Cutelyst  2.13.0
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
Cutelyst::ValidatorIp Class Reference

Checks if the field value is a valid IP address. More...

#include <Cutelyst/Plugins/Utils/validatorip.h>

Inheritance diagram for Cutelyst::ValidatorIp:
Inheritance graph

Public Types

enum  Constraint {
  NoConstraint, IPv4Only, IPv6Only, NoPrivateRange,
  NoReservedRange, NoMultiCast, PublicOnly
 Acceptable address ranges. More...

Public Member Functions

 ValidatorIp (const QString &field, Constraints constraints=NoConstraint, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
 Constructs a new ip validator. More...
 ~ValidatorIp () override
 Deconstructs the ip validator.
- Public Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (const QString &field, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
 Constructs a new ValidatorRule with the given parameters. More...
virtual ~ValidatorRule ()
 Deconstructs the ValidatorRule.

Static Public Member Functions

static bool validate (const QString &value, Constraints constraints=NoConstraint)
 Returns true if value is a valid IP address within the constraints. More...

Protected Member Functions

QString genericValidationError (Context *c, const QVariant &errorData=QVariant()) const override
 Returns a generic error message if validation failed.
ValidatorReturnType validate (Context *c, const ParamsMultiMap &params) const override
 Performs the validation and returns the result. More...
- Protected Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (ValidatorRulePrivate &dd)
 Constructs a new ValidatorRule object with the given private class. More...
void defaultValue (Context *c, ValidatorReturnType *result, const char *validatorName) const
 I a defValKey has been set in the constructor, this will try to get the default value from the stash and put it into the result. More...
QString field () const
 Returns the name of the field to validate. More...
virtual QString genericParsingError (Context *c, const QVariant &errorData=QVariant()) const
 Returns a generic error message if an error occures while parsing input. More...
virtual QString genericValidationDataError (Context *c, const QVariant &errorData=QVariant()) const
 Returns a generic error message if any validation data is missing or invalid. More...
QString label (Context *c) const
 Returns the human readable field label used for generic error messages. More...
QString parsingError (Context *c, const QVariant &errorData=QVariant()) const
 Returns an error message if an error occured while parsing input. More...
bool trimBefore () const
 Returns true if the field value should be trimmed before validation. More...
QString validationDataError (Context *c, const QVariant &errorData=QVariant()) const
 Returns an error message if any validation data is missing or invalid. More...
QString validationError (Context *c, const QVariant &errorData=QVariant()) const
 Returns a descriptive error message if validation failed. More...
QString value (const ParamsMultiMap &params) const
 Returns the value of the field from the input params.

Detailed Description

This uses QHostAddress internally to check if the field contains a valid IP address. You can use the constraints flags to limit the validator to specific address ranges.

Unless validation is started with NoTrimming, whitespaces will be removed from the beginning and the end of the input value before validation. If the field's value is empty or if the field is missing in the input data, the validation will succeed without performing the validation itself. Use one of the required validators to require the field to be present and not empty.
See also
Validator for general usage of validators.

Definition at line 44 of file validatorip.h.

Member Enumeration Documentation

◆ Constraint


No address range limit.


Only IPv4 addresses are valid.


Only IPv6 addresses are valid.


Addresses from private networks like and fe80::/10 are invalid.


Addresses from reserved networks like and 2001:db8::/32 are invalid.


Multicast addresses are invalid.


Combines NoPrivateRange, NoReservedRange and NoMultiCast.

Definition at line 50 of file validatorip.h.

Constructor & Destructor Documentation

◆ ValidatorIp()

ValidatorIp::ValidatorIp ( const QString &  field,
Constraints  constraints = NoConstraint,
const ValidatorMessages messages = ValidatorMessages(),
const QString &  defValKey = QString() 
fieldName of the input field to validate.
constraintsOptional validation constraints.
messagesCustom error message if validation fails.
defValKeyStash key containing a default value if input field is empty. This value will NOT be validated.

Definition at line 26 of file validatorip.cpp.

Member Function Documentation

◆ validate()

ValidatorReturnType ValidatorIp::validate ( Cutelyst::Context c,
const ParamsMultiMap params 
) const