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00036 #include "asterisk.h"
00037
00038 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 352955 $")
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
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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 return 0;
00531 }
00532
00533 ast_channel_lock(spyee_autochan->chan);
00534 name = ast_strdupa(spyee_autochan->chan->name);
00535 ast_channel_unlock(spyee_autochan->chan);
00536
00537 ast_verb(2, "Spying on channel %s\n", name);
00538 ast_manager_event_multichan(EVENT_FLAG_CALL, "ChanSpyStart", 2, chans,
00539 "SpyerChannel: %s\r\n"
00540 "SpyeeChannel: %s\r\n",
00541 spyer_name, name);
00542
00543 memset(&csth, 0, sizeof(csth));
00544 ast_copy_flags(&csth.flags, flags, AST_FLAGS_ALL);
00545
00546
00547
00548
00549 ast_audiohook_init(&csth.spy_audiohook, AST_AUDIOHOOK_TYPE_SPY, "ChanSpy");
00550
00551 if (start_spying(spyee_autochan, spyer_name, &csth.spy_audiohook)) {
00552 ast_audiohook_destroy(&csth.spy_audiohook);
00553 return 0;
00554 }
00555
00556 if (ast_test_flag(flags, OPTION_WHISPER | OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00557
00558
00559
00560 ast_audiohook_init(&csth.whisper_audiohook, AST_AUDIOHOOK_TYPE_WHISPER, "ChanSpy");
00561
00562 if (start_spying(spyee_autochan, spyer_name, &csth.whisper_audiohook)) {
00563 ast_log(LOG_WARNING, "Unable to attach whisper audiohook to spyee %s. Whisper mode disabled!\n", name);
00564 }
00565 }
00566
00567 if (ast_test_flag(flags, OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00568
00569
00570
00571 ast_audiohook_init(&csth.bridge_whisper_audiohook, AST_AUDIOHOOK_TYPE_WHISPER, "Chanspy");
00572
00573 if ((spyee_bridge_autochan = ast_autochan_setup(ast_bridged_channel(spyee_autochan->chan)))) {
00574 ast_channel_lock(spyee_bridge_autochan->chan);
00575 if (start_spying(spyee_bridge_autochan, spyer_name, &csth.bridge_whisper_audiohook)) {
00576 ast_log(LOG_WARNING, "Unable to attach barge audiohook on spyee %s. Barge mode disabled!\n", name);
00577 }
00578 ast_channel_unlock(spyee_bridge_autochan->chan);
00579 }
00580 }
00581
00582 ast_channel_lock(chan);
00583 ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
00584 ast_channel_unlock(chan);
00585
00586 csth.volfactor = *volfactor;
00587
00588 if (csth.volfactor) {
00589 csth.spy_audiohook.options.read_volume = csth.volfactor;
00590 csth.spy_audiohook.options.write_volume = csth.volfactor;
00591 }
00592
00593 csth.fd = fd;
00594
00595 if (ast_test_flag(flags, OPTION_PRIVATE))
00596 silgen = ast_channel_start_silence_generator(chan);
00597 else
00598 ast_activate_generator(chan, &spygen, &csth);
00599
00600
00601
00602
00603
00604
00605
00606
00607
00608
00609
00610
00611
00612
00613
00614 while ((res = ast_waitfor(chan, -1) > -1) && csth.spy_audiohook.status == AST_AUDIOHOOK_STATUS_RUNNING) {
00615 if (!(f = ast_read(chan)) || ast_check_hangup(chan)) {
00616 running = -1;
00617 break;
00618 }
00619
00620 if (ast_test_flag(flags, OPTION_BARGE) && f->frametype == AST_FRAME_VOICE) {
00621 ast_audiohook_lock(&csth.whisper_audiohook);
00622 ast_audiohook_lock(&csth.bridge_whisper_audiohook);
00623 ast_audiohook_write_frame(&csth.whisper_audiohook, AST_AUDIOHOOK_DIRECTION_WRITE, f);
00624 ast_audiohook_write_frame(&csth.bridge_whisper_audiohook, AST_AUDIOHOOK_DIRECTION_WRITE, f);
00625 ast_audiohook_unlock(&csth.whisper_audiohook);
00626 ast_audiohook_unlock(&csth.bridge_whisper_audiohook);
00627 ast_frfree(f);
00628 continue;
00629 } else if (ast_test_flag(flags, OPTION_WHISPER) && f->frametype == AST_FRAME_VOICE) {
00630 ast_audiohook_lock(&csth.whisper_audiohook);
00631 ast_audiohook_write_frame(&csth.whisper_audiohook, AST_AUDIOHOOK_DIRECTION_WRITE, f);
00632 ast_audiohook_unlock(&csth.whisper_audiohook);
00633 ast_frfree(f);
00634 continue;
00635 }
00636
00637 res = (f->frametype == AST_FRAME_DTMF) ? f->subclass.integer : 0;
00638 ast_frfree(f);
00639 if (!res)
00640 continue;
00641
00642 if (x == sizeof(inp))
00643 x = 0;
00644
00645 if (res < 0) {
00646 running = -1;
00647 break;
00648 }
00649
00650 if (ast_test_flag(flags, OPTION_EXIT)) {
00651 char tmp[2];
00652 tmp[0] = res;
00653 tmp[1] = '\0';
00654 if (!ast_goto_if_exists(chan, exitcontext, tmp, 1)) {
00655 ast_debug(1, "Got DTMF %c, goto context %s\n", tmp[0], exitcontext);
00656 pbx_builtin_setvar_helper(chan, "SPY_CHANNEL", name);
00657 running = -2;
00658 break;
00659 } else {
00660 ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
00661 }
00662 } else if (res >= '0' && res <= '9') {
00663 if (ast_test_flag(flags, OPTION_DTMF_SWITCH_MODES)) {
00664 change_spy_mode(res, flags);
00665 } else {
00666 inp[x++] = res;
00667 }
00668 }
00669
00670 if (res == user_options->cycle) {
00671 running = 0;
00672 break;
00673 } else if (res == user_options->exit) {
00674 running = -2;
00675 break;
00676 } else if (res == user_options->volume) {
00677 if (!ast_strlen_zero(inp)) {
00678 running = atoi(inp);
00679 break;
00680 }
00681
00682 (*volfactor)++;
00683 if (*volfactor > 4)
00684 *volfactor = -4;
00685 ast_verb(3, "Setting spy volume on %s to %d\n", chan->name, *volfactor);
00686
00687 csth.volfactor = *volfactor;
00688 csth.spy_audiohook.options.read_volume = csth.volfactor;
00689 csth.spy_audiohook.options.write_volume = csth.volfactor;
00690 }
00691 }
00692
00693 if (ast_test_flag(flags, OPTION_PRIVATE))
00694 ast_channel_stop_silence_generator(chan, silgen);
00695 else
00696 ast_deactivate_generator(chan);
00697
00698 ast_channel_lock(chan);
00699 ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
00700 ast_channel_unlock(chan);
00701
00702 if (ast_test_flag(flags, OPTION_WHISPER | OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00703 ast_audiohook_lock(&csth.whisper_audiohook);
00704 ast_audiohook_detach(&csth.whisper_audiohook);
00705 ast_audiohook_unlock(&csth.whisper_audiohook);
00706 ast_audiohook_destroy(&csth.whisper_audiohook);
00707 }
00708
00709 if (ast_test_flag(flags, OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
00710 ast_audiohook_lock(&csth.bridge_whisper_audiohook);
00711 ast_audiohook_detach(&csth.bridge_whisper_audiohook);
00712 ast_audiohook_unlock(&csth.bridge_whisper_audiohook);
00713 ast_audiohook_destroy(&csth.bridge_whisper_audiohook);
00714 }
00715
00716 ast_audiohook_lock(&csth.spy_audiohook);
00717 ast_audiohook_detach(&csth.spy_audiohook);
00718 ast_audiohook_unlock(&csth.spy_audiohook);
00719 ast_audiohook_destroy(&csth.spy_audiohook);
00720
00721 if (spyee_bridge_autochan) {
00722 ast_autochan_destroy(spyee_bridge_autochan);
00723 }
00724
00725 ast_verb(2, "Done Spying on channel %s\n", name);
00726 ast_manager_event(chan, EVENT_FLAG_CALL, "ChanSpyStop", "SpyeeChannel: %s\r\n", name);
00727
00728 return running;
00729 }
00730
00731 static struct ast_autochan *next_channel(struct ast_channel_iterator *iter,
00732 struct ast_autochan *autochan, struct ast_channel *chan)
00733 {
00734 struct ast_channel *next;
00735 struct ast_autochan *autochan_store;
00736 const size_t pseudo_len = strlen("DAHDI/pseudo");
00737
00738 if (!iter) {
00739 return NULL;
00740 }
00741
00742 redo:
00743 if (!(next = ast_channel_iterator_next(iter))) {
00744 return NULL;
00745 }
00746
00747 if (!strncmp(next->name, "DAHDI/pseudo", pseudo_len)) {
00748 goto redo;
00749 } else if (next == chan) {
00750 goto redo;
00751 }
00752
00753 autochan_store = ast_autochan_setup(next);
00754 ast_channel_unref(next);
00755
00756 return autochan_store;
00757 }
00758
00759 static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
00760 int volfactor, const int fd, struct spy_dtmf_options *user_options,
00761 const char *mygroup, const char *myenforced, const char *spec, const char *exten,
00762 const char *context, const char *mailbox, const char *name_context)
00763 {
00764 char nameprefix[AST_NAME_STRLEN];
00765 char peer_name[AST_NAME_STRLEN + 5];
00766 char exitcontext[AST_MAX_CONTEXT] = "";
00767 signed char zero_volume = 0;
00768 int waitms;
00769 int res;
00770 char *ptr;
00771 int num;
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 char *s;
00862
00863 if (autochan->chan == prev) {
00864 ast_autochan_destroy(autochan);
00865 break;
00866 }
00867
00868 if (ast_check_hangup(chan)) {
00869 ast_autochan_destroy(autochan);
00870 break;
00871 }
00872
00873 if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(autochan->chan)) {
00874 continue;
00875 }
00876
00877 if (ast_check_hangup(autochan->chan) || ast_test_flag(autochan->chan, AST_FLAG_SPYING)) {
00878 continue;
00879 }
00880
00881 if (mygroup) {
00882 int num_groups = 0;
00883 int num_mygroups = 0;
00884 char dup_group[512];
00885 char dup_mygroup[512];
00886 char *groups[NUM_SPYGROUPS];
00887 char *mygroups[NUM_SPYGROUPS];
00888 const char *group = NULL;
00889 int x;
00890 int y;
00891 ast_copy_string(dup_mygroup, mygroup, sizeof(dup_mygroup));
00892 num_mygroups = ast_app_separate_args(dup_mygroup, ':', mygroups,
00893 ARRAY_LEN(mygroups));
00894
00895
00896
00897 if (ast_test_flag(flags, OPTION_DAHDI_SCAN)) {
00898 group = pbx_builtin_getvar_helper(autochan->chan, "GROUP");
00899 } else {
00900 group = pbx_builtin_getvar_helper(autochan->chan, "SPYGROUP");
00901 }
00902
00903 if (!ast_strlen_zero(group)) {
00904 ast_copy_string(dup_group, group, sizeof(dup_group));
00905 num_groups = ast_app_separate_args(dup_group, ':', groups,
00906 ARRAY_LEN(groups));
00907 }
00908
00909 for (y = 0; y < num_mygroups; y++) {
00910 for (x = 0; x < num_groups; x++) {
00911 if (!strcmp(mygroups[y], groups[x])) {
00912 igrp = 1;
00913 break;
00914 }
00915 }
00916 }
00917 }
00918
00919 if (!igrp) {
00920 continue;
00921 }
00922 if (myenforced) {
00923 char ext[AST_CHANNEL_NAME + 3];
00924 char buffer[512];
00925 char *end;
00926
00927 snprintf(buffer, sizeof(buffer) - 1, ":%s:", myenforced);
00928
00929 ast_copy_string(ext + 1, autochan->chan->name, sizeof(ext) - 1);
00930 if ((end = strchr(ext, '-'))) {
00931 *end++ = ':';
00932 *end = '\0';
00933 }
00934
00935 ext[0] = ':';
00936
00937 if (strcasestr(buffer, ext)) {
00938 ienf = 1;
00939 }
00940 }
00941
00942 if (!ienf) {
00943 continue;
00944 }
00945
00946 strcpy(peer_name, "spy-");
00947 strncat(peer_name, autochan->chan->name, AST_NAME_STRLEN - 4 - 1);
00948 ptr = strchr(peer_name, '/');
00949 *ptr++ = '\0';
00950 ptr = strsep(&ptr, "-");
00951
00952 for (s = peer_name; s < ptr; s++)
00953 *s = tolower(*s);
00954
00955 if (!ast_test_flag(flags, OPTION_QUIET)) {
00956 if (ast_test_flag(flags, OPTION_NAME)) {
00957 const char *local_context = S_OR(name_context, "default");
00958 const char *local_mailbox = S_OR(mailbox, ptr);
00959 res = ast_app_sayname(chan, local_mailbox, local_context);
00960 }
00961 if (!ast_test_flag(flags, OPTION_NAME) || res < 0) {
00962 if (!ast_test_flag(flags, OPTION_NOTECH)) {
00963 if (ast_fileexists(peer_name, NULL, NULL) > 0) {
00964 res = ast_streamfile(chan, peer_name, chan->language);
00965 if (!res) {
00966 res = ast_waitstream(chan, "");
00967 }
00968 if (res) {
00969 ast_autochan_destroy(autochan);
00970 break;
00971 }
00972 } else {
00973 res = ast_say_character_str(chan, peer_name, "", chan->language);
00974 }
00975 }
00976 if ((num = atoi(ptr)))
00977 ast_say_digits(chan, atoi(ptr), "", chan->language);
00978 }
00979 }
00980
00981 res = channel_spy(chan, autochan, &volfactor, fd, user_options, flags, exitcontext);
00982 num_spyed_upon++;
00983
00984 if (res == -1) {
00985 ast_autochan_destroy(autochan);
00986 iter = ast_channel_iterator_destroy(iter);
00987 goto exit;
00988 } else if (res == -2) {
00989 res = 0;
00990 ast_autochan_destroy(autochan);
00991 iter = ast_channel_iterator_destroy(iter);
00992 goto exit;
00993 } else if (res > 1 && spec) {
00994 struct ast_channel *next;
00995
00996 snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
00997
00998 if ((next = ast_channel_get_by_name_prefix(nameprefix, strlen(nameprefix)))) {
00999 next_autochan = ast_autochan_setup(next);
01000 next = ast_channel_unref(next);
01001 } else {
01002
01003 if (!ast_check_hangup(autochan->chan)) {
01004 next_autochan = ast_autochan_setup(autochan->chan);
01005 } else {
01006
01007 next_autochan = NULL;
01008 }
01009 }
01010 } else if (res == 0 && ast_test_flag(flags, OPTION_EXITONHANGUP)) {
01011 iter = ast_channel_iterator_destroy(iter);
01012 goto exit;
01013 }
01014 }
01015
01016 iter = ast_channel_iterator_destroy(iter);
01017
01018 if (res == -1 || ast_check_hangup(chan))
01019 break;
01020 if (ast_test_flag(flags, OPTION_STOP) && !next_autochan) {
01021 break;
01022 }
01023 }
01024 exit:
01025
01026 ast_clear_flag(chan, AST_FLAG_SPYING);
01027
01028 ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
01029
01030 return res;
01031 }
01032
01033 static int chanspy_exec(struct ast_channel *chan, const char *data)
01034 {
01035 char *myenforced = NULL;
01036 char *mygroup = NULL;
01037 char *recbase = NULL;
01038 int fd = 0;
01039 struct ast_flags flags;
01040 struct spy_dtmf_options user_options = {
01041 .cycle = '*',
01042 .volume = '#',
01043 .exit = '\0',
01044 };
01045 int oldwf = 0;
01046 int volfactor = 0;
01047 int res;
01048 char *mailbox = NULL;
01049 char *name_context = NULL;
01050 AST_DECLARE_APP_ARGS(args,
01051 AST_APP_ARG(spec);
01052 AST_APP_ARG(options);
01053 );
01054 char *opts[OPT_ARG_ARRAY_SIZE];
01055 char *parse = ast_strdupa(data);
01056
01057 AST_STANDARD_APP_ARGS(args, parse);
01058
01059 if (args.spec && !strcmp(args.spec, "all"))
01060 args.spec = NULL;
01061
01062 if (args.options) {
01063 char tmp;
01064 ast_app_parse_options(spy_opts, &flags, opts, args.options);
01065 if (ast_test_flag(&flags, OPTION_GROUP))
01066 mygroup = opts[OPT_ARG_GROUP];
01067
01068 if (ast_test_flag(&flags, OPTION_RECORD) &&
01069 !(recbase = opts[OPT_ARG_RECORD]))
01070 recbase = "chanspy";
01071
01072 if (ast_test_flag(&flags, OPTION_DTMF_EXIT) && opts[OPT_ARG_EXIT]) {
01073 tmp = opts[OPT_ARG_EXIT][0];
01074 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01075 user_options.exit = tmp;
01076 } else {
01077 ast_log(LOG_NOTICE, "Argument for option 'x' must be a valid DTMF digit.");
01078 }
01079 }
01080
01081 if (ast_test_flag(&flags, OPTION_DTMF_CYCLE) && opts[OPT_ARG_CYCLE]) {
01082 tmp = opts[OPT_ARG_CYCLE][0];
01083 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01084 user_options.cycle = tmp;
01085 } else {
01086 ast_log(LOG_NOTICE, "Argument for option 'c' must be a valid DTMF digit.");
01087 }
01088 }
01089
01090 if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
01091 int vol;
01092
01093 if ((sscanf(opts[OPT_ARG_VOLUME], "%30d", &vol) != 1) || (vol > 4) || (vol < -4))
01094 ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
01095 else
01096 volfactor = vol;
01097 }
01098
01099 if (ast_test_flag(&flags, OPTION_PRIVATE))
01100 ast_set_flag(&flags, OPTION_WHISPER);
01101
01102 if (ast_test_flag(&flags, OPTION_ENFORCED))
01103 myenforced = opts[OPT_ARG_ENFORCED];
01104
01105 if (ast_test_flag(&flags, OPTION_NAME)) {
01106 if (!ast_strlen_zero(opts[OPT_ARG_NAME])) {
01107 char *delimiter;
01108 if ((delimiter = strchr(opts[OPT_ARG_NAME], '@'))) {
01109 mailbox = opts[OPT_ARG_NAME];
01110 *delimiter++ = '\0';
01111 name_context = delimiter;
01112 } else {
01113 mailbox = opts[OPT_ARG_NAME];
01114 }
01115 }
01116 }
01117 } else {
01118 ast_clear_flag(&flags, AST_FLAGS_ALL);
01119 }
01120
01121 oldwf = chan->writeformat;
01122 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
01123 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01124 return -1;
01125 }
01126
01127 if (recbase) {
01128 char filename[PATH_MAX];
01129
01130 snprintf(filename, sizeof(filename), "%s/%s.%d.raw", ast_config_AST_MONITOR_DIR, recbase, (int) time(NULL));
01131 if ((fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, AST_FILE_MODE)) <= 0) {
01132 ast_log(LOG_WARNING, "Cannot open '%s' for recording\n", filename);
01133 fd = 0;
01134 }
01135 }
01136
01137 res = common_exec(chan, &flags, volfactor, fd, &user_options, mygroup, myenforced, args.spec, NULL, NULL, mailbox, name_context);
01138
01139 if (fd)
01140 close(fd);
01141
01142 if (oldwf && ast_set_write_format(chan, oldwf) < 0)
01143 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01144
01145 if (ast_test_flag(&flags, OPTION_EXITONHANGUP)) {
01146 ast_verb(3, "Stopped spying due to the spied-on channel hanging up.\n");
01147 }
01148
01149 return res;
01150 }
01151
01152 static int extenspy_exec(struct ast_channel *chan, const char *data)
01153 {
01154 char *ptr, *exten = NULL;
01155 char *mygroup = NULL;
01156 char *recbase = NULL;
01157 int fd = 0;
01158 struct ast_flags flags;
01159 struct spy_dtmf_options user_options = {
01160 .cycle = '*',
01161 .volume = '#',
01162 .exit = '\0',
01163 };
01164 int oldwf = 0;
01165 int volfactor = 0;
01166 int res;
01167 char *mailbox = NULL;
01168 char *name_context = NULL;
01169 AST_DECLARE_APP_ARGS(args,
01170 AST_APP_ARG(context);
01171 AST_APP_ARG(options);
01172 );
01173 char *parse = ast_strdupa(data);
01174
01175 AST_STANDARD_APP_ARGS(args, parse);
01176 if (!ast_strlen_zero(args.context) && (ptr = strchr(args.context, '@'))) {
01177 exten = args.context;
01178 *ptr++ = '\0';
01179 args.context = ptr;
01180 }
01181
01182 if (ast_strlen_zero(args.context))
01183 args.context = ast_strdupa(chan->context);
01184
01185 if (args.options) {
01186 char *opts[OPT_ARG_ARRAY_SIZE];
01187 char tmp;
01188
01189 ast_app_parse_options(spy_opts, &flags, opts, args.options);
01190 if (ast_test_flag(&flags, OPTION_GROUP))
01191 mygroup = opts[OPT_ARG_GROUP];
01192
01193 if (ast_test_flag(&flags, OPTION_RECORD) &&
01194 !(recbase = opts[OPT_ARG_RECORD]))
01195 recbase = "chanspy";
01196
01197 if (ast_test_flag(&flags, OPTION_DTMF_EXIT) && opts[OPT_ARG_EXIT]) {
01198 tmp = opts[OPT_ARG_EXIT][0];
01199 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01200 user_options.exit = tmp;
01201 } else {
01202 ast_log(LOG_NOTICE, "Argument for option 'x' must be a valid DTMF digit.");
01203 }
01204 }
01205
01206 if (ast_test_flag(&flags, OPTION_DTMF_CYCLE) && opts[OPT_ARG_CYCLE]) {
01207 tmp = opts[OPT_ARG_CYCLE][0];
01208 if (strchr("0123456789*#", tmp) && tmp != '\0') {
01209 user_options.cycle = tmp;
01210 } else {
01211 ast_log(LOG_NOTICE, "Argument for option 'c' must be a valid DTMF digit.");
01212 }
01213 }
01214
01215 if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
01216 int vol;
01217
01218 if ((sscanf(opts[OPT_ARG_VOLUME], "%30d", &vol) != 1) || (vol > 4) || (vol < -4))
01219 ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
01220 else
01221 volfactor = vol;
01222 }
01223
01224 if (ast_test_flag(&flags, OPTION_PRIVATE))
01225 ast_set_flag(&flags, OPTION_WHISPER);
01226
01227 if (ast_test_flag(&flags, OPTION_NAME)) {
01228 if (!ast_strlen_zero(opts[OPT_ARG_NAME])) {
01229 char *delimiter;
01230 if ((delimiter = strchr(opts[OPT_ARG_NAME], '@'))) {
01231 mailbox = opts[OPT_ARG_NAME];
01232 *delimiter++ = '\0';
01233 name_context = delimiter;
01234 } else {
01235 mailbox = opts[OPT_ARG_NAME];
01236 }
01237 }
01238 }
01239
01240 } else {
01241 ast_clear_flag(&flags, AST_FLAGS_ALL);
01242 }
01243
01244 oldwf = chan->writeformat;
01245 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
01246 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01247 return -1;
01248 }
01249
01250 if (recbase) {
01251 char filename[PATH_MAX];
01252
01253 snprintf(filename, sizeof(filename), "%s/%s.%d.raw", ast_config_AST_MONITOR_DIR, recbase, (int) time(NULL));
01254 if ((fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, AST_FILE_MODE)) <= 0) {
01255 ast_log(LOG_WARNING, "Cannot open '%s' for recording\n", filename);
01256 fd = 0;
01257 }
01258 }
01259
01260
01261 res = common_exec(chan, &flags, volfactor, fd, &user_options, mygroup, NULL, NULL, exten, args.context, mailbox, name_context);
01262
01263 if (fd)
01264 close(fd);
01265
01266 if (oldwf && ast_set_write_format(chan, oldwf) < 0)
01267 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01268
01269 return res;
01270 }
01271
01272 static int dahdiscan_exec(struct ast_channel *chan, const char *data)
01273 {
01274 const char *spec = "DAHDI";
01275 struct ast_flags flags;
01276 struct spy_dtmf_options user_options = {
01277 .cycle = '#',
01278 .volume = '\0',
01279 .exit = '*',
01280 };
01281 int oldwf = 0;
01282 int res;
01283 char *mygroup = NULL;
01284
01285 ast_clear_flag(&flags, AST_FLAGS_ALL);
01286
01287 if (!ast_strlen_zero(data)) {
01288 mygroup = ast_strdupa(data);
01289 }
01290 ast_set_flag(&flags, OPTION_DTMF_EXIT);
01291 ast_set_flag(&flags, OPTION_DTMF_CYCLE);
01292 ast_set_flag(&flags, OPTION_DAHDI_SCAN);
01293
01294 oldwf = chan->writeformat;
01295 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
01296 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01297 return -1;
01298 }
01299
01300 res = common_exec(chan, &flags, 0, 0, &user_options, mygroup, NULL, spec, NULL, NULL, NULL, NULL);
01301
01302 if (oldwf && ast_set_write_format(chan, oldwf) < 0)
01303 ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
01304
01305 return res;
01306 }
01307
01308 static int unload_module(void)
01309 {
01310 int res = 0;
01311
01312 res |= ast_unregister_application(app_chan);
01313 res |= ast_unregister_application(app_ext);
01314 res |= ast_unregister_application(app_dahdiscan);
01315
01316 return res;
01317 }
01318
01319 static int load_module(void)
01320 {
01321 int res = 0;
01322
01323 res |= ast_register_application_xml(app_chan, chanspy_exec);
01324 res |= ast_register_application_xml(app_ext, extenspy_exec);
01325 res |= ast_register_application_xml(app_dahdiscan, dahdiscan_exec);
01326
01327 return res;
01328 }
01329
01330 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Listen to the audio of an active channel");