| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| package auth |
| |
| import ( |
| "crypto/tls" |
| "encoding/json" |
| "fmt" |
| "io" |
| |
| "github.com/pkg/errors" |
| ) |
| |
| // Provider is a interface of authentication providers. |
| type Provider interface { |
| // Init the authentication provider. |
| Init() error |
| |
| // Name func returns the identifier for this authentication method. |
| Name() string |
| |
| // return a client certificate chain, or nil if the data are not available |
| GetTLSCertificate() (*tls.Certificate, error) |
| |
| // GetData returns the authentication data identifying this client that will be sent to the broker. |
| GetData() ([]byte, error) |
| |
| io.Closer |
| } |
| |
| // NewProvider get/create an authentication data provider which provides the data |
| // that this client will be sent to the broker. |
| // Some authentication method need to auth between each client channel. So it need |
| // the broker, who it will talk to. |
| func NewProvider(name string, params string) (Provider, error) { |
| m := parseParams(params) |
| |
| switch name { |
| case "": |
| return NewAuthDisabled(), nil |
| |
| case "tls", "org.apache.pulsar.client.impl.auth.AuthenticationTls": |
| return NewAuthenticationTLSWithParams(m), nil |
| |
| case "token", "org.apache.pulsar.client.impl.auth.AuthenticationToken": |
| return NewAuthenticationTokenWithParams(m) |
| |
| case "athenz", "org.apache.pulsar.client.impl.auth.AuthenticationAthenz": |
| return NewAuthenticationAthenzWithParams(m) |
| |
| case "oauth2", "org.apache.pulsar.client.impl.auth.oauth2.AuthenticationOAuth2": |
| return NewAuthenticationOAuth2WithParams(m) |
| |
| default: |
| return nil, errors.New(fmt.Sprintf("invalid auth provider '%s'", name)) |
| } |
| } |
| |
| func parseParams(params string) map[string]string { |
| var mapString map[string]string |
| json.Unmarshal([]byte(params), &mapString) |
| return mapString |
| } |