/
oauth_callback.go
820 lines (720 loc) · 27.4 KB
/
oauth_callback.go
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package handlers
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"time"
"golang.org/x/oauth2"
"github.com/coreos/go-oidc/v3/oidc"
"github.com/gin-gonic/gin"
"github.com/google/uuid"
log "github.com/sirupsen/logrus"
"github.com/authorizerdev/authorizer/server/constants"
"github.com/authorizerdev/authorizer/server/cookie"
"github.com/authorizerdev/authorizer/server/db"
"github.com/authorizerdev/authorizer/server/db/models"
"github.com/authorizerdev/authorizer/server/memorystore"
"github.com/authorizerdev/authorizer/server/oauth"
"github.com/authorizerdev/authorizer/server/refs"
"github.com/authorizerdev/authorizer/server/token"
"github.com/authorizerdev/authorizer/server/utils"
)
// OAuthCallbackHandler handles the OAuth callback for various oauth providers
func OAuthCallbackHandler() gin.HandlerFunc {
return func(ctx *gin.Context) {
provider := ctx.Param("oauth_provider")
state := ctx.Request.FormValue("state")
sessionState, err := memorystore.Provider.GetState(state)
if sessionState == "" || err != nil {
log.Debug("Invalid oauth state: ", state)
ctx.JSON(400, gin.H{"error": "invalid oauth state"})
return
}
// contains random token, redirect url, role
sessionSplit := strings.Split(state, "___")
if len(sessionSplit) < 3 {
log.Debug("Unable to get redirect url from state: ", state)
ctx.JSON(400, gin.H{"error": "invalid redirect url"})
return
}
// remove state from store
go memorystore.Provider.RemoveState(state)
stateValue := sessionSplit[0]
redirectURL := sessionSplit[1]
inputRoles := strings.Split(sessionSplit[2], ",")
scopeString := sessionSplit[3]
scopes := []string{}
if scopeString != "" {
if strings.Contains(scopeString, ",") {
scopes = strings.Split(scopeString, ",")
}
if strings.Contains(scopeString, " ") {
scopes = strings.Split(scopeString, " ")
}
}
var user *models.User
oauthCode := ctx.Request.FormValue("code")
if oauthCode == "" {
log.Debug("Invalid oauth code: ", oauthCode)
ctx.JSON(400, gin.H{"error": "invalid oauth code"})
return
}
switch provider {
case constants.AuthRecipeMethodGoogle:
user, err = processGoogleUserInfo(ctx, oauthCode)
case constants.AuthRecipeMethodGithub:
user, err = processGithubUserInfo(ctx, oauthCode)
case constants.AuthRecipeMethodFacebook:
user, err = processFacebookUserInfo(ctx, oauthCode)
case constants.AuthRecipeMethodLinkedIn:
user, err = processLinkedInUserInfo(ctx, oauthCode)
case constants.AuthRecipeMethodApple:
user, err = processAppleUserInfo(ctx, oauthCode)
case constants.AuthRecipeMethodDiscord:
user, err = processDiscordUserInfo(ctx, oauthCode)
case constants.AuthRecipeMethodTwitter:
user, err = processTwitterUserInfo(ctx, oauthCode, sessionState)
case constants.AuthRecipeMethodMicrosoft:
user, err = processMicrosoftUserInfo(ctx, oauthCode)
case constants.AuthRecipeMethodTwitch:
user, err = processTwitchUserInfo(ctx, oauthCode)
default:
log.Info("Invalid oauth provider")
err = fmt.Errorf(`invalid oauth provider`)
}
if err != nil {
log.Debug("Failed to process user info: ", err)
ctx.JSON(400, gin.H{"error": err.Error()})
return
}
existingUser, err := db.Provider.GetUserByEmail(ctx, refs.StringValue(user.Email))
log := log.WithField("user", user.Email)
isSignUp := false
if err != nil {
isSignupDisabled, err := memorystore.Provider.GetBoolStoreEnvVariable(constants.EnvKeyDisableSignUp)
if err != nil {
log.Debug("Failed to get signup disabled env variable: ", err)
ctx.JSON(400, gin.H{"error": err.Error()})
return
}
if isSignupDisabled {
log.Debug("Failed to signup as disabled")
ctx.JSON(400, gin.H{"error": "signup is disabled for this instance"})
return
}
// user not registered, register user and generate session token
user.SignupMethods = provider
// make sure inputRoles don't include protected roles
hasProtectedRole := false
for _, ir := range inputRoles {
protectedRolesString, err := memorystore.Provider.GetStringStoreEnvVariable(constants.EnvKeyProtectedRoles)
protectedRoles := []string{}
if err != nil {
log.Debug("Failed to get protected roles: ", err)
protectedRolesString = ""
} else {
protectedRoles = strings.Split(protectedRolesString, ",")
}
if utils.StringSliceContains(protectedRoles, ir) {
hasProtectedRole = true
}
}
if hasProtectedRole {
log.Debug("Signup is not allowed with protected roles:", inputRoles)
ctx.JSON(400, gin.H{"error": "invalid role"})
return
}
user.Roles = strings.Join(inputRoles, ",")
now := time.Now().Unix()
user.EmailVerifiedAt = &now
user, _ = db.Provider.AddUser(ctx, user)
isSignUp = true
} else {
user = existingUser
if user.RevokedTimestamp != nil {
log.Debug("User access revoked at: ", user.RevokedTimestamp)
ctx.JSON(400, gin.H{"error": "user access has been revoked"})
return
}
// user exists in db, check if method was google
// if not append google to existing signup method and save it
signupMethod := existingUser.SignupMethods
if !strings.Contains(signupMethod, provider) {
signupMethod = signupMethod + "," + provider
}
user.SignupMethods = signupMethod
if user.EmailVerifiedAt == nil {
now := time.Now().Unix()
user.EmailVerifiedAt = &now
}
// There multiple scenarios with roles here in social login
// 1. user has access to protected roles + roles and trying to login
// 2. user has not signed up for one of the available role but trying to signup.
// Need to modify roles in this case
// find the unassigned roles
existingRoles := strings.Split(existingUser.Roles, ",")
unasignedRoles := []string{}
for _, ir := range inputRoles {
if !utils.StringSliceContains(existingRoles, ir) {
unasignedRoles = append(unasignedRoles, ir)
}
}
if len(unasignedRoles) > 0 {
// check if it contains protected unassigned role
hasProtectedRole := false
for _, ur := range unasignedRoles {
protectedRolesString, err := memorystore.Provider.GetStringStoreEnvVariable(constants.EnvKeyProtectedRoles)
protectedRoles := []string{}
if err != nil {
log.Debug("Failed to get protected roles: ", err)
protectedRolesString = ""
} else {
protectedRoles = strings.Split(protectedRolesString, ",")
}
if utils.StringSliceContains(protectedRoles, ur) {
hasProtectedRole = true
}
}
if hasProtectedRole {
log.Debug("Invalid role. User is using protected unassigned role")
ctx.JSON(400, gin.H{"error": "invalid role"})
return
} else {
user.Roles = existingUser.Roles + "," + strings.Join(unasignedRoles, ",")
}
} else {
user.Roles = existingUser.Roles
}
user, err = db.Provider.UpdateUser(ctx, user)
if err != nil {
log.Debug("Failed to update user: ", err)
ctx.JSON(500, gin.H{"error": err.Error()})
return
}
}
// TODO
// use stateValue to get code / nonce
// add code / nonce to id_token
code := ""
codeChallenge := ""
nonce := ""
if stateValue != "" {
// Get state from store
authorizeState, _ := memorystore.Provider.GetState(stateValue)
if authorizeState != "" {
authorizeStateSplit := strings.Split(authorizeState, "@@")
if len(authorizeStateSplit) > 1 {
code = authorizeStateSplit[0]
codeChallenge = authorizeStateSplit[1]
} else {
nonce = authorizeState
}
go memorystore.Provider.RemoveState(stateValue)
}
}
if nonce == "" {
nonce = uuid.New().String()
}
authToken, err := token.CreateAuthToken(ctx, user, inputRoles, scopes, provider, nonce, code)
if err != nil {
log.Debug("Failed to create auth token: ", err)
ctx.JSON(500, gin.H{"error": err.Error()})
}
// Code challenge could be optional if PKCE flow is not used
if code != "" {
if err := memorystore.Provider.SetState(code, codeChallenge+"@@"+authToken.FingerPrintHash); err != nil {
log.Debug("SetState failed: ", err)
ctx.JSON(500, gin.H{"error": err.Error()})
}
}
expiresIn := authToken.AccessToken.ExpiresAt - time.Now().Unix()
if expiresIn <= 0 {
expiresIn = 1
}
// params := "access_token=" + authToken.AccessToken.Token + "&token_type=bearer&expires_in=" + strconv.FormatInt(expiresIn, 10) + "&state=" + stateValue + "&id_token=" + authToken.IDToken.Token + "&nonce=" + nonce
// Note: If OIDC breaks in the future, use the above params
params := "state=" + stateValue + "&nonce=" + nonce
if code != "" {
params += "&code=" + code
}
sessionKey := provider + ":" + user.ID
cookie.SetSession(ctx, authToken.FingerPrintHash)
memorystore.Provider.SetUserSession(sessionKey, constants.TokenTypeSessionToken+"_"+authToken.FingerPrint, authToken.FingerPrintHash, authToken.SessionTokenExpiresAt)
memorystore.Provider.SetUserSession(sessionKey, constants.TokenTypeAccessToken+"_"+authToken.FingerPrint, authToken.AccessToken.Token, authToken.AccessToken.ExpiresAt)
if authToken.RefreshToken != nil {
params += `&refresh_token=` + authToken.RefreshToken.Token
memorystore.Provider.SetUserSession(sessionKey, constants.TokenTypeRefreshToken+"_"+authToken.FingerPrint, authToken.RefreshToken.Token, authToken.RefreshToken.ExpiresAt)
}
go func() {
if isSignUp {
utils.RegisterEvent(ctx, constants.UserSignUpWebhookEvent, provider, user)
// User is also logged in with signup
utils.RegisterEvent(ctx, constants.UserLoginWebhookEvent, provider, user)
} else {
utils.RegisterEvent(ctx, constants.UserLoginWebhookEvent, provider, user)
}
db.Provider.AddSession(ctx, &models.Session{
UserID: user.ID,
UserAgent: utils.GetUserAgent(ctx.Request),
IP: utils.GetIP(ctx.Request),
})
}()
if strings.Contains(redirectURL, "?") {
redirectURL = redirectURL + "&" + params
} else {
redirectURL = redirectURL + "?" + strings.TrimPrefix(params, "&")
}
ctx.Redirect(http.StatusFound, redirectURL)
}
}
func processGoogleUserInfo(ctx context.Context, code string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.GoogleConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return nil, fmt.Errorf("invalid google exchange code: %s", err.Error())
}
verifier := oauth.OIDCProviders.GoogleOIDC.Verifier(&oidc.Config{ClientID: oauth.OAuthProviders.GoogleConfig.ClientID})
// Extract the ID Token from OAuth2 token.
rawIDToken, ok := oauth2Token.Extra("id_token").(string)
if !ok {
log.Debug("Failed to extract ID Token from OAuth2 token")
return nil, fmt.Errorf("unable to extract id_token")
}
// Parse and verify ID Token payload.
idToken, err := verifier.Verify(ctx, rawIDToken)
if err != nil {
log.Debug("Failed to verify ID Token: ", err)
return nil, fmt.Errorf("unable to verify id_token: %s", err.Error())
}
user := &models.User{}
if err := idToken.Claims(&user); err != nil {
log.Debug("Failed to parse ID Token claims: ", err)
return nil, fmt.Errorf("unable to extract claims")
}
return user, nil
}
func processGithubUserInfo(ctx context.Context, code string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.GithubConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return nil, fmt.Errorf("invalid github exchange code: %s", err.Error())
}
client := http.Client{}
req, err := http.NewRequest("GET", constants.GithubUserInfoURL, nil)
if err != nil {
log.Debug("Failed to create github user info request: ", err)
return nil, fmt.Errorf("error creating github user info request: %s", err.Error())
}
req.Header.Set(
"Authorization", fmt.Sprintf("token %s", oauth2Token.AccessToken),
)
response, err := client.Do(req)
if err != nil {
log.Debug("Failed to request github user info: ", err)
return nil, err
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
log.Debug("Failed to read github user info response body: ", err)
return nil, fmt.Errorf("failed to read github response body: %s", err.Error())
}
if response.StatusCode >= 400 {
log.Debug("Failed to request github user info: ", string(body))
return nil, fmt.Errorf("failed to request github user info: %s", string(body))
}
userRawData := make(map[string]string)
json.Unmarshal(body, &userRawData)
name := strings.Split(userRawData["name"], " ")
firstName := ""
lastName := ""
if len(name) >= 1 && strings.TrimSpace(name[0]) != "" {
firstName = name[0]
}
if len(name) > 1 && strings.TrimSpace(name[1]) != "" {
lastName = name[0]
}
picture := userRawData["avatar_url"]
email := userRawData["email"]
if email == "" {
type GithubUserEmails struct {
Email string `json:"email"`
Primary bool `json:"primary"`
}
// fetch using /users/email endpoint
req, err := http.NewRequest(http.MethodGet, constants.GithubUserEmails, nil)
if err != nil {
log.Debug("Failed to create github emails request: ", err)
return nil, fmt.Errorf("error creating github user info request: %s", err.Error())
}
req.Header.Set(
"Authorization", fmt.Sprintf("token %s", oauth2Token.AccessToken),
)
response, err := client.Do(req)
if err != nil {
log.Debug("Failed to request github user email: ", err)
return nil, err
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
log.Debug("Failed to read github user email response body: ", err)
return nil, fmt.Errorf("failed to read github response body: %s", err.Error())
}
if response.StatusCode >= 400 {
log.Debug("Failed to request github user email: ", string(body))
return nil, fmt.Errorf("failed to request github user info: %s", string(body))
}
emailData := []GithubUserEmails{}
err = json.Unmarshal(body, &emailData)
if err != nil {
log.Debug("Failed to parse github user email: ", err)
return nil, fmt.Errorf("failed to parse github user email: %s", err.Error())
}
for _, userEmail := range emailData {
email = userEmail.Email
if userEmail.Primary {
break
}
}
}
user := &models.User{
GivenName: &firstName,
FamilyName: &lastName,
Picture: &picture,
Email: &email,
}
return user, nil
}
func processFacebookUserInfo(ctx context.Context, code string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.FacebookConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Invalid facebook exchange code: ", err)
return nil, fmt.Errorf("invalid facebook exchange code: %s", err.Error())
}
client := http.Client{}
req, err := http.NewRequest("GET", constants.FacebookUserInfoURL+oauth2Token.AccessToken, nil)
if err != nil {
log.Debug("Error creating facebook user info request: ", err)
return nil, fmt.Errorf("error creating facebook user info request: %s", err.Error())
}
response, err := client.Do(req)
if err != nil {
log.Debug("Failed to process facebook user: ", err)
return nil, err
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
log.Debug("Failed to read facebook response: ", err)
return nil, fmt.Errorf("failed to read facebook response body: %s", err.Error())
}
if response.StatusCode >= 400 {
log.Debug("Failed to request facebook user info: ", string(body))
return nil, fmt.Errorf("failed to request facebook user info: %s", string(body))
}
userRawData := make(map[string]interface{})
json.Unmarshal(body, &userRawData)
email := fmt.Sprintf("%v", userRawData["email"])
picObject := userRawData["picture"].(map[string]interface{})["data"]
picDataObject := picObject.(map[string]interface{})
firstName := fmt.Sprintf("%v", userRawData["first_name"])
lastName := fmt.Sprintf("%v", userRawData["last_name"])
picture := fmt.Sprintf("%v", picDataObject["url"])
user := &models.User{
GivenName: &firstName,
FamilyName: &lastName,
Picture: &picture,
Email: &email,
}
return user, nil
}
func processLinkedInUserInfo(ctx context.Context, code string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.LinkedInConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return nil, fmt.Errorf("invalid linkedin exchange code: %s", err.Error())
}
client := http.Client{}
req, err := http.NewRequest("GET", constants.LinkedInUserInfoURL, nil)
if err != nil {
log.Debug("Failed to create linkedin user info request: ", err)
return nil, fmt.Errorf("error creating linkedin user info request: %s", err.Error())
}
req.Header = http.Header{
"Authorization": []string{fmt.Sprintf("Bearer %s", oauth2Token.AccessToken)},
}
response, err := client.Do(req)
if err != nil {
log.Debug("Failed to request linkedin user info: ", err)
return nil, err
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
log.Debug("Failed to read linkedin user info response body: ", err)
return nil, fmt.Errorf("failed to read linkedin response body: %s", err.Error())
}
if response.StatusCode >= 400 {
log.Debug("Failed to request linkedin user info: ", string(body))
return nil, fmt.Errorf("failed to request linkedin user info: %s", string(body))
}
userRawData := make(map[string]interface{})
json.Unmarshal(body, &userRawData)
req, err = http.NewRequest("GET", constants.LinkedInEmailURL, nil)
if err != nil {
log.Debug("Failed to create linkedin email info request: ", err)
return nil, fmt.Errorf("error creating linkedin user info request: %s", err.Error())
}
req.Header = http.Header{
"Authorization": []string{fmt.Sprintf("Bearer %s", oauth2Token.AccessToken)},
}
response, err = client.Do(req)
if err != nil {
log.Debug("Failed to request linkedin email info: ", err)
return nil, err
}
defer response.Body.Close()
body, err = io.ReadAll(response.Body)
if err != nil {
log.Debug("Failed to read linkedin email info response body: ", err)
return nil, fmt.Errorf("failed to read linkedin email response body: %s", err.Error())
}
if response.StatusCode >= 400 {
log.Debug("Failed to request linkedin user info: ", string(body))
return nil, fmt.Errorf("failed to request linkedin user info: %s", string(body))
}
emailRawData := make(map[string]interface{})
json.Unmarshal(body, &emailRawData)
firstName := userRawData["localizedFirstName"].(string)
lastName := userRawData["localizedLastName"].(string)
profilePicture := userRawData["profilePicture"].(map[string]interface{})["displayImage~"].(map[string]interface{})["elements"].([]interface{})[0].(map[string]interface{})["identifiers"].([]interface{})[0].(map[string]interface{})["identifier"].(string)
emailAddress := emailRawData["elements"].([]interface{})[0].(map[string]interface{})["handle~"].(map[string]interface{})["emailAddress"].(string)
user := &models.User{
GivenName: &firstName,
FamilyName: &lastName,
Picture: &profilePicture,
Email: &emailAddress,
}
return user, nil
}
func processAppleUserInfo(ctx context.Context, code string) (*models.User, error) {
var user = &models.User{}
oauth2Token, err := oauth.OAuthProviders.AppleConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return user, fmt.Errorf("invalid apple exchange code: %s", err.Error())
}
// Extract the ID Token from OAuth2 token.
rawIDToken, ok := oauth2Token.Extra("id_token").(string)
if !ok {
log.Debug("Failed to extract ID Token from OAuth2 token")
return user, fmt.Errorf("unable to extract id_token")
}
tokenSplit := strings.Split(rawIDToken, ".")
claimsData := tokenSplit[1]
decodedClaimsData, err := base64.RawURLEncoding.DecodeString(claimsData)
if err != nil {
log.Debugf("Failed to decrypt claims %s: %s", claimsData, err.Error())
return user, fmt.Errorf("failed to decrypt claims data: %s", err.Error())
}
claims := make(map[string]interface{})
err = json.Unmarshal(decodedClaimsData, &claims)
if err != nil {
log.Debug("Failed to unmarshal claims data: ", err)
return user, fmt.Errorf("failed to unmarshal claims data: %s", err.Error())
}
if val, ok := claims["email"]; !ok || val == nil {
log.Debug("Failed to extract email from claims.")
return user, fmt.Errorf("unable to extract email, please check the scopes enabled for your app. It needs `email`, `name` scopes")
} else {
email := val.(string)
user.Email = &email
}
if val, ok := claims["name"]; ok {
nameData := val.(map[string]interface{})
if nameVal, ok := nameData["firstName"]; ok {
givenName := nameVal.(string)
user.GivenName = &givenName
}
if nameVal, ok := nameData["lastName"]; ok {
familyName := nameVal.(string)
user.FamilyName = &familyName
}
}
return nil, err
}
func processDiscordUserInfo(ctx context.Context, code string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.DiscordConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return nil, fmt.Errorf("invalid discord exchange code: %s", err.Error())
}
client := http.Client{}
req, err := http.NewRequest("GET", constants.DiscordUserInfoURL, nil)
if err != nil {
log.Debug("Failed to create Discord user info request: ", err)
return nil, fmt.Errorf("error creating Discord user info request: %s", err.Error())
}
req.Header = http.Header{
"Authorization": []string{fmt.Sprintf("Bearer %s", oauth2Token.AccessToken)},
}
response, err := client.Do(req)
if err != nil {
log.Debug("Failed to request Discord user info: ", err)
return nil, err
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
log.Debug("Failed to read Discord user info response body: ", err)
return nil, fmt.Errorf("failed to read Discord response body: %s", err.Error())
}
if response.StatusCode >= 400 {
log.Debug("Failed to request Discord user info: ", string(body))
return nil, fmt.Errorf("failed to request Discord user info: %s", string(body))
}
// Unmarshal the response body into a map
responseRawData := make(map[string]interface{})
if err := json.Unmarshal(body, &responseRawData); err != nil {
log.Debug("Failed to unmarshal Discord response: ", err)
return nil, fmt.Errorf("failed to unmarshal Discord response: %s", err.Error())
}
// Safely extract the user data
userRawData, ok := responseRawData["user"].(map[string]interface{})
if !ok {
log.Debug("User data is not in expected format or missing in response")
return nil, fmt.Errorf("user data is not in expected format or missing in response")
}
// Extract the username
firstName, ok := userRawData["username"].(string)
if !ok {
log.Debug("Username is not in expected format or missing in user data")
return nil, fmt.Errorf("username is not in expected format or missing in user data")
}
profilePicture := fmt.Sprintf("https://cdn.discordapp.com/avatars/%s/%s.png", userRawData["id"].(string), userRawData["avatar"].(string))
user := &models.User{
GivenName: &firstName,
Picture: &profilePicture,
}
return user, nil
}
func processTwitterUserInfo(ctx context.Context, code, verifier string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.TwitterConfig.Exchange(ctx, code, oauth2.SetAuthURLParam("code_verifier", verifier))
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return nil, fmt.Errorf("invalid twitter exchange code: %s", err.Error())
}
client := http.Client{}
req, err := http.NewRequest("GET", constants.TwitterUserInfoURL, nil)
if err != nil {
log.Debug("Failed to create Twitter user info request: ", err)
return nil, fmt.Errorf("error creating Twitter user info request: %s", err.Error())
}
req.Header = http.Header{
"Authorization": []string{fmt.Sprintf("Bearer %s", oauth2Token.AccessToken)},
}
response, err := client.Do(req)
if err != nil {
log.Debug("Failed to request Twitter user info: ", err)
return nil, err
}
defer response.Body.Close()
body, err := io.ReadAll(response.Body)
if err != nil {
log.Debug("Failed to read Twitter user info response body: ", err)
return nil, fmt.Errorf("failed to read Twitter response body: %s", err.Error())
}
if response.StatusCode >= 400 {
log.Debug("Failed to request Twitter user info: ", string(body))
return nil, fmt.Errorf("failed to request Twitter user info: %s", string(body))
}
responseRawData := make(map[string]interface{})
json.Unmarshal(body, &responseRawData)
userRawData := responseRawData["data"].(map[string]interface{})
// log.Info(userRawData)
// Twitter API does not return E-Mail adresses by default. For that case special privileges have
// to be granted on a per-App basis. See https://developer.twitter.com/en/docs/twitter-api/v1/accounts-and-users/manage-account-settings/api-reference/get-account-verify_credentials
// Currently Twitter API only provides the full name of a user. To fill givenName and familyName
// the full name will be split at the first whitespace. This approach will not be valid for all name combinations
nameArr := strings.SplitAfterN(userRawData["name"].(string), " ", 2)
firstName := nameArr[0]
lastName := ""
if len(nameArr) == 2 {
lastName = nameArr[1]
}
nickname := userRawData["username"].(string)
profilePicture := userRawData["profile_image_url"].(string)
user := &models.User{
GivenName: &firstName,
FamilyName: &lastName,
Picture: &profilePicture,
Nickname: &nickname,
}
return user, nil
}
// process microsoft user information
func processMicrosoftUserInfo(ctx context.Context, code string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.MicrosoftConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return nil, fmt.Errorf("invalid microsoft exchange code: %s", err.Error())
}
// we need to skip issuer check because for common tenant it will return internal issuer which does not match
verifier := oauth.OIDCProviders.MicrosoftOIDC.Verifier(&oidc.Config{
ClientID: oauth.OAuthProviders.MicrosoftConfig.ClientID,
SkipIssuerCheck: true,
})
// Extract the ID Token from OAuth2 token.
rawIDToken, ok := oauth2Token.Extra("id_token").(string)
if !ok {
log.Debug("Failed to extract ID Token from OAuth2 token")
return nil, fmt.Errorf("unable to extract id_token")
}
// Parse and verify ID Token payload.
idToken, err := verifier.Verify(ctx, rawIDToken)
if err != nil {
log.Debug("Failed to verify ID Token: ", err)
return nil, fmt.Errorf("unable to verify id_token: %s", err.Error())
}
user := &models.User{}
if err := idToken.Claims(&user); err != nil {
log.Debug("Failed to parse ID Token claims: ", err)
return nil, fmt.Errorf("unable to extract claims")
}
return user, nil
}
// process twitch user information
func processTwitchUserInfo(ctx context.Context, code string) (*models.User, error) {
oauth2Token, err := oauth.OAuthProviders.TwitchConfig.Exchange(ctx, code)
if err != nil {
log.Debug("Failed to exchange code for token: ", err)
return nil, fmt.Errorf("invalid twitch exchange code: %s", err.Error())
}
// Extract the ID Token from OAuth2 token.
rawIDToken, ok := oauth2Token.Extra("id_token").(string)
if !ok {
log.Debug("Failed to extract ID Token from OAuth2 token")
return nil, fmt.Errorf("unable to extract id_token")
}
verifier := oauth.OIDCProviders.TwitchOIDC.Verifier(&oidc.Config{
ClientID: oauth.OAuthProviders.TwitchConfig.ClientID,
SkipIssuerCheck: true,
})
// Parse and verify ID Token payload.
idToken, err := verifier.Verify(ctx, rawIDToken)
if err != nil {
log.Debug("Failed to verify ID Token: ", err)
return nil, fmt.Errorf("unable to verify id_token: %s", err.Error())
}
user := &models.User{}
if err := idToken.Claims(&user); err != nil {
log.Debug("Failed to parse ID Token claims: ", err)
return nil, fmt.Errorf("unable to extract claims")
}
return user, nil
}