write basic OAuth driver

auth/oauth.go

@@ -0,0 +1,22 @@
+package auth
+
+import (
+	"golang.org/x/oauth2"
+)
+
+var oauthConfigs []oauth2.Config
+
+func CreateTestOAuth() {
+	oauthEndpoint := oauth2.Endpoint{
+		AuthURL:  "https://account.astraltech.xyz/application/o/authorize/",
+		TokenURL: "https://account.astraltech.xyz/application/o/token/",
+	}
+
+	oauthConfig := oauth2.Config{
+		ClientID:    "stalwart-webui",
+		Scopes:      []string{"user:email", "read:user"},
+		Endpoint:    oauthEndpoint,
+		RedirectURL: "http://localhost:8080/callback",
+	}
+	oauthConfigs = append(oauthConfigs, oauthConfig)
+}

auth/oauth_callback.go

@@ -0,0 +1,8 @@
+package auth
+
+import "net/http"
+
+// this is usually served at /callback
+func OAuthCallback(w http.ResponseWriter, r *http.Request) {
+
+}