feat(users/Profpatsch): init openlab-tools

Back at my bullshit.

Mostly copied the setup from whatcd-resolver.

Change-Id: I9edd4387ee73c18816b1692d5338735536cce70f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9803
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
Autosubmit: Profpatsch <mail@profpatsch.de>
This commit is contained in:
Profpatsch 2023-10-19 22:54:00 +02:00 committed by clbot
parent 42d3c1a748
commit efbffcd12d
4 changed files with 484 additions and 0 deletions

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module Main where
import OpenlabTools qualified
main :: IO ()
main = OpenlabTools.main

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{ depot, pkgs, lib, ... }:
let
# bins = depot.nix.getBins pkgs.sqlite ["sqlite3"];
openlab-tools = pkgs.haskellPackages.mkDerivation {
pname = "openlab-tools";
version = "0.1.0";
src = depot.users.Profpatsch.exactSource ./. [
./openlab-tools.cabal
./Main.hs
./src/OpenlabTools.hs
];
libraryHaskellDepends = [
depot.users.Profpatsch.my-prelude
depot.users.Profpatsch.my-webstuff
pkgs.haskellPackages.pa-prelude
pkgs.haskellPackages.pa-label
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
pkgs.haskellPackages.hs-opentelemetry-sdk
pkgs.haskellPackages.http-conduit
pkgs.haskellPackages.http-types
pkgs.haskellPackages.monad-logger
pkgs.haskellPackages.selective
pkgs.haskellPackages.unliftio
pkgs.haskellPackages.wai-extra
pkgs.haskellPackages.warp
pkgs.haskellPackages.tagsoup
pkgs.haskellPackages.time
];
isExecutable = true;
isLibrary = false;
license = lib.licenses.mit;
};
bins = depot.nix.getBins openlab-tools [ "openlab-tools" ];
in
depot.nix.writeExecline "openlab-tools-wrapped" { } [
"importas"
"-i"
"PATH"
"PATH"
"export"
"PATH"
"${pkgs.postgresql}/bin:$${PATH}"
"export"
"OPENLAB_TOOLS_TOOLS"
(pkgs.linkFarm "openlab-tools-tools" [
{
name = "pg_format";
path = "${pkgs.pgformatter}/bin/pg_format";
}
])
bins.openlab-tools
]

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cabal-version: 3.0
name: openlab-tools
version: 0.1.0.0
author: Profpatsch
maintainer: mail@profpatsch.de
common common-options
ghc-options:
-Wall
-Wno-type-defaults
-Wunused-packages
-Wredundant-constraints
-fwarn-missing-deriving-strategies
-- See https://downloads.haskell.org/ghc/latest/docs/users_guide/exts.html
-- for a description of all these extensions
default-extensions:
-- Infer Applicative instead of Monad where possible
ApplicativeDo
-- Allow literal strings to be Text
OverloadedStrings
-- Syntactic sugar improvements
LambdaCase
MultiWayIf
-- Makes the (deprecated) usage of * instead of Data.Kind.Type an error
NoStarIsType
-- Convenient and crucial to deal with ambiguous field names, commonly
-- known as RecordDotSyntax
OverloadedRecordDot
-- does not export record fields as functions, use OverloadedRecordDot to access instead
NoFieldSelectors
-- Record punning
RecordWildCards
-- Improved Deriving
DerivingStrategies
DerivingVia
-- Type-level strings
DataKinds
-- to enable the `type` keyword in import lists (ormolu uses this automatically)
ExplicitNamespaces
default-language: GHC2021
library
import: common-options
hs-source-dirs: src
exposed-modules:
OpenlabTools
build-depends:
base >=4.15 && <5,
text,
my-prelude,
my-webstuff,
pa-prelude,
pa-error-tree,
pa-label,
pa-json,
pa-field-parser,
pa-pretty,
pa-run-command,
aeson-better-errors,
aeson,
blaze-html,
bytestring,
containers,
unordered-containers,
exceptions,
filepath,
hs-opentelemetry-sdk,
hs-opentelemetry-api,
http-conduit,
http-types,
monad-logger,
mtl,
network-uri,
scientific,
selective,
unliftio,
wai-extra,
wai,
warp,
tagsoup,
time
executable openlab-tools
import: common-options
main-is: Main.hs
ghc-options:
-threaded
build-depends:
base >=4.15 && <5,
openlab-tools

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{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE ScopedTypeVariables #-}
module OpenlabTools where
import Control.Monad.Logger qualified as Logger
import Control.Monad.Logger.CallStack
import Control.Monad.Reader
import Data.Aeson.BetterErrors qualified as Json
import Data.Error.Tree
import Data.HashMap.Strict qualified as HashMap
import Data.List qualified as List
import Data.Maybe (listToMaybe)
import Data.Text qualified as Text
import Data.Time (UTCTime, getCurrentTime)
import Data.Time.Clock (addUTCTime)
import Debug.Trace
import GHC.Records (HasField (..))
import GHC.Stack qualified
import Json qualified
import Label
import Network.HTTP.Client.Conduit qualified as Http
import Network.HTTP.Simple qualified as Http
import Network.HTTP.Types
import Network.HTTP.Types qualified as Http
import Network.Wai qualified as Wai
import Network.Wai.Handler.Warp qualified as Warp
import Network.Wai.Parse qualified as Wai
import OpenTelemetry.Trace qualified as Otel hiding (getTracer, inSpan, inSpan')
import OpenTelemetry.Trace.Core qualified as Otel hiding (inSpan, inSpan')
import OpenTelemetry.Trace.Monad qualified as Otel
import PossehlAnalyticsPrelude
import Pretty
import System.Environment qualified as Env
import System.IO qualified as IO
import Text.HTML.TagSoup qualified as Soup
import UnliftIO
import Prelude hiding (span, until)
heatmap :: AppT IO ByteString
heatmap = do
Http.httpBS [fmt|GET https://mapall.space/heatmap/show.php?id=OpenLab+Augsburg|]
<&> (.responseBody)
<&> Soup.parseTags
<&> Soup.canonicalizeTags
<&> findHeatmap
<&> fromMaybe ""
where
firstSection f t = t & Soup.sections f & listToMaybe
match :: Soup.Tag ByteString -> Soup.Tag ByteString -> Bool
match x (t :: Soup.Tag ByteString) = (Soup.~==) @ByteString t x
findHeatmap t =
t
& firstSection (match (Soup.TagOpen ("") [("class", "heatmap")]))
>>= firstSection (match (Soup.TagOpen "table" []))
<&> getTable
<&> Soup.renderTags
-- get the table from opening tag to closing tag (allowing nested tables)
getTable = go 0
where
go _ [] = []
go d (el : els)
| match (Soup.TagOpen "table" []) el = el : go (traceShowId $ d + 1) els
| match (Soup.TagClose "table") el = if d <= 1 then [el] else el : go (traceShowId $ d - 1) els
| otherwise = el : go d els
main :: IO ()
main =
runApp
-- ( do
-- -- todo: trace that to the init functions as well
-- Otel.inSpan "whatcd-resolver main function" Otel.defaultSpanArguments $ do
-- _ <- runTransaction migrate
-- htmlUi
-- )
inSpan :: (MonadUnliftIO m, Otel.MonadTracer m) => Text -> m a -> m a
inSpan name = Otel.inSpan name Otel.defaultSpanArguments
inSpan' :: (MonadUnliftIO m, Otel.MonadTracer m) => Text -> (Otel.Span -> m a) -> m a
inSpan' name = Otel.inSpan' name Otel.defaultSpanArguments
zipT2 ::
forall l1 l2 t1 t2.
( HasField l1 (T2 l1 [t1] l2 [t2]) [t1],
HasField l2 (T2 l1 [t1] l2 [t2]) [t2]
) =>
T2 l1 [t1] l2 [t2] ->
[T2 l1 t1 l2 t2]
zipT2 xs =
zipWith
(\t1 t2 -> T2 (label @l1 t1) (label @l2 t2))
(getField @l1 xs)
(getField @l2 xs)
unzipT2 :: forall l1 t1 l2 t2. [T2 l1 t1 l2 t2] -> T2 l1 [t1] l2 [t2]
unzipT2 xs = xs <&> toTup & unzip & fromTup
where
toTup :: forall a b. T2 a t1 b t2 -> (t1, t2)
toTup (T2 a b) = (getField @a a, getField @b b)
fromTup :: (a, b) -> T2 l1 a l2 b
fromTup (t1, t2) = T2 (label @l1 t1) (label @l2 t2)
unzipT3 :: forall l1 t1 l2 t2 l3 t3. [T3 l1 t1 l2 t2 l3 t3] -> T3 l1 [t1] l2 [t2] l3 [t3]
unzipT3 xs = xs <&> toTup & unzip3 & fromTup
where
toTup :: forall a b c. T3 a t1 b t2 c t3 -> (t1, t2, t3)
toTup (T3 a b c) = (getField @a a, getField @b b, getField @c c)
fromTup :: (a, b, c) -> T3 l1 a l2 b l3 c
fromTup (t1, t2, t3) = T3 (label @l1 t1) (label @l2 t2) (label @l3 t3)
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 ::
( MonadIO m,
MonadThrow m
) =>
(Optional (Label "contentType" ByteString)) ->
Otel.Span ->
Json.Parse ErrorTree b ->
Http.Request ->
m b
httpJson opts span parser req = 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")
)
assertM :: (MonadThrow f, MonadIO f) => Otel.Span -> (t -> Either ErrorTree a) -> t -> f a
assertM span f v = case f v of
Right a -> pure a
Left err -> appThrowTree span err
data Cache a = Cache
{ until :: UTCTime,
result :: a
}
newCache result = do
until <- getCurrentTime
newIORef Cache {..}
updateCache cache result = do
until <- getCurrentTime <&> ((5 * 60) `addUTCTime`)
_ <- writeIORef cache Cache {..}
pure ()
updateCacheIfNewer :: (MonadUnliftIO m) => IORef (Cache b) -> m b -> m b
updateCacheIfNewer cache act = withRunInIO $ \runInIO -> do
old <- readIORef cache
now <- getCurrentTime
if old.until < now
then do
res <- runInIO act
updateCache cache res
pure res
else pure old.result
runApp :: IO ()
runApp = withTracer $ \tracer -> do
cache <- newCache ""
let appT = withRunInIO $ \runInIO -> Warp.run 9099 $ \req respond -> do
new <- runInIO $ updateCacheIfNewer cache heatmap
respond $ Wai.responseLBS Http.status200 [] (new & toLazyBytes)
runReaderT appT.unAppT Context {..}
-- pgFormat <- readTools (label @"toolsEnvVar" "OPENLAB_TOOLS_TOOLS") (readTool "pg_format")
-- let config = label @"logDatabaseQueries" LogDatabaseQueries
-- pgConnPool <-
-- Pool.newPool $
-- Pool.defaultPoolConfig
-- {- resource init action -} (Postgres.connectPostgreSQL (db & TmpPg.toConnectionString))
-- {- resource destruction -} Postgres.close
-- {- unusedResourceOpenTime -} 10
-- {- max resources across all stripes -} 20
-- transmissionSessionId <- newEmptyMVar
-- let newAppT = do
-- logInfo [fmt|Running with config: {showPretty config}|]
-- logInfo [fmt|Connected to database at {db & TmpPg.toDataDirectory} on socket {db & TmpPg.toConnectionString}|]
-- appT
-- runReaderT newAppT.unAppT Context {..}
withTracer :: (Otel.Tracer -> IO c) -> IO c
withTracer f = do
setDefaultEnv "OTEL_SERVICE_NAME" "whatcd-resolver"
bracket
-- Install the SDK, pulling configuration from the environment
Otel.initializeGlobalTracerProvider
-- Ensure that any spans that haven't been exported yet are flushed
Otel.shutdownTracerProvider
-- Get a tracer so you can create spans
(\tracerProvider -> f $ Otel.makeTracer tracerProvider "whatcd-resolver" Otel.tracerOptions)
setDefaultEnv :: String -> String -> IO ()
setDefaultEnv envName defaultValue = do
Env.lookupEnv envName >>= \case
Just _env -> pure ()
Nothing -> Env.setEnv envName defaultValue
data Context = Context
{ tracer :: Otel.Tracer
}
newtype AppT m a = AppT {unAppT :: ReaderT Context m a}
deriving newtype (Functor, Applicative, Monad, MonadIO, MonadUnliftIO, MonadThrow)
data AppException = AppException Text
deriving stock (Show)
deriving anyclass (Exception)
-- | A specialized variant of @addEvent@ that records attributes conforming to
-- the OpenTelemetry specification's
-- <https://github.com/open-telemetry/opentelemetry-specification/blob/49c2f56f3c0468ceb2b69518bcadadd96e0a5a8b/specification/trace/semantic_conventions/exceptions.md semantic conventions>
--
-- @since 0.0.1.0
recordException ::
( MonadIO m,
HasField "message" r Text,
HasField "type_" r Text
) =>
Otel.Span ->
r ->
m ()
recordException span dat = liftIO $ do
callStack <- GHC.Stack.whoCreated dat.message
newEventTimestamp <- Just <$> Otel.getTimestamp
Otel.addEvent span $
Otel.NewEvent
{ newEventName = "exception",
newEventAttributes =
HashMap.fromList
[ ("exception.type", Otel.toAttribute @Text dat.type_),
("exception.message", Otel.toAttribute @Text dat.message),
("exception.stacktrace", Otel.toAttribute @Text $ Text.unlines $ map stringToText callStack)
],
..
}
appThrowTree :: (MonadThrow m, MonadIO m) => Otel.Span -> ErrorTree -> m a
appThrowTree span exc = do
let msg = prettyErrorTree exc
recordException
span
( T2
(label @"type_" "AppException")
(label @"message" msg)
)
throwM $ AppException msg
orAppThrowTree :: (MonadThrow m, MonadIO m) => Otel.Span -> Either ErrorTree a -> m a
orAppThrowTree span = \case
Left err -> appThrowTree span err
Right a -> pure a
instance (MonadIO m) => MonadLogger (AppT m) where
monadLoggerLog loc src lvl msg = liftIO $ Logger.defaultOutput IO.stderr loc src lvl (Logger.toLogStr msg)
instance (Monad m) => Otel.MonadTracer (AppT m) where
getTracer = AppT $ asks (.tracer)