64 lines
2.4 KiB
Racket
64 lines
2.4 KiB
Racket
#lang racket/base
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(require racket/list
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racket/match
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(prefix-in easy: net/http-easy)
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memo
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"static-data.rkt"
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"url-utils.rkt"
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"xexpr-utils.rkt")
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(provide
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(struct-out siteinfo^)
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(struct-out license^)
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(struct-out head-data^)
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siteinfo-fetch
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siteinfo-default
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license-default
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head-data-getter
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head-data-default)
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(struct siteinfo^ (sitename basepage license) #:transparent)
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(struct license^ (text url) #:transparent)
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(struct head-data^ (body-class icon-url) #:transparent)
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(define license-default (license^ "CC-BY-SA" "https://www.fandom.com/licensing"))
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(define siteinfo-default (siteinfo^ "Test Wiki" "Main_Page" license-default))
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(define head-data-default (head-data^ "skin-fandomdesktop" (get-static-url "breezewiki-icon.svg")))
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(define/memoize (siteinfo-fetch wikiname) #:hash hash
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(define dest-url
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(format "https://~a.fandom.com/api.php?~a"
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wikiname
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(params->query '(("action" . "query")
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("meta" . "siteinfo")
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("siprop" . "general|rightsinfo")
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("format" . "json")
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("formatversion" . "2")))))
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(log-outgoing dest-url)
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(define res (easy:get dest-url))
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(define data (easy:response-json res))
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(siteinfo^ (jp "/query/general/sitename" data)
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(second (regexp-match #rx"/wiki/(.*)" (jp "/query/general/base" data)))
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(license^ (jp "/query/rightsinfo/text" data)
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(jp "/query/rightsinfo/url" data))))
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(define/memoize (head-data-getter wikiname) #:hash hash
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;; data will be stored here, can be referenced by the memoized closure
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(define this-data head-data-default)
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;; returns the getter
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(λ ([res-in #f])
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(when res-in
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;; when actual information is provided, parse it into the struct and store it for the future
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(define head-html (jp "/parse/headhtml" res-in ""))
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(define data
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(head-data^
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(match (regexp-match #rx"<body [^>]*class=\"([^\"]*)" head-html)
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[(list _ classes) classes]
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[_ (head-data^-body-class head-data-default)])
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(match (regexp-match #rx"<link rel=\"(?:shortcut )?icon\" href=\"([^\"]*)" head-html)
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[(list _ icon-url) icon-url]
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[_ (head-data^-icon-url head-data-default)])))
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(set! this-data data))
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;; then no matter what, return the best information we have so far
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this-data))
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