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{-# LANGUAGE OverloadedStrings, ScopedTypeVariables, DeriveDataTypeable, RecordWildCards #-}
module Blog where
import Control.Monad (when, unless)
import Data.Data (Data, Typeable)
import Data.List (intersperse)
import Data.Monoid (mempty)
import Data.Text (Text)
import qualified Data.Text as T
import Data.Time
import Network.Captcha.ReCaptcha
import System.Locale (defaultTimeLocale)
import Text.Blaze (toValue, preEscapedText, preEscapedString)
import Text.Blaze.Html5 (Html, (!), a, form, input, p, toHtml, label)
import Text.Blaze.Html5.Attributes (action, enctype, href, name, size, type_, value)
import qualified Text.Blaze.Html5 as H
import qualified Text.Blaze.Html5.Attributes as A
import Text.XHtml.Strict (showHtmlFragment)
import Locales
import BlogDB
-- custom list functions
intersperse' :: a -> [a] -> [a]
intersperse' sep l = sep : intersperse sep l
replace :: Eq a => a -> a -> [a] -> [a]
replace x y = map (\z -> if z == x then y else z)
-- javascript and others
captcha :: Html
captcha = H.div ! A.class_ "cCaptcha" $
do H.script ! A.src "http://api.recaptcha.net/challenge?k=6LfQXccSAAAAAIjKm26XlFnBMAgvaKlOAjVWEEnM" ! A.type_ "text/javascript" $ ""
H.noscript $ H.iframe ! A.src "http://api.recaptcha.net/noscript?k=6LfQXccSAAAAAIjKm26XlFnBMAgvaKlOAjVWEEnM" ! A.height "300" !
A.width "500" ! A.seamless "" $ do
H.br
H.textarea ! A.name "recaptcha_challenge_field" ! A.rows "3" ! A.cols "40" $ ""
H.input ! A.type_ "hidden" ! A.name "recaptcha_response_field" ! A.value "manual_challenge"
captchaOptions :: BlogLang -> Html
captchaOptions lang = H.script ! A.type_ "text/javascript" $ toHtml $
T.concat ["var RecaptchaOptions = { theme: 'clean', lang: '", showLangText lang, "'};"]
analytics :: Text
analytics = T.pack $ unlines ["<script type=\"text/javascript\">"
," var _gaq = _gaq || [];"
," _gaq.push(['_setAccount', 'UA-26042394-1']);"
," _gaq.push(['_trackPageview']);"
," (function() {"
," var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;"
," ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';"
," var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);"
," })();"
,"</script>"]
-- blog HTML
blogTemplate :: BlogLang -> Text -> Html -> Html
blogTemplate lang t_append body = H.docTypeHtml $ do --add body
H.head $ do
H.title $ (toHtml $ blogTitle lang t_append)
H.link ! A.rel "alternate" ! A.type_ "application/rss+xml" ! A.title "RSS-Feed" ! A.href (toValue feedURL)
H.link ! A.rel "stylesheet" ! A.type_ "text/css" ! A.href "/static/blogv33.css" ! A.media "all"
--H.link ! A.rel "stylesheet" ! A.type_ "text/css" ! A.href "/res/blogstyle.css" ! A.media "all"
H.meta ! A.httpEquiv "content-type" ! A.content "text/html;charset=UTF-8"
--H.style ! A.type_ "text/css" ! A.title "iOS iMessage" ! A.media "screen and (max-device-width: 1024px)" $ "#cosx{display:none;}"
preEscapedText analytics
H.body $ do
H.div ! A.class_ "header" $ do
H.a ! A.class_ "btitle" ! A.href (toValue $ "/" ++ show lang) $
toHtml $ blogTitle lang ""
H.p ! A.style "clear: both;" $ do
H.span ! A.class_ "contacts" ! A.id "cosx" $ contactInfo iMessage
-- H.span ! A.id "cios" ! A.style "display:none;" $ H.b $ contactInfo "sms:tazjin@me.com"
H.span ! A.class_ "righttext" $ preEscapedText $ rightText lang
H.div ! A.class_ "middle" $ do
body
H.div ! A.class_ "footer" $ do
showFooter lang $ T.pack version
H.div ! A.class_ "centerbox" $
H.span ! A.style "font-size: 17px; font-family: Helvetica;" $ "ಠ_ಠ"
--H.img ! A.src "http://cl.ly/F9m4/idiots.png" ! A.alt ""
where
contactInfo (imu :: Text) = do
toHtml $ contactText lang
H.a ! A.class_ "link" ! A.href (toValue mailTo) $ "Mail"
", "
H.a ! A.class_ "link" ! A.href (toValue twitter) ! A.target "_blank" $ "Twitter"
toHtml $ orText lang
H.a ! A.class_ "link" ! A.href (toValue imu) ! A.target "_blank" $ "iMessage"
"."
feedURL = "/" ++ show lang ++ "/rss.xml"
renderEntries :: Bool -> [Entry] -> Text -> Maybe Html -> Html
renderEntries showAll entries topText footerLinks = do
H.span ! A.class_ "innerTitle" $ toHtml topText
H.div ! A.class_ "innerContainer" $ do
H.ul $ if' showAll
(mapM_ showEntry entries)
(mapM_ showEntry $ take 6 entries)
getFooterLinks footerLinks
where
showEntry :: Entry -> Html
showEntry e = H.li $ do
entryLink e $ T.pack $ show(length $ comments e)
preEscapedText $ T.append " " $ btext e
when ( mtext e /= T.empty ) $
H.p $ entryLink e $ readMore $ lang e
unless ( mtext e /= T.empty ) $
preEscapedText "<br> "
entryLink :: Entry -> Text -> Html
entryLink e s = H.a ! A.href (toValue $ concat $ intersperse' "/" $ linkElems e) $
toHtml (T.concat ["[", s, "]"])
linkElems e = [show(lang e), show $ entryId e]
getFooterLinks (Just h) = h
getFooterLinks Nothing = mempty
renderEntry :: Entry -> Html
renderEntry (Entry{..}) = do
H.span ! A.class_ "innerTitle" $ toHtml $ title
H.span ! A.class_ "righttext" $ H.i $ toHtml $ woText
H.div ! A.class_ "innerContainer" $ do
H.article $ H.ul $ H.li $ do
preEscapedText $ btext
H.p $ preEscapedText $ mtext
H.div ! A.class_ "innerBoxComments" $ do
H.div ! A.class_ "cHead" $ toHtml $ cHead lang -- ! A.style "font-size:large;font-weight:bold;"
H.ul $ renderComments comments lang
renderCommentBox lang entryId
where
woText = flip T.append author $ T.pack $ (formatTime defaultTimeLocale (eTimeFormat lang) edate)
renderCommentBox :: BlogLang -> EntryId -> Html
renderCommentBox cLang cId = do
H.div ! A.class_ "cHead" $ toHtml $ cwHead cLang
captchaOptions cLang
H.form ! A.method "POST" ! A.action (toValue $ "/" ++ (show cLang) ++ "/postcomment/" ++ show cId) $ do
H.p $ H.input ! A.name "cname" ! A.placeholder "Name" ! A.class_ "cInput"
H.p $ H.label $ H.textarea ! A.name "ctext" ! A.cols "50" ! A.rows "13" ! A.class_ "cInput" !
A.placeholder (toValue $ cTextPlaceholder cLang) $ mempty
H.p $ H.label $ captcha
H.p $ H.input ! A.class_ "cInput" ! A.style "width: 120px;" ! A.type_ "submit" ! A.value (toValue $ cSend cLang)
renderComments :: [Comment] -> BlogLang -> Html
renderComments [] lang = H.li $ toHtml $ noComments lang
renderComments comments lang = mapM_ showComment comments
where
showComment :: Comment -> Html
showComment (Comment{..}) = H.li $ do
H.i $ toHtml $ T.append cauthor ": "
preEscapedText ctext
H.p ! A.class_ "tt" $ toHtml $ timeString cdate
timeString t = formatTime defaultTimeLocale (cTimeFormat lang) t
showLinks :: Maybe Int -> BlogLang -> Html
showLinks (Just i) lang
| ( i > 1) = H.div ! A.class_ "centerbox" $ do
H.a ! A.href (toValue $ "/" ++ show lang ++ "/?page=" ++ show (i+1)) $
toHtml $ backText lang
toHtml (" -- " :: Text)
H.a ! A.href (toValue $ "/" ++ show lang ++ "/?page=" ++ show (i-1)) $
toHtml $ nextText lang
| ( i <= 1 ) = showLinks Nothing lang
showLinks Nothing lang = H.div ! A.class_ "centerbox" $
H.a ! A.href (toValue $ "/" ++ show lang ++ "/?page=2") $
toHtml $ backText lang
showFooter :: BlogLang -> Text -> Html
showFooter l v = H.div ! A.class_ "rightbox" ! A.style "text-align:right;" $ do
toHtml ("Proudly made with " :: Text)
H.a ! A.class_ "link" ! A.href "http://haskell.org" $ "Haskell"
toHtml (", " :: Text)
H.a ! A.class_ "link" ! A.href "http://hackage.haskell.org/package/acid-state-0.6.3" $ "Acid-State"
toHtml (" and without PHP, Java, Perl, MySQL and Python." :: Text)
H.br
H.a ! A.class_ "link" ! A.href (toValue repoURL) $ toHtml $ T.append "Version " v
preEscapedText " "
H.a ! A.class_ "link" ! A.href "/notice" $ toHtml $ noticeText l
showSiteNotice :: Html
showSiteNotice = H.docTypeHtml $ do
H.title $ "Impressum"
H.h2 $ preEscapedText "Impressum und <a alt=\"Verantwortlich im Sinne des Presserechtes\">ViSdP</a>"
H.i $ "[German law demands this]"
H.br
H.p $ do
toHtml ("Vincent Ambo" :: Text)
H.br
toHtml ("Benfleetstr. 8" :: Text)
H.br
toHtml ("50858 Köln" :: Text)
H.p $ H.a ! A.href "/" ! A.style "color:black" $ "Back"
{- Administration pages -}
adminTemplate :: Text -> Html -> Html
adminTemplate title body = H.docTypeHtml $ do
H.head $ do
H.link ! A.rel "stylesheet" ! A.type_ "text/css" ! A.href "/static/admin.css" ! A.media "all"
H.meta ! A.httpEquiv "content-type" ! A.content "text/html;charset=UTF-8"
H.title $ toHtml $ T.append "TazBlog Admin: " title
H.body
body
adminLogin :: Html
adminLogin = adminTemplate "Login" $
H.div ! A.class_ "loginBox" $ do
H.div ! A.class_ "loginBoxTop" $ "TazBlog Admin: Login"
H.div ! A.class_ "loginBoxMiddle" $ H.form ! A.action "/dologin" ! A.method "post" $ do
H.p $ "Account ID"
H.p $ H.input ! A.type_ "text" ! A.style "font-size: 2;"
! A.name "account" -- ! A.value "tazjin" ! A.readonly "1"
H.p $ "Passwort"
H.p $ H.input ! A.type_ "password" ! A.style "font-size: 2;" ! A.name "password"
H.p $ H.input ! A.alt "Anmelden" ! A.type_ "image" ! A.src "/static/signin.gif"
adminIndex :: Text -> Html
adminIndex sUser = adminTemplate "Index" $
H.div ! A.style "float: center;" $
H.form ! A.action "/admin/postentry" ! A.method "POST" $ do
H.table $ do
H.tr $ do H.td $ "Titel:"
H.td $ H.input ! A.type_ "text" ! A.name "title"
H.tr $ do H.td $ "Sprache:"
H.td $ H.select ! A.name "lang" $ do
H.option ! A.value "de" $ "Deutsch"
H.option ! A.value "en" $ "Englisch"
H.tr $ do H.td ! A.style "vertical-align: top;" $ "Text:"
H.td $ H.textarea ! A.name "btext" ! A.cols "100" ! A.rows "15" $ mempty
H.tr $ do H.td ! A.style "vertical-align: top;" $ "Mehr Text:"
H.td $ H.textarea ! A.name "mtext" ! A.cols "100" ! A.rows "15" $ mempty
H.input ! A.type_ "hidden" ! A.name "author" ! A.value (toValue sUser)
H.input ! A.style "margin-left: 20px" ! A.type_ "submit" ! A.value "Absenden"
adminFooter
adminFooter :: Html
adminFooter = H.p $ do
preEscapedText "<a href=/>Startseite</a> -- Entrylist: <a href=/admin/entrylist/de>DE</a>"
preEscapedText " & <a href=/admin/entrylist/en>EN</a> -- <a href=#>Backup</a> (NYI)"
adminEntryList :: [Entry] -> Html
adminEntryList entries = adminTemplate "Entrylist" $
H.div ! A.style "float: center;" $ do
H.table $ do
mapM_ showEntryItem entries
adminFooter
where
showEntryItem :: Entry -> Html
showEntryItem (Entry{..}) = H.tr $ do
H.td $ H.a ! A.href (toValue $ "/admin/edit/" ++ show entryId) $ toHtml title
H.td $ toHtml $ formatTime defaultTimeLocale "[On %D at %H:%M]" edate
editPage :: Entry -> Html
editPage (Entry{..}) = adminTemplate "Index" $
H.div ! A.style "float: center;" $
H.form ! A.action "/admin/updateentry" ! A.method "POST" $ do
H.table $ do
H.tr $ do H.td $ "Titel:"
H.td $ H.input ! A.type_ "text" ! A.name "title" ! A.value (toValue title)
H.tr $ do H.td ! A.style "vertical-align: top;" $ "Text:"
H.td $ H.textarea ! A.name "btext" ! A.cols "100" ! A.rows "15" $ toHtml btext
H.tr $ do H.td ! A.style "vertical-align: top;" $ "Mehr Text:"
H.td $ H.textarea ! A.name "mtext" ! A.cols "100" ! A.rows "15" $ toHtml mtext
H.input ! A.type_ "hidden" ! A.name "eid" ! A.value (toValue $ unEntryId entryId)
H.input ! A.style "margin-left: 20px" ! A.type_ "submit" ! A.value "Absenden"
H.p $ do preEscapedText "<a href=/>Startseite</a> -- Entrylist: <a href=/admin/entrylist/de>DE</a>"
preEscapedText " & <a href=/admin/entrylist/en>EN</a> -- <a href=#>Backup</a> (NYI)"
-- Error pages
showError :: BlogError -> BlogLang -> Html
showError NotFound l = blogTemplate l (T.append ": " $ notFoundTitle l) $ do
H.span ! A.class_ "innerTitle" $ toHtml $ notFoundTitle l
H.div ! A.class_ "innerContainer" $ do
H.p ! A.class_ "notFoundFace" $ toHtml (":'(" :: Text)
H.p ! A.class_ "notFoundText" $ toHtml $ notFoundText l
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