Move gitea api calls in own "client" package (#78)

continue #75
close #16
- fix regression (from #34) _thanks to @crystal_
- create own gitea client package
- more logging
- add mock impl of CertDB

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: crystal <crystal@noreply.codeberg.org>
Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/78
Reviewed-by: crapStone <crapstone@noreply.codeberg.org>

server/gitea/client_test.go

@@ -0,0 +1,23 @@
+package gitea
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestJoinURL(t *testing.T) {
+	url := joinURL("")
+	assert.EqualValues(t, "", url)
+
+	url = joinURL("", "", "")
+	assert.EqualValues(t, "", url)
+
+	url = joinURL("http://wwow.url.com", "a", "b/c/", "d")
+	// assert.EqualValues(t, "http://wwow.url.com/a/b/c/d", url)
+	assert.EqualValues(t, "http://wwow.url.coma/b/c/d", url)
+
+	url = joinURL("h:://wrong", "acdc")
+	// assert.EqualValues(t, "h:://wrong/acdc", url)
+	assert.EqualValues(t, "h:://wrongacdc", url)
+}