/
wildcard.go
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/
wildcard.go
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// Copyright 2019 The ChubaoFS Authors.
//
// 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 objectnode
import (
"regexp"
"strings"
)
type Wildcard struct {
domain string
r *regexp.Regexp
}
func (w *Wildcard) Parse(host string) (bucket string, is bool) {
if is = w.r.MatchString(host); is {
var index int
if index = strings.Index(host, "."+w.domain); index == -1 {
is = false
return
}
bucket = host[:index]
return
}
return
}
func NewWildcard(domain string) (*Wildcard, error) {
var regexpString = "^(([a-zA-Z0-9]|-|_)+.)+" + domain + "(:(\\d)+)*$"
r, err := regexp.Compile(regexpString)
if err != nil {
return nil, err
}
var wc = &Wildcard{
domain: domain,
r: r,
}
return wc, nil
}
type Wildcards []*Wildcard
func (ws Wildcards) Parse(host string) (bucket string, is bool) {
for _, w := range ws {
if bucket, is = w.Parse(host); is {
return
}
}
return
}
func NewWildcards(domains []string) (Wildcards, error) {
var err error
var ws = make([]*Wildcard, len(domains))
for i := 0; i < len(domains); i++ {
if ws[i], err = NewWildcard(domains[i]); err != nil {
return nil, err
}
}
return ws, nil
}