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switch to hash representation, closes #3; add timestamp

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This commit is contained in:
Stephen Chang 2013-10-01 23:12:40 -04:00
parent 5c1c10c0c6
commit 06b0e4762b
2 changed files with 26 additions and 12 deletions
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9
pasterack-utils.rkt
View File

@ -1,7 +1,16 @@
#lang racket/base
(require racket/date racket/match)
(provide (all-defined-out))
(define ++ string-append)
(define (mk-rand-str)
(bytes->string/utf-8 (list->bytes (for/list ([n 4]) (+ 49 (random 9))))))
(define (get-time/iso8601)
(parameterize ([date-display-format 'iso-8601])
(match-define (list _ date time)
(regexp-match
#px"(\\d\\d\\d\\d-\\d\\d-\\d\\d)[MTWFS](\\d\\d:\\d\\d:\\d\\d)"
(date->string (current-date) #t)))
(++ date " " time)))

29
pasterack.rkt
View File

@ -31,12 +31,12 @@
(define NUM-RECENT-PASTES 10)
(define recent-pastes (empty-ring-buffer NUM-RECENT-PASTES))
;; initialize buffer with some pastes
(ring-buffer-push! recent-pastes "9842")
(ring-buffer-push! recent-pastes "4548")
(ring-buffer-push! recent-pastes "9921")
(ring-buffer-push! recent-pastes "9937")
(ring-buffer-push! recent-pastes "1192")
(ring-buffer-push! recent-pastes "9111")
(ring-buffer-push! recent-pastes "9965")
(ring-buffer-push! recent-pastes "3542")
(ring-buffer-push! recent-pastes "3414")
(ring-buffer-push! recent-pastes "5237")
(ring-buffer-push! recent-pastes "9647")
(ring-buffer-push! recent-pastes "5434")
;; returns output file name (as path), or #f on fail
(define (write-codeblock-scrbl-file code)
@ -139,7 +139,9 @@
(define eval-html-str (and html-res (generate-eval-html pasted-code)))
(define paste-url (mk-paste-url paste-num))
(ring-buffer-push! recent-pastes paste-num)
(SET/list paste-num (list paste-html-str (or eval-html-str "")))
(SET/hash paste-num (hash 'code paste-html-str
'eval (or eval-html-str "")
'time (get-time/iso8601)))
(response/xexpr
`(html ()
(head ()
@ -160,16 +162,18 @@
(with-input-from-bytes html-bytes read-xml))))))))
(define (serve-paste request pastenum)
(define retrieved-paste (GET/list pastenum))
(define retrieved-paste-hash (GET/hash pastenum #:map-key bytes->symbol))
(cond
[(null? retrieved-paste)
[(equal? (hash) retrieved-paste-hash)
(response/xexpr
`(html() (head ())
(body ()
,(format "Paste # ~a doesn't exist." pastenum) (br)
,(mk-link pastebin-url "Go Back"))))]
[else
(match-define (list code-html eval-html) (GET/list pastenum))
(match-define (hash-table ('code code-html)
('eval eval-html)
('time time-str)) retrieved-paste-hash)
(define code-main-div (get-main-div code-html))
(define eval-main-div (get-main-div eval-html))
(define paste-url (string-append paste-url-base pastenum))
@ -187,8 +191,9 @@
(title "default") (type "text/css")))
(script ((src "/scribble-common.js") (type "text/javascript"))))
(body ()
,(mk-link pastebin-url "PasteRack") (br)
" Paste # " (a ((href ,paste-url)) ,pastenum) (br)
(div () ,(mk-link pastebin-url "Paste")
" # " (a ((href ,paste-url)) ,pastenum) (br)
(small ,(bytes->string/utf-8 time-str)) (br))
(div ((class "maincolumn"))
,(match code-main-div
[`(div ((class "main")) ,ver ,body)