forked from google/webpackager
/
internal.go
35 lines (31 loc) · 999 Bytes
/
internal.go
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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package htmltask
import (
"log"
"net/url"
"github.com/layer0-platform/webpackager/processor/htmlproc/htmldoc"
"golang.org/x/net/html"
)
func resolveURLAttr(a *html.Attribute, doc *htmldoc.Document) *url.URL {
if a == nil {
return nil
}
u, err := url.Parse(a.Val)
if err != nil {
log.Printf("warning: invalid %v value %q: %v", a.Key, a.Val, err)
return nil
}
return doc.ResolveReference(u)
}