From e069bc069f998e3158c826e20f7d94575907ae46 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Fri, 23 Oct 2020 16:16:50 -0400
Subject: Rename Que.{Server,Website} -> Que.{Host,Site}

---
 Que/Site.hs | 135 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 Que/Site.hs

(limited to 'Que/Site.hs')

diff --git a/Que/Site.hs b/Que/Site.hs
new file mode 100644
index 0000000..2b35956
--- /dev/null
+++ b/Que/Site.hs
@@ -0,0 +1,135 @@
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RecordWildCards #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+
+-- | spawns a few processes that serve the que.run website
+--
+-- : exe que-website
+--
+-- : dep async
+-- : dep config-ini
+-- : dep process
+-- : dep protolude
+-- : dep req
+module Que.Site
+  ( main,
+  )
+where
+
+import Alpha
+import qualified Control.Concurrent.Async as Async
+import qualified Data.ByteString.Char8 as BS
+import qualified Data.Ini.Config as Config
+import qualified Data.Text as Text
+import Data.Text.Encoding (encodeUtf8)
+import qualified Data.Text.IO as Text
+import Network.HTTP.Req
+import qualified System.Directory as Directory
+import System.Environment as Environment
+import qualified System.Exit as Exit
+import System.FilePath ((</>))
+import qualified System.Process as Process
+
+main :: IO ()
+main = do
+  (src, ns) <- Environment.getArgs >>= \case
+    [src] -> return (src, "_") -- default to _ ns which is special
+    [src, ns] -> return (src, Text.pack ns)
+    _ -> Exit.die "usage: que-website <srcdir> [namespace]"
+  mKey <- getKey ns
+  putText <| "serving " <> Text.pack src <> " at " <> ns
+  run mKey ns <|
+    Sources
+      { index = src </> "index.md",
+        client = src </> "client.py",
+        quescripts = src </> "quescripts.md",
+        style = src </> "style.css",
+        apidocs = src </> "apidocs.md",
+        tutorial = src </> "tutorial.md"
+      }
+
+getKey :: Namespace -> IO (Maybe Key)
+getKey ns = do
+  home <- Directory.getHomeDirectory
+  let file = home </> ".config" </> "que.conf"
+  exists <- Directory.doesFileExist file
+  unless exists <| panic <| "not found: " <> Text.pack file
+  conf <- Text.readFile file
+  print (home </> ".config" </> "que.conf")
+  auth ns
+    |> Config.parseIniFile conf
+    |> either errorParsingConf identity
+    |> return
+
+errorParsingConf :: error
+errorParsingConf = panic "could not parse ~/.config/que.conf"
+
+data Sources
+  = Sources
+      { index :: FilePath,
+        quescripts :: FilePath,
+        client :: FilePath,
+        style :: FilePath,
+        tutorial :: FilePath,
+        apidocs :: FilePath
+      }
+
+type Namespace = Text
+
+type Key = Text
+
+auth :: Namespace -> Config.IniParser (Maybe Key)
+auth "pub" = pure Nothing
+auth ns = Config.sectionMb ns <| Config.field "key"
+
+run :: Maybe Key -> Text -> Sources -> IO ()
+run key ns Sources {..} = Async.runConcurrently actions |> void
+  where
+    actions =
+      traverse
+        Async.Concurrently
+        [ forever <| toHtml index >>= serve key ns "index",
+          forever <| toHtml quescripts >>= serve key ns "quescripts",
+          forever <| BS.readFile client >>= serve key ns "client",
+          forever <| toHtml tutorial >>= serve key ns "tutorial",
+          forever <| toHtml apidocs >>= serve key ns "apidocs"
+        ]
+    toHtml :: FilePath -> IO ByteString
+    toHtml md =
+      BS.pack
+        </ Process.readProcess
+          "pandoc"
+          [ "--include-in-header",
+            style,
+            "-i",
+            md,
+            "--from",
+            "markdown",
+            "--to",
+            "html"
+          ]
+          []
+
+serve :: Maybe Key -> Namespace -> Text -> ByteString -> IO ()
+serve Nothing "pub" path content = runReq defaultHttpConfig <| do
+  _ <-
+    req
+      POST
+      (http "que.run" /: "pub" /: path)
+      (ReqBodyBs content)
+      ignoreResponse
+      mempty
+  liftIO <| return ()
+serve Nothing p _ _ = panic <| "no auth key provided for ns: " <> p
+serve (Just key) ns path content = runReq defaultHttpConfig <| do
+  let options =
+        header "Authorization" (encodeUtf8 key) <> responseTimeout maxBound
+  _ <-
+    req
+      POST
+      (http "que.run" /: ns /: path)
+      (ReqBodyBs content)
+      ignoreResponse
+      options
+  liftIO <| return ()
-- 
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