00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
00025
00026
00027
00028
00029
00030
00031
00032
00033
00034
00035
00036 #include "asterisk.h"
00037
00038 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 366048 $")
00039
00040 #include <ctype.h>
00041 #include <errno.h>
00042
00043 #include "asterisk/paths.h"
00044 #include "asterisk/file.h"
00045 #include "asterisk/channel.h"
00046 #include "asterisk/audiohook.h"
00047 #include "asterisk/features.h"
00048 #include "asterisk/app.h"
00049 #include "asterisk/utils.h"
00050 #include "asterisk/say.h"
00051 #include "asterisk/pbx.h"
00052 #include "asterisk/translate.h"
00053 #include "asterisk/manager.h"
00054 #include "asterisk/module.h"
00055 #include "asterisk/lock.h"
00056 #include "asterisk/options.h"
00057 #include "asterisk/autochan.h"
00058
00059 #define AST_NAME_STRLEN 256
00060 #define NUM_SPYGROUPS 128
00061
00062
00063
00064
00065
00066
00067
00068
00069
00070
00071
00072
00073
00074
00075
00076
00077
00078
00079
00080
00081
00082
00083
00084
00085
00086
00087
00088
00089
00090
00091
00092
00093
00094
00095
00096
00097
00098
00099
00100
00101
00102
00103
00104
00105
00106
00107
00108
00109
00110
00111
00112
00113
00114
00115
00116
00117
00118
00119
00120
00121
00122
00123
00124
00125
00126
00127
00128
00129
00130
00131
00132
00133
00134
00135
00136
00137
00138
00139
00140
00141
00142
00143
00144
00145
00146
00147
00148
00149
00150
00151
00152
00153
00154
00155
00156
00157
00158
00159
00160
00161
00162
00163
00164
00165
00166
00167
00168
00169
00170
00171
00172
00173
00174
00175
00176
00177
00178
00179
00180
00181
00182
00183
00184
00185
00186
00187
00188
00189
00190
00191
00192
00193
00194
00195
00196
00197
00198
00199
00200
00201
00202
00203
00204
00205
00206
00207
00208
00209
00210
00211
00212
00213
00214
00215
00216
00217
00218
00219
00220
00221
00222
00223
00224
00225
00226
00227
00228
00229
00230
00231
00232
00233
00234
00235
00236
00237
00238
00239
00240
00241
00242
00243
00244
00245
00246
00247
00248
00249
00250
00251
00252
00253
00254
00255
00256
00257
00258
00259
00260
00261
00262
00263
00264
00265
00266
00267
00268
00269
00270
00271
00272
00273
00274
00275
00276
00277
00278
00279
00280
00281
00282
00283
00284
00285
00286
00287
00288
00289
00290
00291
00292
00293
00294
00295
00296
00297
00298
00299
00300
00301
00302
00303
00304
00305
00306
00307
00308
00309
00310
00311
00312
00313
00314
00315
00316
00317
00318
00319
00320
00321
00322
00323
00324
00325
00326
00327
00328
00329
00330
00331
00332
00333
00334
00335
00336
00337
00338
00339
00340
00341
00342
00343
00344 static const char app_chan[] = "ChanSpy";
00345
00346 static const char app_ext[] = "ExtenSpy";
00347
00348 static const char app_dahdiscan[] = "DAHDIScan";
00349
00350 enum {
00351 OPTION_QUIET = (1 << 0),
00352 OPTION_BRIDGED = (1 << 1),
00353 OPTION_VOLUME = (1 << 2),
00354 OPTION_GROUP = (1 << 3),
00355 OPTION_RECORD = (1 << 4),
00356 OPTION_WHISPER = (1 << 5),
00357 OPTION_PRIVATE = (1 << 6),
00358 OPTION_READONLY = (1 << 7),
00359 OPTION_EXIT = (1 << 8),
00360 OPTION_ENFORCED = (1 << 9),
00361 OPTION_NOTECH = (1 << 10),
00362 OPTION_BARGE = (1 << 11),
00363 OPTION_NAME = (1 << 12),
00364 OPTION_DTMF_SWITCH_MODES = (1 << 13),
00365 OPTION_DTMF_EXIT = (1 << 14),
00366 OPTION_DTMF_CYCLE = (1 << 15),
00367 OPTION_DAHDI_SCAN = (1 << 16),
00368 OPTION_STOP = (1 << 17),
00369 OPTION_EXITONHANGUP = (1 << 18),
00370 };
00371
00372 enum {
00373 OPT_ARG_VOLUME = 0,
00374 OPT_ARG_GROUP,
00375 OPT_ARG_RECORD,
00376 OPT_ARG_ENFORCED,
00377 OPT_ARG_NAME,
00378 OPT_ARG_EXIT,
00379 OPT_ARG_CYCLE,
00380 OPT_ARG_ARRAY_SIZE,
00381 };
00382
00383 AST_APP_OPTIONS(spy_opts, {
00384 AST_APP_OPTION('b', OPTION_BRIDGED),
00385 AST_APP_OPTION('B', OPTION_BARGE),
00386 AST_APP_OPTION_ARG('c', OPTION_DTMF_CYCLE, OPT_ARG_CYCLE),
00387 AST_APP_OPTION('d', OPTION_DTMF_SWITCH_MODES),
00388 AST_APP_OPTION_ARG('e', OPTION_ENFORCED, OPT_ARG_ENFORCED),
00389 AST_APP_OPTION('E', OPTION_EXITONHANGUP),
00390 AST_APP_OPTION_ARG('g', OPTION_GROUP, OPT_ARG_GROUP),
00391 AST_APP_OPTION_ARG('n', OPTION_NAME, OPT_ARG_NAME),
00392 AST_APP_OPTION('o', OPTION_READONLY),
00393 AST_APP_OPTION('q', OPTION_QUIET),
00394 AST_APP_OPTION_ARG('r', OPTION_RECORD, OPT_ARG_RECORD),
00395 AST_APP_OPTION('s', OPTION_NOTECH),
00396 AST_APP_OPTION('S', OPTION_STOP),
00397 AST_APP_OPTION_ARG('v', OPTION_VOLUME, OPT_ARG_VOLUME),
00398 AST_APP_OPTION('w', OPTION_WHISPER),
00399 AST_APP_OPTION('W', OPTION_PRIVATE),
00400 AST_APP_OPTION_ARG('x', OPTION_DTMF_EXIT, OPT_ARG_EXIT),
00401 AST_APP_OPTION('X', OPTION_EXIT),
00402 });
00403
00404 struct chanspy_translation_helper {
00405
00406 struct ast_audiohook spy_audiohook;
00407 struct ast_audiohook whisper_audiohook;
00408 struct ast_audiohook bridge_whisper_audiohook;
00409 int fd;
00410 int volfactor;
00411 struct ast_flags flags;
00412 };
00413
00414 struct spy_dtmf_options {
00415 char exit;
00416 char cycle;
00417 char volume;
00418 };
00419
00420 static void *spy_alloc(struct ast_channel *chan, void *data)
00421 {
00422
00423 return data;
00424 }
00425
00426 static void spy_release(struct ast_channel *chan, void *data)
00427 {
00428
00429 }
00430
00431 static int spy_generate(struct ast_channel *chan, void *data, int len, int samples)
00432 {
00433 struct chanspy_translation_helper *csth = data;
00434 struct ast_frame *f, *cur;
00435
00436 ast_audiohook_lock(&csth->spy_audiohook);
00437 if (csth->spy_audiohook.status != AST_AUDIOHOOK_STATUS_RUNNING) {
00438
00439 ast_audiohook_unlock(&csth->spy_audiohook);
00440 return -1;
00441 }
00442
00443 if (ast_test_flag(&csth->flags, OPTION_READONLY)) {
00444
00445 f = ast_audiohook_read_frame(&csth->spy_audiohook, samples, AST_AUDIOHOOK_DIRECTION_READ, AST_FORMAT_SLINEAR);
00446 } else {
00447 f = ast_audiohook_read_frame(&csth->spy_audiohook, samples, AST_AUDIOHOOK_DIRECTION_BOTH, AST_FORMAT_SLINEAR);
00448 }
00449
00450 ast_audiohook_unlock(&csth->spy_audiohook);
00451
00452 if (!f)
00453 return 0;
00454
00455 for (cur = f; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
00456 if (ast_write(chan, cur)) {
00457 ast_frfree(f);
00458 return -1;
00459 }
00460
00461 if (csth->fd) {
00462 if (write(csth->fd, cur->data.ptr, cur->datalen) < 0) {
00463 ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
00464 }
00465 }
00466 }
00467
00468 ast_frfree(f);
00469
00470 return 0;
00471 }
00472
00473 static struct ast_generator spygen = {
00474 .alloc = spy_alloc,
00475 .release = spy_release,
00476 .generate = spy_generate,
00477 };
00478
00479 static int start_spying(struct ast_autochan *autochan, const char *spychan_name, struct ast_audiohook *audiohook)
00480 {
00481 int res = 0;
00482 struct ast_channel *peer = NULL;
00483
00484 ast_log(LOG_NOTICE, "Attaching %s to %s\n", spychan_name, autochan->chan->name);
00485
00486 ast_set_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC | AST_AUDIOHOOK_SMALL_QUEUE);
00487 res = ast_audiohook_attach(autochan->chan, audiohook);
00488
00489 if (!res && ast_test_flag(autochan->chan, AST_FLAG_NBRIDGE) && (peer = ast_bridged_channel(autochan->chan))) {
00490 ast_softhangup(peer, AST_SOFTHANGUP_UNBRIDGE);
00491 }
00492 return res;
00493 }
00494
00495 static void change_spy_mode(const char digit, struct ast_flags *flags)
00496 {
00497 if (digit == '4') {
00498 ast_clear_flag(flags, OPTION_WHISPER);
00499 ast_clear_flag(flags, OPTION_BARGE);
00500 } else if (digit == '5') {
00501 ast_clear_flag(flags, OPTION_BARGE);
00502 ast_set_flag(flags, OPTION_WHISPER);
00503 } else if (digit == '6') {
00504 ast_clear_flag(flags, OPTION_WHISPER);
00505 ast_set_flag(flags, OPTION_BARGE);
00506 }
00507 }
00508
00509 static int channel_spy(struct ast_channel *chan, struct ast_autochan *spyee_autochan,
00510 int *volfactor, int fd, struct spy_dtmf_options *user_options, struct ast_flags *flags,
00511 char *exitcontext)
00512 {
00513 struct chanspy_translation_helper csth;
00514 int running = 0, res, x = 0;
00515 char inp[24] = {0};
00516 char *name;
00517 struct ast_frame *f;
00518 struct ast_silence_generator *silgen = NULL;
00519 struct ast_autochan *spyee_bridge_autochan = NULL;
00520 const char *spyer_name;
00521 struct ast_channel *chans[] = { chan, spyee_autochan->chan };
00522
00523 ast_channel_lock(chan);
00524 spyer_name = ast_strdupa(chan->name);
00525 ast_channel_unlock(chan);
00526
00527
00528
00529 if (ast_check_hangup(chan) || ast_check_hangup(spyee_autochan->chan) ||
00530 ast_test_flag(spyee_autochan->chan, AST_FLAG_ZOMBIE)) {
00531 return 0;
00532 }
00533
00534 ast_channel_lock(spyee_autochan->chan);
00535 name = ast_strdupa(spyee_autochan->chan->name);
00536 ast_channel_unlock(spyee_autochan->chan);
00537
00538 ast_verb(2, "Spying on channel %s\n", name);
00539 ast_manager_event_multichan(EVENT_FLAG_CALL, "ChanSpyStart", 2, chans,
00540 "SpyerChannel: %s\r\n"
00541 "SpyeeChannel: %s\r\n",
00542 spyer_name, name);
00543
00544 memset(&csth, 0, sizeof(csth));
00545 ast_copy_flags(&csth.flags, flags, AST_FLAGS_ALL);
00546
00547
00548
00549
00550 ast_audiohook_init(&csth.spy_audiohook, AST_AUDIOHOOK_TYPE_SPY, "ChanSpy");
00551
00552 if (start_spying(spyee_autochan, spyer_name, &csth.spy_audiohook)) {
00553 ast_audiohook_destroy(&csth.spy_audiohook);
00554 return 0;
00555 }
00556
00557 if (ast_test_flag(flags, OPTION_WHISPER | OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00558
00559
00560
00561 ast_audiohook_init(&csth.whisper_audiohook, AST_AUDIOHOOK_TYPE_WHISPER, "ChanSpy");
00562
00563 if (start_spying(spyee_autochan, spyer_name, &csth.whisper_audiohook)) {
00564 ast_log(LOG_WARNING, "Unable to attach whisper audiohook to spyee %s. Whisper mode disabled!\n", name);
00565 }
00566 }
00567
00568 if (ast_test_flag(flags, OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00569
00570
00571
00572 ast_audiohook_init(&csth.bridge_whisper_audiohook, AST_AUDIOHOOK_TYPE_WHISPER, "Chanspy");
00573
00574 if ((spyee_bridge_autochan = ast_autochan_setup(ast_bridged_channel(spyee_autochan->chan)))) {
00575 ast_channel_lock(spyee_bridge_autochan->chan);
00576 if (start_spying(spyee_bridge_autochan, spyer_name, &csth.bridge_whisper_audiohook)) {
00577 ast_log(LOG_WARNING, "Unable to attach barge audiohook on spyee %s. Barge mode disabled!\n", name);
00578 }
00579 ast_channel_unlock(spyee_bridge_autochan->chan);
00580 }
00581 }
00582
00583 ast_channel_lock(chan);
00584 ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
00585 ast_channel_unlock(chan);
00586
00587 csth.volfactor = *volfactor;
00588
00589 if (csth.volfactor) {
00590 csth.spy_audiohook.options.read_volume = csth.volfactor;
00591 csth.spy_audiohook.options.write_volume = csth.volfactor;
00592 }
00593
00594 csth.fd = fd;
00595
00596 if (ast_test_flag(flags, OPTION_PRIVATE))
00597 silgen = ast_channel_start_silence_generator(chan);
00598 else
00599 ast_activate_generator(chan, &spygen, &csth);
00600
00601
00602
00603
00604
00605
00606
00607
00608
00609
00610
00611
00612
00613
00614
00615 while ((res = ast_waitfor(chan, -1) > -1) && csth.spy_audiohook.status == AST_AUDIOHOOK_STATUS_RUNNING) {
00616 if (!(f = ast_read(chan)) || ast_check_hangup(chan)) {
00617 running = -1;
00618 break;
00619 }
00620
00621 if (ast_test_flag(flags, OPTION_BARGE) && f->frametype == AST_FRAME_VOICE) {
00622 ast_audiohook_lock(&csth.whisper_audiohook);
00623 ast_audiohook_lock(&csth.bridge_whisper_audiohook);
00624 ast_audiohook_write_frame(&csth.whisper_audiohook, AST_AUDIOHOOK_DIRECTION_WRITE, f);
00625 ast_audiohook_write_frame(&csth.bridge_whisper_audiohook, AST_AUDIOHOOK_DIRECTION_WRITE, f);
00626 ast_audiohook_unlock(&csth.whisper_audiohook);
00627 ast_audiohook_unlock(&csth.bridge_whisper_audiohook);
00628 ast_frfree(f);
00629 continue;
00630 } else if (ast_test_flag(flags, OPTION_WHISPER) && f->frametype == AST_FRAME_VOICE) {
00631 ast_audiohook_lock(&csth.whisper_audiohook);
00632 ast_audiohook_write_frame(&csth.whisper_audiohook, AST_AUDIOHOOK_DIRECTION_WRITE, f);
00633 ast_audiohook_unlock(&csth.whisper_audiohook);
00634 ast_frfree(f);
00635 continue;
00636 }
00637
00638 res = (f->frametype == AST_FRAME_DTMF) ? f->subclass.integer : 0;
00639 ast_frfree(f);
00640 if (!res)
00641 continue;
00642
00643 if (x == sizeof(inp))
00644 x = 0;
00645
00646 if (res < 0) {
00647 running = -1;
00648 break;
00649 }
00650
00651 if (ast_test_flag(flags, OPTION_EXIT)) {
00652 char tmp[2];
00653 tmp[0] = res;
00654 tmp[1] = '\0';
00655 if (!ast_goto_if_exists(chan, exitcontext, tmp, 1)) {
00656 ast_debug(1, "Got DTMF %c, goto context %s\n", tmp[0], exitcontext);
00657 pbx_builtin_setvar_helper(chan, "SPY_CHANNEL", name);
00658 running = -2;
00659 break;
00660 } else {
00661 ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
00662 }
00663 } else if (res >= '0' && res <= '9') {
00664 if (ast_test_flag(flags, OPTION_DTMF_SWITCH_MODES)) {
00665 change_spy_mode(res, flags);
00666 } else {
00667 inp[x++] = res;
00668 }
00669 }
00670
00671 if (res == user_options->cycle) {
00672 running = 0;
00673 break;
00674 } else if (res == user_options->exit) {
00675 running = -2;
00676 break;
00677 } else if (res == user_options->volume) {
00678 if (!ast_strlen_zero(inp)) {
00679 running = atoi(inp);
00680 break;
00681 }
00682
00683 (*volfactor)++;
00684 if (*volfactor > 4)
00685 *volfactor = -4;
00686 ast_verb(3, "Setting spy volume on %s to %d\n", chan->name, *volfactor);
00687
00688 csth.volfactor = *volfactor;
00689 csth.spy_audiohook.options.read_volume = csth.volfactor;
00690 csth.spy_audiohook.options.write_volume = csth.volfactor;
00691 }
00692 }
00693
00694 if (ast_test_flag(flags, OPTION_PRIVATE))
00695 ast_channel_stop_silence_generator(chan, silgen);
00696 else
00697 ast_deactivate_generator(chan);
00698
00699 ast_channel_lock(chan);
00700 ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
00701 ast_channel_unlock(chan);
00702
00703 if (ast_test_flag(flags, OPTION_WHISPER | OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00704 ast_audiohook_lock(&csth.whisper_audiohook);
00705 ast_audiohook_detach(&csth.whisper_audiohook);
00706 ast_audiohook_unlock(&csth.whisper_audiohook);
00707 ast_audiohook_destroy(&csth.whisper_audiohook);
00708 }
00709
00710 if (ast_test_flag(flags, OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00711 ast_audiohook_lock(&csth.bridge_whisper_audiohook);
00712 ast_audiohook_detach(&csth.bridge_whisper_audiohook);
00713 ast_audiohook_unlock(&csth.bridge_whisper_audiohook);
00714 ast_audiohook_destroy(&csth.bridge_whisper_audiohook);
00715 }
00716
00717 ast_audiohook_lock(&csth.spy_audiohook);
00718 ast_audiohook_detach(&csth.spy_audiohook);
00719 ast_audiohook_unlock(&csth.spy_audiohook);
00720 ast_audiohook_destroy(&csth.spy_audiohook);
00721
00722 if (spyee_bridge_autochan) {
00723 ast_autochan_destroy(spyee_bridge_autochan);
00724 }
00725
00726 ast_verb(2, "Done Spying on channel %s\n", name);
00727 ast_manager_event(chan, EVENT_FLAG_CALL, "ChanSpyStop", "SpyeeChannel: %s\r\n", name);
00728
00729 return running;
00730 }
00731
00732 static struct ast_autochan *next_channel(struct ast_channel_iterator *iter,
00733 struct ast_autochan *autochan, struct ast_channel *chan)
00734 {
00735 struct ast_channel *next;
00736 struct ast_autochan *autochan_store;
00737 const size_t pseudo_len = strlen("DAHDI/pseudo");
00738
00739 if (!iter) {
00740 return NULL;
00741 }
00742
00743 redo:
00744 if (!(next = ast_channel_iterator_next(iter))) {
00745 return NULL;
00746 }
00747
00748 if (!strncmp(next->name, "DAHDI/pseudo", pseudo_len)) {
00749 ast_channel_unref(next);
00750 goto redo;
00751 } else if (next == chan) {
00752 ast_channel_unref(next);
00753 goto redo;
00754 }
00755
00756 autochan_store = ast_autochan_setup(next);
00757 ast_channel_unref(next);
00758
00759 return autochan_store;
00760 }
00761
00762 static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
00763 int volfactor, const int fd, struct spy_dtmf_options *user_options,
00764 const char *mygroup, const char *myenforced, const char *spec, const char *exten,
00765 const char *context, const char *mailbox, const char *name_context)
00766 {
00767 char nameprefix[AST_NAME_STRLEN];
00768 char exitcontext[AST_MAX_CONTEXT] = "";
00769 signed char zero_volume = 0;
00770 int waitms;
00771 int res;
00772 int num_spyed_upon = 1;
00773 struct ast_channel_iterator *iter = NULL;
00774
00775 if (ast_test_flag(flags, OPTION_EXIT)) {
00776 const char *c;
00777 ast_channel_lock(chan);
00778 if ((c = pbx_builtin_getvar_helper(chan, "SPY_EXIT_CONTEXT"))) {
00779 ast_copy_string(exitcontext, c, sizeof(exitcontext));
00780 } else if (!ast_strlen_zero(chan->macrocontext)) {
00781 ast_copy_string(exitcontext, chan->macrocontext, sizeof(exitcontext));
00782 } else {
00783 ast_copy_string(exitcontext, chan->context, sizeof(exitcontext));
00784 }
00785 ast_channel_unlock(chan);
00786 }
00787
00788 if (chan->_state != AST_STATE_UP)
00789 ast_answer(chan);
00790
00791 ast_set_flag(chan, AST_FLAG_SPYING);
00792
00793 waitms = 100;
00794
00795 for (;;) {
00796 struct ast_autochan *autochan = NULL, *next_autochan = NULL;
00797 struct ast_channel *prev = NULL;
00798
00799 if (!ast_test_flag(flags, OPTION_QUIET) && num_spyed_upon) {
00800 res = ast_streamfile(chan, "beep", chan->language);
00801 if (!res)
00802 res = ast_waitstream(chan, "");
00803 else if (res < 0) {
00804 ast_clear_flag(chan, AST_FLAG_SPYING);
00805 break;
00806 }
00807 if (!ast_strlen_zero(exitcontext)) {
00808 char tmp[2];
00809 tmp[0] = res;
00810 tmp[1] = '\0';
00811 if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
00812 goto exit;
00813 else
00814 ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
00815 }
00816 }
00817
00818
00819 if (!ast_strlen_zero(spec)) {
00820 iter = ast_channel_iterator_by_name_new(spec, strlen(spec));
00821 } else if (!ast_strlen_zero(exten)) {
00822 iter = ast_channel_iterator_by_exten_new(exten, context);
00823 } else {
00824 iter = ast_channel_iterator_all_new();
00825 }
00826
00827 if (!iter) {
00828 res = -1;
00829 goto exit;
00830 }
00831
00832 res = ast_waitfordigit(chan, waitms);
00833 if (res < 0) {
00834 iter = ast_channel_iterator_destroy(iter);
00835 ast_clear_flag(chan, AST_FLAG_SPYING);
00836 break;
00837 }
00838 if (!ast_strlen_zero(exitcontext)) {
00839 char tmp[2];
00840 tmp[0] = res;
00841 tmp[1] = '\0';
00842 if (!ast_goto_if_exists(chan, exitcontext, tmp, 1)) {
00843 iter = ast_channel_iterator_destroy(iter);
00844 goto exit;
00845 } else {
00846 ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
00847 }
00848 }
00849
00850
00851 waitms = 100;
00852 num_spyed_upon = 0;
00853
00854 for (autochan = next_channel(iter, autochan, chan);
00855 autochan;
00856 prev = autochan->chan, ast_autochan_destroy(autochan),
00857 autochan = next_autochan ? next_autochan :
00858 next_channel(iter, autochan, chan), next_autochan = NULL) {
00859 int igrp = !mygroup;
00860 int ienf = !myenforced;
00861
00862 if (autochan->chan == prev) {
00863 ast_autochan_destroy(autochan);
00864 break;
00865 }
00866
00867 if (ast_check_hangup(chan)) {
00868 ast_autochan_destroy(autochan);
00869 break;
00870 }
00871
00872 if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(autochan->chan)) {
00873 continue;
00874 }
00875
00876 if (ast_check_hangup(autochan->chan) || ast_test_flag(autochan->chan, AST_FLAG_SPYING)) {
00877 continue;
00878 }
00879
00880 if (mygroup) {
00881 int num_groups = 0;
00882 int num_mygroups = 0;
00883 char dup_group[512];
00884 char dup_mygroup[512];
00885 char *groups[NUM_SPYGROUPS];
00886 char *mygroups[NUM_SPYGROUPS];
00887 const char *group = NULL;
00888 int x;
00889 int y;
00890 ast_copy_string(dup_mygroup, mygroup, sizeof(dup_mygroup));
00891 num_mygroups = ast_app_separate_args(dup_mygroup, ':', mygroups,
00892 ARRAY_LEN(mygroups));
00893
00894
00895
00896 if (ast_test_flag(flags, OPTION_DAHDI_SCAN)) {
00897 group = pbx_builtin_getvar_helper(autochan->chan, "GROUP");
00898 } else {
00899 group = pbx_builtin_getvar_helper(autochan->chan, "SPYGROUP");
00900 }
00901
00902 if (!ast_strlen_zero(group)) {
00903 ast_copy_string(dup_group, group, sizeof(dup_group));
00904 num_groups = ast_app_separate_args(dup_group, ':', groups,
00905 ARRAY_LEN(groups));
00906 }
00907
00908 for (y = 0; y < num_mygroups; y++) {
00909 for (x = 0; x < num_groups; x++) {
00910 if (!strcmp(mygroups[y], groups[x])) {
00911 igrp = 1;
00912 break;
00913 }
00914 }
00915 }
00916 }
00917
00918 if (!igrp) {
00919 continue;
00920 }
00921 if (myenforced) {
00922 char ext[AST_CHANNEL_NAME + 3];
00923 char buffer[512];
00924 char *end;
00925
00926 snprintf(buffer, sizeof(buffer) - 1, ":%s:", myenforced);
00927
00928 ast_copy_string(ext + 1, autochan->chan->name, sizeof(ext) - 1);
00929 if ((end = strchr(ext, '-'))) {
00930 *end++ = ':';
00931 *end = '\0';
00932 }
00933
00934 ext[0] = ':';
00935
00936 if (strcasestr(buffer, ext)) {
00937 ienf = 1;
00938 }
00939 }
00940
00941 if (!ienf) {
00942 continue;
00943 }
00944
00945
00946 if (!ast_test_flag(flags, OPTION_QUIET)) {
00947 char peer_name[AST_NAME_STRLEN + 5];
00948 char *ptr, *s;
00949
00950 strcpy(peer_name, "spy-");
00951 strncat(peer_name, autochan->chan->name, AST_NAME_STRLEN - 4 - 1);
00952 if ((ptr = strchr(peer_name, '/'))) {
00953 *ptr++ = '\0';
00954 for (s = peer_name; s < ptr; s++) {
00955 *s = tolower(*s);
00956 }
00957 if ((s = strchr(ptr, '-'))) {
00958 *s = '\0';
00959 }
00960 }
00961
00962 if (ast_test_flag(flags, OPTION_NAME)) {
00963 const char *local_context = S_OR(name_context, "default");
00964 const char *local_mailbox = S_OR(mailbox, ptr);
00965 if (local_mailbox) {
00966 res = ast_app_sayname(chan, local_mailbox, local_context);
00967 } else {
00968 res = -1;
00969 }
00970 }
00971 if (!ast_test_flag(flags, OPTION_NAME) || res < 0) {
00972 int num;
00973 if (!ast_test_flag(flags, OPTION_NOTECH)) {
00974 if (ast_fileexists(peer_name, NULL, NULL) > 0) {
00975 res = ast_streamfile(chan, peer_name, chan->language);
00976 if (!res) {
00977 res = ast_waitstream(chan, "");
00978 }
00979 if (res) {
00980 ast_autochan_destroy(autochan);
00981 break;
00982 }
00983 } else {
00984 res = ast_say_character_str(chan, peer_name, "", chan->language);
00985 }
00986 }
00987 if (ptr && (num = atoi(ptr))) {
00988 ast_say_digits(chan, num, "", chan->language);
00989 }
00990 }
00991 }
00992
00993 res = channel_spy(chan, autochan, &volfactor, fd, user_options, flags, exitcontext);
00994 num_spyed_upon++;
00995
00996 if (res == -1) {
00997 ast_autochan_destroy(autochan);
00998 iter = ast_channel_iterator_destroy(iter);
00999 goto exit;
01000 } else if (res == -2) {
01001 res = 0;
01002 ast_autochan_destroy(autochan);
01003 iter = ast_channel_iterator_destroy(iter);
01004 goto exit;
01005 } else if (res > 1 && spec) {
01006 struct ast_channel *next;
01007
01008 snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
01009
01010 if ((next = ast_channel_get_by_name_prefix(nameprefix, strlen(nameprefix)))) {
01011 next_autochan = ast_autochan_setup(next);
01012 next = ast_channel_unref(next);
01013 } else {
01014
01015 if (!ast_check_hangup(autochan->chan)) {
01016 next_autochan = ast_autochan_setup(autochan->chan);
01017 } else {
01018
01019 next_autochan = NULL;
01020 }
01021 }
01022 } else if (res == 0 && ast_test_flag(flags, OPTION_EXITONHANGUP)) {
01023 iter = ast_channel_iterator_destroy(iter);
01024 goto exit;
01025 }
01026 }
01027
01028 iter = ast_channel_iterator_destroy(iter);
01029
01030 if (res == -1 || ast_check_hangup(chan))
01031 break;
01032 if (ast_test_flag(flags, OPTION_STOP) && !next_autochan) {
01033 break;
01034 }
01035 }
01036 exit:
01037
01038 ast_clear_flag(chan, AST_FLAG_SPYING);
01039
01040 ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
01041
01042 return res;
01043 }
01044
01045 static int chanspy_exec(struct ast_channel *chan, const char *data)
01046 {
01047 char *myenforced = NULL;
01048 char *mygroup = NULL;
01049 char *recbase = NULL;
01050 int fd = 0;
01051 struct ast_flags flags;
01052 struct spy_dtmf_options user_options = {
01053 .cycle = '*',
01054 .volume = '#',
01055 .exit = '\0',
01056 };
01057 int oldwf = 0;
01058 int volfactor = 0;
01059 int res;
01060 char *mailbox = NULL;
01061 char *name_context = NULL;
01062 AST_DECLARE_APP_ARGS(args,
01063 AST_APP_ARG(spec);
01064 AST_APP_ARG(options);
01065 );
01066 char *opts[OPT_ARG_ARRAY_SIZE];
01067 char *parse = ast_strdupa(data);
01068
01069 AST_STANDARD_APP_ARGS(args, parse);
01070
01071 if (args.spec && !strcmp(args.spec, "all"))
01072 args.spec = NULL;
01073
01074 if (args.options) {
01075 char tmp;
01076 ast_app_parse_options(spy_opts, &flags, opts, args.options);
01077 if (ast_test_flag(&flags, OPTION_GROUP))
01078 mygroup = opts[OPT_ARG_GROUP];
01079
01080 if (ast_test_flag(&flags, OPTION_RECORD) &&
01081 !(recbase = opts[OPT_ARG_RECORD]))
01082 recbase = "chanspy";
01083
01084 if (ast_test_flag(&flags, OPTION_DTMF_EXIT) && opts[OPT_ARG_EXIT]) {
01085 tmp = opts[OPT_ARG_EXIT][0];
01086 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01087 user_options.exit = tmp;
01088 } else {
01089 ast_log(LOG_NOTICE, "Argument for option 'x' must be a valid DTMF digit.\n");
01090 }
01091 }
01092
01093 if (ast_test_flag(&flags, OPTION_DTMF_CYCLE) && opts[OPT_ARG_CYCLE]) {
01094 tmp = opts[OPT_ARG_CYCLE][0];
01095 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01096 user_options.cycle = tmp;
01097 } else {
01098 ast_log(LOG_NOTICE, "Argument for option 'c' must be a valid DTMF digit.\n");
01099 }
01100 }
01101
01102 if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
01103 int vol;
01104
01105 if ((sscanf(opts[OPT_ARG_VOLUME], "%30d", &vol) != 1) || (vol > 4) || (vol < -4))
01106 ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
01107 else
01108 volfactor = vol;
01109 }
01110
01111 if (ast_test_flag(&flags, OPTION_PRIVATE))
01112 ast_set_flag(&flags, OPTION_WHISPER);
01113
01114 if (ast_test_flag(&flags, OPTION_ENFORCED))
01115 myenforced = opts[OPT_ARG_ENFORCED];
01116
01117 if (ast_test_flag(&flags, OPTION_NAME)) {
01118 if (!ast_strlen_zero(opts[OPT_ARG_NAME])) {
01119 char *delimiter;
01120 if ((delimiter = strchr(opts[OPT_ARG_NAME], '@'))) {
01121 mailbox = opts[OPT_ARG_NAME];
01122 *delimiter++ = '\0';
01123 name_context = delimiter;
01124 } else {
01125 mailbox = opts[OPT_ARG_NAME];
01126 }
01127 }
01128 }
01129 } else {
01130 ast_clear_flag(&flags, AST_FLAGS_ALL);
01131 }
01132
01133 oldwf = chan->writeformat;
01134 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
01135 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01136 return -1;
01137 }
01138
01139 if (recbase) {
01140 char filename[PATH_MAX];
01141
01142 snprintf(filename, sizeof(filename), "%s/%s.%d.raw", ast_config_AST_MONITOR_DIR, recbase, (int) time(NULL));
01143 if ((fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, AST_FILE_MODE)) <= 0) {
01144 ast_log(LOG_WARNING, "Cannot open '%s' for recording\n", filename);
01145 fd = 0;
01146 }
01147 }
01148
01149 res = common_exec(chan, &flags, volfactor, fd, &user_options, mygroup, myenforced, args.spec, NULL, NULL, mailbox, name_context);
01150
01151 if (fd)
01152 close(fd);
01153
01154 if (oldwf && ast_set_write_format(chan, oldwf) < 0)
01155 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01156
01157 if (ast_test_flag(&flags, OPTION_EXITONHANGUP)) {
01158 ast_verb(3, "Stopped spying due to the spied-on channel hanging up.\n");
01159 }
01160
01161 return res;
01162 }
01163
01164 static int extenspy_exec(struct ast_channel *chan, const char *data)
01165 {
01166 char *ptr, *exten = NULL;
01167 char *mygroup = NULL;
01168 char *recbase = NULL;
01169 int fd = 0;
01170 struct ast_flags flags;
01171 struct spy_dtmf_options user_options = {
01172 .cycle = '*',
01173 .volume = '#',
01174 .exit = '\0',
01175 };
01176 int oldwf = 0;
01177 int volfactor = 0;
01178 int res;
01179 char *mailbox = NULL;
01180 char *name_context = NULL;
01181 AST_DECLARE_APP_ARGS(args,
01182 AST_APP_ARG(context);
01183 AST_APP_ARG(options);
01184 );
01185 char *parse = ast_strdupa(data);
01186
01187 AST_STANDARD_APP_ARGS(args, parse);
01188 if (!ast_strlen_zero(args.context) && (ptr = strchr(args.context, '@'))) {
01189 exten = args.context;
01190 *ptr++ = '\0';
01191 args.context = ptr;
01192 }
01193
01194 if (ast_strlen_zero(args.context))
01195 args.context = ast_strdupa(chan->context);
01196
01197 if (args.options) {
01198 char *opts[OPT_ARG_ARRAY_SIZE];
01199 char tmp;
01200
01201 ast_app_parse_options(spy_opts, &flags, opts, args.options);
01202 if (ast_test_flag(&flags, OPTION_GROUP))
01203 mygroup = opts[OPT_ARG_GROUP];
01204
01205 if (ast_test_flag(&flags, OPTION_RECORD) &&
01206 !(recbase = opts[OPT_ARG_RECORD]))
01207 recbase = "chanspy";
01208
01209 if (ast_test_flag(&flags, OPTION_DTMF_EXIT) && opts[OPT_ARG_EXIT]) {
01210 tmp = opts[OPT_ARG_EXIT][0];
01211 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01212 user_options.exit = tmp;
01213 } else {
01214 ast_log(LOG_NOTICE, "Argument for option 'x' must be a valid DTMF digit.\n");
01215 }
01216 }
01217
01218 if (ast_test_flag(&flags, OPTION_DTMF_CYCLE) && opts[OPT_ARG_CYCLE]) {
01219 tmp = opts[OPT_ARG_CYCLE][0];
01220 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01221 user_options.cycle = tmp;
01222 } else {
01223 ast_log(LOG_NOTICE, "Argument for option 'c' must be a valid DTMF digit.\n");
01224 }
01225 }
01226
01227 if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
01228 int vol;
01229
01230 if ((sscanf(opts[OPT_ARG_VOLUME], "%30d", &vol) != 1) || (vol > 4) || (vol < -4))
01231 ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
01232 else
01233 volfactor = vol;
01234 }
01235
01236 if (ast_test_flag(&flags, OPTION_PRIVATE))
01237 ast_set_flag(&flags, OPTION_WHISPER);
01238
01239 if (ast_test_flag(&flags, OPTION_NAME)) {
01240 if (!ast_strlen_zero(opts[OPT_ARG_NAME])) {
01241 char *delimiter;
01242 if ((delimiter = strchr(opts[OPT_ARG_NAME], '@'))) {
01243 mailbox = opts[OPT_ARG_NAME];
01244 *delimiter++ = '\0';
01245 name_context = delimiter;
01246 } else {
01247 mailbox = opts[OPT_ARG_NAME];
01248 }
01249 }
01250 }
01251
01252 } else {
01253
01254 ast_clear_flag(&flags, AST_FLAGS_ALL);
01255 }
01256
01257 oldwf = chan->writeformat;
01258 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
01259 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01260 return -1;
01261 }
01262
01263 if (recbase) {
01264 char filename[PATH_MAX];
01265
01266 snprintf(filename, sizeof(filename), "%s/%s.%d.raw", ast_config_AST_MONITOR_DIR, recbase, (int) time(NULL));
01267 if ((fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, AST_FILE_MODE)) <= 0) {
01268 ast_log(LOG_WARNING, "Cannot open '%s' for recording\n", filename);
01269 fd = 0;
01270 }
01271 }
01272
01273
01274 res = common_exec(chan, &flags, volfactor, fd, &user_options, mygroup, NULL, NULL, exten, args.context, mailbox, name_context);
01275
01276 if (fd)
01277 close(fd);
01278
01279 if (oldwf && ast_set_write_format(chan, oldwf) < 0)
01280 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01281
01282 return res;
01283 }
01284
01285 static int dahdiscan_exec(struct ast_channel *chan, const char *data)
01286 {
01287 const char *spec = "DAHDI";
01288 struct ast_flags flags;
01289 struct spy_dtmf_options user_options = {
01290 .cycle = '#',
01291 .volume = '\0',
01292 .exit = '*',
01293 };
01294 int oldwf = 0;
01295 int res;
01296 char *mygroup = NULL;
01297
01298
01299 ast_clear_flag(&flags, AST_FLAGS_ALL);
01300
01301 if (!ast_strlen_zero(data)) {
01302 mygroup = ast_strdupa(data);
01303 }
01304 ast_set_flag(&flags, OPTION_DTMF_EXIT);
01305 ast_set_flag(&flags, OPTION_DTMF_CYCLE);
01306 ast_set_flag(&flags, OPTION_DAHDI_SCAN);
01307
01308 oldwf = chan->writeformat;
01309 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
01310 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01311 return -1;
01312 }
01313
01314 res = common_exec(chan, &flags, 0, 0, &user_options, mygroup, NULL, spec, NULL, NULL, NULL, NULL);
01315
01316 if (oldwf && ast_set_write_format(chan, oldwf) < 0)
01317 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01318
01319 return res;
01320 }
01321
01322 static int unload_module(void)
01323 {
01324 int res = 0;
01325
01326 res |= ast_unregister_application(app_chan);
01327 res |= ast_unregister_application(app_ext);
01328 res |= ast_unregister_application(app_dahdiscan);
01329
01330 return res;
01331 }
01332
01333 static int load_module(void)
01334 {
01335 int res = 0;
01336
01337 res |= ast_register_application_xml(app_chan, chanspy_exec);
01338 res |= ast_register_application_xml(app_ext, extenspy_exec);
01339 res |= ast_register_application_xml(app_dahdiscan, dahdiscan_exec);
01340
01341 return res;
01342 }
01343
01344 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Listen to the audio of an active channel");