{-# LANGUAGE
- OverloadedStrings
- , UnicodeSyntax
+ UnicodeSyntax
#-}
-module Main where
-import Codec.Compression.GZip
+module Main (main) where
import Control.Applicative
import Control.Monad
import qualified Data.Ascii as A
-import qualified Data.ByteString.Base64 as B64
-import qualified Data.ByteString.Char8 as Strict
-import qualified Data.ByteString.Lazy as Lazy
import Data.Char
-import Data.Digest.Pure.SHA
-import Data.Int
import Data.Maybe
-import Data.Time
-import Data.Time.Clock.POSIX
-import Language.Haskell.Exts.Build
-import Language.Haskell.Exts.Extension
-import Language.Haskell.Exts.Pretty
-import Language.Haskell.Exts.Syntax
+import Language.Haskell.TH.PprLib
+import Language.Haskell.TH.Syntax
import Network.HTTP.Lucu.ETag
+import Network.HTTP.Lucu.Implant.Input
+import Network.HTTP.Lucu.Implant.PrettyPrint
import Network.HTTP.Lucu.MIMEType
-import Network.HTTP.Lucu.MIMEType.DefaultExtensionMap
-import Network.HTTP.Lucu.MIMEType.Guess
import Prelude.Unicode
import System.Console.GetOpt
import System.Environment
import System.Exit
-import System.Posix.Files
import System.IO
data CmdOpt
where
msg = [ ""
, "Description:"
- , concat [ " lucu-implant-file is an utility that generates "
+ , concat [ " lucu-implant-file is an utility that generates "
, "Haskell code containing an arbitrary file to "
, "compile it directly into programs and serve it "
, "statically with the Lucu HTTP server."
generateHaskellSource opts (head sources)
-generateHaskellSource ∷ [CmdOpt] → FilePath → IO ()
-generateHaskellSource opts srcFile
- = do modName ← getModuleName opts
- symName ← getSymbolName opts modName
- mType ← getMIMEType opts srcFile
- lastMod ← getLastModified srcFile
- input ← openInput srcFile
- output ← openOutput opts
- tag ← getETag opts input
-
- let compParams = defaultCompressParams { compressLevel = bestCompression }
- gzippedData = compressWith compParams input
- originalLen = Lazy.length input
- gzippedLen = Lazy.length gzippedData
- useGZip = originalLen > gzippedLen
- rawB64 = B64.encode <$> Lazy.toChunks input
- gzippedB64 = B64.encode <$> Lazy.toChunks gzippedData
-
- header ← mkHeader srcFile originalLen gzippedLen useGZip mType tag lastMod
-
- let hsModule = mkModule modName symName imports decls
- imports = mkImports useGZip
- decls = concat [ resourceDecl symName useGZip
- , entityTagDecl tag
- , lastModifiedDecl lastMod
- , contentTypeDecl mType
- , if useGZip then
- dataDecl (name "gzippedData") gzippedB64
- else
- dataDecl (name "rawData") rawB64
- ]
-
- hPutStrLn output header
- hPutStrLn output (prettyPrint hsModule)
- hClose output
-
-mkModule ∷ ModuleName → Name → [ImportDecl] → [Decl] → Module
-mkModule modName symName imports decls
- = let modPragma = [ LanguagePragma (⊥) [ name (show OverloadedStrings) ] ]
- exports = [ EVar (UnQual symName) ]
- in
- Module (⊥) modName modPragma Nothing (Just exports) imports decls
-
-mkImports ∷ Bool → [ImportDecl]
-mkImports useGZip
- = [ ImportDecl (⊥) (ModuleName "Data.ByteString.Base64")
- True False Nothing (Just (ModuleName "B64")) Nothing
- , ImportDecl (⊥) (ModuleName "Data.ByteString.Lazy")
- True False Nothing (Just (ModuleName "Lazy")) Nothing
- , ImportDecl (⊥) (ModuleName "Data.Time")
- False False Nothing Nothing Nothing
- , ImportDecl (⊥) (ModuleName "Network.HTTP.Lucu")
- False False Nothing Nothing Nothing
- ]
- ⧺
- [ ImportDecl (⊥) (ModuleName "Codec.Compression.GZip")
- False False Nothing Nothing Nothing
- | useGZip ]
-
-resourceDecl ∷ Name → Bool → [Decl]
-resourceDecl symName useGZip
- = [ TypeSig (⊥) [symName] (TyCon (UnQual (name "ResourceDef")))
- , nameBind (⊥) symName valExp
- ]
- where
- valExp ∷ Exp
- valExp = RecUpdate (function "emptyResource")
- [ FieldUpdate (UnQual (name "resGet" )) resGet
- , FieldUpdate (UnQual (name "resHead")) resHead
- ]
-
- resGet ∷ Exp
- resGet | useGZip = resGetGZipped
- | otherwise = resGetRaw
-
-resHead ∷ Exp
-resHead
- = function "Just" `app`
- paren (doE [ foundEntityStmt
- , setContentTypeStmt
- ])
-
-resGetGZipped ∷ Exp
-resGetGZipped
- = function "Just" `app`
- paren (doE [ foundEntityStmt
- , setContentTypeStmt
- , bindGZipStmt
- , conditionalOutputStmt
- ])
- where
- condVarName ∷ Name
- condVarName = name "gzipAllowed"
-
- dataVarName ∷ Name
- dataVarName = name "gzippedData"
-
- bindGZipStmt ∷ Stmt
- bindGZipStmt
- = genStmt (⊥)
- (pvar condVarName)
- (function "isEncodingAcceptable" `app` strE "gzip")
-
- conditionalOutputStmt ∷ Stmt
- conditionalOutputStmt
- = qualStmt $
- If (var condVarName)
- (doE [ setContentEncodingGZipStmt
- , putChunksStmt (var dataVarName)
- ])
- (putChunksExp
- (paren
- (function "decompress" `app` var dataVarName)))
-
-resGetRaw ∷ Exp
-resGetRaw
- = function "Just" `app`
- paren (doE [ foundEntityStmt
- , setContentTypeStmt
- , putChunksStmt (function "rawData")
- ])
-
-setContentEncodingGZipStmt ∷ Stmt
-setContentEncodingGZipStmt
- = qualStmt
- ( function "setContentEncoding"
- `app`
- listE [ strE "gzip" ]
- )
-
-foundEntityStmt ∷ Stmt
-foundEntityStmt
- = qualStmt $
- metaFunction "foundEntity"
- [ var (name "entityTag")
- , var (name "lastModified")
- ]
-
-setContentTypeStmt ∷ Stmt
-setContentTypeStmt
- = qualStmt
- ( function "setContentType"
- `app`
- function "contentType"
- )
-
-putChunksExp ∷ Exp → Exp
-putChunksExp = app (function "putChunks")
-
-putChunksStmt ∷ Exp → Stmt
-putChunksStmt = qualStmt ∘ putChunksExp
-
-entityTagDecl ∷ ETag → [Decl]
-entityTagDecl tag
- = [ TypeSig (⊥) [varName] (TyCon (UnQual (name "ETag")))
- , nameBind (⊥) varName valExp
- ]
- where
- varName ∷ Name
- varName = name "entityTag"
-
- valExp ∷ Exp
- valExp = function "parseETag" `app` strE (eTagToString tag)
-
-lastModifiedDecl ∷ UTCTime → [Decl]
-lastModifiedDecl lastMod
- = [ TypeSig (⊥) [varName] (TyCon (UnQual (name "UTCTime")))
- , nameBind (⊥) varName valExp
- , InlineSig (⊥) False AlwaysActive (UnQual varName)
- ]
- where
- varName ∷ Name
- varName = name "lastModified"
-
- valExp ∷ Exp
- valExp = function "read" `app` strE (show lastMod)
-
-contentTypeDecl ∷ MIMEType → [Decl]
-contentTypeDecl mime
- = [ TypeSig (⊥) [varName] (TyCon (UnQual (name "MIMEType")))
- , nameBind (⊥) varName valExp
- , InlineSig (⊥) False AlwaysActive (UnQual varName)
- ]
- where
- varName ∷ Name
- varName = name "contentType"
-
- valExp ∷ Exp
- valExp = function "parseMIMEType" `app` strE (mimeToString mime)
-
- mimeToString ∷ MIMEType → String
- mimeToString = A.toString ∘ A.fromAsciiBuilder ∘ printMIMEType
-
-dataDecl ∷ Name → [Strict.ByteString] → [Decl]
-dataDecl varName chunks
- = [ TypeSig (⊥) [varName] (TyCon (Qual (ModuleName "Lazy") (name "ByteString")))
- , nameBind (⊥) varName valExp
- , InlineSig (⊥) False AlwaysActive (UnQual varName)
- ]
- where
- valExp ∷ Exp
- valExp = qvar (ModuleName "Lazy") (name "fromChunks")
- `app`
- listE (chunkToExp <$> chunks)
-
- chunkToExp ∷ Strict.ByteString → Exp
- chunkToExp chunk
- = qvar (ModuleName "B64") (name "decodeLenient")
- `app`
- strE (Strict.unpack chunk)
-
-mkHeader ∷ FilePath → Int64 → Int64 → Bool → MIMEType → ETag → UTCTime → IO String
-mkHeader srcFile originalLen gzippedLen useGZip mType tag lastMod
- = do localLastMod ← utcToLocalZonedTime lastMod
- return $ concat
- [ "{- DO NOT EDIT THIS FILE.\n"
- , " This file is automatically generated by the lucu-implant-file program.\n"
- , "\n"
- , " Source: ", if srcFile ≡ "-" then
- "(stdin)"
- else
- srcFile
- , "\n"
- , " Original Length: ", show originalLen, " bytes\n"
- , if useGZip then
- " Compressed Length: " ⧺ show gzippedLen ⧺ " bytes\n" ⧺
- " Compression: gzip\n"
- else
- " Compression: disabled\n"
- , " MIME Type: ", mimeTypeToString mType, "\n"
- , " ETag: ", eTagToString tag, "\n"
- , " Last Modified: ", show localLastMod, "\n"
- , " -}"
- ]
-
-eTagToString ∷ ETag → String
-eTagToString = A.toString ∘ A.fromAsciiBuilder ∘ printETag
-
-mimeTypeToString ∷ MIMEType → String
-mimeTypeToString = A.toString ∘ A.fromAsciiBuilder ∘ printMIMEType
-
-getModuleName ∷ [CmdOpt] → IO ModuleName
-getModuleName opts
- = case modNameOpts of
- [] → fail "a module name must be given."
- OptModName modName:[] → return $ ModuleName modName
- _ → fail "too many --module options."
- where
- modNameOpts ∷ [CmdOpt]
- modNameOpts = filter (\ x → case x of
- OptModName _ → True
- _ → False) opts
-
-getSymbolName ∷ [CmdOpt] → ModuleName → IO Name
-getSymbolName opts (ModuleName modName)
- = case symNameOpts of
- [] → return defaultSymName
- OptSymName symName:[] → return $ name symName
- _ → fail "too many --symbol options."
- where
- symNameOpts ∷ [CmdOpt]
- symNameOpts = filter (\ x → case x of
- OptSymName _ → True
- _ → False) opts
-
- defaultSymName ∷ Name
- defaultSymName
- = name $ headToLower $ getLastComp modName
-
- headToLower ∷ String → String
- headToLower [] = error "module name must not be empty"
- headToLower (x:xs) = toLower x : xs
-
- getLastComp ∷ String → String
- getLastComp = reverse ∘ fst ∘ break (≡ '.') ∘ reverse
-
-getMIMEType ∷ [CmdOpt] → FilePath → IO MIMEType
-getMIMEType opts srcFile
+getMIMEType ∷ [CmdOpt] → Maybe MIMEType
+getMIMEType opts
= case mimeTypeOpts of
- [] → return defaultType
+ [] → Nothing
OptMIMEType ty:[]
→ case A.fromChars ty of
- Just a → return $ parseMIMEType a
- Nothing → fail "MIME type must not contain any non-ASCII letters."
- _ → fail "too many --mime-type options."
+ Just a → Just $ parseMIMEType a
+ Nothing → error "MIME types must not contain any non-ASCII letters."
+ _ → error "too many --mime-type options."
where
mimeTypeOpts ∷ [CmdOpt]
mimeTypeOpts
OptMIMEType _ → True
_ → False) opts
- octetStream ∷ MIMEType
- octetStream = parseMIMEType "application/octet-stream"
-
- defaultType ∷ MIMEType
- defaultType = fromMaybe octetStream
- $ guessTypeByFileName defaultExtensionMap srcFile
-
-getLastModified ∷ FilePath → IO UTCTime
-getLastModified "-" = getCurrentTime
-getLastModified fpath = (posixSecondsToUTCTime ∘ fromRational ∘ toRational ∘ modificationTime)
- <$>
- getFileStatus fpath
-
-getETag ∷ [CmdOpt] → Lazy.ByteString → IO ETag
-getETag opts input
+getETag ∷ [CmdOpt] → Maybe ETag
+getETag opts
= case eTagOpts of
- [] → return mkETagFromInput
- OptETag str:[] → return $ strToETag str
- _ → fail "too many --etag options."
+ [] → Nothing
+ OptETag str:[] → Just $ strToETag str
+ _ → error "too many --etag options."
where
eTagOpts ∷ [CmdOpt]
eTagOpts = filter (\ x → case x of
OptETag _ → True
_ → False) opts
- mkETagFromInput ∷ ETag
- mkETagFromInput
- = strToETag $ "SHA-1:" ⧺ showDigest (sha1 input)
-
strToETag ∷ String → ETag
strToETag str
= case A.fromChars str of
Just a → strongETag a
Nothing → error "ETag must not contain any non-ASCII letters."
-openInput ∷ FilePath → IO Lazy.ByteString
-openInput "-" = Lazy.getContents
-openInput fpath = Lazy.readFile fpath
-
openOutput ∷ [CmdOpt] → IO Handle
openOutput opts
= case outputOpts of
[] → return stdout
- OptOutput fpath:[] → openFile fpath WriteMode
+ OptOutput fpath:[] → do h ← openFile fpath WriteMode
+ hSetEncoding h utf8
+ return h
_ → fail "two many --output options."
where
outputOpts ∷ [CmdOpt]
OptOutput _ → True
_ → False) opts
-{-
- 作られるファイルの例 (壓縮されない場合):
- ------------------------------------------------------------------------------
- {- DO NOT EDIT THIS FILE.
- This file is automatically generated by the lucu-implant-file program.
-
- Source: baz.png
- Original Length: 302 bytes
- Compressed Length: 453 bytes -- これは Compression: disabled の時には無い
- Compression: disabled
- MIME Type: image/png
- ETag: "d41d8cd98f00b204e9800998ecf8427e"
- Last Modified: 2007-11-05 13:53:42.231882 JST
- -}
- {-# LANGUAGE OverloadedStrings #-}
- module Foo.Bar.Baz (baz) where
- import qualified Data.ByteString.Base64 as B64
- import qualified Data.ByteString.Lazy as Lazy
- import Data.Time
- import Network.HTTP.Lucu
-
- baz ∷ ResourceDef
- baz = ResourceDef {
- resUsesNativeThread = False
- , resIsGreedy = False
- , resGet
- = Just $ do foundEntity entityTag lastModified
- setContentType contentType
- putChunk rawData
- , resHead
- = Just $ do foundEntity entityTag lastModified
- setContentType contentType
- , resPost = Nothing
- , resPut = Nothing
- , resDelete = Nothing
- }
-
- entityTag ∷ ETag
- entityTag = strongETag "d41d8cd98f00b204e9800998ecf8427e"
-
- lastModified ∷ UTCTime
- {-# NOINLINE lastModified #-}
- lastModified = read "2007-11-05 04:47:56.008366 UTC"
-
- contentType ∷ MIMEType
- {-# NOINLINE contentType #-}
- contentType = parseMIMEType "image/png"
+getModuleName ∷ [CmdOpt] → ModName
+getModuleName opts
+ = case modNameOpts of
+ [] → error "a module name must be given."
+ OptModName name:[] → mkModName name
+ _ → error "too many --module options."
+ where
+ modNameOpts ∷ [CmdOpt]
+ modNameOpts = filter (\ x → case x of
+ OptModName _ → True
+ _ → False) opts
- rawData ∷ Lazy.ByteString
- {-# NOINLINE rawData #-}
- rawData = Lazy.fromChunks
- [ B64.decodeLenient "IyEvdXNyL2Jpbi9lbnYgcnVuZ2hjCgppbXBvcnQgRG..."
- , B64.decodeLenient "Otb/+DniOlRgAAAAYAAAAGAAAAB/6QOmToAEIGAAAA..."
- ]
- ------------------------------------------------------------------------------
+getSymbolName ∷ [CmdOpt] → Maybe Name
+getSymbolName opts
+ = case symNameOpts of
+ [] → Nothing
+ OptSymName name:[] → Just $ mkName name
+ _ → fail "too many --symbol options."
+ where
+ symNameOpts ∷ [CmdOpt]
+ symNameOpts = filter (\ x → case x of
+ OptSymName _ → True
+ _ → False) opts
- 壓縮される場合は次のやうに變はる:
- ------------------------------------------------------------------------------
- -- import に追加
- import Codec.Compression.Zlib
+defaultSymName ∷ ModName → Name
+defaultSymName = headToLower ∘ getLastComp
+ where
+ headToLower ∷ String → Name
+ headToLower [] = error "module name must not be empty"
+ headToLower (x:xs) = mkName (toLower x:xs)
- -- ResourceDef は次のやうに變化
- baz ∷ ResourceDef
- baz = ResourceDef {
- resUsesNativeThread = False
- , resIsGreedy = False
- , resGet
- = Just $ do foundEntity entityTag lastModified
- setContentType contentType
+ getLastComp ∷ ModName → String
+ getLastComp = reverse ∘ fst ∘ break (≡ '.') ∘ reverse ∘ modString
- gzipAllowed ← isEncodingAcceptable "gzip"
- if gzipAllowed then
- do setContentEncoding ["gzip"]
- putChunks gzippedData
- else
- putChunks (decompress gzippedData)
- , resHead
- = Just $ do foundEntity entityTag lastModified
- setContentType contentType
- , resPost = Nothing
- , resPut = Nothing
- , resDelete = Nothing
- }
+generateHaskellSource ∷ [CmdOpt] → FilePath → IO ()
+generateHaskellSource opts srcFile
+ = do i ← openInput srcFile (getMIMEType opts) (getETag opts)
+ o ← openOutput opts
+ doc ← pprInput i modName symName
+ hPutStrLn o $ show $ to_HPJ_Doc doc
+ hClose o
+ where
+ modName ∷ ModName
+ modName = getModuleName opts
- -- rawData の代はりに gzippedData
- gzippedData ∷ Lazy.ByteString
- {-# NOINLINE gzippedData #-}
- gzippedData = Lazy.fromChunks
- [ B64.decodeLenient "IyEvdXNyL2Jpbi9lbnYgcnVuZ2hjCgppbXBvcnQ..."
- , B64.decodeLenient "Otb/+DniOlRgAAAAYAAAAGAAAAB/6QOmToAEIGA..."
- ]
- ------------------------------------------------------------------------------
- -}
+ symName ∷ Name
+ symName = fromMaybe (defaultSymName modName)
+ $ getSymbolName opts
Main-Is: ImplantFile.hs
+ Other-Modules:
+ Network.HTTP.Lucu.Implant.Input
+ Network.HTTP.Lucu.Implant.PrettyPrint
+ Network.HTTP.Lucu.Implant.Rewrite
+
Build-Depends:
- SHA == 1.5.*,
- haskell-src-exts == 1.11.*,
- zlib == 0.5.*
+ SHA == 1.5.*,
+ syb == 0.3.*,
+ zlib == 0.5.*
ghc-options:
-Wall
{-# LANGUAGE
- OverloadedStrings
+ DeriveDataTypeable
+ , OverloadedStrings
+ , RecordWildCards
+ , TemplateHaskell
, UnicodeSyntax
#-}
-- |Entity tags
import Data.Ascii (Ascii, AsciiBuilder)
import qualified Data.Ascii as A
import Data.Attoparsec.Char8
+import Data.Data
import Data.Monoid.Unicode
+import Language.Haskell.TH.Syntax
import Network.HTTP.Lucu.Parser
import Network.HTTP.Lucu.Parser.Http hiding (token)
import Network.HTTP.Lucu.Utils
-- |An opaque string. Only characters from 0x20 (sp) to 0x7e (~)
-- are allowed.
, etagToken ∷ !Ascii
- } deriving (Eq, Show)
+ } deriving (Eq, Show, Data, Typeable)
+
+instance Lift ETag where
+ lift (ETag {..})
+ = [| ETag {
+ etagIsWeak = $(lift etagIsWeak)
+ , etagToken = $(liftAscii etagToken)
+ }
+ |]
-- |Convert an 'ETag' to an 'AsciiBuilder'.
printETag ∷ ETag → AsciiBuilder
--- /dev/null
+{-# LANGUAGE
+ QuasiQuotes
+ , RecordWildCards
+ , UnicodeSyntax
+ #-}
+module Network.HTTP.Lucu.Implant.Input
+ ( Input(..)
+
+ , originalLen
+ , gzippedLen
+ , useGZip
+
+ , openInput
+ )
+ where
+import Codec.Compression.GZip
+import Control.Applicative
+import qualified Data.Ascii as A
+import qualified Data.ByteString.Lazy as L
+import Data.Digest.Pure.SHA
+import Data.Maybe
+import Data.Time
+import Data.Time.Clock.POSIX
+import Network.HTTP.Lucu.ETag
+import Network.HTTP.Lucu.MIMEType hiding (mimeType)
+import Network.HTTP.Lucu.MIMEType.DefaultExtensionMap
+import Network.HTTP.Lucu.MIMEType.Guess
+import Network.HTTP.Lucu.MIMEType.TH
+import Prelude.Unicode
+import System.Posix.Files
+
+data Input
+ = Input {
+ iPath ∷ !FilePath
+ , iLastMod ∷ !UTCTime
+ , iType ∷ !MIMEType
+ , iETag ∷ !ETag
+ , iRawData ∷ !L.ByteString
+ , iGZipped ∷ !L.ByteString
+ }
+
+originalLen ∷ Input → Integer
+originalLen (Input {..})
+ = fromIntegral $ L.length iRawData
+
+gzippedLen ∷ Input → Integer
+gzippedLen (Input {..})
+ = fromIntegral $ L.length iGZipped
+
+useGZip ∷ Input → Bool
+useGZip i
+ = originalLen i ≥ gzippedLen i
+
+openInput ∷ FilePath → Maybe MIMEType → Maybe ETag → IO Input
+openInput fpath ctype etag
+ = do lastMod ← lastModified fpath
+ input ← openInputFile fpath
+ return Input {
+ iPath = fpath
+ , iLastMod = lastMod
+ , iType = fromMaybe octetStream
+ $ ctype <|> guessType fpath
+ , iETag = fromMaybe (mkETagFromInput input) etag
+ , iRawData = input
+ , iGZipped = compressWith compParams input
+ }
+ where
+ octetStream ∷ MIMEType
+ octetStream = [mimeType| application/octet-stream |]
+
+ compParams ∷ CompressParams
+ compParams = defaultCompressParams {
+ compressLevel = bestCompression
+ }
+
+lastModified ∷ FilePath → IO UTCTime
+lastModified "-" = getCurrentTime
+lastModified fpath = ( posixSecondsToUTCTime
+ ∘ fromRational
+ ∘ toRational
+ ∘ modificationTime
+ )
+ <$>
+ getFileStatus fpath
+
+openInputFile ∷ FilePath → IO L.ByteString
+openInputFile "-" = L.getContents
+openInputFile fpath = L.readFile fpath
+
+guessType ∷ FilePath → Maybe MIMEType
+guessType = guessTypeByFileName defaultExtensionMap
+
+mkETagFromInput ∷ L.ByteString → ETag
+mkETagFromInput input
+ = strongETag $ A.unsafeFromString
+ $ "SHA-1:" ⧺ showDigest (sha1 input)
--- /dev/null
+{-# LANGUAGE
+ DoAndIfThenElse
+ , OverloadedStrings
+ , RecordWildCards
+ , TemplateHaskell
+ , UnicodeSyntax
+ #-}
+module Network.HTTP.Lucu.Implant.PrettyPrint
+ ( pprInput
+ )
+ where
+import Codec.Compression.GZip
+import Control.Monad
+import Data.Ascii (CIAscii)
+import qualified Data.Ascii as A
+import qualified Data.ByteString.Lazy as L
+import Data.List
+import qualified Data.Map as M
+import Data.Time
+import Language.Haskell.TH.Lib
+import Language.Haskell.TH.Ppr
+import Language.Haskell.TH.PprLib
+import Language.Haskell.TH.Syntax
+import Network.HTTP.Lucu.ETag
+import Network.HTTP.Lucu.Implant.Input
+import Network.HTTP.Lucu.Implant.Rewrite
+import Network.HTTP.Lucu.MIMEType
+import Network.HTTP.Lucu.Resource
+import Network.HTTP.Lucu.Utils
+import Prelude.Unicode
+
+header ∷ Input → Doc
+header i@(Input {..})
+ = vcat [ text "{- DO NOT EDIT THIS FILE."
+ , nest 3 $
+ vcat [ text "This file is automatically generated by lucu-implant-file."
+ , text ""
+ , text " Source:" <+> if iPath ≡ "-" then
+ text "(stdin)"
+ else
+ text iPath
+ , hsep [ text " Original Length:"
+ , integer (originalLen i)
+ , text "bytes"
+ ]
+ , if useGZip i then
+ vcat [ hsep [ text "Compressed Length:"
+ , integer (gzippedLen i)
+ , text "bytes"
+ ]
+ , text " Compression: gzip"
+ ]
+ else
+ text " Compression: disabled"
+ , text " MIME Type:" <+> mimeTypeToDoc iType
+ , text " ETag:" <+> eTagToDoc iETag
+ , text " Last Modified:" <+> text (show iLastMod)
+ ]
+ , text " -}"
+ , text "{-# LANGUAGE MagicHash #-}"
+ ]
+ where
+ eTagToDoc ∷ ETag → Doc
+ eTagToDoc = text ∘ A.toString ∘ A.fromAsciiBuilder ∘ printETag
+
+ mimeTypeToDoc ∷ MIMEType → Doc
+ mimeTypeToDoc = text ∘ A.toString ∘ A.fromAsciiBuilder ∘ printMIMEType
+
+moduleDecl ∷ ModName → Name → Doc
+moduleDecl modName symName
+ = hsep [ text "module"
+ , text (modString modName)
+ , lparen
+ , ppr symName
+ , rparen
+ , text "where"
+ ]
+
+importDecls ∷ ModMap → Doc
+importDecls = vcat ∘ map f ∘ M.toAscList
+ where
+ f ∷ (ModName, Maybe ModName) → Doc
+ f (m, Nothing) = hsep [ text "import"
+ , text (modString m)
+ ]
+ f (m, Just m') = hsep [ text "import"
+ , text "qualified"
+ , text (modString m)
+ , text "as"
+ , text (modString m')
+ ]
+
+entityTag ∷ Name
+entityTag = mkName "entityTag"
+
+lastModified ∷ Name
+lastModified = mkName "lastModified"
+
+contentType ∷ Name
+contentType = mkName "contentType"
+
+rawData ∷ Name
+rawData = mkName "rawData"
+
+gzippedData ∷ Name
+gzippedData = mkName "gzippedData"
+
+gzipEncoding ∷ Name
+gzipEncoding = mkName "gzipEncoding"
+
+resourceDecl ∷ Input → Name → Q [Dec]
+resourceDecl i symName
+ = sequence [ sigD symName [t| ResourceDef |]
+ , valD (varP symName) (normalB (resourceE i)) decls
+ ]
+ where
+ decls ∷ [Q Dec]
+ decls | useGZip i
+ = [ sigD gzipEncoding [t| CIAscii |]
+ , valD (varP gzipEncoding) (normalB (liftCIAscii "gzip")) []
+ ]
+ | otherwise
+ = []
+
+resourceE ∷ Input → Q Exp
+resourceE i = [| emptyResource {
+ resGet = $(resGetE i)
+ , resHead = $(resHeadE i)
+ }
+ |]
+
+resGetE ∷ Input → Q Exp
+resGetE i
+ | useGZip i
+ = [| Just $
+ do foundEntity $(varE entityTag) $(varE lastModified)
+ setContentType $(varE contentType)
+
+ gzipAllowed ← isEncodingAcceptable $(varE gzipEncoding)
+ if gzipAllowed then
+ do setContentEncoding [$(varE gzipEncoding)]
+ putChunks $(varE gzippedData)
+ else
+ putChunks (decompress $(varE gzippedData))
+ |]
+ | otherwise
+ = [| Just $
+ do foundEntity $(varE entityTag) $(varE lastModified)
+ setContentType $(varE contentType)
+ putChunks $(varE rawData)
+ |]
+
+resHeadE ∷ Input → Q Exp
+resHeadE i
+ | useGZip i
+ = [| Just $
+ do foundEntity $(varE entityTag) $(varE lastModified)
+ setContentType $(varE contentType)
+
+ gzipAllowed ← isEncodingAcceptable $(varE gzipEncoding)
+ when gzipAllowed (setContentEncoding [$(varE gzipEncoding)])
+ |]
+ | otherwise
+ = [| Just $
+ do foundEntity $(varE entityTag)
+ $(varE lastModified)
+ setContentType $(varE contentType)
+ |]
+
+eTagDecl ∷ Input → Q [Dec]
+eTagDecl (Input {..})
+ = sequence [ sigD entityTag [t| ETag |]
+ , valD (varP entityTag) (normalB (lift iETag)) []
+ ]
+
+lastModDecl ∷ Input → Q [Dec]
+lastModDecl (Input {..})
+ = sequence [ sigD lastModified [t| UTCTime |]
+ , valD (varP lastModified) (normalB (liftUTCTime iLastMod)) []
+ ]
+
+contTypeDecl ∷ Input → Q [Dec]
+contTypeDecl (Input {..})
+ = sequence [ sigD contentType [t| MIMEType |]
+ , valD (varP contentType) (normalB (lift iType)) []
+ ]
+
+binDecl ∷ Input → Q [Dec]
+binDecl i@(Input {..})
+ | useGZip i
+ = sequence [ sigD gzippedData [t| L.ByteString |]
+ , valD (varP gzippedData) (normalB (liftLazyByteString iGZipped)) []
+ ]
+ | otherwise
+ = sequence [ sigD rawData [t| L.ByteString |]
+ , valD (varP rawData) (normalB (liftLazyByteString iRawData)) []
+ ]
+
+pprInput ∷ Quasi m ⇒ Input → ModName → Name → m Doc
+pprInput i modName symName
+ = do decls ← runQ $ sequence [ resourceDecl i symName
+ , eTagDecl i
+ , lastModDecl i
+ , contTypeDecl i
+ , binDecl i
+ ]
+ let (decls', mods) = rewriteNames decls
+ return $ vcat [ header i
+ , moduleDecl modName symName
+ , importDecls mods
+ , text ""
+ , vcat $ intersperse (text "") $ map ppr decls'
+ ]
--- /dev/null
+{-# LANGUAGE
+ UnicodeSyntax
+ #-}
+module Network.HTTP.Lucu.Implant.Rewrite
+ ( ModMap
+ , rewriteNames
+ )
+ where
+import Control.Applicative
+import Control.Monad.State
+import Data.Data
+import Data.Generics.Aliases
+import Data.Generics.Schemes
+import Data.Map (Map)
+import qualified Data.Map as M
+import Data.Monoid.Unicode
+import Language.Haskell.TH.Syntax
+import Prelude.Unicode
+
+-- FIXME: Document at least these data types.
+type ModMap = Map ModName (Maybe ModName)
+data RewriteTo = Qual (Maybe ModName) ModName | UnQual (Maybe ModName)
+
+rewriteNames ∷ Data d ⇒ d → (d, ModMap)
+rewriteNames
+ = flip runState (∅) ∘ gmapM (everywhereM (mkM rewriteName))
+
+rewriteName ∷ (Functor m, Monad m)
+ ⇒ Name
+ → StateT ModMap m Name
+rewriteName (Name o fl) = Name o <$> rewriteNameFlavour fl
+
+rewriteNameFlavour ∷ (Functor m, Monad m)
+ ⇒ NameFlavour
+ → StateT ModMap m NameFlavour
+rewriteNameFlavour fl
+ = case getModName fl of
+ Nothing → return fl
+ Just m → do let r = M.lookup m modules
+ insertIntoModMap m r
+ return $ setModName r fl
+
+insertIntoModMap ∷ Monad m
+ ⇒ ModName
+ → Maybe RewriteTo
+ → StateT ModMap m ()
+insertIntoModMap _ (Just (Qual (Just m) m')) = modify $ M.insert m (Just m')
+insertIntoModMap m (Just (Qual Nothing m')) = modify $ M.insert m (Just m')
+insertIntoModMap _ (Just (UnQual (Just m) )) = modify $ M.insert m Nothing
+insertIntoModMap _ (Just (UnQual Nothing )) = return ()
+insertIntoModMap m Nothing = modify $ M.insert m Nothing
+
+getModName ∷ NameFlavour → Maybe ModName
+getModName (NameQ m) = Just m
+getModName (NameG _ _ m) = Just m
+getModName _ = Nothing
+
+setModName ∷ Maybe RewriteTo → NameFlavour → NameFlavour
+setModName (Just (Qual _ m)) (NameQ _ ) = NameQ m
+setModName (Just (Qual _ m)) (NameG _ _ _) = NameQ m
+setModName (Just (UnQual _)) (NameQ _ ) = NameS
+setModName (Just (UnQual _)) (NameG _ _ _) = NameS
+setModName Nothing (NameQ _ ) = NameS
+setModName Nothing (NameG _ _ _) = NameS
+setModName _ _ = error "setModName: internal error"
+
+modules ∷ Map ModName RewriteTo
+modules
+ = M.fromList
+ [ ( mkModName "Codec.Compression.GZip"
+ , Qual Nothing $ mkModName "G"
+ )
+ , ( mkModName "Data.Ascii"
+ , Qual Nothing $ mkModName "A"
+ )
+ , ( mkModName "Data.ByteString.Char8"
+ , Qual Nothing $ mkModName "B"
+ )
+ , ( mkModName "Data.ByteString.Lazy.Internal"
+ , Qual Nothing $ mkModName "L"
+ )
+ , ( mkModName "Data.ByteString.Unsafe"
+ , Qual Nothing $ mkModName "B"
+ )
+ , ( mkModName "Data.Map"
+ , Qual Nothing $ mkModName "M"
+ )
+ , ( mkModName "Data.Maybe"
+ , UnQual Nothing
+ )
+ , ( mkModName "Data.Text"
+ , Qual Nothing $ mkModName "T"
+ )
+ , ( mkModName "Data.Time.Calendar.Days"
+ , UnQual $ Just $ mkModName "Data.Time"
+ )
+ , ( mkModName "Data.Time.Clock.Scale"
+ , UnQual $ Just $ mkModName "Data.Time"
+ )
+ , ( mkModName "Data.Time.Clock.UTC"
+ , UnQual $ Just $ mkModName "Data.Time"
+ )
+ , ( mkModName "GHC.Base"
+ , UnQual Nothing
+ )
+ , ( mkModName "GHC.Bool"
+ , UnQual Nothing
+ )
+ , ( mkModName "GHC.IO"
+ -- for 'unsafePerformIO', but rather problematic...
+ , UnQual $ Just $ mkModName "System.IO.Unsafe"
+ )
+ , ( mkModName "GHC.Real"
+ -- for '%', but rather problematic...
+ , UnQual $ Just $ mkModName "Data.Ratio"
+ )
+ , ( mkModName "Network.HTTP.Lucu.ETag"
+ , UnQual $ Just $ mkModName "Network.HTTP.Lucu"
+ )
+ , ( mkModName "Network.HTTP.Lucu.MIMEType"
+ , UnQual $ Just $ mkModName "Network.HTTP.Lucu"
+ )
+ , ( mkModName "Network.HTTP.Lucu.Resource"
+ , UnQual $ Just $ mkModName "Network.HTTP.Lucu"
+ )
+ , ( mkModName "Network.HTTP.Lucu.Resource.Internal"
+ , UnQual $ Just $ mkModName "Network.HTTP.Lucu"
+ )
+ ]
, niWillDiscardBody ∷ !(TVar Bool)
, niWillClose ∷ !(TVar Bool)
, niResponseHasCType ∷ !(TVar Bool)
+ -- FIXME: use TBChan Builder (in stm-chans package)
, niBodyToSend ∷ !(TMVar Builder)
, niState ∷ !(TVar InteractionState)
mkInteractionQueue ∷ IO InteractionQueue
mkInteractionQueue = newTVarIO (∅)
+-- FIXME: Response.hs should provide setStatus ∷ sc → Response → Response
setResponseStatus ∷ StatusCode sc ⇒ NormalInteraction → sc → STM ()
setResponseStatus (NI {..}) sc
= do res ← readTVar niResponse
$ abort
$ mkAbortion Forbidden [] Nothing
+ -- FIXME: Forget about ETags of a static file.
tag ← liftIO $ generateETagFromFile path
let lastMod = posixSecondsToUTCTime
$ fromRational
{-# LANGUAGE
OverloadedStrings
+ , RecordWildCards
, TemplateHaskell
, UnicodeSyntax
#-}
, parseWWWFormURLEncoded
, splitPathInfo
, trim
+ , liftByteString
+ , liftLazyByteString
+ , liftAscii
, liftCIAscii
, liftText
, liftMap
+ , liftUTCTime
)
where
import Control.Monad
import Data.Ascii (Ascii, CIAscii, AsciiBuilder)
import qualified Data.Ascii as A
import Data.ByteString (ByteString)
-import qualified Data.ByteString.Char8 as BS
+import qualified Data.ByteString.Char8 as Strict
+import qualified Data.ByteString.Unsafe as Strict
+import qualified Data.ByteString.Lazy.Internal as Lazy
import Data.Char
import Data.List hiding (last)
import Data.Map (Map)
import qualified Data.Map as M
import Data.Monoid.Unicode
+import Data.Ratio
import Data.Text (Text)
import qualified Data.Text as T
+import Data.Time
import Language.Haskell.TH.Lib
import Language.Haskell.TH.Syntax
import Network.URI
import Prelude hiding (last)
import Prelude.Unicode
+import System.IO.Unsafe
-- |>>> splitBy (== ':') "ab:c:def"
-- ["ab", "c", "def"]
go (A.toByteString str) (∅) ⊕
A.toAsciiBuilder "\""
where
- go ∷ BS.ByteString → AsciiBuilder → AsciiBuilder
+ go ∷ Strict.ByteString → AsciiBuilder → AsciiBuilder
go bs ab
- = case BS.break (≡ '"') bs of
+ = case Strict.break (≡ '"') bs of
(x, y)
- | BS.null y → ab ⊕ b2ab x
- | otherwise → go (BS.tail y) (ab ⊕ b2ab x
- ⊕ A.toAsciiBuilder "\\\"")
+ | Strict.null y
+ → ab ⊕ b2ab x
+ | otherwise
+ → go (Strict.tail y)
+ (ab ⊕ b2ab x ⊕ A.toAsciiBuilder "\\\"")
- b2ab ∷ BS.ByteString → AsciiBuilder
+ b2ab ∷ Strict.ByteString → AsciiBuilder
b2ab = A.toAsciiBuilder ∘ A.unsafeFromByteString
-- |>>> parseWWWFormURLEncoded "aaa=bbb&ccc=ddd"
)
where
unescape ∷ String → ByteString
- unescape = BS.pack ∘ unEscapeString ∘ map plusToSpace
+ unescape = Strict.pack ∘ unEscapeString ∘ map plusToSpace
plusToSpace ∷ Char → Char
plusToSpace '+' = ' '
= let reqPathStr = uriPath uri
reqPath = [unEscapeString x | x ← splitBy (≡ '/') reqPathStr, (¬) (null x)]
in
- map BS.pack reqPath
+ map Strict.pack reqPath
-- |>>> trim " ab c d "
-- "ab c d"
where
f = dropWhile isSpace
+-- |Convert a 'ByteString' to an 'Exp' representing it as a literal.
+liftByteString ∷ ByteString → Q Exp
+liftByteString bs
+ = [| Strict.pack $(litE $ stringL $ Strict.unpack bs) |]
+
+-- |Convert a 'Lazy.ByteString' to an 'Exp' representing it as a
+-- literal.
+liftLazyByteString ∷ Lazy.ByteString → Q Exp
+liftLazyByteString = Lazy.foldrChunks f [| Lazy.Empty |]
+ where
+ f ∷ ByteString → Q Exp → Q Exp
+ f bs e = [| Lazy.Chunk $(liftByteString bs) $e |]
+
+-- |Convert an 'Ascii' to an 'Exp' representing it as a literal.
+liftAscii ∷ Ascii → Q Exp
+liftAscii a = [| A.unsafeFromByteString
+ $ unsafePerformIO
+ $ Strict.unsafePackAddressLen $len $ptr
+ |]
+ where
+ bs ∷ Strict.ByteString
+ bs = A.toByteString a
+
+ len, ptr ∷ Q Exp
+ len = lift $ Strict.length bs
+ ptr = litE $ stringPrimL $ Strict.unpack bs
+
-- |Convert a 'CIAscii' to an 'Exp' representing it as a literal.
liftCIAscii ∷ CIAscii → Q Exp
-liftCIAscii a = [| A.toCIAscii (A.unsafeFromString $(strLit a)) |]
- where
- strLit ∷ CIAscii → Q Exp
- strLit = liftString ∘ A.toString ∘ A.fromCIAscii
+liftCIAscii a = [| A.toCIAscii $(liftAscii $ A.fromCIAscii a) |]
-- |Convert a 'Text' to an 'Exp' representing it as a literal.
liftText ∷ Text → Q Exp
-liftText t = [| T.pack $(strLit t) |]
- where
- strLit ∷ Text → Q Exp
- strLit = liftString ∘ T.unpack
+liftText t = [| T.pack $(litE $ stringL $ T.unpack t) |]
-- |Convert an arbitrary 'Map' to an 'Exp' representing it as a
-- literal, using a given key lifter and a value lifter.
liftMap ∷ Eq k ⇒ (k → Q Exp) → (v → Q Exp) → Map k v → Q Exp
-liftMap liftK liftV m = [| M.fromAscList $(liftPairs $ M.toAscList m) |]
+liftMap liftK liftV m
+ | M.null m = [| M.empty |]
+ | otherwise = [| M.fromDistinctAscList $(liftPairs (M.toAscList m)) |]
where
liftPairs = listE ∘ map liftPair
liftPair (k, v) = tupE [liftK k, liftV v]
+
+-- |Convert an 'UTCTime' to an 'Exp' representing it as a literal.
+liftUTCTime ∷ UTCTime → Q Exp
+liftUTCTime (UTCTime {..})
+ = [| UTCTime {
+ utctDay = $(liftDay utctDay)
+ , utctDayTime = $(liftDiffTime utctDayTime)
+ }
+ |]
+
+liftDay ∷ Day → Q Exp
+liftDay (ModifiedJulianDay {..})
+ = [| ModifiedJulianDay {
+ toModifiedJulianDay = $(lift toModifiedJulianDay)
+ }
+ |]
+
+liftDiffTime ∷ DiffTime → Q Exp
+liftDiffTime dt = [| fromRational ($n % $d) ∷ DiffTime |]
+ where
+ n, d ∷ Q Exp
+ n = lift $ numerator $ toRational dt
+ d = lift $ denominator $ toRational dt
projects / Lucu.git / commitdiff