urbit/pkg/arvo/app/lens.hoon

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/- lens
/+ *server
/= lens-mark /: /===/mar/lens/command
/!noun/
=, format
|%
:: +move: output effect
::
+$ move [bone card]
:: +card: output effect payload
::
+$ card
$% [%connect wire binding:eyre term]
[%http-response =http-event:http]
[%peel wire dock mark path]
[%poke wire dock poke]
[%pull wire dock ~]
==
::
+$ poke
$% [%lens-command command:lens]
==
::
+$ state
$% $: %0
job=(unit [=bone com=command:lens])
==
==
::
--
::
|_ [bow=bowl:gall state=state]
::
++ this .
::
++ prep
|= old=(unit *)
^- (quip move _this)
[~ this]
::
:: alerts us that we were bound. we need this because the vane calls back.
::
++ bound
|= [wir=wire success=? binding=binding:eyre]
^- (quip move _this)
[~ this]
::
++ poke-handle-http-request
%- (require-authorization:app ost.bow move this)
|= =inbound-request:eyre
^- (quip move _this)
?^ job.state
:_ this
[ost.bow %http-response %start [%500 ~] ~ %.y]~
::
=/ request-line (parse-request-line url.request.inbound-request)
=/ site (flop site.request-line)
::
=/ jon=json
(need (de-json:html q:(need body.request.inbound-request)))
=/ com=command:lens
(json:grab:lens-mark jon)
:_ this(job.state (some [ost.bow com]))
[ost.bow %peel /sole [our.bow %dojo] %lens-json /sole]~
::
++ diff-lens-json
|= [=wire jon=json]
^- (quip move _this)
?~ jon
[~ this]
?> ?=(^ job.state)
:_ this(job.state ~)
[bone.u.job.state %http-response (json-response:app (json-to-octs jon))]~
::
++ quit
|= =wire
^- (quip move _this)
~& [%quit wire]
[~ this]
::
++ reap
|= [=wire saw=(unit tang)]
^- (quip move _this)
?^ saw
[((slog u.saw) ~) this]
?> ?=(^ job.state)
:_ this
:~ [ost.bow %poke /sole [our.bow %dojo] %lens-command com.u.job.state]
[ost.bow %pull /sole [our.bow %dojo] ~]
==
::
++ coup
|= [=wire saw=(unit tang)]
^- (quip move _this)
?^ saw
[((slog u.saw) ~) this]
[~ this]
::
:: +poke-handle-http-cancel: received when a connection was killed
::
++ poke-handle-http-cancel
|= =inbound-request:eyre
^- (quip move _this)
:: the only long lived connections we keep state about are the stream ones.
::
[~ this]
::
++ poke-noun
|= a=*
^- (quip move _this)
~& poke+a
[~ this]
::
--