feat: generic oauth

internal/providers/providers.go

@@ -17,10 +17,10 @@ func NewProviders(config types.OAuthConfig) *Providers {
 }
 
 type Providers struct {
-	Config    types.OAuthConfig
-	Github    *oauth.OAuth
-	Google    *oauth.OAuth
-	Microsoft *oauth.OAuth
+	Config  types.OAuthConfig
+	Github  *oauth.OAuth
+	Google  *oauth.OAuth
+	Generic *oauth.OAuth
 }
 
 func (providers *Providers) Init() {
@@ -46,6 +46,20 @@ func (providers *Providers) Init() {
 		})
 		providers.Google.Init()
 	}
+	if providers.Config.GenericClientId != "" && providers.Config.GenericClientSecret != "" {
+		log.Info().Msg("Initializing Generic OAuth")
+		providers.Generic = oauth.NewOAuth(oauth2.Config{
+			ClientID:     providers.Config.GenericClientId,
+			ClientSecret: providers.Config.GenericClientSecret,
+			RedirectURL:  fmt.Sprintf("%s/api/oauth/callback/generic", providers.Config.AppURL),
+			Scopes:       []string{providers.Config.GenericScopes},
+			Endpoint: oauth2.Endpoint{
+				AuthURL:  providers.Config.GenericAuthURL,
+				TokenURL: providers.Config.GenericTokenURL,
+			},
+		})
+		providers.Generic.Init()
+	}
 }
 
 func (providers *Providers) GetProvider(provider string) *oauth.OAuth {
@@ -54,6 +68,8 @@ func (providers *Providers) GetProvider(provider string) *oauth.OAuth {
 		return providers.Github
 	case "google":
 		return providers.Google
+	case "generic":
+		return providers.Generic
 	default:
 		return nil
 	}
@@ -81,6 +97,16 @@ func (providers *Providers) GetUser(provider string) (string, error) {
 			return "", emailErr
 		}
 		return email, nil
+	case "generic":
+		if providers.Generic == nil {
+			return "", nil
+		}
+		client := providers.Generic.GetClient()
+		email, emailErr := GetGenericEmail(client, providers.Config.GenericUserInfoURL)
+		if emailErr != nil {
+			return "", emailErr
+		}
+		return email, nil
 	default:
 		return "", nil
 	}
@@ -94,5 +120,8 @@ func (provider *Providers) GetConfiguredProviders() []string {
 	if provider.Google != nil {
 		providers = append(providers, "google")
 	}
+	if provider.Generic != nil {
+		providers = append(providers, "generic")
+	}
 	return providers
 }