mirror of
https://github.com/moby/moby.git
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b9d9504df5
notable changes: - Free unused volumes in more cases - Convert BasicKeyRequest to KeyRequest to use cloudflare/cfssl 1.x.x - reduce direct imports of logrus diffs: - github.com/cloudflare/cfssl v1.6.4; full diff: https://github.com/cloudflare/cfssl/compare/5d63dbd981b5...v1.6.4 - github.com/moby/swarmkit/v2; full diff: https://github.com/moby/swarmkit/compare/bc71908479e5...60421a63a7f148ba1ec7d35c55e4cf9ac03d6b78 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
78 lines
3.5 KiB
Go
78 lines
3.5 KiB
Go
/*
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The MIT License (MIT)
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Copyright (c) 2014 Alex Saskevich
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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package util
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import (
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"net/url"
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"regexp"
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"strings"
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"unicode/utf8"
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)
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const (
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maxURLRuneCount = 2083
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minURLRuneCount = 3
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IP = `(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))`
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URLSchema = `((ftp|tcp|udp|wss?|https?):\/\/)`
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URLUsername = `(\S+(:\S*)?@)`
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URLPath = `((\/|\?|#)[^\s]*)`
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URLPort = `(:(\d{1,5}))`
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URLIP = `([1-9]\d?|1\d\d|2[01]\d|22[0-3])(\.(1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-4]))`
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URLSubdomain = `((www\.)|([a-zA-Z0-9]+([-_\.]?[a-zA-Z0-9])*[a-zA-Z0-9]\.[a-zA-Z0-9]+))`
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)
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var (
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URL = `^` + URLSchema + `?` + URLUsername + `?` + `((` + URLIP + `|(\[` + IP + `\])|(([a-zA-Z0-9]([a-zA-Z0-9-_]+)?[a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*)|(` + URLSubdomain + `?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))\.?` + URLPort + `?` + URLPath + `?$`
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rxURL = regexp.MustCompile(URL)
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)
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// IsURL check if the string is an URL.
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// This function is (graciously) adopted from
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// https://github.com/asaskevich/govalidator to avoid needing a full dependency on
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// `govalidator` for the one `IsURL` function.
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func IsURL(str string) bool {
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if str == "" || utf8.RuneCountInString(str) >= maxURLRuneCount || len(str) <= minURLRuneCount || strings.HasPrefix(str, ".") {
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return false
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}
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strTemp := str
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if strings.Contains(str, ":") && !strings.Contains(str, "://") {
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// support no indicated urlscheme but with colon for port number
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// http:// is appended so url.Parse will succeed, strTemp used so it does not impact rxURL.MatchString
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strTemp = "http://" + str
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}
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u, err := url.Parse(strTemp)
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if err != nil {
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return false
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}
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if strings.HasPrefix(u.Host, ".") {
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return false
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}
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if u.Host == "" && (u.Path != "" && !strings.Contains(u.Path, ".")) {
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return false
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}
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return rxURL.MatchString(str)
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}
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