api: Add go files

I know this is a huge commit, but I can't be bothered to check
this in part by part.

api/owner_self_test.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestOwnerSelfBasics(t *testing.T) {
+	failTestOnError(t, setupTestEnv())
+
+	ownerNew("test@example.com", "Test", "hunter2")
+	session, _ := ownerLogin("test@example.com", "hunter2")
+
+	loggedIn, o := ownerSelf(session)
+	if !loggedIn {
+		t.Errorf("expected loggedIn=true got loggedIn=false")
+		return
+	}
+
+	if o.Name != "Test" {
+		t.Errorf("expected name=Test got name=%s", o.Name)
+		return
+	}
+}
+
+func TestOwnerSelfNotLoggedIn(t *testing.T) {
+	failTestOnError(t, setupTestEnv())
+
+	if loggedIn, _ := ownerSelf("does-not-exist"); loggedIn {
+		t.Errorf("expected loggedIn=false got loggedIn=true")
+		return
+	}
+}