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(define-module (plugin captcha-booru)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26) ;partial application
#:use-module (ice-9 regex)
#:use-module (sxml-tolerant simple)
#:use-module (crypto)
#:use-module (utils)
#:use-module (web client)
#:use-module (webserver-utils)
#:use-module (html)
#:use-module (download)
#:use-module (plugin captcha-interface)
#:export (captcha-touhou
captcha-touhou-no-sample))
(define all-touhous
'("alice_margatroid" "shameimaru_aya" "tsukumo_benben" "hijiri_byakuren" "chen"
"cirno" "clownpiece" "yagokoro_eirin" "elis_(touhou)" "ellen_(touhou)"
"elly" "flandre_scarlet" "fujiwara_no_mokou" "gengetsu" "genjii" ;; "goliath_doll"
"hata_no_kokoro" "himekaidou_hatate" "hecatia_lapislazuli" "hieda_no_akyu"
"kagiyama_hina" "hong_meiling" ;; "hourai_doll"
"kumoi_ichirin" "nagae_iku" "junko_(touhou)" "imaizumi_kagerou"
"houraisan_kaguya" "anaberal_kana" "yasaka_kanako" "ibaraki_kasen"
"keine_kamishirasawa" "kikuri_(touhou)" "kisume" "koakuma" "tatara_kogasa"
"komeiji_koishi" "onozuka_komachi" "konngara" "motoori_kosuzu" "kotohime"
"kurumi_(touhou)" "kasodani_kyouko" "layla_prismriver" "letty_whiterock"
"lily_white" "louise_(touhou)" "luna_child" "lunasa_prismriver"
"lyrica_prismriver" "mai_(touhou)" "futatsuiwa_mamizou" "maribel_hearn"
"kirisame_marisa" "medicine_melancholy" "meira" "merlin_prismriver" "mima"
"murasa_minamitsu" "aki_minoriko" "mishaguji" "inubashiri_momiji"
"mononobe_no_futo" "mugetsu" ;; "hijiri_myouren"
"mystia_lorelei" "nazrin" "kawashiro_nitori" "orange_(touhou)"
"mizuhashi_parsee" "patchouli_knowledge" "horikawa_raiko" "yakumo_ran"
"hakurei_reimu" "remilia_scarlet" "usami_renko" "rika_(touhou)"
"asakura_rikako" "kaenbyou_rin" "satsuki_rin" "ringo_(touhou)" ;; "rinnosuke_morichika"
"ruukoto" "kishin_sagume" "izayoi_sakuya" "kochiya_sanae" "sara_(touhou)"
"sariel" "komeiji_satori" "kaku_seiga" "kijin_seija" "seiran_(touhou)"
"sekibanki" ;; "shanghai_doll"
"shiki_eiki" "shingyoku" "shinki" "shinmyoumaru_sukuna"
"aki_shizuha" "toramaru_shou" "soga_no_tojiko" "sokrates_(touhou)"
"star_sapphire" "ibuki_suika" "usami_sumireko" "sunny_milk" "moriya_suwako"
"hinanawi_tenshi" "inaba_tewi" "tokiko_(touhou)" "toyosatomimi_no_miko"
"unzan" "reiuji_utsuho" "wakasagihime" "watatsuki_no_toyohime"
"watatsuki_no_yorihime" "wriggle_nightbug" "kurodani_yamame"
"tsukumo_yatsuhashi" "miyako_yoshika" ;; "konpaku_youki"
"konpaku_youmu" "yakumo_yukari" "yuki_(touhou)" "yumeko" "okazaki_yumemi"
"yuugenmagan" "hoshiguma_yuugi" "kazami_yuuka" "saigyouji_yuyuko"))
(define store-filepath "/var/www/captcha/private/booru-store.alist")
(define protocol "http:") ;TODO https
(define *store* (or (read-file store-filepath) '()))
(define* (populate #:optional (url "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=0&tags=1girl%20touhou"))
(define store (or (read-file store-filepath) '()))
(call-with-values (lambda () (http-get url))
(lambda (response body)
(define page (xml->sxml body))
(define post-tags (html-match page '(post)))
(define new-data (delete-duplicates
(append (filter identity (map handle-post post-tags))
store)))
(write-file store-filepath new-data)
(set! *store* new-data))))
(define (handle-post post)
(define tags (cadr (html-match1 post '(tags))))
(define preview-url (cadr (html-match1 post '(preview_url))))
(define original-url (cadr (html-match1 post '(file_url))))
(define (has-tag? tag)
(string-match (string-append "\\b" tag "\\b") tags))
(define known-touhou
(and (not (has-tag? "cosplay"))
(not (has-tag? "comic"))
(find (lambda (touhou)
(has-tag? touhou)) all-touhous)))
(if known-touhou
(download-preview preview-url original-url tags known-touhou)
#f))
(define (download-preview url original-url tags main-touhou)
(define filename (basename url))
;; TODO (get-setting 'download-path)
(and (download (string-append "/var/www/captcha/file/" filename)
(string-append protocol url))
`((main-touhou . ,main-touhou)
(filename . ,filename)
(url . ,url)
(original-url . ,original-url)
(tags . ,tags))))
(define (generate-challenge)
(define pool (map-n-times (lambda (i) (pick-random *store*)) 9))
(define chosen-touhou (pick-random pool))
(define sample (or (find (lambda (touhou)
(and (not (eq? touhou chosen-touhou))
(equal? (assoc-ref touhou 'main-touhou)
(assoc-ref chosen-touhou 'main-touhou))))
*store*)
;; don't mind duplicates if there is only one entry in the store
chosen-touhou))
(define expected (map (lambda (touhou)
(equal? (assoc-ref touhou 'main-touhou)
(assoc-ref chosen-touhou 'main-touhou)))
pool))
`((sample . ,sample)
(pool . ,pool)
(expected . ,expected)
(id . ,(random-string-in-collection 15 char-collection-alpha-numeric))))
(define (choice-name challenge i)
(string-append (assoc-ref challenge 'id) "-" (number->string i)))
(define* (render-challenge challenge #:optional (show-sample #t))
(define sample (assoc-ref challenge 'sample))
(define pool (assoc-ref challenge 'pool))
(define touhou-name (string-join
(map (lambda (word)
(string-upcase word 0 1))
(string-split (assoc-ref sample 'main-touhou) #\_))
" "))
(define i 0)
`((style "
.capcha.touhou-intro {width: 300px; 76px; background: #f9f9f9; border-radius: 3px;}
.capcha-touhou-intro-text {margin-bottom: 3px;}
.captcha.touhou {width:400px; border: 1px solid #ccc; font-family: Roboto,helvetica,arial,sans-serif;
box-shadow: rgba(0, 0, 0, 0.2) 2px 2px 3px;}
.captcha.touhou .sample-row {display: flex; padding-left: 12px; padding-right: 12px; padding-top: 12px;}
.captcha.touhou .sample-explain-text {padding-top: 14px;}
.captcha.touhou label {position: relative; display:inline-block;}
.captcha.touhou label input {position: absolute; top: 3px; left: 3px; transition: all 0.1s;}
.captcha.touhou label img { transition: all 0.1s;}
.captcha.touhou .pick-images {padding-left: 12px; padding-right: 12px; padding-bottom: 14px; padding-top: 16px;}
.captcha.touhou .action-buttons {display:flex; border-top: 1px solid #dfdfdf; padding: 20px; padding-top: 15px;
justify-content: space-between;}
.captcha.touhou .verify {background: #4a90e2; color: #fffffa; border: 0; border-radius: 2px;
cursor: pointer; font-size: 12px; font-weight: 500; height: 34px; line-height: 34px;
padding: 0px 10px 0px 10px; text-align: center; text-transform: uppercase; }
.captcha.touhou .misc-buttons button {background: none; border: none; font-size: 20px; padding-top: 6px}
.captcha.touhou input { background: none; -webkit-appearance: none; -moz-appearance: none; -o-appearance: none; appearance: none; outline:0;}
.captcha.touhou input:checked { background: #4480f7; width: 20px; height: 20px; appearance: none; border-radius: 50px; border: 5px solid #4480f7;
}
.captcha.touhou input:checked:after { content: '\\2714'; color: white; font-size: 20px; position: absolute; top: -6px; left: -2px; }
.captcha.touhou input:checked ~ img { width:100px; height:100px; padding: 12px;}
")
(p (@ (class "capcha-touhou-intro-text"))
"Please proof that you are sufficently versed in touhous:")
(div (@ (class "captcha touhou"))
(div (@ (class "sample-row"))
(div (@ (class "sample-explain-text"))
,(string-append "Check all images of " touhou-name ".")
,(if show-sample
(string-append " A sample image of " touhou-name
" is on the right.")
'()))
,(if show-sample
`(img (@ (alt ,touhou-name)
(width "100")
(height "100")
(src ,(string-append
"/file/"
(assoc-ref sample 'filename)))))
'()))
(div (@ (class "pick-images"))
,@(map (lambda (touhou)
(define result
`(label
(input (@ (name ,(choice-name challenge i))
(value "y")
(type "checkbox")))
(img (@ (alt "touhou for captcha")
(width "124")
(height "124")
(src ,(string-append
"/file/" (assoc-ref touhou 'filename)))))))
(set! i (+ 1 i))
result)
pool))
(div (@ (class "action-buttons"))
(div (@ (class "misc-buttons"))
(button (@ (class "refresh")) "↻")
(button (@ (class "audio")) "🎧")
(button (@ (class "info")) "🛈"))
(button (@ (class "verify")) "Verify")))))
(define (validate-input challenge get-form-field)
(define i 0)
(define (check i)
(equal? "y" (get-form-field (choice-name challenge i))))
(not (find (lambda (x) (eq? 'wrong x))
(map (lambda (expect)
(define checked (check i))
(define result (or (and (eqv? #f expect) (not checked))
(and (eqv? #t expect) checked)
'wrong))
(set! i (+ 1 i))
result)
(assoc-ref challenge 'expected)))))
(define captcha-touhou
(make-captcha-plugin 'captcha-touhou
generate-challenge
render-challenge
validate-input))
(define captcha-touhou-no-sample
(make-captcha-plugin 'captcha-touhou-no-sample
generate-challenge
(cut render-challenge <> #f)
validate-input))
;;; run with guile -L . -e populate-touhou ./plugin/captcha-booru
(define (populate-touhou)
(populate)
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=1&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=2&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=3&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=4&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=5&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=6&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=7&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=8&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=9&tags=1girl%20touhou")
(populate "http://safebooru.org//index.php?page=dapi&s=post&q=index&pid=10&tags=1girl%20touhou"))