forked from minio/mc
/
aliases.go
80 lines (74 loc) · 2.2 KB
/
aliases.go
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/*
* Minio Client (C) 2015 Minio, Inc.
*
* 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 main
import (
"regexp"
"strings"
"github.com/minio/mc/pkg/client"
"github.com/minio/minio/pkg/iodine"
)
// validAliasURL: use net/url.Parse to validate
var validAliasName = regexp.MustCompile("^[a-zA-Z][a-zA-Z0-9-]+$")
// Check if it is an aliased URL
func isValidAliasName(aliasName string) bool {
// help is reserved argument
switch aliasName {
case "help":
fallthrough
case "private":
fallthrough
case "readonly":
fallthrough
case "public":
fallthrough
case "authenticated":
return false
}
return validAliasName.MatchString(aliasName)
}
// aliasExpand expands aliased (name:/path) to full URL, used by url-parser
func aliasExpand(aliasedURL string, aliases map[string]string) (newURL string, err error) {
u, err := client.Parse(aliasedURL)
if err != nil {
return aliasedURL, iodine.New(errInvalidURL{URL: aliasedURL}, nil)
}
// proper URL
if u.Host != "" {
return aliasedURL, nil
}
for aliasName, expandedURL := range aliases {
if strings.HasPrefix(aliasedURL, aliasName+":") {
// Match found. Expand it.
splits := strings.Split(aliasedURL, ":")
// if expandedURL is missing, return aliasedURL treat it like fs
if expandedURL == "" {
return aliasedURL, nil
}
// if more splits found return
if len(splits) == 2 {
// remove any prefixed slashes
trimmedURL := expandedURL + "/" + strings.TrimPrefix(strings.TrimPrefix(splits[1], "/"), "\\")
u, err := client.Parse(trimmedURL)
if err != nil {
return aliasedURL, iodine.New(errInvalidURL{URL: aliasedURL}, nil)
}
return u.String(), nil
}
return aliasedURL, nil
}
}
return aliasedURL, nil
}