42 lines
1.3 KiB
TypeScript
42 lines
1.3 KiB
TypeScript
/**
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* Server-side default MCP servers when no x-mcp-servers header is present.
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* Unset = no defaults. Set DEFAULT_MCP_SERVERS (JSON array) to pre-fill.
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*/
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export type McpServerConfig = {
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type: "http" | "sse";
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url: string;
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serverId?: string;
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};
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/** Built-in default: Excalidraw MCP server (public, no auth). Override with DEFAULT_MCP_SERVERS env. */
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const BUILTIN_DEFAULTS: McpServerConfig[] = [
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{ type: "http", url: "https://mcp.excalidraw.com", serverId: "excalidraw" },
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];
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function parseDefaultMcpServers(): McpServerConfig[] {
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const raw = process.env.DEFAULT_MCP_SERVERS;
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if (raw == null || raw === "") return BUILTIN_DEFAULTS;
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try {
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const parsed = JSON.parse(raw) as McpServerConfig[];
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if (!Array.isArray(parsed)) return BUILTIN_DEFAULTS;
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const filtered = parsed.filter(
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(s): s is McpServerConfig =>
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s != null &&
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typeof s.url === "string" &&
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(s.type === "http" || s.type === "sse"),
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);
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return filtered.length > 0 ? filtered : BUILTIN_DEFAULTS;
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} catch {
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return BUILTIN_DEFAULTS;
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}
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}
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let cached: McpServerConfig[] | null = null;
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/** Default MCP server configs for API routes when header is absent. */
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export function getDefaultMcpServers(): McpServerConfig[] {
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if (cached === null) cached = parseDefaultMcpServers();
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return cached;
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}
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