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;;; Copyright © 2019 - 2023 Jakob L. Kreuze <zerodaysfordays@sdf.org>
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU General Public License as
;;; published by the Free Software Foundation; either version 3 of the
;;; License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see
;;; <http://www.gnu.org/licenses/>.
(define-module (jakob dynamic capabilities comment-form)
#:use-module (gcrypt base64)
#:use-module (haunt html)
#:use-module (ice-9 match)
#:use-module (jakob builder blog)
#:use-module (jakob dynamic captcha)
#:use-module (jakob dynamic util)
#:use-module (jakob theme)
#:use-module (jakob utils sxml)
#:use-module (json)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (web request)
#:use-module (web response)
#:use-module (web uri)
#:export (render-static-comment-form
render-dynamic-comment-form
get-comment-form))
(define (render-comment-field)
`((div (@ (class "form-row"))
(input (@ (type "text")
(id "name")
(name "name")
(required #t)
(aria-label "Name")
(placeholder "Name")))
(input (@ (type "text")
(id "subject")
(name "subject")
(aria-label "Subject")
(placeholder "Subject (Optional)"))))
(div (@ (class "form-row"))
(input (@ (type "text")
(id "url")
(name "url")
(aria-label "Website URL")
(placeholder "Website (https://...)"))))
(textarea (@ (id "coment")
(name "comment")
(placeholder "Write your comment here...")
(rows "4")
(required "")
(aria-label "Comment body")))))
(define* (render-comment-captcha-field #:optional (captcha-id "") captcha-image
#:key hidden)
`((div (@ (id "captcha-container"))
(div (@ (id "captcha-image-wrapper")))
(div (@ (id "captcha-input-wrapper"))
(input (@ (type "text")
(id "captcha-solution")
(name "captcha")
(required "true")))
(button (@ (id "captcha-challenge-trigger")
(type "button"))
"Fetch Captcha"))
(input (@ (autocomplete "off") (type "text") (hidden #t)
(id "captcha-id") (name "captcha-id") (value ,captcha-id)))
(input (@ (autocomplete "off") (type "text") (hidden #t)
(id "captcha-alt") (name "captcha-alt")))
(input (@ (autocomplete "off") (type "text") (hidden #t)
(id "captcha-alt-id") (name "captcha-alt-id")))
(div (@ (id "captcha-alternative-wrapper")
(hidden "true"))
(p "If you can't solve this integral, click this button to run an
alternative proof-of-work captcha.")
(button (@ (type "button")
(id "proof-of-work-trigger")
(aria-label "Automatic Captcha Button"))
"Calculate Proof-of-Work For Me")))))
(define (render-static-comment-form slug captcha-id captcha-image)
`(div (@ (id "comment-form"))
(h1 "Comment form")
(form (@ (id "comment-input") (action "/api/comment") (method "post"))
(input (@ (type "text") (name "slug") (hidden #t) (value ,slug)))
,(render-comment-field)
,(render-comment-captcha-field captcha-id captcha-image))
,(script "proof-of-work.js")))
(define (render-dynamic-comment-form slug)
`(form (@ (id "comment-form") (action "/api/comment")
(method "post") (hidden "true"))
;; Hidden fields.
(input (@ (autocomplete "off") (type "text") (hidden #t)
(name "slug") (value ,slug)))
(input (@ (autocomplete "off") (type "text") (hidden #t)
(name "reply-to") (id "reply-to") (value "")))
,@(render-comment-field)
,@(render-comment-captcha-field)
(button (@ (type "submit") (style "margin-top: 10px;"))
"Submit Comment")
,(script "dynamic-comment-form.js")
,(script "proof-of-work.js")))
(define (get-comment-form request body)
(let-values (((captcha-id captcha-image) (new-captcha!)))
(let* ((path-encoded (uri-path (request-uri request)))
(path (split-and-decode-uri-path path-encoded))
(slug (last path))
(form (render-static-comment-form slug captcha-id captcha-image)))
(values '((content-type . (text/html)))
(sxml->html-string
(theme #:content form #:title "Comment prompt"))))))
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