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104 lines
2.3 KiB
104 lines
2.3 KiB
7 years ago
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/*
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* Minio Cloud Storage, (C) 2018 Minio, Inc.
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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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*
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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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*/
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package net
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import (
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"encoding/json"
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"errors"
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"net/url"
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"path"
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)
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// URL - improved JSON friendly url.URL.
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type URL url.URL
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// IsEmpty - checks URL is empty or not.
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func (u URL) IsEmpty() bool {
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return u.String() == ""
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}
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// String - returns string representation of URL.
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func (u URL) String() string {
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// if port number 80 and 443, remove for http and https scheme respectively
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if u.Host != "" {
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host := MustParseHost(u.Host)
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switch {
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case u.Scheme == "http" && host.Port == 80:
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fallthrough
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case u.Scheme == "https" && host.Port == 443:
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u.Host = host.Name
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}
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}
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uu := url.URL(u)
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return uu.String()
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}
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// MarshalJSON - converts to JSON string data.
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func (u URL) MarshalJSON() ([]byte, error) {
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return json.Marshal(u.String())
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}
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// UnmarshalJSON - parses given data into URL.
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func (u *URL) UnmarshalJSON(data []byte) (err error) {
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var s string
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if err = json.Unmarshal(data, &s); err != nil {
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return err
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}
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// Allow empty string
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if s == "" {
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*u = URL{}
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return nil
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}
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var ru *URL
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if ru, err = ParseURL(s); err != nil {
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return err
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}
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*u = *ru
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return nil
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}
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// ParseURL - parses string into URL.
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func ParseURL(s string) (u *URL, err error) {
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var uu *url.URL
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if uu, err = url.Parse(s); err != nil {
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return nil, err
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}
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if uu.Host == "" {
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if uu.Scheme != "" {
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return nil, errors.New("scheme appears with empty host")
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}
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} else if _, err = ParseHost(uu.Host); err != nil {
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return nil, err
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}
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// Clean path in the URL.
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// Note: path.Clean() is used on purpose because in MS Windows filepath.Clean() converts
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// `/` into `\` ie `/foo` becomes `\foo`
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if uu.Path != "" {
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uu.Path = path.Clean(uu.Path)
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}
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v := URL(*uu)
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u = &v
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return u, nil
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}
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