[asterisk-dev] Real-time call control for Dial app
Kaloyan Kovachev
kkovachev at varna.net
Tue Apr 8 09:39:27 CDT 2008
On Thu, 3 Apr 2008 10:44:36 +0300, Kaloyan Kovachev wrote
> Hi list,
> After some testing it proved to be that it is not possible to call CURL() or
> System() from inside RTCC application, because it never returns from the first
> call.
> By calling a macro as RTCC app the other commands are executed, but the
> execution stops at the line SET(some_var=${CURL(url)})
> Do I need some special handling for them?
>
Not sure, but my guess is that it is because of the autoservice started on the
calling channel which is allready bridged, but the workaround is to use AGI
> P.S.
> The patch (for 1.4, other releases and future versions will be) hosted at
> http://ast.varna.net including the CURL version provided from Gray Man
>
The new version (V2 uploaded) is now using just a single thread for all calls
and the Readme has an example AGI.
> On Mon, 31 Mar 2008 16:20:10 +0800, Charles Wang wrote
> > Hi, Kaloyan.
> >
> > I tried to use non-curl version and test it as your tips and the
> How2Test.1.5-56340.doc.
> > But I got error messages on console, it seems never check the URL
> periodically(I can only find one). In fact, it didn't check the URL during my
> test. What's wrong in my configuration file?
> > I can make sure the URL is correct ( I test it using IE (InterNet
Explorer)).
> >
> > Can you please give me more tips?
> >
> > Thank you.
> >
> > Error Messages:
> > -- Limit Data for this call:
> > > timelimit = 30000
> > > recheck each = 5000
> > > recheck app =
>
{CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=&dst=&channelid=&seqnum=1)}
> > > recheck delay = 0
> > > play_warning = 10000
> > > play_to_caller = yes
> > > play_to_callee = no
> > > warning_freq = 0
> > > start_sound = (null)
> > > warning_sound = timeleft
> > > end_sound = (null)
> > -- Called AnswerAndWait at default
> > -- Executing [AnswerAndWait at default:1]
> Wait("Local/AnswerAndWait at default-70ef,2", "10") in new stack
> > -- Executing [AnswerAndWait at ppcall-intercom:2]
> Answer("Local/AnswerAndWait at default-70ef,2", "") in new stack
> > -- Executing [AnswerAndWait at ppcall-intercom:3]
> Wait("Local/AnswerAndWait at default-70ef,2", "10") in new stack
> > -- Local/AnswerAndWait at default-70ef,1 answered SIP/2922-1
> > [Mar 31 15:55:43] WARNING[6269]: app_dial.c:864 ast_call_governor: Could not
> find application
>
({CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=&dst=&channelid=&seqnum=1)}).
> Timelimit not checked for call (1206950127.3)
> > [Mar 31 15:55:48] WARNING[6269]: app_dial.c:864 ast_call_governor: Could not
> find application
>
({CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=&dst=&channelid=&seqnum=1)}).
> Timelimit not checked for call (1206950127.3)
> >
> >
> > My extensions.conf :
> >
> > [globals]
> > LIMIT_RECHECK_INTERVAL=5000
> >
> > LIMIT_RECHECK_APP=$
> > LIMIT_RECHECK_APP=${LIMIT_RECHECK_APP}{CURL(http://127.0.0.1/test.php?
> > LIMIT_RECHECK_APP=${LIMIT_RECHECK_APP}app=rtcc&accountcode=$
> > LIMIT_RECHECK_APP=${LIMIT_RECHECK_APP}{ACCOUNTCODE}&dst=$
> > LIMIT_RECHECK_APP=${LIMIT_RECHECK_APP}{EXTEN}&channelid=$
> > LIMIT_RECHECK_APP=${LIMIT_RECHECK_APP}{UNIQUEID}&seqnum=1)}
> > [default]
> > exten => AnswerAndWait,1,Wait(10)
> > exten => AnswerAndWait,2,Answer()
> > exten => AnswerAndWait,3,Wait(10)
> > exten => AnswerAndWait,4,Goto(3)
> > exten => _X.,1,Set(TimeLimit=30000) ;; 30 sec
> > exten => _X.,n,Set(RTCC_INTERVAL=10000) ;; 10 sec
> > exten =>
> _X.,n,Dial(Local/AnswerAndWait at default,,L(${TimeLimit}:${RTCC_INTERVAL}))
> > exten => _X.,n,Hangup
> >
> >
> >
> > [Mar 31 15:43:57] WARNING[6125]: app_dial.c:864 ast_call_governor: Could not
> find application
>
(${CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=${ACCOUNTCODE}&dst=${EXTEN}&channelid=${UNIQUEID}&seqnum=1)}{CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=&dst=&channelid=&seqnum=1)}).
> Timelimit not checked for call (1206949422.10)
> > [Mar 31 15:44:02] WARNING[6125]: app_dial.c:864 ast_call_governor: Could not
> find application
>
(${CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=${ACCOUNTCODE}&dst=${EXTEN}&channelid=${UNIQUEID}&seqnum=1)}{CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=&dst=&channelid=&seqnum=1)}).
> Timelimit not checked for call (1206949422.10)
> >
> >
> > 2008/3/28, Grey Man <greymanvoip at gmail.com>: On Thu, Mar 27, 2008 at 10:10
> AM, Charles Wang <lazy.charles at gmail.com> wrote:
> > > Hi all,
> > >
> > > I tried to using rtcc-curl-1.4.13.patch in bug id 6335
> > > http://bugs.digium.com/view.php?id=6335 reported by KNK. I patch it to
> > > asterisk 1.4.18.1 and it seems work.
> > >
> > > My extensions.conf lists below:
> > >
> > > exten =>
> > >
>
_X.,1,Set(TimeLimit=${CURL(http://127.0.0.1/test.php?app=rtcc&accountcode=${ACCOUNTCODE}&dst=${EXTEN}&channelid=${UNIQUEID}&seqnum=1)})
>
> > > exten => _X.,n,Set(TimeLimit=${MATH(${TimeLimit}+5,int)})
> > > exten => _X.,n,Set(TimeLimit=${MATH(${TimeLimit}*1000,int)})
> > > exten => _X.,n,Set(dst=${EXTEN})
> > > exten => _X.,n,NoOp(Initial time limit for ${ACCOUNTCODE} and ${EXTEN} set
> > > at ${TimeLimit})
> > > exten => _X.,n,Set(RTCC_START_SEQNUM=2)
> > > exten => _X.,n,Set(RTCC_INTERVAL=60000)
> > > exten => _X.,n,Dial(SIP/1025,,L(${TimeLimit}:::http://127.0.0.1/test.php))
> > > exten => _X.,n,Hangup
> > >
> > > My URL test.php always reponses interger 120. It is pure text format
without
> > > any symbol before/after it.
> > >
> > > My test.php: ( one row only )
> > > 120
> > >
> > > -- Accepting AUTHENTICATED call from XXX.XXX.XXX.XXX:
> > > > requested format = ilbc,
> > > > requested prefs = (),
> > > > actual format = ilbc,
> > > > host prefs = (ilbc),
> > > > priority = mine
> > > -- Executing [_X. at default:1] Set("SIP/2922-10", "TimeLimit=120") in
new
> > > stack
> > > -- Executing [_X. at default:2] Set("SIP/2922-10", "TimeLimit=125") in new
> > > stack
> > > -- Executing [_X. at default:3] Set("SIP/2922-10", "TimeLimit=125000") in
> > > new stack
> > > -- Executing [_X. at default:4] Set("SIP/2922-10", "dst=295") in new
stack
> > > -- Executing [_X. at default:5] NoOp("SIP/2922-10", "Initial time limit
for
> > > and 295 set at 45000") in new stack
> > > -- Executing [_X. at default:6] Set("SIP/2922-10",
"RTCC_START_SEQNUM=2")
> > > in new stack
> > > -- Executing [_X. at default:7] Set("SIP/2922-10", "RTCC_INTERVAL=60000")
> > > in new stack
> > > -- Executing [_X. at default:8] Dial("SIP/2922-10",
> > > "SIP/1025||L(125000::http://127.0.0.1/test.php)") in new stack
> > > -- Limit Data for this call:
> > > > timelimit = 125000
> > > > play_warning = 0
> > > > play_to_caller = yes
> > > > play_to_callee = no
> > > > warning_freq = 0
> > > > rtcc url = //127.0.0.1/test.php
> > > > rtcc interval = 60000
> > > > rtcc exp intvl = 0
> > > > rtcc seqnum = 2
> > > > start_sound = (null)
> > > > warning_sound = timeleft
> > > > end_sound = (null)
> > >
> > > During the period, I trace the /var/log/httpd/access_log. I can't find any
> > > request to test.php. Should it be visited each 6 sec ?
> >
> > You've got the interval set at 60s. If you want the rtcc call to be
> > made every 6s change to:
> >
> > exten => _X.,n,Set(RTCC_INTERVAL=6000)
> >
> > > (Only this line)
> > > 127.0.0.1 - - [27/Mar/2008:17:51:54 +0800] "GET
> > > /test.php?app=rtcc&accountcode=&dst=295&channelid=1206611514.2&seqnum=1
> > > HTTP/1.1" 200 3 "-" "asterisk-libcurl-agent/1.0"
> > >
> > > Then, I tried to reduce the integer number 120 to 80. I wish it can be
hunup
> > > when 80 seconds reached. But the answer was NO. It made my asterisk
crashed.
> > > I got this message in debug mode.
> > >
> > > [Mar 27 17:52:58] DEBUG[32053]: app_dial.c:877 rtcccallback: call control
> > > accountcode=2922, dst=295.
> > > asterisk: symbol lookup error: /usr/lib/asterisk/modules/app_dial.so:
> > > undefined symbol: curl_easy_init
> > >
> > > Can anyone kindly give me any idea?
> >
> > It's bad if the patch crashed Asterisk. The latest patch I did was for
> > 1.14.17 and it should have a better chance of working properly. I've
> > attached the 1.4.17 patch since I can't upload files to the bug
> > tracker anymore since it was decided by someone somewhere that rtcc is
> > of no interest to Asterisk users even though it's regularly requested
> > and there are two patch options available.
> >
> > Regards,
> >
> > Greyman.
> >
> > _______________________________________________
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> >
> >
> >
> > --
> >
> > Best Regards
> > Charles
>
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