rename rpcx to zrpc

zrpc/internal/auth/credential.go

@@ -0,0 +1,47 @@
+package auth
+
+import (
+	"context"
+
+	"google.golang.org/grpc/metadata"
+)
+
+type Credential struct {
+	App   string
+	Token string
+}
+
+func (c *Credential) GetRequestMetadata(context.Context, ...string) (map[string]string, error) {
+	return map[string]string{
+		appKey:   c.App,
+		tokenKey: c.Token,
+	}, nil
+}
+
+func (c *Credential) RequireTransportSecurity() bool {
+	return false
+}
+
+func ParseCredential(ctx context.Context) Credential {
+	var credential Credential
+
+	md, ok := metadata.FromIncomingContext(ctx)
+	if !ok {
+		return credential
+	}
+
+	apps, tokens := md[appKey], md[tokenKey]
+	if len(apps) == 0 || len(tokens) == 0 {
+		return credential
+	}
+
+	app, token := apps[0], tokens[0]
+	if len(app) == 0 || len(token) == 0 {
+		return credential
+	}
+
+	credential.App = app
+	credential.Token = token
+
+	return credential
+}