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path_config.go
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path_config.go
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// Copyright © 2018 Immutability, LLC
//
// Licensed 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 main
import (
"context"
"fmt"
"time"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
)
func pathConfig(b *backend) []*framework.Path {
return []*framework.Path{
&framework.Path{
Pattern: "config",
Fields: map[string]*framework.FieldSchema{
"role_claim": &framework.FieldSchema{
Default: "group",
Type: framework.TypeString,
Description: `Name of the claim (key) which will be used to map roles to policies.`,
},
"subject_claim": &framework.FieldSchema{
Default: "sub",
Type: framework.TypeString,
Description: `Name of the claim (key) which will be used to map the user's identity.`,
},
"jwt_signer": &framework.FieldSchema{
Type: framework.TypeString,
Description: `The public key used to validate the JWT signature.`,
},
"jwt_algorithm": &framework.FieldSchema{
Type: framework.TypeString,
Default: "RS256",
Description: `The algorithm used to generate the signer's private key.`,
},
"oauth_resource": &framework.FieldSchema{
Type: framework.TypeString,
Description: `The resource that is the audience of this JWT. Only used when authenticating with user/pass.`,
},
"oauth_endpoint": &framework.FieldSchema{
Type: framework.TypeString,
Description: `The URL to authenticate to retrieve a JWT. Only used when authenticating with user/pass.`,
},
"oauth_cacert": &framework.FieldSchema{
Type: framework.TypeString,
Description: `The CA Certificate used to sign the OAuth endpoint certificate.`,
},
"oauth_client_id": &framework.FieldSchema{
Type: framework.TypeString,
Description: `The client ID to retrieve a JWT. Only used when authenticating with user/pass.`,
},
"oauth_client_secret": &framework.FieldSchema{
Type: framework.TypeString,
Description: `The shared secret to retrieve a JWT. Only used when authenticating with user/pass.`,
},
"ad_domain": &framework.FieldSchema{
Type: framework.TypeString,
Description: `The AD domain for the user.`,
},
"ttl": &framework.FieldSchema{
Type: framework.TypeString,
Description: `Duration after which authentication will be expired`,
},
"max_ttl": &framework.FieldSchema{
Type: framework.TypeString,
Description: `Maximum duration after which authentication will be expired`,
},
"bound_cidr_list": &framework.FieldSchema{
Type: framework.TypeCommaStringSlice,
Description: `Comma separated string or list of CIDR blocks. If set, specifies the blocks of
IP addresses which can perform the login operation.`,
},
"trustee_list": &framework.FieldSchema{
Type: framework.TypeCommaStringSlice,
Description: `Comma separated string or list of trustee addresses. If set, specifies that only delegated
authentication by one of these trustees is allowed.`,
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathConfigWrite,
logical.UpdateOperation: b.pathConfigWrite,
logical.ReadOperation: b.pathConfigRead,
},
},
}
}
func (b *backend) pathConfigWrite(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
roleClaim := data.Get("role_claim").(string)
subjectClaim := data.Get("subject_claim").(string)
jwtSigner := data.Get("jwt_signer").(string)
jwtAlgorithm := data.Get("jwt_algorithm").(string)
oauthResource := data.Get("oauth_resource").(string)
oauthEndpoint := data.Get("oauth_endpoint").(string)
oauthCACert := data.Get("oauth_cacert").(string)
oauthClientID := data.Get("oauth_client_id").(string)
oauthClientSecret := data.Get("oauth_client_secret").(string)
adDomain := data.Get("ad_domain").(string)
var ttl time.Duration
var err error
ttlRaw, ok := data.GetOk("ttl")
if !ok || len(ttlRaw.(string)) == 0 {
ttl = 0
} else {
ttl, err = time.ParseDuration(ttlRaw.(string))
if err != nil {
return logical.ErrorResponse(fmt.Sprintf("Invalid 'ttl':%s", err)), nil
}
}
var maxTTL time.Duration
maxTTLRaw, ok := data.GetOk("max_ttl")
if !ok || len(maxTTLRaw.(string)) == 0 {
maxTTL = 0
} else {
maxTTL, err = time.ParseDuration(maxTTLRaw.(string))
if err != nil {
return logical.ErrorResponse(fmt.Sprintf("Invalid 'max_ttl':%s", err)), nil
}
}
var boundCIDRList []string
if boundCIDRListRaw, ok := data.GetOk("bound_cidr_list"); ok {
boundCIDRList = boundCIDRListRaw.([]string)
}
var trusteeList []string
if trusteeListRaw, ok := data.GetOk("trustee_list"); ok {
trusteeList = trusteeListRaw.([]string)
}
configBundle := config{
RoleClaim: roleClaim,
SubjectClaim: subjectClaim,
JWTSigner: jwtSigner,
JWTAlgorithm: jwtAlgorithm,
OauthResource: oauthResource,
OauthEndpoint: oauthEndpoint,
OauthCACert: oauthCACert,
OauthClientID: oauthClientID,
OauthClientSecret: oauthClientSecret,
ADDomain: adDomain,
TTL: ttl,
MaxTTL: maxTTL,
BoundCIDRList: boundCIDRList,
TrusteeList: trusteeList,
}
entry, err := logical.StorageEntryJSON("config", configBundle)
if err != nil {
return nil, err
}
if err := req.Storage.Put(ctx, entry); err != nil {
return nil, err
}
return nil, nil
}
func (b *backend) pathConfigRead(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
config, err := b.Config(ctx, req.Storage)
if err != nil {
return nil, err
}
if config == nil {
return nil, fmt.Errorf("configuration object not found")
}
config.TTL /= time.Second
config.MaxTTL /= time.Second
resp := &logical.Response{
Data: map[string]interface{}{
"role_claim": config.RoleClaim,
"subject_claim": config.SubjectClaim,
"jwt_signer": config.JWTSigner,
"jwt_algorithm": config.JWTAlgorithm,
"oauth_resource": config.OauthResource,
"oauth_endpoint": config.OauthEndpoint,
"oauth_cacert": config.OauthCACert,
"oauth_client_id": config.OauthClientID,
"oauth_client_secret": config.OauthClientSecret,
"oauth_ad_domain": config.ADDomain,
"ttl": config.TTL,
"max_ttl": config.MaxTTL,
"bound_cidr_list": config.BoundCIDRList,
"trustee_list": config.TrusteeList,
},
}
return resp, nil
}
// Config returns the configuration for this backend.
func (b *backend) Config(ctx context.Context, s logical.Storage) (*config, error) {
entry, err := s.Get(ctx, "config")
if err != nil {
return nil, err
}
var result config
if entry != nil {
if err := entry.DecodeJSON(&result); err != nil {
return nil, fmt.Errorf("error reading configuration: %s", err)
}
}
return &result, nil
}
type config struct {
RoleClaim string `json:"role_claim" structs:"role_claim" mapstructure:"role_claim"`
SubjectClaim string `json:"subject_claim" structs:"subject_claim" mapstructure:"subject_claim"`
JWTSigner string `json:"jwt_signer" structs:"jwt_signer" mapstructure:"jwt_signer"`
JWTAlgorithm string `json:"jwt_algorithm" structs:"jwt_algorithm" mapstructure:"jwt_algorithm"`
OauthResource string `json:"oauth_resource" structs:"oauth_resource" mapstructure:"oauth_resource"`
OauthEndpoint string `json:"oauth_endpoint" structs:"oauth_endpoint" mapstructure:"oauth_endpoint"`
OauthCACert string `json:"oauth_cacert" structs:"oauth_cacert" mapstructure:"oauth_cacert"`
OauthClientID string `json:"oauth_client_id" structs:"oauth_client_id" mapstructure:"oauth_client_id"`
OauthClientSecret string `json:"oauth_client_secret" structs:"oauth_client_secret" mapstructure:"oauth_client_secret"`
ADDomain string `json:"ad_domain" structs:"ad_domain" mapstructure:"ad_domain"`
TTL time.Duration `json:"ttl" structs:"ttl" mapstructure:"ttl"`
MaxTTL time.Duration `json:"max_ttl" structs:"max_ttl" mapstructure:"max_ttl"`
BoundCIDRList []string `json:"bound_cidr_list_list" structs:"bound_cidr_list" mapstructure:"bound_cidr_list"`
TrusteeList []string `json:"trustee_list" structs:"trustee_list" mapstructure:"trustee_list"`
}