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125 lines
3.5 KiB
125 lines
3.5 KiB
/*
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* MinIO Go Library for Amazon S3 Compatible Cloud Storage
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* Copyright 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package credentials
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import (
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"encoding/xml"
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"errors"
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"net/http"
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"net/url"
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"time"
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)
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// AssumeRoleWithLDAPResponse contains the result of successful
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// AssumeRoleWithLDAPIdentity request
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type AssumeRoleWithLDAPResponse struct {
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XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithLDAPIdentityResponse" json:"-"`
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Result LDAPIdentityResult `xml:"AssumeRoleWithLDAPIdentityResult"`
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ResponseMetadata struct {
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RequestID string `xml:"RequestId,omitempty"`
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} `xml:"ResponseMetadata,omitempty"`
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}
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// LDAPIdentityResult - contains credentials for a successful
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// AssumeRoleWithLDAPIdentity request.
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type LDAPIdentityResult struct {
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Credentials struct {
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AccessKey string `xml:"AccessKeyId" json:"accessKey,omitempty"`
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SecretKey string `xml:"SecretAccessKey" json:"secretKey,omitempty"`
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Expiration time.Time `xml:"Expiration" json:"expiration,omitempty"`
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SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty"`
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} `xml:",omitempty"`
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SubjectFromToken string `xml:",omitempty"`
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}
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// LDAPIdentity retrieves credentials from MinIO
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type LDAPIdentity struct {
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Expiry
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// Required http Client to use when connecting to MinIO STS service.
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Client *http.Client
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// Exported STS endpoint to fetch STS credentials.
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STSEndpoint string
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// LDAP username/password used to fetch LDAP STS credentials.
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LDAPUsername, LDAPPassword string
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}
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// NewLDAPIdentity returns new credentials object that uses LDAP
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// Identity.
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func NewLDAPIdentity(stsEndpoint, ldapUsername, ldapPassword string) (*Credentials, error) {
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return New(&LDAPIdentity{
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Client: &http.Client{Transport: http.DefaultTransport},
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STSEndpoint: stsEndpoint,
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LDAPUsername: ldapUsername,
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LDAPPassword: ldapPassword,
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}), nil
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}
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// Retrieve gets the credential by calling the MinIO STS API for
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// LDAP on the configured stsEndpoint.
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func (k *LDAPIdentity) Retrieve() (value Value, err error) {
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u, kerr := url.Parse(k.STSEndpoint)
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if kerr != nil {
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err = kerr
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return
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}
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v := url.Values{}
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v.Set("Action", "AssumeRoleWithLDAPIdentity")
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v.Set("Version", STSVersion)
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v.Set("LDAPUsername", k.LDAPUsername)
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v.Set("LDAPPassword", k.LDAPPassword)
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u.RawQuery = v.Encode()
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req, kerr := http.NewRequest(http.MethodPost, u.String(), nil)
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if kerr != nil {
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err = kerr
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return
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}
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resp, kerr := k.Client.Do(req)
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if kerr != nil {
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err = kerr
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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err = errors.New(resp.Status)
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return
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}
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r := AssumeRoleWithLDAPResponse{}
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if err = xml.NewDecoder(resp.Body).Decode(&r); err != nil {
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return
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}
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cr := r.Result.Credentials
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k.SetExpiration(cr.Expiration, DefaultExpiryWindow)
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return Value{
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AccessKeyID: cr.AccessKey,
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SecretAccessKey: cr.SecretKey,
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SessionToken: cr.SessionToken,
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SignerType: SignatureV4,
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}, nil
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}
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