git-annex/Assistant/WebApp/Configurators/IA.hs
2015-01-21 12:50:09 -04:00

209 lines
6.8 KiB
Haskell

{- git-annex assistant webapp configurators for Internet Archive
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE CPP, QuasiQuotes, TemplateHaskell, OverloadedStrings #-}
module Assistant.WebApp.Configurators.IA where
import Assistant.WebApp.Common
import qualified Assistant.WebApp.Configurators.AWS as AWS
#ifdef WITH_S3
import qualified Remote.S3 as S3
import qualified Remote.Helper.AWS as AWS
import Assistant.WebApp.MakeRemote
#endif
import qualified Remote
import qualified Types.Remote as Remote
import Types.StandardGroups
import Types.Remote (RemoteConfig)
import Logs.Remote
import qualified Annex.Url as Url
import Creds
import Assistant.Gpg
import qualified Data.Text as T
import qualified Data.Map as M
import Data.Char
import Network.URI
iaConfigurator :: Widget -> Handler Html
iaConfigurator = page "Add an Internet Archive repository" (Just Configuration)
data IAInput = IAInput
{ accessKeyID :: Text
, secretAccessKey :: Text
, mediaType :: MediaType
, itemName :: Text
}
extractCreds :: IAInput -> AWS.AWSCreds
extractCreds i = AWS.AWSCreds (accessKeyID i) (secretAccessKey i)
{- IA defines only a few media types currently, or the media type
- may be omitted
-
- We add a few other common types, mapped to what we've been told
- is the closest match.
-}
data MediaType = MediaImages | MediaAudio | MediaVideo | MediaText | MediaSoftware | MediaOmitted
deriving (Eq, Ord, Enum, Bounded)
{- Format a MediaType for entry into the IA metadata -}
formatMediaType :: MediaType -> String
formatMediaType MediaText = "texts"
formatMediaType MediaImages = "image"
formatMediaType MediaSoftware = "software"
formatMediaType MediaVideo = "movies"
formatMediaType MediaAudio = "audio"
formatMediaType MediaOmitted = ""
{- A default collection to use for each Mediatype. -}
collectionMediaType :: MediaType -> Maybe String
collectionMediaType MediaText = Just "opensource"
collectionMediaType MediaImages = Just "opensource" -- not ideal
collectionMediaType MediaSoftware = Just "opensource" -- not ideal
collectionMediaType MediaVideo = Just "opensource_movies"
collectionMediaType MediaAudio = Just "opensource_audio"
collectionMediaType MediaOmitted = Just "opensource"
{- Format a MediaType for user display. -}
showMediaType :: MediaType -> String
showMediaType MediaText = "texts"
showMediaType MediaImages = "photos & images"
showMediaType MediaSoftware = "software"
showMediaType MediaVideo = "videos & movies"
showMediaType MediaAudio = "audio & music"
showMediaType MediaOmitted = "other"
iaInputAForm :: Maybe CredPair -> MkAForm IAInput
iaInputAForm defcreds = IAInput
<$> accessKeyIDFieldWithHelp (T.pack . fst <$> defcreds)
<*> AWS.secretAccessKeyField (T.pack . snd <$> defcreds)
<*> areq (selectFieldList mediatypes) (bfs "Media Type") (Just MediaOmitted)
<*> areq (textField `withExpandableNote` ("Help", itemNameHelp)) (bfs "Item Name") Nothing
where
mediatypes :: [(Text, MediaType)]
mediatypes = map (\t -> (T.pack $ showMediaType t, t)) [minBound..]
itemNameHelp :: Widget
itemNameHelp = [whamlet|
<div>
Each item stored in the Internet Archive must have a unique name.
<div>
Once you create the item, a special directory will appear #
with a name matching the item name. Files you put in that directory #
will be uploaded to your Internet Archive item.
|]
iaCredsAForm :: Maybe CredPair -> MkAForm AWS.AWSCreds
iaCredsAForm defcreds = AWS.AWSCreds
<$> accessKeyIDFieldWithHelp (T.pack . fst <$> defcreds)
<*> AWS.secretAccessKeyField (T.pack . snd <$> defcreds)
#ifdef WITH_S3
previouslyUsedIACreds :: Annex (Maybe CredPair)
previouslyUsedIACreds = previouslyUsedCredPair AWS.creds S3.remote $
S3.configIA . Remote.config
#endif
accessKeyIDFieldWithHelp :: Maybe Text -> MkAForm Text
accessKeyIDFieldWithHelp = AWS.accessKeyIDField help
where
help = [whamlet|
<a href="http://archive.org/account/s3.php">
Get Internet Archive access keys
|]
getAddIAR :: Handler Html
getAddIAR = postAddIAR
postAddIAR :: Handler Html
#ifdef WITH_S3
postAddIAR = iaConfigurator $ do
defcreds <- liftAnnex previouslyUsedIACreds
((result, form), enctype) <- liftH $
runFormPostNoToken $ renderBootstrap3 bootstrapFormLayout $ iaInputAForm defcreds
case result of
FormSuccess input -> liftH $ do
let name = escapeBucket $ T.unpack $ itemName input
AWS.makeAWSRemote initSpecialRemote S3.remote PublicGroup (extractCreds input) name $
M.fromList $ catMaybes
[ Just $ configureEncryption NoEncryption
, Just ("type", "S3")
, Just ("host", S3.iaHost)
, Just ("bucket", escapeHeader name)
, Just ("x-archive-meta-title", escapeHeader $ T.unpack $ itemName input)
, if mediaType input == MediaOmitted
then Nothing
else Just ("x-archive-mediatype", formatMediaType $ mediaType input)
, (,) <$> pure "x-archive-meta-collection" <*> collectionMediaType (mediaType input)
-- Make item show up ASAP.
, Just ("x-archive-interactive-priority", "1")
, Just ("preferreddir", name)
]
_ -> $(widgetFile "configurators/addia")
#else
postAddIAR = error "S3 not supported by this build"
#endif
getEnableIAR :: UUID -> Handler Html
getEnableIAR = postEnableIAR
postEnableIAR :: UUID -> Handler Html
#ifdef WITH_S3
postEnableIAR = iaConfigurator . enableIARemote
#else
postEnableIAR _ = error "S3 not supported by this build"
#endif
#ifdef WITH_S3
enableIARemote :: UUID -> Widget
enableIARemote uuid = do
defcreds <- liftAnnex previouslyUsedIACreds
((result, form), enctype) <- liftH $
runFormPostNoToken $ renderBootstrap3 bootstrapFormLayout $ iaCredsAForm defcreds
case result of
FormSuccess creds -> liftH $ do
m <- liftAnnex readRemoteLog
let name = fromJust $ M.lookup "name" $
fromJust $ M.lookup uuid m
AWS.makeAWSRemote enableSpecialRemote S3.remote PublicGroup creds name M.empty
_ -> do
description <- liftAnnex $
T.pack <$> Remote.prettyUUID uuid
$(widgetFile "configurators/enableia")
#endif
{- Convert a description into a bucket item name, which will also be
- used as the repository name, and the preferreddir.
- IA seems to need only lower case, and no spaces. -}
escapeBucket :: String -> String
escapeBucket = map toLower . replace " " "-"
{- IA S3 API likes headers to be URI escaped, escaping spaces looks ugly. -}
escapeHeader :: String -> String
escapeHeader = escapeURIString (\c -> isUnescapedInURI c && c /= ' ')
getRepoInfo :: RemoteConfig -> Widget
getRepoInfo c = do
uo <- liftAnnex Url.getUrlOptions
exists <- liftIO $ catchDefaultIO False $ fst <$> Url.exists url uo
[whamlet|
<a href="#{url}">
Internet Archive item
$if (not exists)
<p>
The page will only be available once some files #
have been uploaded, and the Internet Archive has processed them.
|]
where
bucket = fromMaybe "" $ M.lookup "bucket" c
#ifdef WITH_S3
url = S3.iaItemUrl bucket
#else
url = ""
#endif