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81ed564793
Add a urls.Parse template function that front-ends url.Parse from the Go stdlib. Fixes #3849
125 lines
3.5 KiB
Go
125 lines
3.5 KiB
Go
// Copyright 2017 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 urls
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import (
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"errors"
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"fmt"
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"html/template"
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"net/url"
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"github.com/gohugoio/hugo/deps"
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"github.com/spf13/cast"
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)
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// New returns a new instance of the urls-namespaced template functions.
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func New(deps *deps.Deps) *Namespace {
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return &Namespace{
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deps: deps,
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}
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}
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// Namespace provides template functions for the "urls" namespace.
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type Namespace struct {
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deps *deps.Deps
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}
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// AbsURL takes a given string and converts it to an absolute URL.
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func (ns *Namespace) AbsURL(a interface{}) (template.HTML, error) {
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s, err := cast.ToStringE(a)
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if err != nil {
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return "", nil
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}
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return template.HTML(ns.deps.PathSpec.AbsURL(s, false)), nil
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}
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// Parse parses rawurl into a URL structure. The rawurl may be relative or
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// absolute.
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func (ns *Namespace) Parse(rawurl interface{}) (*url.URL, error) {
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s, err := cast.ToStringE(rawurl)
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if err != nil {
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return nil, fmt.Errorf("Error in Parse: %s", err)
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}
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return url.Parse(s)
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}
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// RelURL takes a given string and prepends the relative path according to a
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// page's position in the project directory structure.
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func (ns *Namespace) RelURL(a interface{}) (template.HTML, error) {
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s, err := cast.ToStringE(a)
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if err != nil {
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return "", nil
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}
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return template.HTML(ns.deps.PathSpec.RelURL(s, false)), nil
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}
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// URLize returns the given argument formatted as URL.
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func (ns *Namespace) URLize(a interface{}) (string, error) {
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s, err := cast.ToStringE(a)
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if err != nil {
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return "", nil
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}
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return ns.deps.PathSpec.URLize(s), nil
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}
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type reflinker interface {
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Ref(refs ...string) (string, error)
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RelRef(refs ...string) (string, error)
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}
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// Ref returns the absolute URL path to a given content item.
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func (ns *Namespace) Ref(in interface{}, refs ...string) (template.HTML, error) {
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p, ok := in.(reflinker)
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if !ok {
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return "", errors.New("invalid Page received in Ref")
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}
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s, err := p.Ref(refs...)
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return template.HTML(s), err
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}
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// RelRef returns the relative URL path to a given content item.
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func (ns *Namespace) RelRef(in interface{}, refs ...string) (template.HTML, error) {
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p, ok := in.(reflinker)
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if !ok {
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return "", errors.New("invalid Page received in RelRef")
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}
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s, err := p.RelRef(refs...)
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return template.HTML(s), err
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}
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// RelLangURL takes a given string and prepends the relative path according to a
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// page's position in the project directory structure and the current language.
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func (ns *Namespace) RelLangURL(a interface{}) (template.HTML, error) {
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s, err := cast.ToStringE(a)
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if err != nil {
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return "", err
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}
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return template.HTML(ns.deps.PathSpec.RelURL(s, true)), nil
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}
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// AbsLangURL takes a given string and converts it to an absolute URL according
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// to a page's position in the project directory structure and the current
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// language.
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func (ns *Namespace) AbsLangURL(a interface{}) (template.HTML, error) {
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s, err := cast.ToStringE(a)
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if err != nil {
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return "", err
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}
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return template.HTML(ns.deps.PathSpec.AbsURL(s, true)), nil
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}
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