Thu Dec 17 15:36:14 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 10216 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().

10217 {
10218    int res;
10219    char *sdata;
10220    char *opts;
10221    int force =0;
10222    unsigned short callno = PTR_TO_CALLNO(chan->tech_pvt);
10223    if (ast_strlen_zero(data))
10224       data = "default";
10225    sdata = ast_strdupa(data);
10226    opts = strchr(sdata, '|');
10227    if (opts)
10228       *opts='\0';
10229 
10230    if (chan->tech != &iax2_tech) {
10231       ast_log(LOG_NOTICE, "Can't provision a non-IAX device!\n");
10232       return -1;
10233    } 
10234    if (!callno || !iaxs[callno] || !iaxs[callno]->addr.sin_addr.s_addr) {
10235       ast_log(LOG_NOTICE, "Can't provision something with no IP?\n");
10236       return -1;
10237    }
10238    res = iax2_provision(&iaxs[callno]->addr, iaxs[callno]->sockfd, NULL, sdata, force);
10239    if (option_verbose > 2)
10240       ast_verbose(VERBOSE_PREFIX_3 "Provisioned IAXY at '%s' with '%s'= %d\n", 
10241       ast_inet_ntoa(iaxs[callno]->addr.sin_addr),
10242       sdata, res);
10243    return res;
10244 }

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

Definition at line 5490 of file pbx.c.

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

05491 {
05492    int delay = 0;
05493    int res;
05494 
05495    if (chan->_state == AST_STATE_UP)
05496       delay = 0;
05497    else if (!ast_strlen_zero(data))
05498       delay = atoi(data);
05499 
05500    res = ast_answer(chan);
05501    if (res)
05502       return res;
05503 
05504    if (delay)
05505       res = ast_safe_sleep(chan, delay);
05506 
05507    return res;
05508 }

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

Definition at line 5723 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.

05724 {
05725    int res = 0;
05726    struct ast_flags flags = {0};
05727    char *parse, exten[2] = "";
05728    AST_DECLARE_APP_ARGS(args,
05729       AST_APP_ARG(filename);
05730       AST_APP_ARG(options);
05731       AST_APP_ARG(lang);
05732       AST_APP_ARG(context);
05733    );
05734 
05735    if (ast_strlen_zero(data)) {
05736       ast_log(LOG_WARNING, "Background requires an argument (filename)\n");
05737       return -1;
05738    }
05739 
05740    parse = ast_strdupa(data);
05741 
05742    AST_STANDARD_APP_ARGS(args, parse);
05743 
05744    if (ast_strlen_zero(args.lang))
05745       args.lang = (char *)chan->language; /* XXX this is const */
05746 
05747    if (ast_strlen_zero(args.context))
05748       args.context = chan->context;
05749 
05750    if (args.options) {
05751       if (!strcasecmp(args.options, "skip"))
05752          flags.flags = BACKGROUND_SKIP;
05753       else if (!strcasecmp(args.options, "noanswer"))
05754          flags.flags = BACKGROUND_NOANSWER;
05755       else
05756          ast_app_parse_options(background_opts, &flags, NULL, args.options);
05757    }
05758 
05759    /* Answer if need be */
05760    if (chan->_state != AST_STATE_UP) {
05761       if (ast_test_flag(&flags, BACKGROUND_SKIP)) {
05762          return 0;
05763       } else if (!ast_test_flag(&flags, BACKGROUND_NOANSWER)) {
05764          res = ast_answer(chan);
05765       }
05766    }
05767 
05768    if (!res) {
05769       char *back = args.filename;
05770       char *front;
05771       ast_stopstream(chan);      /* Stop anything playing */
05772       /* Stream the list of files */
05773       while (!res && (front = strsep(&back, "&")) ) {
05774          if ( (res = ast_streamfile(chan, front, args.lang)) ) {
05775             ast_log(LOG_WARNING, "ast_streamfile failed on %s for %s\n", chan->name, (char*)data);
05776             res = 0;
05777             break;
05778          }
05779          if (ast_test_flag(&flags, BACKGROUND_PLAYBACK)) {
05780             res = ast_waitstream(chan, "");
05781          } else if (ast_test_flag(&flags, BACKGROUND_MATCHEXTEN)) {
05782             res = ast_waitstream_exten(chan, args.context);
05783          } else {
05784             res = ast_waitstream(chan, AST_DIGIT_ANY);
05785          }
05786          ast_stopstream(chan);
05787       }
05788    }
05789 
05790    /*
05791     * If the single digit DTMF is an extension in the specified context, then
05792     * go there and signal no DTMF.  Otherwise, we should exit with that DTMF.
05793     * If we're in Macro, we'll exit and seek that DTMF as the beginning of an
05794     * extension in the Macro's calling context.  If we're not in Macro, then
05795     * we'll simply seek that extension in the calling context.  Previously,
05796     * someone complained about the behavior as it related to the interior of a
05797     * Gosub routine, and the fix (#14011) inadvertently broke FreePBX
05798     * (#14940).  This change should fix both of these situations, but with the
05799     * possible incompatibility that if a single digit extension does not exist
05800     * (but a longer extension COULD have matched), it would have previously
05801     * gone immediately to the "i" extension, but will now need to wait for a
05802     * timeout.
05803     */
05804    if ((exten[0] = res) && !ast_matchmore_extension(chan, args.context, exten, 1, chan->cid.cid_num)) {
05805       snprintf(chan->exten, sizeof(chan->exten), "%c", res);
05806       ast_copy_string(chan->context, args.context, sizeof(chan->context));
05807       chan->priority = 0;
05808       res = 0;
05809    }
05810    return res;
05811 }

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

Definition at line 5460 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().

05461 {
05462    ast_indicate(chan, AST_CONTROL_BUSY);
05463    /* Don't change state of an UP channel, just indicate
05464       busy in audio */
05465    if (chan->_state != AST_STATE_UP) {
05466       ast_setstate(chan, AST_STATE_BUSY);
05467       ast_cdr_busy(chan->cdr);
05468    }
05469    wait_for_hangup(chan, data);
05470    return -1;
05471 }

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

Definition at line 5476 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().

05477 {
05478    ast_indicate(chan, AST_CONTROL_CONGESTION);
05479    /* Don't change state of an UP channel, just indicate
05480       congestion in audio */
05481    if (chan->_state != AST_STATE_UP)
05482       ast_setstate(chan, AST_STATE_BUSY);
05483    wait_for_hangup(chan, data);
05484    return -1;
05485 }

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

Definition at line 5603 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.

05604 {
05605    char *s, *appname;
05606    struct ast_timing timing;
05607    struct ast_app *app;
05608    static const char *usage = "ExecIfTime requires an argument:\n  <time range>|<days of week>|<days of month>|<months>?<appname>[|<appargs>]";
05609 
05610    if (ast_strlen_zero(data)) {
05611       ast_log(LOG_WARNING, "%s\n", usage);
05612       return -1;
05613    }
05614 
05615    appname = ast_strdupa(data);
05616 
05617    s = strsep(&appname,"?");  /* Separate the timerange and application name/data */
05618    if (!appname) {   /* missing application */
05619       ast_log(LOG_WARNING, "%s\n", usage);
05620       return -1;
05621    }
05622 
05623    if (!ast_build_timing(&timing, s)) {
05624       ast_log(LOG_WARNING, "Invalid Time Spec: %s\nCorrect usage: %s\n", s, usage);
05625       return -1;
05626    }
05627 
05628    if (!ast_check_timing(&timing))  /* outside the valid time window, just return */
05629       return 0;
05630 
05631    /* now split appname|appargs */
05632    if ((s = strchr(appname, '|')))
05633       *s++ = '\0';
05634 
05635    if ((app = pbx_findapp(appname))) {
05636       return pbx_exec(chan, app, S_OR(s, ""));
05637    } else {
05638       ast_log(LOG_WARNING, "Cannot locate application %s\n", appname);
05639       return -1;
05640    }
05641 }

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

Goto

Definition at line 5816 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().

05817 {
05818    int res = ast_parseable_goto(chan, data);
05819    if (!res && (option_verbose > 2))
05820       ast_verbose( VERBOSE_PREFIX_3 "Goto (%s,%s,%d)\n", chan->context,chan->exten, chan->priority+1);
05821    return res;
05822 }

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

Definition at line 5577 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.

05578 {
05579    int res=0;
05580    char *s, *ts;
05581    struct ast_timing timing;
05582 
05583    if (ast_strlen_zero(data)) {
05584       ast_log(LOG_WARNING, "GotoIfTime requires an argument:\n  <time range>|<days of week>|<days of month>|<months>?[[context|]extension|]priority\n");
05585       return -1;
05586    }
05587 
05588    ts = s = ast_strdupa(data);
05589 
05590    /* Separate the Goto path */
05591    strsep(&ts,"?");
05592 
05593    /* struct ast_include include contained garbage here, fixed by zeroing it on get_timerange */
05594    if (ast_build_timing(&timing, s) && ast_check_timing(&timing))
05595       res = pbx_builtin_goto(chan, ts);
05596    
05597    return res;
05598 }

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

Definition at line 5547 of file pbx.c.

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

05548 {
05549    if (!ast_strlen_zero(data)) {
05550       int cause;
05551       char *endptr;
05552 
05553       if ((cause = ast_str2cause(data)) > -1) {
05554          chan->hangupcause = cause;
05555          return -1;
05556       }
05557       
05558       cause = strtol((const char *) data, &endptr, 10);
05559       if (cause != 0 || (data != endptr)) {
05560          chan->hangupcause = cause;
05561          return -1;
05562       }
05563          
05564       ast_log(LOG_NOTICE, "Invalid cause given to Hangup(): \"%s\"\n", (char *) data);
05565    }
05566 
05567    if (!chan->hangupcause) {
05568       chan->hangupcause = AST_CAUSE_NORMAL_CLEARING;
05569    }
05570 
05571    return -1;
05572 }

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

Definition at line 5442 of file pbx.c.

References AST_CONTROL_PROGRESS, and ast_indicate().

05443 {
05444    ast_indicate(chan, AST_CONTROL_PROGRESS);
05445    return 0;
05446 }

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

Definition at line 5519 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.

05520 {
05521    char *args;
05522    struct ast_flags flags = { 0 };
05523 
05524    if (!ast_strlen_zero(data)) {
05525       args = ast_strdupa(data);
05526       ast_app_parse_options(resetcdr_opts, &flags, NULL, args);
05527    }
05528 
05529    ast_cdr_reset(chan->cdr, &flags);
05530 
05531    return 0;
05532 }

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

Definition at line 5451 of file pbx.c.

References AST_CONTROL_RINGING, and ast_indicate().

05452 {
05453    ast_indicate(chan, AST_CONTROL_RINGING);
05454    return 0;
05455 }

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

Definition at line 5537 of file pbx.c.

References ast_cdr_setamaflags().

05538 {
05539    /* Copy the AMA Flags as specified */
05540    ast_cdr_setamaflags(chan, data ? data : "");
05541    return 0;
05542 }

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

Definition at line 5646 of file pbx.c.

References ast_safe_sleep(), and s.

05647 {
05648    double s;
05649    int ms;
05650 
05651    /* Wait for "n" seconds */
05652    if (data && (s = atof(data)) > 0) {
05653       ms = s * 1000.0;
05654       return ast_safe_sleep(chan, ms);
05655    }
05656    return 0;
05657 }

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

Definition at line 5662 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.

05663 {
05664    int ms, res;
05665    double sec;
05666    struct ast_flags flags = {0};
05667    char *opts[1] = { NULL };
05668    char *parse;
05669    AST_DECLARE_APP_ARGS(args,
05670       AST_APP_ARG(timeout);
05671       AST_APP_ARG(options);
05672    );
05673 
05674    if (!ast_strlen_zero(data)) {
05675       parse = ast_strdupa(data);
05676       AST_STANDARD_APP_ARGS(args, parse);
05677    } else
05678       memset(&args, 0, sizeof(args));
05679 
05680    if (args.options)
05681       ast_app_parse_options(waitexten_opts, &flags, opts, args.options);
05682    
05683    if (ast_test_flag(&flags, WAITEXTEN_MOH) && !opts[0] ) {
05684       ast_log(LOG_WARNING, "The 'm' option has been specified for WaitExten without a class.\n"); 
05685    } else if (ast_test_flag(&flags, WAITEXTEN_MOH))
05686       ast_indicate_data(chan, AST_CONTROL_HOLD, opts[0], strlen(opts[0]));
05687 
05688    /* Wait for "n" seconds */
05689    if (args.timeout && (sec = atof(args.timeout)) > 0.0)
05690       ms = 1000 * sec;
05691    else if (chan->pbx)
05692       ms = chan->pbx->rtimeout * 1000;
05693    else
05694       ms = 10000;
05695    res = ast_waitfordigit(chan, ms);
05696    if (!res) {
05697       if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 1, chan->cid.cid_num)) {
05698          if (option_verbose > 2)
05699             ast_verbose(VERBOSE_PREFIX_3 "Timeout on %s, continuing...\n", chan->name);
05700       } else if (chan->_softhangup == AST_SOFTHANGUP_TIMEOUT) {
05701          if (option_verbose > 2)
05702             ast_verbose(VERBOSE_PREFIX_3 "Call timeout on %s, checking for 'T'\n", chan->name);
05703          res = -1;
05704       } else if (ast_exists_extension(chan, chan->context, "t", 1, chan->cid.cid_num)) {
05705          if (option_verbose > 2)
05706             ast_verbose(VERBOSE_PREFIX_3 "Timeout on %s, going to 't'\n", chan->name);
05707          set_ext_pri(chan, "t", 0); /* 0 will become 1, next time through the loop */
05708       } else {
05709          ast_log(LOG_WARNING, "Timeout but no rule 't' in context '%s'\n", chan->context);
05710          res = -1;
05711       }
05712    }
05713 
05714    if (ast_test_flag(&flags, WAITEXTEN_MOH))
05715       ast_indicate(chan, AST_CONTROL_UNHOLD);
05716 
05717    return res;
05718 }


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