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"resolved": "https://registry.npmjs.org/ts-api-utils/-/ts-api-utils-2.1.0.tgz", @@ -6129,6 +6764,44 @@ "url": "https://github.com/sponsors/sindresorhus" } }, + "node_modules/type-is": { + "version": "2.0.1", + "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz", + "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==", + "dev": true, + "license": "MIT", + "dependencies": { + "content-type": "^1.0.5", + "media-typer": "^1.1.0", + "mime-types": "^3.0.0" + }, + "engines": { + "node": ">= 0.6" + } + }, + "node_modules/type-is/node_modules/mime-db": { + "version": "1.54.0", + "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz", + "integrity": "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">= 0.6" + } + }, + "node_modules/type-is/node_modules/mime-types": { + "version": "3.0.1", + "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-3.0.1.tgz", + "integrity": "sha512-xRc4oEhT6eaBpU1XF7AjpOFD+xQmXNB5OVKwp4tqCuBpHLS/ZbBDrc07mYTDqVMg6PfxUjjNp85O6Cd2Z/5HWA==", + "dev": true, + "license": "MIT", + "dependencies": { + "mime-db": "^1.54.0" + }, + "engines": { + "node": ">= 0.6" + } + }, "node_modules/typed-rest-client": { "version": "1.8.11", "resolved": "https://registry.npmjs.org/typed-rest-client/-/typed-rest-client-1.8.11.tgz", @@ -6203,6 +6876,16 @@ "node": ">= 10.0.0" } }, + "node_modules/unpipe": { + "version": "1.0.0", + "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz", + "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">= 0.8" + } + }, "node_modules/uri-js": { "version": "4.4.1", "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz", @@ -6260,6 +6943,16 @@ "spdx-expression-parse": "^3.0.0" } }, + "node_modules/vary": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz", + "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">= 0.8" + } + }, "node_modules/version-range": { "version": "4.14.0", "resolved": "https://registry.npmjs.org/version-range/-/version-range-4.14.0.tgz", @@ -6587,6 +7280,26 @@ "funding": { "url": "https://github.com/sponsors/sindresorhus" } + }, + "node_modules/zod": { + "version": "3.25.76", + "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz", + "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==", + "dev": true, + "license": "MIT", + "funding": { + "url": "https://github.com/sponsors/colinhacks" + } + }, + "node_modules/zod-to-json-schema": { + "version": "3.24.6", + "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.6.tgz", + "integrity": "sha512-h/z3PKvcTcTetyjl1fkj79MHNEjm+HpD6NXheWjzOekY7kV+lwDYnHw+ivHkijnCSMz1yJaWBD9vu/Fcmk+vEg==", + "dev": true, + "license": "ISC", + "peerDependencies": { + "zod": "^3.24.1" + } } } } diff --git a/package.json b/package.json index 2616e03..84a3ca3 100644 --- a/package.json +++ b/package.json @@ -202,6 +202,8 @@ "@vscode/test-electron": "^2.5.2", "@vscode/vsce": "^3.5.0", "eslint": "^9.25.1", - "typescript": "^5.8.3" + "typescript": "^5.8.3", + "@modelcontextprotocol/sdk": "^1.15.0", + "zod": "^3.25.76" } } diff --git a/src/extension.ts b/src/extension.ts index 2dacc0a..1a6f042 100644 --- a/src/extension.ts +++ b/src/extension.ts @@ -94,6 +94,8 @@ class ClaudeChatProvider { private _backupRepoPath: string | undefined; private _commits: Array<{ id: string, sha: string, message: string, timestamp: string }> = []; private _conversationsPath: string | undefined; + private _permissionRequestsPath: string | undefined; + private _permissionWatcher: vscode.FileSystemWatcher | undefined; private _currentConversation: Array<{ timestamp: string, messageType: string, data: any }> = []; private _conversationStartTime: string | undefined; private _conversationIndex: Array<{ @@ -117,6 +119,8 @@ class ClaudeChatProvider { // Initialize backup repository and conversations this._initializeBackupRepo(); this._initializeConversations(); + this._initializeMCPConfig(); + this._initializePermissions(); // Load conversation index from workspace state this._conversationIndex = this._context.workspaceState.get('claude.conversationIndex', []); @@ -393,10 +397,19 @@ class ClaudeChatProvider { // Build command arguments with session management const args = [ '-p', - '--output-format', 'stream-json', '--verbose', - '--dangerously-skip-permissions' + '--output-format', 'stream-json', '--verbose' ]; + // Add MCP configuration for permissions + const mcpConfigPath = this.getMCPConfigPath(); + if (mcpConfigPath) { + args.push('--mcp-config', mcpConfigPath); + args.push('--allowedTools', 'mcp__permissions__approval_prompt'); + args.push('--permission-prompt-tool', 'mcp__permissions__approval_prompt'); + }else{ + args.push('--dangerously-skip-permissions') + } + // Add model selection if not using default if (this._selectedModel && this._selectedModel !== 'default') { args.push('--model', this._selectedModel); @@ -970,6 +983,129 @@ class ClaudeChatProvider { } } + private async _initializeMCPConfig(): Promise { + try { + const storagePath = this._context.storageUri?.fsPath; + if (!storagePath) {return;} + + // Create MCP config directory + const mcpConfigDir = path.join(storagePath, 'mcp'); + try { + await vscode.workspace.fs.stat(vscode.Uri.file(mcpConfigDir)); + } catch { + await vscode.workspace.fs.createDirectory(vscode.Uri.file(mcpConfigDir)); + console.log(`Created MCP config directory at: ${mcpConfigDir}`); + } + + // Create mcp-servers.json with correct path to compiled MCP permissions server + const mcpConfigPath = path.join(mcpConfigDir, 'mcp-servers.json'); + const mcpPermissionsPath = path.join(this._extensionUri.fsPath, 'out', 'permissions', 'mcp-permissions.js'); + const permissionRequestsPath = path.join(storagePath, 'permission-requests'); + + const mcpConfig = { + mcpServers: { + permissions: { + command: 'node', + args: [mcpPermissionsPath], + env: { + CLAUDE_PERMISSIONS_PATH: permissionRequestsPath + } + } + } + }; + + const configContent = new TextEncoder().encode(JSON.stringify(mcpConfig, null, 2)); + await vscode.workspace.fs.writeFile(vscode.Uri.file(mcpConfigPath), configContent); + + console.log(`Created MCP config at: ${mcpConfigPath}`); + } catch (error: any) { + console.error('Failed to initialize MCP config:', error.message); + } + } + + private async _initializePermissions(): Promise { + try { + const storagePath = this._context.storageUri?.fsPath; + if (!storagePath) {return;} + + // Create permission requests directory + this._permissionRequestsPath = path.join(storagePath, 'permission-requests'); + try { + await vscode.workspace.fs.stat(vscode.Uri.file(this._permissionRequestsPath)); + } catch { + await vscode.workspace.fs.createDirectory(vscode.Uri.file(this._permissionRequestsPath)); + console.log(`Created permission requests directory at: ${this._permissionRequestsPath}`); + } + + // Set up file watcher for *.request files + this._permissionWatcher = vscode.workspace.createFileSystemWatcher( + new vscode.RelativePattern(this._permissionRequestsPath, '*.request') + ); + + this._permissionWatcher.onDidCreate(async (uri) => { + // Only handle file scheme URIs, ignore vscode-userdata scheme + if (uri.scheme === 'file') { + await this._handlePermissionRequest(uri); + } + }); + + this._disposables.push(this._permissionWatcher); + + } catch (error: any) { + console.error('Failed to initialize permissions:', error.message); + } + } + + private async _handlePermissionRequest(requestUri: vscode.Uri): Promise { + try { + // Read the request file + const content = await vscode.workspace.fs.readFile(requestUri); + const request = JSON.parse(new TextDecoder().decode(content)); + + // Show permission dialog + const approved = await this._showPermissionDialog(request); + + // Write response file + const responseFile = requestUri.fsPath.replace('.request', '.response'); + const response = { + id: request.id, + approved: approved, + timestamp: new Date().toISOString() + }; + + const responseContent = new TextEncoder().encode(JSON.stringify(response)); + await vscode.workspace.fs.writeFile(vscode.Uri.file(responseFile), responseContent); + + // Clean up request file + await vscode.workspace.fs.delete(requestUri); + + } catch (error: any) { + console.error('Failed to handle permission request:', error.message); + } + } + + private async _showPermissionDialog(request: any): Promise { + const toolName = request.tool || 'Unknown Tool'; + const toolInput = JSON.stringify(request.input, null, 2); + + const message = `Tool "${toolName}" is requesting permission to execute:\n\n${toolInput}\n\nDo you want to allow this?`; + + const result = await vscode.window.showWarningMessage( + message, + { modal: true }, + 'Allow', + 'Deny' + ); + + return result === 'Allow'; + } + + public getMCPConfigPath(): string | undefined { + const storagePath = this._context.storageUri?.fsPath; + if (!storagePath) {return undefined;} + return path.join(storagePath, 'mcp', 'mcp-servers.json'); + } + private _sendAndSaveMessage(message: { type: string, data: any }): void { // Initialize conversation if this is the first message if (this._currentConversation.length === 0) { diff --git a/src/permissions/mcp-permissions.ts b/src/permissions/mcp-permissions.ts new file mode 100644 index 0000000..c90580d --- /dev/null +++ b/src/permissions/mcp-permissions.ts @@ -0,0 +1,118 @@ +import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; +import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js"; +import { z } from "zod"; +import * as fs from "fs"; +import * as path from "path"; + +const server = new McpServer({ + name: "Claude Code Permissions MCP Server", + version: "0.0.1", +}); + +// Get permissions directory from environment +const PERMISSIONS_PATH = process.env.CLAUDE_PERMISSIONS_PATH; +if (!PERMISSIONS_PATH) { + console.error("CLAUDE_PERMISSIONS_PATH environment variable not set"); + process.exit(1); +} + +function generateRequestId(): string { + return `req_${Date.now()}_${Math.random().toString(36).substring(2, 9)}`; +} + +async function requestPermission(tool_name: string, input: any): Promise { + if (!PERMISSIONS_PATH) { + console.error("Permissions path not available"); + return false; + } + + const requestId = generateRequestId(); + const requestFile = path.join(PERMISSIONS_PATH, `${requestId}.request`); + const responseFile = path.join(PERMISSIONS_PATH, `${requestId}.response`); + + // Write request file + const request = { + id: requestId, + tool: tool_name, + input: input, + timestamp: new Date().toISOString() + }; + + try { + fs.writeFileSync(requestFile, JSON.stringify(request, null, 2)); + + // Poll for response file + const maxWaitTime = 30000; // 30 seconds timeout + const pollInterval = 100; // Check every 100ms + let waitTime = 0; + + while (waitTime < maxWaitTime) { + if (fs.existsSync(responseFile)) { + const responseContent = fs.readFileSync(responseFile, 'utf8'); + const response = JSON.parse(responseContent); + + // Clean up response file + fs.unlinkSync(responseFile); + + return response.approved; + } + + await new Promise(resolve => setTimeout(resolve, pollInterval)); + waitTime += pollInterval; + } + + // Timeout - clean up request file and deny + if (fs.existsSync(requestFile)) { + fs.unlinkSync(requestFile); + } + + console.error(`Permission request ${requestId} timed out`); + return false; + + } catch (error) { + console.error(`Error requesting permission: ${error}`); + return false; + } +} + +server.tool( + "approval_prompt", + 'Request user permission to execute a tool via VS Code dialog', + { + tool_name: z.string().describe("The name of the tool requesting permission"), + input: z.object({}).passthrough().describe("The input for the tool"), + tool_use_id: z.string().optional().describe("The unique tool use request ID"), + }, + async ({ tool_name, input }) => { + console.error(`Requesting permission for tool: ${tool_name}`); + + const approved = await requestPermission(tool_name, input); + + const behavior = approved ? "allow" : "deny"; + console.error(`Permission ${behavior}ed for tool: ${tool_name}`); + + return { + content: [ + { + type: "text", + text: JSON.stringify({ + behavior: behavior, + updatedInput: input, + }), + }, + ], + }; + } +); + +async function main() { + const transport = new StdioServerTransport(); + await server.connect(transport); + console.error(`Permissions MCP Server running on stdio`); + console.error(`Using permissions directory: ${PERMISSIONS_PATH}`); +} + +main().catch((error) => { + console.error("Fatal error in main():", error); + process.exit(1); +}); \ No newline at end of file diff --git a/src/permissions/mcp-servers.json b/src/permissions/mcp-servers.json new file mode 100644 index 0000000..ac4a40d --- /dev/null +++ b/src/permissions/mcp-servers.json @@ -0,0 +1,10 @@ +{ + "mcpServers": { + "permissions": { + "command": "node", + "args": [ + "./out/permissions/mcp-permissions.js" + ] + } + } +} \ No newline at end of file