Adding goBack button

.vscode/mcp.json

@@ -8,6 +8,21 @@
 				"start-stdio"
 			],
 			"cwd": "${workspaceFolder}/test/mcp"
+		},
+		"everything-server": {
+			"type": "stdio",
+			"command": "node",
+			"args": [
+				"C:\\Users\\dileepy\\servers\\src\\everything\\dist\\index.js"
+			],
+			"env": {}
+		},
+		"my-mcp-server-612a332c": {
+			"type": "stdio",
+			"command": "node",
+			"args": [
+				"C:\\\\Users\\\\dileepy\\\\servers\\\\src\\\\everything\\\\dist\\\\index.js"
+			]
 		}
 	},
 	"inputs": []

src/vs/workbench/contrib/mcp/common/mcpResourceFilesystem.ts

@@ -17,10 +17,12 @@ import { equalsIgnoreCase } from '../../../../base/common/strings.js';
 import { URI } from '../../../../base/common/uri.js';
 import { createFileSystemProviderError, FileChangeType, FileSystemProviderCapabilities, FileSystemProviderErrorCode, FileType, IFileChange, IFileDeleteOptions, IFileOverwriteOptions, IFileReadStreamOptions, IFileService, IFileSystemProviderWithFileAtomicReadCapability, IFileSystemProviderWithFileReadStreamCapability, IFileSystemProviderWithFileReadWriteCapability, IFileWriteOptions, IStat, IWatchOptions } from '../../../../platform/files/common/files.js';
 import { IInstantiationService } from '../../../../platform/instantiation/common/instantiation.js';
+import { NativeWebContentExtractorService } from '../../../../platform/webContentExtractor/electron-main/webContentExtractorService.js';
 import { IWorkbenchContribution } from '../../../common/contributions.js';
 import { McpServer } from './mcpServer.js';
 import { McpServerRequestHandler } from './mcpServerRequestHandler.js';
-import { IMcpService, McpCapability, McpResourceURI } from './mcpTypes.js';
+import { IMcpService, McpCapability, McpResourceURI, McpServerLaunch } from './mcpTypes.js';
+import { downloadResourceContentForWebHostedResources } from './mcpTypesUtils.js';
 import { MCP } from './modelContextProtocol.js';
 
 const MOMENTARY_CACHE_DURATION = 3000;
@@ -282,13 +284,57 @@ export class McpResourceFilesystem extends Disposable implements IWorkbenchContr
 
 	private async _readURIInner(uri: URI, token?: CancellationToken): Promise<IReadData> {
 		const { resourceURI, server } = this._decodeURI(uri);
+
+		const webContent = await downloadResourceContentForWebHostedResources(resourceURI.toString(), server.connection.get()?.launchDefinition);
+
+
+		//check if the uri is valid
+
 		const res = await McpServer.callOn(server, r => r.readResource({ uri: resourceURI.toString() }, token), token);
+
+
+
+		if (res && res.contents?.length > 0) {
+			res = res.contents.map(content => {
+				if (content.mimeType === 'text/html') {
+					//extract the text part only.
+
+				}
+				return content;
+			})
+		}
+
 		return {
 			contents: res.contents,
 			resourceURI,
 			forSameURI: res.contents.filter(c => equalsUrlPath(c.uri, resourceURI))
 		};
 	}
+
+	private async downloadResourceContentForWebHostedResources(uriString: string, launch?: McpServerLaunch): Promise<string> {
+
+		const uri = URI.parse(uriString);
+
+		const extractHelper = this._instantiationService.createInstance(NativeWebContentExtractorService);
+
+		if (uri.scheme === 'http' || (uri.scheme === 'https')) {
+
+			// if (!!launch) {
+			// 	if (launch?.type !== McpServerTransportType.HTTP) {
+			// 		return false;
+			// 	}
+			// 	const expectedAuthority = launch.uri.authority.toLowerCase();
+			// 	if (uri.authority.toLowerCase() !== expectedAuthority) {
+			// 		return false;
+			// 	}
+			// }
+
+			const content = await extractHelper.extract([uri]);
+			return content ? content[0] : '';
+		}
+		return '';
+	}
+
 }
 
 function equalsUrlPath(a: string, b: URL): boolean {

src/vs/workbench/contrib/mcp/common/mcpTypesUtils.ts

@@ -8,8 +8,9 @@ import { CancellationToken } from '../../../../base/common/cancellation.js';
 import { CancellationError } from '../../../../base/common/errors.js';
 import { DisposableStore } from '../../../../base/common/lifecycle.js';
 import { autorun } from '../../../../base/common/observable.js';
+import { URI } from '../../../../base/common/uri.js';
 import { ToolDataSource } from '../../chat/common/languageModelToolsService.js';
-import { IMcpServer, IMcpServerStartOpts, IMcpService, McpConnectionState, McpServerCacheState } from './mcpTypes.js';
+import { IMcpServer, IMcpServerStartOpts, IMcpService, McpConnectionState, McpServerCacheState, McpServerLaunch, McpServerTransportType } from './mcpTypes.js';
 
 /**
  * Waits up to `timeout` for a server passing the filter to be discovered,
@@ -91,3 +92,47 @@ export function mcpServerToSourceData(server: IMcpServer): ToolDataSource {
 		definitionId: server.definition.id
 	};
 }
+
+/**
+ * Validates a URI string against the MCP server's launch configuration.
+ * Returns the validated URI if it passes security checks, or undefined with a debug message if it fails.
+ *
+ * Security rules:
+ * - data: URIs are always allowed
+ * - http/https: Only allowed for HTTP transport servers, and only if authority matches the launch URI
+ * - file: URIs are only allowed for stdio (local process) servers
+ * - All other schemes are rejected
+ */
+export function validateMcpUri(uriString: string, launch?: McpServerLaunch): boolean {
+	const uri = URI.parse(uriString);
+
+	if (uri.scheme === 'data') {
+		return true;
+	}
+
+	if (uri.scheme === 'http' || (uri.scheme === 'https')) {
+
+		// if (!!launch) {
+		// 	if (launch?.type !== McpServerTransportType.HTTP) {
+		// 		return false;
+		// 	}
+		// 	const expectedAuthority = launch.uri.authority.toLowerCase();
+		// 	if (uri.authority.toLowerCase() !== expectedAuthority) {
+		// 		return false;
+		// 	}
+		// }
+
+		return true;
+	}
+
+	if (uri.scheme === 'file') {
+		if (launch?.type !== McpServerTransportType.Stdio) {
+			return false;
+		}
+
+		return true;
+	}
+
+	return false;
+}
+