115 lines
2.9 KiB
Factor
115 lines
2.9 KiB
Factor
IN: furnace
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USING: embedded generic arrays namespaces prettyprint io
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sequences words kernel httpd html errors hashtables http
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callback-responder ;
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SYMBOL: default-action
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SYMBOL: template-path
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: define-action ( word params -- )
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over t "action" set-word-prop
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"action-params" set-word-prop ;
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: define-redirect ( word quot -- )
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"action-redirect" set-word-prop ;
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: responder-vocab ( name -- vocab )
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"furnace:" swap append ;
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: lookup-action ( name webapp -- word )
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responder-vocab lookup dup [
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dup "action" word-prop [ drop f ] unless
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] when ;
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: current-action ( url -- word/f )
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dup empty? [ drop default-action get ] when
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"responder" get lookup-action ;
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PREDICATE: word action "action" word-prop ;
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: quot>query ( seq action -- hash )
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"action-params" word-prop
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[ first swap 2array ] 2map alist>hash ;
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: action-link ( query action -- url )
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[
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"/responder/" % "responder" get % "/" %
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word-name %
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] "" make swap build-url ;
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: action-call? ( args obj -- ? )
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action? >r [ word? not ] all? r> and ;
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: quot-link ( quot -- url )
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1 swap cut* peek 2dup action-call? [
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[ quot>query ] keep action-link
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] [
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t register-html-callback
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] if ;
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: render-link ( quot name -- )
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<a swap quot-link =href a> write </a> ;
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: query>quot ( params action -- seq )
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"action-params" word-prop
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[ dup first rot hash [ ] [ second ] ?if ] map-with ;
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: perform-redirect ( action -- )
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"action-redirect" word-prop [ quot-link redirect ] when* ;
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: call-action ( params action -- )
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[ query>quot ] keep [ add >quotation call ] keep
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perform-redirect ;
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: service-request ( url params -- )
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current-action [
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[ call-action ] [ <pre> print-error </pre> ] recover
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] [
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"404 no such action: " "argument" get append httpd-error
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] if* ;
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: service-get ( url -- ) "query" get swap service-request ;
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: service-post ( url -- ) "response" get swap service-request ;
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: explode-tuple ( tuple -- )
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dup tuple>array 2 tail swap class "slot-names" word-prop
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[ set ] 2each ;
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: call-template ( model template -- )
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[
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>r [ explode-tuple ] when* r>
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".fhtml" append resource-path run-embedded-file
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] with-scope ;
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TUPLE: component model template ;
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TUPLE: page title root ;
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C: page ( title model template -- page )
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[ >r <component> r> set-page-root ] keep
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[ set-page-title ] keep ;
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: render-template ( model template -- )
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template-path get swap path+ call-template ;
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: render-component
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dup component-model swap component-template
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render-template ;
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: render-page ( title model template -- )
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serving-html
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<page> "contrib/furnace/page" call-template ;
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: web-app ( name default path -- )
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over responder-vocab create-vocab drop
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[
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template-path set
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default-action set
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"responder" set
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[ service-get ] "get" set
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[ service-post ] "post" set
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! [ service-head ] "head" set
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] make-responder ;
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