2018-02-01 09:31:06 +01:00
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package handlers
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2018-02-03 18:14:47 +01:00
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import (
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"net"
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"regexp"
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"strings"
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)
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2018-02-01 09:31:06 +01:00
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const (
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Email string = "^(((([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.?$"
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CreditCard string = "^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\\d{3})\\d{11})$"
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ISBN10 string = "^(?:[0-9]{9}X|[0-9]{10})$"
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ISBN13 string = "^(?:[0-9]{13})$"
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UUID3 string = "^[0-9a-f]{8}-[0-9a-f]{4}-3[0-9a-f]{3}-[0-9a-f]{4}-[0-9a-f]{12}$"
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UUID4 string = "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
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UUID5 string = "^[0-9a-f]{8}-[0-9a-f]{4}-5[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
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UUID string = "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
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Alpha string = "^[a-zA-Z]+$"
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Alphanumeric string = "^[a-zA-Z0-9]+$"
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Numeric string = "^[0-9]+$"
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Int string = "^(?:[-+]?(?:0|[1-9][0-9]*))$"
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Float string = "^(?:[-+]?(?:[0-9]+))?(?:\\.[0-9]*)?(?:[eE][\\+\\-]?(?:[0-9]+))?$"
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Hexadecimal string = "^[0-9a-fA-F]+$"
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Hexcolor string = "^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$"
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RGBcolor string = "^rgb\\(\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*\\)$"
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ASCII string = "^[\x00-\x7F]+$"
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Multibyte string = "[^\x00-\x7F]"
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FullWidth string = "[^\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
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HalfWidth string = "[\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
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Base64 string = "^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$"
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PrintableASCII string = "^[\x20-\x7E]+$"
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DataURI string = "^data:.+\\/(.+);base64$"
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Latitude string = "^[-+]?([1-8]?\\d(\\.\\d+)?|90(\\.0+)?)$"
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Longitude string = "^[-+]?(180(\\.0+)?|((1[0-7]\\d)|([1-9]?\\d))(\\.\\d+)?)$"
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DNSName string = `^([a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62}){1}(\.[a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62})*[\._]?$`
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IP string = `(([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 string = `((ftp|tcp|udp|wss?|https?):\/\/)`
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URLUsername string = `(\S+(:\S*)?@)`
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URLPath string = `((\/|\?|#)[^\s]*)`
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URLPort string = `(:(\d{1,5}))`
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URLIP string = `([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 string = `((www\.)|([a-zA-Z0-9]([-\.][-\._a-zA-Z0-9]+)*))`
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URL string = `^` + 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 + `?$`
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SSN string = `^\d{3}[- ]?\d{2}[- ]?\d{4}$`
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WinPath string = `^[a-zA-Z]:\\(?:[^\\/:*?"<>|\r\n]+\\)*[^\\/:*?"<>|\r\n]*$`
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UnixPath string = `^(/[^/\x00]*)+/?$`
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Semver string = "^v?(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)(-(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(\\.(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*)?(\\+[0-9a-zA-Z-]+(\\.[0-9a-zA-Z-]+)*)?$"
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tagName string = "valid"
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hasLowerCase string = ".*[[:lower:]]"
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hasUpperCase string = ".*[[:upper:]]"
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)
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var (
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rxEmail = regexp.MustCompile(Email)
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rxCreditCard = regexp.MustCompile(CreditCard)
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rxISBN10 = regexp.MustCompile(ISBN10)
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rxISBN13 = regexp.MustCompile(ISBN13)
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rxUUID3 = regexp.MustCompile(UUID3)
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rxUUID4 = regexp.MustCompile(UUID4)
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rxUUID5 = regexp.MustCompile(UUID5)
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rxUUID = regexp.MustCompile(UUID)
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rxAlpha = regexp.MustCompile(Alpha)
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rxAlphanumeric = regexp.MustCompile(Alphanumeric)
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rxNumeric = regexp.MustCompile(Numeric)
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rxInt = regexp.MustCompile(Int)
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rxFloat = regexp.MustCompile(Float)
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rxHexadecimal = regexp.MustCompile(Hexadecimal)
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rxHexcolor = regexp.MustCompile(Hexcolor)
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rxRGBcolor = regexp.MustCompile(RGBcolor)
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rxASCII = regexp.MustCompile(ASCII)
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rxPrintableASCII = regexp.MustCompile(PrintableASCII)
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rxMultibyte = regexp.MustCompile(Multibyte)
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rxFullWidth = regexp.MustCompile(FullWidth)
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rxHalfWidth = regexp.MustCompile(HalfWidth)
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rxBase64 = regexp.MustCompile(Base64)
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rxDataURI = regexp.MustCompile(DataURI)
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rxLatitude = regexp.MustCompile(Latitude)
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rxLongitude = regexp.MustCompile(Longitude)
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rxDNSName = regexp.MustCompile(DNSName)
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rxURL = regexp.MustCompile(URL)
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rxSSN = regexp.MustCompile(SSN)
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rxWinPath = regexp.MustCompile(WinPath)
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rxUnixPath = regexp.MustCompile(UnixPath)
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rxSemver = regexp.MustCompile(Semver)
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rxHasLowerCase = regexp.MustCompile(hasLowerCase)
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rxHasUpperCase = regexp.MustCompile(hasUpperCase)
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)
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// IsAlphanumeric check if the string contains only letters and numbers. Empty string is valid.
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func IsAlphanumeric(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxAlphanumeric.MatchString(str)
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}
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// ByteLength check string's length
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func ByteLength(str string, params ...string) bool {
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if len(params) == 2 {
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min, _ := ToInt(params[0])
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max, _ := ToInt(params[1])
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return len(str) >= int(min) && len(str) <= int(max)
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}
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return false
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}
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// IsInt check if the string is an integer. Empty string is valid.
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func IsInt(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxInt.MatchString(str)
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}
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// IsNull check if the string is null.
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func IsNull(str string) bool {
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return len(str) == 0
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}
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// IsByteLength check if the string's length (in bytes) falls in a range.
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func IsByteLength(str string, min, max int) bool {
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return len(str) >= min && len(str) <= max
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}
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2018-02-03 18:14:47 +01:00
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// IsDNSName will validate the given string as a DNS name
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func IsDNSName(str string) bool {
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if str == "" || len(strings.Replace(str, ".", "", -1)) > 255 {
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// constraints already violated
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return false
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}
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return !IsIP(str) && rxDNSName.MatchString(str)
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}
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// IsIP checks if a string is either IP version 4 or 6.
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func IsIP(str string) bool {
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return net.ParseIP(str) != nil
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}
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