module Blog where import BlogDB import Control.Monad (unless, when) import Data.Data (Data, Typeable) import Data.List (intersperse) import Data.Maybe (fromJust) import Data.Monoid (mempty) import Data.Text (Text, append, empty, pack) import Data.Text.Lazy (fromStrict) import Data.Time import Locales import Text.Blaze.Html (preEscapedToHtml) import Text.Hamlet import Text.Lucius import Text.Markdown 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 $ parseTimeM False defaultTimeLocale "%s" "1367149834" -- blog CSS (admin is still static) stylesheetSource = $(luciusFile "res/blog.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/bootstrap.css" media="all"> <link rel="stylesheet" type="text/css" href="/static/blogv40.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 #wrap> <div .header> <div .container > <div .row> <div .span12 .blogtitle> <a class="btitle" href=#{append "/" (show' lang)}>#{blogTitle lang empty} <div .row> <br> <div .span6> <span .contacts #cosx>^{contactInfo} <div .container> ^{body} <footer .footer> ^{showFooter lang $ pack version} |] 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 .container> <div .row> <div .span12 .righttext style="text-align: right;margin-right:-200px"> 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} <div .row .text-center> <div .span12> <span style="font-size:13px;font-family:Helvetica;">ಠ_ಠ |] 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| <div .row> <div .span12> <p> <span class="innerTitle"> <b>#{topText} $forall entry <- elist <div .row> <div .span2> <a href=#{linkElems entry}> <b>#{title entry} <br> <i>#{pack $ formatTime defaultTimeLocale "%Y-%m-%d" $ edate entry} <div .span10 .entry> $if (isEntryMarkdown entry) ^{renderEntryMarkdown $ append " " $ btext entry} $else ^{preEscapedToHtml $ append " " $ btext entry} $if ((/=) (mtext entry) empty) <p> <a .readmore 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] showLinks :: Maybe Int -> BlogLang -> Html showLinks (Just i) lang = [shamlet| $if ((>) i 1) <div .row .text-center> <div .span12> <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 .row .text-center> <div .span12> <a href=#{nLink}>#{backText lang} |] where nLink = T.concat ["/", show' lang, "/?page=2"] renderEntry :: Entry -> Html renderEntry e@Entry{..} = [shamlet| <div .row .pusher> <div .span9> <span .boldify>#{title} <div .span3> <span .righttext><i>#{woText}</i> <div .row .innerContainer> <div .span10> <article> $if (isEntryMarkdown e) ^{renderEntryMarkdown btext} <p>^{renderEntryMarkdown $ mtext} $else ^{preEscapedToHtml $ btext} <p>^{preEscapedToHtml $ mtext} |] where woText = flip T.append author $ T.pack $ formatTime defaultTimeLocale (eTimeFormat lang) edate {- 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"> <p>^{adminFooter} |] showError :: BlogError -> BlogLang -> Html showError NotFound l = blogTemplate l (T.append ": " $ notFoundTitle l) $ [shamlet| <div .row .text-center> <div .span12 .notFoundFace>:( <div .row .text-center> <div .span12 .notFoundText> #{notFoundText l} |]