mirror of https://github.com/gohugoio/hugo.git
76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
// Copyright 2017-present The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package helpers
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import (
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"fmt"
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"net/url"
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"strings"
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)
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// A BaseURL in Hugo is normally on the form scheme://path, but the
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// form scheme: is also valid (mailto:hugo@rules.com).
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type BaseURL struct {
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url *url.URL
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urlStr string
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}
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func (b BaseURL) String() string {
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return b.urlStr
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}
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// WithProtocol returns the BaseURL prefixed with the given protocol.
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// The Protocol is normally of the form "scheme://", i.e. "webcal://".
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func (b BaseURL) WithProtocol(protocol string) (string, error) {
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u := b.URL()
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scheme := protocol
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isFullProtocol := strings.HasSuffix(scheme, "://")
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isOpaqueProtocol := strings.HasSuffix(scheme, ":")
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if isFullProtocol {
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scheme = strings.TrimSuffix(scheme, "://")
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} else if isOpaqueProtocol {
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scheme = strings.TrimSuffix(scheme, ":")
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}
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u.Scheme = scheme
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if isFullProtocol && u.Opaque != "" {
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u.Opaque = "//" + u.Opaque
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} else if isOpaqueProtocol && u.Opaque == "" {
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return "", fmt.Errorf("Cannot determine BaseURL for protocol %q", protocol)
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}
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return u.String(), nil
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}
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// URL returns a copy of the internal URL.
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// The copy can be safely used and modified.
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func (b BaseURL) URL() *url.URL {
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c := *b.url
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return &c
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}
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func newBaseURLFromString(b string) (BaseURL, error) {
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var result BaseURL
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base, err := url.Parse(b)
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if err != nil {
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return result, err
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}
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return BaseURL{url: base, urlStr: base.String()}, nil
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}
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