{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE TupleSections #-}
module Text.Pandoc.SelfContained ( makeDataURI, makeSelfContained ) where
import Codec.Compression.GZip as Gzip
import Control.Applicative ((<|>))
import Control.Monad.Trans (lift)
import Data.ByteString (ByteString)
import Data.ByteString.Base64
import qualified Data.ByteString.Char8 as B
import qualified Data.ByteString.Lazy as L
import qualified Data.Text as T
import Data.Char (isAlphaNum, isAscii)
import Network.URI (escapeURIString)
import System.FilePath (takeDirectory, takeExtension, (</>))
import Text.HTML.TagSoup
import Text.Pandoc.Class.PandocMonad (PandocMonad (..), fetchItem,
getInputFiles, report, setInputFiles)
import Text.Pandoc.Logging
import Text.Pandoc.Error (PandocError(..))
import Text.Pandoc.MIME (MimeType)
import Text.Pandoc.Shared (isURI, renderTags', trim, tshow)
import Text.Pandoc.UTF8 (toString, toText, fromText)
import Text.Parsec (ParsecT, runParserT)
import Control.Monad.Except (throwError, catchError)
import qualified Text.Parsec as P
isOk :: Char -> Bool
isOk :: Char -> Bool
isOk Char
c = Char -> Bool
isAscii Char
c Bool -> Bool -> Bool
&& Char -> Bool
isAlphaNum Char
c
makeDataURI :: (MimeType, ByteString) -> T.Text
makeDataURI :: (Text, ByteString) -> Text
makeDataURI (Text
mime, ByteString
raw) =
if Bool
textual
then Text
"data:" forall a. Semigroup a => a -> a -> a
<> Text
mime' forall a. Semigroup a => a -> a -> a
<> Text
"," forall a. Semigroup a => a -> a -> a
<> String -> Text
T.pack ((Char -> Bool) -> String -> String
escapeURIString Char -> Bool
isOk (ByteString -> String
toString ByteString
raw))
else Text
"data:" forall a. Semigroup a => a -> a -> a
<> Text
mime' forall a. Semigroup a => a -> a -> a
<> Text
";base64," forall a. Semigroup a => a -> a -> a
<> ByteString -> Text
toText (ByteString -> ByteString
encode ByteString
raw)
where textual :: Bool
textual = Text
"text/" Text -> Text -> Bool
`T.isPrefixOf` Text
mime
mime' :: Text
mime' = if Bool
textual Bool -> Bool -> Bool
&& (Char -> Bool) -> Text -> Bool
T.any (forall a. Eq a => a -> a -> Bool
== Char
';') Text
mime
then Text
mime forall a. Semigroup a => a -> a -> a
<> Text
";charset=utf-8"
else Text
mime
isSourceAttribute :: T.Text -> (T.Text, T.Text) -> Bool
isSourceAttribute :: Text -> (Text, Text) -> Bool
isSourceAttribute Text
tagname (Text
x,Text
_) =
Text
x forall a. Eq a => a -> a -> Bool
== Text
"src" Bool -> Bool -> Bool
||
Text
x forall a. Eq a => a -> a -> Bool
== Text
"data-src" Bool -> Bool -> Bool
||
(Text
x forall a. Eq a => a -> a -> Bool
== Text
"href" Bool -> Bool -> Bool
&& Text
tagname forall a. Eq a => a -> a -> Bool
== Text
"link") Bool -> Bool -> Bool
||
Text
x forall a. Eq a => a -> a -> Bool
== Text
"poster" Bool -> Bool -> Bool
||
Text
x forall a. Eq a => a -> a -> Bool
== Text
"data-background-image"
convertTags :: PandocMonad m => [Tag T.Text] -> m [Tag T.Text]
convertTags :: forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [] = forall (m :: * -> *) a. Monad m => a -> m a
return []
convertTags (t :: Tag Text
t@TagOpen{}:[Tag Text]
ts)
| forall str.
(Show str, Eq str, StringLike str) =>
str -> Tag str -> str
fromAttrib Text
"data-external" Tag Text
t forall a. Eq a => a -> a -> Bool
== Text
"1" = (Tag Text
tforall a. a -> [a] -> [a]
:) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
convertTags (t :: Tag Text
t@(TagOpen Text
"style" [(Text, Text)]
_):[Tag Text]
ts) =
case forall a. (a -> Bool) -> [a] -> ([a], [a])
span forall str. Tag str -> Bool
isTagText [Tag Text]
ts of
([Tag Text]
xs,[Tag Text]
rest) -> do
[Tag Text]
xs' <- forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (\case
TagText Text
s -> forall str. str -> Tag str
TagText forall b c a. (b -> c) -> (a -> b) -> a -> c
. ByteString -> Text
toText forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *).
PandocMonad m =>
String -> ByteString -> m ByteString
cssURLs String
"" (Text -> ByteString
fromText Text
s)
Tag Text
tag -> forall (m :: * -> *) a. Monad m => a -> m a
return Tag Text
tag) [Tag Text]
xs
((Tag Text
tforall a. a -> [a] -> [a]
:[Tag Text]
xs') forall a. [a] -> [a] -> [a]
++) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
rest
convertTags (t :: Tag Text
t@(TagOpen Text
"script" [(Text, Text)]
as):tc :: Tag Text
tc@(TagClose Text
"script"):[Tag Text]
ts) =
case forall str.
(Show str, Eq str, StringLike str) =>
str -> Tag str -> str
fromAttrib Text
"src" Tag Text
t of
Text
"" -> (Tag Text
tforall a. a -> [a] -> [a]
:) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
Text
src -> do
let typeAttr :: Text
typeAttr = forall str.
(Show str, Eq str, StringLike str) =>
str -> Tag str -> str
fromAttrib Text
"type" Tag Text
t
GetDataResult
res <- forall (m :: * -> *).
PandocMonad m =>
Text -> Text -> m GetDataResult
getData Text
typeAttr Text
src
[Tag Text]
rest <- forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
case GetDataResult
res of
AlreadyDataURI Text
dataUri -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall str. str -> [Attribute str] -> Tag str
TagOpen Text
"script"
((Text
"src",Text
dataUri) forall a. a -> [a] -> [a]
: [(Text
x,Text
y) | (Text
x,Text
y) <- [(Text, Text)]
as, Text
x forall a. Eq a => a -> a -> Bool
/= Text
"src"]) forall a. a -> [a] -> [a]
:
forall str. str -> Tag str
TagClose Text
"script" forall a. a -> [a] -> [a]
: [Tag Text]
rest
Fetched (Text
mime, ByteString
bs)
| (Text
"text/javascript" Text -> Text -> Bool
`T.isPrefixOf` Text
mime Bool -> Bool -> Bool
||
Text
"application/javascript" Text -> Text -> Bool
`T.isPrefixOf` Text
mime Bool -> Bool -> Bool
||
Text
"application/x-javascript" Text -> Text -> Bool
`T.isPrefixOf` Text
mime) Bool -> Bool -> Bool
&&
Bool -> Bool
not (ByteString
"</script" ByteString -> ByteString -> Bool
`B.isInfixOf` ByteString
bs) ->
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$
forall str. str -> [Attribute str] -> Tag str
TagOpen Text
"script" [(Text
"type", Text
typeAttr)|Bool -> Bool
not (Text -> Bool
T.null Text
typeAttr)]
forall a. a -> [a] -> [a]
: forall str. str -> Tag str
TagText (ByteString -> Text
toText ByteString
bs)
forall a. a -> [a] -> [a]
: forall str. str -> Tag str
TagClose Text
"script"
forall a. a -> [a] -> [a]
: [Tag Text]
rest
| Bool
otherwise ->
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall str. str -> [Attribute str] -> Tag str
TagOpen Text
"script"
((Text
"src",(Text, ByteString) -> Text
makeDataURI (Text
mime, ByteString
bs)) forall a. a -> [a] -> [a]
:
[(Text
x,Text
y) | (Text
x,Text
y) <- [(Text, Text)]
as, Text
x forall a. Eq a => a -> a -> Bool
/= Text
"src"]) forall a. a -> [a] -> [a]
:
forall str. str -> Tag str
TagClose Text
"script" forall a. a -> [a] -> [a]
: [Tag Text]
rest
CouldNotFetch PandocError
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ Tag Text
tforall a. a -> [a] -> [a]
:Tag Text
tcforall a. a -> [a] -> [a]
:[Tag Text]
rest
convertTags (t :: Tag Text
t@(TagOpen Text
"link" [(Text, Text)]
as):[Tag Text]
ts) =
case forall str.
(Show str, Eq str, StringLike str) =>
str -> Tag str -> str
fromAttrib Text
"href" Tag Text
t of
Text
"" -> (Tag Text
tforall a. a -> [a] -> [a]
:) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
Text
src -> do
GetDataResult
res <- forall (m :: * -> *).
PandocMonad m =>
Text -> Text -> m GetDataResult
getData (forall str.
(Show str, Eq str, StringLike str) =>
str -> Tag str -> str
fromAttrib Text
"type" Tag Text
t) Text
src
case GetDataResult
res of
AlreadyDataURI Text
dataUri -> do
[Tag Text]
rest <- forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall str. str -> [Attribute str] -> Tag str
TagOpen Text
"link"
((Text
"href",Text
dataUri) forall a. a -> [a] -> [a]
: [(Text
x,Text
y) | (Text
x,Text
y) <- [(Text, Text)]
as, Text
x forall a. Eq a => a -> a -> Bool
/= Text
"href"]) forall a. a -> [a] -> [a]
:
[Tag Text]
rest
Fetched (Text
mime, ByteString
bs)
| Text
"text/css" Text -> Text -> Bool
`T.isPrefixOf` Text
mime
Bool -> Bool -> Bool
&& Text -> Bool
T.null (forall str.
(Show str, Eq str, StringLike str) =>
str -> Tag str -> str
fromAttrib Text
"media" Tag Text
t)
Bool -> Bool -> Bool
&& Bool -> Bool
not (ByteString
"</" ByteString -> ByteString -> Bool
`B.isInfixOf` ByteString
bs) -> do
[Tag Text]
rest <- forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags forall a b. (a -> b) -> a -> b
$
forall a. (a -> Bool) -> [a] -> [a]
dropWhile (forall a. Eq a => a -> a -> Bool
==forall str. str -> Tag str
TagClose Text
"link") [Tag Text]
ts
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$
forall str. str -> [Attribute str] -> Tag str
TagOpen Text
"style" [(Text
"type", Text
"text/css")]
forall a. a -> [a] -> [a]
: forall str. str -> Tag str
TagText (ByteString -> Text
toText ByteString
bs)
forall a. a -> [a] -> [a]
: forall str. str -> Tag str
TagClose Text
"style"
forall a. a -> [a] -> [a]
: [Tag Text]
rest
| Bool
otherwise -> do
[Tag Text]
rest <- forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall str. str -> [Attribute str] -> Tag str
TagOpen Text
"link"
((Text
"href",(Text, ByteString) -> Text
makeDataURI (Text
mime, ByteString
bs)) forall a. a -> [a] -> [a]
:
[(Text
x,Text
y) | (Text
x,Text
y) <- [(Text, Text)]
as, Text
x forall a. Eq a => a -> a -> Bool
/= Text
"href"]) forall a. a -> [a] -> [a]
: [Tag Text]
rest
CouldNotFetch PandocError
_ -> do
[Tag Text]
rest <- forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ Tag Text
tforall a. a -> [a] -> [a]
:[Tag Text]
rest
convertTags (t :: Tag Text
t@(TagOpen Text
tagname [(Text, Text)]
as):[Tag Text]
ts)
| forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
any (Text -> (Text, Text) -> Bool
isSourceAttribute Text
tagname) [(Text, Text)]
as
= do
[(Text, Text)]
as' <- forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM forall {m :: * -> *}.
PandocMonad m =>
(Text, Text) -> m (Text, Text)
processAttribute [(Text, Text)]
as
[Tag Text]
rest <- forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall str. str -> [Attribute str] -> Tag str
TagOpen Text
tagname [(Text, Text)]
as' forall a. a -> [a] -> [a]
: [Tag Text]
rest
where processAttribute :: (Text, Text) -> m (Text, Text)
processAttribute (Text
x,Text
y) =
if Text -> (Text, Text) -> Bool
isSourceAttribute Text
tagname (Text
x,Text
y)
then do
GetDataResult
res <- forall (m :: * -> *).
PandocMonad m =>
Text -> Text -> m GetDataResult
getData (forall str.
(Show str, Eq str, StringLike str) =>
str -> Tag str -> str
fromAttrib Text
"type" Tag Text
t) Text
y
case GetDataResult
res of
AlreadyDataURI Text
enc -> forall (m :: * -> *) a. Monad m => a -> m a
return (Text
x, Text
enc)
Fetched (Text
mt,ByteString
bs) -> forall (m :: * -> *) a. Monad m => a -> m a
return (Text
x, (Text, ByteString) -> Text
makeDataURI (Text
mt,ByteString
bs))
CouldNotFetch PandocError
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return (Text
x, Text
y)
else forall (m :: * -> *) a. Monad m => a -> m a
return (Text
x,Text
y)
convertTags (Tag Text
t:[Tag Text]
ts) = (Tag Text
tforall a. a -> [a] -> [a]
:) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
ts
cssURLs :: PandocMonad m
=> FilePath -> ByteString -> m ByteString
cssURLs :: forall (m :: * -> *).
PandocMonad m =>
String -> ByteString -> m ByteString
cssURLs String
d ByteString
orig = do
Either ParseError ByteString
res <- forall s (m :: * -> *) t u a.
Stream s m t =>
ParsecT s u m a -> u -> String -> s -> m (Either ParseError a)
runParserT (forall (m :: * -> *).
PandocMonad m =>
String -> ParsecT ByteString () m ByteString
parseCSSUrls String
d) () String
"css" ByteString
orig
case Either ParseError ByteString
res of
Left ParseError
e -> do
forall (m :: * -> *). PandocMonad m => LogMessage -> m ()
report forall a b. (a -> b) -> a -> b
$ Text -> LogMessage
CouldNotParseCSS forall a b. (a -> b) -> a -> b
$ String -> Text
T.pack forall a b. (a -> b) -> a -> b
$ forall a. Show a => a -> String
show ParseError
e
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
orig
Right ByteString
bs -> forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
bs
parseCSSUrls :: PandocMonad m
=> FilePath -> ParsecT ByteString () m ByteString
parseCSSUrls :: forall (m :: * -> *).
PandocMonad m =>
String -> ParsecT ByteString () m ByteString
parseCSSUrls String
d = [ByteString] -> ByteString
B.concat forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s u (m :: * -> *) a. ParsecT s u m a -> ParsecT s u m [a]
P.many
(forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m ByteString
pCSSWhite forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m ByteString
pCSSComment forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> forall (m :: * -> *).
PandocMonad m =>
String -> ParsecT ByteString () m ByteString
pCSSImport String
d forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> forall (m :: * -> *).
PandocMonad m =>
String -> ParsecT ByteString () m ByteString
pCSSUrl String
d forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m ByteString
pCSSOther)
pCSSImport :: PandocMonad m
=> FilePath -> ParsecT ByteString () m ByteString
pCSSImport :: forall (m :: * -> *).
PandocMonad m =>
String -> ParsecT ByteString () m ByteString
pCSSImport String
d = forall s u (m :: * -> *) a. ParsecT s u m a -> ParsecT s u m a
P.try forall a b. (a -> b) -> a -> b
$ do
forall s (m :: * -> *) u.
Stream s m Char =>
String -> ParsecT s u m String
P.string String
"@import"
forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m ()
P.spaces
Either ByteString (Text, ByteString)
res <- (forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m (Text, ByteString)
pQuoted forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m (Text, ByteString)
pUrl) forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall (m :: * -> *).
PandocMonad m =>
String
-> (Text, ByteString)
-> ParsecT ByteString () m (Either ByteString (Text, ByteString))
handleCSSUrl String
d
forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m ()
P.spaces
forall s (m :: * -> *) u.
Stream s m Char =>
Char -> ParsecT s u m Char
P.char Char
';'
forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m ()
P.spaces
case Either ByteString (Text, ByteString)
res of
Left ByteString
b -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ String -> ByteString
B.pack String
"@import " forall a. Semigroup a => a -> a -> a
<> ByteString
b
Right (Text
_, ByteString
b) -> forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
b
pCSSWhite :: PandocMonad m => ParsecT ByteString () m ByteString
pCSSWhite :: forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m ByteString
pCSSWhite = Char -> ByteString
B.singleton forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m Char
P.space forall (f :: * -> *) a b. Applicative f => f a -> f b -> f a
<* forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m ()
P.spaces
pCSSComment :: PandocMonad m => ParsecT ByteString () m ByteString
= forall s u (m :: * -> *) a. ParsecT s u m a -> ParsecT s u m a
P.try forall a b. (a -> b) -> a -> b
$ do
forall s (m :: * -> *) u.
Stream s m Char =>
String -> ParsecT s u m String
P.string String
"/*"
forall s (m :: * -> *) t u a end.
Stream s m t =>
ParsecT s u m a -> ParsecT s u m end -> ParsecT s u m [a]
P.manyTill forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m Char
P.anyChar (forall s u (m :: * -> *) a. ParsecT s u m a -> ParsecT s u m a
P.try (forall s (m :: * -> *) u.
Stream s m Char =>
String -> ParsecT s u m String
P.string String
"*/"))
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
B.empty
pCSSOther :: PandocMonad m => ParsecT ByteString () m ByteString
pCSSOther :: forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m ByteString
pCSSOther =
(String -> ByteString
B.pack forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s (m :: * -> *) t u a.
Stream s m t =>
ParsecT s u m a -> ParsecT s u m [a]
P.many1 (forall s (m :: * -> *) u.
Stream s m Char =>
String -> ParsecT s u m Char
P.noneOf String
"u/ \n\r\t")) forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|>
(Char -> ByteString
B.singleton forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s (m :: * -> *) u.
Stream s m Char =>
Char -> ParsecT s u m Char
P.char Char
'u') forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|>
(Char -> ByteString
B.singleton forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s (m :: * -> *) u.
Stream s m Char =>
Char -> ParsecT s u m Char
P.char Char
'/')
pCSSUrl :: PandocMonad m
=> FilePath -> ParsecT ByteString () m ByteString
pCSSUrl :: forall (m :: * -> *).
PandocMonad m =>
String -> ParsecT ByteString () m ByteString
pCSSUrl String
d = forall s u (m :: * -> *) a. ParsecT s u m a -> ParsecT s u m a
P.try forall a b. (a -> b) -> a -> b
$ do
Either ByteString (Text, ByteString)
res <- forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m (Text, ByteString)
pUrl forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall (m :: * -> *).
PandocMonad m =>
String
-> (Text, ByteString)
-> ParsecT ByteString () m (Either ByteString (Text, ByteString))
handleCSSUrl String
d
case Either ByteString (Text, ByteString)
res of
Left ByteString
b -> forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
b
Right (Text
mt,ByteString
b) -> do
let enc :: Text
enc = (Text, ByteString) -> Text
makeDataURI (Text
mt, ByteString
b)
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ Text -> ByteString
fromText forall a b. (a -> b) -> a -> b
$ Text
"url(" forall a. Semigroup a => a -> a -> a
<> Text
enc forall a. Semigroup a => a -> a -> a
<> Text
")"
pQuoted :: PandocMonad m
=> ParsecT ByteString () m (T.Text, ByteString)
pQuoted :: forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m (Text, ByteString)
pQuoted = forall s u (m :: * -> *) a. ParsecT s u m a -> ParsecT s u m a
P.try forall a b. (a -> b) -> a -> b
$ do
Char
quote <- forall s (m :: * -> *) u.
Stream s m Char =>
String -> ParsecT s u m Char
P.oneOf String
"\"'"
Text
url <- String -> Text
T.pack forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s (m :: * -> *) t u a end.
Stream s m t =>
ParsecT s u m a -> ParsecT s u m end -> ParsecT s u m [a]
P.manyTill forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m Char
P.anyChar (forall s (m :: * -> *) u.
Stream s m Char =>
Char -> ParsecT s u m Char
P.char Char
quote)
let fallback :: ByteString
fallback = Text -> ByteString
fromText forall a b. (a -> b) -> a -> b
$ Char -> Text
T.singleton Char
quote forall a. Semigroup a => a -> a -> a
<> Text -> Text
trim Text
url forall a. Semigroup a => a -> a -> a
<> Char -> Text
T.singleton Char
quote
forall (m :: * -> *) a. Monad m => a -> m a
return (Text
url, ByteString
fallback)
pUrl :: PandocMonad m
=> ParsecT ByteString () m (T.Text, ByteString)
pUrl :: forall (m :: * -> *).
PandocMonad m =>
ParsecT ByteString () m (Text, ByteString)
pUrl = forall s u (m :: * -> *) a. ParsecT s u m a -> ParsecT s u m a
P.try forall a b. (a -> b) -> a -> b
$ do
forall s (m :: * -> *) u.
Stream s m Char =>
String -> ParsecT s u m String
P.string String
"url("
forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m ()
P.spaces
Maybe Char
quote <- forall s (m :: * -> *) t a u.
Stream s m t =>
a -> ParsecT s u m a -> ParsecT s u m a
P.option forall a. Maybe a
Nothing (forall a. a -> Maybe a
Just forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s (m :: * -> *) u.
Stream s m Char =>
String -> ParsecT s u m Char
P.oneOf String
"\"'")
Text
url <- String -> Text
T.pack forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall s (m :: * -> *) t u a end.
Stream s m t =>
ParsecT s u m a -> ParsecT s u m end -> ParsecT s u m [a]
P.manyTill forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m Char
P.anyChar (forall b a. b -> (a -> b) -> Maybe a -> b
maybe (forall s (m :: * -> *) t u a.
Stream s m t =>
ParsecT s u m a -> ParsecT s u m a
P.lookAhead (forall s (m :: * -> *) u.
Stream s m Char =>
Char -> ParsecT s u m Char
P.char Char
')')) forall s (m :: * -> *) u.
Stream s m Char =>
Char -> ParsecT s u m Char
P.char Maybe Char
quote)
forall s (m :: * -> *) u. Stream s m Char => ParsecT s u m ()
P.spaces
forall s (m :: * -> *) u.
Stream s m Char =>
Char -> ParsecT s u m Char
P.char Char
')'
let fallback :: ByteString
fallback = Text -> ByteString
fromText (Text
"url(" forall a. Semigroup a => a -> a -> a
<> forall b a. b -> (a -> b) -> Maybe a -> b
maybe Text
"" Char -> Text
T.singleton Maybe Char
quote forall a. Semigroup a => a -> a -> a
<> Text -> Text
trim Text
url forall a. Semigroup a => a -> a -> a
<>
forall b a. b -> (a -> b) -> Maybe a -> b
maybe Text
"" Char -> Text
T.singleton Maybe Char
quote forall a. Semigroup a => a -> a -> a
<> Text
")")
forall (m :: * -> *) a. Monad m => a -> m a
return (Text
url, ByteString
fallback)
handleCSSUrl :: PandocMonad m
=> FilePath -> (T.Text, ByteString)
-> ParsecT ByteString () m
(Either ByteString (MimeType, ByteString))
handleCSSUrl :: forall (m :: * -> *).
PandocMonad m =>
String
-> (Text, ByteString)
-> ParsecT ByteString () m (Either ByteString (Text, ByteString))
handleCSSUrl String
d (Text
url, ByteString
fallback) =
case (Char -> Bool) -> String -> String
escapeURIString (forall a. Eq a => a -> a -> Bool
/=Char
'|') (Text -> String
T.unpack forall a b. (a -> b) -> a -> b
$ Text -> Text
trim Text
url) of
Char
'#':String
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. a -> Either a b
Left ByteString
fallback
Char
'd':Char
'a':Char
't':Char
'a':Char
':':String
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. a -> Either a b
Left ByteString
fallback
String
u -> do let url' :: Text
url' = if Text -> Bool
isURI (String -> Text
T.pack String
u) then String -> Text
T.pack String
u else String -> Text
T.pack (String
d String -> String -> String
</> String
u)
GetDataResult
res <- forall (t :: (* -> *) -> * -> *) (m :: * -> *) a.
(MonadTrans t, Monad m) =>
m a -> t m a
lift forall a b. (a -> b) -> a -> b
$ forall (m :: * -> *).
PandocMonad m =>
Text -> Text -> m GetDataResult
getData Text
"" Text
url'
case GetDataResult
res of
AlreadyDataURI Text
uri -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. a -> Either a b
Left (Text -> ByteString
fromText forall a b. (a -> b) -> a -> b
$ Text
"url(" forall a. Semigroup a => a -> a -> a
<> Text
uri forall a. Semigroup a => a -> a -> a
<> Text
")")
Fetched (Text
mt', ByteString
raw) -> do
(Text
mt, ByteString
b) <- if Text
"text/css" Text -> Text -> Bool
`T.isPrefixOf` Text
mt'
then (Text
"text/css",) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *).
PandocMonad m =>
String -> ByteString -> m ByteString
cssURLs String
d ByteString
raw
else forall (m :: * -> *) a. Monad m => a -> m a
return (Text
mt', ByteString
raw)
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. b -> Either a b
Right (Text
mt, ByteString
b)
CouldNotFetch PandocError
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. a -> Either a b
Left ByteString
fallback
data GetDataResult =
AlreadyDataURI T.Text
| CouldNotFetch PandocError
| Fetched (MimeType, ByteString)
deriving (Int -> GetDataResult -> String -> String
[GetDataResult] -> String -> String
GetDataResult -> String
forall a.
(Int -> a -> String -> String)
-> (a -> String) -> ([a] -> String -> String) -> Show a
showList :: [GetDataResult] -> String -> String
$cshowList :: [GetDataResult] -> String -> String
show :: GetDataResult -> String
$cshow :: GetDataResult -> String
showsPrec :: Int -> GetDataResult -> String -> String
$cshowsPrec :: Int -> GetDataResult -> String -> String
Show)
getData :: PandocMonad m
=> MimeType -> T.Text
-> m GetDataResult
getData :: forall (m :: * -> *).
PandocMonad m =>
Text -> Text -> m GetDataResult
getData Text
mimetype Text
src
| Text
"data:" Text -> Text -> Bool
`T.isPrefixOf` Text
src = forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ Text -> GetDataResult
AlreadyDataURI Text
src
| Bool
otherwise = forall e (m :: * -> *) a.
MonadError e m =>
m a -> (e -> m a) -> m a
catchError m GetDataResult
fetcher forall {m :: * -> *}.
PandocMonad m =>
PandocError -> m GetDataResult
handler
where
fetcher :: m GetDataResult
fetcher = do
let ext :: Text
ext = Text -> Text
T.toLower forall a b. (a -> b) -> a -> b
$ String -> Text
T.pack forall a b. (a -> b) -> a -> b
$ String -> String
takeExtension forall a b. (a -> b) -> a -> b
$ Text -> String
T.unpack Text
src
(ByteString
raw, Maybe Text
respMime) <- forall (m :: * -> *).
PandocMonad m =>
Text -> m (ByteString, Maybe Text)
fetchItem Text
src
let raw' :: ByteString
raw' = if Text
ext forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [Text
".gz", Text
".svgz"]
then [ByteString] -> ByteString
B.concat forall a b. (a -> b) -> a -> b
$ ByteString -> [ByteString]
L.toChunks forall a b. (a -> b) -> a -> b
$ ByteString -> ByteString
Gzip.decompress forall a b. (a -> b) -> a -> b
$ [ByteString] -> ByteString
L.fromChunks [ByteString
raw]
else ByteString
raw
let mime :: Text
mime = case (Text
mimetype, Maybe Text
respMime) of
(Text
"",Maybe Text
Nothing) -> Text
"application/octet-stream"
(Text
x, Maybe Text
Nothing) -> Text
x
(Text
_, Just Text
x ) -> Text
x
ByteString
result <- if Text
"text/css" Text -> Text -> Bool
`T.isPrefixOf` Text
mime
then do
[String]
oldInputs <- forall (m :: * -> *). PandocMonad m => m [String]
getInputFiles
forall (m :: * -> *). PandocMonad m => [String] -> m ()
setInputFiles [Text -> String
T.unpack Text
src]
ByteString
res <- forall (m :: * -> *).
PandocMonad m =>
String -> ByteString -> m ByteString
cssURLs (String -> String
takeDirectory forall a b. (a -> b) -> a -> b
$ Text -> String
T.unpack Text
src) ByteString
raw'
forall (m :: * -> *). PandocMonad m => [String] -> m ()
setInputFiles [String]
oldInputs
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
res
else forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
raw'
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ (Text, ByteString) -> GetDataResult
Fetched (Text
mime, ByteString
result)
handler :: PandocError -> m GetDataResult
handler PandocError
e = case PandocError
e of
PandocResourceNotFound Text
r -> do
forall (m :: * -> *). PandocMonad m => LogMessage -> m ()
report forall a b. (a -> b) -> a -> b
$ Text -> Text -> LogMessage
CouldNotFetchResource Text
r Text
""
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ PandocError -> GetDataResult
CouldNotFetch PandocError
e
PandocHttpError Text
u HttpException
er -> do
forall (m :: * -> *). PandocMonad m => LogMessage -> m ()
report forall a b. (a -> b) -> a -> b
$ Text -> Text -> LogMessage
CouldNotFetchResource Text
u (forall a. Show a => a -> Text
tshow HttpException
er)
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ PandocError -> GetDataResult
CouldNotFetch PandocError
e
PandocError
_ -> forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError PandocError
e
makeSelfContained :: PandocMonad m => T.Text -> m T.Text
makeSelfContained :: forall (m :: * -> *). PandocMonad m => Text -> m Text
makeSelfContained Text
inp = do
let tags :: [Tag Text]
tags = forall str. StringLike str => str -> [Tag str]
parseTags Text
inp
[Tag Text]
out' <- forall (m :: * -> *). PandocMonad m => [Tag Text] -> m [Tag Text]
convertTags [Tag Text]
tags
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ [Tag Text] -> Text
renderTags' [Tag Text]
out'