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gitea/modules/util/util.go

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2017-01-25 03:43:02 +01:00
// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package util
import (
"net/url"
"path"
"strings"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
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// OptionalBool a boolean that can be "null"
type OptionalBool byte
const (
// OptionalBoolNone a "null" boolean value
OptionalBoolNone = iota
// OptionalBoolTrue a "true" boolean value
OptionalBoolTrue
// OptionalBoolFalse a "false" boolean value
OptionalBoolFalse
)
// IsTrue return true if equal to OptionalBoolTrue
func (o OptionalBool) IsTrue() bool {
return o == OptionalBoolTrue
}
// IsFalse return true if equal to OptionalBoolFalse
func (o OptionalBool) IsFalse() bool {
return o == OptionalBoolFalse
}
// IsNone return true if equal to OptionalBoolNone
func (o OptionalBool) IsNone() bool {
return o == OptionalBoolNone
}
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// OptionalBoolOf get the corresponding OptionalBool of a bool
func OptionalBoolOf(b bool) OptionalBool {
if b {
return OptionalBoolTrue
}
return OptionalBoolFalse
}
// Max max of two ints
func Max(a, b int) int {
if a < b {
return b
}
return a
}
// URLJoin joins url components, like path.Join, but preserving contents
func URLJoin(base string, elems ...string) string {
if !strings.HasSuffix(base, "/") {
base += "/"
}
baseURL, err := url.Parse(base)
if err != nil {
log.Error(4, "URLJoin: Invalid base URL %s", base)
return ""
}
joinedPath := path.Join(elems...)
argURL, err := url.Parse(joinedPath)
if err != nil {
log.Error(4, "URLJoin: Invalid arg %s", joinedPath)
return ""
}
joinedURL := baseURL.ResolveReference(argURL).String()
if !baseURL.IsAbs() && !strings.HasPrefix(base, "/") {
return joinedURL[1:] // Removing leading '/' if needed
}
return joinedURL
}
// IsExternalURL checks if rawURL points to an external URL like http://example.com
func IsExternalURL(rawURL string) bool {
parsed, err := url.Parse(rawURL)
if err != nil {
return true
}
if len(parsed.Host) != 0 && strings.Replace(parsed.Host, "www.", "", 1) != strings.Replace(setting.Domain, "www.", "", 1) {
return true
}
return false
}
// Min min of two ints
func Min(a, b int) int {
if a > b {
return b
}
return a
}