pms-infra-agent-process (empty) → 0.0.1.0
raw patch · 11 files changed
+1392/−0 lines, 11 filesdep +aesondep +asyncdep +base
Dependencies added: aeson, async, base, bytestring, conduit, containers, data-default, directory, fast-logger, filepath, hspec, hspec-discover, lens, monad-logger, mtl, pms-domain-model, pms-infra-agent-process, process, safe-exceptions, stm, strip-ansi-escape, text, transformers
Files
- CHANGELOG.md +5/−0
- LICENSE +202/−0
- README.md +74/−0
- pms-infra-agent-process.cabal +141/−0
- src/PMS/Infra/Agent/Process/App/Control.hs +61/−0
- src/PMS/Infra/Agent/Process/DM/Constant.hs +17/−0
- src/PMS/Infra/Agent/Process/DM/Type.hs +105/−0
- src/PMS/Infra/Agent/Process/DS/Core.hs +306/−0
- src/PMS/Infra/Agent/Process/DS/Utility.hs +152/−0
- test/PMS/Infra/Agent/Process/App/ControlSpec.hs +328/−0
- test/Spec.hs +1/−0
+ CHANGELOG.md view
@@ -0,0 +1,5 @@+# Revision history for pms-infra-agent-process++## 0.0.1.0 -- 2025-05-05++* First version.
+ LICENSE view
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+ README.md view
@@ -0,0 +1,74 @@+# pms-infra-agent-process++----+## ⚠️ Caution++**Do not grant unrestricted control to AI.** +Unsupervised use or misuse may lead to unintended consequences. +All AI systems must remain strictly under human oversight and control. +Use responsibly, with full awareness and at your own risk. ++----+## 📘 Overview++**`pms-infra-agent-process`** is a Haskell infrastructure library that provides AI agents with direct, low-level control over external processes via standard input/output.++Unlike PTY-based tools, this library communicates with spawned processes directly through `stdin`/`stdout`/`stderr` handles, without allocating a pseudo-terminal. This makes it well-suited for non-TUI programs that communicate via plain text streams, such as language servers, compilers, or custom automation scripts.++The library is a core component of the [`pty-mcp-server`](https://github.com/phoityne/pty-mcp-server) ecosystem and implements the `agent-proc-*` family of MCP tools.++---++## 🔧 Provided MCP Tools++### `agent-proc-run`+Spawns an external process with the specified command and options. The process's `stdin`/`stdout` are connected for subsequent `agent-proc-read` and `agent-proc-write` operations. Only one process can be active at a time.++Supports an `allowedAgentCmds` whitelist — if configured, only commands present in the whitelist are permitted to run.++### `agent-proc-read`+Reads up to the specified number of bytes from the `stdout` of the running process. Returns immediately with available data (non-blocking). Returns an empty string if no data is available.++### `agent-proc-write`+Writes the specified string to the `stdin` of the running process.++### `agent-proc-terminate`+Forcefully terminates the currently running process. Resets internal state so `agent-proc-run` can be called again.++---++## 🏗️ Architecture++### Module Structure++```+PMS.Infra.Agent.Process+├── DM.Type -- Data type definitions (ProcData, AppData, tool parameter types)+├── DM.Constant -- Constants+├── DS.Core -- Core domain service logic+├── DS.Utility -- Utility functions+└── App.Control -- Application control: tool dispatch and process lifecycle management+```++### Key Design Points++- **Single active process**: Only one process can run at a time per server instance. State is managed via `STM.TMVar`.+- **Non-blocking reads**: `agent-proc-read` returns immediately without blocking, allowing the agent to poll at its own pace.+- **Whitelist enforcement**: `agent-proc-run` checks the command against `allowedAgentCmds` from the configuration before spawning. If the list is empty, all commands are denied by default.+- **Direct stdio**: No PTY allocation. Suitable for programs that do not require a terminal environment.++---++## 📦 Dependencies++- [`pms-domain-model`](https://github.com/phoityne/pms-domain-model)++---++## 📜 Credits & License++- **Execution & Process Lead:** Sonnet 4.6, Gemini 3 Flash+- **Direction & Policy:** phoityne+- **License:** Apache-2.0 — see [LICENSE](./LICENSE)++---
+ pms-infra-agent-process.cabal view
@@ -0,0 +1,141 @@+cabal-version: 2.4+-- The cabal-version field refers to the version of the .cabal specification,+-- and can be different from the cabal-install (the tool) version and the+-- Cabal (the library) version you are using. As such, the Cabal (the library)+-- version used must be equal or greater than the version stated in this field.+-- Starting from the specification version 2.2, the cabal-version field must be+-- the first thing in the cabal file.++-- Initial package description 'pms-infra-agent-process' generated by+-- 'cabal init'. For further documentation, see:+-- http://haskell.org/cabal/users-guide/+--+-- The name of the package.+name: pms-infra-agent-process++-- The package version.+-- See the Haskell package versioning policy (PVP) for standards+-- guiding when and how versions should be incremented.+-- https://pvp.haskell.org+-- PVP summary: +-+------- breaking API changes+-- | | +----- non-breaking API additions+-- | | | +--- code changes with no API change+version: 0.0.1.0++-- A short (one-line) description of the package.+synopsis: pms-infra-agent-process++-- A longer description of the package.+description: README.md++-- The license under which the package is released.+license: Apache-2.0++-- The file containing the license text.+license-file: LICENSE++-- The package author(s).+author: phoityne.hs@gmail.com++-- An email address to which users can send suggestions, bug reports, and patches.+maintainer: phoityne.hs@gmail.com++-- A copyright notice.+copyright: 2025-2026 phoityne.hs@gmail.com+category: AI+build-type: Simple+homepage: https://github.com/phoityne/pms-infra-agent-process+bug-reports: https://github.com/phoityne/pms-infra-agent-process/issues++-- Extra doc files to be distributed with the package, such as a CHANGELOG or a README.+extra-doc-files: README.md,+ CHANGELOG.md++-- Extra source files to be distributed with the package, such as examples, or a tutorial module.+-- extra-source-files:+++library+ -- Import common warning flags.+ ghc-options: -Wall -threaded++ -- Modules exported by the library.+ exposed-modules: PMS.Infra.Agent.Process.DM.Type,+ PMS.Infra.Agent.Process.DS.Utility,+ PMS.Infra.Agent.Process.DM.Constant,+ PMS.Infra.Agent.Process.App.Control,+ PMS.Infra.Agent.Process.DS.Core++ -- Modules included in this library but not exported.+ -- other-modules:++ -- LANGUAGE extensions used by modules in this package.+ -- other-extensions:++ -- Other library packages from which modules are imported.+ build-depends: base >= 4.18 && < 5,+ containers,+ data-default,+ monad-logger,+ mtl,+ lens,+ text,+ safe-exceptions,+ fast-logger,+ conduit,+ bytestring,+ transformers,+ stm,+ async,+ process,+ filepath,+ aeson,+ directory,+ strip-ansi-escape,+ pms-domain-model++ -- Directories containing source files.+ hs-source-dirs: src++ -- Base language which the package is written in.+ default-language: Haskell2010+ -- default-extensions: LambdaCase++test-suite pms-infra-agent-process-test+ -- Import common warning flags.+ ghc-options: -Wall -threaded++ -- Base language which the package is written in.+ default-language: Haskell2010++ -- Modules included in this executable, other than Main.+ other-modules: PMS.Infra.Agent.Process.App.ControlSpec++ -- LANGUAGE extensions used by modules in this package.+ -- other-extensions:++ -- The interface type and version of the test suite.+ type: exitcode-stdio-1.0++ -- Directories containing source files.+ hs-source-dirs: test++ -- The entrypoint to the test suite.+ main-is: Spec.hs++ -- Test dependencies.+ build-depends: base >= 4.18 && < 5,+ hspec,+ hspec-discover,+ data-default,+ stm,+ monad-logger,+ async,+ lens,+ bytestring,+ aeson,+ pms-domain-model,+ pms-infra-agent-process++ build-tool-depends:+ hspec-discover:hspec-discover
+ src/PMS/Infra/Agent/Process/App/Control.hs view
@@ -0,0 +1,61 @@+{-# LANGUAGE LambdaCase #-}++module PMS.Infra.Agent.Process.App.Control where++import System.IO+import qualified Control.Exception.Safe as E+import System.Log.FastLogger++import qualified PMS.Domain.Model.DM.Type as DM+import qualified PMS.Domain.Model.DS.Utility as DM++import PMS.Infra.Agent.Process.DM.Type+import PMS.Infra.Agent.Process.DM.Constant+import PMS.Infra.Agent.Process.DS.Utility+import PMS.Infra.Agent.Process.DS.Core++-- |+--+run :: DM.DomainContext ()+run domDat = do+ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.App.Control.run called."+ appDat <- defaultAppData+ runWithAppData appDat domDat++-- |+--+runWithAppData :: AppData -> DM.DomainContext ()+runWithAppData appDat domDat = do+ logDat <- DM.createLogger domDat _LOG_FILE_NAME+ runWithLogger logDat appDat domDat++-- |+--+runWithLogger :: (TimedFastLogger, IO ()) -> AppData -> DM.DomainContext ()+runWithLogger (logger, finalizeLogger) appDat domDat = + flip E.catchAny exception+ $ flip E.finally finalize+ $ runApp domDat appDat logger app+ >>= \case+ Right x -> return x+ Left e -> errorEnd e++ where+ finalize = do+ hPutStrLn stderr "-----------------------------------------------------------------------------"+ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.App.Control.run finalize called."+ finalizeLogger+ hPutStrLn stderr "-----------------------------------------------------------------------------"++ exception e = do+ hPutStrLn stderr "-----------------------------------------------------------------------------"+ hPutStrLn stderr "[ERROR] PMS.Infra.Agent.Process.App.Control.run exception occurred."+ hPutStrLn stderr $ show e+ hPutStrLn stderr "-----------------------------------------------------------------------------"+ E.throwIO e++ errorEnd e = do+ hPutStrLn stderr "-----------------------------------------------------------------------------"+ hPutStrLn stderr "[ERROR] PMS.Infra.Agent.Process.App.Control.run end with error."+ hPutStrLn stderr $ show e+ hPutStrLn stderr "-----------------------------------------------------------------------------"
+ src/PMS/Infra/Agent/Process/DM/Constant.hs view
@@ -0,0 +1,17 @@+module PMS.Infra.Agent.Process.DM.Constant where++--------------------------------------------------------------------------------+-- |+--+_LOG_FILE_NAME :: String+_LOG_FILE_NAME = "pms-infra-agent-process.log"++-- |+--+_READ_BUFFER_SIZE :: Int+_READ_BUFFER_SIZE = 4096++-- | Wait time for proc-read input (milliseconds).+-- Minimum wait to return an empty string immediately when no data is available.+_PROC_READ_WAIT_MSEC :: Int+_PROC_READ_WAIT_MSEC = 100
+ src/PMS/Infra/Agent/Process/DM/Type.hs view
@@ -0,0 +1,105 @@+{-# LANGUAGE TemplateHaskell #-}++module PMS.Infra.Agent.Process.DM.Type where++import Control.Monad.Logger+import Control.Monad.Reader+import Control.Monad.Except+import Control.Lens+import Data.Default+import Data.Aeson.TH+import Data.Map.Strict (Map)+import qualified Control.Concurrent.STM as STM+import qualified System.Process as S+import qualified GHC.IO.Handle as S++import qualified PMS.Domain.Model.DM.Type as DM+import qualified PMS.Domain.Model.DM.TH as DM++-- |+--+data ProcData = ProcData {+ _wHdLProcData :: S.Handle+ , _rHdlProcData :: S.Handle+ , _eHdlProcData :: S.Handle+ , _pHdlProcData :: S.ProcessHandle+ }++makeLenses ''ProcData++-- |+--+data AppData = AppData {+ _processAppData :: STM.TMVar (Maybe ProcData)+ }++makeLenses ''AppData++defaultAppData :: IO AppData+defaultAppData = do+ mgrVar <- STM.newTMVarIO Nothing+ return AppData {+ _processAppData = mgrVar+ }++-- |+--+type AppContext = ReaderT AppData (ReaderT DM.DomainData (ExceptT DM.ErrorData (LoggingT IO)))++-- |+--+type IOTask = IO+++--------------------------------------------------------------------------------------------+-- |+-- agent-proc-run の options オブジェクト+--+data ProcRunToolParams =+ ProcRunToolParams {+ _commandProcRunToolParams :: String+ , _argumentsProcRunToolParams :: Maybe [String]+ , _environmentProcRunToolParams :: Maybe (Map String String)+ } deriving (Show, Read, Eq)++$(deriveJSON defaultOptions {fieldLabelModifier = DM.dropDataName "ProcRunToolParams", omitNothingFields = True} ''ProcRunToolParams)+makeLenses ''ProcRunToolParams++instance Default ProcRunToolParams where+ def = ProcRunToolParams {+ _commandProcRunToolParams = def+ , _argumentsProcRunToolParams = def+ , _environmentProcRunToolParams = def+ }++-- |+-- agent-proc-read の arguments+--+data ProcIntToolParams =+ ProcIntToolParams {+ _argumentsProcIntToolParams :: Int+ } deriving (Show, Read, Eq)++$(deriveJSON defaultOptions {fieldLabelModifier = DM.dropDataName "ProcIntToolParams", omitNothingFields = True} ''ProcIntToolParams)+makeLenses ''ProcIntToolParams++instance Default ProcIntToolParams where+ def = ProcIntToolParams {+ _argumentsProcIntToolParams = def+ }++-- |+-- agent-proc-write の arguments+--+data ProcStringToolParams =+ ProcStringToolParams {+ _argumentsProcStringToolParams :: String+ } deriving (Show, Read, Eq)++$(deriveJSON defaultOptions {fieldLabelModifier = DM.dropDataName "ProcStringToolParams", omitNothingFields = True} ''ProcStringToolParams)+makeLenses ''ProcStringToolParams++instance Default ProcStringToolParams where+ def = ProcStringToolParams {+ _argumentsProcStringToolParams = def+ }
+ src/PMS/Infra/Agent/Process/DS/Core.hs view
@@ -0,0 +1,306 @@+{-# LANGUAGE TemplateHaskell #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE LambdaCase #-}+{-# LANGUAGE FlexibleContexts #-}++module PMS.Infra.Agent.Process.DS.Core where++import System.IO+import Control.Monad.Logger+import Control.Monad.IO.Class+import Control.Lens+import Control.Monad.Reader+import Control.Concurrent.Async+import qualified Control.Concurrent.STM as STM+import Data.Conduit+import qualified Data.Text as T+import Control.Monad.Except+import Control.Monad (when)+import qualified Control.Exception.Safe as E+import System.Exit+import qualified Data.ByteString as BS+import Data.Aeson+import qualified System.Process as S+import qualified Data.Map.Strict as Map++import qualified PMS.Domain.Model.DM.Type as DM+import qualified PMS.Domain.Model.DM.Constant as DM++import PMS.Infra.Agent.Process.DM.Type+import qualified PMS.Infra.Agent.Process.DM.Constant as DM_CONST+import PMS.Infra.Agent.Process.DS.Utility+++-- |+--+app :: AppContext ()+app = do+ $logDebugS DM._LOGTAG "app called."+ runConduit pipeline+ where+ pipeline :: ConduitM () Void AppContext ()+ pipeline = src .| cmd2task .| sink++---------------------------------------------------------------------------------+-- |+--+src :: ConduitT () DM.AgentProcessCommand AppContext ()+src = lift go >>= yield >> src+ where+ go :: AppContext DM.AgentProcessCommand+ go = do+ queue <- view DM.agentProcessQueueDomainData <$> lift ask+ dat <- liftIO $ STM.atomically $ STM.readTQueue queue+ return dat++---------------------------------------------------------------------------------+-- |+--+cmd2task :: ConduitT DM.AgentProcessCommand (IOTask ()) AppContext ()+cmd2task = await >>= \case+ Just cmd -> flip catchError (errHdl cmd) $ do+ lift (go cmd) >>= yield >> cmd2task+ Nothing -> do+ $logWarnS DM._LOGTAG "cmd2task: await returns nothing. skip."+ cmd2task++ where+ errHdl :: DM.AgentProcessCommand -> String -> ConduitT DM.AgentProcessCommand (IOTask ()) AppContext ()+ errHdl procCmd msg = do+ let jsonrpc = DM.getJsonRpcAgentProcessCommand procCmd+ $logWarnS DM._LOGTAG $ T.pack $ "cmd2task: exception occurred. skip. " ++ msg+ lift $ errorToolsCallResponse jsonrpc $ "cmd2task: exception occurred. skip. " ++ msg+ cmd2task++ go :: DM.AgentProcessCommand -> AppContext (IOTask ())+ go (DM.AgentProcessEchoCommand dat) = genEchoTask dat+ go (DM.AgentProcessRunCommand dat) = genProcRunTask dat+ go (DM.AgentProcessReadCommand dat) = genProcReadTask dat+ go (DM.AgentProcessWriteCommand dat) = genProcWriteTask dat+ go (DM.AgentProcessTerminateCommand dat) = genProcTerminateTask dat++---------------------------------------------------------------------------------+-- |+--+sink :: ConduitT (IOTask ()) Void AppContext ()+sink = await >>= \case+ Just req -> flip catchError errHdl $ do+ lift (go req) >> sink+ Nothing -> do+ $logWarnS DM._LOGTAG "sink: await returns nothing. skip."+ sink++ where+ errHdl :: String -> ConduitT (IOTask ()) Void AppContext ()+ errHdl msg = do+ $logWarnS DM._LOGTAG $ T.pack $ "sink: exception occurred. skip. " ++ msg+ sink++ go :: (IO ()) -> AppContext ()+ go task = do+ $logDebugS DM._LOGTAG "sink: start async."+ _ <- liftIOE $ async task+ $logDebugS DM._LOGTAG "sink: end async."+ return ()+++---------------------------------------------------------------------------------+-- |+--+genEchoTask :: DM.AgentProcessEchoCommandData -> AppContext (IOTask ())+genEchoTask dat = do+ resQ <- view DM.responseQueueDomainData <$> lift ask+ let val = dat^.DM.valueAgentProcessEchoCommandData++ $logDebugS DM._LOGTAG $ T.pack $ "echoTask: echo : " ++ val+ return $ echoTask resQ dat val+++-- |+--+echoTask :: STM.TQueue DM.McpResponse -> DM.AgentProcessEchoCommandData -> String -> IOTask ()+echoTask resQ cmdDat val = flip E.catchAny errHdl $ do+ hPutStrLn stderr $ "[INFO] PMS.Infra.Agent.Process.DS.Core.echoTask run. " ++ val+ toolsCallResponse resQ (cmdDat^.DM.jsonrpcAgentProcessEchoCommandData) ExitSuccess val ""+ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.DS.Core.echoTask end."++ where+ errHdl :: E.SomeException -> IO ()+ errHdl e = toolsCallResponse resQ (cmdDat^.DM.jsonrpcAgentProcessEchoCommandData) (ExitFailure 1) "" (show e)+++---------------------------------------------------------------------------------+-- |+--+genProcRunTask :: DM.AgentProcessRunCommandData -> AppContext (IOTask ())+genProcRunTask cmdDat = do+ let argsBS = DM.unRawJsonByteString $ cmdDat^.DM.argumentsAgentProcessRunCommandData+ resQ <- view DM.responseQueueDomainData <$> lift ask+ procTMVar <- view processAppData <$> ask+ argsDat <- liftEither $ eitherDecode argsBS+ let cmd = argsDat^.commandProcRunToolParams+ argsArray = maybe [] id (argsDat^.argumentsProcRunToolParams)+ envMap = argsDat^.environmentProcRunToolParams+ addEnv = maybe [] Map.toList envMap+ -- whitelist check: deny all if list is empty or cmd not in list+ allowedCmds <- view DM.allowedAgentCmdsDomainData <$> lift ask+ when (null allowedCmds || cmd `notElem` allowedCmds) $+ throwError $ "command not allowed: " ++ cmd+ return $ procRunTask cmdDat resQ procTMVar cmd argsArray addEnv+++-- |+--+procRunTask :: DM.AgentProcessRunCommandData+ -> STM.TQueue DM.McpResponse+ -> STM.TMVar (Maybe ProcData)+ -> String+ -> [String]+ -> [(String, String)]+ -> IOTask ()+procRunTask cmdDat resQ procTMVar cmd argsArray addEnv = flip E.catchAny errHdl $ do+ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.DS.Core.procRunTask run."+ STM.atomically (STM.takeTMVar procTMVar) >>= \case+ Just p -> do+ STM.atomically $ STM.putTMVar procTMVar (Just p)+ hPutStrLn stderr "[ERROR] PMS.Infra.Agent.Process.DS.Core.procRunTask: process is already running."+ toolsCallResponse resQ jsonRpc (ExitFailure 1) "" "process is already running."+ Nothing -> do+ runProc procTMVar cmd argsArray addEnv+ let payload = "command: " ++ truncate10 cmd+ ++ ", arguments: " ++ truncate10 (show argsArray)+ ++ ", environment: " ++ truncate10 (show addEnv)+ toolsCallResponse resQ jsonRpc ExitSuccess payload ""+ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.DS.Core.procRunTask end."+ where+ jsonRpc = cmdDat^.DM.jsonrpcAgentProcessRunCommandData+ errHdl :: E.SomeException -> IO ()+ errHdl e = do+ _ <- STM.atomically $ STM.tryTakeTMVar procTMVar+ STM.atomically $ STM.putTMVar procTMVar Nothing+ toolsCallResponse resQ jsonRpc (ExitFailure 1) "" (show e)++ -- |+ -- Truncate a string to at most 10 characters, appending "..." if truncated.+ truncate10 :: String -> String+ truncate10 s+ | length s <= 10 = s+ | otherwise = take 10 s ++ "..."+++---------------------------------------------------------------------------------+-- |+-- Generate a task to terminate the running process.+genProcTerminateTask :: DM.AgentProcessTerminateCommandData -> AppContext (IOTask ())+genProcTerminateTask dat = do+ $logDebugS DM._LOGTAG $ T.pack $ "genProcTerminateTask called. "+ procTMVar <- view processAppData <$> ask+ resQ <- view DM.responseQueueDomainData <$> lift ask+ return $ procTerminateTask dat resQ procTMVar++-- |+-- Terminate the running process and reset the TMVar to Nothing.+-- Always returns ExitSuccess if terminateProcess completes without exception.+-- The exit code from waitForProcess is recorded in the log only.+procTerminateTask :: DM.AgentProcessTerminateCommandData+ -> STM.TQueue DM.McpResponse+ -> STM.TMVar (Maybe ProcData)+ -> IOTask ()+procTerminateTask cmdDat resQ procTMVar = flip E.catchAny errHdl $ do+ hPutStrLn stderr $ "[INFO] PMS.Infra.Agent.Process.DS.Core.procTerminateTask run. "+ let jsonRpc = cmdDat^.DM.jsonrpcAgentProcessTerminateCommandData++ STM.atomically (STM.swapTMVar procTMVar Nothing) >>= \case+ Nothing -> do+ hPutStrLn stderr "[ERROR] PMS.Infra.Agent.Process.DS.Core.procTerminateTask: process is not started."+ toolsCallResponse resQ jsonRpc (ExitFailure 1) "" "process is not started."+ Just procDat -> do+ let pHdl = procDat^.pHdlProcData+ S.terminateProcess pHdl+ exitCode <- S.waitForProcess pHdl+ hPutStrLn stderr $ "[INFO] PMS.Infra.Agent.Process.DS.Core.procTerminateTask closeProc : " ++ show exitCode+ toolsCallResponse resQ jsonRpc ExitSuccess "" "process is terminated."++ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.DS.Core.procTerminateTask end."++ where+ errHdl :: E.SomeException -> IO ()+ errHdl e = toolsCallResponse resQ (cmdDat^.DM.jsonrpcAgentProcessTerminateCommandData) (ExitFailure 1) "" (show e)+++---------------------------------------------------------------------------------+-- |+-- Use DM_CONST._PROC_READ_WAIT_MSEC (100msec) as the timeout value.+-- External config (timeoutMicrosecDomainData) is not used.+genProcReadTask :: DM.AgentProcessReadCommandData -> AppContext (IOTask ())+genProcReadTask cmdData = do+ resQ <- view DM.responseQueueDomainData <$> lift ask+ procTMVar <- view processAppData <$> ask+ let argsBS = DM.unRawJsonByteString $ cmdData^.DM.argumentsAgentProcessReadCommandData+ argsDat <- liftEither $ eitherDecode $ argsBS+ let size = argsDat^.argumentsProcIntToolParams+ actualSize = min size DM_CONST._READ_BUFFER_SIZE+ return $ procReadTask cmdData resQ procTMVar DM_CONST._PROC_READ_WAIT_MSEC actualSize++-- |+--+procReadTask :: DM.AgentProcessReadCommandData+ -> STM.TQueue DM.McpResponse+ -> STM.TMVar (Maybe ProcData)+ -> Int+ -> Int+ -> IOTask ()+procReadTask cmdDat resQ procTMVar tout actualSize = flip E.catchAny errHdl $ do+ hPutStrLn stderr $ "[INFO] PMS.Infra.Agent.Process.DS.Core.procReadTask run. actualSize: " ++ show actualSize++ STM.atomically (STM.readTMVar procTMVar) >>= \case+ Nothing -> do+ hPutStrLn stderr "[ERROR] PMS.Infra.Agent.Process.DS.Core.procReadTask: process is not started."+ toolsCallResponse resQ jsonRpc (ExitFailure 1) "" "process is not started."+ Just p -> do+ output <- readProc p tout actualSize+ let result = bs2strUTF8 output+ toolsCallResponse resQ jsonRpc ExitSuccess result ""++ where+ jsonRpc = cmdDat^.DM.jsonrpcAgentProcessReadCommandData+ errHdl e = toolsCallResponse resQ jsonRpc (ExitFailure 1) "" (show e)+++---------------------------------------------------------------------------------+-- |+--+genProcWriteTask :: DM.AgentProcessWriteCommandData -> AppContext (IOTask ())+genProcWriteTask cmdData = do+ let argsBS = DM.unRawJsonByteString $ cmdData^.DM.argumentsAgentProcessWriteCommandData+ resQ <- view DM.responseQueueDomainData <$> lift ask+ procTMVar <- view processAppData <$> ask+ argsDat <- liftEither $ eitherDecode $ argsBS+ let args = argsDat^.argumentsProcStringToolParams+ return $ procWriteTask cmdData resQ procTMVar args++-- |+--+procWriteTask :: DM.AgentProcessWriteCommandData+ -> STM.TQueue DM.McpResponse+ -> STM.TMVar (Maybe ProcData)+ -> String+ -> IOTask ()+procWriteTask cmdDat resQ procTMVar args = flip E.catchAny errHdl $ do+ hPutStrLn stderr $ "[INFO] PMS.Infra.Agent.Process.DS.Core.procWriteTask run. " ++ args++ STM.atomically (STM.readTMVar procTMVar) >>= \case+ Nothing -> do+ hPutStrLn stderr "[ERROR] PMS.Infra.Agent.Process.DS.Core.procWriteTask: process is not started."+ toolsCallResponse resQ jsonRpc (ExitFailure 1) "" "process is not started."+ Just p -> do+ let wHdl = p^.wHdLProcData+ cmd = str2bsUTF8 $ appendLF args+ BS.hPut wHdl cmd+ hFlush wHdl+ toolsCallResponse resQ jsonRpc ExitSuccess "success" ""++ where+ jsonRpc = cmdDat^.DM.jsonrpcAgentProcessWriteCommandData+ errHdl e = toolsCallResponse resQ jsonRpc (ExitFailure 1) "" (show e)+
+ src/PMS/Infra/Agent/Process/DS/Utility.hs view
@@ -0,0 +1,152 @@+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE LambdaCase #-}++module PMS.Infra.Agent.Process.DS.Utility where++import System.IO+import Control.Lens+import System.Exit+import System.Log.FastLogger+import qualified Control.Exception.Safe as E+import Control.Monad.IO.Class+import Control.Monad.Except+import Control.Monad.Reader+import qualified Control.Concurrent.STM as STM+import qualified System.Process as S+import qualified Data.ByteString as BS+import qualified Data.Text as T+import qualified Data.Text.Encoding as TE+import qualified Data.Text.Encoding.Error as TEE+import qualified Data.String.AnsiEscapeCodes.Strip.Text as ANSI+import qualified System.Environment as Env++import qualified PMS.Domain.Model.DM.Type as DM+import qualified PMS.Domain.Model.DM.Constant as DM+import qualified PMS.Domain.Model.DS.Utility as DM+import PMS.Infra.Agent.Process.DM.Type++-- |+--+runApp :: DM.DomainData -> AppData -> TimedFastLogger -> AppContext a -> IO (Either DM.ErrorData a)+runApp domDat appDat logger ctx =+ DM.runFastLoggerT domDat logger+ $ runExceptT+ $ flip runReaderT domDat+ $ runReaderT ctx appDat+++-- |+--+liftIOE :: IO a -> AppContext a+liftIOE f = liftIO (go f) >>= liftEither+ where+ go :: IO b -> IO (Either String b)+ go x = E.catchAny (Right <$> x) errHdl++ errHdl :: E.SomeException -> IO (Either String a)+ errHdl = return . Left . show++---------------------------------------------------------------------------------+-- |+--+toolsCallResponse :: STM.TQueue DM.McpResponse+ -> DM.JsonRpcRequest+ -> ExitCode+ -> String+ -> String+ -> IO ()+toolsCallResponse resQ jsonRpc code outStr errStr = do+ let content = [ DM.McpToolsCallResponseResultContent "text" outStr+ , DM.McpToolsCallResponseResultContent "text" errStr+ ]+ result = DM.McpToolsCallResponseResult {+ DM._contentMcpToolsCallResponseResult = content+ , DM._isErrorMcpToolsCallResponseResult = (ExitSuccess /= code)+ }+ resDat = DM.McpToolsCallResponseData jsonRpc result+ res = DM.McpToolsCallResponse resDat++ STM.atomically $ STM.writeTQueue resQ res++-- |+--+errorToolsCallResponse :: DM.JsonRpcRequest -> String -> AppContext ()+errorToolsCallResponse jsonRpc errStr = do+ let content = [ DM.McpToolsCallResponseResultContent "text" errStr ]+ result = DM.McpToolsCallResponseResult {+ DM._contentMcpToolsCallResponseResult = content+ , DM._isErrorMcpToolsCallResponseResult = True+ }+ resDat = DM.McpToolsCallResponseData jsonRpc result+ res = DM.McpToolsCallResponse resDat++ resQ <- view DM.responseQueueDomainData <$> lift ask+ liftIOE $ STM.atomically $ STM.writeTQueue resQ res++-- |+--+runProc :: STM.TMVar (Maybe ProcData) -> String -> [String] -> [(String, String)] -> IO ()+runProc procVar cmd args addEnv = do++ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.DS.Core.procRunTask.runProc start."++ (fromPtyHandle, toProcHandle) <- S.createPipe+ (fromProcHandle, toPtyHandle) <- S.createPipe+ -- (fromProcEHandle, toPtyEHandle) <- S.createPipe++ hSetBuffering toProcHandle NoBuffering+ hSetBuffering fromProcHandle NoBuffering+ hSetBuffering fromPtyHandle NoBuffering+ hSetBuffering toPtyHandle NoBuffering++ baseEnv <- Env.getEnvironment+ let cwd = Nothing+ runEnvs = Just $ addEnv ++ baseEnv++ hPutStrLn stderr $ "[INFO] env = " ++ show runEnvs+ hPutStrLn stderr $ "[INFO] cmd = " ++ cmd+ hPutStrLn stderr $ "[INFO] args = " ++ show args++ pHdl <- S.runProcess cmd args cwd runEnvs (Just fromPtyHandle) (Just toPtyHandle) (Just toPtyHandle)+ -- pHdl <- S.runProcess cmd args cwd runEnvs (Just fromPtyHandle) (Just toPtyHandle) (Just toPtyEHandle)+ let procData = ProcData {+ _wHdLProcData = toProcHandle+ , _rHdlProcData = fromProcHandle+ , _eHdlProcData = fromProcHandle+-- , _eHdlProcData = fromProcEHandle+ , _pHdlProcData = pHdl+ }++ STM.atomically $ STM.putTMVar procVar (Just procData)++ hPutStrLn stderr "[INFO] PMS.Infra.Agent.Process.DS.Core.procRunTask.runProc end."++-- |+-- If no data is available (timeout), return an empty ByteString instead of an error.+readProc :: ProcData -> Int -> Int -> IO BS.ByteString+readProc dat tout size = do+ let hdl = dat^.rHdlProcData+ ready <- hWaitForInput hdl tout+ if ready+ then BS.hGetSome hdl size+ else return BS.empty++---------------------------------------------------------------------------------+-- |+-- Append LF to the end of the string only if it does not already end with '\n'.+-- If the string is empty, return LF only to avoid exception from 'last'.+appendLF :: String -> String+appendLF str+ | null str = DM._LF+ | last str /= '\n' = str ++ DM._LF+ | otherwise = str++-- |+-- Encode a String to a UTF-8 encoded ByteString.+str2bsUTF8 :: String -> BS.ByteString+str2bsUTF8 = TE.encodeUtf8 . T.pack++-- |+-- Decode a ByteString to a String using UTF-8 (lenient) and strip ANSI escape sequences.+bs2strUTF8 :: BS.ByteString -> String+bs2strUTF8 = T.unpack . ANSI.stripAnsiEscapeCodes . TE.decodeUtf8With TEE.lenientDecode
+ test/PMS/Infra/Agent/Process/App/ControlSpec.hs view
@@ -0,0 +1,328 @@+{-# LANGUAGE TemplateHaskell #-}+{-# LANGUAGE OverloadedStrings #-}++module PMS.Infra.Agent.Process.App.ControlSpec (spec) where++import Test.Hspec+import Control.Concurrent+import Control.Concurrent.Async+import qualified Control.Concurrent.STM as STM+import Control.Lens+import Data.Default+import Data.Aeson (encode)+import qualified Data.ByteString.Lazy.Char8 as BL++import qualified PMS.Domain.Model.DM.Type as DM+import qualified PMS.Infra.Agent.Process.App.Control as SUT+import qualified PMS.Infra.Agent.Process.DM.Type as SUT++-- |+--+data SpecContext = SpecContext {+ _domainDataSpecContext :: DM.DomainData+ , _appDataSpecContext :: SUT.AppData+ , _threadIdSpecContext :: Maybe (Async ())+ }++makeLenses ''SpecContext++defaultSpecContext :: IO SpecContext+defaultSpecContext = do+ domDat <- DM.defaultDomainData+ appDat <- SUT.defaultAppData+ return SpecContext {+ _domainDataSpecContext = domDat+ , _appDataSpecContext = appDat+ , _threadIdSpecContext = Nothing+ }++-- |+--+spec :: Spec+spec = do+ runIO $ putStrLn "Start Spec."+ beforeAll setUpOnce $+ afterAll tearDownOnce .+ beforeWith setUp .+ after tearDown $ run++-- |+--+setUpOnce :: IO SpecContext+setUpOnce = do+ putStrLn "[INFO] EXECUTED ONLY ONCE BEFORE ALL TESTS START."+ defaultSpecContext++-- |+--+tearDownOnce :: SpecContext -> IO ()+tearDownOnce _ = do+ putStrLn "[INFO] EXECUTED ONLY ONCE AFTER ALL TESTS FINISH."++-- |+-- Each test gets a fresh domDat/appDat and a running SUT thread.+-- cmd.exe is added to the whitelist so that TC-02 / TC-04 keep working.+--+setUp :: SpecContext -> IO SpecContext+setUp ctx = do+ putStrLn "[INFO] EXECUTED BEFORE EACH TEST STARTS."+ domDat <- DM.defaultDomainData+ let domDat' = domDat { DM._allowedAgentCmdsDomainData = ["cmd.exe"] }+ appDat <- SUT.defaultAppData+ thId <- async $ SUT.runWithAppData appDat domDat'+ return ctx {+ _domainDataSpecContext = domDat'+ , _appDataSpecContext = appDat+ , _threadIdSpecContext = Just thId+ }++-- |+-- Build a SpecContext with a custom whitelist and start the SUT thread.+--+setUpWithAllowList :: SpecContext -> [String] -> IO SpecContext+setUpWithAllowList ctx allowList = do+ domDat <- DM.defaultDomainData+ let domDat' = domDat { DM._allowedAgentCmdsDomainData = allowList }+ appDat <- SUT.defaultAppData+ thId <- async $ SUT.runWithAppData appDat domDat'+ return ctx {+ _domainDataSpecContext = domDat'+ , _appDataSpecContext = appDat+ , _threadIdSpecContext = Just thId+ }++-- |+-- Cancel the SUT thread after each test.+--+tearDown :: SpecContext -> IO ()+tearDown ctx = do+ putStrLn "[INFO] EXECUTED AFTER EACH TEST FINISHES."+ case ctx^.threadIdSpecContext of+ Nothing -> return ()+ Just thId -> cancel thId++-- ---------------------------------------------------------------------------+-- Helpers+-- ---------------------------------------------------------------------------++-- |+-- Send a command to the SUT and receive one response.+--+sendAndReceive :: DM.DomainData+ -> DM.AgentProcessCommand+ -> IO DM.McpToolsCallResponseData+sendAndReceive domDat cmd = do+ let cmdQ = domDat^.DM.agentProcessQueueDomainData+ resQ = domDat^.DM.responseQueueDomainData+ STM.atomically $ STM.writeTQueue cmdQ cmd+ (DM.McpToolsCallResponse dat) <- STM.atomically $ STM.readTQueue resQ+ return dat++-- |+-- Build a minimal JsonRpcRequest for testing.+--+mkJsonRpc :: String -> DM.JsonRpcRequest+mkJsonRpc method = def { DM._methodJsonRpcRequest = method }++-- |+-- Encode ProcRunToolParams to RawJsonByteString.+--+mkRunArgs :: String -> [String] -> DM.RawJsonByteString+mkRunArgs cmd args =+ DM.RawJsonByteString $ encode $ SUT.ProcRunToolParams+ { SUT._commandProcRunToolParams = cmd+ , SUT._argumentsProcRunToolParams = Just args+ , SUT._environmentProcRunToolParams = Nothing+ }++-- |+-- Encode ProcIntToolParams (read size) to RawJsonByteString.+--+mkReadArgs :: Int -> DM.RawJsonByteString+mkReadArgs size =+ DM.RawJsonByteString $ encode $ SUT.ProcIntToolParams+ { SUT._argumentsProcIntToolParams = size }++-- |+-- Encode ProcStringToolParams (write payload) to RawJsonByteString.+--+mkWriteArgs :: String -> DM.RawJsonByteString+mkWriteArgs s =+ DM.RawJsonByteString $ encode $ SUT.ProcStringToolParams+ { SUT._argumentsProcStringToolParams = s }++-- |+-- Extract the isError flag from a response.+--+isError :: DM.McpToolsCallResponseData -> Bool+isError dat =+ dat^.DM.resultMcpToolsCallResponseData^.DM.isErrorMcpToolsCallResponseResult++-- ---------------------------------------------------------------------------+-- Test suite+-- ---------------------------------------------------------------------------++-- |+--+run :: SpecWith SpecContext+run = do++ -- TC-01: echo command smoke test+ describe "TC-01: echo command" $ do+ context "when AgentProcessEchoCommand is sent" $ do+ it "should return the same value with isError=False" $ \ctx -> do+ putStrLn "[INFO] TC-01 start."+ let domDat = ctx^.domainDataSpecContext+ expect = "hello-echo"+ echoCmd = DM.AgentProcessEchoCommand $ DM.AgentProcessEchoCommandData+ { DM._jsonrpcAgentProcessEchoCommandData = mkJsonRpc "echo"+ , DM._valueAgentProcessEchoCommandData = expect+ }+ dat <- sendAndReceive domDat echoCmd+ isError dat `shouldBe` False+ let contents = dat^.DM.resultMcpToolsCallResponseData^.DM.contentMcpToolsCallResponseResult+ actual = DM._textMcpToolsCallResponseResultContent (head contents)+ actual `shouldBe` expect++ -- TC-02: run -> read -> write -> read -> terminate smoke test+ describe "TC-02: run -> read -> write -> read -> terminate" $ do+ context "when cmd.exe is started and interacted with" $ do+ it "should succeed for each step with isError=False" $ \ctx -> do+ putStrLn "[INFO] TC-02 start."+ let domDat = ctx^.domainDataSpecContext++ -- run+ let runCmd = DM.AgentProcessRunCommand $ DM.AgentProcessRunCommandData+ { DM._jsonrpcAgentProcessRunCommandData = mkJsonRpc "agent-proc-run"+ , DM._nameAgentProcessRunCommandData = "agent-proc-run"+ , DM._argumentsAgentProcessRunCommandData = mkRunArgs "cmd.exe" []+ }+ runDat <- sendAndReceive domDat runCmd+ isError runDat `shouldBe` False++ -- read (discard the initial prompt output after cmd.exe starts)+ threadDelay (500 * 1000) -- wait 500ms for the process to start+ let readCmd = DM.AgentProcessReadCommand $ DM.AgentProcessReadCommandData+ { DM._jsonrpcAgentProcessReadCommandData = mkJsonRpc "agent-proc-read"+ , DM._argumentsAgentProcessReadCommandData = mkReadArgs 4096+ }+ readDat1 <- sendAndReceive domDat readCmd+ isError readDat1 `shouldBe` False++ -- write: send "echo hello\n"+ let writeCmd = DM.AgentProcessWriteCommand $ DM.AgentProcessWriteCommandData+ { DM._jsonrpcAgentProcessWriteCommandData = mkJsonRpc "agent-proc-write"+ , DM._argumentsAgentProcessWriteCommandData = mkWriteArgs "echo hello"+ }+ writeDat <- sendAndReceive domDat writeCmd+ isError writeDat `shouldBe` False++ -- read (read the echo output)+ threadDelay (500 * 1000) -- wait 500ms for the output to be available+ readDat2 <- sendAndReceive domDat readCmd+ isError readDat2 `shouldBe` False++ -- terminate+ let termCmd = DM.AgentProcessTerminateCommand $ DM.AgentProcessTerminateCommandData+ { DM._jsonrpcAgentProcessTerminateCommandData = mkJsonRpc "agent-proc-terminate"+ }+ termDat <- sendAndReceive domDat termCmd+ isError termDat `shouldBe` False++ -- TC-03: terminate without prior run+ describe "TC-03: terminate without prior run" $ do+ context "when terminate is sent before run" $ do+ it "should return isError=True" $ \ctx -> do+ putStrLn "[INFO] TC-03 start."+ let domDat = ctx^.domainDataSpecContext+ termCmd = DM.AgentProcessTerminateCommand $ DM.AgentProcessTerminateCommandData+ { DM._jsonrpcAgentProcessTerminateCommandData = mkJsonRpc "agent-proc-terminate"+ }+ dat <- sendAndReceive domDat termCmd+ isError dat `shouldBe` True++ -- TC-04: double run (process already running)+ describe "TC-04: double run" $ do+ context "when run is sent twice" $ do+ it "should return isError=True for the second run" $ \ctx -> do+ putStrLn "[INFO] TC-04 start."+ let domDat = ctx^.domainDataSpecContext+ runCmd = DM.AgentProcessRunCommand $ DM.AgentProcessRunCommandData+ { DM._jsonrpcAgentProcessRunCommandData = mkJsonRpc "agent-proc-run"+ , DM._nameAgentProcessRunCommandData = "agent-proc-run"+ , DM._argumentsAgentProcessRunCommandData = mkRunArgs "cmd.exe" []+ }++ -- first run: should succeed+ runDat1 <- sendAndReceive domDat runCmd+ isError runDat1 `shouldBe` False++ -- second run: should fail with error+ runDat2 <- sendAndReceive domDat runCmd+ isError runDat2 `shouldBe` True++ -- cleanup: terminate+ let termCmd = DM.AgentProcessTerminateCommand $ DM.AgentProcessTerminateCommandData+ { DM._jsonrpcAgentProcessTerminateCommandData = mkJsonRpc "agent-proc-terminate"+ }+ _ <- sendAndReceive domDat termCmd+ return ()++ -- TC-05: Whitelist - allowed command succeeds+ describe "TC-05: whitelist - allowed command" $ do+ context "when cmd.exe is in agentAllowedCmds" $ do+ it "should start the process and return isError=False" $ \ctx -> do+ putStrLn "[INFO] TC-05 start."+ ctx' <- setUpWithAllowList ctx ["cmd.exe"]+ let domDat = ctx'^.domainDataSpecContext+ runCmd = DM.AgentProcessRunCommand $ DM.AgentProcessRunCommandData+ { DM._jsonrpcAgentProcessRunCommandData = mkJsonRpc "agent-proc-run"+ , DM._nameAgentProcessRunCommandData = "agent-proc-run"+ , DM._argumentsAgentProcessRunCommandData = mkRunArgs "cmd.exe" []+ }+ runDat <- sendAndReceive domDat runCmd+ isError runDat `shouldBe` False+ -- cleanup+ let termCmd = DM.AgentProcessTerminateCommand $ DM.AgentProcessTerminateCommandData+ { DM._jsonrpcAgentProcessTerminateCommandData = mkJsonRpc "agent-proc-terminate"+ }+ _ <- sendAndReceive domDat termCmd+ tearDown ctx'++ -- TC-06: Whitelist - denied command returns error message+ describe "TC-06: whitelist - denied command" $ do+ context "when powershell.exe is NOT in agentAllowedCmds" $ do+ it "should return isError=True with 'command not allowed' message" $ \ctx -> do+ putStrLn "[INFO] TC-06 start."+ ctx' <- setUpWithAllowList ctx ["cmd.exe"]+ let domDat = ctx'^.domainDataSpecContext+ runCmd = DM.AgentProcessRunCommand $ DM.AgentProcessRunCommandData+ { DM._jsonrpcAgentProcessRunCommandData = mkJsonRpc "agent-proc-run"+ , DM._nameAgentProcessRunCommandData = "agent-proc-run"+ , DM._argumentsAgentProcessRunCommandData = mkRunArgs "powershell.exe" []+ }+ runDat <- sendAndReceive domDat runCmd+ isError runDat `shouldBe` True+ let contents = runDat^.DM.resultMcpToolsCallResponseData^.DM.contentMcpToolsCallResponseResult+ errText = DM._textMcpToolsCallResponseResultContent (head contents)+ errText `shouldBe` "cmd2task: exception occurred. skip. command not allowed: powershell.exe"+ tearDown ctx'++ -- TC-07: Whitelist - empty list denies all commands+ describe "TC-07: whitelist - empty list denies all" $ do+ context "when agentAllowedCmds is empty" $ do+ it "should return isError=True for any command" $ \ctx -> do+ putStrLn "[INFO] TC-07 start."+ ctx' <- setUpWithAllowList ctx []+ let domDat = ctx'^.domainDataSpecContext+ runCmd = DM.AgentProcessRunCommand $ DM.AgentProcessRunCommandData+ { DM._jsonrpcAgentProcessRunCommandData = mkJsonRpc "agent-proc-run"+ , DM._nameAgentProcessRunCommandData = "agent-proc-run"+ , DM._argumentsAgentProcessRunCommandData = mkRunArgs "cmd.exe" []+ }+ runDat <- sendAndReceive domDat runCmd+ isError runDat `shouldBe` True+ let contents = runDat^.DM.resultMcpToolsCallResponseData^.DM.contentMcpToolsCallResponseResult+ errText = DM._textMcpToolsCallResponseResultContent (head contents)+ errText `shouldBe` "cmd2task: exception occurred. skip. command not allowed: cmd.exe"+ tearDown ctx'
+ test/Spec.hs view
@@ -0,0 +1,1 @@+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}