wehub-resource-sync
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92 lines
2.6 KiB
Python
92 lines
2.6 KiB
Python
from urllib.parse import urlparse
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import anyio
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import click
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import mcp_types as types
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from mcp.server import Server, ServerRequestContext
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SAMPLE_RESOURCES = {
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"greeting": {
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"content": "Hello! This is a sample text resource.",
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"title": "Welcome Message",
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},
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"help": {
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"content": "This server provides a few sample text resources for testing.",
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"title": "Help Documentation",
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},
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"about": {
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"content": "This is the simple-resource MCP server implementation.",
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"title": "About This Server",
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},
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}
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async def handle_list_resources(
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ctx: ServerRequestContext, params: types.PaginatedRequestParams | None
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) -> types.ListResourcesResult:
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return types.ListResourcesResult(
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resources=[
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types.Resource(
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uri=f"file:///{name}.txt",
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name=name,
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title=SAMPLE_RESOURCES[name]["title"],
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description=f"A sample text resource named {name}",
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mime_type="text/plain",
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)
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for name in SAMPLE_RESOURCES.keys()
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]
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)
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async def handle_read_resource(
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ctx: ServerRequestContext, params: types.ReadResourceRequestParams
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) -> types.ReadResourceResult:
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parsed = urlparse(str(params.uri))
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if not parsed.path:
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raise ValueError(f"Invalid resource path: {params.uri}")
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name = parsed.path.replace(".txt", "").lstrip("/")
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if name not in SAMPLE_RESOURCES:
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raise ValueError(f"Unknown resource: {params.uri}")
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return types.ReadResourceResult(
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contents=[
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types.TextResourceContents(
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uri=str(params.uri),
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text=SAMPLE_RESOURCES[name]["content"],
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mime_type="text/plain",
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)
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]
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)
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@click.command()
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@click.option("--port", default=8000, help="Port to listen on for HTTP")
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@click.option(
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"--transport",
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type=click.Choice(["stdio", "streamable-http"]),
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default="stdio",
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help="Transport type",
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)
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def main(port: int, transport: str) -> int:
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app = Server(
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"mcp-simple-resource",
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on_list_resources=handle_list_resources,
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on_read_resource=handle_read_resource,
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)
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if transport == "streamable-http":
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import uvicorn
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uvicorn.run(app.streamable_http_app(), host="127.0.0.1", port=port)
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else:
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from mcp.server.stdio import stdio_server
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async def arun():
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async with stdio_server() as streams:
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await app.run(streams[0], streams[1], app.create_initialization_options())
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anyio.run(arun)
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return 0
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