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56 lines
1.8 KiB
Go
Vendored
56 lines
1.8 KiB
Go
Vendored
// Copyright 2013 com authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package com
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import "regexp"
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const (
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regex_email_pattern = `(?i)[A-Z0-9._%+-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,6}`
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regex_strict_email_pattern = `(?i)[A-Z0-9!#$%&'*+/=?^_{|}~-]+` +
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`(?:\.[A-Z0-9!#$%&'*+/=?^_{|}~-]+)*` +
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`@(?:[A-Z0-9](?:[A-Z0-9-]*[A-Z0-9])?\.)+` +
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`[A-Z0-9](?:[A-Z0-9-]*[A-Z0-9])?`
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regex_url_pattern = `(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?`
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)
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var (
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regex_email *regexp.Regexp
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regex_strict_email *regexp.Regexp
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regex_url *regexp.Regexp
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)
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func init() {
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regex_email = regexp.MustCompile(regex_email_pattern)
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regex_strict_email = regexp.MustCompile(regex_strict_email_pattern)
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regex_url = regexp.MustCompile(regex_url_pattern)
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}
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// IsEmail validates string is an email address, if not return false
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// basically validation can match 99% cases
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func IsEmail(email string) bool {
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return regex_email.MatchString(email)
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}
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// IsEmailRFC validates string is an email address, if not return false
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// this validation omits RFC 2822
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func IsEmailRFC(email string) bool {
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return regex_strict_email.MatchString(email)
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}
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// IsUrl validates string is a url link, if not return false
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// simple validation can match 99% cases
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func IsUrl(url string) bool {
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return regex_url.MatchString(url)
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}
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