init claude-code

2026-04-01 17:32:37 +02:00
commit 73b208c009
1902 changed files with 513237 additions and 0 deletions
@@ -0,0 +1,650 @@
+import {
+  type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+  logEvent,
+} from 'src/services/analytics/index.js'
+import { sanitizeToolNameForAnalytics } from 'src/services/analytics/metadata.js'
+import type z from 'zod/v4'
+import type { CanUseToolFn } from '../../hooks/useCanUseTool.js'
+import type { AnyObject, Tool, ToolUseContext } from '../../Tool.js'
+import type { HookProgress } from '../../types/hooks.js'
+import type {
+  AssistantMessage,
+  AttachmentMessage,
+  ProgressMessage,
+} from '../../types/message.js'
+import type { PermissionDecision } from '../../types/permissions.js'
+import { createAttachmentMessage } from '../../utils/attachments.js'
+import { logForDebugging } from '../../utils/debug.js'
+import {
+  executePostToolHooks,
+  executePostToolUseFailureHooks,
+  executePreToolHooks,
+  getPreToolHookBlockingMessage,
+} from '../../utils/hooks.js'
+import { logError } from '../../utils/log.js'
+import {
+  getRuleBehaviorDescription,
+  type PermissionDecisionReason,
+  type PermissionResult,
+} from '../../utils/permissions/PermissionResult.js'
+import { checkRuleBasedPermissions } from '../../utils/permissions/permissions.js'
+import { formatError } from '../../utils/toolErrors.js'
+import { isMcpTool } from '../mcp/utils.js'
+import type { McpServerType, MessageUpdateLazy } from './toolExecution.js'
+
+export type PostToolUseHooksResult<Output> =
+  | MessageUpdateLazy<AttachmentMessage | ProgressMessage<HookProgress>>
+  | { updatedMCPToolOutput: Output }
+
+export async function* runPostToolUseHooks<Input extends AnyObject, Output>(
+  toolUseContext: ToolUseContext,
+  tool: Tool<Input, Output>,
+  toolUseID: string,
+  messageId: string,
+  toolInput: Record<string, unknown>,
+  toolResponse: Output,
+  requestId: string | undefined,
+  mcpServerType: McpServerType,
+  mcpServerBaseUrl: string | undefined,
+): AsyncGenerator<PostToolUseHooksResult<Output>> {
+  const postToolStartTime = Date.now()
+  try {
+    const appState = toolUseContext.getAppState()
+    const permissionMode = appState.toolPermissionContext.mode
+
+    let toolOutput = toolResponse
+    for await (const result of executePostToolHooks(
+      tool.name,
+      toolUseID,
+      toolInput,
+      toolOutput,
+      toolUseContext,
+      permissionMode,
+      toolUseContext.abortController.signal,
+    )) {
+      try {
+        // Check if we were aborted during hook execution
+        // IMPORTANT: We emit a cancelled event per hook
+        if (
+          result.message?.type === 'attachment' &&
+          result.message.attachment.type === 'hook_cancelled'
+        ) {
+          logEvent('tengu_post_tool_hooks_cancelled', {
+            toolName: sanitizeToolNameForAnalytics(tool.name),
+
+            queryChainId: toolUseContext.queryTracking
+              ?.chainId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+            queryDepth: toolUseContext.queryTracking?.depth,
+          })
+          yield {
+            message: createAttachmentMessage({
+              type: 'hook_cancelled',
+              hookName: `PostToolUse:${tool.name}`,
+              toolUseID,
+              hookEvent: 'PostToolUse',
+            }),
+          }
+          continue
+        }
+
+        // For JSON {decision:"block"} hooks, executeHooks yields two results:
+        // {blockingError} and {message: hook_blocking_error attachment}. The
+        // blockingError path below creates that same attachment, so skip it
+        // here to avoid displaying the block reason twice (#31301). The
+        // exit-code-2 path only yields {blockingError}, so it's unaffected.
+        if (
+          result.message &&
+          !(
+            result.message.type === 'attachment' &&
+            result.message.attachment.type === 'hook_blocking_error'
+          )
+        ) {
+          yield { message: result.message }
+        }
+
+        if (result.blockingError) {
+          yield {
+            message: createAttachmentMessage({
+              type: 'hook_blocking_error',
+              hookName: `PostToolUse:${tool.name}`,
+              toolUseID: toolUseID,
+              hookEvent: 'PostToolUse',
+              blockingError: result.blockingError,
+            }),
+          }
+        }
+
+        // If hook indicated to prevent continuation, yield a stop reason message
+        if (result.preventContinuation) {
+          yield {
+            message: createAttachmentMessage({
+              type: 'hook_stopped_continuation',
+              message:
+                result.stopReason || 'Execution stopped by PostToolUse hook',
+              hookName: `PostToolUse:${tool.name}`,
+              toolUseID: toolUseID,
+              hookEvent: 'PostToolUse',
+            }),
+          }
+          return
+        }
+
+        // If hooks provided additional context, add it as a message
+        if (result.additionalContexts && result.additionalContexts.length > 0) {
+          yield {
+            message: createAttachmentMessage({
+              type: 'hook_additional_context',
+              content: result.additionalContexts,
+              hookName: `PostToolUse:${tool.name}`,
+              toolUseID: toolUseID,
+              hookEvent: 'PostToolUse',
+            }),
+          }
+        }
+
+        // If hooks provided updatedMCPToolOutput, yield it if this is an MCP tool
+        if (result.updatedMCPToolOutput && isMcpTool(tool)) {
+          toolOutput = result.updatedMCPToolOutput as Output
+          yield {
+            updatedMCPToolOutput: toolOutput,
+          }
+        }
+      } catch (error) {
+        const postToolDurationMs = Date.now() - postToolStartTime
+        logEvent('tengu_post_tool_hook_error', {
+          messageID:
+            messageId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+          toolName: sanitizeToolNameForAnalytics(tool.name),
+          isMcp: tool.isMcp ?? false,
+          duration: postToolDurationMs,
+
+          queryChainId: toolUseContext.queryTracking
+            ?.chainId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+          queryDepth: toolUseContext.queryTracking?.depth,
+          ...(mcpServerType
+            ? {
+                mcpServerType:
+                  mcpServerType as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+              }
+            : {}),
+          ...(requestId
+            ? {
+                requestId:
+                  requestId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+              }
+            : {}),
+        })
+        yield {
+          message: createAttachmentMessage({
+            type: 'hook_error_during_execution',
+            content: formatError(error),
+            hookName: `PostToolUse:${tool.name}`,
+            toolUseID: toolUseID,
+            hookEvent: 'PostToolUse',
+          }),
+        }
+      }
+    }
+  } catch (error) {
+    logError(error)
+  }
+}
+
+export async function* runPostToolUseFailureHooks<Input extends AnyObject>(
+  toolUseContext: ToolUseContext,
+  tool: Tool<Input, unknown>,
+  toolUseID: string,
+  messageId: string,
+  processedInput: z.infer<Input>,
+  error: string,
+  isInterrupt: boolean | undefined,
+  requestId: string | undefined,
+  mcpServerType: McpServerType,
+  mcpServerBaseUrl: string | undefined,
+): AsyncGenerator<
+  MessageUpdateLazy<AttachmentMessage | ProgressMessage<HookProgress>>
+> {
+  const postToolStartTime = Date.now()
+  try {
+    const appState = toolUseContext.getAppState()
+    const permissionMode = appState.toolPermissionContext.mode
+
+    for await (const result of executePostToolUseFailureHooks(
+      tool.name,
+      toolUseID,
+      processedInput,
+      error,
+      toolUseContext,
+      isInterrupt,
+      permissionMode,
+      toolUseContext.abortController.signal,
+    )) {
+      try {
+        // Check if we were aborted during hook execution
+        if (
+          result.message?.type === 'attachment' &&
+          result.message.attachment.type === 'hook_cancelled'
+        ) {
+          logEvent('tengu_post_tool_failure_hooks_cancelled', {
+            toolName: sanitizeToolNameForAnalytics(tool.name),
+            queryChainId: toolUseContext.queryTracking
+              ?.chainId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+            queryDepth: toolUseContext.queryTracking?.depth,
+          })
+          yield {
+            message: createAttachmentMessage({
+              type: 'hook_cancelled',
+              hookName: `PostToolUseFailure:${tool.name}`,
+              toolUseID,
+              hookEvent: 'PostToolUseFailure',
+            }),
+          }
+          continue
+        }
+
+        // Skip hook_blocking_error in result.message — blockingError path
+        // below creates the same attachment (see #31301 / PostToolUse above).
+        if (
+          result.message &&
+          !(
+            result.message.type === 'attachment' &&
+            result.message.attachment.type === 'hook_blocking_error'
+          )
+        ) {
+          yield { message: result.message }
+        }
+
+        if (result.blockingError) {
+          yield {
+            message: createAttachmentMessage({
+              type: 'hook_blocking_error',
+              hookName: `PostToolUseFailure:${tool.name}`,
+              toolUseID: toolUseID,
+              hookEvent: 'PostToolUseFailure',
+              blockingError: result.blockingError,
+            }),
+          }
+        }
+
+        // If hooks provided additional context, add it as a message
+        if (result.additionalContexts && result.additionalContexts.length > 0) {
+          yield {
+            message: createAttachmentMessage({
+              type: 'hook_additional_context',
+              content: result.additionalContexts,
+              hookName: `PostToolUseFailure:${tool.name}`,
+              toolUseID: toolUseID,
+              hookEvent: 'PostToolUseFailure',
+            }),
+          }
+        }
+      } catch (hookError) {
+        const postToolDurationMs = Date.now() - postToolStartTime
+        logEvent('tengu_post_tool_failure_hook_error', {
+          messageID:
+            messageId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+          toolName: sanitizeToolNameForAnalytics(tool.name),
+          isMcp: tool.isMcp ?? false,
+          duration: postToolDurationMs,
+          queryChainId: toolUseContext.queryTracking
+            ?.chainId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+          queryDepth: toolUseContext.queryTracking?.depth,
+          ...(mcpServerType
+            ? {
+                mcpServerType:
+                  mcpServerType as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+              }
+            : {}),
+          ...(requestId
+            ? {
+                requestId:
+                  requestId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+              }
+            : {}),
+        })
+        yield {
+          message: createAttachmentMessage({
+            type: 'hook_error_during_execution',
+            content: formatError(hookError),
+            hookName: `PostToolUseFailure:${tool.name}`,
+            toolUseID: toolUseID,
+            hookEvent: 'PostToolUseFailure',
+          }),
+        }
+      }
+    }
+  } catch (outerError) {
+    logError(outerError)
+  }
+}
+
+/**
+ * Resolve a PreToolUse hook's permission result into a final PermissionDecision.
+ *
+ * Encapsulates the invariant that hook 'allow' does NOT bypass settings.json
+ * deny/ask rules — checkRuleBasedPermissions still applies (inc-4788 analog).
+ * Also handles the requiresUserInteraction/requireCanUseTool guards and the
+ * 'ask' forceDecision passthrough.
+ *
+ * Shared by toolExecution.ts (main query loop) and REPLTool/toolWrappers.ts
+ * (REPL inner calls) so the permission semantics stay in lockstep.
+ */
+export async function resolveHookPermissionDecision(
+  hookPermissionResult: PermissionResult | undefined,
+  tool: Tool,
+  input: Record<string, unknown>,
+  toolUseContext: ToolUseContext,
+  canUseTool: CanUseToolFn,
+  assistantMessage: AssistantMessage,
+  toolUseID: string,
+): Promise<{
+  decision: PermissionDecision
+  input: Record<string, unknown>
+}> {
+  const requiresInteraction = tool.requiresUserInteraction?.()
+  const requireCanUseTool = toolUseContext.requireCanUseTool
+
+  if (hookPermissionResult?.behavior === 'allow') {
+    const hookInput = hookPermissionResult.updatedInput ?? input
+
+    // Hook provided updatedInput for an interactive tool — the hook IS the
+    // user interaction (e.g. headless wrapper that collected AskUserQuestion
+    // answers). Treat as non-interactive for the rule-check path.
+    const interactionSatisfied =
+      requiresInteraction && hookPermissionResult.updatedInput !== undefined
+
+    if ((requiresInteraction && !interactionSatisfied) || requireCanUseTool) {
+      logForDebugging(
+        `Hook approved tool use for ${tool.name}, but canUseTool is required`,
+      )
+      return {
+        decision: await canUseTool(
+          tool,
+          hookInput,
+          toolUseContext,
+          assistantMessage,
+          toolUseID,
+        ),
+        input: hookInput,
+      }
+    }
+
+    // Hook allow skips the interactive prompt, but deny/ask rules still apply.
+    const ruleCheck = await checkRuleBasedPermissions(
+      tool,
+      hookInput,
+      toolUseContext,
+    )
+    if (ruleCheck === null) {
+      logForDebugging(
+        interactionSatisfied
+          ? `Hook satisfied user interaction for ${tool.name} via updatedInput`
+          : `Hook approved tool use for ${tool.name}, bypassing permission prompt`,
+      )
+      return { decision: hookPermissionResult, input: hookInput }
+    }
+    if (ruleCheck.behavior === 'deny') {
+      logForDebugging(
+        `Hook approved tool use for ${tool.name}, but deny rule overrides: ${ruleCheck.message}`,
+      )
+      return { decision: ruleCheck, input: hookInput }
+    }
+    // ask rule — dialog required despite hook approval
+    logForDebugging(
+      `Hook approved tool use for ${tool.name}, but ask rule requires prompt`,
+    )
+    return {
+      decision: await canUseTool(
+        tool,
+        hookInput,
+        toolUseContext,
+        assistantMessage,
+        toolUseID,
+      ),
+      input: hookInput,
+    }
+  }
+
+  if (hookPermissionResult?.behavior === 'deny') {
+    logForDebugging(`Hook denied tool use for ${tool.name}`)
+    return { decision: hookPermissionResult, input }
+  }
+
+  // No hook decision or 'ask' — normal permission flow, possibly with
+  // forceDecision so the dialog shows the hook's ask message.
+  const forceDecision =
+    hookPermissionResult?.behavior === 'ask' ? hookPermissionResult : undefined
+  const askInput =
+    hookPermissionResult?.behavior === 'ask' &&
+    hookPermissionResult.updatedInput
+      ? hookPermissionResult.updatedInput
+      : input
+  return {
+    decision: await canUseTool(
+      tool,
+      askInput,
+      toolUseContext,
+      assistantMessage,
+      toolUseID,
+      forceDecision,
+    ),
+    input: askInput,
+  }
+}
+
+export async function* runPreToolUseHooks(
+  toolUseContext: ToolUseContext,
+  tool: Tool,
+  processedInput: Record<string, unknown>,
+  toolUseID: string,
+  messageId: string,
+  requestId: string | undefined,
+  mcpServerType: McpServerType,
+  mcpServerBaseUrl: string | undefined,
+): AsyncGenerator<
+  | {
+      type: 'message'
+      message: MessageUpdateLazy<
+        AttachmentMessage | ProgressMessage<HookProgress>
+      >
+    }
+  | { type: 'hookPermissionResult'; hookPermissionResult: PermissionResult }
+  | { type: 'hookUpdatedInput'; updatedInput: Record<string, unknown> }
+  | { type: 'preventContinuation'; shouldPreventContinuation: boolean }
+  | { type: 'stopReason'; stopReason: string }
+  | {
+      type: 'additionalContext'
+      message: MessageUpdateLazy<AttachmentMessage>
+    }
+  // stop execution
+  | { type: 'stop' }
+> {
+  const hookStartTime = Date.now()
+  try {
+    const appState = toolUseContext.getAppState()
+
+    for await (const result of executePreToolHooks(
+      tool.name,
+      toolUseID,
+      processedInput,
+      toolUseContext,
+      appState.toolPermissionContext.mode,
+      toolUseContext.abortController.signal,
+      undefined, // timeoutMs - use default
+      toolUseContext.requestPrompt,
+      tool.getToolUseSummary?.(processedInput),
+    )) {
+      try {
+        if (result.message) {
+          yield { type: 'message', message: { message: result.message } }
+        }
+        if (result.blockingError) {
+          const denialMessage = getPreToolHookBlockingMessage(
+            `PreToolUse:${tool.name}`,
+            result.blockingError,
+          )
+          yield {
+            type: 'hookPermissionResult',
+            hookPermissionResult: {
+              behavior: 'deny',
+              message: denialMessage,
+              decisionReason: {
+                type: 'hook',
+                hookName: `PreToolUse:${tool.name}`,
+                reason: denialMessage,
+              },
+            },
+          }
+        }
+        // Check if hook wants to prevent continuation
+        if (result.preventContinuation) {
+          yield {
+            type: 'preventContinuation',
+            shouldPreventContinuation: true,
+          }
+          if (result.stopReason) {
+            yield { type: 'stopReason', stopReason: result.stopReason }
+          }
+        }
+        // Check for hook-defined permission behavior
+        if (result.permissionBehavior !== undefined) {
+          logForDebugging(
+            `Hook result has permissionBehavior=${result.permissionBehavior}`,
+          )
+          const decisionReason: PermissionDecisionReason = {
+            type: 'hook',
+            hookName: `PreToolUse:${tool.name}`,
+            hookSource: result.hookSource,
+            reason: result.hookPermissionDecisionReason,
+          }
+          if (result.permissionBehavior === 'allow') {
+            yield {
+              type: 'hookPermissionResult',
+              hookPermissionResult: {
+                behavior: 'allow',
+                updatedInput: result.updatedInput,
+                decisionReason,
+              },
+            }
+          } else if (result.permissionBehavior === 'ask') {
+            yield {
+              type: 'hookPermissionResult',
+              hookPermissionResult: {
+                behavior: 'ask',
+                updatedInput: result.updatedInput,
+                message:
+                  result.hookPermissionDecisionReason ||
+                  `Hook PreToolUse:${tool.name} ${getRuleBehaviorDescription(result.permissionBehavior)} this tool`,
+                decisionReason,
+              },
+            }
+          } else {
+            // deny - updatedInput is irrelevant since tool won't run
+            yield {
+              type: 'hookPermissionResult',
+              hookPermissionResult: {
+                behavior: result.permissionBehavior,
+                message:
+                  result.hookPermissionDecisionReason ||
+                  `Hook PreToolUse:${tool.name} ${getRuleBehaviorDescription(result.permissionBehavior)} this tool`,
+                decisionReason,
+              },
+            }
+          }
+        }
+
+        // Yield updatedInput for passthrough case (no permission decision)
+        // This allows hooks to modify input while letting normal permission flow continue
+        if (result.updatedInput && result.permissionBehavior === undefined) {
+          yield {
+            type: 'hookUpdatedInput',
+            updatedInput: result.updatedInput,
+          }
+        }
+
+        // If hooks provided additional context, add it as a message
+        if (result.additionalContexts && result.additionalContexts.length > 0) {
+          yield {
+            type: 'additionalContext',
+            message: {
+              message: createAttachmentMessage({
+                type: 'hook_additional_context',
+                content: result.additionalContexts,
+                hookName: `PreToolUse:${tool.name}`,
+                toolUseID,
+                hookEvent: 'PreToolUse',
+              }),
+            },
+          }
+        }
+
+        // Check if we were aborted during hook execution
+        if (toolUseContext.abortController.signal.aborted) {
+          logEvent('tengu_pre_tool_hooks_cancelled', {
+            toolName: sanitizeToolNameForAnalytics(tool.name),
+
+            queryChainId: toolUseContext.queryTracking
+              ?.chainId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+            queryDepth: toolUseContext.queryTracking?.depth,
+          })
+          yield {
+            type: 'message',
+            message: {
+              message: createAttachmentMessage({
+                type: 'hook_cancelled',
+                hookName: `PreToolUse:${tool.name}`,
+                toolUseID,
+                hookEvent: 'PreToolUse',
+              }),
+            },
+          }
+          yield { type: 'stop' }
+          return
+        }
+      } catch (error) {
+        logError(error)
+        const durationMs = Date.now() - hookStartTime
+        logEvent('tengu_pre_tool_hook_error', {
+          messageID:
+            messageId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+          toolName: sanitizeToolNameForAnalytics(tool.name),
+          isMcp: tool.isMcp ?? false,
+          duration: durationMs,
+
+          queryChainId: toolUseContext.queryTracking
+            ?.chainId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+          queryDepth: toolUseContext.queryTracking?.depth,
+          ...(mcpServerType
+            ? {
+                mcpServerType:
+                  mcpServerType as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+              }
+            : {}),
+          ...(requestId
+            ? {
+                requestId:
+                  requestId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+              }
+            : {}),
+        })
+        yield {
+          type: 'message',
+          message: {
+            message: createAttachmentMessage({
+              type: 'hook_error_during_execution',
+              content: formatError(error),
+              hookName: `PreToolUse:${tool.name}`,
+              toolUseID: toolUseID,
+              hookEvent: 'PreToolUse',
+            }),
+          },
+        }
+        yield { type: 'stop' }
+      }
+    }
+  } catch (error) {
+    logError(error)
+    yield { type: 'stop' }
+    return
+  }
+}