add webmention link to base.html

embed/initial/base.html

@@ -7,6 +7,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{{ .Title }}</title>
     <link rel="stylesheet" href="/static/pico.min.css">
+    <link rel="webmention" href="{{ .User.WebmentionUrl }}">
     <style>
         header {
             background-color: {{.HeaderColor}};

renderer_test.go

@@ -143,3 +143,17 @@ func TestRendersHeaderTitle(t *testing.T) {
 		t.Error("Header color not rendered. Got: " + result)
 	}
 }
+
+func TestRenderPostIncludesRelToWebMention(t *testing.T) {
+	user := getTestUser()
+	post, _ := user.CreateNewPost("testpost")
+
+	result, _ := owl.RenderPost(&post)
+	if !strings.Contains(result, "rel=\"webmention\"") {
+		t.Error("webmention rel not rendered. Got: " + result)
+	}
+
+	if !strings.Contains(result, "href=\""+user.WebmentionUrl()+"\"") {
+		t.Error("webmention href not rendered. Got: " + result)
+	}
+}

user.go

@@ -36,6 +36,11 @@ func (user User) FullUrl() string {
 	return url
 }
 
+func (user User) WebmentionUrl() string {
+	url, _ := url.JoinPath(user.FullUrl(), "webmention/")
+	return url
+}
+
 func (user User) PostDir() string {
 	return path.Join(user.Dir(), "public")
 }