From f42c458782fbe84c52ebac87fab06b42cd19b91a Mon Sep 17 00:00:00 2001
From: Aravinth Manivannan <realaravinth@batsense.net>
Date: Sun, 24 Mar 2024 11:37:01 +0530
Subject: [PATCH] feat: extend webfinger to respond to profile page URIs

---
 routers/web/webfinger.go            | 13 +++++++++++++
 tests/integration/webfinger_test.go | 13 +++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/routers/web/webfinger.go b/routers/web/webfinger.go
index a87c426b3..35f3bbff8 100644
--- a/routers/web/webfinger.go
+++ b/routers/web/webfinger.go
@@ -64,6 +64,19 @@ func WebfingerQuery(ctx *context.Context) {
 		if u != nil && u.KeepEmailPrivate {
 			err = user_model.ErrUserNotExist{}
 		}
+	case "https", "http":
+		if resource.Host != appURL.Host {
+			ctx.Error(http.StatusBadRequest)
+			return
+		}
+
+		parts := strings.Split(resource.Path, "/")
+		if len(parts) < 2 { // fragment[0] is empty space, fragment[1] may be username
+			ctx.Error(http.StatusBadRequest)
+			return
+		}
+
+		u, err = user_model.GetUserByName(ctx, parts[1])
 	default:
 		ctx.Error(http.StatusBadRequest)
 		return
diff --git a/tests/integration/webfinger_test.go b/tests/integration/webfinger_test.go
index a1abc8d32..7e6d46063 100644
--- a/tests/integration/webfinger_test.go
+++ b/tests/integration/webfinger_test.go
@@ -65,4 +65,17 @@ func TestWebfinger(t *testing.T) {
 
 	req = NewRequest(t, "GET", fmt.Sprintf("/.well-known/webfinger?resource=mailto:%s", user.Email))
 	MakeRequest(t, req, http.StatusNotFound)
+
+	req = NewRequest(t, "GET", fmt.Sprintf("/.well-known/webfinger?resource=http://%s/%s/foo", appURL.Host, user.Name))
+	session.MakeRequest(t, req, http.StatusOK)
+
+	req = NewRequest(t, "GET", fmt.Sprintf("/.well-known/webfinger?resource=https://%s/%s", appURL.Host, user.Name))
+	session.MakeRequest(t, req, http.StatusOK)
+
+	req = NewRequest(t, "GET", fmt.Sprintf("/.well-known/webfinger?resource=http://%s", appURL.Host))
+	MakeRequest(t, req, http.StatusBadRequest)
+
+	req = NewRequest(t, "GET", fmt.Sprintf("/.well-known/webfinger?resource=http://%s/%s/foo", "example.com", user.Name))
+	MakeRequest(t, req, http.StatusBadRequest)
+
 }
-- 
2.39.5