struct ast_channel *autoservice_chan, struct ast_channel *macro_chan, const char * const macro_name, const char * const macro_args)
00207 {
00208 struct ast_app *macro_app;
00209 int res;
00210 char buf[1024];
00211
00212 macro_app = pbx_findapp("Macro");
00213 if (!macro_app) {
00214 ast_log(LOG_WARNING, "Cannot run macro '%s' because the 'Macro' application in not available\n", macro_name);
00215 return -1;
00216 }
00217 snprintf(buf, sizeof(buf), "%s%s%s", macro_name, ast_strlen_zero(macro_args) ? "" : ",", S_OR(macro_args, ""));
00218 if (autoservice_chan) {
00219 ast_autoservice_start(autoservice_chan);
00220 }
00221 res = pbx_exec(macro_chan, macro_app, buf);
00222 if (autoservice_chan) {
00223 ast_autoservice_stop(autoservice_chan);
00224 }
00225 return res;
00226 }
00227
00228 static int (*ast_has_voicemail_func)(const char *mailbox, const char *folder) = NULL;
00229 static int (*ast_inboxcount_func)(const char *mailbox, int *newmsgs, int *oldmsgs) = NULL;
00230 static int (*ast_inboxcount2_func)(const char *mailbox, int *urgentmsgs, int *newmsgs, int *oldmsgs) = NULL;
00231 static int (*ast_sayname_func)(struct ast_channel *chan, const char *mailbox, const char *context) = NULL;
00232 static int (*ast_messagecount_func)(const char *context, const char *mailbox, const char *folder) = NULL;
00233
00234 void ast_install_vm_functions(int (*has_voicemail_func)(const char *mailbox, const char *folder),
00235 int (*inboxcount_func)(const char *mailbox, int *newmsgs, int *oldmsgs),
00236 int (*inboxcount2_func)(const char *mailbox, int *urgentmsgs, int *newmsgs, int *oldmsgs),
00237 int (*messagecount_func)(const char *context, const char *mailbox, const char *folder),
00238 int (*sayname_func)(struct ast_channel *chan, const char *mailbox, const char *context))
00239 {
00240 ast_has_voicemail_func = has_voicemail_func;
00241 ast_inboxcount_func = inboxcount_func;
00242 ast_inboxcount2_func = inboxcount2_func;
00243 ast_messagecount_func = messagecount_func;
00244 ast_sayname_func = sayname_func;
00245 }
00246
00247 void ast_uninstall_vm_functions(void)
00248 {
00249 ast_has_voicemail_func = NULL;
00250 ast_inboxcount_func = NULL;
00251 ast_inboxcount2_func = NULL;
00252 ast_messagecount_func = NULL;
00253 ast_sayname_func = NULL;
00254 }
00255
00256 int ast_app_has_voicemail(const char *mailbox, const char *folder)
00257 {
00258 static int warned = 0;
00259 if (ast_has_voicemail_func) {
00260 return ast_has_voicemail_func(mailbox, folder);
00261 }
00262
00263 if (warned++ % 10 == 0) {
00264 ast_verb(3, "Message check requested for mailbox %s/folder %s but voicemail not loaded.\n", mailbox, folder ? folder : "INBOX");
00265 }
00266 return 0;
00267 }
00268
00269
00270 int ast_app_inboxcount(const char *mailbox, int *newmsgs, int *oldmsgs)
00271 {
00272 static int warned = 0;
00273 if (newmsgs) {
00274 *newmsgs = 0;
00275 }
00276 if (oldmsgs) {
00277 *oldmsgs = 0;
00278 }
00279 if (ast_inboxcount_func) {
00280 return ast_inboxcount_func(mailbox, newmsgs, oldmsgs);
00281 }
00282
00283 if (warned++ % 10 == 0) {
00284 ast_verb(3, "Message count requested for mailbox %s but voicemail not loaded.\n", mailbox);
00285 }
00286
00287 return 0;
00288 }
00289
00290 int ast_app_inboxcount2(const char *mailbox, int *urgentmsgs, int *newmsgs, int *oldmsgs)
00291 {
00292 static int warned = 0;
00293 if (newmsgs) {
00294 *newmsgs = 0;
00295 }
00296 if (oldmsgs) {
00297 *oldmsgs = 0;
00298 }
00299 if (urgentmsgs) {
00300 *urgentmsgs = 0;
00301 }
00302 if (ast_inboxcount_func) {
00303 return ast_inboxcount2_func(mailbox, urgentmsgs, newmsgs, oldmsgs);
00304 }
00305
00306 if (warned++ % 10 == 0) {
00307 ast_verb(3, "Message count requested for mailbox %s but voicemail not loaded.\n", mailbox);
00308 }
00309
00310 return 0;
00311 }
00312
00313 int ast_app_sayname(struct ast_channel *chan, const char *mailbox, const char *context)
00314 {
00315 if (ast_sayname_func) {
00316 return ast_sayname_func(chan, mailbox, context);
00317 }
00318 return -1;
00319 }
00320
00321 int ast_app_messagecount(const char *context, const char *mailbox, const char *folder)
00322 {
00323 static int warned = 0;
00324 if (ast_messagecount_func) {
00325 return ast_messagecount_func(context, mailbox, folder);
00326 }
00327
00328 if (!warned) {
00329 warned++;
00330 ast_verb(3, "Message count requested for mailbox %s@%s/%s but voicemail not loaded.\n", mailbox, context, folder);
00331 }
00332
00333 return 0;
00334 }
00335
00336 int ast_dtmf_stream(struct ast_channel *chan, struct ast_channel *peer, const char *digits, int between, unsigned int duration)
00337 {
00338 const char *ptr;
00339 int res = 0;
00340 struct ast_silence_generator *silgen = NULL;
00341
00342 if (!between) {
00343 between = 100;
00344 }
00345
00346 if (peer) {
00347 res = ast_autoservice_start(peer);
00348 }
00349
00350 if (!res) {
00351 res = ast_waitfor(chan, 100);
00352 }
00353
00354
00355 if (res < 0) {
00356 if (peer) {
00357 ast_autoservice_stop(peer);
00358 }
00359 return res;
00360 }
00361
00362 if (ast_opt_transmit_silence) {
00363 silgen = ast_channel_start_silence_generator(chan);
00364 }
00365
00366 for (ptr = digits; *ptr; ptr++) {
00367 if (*ptr == 'w') {
00368
00369 if ((res = ast_safe_sleep(chan, 500))) {
00370 break;
00371 }
00372 } else if (strchr("0123456789*#abcdfABCDF", *ptr)) {
00373
00374 if (*ptr == 'f' || *ptr == 'F') {
00375
00376 ast_indicate(chan, AST_CONTROL_FLASH);
00377 } else {
00378 ast_senddigit(chan, *ptr, duration);
00379 }
00380
00381 if ((res = ast_safe_sleep(chan, between))) {
00382 break;
00383 }
00384 } else {
00385 ast_log(LOG_WARNING, "Illegal DTMF character '%c' in string. (0-9*#aAbBcCdD allowed)\n", *ptr);
00386 }
00387 }
00388
00389 if (peer) {
00390
00391
00392 if (ast_autoservice_stop(peer) && !res) {
00393 res = -1;
00394 }
00395 }
00396
00397 if (silgen) {
00398 ast_channel_stop_silence_generator(chan, silgen);
00399 }
00400
00401 return res;
00402 }
00403
00404 struct linear_state {
00405 int fd;
00406 int autoclose;
00407 int allowoverride;
00408 int origwfmt;
00409 };
00410
00411 static void linear_release(struct ast_channel *chan, void *params)
00412 {
00413 struct linear_state *ls = params;
00414
00415 if (ls->origwfmt && ast_set_write_format(chan, ls->origwfmt)) {
00416 ast_log(LOG_WARNING, "Unable to restore channel '%s' to format '%d'\n", chan->name, ls->origwfmt);
00417 }
00418
00419 if (ls->autoclose) {
00420 close(ls->fd);
00421 }
00422
00423 ast_free(params);
00424 }
00425
00426 static int linear_generator(struct ast_channel *chan, void *data, int len, int samples)
00427 {
00428 short buf[2048 + AST_FRIENDLY_OFFSET / 2];
00429 struct linear_state *ls = data;
00430 struct ast_frame f = {
00431 .frametype = AST_FRAME_VOICE,
00432 .subclass = AST_FORMAT_SLINEAR,
00433 .data.ptr = buf + AST_FRIENDLY_OFFSET / 2,
00434 .offset = AST_FRIENDLY_OFFSET,
00435 };
00436 int res;
00437
00438 len = samples * 2;
00439 if (len > sizeof(buf) - AST_FRIENDLY_OFFSET) {
00440 ast_log(LOG_WARNING, "Can't generate %d bytes of data!\n" , len);
00441 len = sizeof(buf) - AST_FRIENDLY_OFFSET;
00442 }
00443 res = read(ls->fd, buf + AST_FRIENDLY_OFFSET/2, len);
00444 if (res > 0) {
00445 f.datalen = res;
00446 f.samples = res / 2;
00447 ast_write(chan, &f);
00448 if (res == len) {
00449 return 0;
00450 }
00451 }
00452 return -1;
00453 }
00454
00455 static void *linear_alloc(struct ast_channel *chan, void *params)
00456 {
00457 struct linear_state *ls = params;
00458
00459 if (!params) {
00460 return NULL;
00461 }
00462
00463
00464 if (ls->allowoverride) {
00465 ast_set_flag(chan, AST_FLAG_WRITE_INT);
00466 } else {
00467 ast_clear_flag(chan, AST_FLAG_WRITE_INT);
00468 }
00469
00470 ls->origwfmt = chan->writeformat;
00471
00472 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR)) {
00473 ast_log(LOG_WARNING, "Unable to set '%s' to linear format (write)\n", chan->name);
00474 ast_free(ls);
00475 ls = params = NULL;
00476 }
00477
00478 return params;
00479 }
00480
00481 static struct ast_generator linearstream =
00482 {
00483 alloc: linear_alloc,
00484 release: linear_release,
00485 generate: linear_generator,
00486 };
00487
00488 int ast_linear_stream(struct ast_channel *chan, const char *filename, int fd, int allowoverride)
00489 {
00490 struct linear_state *lin;
00491 char tmpf[256];
00492 int res = -1;
00493 int autoclose = 0;
00494 if (fd < 0) {
00495 if (ast_strlen_zero(filename)) {
00496 return -1;
00497 }
00498 autoclose = 1;
00499 if (filename[0] == '/') {
00500 ast_copy_string(tmpf, filename, sizeof(tmpf));
00501 } else {
00502 snprintf(tmpf, sizeof(tmpf), "%s/%s/%s", ast_config_AST_DATA_DIR, "sounds", filename);
00503 }
00504 if ((fd = open(tmpf, O_RDONLY)) < 0) {
00505 ast_log(LOG_WARNING, "Unable to open file '%s': %s\n", tmpf, strerror(errno));
00506 return -1;
00507 }
00508 }
00509 if ((lin = ast_calloc(1, sizeof(*lin)))) {
00510 lin->fd = fd;
00511 lin->allowoverride = allowoverride;
00512 lin->autoclose = autoclose;
00513 res = ast_activate_generator(chan, &linearstream, lin);
00514 }
00515 return res;
00516 }
00517
00518 int ast_control_streamfile(struct ast_channel *chan, const char *file,
00519 const char *fwd, const char *rev,
00520 const char *stop, const char *suspend,
00521 const char *restart, int skipms, long *offsetms)
00522 {
00523 char *breaks = NULL;
00524 char *end = NULL;
00525 int blen = 2;
00526 int res;
00527 long pause_restart_point = 0;
00528 long offset = 0;
00529
00530 if (offsetms) {
00531 offset = *offsetms * 8;
00532 }
00533
00534 if (stop) {
00535 blen += strlen(stop);
00536 }
00537 if (suspend) {
00538 blen += strlen(suspend);
00539 }
00540 if (restart) {
00541 blen += strlen(restart);
00542 }
00543
00544 if (blen > 2) {
00545 breaks = alloca(blen + 1);
00546 breaks[0] = '\0';
00547 if (stop) {
00548 strcat(breaks, stop);
00549 }
00550 if (suspend) {
00551 strcat(breaks, suspend);
00552 }
00553 if (restart) {
00554 strcat(breaks, restart);
00555 }
00556 }
00557 if (chan->_state != AST_STATE_UP) {
00558 res = ast_answer(chan);
00559 }
00560
00561 if (file) {
00562 if ((end = strchr(file, ':'))) {
00563 if (!strcasecmp(end, ":end")) {
00564 *end = '\0';
00565 end++;
00566 }
00567 }
00568 }
00569
00570 for (;;) {
00571 ast_stopstream(chan);
00572 res = ast_streamfile(chan, file, chan->language);
00573 if (!res) {
00574 if (pause_restart_point) {
00575 ast_seekstream(chan->stream, pause_restart_point, SEEK_SET);
00576 pause_restart_point = 0;
00577 }
00578 else if (end || offset < 0) {
00579 if (offset == -8) {
00580 offset = 0;
00581 }
00582 ast_verb(3, "ControlPlayback seek to offset %ld from end\n", offset);
00583
00584 ast_seekstream(chan->stream, offset, SEEK_END);
00585 end = NULL;
00586 offset = 0;
00587 } else if (offset) {
00588 ast_verb(3, "ControlPlayback seek to offset %ld\n", offset);
00589 ast_seekstream(chan->stream, offset, SEEK_SET);
00590 offset = 0;
00591 }
00592 res = ast_waitstream_fr(chan, breaks, fwd, rev, skipms);
00593 }
00594
00595 if (res < 1) {
00596 break;
00597 }
00598
00599
00600 if (restart && strchr(restart, res)) {
00601 ast_debug(1, "we'll restart the stream here at next loop\n");
00602 pause_restart_point = 0;
00603 continue;
00604 }
00605
00606 if (suspend && strchr(suspend, res)) {
00607 pause_restart_point = ast_tellstream(chan->stream);
00608 for (;;) {
00609 ast_stopstream(chan);
00610 if (!(res = ast_waitfordigit(chan, 1000))) {
00611 continue;
00612 } else if (res == -1 || strchr(suspend, res) || (stop && strchr(stop, res))) {
00613 break;
00614 }
00615 }
00616 if (res == *suspend) {
00617 res = 0;
00618 continue;
00619 }
00620 }
00621
00622 if (res == -1) {
00623 break;
00624 }
00625
00626
00627 if (stop && strchr(stop, res)) {
00628 break;
00629 }
00630 }
00631
00632 if (pause_restart_point) {
00633 offset = pause_restart_point;
00634 } else {
00635 if (chan->stream) {
00636 offset = ast_tellstream(chan->stream);
00637 } else {
00638 offset = -8;
00639 }
00640 }
00641
00642 if (offsetms) {
00643 *offsetms = offset / 8;
00644 }
00645
00646
00647 if (res > 0 || chan->stream) {
00648 res = (char)res;
00649 }
00650
00651 ast_stopstream(chan);
00652
00653 return res;
00654 }
00655
00656 int ast_play_and_wait(struct ast_channel *chan, const char *fn)
00657 {
00658 int d = 0;
00659
00660 if ((d = ast_streamfile(chan, fn, chan->language))) {
00661 return d;
00662 }
00663
00664 d = ast_waitstream(chan, AST_DIGIT_ANY);
00665
00666 ast_stopstream(chan);
00667
00668 return d;
00669 }
00670
00671 static int global_silence_threshold = 128;
00672 static int global_maxsilence = 0;
00673
00674
00675
00676
00677
00678
00679
00680
00681
00682
00683
00684
00685
00686
00687
00688
00689
00690 static int __ast_play_and_record(struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, int beep, int silencethreshold, int maxsilence, const char *path, int prepend, const char *acceptdtmf, const char *canceldtmf)
00691 {
00692 int d = 0;
00693 char *fmts;
00694 char comment[256];
00695 int x, fmtcnt = 1, res = -1, outmsg = 0;
00696 struct ast_filestream *others[MAX_OTHER_FORMATS];
00697 char *sfmt[MAX_OTHER_FORMATS];
00698 char *stringp = NULL;
00699 time_t start, end;
00700 struct ast_dsp *sildet = NULL;
00701 int totalsilence = 0;
00702 int dspsilence = 0;
00703 int olddspsilence = 0;
00704 int rfmt = 0;
00705 struct ast_silence_generator *silgen = NULL;
00706 char prependfile[80];
00707
00708 if (silencethreshold < 0) {
00709 silencethreshold = global_silence_threshold;
00710 }
00711
00712 if (maxsilence < 0) {
00713 maxsilence = global_maxsilence;
00714 }
00715
00716
00717 if (!duration) {
00718 ast_log(LOG_WARNING, "Error play_and_record called without duration pointer\n");
00719 return -1;
00720 }
00721
00722 ast_debug(1, "play_and_record: %s, %s, '%s'\n", playfile ? playfile : "<None>", recordfile, fmt);
00723 snprintf(comment, sizeof(comment), "Playing %s, Recording to: %s on %s\n", playfile ? playfile : "<None>", recordfile, chan->name);
00724
00725 if (playfile || beep) {
00726 if (!beep) {
00727 d = ast_play_and_wait(chan, playfile);
00728 }
00729 if (d > -1) {
00730 d = ast_stream_and_wait(chan, "beep", "");
00731 }
00732 if (d < 0) {
00733 return -1;
00734 }
00735 }
00736
00737 if (prepend) {
00738 ast_copy_string(prependfile, recordfile, sizeof(prependfile));
00739 strncat(prependfile, "-prepend", sizeof(prependfile) - strlen(prependfile) - 1);
00740 }
00741
00742 fmts = ast_strdupa(fmt);
00743
00744 stringp = fmts;
00745 strsep(&stringp, "|");
00746 ast_debug(1, "Recording Formats: sfmts=%s\n", fmts);
00747 sfmt[0] = ast_strdupa(fmts);
00748
00749 while ((fmt = strsep(&stringp, "|"))) {
00750 if (fmtcnt > MAX_OTHER_FORMATS - 1) {
00751 ast_log(LOG_WARNING, "Please increase MAX_OTHER_FORMATS in app.c\n");
00752 break;
00753 }
00754 sfmt[fmtcnt++] = ast_strdupa(fmt);
00755 }
00756
00757 end = start = time(NULL);
00758 for (x = 0; x < fmtcnt; x++) {
00759 others[x] = ast_writefile(prepend ? prependfile : recordfile, sfmt[x], comment, O_TRUNC, 0, AST_FILE_MODE);
00760 ast_verb(3, "x=%d, open writing: %s format: %s, %p\n", x, prepend ? prependfile : recordfile, sfmt[x], others[x]);
00761
00762 if (!others[x]) {
00763 break;
00764 }
00765 }
00766
00767 if (path) {
00768 ast_unlock_path(path);
00769 }
00770
00771 if (maxsilence > 0) {
00772 sildet = ast_dsp_new();
00773 if (!sildet) {
00774 ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
00775 return -1;
00776 }
00777 ast_dsp_set_threshold(sildet, silencethreshold);
00778 rfmt = chan->readformat;
00779 res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
00780 if (res < 0) {
00781 ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
00782 ast_dsp_free(sildet);
00783 return -1;
00784 }
00785 }
00786
00787 if (!prepend) {
00788
00789 ast_indicate(chan, AST_CONTROL_VIDUPDATE);
00790
00791 if (ast_opt_transmit_silence) {
00792 silgen = ast_channel_start_silence_generator(chan);
00793 }
00794 }
00795
00796 if (x == fmtcnt) {
00797
00798
00799 struct ast_frame *f;
00800 for (;;) {
00801 if (!(res = ast_waitfor(chan, 2000))) {
00802 ast_debug(1, "One waitfor failed, trying another\n");
00803
00804 if (!(res = ast_waitfor(chan, 2000))) {
00805 ast_log(LOG_WARNING, "No audio available on %s??\n", chan->name);
00806 res = -1;
00807 }
00808 }
00809
00810 if (res < 0) {
00811 f = NULL;
00812 break;
00813 }
00814 if (!(f = ast_read(chan))) {
00815 break;
00816 }
00817 if (f->frametype == AST_FRAME_VOICE) {
00818
00819 for (x = 0; x < fmtcnt; x++) {
00820 if (prepend && !others[x]) {
00821 break;
00822 }
00823 res = ast_writestream(others[x], f);
00824 }
00825
00826
00827 if (maxsilence > 0) {
00828 dspsilence = 0;
00829 ast_dsp_silence(sildet, f, &dspsilence);
00830 if (olddspsilence > dspsilence) {
00831 totalsilence += olddspsilence;
00832 }
00833 olddspsilence = dspsilence;
00834
00835 if (dspsilence > maxsilence) {
00836
00837 ast_verb(3, "Recording automatically stopped after a silence of %d seconds\n", dspsilence/1000);
00838 res = 'S';
00839 outmsg = 2;
00840 break;
00841 }
00842 }
00843
00844 if (res) {
00845 ast_log(LOG_WARNING, "Error writing frame\n");
00846 break;
00847 }
00848 } else if (f->frametype == AST_FRAME_VIDEO) {
00849
00850 ast_writestream(others[0], f);
00851 } else if (f->frametype == AST_FRAME_DTMF) {
00852 if (prepend) {
00853
00854 ast_verb(3, "User ended message by pressing %c\n", f->subclass);
00855 res = 't';
00856 outmsg = 2;
00857 break;
00858 }
00859 if (strchr(acceptdtmf, f->subclass)) {
00860 ast_verb(3, "User ended message by pressing %c\n", f->subclass);
00861 res = f->subclass;
00862 outmsg = 2;
00863 break;
00864 }
00865 if (strchr(canceldtmf, f->subclass)) {
00866 ast_verb(3, "User cancelled message by pressing %c\n", f->subclass);
00867 res = f->subclass;
00868 outmsg = 0;
00869 break;
00870 }
00871 }
00872 if (maxtime) {
00873 end = time(NULL);
00874 if (maxtime < (end - start)) {
00875 ast_verb(3, "Took too long, cutting it short...\n");
00876 res = 't';
00877 outmsg = 2;
00878 break;
00879 }
00880 }
00881 ast_frfree(f);
00882 }
00883 if (!f) {
00884 ast_verb(3, "User hung up\n");
00885 res = -1;
00886 outmsg = 1;
00887 } else {
00888 ast_frfree(f);
00889 }
00890 } else {
00891 ast_log(LOG_WARNING, "Error creating writestream '%s', format '%s'\n", recordfile, sfmt[x]);
00892 }
00893
00894 if (!prepend) {
00895 if (silgen) {
00896 ast_channel_stop_silence_generator(chan, silgen);
00897 }
00898 }
00899
00900
00901
00902
00903
00904
00905
00906
00907
00908
00909 *duration = others[0] ? ast_tellstream(others[0]) / 8000 : 0;
00910
00911 if (!prepend) {
00912
00913 if (olddspsilence <= dspsilence) {
00914 totalsilence += dspsilence;
00915 }
00916
00917 if (totalsilence > 0)
00918 *duration -= (totalsilence - 200) / 1000;
00919 if (*duration < 0) {
00920 *duration = 0;
00921 }
00922 for (x = 0; x < fmtcnt; x++) {
00923 if (!others[x]) {
00924 break;
00925 }
00926
00927
00928
00929
00930
00931 if (res > 0 && dspsilence) {
00932
00933 ast_stream_rewind(others[x], dspsilence - 200);
00934 }
00935 ast_truncstream(others[x]);
00936 ast_closestream(others[x]);
00937 }
00938 }
00939
00940 if (prepend && outmsg) {
00941 struct ast_filestream *realfiles[MAX_OTHER_FORMATS];
00942 struct ast_frame *fr;
00943
00944 for (x = 0; x < fmtcnt; x++) {
00945 snprintf(comment, sizeof(comment), "Opening the real file %s.%s\n", recordfile, sfmt[x]);
00946 realfiles[x] = ast_readfile(recordfile, sfmt[x], comment, O_RDONLY, 0, 0);
00947 if (!others[x] || !realfiles[x]) {
00948 break;
00949 }
00950
00951 if (dspsilence) {
00952 ast_stream_rewind(others[x], dspsilence - 200);
00953 }
00954 ast_truncstream(others[x]);
00955
00956 while ((fr = ast_readframe(realfiles[x]))) {
00957 ast_writestream(others[x], fr);
00958 ast_frfree(fr);
00959 }
00960 ast_closestream(others[x]);
00961 ast_closestream(realfiles[x]);
00962 ast_filerename(prependfile, recordfile, sfmt[x]);
00963 ast_verb(4, "Recording Format: sfmts=%s, prependfile %s, recordfile %s\n", sfmt[x], prependfile, recordfile);
00964 ast_filedelete(prependfile, sfmt[x]);
00965 }
00966 }
00967 if (rfmt && ast_set_read_format(chan, rfmt)) {
00968 ast_log(LOG_WARNING, "Unable to restore format %s to channel '%s'\n", ast_getformatname(rfmt), chan->name);
00969 }
00970 if (outmsg == 2) {
00971 ast_stream_and_wait(chan, "auth-thankyou", "");
00972 }
00973 if (sildet) {
00974 ast_dsp_free(sildet);
00975 }
00976 return res;
00977 }
00978
00979 static const char default_acceptdtmf[] = "#";
00980 static const char default_canceldtmf[] = "";
00981
00982 int ast_play_and_record_full(struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, int silencethreshold, int maxsilence, const char *path, const char *acceptdtmf, const char *canceldtmf)
00983 {
00984 return __ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, 0, silencethreshold, maxsilence, path, 0, S_OR(acceptdtmf, default_acceptdtmf), S_OR(canceldtmf, default_canceldtmf));
00985 }
00986
00987 int ast_play_and_record(struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, int silencethreshold, int maxsilence, const char *path)
00988 {
00989 return __ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, 0, silencethreshold, maxsilence, path, 0, default_acceptdtmf, default_canceldtmf);
00990 }
00991
00992 int ast_play_and_prepend(struct ast_channel *chan, char *playfile, char *recordfile, int maxtime, char *fmt, int *duration, int beep, int silencethreshold, int maxsilence)
00993 {
00994 return __ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, beep, silencethreshold, maxsilence, NULL, 1, default_acceptdtmf, default_canceldtmf);
00995 }
00996
00997
00998
00999 int ast_app_group_split_group(const char *data, char *group, int group_max, char *category, int category_max)
01000 {
01001 int res = 0;
01002 char tmp[256];
01003 char *grp = NULL, *cat = NULL;
01004
01005 if (!ast_strlen_zero(data)) {
01006 ast_copy_string(tmp, data, sizeof(tmp));
01007 grp = tmp;
01008 if ((cat = strchr(tmp, '@'))) {
01009 *cat++ = '\0';
01010 }
01011 }
01012
01013 if (!ast_strlen_zero(grp)) {
01014 ast_copy_string(group, grp, group_max);
01015 } else {
01016 *group = '\0';
01017 }
01018
01019 if (!ast_strlen_zero(cat)) {
01020 ast_copy_string(category, cat, category_max);
01021 }
01022
01023 return res;
01024 }
01025
01026 int ast_app_group_set_channel(struct ast_channel *chan, const char *data)
01027 {
01028 int res = 0;
01029 char group[80] = "", category[80] = "";
01030 struct ast_group_info *gi = NULL;
01031 size_t len = 0;
01032
01033 if (ast_app_group_split_group(data, group, sizeof(group), category, sizeof(category))) {
01034 return -1;
01035 }
01036
01037
01038 len = sizeof(*gi) + strlen(group) + 1;
01039 if (!ast_strlen_zero(category)) {
01040 len += strlen(category) + 1;
01041 }
01042
01043 AST_RWLIST_WRLOCK(&groups);
01044 AST_RWLIST_TRAVERSE_SAFE_BEGIN(&groups, gi, group_list) {
01045 if ((gi->chan == chan) && ((ast_strlen_zero(category) && ast_strlen_zero(gi->category)) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))) {
01046 AST_RWLIST_REMOVE_CURRENT(group_list);
01047 free(gi);
01048 break;
01049 }
01050 }
01051 AST_RWLIST_TRAVERSE_SAFE_END;
01052
01053 if (ast_strlen_zero(group)) {
01054
01055 } else if ((gi = calloc(1, len))) {
01056 gi->chan = chan;
01057 gi->group = (char *) gi + sizeof(*gi);
01058 strcpy(gi->group, group);
01059 if (!ast_strlen_zero(category)) {
01060 gi->category = (char *) gi + sizeof(*gi) + strlen(group) + 1;
01061 strcpy(gi->category, category);
01062 }
01063 AST_RWLIST_INSERT_TAIL(&groups, gi, group_list);
01064 } else {
01065 res = -1;
01066 }
01067
01068 AST_RWLIST_UNLOCK(&groups);
01069
01070 return res;
01071 }
01072
01073 int ast_app_group_get_count(const char *group, const char *category)
01074 {
01075 struct ast_group_info *gi = NULL;
01076 int count = 0;
01077
01078 if (ast_strlen_zero(group)) {
01079 return 0;
01080 }
01081
01082 AST_RWLIST_RDLOCK(&groups);
01083 AST_RWLIST_TRAVERSE(&groups, gi, group_list) {
01084 if (!strcasecmp(gi->group, group) && (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))) {
01085 count++;
01086 }
01087 }
01088 AST_RWLIST_UNLOCK(&groups);
01089
01090 return count;
01091 }
01092
01093 int ast_app_group_match_get_count(const char *groupmatch, const char *category)
01094 {
01095 struct ast_group_info *gi = NULL;
01096 regex_t regexbuf;
01097 int count = 0;
01098
01099 if (ast_strlen_zero(groupmatch)) {
01100 return 0;
01101 }
01102
01103
01104 if (regcomp(®exbuf, groupmatch, REG_EXTENDED | REG_NOSUB)) {
01105 return 0;
01106 }
01107
01108 AST_RWLIST_RDLOCK(&groups);
01109 AST_RWLIST_TRAVERSE(&groups, gi, group_list) {
01110 if (!regexec(®exbuf, gi->group, 0, NULL, 0) && (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))) {
01111 count++;
01112 }
01113 }
01114 AST_RWLIST_UNLOCK(&groups);
01115
01116 regfree(®exbuf);
01117
01118 return count;
01119 }
01120
01121 int ast_app_group_update(struct ast_channel *old, struct ast_channel *new)
01122 {
01123 struct ast_group_info *gi = NULL;
01124
01125 AST_RWLIST_WRLOCK(&groups);
01126 AST_RWLIST_TRAVERSE_SAFE_BEGIN(&groups, gi, group_list) {
01127 if (gi->chan == old) {
01128 gi->chan = new;
01129 } else if (gi->chan == new) {
01130 AST_RWLIST_REMOVE_CURRENT(group_list);
01131 ast_free(gi);
01132 }
01133 }
01134 AST_RWLIST_TRAVERSE_SAFE_END;
01135 AST_RWLIST_UNLOCK(&groups);
01136
01137 return 0;
01138 }
01139
01140 int ast_app_group_discard(struct ast_channel *chan)
01141 {
01142 struct ast_group_info *gi = NULL;
01143
01144 AST_RWLIST_WRLOCK(&groups);
01145 AST_RWLIST_TRAVERSE_SAFE_BEGIN(&groups, gi, group_list) {
01146 if (gi->chan == chan) {
01147 AST_RWLIST_REMOVE_CURRENT(group_list);
01148 ast_free(gi);
01149 }
01150 }
01151 AST_RWLIST_TRAVERSE_SAFE_END;
01152 AST_RWLIST_UNLOCK(&groups);
01153
01154 return 0;
01155 }
01156
01157 int ast_app_group_list_wrlock(void)
01158 {
01159 return AST_RWLIST_WRLOCK(&groups);
01160 }
01161
01162 int ast_app_group_list_rdlock(void)
01163 {
01164 return AST_RWLIST_RDLOCK(&groups);
01165 }
01166
01167 struct ast_group_info *ast_app_group_list_head(void)
01168 {
01169 return AST_RWLIST_FIRST(&groups);
01170 }
01171
01172 int ast_app_group_list_unlock(void)
01173 {
01174 return AST_RWLIST_UNLOCK(&groups);
01175 }
01176
01177 #undef ast_app_separate_args
01178 unsigned int ast_app_separate_args(char *buf, char delim, char **array, int arraylen);
01179
01180 unsigned int __ast_app_separate_args(char *buf, char delim, int remove_chars, char **array, int arraylen)
01181 {
01182 int argc;
01183 char *scan, *wasdelim = NULL;
01184 int paren = 0, quote = 0;
01185
01186 if (!buf || !array || !arraylen) {
01187 return 0;
01188 }
01189
01190 memset(array, 0, arraylen * sizeof(*array));
01191
01192 scan = buf;
01193
01194 for (argc = 0; *scan && (argc < arraylen - 1); argc++) {
01195 array[argc] = scan;
01196 for (; *scan; scan++) {
01197 if (*scan == '(') {
01198 paren++;
01199 } else if (*scan == ')') {
01200 if (paren) {
01201 paren--;
01202 }
01203 } else if (*scan == '"' && delim != '"') {
01204 quote = quote ? 0 : 1;
01205 if (remove_chars) {
01206
01207 memmove(scan, scan + 1, strlen(scan));
01208 scan--;
01209 }
01210 } else if (*scan == '\\') {
01211 if (remove_chars) {
01212
01213 memmove(scan, scan + 1, strlen(scan));
01214 } else {
01215 scan++;
01216 }
01217 } else if ((*scan == delim) && !paren && !quote) {
01218 wasdelim = scan;
01219 *scan++ = '\0';
01220 break;
01221 }
01222 }
01223 }
01224
01225
01226
01227 if (*scan || (scan > buf && (scan - 1) == wasdelim)) {
01228 array[argc++] = scan;
01229 }
01230
01231 return argc;
01232 }
01233
01234
01235 unsigned int ast_app_separate_args(char *buf, char delim, char **array, int arraylen)
01236 {
01237 return __ast_app_separate_args(buf, delim, 1, array, arraylen);
01238 }
01239
01240 static enum AST_LOCK_RESULT ast_lock_path_lockfile(const char *path)
01241 {
01242 char *s;
01243 char *fs;
01244 int res;
01245 int fd;
01246 int lp = strlen(path);
01247 time_t start;
01248
01249 s = alloca(lp + 10);
01250 fs = alloca(lp + 20);
01251
01252 snprintf(fs, strlen(path) + 19, "%s/.lock-%08lx", path, ast_random());
01253 fd = open(fs, O_WRONLY | O_CREAT | O_EXCL, AST_FILE_MODE);
01254 if (fd < 0) {
01255 ast_log(LOG_ERROR, "Unable to create lock file '%s': %s\n", path, strerror(errno));
01256 return AST_LOCK_PATH_NOT_FOUND;
01257 }
01258 close(fd);
01259
01260 snprintf(s, strlen(path) + 9, "%s/.lock", path);
01261 start = time(NULL);
01262 while (((res = link(fs, s)) < 0) && (errno == EEXIST) && (time(NULL) - start < 5)) {
01263 sched_yield();
01264 }
01265
01266 unlink(fs);
01267
01268 if (res) {
01269 ast_log(LOG_WARNING, "Failed to lock path '%s': %s\n", path, strerror(errno));
01270 return AST_LOCK_TIMEOUT;
01271 } else {
01272 ast_debug(1, "Locked path '%s'\n", path);
01273 return AST_LOCK_SUCCESS;
01274 }
01275 }
01276
01277 static int ast_unlock_path_lockfile(const char *path)
01278 {
01279 char *s;
01280 int res;
01281
01282 s = alloca(strlen(path) + 10);
01283
01284 snprintf(s, strlen(path) + 9, "%s/%s", path, ".lock");
01285
01286 if ((res = unlink(s))) {
01287 ast_log(LOG_ERROR, "Could not unlock path '%s': %s\n", path, strerror(errno));
01288 } else {
01289 ast_debug(1, "Unlocked path '%s'\n", path);
01290 }
01291
01292 return res;
01293 }
01294
01295 struct path_lock {
01296 AST_LIST_ENTRY(path_lock) le;
01297 int fd;
01298 char *path;
01299 };
01300
01301 static AST_LIST_HEAD_STATIC(path_lock_list, path_lock);
01302
01303 static void path_lock_destroy(struct path_lock *obj)
01304 {
01305 if (obj->fd >= 0) {
01306 close(obj->fd);
01307 }
01308 if (obj->path) {
01309 free(obj->path);
01310 }
01311 free(obj);
01312 }
01313
01314 static enum AST_LOCK_RESULT ast_lock_path_flock(const char *path)
01315 {
01316 char *fs;
01317 int res;
01318 int fd;
01319 time_t start;
01320 struct path_lock *pl;
01321 struct stat st, ost;
01322
01323 fs = alloca(strlen(path) + 20);
01324
01325 snprintf(fs, strlen(path) + 19, "%s/lock", path);
01326 if (lstat(fs, &st) == 0) {
01327 if ((st.st_mode & S_IFMT) == S_IFLNK) {
01328 ast_log(LOG_WARNING, "Unable to create lock file "
01329 "'%s': it's already a symbolic link\n",
01330 fs);
01331 return AST_LOCK_FAILURE;
01332 }
01333 if (st.st_nlink > 1) {
01334 ast_log(LOG_WARNING, "Unable to create lock file "
01335 "'%s': %u hard links exist\n",
01336 fs, (unsigned int) st.st_nlink);
01337 return AST_LOCK_FAILURE;
01338 }
01339 }
01340 if ((fd = open(fs, O_WRONLY | O_CREAT, 0600)) < 0) {
01341 ast_log(LOG_WARNING, "Unable to create lock file '%s': %s\n",
01342 fs, strerror(errno));
01343 return AST_LOCK_PATH_NOT_FOUND;
01344 }
01345 if (!(pl = ast_calloc(1, sizeof(*pl)))) {
01346
01347
01348
01349
01350
01351 close(fd);
01352 return AST_LOCK_FAILURE;
01353 }
01354 pl->fd = fd;
01355 pl->path = strdup(path);
01356
01357 time(&start);
01358 while (
01359 #ifdef SOLARIS
01360 ((res = fcntl(pl->fd, F_SETLK, fcntl(pl->fd, F_GETFL) | O_NONBLOCK)) < 0) &&
01361 #else
01362 ((res = flock(pl->fd, LOCK_EX | LOCK_NB)) < 0) &&
01363 #endif
01364 (errno == EWOULDBLOCK) &&
01365 (time(NULL) - start < 5))
01366 usleep(1000);
01367 if (res) {
01368 ast_log(LOG_WARNING, "Failed to lock path '%s': %s\n",
01369 path, strerror(errno));
01370
01371
01372
01373 path_lock_destroy(pl);
01374 return AST_LOCK_TIMEOUT;
01375 }
01376
01377
01378
01379
01380 if (lstat(fs, &st) != 0 && fstat(pl->fd, &ost) != 0 &&
01381 st.st_dev != ost.st_dev &&
01382 st.st_ino != ost.st_ino) {
01383 ast_log(LOG_WARNING, "Unable to create lock file '%s': "
01384 "file changed underneath us\n", fs);
01385 path_lock_destroy(pl);
01386 return AST_LOCK_FAILURE;
01387 }
01388
01389
01390 AST_LIST_LOCK(&path_lock_list);
01391 AST_LIST_INSERT_TAIL(&path_lock_list, pl, le);
01392 AST_LIST_UNLOCK(&path_lock_list);
01393
01394 ast_debug(1, "Locked path '%s'\n", path);
01395
01396 return AST_LOCK_SUCCESS;
01397 }
01398
01399 static int ast_unlock_path_flock(const char *path)
01400 {
01401 char *s;
01402 struct path_lock *p;
01403
01404 s = alloca(strlen(path) + 20);
01405
01406 AST_LIST_LOCK(&path_lock_list);
01407 AST_LIST_TRAVERSE_SAFE_BEGIN(&path_lock_list, p, le) {
01408 if (!strcmp(p->path, path)) {
01409 AST_LIST_REMOVE_CURRENT(le);
01410 break;
01411 }
01412 }
01413 AST_LIST_TRAVERSE_SAFE_END;
01414 AST_LIST_UNLOCK(&path_lock_list);
01415
01416 if (p) {
01417 snprintf(s, strlen(path) + 19, "%s/lock", path);
01418 unlink(s);
01419 path_lock_destroy(p);
01420 ast_log(LOG_DEBUG, "Unlocked path '%s'\n", path);
01421 } else {
01422 ast_log(LOG_DEBUG, "Failed to unlock path '%s': "
01423 "lock not found\n", path);
01424 }
01425
01426 return 0;
01427 }
01428
01429 void ast_set_lock_type(enum AST_LOCK_TYPE type)
01430 {
01431 ast_lock_type = type;
01432 }
01433
01434 enum AST_LOCK_RESULT ast_lock_path(const char *path)
01435 {
01436 enum AST_LOCK_RESULT r = AST_LOCK_FAILURE;
01437
01438 switch (ast_lock_type) {
01439 case AST_LOCK_TYPE_LOCKFILE:
01440 r = ast_lock_path_lockfile(path);
01441 break;
01442 case AST_LOCK_TYPE_FLOCK:
01443 r = ast_lock_path_flock(path);
01444 break;
01445 }
01446
01447 return r;
01448 }
01449
01450 int ast_unlock_path(const char *path)
01451 {
01452 int r = 0;
01453
01454 switch (ast_lock_type) {
01455 case AST_LOCK_TYPE_LOCKFILE:
01456 r = ast_unlock_path_lockfile(path);
01457 break;
01458 case AST_LOCK_TYPE_FLOCK:
01459 r = ast_unlock_path_flock(path);
01460 break;
01461 }
01462
01463 return r;
01464 }
01465
01466 int ast_record_review(struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, const char *path)
01467 {
01468 int silencethreshold;
01469 int maxsilence = 0;
01470 int res = 0;
01471 int cmd = 0;
01472 int max_attempts = 3;
01473 int attempts = 0;
01474 int recorded = 0;
01475 int message_exists = 0;
01476
01477
01478
01479 if (!duration) {
01480 ast_log(LOG_WARNING, "Error ast_record_review called without duration pointer\n");
01481 return -1;
01482 }
01483
01484 cmd = '3';
01485
01486 silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
01487
01488 while ((cmd >= 0) && (cmd != 't')) {
01489 switch (cmd) {
01490 case '1':
01491 if (!message_exists) {
01492
01493 cmd = '3';
01494 break;
01495 } else {
01496 ast_stream_and_wait(chan, "vm-msgsaved", "");
01497 cmd = 't';
01498 return res;
01499 }
01500 case '2':
01501
01502 ast_verb(3, "Reviewing the recording\n");
01503 cmd = ast_stream_and_wait(chan, recordfile, AST_DIGIT_ANY);
01504 break;
01505 case '3':
01506 message_exists = 0;
01507
01508 ast_verb(3, "R%secording\n", recorded == 1 ? "e-r" : "");
01509 recorded = 1;
01510 if ((cmd = ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, silencethreshold, maxsilence, path)) == -1) {
01511
01512 return cmd;
01513 }
01514 if (cmd == '0') {
01515 break;
01516 } else if (cmd == '*') {
01517 break;
01518 } else {
01519
01520 message_exists = 1;
01521 cmd = 0;
01522 }
01523 break;
01524 case '4':
01525 case '5':
01526 case '6':
01527 case '7':
01528 case '8':
01529 case '9':
01530 case '*':
01531 case '#':
01532 cmd = ast_play_and_wait(chan, "vm-sorry");
01533 break;
01534 default:
01535 if (message_exists) {
01536 cmd = ast_play_and_wait(chan, "vm-review");
01537 } else {
01538 if (!(cmd = ast_play_and_wait(chan, "vm-torerecord"))) {
01539 cmd = ast_waitfordigit(chan, 600);
01540 }
01541 }
01542
01543 if (!cmd) {
01544 cmd = ast_waitfordigit(chan, 6000);
01545 }
01546 if (!cmd) {
01547 attempts++;
01548 }
01549 if (attempts > max_attempts) {
01550 cmd = 't';
01551 }
01552 }
01553 }
01554 if (cmd == 't') {
01555 cmd = 0;
01556 }
01557 return cmd;
01558 }
01559
01560 #define RES_UPONE (1 << 16)
01561 #define RES_EXIT (1 << 17)
01562 #define RES_REPEAT (1 << 18)
01563 #define RES_RESTART ((1 << 19) | RES_REPEAT)
01564
01565 static int ast_ivr_menu_run_internal(struct ast_channel *chan, struct ast_ivr_menu *menu, void *cbdata);
01566
01567 static int ivr_dispatch(struct ast_channel *chan, struct ast_ivr_option *option, char *exten, void *cbdata)
01568 {
01569 int res;
01570 int (*ivr_func)(struct ast_channel *, void *);
01571 char *c;
01572 char *n;
01573
01574 switch (option->action) {
01575 case AST_ACTION_UPONE:
01576 return RES_UPONE;
01577 case AST_ACTION_EXIT:
01578 return RES_EXIT | (((unsigned long)(option->adata)) & 0xffff);
01579 case AST_ACTION_REPEAT:
01580 return RES_REPEAT | (((unsigned long)(option->adata)) & 0xffff);
01581 case AST_ACTION_RESTART:
01582 return RES_RESTART ;
01583 case AST_ACTION_NOOP:
01584 return 0;
01585 case AST_ACTION_BACKGROUND:
01586 res = ast_stream_and_wait(chan, (char *)option->adata, AST_DIGIT_ANY);
01587 if (res < 0) {
01588 ast_log(LOG_NOTICE, "Unable to find file '%s'!\n", (char *)option->adata);
01589 res = 0;
01590 }
01591 return res;
01592 case AST_ACTION_PLAYBACK:
01593 res = ast_stream_and_wait(chan, (char *)option->adata, "");
01594 if (res < 0) {
01595 ast_log(LOG_NOTICE, "Unable to find file '%s'!\n", (char *)option->adata);
01596 res = 0;
01597 }
01598 return res;
01599 case AST_ACTION_MENU:
01600 if ((res = ast_ivr_menu_run_internal(chan, (struct ast_ivr_menu *)option->adata, cbdata)) == -2) {
01601
01602 res = 0;
01603 }
01604 return res;
01605 case AST_ACTION_WAITOPTION:
01606 if (!(res = ast_waitfordigit(chan, chan->pbx ? chan->pbx->rtimeoutms : 10000))) {
01607 return 't';
01608 }
01609 return res;
01610 case AST_ACTION_CALLBACK:
01611 ivr_func = option->adata;
01612 res = ivr_func(chan, cbdata);
01613 return res;
01614 case AST_ACTION_TRANSFER:
01615 res = ast_parseable_goto(chan, option->adata);
01616 return 0;
01617 case AST_ACTION_PLAYLIST:
01618 case AST_ACTION_BACKLIST:
01619 res = 0;
01620 c = ast_strdupa(option->adata);
01621 while ((n = strsep(&c, ";"))) {
01622 if ((res = ast_stream_and_wait(chan, n,
01623 (option->action == AST_ACTION_BACKLIST) ? AST_DIGIT_ANY : ""))) {
01624 break;
01625 }
01626 }
01627 ast_stopstream(chan);
01628 return res;
01629 default:
01630 ast_log(LOG_NOTICE, "Unknown dispatch function %d, ignoring!\n", option->action);
01631 return 0;
01632 }
01633 return -1;
01634 }
01635
01636 static int option_exists(struct ast_ivr_menu *menu, char *option)
01637 {
01638 int x;
01639 for (x = 0; menu->options[x].option; x++) {
01640 if (!strcasecmp(menu->options[x].option, option)) {
01641 return x;
01642 }
01643 }
01644 return -1;
01645 }
01646
01647 static int option_matchmore(struct ast_ivr_menu *menu, char *option)
01648 {
01649 int x;
01650 for (x = 0; menu->options[x].option; x++) {
01651 if ((!strncasecmp(menu->options[x].option, option, strlen(option))) &&
01652 (menu->options[x].option[strlen(option)])) {
01653 return x;
01654 }
01655 }
01656 return -1;
01657 }
01658
01659 static int read_newoption(struct ast_channel *chan, struct ast_ivr_menu *menu, char *exten, int maxexten)
01660 {
01661 int res = 0;
01662 int ms;
01663 while (option_matchmore(menu, exten)) {
01664 ms = chan->pbx ? chan->pbx->dtimeoutms : 5000;
01665 if (strlen(exten) >= maxexten - 1) {
01666 break;
01667 }
01668 if ((res = ast_waitfordigit(chan, ms)) < 1) {
01669 break;
01670 }
01671 exten[strlen(exten) + 1] = '\0';
01672 exten[strlen(exten)] = res;
01673 }
01674 return res > 0 ? 0 : res;
01675 }
01676
01677 static int ast_ivr_menu_run_internal(struct ast_channel *chan, struct ast_ivr_menu *menu, void *cbdata)
01678 {
01679
01680 int res = 0;
01681 int pos = 0;
01682 int retries = 0;
01683 char exten[AST_MAX_EXTENSION] = "s";
01684 if (option_exists(menu, "s") < 0) {
01685 strcpy(exten, "g");
01686 if (option_exists(menu, "g") < 0) {
01687 ast_log(LOG_WARNING, "No 's' nor 'g' extension in menu '%s'!\n", menu->title);
01688 return -1;
01689 }
01690 }
01691 while (!res) {
01692 while (menu->options[pos].option) {
01693 if (!strcasecmp(menu->options[pos].option, exten)) {
01694 res = ivr_dispatch(chan, menu->options + pos, exten, cbdata);
01695 ast_debug(1, "IVR Dispatch of '%s' (pos %d) yields %d\n", exten, pos, res);
01696 if (res < 0) {
01697 break;
01698 } else if (res & RES_UPONE) {
01699 return 0;
01700 } else if (res & RES_EXIT) {
01701 return res;
01702 } else if (res & RES_REPEAT) {
01703 int maxretries = res & 0xffff;
01704 if ((res & RES_RESTART) == RES_RESTART) {
01705 retries = 0;
01706 } else {
01707 retries++;
01708 }
01709 if (!maxretries) {
01710 maxretries = 3;
01711 }
01712 if ((maxretries > 0) && (retries >= maxretries)) {
01713 ast_debug(1, "Max retries %d exceeded\n", maxretries);
01714 return -2;
01715 } else {
01716 if (option_exists(menu, "g") > -1) {
01717 strcpy(exten, "g");
01718 } else if (option_exists(menu, "s") > -1) {
01719 strcpy(exten, "s");
01720 }
01721 }
01722 pos = 0;
01723 continue;
01724 } else if (res && strchr(AST_DIGIT_ANY, res)) {
01725 ast_debug(1, "Got start of extension, %c\n", res);
01726 exten[1] = '\0';
01727 exten[0] = res;
01728 if ((res = read_newoption(chan, menu, exten, sizeof(exten)))) {
01729 break;
01730 }
01731 if (option_exists(menu, exten) < 0) {
01732 if (option_exists(menu, "i")) {
01733 ast_debug(1, "Invalid extension entered, going to 'i'!\n");
01734 strcpy(exten, "i");
01735 pos = 0;
01736 continue;
01737 } else {
01738 ast_debug(1, "Aborting on invalid entry, with no 'i' option!\n");
01739 res = -2;
01740 break;
01741 }
01742 } else {
01743 ast_debug(1, "New existing extension: %s\n", exten);
01744 pos = 0;
01745 continue;
01746 }
01747 }
01748 }
01749 pos++;
01750 }
01751 ast_debug(1, "Stopping option '%s', res is %d\n", exten, res);
01752 pos = 0;
01753 if (!strcasecmp(exten, "s")) {
01754 strcpy(exten, "g");
01755 } else {
01756 break;
01757 }
01758 }
01759 return res;
01760 }
01761
01762 int ast_ivr_menu_run(struct ast_channel *chan, struct ast_ivr_menu *menu, void *cbdata)
01763 {
01764 int res = ast_ivr_menu_run_internal(chan, menu, cbdata);
01765
01766 return res > 0 ? 0 : res;
01767 }
01768
01769 char *ast_read_textfile(const char *filename)
01770 {
01771 int fd, count = 0, res;
01772 char *output = NULL;
01773 struct stat filesize;
01774
01775 if (stat(filename, &filesize) == -1) {
01776 ast_log(LOG_WARNING, "Error can't stat %s\n", filename);
01777 return NULL;
01778 }
01779
01780 count = filesize.st_size + 1;
01781
01782 if ((fd = open(filename, O_RDONLY)) < 0) {
01783 ast_log(LOG_WARNING, "Cannot open file '%s' for reading: %s\n", filename, strerror(errno));
01784 return NULL;
01785 }
01786
01787 if ((output = ast_malloc(count))) {
01788 res = read(fd, output, count - 1);
01789 if (res == count - 1) {
01790 output[res] = '\0';
01791 } else {
01792 ast_log(LOG_WARNING, "Short read of %s (%d of %d): %s\n", filename, res, count - 1, strerror(errno));
01793 ast_free(output);
01794 output = NULL;
01795 }
01796 }
01797
01798 close(fd);
01799
01800 return output;
01801 }
01802
01803 int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags *flags, char **args, char *optstr)
01804 {
01805 char *s, *arg;
01806 int curarg, res = 0;
01807 unsigned int argloc;
01808
01809 ast_clear_flag(flags, AST_FLAGS_ALL);
01810
01811 if (!optstr) {
01812 return 0;
01813 }
01814
01815 s = optstr;
01816 while (*s) {
01817 curarg = *s++ & 0x7f;
01818 argloc = options[curarg].arg_index;
01819 if (*s == '(') {
01820
01821 arg = ++s;
01822 if ((s = strchr(s, ')'))) {
01823 if (argloc) {
01824 args[argloc - 1] = arg;
01825 }
01826 *s++ = '\0';
01827 } else {
01828 ast_log(LOG_WARNING, "Missing closing parenthesis for argument '%c' in string '%s'\n", curarg, arg);
01829 res = -1;
01830 break;
01831 }
01832 } else if (argloc) {
01833 args[argloc - 1] = "";
01834 }
01835 ast_set_flag(flags, options[curarg].flag);
01836 }
01837
01838 return res;
01839 }
01840
01841
01842
01843
01844
01845 int ast_app_parse_options64(const struct ast_app_option *options, struct ast_flags64 *flags, char **args, char *optstr)
01846 {
01847 char *s, *arg;
01848 int curarg, res = 0;
01849 unsigned int argloc;
01850
01851 flags->flags = 0;
01852
01853 if (!optstr) {
01854 return 0;
01855 }
01856
01857 s = optstr;
01858 while (*s) {
01859 curarg = *s++ & 0x7f;
01860 ast_set_flag64(flags, options[curarg].flag);
01861 argloc = options[curarg].arg_index;
01862 if (*s == '(') {
01863
01864 arg = ++s;
01865 if ((s = strchr(s, ')'))) {
01866 if (argloc) {
01867 args[argloc - 1] = arg;
01868 }
01869 *s++ = '\0';
01870 } else {
01871 ast_log(LOG_WARNING, "Missing closing parenthesis for argument '%c' in string '%s'\n", curarg, arg);
01872 res = -1;
01873 break;
01874 }
01875 } else if (argloc) {
01876 args[argloc - 1] = NULL;
01877 }
01878 }
01879
01880 return res;
01881 }
01882
01883 void ast_app_options2str64(const struct ast_app_option *options, struct ast_flags64 *flags, char *buf, size_t len)
01884 {
01885 unsigned int i, found = 0;
01886 for (i = 32; i < 128 && found < len; i++) {
01887 if (ast_test_flag64(flags, options[i].flag)) {
01888 buf[found++] = i;
01889 }
01890 }
01891 buf[found] = '\0';
01892 }
01893
01894 int ast_get_encoded_char(const char *stream, char *result, size_t *consumed)
01895 {
01896 int i;
01897 *consumed = 1;
01898 *result = 0;
01899 if (ast_strlen_zero(stream)) {
01900 *consumed = 0;
01901 return -1;
01902 }
01903
01904 if (*stream == '\\') {
01905 *consumed = 2;
01906 switch (*(stream + 1)) {
01907 case 'n':
01908 *result = '\n';
01909 break;
01910 case 'r':
01911 *result = '\r';
01912 break;
01913 case 't':
01914 *result = '\t';
01915 break;
01916 case 'x':
01917
01918 if (strchr("0123456789ABCDEFabcdef", *(stream + 2)) && *(stream + 2) != '\0') {
01919 *consumed = 3;
01920 if (*(stream + 2) <= '9') {
01921 *result = *(stream + 2) - '0';
01922 } else if (*(stream + 2) <= 'F') {
01923 *result = *(stream + 2) - 'A' + 10;
01924 } else {
01925 *result = *(stream + 2) - 'a' + 10;
01926 }
01927 } else {
01928 ast_log(LOG_ERROR, "Illegal character '%c' in hexadecimal string\n", *(stream + 2));
01929 return -1;
01930 }
01931
01932 if (strchr("0123456789ABCDEFabcdef", *(stream + 3)) && *(stream + 3) != '\0') {
01933 *consumed = 4;
01934 *result <<= 4;
01935 if (*(stream + 3) <= '9') {
01936 *result += *(stream + 3) - '0';
01937 } else if (*(stream + 3) <= 'F') {
01938 *result += *(stream + 3) - 'A' + 10;
01939 } else {
01940 *result += *(stream + 3) - 'a' + 10;
01941 }
01942 }
01943 break;
01944 case '0':
01945
01946 *consumed = 2;
01947 for (i = 2; ; i++) {
01948 if (strchr("01234567", *(stream + i)) && *(stream + i) != '\0') {
01949 (*consumed)++;
01950 ast_debug(5, "result was %d, ", *result);
01951 *result <<= 3;
01952 *result += *(stream + i) - '0';
01953 ast_debug(5, "is now %d\n", *result);
01954 } else {
01955 break;
01956 }
01957 }
01958 break;
01959 default:
01960 *result = *(stream + 1);
01961 }
01962 } else {
01963 *result = *stream;
01964 *consumed = 1;
01965 }
01966 return 0;
01967 }
01968
01969 char *ast_get_encoded_str(const char *stream, char *result, size_t result_size)
01970 {
01971 char *cur = result;
01972 size_t consumed;
01973
01974 while (cur < result + result_size - 1 && !ast_get_encoded_char(stream, cur, &consumed)) {
01975 cur++;
01976 stream += consumed;
01977 }
01978 *cur = '\0';
01979 return result;
01980 }
01981
01982 int ast_str_get_encoded_str(struct ast_str **str, int maxlen, const char *stream)
01983 {
01984 char next, *buf;
01985 size_t offset = 0;
01986 size_t consumed;
01987
01988 if (strchr(stream, '\\')) {
01989 while (!ast_get_encoded_char(stream, &next, &consumed)) {
01990 if (offset + 2 > ast_str_size(*str) && maxlen > -1) {
01991 ast_str_make_space(str, maxlen > 0 ? maxlen : (ast_str_size(*str) + 48) * 2 - 48);
01992 }
01993 if (offset + 2 > ast_str_size(*str)) {
01994 break;
01995 }
01996 buf = ast_str_buffer(*str);
01997 buf[offset++] = next;
01998 stream += consumed;
01999 }
02000 buf = ast_str_buffer(*str);
02001 buf[offset++] = '\0';
02002 ast_str_update(*str);
02003 } else {
02004 ast_str_set(str, maxlen, "%s", stream);
02005 }
02006 return 0;
02007 }
02008
02009 void ast_close_fds_above_n(int n)
02010 {
02011 #ifdef HAVE_CLOSEFROM
02012 closefrom(n + 1);
02013 #else
02014 int x, null;
02015 struct rlimit rl;
02016 getrlimit(RLIMIT_NOFILE, &rl);
02017 null = open("/dev/null", O_RDONLY);
02018 for (x = n + 1; x < rl.rlim_cur; x++) {
02019 if (x != null) {
02020
02021
02022
02023 while (dup2(null, x) < 0 && errno == EINTR);
02024 close(x);
02025 }
02026 }
02027 close(null);
02028 #endif
02029 }
02030
02031 int ast_safe_fork(int stop_reaper)
02032 {
02033 sigset_t signal_set, old_set;
02034 int pid;
02035
02036
02037 if (stop_reaper) {
02038 ast_replace_sigchld();
02039 }
02040
02041 sigfillset(&signal_set);
02042 pthread_sigmask(SIG_BLOCK, &signal_set, &old_set);
02043
02044 pid = fork();
02045
02046 if (pid != 0) {
02047
02048 pthread_sigmask(SIG_SETMASK, &old_set, NULL);
02049 return pid;
02050 } else {
02051
02052 #ifdef HAVE_CAP
02053 cap_t cap = cap_from_text("cap_net_admin-eip");
02054
02055 if (cap_set_proc(cap)) {
02056 ast_log(LOG_WARNING, "Unable to remove capabilities.\n");
02057 }
02058 cap_free(cap);
02059 #endif
02060
02061
02062 signal(SIGHUP, SIG_DFL);
02063 signal(SIGCHLD, SIG_DFL);
02064 signal(SIGINT, SIG_DFL);
02065 signal(SIGURG, SIG_DFL);
02066 signal(SIGTERM, SIG_DFL);
02067 signal(SIGPIPE, SIG_DFL);
02068 signal(SIGXFSZ, SIG_DFL);
02069
02070
02071 if (pthread_sigmask(SIG_UNBLOCK, &signal_set, NULL)) {
02072 ast_log(LOG_WARNING, "unable to unblock signals: %s\n", strerror(errno));
02073 _exit(1);
02074 }
02075
02076 return pid;
02077 }
02078 }
02079
02080 void ast_safe_fork_cleanup(void)
02081 {
02082 ast_unreplace_sigchld();
02083 }
02084
02085 int ast_app_parse_timelen(const char *timestr, int *result, enum ast_timelen unit)
02086 {
02087 int res;
02088 char u[10];
02089 #ifdef HAVE_LONG_DOUBLE_WIDER
02090 long double amount;
02091 #define FMT "%30Lf%9s"
02092 #else
02093 double amount;
02094 #define FMT "%30lf%9s"
02095 #endif
02096 if (!timestr) {
02097 return -1;
02098 }
02099
02100 if ((res = sscanf(timestr, FMT, &amount, u)) == 0) {
02101 #undef FMT
02102 return -1;
02103 } else if (res == 2) {
02104 switch (u[0]) {
02105 case 'h':
02106 case 'H':
02107 unit = TIMELEN_HOURS;
02108 break;
02109 case 's':
02110 case 'S':
02111 unit = TIMELEN_SECONDS;
02112 break;
02113 case 'm':
02114 case 'M':
02115 if (toupper(u[1]) == 'S') {
02116 unit = TIMELEN_MILLISECONDS;
02117 } else if (u[1] == '\0') {
02118 unit = TIMELEN_MINUTES;
02119 }
02120 break;
02121 }
02122 }
02123
02124 switch (unit) {
02125 case TIMELEN_HOURS:
02126 amount *= 60;
02127
02128 case TIMELEN_MINUTES:
02129 amount *= 60;
02130
02131 case TIMELEN_SECONDS:
02132 amount *= 1000;
02133
02134 case TIMELEN_MILLISECONDS:
02135 ;
02136 }
02137 *result = amount > INT_MAX ? INT_MAX : (int) amount;
02138 return 0;
02139 }
02140