Tue Jul 14 23:10:39 2009

Asterisk developer's documentation


Module: Dial plan applications

Applications support the dialplan. They register dynamically with ast_register_application() and unregister with ast_unregister_application(). More...


Files

file  app_adsiprog.c
 Program Asterisk ADSI Scripts into phone.
file  app_alarmreceiver.c
 Central Station Alarm receiver for Ademco Contact ID.
file  app_authenticate.c
 Execute arbitrary authenticate commands.
file  app_cdr.c
 Applications connected with CDR engine.
file  app_chanisavail.c
 Check if Channel is Available.
file  app_channelredirect.c
 ChannelRedirect application.
file  app_chanspy.c
 ChanSpy: Listen in on any channel.
file  app_controlplayback.c
 Trivial application to control playback of a sound file.
file  app_dahdibarge.c
 Zap Barge support.
file  app_dahdiras.c
 Execute an ISDN RAS.
file  app_dahdiscan.c
 Zap Scanner.
file  app_db.c
 Database access functions.
file  app_dial.c
 dial() & retrydial() - Trivial application to dial a channel and send an URL on answer
file  app_dictate.c
 Virtual Dictation Machine Application For Asterisk.
file  app_directed_pickup.c
 Directed Call Pickup Support.
file  app_directory.c
 Provide a directory of extensions.
file  app_disa.c
 DISA -- Direct Inward System Access Application.
file  app_dumpchan.c
 Application to dump channel variables.
file  app_echo.c
 Echo application -- play back what you hear to evaluate latency.
file  app_exec.c
 Exec application.
file  app_externalivr.c
 External IVR application interface.
file  app_festival.c
 Connect to festival.
file  app_flash.c
 App to flash a DAHDI trunk.
file  app_followme.c
 Find-Me Follow-Me application.
file  app_forkcdr.c
 Fork CDR application.
file  app_getcpeid.c
 Get ADSI CPE ID.
file  app_hasnewvoicemail.c
 HasVoicemail application.
file  app_ices.c
 Stream to an icecast server via ICES (see contrib/asterisk-ices.xml).
file  app_image.c
 App to transmit an image.
file  app_ivrdemo.c
 IVR Demo application.
file  app_lookupblacklist.c
 App to lookup the callerid number, and see if it is blacklisted.
file  app_lookupcidname.c
 App to set callerid name from database, based on directory number.
file  app_macro.c
 Dial plan macro Implementation.
file  app_meetme.c
 Meet me conference bridge and Shared Line Appearances.
file  app_milliwatt.c
 Digital Milliwatt Test.
file  app_mixmonitor.c
 MixMonitor() - Record a call and mix the audio during the recording.
file  app_morsecode.c
 Morsecode application.
file  app_mp3.c
 Silly application to play an MP3 file -- uses mpg123.
file  app_nbscat.c
 Silly application to play an NBScat file -- uses nbscat8k.
file  app_osplookup.c
 Open Settlement Protocol (OSP) Applications.
file  app_page.c
 page() - Paging application
file  app_parkandannounce.c
 ParkAndAnnounce application for Asterisk.
file  app_playback.c
 Trivial application to playback a sound file.
file  app_privacy.c
 Block all calls without Caller*ID, require phone # to be entered.
file  app_queue.c
 True call queues with optional send URL on answer.
file  app_random.c
 Random application.
file  app_read.c
 Trivial application to read a variable.
file  app_readfile.c
 ReadFile application -- Reads in a File for you.
file  app_realtime.c
 RealTime App.
file  app_record.c
 Trivial application to record a sound file.
file  app_sayunixtime.c
 SayUnixTime application.
file  app_senddtmf.c
 App to send DTMF digits.
file  app_sendtext.c
 App to transmit a text message.
file  app_setcallerid.c
 App to set callerid.
file  app_setcdruserfield.c
 Applictions connected with CDR engine.
file  app_settransfercapability.c
 App to set the ISDN Transfer Capability.
file  app_skel.c
 Skeleton application.
file  app_sms.c
 SMS application - ETSI ES 201 912 protocol 1 implimentation.
file  app_softhangup.c
 SoftHangup application.
file  app_speech_utils.c
 Speech Recognition Utility Applications.
file  app_stack.c
 Stack applications Gosub, Return, etc.
file  app_system.c
 Execute arbitrary system commands.
file  app_talkdetect.c
 Playback a file with audio detect.
file  app_test.c
 Applications to test connection and produce report in text file.
file  app_transfer.c
 Transfer a caller.
file  app_url.c
 App to transmit a URL.
file  app_userevent.c
 UserEvent application -- send manager event.
file  app_verbose.c
 Verbose logging application.
file  app_voicemail.c
 Comedian Mail - Voicemail System.
file  app_waitforring.c
 Wait for Ring Application.
file  app_waitforsilence.c
 Wait for Silence
  • Waits for up to 'x' milliseconds of silence, 'y' times
  • WaitForSilence(500,2) will wait for 1/2 second of silence, twice
  • WaitForSilence(1000,1) will wait for 1 second of silence, once
  • WaitForSilence(300,3,10) will wait for 300ms of silence, 3 times, and return after 10sec
    .

file  app_while.c
 While Loop Implementation.
file  app_zapateller.c
 Playback the special information tone to get rid of telemarketers.

Functions

static int iax2_prov_app (struct ast_channel *chan, void *data)
static int pbx_builtin_answer (struct ast_channel *, void *)
static int pbx_builtin_background (struct ast_channel *, void *)
static int pbx_builtin_busy (struct ast_channel *, void *)
static int pbx_builtin_congestion (struct ast_channel *, void *)
static int pbx_builtin_execiftime (struct ast_channel *, void *)
static int pbx_builtin_goto (struct ast_channel *, void *)
static int pbx_builtin_gotoiftime (struct ast_channel *, void *)
static int pbx_builtin_hangup (struct ast_channel *, void *)
static int pbx_builtin_progress (struct ast_channel *, void *)
static int pbx_builtin_resetcdr (struct ast_channel *, void *)
static int pbx_builtin_ringing (struct ast_channel *, void *)
static int pbx_builtin_setamaflags (struct ast_channel *, void *)
static int pbx_builtin_wait (struct ast_channel *, void *)
static int pbx_builtin_waitexten (struct ast_channel *, void *)

Detailed Description

Applications support the dialplan. They register dynamically with ast_register_application() and unregister with ast_unregister_application().

Asterisk Dial Plan Applications

See also

Function Documentation

static int iax2_prov_app ( struct ast_channel chan,
void *  data 
) [static]

iax2provision

Definition at line 9132 of file chan_iax2.c.

References ast_inet_ntoa(), ast_log(), ast_strdupa, ast_strlen_zero(), ast_verbose(), iax2_provision(), iax2_tech, iaxs, LOG_NOTICE, option_verbose, PTR_TO_CALLNO, create_addr_info::sockfd, ast_channel::tech, ast_channel::tech_pvt, and VERBOSE_PREFIX_3.

Referenced by load_module().

09133 {
09134    int res;
09135    char *sdata;
09136    char *opts;
09137    int force =0;
09138    unsigned short callno = PTR_TO_CALLNO(chan->tech_pvt);
09139    if (ast_strlen_zero(data))
09140       data = "default";
09141    sdata = ast_strdupa(data);
09142    opts = strchr(sdata, '|');
09143    if (opts)
09144       *opts='\0';
09145 
09146    if (chan->tech != &iax2_tech) {
09147       ast_log(LOG_NOTICE, "Can't provision a non-IAX device!\n");
09148       return -1;
09149    } 
09150    if (!callno || !iaxs[callno] || !iaxs[callno]->addr.sin_addr.s_addr) {
09151       ast_log(LOG_NOTICE, "Can't provision something with no IP?\n");
09152       return -1;
09153    }
09154    res = iax2_provision(&iaxs[callno]->addr, iaxs[callno]->sockfd, NULL, sdata, force);
09155    if (option_verbose > 2)
09156       ast_verbose(VERBOSE_PREFIX_3 "Provisioned IAXY at '%s' with '%s'= %d\n", 
09157       ast_inet_ntoa(iaxs[callno]->addr.sin_addr),
09158       sdata, res);
09159    return res;
09160 }

static int pbx_builtin_answer ( struct ast_channel ,
void *   
) [static]

Definition at line 5470 of file pbx.c.

References ast_channel::_state, ast_answer(), ast_safe_sleep(), AST_STATE_UP, and ast_strlen_zero().

05471 {
05472    int delay = 0;
05473    int res;
05474 
05475    if (chan->_state == AST_STATE_UP)
05476       delay = 0;
05477    else if (!ast_strlen_zero(data))
05478       delay = atoi(data);
05479 
05480    res = ast_answer(chan);
05481    if (res)
05482       return res;
05483 
05484    if (delay)
05485       res = ast_safe_sleep(chan, delay);
05486 
05487    return res;
05488 }

static int pbx_builtin_background ( struct ast_channel ,
void *   
) [static]

Definition at line 5703 of file pbx.c.

References ast_channel::_state, ast_answer(), AST_APP_ARG, ast_app_parse_options(), ast_copy_string(), AST_DECLARE_APP_ARGS, AST_DIGIT_ANY, ast_log(), ast_matchmore_extension(), AST_STANDARD_APP_ARGS, AST_STATE_UP, ast_stopstream(), ast_strdupa, ast_streamfile(), ast_strlen_zero(), ast_test_flag, ast_waitstream(), ast_waitstream_exten(), BACKGROUND_MATCHEXTEN, BACKGROUND_NOANSWER, background_opts, BACKGROUND_PLAYBACK, BACKGROUND_SKIP, ast_channel::cid, ast_callerid::cid_num, ast_channel::context, ast_channel::exten, ast_flags::flags, ast_channel::language, LOG_WARNING, ast_channel::name, parse(), and ast_channel::priority.

05704 {
05705    int res = 0;
05706    struct ast_flags flags = {0};
05707    char *parse, exten[2] = "";
05708    AST_DECLARE_APP_ARGS(args,
05709       AST_APP_ARG(filename);
05710       AST_APP_ARG(options);
05711       AST_APP_ARG(lang);
05712       AST_APP_ARG(context);
05713    );
05714 
05715    if (ast_strlen_zero(data)) {
05716       ast_log(LOG_WARNING, "Background requires an argument (filename)\n");
05717       return -1;
05718    }
05719 
05720    parse = ast_strdupa(data);
05721 
05722    AST_STANDARD_APP_ARGS(args, parse);
05723 
05724    if (ast_strlen_zero(args.lang))
05725       args.lang = (char *)chan->language; /* XXX this is const */
05726 
05727    if (ast_strlen_zero(args.context))
05728       args.context = chan->context;
05729 
05730    if (args.options) {
05731       if (!strcasecmp(args.options, "skip"))
05732          flags.flags = BACKGROUND_SKIP;
05733       else if (!strcasecmp(args.options, "noanswer"))
05734          flags.flags = BACKGROUND_NOANSWER;
05735       else
05736          ast_app_parse_options(background_opts, &flags, NULL, args.options);
05737    }
05738 
05739    /* Answer if need be */
05740    if (chan->_state != AST_STATE_UP) {
05741       if (ast_test_flag(&flags, BACKGROUND_SKIP)) {
05742          return 0;
05743       } else if (!ast_test_flag(&flags, BACKGROUND_NOANSWER)) {
05744          res = ast_answer(chan);
05745       }
05746    }
05747 
05748    if (!res) {
05749       char *back = args.filename;
05750       char *front;
05751       ast_stopstream(chan);      /* Stop anything playing */
05752       /* Stream the list of files */
05753       while (!res && (front = strsep(&back, "&")) ) {
05754          if ( (res = ast_streamfile(chan, front, args.lang)) ) {
05755             ast_log(LOG_WARNING, "ast_streamfile failed on %s for %s\n", chan->name, (char*)data);
05756             res = 0;
05757             break;
05758          }
05759          if (ast_test_flag(&flags, BACKGROUND_PLAYBACK)) {
05760             res = ast_waitstream(chan, "");
05761          } else if (ast_test_flag(&flags, BACKGROUND_MATCHEXTEN)) {
05762             res = ast_waitstream_exten(chan, args.context);
05763          } else {
05764             res = ast_waitstream(chan, AST_DIGIT_ANY);
05765          }
05766          ast_stopstream(chan);
05767       }
05768    }
05769 
05770    /*
05771     * If the single digit DTMF is an extension in the specified context, then
05772     * go there and signal no DTMF.  Otherwise, we should exit with that DTMF.
05773     * If we're in Macro, we'll exit and seek that DTMF as the beginning of an
05774     * extension in the Macro's calling context.  If we're not in Macro, then
05775     * we'll simply seek that extension in the calling context.  Previously,
05776     * someone complained about the behavior as it related to the interior of a
05777     * Gosub routine, and the fix (#14011) inadvertently broke FreePBX
05778     * (#14940).  This change should fix both of these situations, but with the
05779     * possible incompatibility that if a single digit extension does not exist
05780     * (but a longer extension COULD have matched), it would have previously
05781     * gone immediately to the "i" extension, but will now need to wait for a
05782     * timeout.
05783     */
05784    if ((exten[0] = res) && !ast_matchmore_extension(chan, args.context, exten, 1, chan->cid.cid_num)) {
05785       snprintf(chan->exten, sizeof(chan->exten), "%c", res);
05786       ast_copy_string(chan->context, args.context, sizeof(chan->context));
05787       chan->priority = 0;
05788       res = 0;
05789    }
05790    return res;
05791 }

static int pbx_builtin_busy ( struct ast_channel ,
void *   
) [static]

Definition at line 5440 of file pbx.c.

References ast_channel::_state, ast_cdr_busy(), AST_CONTROL_BUSY, ast_indicate(), ast_setstate(), AST_STATE_BUSY, AST_STATE_UP, and wait_for_hangup().

05441 {
05442    ast_indicate(chan, AST_CONTROL_BUSY);
05443    /* Don't change state of an UP channel, just indicate
05444       busy in audio */
05445    if (chan->_state != AST_STATE_UP) {
05446       ast_setstate(chan, AST_STATE_BUSY);
05447       ast_cdr_busy(chan->cdr);
05448    }
05449    wait_for_hangup(chan, data);
05450    return -1;
05451 }

static int pbx_builtin_congestion ( struct ast_channel ,
void *   
) [static]

Definition at line 5456 of file pbx.c.

References ast_channel::_state, AST_CONTROL_CONGESTION, ast_indicate(), ast_setstate(), AST_STATE_BUSY, AST_STATE_UP, and wait_for_hangup().

05457 {
05458    ast_indicate(chan, AST_CONTROL_CONGESTION);
05459    /* Don't change state of an UP channel, just indicate
05460       congestion in audio */
05461    if (chan->_state != AST_STATE_UP)
05462       ast_setstate(chan, AST_STATE_BUSY);
05463    wait_for_hangup(chan, data);
05464    return -1;
05465 }

static int pbx_builtin_execiftime ( struct ast_channel ,
void *   
) [static]

Definition at line 5583 of file pbx.c.

References app, ast_build_timing(), ast_check_timing(), ast_log(), ast_strdupa, ast_strlen_zero(), LOG_WARNING, pbx_exec(), pbx_findapp(), s, and S_OR.

05584 {
05585    char *s, *appname;
05586    struct ast_timing timing;
05587    struct ast_app *app;
05588    static const char *usage = "ExecIfTime requires an argument:\n  <time range>|<days of week>|<days of month>|<months>?<appname>[|<appargs>]";
05589 
05590    if (ast_strlen_zero(data)) {
05591       ast_log(LOG_WARNING, "%s\n", usage);
05592       return -1;
05593    }
05594 
05595    appname = ast_strdupa(data);
05596 
05597    s = strsep(&appname,"?");  /* Separate the timerange and application name/data */
05598    if (!appname) {   /* missing application */
05599       ast_log(LOG_WARNING, "%s\n", usage);
05600       return -1;
05601    }
05602 
05603    if (!ast_build_timing(&timing, s)) {
05604       ast_log(LOG_WARNING, "Invalid Time Spec: %s\nCorrect usage: %s\n", s, usage);
05605       return -1;
05606    }
05607 
05608    if (!ast_check_timing(&timing))  /* outside the valid time window, just return */
05609       return 0;
05610 
05611    /* now split appname|appargs */
05612    if ((s = strchr(appname, '|')))
05613       *s++ = '\0';
05614 
05615    if ((app = pbx_findapp(appname))) {
05616       return pbx_exec(chan, app, S_OR(s, ""));
05617    } else {
05618       ast_log(LOG_WARNING, "Cannot locate application %s\n", appname);
05619       return -1;
05620    }
05621 }

static int pbx_builtin_goto ( struct ast_channel chan,
void *  data 
) [static]

Goto

Definition at line 5796 of file pbx.c.

References ast_parseable_goto(), ast_verbose(), ast_channel::context, ast_channel::exten, option_verbose, ast_channel::priority, and VERBOSE_PREFIX_3.

Referenced by pbx_builtin_gotoif(), and pbx_builtin_gotoiftime().

05797 {
05798    int res = ast_parseable_goto(chan, data);
05799    if (!res && (option_verbose > 2))
05800       ast_verbose( VERBOSE_PREFIX_3 "Goto (%s,%s,%d)\n", chan->context,chan->exten, chan->priority+1);
05801    return res;
05802 }

static int pbx_builtin_gotoiftime ( struct ast_channel ,
void *   
) [static]

Definition at line 5557 of file pbx.c.

References ast_build_timing(), ast_check_timing(), ast_log(), ast_strdupa, ast_strlen_zero(), LOG_WARNING, pbx_builtin_goto(), and s.

05558 {
05559    int res=0;
05560    char *s, *ts;
05561    struct ast_timing timing;
05562 
05563    if (ast_strlen_zero(data)) {
05564       ast_log(LOG_WARNING, "GotoIfTime requires an argument:\n  <time range>|<days of week>|<days of month>|<months>?[[context|]extension|]priority\n");
05565       return -1;
05566    }
05567 
05568    ts = s = ast_strdupa(data);
05569 
05570    /* Separate the Goto path */
05571    strsep(&ts,"?");
05572 
05573    /* struct ast_include include contained garbage here, fixed by zeroing it on get_timerange */
05574    if (ast_build_timing(&timing, s) && ast_check_timing(&timing))
05575       res = pbx_builtin_goto(chan, ts);
05576    
05577    return res;
05578 }

static int pbx_builtin_hangup ( struct ast_channel ,
void *   
) [static]

Definition at line 5527 of file pbx.c.

References AST_CAUSE_NORMAL_CLEARING, ast_log(), ast_str2cause(), ast_strlen_zero(), ast_channel::hangupcause, and LOG_NOTICE.

05528 {
05529    if (!ast_strlen_zero(data)) {
05530       int cause;
05531       char *endptr;
05532 
05533       if ((cause = ast_str2cause(data)) > -1) {
05534          chan->hangupcause = cause;
05535          return -1;
05536       }
05537       
05538       cause = strtol((const char *) data, &endptr, 10);
05539       if (cause != 0 || (data != endptr)) {
05540          chan->hangupcause = cause;
05541          return -1;
05542       }
05543          
05544       ast_log(LOG_NOTICE, "Invalid cause given to Hangup(): \"%s\"\n", (char *) data);
05545    }
05546 
05547    if (!chan->hangupcause) {
05548       chan->hangupcause = AST_CAUSE_NORMAL_CLEARING;
05549    }
05550 
05551    return -1;
05552 }

static int pbx_builtin_progress ( struct ast_channel ,
void *   
) [static]

Definition at line 5422 of file pbx.c.

References AST_CONTROL_PROGRESS, and ast_indicate().

05423 {
05424    ast_indicate(chan, AST_CONTROL_PROGRESS);
05425    return 0;
05426 }

static int pbx_builtin_resetcdr ( struct ast_channel ,
void *   
) [static]

Definition at line 5499 of file pbx.c.

References ast_app_parse_options(), ast_cdr_reset(), ast_strdupa, ast_strlen_zero(), ast_channel::cdr, ast_flags::flags, and resetcdr_opts.

05500 {
05501    char *args;
05502    struct ast_flags flags = { 0 };
05503 
05504    if (!ast_strlen_zero(data)) {
05505       args = ast_strdupa(data);
05506       ast_app_parse_options(resetcdr_opts, &flags, NULL, args);
05507    }
05508 
05509    ast_cdr_reset(chan->cdr, &flags);
05510 
05511    return 0;
05512 }

static int pbx_builtin_ringing ( struct ast_channel ,
void *   
) [static]

Definition at line 5431 of file pbx.c.

References AST_CONTROL_RINGING, and ast_indicate().

05432 {
05433    ast_indicate(chan, AST_CONTROL_RINGING);
05434    return 0;
05435 }

static int pbx_builtin_setamaflags ( struct ast_channel ,
void *   
) [static]

Definition at line 5517 of file pbx.c.

References ast_cdr_setamaflags().

05518 {
05519    /* Copy the AMA Flags as specified */
05520    ast_cdr_setamaflags(chan, data ? data : "");
05521    return 0;
05522 }

static int pbx_builtin_wait ( struct ast_channel ,
void *   
) [static]

Definition at line 5626 of file pbx.c.

References ast_safe_sleep(), and s.

05627 {
05628    double s;
05629    int ms;
05630 
05631    /* Wait for "n" seconds */
05632    if (data && (s = atof(data)) > 0) {
05633       ms = s * 1000.0;
05634       return ast_safe_sleep(chan, ms);
05635    }
05636    return 0;
05637 }

static int pbx_builtin_waitexten ( struct ast_channel ,
void *   
) [static]

Definition at line 5642 of file pbx.c.

References AST_APP_ARG, ast_app_parse_options(), AST_CONTROL_HOLD, AST_CONTROL_UNHOLD, AST_DECLARE_APP_ARGS, ast_exists_extension(), ast_indicate(), ast_indicate_data(), ast_log(), AST_SOFTHANGUP_TIMEOUT, AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero(), ast_test_flag, ast_verbose(), ast_waitfordigit(), ast_flags::flags, LOG_WARNING, option_verbose, parse(), set_ext_pri(), VERBOSE_PREFIX_3, WAITEXTEN_MOH, and waitexten_opts.

05643 {
05644    int ms, res;
05645    double sec;
05646    struct ast_flags flags = {0};
05647    char *opts[1] = { NULL };
05648    char *parse;
05649    AST_DECLARE_APP_ARGS(args,
05650       AST_APP_ARG(timeout);
05651       AST_APP_ARG(options);
05652    );
05653 
05654    if (!ast_strlen_zero(data)) {
05655       parse = ast_strdupa(data);
05656       AST_STANDARD_APP_ARGS(args, parse);
05657    } else
05658       memset(&args, 0, sizeof(args));
05659 
05660    if (args.options)
05661       ast_app_parse_options(waitexten_opts, &flags, opts, args.options);
05662    
05663    if (ast_test_flag(&flags, WAITEXTEN_MOH) && !opts[0] ) {
05664       ast_log(LOG_WARNING, "The 'm' option has been specified for WaitExten without a class.\n"); 
05665    } else if (ast_test_flag(&flags, WAITEXTEN_MOH))
05666       ast_indicate_data(chan, AST_CONTROL_HOLD, opts[0], strlen(opts[0]));
05667 
05668    /* Wait for "n" seconds */
05669    if (args.timeout && (sec = atof(args.timeout)) > 0.0)
05670       ms = 1000 * sec;
05671    else if (chan->pbx)
05672       ms = chan->pbx->rtimeout * 1000;
05673    else
05674       ms = 10000;
05675    res = ast_waitfordigit(chan, ms);
05676    if (!res) {
05677       if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 1, chan->cid.cid_num)) {
05678          if (option_verbose > 2)
05679             ast_verbose(VERBOSE_PREFIX_3 "Timeout on %s, continuing...\n", chan->name);
05680       } else if (chan->_softhangup == AST_SOFTHANGUP_TIMEOUT) {
05681          if (option_verbose > 2)
05682             ast_verbose(VERBOSE_PREFIX_3 "Call timeout on %s, checking for 'T'\n", chan->name);
05683          res = -1;
05684       } else if (ast_exists_extension(chan, chan->context, "t", 1, chan->cid.cid_num)) {
05685          if (option_verbose > 2)
05686             ast_verbose(VERBOSE_PREFIX_3 "Timeout on %s, going to 't'\n", chan->name);
05687          set_ext_pri(chan, "t", 0); /* 0 will become 1, next time through the loop */
05688       } else {
05689          ast_log(LOG_WARNING, "Timeout but no rule 't' in context '%s'\n", chan->context);
05690          res = -1;
05691       }
05692    }
05693 
05694    if (ast_test_flag(&flags, WAITEXTEN_MOH))
05695       ast_indicate(chan, AST_CONTROL_UNHOLD);
05696 
05697    return res;
05698 }


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