chore(users/Profpatsch/whatcd-resolver): Transmission & Redacted

Move the functionality into two coarse modules.

There’s still the question about whether functions that change the
database tables should be in their own storage module, but let’s see
if it gets too confusing.

Change-Id: Ied1d47b353dd4597ffea35f111f440aad22e981d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11238
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Autosubmit: Profpatsch <mail@profpatsch.de>
This commit is contained in:
Profpatsch 2024-03-17 12:43:05 +01:00 committed by clbot
parent 3281fb9132
commit c2856dc2cd
5 changed files with 858 additions and 732 deletions

View file

@ -13,6 +13,8 @@ let
./src/WhatcdResolver.hs
./src/AppT.hs
./src/Html.hs
./src/Transmission.hs
./src/Redacted.hs
];
libraryHaskellDepends = [
@ -23,7 +25,6 @@ let
pkgs.haskellPackages.pa-json
pkgs.haskellPackages.pa-error-tree
pkgs.haskellPackages.pa-field-parser
pkgs.haskellPackages.pa-pretty
pkgs.haskellPackages.pa-run-command
pkgs.haskellPackages.aeson-better-errors
pkgs.haskellPackages.blaze-html
@ -40,6 +41,7 @@ let
pkgs.haskellPackages.unliftio
pkgs.haskellPackages.wai-extra
pkgs.haskellPackages.warp
pkgs.haskellPackages.punycode
];
isExecutable = true;

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@ -0,0 +1,549 @@
{-# LANGUAGE QuasiQuotes #-}
module Redacted where
import AppT
import Control.Monad.Logger.CallStack
import Control.Monad.Reader
import Data.Aeson qualified as Json
import Data.Aeson.BetterErrors qualified as Json
import Data.Aeson.KeyMap qualified as KeyMap
import Data.Error.Tree
import Data.List qualified as List
import Database.PostgreSQL.Simple (Binary (Binary), Only (..))
import Database.PostgreSQL.Simple.SqlQQ (sql)
import Database.PostgreSQL.Simple.Types (PGArray (PGArray))
import FieldParser qualified as Field
import GHC.Records (HasField (..))
import Json qualified
import Label
import MyPrelude
import Network.HTTP.Client.Conduit qualified as Http
import Network.HTTP.Simple qualified as Http
import Network.HTTP.Types
import Network.Wai.Parse qualified as Wai
import OpenTelemetry.Trace qualified as Otel hiding (getTracer, inSpan, inSpan')
import Postgres.Decoder qualified as Dec
import Postgres.MonadPostgres
import Pretty
import RunCommand (runCommandExpect0)
import Prelude hiding (span)
redactedSearch ::
(MonadLogger m, MonadThrow m, MonadOtel m) =>
[(ByteString, ByteString)] ->
Json.Parse ErrorTree a ->
m a
redactedSearch advanced parser =
inSpan "Redacted API Search" $
redactedApiRequestJson
( T2
(label @"action" "browse")
(label @"actionArgs" ((advanced <&> second Just)))
)
parser
redactedGetTorrentFile ::
( MonadLogger m,
MonadThrow m,
HasField "torrentId" dat Int,
MonadOtel m
) =>
dat ->
m ByteString
redactedGetTorrentFile dat = inSpan' "Redacted Get Torrent File" $ \span -> do
req <-
mkRedactedApiRequest
( T2
(label @"action" "download")
( label @"actionArgs"
[ ("id", Just (dat.torrentId & showToText @Int & textToBytesUtf8))
-- try using tokens as long as we have them (TODO: what if theres no tokens left?
-- ANSWER: it breaks:
-- responseBody = "{\"status\":\"failure\",\"error\":\"You do not have any freeleech tokens left. Please use the regular DL link.\"}",
-- ("usetoken", Just "1")
]
)
)
httpTorrent span req
-- fix
-- ( \io -> do
-- logInfo "delay"
-- liftIO $ threadDelay 10_000_000
-- io
-- )
exampleSearch :: (MonadThrow m, MonadLogger m, MonadPostgres m, MonadOtel m) => m (Transaction m ())
exampleSearch = do
t1 <-
redactedSearchAndInsert
[ ("searchstr", "cherish"),
("artistname", "kirinji"),
-- ("year", "1982"),
-- ("format", "MP3"),
-- ("releasetype", "album"),
("order_by", "year")
]
t3 <-
redactedSearchAndInsert
[ ("searchstr", "mouss et hakim"),
("artistname", "mouss et hakim"),
-- ("year", "1982"),
-- ("format", "MP3"),
-- ("releasetype", "album"),
("order_by", "year")
]
t2 <-
redactedSearchAndInsert
[ ("searchstr", "thriller"),
("artistname", "michael jackson"),
-- ("year", "1982"),
-- ("format", "MP3"),
-- ("releasetype", "album"),
("order_by", "year")
]
pure (t1 >> t2 >> t3)
-- | Do the search, return a transaction that inserts all results from all pages of the search.
redactedSearchAndInsert ::
forall m.
( MonadLogger m,
MonadPostgres m,
MonadThrow m,
MonadOtel m
) =>
[(ByteString, ByteString)] ->
m (Transaction m ())
redactedSearchAndInsert extraArguments = do
logInfo [fmt|Doing redacted search with arguments: {showPretty extraArguments}|]
-- The first search returns the amount of pages, so we use that to query all results piece by piece.
firstPage <- go Nothing
let remainingPages = firstPage.pages - 1
logInfo [fmt|Got the first page, found {remainingPages} more pages|]
let otherPagesNum = [(2 :: Natural) .. remainingPages]
otherPages <- traverse go (Just <$> otherPagesNum)
pure $
(firstPage : otherPages)
& concatMap (.tourGroups)
& \case
IsNonEmpty tgs -> tgs & insertTourGroupsAndTorrents
IsEmpty -> pure ()
where
go mpage =
redactedSearch
( extraArguments
-- pass the page (for every search but the first one)
<> ifExists (mpage <&> (\page -> [("page", (page :: Natural) & showToText & textToBytesUtf8)]))
)
( do
status <- Json.key "status" Json.asText
when (status /= "success") $ do
Json.throwCustomError [fmt|Status was not "success", but {status}|]
Json.key "response" $ do
pages <-
Json.keyMay "pages" (Field.toJsonParser (Field.mapError singleError $ Field.jsonNumber >>> Field.boundedScientificIntegral @Int "not an Integer" >>> Field.integralToNatural))
-- in case the field is missing, lets assume there is only one page
<&> fromMaybe 1
Json.key "results" $ do
tourGroups <-
label @"tourGroups"
<$> ( Json.eachInArray $ do
groupId <- Json.keyLabel @"groupId" "groupId" (Json.asIntegral @_ @Int)
groupName <- Json.keyLabel @"groupName" "groupName" Json.asText
fullJsonResult <-
label @"fullJsonResult"
<$> ( Json.asObject
-- remove torrents cause they are inserted separately below
<&> KeyMap.filterWithKey (\k _ -> k /= "torrents")
<&> Json.Object
)
let tourGroup = T3 groupId groupName fullJsonResult
torrents <- Json.keyLabel @"torrents" "torrents" $
Json.eachInArray $ do
torrentId <- Json.keyLabel @"torrentId" "torrentId" (Json.asIntegral @_ @Int)
fullJsonResultT <- label @"fullJsonResult" <$> Json.asValue
pure $ T2 torrentId fullJsonResultT
pure (T2 (label @"tourGroup" tourGroup) torrents)
)
pure
( T2
(label @"pages" pages)
tourGroups
)
)
insertTourGroupsAndTorrents ::
NonEmpty
( T2
"tourGroup"
(T3 "groupId" Int "groupName" Text "fullJsonResult" Json.Value)
"torrents"
[T2 "torrentId" Int "fullJsonResult" Json.Value]
) ->
Transaction m ()
insertTourGroupsAndTorrents dat = do
let tourGroups = dat <&> (.tourGroup)
let torrents = dat <&> (.torrents)
insertTourGroups tourGroups
>>= ( \res ->
insertTorrents $
zipT2 $
T2
(label @"torrentGroupIdPg" $ res <&> (.tourGroupIdPg))
(label @"torrents" (torrents & toList))
)
insertTourGroups ::
NonEmpty
( T3
"groupId"
Int
"groupName"
Text
"fullJsonResult"
Json.Value
) ->
Transaction m [Label "tourGroupIdPg" Int]
insertTourGroups dats = do
let groupNames =
dats <&> \dat -> [fmt|{dat.groupId}: {dat.groupName}|]
logInfo [fmt|Inserting tour groups for {showPretty groupNames}|]
_ <-
execute
[fmt|
DELETE FROM redacted.torrent_groups
WHERE group_id = ANY (?::integer[])
|]
(Only $ (dats <&> (.groupId) & toList & PGArray :: PGArray Int))
executeManyReturningWith
[fmt|
INSERT INTO redacted.torrent_groups (
group_id, group_name, full_json_result
) VALUES
( ?, ? , ? )
ON CONFLICT (group_id) DO UPDATE SET
group_id = excluded.group_id,
group_name = excluded.group_name,
full_json_result = excluded.full_json_result
RETURNING (id)
|]
( dats <&> \dat ->
( dat.groupId,
dat.groupName,
dat.fullJsonResult
)
)
(label @"tourGroupIdPg" <$> Dec.fromField @Int)
insertTorrents ::
[ T2
"torrentGroupIdPg"
Int
"torrents"
[T2 "torrentId" Int "fullJsonResult" Json.Value]
] ->
Transaction m ()
insertTorrents dats = do
_ <-
execute
[sql|
DELETE FROM redacted.torrents_json
WHERE torrent_id = ANY (?::integer[])
|]
( Only $
PGArray
[ torrent.torrentId
| dat <- dats,
torrent <- dat.torrents
]
)
execute
[sql|
INSERT INTO redacted.torrents_json
( torrent_group
, torrent_id
, full_json_result)
SELECT *
FROM UNNEST(
?::integer[]
, ?::integer[]
, ?::jsonb[]
) AS inputs(
torrent_group
, torrent_id
, full_json_result)
|]
( [ ( dat.torrentGroupIdPg :: Int,
group.torrentId :: Int,
group.fullJsonResult :: Json.Value
)
| dat <- dats,
group <- dat.torrents
]
& unzip3PGArray
)
pure ()
unzip3PGArray :: [(a1, a2, a3)] -> (PGArray a1, PGArray a2, PGArray a3)
unzip3PGArray xs = xs & unzip3 & \(a, b, c) -> (PGArray a, PGArray b, PGArray c)
redactedGetTorrentFileAndInsert ::
( HasField "torrentId" r Int,
MonadPostgres m,
MonadThrow m,
MonadLogger m,
MonadOtel m
) =>
r ->
Transaction m (Label "torrentFile" ByteString)
redactedGetTorrentFileAndInsert dat = inSpan' "Redacted Get Torrent File and Insert" $ \span -> do
bytes <- redactedGetTorrentFile dat
execute
[sql|
UPDATE redacted.torrents_json
SET torrent_file = ?::bytea
WHERE torrent_id = ?::integer
|]
( (Binary bytes :: Binary ByteString),
dat.torrentId
)
>>= assertOneUpdated span "redactedGetTorrentFileAndInsert"
>>= \() -> pure (label @"torrentFile" bytes)
getTorrentFileById ::
( MonadPostgres m,
HasField "torrentId" r Int,
MonadThrow m
) =>
r ->
Transaction m (Maybe (Label "torrentFile" ByteString))
getTorrentFileById dat = do
queryWith
[sql|
SELECT torrent_file
FROM redacted.torrents
WHERE torrent_id = ?::integer
|]
(Only $ (dat.torrentId :: Int))
(fmap @Maybe (label @"torrentFile") <$> Dec.byteaMay)
>>= ensureSingleRow
updateTransmissionTorrentHashById ::
( MonadPostgres m,
HasField "torrentId" r Int,
HasField "torrentHash" r Text
) =>
r ->
Transaction m (Label "numberOfRowsAffected" Natural)
updateTransmissionTorrentHashById dat = do
execute
[sql|
UPDATE redacted.torrents_json
SET transmission_torrent_hash = ?::text
WHERE torrent_id = ?::integer
|]
( dat.torrentHash :: Text,
dat.torrentId :: Int
)
assertOneUpdated ::
(HasField "numberOfRowsAffected" r Natural, MonadThrow m, MonadIO m) =>
Otel.Span ->
Text ->
r ->
m ()
assertOneUpdated span name x = case x.numberOfRowsAffected of
1 -> pure ()
n -> appThrowTree span ([fmt|{name :: Text}: Expected to update exactly one row, but updated {n :: Natural} row(s)|])
data TorrentData transmissionInfo = TorrentData
{ groupId :: Int,
torrentId :: Int,
seedingWeight :: Int,
torrentJson :: Json.Value,
torrentGroupJson :: T2 "artist" Text "groupName" Text,
torrentStatus :: TorrentStatus transmissionInfo
}
data TorrentStatus transmissionInfo
= NoTorrentFileYet
| NotInTransmissionYet
| InTransmission (T2 "torrentHash" Text "transmissionInfo" transmissionInfo)
getTorrentById :: (MonadPostgres m, HasField "torrentId" r Int, MonadThrow m) => r -> Transaction m Json.Value
getTorrentById dat = do
queryWith
[sql|
SELECT full_json_result FROM redacted.torrents
WHERE torrent_id = ?::integer
|]
(getLabel @"torrentId" dat)
(Dec.json Json.asValue)
>>= ensureSingleRow
-- | Find the best torrent for each torrent group (based on the seeding_weight)
getBestTorrents :: (MonadPostgres m) => Transaction m [TorrentData ()]
getBestTorrents = do
queryWith
[sql|
SELECT * FROM (
SELECT DISTINCT ON (group_id)
tg.group_id,
t.torrent_id,
seeding_weight,
t.full_json_result AS torrent_json,
tg.full_json_result AS torrent_group_json,
t.torrent_file IS NOT NULL,
t.transmission_torrent_hash
FROM redacted.torrents t
JOIN redacted.torrent_groups tg ON tg.id = t.torrent_group
ORDER BY group_id, seeding_weight DESC
) as _
ORDER BY seeding_weight DESC
|]
()
( do
groupId <- Dec.fromField @Int
torrentId <- Dec.fromField @Int
seedingWeight <- Dec.fromField @Int
torrentJson <- Dec.json Json.asValue
torrentGroupJson <-
( Dec.json $ do
artist <- Json.keyLabel @"artist" "artist" Json.asText
groupName <- Json.keyLabel @"groupName" "groupName" Json.asText
pure $ T2 artist groupName
)
hasTorrentFile <- Dec.fromField @Bool
transmissionTorrentHash <-
Dec.fromField @(Maybe Text)
pure $
TorrentData
{ torrentStatus =
if
| not hasTorrentFile -> NoTorrentFileYet
| Nothing <- transmissionTorrentHash -> NotInTransmissionYet
| Just hash <- transmissionTorrentHash ->
InTransmission $
T2 (label @"torrentHash" hash) (label @"transmissionInfo" ()),
..
}
)
-- | Do a request to the redacted API. If you know what that is, you know how to find the API docs.
mkRedactedApiRequest ::
( MonadThrow m,
MonadIO m,
MonadLogger m,
HasField "action" p ByteString,
HasField "actionArgs" p [(ByteString, Maybe ByteString)]
) =>
p ->
m Http.Request
mkRedactedApiRequest dat = do
authKey <- runCommandExpect0 "pass" ["internet/redacted/api-keys/whatcd-resolver"]
pure $
[fmt|https://redacted.ch/ajax.php|]
& Http.setRequestMethod "GET"
& Http.setQueryString (("action", Just dat.action) : dat.actionArgs)
& Http.setRequestHeader "Authorization" [authKey]
httpTorrent ::
( MonadIO m,
MonadThrow m
) =>
Otel.Span ->
Http.Request ->
m ByteString
httpTorrent span req =
Http.httpBS req
>>= assertM
span
( \resp -> do
let statusCode = resp & Http.responseStatus & (.statusCode)
contentType =
resp
& Http.responseHeaders
& List.lookup "content-type"
<&> Wai.parseContentType
<&> (\(ct, _mimeAttributes) -> ct)
if
| statusCode == 200,
Just "application/x-bittorrent" <- contentType ->
Right $ (resp & Http.responseBody)
| statusCode == 200,
Just otherType <- contentType ->
Left [fmt|Redacted returned a non-torrent body, with content-type "{otherType}"|]
| statusCode == 200,
Nothing <- contentType ->
Left [fmt|Redacted returned a body with unspecified content type|]
| code <- statusCode -> Left [fmt|Redacted returned an non-200 error code, code {code}: {resp & showPretty}|]
)
newtype Optional a = OptionalInternal (Maybe a)
mkOptional :: a -> Optional a
mkOptional defaultValue = OptionalInternal $ Just defaultValue
defaults :: Optional a
defaults = OptionalInternal Nothing
instance HasField "withDefault" (Optional a) (a -> a) where
getField (OptionalInternal m) defaultValue = case m of
Nothing -> defaultValue
Just a -> a
httpJson ::
( MonadThrow m,
MonadOtel m
) =>
(Optional (Label "contentType" ByteString)) ->
Json.Parse ErrorTree b ->
Http.Request ->
m b
httpJson opts parser req = inSpan' "HTTP Request (JSON)" $ \span -> do
let opts' = opts.withDefault (label @"contentType" "application/json")
Http.httpBS req
>>= assertM
span
( \resp -> do
let statusCode = resp & Http.responseStatus & (.statusCode)
contentType =
resp
& Http.responseHeaders
& List.lookup "content-type"
<&> Wai.parseContentType
<&> (\(ct, _mimeAttributes) -> ct)
if
| statusCode == 200,
Just ct <- contentType,
ct == opts'.contentType ->
Right $ (resp & Http.responseBody)
| statusCode == 200,
Just otherType <- contentType ->
Left [fmt|Server returned a non-json body, with content-type "{otherType}"|]
| statusCode == 200,
Nothing <- contentType ->
Left [fmt|Server returned a body with unspecified content type|]
| code <- statusCode -> Left [fmt|Server returned an non-200 error code, code {code}: {resp & showPretty}|]
)
>>= assertM
span
( \body ->
Json.parseStrict parser body
& first (Json.parseErrorTree "could not parse redacted response")
)
redactedApiRequestJson ::
( MonadThrow m,
MonadLogger m,
HasField "action" p ByteString,
HasField "actionArgs" p [(ByteString, Maybe ByteString)],
MonadOtel m
) =>
p ->
Json.Parse ErrorTree a ->
m a
redactedApiRequestJson dat parser =
do
mkRedactedApiRequest dat
>>= httpJson defaults parser

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@ -0,0 +1,302 @@
{-# LANGUAGE QuasiQuotes #-}
module Transmission where
import AppT
import Control.Monad.Logger.CallStack
import Control.Monad.Reader
import Data.Aeson qualified as Json
import Data.Aeson.BetterErrors qualified as Json
import Data.Aeson.KeyMap qualified as KeyMap
import Data.Error.Tree
import Data.HashMap.Strict qualified as HashMap
import Data.List qualified as List
import Data.List.NonEmpty qualified as NonEmpty
import Data.Map.Strict qualified as Map
import Database.PostgreSQL.Simple (Only (..))
import Database.PostgreSQL.Simple.Types (PGArray (PGArray))
import FieldParser (FieldParser' (..))
import FieldParser qualified as Field
import Html qualified
import Json qualified
import Json.Enc (Enc)
import Json.Enc qualified as Enc
import Label
import MyPrelude
import Network.HTTP.Simple qualified as Http
import Network.HTTP.Types
import OpenTelemetry.Trace qualified as Otel hiding (getTracer, inSpan, inSpan')
import OpenTelemetry.Trace.Monad qualified as Otel
import Postgres.MonadPostgres
import Pretty
import Text.Blaze.Html (Html)
import UnliftIO
import Prelude hiding (span)
-- | A value between (inclusive) 0% and (inclusive) 100%. Precise to 1% steps.
newtype Percentage = Percentage {unPercentage :: Int}
deriving stock (Show)
-- | Parse a scientific into a Percentage
scientificPercentage :: FieldParser' Error Scientific Percentage
scientificPercentage =
Field.boundedScientificRealFloat @Float
>>> ( FieldParser $ \f ->
if
| f < 0 -> Left "percentage cannot be negative"
| f > 1 -> Left "percentage cannot be over 100%"
| otherwise -> Right $ Percentage $ ceiling (f * 100)
)
-- | Fetch the current status from transmission, and remove the tranmission hash from our database
-- iff it does not exist in transmission anymore
getAndUpdateTransmissionTorrentsStatus ::
( MonadTransmission m,
MonadThrow m,
MonadLogger m,
MonadPostgres m,
MonadOtel m
) =>
Map (Label "torrentHash" Text) () ->
(Transaction m (Map (Label "torrentHash" Text) (Label "percentDone" Percentage)))
getAndUpdateTransmissionTorrentsStatus knownTorrents = do
let fields = ["hashString", "percentDone"]
actualTorrents <-
lift @Transaction $
doTransmissionRequest'
( transmissionRequestListOnlyTorrents
( T2
(label @"fields" fields)
(label @"ids" (Map.keys knownTorrents))
)
$ do
torrentHash <- Json.keyLabel @"torrentHash" "hashString" Json.asText
percentDone <- Json.keyLabel @"percentDone" "percentDone" (Field.toJsonParser $ Field.jsonNumber >>> scientificPercentage)
pure (torrentHash, percentDone)
)
<&> Map.fromList
let toDelete = Map.difference knownTorrents actualTorrents
execute
[fmt|
UPDATE redacted.torrents_json
SET transmission_torrent_hash = NULL
WHERE transmission_torrent_hash = ANY (?::text[])
|]
$ Only (toDelete & Map.keys <&> (.torrentHash) & PGArray :: PGArray Text)
pure actualTorrents
getTransmissionTorrentsTable ::
(MonadTransmission m, MonadThrow m, MonadLogger m, MonadOtel m) => m Html
getTransmissionTorrentsTable = do
let fields =
[ "hashString",
"name",
"percentDone",
"percentComplete",
"downloadDir",
"files"
]
doTransmissionRequest'
( transmissionRequestListAllTorrents fields $ do
Json.asObject <&> KeyMap.toMapText
)
<&> \resp ->
Html.toTable
( resp
& List.sortOn (\m -> m & Map.lookup "percentDone" & fromMaybe (Json.Number 0))
<&> Map.toList
-- TODO
& List.take 100
)
data TransmissionRequest = TransmissionRequest
{ method :: Text,
arguments :: Map Text Enc,
tag :: Maybe Int
}
deriving stock (Show)
transmissionConnectionConfig :: T2 "host" Text "port" Text
transmissionConnectionConfig = (T2 (label @"host" "localhost") (label @"port" "9091"))
transmissionRequestListAllTorrents :: (Monad m) => [Text] -> Json.ParseT e m out -> (TransmissionRequest, Json.ParseT e m [out])
transmissionRequestListAllTorrents fields parseTorrent =
( TransmissionRequest
{ method = "torrent-get",
arguments =
Map.fromList
[ ("fields", Enc.list Enc.text fields)
],
tag = Nothing
},
Json.key "torrents" $ Json.eachInArray parseTorrent
)
transmissionRequestListOnlyTorrents ::
( HasField "ids" r1 [(Label "torrentHash" Text)],
HasField "fields" r1 [Text],
Monad m
) =>
r1 ->
Json.ParseT e m out ->
(TransmissionRequest, Json.ParseT e m [out])
transmissionRequestListOnlyTorrents dat parseTorrent =
( TransmissionRequest
{ method = "torrent-get",
arguments =
Map.fromList
[ ("ids", Enc.list (\i -> Enc.text i.torrentHash) dat.ids),
("fields", Enc.list Enc.text dat.fields)
],
tag = Nothing
},
Json.key "torrents" $ Json.eachInArray parseTorrent
)
transmissionRequestAddTorrent ::
(HasField "torrentFile" r ByteString, Monad m) =>
r ->
( TransmissionRequest,
Json.ParseT err m (T2 "torrentHash" Text "torrentName" Text)
)
transmissionRequestAddTorrent dat =
( TransmissionRequest
{ method = "torrent-add",
arguments =
Map.fromList
[ ("metainfo", Enc.base64Bytes dat.torrentFile),
("paused", Enc.bool False)
],
tag = Nothing
},
do
let p method = Json.key method $ do
hash <- Json.keyLabel @"torrentHash" "hashString" Json.asText
name <- Json.keyLabel @"torrentName" "name" Json.asText
pure $ T2 hash name
p "torrent-duplicate" Json.<|> p "torrent-added"
)
data TransmissionResponse output = TransmissionResponse
{ result :: TransmissionResponseStatus,
arguments :: Maybe output,
tag :: Maybe Int
}
deriving stock (Show)
data TransmissionResponseStatus
= TransmissionResponseSuccess
| TransmissionResponseFailure Text
deriving stock (Show)
doTransmissionRequest' ::
( MonadTransmission m,
MonadThrow m,
MonadLogger m,
MonadOtel m
) =>
(TransmissionRequest, Json.Parse Error output) ->
m output
doTransmissionRequest' req = inSpan' "Transmission Request" $ \span -> do
resp <-
doTransmissionRequest
span
transmissionConnectionConfig
req
case resp.result of
TransmissionResponseFailure err -> appThrowTree span (nestedError "Transmission RPC error" $ singleError $ newError err)
TransmissionResponseSuccess -> case resp.arguments of
Nothing -> appThrowTree span "Transmission RPC error: No `arguments` field in response"
Just out -> pure out
-- | Contact the transmission RPC, and do the CSRF protection dance.
--
-- Spec: https://github.com/transmission/transmission/blob/main/docs/rpc-spec.md
doTransmissionRequest ::
( MonadTransmission m,
HasField "host" t1 Text,
HasField "port" t1 Text,
MonadThrow m,
MonadLogger m,
Otel.MonadTracer m,
MonadUnliftIO m
) =>
Otel.Span ->
t1 ->
(TransmissionRequest, Json.Parse Error output) ->
m (TransmissionResponse output)
doTransmissionRequest span dat (req, parser) = do
sessionId <- getTransmissionId
let textArg t = (Enc.text t, Otel.toAttribute @Text t)
let encArg enc = (enc, Otel.toAttribute @Text $ enc & Enc.encToTextPretty)
let intArg i = (Enc.int i, Otel.toAttribute @Int i)
let body :: [(Text, (Enc, Otel.Attribute))] =
( [ ("method", req.method & textArg),
("arguments", encArg $ Enc.map id req.arguments)
]
<> (req.tag & foldMap (\t -> [("tag", t & intArg)]))
)
addAttributes
span
( HashMap.fromList $
body
<&> bimap
(\k -> [fmt|transmission.{k}|])
(\(_, attr) -> attr)
)
let httpReq =
[fmt|http://{dat.host}:{dat.port}/transmission/rpc|]
& Http.setRequestMethod "POST"
& Http.setRequestBodyLBS (Enc.encToBytesUtf8Lazy (body <&> second fst & Enc.object))
& (sessionId & maybe id (Http.setRequestHeader "X-Transmission-Session-Id" . (: [])))
resp <- Http.httpBS httpReq
-- Implement the CSRF protection thingy
case resp & Http.getResponseStatus & (.statusCode) of
409 -> do
tid <-
resp
& Http.getResponseHeader "X-Transmission-Session-Id"
& nonEmpty
& annotate [fmt|Missing "X-Transmission-Session-Id" header in 409 response: {showPretty resp}|]
& unwrapIOError
& liftIO
<&> NonEmpty.head
setTransmissionId tid
doTransmissionRequest span dat (req, parser)
200 ->
resp
& Http.getResponseBody
& Json.parseStrict
( Json.mapError singleError $ do
result <-
Json.key "result" Json.asText <&> \case
"success" -> TransmissionResponseSuccess
err -> TransmissionResponseFailure err
arguments <-
Json.keyMay "arguments" parser
tag <-
Json.keyMay
"tag"
(Field.toJsonParser (Field.jsonNumber >>> Field.boundedScientificIntegral "tag too long"))
pure TransmissionResponse {..}
)
& first (Json.parseErrorTree "Cannot parse transmission RPC response")
& \case
Right a -> pure a
Left err -> do
case Json.eitherDecodeStrict' @Json.Value (resp & Http.getResponseBody) of
Left _err -> pure ()
Right val -> logInfo [fmt|failing transmission response: {showPrettyJson val}|]
appThrowTree span err
_ -> liftIO $ unwrapIOError $ Left [fmt|Non-200 response: {showPretty resp}|]
class MonadTransmission m where
getTransmissionId :: m (Maybe ByteString)
setTransmissionId :: ByteString -> m ()
instance (MonadIO m) => MonadTransmission (AppT m) where
getTransmissionId = AppT (asks (.transmissionSessionId)) >>= tryTakeMVar
setTransmissionId t = do
var <- AppT $ asks (.transmissionSessionId)
putMVar var t

View file

@ -11,23 +11,19 @@ import Data.Aeson qualified as Json
import Data.Aeson.BetterErrors qualified as Json
import Data.Aeson.KeyMap qualified as KeyMap
import Data.ByteString.Builder qualified as Builder
import Data.Error.Tree
import Data.HashMap.Strict qualified as HashMap
import Data.List qualified as List
import Data.List.NonEmpty qualified as NonEmpty
import Data.Map.Strict qualified as Map
import Data.Pool qualified as Pool
import Data.Set (Set)
import Data.Set qualified as Set
import Data.Text qualified as Text
import Database.PostgreSQL.Simple (Binary (Binary), Only (..))
import Database.PostgreSQL.Simple qualified as Postgres
import Database.PostgreSQL.Simple.SqlQQ (sql)
import Database.PostgreSQL.Simple.Types (PGArray (PGArray))
import Database.Postgres.Temp qualified as TmpPg
import FieldParser (FieldParser, FieldParser' (..))
import FieldParser qualified as Field
import GHC.Records (HasField (..))
import Html qualified
import IHP.HSX.QQ (hsx)
import Json qualified
@ -54,7 +50,7 @@ import Parse qualified
import Postgres.Decoder qualified as Dec
import Postgres.MonadPostgres
import Pretty
import RunCommand (runCommandExpect0)
import Redacted
import System.Directory qualified as Dir
import System.Directory qualified as Xdg
import System.Environment qualified as Env
@ -64,6 +60,7 @@ import Text.Blaze.Html.Renderer.Pretty qualified as Html.Pretty
import Text.Blaze.Html.Renderer.Utf8 qualified as Html
import Text.Blaze.Html5 qualified as Html
import Tool (readTool, readTools)
import Transmission
import UnliftIO
import Prelude hiding (span)
@ -551,58 +548,6 @@ renderJsonld = \case
schemaType t =
let href :: Text = [fmt|https://schema.org/{t}|] in [hsx|<a href={href} target="_blank">{t}</a>|]
-- | A value between (inclusive) 0% and (inclusive) 100%. Precise to 1% steps.
newtype Percentage = Percentage {unPercentage :: Int}
deriving stock (Show)
-- | Parse a scientific into a Percentage
scientificPercentage :: FieldParser' Error Scientific Percentage
scientificPercentage =
Field.boundedScientificRealFloat @Float
>>> ( FieldParser $ \f ->
if
| f < 0 -> Left "percentage cannot be negative"
| f > 1 -> Left "percentage cannot be over 100%"
| otherwise -> Right $ Percentage $ ceiling (f * 100)
)
-- | Fetch the current status from transmission, and remove the tranmission hash from our database
-- iff it does not exist in transmission anymore
getAndUpdateTransmissionTorrentsStatus ::
( MonadTransmission m,
MonadThrow m,
MonadLogger m,
MonadPostgres m,
MonadOtel m
) =>
Map (Label "torrentHash" Text) () ->
(Transaction m (Map (Label "torrentHash" Text) (Label "percentDone" Percentage)))
getAndUpdateTransmissionTorrentsStatus knownTorrents = do
let fields = ["hashString", "percentDone"]
actualTorrents <-
lift @Transaction $
doTransmissionRequest'
( transmissionRequestListOnlyTorrents
( T2
(label @"fields" fields)
(label @"ids" (Map.keys knownTorrents))
)
$ do
torrentHash <- Json.keyLabel @"torrentHash" "hashString" Json.asText
percentDone <- Json.keyLabel @"percentDone" "percentDone" (Field.toJsonParser $ Field.jsonNumber >>> scientificPercentage)
pure (torrentHash, percentDone)
)
<&> Map.fromList
let toDelete = Map.difference knownTorrents actualTorrents
execute
[fmt|
UPDATE redacted.torrents_json
SET transmission_torrent_hash = NULL
WHERE transmission_torrent_hash = ANY (?::text[])
|]
$ Only (toDelete & Map.keys <&> (.torrentHash) & PGArray :: PGArray Text)
pure actualTorrents
getTransmissionTorrentsTable ::
(MonadTransmission m, MonadThrow m, MonadLogger m, MonadOtel m) => m Html
getTransmissionTorrentsTable = do
@ -627,513 +572,9 @@ getTransmissionTorrentsTable = do
& List.take 100
)
data TransmissionRequest = TransmissionRequest
{ method :: Text,
arguments :: Map Text Enc,
tag :: Maybe Int
}
deriving stock (Show)
testTransmission :: (Show out) => (TransmissionRequest, Json.Parse Error out) -> IO (Either TmpPg.StartError ())
testTransmission req = runAppWith $ inSpan' "Test Transmission" $ \span ->
doTransmissionRequest
span
transmissionConnectionConfig
req
>>= liftIO . printPretty
transmissionConnectionConfig :: T2 "host" Text "port" Text
transmissionConnectionConfig = (T2 (label @"host" "localhost") (label @"port" "9091"))
transmissionRequestListAllTorrents :: (Monad m) => [Text] -> Json.ParseT e m out -> (TransmissionRequest, Json.ParseT e m [out])
transmissionRequestListAllTorrents fields parseTorrent =
( TransmissionRequest
{ method = "torrent-get",
arguments =
Map.fromList
[ ("fields", Enc.list Enc.text fields)
],
tag = Nothing
},
Json.key "torrents" $ Json.eachInArray parseTorrent
)
transmissionRequestListOnlyTorrents ::
( HasField "ids" r1 [(Label "torrentHash" Text)],
HasField "fields" r1 [Text],
Monad m
) =>
r1 ->
Json.ParseT e m out ->
(TransmissionRequest, Json.ParseT e m [out])
transmissionRequestListOnlyTorrents dat parseTorrent =
( TransmissionRequest
{ method = "torrent-get",
arguments =
Map.fromList
[ ("ids", Enc.list (\i -> Enc.text i.torrentHash) dat.ids),
("fields", Enc.list Enc.text dat.fields)
],
tag = Nothing
},
Json.key "torrents" $ Json.eachInArray parseTorrent
)
transmissionRequestAddTorrent ::
(HasField "torrentFile" r ByteString, Monad m) =>
r ->
( TransmissionRequest,
Json.ParseT err m (T2 "torrentHash" Text "torrentName" Text)
)
transmissionRequestAddTorrent dat =
( TransmissionRequest
{ method = "torrent-add",
arguments =
Map.fromList
[ ("metainfo", Enc.base64Bytes dat.torrentFile),
("paused", Enc.bool False)
],
tag = Nothing
},
do
let p method = Json.key method $ do
hash <- Json.keyLabel @"torrentHash" "hashString" Json.asText
name <- Json.keyLabel @"torrentName" "name" Json.asText
pure $ T2 hash name
p "torrent-duplicate" Json.<|> p "torrent-added"
)
data TransmissionResponse output = TransmissionResponse
{ result :: TransmissionResponseStatus,
arguments :: Maybe output,
tag :: Maybe Int
}
deriving stock (Show)
data TransmissionResponseStatus
= TransmissionResponseSuccess
| TransmissionResponseFailure Text
deriving stock (Show)
doTransmissionRequest' ::
( MonadTransmission m,
MonadThrow m,
MonadLogger m,
MonadOtel m
) =>
(TransmissionRequest, Json.Parse Error output) ->
m output
doTransmissionRequest' req = inSpan' "Transmission Request" $ \span -> do
resp <-
doTransmissionRequest
span
transmissionConnectionConfig
req
case resp.result of
TransmissionResponseFailure err -> appThrowTree span (nestedError "Transmission RPC error" $ singleError $ newError err)
TransmissionResponseSuccess -> case resp.arguments of
Nothing -> appThrowTree span "Transmission RPC error: No `arguments` field in response"
Just out -> pure out
-- | Contact the transmission RPC, and do the CSRF protection dance.
--
-- Spec: https://github.com/transmission/transmission/blob/main/docs/rpc-spec.md
doTransmissionRequest ::
( MonadTransmission m,
HasField "host" t1 Text,
HasField "port" t1 Text,
MonadThrow m,
MonadLogger m,
Otel.MonadTracer m,
MonadUnliftIO m
) =>
Otel.Span ->
t1 ->
(TransmissionRequest, Json.Parse Error output) ->
m (TransmissionResponse output)
doTransmissionRequest span dat (req, parser) = do
sessionId <- getTransmissionId
let textArg t = (Enc.text t, Otel.toAttribute @Text t)
let encArg enc = (enc, Otel.toAttribute @Text $ enc & Enc.encToTextPretty)
let intArg i = (Enc.int i, Otel.toAttribute @Int i)
let body :: [(Text, (Enc, Otel.Attribute))] =
( [ ("method", req.method & textArg),
("arguments", encArg $ Enc.map id req.arguments)
]
<> (req.tag & foldMap (\t -> [("tag", t & intArg)]))
)
addAttributes
span
( HashMap.fromList $
body
<&> bimap
(\k -> [fmt|transmission.{k}|])
(\(_, attr) -> attr)
)
let httpReq =
[fmt|http://{dat.host}:{dat.port}/transmission/rpc|]
& Http.setRequestMethod "POST"
& Http.setRequestBodyLBS (Enc.encToBytesUtf8Lazy (body <&> second fst & Enc.object))
& (sessionId & maybe id (Http.setRequestHeader "X-Transmission-Session-Id" . (: [])))
resp <- Http.httpBS httpReq
-- Implement the CSRF protection thingy
case resp & Http.getResponseStatus & (.statusCode) of
409 -> do
tid <-
resp
& Http.getResponseHeader "X-Transmission-Session-Id"
& nonEmpty
& annotate [fmt|Missing "X-Transmission-Session-Id" header in 409 response: {showPretty resp}|]
& unwrapIOError
& liftIO
<&> NonEmpty.head
setTransmissionId tid
doTransmissionRequest span dat (req, parser)
200 ->
resp
& Http.getResponseBody
& Json.parseStrict
( Json.mapError singleError $ do
result <-
Json.key "result" Json.asText <&> \case
"success" -> TransmissionResponseSuccess
err -> TransmissionResponseFailure err
arguments <-
Json.keyMay "arguments" parser
tag <-
Json.keyMay
"tag"
(Field.toJsonParser (Field.jsonNumber >>> Field.boundedScientificIntegral "tag too long"))
pure TransmissionResponse {..}
)
& first (Json.parseErrorTree "Cannot parse transmission RPC response")
& \case
Right a -> pure a
Left err -> do
case Json.eitherDecodeStrict' @Json.Value (resp & Http.getResponseBody) of
Left _err -> pure ()
Right val -> logInfo [fmt|failing transmission response: {showPrettyJson val}|]
appThrowTree span err
_ -> liftIO $ unwrapIOError $ Left [fmt|Non-200 response: {showPretty resp}|]
redactedSearch ::
(MonadLogger m, MonadThrow m, MonadOtel m) =>
[(ByteString, ByteString)] ->
Json.Parse ErrorTree a ->
m a
redactedSearch advanced parser =
inSpan "Redacted API Search" $
redactedApiRequestJson
( T2
(label @"action" "browse")
(label @"actionArgs" ((advanced <&> second Just)))
)
parser
redactedGetTorrentFile ::
( MonadLogger m,
MonadThrow m,
HasField "torrentId" dat Int,
MonadOtel m
) =>
dat ->
m ByteString
redactedGetTorrentFile dat = inSpan' "Redacted Get Torrent File" $ \span -> do
req <-
mkRedactedApiRequest
( T2
(label @"action" "download")
( label @"actionArgs"
[ ("id", Just (dat.torrentId & showToText @Int & textToBytesUtf8))
-- try using tokens as long as we have them (TODO: what if theres no tokens left?
-- ANSWER: it breaks:
-- responseBody = "{\"status\":\"failure\",\"error\":\"You do not have any freeleech tokens left. Please use the regular DL link.\"}",
-- ("usetoken", Just "1")
]
)
)
httpTorrent span req
-- fix
-- ( \io -> do
-- logInfo "delay"
-- liftIO $ threadDelay 10_000_000
-- io
-- )
exampleSearch :: (MonadThrow m, MonadLogger m, MonadPostgres m, MonadOtel m) => m (Transaction m ())
exampleSearch = do
t1 <-
redactedSearchAndInsert
[ ("searchstr", "cherish"),
("artistname", "kirinji"),
-- ("year", "1982"),
-- ("format", "MP3"),
-- ("releasetype", "album"),
("order_by", "year")
]
t3 <-
redactedSearchAndInsert
[ ("searchstr", "mouss et hakim"),
("artistname", "mouss et hakim"),
-- ("year", "1982"),
-- ("format", "MP3"),
-- ("releasetype", "album"),
("order_by", "year")
]
t2 <-
redactedSearchAndInsert
[ ("searchstr", "thriller"),
("artistname", "michael jackson"),
-- ("year", "1982"),
-- ("format", "MP3"),
-- ("releasetype", "album"),
("order_by", "year")
]
pure (t1 >> t2 >> t3)
-- | Do the search, return a transaction that inserts all results from all pages of the search.
redactedSearchAndInsert ::
forall m.
( MonadLogger m,
MonadPostgres m,
MonadThrow m,
MonadOtel m
) =>
[(ByteString, ByteString)] ->
m (Transaction m ())
redactedSearchAndInsert extraArguments = do
logInfo [fmt|Doing redacted search with arguments: {showPretty extraArguments}|]
-- The first search returns the amount of pages, so we use that to query all results piece by piece.
firstPage <- go Nothing
let remainingPages = firstPage.pages - 1
logInfo [fmt|Got the first page, found {remainingPages} more pages|]
let otherPagesNum = [(2 :: Natural) .. remainingPages]
otherPages <- traverse go (Just <$> otherPagesNum)
pure $
(firstPage : otherPages)
& concatMap (.tourGroups)
& \case
IsNonEmpty tgs -> tgs & insertTourGroupsAndTorrents
IsEmpty -> pure ()
where
go mpage =
redactedSearch
( extraArguments
-- pass the page (for every search but the first one)
<> ifExists (mpage <&> (\page -> [("page", (page :: Natural) & showToText & textToBytesUtf8)]))
)
( do
status <- Json.key "status" Json.asText
when (status /= "success") $ do
Json.throwCustomError [fmt|Status was not "success", but {status}|]
Json.key "response" $ do
pages <-
Json.keyMay "pages" (Field.toJsonParser (Field.mapError singleError $ Field.jsonNumber >>> Field.boundedScientificIntegral @Int "not an Integer" >>> Field.integralToNatural))
-- in case the field is missing, lets assume there is only one page
<&> fromMaybe 1
Json.key "results" $ do
tourGroups <-
label @"tourGroups"
<$> ( Json.eachInArray $ do
groupId <- Json.keyLabel @"groupId" "groupId" (Json.asIntegral @_ @Int)
groupName <- Json.keyLabel @"groupName" "groupName" Json.asText
fullJsonResult <-
label @"fullJsonResult"
<$> ( Json.asObject
-- remove torrents cause they are inserted separately below
<&> KeyMap.filterWithKey (\k _ -> k /= "torrents")
<&> Json.Object
)
let tourGroup = T3 groupId groupName fullJsonResult
torrents <- Json.keyLabel @"torrents" "torrents" $
Json.eachInArray $ do
torrentId <- Json.keyLabel @"torrentId" "torrentId" (Json.asIntegral @_ @Int)
fullJsonResultT <- label @"fullJsonResult" <$> Json.asValue
pure $ T2 torrentId fullJsonResultT
pure (T2 (label @"tourGroup" tourGroup) torrents)
)
pure
( T2
(label @"pages" pages)
tourGroups
)
)
insertTourGroupsAndTorrents ::
NonEmpty
( T2
"tourGroup"
(T3 "groupId" Int "groupName" Text "fullJsonResult" Json.Value)
"torrents"
[T2 "torrentId" Int "fullJsonResult" Json.Value]
) ->
Transaction m ()
insertTourGroupsAndTorrents dat = do
let tourGroups = dat <&> (.tourGroup)
let torrents = dat <&> (.torrents)
insertTourGroups tourGroups
>>= ( \res ->
insertTorrents $
zipT2 $
T2
(label @"torrentGroupIdPg" $ res <&> (.tourGroupIdPg))
(label @"torrents" (torrents & toList))
)
insertTourGroups ::
NonEmpty
( T3
"groupId"
Int
"groupName"
Text
"fullJsonResult"
Json.Value
) ->
Transaction m [Label "tourGroupIdPg" Int]
insertTourGroups dats = do
let groupNames =
dats <&> \dat -> [fmt|{dat.groupId}: {dat.groupName}|]
logInfo [fmt|Inserting tour groups for {showPretty groupNames}|]
_ <-
execute
[fmt|
DELETE FROM redacted.torrent_groups
WHERE group_id = ANY (?::integer[])
|]
(Only $ (dats <&> (.groupId) & toList & PGArray :: PGArray Int))
executeManyReturningWith
[fmt|
INSERT INTO redacted.torrent_groups (
group_id, group_name, full_json_result
) VALUES
( ?, ? , ? )
ON CONFLICT (group_id) DO UPDATE SET
group_id = excluded.group_id,
group_name = excluded.group_name,
full_json_result = excluded.full_json_result
RETURNING (id)
|]
( dats <&> \dat ->
( dat.groupId,
dat.groupName,
dat.fullJsonResult
)
)
(label @"tourGroupIdPg" <$> Dec.fromField @Int)
insertTorrents ::
[ T2
"torrentGroupIdPg"
Int
"torrents"
[T2 "torrentId" Int "fullJsonResult" Json.Value]
] ->
Transaction m ()
insertTorrents dats = do
_ <-
execute
[sql|
DELETE FROM redacted.torrents_json
WHERE torrent_id = ANY (?::integer[])
|]
( Only $
PGArray
[ torrent.torrentId
| dat <- dats,
torrent <- dat.torrents
]
)
execute
[sql|
INSERT INTO redacted.torrents_json
( torrent_group
, torrent_id
, full_json_result)
SELECT *
FROM UNNEST(
?::integer[]
, ?::integer[]
, ?::jsonb[]
) AS inputs(
torrent_group
, torrent_id
, full_json_result)
|]
( [ ( dat.torrentGroupIdPg :: Int,
group.torrentId :: Int,
group.fullJsonResult :: Json.Value
)
| dat <- dats,
group <- dat.torrents
]
& unzip3PGArray
)
pure ()
unzip3PGArray :: [(a1, a2, a3)] -> (PGArray a1, PGArray a2, PGArray a3)
unzip3PGArray xs = xs & unzip3 & \(a, b, c) -> (PGArray a, PGArray b, PGArray c)
redactedGetTorrentFileAndInsert ::
( HasField "torrentId" r Int,
MonadPostgres m,
MonadThrow m,
MonadLogger m,
MonadOtel m
) =>
r ->
Transaction m (Label "torrentFile" ByteString)
redactedGetTorrentFileAndInsert dat = inSpan' "Redacted Get Torrent File and Insert" $ \span -> do
bytes <- redactedGetTorrentFile dat
execute
[sql|
UPDATE redacted.torrents_json
SET torrent_file = ?::bytea
WHERE torrent_id = ?::integer
|]
( (Binary bytes :: Binary ByteString),
dat.torrentId
)
>>= assertOneUpdated span "redactedGetTorrentFileAndInsert"
>>= \() -> pure (label @"torrentFile" bytes)
getTorrentFileById ::
( MonadPostgres m,
HasField "torrentId" r Int,
MonadThrow m
) =>
r ->
Transaction m (Maybe (Label "torrentFile" ByteString))
getTorrentFileById dat = do
queryWith
[sql|
SELECT torrent_file
FROM redacted.torrents
WHERE torrent_id = ?::integer
|]
(Only $ (dat.torrentId :: Int))
(fmap @Maybe (label @"torrentFile") <$> Dec.byteaMay)
>>= ensureSingleRow
updateTransmissionTorrentHashById ::
( MonadPostgres m,
HasField "torrentId" r Int,
HasField "torrentHash" r Text
) =>
r ->
Transaction m (Label "numberOfRowsAffected" Natural)
updateTransmissionTorrentHashById dat = do
execute
[sql|
UPDATE redacted.torrents_json
SET transmission_torrent_hash = ?::text
WHERE torrent_id = ?::integer
|]
( dat.torrentHash :: Text,
dat.torrentId :: Int
)
assertOneUpdated ::
(HasField "numberOfRowsAffected" r Natural, MonadThrow m, MonadIO m) =>
Otel.Span ->
@ -1204,97 +645,6 @@ migrate = inSpan "Database Migration" $ do
|]
()
data TorrentData transmissionInfo = TorrentData
{ groupId :: Int,
torrentId :: Int,
seedingWeight :: Int,
torrentJson :: Json.Value,
torrentGroupJson :: T2 "artist" Text "groupName" Text,
torrentStatus :: TorrentStatus transmissionInfo
}
data TorrentStatus transmissionInfo
= NoTorrentFileYet
| NotInTransmissionYet
| InTransmission (T2 "torrentHash" Text "transmissionInfo" transmissionInfo)
getTorrentById :: (MonadPostgres m, HasField "torrentId" r Int, MonadThrow m) => r -> Transaction m Json.Value
getTorrentById dat = do
queryWith
[sql|
SELECT full_json_result FROM redacted.torrents
WHERE torrent_id = ?::integer
|]
(getLabel @"torrentId" dat)
(Dec.json Json.asValue)
>>= ensureSingleRow
-- | Find the best torrent for each torrent group (based on the seeding_weight)
getBestTorrents :: (MonadPostgres m) => Transaction m [TorrentData ()]
getBestTorrents = do
queryWith
[sql|
SELECT * FROM (
SELECT DISTINCT ON (group_id)
tg.group_id,
t.torrent_id,
seeding_weight,
t.full_json_result AS torrent_json,
tg.full_json_result AS torrent_group_json,
t.torrent_file IS NOT NULL,
t.transmission_torrent_hash
FROM redacted.torrents t
JOIN redacted.torrent_groups tg ON tg.id = t.torrent_group
ORDER BY group_id, seeding_weight DESC
) as _
ORDER BY seeding_weight DESC
|]
()
( do
groupId <- Dec.fromField @Int
torrentId <- Dec.fromField @Int
seedingWeight <- Dec.fromField @Int
torrentJson <- Dec.json Json.asValue
torrentGroupJson <-
( Dec.json $ do
artist <- Json.keyLabel @"artist" "artist" Json.asText
groupName <- Json.keyLabel @"groupName" "groupName" Json.asText
pure $ T2 artist groupName
)
hasTorrentFile <- Dec.fromField @Bool
transmissionTorrentHash <-
Dec.fromField @(Maybe Text)
pure $
TorrentData
{ torrentStatus =
if
| not hasTorrentFile -> NoTorrentFileYet
| Nothing <- transmissionTorrentHash -> NotInTransmissionYet
| Just hash <- transmissionTorrentHash ->
InTransmission $
T2 (label @"torrentHash" hash) (label @"transmissionInfo" ()),
..
}
)
-- | Do a request to the redacted API. If you know what that is, you know how to find the API docs.
mkRedactedApiRequest ::
( MonadThrow m,
MonadIO m,
MonadLogger m,
HasField "action" p ByteString,
HasField "actionArgs" p [(ByteString, Maybe ByteString)]
) =>
p ->
m Http.Request
mkRedactedApiRequest dat = do
authKey <- runCommandExpect0 "pass" ["internet/redacted/api-keys/whatcd-resolver"]
pure $
[fmt|https://redacted.ch/ajax.php|]
& Http.setRequestMethod "GET"
& Http.setQueryString (("action", Just dat.action) : dat.actionArgs)
& Http.setRequestHeader "Authorization" [authKey]
httpGetJsonLd :: (MonadThrow m, MonadOtel m) => (URI, Http.Request) -> m Jsonld
httpGetJsonLd (uri, req) = inSpan' "Fetch json+ld" $ \span -> do
addAttribute span "json+ld.targetUrl" (uri & showToText)
@ -1338,75 +688,6 @@ httpTorrent span req =
| code <- statusCode -> Left [fmt|Redacted returned an non-200 error code, code {code}: {resp & showPretty}|]
)
newtype Optional a = OptionalInternal (Maybe a)
mkOptional :: a -> Optional a
mkOptional defaultValue = OptionalInternal $ Just defaultValue
defaults :: Optional a
defaults = OptionalInternal Nothing
instance HasField "withDefault" (Optional a) (a -> a) where
getField (OptionalInternal m) defaultValue = case m of
Nothing -> defaultValue
Just a -> a
httpJson ::
( MonadThrow m,
MonadOtel m
) =>
(Optional (Label "contentType" ByteString)) ->
Json.Parse ErrorTree b ->
Http.Request ->
m b
httpJson opts parser req = inSpan' "HTTP Request (JSON)" $ \span -> do
let opts' = opts.withDefault (label @"contentType" "application/json")
Http.httpBS req
>>= assertM
span
( \resp -> do
let statusCode = resp & Http.responseStatus & (.statusCode)
contentType =
resp
& Http.responseHeaders
& List.lookup "content-type"
<&> Wai.parseContentType
<&> (\(ct, _mimeAttributes) -> ct)
if
| statusCode == 200,
Just ct <- contentType,
ct == opts'.contentType ->
Right $ (resp & Http.responseBody)
| statusCode == 200,
Just otherType <- contentType ->
Left [fmt|Server returned a non-json body, with content-type "{otherType}"|]
| statusCode == 200,
Nothing <- contentType ->
Left [fmt|Server returned a body with unspecified content type|]
| code <- statusCode -> Left [fmt|Server returned an non-200 error code, code {code}: {resp & showPretty}|]
)
>>= assertM
span
( \body ->
Json.parseStrict parser body
& first (Json.parseErrorTree "could not parse redacted response")
)
redactedApiRequestJson ::
( MonadThrow m,
MonadLogger m,
HasField "action" p ByteString,
HasField "actionArgs" p [(ByteString, Maybe ByteString)],
MonadOtel m
) =>
p ->
Json.Parse ErrorTree a ->
m a
redactedApiRequestJson dat parser =
do
mkRedactedApiRequest dat
>>= httpJson defaults parser
runAppWith :: AppT IO a -> IO (Either TmpPg.StartError a)
runAppWith appT = withTracer $ \tracer -> withDb $ \db -> do
pgFormat <- readTools (label @"toolsEnvVar" "WHATCD_RESOLVER_TOOLS") (readTool "pg_format")
@ -1466,13 +747,3 @@ withDb act = do
-- print [fmt|data dir: {db & TmpPg.toDataDirectory}|]
-- print [fmt|conn string: {db & TmpPg.toConnectionString}|]
act db
class MonadTransmission m where
getTransmissionId :: m (Maybe ByteString)
setTransmissionId :: ByteString -> m ()
instance (MonadIO m) => MonadTransmission (AppT m) where
getTransmissionId = AppT (asks (.transmissionSessionId)) >>= tryTakeMVar
setTransmissionId t = do
var <- AppT $ asks (.transmissionSessionId)
putMVar var t

View file

@ -66,6 +66,8 @@ library
WhatcdResolver
AppT
Html
Transmission
Redacted
build-depends:
base >=4.15 && <5,