Bump github.com/mattermost/mattermost-server/v6 from 6.1.0 to 6.3.0 (#1686)

Bumps [github.com/mattermost/mattermost-server/v6](https://github.com/mattermost/mattermost-server) from 6.1.0 to 6.3.0.
- [Release notes](https://github.com/mattermost/mattermost-server/releases)
- [Changelog](https://github.com/mattermost/mattermost-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mattermost/mattermost-server/compare/v6.1.0...v6.3.0)

---
updated-dependencies:
- dependency-name: github.com/mattermost/mattermost-server/v6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

4 files changed, 197 insertions, 5 deletions

diff --git a/vendor/github.com/minio/minio-go/v7/pkg/credentials/iam_aws.go b/vendor/github.com/minio/minio-go/v7/pkg/credentials/iam_aws.go
index bbd25ed8..485a717e 100644
--- a/vendor/github.com/minio/minio-go/v7/pkg/credentials/iam_aws.go
+++ b/vendor/github.com/minio/minio-go/v7/pkg/credentials/iam_aws.go
@@ -112,7 +112,7 @@ func (m *IAM) Retrieve() (Value, error) {
 
 				return &WebIdentityToken{Token: string(token)}, nil
 			},
-			roleARN:         os.Getenv("AWS_ROLE_ARN"),
+			RoleARN:         os.Getenv("AWS_ROLE_ARN"),
 			roleSessionName: os.Getenv("AWS_ROLE_SESSION_NAME"),
 		}
 
diff --git a/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts-tls-identity.go b/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts-tls-identity.go
new file mode 100644
index 00000000..2e37025a
--- /dev/null
+++ b/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts-tls-identity.go
@@ -0,0 +1,192 @@
+// MinIO Go Library for Amazon S3 Compatible Cloud Storage
+// Copyright 2021 MinIO, Inc.
+//
+// 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 credentials
+
+import (
+	"crypto/tls"
+	"encoding/xml"
+	"errors"
+	"io"
+	"net"
+	"net/http"
+	"net/url"
+	"strconv"
+	"time"
+)
+
+// CertificateIdentityOption is an optional AssumeRoleWithCertificate
+// parameter - e.g. a custom HTTP transport configuration or S3 credental
+// livetime.
+type CertificateIdentityOption func(*STSCertificateIdentity)
+
+// CertificateIdentityWithTransport returns a CertificateIdentityOption that
+// customizes the STSCertificateIdentity with the given http.RoundTripper.
+func CertificateIdentityWithTransport(t http.RoundTripper) CertificateIdentityOption {
+	return CertificateIdentityOption(func(i *STSCertificateIdentity) { i.Client.Transport = t })
+}
+
+// CertificateIdentityWithExpiry returns a CertificateIdentityOption that
+// customizes the STSCertificateIdentity with the given livetime.
+//
+// Fetched S3 credentials will have the given livetime if the STS server
+// allows such credentials.
+func CertificateIdentityWithExpiry(livetime time.Duration) CertificateIdentityOption {
+	return CertificateIdentityOption(func(i *STSCertificateIdentity) { i.S3CredentialLivetime = livetime })
+}
+
+// A STSCertificateIdentity retrieves S3 credentials from the MinIO STS API and
+// rotates those credentials once they expire.
+type STSCertificateIdentity struct {
+	Expiry
+
+	// STSEndpoint is the base URL endpoint of the STS API.
+	// For example, https://minio.local:9000
+	STSEndpoint string
+
+	// S3CredentialLivetime is the duration temp. S3 access
+	// credentials should be valid.
+	//
+	// It represents the access credential livetime requested
+	// by the client. The STS server may choose to issue
+	// temp. S3 credentials that have a different - usually
+	// shorter - livetime.
+	//
+	// The default livetime is one hour.
+	S3CredentialLivetime time.Duration
+
+	// Client is the HTTP client used to authenticate and fetch
+	// S3 credentials.
+	//
+	// A custom TLS client configuration can be specified by
+	// using a custom http.Transport:
+	//   Client: http.Client {
+	//       Transport: &http.Transport{
+	//           TLSClientConfig: &tls.Config{},
+	//       },
+	//   }
+	Client http.Client
+}
+
+var _ Provider = (*STSWebIdentity)(nil) // compiler check
+
+// NewSTSCertificateIdentity returns a STSCertificateIdentity that authenticates
+// to the given STS endpoint with the given TLS certificate and retrieves and
+// rotates S3 credentials.
+func NewSTSCertificateIdentity(endpoint string, certificate tls.Certificate, options ...CertificateIdentityOption) (*Credentials, error) {
+	if endpoint == "" {
+		return nil, errors.New("STS endpoint cannot be empty")
+	}
+	if _, err := url.Parse(endpoint); err != nil {
+		return nil, err
+	}
+	var identity = &STSCertificateIdentity{
+		STSEndpoint: endpoint,
+		Client: http.Client{
+			Transport: &http.Transport{
+				Proxy: http.ProxyFromEnvironment,
+				DialContext: (&net.Dialer{
+					Timeout:   30 * time.Second,
+					KeepAlive: 30 * time.Second,
+				}).DialContext,
+				ForceAttemptHTTP2:     true,
+				MaxIdleConns:          100,
+				IdleConnTimeout:       90 * time.Second,
+				TLSHandshakeTimeout:   10 * time.Second,
+				ExpectContinueTimeout: 5 * time.Second,
+				TLSClientConfig: &tls.Config{
+					Certificates: []tls.Certificate{certificate},
+				},
+			},
+		},
+	}
+	for _, option := range options {
+		option(identity)
+	}
+	return New(identity), nil
+}
+
+// Retrieve fetches a new set of S3 credentials from the configured
+// STS API endpoint.
+func (i *STSCertificateIdentity) Retrieve() (Value, error) {
+	endpointURL, err := url.Parse(i.STSEndpoint)
+	if err != nil {
+		return Value{}, err
+	}
+	var livetime = i.S3CredentialLivetime
+	if livetime == 0 {
+		livetime = 1 * time.Hour
+	}
+
+	queryValues := url.Values{}
+	queryValues.Set("Action", "AssumeRoleWithCertificate")
+	queryValues.Set("Version", STSVersion)
+	endpointURL.RawQuery = queryValues.Encode()
+
+	req, err := http.NewRequest(http.MethodPost, endpointURL.String(), nil)
+	if err != nil {
+		return Value{}, err
+	}
+	req.Form.Add("DurationSeconds", strconv.FormatUint(uint64(livetime.Seconds()), 10))
+
+	resp, err := i.Client.Do(req)
+	if err != nil {
+		return Value{}, err
+	}
+	if resp.Body != nil {
+		defer resp.Body.Close()
+	}
+	if resp.StatusCode != http.StatusOK {
+		return Value{}, errors.New(resp.Status)
+	}
+
+	const MaxSize = 10 * 1 << 20
+	var body io.Reader = resp.Body
+	if resp.ContentLength > 0 && resp.ContentLength < MaxSize {
+		body = io.LimitReader(body, resp.ContentLength)
+	} else {
+		body = io.LimitReader(body, MaxSize)
+	}
+
+	var response assumeRoleWithCertificateResponse
+	if err = xml.NewDecoder(body).Decode(&response); err != nil {
+		return Value{}, err
+	}
+	i.SetExpiration(response.Result.Credentials.Expiration, DefaultExpiryWindow)
+	return Value{
+		AccessKeyID:     response.Result.Credentials.AccessKey,
+		SecretAccessKey: response.Result.Credentials.SecretKey,
+		SessionToken:    response.Result.Credentials.SessionToken,
+		SignerType:      SignatureDefault,
+	}, nil
+}
+
+// Expiration returns the expiration time of the current S3 credentials.
+func (i *STSCertificateIdentity) Expiration() time.Time { return i.expiration }
+
+type assumeRoleWithCertificateResponse struct {
+	XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithCertificateResponse" json:"-"`
+	Result  struct {
+		Credentials struct {
+			AccessKey    string    `xml:"AccessKeyId" json:"accessKey,omitempty"`
+			SecretKey    string    `xml:"SecretAccessKey" json:"secretKey,omitempty"`
+			Expiration   time.Time `xml:"Expiration" json:"expiration,omitempty"`
+			SessionToken string    `xml:"SessionToken" json:"sessionToken,omitempty"`
+		} `xml:"Credentials" json:"credentials,omitempty"`
+	} `xml:"AssumeRoleWithCertificateResult"`
+	ResponseMetadata struct {
+		RequestID string `xml:"RequestId,omitempty"`
+	} `xml:"ResponseMetadata,omitempty"`
+}
diff --git a/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_ldap_identity.go b/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_ldap_identity.go
index 0fa5b55f..bdde1fa3 100644
--- a/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_ldap_identity.go
+++ b/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_ldap_identity.go
@@ -124,7 +124,7 @@ func stripPassword(err error) error {
 // LDAP Identity with a specified session policy. The `policy` parameter must be
 // a JSON string specifying the policy document.
 //
-// DEPRECATED: Use the `LDAPIdentityPolicyOpt` with `NewLDAPIdentity` instead.
+// Deprecated: Use the `LDAPIdentityPolicyOpt` with `NewLDAPIdentity` instead.
 func NewLDAPIdentityWithSessionPolicy(stsEndpoint, ldapUsername, ldapPassword, policy string) (*Credentials, error) {
 	return New(&LDAPIdentity{
 		Client:       &http.Client{Transport: http.DefaultTransport},
diff --git a/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_web_identity.go b/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_web_identity.go
index c1109140..25ca751d 100644
--- a/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_web_identity.go
+++ b/vendor/github.com/minio/minio-go/v7/pkg/credentials/sts_web_identity.go
@@ -78,9 +78,9 @@ type STSWebIdentity struct {
 	// This is a customer provided function and is mandatory.
 	GetWebIDTokenExpiry func() (*WebIdentityToken, error)
 
-	// roleARN is the Amazon Resource Name (ARN) of the role that the caller is
+	// RoleARN is the Amazon Resource Name (ARN) of the role that the caller is
 	// assuming.
-	roleARN string
+	RoleARN string
 
 	// roleSessionName is the identifier for the assumed role session.
 	roleSessionName string
@@ -164,7 +164,7 @@ func getWebIdentityCredentials(clnt *http.Client, endpoint, roleARN, roleSession
 // Retrieve retrieves credentials from the MinIO service.
 // Error will be returned if the request fails.
 func (m *STSWebIdentity) Retrieve() (Value, error) {
-	a, err := getWebIdentityCredentials(m.Client, m.STSEndpoint, m.roleARN, m.roleSessionName, m.GetWebIDTokenExpiry)
+	a, err := getWebIdentityCredentials(m.Client, m.STSEndpoint, m.RoleARN, m.roleSessionName, m.GetWebIDTokenExpiry)
 	if err != nil {
 		return Value{}, err
 	}