[asterisk-dev] AEL and switch breaks ${EXTEN}, bug in AEL compiler?

[Steve Murphy]

On Thu, 2009-02-05 at 13:18 +0100, Klaus Darilion wrote:
> Hi!
> 
> I use Asterisk 1.4.23. I have macro which uses ${MACRO_EXTEN} to access 
> the original dialed extension. The problem arises when I use this macro 
> in an AEL context which uses switch() conditions:
> 
> Please see the attached context (as attachment to avoid line wrapping in 
> the email).
> 

Klaus--

Your attachment is the post-compiled, extensions.conf-format version
of the dialplan. Please include the macro and contexts from your
dialplan,
so I can see better what's going on and why.

murf

> The switch happens in priority 13:
>           13. Goto(sw-445-${X-PROP-CLIPNOSCREEN}|10)    [pbx_ael]
> 
> it jumps to extension sw-445-2. From there it jumps after the switch() 
> construct.
>    'sw-445-2' =>     10. Goto(_[+1-9].|14)
> 
> Here I wonder why it uses the pattern _[+1-9]. instead of the originally 
> dialed number (which is stored in ~~EXTEN~~).
> 
> Then it calls my macro in
> 
>         20. Macro(blacklistMakro)
> 
> 
> Here this macro uses ${MACRO_EXTEN} which does not work as 
> ${MACRO_EXTEN} contains _[+1-9]. instead of the originally dialed number.
> 
> 
> Of course I could work around it by calling the macro with a parameter 
> to signal the extensions, but IMO the macro should work from an AEL 
> context as from a normal context.
> 
> Maybe it is a bug in the AEL compiler when jumping out of the switch 
> construct.
> 
> regards
> klaus
> plain text document attachment (context.txt)
> 'sw-445-' =>      10. Goto(sw-445-.|10)                         [pbx_ael]
>   'sw-445-1' =>     10. Set(X-PROP-AN=${X-PROP-KOPFNUMMER})       [pbx_ael]
>                     11. Goto(_[+1-9].|14)                         [pbx_ael]
>   'sw-445-2' =>     10. Goto(_[+1-9].|14)                         [pbx_ael]
>   '_sw-445-.' =>    10. Set(X-PROP-AN=${X-PROP-KOPFNUMMER})       [pbx_ael]
>                     11. GotoIf($[${EXISTS(${X-PROP-AU})}]?12:17)  [pbx_ael]
>                     12. Set(len=${LEN(${X-PROP-AU})})             [pbx_ael]
>                     13. GotoIf($[ "${X-PROP-AU:0:${len}}"!="${X-PROP-KOPFNUMMER}" ]?14:16) [pbx_ael]
>                     14. NoOp(Trunk-peer signals wrong CLI )       [pbx_ael]
>                     15. Set(X-PROP-AU=)                           [pbx_ael]
>                     16. NoOp(Finish if-if-sw-fromSipTrunking-default-445-446-447) [pbx_ael]
>                     17. NoOp(Finish if-sw-fromSipTrunking-default-445-446) [pbx_ael]
>                     18. Goto(_[+1-9].|14)                         [pbx_ael]
>   '_[+1-9].' =>     1. Set(~~EXTEN~~=${EXTEN})                    [pbx_ael]
>                     2. Wait(1)                                    [pbx_ael]
>                     3. Macro(checkE164OrDeleteMakro|X-PROP-AN)    [pbx_ael]
>                     4. Macro(checkE164OrDeleteMakro|X-PROP-AU)    [pbx_ael]
>                     5. Macro(checkE164OrDeleteMakro|X-PROP-C)     [pbx_ael]
>                     6. GotoIf($[${ISNULL(${X-PROP-AN})}]?7:9)     [pbx_ael]
>                     7. Set(X-PROP-AN=${X-PROP-KOPFNUMMER})        [pbx_ael]
>                     8. Set(X-PROP-CLIR=1)                         [pbx_ael]
>                     9. NoOp(Finish if-fromSipTrunking-443)        [pbx_ael]
>                     10. GotoIf($[${ISNULL(${X-PROP-CLIPNOSCREEN})}]?11:12) [pbx_ael]
>                     11. Set(X-PROP-CLIPNOSCREEN=0)                [pbx_ael]
>                     12. NoOp(Finish if-fromSipTrunking-444)       [pbx_ael]
>                     13. Goto(sw-445-${X-PROP-CLIPNOSCREEN}|10)    [pbx_ael]
>                     14. NoOp(Finish switch-fromSipTrunking-445)   [pbx_ael]
>                     15. Set(CALLERID(num)=${X-PROP-AN})           [pbx_ael]
>                     16. Set(CALLERID(name)=${X-PROP-AU})          [pbx_ael]
>                     17. Set(X-PROP-USERFIELD=TRUNKINGID=${SIPCHANINFO(peername)}) [pbx_ael]
>                     18. Gosub(toNotrufe|${~~EXTEN~~}|1)           [pbx_ael]
>                     19. Macro(checkBlockingOutgoingMakro)         [pbx_ael]
>                     20. Macro(blacklistMakro)                     [pbx_ael]
>                     21. Gosub(toKurzrufe|${~~EXTEN~~}|1)          [pbx_ael]
>                     22. Macro(setOfisSipHeaderMakro)              [pbx_ael]
>                     23. Set(TIMEOUT(absolute)=${GLOBAL(X-PROP-TRUNKING-MAXCALLDURATION)}) [pbx_ael]
>                     24. Macro(dialToGwAsteriskMakro|${~~EXTEN~~}|${GLOBAL(X-PROP-MAXRINGDURATION)}) [pbx_ael]
>                     25. Hangup()                                  [pbx_ael]
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-- 
     Steve Murphy
Digium, Inc. | Software Developer
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