feat: clash/ss suport

server/src/parsers/toClash.ts

@@ -0,0 +1,79 @@
+/**
+ * Convert proxy URIs (ss://, vmess://, trojan://) to Clash YAML flow-style proxy lines.
+ * Returns a string like `  - {name: "NodeName", type: ss, server: ..., port: ..., ...}`
+ * or null if the URI is unsupported/invalid.
+ */
+export function uriToClashLine(uri: string): string | null {
+  try {
+    if (uri.startsWith('ss://')) return ssToClash(uri);
+    if (uri.startsWith('vmess://')) return vmessToClash(uri);
+    if (uri.startsWith('trojan://')) return trojanToClash(uri);
+    return null;
+  } catch {
+    return null;
+  }
+}
+
+/** Escape a string value for use inside double-quoted YAML flow style */
+function esc(s: string): string {
+  return s.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
+}
+
+function ssToClash(uri: string): string | null {
+  const url = new URL(uri);
+  const name = decodeURIComponent(url.hash.slice(1));
+  const server = url.hostname;
+  const port = url.port;
+
+  // userinfo is base64(method:password)
+  const decoded = Buffer.from(url.username, 'base64').toString();
+  const firstColon = decoded.indexOf(':');
+  if (firstColon === -1) return null;
+  const cipher = decoded.slice(0, firstColon);
+  const password = decoded.slice(firstColon + 1);
+
+  return `  - {name: "${esc(name)}", type: ss, server: ${server}, port: ${port}, cipher: ${cipher}, password: "${esc(password)}"}`;
+}
+
+function vmessToClash(uri: string): string | null {
+  const b64 = uri.replace('vmess://', '');
+  const json = JSON.parse(Buffer.from(b64, 'base64').toString());
+
+  const name = json.ps || 'VMess';
+  const server = json.add;
+  const port = json.port;
+  const uuid = json.id;
+
+  if (!server || !port || !uuid) return null;
+
+  let line = `  - {name: "${esc(name)}", type: vmess, server: ${server}, port: ${port}, uuid: ${uuid}, alterId: 0, cipher: auto`;
+
+  if (json.tls === 'tls') {
+    line += ', tls: true';
+    if (json.sni) line += `, sni: ${json.sni}`;
+  }
+
+  if (json.net === 'ws') {
+    line += ', network: ws';
+    const wsOpts: string[] = [];
+    if (json.path) wsOpts.push(`path: "${esc(json.path)}"`);
+    if (json.host) wsOpts.push(`headers: {Host: ${json.host}}`);
+    if (wsOpts.length > 0) {
+      line += `, ws-opts: {${wsOpts.join(', ')}}`;
+    }
+  }
+
+  line += '}';
+  return line;
+}
+
+function trojanToClash(uri: string): string | null {
+  const url = new URL(uri);
+  const name = decodeURIComponent(url.hash.slice(1));
+  const server = url.hostname;
+  const port = url.port;
+  const password = url.username;
+  const sni = url.searchParams.get('sni') || server;
+
+  return `  - {name: "${esc(name)}", type: trojan, server: ${server}, port: ${port}, password: "${esc(password)}", sni: ${sni}}`;
+}