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diff --git a/vendor/github.com/asaskevich/govalidator/README.md b/vendor/github.com/asaskevich/govalidator/README.md new file mode 100644 index 000000000..2c3fc35eb --- /dev/null +++ b/vendor/github.com/asaskevich/govalidator/README.md @@ -0,0 +1,622 @@ +govalidator +=========== +[](https://gitter.im/asaskevich/govalidator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [](https://godoc.org/github.com/asaskevich/govalidator) +[](https://travis-ci.org/asaskevich/govalidator) +[](https://codecov.io/gh/asaskevich/govalidator) [](https://goreportcard.com/report/github.com/asaskevich/govalidator) [](http://go-search.org/view?id=github.com%2Fasaskevich%2Fgovalidator) [](#backers) [](#sponsors) [](https://app.fossa.io/projects/git%2Bgithub.com%2Fasaskevich%2Fgovalidator?ref=badge_shield) + +A package of validators and sanitizers for strings, structs and collections. Based on [validator.js](https://github.com/chriso/validator.js). + +#### Installation +Make sure that Go is installed on your computer. +Type the following command in your terminal: + + go get github.com/asaskevich/govalidator + +or you can get specified release of the package with `gopkg.in`: + + go get gopkg.in/asaskevich/govalidator.v10 + +After it the package is ready to use. + + +#### Import package in your project +Add following line in your `*.go` file: +```go +import "github.com/asaskevich/govalidator" +``` +If you are unhappy to use long `govalidator`, you can do something like this: +```go +import ( + valid "github.com/asaskevich/govalidator" +) +``` + +#### Activate behavior to require all fields have a validation tag by default +`SetFieldsRequiredByDefault` causes validation to fail when struct fields do not include validations or are not explicitly marked as exempt (using `valid:"-"` or `valid:"email,optional"`). A good place to activate this is a package init function or the main() function. + +`SetNilPtrAllowedByRequired` causes validation to pass when struct fields marked by `required` are set to nil. This is disabled by default for consistency, but some packages that need to be able to determine between `nil` and `zero value` state can use this. If disabled, both `nil` and `zero` values cause validation errors. + +```go +import "github.com/asaskevich/govalidator" + +func init() { + govalidator.SetFieldsRequiredByDefault(true) +} +``` + +Here's some code to explain it: +```go +// this struct definition will fail govalidator.ValidateStruct() (and the field values do not matter): +type exampleStruct struct { + Name string `` + Email string `valid:"email"` +} + +// this, however, will only fail when Email is empty or an invalid email address: +type exampleStruct2 struct { + Name string `valid:"-"` + Email string `valid:"email"` +} + +// lastly, this will only fail when Email is an invalid email address but not when it's empty: +type exampleStruct2 struct { + Name string `valid:"-"` + Email string `valid:"email,optional"` +} +``` + +#### Recent breaking changes (see [#123](https://github.com/asaskevich/govalidator/pull/123)) +##### Custom validator function signature +A context was added as the second parameter, for structs this is the object being validated – this makes dependent validation possible. +```go +import "github.com/asaskevich/govalidator" + +// old signature +func(i interface{}) bool + +// new signature +func(i interface{}, o interface{}) bool +``` + +##### Adding a custom validator +This was changed to prevent data races when accessing custom validators. +```go +import "github.com/asaskevich/govalidator" + +// before +govalidator.CustomTypeTagMap["customByteArrayValidator"] = func(i interface{}, o interface{}) bool { + // ... +} + +// after +govalidator.CustomTypeTagMap.Set("customByteArrayValidator", func(i interface{}, o interface{}) bool { + // ... +}) +``` + +#### List of functions: +```go +func Abs(value float64) float64 +func BlackList(str, chars string) string +func ByteLength(str string, params ...string) bool +func CamelCaseToUnderscore(str string) string +func Contains(str, substring string) bool +func Count(array []interface{}, iterator ConditionIterator) int +func Each(array []interface{}, iterator Iterator) +func ErrorByField(e error, field string) string +func ErrorsByField(e error) map[string]string +func Filter(array []interface{}, iterator ConditionIterator) []interface{} +func Find(array []interface{}, iterator ConditionIterator) interface{} +func GetLine(s string, index int) (string, error) +func GetLines(s string) []string +func HasLowerCase(str string) bool +func HasUpperCase(str string) bool +func HasWhitespace(str string) bool +func HasWhitespaceOnly(str string) bool +func InRange(value interface{}, left interface{}, right interface{}) bool +func InRangeFloat32(value, left, right float32) bool +func InRangeFloat64(value, left, right float64) bool +func InRangeInt(value, left, right interface{}) bool +func IsASCII(str string) bool +func IsAlpha(str string) bool +func IsAlphanumeric(str string) bool +func IsBase64(str string) bool +func IsByteLength(str string, min, max int) bool +func IsCIDR(str string) bool +func IsCRC32(str string) bool +func IsCRC32b(str string) bool +func IsCreditCard(str string) bool +func IsDNSName(str string) bool +func IsDataURI(str string) bool +func IsDialString(str string) bool +func IsDivisibleBy(str, num string) bool +func IsEmail(str string) bool +func IsExistingEmail(email string) bool +func IsFilePath(str string) (bool, int) +func IsFloat(str string) bool +func IsFullWidth(str string) bool +func IsHalfWidth(str string) bool +func IsHash(str string, algorithm string) bool +func IsHexadecimal(str string) bool +func IsHexcolor(str string) bool +func IsHost(str string) bool +func IsIP(str string) bool +func IsIPv4(str string) bool +func IsIPv6(str string) bool +func IsISBN(str string, version int) bool +func IsISBN10(str string) bool +func IsISBN13(str string) bool +func IsISO3166Alpha2(str string) bool +func IsISO3166Alpha3(str string) bool +func IsISO4217(str string) bool +func IsISO693Alpha2(str string) bool +func IsISO693Alpha3b(str string) bool +func IsIn(str string, params ...string) bool +func IsInRaw(str string, params ...string) bool +func IsInt(str string) bool +func IsJSON(str string) bool +func IsLatitude(str string) bool +func IsLongitude(str string) bool +func IsLowerCase(str string) bool +func IsMAC(str string) bool +func IsMD4(str string) bool +func IsMD5(str string) bool +func IsMagnetURI(str string) bool +func IsMongoID(str string) bool +func IsMultibyte(str string) bool +func IsNatural(value float64) bool +func IsNegative(value float64) bool +func IsNonNegative(value float64) bool +func IsNonPositive(value float64) bool +func IsNotNull(str string) bool +func IsNull(str string) bool +func IsNumeric(str string) bool +func IsPort(str string) bool +func IsPositive(value float64) bool +func IsPrintableASCII(str string) bool +func IsRFC3339(str string) bool +func IsRFC3339WithoutZone(str string) bool +func IsRGBcolor(str string) bool +func IsRegex(str string) bool +func IsRequestURI(rawurl string) bool +func IsRequestURL(rawurl string) bool +func IsRipeMD128(str string) bool +func IsRipeMD160(str string) bool +func IsRsaPub(str string, params ...string) bool +func IsRsaPublicKey(str string, keylen int) bool +func IsSHA1(str string) bool +func IsSHA256(str string) bool +func IsSHA384(str string) bool +func IsSHA512(str string) bool +func IsSSN(str string) bool +func IsSemver(str string) bool +func IsTiger128(str string) bool +func IsTiger160(str string) bool +func IsTiger192(str string) bool +func IsTime(str string, format string) bool +func IsType(v interface{}, params ...string) bool +func IsURL(str string) bool +func IsUTFDigit(str string) bool +func IsUTFLetter(str string) bool +func IsUTFLetterNumeric(str string) bool +func IsUTFNumeric(str string) bool +func IsUUID(str string) bool +func IsUUIDv3(str string) bool +func IsUUIDv4(str string) bool +func IsUUIDv5(str string) bool +func IsULID(str string) bool +func IsUnixTime(str string) bool +func IsUpperCase(str string) bool +func IsVariableWidth(str string) bool +func IsWhole(value float64) bool +func LeftTrim(str, chars string) string +func Map(array []interface{}, iterator ResultIterator) []interface{} +func Matches(str, pattern string) bool +func MaxStringLength(str string, params ...string) bool +func MinStringLength(str string, params ...string) bool +func NormalizeEmail(str string) (string, error) +func PadBoth(str string, padStr string, padLen int) string +func PadLeft(str string, padStr string, padLen int) string +func PadRight(str string, padStr string, padLen int) string +func PrependPathToErrors(err error, path string) error +func Range(str string, params ...string) bool +func RemoveTags(s string) string +func ReplacePattern(str, pattern, replace string) string +func Reverse(s string) string +func RightTrim(str, chars string) string +func RuneLength(str string, params ...string) bool +func SafeFileName(str string) string +func SetFieldsRequiredByDefault(value bool) +func SetNilPtrAllowedByRequired(value bool) +func Sign(value float64) float64 +func StringLength(str string, params ...string) bool +func StringMatches(s string, params ...string) bool +func StripLow(str string, keepNewLines bool) string +func ToBoolean(str string) (bool, error) +func ToFloat(str string) (float64, error) +func ToInt(value interface{}) (res int64, err error) +func ToJSON(obj interface{}) (string, error) +func ToString(obj interface{}) string +func Trim(str, chars string) string +func Truncate(str string, length int, ending string) string +func TruncatingErrorf(str string, args ...interface{}) error +func UnderscoreToCamelCase(s string) string +func ValidateMap(inputMap map[string]interface{}, validationMap map[string]interface{}) (bool, error) +func ValidateStruct(s interface{}) (bool, error) +func WhiteList(str, chars string) string +type ConditionIterator +type CustomTypeValidator +type Error +func (e Error) Error() string +type Errors +func (es Errors) Error() string +func (es Errors) Errors() []error +type ISO3166Entry +type ISO693Entry +type InterfaceParamValidator +type Iterator +type ParamValidator +type ResultIterator +type UnsupportedTypeError +func (e *UnsupportedTypeError) Error() string +type Validator +``` + +#### Examples +###### IsURL +```go +println(govalidator.IsURL(`http://user@pass:domain.com/path/page`)) +``` +###### IsType +```go +println(govalidator.IsType("Bob", "string")) +println(govalidator.IsType(1, "int")) +i := 1 +println(govalidator.IsType(&i, "*int")) +``` + +IsType can be used through the tag `type` which is essential for map validation: +```go +type User struct { + Name string `valid:"type(string)"` + Age int `valid:"type(int)"` + Meta interface{} `valid:"type(string)"` +} +result, err := govalidator.ValidateStruct(User{"Bob", 20, "meta"}) +if err != nil { + println("error: " + err.Error()) +} +println(result) +``` +###### ToString +```go +type User struct { + FirstName string + LastName string +} + +str := govalidator.ToString(&User{"John", "Juan"}) +println(str) +``` +###### Each, Map, Filter, Count for slices +Each iterates over the slice/array and calls Iterator for every item +```go +data := []interface{}{1, 2, 3, 4, 5} +var fn govalidator.Iterator = func(value interface{}, index int) { + println(value.(int)) +} +govalidator.Each(data, fn) +``` +```go +data := []interface{}{1, 2, 3, 4, 5} +var fn govalidator.ResultIterator = func(value interface{}, index int) interface{} { + return value.(int) * 3 +} +_ = govalidator.Map(data, fn) // result = []interface{}{1, 6, 9, 12, 15} +``` +```go +data := []interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9, 10} +var fn govalidator.ConditionIterator = func(value interface{}, index int) bool { + return value.(int)%2 == 0 +} +_ = govalidator.Filter(data, fn) // result = []interface{}{2, 4, 6, 8, 10} +_ = govalidator.Count(data, fn) // result = 5 +``` +###### ValidateStruct [#2](https://github.com/asaskevich/govalidator/pull/2) +If you want to validate structs, you can use tag `valid` for any field in your structure. All validators used with this field in one tag are separated by comma. If you want to skip validation, place `-` in your tag. If you need a validator that is not on the list below, you can add it like this: +```go +govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool { + return str == "duck" +}) +``` +For completely custom validators (interface-based), see below. + +Here is a list of available validators for struct fields (validator - used function): +```go +"email": IsEmail, +"url": IsURL, +"dialstring": IsDialString, +"requrl": IsRequestURL, +"requri": IsRequestURI, +"alpha": IsAlpha, +"utfletter": IsUTFLetter, +"alphanum": IsAlphanumeric, +"utfletternum": IsUTFLetterNumeric, +"numeric": IsNumeric, +"utfnumeric": IsUTFNumeric, +"utfdigit": IsUTFDigit, +"hexadecimal": IsHexadecimal, +"hexcolor": IsHexcolor, +"rgbcolor": IsRGBcolor, +"lowercase": IsLowerCase, +"uppercase": IsUpperCase, +"int": IsInt, +"float": IsFloat, +"null": IsNull, +"uuid": IsUUID, +"uuidv3": IsUUIDv3, +"uuidv4": IsUUIDv4, +"uuidv5": IsUUIDv5, +"creditcard": IsCreditCard, +"isbn10": IsISBN10, +"isbn13": IsISBN13, +"json": IsJSON, +"multibyte": IsMultibyte, +"ascii": IsASCII, +"printableascii": IsPrintableASCII, +"fullwidth": IsFullWidth, +"halfwidth": IsHalfWidth, +"variablewidth": IsVariableWidth, +"base64": IsBase64, +"datauri": IsDataURI, +"ip": IsIP, +"port": IsPort, +"ipv4": IsIPv4, +"ipv6": IsIPv6, +"dns": IsDNSName, +"host": IsHost, +"mac": IsMAC, +"latitude": IsLatitude, +"longitude": IsLongitude, +"ssn": IsSSN, +"semver": IsSemver, +"rfc3339": IsRFC3339, +"rfc3339WithoutZone": IsRFC3339WithoutZone, +"ISO3166Alpha2": IsISO3166Alpha2, +"ISO3166Alpha3": IsISO3166Alpha3, +"ulid": IsULID, +``` +Validators with parameters + +```go +"range(min|max)": Range, +"length(min|max)": ByteLength, +"runelength(min|max)": RuneLength, +"stringlength(min|max)": StringLength, +"matches(pattern)": StringMatches, +"in(string1|string2|...|stringN)": IsIn, +"rsapub(keylength)" : IsRsaPub, +"minstringlength(int): MinStringLength, +"maxstringlength(int): MaxStringLength, +``` +Validators with parameters for any type + +```go +"type(type)": IsType, +``` + +And here is small example of usage: +```go +type Post struct { + Title string `valid:"alphanum,required"` + Message string `valid:"duck,ascii"` + Message2 string `valid:"animal(dog)"` + AuthorIP string `valid:"ipv4"` + Date string `valid:"-"` +} +post := &Post{ + Title: "My Example Post", + Message: "duck", + Message2: "dog", + AuthorIP: "123.234.54.3", +} + +// Add your own struct validation tags +govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool { + return str == "duck" +}) + +// Add your own struct validation tags with parameter +govalidator.ParamTagMap["animal"] = govalidator.ParamValidator(func(str string, params ...string) bool { + species := params[0] + return str == species +}) +govalidator.ParamTagRegexMap["animal"] = regexp.MustCompile("^animal\\((\\w+)\\)$") + +result, err := govalidator.ValidateStruct(post) +if err != nil { + println("error: " + err.Error()) +} +println(result) +``` +###### ValidateMap [#2](https://github.com/asaskevich/govalidator/pull/338) +If you want to validate maps, you can use the map to be validated and a validation map that contain the same tags used in ValidateStruct, both maps have to be in the form `map[string]interface{}` + +So here is small example of usage: +```go +var mapTemplate = map[string]interface{}{ + "name":"required,alpha", + "family":"required,alpha", + "email":"required,email", + "cell-phone":"numeric", + "address":map[string]interface{}{ + "line1":"required,alphanum", + "line2":"alphanum", + "postal-code":"numeric", + }, +} + +var inputMap = map[string]interface{}{ + "name":"Bob", + "family":"Smith", + "email":"foo@bar.baz", + "address":map[string]interface{}{ + "line1":"", + "line2":"", + "postal-code":"", + }, +} + +result, err := govalidator.ValidateMap(inputMap, mapTemplate) +if err != nil { + println("error: " + err.Error()) +} +println(result) +``` + +###### WhiteList +```go +// Remove all characters from string ignoring characters between "a" and "z" +println(govalidator.WhiteList("a3a43a5a4a3a2a23a4a5a4a3a4", "a-z") == "aaaaaaaaaaaa") +``` + +###### Custom validation functions +Custom validation using your own domain specific validators is also available - here's an example of how to use it: +```go +import "github.com/asaskevich/govalidator" + +type CustomByteArray [6]byte // custom types are supported and can be validated + +type StructWithCustomByteArray struct { + ID CustomByteArray `valid:"customByteArrayValidator,customMinLengthValidator"` // multiple custom validators are possible as well and will be evaluated in sequence + Email string `valid:"email"` + CustomMinLength int `valid:"-"` +} + +govalidator.CustomTypeTagMap.Set("customByteArrayValidator", func(i interface{}, context interface{}) bool { + switch v := context.(type) { // you can type switch on the context interface being validated + case StructWithCustomByteArray: + // you can check and validate against some other field in the context, + // return early or not validate against the context at all – your choice + case SomeOtherType: + // ... + default: + // expecting some other type? Throw/panic here or continue + } + + switch v := i.(type) { // type switch on the struct field being validated + case CustomByteArray: + for _, e := range v { // this validator checks that the byte array is not empty, i.e. not all zeroes + if e != 0 { + return true + } + } + } + return false +}) +govalidator.CustomTypeTagMap.Set("customMinLengthValidator", func(i interface{}, context interface{}) bool { + switch v := context.(type) { // this validates a field against the value in another field, i.e. dependent validation + case StructWithCustomByteArray: + return len(v.ID) >= v.CustomMinLength + } + return false +}) +``` + +###### Loop over Error() +By default .Error() returns all errors in a single String. To access each error you can do this: +```go + if err != nil { + errs := err.(govalidator.Errors).Errors() + for _, e := range errs { + fmt.Println(e.Error()) + } + } +``` + +###### Custom error messages +Custom error messages are supported via annotations by adding the `~` separator - here's an example of how to use it: +```go +type Ticket struct { + Id int64 `json:"id"` + FirstName string `json:"firstname" valid:"required~First name is blank"` +} +``` + +#### Notes +Documentation is available here: [godoc.org](https://godoc.org/github.com/asaskevich/govalidator). +Full information about code coverage is also available here: [govalidator on gocover.io](http://gocover.io/github.com/asaskevich/govalidator). + +#### Support +If you do have a contribution to the package, feel free to create a Pull Request or an Issue. + +#### What to contribute +If you don't know what to do, there are some features and functions that need to be done + +- [ ] Refactor code +- [ ] Edit docs and [README](https://github.com/asaskevich/govalidator/README.md): spellcheck, grammar and typo check +- [ ] Create actual list of contributors and projects that currently using this package +- [ ] Resolve [issues and bugs](https://github.com/asaskevich/govalidator/issues) +- [ ] Update actual [list of functions](https://github.com/asaskevich/govalidator#list-of-functions) +- [ ] Update [list of validators](https://github.com/asaskevich/govalidator#validatestruct-2) that available for `ValidateStruct` and add new +- [ ] Implement new validators: `IsFQDN`, `IsIMEI`, `IsPostalCode`, `IsISIN`, `IsISRC` etc +- [x] Implement [validation by maps](https://github.com/asaskevich/govalidator/issues/224) +- [ ] Implement fuzzing testing +- [ ] Implement some struct/map/array utilities +- [ ] Implement map/array validation +- [ ] Implement benchmarking +- [ ] Implement batch of examples +- [ ] Look at forks for new features and fixes + +#### Advice +Feel free to create what you want, but keep in mind when you implement new features: +- Code must be clear and readable, names of variables/constants clearly describes what they are doing +- Public functions must be documented and described in source file and added to README.md to the list of available functions +- There are must be unit-tests for any new functions and improvements + +## Credits +### Contributors + +This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)]. + +#### Special thanks to [contributors](https://github.com/asaskevich/govalidator/graphs/contributors) +* [Daniel Lohse](https://github.com/annismckenzie) +* [Attila Oláh](https://github.com/attilaolah) +* [Daniel Korner](https://github.com/Dadie) +* [Steven Wilkin](https://github.com/stevenwilkin) +* [Deiwin Sarjas](https://github.com/deiwin) +* [Noah Shibley](https://github.com/slugmobile) +* [Nathan Davies](https://github.com/nathj07) +* [Matt Sanford](https://github.com/mzsanford) +* [Simon ccl1115](https://github.com/ccl1115) + +<a href="https://github.com/asaskevich/govalidator/graphs/contributors"><img src="https://opencollective.com/govalidator/contributors.svg?width=890" /></a> + + +### Backers + +Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/govalidator#backer)] + +<a href="https://opencollective.com/govalidator#backers" target="_blank"><img src="https://opencollective.com/govalidator/backers.svg?width=890"></a> + + +### Sponsors + +Support this project by becoming a sponsor. Your logo will show up here with a link to your website. 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