{-# LANGUAGE OverloadedStrings, ScopedTypeVariables, DeriveDataTypeable, TemplateHaskell, QuasiQuotes, RecordWildCards #-} module Blog where import Control.Monad (when, unless) import Data.Data (Data, Typeable) import Data.List (intersperse) import Data.Maybe (fromJust) import Data.Monoid (mempty) import Data.Text (Text, append, pack, empty) import Data.Text.Lazy (fromStrict) import Data.Time import Network.Captcha.ReCaptcha import System.Locale (defaultTimeLocale) import Text.Blaze.Html (preEscapedToHtml) import Text.Hamlet import Text.Lucius import Text.Markdown import Locales import BlogDB import qualified Data.Text as T -- 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) show' :: Show a => a -> Text show' = pack . show -- |After this time all entries are Markdown markdownCutoff :: UTCTime markdownCutoff = fromJust $ parseTime defaultTimeLocale "%s" "1367149834" data BlogURL = BlogURL -- blog CSS (admin is still static) stylesheetSource = $(luciusFile "res/blogstyle.lucius") blogStyle = renderCssUrl undefined stylesheetSource -- blog HTML blogTemplate :: BlogLang -> Text -> Html -> Html blogTemplate lang t_append body = [shamlet| $doctype 5 #{blogTitle lang t_append} <link rel="stylesheet" type="text/css" href="/static/blogv34.css" media="all"> <link rel="alternate" type="application/rss+xml" title="RSS-Feed" href=#{rssUrl}> <meta http-equiv="content-type" content="text/html;charset=UTF-8"> <body> <div class="header"> <a class="btitle" href=#{append "/" (show' lang)}>#{blogTitle lang empty} <p style="clear: both;"> <span class="contacts" id="cosx">^{contactInfo} <span class="righttext">^{preEscapedToHtml $ rightText lang} <div class="middle"> ^{body} <div class="footer"> ^{showFooter lang $ pack version} <div class="centerbox"> <span style="font-size:17px;font-family:Helvetica;">ಠ_ಠ |] where rssUrl = T.concat ["/", show' lang, "/rss.xml"] contactInfo = [shamlet| #{contactText lang} <a class="link" href=#{mailTo}>Mail #{orText lang} <a class="link" href=#{twitter} target="_blank">Twitter |] showFooter :: BlogLang -> Text -> Html showFooter l v = [shamlet| <div class="rightbox" style="text-align:right;"> Proudly made with # <a class="link" href="http://haskell.org">Haskell , # <a class="link" href="http://hackage.haskell.org/package/acid-state-0.6.3">Acid-State \ and without PHP, Java, Perl, MySQL and Python. <p> <a class="link" href=#{repoURL}>#{append "Version " v}   <a class="link" href="/notice">#{noticeText l} |] isEntryMarkdown :: Entry -> Bool isEntryMarkdown e = edate e > markdownCutoff renderEntryMarkdown :: Text -> Html renderEntryMarkdown = markdown def {msXssProtect = False} . fromStrict renderEntries :: Bool -> [Entry] -> Text -> Maybe Html -> Html renderEntries showAll entries topText footerLinks = [shamlet| <span class="innerTitle">#{topText} <div class="innerContainer"> <ul style="max-width:57em;"> $forall entry <- elist <li> $if (isEntryMarkdown entry) <a href=#{linkElems entry}>#{linkText $ length $ comments entry} <b>#{title entry} ^{renderEntryMarkdown $ append " " $ btext entry} $else <a href=#{linkElems entry}>#{linkText $ length $ comments entry} ^{preEscapedToHtml $ append " " $ btext entry} $if ((/=) (mtext entry) empty) <p><a href=#{linkElems entry}>#{readMore $ lang entry} $else <br>  $maybe links <- footerLinks ^{links} |] where elist = if' showAll entries (take 6 entries) linkElems Entry{..} = concat $ intersperse' "/" [show lang, show entryId] linkText n = T.concat ["[", show' n, "]"] showLinks :: Maybe Int -> BlogLang -> Html showLinks (Just i) lang = [shamlet| $if ((>) i 1) <div class="centerbox"> <a href=#{nLink $ succ i}>#{backText lang} \ -- # <a href=#{nLink $ pred i}>#{nextText lang} $elseif ((<=) i 1) ^{showLinks Nothing lang} |] where nLink page = T.concat ["/", show' lang, "/?page=", show' page] showLinks Nothing lang = [shamlet| <div class="centerbox"> <a href=#{nLink}>#{backText lang} |] where nLink = T.concat ["/", show' lang, "/?page=2"] renderEntry :: Entry -> Html renderEntry e@Entry{..} = [shamlet| <span class="innerTitle">#{title} <span class="righttext"> <i>#{woText} <div class="innerContainer"> <article> <ul style="max-width:57em;"> <li> $if (isEntryMarkdown e) ^{renderEntryMarkdown btext} <p>^{renderEntryMarkdown $ mtext} $else ^{preEscapedToHtml $ btext} <p>^{preEscapedToHtml $ mtext} <div class="innerBoxComments"> <div class="cHead">#{cHead lang} <ul style="max-width:57em;">#{renderComments comments lang} ^{renderCommentBox lang entryId} |] where woText = flip T.append author $ T.pack $ (formatTime defaultTimeLocale (eTimeFormat lang) edate) renderComments :: [Comment] -> BlogLang -> Html renderComments [] lang = [shamlet|<li>#{noComments lang}|] renderComments comments lang = [shamlet| $forall comment <- comments <li> <i>#{append (cauthor comment) ": "} ^{preEscapedToHtml $ ctext comment} <p class="tt">#{timeString $ cdate comment} |] where timeString = formatTime defaultTimeLocale (cTimeFormat lang) captcha :: Html captcha = [shamlet| <div class="cCaptcha"> <script src="http://api.recaptcha.net/challenge?k=6LfQXccSAAAAAIjKm26XlFnBMAgvaKlOAjVWEEnM" type="text/javascript"> <noscript> <iframe src="http://api.recaptcha.net/noscript?k=6LfQXccSAAAAAIjKm26XlFnBMAgvaKlOAjVWEEnM" height="300" width="500" seamless> <br> <textarea name="recaptcha_challenge_field" rows="3" cols="40"> <input type="hidden" name="recaptcha_response_field" value="manual_challenge"> |] captchaOptions :: BlogLang -> Html captchaOptions lang = [shamlet|<script type="text/javascript">^{preEscapedToHtml options}|] where options = T.concat ["var RecaptchaOptions = { theme: 'clean', lang: '", showLangText lang, "'};"] renderCommentBox :: BlogLang -> EntryId -> Html renderCommentBox cLang cId = [shamlet| <div class="cHead">#{cwHead cLang} ^{captchaOptions cLang} <form method="POST" action=#{aLink}> <p><input name="cname" placeholder="Name" class="cInput"> <p> <label> <textarea name="ctext" cols="50" rows="13" class="cInput" placeholder=#{cTextPlaceholder cLang}> <p> <label> ^{captcha} <p><input class="cInput" style="width:120px;" type="submit" value=#{cSend cLang}> |] where aLink = T.concat ["/", show' cLang, "/postcomment/", show' cId] showSiteNotice :: Html showSiteNotice = [shamlet| $doctype 5 <head> <title>Impressum <body> <h2>Impressum <br> <p> Vincent Ambo <br> Gyllenborgsgatan 8, LGH 1306 <br> 11243 Stockholm <p><a href="/" style="color:black;">Back |] {- Administration pages -} adminTemplate :: Text -> Html -> Html adminTemplate title body = [shamlet| $doctype 5 <head> <link rel="stylesheet" type="text/css" href="/static/admin.css" media="all"> <meta http-equiv="content-type" content="text/html;charset=UTF-8"> <title>#{append "TazBlog Admin: " title} <body> ^{body} |] adminLogin :: Html adminLogin = adminTemplate "Login" $ [shamlet| <div class="loginBox"> <div class="loginBoxTop">TazBlog Admin: Login <div class="loginBoxMiddle"> <form action="/dologin" method="POST"> <p>Account ID <p><input type="text" style="font-size:2;" name="account" value="tazjin" readonly="1"> <p>Passwort <p><input type="password" style="font-size:2;" name="password"> <p><input alt="Anmelden" type="image" src="/static/signin.gif"> |] adminIndex :: Text -> Html adminIndex sUser = adminTemplate "Index" $ [shamlet| <div style="float:center;"> <form action="/admin/postentry" method="POST"> <table> <tr> <thead><td>Titel: <td><input type="text" name="title"> <tr> <thead><td>Sprache: <td><select name="lang"> <option value="de">Deutsch <option value="en">Englisch <tr> <thead><td>Text: <td> <textarea name="btext" cols="100" rows="15"> <tr> <thead> <td style="vertical-align:top;">Mehr Text: <td> <textarea name="mtext" cols="100" rows="15"> <input type="hidden" name="author" value=#{sUser}> <input style="margin-left:20px;" type="submit" value="Absenden"> ^{adminFooter} |] adminFooter :: Html adminFooter = [shamlet| <a href="/">Startseite \ -- Entrylist: # <a href="/admin/entrylist/de">DE \ & # <a href="/admin/entrylist/en">EN \ -- # <a href="#">Backup \ (NYI) |] adminEntryList :: [Entry] -> Html adminEntryList entries = adminTemplate "EntryList" $ [shamlet| <div style="float: center;"> <table> $forall entry <- entries <tr> <td><a href=#{append "/admin/edit/" (show' $ entryId entry)}>#{title entry} <td>#{formatPostDate $ edate entry} |] where formatPostDate = formatTime defaultTimeLocale "[On %D at %H:%M]" editPage :: Entry -> Html editPage (Entry{..}) = adminTemplate "Index" $ [shamlet| <div style="float:center;"> <form action="/admin/updateentry" method="POST"> <table> <tr> <td>Titel: <td> <input type="text" name="title" value=#{title}> <tr> <td style="vertical-align:top;">Text: <td> <textarea name="btext" cols="100" rows="15">#{btext} <tr> <td style="vertical-align:top;">Mehr Text: <td> <textarea name="mtext" cols="100" rows="15">#{mtext} <input type="hidden" name="eid" value=#{unEntryId entryId}> <input type="submit" style="margin-left:20px;" value="Absenden"> <div class="editComments">#{editComments comments entryId} <p>^{adminFooter} |] editComments :: [Comment] -> EntryId -> Html editComments comments eId = [shamlet| <table> $forall c <- comments <tr> <td>#{cauthor c} <td>#{cPostTime $ cdate c} <tr> <td><a href=#{cDeleteLink $ cdate c}>Löschen |] where cPostTime = formatTime defaultTimeLocale "%c" cDeleteLink cd = concat ["/admin/cdelete/", show eId, formatTime defaultTimeLocale "/%s%Q" cd] commentDeleted :: EntryId -> Html commentDeleted eId = adminTemplate "Kommentar gelöscht" $ [shamlet| <div>Der Kommentar wurde gelöscht. <br> <a href=#{append "/de/" $ show' eId}>Eintrag ansehen | # <a href=#{append "/admin/edit/" $ show' eId}>Eintrag bearbeiten |] showError :: BlogError -> BlogLang -> Html showError NotFound l = blogTemplate l (T.append ": " $ notFoundTitle l) $ [shamlet| <span class="innerTitle">#{notFoundTitle l} <div class="innerTitle"> <p class="notFoundFace">:( <p class="notFoundText">#{notFoundText l} |]