mirror of
https://github.com/rocky-linux/peridot.git
synced 2024-11-30 16:46:27 +00:00
87 lines
2.8 KiB
Go
87 lines
2.8 KiB
Go
// Package grpcutil implements various utilities to simplify common gRPC APIs.
|
|
package grpcutil
|
|
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
"crypto/x509"
|
|
|
|
"github.com/certifi/gocertifi"
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/credentials"
|
|
)
|
|
|
|
const (
|
|
// SkipVerifyCA is a constant that imrpoves the readability of `WithSystemCerts`
|
|
SkipVerifyCA = true
|
|
|
|
// VerifyCA is a constant that improves the readability of `WithSystemCerts`.
|
|
VerifyCA = false
|
|
)
|
|
|
|
// WithSystemCerts is a dial option for requiring TLS with the system
|
|
// certificate pool.
|
|
//
|
|
// This function panics if the system pool cannot be loaded.
|
|
func WithSystemCerts(insecureSkipVerify bool) grpc.DialOption {
|
|
certPool, err := x509.SystemCertPool()
|
|
if err != nil {
|
|
// Fall back to Mozilla collection of root CAs.
|
|
certPool, err = gocertifi.CACerts()
|
|
if err != nil {
|
|
// This library promises that this should never occur.
|
|
panic("gocertifi returned an error: " + err.Error())
|
|
}
|
|
}
|
|
|
|
return grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{
|
|
RootCAs: certPool,
|
|
InsecureSkipVerify: insecureSkipVerify,
|
|
}))
|
|
}
|
|
|
|
// WithCustomCerts is a dial option for requiring TLS from a specified path.
|
|
// If the path is a directory, all certs are loaded. If it is an individual
|
|
// file only the directly specified cert is loaded.
|
|
//
|
|
// This function panics if custom certificate pool cannot be instantiated.
|
|
func WithCustomCerts(certPath string, insecureSkipVerify bool) grpc.DialOption {
|
|
certPool, err := customCertPool(certPath)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
return grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{
|
|
RootCAs: certPool,
|
|
InsecureSkipVerify: insecureSkipVerify,
|
|
}))
|
|
}
|
|
|
|
type secureMetadataCreds map[string]string
|
|
|
|
func (c secureMetadataCreds) RequireTransportSecurity() bool { return true }
|
|
func (c secureMetadataCreds) GetRequestMetadata(context.Context, ...string) (map[string]string, error) {
|
|
return c, nil
|
|
}
|
|
|
|
// WithBearerToken is a dial option to add a standard HTTP Bearer token to all
|
|
// requests sent from a client.
|
|
func WithBearerToken(token string) grpc.DialOption {
|
|
return grpc.WithPerRPCCredentials(secureMetadataCreds{"authorization": "Bearer " + token})
|
|
}
|
|
|
|
type insecureMetadataCreds map[string]string
|
|
|
|
func (c insecureMetadataCreds) RequireTransportSecurity() bool { return false }
|
|
func (c insecureMetadataCreds) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
|
|
return c, nil
|
|
}
|
|
|
|
// WithInsecureBearerToken is a dial option to add a standard HTTP Bearer token
|
|
// to all requests sent from an insecure client.
|
|
//
|
|
// Must be used in conjunction with `grpc.WithInsecure()`.
|
|
func WithInsecureBearerToken(token string) grpc.DialOption {
|
|
return grpc.WithPerRPCCredentials(insecureMetadataCreds{"authorization": "Bearer " + token})
|
|
}
|