93 lines
2.9 KiB
TypeScript
93 lines
2.9 KiB
TypeScript
/**
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* Copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import type { Server } from '@modelcontextprotocol/sdk/server/index.js';
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import type { Transport, TransportSendOptions } from '@modelcontextprotocol/sdk/shared/transport.js';
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import type { JSONRPCMessage, MessageExtraInfo } from '@modelcontextprotocol/sdk/types.js';
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export class InProcessTransport implements Transport {
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private _server: Server;
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private _serverTransport: InProcessServerTransport;
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private _connected: boolean = false;
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constructor(server: Server) {
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this._server = server;
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this._serverTransport = new InProcessServerTransport(this);
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}
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async start(): Promise<void> {
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if (this._connected)
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throw new Error('InprocessTransport already started!');
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await this._server.connect(this._serverTransport);
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this._connected = true;
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}
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async send(message: JSONRPCMessage, options?: TransportSendOptions): Promise<void> {
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if (!this._connected)
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throw new Error('Transport not connected');
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this._serverTransport._receiveFromClient(message);
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}
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async close(): Promise<void> {
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if (this._connected) {
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this._connected = false;
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this.onclose?.();
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this._serverTransport.onclose?.();
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}
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}
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onclose?: (() => void) | undefined;
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onerror?: ((error: Error) => void) | undefined;
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onmessage?: ((message: JSONRPCMessage, extra?: MessageExtraInfo) => void) | undefined;
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sessionId?: string | undefined;
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setProtocolVersion?: ((version: string) => void) | undefined;
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_receiveFromServer(message: JSONRPCMessage, extra?: MessageExtraInfo): void {
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this.onmessage?.(message, extra);
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}
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}
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class InProcessServerTransport implements Transport {
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private _clientTransport: InProcessTransport;
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constructor(clientTransport: InProcessTransport) {
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this._clientTransport = clientTransport;
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}
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async start(): Promise<void> {
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}
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async send(message: JSONRPCMessage, options?: TransportSendOptions): Promise<void> {
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this._clientTransport._receiveFromServer(message);
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}
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async close(): Promise<void> {
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this.onclose?.();
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}
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onclose?: (() => void) | undefined;
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onerror?: ((error: Error) => void) | undefined;
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onmessage?: ((message: JSONRPCMessage, extra?: MessageExtraInfo) => void) | undefined;
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sessionId?: string | undefined;
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setProtocolVersion?: ((version: string) => void) | undefined;
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_receiveFromClient(message: JSONRPCMessage): void {
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this.onmessage?.(message);
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}
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}
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