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71 lines
1.5 KiB
71 lines
1.5 KiB
package tls
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import (
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"crypto/tls"
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"crypto/x509"
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"encoding/pem"
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"errors"
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"os"
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"github.com/OpenIMSDK/Open-IM-Server/pkg/common/config"
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)
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func decryptPEM(data []byte, passphrase []byte) ([]byte, error) {
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if len(passphrase) == 0 {
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return data, nil
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}
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b, _ := pem.Decode(data)
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d, err := x509.DecryptPEMBlock(b, passphrase)
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if err != nil {
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return nil, err
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}
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return pem.EncodeToMemory(&pem.Block{
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Type: b.Type,
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Bytes: d,
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}), nil
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}
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func readEncryptablePEMBlock(path string, pwd []byte) ([]byte, error) {
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data, err := os.ReadFile(path)
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if err != nil {
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return nil, err
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}
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return decryptPEM(data, pwd)
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}
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// NewTLSConfig setup the TLS config from general config file.
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func NewTLSConfig(clientCertFile, clientKeyFile, caCertFile string, keyPwd []byte) *tls.Config {
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tlsConfig := tls.Config{}
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if clientCertFile != "" && clientKeyFile != "" {
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certPEMBlock, err := os.ReadFile(clientCertFile)
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if err != nil {
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panic(err)
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}
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keyPEMBlock, err := readEncryptablePEMBlock(clientKeyFile, keyPwd)
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if err != nil {
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panic(err)
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}
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cert, err := tls.X509KeyPair(certPEMBlock, keyPEMBlock)
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if err != nil {
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panic(err)
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}
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tlsConfig.Certificates = []tls.Certificate{cert}
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}
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caCert, err := os.ReadFile(caCertFile)
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if err != nil {
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panic(err)
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}
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caCertPool := x509.NewCertPool()
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ok := caCertPool.AppendCertsFromPEM(caCert)
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if !ok {
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panic(errors.New("not a valid CA cert"))
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}
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tlsConfig.RootCAs = caCertPool
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tlsConfig.InsecureSkipVerify = config.Config.Kafka.TLS.InsecureSkipVerify
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return &tlsConfig
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}
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