Removed dependency on conduit.

* http-conduit flag is now https.
* Instead of http-conduit, we depend on http-client and http-client-tls.

INSTALL

@@ -116,9 +116,8 @@ assume that the pandoc source directory is your working directory.
 
           cabal install hsb2hs
 
-    - `http-conduit`:  use the `http-conduit` library to fetch external
-      resources (default yes -- without this, pandoc cannot make SSL
-      connections)
+    - `https`:  enable support for downloading resources over https
+      (using the `http-client` and `http-client-tls` libraries).
 
 3.  Build:
 

pandoc.cabal

@@ -196,8 +196,8 @@ Flag embed_data_files
   Description:   Embed data files in binary for relocatable executable.
   Default:       False
 
-Flag http-conduit
-  Description:   Enable downloading of resources over https.
+Flag https
+  Description:   Enable support for downloading of resources over https.
   Default:       True
 
 Library
@@ -239,10 +239,11 @@ Library
                  hslua >= 0.3 && < 0.4,
                  binary >= 0.5 && < 0.8
   Build-Tools:   alex, happy
-  if flag(http-conduit)
-     Build-Depends: http-conduit >= 1.9 && < 2.2,
+  if flag(https)
+     Build-Depends: http-client >= 0.3.2 && < 0.4,
+                    http-client-tls >= 0.2 && < 0.3,
                     http-types >= 0.8 && < 0.9
-     cpp-options:   -DHTTP_CONDUIT
+     cpp-options:   -DHTTP_CLIENT
   if flag(embed_data_files)
      cpp-options:   -DEMBED_DATA_FILES
      -- Build-Tools:   hsb2hs -- not yet recognized by cabal

src/Text/Pandoc/Shared.hs

@@ -118,11 +118,13 @@ import System.FilePath ( joinPath, splitDirectories )
 #else
 import Paths_pandoc (getDataFileName)
 #endif
-#ifdef HTTP_CONDUIT
+#ifdef HTTP_CLIENT
 import Data.ByteString.Lazy (toChunks)
-import Network.HTTP.Conduit (httpLbs, parseUrl, withManager,
-                             responseBody, responseHeaders, addProxy,
-                             Request(port,host))
+import Network.HTTP.Client (httpLbs, parseUrl, withManager,
+                            responseBody, responseHeaders,
+                            Request(port,host))
+import Network.HTTP.Client.Internal (addProxy)
+import Network.HTTP.Client.TLS (tlsManagerSettings)
 import System.Environment (getEnv)
 import Network.HTTP.Types.Header ( hContentType)
 import Network (withSocketsDo)
@@ -665,7 +667,7 @@ openURL u
     let mime     = takeWhile (/=',') $ drop 5 u
         contents = B8.pack $ unEscapeString $ drop 1 $ dropWhile (/=',') u
     in  return $ Right (decodeLenient contents, Just mime)
-#ifdef HTTP_CONDUIT
+#ifdef HTTP_CLIENT
   | otherwise = withSocketsDo $ E.try $ do
      req <- parseUrl u
      (proxy :: Either E.SomeException String) <- E.try $ getEnv "http_proxy"
@@ -674,7 +676,7 @@ openURL u
                      Right pr -> case parseUrl pr of
                                       Just r  -> addProxy (host r) (port r) req
                                       Nothing -> req
-     resp <- withManager $ httpLbs req'
+     resp <- withManager tlsManagerSettings $ httpLbs req'
      return (BS.concat $ toChunks $ responseBody resp,
              UTF8.toString `fmap` lookup hContentType (responseHeaders resp))
 #else