1 files changed, 50 insertions, 0 deletions
diff --git a/internal/auth/github/github.go b/internal/auth/github/github.go
new file mode 100644
index 00000000..a06608a3
--- /dev/null
+++ b/internal/auth/github/github.go
@@ -0,0 +1,50 @@
+// Copyright 2018 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"crypto/tls"
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/google/go-github/github"
+)
+
+func Authenticate(apiEndpoint, login, passwd string) (name string, email string, website string, location string, _ error) {
+	tp := github.BasicAuthTransport{
+		Username: strings.TrimSpace(login),
+		Password: strings.TrimSpace(passwd),
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
+		},
+	}
+	client, err := github.NewEnterpriseClient(apiEndpoint, apiEndpoint, tp.Client())
+	if err != nil {
+		return "", "", "", "", fmt.Errorf("create new client: %v", err)
+	}
+	user, _, err := client.Users.Get(context.Background(), "")
+	if err != nil {
+		return "", "", "", "", fmt.Errorf("get user info: %v", err)
+	}
+
+	if user.Name != nil {
+		name = *user.Name
+	}
+	if user.Email != nil {
+		email = *user.Email
+	} else {
+		email = login + "+github@local"
+	}
+	if user.HTMLURL != nil {
+		website = strings.ToLower(*user.HTMLURL)
+	}
+	if user.Location != nil {
+		location = strings.ToUpper(*user.Location)
+	}
+
+	return name, email, website, location, nil
+}