| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Network.HTTP.Download.Verified
- verifiedDownload :: (MonadReader env m, HasHttpManager env, MonadIO m) => DownloadRequest -> Path Abs File -> (Maybe Integer -> Sink ByteString (ReaderT env IO) ()) -> m Bool
- recoveringHttp :: (MonadMask m, MonadIO m) => RetryPolicy -> m a -> m a
- data DownloadRequest = DownloadRequest {}
- drRetryPolicyDefault :: RetryPolicy
- data HashCheck = forall a . (Show a, HashAlgorithm a) => HashCheck {}
- data CheckHexDigest
- type LengthCheck = Int
- data VerifiedDownloadException
Documentation
Arguments
| :: (MonadReader env m, HasHttpManager env, MonadIO m) | |
| => DownloadRequest | |
| -> Path Abs File | destination |
| -> (Maybe Integer -> Sink ByteString (ReaderT env IO) ()) | custom hook to observe progress |
| -> m Bool | Whether a download was performed |
Copied and extended version of Network.HTTP.Download.download.
Has the following additional features: * Verifies that response content-length header (if present) matches expected length * Limits the download to (close to) the expected # of bytes * Verifies that the expected # bytes were downloaded (not too few) * Verifies md5 if response includes content-md5 header * Verifies the expected hashes
Throws VerifiedDownloadException. Throws IOExceptions related to file system operations. Throws HttpException.
recoveringHttp :: (MonadMask m, MonadIO m) => RetryPolicy -> m a -> m a Source
data DownloadRequest Source
A request together with some checks to perform.
Constructors
| DownloadRequest | |
Fields | |
drRetryPolicyDefault :: RetryPolicy Source
Default to retrying thrice with a short constant delay.
Constructors
| forall a . (Show a, HashAlgorithm a) => HashCheck | |
Fields | |
data CheckHexDigest Source
Constructors
| CheckHexDigestString String | |
| CheckHexDigestByteString ByteString | |
| CheckHexDigestHeader ByteString |
Instances
type LengthCheck = Int Source
data VerifiedDownloadException Source
An exception regarding verification of a download.