Update markbates/goth (#10444)

- Fixes a JWT decoding issue in the OpenID provider
- Updates the GitHub provider to use the authorization header for authentication
- Updates the Twitch provider for Twitch's v5 API changes
- Adds the email and is_private_email fields to the Apple provider's GetUser implementation
- Modifies gothic to export a non-collidable context key for setting the Provider in a context.Context
- Adds new scopes to the Spotify provider
- Adds the IDToken from OpenID providers on the user struct
- Make Apple provider's SecretParams public
- Adds support for sign in with Apple, and drops support for Go versions 1.7 and 1.8
- Fixes the Slack provider's FetchURL logic to use the appropriate scope for the info it needs
Signed-off-by: Oscar LÃfwenhamn <oscar.lofwenhamn@cgi.com>

9 files changed, 42 insertions, 15 deletions

diff --git a/vendor/github.com/markbates/goth/.travis.yml b/vendor/github.com/markbates/goth/.travis.yml
index 7fd29cde8d..0bf9f1b873 100644
--- a/vendor/github.com/markbates/goth/.travis.yml
+++ b/vendor/github.com/markbates/goth/.travis.yml
@@ -3,9 +3,7 @@ language: go
 sudo: false
 
 go:
-  - 1.7
-  - 1.8
-  - 1.9
+  - "1.9"
   - "1.10"
   - "1.11"
   - "1.12"
diff --git a/vendor/github.com/markbates/goth/README.md b/vendor/github.com/markbates/goth/README.md
index a35746e4e1..a2b988f5af 100644
--- a/vendor/github.com/markbates/goth/README.md
+++ b/vendor/github.com/markbates/goth/README.md
@@ -17,6 +17,7 @@ $ go get github.com/markbates/goth
 ## Supported Providers
 
 * Amazon
+* Apple
 * Auth0
 * Azure AD
 * Battle.net
diff --git a/vendor/github.com/markbates/goth/go.mod b/vendor/github.com/markbates/goth/go.mod
index 11b3857d79..941bb64fda 100644
--- a/vendor/github.com/markbates/goth/go.mod
+++ b/vendor/github.com/markbates/goth/go.mod
@@ -3,12 +3,15 @@ module github.com/markbates/goth
 require (
 	cloud.google.com/go v0.30.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/gorilla/mux v1.6.2
 	github.com/gorilla/pat v0.0.0-20180118222023-199c85a7f6d1
 	github.com/gorilla/sessions v1.1.1
 	github.com/jarcoal/httpmock v0.0.0-20180424175123-9c70cfe4a1da
+	github.com/lestrrat-go/jwx v0.9.0
 	github.com/markbates/going v1.0.0
 	github.com/mrjones/oauth v0.0.0-20180629183705-f4e24b6d100c
+	github.com/pkg/errors v0.8.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/stretchr/testify v1.2.2
 	golang.org/x/oauth2 v0.0.0-20180620175406-ef147856a6dd
diff --git a/vendor/github.com/markbates/goth/go.sum b/vendor/github.com/markbates/goth/go.sum
index ae43832953..1ecf8cdbc8 100644
--- a/vendor/github.com/markbates/goth/go.sum
+++ b/vendor/github.com/markbates/goth/go.sum
@@ -2,6 +2,8 @@ cloud.google.com/go v0.30.0 h1:xKvyLgk56d0nksWq49J0UyGEeUIicTl4+UBiX1NPX9g=
 cloud.google.com/go v0.30.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/gorilla/context v1.1.1 h1:AWwleXJkX/nhcU9bZSnZoi3h/qGYqQAGhq6zZe/aQW8=
@@ -16,10 +18,16 @@ github.com/gorilla/sessions v1.1.1 h1:YMDmfaK68mUixINzY/XjscuJ47uXFWSSHzFbBQM0Pr
 github.com/gorilla/sessions v1.1.1/go.mod h1:8KCfur6+4Mqcc6S0FEfKuN15Vl5MgXW92AE8ovaJD0w=
 github.com/jarcoal/httpmock v0.0.0-20180424175123-9c70cfe4a1da h1:FjHUJJ7oBW4G/9j1KzlHaXL09LyMVM9rupS39lncbXk=
 github.com/jarcoal/httpmock v0.0.0-20180424175123-9c70cfe4a1da/go.mod h1:ks+b9deReOc7jgqp+e7LuFiCBH6Rm5hL32cLcEAArb4=
+github.com/lestrrat-go/jwx v0.9.0 h1:Fnd0EWzTm0kFrBPzE/PEPp9nzllES5buMkksPMjEKpM=
+github.com/lestrrat-go/jwx v0.9.0/go.mod h1:iEoxlYfZjvoGpuWwxUz+eR5e6KTJGsaRcy/YNA/UnBk=
+github.com/lestrrat/jwx v0.9.0 h1:sxyUKCQ0KpX4+GPvSu9lAS0tIwpg7F/O8p/HqyZL4ns=
+github.com/lestrrat/jwx v0.9.0/go.mod h1:Ogdl8bCZz7p5/jj4RY2LQTceY/c+AoTIk9gJY+KP4H0=
 github.com/markbates/going v1.0.0 h1:DQw0ZP7NbNlFGcKbcE/IVSOAFzScxRtLpd0rLMzLhq0=
 github.com/markbates/going v1.0.0/go.mod h1:I6mnB4BPnEeqo85ynXIx1ZFLLbtiLHNXVgWeFO9OGOA=
 github.com/mrjones/oauth v0.0.0-20180629183705-f4e24b6d100c h1:3wkDRdxK92dF+c1ke2dtj7ZzemFWBHB9plnJOtlwdFA=
 github.com/mrjones/oauth v0.0.0-20180629183705-f4e24b6d100c/go.mod h1:skjdDftzkFALcuGzYSklqYd8gvat6F1gZJ4YPVbkZpM=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
diff --git a/vendor/github.com/markbates/goth/gothic/gothic.go b/vendor/github.com/markbates/goth/gothic/gothic.go
index ea4e1e0db8..edd0e98d71 100644
--- a/vendor/github.com/markbates/goth/gothic/gothic.go
+++ b/vendor/github.com/markbates/goth/gothic/gothic.go
@@ -10,6 +10,7 @@ package gothic
 import (
 	"bytes"
 	"compress/gzip"
+	"context"
 	"crypto/rand"
 	"encoding/base64"
 	"errors"
@@ -35,6 +36,11 @@ var defaultStore sessions.Store
 
 var keySet = false
 
+type key int
+
+// ProviderParamKey can be used as a key in context when passing in a provider
+const ProviderParamKey key = iota
+
 func init() {
 	key := []byte(os.Getenv("SESSION_SECRET"))
 	keySet = len(key) != 0
@@ -265,6 +271,11 @@ func getProviderName(req *http.Request) (string, error) {
 		return p, nil
 	}
 
+	// try to get it from the go-context's value of providerContextKey key
+	if p, ok := req.Context().Value(ProviderParamKey).(string); ok {
+		return p, nil
+	}
+
 	// As a fallback, loop over the used providers, if we already have a valid session for any provider (ie. user has already begun authentication with a provider), then return that provider name
 	providers := goth.GetProviders()
 	session, _ := Store.Get(req, SessionName)
@@ -280,6 +291,11 @@ func getProviderName(req *http.Request) (string, error) {
 	return "", errors.New("you must select a provider")
 }
 
+// GetContextWithProvider returns a new request context containing the provider
+func GetContextWithProvider(req *http.Request, provider string) *http.Request {
+	return req.WithContext(context.WithValue(req.Context(), ProviderParamKey, provider))
+}
+
 // StoreInSession stores a specified key/value pair in the session.
 func StoreInSession(key string, value string, req *http.Request, res http.ResponseWriter) error {
 	session, _ := Store.New(req, SessionName)
diff --git a/vendor/github.com/markbates/goth/providers/github/github.go b/vendor/github.com/markbates/goth/providers/github/github.go
index b3c29b9670..e635f5272b 100644
--- a/vendor/github.com/markbates/goth/providers/github/github.go
+++ b/vendor/github.com/markbates/goth/providers/github/github.go
@@ -10,7 +10,6 @@ import (
 	"io"
 	"io/ioutil"
 	"net/http"
-	"net/url"
 	"strconv"
 	"strings"
 
@@ -105,7 +104,9 @@ func (p *Provider) FetchUser(session goth.Session) (goth.User, error) {
 		return user, fmt.Errorf("%s cannot get user information without accessToken", p.providerName)
 	}
 
-	response, err := p.Client().Get(p.profileURL + "?access_token=" + url.QueryEscape(sess.AccessToken))
+	req, err := http.NewRequest("GET", p.profileURL, nil)
+	req.Header.Add("Authorization", "Bearer "+sess.AccessToken)
+	response, err := p.Client().Do(req)
 	if err != nil {
 		return user, err
 	}
@@ -172,7 +173,9 @@ func userFromReader(reader io.Reader, user *goth.User) error {
 }
 
 func getPrivateMail(p *Provider, sess *Session) (email string, err error) {
-	response, err := p.Client().Get(p.emailURL + "?access_token=" + url.QueryEscape(sess.AccessToken))
+	req, err := http.NewRequest("GET", p.emailURL, nil)
+	req.Header.Add("Authorization", "Bearer "+sess.AccessToken)
+	response, err := p.Client().Do(req)
 	if err != nil {
 		if response != nil {
 			response.Body.Close()
diff --git a/vendor/github.com/markbates/goth/providers/openidConnect/openidConnect.go b/vendor/github.com/markbates/goth/providers/openidConnect/openidConnect.go
index a4ff1d40ff..421d816ffb 100644
--- a/vendor/github.com/markbates/goth/providers/openidConnect/openidConnect.go
+++ b/vendor/github.com/markbates/goth/providers/openidConnect/openidConnect.go
@@ -6,12 +6,13 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/markbates/goth"
-	"golang.org/x/oauth2"
 	"io/ioutil"
 	"net/http"
 	"strings"
 	"time"
+
+	"github.com/markbates/goth"
+	"golang.org/x/oauth2"
 )
 
 const (
@@ -173,6 +174,7 @@ func (p *Provider) FetchUser(session goth.Session) (goth.User, error) {
 		RefreshToken: sess.RefreshToken,
 		ExpiresAt:    expiresAt,
 		RawData:      claims,
+		IDToken:      sess.IDToken,
 	}
 
 	p.userFromClaims(claims, &user)
@@ -391,13 +393,8 @@ func decodeJWT(jwt string) (map[string]interface{}, error) {
 		return nil, errors.New("jws: invalid token received, not all parts available")
 	}
 
-	// Re-pad, if needed
-	encodedPayload := jwtParts[1]
-	if l := len(encodedPayload) % 4; l != 0 {
-		encodedPayload += strings.Repeat("=", 4-l)
-	}
+	decodedPayload, err := base64.URLEncoding.WithPadding(base64.NoPadding).DecodeString(jwtParts[1])
 
-	decodedPayload, err := base64.StdEncoding.DecodeString(encodedPayload)
 	if err != nil {
 		return nil, err
 	}
diff --git a/vendor/github.com/markbates/goth/user.go b/vendor/github.com/markbates/goth/user.go
index 1d6a419632..0cc5830513 100644
--- a/vendor/github.com/markbates/goth/user.go
+++ b/vendor/github.com/markbates/goth/user.go
@@ -27,4 +27,5 @@ type User struct {
 	AccessTokenSecret string
 	RefreshToken      string
 	ExpiresAt         time.Time
+	IDToken           string
 }
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 97d9c86ee1..7c3f1399db 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -300,7 +300,7 @@ github.com/mailru/easyjson
 github.com/mailru/easyjson/buffer
 github.com/mailru/easyjson/jlexer
 github.com/mailru/easyjson/jwriter
-# github.com/markbates/goth v1.56.0
+# github.com/markbates/goth v1.61.2
 github.com/markbates/goth
 github.com/markbates/goth/gothic
 github.com/markbates/goth/providers/bitbucket