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mc/url.go

88 lines
2.3 KiB
Go

/*
* 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 (
"strings"
"github.com/minio/mc/pkg/client"
"github.com/minio/minio/pkg/probe"
)
// ``...`` recursiveSeparator
const (
recursiveSeparator = "..."
)
// isURLRecursive - find out if requested url is recursive
func isURLRecursive(urlStr string) bool {
return strings.HasSuffix(urlStr, recursiveSeparator)
}
// stripRecursiveURL - Strip "..." from the URL if present.
func stripRecursiveURL(urlStr string) string {
if !isURLRecursive(urlStr) {
return urlStr
}
urlStr = strings.TrimSuffix(urlStr, recursiveSeparator)
if urlStr == "" {
urlStr = "."
}
return urlStr
}
// getCanonicalizedURL - extracts URL string from a single cmd-line argument
func getCanonicalizedURL(arg string, aliases map[string]string) (urlStr string, err *probe.Error) {
// Check and expand Alias
urlStr, err = aliasExpand(arg, aliases)
if err != nil {
return "", err.Trace()
}
if _, err := client.Parse(urlStr); err != nil {
// Not a valid URL. Return error
return "", probe.NewError(errInvalidURL{urlStr})
}
return urlStr, nil
}
// getCanonicalizedURLs - extracts multiple URL strings from a single cmd-line argument
func getCanonicalizedURLs(args []string, aliases map[string]string) (urls []string, err *probe.Error) {
for _, arg := range args {
u, err := getCanonicalizedURL(arg, aliases)
if err != nil {
return nil, err.Trace()
}
urls = append(urls, u)
}
return urls, nil
}
// args2URLs extracts source and target URLs from command-line args.
func args2URLs(args []string) ([]string, *probe.Error) {
config, err := getMcConfig()
if err != nil {
return nil, err.Trace()
}
// Convert arguments to URLs: expand alias, fix format...
URLs, err := getCanonicalizedURLs(args, config.Aliases)
if err != nil {
return nil, err.Trace()
}
return URLs, nil
}