diff options
Diffstat (limited to 'vendor/github.com/go-playground/validator/v10/baked_in.go')
| -rw-r--r-- | vendor/github.com/go-playground/validator/v10/baked_in.go | 3046 |
1 files changed, 0 insertions, 3046 deletions
diff --git a/vendor/github.com/go-playground/validator/v10/baked_in.go b/vendor/github.com/go-playground/validator/v10/baked_in.go deleted file mode 100644 index 2f66c1836..000000000 --- a/vendor/github.com/go-playground/validator/v10/baked_in.go +++ /dev/null @@ -1,3046 +0,0 @@ -package validator - -import ( - "bytes" - "context" - "crypto/sha256" - "encoding/hex" - "encoding/json" - "fmt" - "io/fs" - "net" - "net/url" - "os" - "reflect" - "strconv" - "strings" - "sync" - "syscall" - "time" - "unicode/utf8" - - "golang.org/x/crypto/sha3" - "golang.org/x/text/language" - - "github.com/gabriel-vasile/mimetype" - urn "github.com/leodido/go-urn" -) - -// Func accepts a FieldLevel interface for all validation needs. The return -// value should be true when validation succeeds. -type Func func(fl FieldLevel) bool - -// FuncCtx accepts a context.Context and FieldLevel interface for all -// validation needs. The return value should be true when validation succeeds. -type FuncCtx func(ctx context.Context, fl FieldLevel) bool - -// wrapFunc wraps normal Func makes it compatible with FuncCtx -func wrapFunc(fn Func) FuncCtx { - if fn == nil { - return nil // be sure not to wrap a bad function. - } - return func(ctx context.Context, fl FieldLevel) bool { - return fn(fl) - } -} - -var ( - restrictedTags = map[string]struct{}{ - diveTag: {}, - keysTag: {}, - endKeysTag: {}, - structOnlyTag: {}, - omitempty: {}, - omitnil: {}, - skipValidationTag: {}, - utf8HexComma: {}, - utf8Pipe: {}, - noStructLevelTag: {}, - requiredTag: {}, - isdefault: {}, - } - - // bakedInAliases is a default mapping of a single validation tag that - // defines a common or complex set of validation(s) to simplify - // adding validation to structs. - bakedInAliases = map[string]string{ - "iscolor": "hexcolor|rgb|rgba|hsl|hsla", - "country_code": "iso3166_1_alpha2|iso3166_1_alpha3|iso3166_1_alpha_numeric", - "eu_country_code": "iso3166_1_alpha2_eu|iso3166_1_alpha3_eu|iso3166_1_alpha_numeric_eu", - } - - // bakedInValidators is the default map of ValidationFunc - // you can add, remove or even replace items to suite your needs, - // or even disregard and use your own map if so desired. - bakedInValidators = map[string]Func{ - "required": hasValue, - "required_if": requiredIf, - "required_unless": requiredUnless, - "skip_unless": skipUnless, - "required_with": requiredWith, - "required_with_all": requiredWithAll, - "required_without": requiredWithout, - "required_without_all": requiredWithoutAll, - "excluded_if": excludedIf, - "excluded_unless": excludedUnless, - "excluded_with": excludedWith, - "excluded_with_all": excludedWithAll, - "excluded_without": excludedWithout, - "excluded_without_all": excludedWithoutAll, - "isdefault": isDefault, - "len": hasLengthOf, - "min": hasMinOf, - "max": hasMaxOf, - "eq": isEq, - "eq_ignore_case": isEqIgnoreCase, - "ne": isNe, - "ne_ignore_case": isNeIgnoreCase, - "lt": isLt, - "lte": isLte, - "gt": isGt, - "gte": isGte, - "eqfield": isEqField, - "eqcsfield": isEqCrossStructField, - "necsfield": isNeCrossStructField, - "gtcsfield": isGtCrossStructField, - "gtecsfield": isGteCrossStructField, - "ltcsfield": isLtCrossStructField, - "ltecsfield": isLteCrossStructField, - "nefield": isNeField, - "gtefield": isGteField, - "gtfield": isGtField, - "ltefield": isLteField, - "ltfield": isLtField, - "fieldcontains": fieldContains, - "fieldexcludes": fieldExcludes, - "alpha": isAlpha, - "alphanum": isAlphanum, - "alphaunicode": isAlphaUnicode, - "alphanumunicode": isAlphanumUnicode, - "boolean": isBoolean, - "numeric": isNumeric, - "number": isNumber, - "hexadecimal": isHexadecimal, - "hexcolor": isHEXColor, - "rgb": isRGB, - "rgba": isRGBA, - "hsl": isHSL, - "hsla": isHSLA, - "e164": isE164, - "email": isEmail, - "url": isURL, - "http_url": isHttpURL, - "uri": isURI, - "urn_rfc2141": isUrnRFC2141, // RFC 2141 - "file": isFile, - "filepath": isFilePath, - "base32": isBase32, - "base64": isBase64, - "base64url": isBase64URL, - "base64rawurl": isBase64RawURL, - "contains": contains, - "containsany": containsAny, - "containsrune": containsRune, - "excludes": excludes, - "excludesall": excludesAll, - "excludesrune": excludesRune, - "startswith": startsWith, - "endswith": endsWith, - "startsnotwith": startsNotWith, - "endsnotwith": endsNotWith, - "image": isImage, - "isbn": isISBN, - "isbn10": isISBN10, - "isbn13": isISBN13, - "issn": isISSN, - "eth_addr": isEthereumAddress, - "eth_addr_checksum": isEthereumAddressChecksum, - "btc_addr": isBitcoinAddress, - "btc_addr_bech32": isBitcoinBech32Address, - "uuid": isUUID, - "uuid3": isUUID3, - "uuid4": isUUID4, - "uuid5": isUUID5, - "uuid_rfc4122": isUUIDRFC4122, - "uuid3_rfc4122": isUUID3RFC4122, - "uuid4_rfc4122": isUUID4RFC4122, - "uuid5_rfc4122": isUUID5RFC4122, - "ulid": isULID, - "md4": isMD4, - "md5": isMD5, - "sha256": isSHA256, - "sha384": isSHA384, - "sha512": isSHA512, - "ripemd128": isRIPEMD128, - "ripemd160": isRIPEMD160, - "tiger128": isTIGER128, - "tiger160": isTIGER160, - "tiger192": isTIGER192, - "ascii": isASCII, - "printascii": isPrintableASCII, - "multibyte": hasMultiByteCharacter, - "datauri": isDataURI, - "latitude": isLatitude, - "longitude": isLongitude, - "ssn": isSSN, - "ipv4": isIPv4, - "ipv6": isIPv6, - "ip": isIP, - "cidrv4": isCIDRv4, - "cidrv6": isCIDRv6, - "cidr": isCIDR, - "tcp4_addr": isTCP4AddrResolvable, - "tcp6_addr": isTCP6AddrResolvable, - "tcp_addr": isTCPAddrResolvable, - "udp4_addr": isUDP4AddrResolvable, - "udp6_addr": isUDP6AddrResolvable, - "udp_addr": isUDPAddrResolvable, - "ip4_addr": isIP4AddrResolvable, - "ip6_addr": isIP6AddrResolvable, - "ip_addr": isIPAddrResolvable, - "unix_addr": isUnixAddrResolvable, - "mac": isMAC, - "hostname": isHostnameRFC952, // RFC 952 - "hostname_rfc1123": isHostnameRFC1123, // RFC 1123 - "fqdn": isFQDN, - "unique": isUnique, - "oneof": isOneOf, - "oneofci": isOneOfCI, - "html": isHTML, - "html_encoded": isHTMLEncoded, - "url_encoded": isURLEncoded, - "dir": isDir, - "dirpath": isDirPath, - "json": isJSON, - "jwt": isJWT, - "hostname_port": isHostnamePort, - "port": isPort, - "lowercase": isLowercase, - "uppercase": isUppercase, - "datetime": isDatetime, - "timezone": isTimeZone, - "iso3166_1_alpha2": isIso3166Alpha2, - "iso3166_1_alpha2_eu": isIso3166Alpha2EU, - "iso3166_1_alpha3": isIso3166Alpha3, - "iso3166_1_alpha3_eu": isIso3166Alpha3EU, - "iso3166_1_alpha_numeric": isIso3166AlphaNumeric, - "iso3166_1_alpha_numeric_eu": isIso3166AlphaNumericEU, - "iso3166_2": isIso31662, - "iso4217": isIso4217, - "iso4217_numeric": isIso4217Numeric, - "bcp47_language_tag": isBCP47LanguageTag, - "postcode_iso3166_alpha2": isPostcodeByIso3166Alpha2, - "postcode_iso3166_alpha2_field": isPostcodeByIso3166Alpha2Field, - "bic": isIsoBicFormat, - "semver": isSemverFormat, - "dns_rfc1035_label": isDnsRFC1035LabelFormat, - "credit_card": isCreditCard, - "cve": isCveFormat, - "luhn_checksum": hasLuhnChecksum, - "mongodb": isMongoDBObjectId, - "mongodb_connection_string": isMongoDBConnectionString, - "cron": isCron, - "spicedb": isSpiceDB, - } -) - -var ( - oneofValsCache = map[string][]string{} - oneofValsCacheRWLock = sync.RWMutex{} -) - -func parseOneOfParam2(s string) []string { - oneofValsCacheRWLock.RLock() - vals, ok := oneofValsCache[s] - oneofValsCacheRWLock.RUnlock() - if !ok { - oneofValsCacheRWLock.Lock() - vals = splitParamsRegex().FindAllString(s, -1) - for i := 0; i < len(vals); i++ { - vals[i] = strings.Replace(vals[i], "'", "", -1) - } - oneofValsCache[s] = vals - oneofValsCacheRWLock.Unlock() - } - return vals -} - -func isURLEncoded(fl FieldLevel) bool { - return uRLEncodedRegex().MatchString(fl.Field().String()) -} - -func isHTMLEncoded(fl FieldLevel) bool { - return hTMLEncodedRegex().MatchString(fl.Field().String()) -} - -func isHTML(fl FieldLevel) bool { - return hTMLRegex().MatchString(fl.Field().String()) -} - -func isOneOf(fl FieldLevel) bool { - vals := parseOneOfParam2(fl.Param()) - - field := fl.Field() - - var v string - switch field.Kind() { - case reflect.String: - v = field.String() - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - v = strconv.FormatInt(field.Int(), 10) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - v = strconv.FormatUint(field.Uint(), 10) - default: - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - for i := 0; i < len(vals); i++ { - if vals[i] == v { - return true - } - } - return false -} - -// isOneOfCI is the validation function for validating if the current field's value is one of the provided string values (case insensitive). -func isOneOfCI(fl FieldLevel) bool { - vals := parseOneOfParam2(fl.Param()) - field := fl.Field() - - if field.Kind() != reflect.String { - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - v := field.String() - for _, val := range vals { - if strings.EqualFold(val, v) { - return true - } - } - return false -} - -// isUnique is the validation function for validating if each array|slice|map value is unique -func isUnique(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - v := reflect.ValueOf(struct{}{}) - - switch field.Kind() { - case reflect.Slice, reflect.Array: - elem := field.Type().Elem() - if elem.Kind() == reflect.Ptr { - elem = elem.Elem() - } - - if param == "" { - m := reflect.MakeMap(reflect.MapOf(elem, v.Type())) - - for i := 0; i < field.Len(); i++ { - m.SetMapIndex(reflect.Indirect(field.Index(i)), v) - } - return field.Len() == m.Len() - } - - sf, ok := elem.FieldByName(param) - if !ok { - panic(fmt.Sprintf("Bad field name %s", param)) - } - - sfTyp := sf.Type - if sfTyp.Kind() == reflect.Ptr { - sfTyp = sfTyp.Elem() - } - - m := reflect.MakeMap(reflect.MapOf(sfTyp, v.Type())) - var fieldlen int - for i := 0; i < field.Len(); i++ { - key := reflect.Indirect(reflect.Indirect(field.Index(i)).FieldByName(param)) - if key.IsValid() { - fieldlen++ - m.SetMapIndex(key, v) - } - } - return fieldlen == m.Len() - case reflect.Map: - var m reflect.Value - if field.Type().Elem().Kind() == reflect.Ptr { - m = reflect.MakeMap(reflect.MapOf(field.Type().Elem().Elem(), v.Type())) - } else { - m = reflect.MakeMap(reflect.MapOf(field.Type().Elem(), v.Type())) - } - - for _, k := range field.MapKeys() { - m.SetMapIndex(reflect.Indirect(field.MapIndex(k)), v) - } - - return field.Len() == m.Len() - default: - if parent := fl.Parent(); parent.Kind() == reflect.Struct { - uniqueField := parent.FieldByName(param) - if uniqueField == reflect.ValueOf(nil) { - panic(fmt.Sprintf("Bad field name provided %s", param)) - } - - if uniqueField.Kind() != field.Kind() { - panic(fmt.Sprintf("Bad field type %T:%T", field.Interface(), uniqueField.Interface())) - } - - return field.Interface() != uniqueField.Interface() - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } -} - -// isMAC is the validation function for validating if the field's value is a valid MAC address. -func isMAC(fl FieldLevel) bool { - _, err := net.ParseMAC(fl.Field().String()) - - return err == nil -} - -// isCIDRv4 is the validation function for validating if the field's value is a valid v4 CIDR address. -func isCIDRv4(fl FieldLevel) bool { - ip, net, err := net.ParseCIDR(fl.Field().String()) - - return err == nil && ip.To4() != nil && net.IP.Equal(ip) -} - -// isCIDRv6 is the validation function for validating if the field's value is a valid v6 CIDR address. -func isCIDRv6(fl FieldLevel) bool { - ip, _, err := net.ParseCIDR(fl.Field().String()) - - return err == nil && ip.To4() == nil -} - -// isCIDR is the validation function for validating if the field's value is a valid v4 or v6 CIDR address. -func isCIDR(fl FieldLevel) bool { - _, _, err := net.ParseCIDR(fl.Field().String()) - - return err == nil -} - -// isIPv4 is the validation function for validating if a value is a valid v4 IP address. -func isIPv4(fl FieldLevel) bool { - ip := net.ParseIP(fl.Field().String()) - - return ip != nil && ip.To4() != nil -} - -// isIPv6 is the validation function for validating if the field's value is a valid v6 IP address. -func isIPv6(fl FieldLevel) bool { - ip := net.ParseIP(fl.Field().String()) - - return ip != nil && ip.To4() == nil -} - -// isIP is the validation function for validating if the field's value is a valid v4 or v6 IP address. -func isIP(fl FieldLevel) bool { - ip := net.ParseIP(fl.Field().String()) - - return ip != nil -} - -// isSSN is the validation function for validating if the field's value is a valid SSN. -func isSSN(fl FieldLevel) bool { - field := fl.Field() - - if field.Len() != 11 { - return false - } - - return sSNRegex().MatchString(field.String()) -} - -// isLongitude is the validation function for validating if the field's value is a valid longitude coordinate. -func isLongitude(fl FieldLevel) bool { - field := fl.Field() - - var v string - switch field.Kind() { - case reflect.String: - v = field.String() - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - v = strconv.FormatInt(field.Int(), 10) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - v = strconv.FormatUint(field.Uint(), 10) - case reflect.Float32: - v = strconv.FormatFloat(field.Float(), 'f', -1, 32) - case reflect.Float64: - v = strconv.FormatFloat(field.Float(), 'f', -1, 64) - default: - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - - return longitudeRegex().MatchString(v) -} - -// isLatitude is the validation function for validating if the field's value is a valid latitude coordinate. -func isLatitude(fl FieldLevel) bool { - field := fl.Field() - - var v string - switch field.Kind() { - case reflect.String: - v = field.String() - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - v = strconv.FormatInt(field.Int(), 10) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - v = strconv.FormatUint(field.Uint(), 10) - case reflect.Float32: - v = strconv.FormatFloat(field.Float(), 'f', -1, 32) - case reflect.Float64: - v = strconv.FormatFloat(field.Float(), 'f', -1, 64) - default: - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - - return latitudeRegex().MatchString(v) -} - -// isDataURI is the validation function for validating if the field's value is a valid data URI. -func isDataURI(fl FieldLevel) bool { - uri := strings.SplitN(fl.Field().String(), ",", 2) - - if len(uri) != 2 { - return false - } - - if !dataURIRegex().MatchString(uri[0]) { - return false - } - - return base64Regex().MatchString(uri[1]) -} - -// hasMultiByteCharacter is the validation function for validating if the field's value has a multi byte character. -func hasMultiByteCharacter(fl FieldLevel) bool { - field := fl.Field() - - if field.Len() == 0 { - return true - } - - return multibyteRegex().MatchString(field.String()) -} - -// isPrintableASCII is the validation function for validating if the field's value is a valid printable ASCII character. -func isPrintableASCII(fl FieldLevel) bool { - return printableASCIIRegex().MatchString(fl.Field().String()) -} - -// isASCII is the validation function for validating if the field's value is a valid ASCII character. -func isASCII(fl FieldLevel) bool { - return aSCIIRegex().MatchString(fl.Field().String()) -} - -// isUUID5 is the validation function for validating if the field's value is a valid v5 UUID. -func isUUID5(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUID5Regex, fl) -} - -// isUUID4 is the validation function for validating if the field's value is a valid v4 UUID. -func isUUID4(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUID4Regex, fl) -} - -// isUUID3 is the validation function for validating if the field's value is a valid v3 UUID. -func isUUID3(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUID3Regex, fl) -} - -// isUUID is the validation function for validating if the field's value is a valid UUID of any version. -func isUUID(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUIDRegex, fl) -} - -// isUUID5RFC4122 is the validation function for validating if the field's value is a valid RFC4122 v5 UUID. -func isUUID5RFC4122(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUID5RFC4122Regex, fl) -} - -// isUUID4RFC4122 is the validation function for validating if the field's value is a valid RFC4122 v4 UUID. -func isUUID4RFC4122(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUID4RFC4122Regex, fl) -} - -// isUUID3RFC4122 is the validation function for validating if the field's value is a valid RFC4122 v3 UUID. -func isUUID3RFC4122(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUID3RFC4122Regex, fl) -} - -// isUUIDRFC4122 is the validation function for validating if the field's value is a valid RFC4122 UUID of any version. -func isUUIDRFC4122(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uUIDRFC4122Regex, fl) -} - -// isULID is the validation function for validating if the field's value is a valid ULID. -func isULID(fl FieldLevel) bool { - return fieldMatchesRegexByStringerValOrString(uLIDRegex, fl) -} - -// isMD4 is the validation function for validating if the field's value is a valid MD4. -func isMD4(fl FieldLevel) bool { - return md4Regex().MatchString(fl.Field().String()) -} - -// isMD5 is the validation function for validating if the field's value is a valid MD5. -func isMD5(fl FieldLevel) bool { - return md5Regex().MatchString(fl.Field().String()) -} - -// isSHA256 is the validation function for validating if the field's value is a valid SHA256. -func isSHA256(fl FieldLevel) bool { - return sha256Regex().MatchString(fl.Field().String()) -} - -// isSHA384 is the validation function for validating if the field's value is a valid SHA384. -func isSHA384(fl FieldLevel) bool { - return sha384Regex().MatchString(fl.Field().String()) -} - -// isSHA512 is the validation function for validating if the field's value is a valid SHA512. -func isSHA512(fl FieldLevel) bool { - return sha512Regex().MatchString(fl.Field().String()) -} - -// isRIPEMD128 is the validation function for validating if the field's value is a valid PIPEMD128. -func isRIPEMD128(fl FieldLevel) bool { - return ripemd128Regex().MatchString(fl.Field().String()) -} - -// isRIPEMD160 is the validation function for validating if the field's value is a valid PIPEMD160. -func isRIPEMD160(fl FieldLevel) bool { - return ripemd160Regex().MatchString(fl.Field().String()) -} - -// isTIGER128 is the validation function for validating if the field's value is a valid TIGER128. -func isTIGER128(fl FieldLevel) bool { - return tiger128Regex().MatchString(fl.Field().String()) -} - -// isTIGER160 is the validation function for validating if the field's value is a valid TIGER160. -func isTIGER160(fl FieldLevel) bool { - return tiger160Regex().MatchString(fl.Field().String()) -} - -// isTIGER192 is the validation function for validating if the field's value is a valid isTIGER192. -func isTIGER192(fl FieldLevel) bool { - return tiger192Regex().MatchString(fl.Field().String()) -} - -// isISBN is the validation function for validating if the field's value is a valid v10 or v13 ISBN. -func isISBN(fl FieldLevel) bool { - return isISBN10(fl) || isISBN13(fl) -} - -// isISBN13 is the validation function for validating if the field's value is a valid v13 ISBN. -func isISBN13(fl FieldLevel) bool { - s := strings.Replace(strings.Replace(fl.Field().String(), "-", "", 4), " ", "", 4) - - if !iSBN13Regex().MatchString(s) { - return false - } - - var checksum int32 - var i int32 - - factor := []int32{1, 3} - - for i = 0; i < 12; i++ { - checksum += factor[i%2] * int32(s[i]-'0') - } - - return (int32(s[12]-'0'))-((10-(checksum%10))%10) == 0 -} - -// isISBN10 is the validation function for validating if the field's value is a valid v10 ISBN. -func isISBN10(fl FieldLevel) bool { - s := strings.Replace(strings.Replace(fl.Field().String(), "-", "", 3), " ", "", 3) - - if !iSBN10Regex().MatchString(s) { - return false - } - - var checksum int32 - var i int32 - - for i = 0; i < 9; i++ { - checksum += (i + 1) * int32(s[i]-'0') - } - - if s[9] == 'X' { - checksum += 10 * 10 - } else { - checksum += 10 * int32(s[9]-'0') - } - - return checksum%11 == 0 -} - -// isISSN is the validation function for validating if the field's value is a valid ISSN. -func isISSN(fl FieldLevel) bool { - s := fl.Field().String() - - if !iSSNRegex().MatchString(s) { - return false - } - s = strings.ReplaceAll(s, "-", "") - - pos := 8 - checksum := 0 - - for i := 0; i < 7; i++ { - checksum += pos * int(s[i]-'0') - pos-- - } - - if s[7] == 'X' { - checksum += 10 - } else { - checksum += int(s[7] - '0') - } - - return checksum%11 == 0 -} - -// isEthereumAddress is the validation function for validating if the field's value is a valid Ethereum address. -func isEthereumAddress(fl FieldLevel) bool { - address := fl.Field().String() - - return ethAddressRegex().MatchString(address) -} - -// isEthereumAddressChecksum is the validation function for validating if the field's value is a valid checksummed Ethereum address. -func isEthereumAddressChecksum(fl FieldLevel) bool { - address := fl.Field().String() - - if !ethAddressRegex().MatchString(address) { - return false - } - // Checksum validation. Reference: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-55.md - address = address[2:] // Skip "0x" prefix. - h := sha3.NewLegacyKeccak256() - // hash.Hash's io.Writer implementation says it never returns an error. https://golang.org/pkg/hash/#Hash - _, _ = h.Write([]byte(strings.ToLower(address))) - hash := hex.EncodeToString(h.Sum(nil)) - - for i := 0; i < len(address); i++ { - if address[i] <= '9' { // Skip 0-9 digits: they don't have upper/lower-case. - continue - } - if hash[i] > '7' && address[i] >= 'a' || hash[i] <= '7' && address[i] <= 'F' { - return false - } - } - - return true -} - -// isBitcoinAddress is the validation function for validating if the field's value is a valid btc address -func isBitcoinAddress(fl FieldLevel) bool { - address := fl.Field().String() - - if !btcAddressRegex().MatchString(address) { - return false - } - - alphabet := []byte("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz") - - decode := [25]byte{} - - for _, n := range []byte(address) { - d := bytes.IndexByte(alphabet, n) - - for i := 24; i >= 0; i-- { - d += 58 * int(decode[i]) - decode[i] = byte(d % 256) - d /= 256 - } - } - - h := sha256.New() - _, _ = h.Write(decode[:21]) - d := h.Sum([]byte{}) - h = sha256.New() - _, _ = h.Write(d) - - validchecksum := [4]byte{} - computedchecksum := [4]byte{} - - copy(computedchecksum[:], h.Sum(d[:0])) - copy(validchecksum[:], decode[21:]) - - return validchecksum == computedchecksum -} - -// isBitcoinBech32Address is the validation function for validating if the field's value is a valid bech32 btc address -func isBitcoinBech32Address(fl FieldLevel) bool { - address := fl.Field().String() - - if !btcLowerAddressRegexBech32().MatchString(address) && !btcUpperAddressRegexBech32().MatchString(address) { - return false - } - - am := len(address) % 8 - - if am == 0 || am == 3 || am == 5 { - return false - } - - address = strings.ToLower(address) - - alphabet := "qpzry9x8gf2tvdw0s3jn54khce6mua7l" - - hr := []int{3, 3, 0, 2, 3} // the human readable part will always be bc - addr := address[3:] - dp := make([]int, 0, len(addr)) - - for _, c := range addr { - dp = append(dp, strings.IndexRune(alphabet, c)) - } - - ver := dp[0] - - if ver < 0 || ver > 16 { - return false - } - - if ver == 0 { - if len(address) != 42 && len(address) != 62 { - return false - } - } - - values := append(hr, dp...) - - GEN := []int{0x3b6a57b2, 0x26508e6d, 0x1ea119fa, 0x3d4233dd, 0x2a1462b3} - - p := 1 - - for _, v := range values { - b := p >> 25 - p = (p&0x1ffffff)<<5 ^ v - - for i := 0; i < 5; i++ { - if (b>>uint(i))&1 == 1 { - p ^= GEN[i] - } - } - } - - if p != 1 { - return false - } - - b := uint(0) - acc := 0 - mv := (1 << 5) - 1 - var sw []int - - for _, v := range dp[1 : len(dp)-6] { - acc = (acc << 5) | v - b += 5 - for b >= 8 { - b -= 8 - sw = append(sw, (acc>>b)&mv) - } - } - - if len(sw) < 2 || len(sw) > 40 { - return false - } - - return true -} - -// excludesRune is the validation function for validating that the field's value does not contain the rune specified within the param. -func excludesRune(fl FieldLevel) bool { - return !containsRune(fl) -} - -// excludesAll is the validation function for validating that the field's value does not contain any of the characters specified within the param. -func excludesAll(fl FieldLevel) bool { - return !containsAny(fl) -} - -// excludes is the validation function for validating that the field's value does not contain the text specified within the param. -func excludes(fl FieldLevel) bool { - return !contains(fl) -} - -// containsRune is the validation function for validating that the field's value contains the rune specified within the param. -func containsRune(fl FieldLevel) bool { - r, _ := utf8.DecodeRuneInString(fl.Param()) - - return strings.ContainsRune(fl.Field().String(), r) -} - -// containsAny is the validation function for validating that the field's value contains any of the characters specified within the param. -func containsAny(fl FieldLevel) bool { - return strings.ContainsAny(fl.Field().String(), fl.Param()) -} - -// contains is the validation function for validating that the field's value contains the text specified within the param. -func contains(fl FieldLevel) bool { - return strings.Contains(fl.Field().String(), fl.Param()) -} - -// startsWith is the validation function for validating that the field's value starts with the text specified within the param. -func startsWith(fl FieldLevel) bool { - return strings.HasPrefix(fl.Field().String(), fl.Param()) -} - -// endsWith is the validation function for validating that the field's value ends with the text specified within the param. -func endsWith(fl FieldLevel) bool { - return strings.HasSuffix(fl.Field().String(), fl.Param()) -} - -// startsNotWith is the validation function for validating that the field's value does not start with the text specified within the param. -func startsNotWith(fl FieldLevel) bool { - return !startsWith(fl) -} - -// endsNotWith is the validation function for validating that the field's value does not end with the text specified within the param. -func endsNotWith(fl FieldLevel) bool { - return !endsWith(fl) -} - -// fieldContains is the validation function for validating if the current field's value contains the field specified by the param's value. -func fieldContains(fl FieldLevel) bool { - field := fl.Field() - - currentField, _, ok := fl.GetStructFieldOK() - - if !ok { - return false - } - - return strings.Contains(field.String(), currentField.String()) -} - -// fieldExcludes is the validation function for validating if the current field's value excludes the field specified by the param's value. -func fieldExcludes(fl FieldLevel) bool { - field := fl.Field() - - currentField, _, ok := fl.GetStructFieldOK() - if !ok { - return true - } - - return !strings.Contains(field.String(), currentField.String()) -} - -// isNeField is the validation function for validating if the current field's value is not equal to the field specified by the param's value. -func isNeField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - currentField, currentKind, ok := fl.GetStructFieldOK() - - if !ok || currentKind != kind { - return true - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return field.Int() != currentField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return field.Uint() != currentField.Uint() - - case reflect.Float32, reflect.Float64: - return field.Float() != currentField.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(field.Len()) != int64(currentField.Len()) - - case reflect.Bool: - return field.Bool() != currentField.Bool() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && currentField.Type().ConvertibleTo(timeType) { - - t := currentField.Interface().(time.Time) - fieldTime := field.Interface().(time.Time) - - return !fieldTime.Equal(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != currentField.Type() { - return true - } - } - - // default reflect.String: - return field.String() != currentField.String() -} - -// isNe is the validation function for validating that the field's value does not equal the provided param value. -func isNe(fl FieldLevel) bool { - return !isEq(fl) -} - -// isNeIgnoreCase is the validation function for validating that the field's string value does not equal the -// provided param value. The comparison is case-insensitive -func isNeIgnoreCase(fl FieldLevel) bool { - return !isEqIgnoreCase(fl) -} - -// isLteCrossStructField is the validation function for validating if the current field's value is less than or equal to the field, within a separate struct, specified by the param's value. -func isLteCrossStructField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - topField, topKind, ok := fl.GetStructFieldOK() - if !ok || topKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return field.Int() <= topField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return field.Uint() <= topField.Uint() - - case reflect.Float32, reflect.Float64: - return field.Float() <= topField.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(field.Len()) <= int64(topField.Len()) - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && topField.Type().ConvertibleTo(timeType) { - - fieldTime := field.Convert(timeType).Interface().(time.Time) - topTime := topField.Convert(timeType).Interface().(time.Time) - - return fieldTime.Before(topTime) || fieldTime.Equal(topTime) - } - - // Not Same underlying type i.e. struct and time - if fieldType != topField.Type() { - return false - } - } - - // default reflect.String: - return field.String() <= topField.String() -} - -// isLtCrossStructField is the validation function for validating if the current field's value is less than the field, within a separate struct, specified by the param's value. -// NOTE: This is exposed for use within your own custom functions and not intended to be called directly. -func isLtCrossStructField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - topField, topKind, ok := fl.GetStructFieldOK() - if !ok || topKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return field.Int() < topField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return field.Uint() < topField.Uint() - - case reflect.Float32, reflect.Float64: - return field.Float() < topField.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(field.Len()) < int64(topField.Len()) - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && topField.Type().ConvertibleTo(timeType) { - - fieldTime := field.Convert(timeType).Interface().(time.Time) - topTime := topField.Convert(timeType).Interface().(time.Time) - - return fieldTime.Before(topTime) - } - - // Not Same underlying type i.e. struct and time - if fieldType != topField.Type() { - return false - } - } - - // default reflect.String: - return field.String() < topField.String() -} - -// isGteCrossStructField is the validation function for validating if the current field's value is greater than or equal to the field, within a separate struct, specified by the param's value. -func isGteCrossStructField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - topField, topKind, ok := fl.GetStructFieldOK() - if !ok || topKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return field.Int() >= topField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return field.Uint() >= topField.Uint() - - case reflect.Float32, reflect.Float64: - return field.Float() >= topField.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(field.Len()) >= int64(topField.Len()) - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && topField.Type().ConvertibleTo(timeType) { - - fieldTime := field.Convert(timeType).Interface().(time.Time) - topTime := topField.Convert(timeType).Interface().(time.Time) - - return fieldTime.After(topTime) || fieldTime.Equal(topTime) - } - - // Not Same underlying type i.e. struct and time - if fieldType != topField.Type() { - return false - } - } - - // default reflect.String: - return field.String() >= topField.String() -} - -// isGtCrossStructField is the validation function for validating if the current field's value is greater than the field, within a separate struct, specified by the param's value. -func isGtCrossStructField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - topField, topKind, ok := fl.GetStructFieldOK() - if !ok || topKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return field.Int() > topField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return field.Uint() > topField.Uint() - - case reflect.Float32, reflect.Float64: - return field.Float() > topField.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(field.Len()) > int64(topField.Len()) - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && topField.Type().ConvertibleTo(timeType) { - - fieldTime := field.Convert(timeType).Interface().(time.Time) - topTime := topField.Convert(timeType).Interface().(time.Time) - - return fieldTime.After(topTime) - } - - // Not Same underlying type i.e. struct and time - if fieldType != topField.Type() { - return false - } - } - - // default reflect.String: - return field.String() > topField.String() -} - -// isNeCrossStructField is the validation function for validating that the current field's value is not equal to the field, within a separate struct, specified by the param's value. -func isNeCrossStructField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - topField, currentKind, ok := fl.GetStructFieldOK() - if !ok || currentKind != kind { - return true - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return topField.Int() != field.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return topField.Uint() != field.Uint() - - case reflect.Float32, reflect.Float64: - return topField.Float() != field.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(topField.Len()) != int64(field.Len()) - - case reflect.Bool: - return topField.Bool() != field.Bool() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && topField.Type().ConvertibleTo(timeType) { - - t := field.Convert(timeType).Interface().(time.Time) - fieldTime := topField.Convert(timeType).Interface().(time.Time) - - return !fieldTime.Equal(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != topField.Type() { - return true - } - } - - // default reflect.String: - return topField.String() != field.String() -} - -// isEqCrossStructField is the validation function for validating that the current field's value is equal to the field, within a separate struct, specified by the param's value. -func isEqCrossStructField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - topField, topKind, ok := fl.GetStructFieldOK() - if !ok || topKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return topField.Int() == field.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return topField.Uint() == field.Uint() - - case reflect.Float32, reflect.Float64: - return topField.Float() == field.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(topField.Len()) == int64(field.Len()) - - case reflect.Bool: - return topField.Bool() == field.Bool() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && topField.Type().ConvertibleTo(timeType) { - - t := field.Convert(timeType).Interface().(time.Time) - fieldTime := topField.Convert(timeType).Interface().(time.Time) - - return fieldTime.Equal(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != topField.Type() { - return false - } - } - - // default reflect.String: - return topField.String() == field.String() -} - -// isEqField is the validation function for validating if the current field's value is equal to the field specified by the param's value. -func isEqField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - currentField, currentKind, ok := fl.GetStructFieldOK() - if !ok || currentKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return field.Int() == currentField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return field.Uint() == currentField.Uint() - - case reflect.Float32, reflect.Float64: - return field.Float() == currentField.Float() - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(field.Len()) == int64(currentField.Len()) - - case reflect.Bool: - return field.Bool() == currentField.Bool() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && currentField.Type().ConvertibleTo(timeType) { - - t := currentField.Convert(timeType).Interface().(time.Time) - fieldTime := field.Convert(timeType).Interface().(time.Time) - - return fieldTime.Equal(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != currentField.Type() { - return false - } - } - - // default reflect.String: - return field.String() == currentField.String() -} - -// isEq is the validation function for validating if the current field's value is equal to the param's value. -func isEq(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - switch field.Kind() { - - case reflect.String: - return field.String() == param - - case reflect.Slice, reflect.Map, reflect.Array: - p := asInt(param) - - return int64(field.Len()) == p - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - p := asIntFromType(field.Type(), param) - - return field.Int() == p - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - p := asUint(param) - - return field.Uint() == p - - case reflect.Float32: - p := asFloat32(param) - - return field.Float() == p - - case reflect.Float64: - p := asFloat64(param) - - return field.Float() == p - - case reflect.Bool: - p := asBool(param) - - return field.Bool() == p - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isEqIgnoreCase is the validation function for validating if the current field's string value is -// equal to the param's value. -// The comparison is case-insensitive. -func isEqIgnoreCase(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - switch field.Kind() { - - case reflect.String: - return strings.EqualFold(field.String(), param) - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isPostcodeByIso3166Alpha2 validates by value which is country code in iso 3166 alpha 2 -// example: `postcode_iso3166_alpha2=US` -func isPostcodeByIso3166Alpha2(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - postcodeRegexInit.Do(initPostcodes) - reg, found := postCodeRegexDict[param] - if !found { - return false - } - - return reg.MatchString(field.String()) -} - -// isPostcodeByIso3166Alpha2Field validates by field which represents for a value of country code in iso 3166 alpha 2 -// example: `postcode_iso3166_alpha2_field=CountryCode` -func isPostcodeByIso3166Alpha2Field(fl FieldLevel) bool { - field := fl.Field() - params := parseOneOfParam2(fl.Param()) - - if len(params) != 1 { - return false - } - - currentField, kind, _, found := fl.GetStructFieldOKAdvanced2(fl.Parent(), params[0]) - if !found { - return false - } - - if kind != reflect.String { - panic(fmt.Sprintf("Bad field type %T", currentField.Interface())) - } - - reg, found := postCodeRegexDict[currentField.String()] - if !found { - return false - } - - return reg.MatchString(field.String()) -} - -// isBase32 is the validation function for validating if the current field's value is a valid base 32. -func isBase32(fl FieldLevel) bool { - return base32Regex().MatchString(fl.Field().String()) -} - -// isBase64 is the validation function for validating if the current field's value is a valid base 64. -func isBase64(fl FieldLevel) bool { - return base64Regex().MatchString(fl.Field().String()) -} - -// isBase64URL is the validation function for validating if the current field's value is a valid base64 URL safe string. -func isBase64URL(fl FieldLevel) bool { - return base64URLRegex().MatchString(fl.Field().String()) -} - -// isBase64RawURL is the validation function for validating if the current field's value is a valid base64 URL safe string without '=' padding. -func isBase64RawURL(fl FieldLevel) bool { - return base64RawURLRegex().MatchString(fl.Field().String()) -} - -// isURI is the validation function for validating if the current field's value is a valid URI. -func isURI(fl FieldLevel) bool { - field := fl.Field() - - switch field.Kind() { - case reflect.String: - - s := field.String() - - // checks needed as of Go 1.6 because of change https://github.com/golang/go/commit/617c93ce740c3c3cc28cdd1a0d712be183d0b328#diff-6c2d018290e298803c0c9419d8739885L195 - // emulate browser and strip the '#' suffix prior to validation. see issue-#237 - if i := strings.Index(s, "#"); i > -1 { - s = s[:i] - } - - if len(s) == 0 { - return false - } - - _, err := url.ParseRequestURI(s) - - return err == nil - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isFileURL is the helper function for validating if the `path` valid file URL as per RFC8089 -func isFileURL(path string) bool { - if !strings.HasPrefix(path, "file:/") { - return false - } - _, err := url.ParseRequestURI(path) - return err == nil -} - -// isURL is the validation function for validating if the current field's value is a valid URL. -func isURL(fl FieldLevel) bool { - field := fl.Field() - - switch field.Kind() { - case reflect.String: - - s := strings.ToLower(field.String()) - - if len(s) == 0 { - return false - } - - if isFileURL(s) { - return true - } - - url, err := url.Parse(s) - if err != nil || url.Scheme == "" { - return false - } - - if url.Host == "" && url.Fragment == "" && url.Opaque == "" { - return false - } - - return true - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isHttpURL is the validation function for validating if the current field's value is a valid HTTP(s) URL. -func isHttpURL(fl FieldLevel) bool { - if !isURL(fl) { - return false - } - - field := fl.Field() - switch field.Kind() { - case reflect.String: - - s := strings.ToLower(field.String()) - - url, err := url.Parse(s) - if err != nil || url.Host == "" { - return false - } - - return url.Scheme == "http" || url.Scheme == "https" - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isUrnRFC2141 is the validation function for validating if the current field's value is a valid URN as per RFC 2141. -func isUrnRFC2141(fl FieldLevel) bool { - field := fl.Field() - - switch field.Kind() { - case reflect.String: - - str := field.String() - - _, match := urn.Parse([]byte(str)) - - return match - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isFile is the validation function for validating if the current field's value is a valid existing file path. -func isFile(fl FieldLevel) bool { - field := fl.Field() - - switch field.Kind() { - case reflect.String: - fileInfo, err := os.Stat(field.String()) - if err != nil { - return false - } - - return !fileInfo.IsDir() - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isImage is the validation function for validating if the current field's value contains the path to a valid image file -func isImage(fl FieldLevel) bool { - mimetypes := map[string]bool{ - "image/bmp": true, - "image/cis-cod": true, - "image/gif": true, - "image/ief": true, - "image/jpeg": true, - "image/jp2": true, - "image/jpx": true, - "image/jpm": true, - "image/pipeg": true, - "image/png": true, - "image/svg+xml": true, - "image/tiff": true, - "image/webp": true, - "image/x-cmu-raster": true, - "image/x-cmx": true, - "image/x-icon": true, - "image/x-portable-anymap": true, - "image/x-portable-bitmap": true, - "image/x-portable-graymap": true, - "image/x-portable-pixmap": true, - "image/x-rgb": true, - "image/x-xbitmap": true, - "image/x-xpixmap": true, - "image/x-xwindowdump": true, - } - field := fl.Field() - - switch field.Kind() { - case reflect.String: - filePath := field.String() - fileInfo, err := os.Stat(filePath) - - if err != nil { - return false - } - - if fileInfo.IsDir() { - return false - } - - file, err := os.Open(filePath) - if err != nil { - return false - } - defer file.Close() - - mime, err := mimetype.DetectReader(file) - if err != nil { - return false - } - - if _, ok := mimetypes[mime.String()]; ok { - return true - } - } - return false -} - -// isFilePath is the validation function for validating if the current field's value is a valid file path. -func isFilePath(fl FieldLevel) bool { - - var exists bool - var err error - - field := fl.Field() - - // Not valid if it is a directory. - if isDir(fl) { - return false - } - // If it exists, it obviously is valid. - // This is done first to avoid code duplication and unnecessary additional logic. - if exists = isFile(fl); exists { - return true - } - - // It does not exist but may still be a valid filepath. - switch field.Kind() { - case reflect.String: - // Every OS allows for whitespace, but none - // let you use a file with no filename (to my knowledge). - // Unless you're dealing with raw inodes, but I digress. - if strings.TrimSpace(field.String()) == "" { - return false - } - // We make sure it isn't a directory. - if strings.HasSuffix(field.String(), string(os.PathSeparator)) { - return false - } - if _, err = os.Stat(field.String()); err != nil { - switch t := err.(type) { - case *fs.PathError: - if t.Err == syscall.EINVAL { - // It's definitely an invalid character in the filepath. - return false - } - // It could be a permission error, a does-not-exist error, etc. - // Out-of-scope for this validation, though. - return true - default: - // Something went *seriously* wrong. - /* - Per https://pkg.go.dev/os#Stat: - "If there is an error, it will be of type *PathError." - */ - panic(err) - } - } - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isE164 is the validation function for validating if the current field's value is a valid e.164 formatted phone number. -func isE164(fl FieldLevel) bool { - return e164Regex().MatchString(fl.Field().String()) -} - -// isEmail is the validation function for validating if the current field's value is a valid email address. -func isEmail(fl FieldLevel) bool { - return emailRegex().MatchString(fl.Field().String()) -} - -// isHSLA is the validation function for validating if the current field's value is a valid HSLA color. -func isHSLA(fl FieldLevel) bool { - return hslaRegex().MatchString(fl.Field().String()) -} - -// isHSL is the validation function for validating if the current field's value is a valid HSL color. -func isHSL(fl FieldLevel) bool { - return hslRegex().MatchString(fl.Field().String()) -} - -// isRGBA is the validation function for validating if the current field's value is a valid RGBA color. -func isRGBA(fl FieldLevel) bool { - return rgbaRegex().MatchString(fl.Field().String()) -} - -// isRGB is the validation function for validating if the current field's value is a valid RGB color. -func isRGB(fl FieldLevel) bool { - return rgbRegex().MatchString(fl.Field().String()) -} - -// isHEXColor is the validation function for validating if the current field's value is a valid HEX color. -func isHEXColor(fl FieldLevel) bool { - return hexColorRegex().MatchString(fl.Field().String()) -} - -// isHexadecimal is the validation function for validating if the current field's value is a valid hexadecimal. -func isHexadecimal(fl FieldLevel) bool { - return hexadecimalRegex().MatchString(fl.Field().String()) -} - -// isNumber is the validation function for validating if the current field's value is a valid number. -func isNumber(fl FieldLevel) bool { - switch fl.Field().Kind() { - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr, reflect.Float32, reflect.Float64: - return true - default: - return numberRegex().MatchString(fl.Field().String()) - } -} - -// isNumeric is the validation function for validating if the current field's value is a valid numeric value. -func isNumeric(fl FieldLevel) bool { - switch fl.Field().Kind() { - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr, reflect.Float32, reflect.Float64: - return true - default: - return numericRegex().MatchString(fl.Field().String()) - } -} - -// isAlphanum is the validation function for validating if the current field's value is a valid alphanumeric value. -func isAlphanum(fl FieldLevel) bool { - return alphaNumericRegex().MatchString(fl.Field().String()) -} - -// isAlpha is the validation function for validating if the current field's value is a valid alpha value. -func isAlpha(fl FieldLevel) bool { - return alphaRegex().MatchString(fl.Field().String()) -} - -// isAlphanumUnicode is the validation function for validating if the current field's value is a valid alphanumeric unicode value. -func isAlphanumUnicode(fl FieldLevel) bool { - return alphaUnicodeNumericRegex().MatchString(fl.Field().String()) -} - -// isAlphaUnicode is the validation function for validating if the current field's value is a valid alpha unicode value. -func isAlphaUnicode(fl FieldLevel) bool { - return alphaUnicodeRegex().MatchString(fl.Field().String()) -} - -// isBoolean is the validation function for validating if the current field's value is a valid boolean value or can be safely converted to a boolean value. -func isBoolean(fl FieldLevel) bool { - switch fl.Field().Kind() { - case reflect.Bool: - return true - default: - _, err := strconv.ParseBool(fl.Field().String()) - return err == nil - } -} - -// isDefault is the opposite of required aka hasValue -func isDefault(fl FieldLevel) bool { - return !hasValue(fl) -} - -// hasValue is the validation function for validating if the current field's value is not the default static value. -func hasValue(fl FieldLevel) bool { - field := fl.Field() - switch field.Kind() { - case reflect.Slice, reflect.Map, reflect.Ptr, reflect.Interface, reflect.Chan, reflect.Func: - return !field.IsNil() - default: - if fl.(*validate).fldIsPointer && field.Interface() != nil { - return true - } - return field.IsValid() && !field.IsZero() - } -} - -// requireCheckFieldKind is a func for check field kind -func requireCheckFieldKind(fl FieldLevel, param string, defaultNotFoundValue bool) bool { - field := fl.Field() - kind := field.Kind() - var nullable, found bool - if len(param) > 0 { - field, kind, nullable, found = fl.GetStructFieldOKAdvanced2(fl.Parent(), param) - if !found { - return defaultNotFoundValue - } - } - switch kind { - case reflect.Invalid: - return defaultNotFoundValue - case reflect.Slice, reflect.Map, reflect.Ptr, reflect.Interface, reflect.Chan, reflect.Func: - return field.IsNil() - default: - if nullable && field.Interface() != nil { - return false - } - return field.IsValid() && field.IsZero() - } -} - -// requireCheckFieldValue is a func for check field value -func requireCheckFieldValue( - fl FieldLevel, param string, value string, defaultNotFoundValue bool, -) bool { - field, kind, _, found := fl.GetStructFieldOKAdvanced2(fl.Parent(), param) - if !found { - return defaultNotFoundValue - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return field.Int() == asInt(value) - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return field.Uint() == asUint(value) - - case reflect.Float32: - return field.Float() == asFloat32(value) - - case reflect.Float64: - return field.Float() == asFloat64(value) - - case reflect.Slice, reflect.Map, reflect.Array: - return int64(field.Len()) == asInt(value) - - case reflect.Bool: - return field.Bool() == (value == "true") - - case reflect.Ptr: - if field.IsNil() { - return value == "nil" - } - // Handle non-nil pointers - return requireCheckFieldValue(fl, param, value, defaultNotFoundValue) - } - - // default reflect.String: - return field.String() == value -} - -// requiredIf is the validation function -// The field under validation must be present and not empty only if all the other specified fields are equal to the value following with the specified field. -func requiredIf(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - if len(params)%2 != 0 { - panic(fmt.Sprintf("Bad param number for required_if %s", fl.FieldName())) - } - for i := 0; i < len(params); i += 2 { - if !requireCheckFieldValue(fl, params[i], params[i+1], false) { - return true - } - } - return hasValue(fl) -} - -// excludedIf is the validation function -// The field under validation must not be present or is empty only if all the other specified fields are equal to the value following with the specified field. -func excludedIf(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - if len(params)%2 != 0 { - panic(fmt.Sprintf("Bad param number for excluded_if %s", fl.FieldName())) - } - - for i := 0; i < len(params); i += 2 { - if !requireCheckFieldValue(fl, params[i], params[i+1], false) { - return true - } - } - return !hasValue(fl) -} - -// requiredUnless is the validation function -// The field under validation must be present and not empty only unless all the other specified fields are equal to the value following with the specified field. -func requiredUnless(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - if len(params)%2 != 0 { - panic(fmt.Sprintf("Bad param number for required_unless %s", fl.FieldName())) - } - - for i := 0; i < len(params); i += 2 { - if requireCheckFieldValue(fl, params[i], params[i+1], false) { - return true - } - } - return hasValue(fl) -} - -// skipUnless is the validation function -// The field under validation must be present and not empty only unless all the other specified fields are equal to the value following with the specified field. -func skipUnless(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - if len(params)%2 != 0 { - panic(fmt.Sprintf("Bad param number for skip_unless %s", fl.FieldName())) - } - for i := 0; i < len(params); i += 2 { - if !requireCheckFieldValue(fl, params[i], params[i+1], false) { - return true - } - } - return hasValue(fl) -} - -// excludedUnless is the validation function -// The field under validation must not be present or is empty unless all the other specified fields are equal to the value following with the specified field. -func excludedUnless(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - if len(params)%2 != 0 { - panic(fmt.Sprintf("Bad param number for excluded_unless %s", fl.FieldName())) - } - for i := 0; i < len(params); i += 2 { - if !requireCheckFieldValue(fl, params[i], params[i+1], false) { - return !hasValue(fl) - } - } - return true -} - -// excludedWith is the validation function -// The field under validation must not be present or is empty if any of the other specified fields are present. -func excludedWith(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - for _, param := range params { - if !requireCheckFieldKind(fl, param, true) { - return !hasValue(fl) - } - } - return true -} - -// requiredWith is the validation function -// The field under validation must be present and not empty only if any of the other specified fields are present. -func requiredWith(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - for _, param := range params { - if !requireCheckFieldKind(fl, param, true) { - return hasValue(fl) - } - } - return true -} - -// excludedWithAll is the validation function -// The field under validation must not be present or is empty if all of the other specified fields are present. -func excludedWithAll(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - for _, param := range params { - if requireCheckFieldKind(fl, param, true) { - return true - } - } - return !hasValue(fl) -} - -// requiredWithAll is the validation function -// The field under validation must be present and not empty only if all of the other specified fields are present. -func requiredWithAll(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - for _, param := range params { - if requireCheckFieldKind(fl, param, true) { - return true - } - } - return hasValue(fl) -} - -// excludedWithout is the validation function -// The field under validation must not be present or is empty when any of the other specified fields are not present. -func excludedWithout(fl FieldLevel) bool { - if requireCheckFieldKind(fl, strings.TrimSpace(fl.Param()), true) { - return !hasValue(fl) - } - return true -} - -// requiredWithout is the validation function -// The field under validation must be present and not empty only when any of the other specified fields are not present. -func requiredWithout(fl FieldLevel) bool { - if requireCheckFieldKind(fl, strings.TrimSpace(fl.Param()), true) { - return hasValue(fl) - } - return true -} - -// excludedWithoutAll is the validation function -// The field under validation must not be present or is empty when all of the other specified fields are not present. -func excludedWithoutAll(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - for _, param := range params { - if !requireCheckFieldKind(fl, param, true) { - return true - } - } - return !hasValue(fl) -} - -// requiredWithoutAll is the validation function -// The field under validation must be present and not empty only when all of the other specified fields are not present. -func requiredWithoutAll(fl FieldLevel) bool { - params := parseOneOfParam2(fl.Param()) - for _, param := range params { - if !requireCheckFieldKind(fl, param, true) { - return true - } - } - return hasValue(fl) -} - -// isGteField is the validation function for validating if the current field's value is greater than or equal to the field specified by the param's value. -func isGteField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - currentField, currentKind, ok := fl.GetStructFieldOK() - if !ok || currentKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - - return field.Int() >= currentField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - - return field.Uint() >= currentField.Uint() - - case reflect.Float32, reflect.Float64: - - return field.Float() >= currentField.Float() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && currentField.Type().ConvertibleTo(timeType) { - - t := currentField.Convert(timeType).Interface().(time.Time) - fieldTime := field.Convert(timeType).Interface().(time.Time) - - return fieldTime.After(t) || fieldTime.Equal(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != currentField.Type() { - return false - } - } - - // default reflect.String - return len(field.String()) >= len(currentField.String()) -} - -// isGtField is the validation function for validating if the current field's value is greater than the field specified by the param's value. -func isGtField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - currentField, currentKind, ok := fl.GetStructFieldOK() - if !ok || currentKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - - return field.Int() > currentField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - - return field.Uint() > currentField.Uint() - - case reflect.Float32, reflect.Float64: - - return field.Float() > currentField.Float() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && currentField.Type().ConvertibleTo(timeType) { - - t := currentField.Convert(timeType).Interface().(time.Time) - fieldTime := field.Convert(timeType).Interface().(time.Time) - - return fieldTime.After(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != currentField.Type() { - return false - } - } - - // default reflect.String - return len(field.String()) > len(currentField.String()) -} - -// isGte is the validation function for validating if the current field's value is greater than or equal to the param's value. -func isGte(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - switch field.Kind() { - - case reflect.String: - p := asInt(param) - - return int64(utf8.RuneCountInString(field.String())) >= p - - case reflect.Slice, reflect.Map, reflect.Array: - p := asInt(param) - - return int64(field.Len()) >= p - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - p := asIntFromType(field.Type(), param) - - return field.Int() >= p - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - p := asUint(param) - - return field.Uint() >= p - - case reflect.Float32: - p := asFloat32(param) - - return field.Float() >= p - - case reflect.Float64: - p := asFloat64(param) - - return field.Float() >= p - - case reflect.Struct: - - if field.Type().ConvertibleTo(timeType) { - - now := time.Now().UTC() - t := field.Convert(timeType).Interface().(time.Time) - - return t.After(now) || t.Equal(now) - } - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isGt is the validation function for validating if the current field's value is greater than the param's value. -func isGt(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - switch field.Kind() { - - case reflect.String: - p := asInt(param) - - return int64(utf8.RuneCountInString(field.String())) > p - - case reflect.Slice, reflect.Map, reflect.Array: - p := asInt(param) - - return int64(field.Len()) > p - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - p := asIntFromType(field.Type(), param) - - return field.Int() > p - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - p := asUint(param) - - return field.Uint() > p - - case reflect.Float32: - p := asFloat32(param) - - return field.Float() > p - - case reflect.Float64: - p := asFloat64(param) - - return field.Float() > p - - case reflect.Struct: - - if field.Type().ConvertibleTo(timeType) { - - return field.Convert(timeType).Interface().(time.Time).After(time.Now().UTC()) - } - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// hasLengthOf is the validation function for validating if the current field's value is equal to the param's value. -func hasLengthOf(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - switch field.Kind() { - - case reflect.String: - p := asInt(param) - - return int64(utf8.RuneCountInString(field.String())) == p - - case reflect.Slice, reflect.Map, reflect.Array: - p := asInt(param) - - return int64(field.Len()) == p - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - p := asIntFromType(field.Type(), param) - - return field.Int() == p - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - p := asUint(param) - - return field.Uint() == p - - case reflect.Float32: - p := asFloat32(param) - - return field.Float() == p - - case reflect.Float64: - p := asFloat64(param) - - return field.Float() == p - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// hasMinOf is the validation function for validating if the current field's value is greater than or equal to the param's value. -func hasMinOf(fl FieldLevel) bool { - return isGte(fl) -} - -// isLteField is the validation function for validating if the current field's value is less than or equal to the field specified by the param's value. -func isLteField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - currentField, currentKind, ok := fl.GetStructFieldOK() - if !ok || currentKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - - return field.Int() <= currentField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - - return field.Uint() <= currentField.Uint() - - case reflect.Float32, reflect.Float64: - - return field.Float() <= currentField.Float() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && currentField.Type().ConvertibleTo(timeType) { - - t := currentField.Convert(timeType).Interface().(time.Time) - fieldTime := field.Convert(timeType).Interface().(time.Time) - - return fieldTime.Before(t) || fieldTime.Equal(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != currentField.Type() { - return false - } - } - - // default reflect.String - return len(field.String()) <= len(currentField.String()) -} - -// isLtField is the validation function for validating if the current field's value is less than the field specified by the param's value. -func isLtField(fl FieldLevel) bool { - field := fl.Field() - kind := field.Kind() - - currentField, currentKind, ok := fl.GetStructFieldOK() - if !ok || currentKind != kind { - return false - } - - switch kind { - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - - return field.Int() < currentField.Int() - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - - return field.Uint() < currentField.Uint() - - case reflect.Float32, reflect.Float64: - - return field.Float() < currentField.Float() - - case reflect.Struct: - - fieldType := field.Type() - - if fieldType.ConvertibleTo(timeType) && currentField.Type().ConvertibleTo(timeType) { - - t := currentField.Convert(timeType).Interface().(time.Time) - fieldTime := field.Convert(timeType).Interface().(time.Time) - - return fieldTime.Before(t) - } - - // Not Same underlying type i.e. struct and time - if fieldType != currentField.Type() { - return false - } - } - - // default reflect.String - return len(field.String()) < len(currentField.String()) -} - -// isLte is the validation function for validating if the current field's value is less than or equal to the param's value. -func isLte(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - switch field.Kind() { - - case reflect.String: - p := asInt(param) - - return int64(utf8.RuneCountInString(field.String())) <= p - - case reflect.Slice, reflect.Map, reflect.Array: - p := asInt(param) - - return int64(field.Len()) <= p - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - p := asIntFromType(field.Type(), param) - - return field.Int() <= p - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - p := asUint(param) - - return field.Uint() <= p - - case reflect.Float32: - p := asFloat32(param) - - return field.Float() <= p - - case reflect.Float64: - p := asFloat64(param) - - return field.Float() <= p - - case reflect.Struct: - - if field.Type().ConvertibleTo(timeType) { - - now := time.Now().UTC() - t := field.Convert(timeType).Interface().(time.Time) - - return t.Before(now) || t.Equal(now) - } - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isLt is the validation function for validating if the current field's value is less than the param's value. -func isLt(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - switch field.Kind() { - - case reflect.String: - p := asInt(param) - - return int64(utf8.RuneCountInString(field.String())) < p - - case reflect.Slice, reflect.Map, reflect.Array: - p := asInt(param) - - return int64(field.Len()) < p - - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - p := asIntFromType(field.Type(), param) - - return field.Int() < p - - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - p := asUint(param) - - return field.Uint() < p - - case reflect.Float32: - p := asFloat32(param) - - return field.Float() < p - - case reflect.Float64: - p := asFloat64(param) - - return field.Float() < p - - case reflect.Struct: - - if field.Type().ConvertibleTo(timeType) { - - return field.Convert(timeType).Interface().(time.Time).Before(time.Now().UTC()) - } - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// hasMaxOf is the validation function for validating if the current field's value is less than or equal to the param's value. -func hasMaxOf(fl FieldLevel) bool { - return isLte(fl) -} - -// isTCP4AddrResolvable is the validation function for validating if the field's value is a resolvable tcp4 address. -func isTCP4AddrResolvable(fl FieldLevel) bool { - if !isIP4Addr(fl) { - return false - } - - _, err := net.ResolveTCPAddr("tcp4", fl.Field().String()) - return err == nil -} - -// isTCP6AddrResolvable is the validation function for validating if the field's value is a resolvable tcp6 address. -func isTCP6AddrResolvable(fl FieldLevel) bool { - if !isIP6Addr(fl) { - return false - } - - _, err := net.ResolveTCPAddr("tcp6", fl.Field().String()) - - return err == nil -} - -// isTCPAddrResolvable is the validation function for validating if the field's value is a resolvable tcp address. -func isTCPAddrResolvable(fl FieldLevel) bool { - if !isIP4Addr(fl) && !isIP6Addr(fl) { - return false - } - - _, err := net.ResolveTCPAddr("tcp", fl.Field().String()) - - return err == nil -} - -// isUDP4AddrResolvable is the validation function for validating if the field's value is a resolvable udp4 address. -func isUDP4AddrResolvable(fl FieldLevel) bool { - if !isIP4Addr(fl) { - return false - } - - _, err := net.ResolveUDPAddr("udp4", fl.Field().String()) - - return err == nil -} - -// isUDP6AddrResolvable is the validation function for validating if the field's value is a resolvable udp6 address. -func isUDP6AddrResolvable(fl FieldLevel) bool { - if !isIP6Addr(fl) { - return false - } - - _, err := net.ResolveUDPAddr("udp6", fl.Field().String()) - - return err == nil -} - -// isUDPAddrResolvable is the validation function for validating if the field's value is a resolvable udp address. -func isUDPAddrResolvable(fl FieldLevel) bool { - if !isIP4Addr(fl) && !isIP6Addr(fl) { - return false - } - - _, err := net.ResolveUDPAddr("udp", fl.Field().String()) - - return err == nil -} - -// isIP4AddrResolvable is the validation function for validating if the field's value is a resolvable ip4 address. -func isIP4AddrResolvable(fl FieldLevel) bool { - if !isIPv4(fl) { - return false - } - - _, err := net.ResolveIPAddr("ip4", fl.Field().String()) - - return err == nil -} - -// isIP6AddrResolvable is the validation function for validating if the field's value is a resolvable ip6 address. -func isIP6AddrResolvable(fl FieldLevel) bool { - if !isIPv6(fl) { - return false - } - - _, err := net.ResolveIPAddr("ip6", fl.Field().String()) - - return err == nil -} - -// isIPAddrResolvable is the validation function for validating if the field's value is a resolvable ip address. -func isIPAddrResolvable(fl FieldLevel) bool { - if !isIP(fl) { - return false - } - - _, err := net.ResolveIPAddr("ip", fl.Field().String()) - - return err == nil -} - -// isUnixAddrResolvable is the validation function for validating if the field's value is a resolvable unix address. -func isUnixAddrResolvable(fl FieldLevel) bool { - _, err := net.ResolveUnixAddr("unix", fl.Field().String()) - - return err == nil -} - -func isIP4Addr(fl FieldLevel) bool { - val := fl.Field().String() - - if idx := strings.LastIndex(val, ":"); idx != -1 { - val = val[0:idx] - } - - ip := net.ParseIP(val) - - return ip != nil && ip.To4() != nil -} - -func isIP6Addr(fl FieldLevel) bool { - val := fl.Field().String() - - if idx := strings.LastIndex(val, ":"); idx != -1 { - if idx != 0 && val[idx-1:idx] == "]" { - val = val[1 : idx-1] - } - } - - ip := net.ParseIP(val) - - return ip != nil && ip.To4() == nil -} - -func isHostnameRFC952(fl FieldLevel) bool { - return hostnameRegexRFC952().MatchString(fl.Field().String()) -} - -func isHostnameRFC1123(fl FieldLevel) bool { - return hostnameRegexRFC1123().MatchString(fl.Field().String()) -} - -func isFQDN(fl FieldLevel) bool { - val := fl.Field().String() - - if val == "" { - return false - } - - return fqdnRegexRFC1123().MatchString(val) -} - -// isDir is the validation function for validating if the current field's value is a valid existing directory. -func isDir(fl FieldLevel) bool { - field := fl.Field() - - if field.Kind() == reflect.String { - fileInfo, err := os.Stat(field.String()) - if err != nil { - return false - } - - return fileInfo.IsDir() - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isDirPath is the validation function for validating if the current field's value is a valid directory. -func isDirPath(fl FieldLevel) bool { - - var exists bool - var err error - - field := fl.Field() - - // If it exists, it obviously is valid. - // This is done first to avoid code duplication and unnecessary additional logic. - if exists = isDir(fl); exists { - return true - } - - // It does not exist but may still be a valid path. - switch field.Kind() { - case reflect.String: - // Every OS allows for whitespace, but none - // let you use a dir with no name (to my knowledge). - // Unless you're dealing with raw inodes, but I digress. - if strings.TrimSpace(field.String()) == "" { - return false - } - if _, err = os.Stat(field.String()); err != nil { - switch t := err.(type) { - case *fs.PathError: - if t.Err == syscall.EINVAL { - // It's definitely an invalid character in the path. - return false - } - // It could be a permission error, a does-not-exist error, etc. - // Out-of-scope for this validation, though. - // Lastly, we make sure it is a directory. - if strings.HasSuffix(field.String(), string(os.PathSeparator)) { - return true - } else { - return false - } - default: - // Something went *seriously* wrong. - /* - Per https://pkg.go.dev/os#Stat: - "If there is an error, it will be of type *PathError." - */ - panic(err) - } - } - // We repeat the check here to make sure it is an explicit directory in case the above os.Stat didn't trigger an error. - if strings.HasSuffix(field.String(), string(os.PathSeparator)) { - return true - } else { - return false - } - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isJSON is the validation function for validating if the current field's value is a valid json string. -func isJSON(fl FieldLevel) bool { - field := fl.Field() - - switch field.Kind() { - case reflect.String: - val := field.String() - return json.Valid([]byte(val)) - case reflect.Slice: - fieldType := field.Type() - - if fieldType.ConvertibleTo(byteSliceType) { - b := field.Convert(byteSliceType).Interface().([]byte) - return json.Valid(b) - } - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isJWT is the validation function for validating if the current field's value is a valid JWT string. -func isJWT(fl FieldLevel) bool { - return jWTRegex().MatchString(fl.Field().String()) -} - -// isHostnamePort validates a <dns>:<port> combination for fields typically used for socket address. -func isHostnamePort(fl FieldLevel) bool { - val := fl.Field().String() - host, port, err := net.SplitHostPort(val) - if err != nil { - return false - } - // Port must be a iny <= 65535. - if portNum, err := strconv.ParseInt( - port, 10, 32, - ); err != nil || portNum > 65535 || portNum < 1 { - return false - } - - // If host is specified, it should match a DNS name - if host != "" { - return hostnameRegexRFC1123().MatchString(host) - } - return true -} - -// IsPort validates if the current field's value represents a valid port -func isPort(fl FieldLevel) bool { - val := fl.Field().Uint() - - return val >= 1 && val <= 65535 -} - -// isLowercase is the validation function for validating if the current field's value is a lowercase string. -func isLowercase(fl FieldLevel) bool { - field := fl.Field() - - if field.Kind() == reflect.String { - if field.String() == "" { - return false - } - return field.String() == strings.ToLower(field.String()) - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isUppercase is the validation function for validating if the current field's value is an uppercase string. -func isUppercase(fl FieldLevel) bool { - field := fl.Field() - - if field.Kind() == reflect.String { - if field.String() == "" { - return false - } - return field.String() == strings.ToUpper(field.String()) - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isDatetime is the validation function for validating if the current field's value is a valid datetime string. -func isDatetime(fl FieldLevel) bool { - field := fl.Field() - param := fl.Param() - - if field.Kind() == reflect.String { - _, err := time.Parse(param, field.String()) - - return err == nil - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isTimeZone is the validation function for validating if the current field's value is a valid time zone string. -func isTimeZone(fl FieldLevel) bool { - field := fl.Field() - - if field.Kind() == reflect.String { - // empty value is converted to UTC by time.LoadLocation but disallow it as it is not a valid time zone name - if field.String() == "" { - return false - } - - // Local value is converted to the current system time zone by time.LoadLocation but disallow it as it is not a valid time zone name - if strings.ToLower(field.String()) == "local" { - return false - } - - _, err := time.LoadLocation(field.String()) - return err == nil - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isIso3166Alpha2 is the validation function for validating if the current field's value is a valid iso3166-1 alpha-2 country code. -func isIso3166Alpha2(fl FieldLevel) bool { - _, ok := iso3166_1_alpha2[fl.Field().String()] - return ok -} - -// isIso3166Alpha2EU is the validation function for validating if the current field's value is a valid iso3166-1 alpha-2 European Union country code. -func isIso3166Alpha2EU(fl FieldLevel) bool { - _, ok := iso3166_1_alpha2_eu[fl.Field().String()] - return ok -} - -// isIso3166Alpha3 is the validation function for validating if the current field's value is a valid iso3166-1 alpha-3 country code. -func isIso3166Alpha3(fl FieldLevel) bool { - _, ok := iso3166_1_alpha3[fl.Field().String()] - return ok -} - -// isIso3166Alpha3EU is the validation function for validating if the current field's value is a valid iso3166-1 alpha-3 European Union country code. -func isIso3166Alpha3EU(fl FieldLevel) bool { - _, ok := iso3166_1_alpha3_eu[fl.Field().String()] - return ok -} - -// isIso3166AlphaNumeric is the validation function for validating if the current field's value is a valid iso3166-1 alpha-numeric country code. -func isIso3166AlphaNumeric(fl FieldLevel) bool { - field := fl.Field() - - var code int - switch field.Kind() { - case reflect.String: - i, err := strconv.Atoi(field.String()) - if err != nil { - return false - } - code = i % 1000 - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - code = int(field.Int() % 1000) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - code = int(field.Uint() % 1000) - default: - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - - _, ok := iso3166_1_alpha_numeric[code] - return ok -} - -// isIso3166AlphaNumericEU is the validation function for validating if the current field's value is a valid iso3166-1 alpha-numeric European Union country code. -func isIso3166AlphaNumericEU(fl FieldLevel) bool { - field := fl.Field() - - var code int - switch field.Kind() { - case reflect.String: - i, err := strconv.Atoi(field.String()) - if err != nil { - return false - } - code = i % 1000 - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - code = int(field.Int() % 1000) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - code = int(field.Uint() % 1000) - default: - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - - _, ok := iso3166_1_alpha_numeric_eu[code] - return ok -} - -// isIso31662 is the validation function for validating if the current field's value is a valid iso3166-2 code. -func isIso31662(fl FieldLevel) bool { - _, ok := iso3166_2[fl.Field().String()] - return ok -} - -// isIso4217 is the validation function for validating if the current field's value is a valid iso4217 currency code. -func isIso4217(fl FieldLevel) bool { - _, ok := iso4217[fl.Field().String()] - return ok -} - -// isIso4217Numeric is the validation function for validating if the current field's value is a valid iso4217 numeric currency code. -func isIso4217Numeric(fl FieldLevel) bool { - field := fl.Field() - - var code int - switch field.Kind() { - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - code = int(field.Int()) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - code = int(field.Uint()) - default: - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - - _, ok := iso4217_numeric[code] - return ok -} - -// isBCP47LanguageTag is the validation function for validating if the current field's value is a valid BCP 47 language tag, as parsed by language.Parse -func isBCP47LanguageTag(fl FieldLevel) bool { - field := fl.Field() - - if field.Kind() == reflect.String { - _, err := language.Parse(field.String()) - return err == nil - } - - panic(fmt.Sprintf("Bad field type %T", field.Interface())) -} - -// isIsoBicFormat is the validation function for validating if the current field's value is a valid Business Identifier Code (SWIFT code), defined in ISO 9362 -func isIsoBicFormat(fl FieldLevel) bool { - bicString := fl.Field().String() - - return bicRegex().MatchString(bicString) -} - -// isSemverFormat is the validation function for validating if the current field's value is a valid semver version, defined in Semantic Versioning 2.0.0 -func isSemverFormat(fl FieldLevel) bool { - semverString := fl.Field().String() - - return semverRegex().MatchString(semverString) -} - -// isCveFormat is the validation function for validating if the current field's value is a valid cve id, defined in CVE mitre org -func isCveFormat(fl FieldLevel) bool { - cveString := fl.Field().String() - - return cveRegex().MatchString(cveString) -} - -// isDnsRFC1035LabelFormat is the validation function -// for validating if the current field's value is -// a valid dns RFC 1035 label, defined in RFC 1035. -func isDnsRFC1035LabelFormat(fl FieldLevel) bool { - val := fl.Field().String() - return dnsRegexRFC1035Label().MatchString(val) -} - -// digitsHaveLuhnChecksum returns true if and only if the last element of the given digits slice is the Luhn checksum of the previous elements -func digitsHaveLuhnChecksum(digits []string) bool { - size := len(digits) - sum := 0 - for i, digit := range digits { - value, err := strconv.Atoi(digit) - if err != nil { - return false - } - if size%2 == 0 && i%2 == 0 || size%2 == 1 && i%2 == 1 { - v := value * 2 - if v >= 10 { - sum += 1 + (v % 10) - } else { - sum += v - } - } else { - sum += value - } - } - return (sum % 10) == 0 -} - -// isMongoDBObjectId is the validation function for validating if the current field's value is valid MongoDB ObjectID -func isMongoDBObjectId(fl FieldLevel) bool { - val := fl.Field().String() - return mongodbIdRegex().MatchString(val) -} - -// isMongoDBConnectionString is the validation function for validating if the current field's value is valid MongoDB Connection String -func isMongoDBConnectionString(fl FieldLevel) bool { - val := fl.Field().String() - return mongodbConnectionRegex().MatchString(val) -} - -// isSpiceDB is the validation function for validating if the current field's value is valid for use with Authzed SpiceDB in the indicated way -func isSpiceDB(fl FieldLevel) bool { - val := fl.Field().String() - param := fl.Param() - - switch param { - case "permission": - return spicedbPermissionRegex().MatchString(val) - case "type": - return spicedbTypeRegex().MatchString(val) - case "id", "": - return spicedbIDRegex().MatchString(val) - } - - panic("Unrecognized parameter: " + param) -} - -// isCreditCard is the validation function for validating if the current field's value is a valid credit card number -func isCreditCard(fl FieldLevel) bool { - val := fl.Field().String() - var creditCard bytes.Buffer - segments := strings.Split(val, " ") - for _, segment := range segments { - if len(segment) < 3 { - return false - } - creditCard.WriteString(segment) - } - - ccDigits := strings.Split(creditCard.String(), "") - size := len(ccDigits) - if size < 12 || size > 19 { - return false - } - - return digitsHaveLuhnChecksum(ccDigits) -} - -// hasLuhnChecksum is the validation for validating if the current field's value has a valid Luhn checksum -func hasLuhnChecksum(fl FieldLevel) bool { - field := fl.Field() - var str string // convert to a string which will then be split into single digits; easier and more readable than shifting/extracting single digits from a number - switch field.Kind() { - case reflect.String: - str = field.String() - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - str = strconv.FormatInt(field.Int(), 10) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - str = strconv.FormatUint(field.Uint(), 10) - default: - panic(fmt.Sprintf("Bad field type %T", field.Interface())) - } - size := len(str) - if size < 2 { // there has to be at least one digit that carries a meaning + the checksum - return false - } - digits := strings.Split(str, "") - return digitsHaveLuhnChecksum(digits) -} - -// isCron is the validation function for validating if the current field's value is a valid cron expression -func isCron(fl FieldLevel) bool { - cronString := fl.Field().String() - return cronRegex().MatchString(cronString) -} |