cutelyst  4.5.1
A C++ Web Framework built on top of Qt, using the simple approach of Catalyst (Perl) framework.
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:

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())
 
 ~ValidatorIp () override
 
- Public Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (const QString &field, const ValidatorMessages &messages={}, const QString &defValKey={}, QByteArrayView validatorName=nullptr)
 
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
 
ValidatorReturnType validate (Context *c, const ParamsMultiMap &params) const override
 
- Protected Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (ValidatorRulePrivate &dd)
 
QString debugString (Context *c) const
 
void defaultValue (Context *c, ValidatorReturnType *result) const
 
QString field () const noexcept
 
virtual QString genericParsingError (Context *c, const QVariant &errorData={}) const
 
virtual QString genericValidationDataError (Context *c, const QVariant &errorData={}) const
 
QString label (Context *c) const
 
QString parsingError (Context *c, const QVariant &errorData={}) const
 
bool trimBefore () const noexcept
 
QString validationDataError (Context *c, const QVariant &errorData={}) const
 
QString validationError (Context *c, const QVariant &errorData={}) const
 
QString value (const ParamsMultiMap &params) const
 

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.

Note
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.
Return type
On success, ValidatorReturnType::value will contain a QString.
See also
Validator for general usage of validators.

Definition at line 34 of file validatorip.h.

Member Enumeration Documentation

◆ Constraint

Enumerator
NoConstraint 

No address range limit.

IPv4Only 

Only IPv4 addresses are valid.

IPv6Only 

Only IPv6 addresses are valid.

NoPrivateRange 

Addresses from private networks like 192.168.0.0/12 and fe80::/10 are invalid.

NoReservedRange 

Addresses from reserved networks like 192.88.99.0/24 and 2001:db8::/32 are invalid.

NoMultiCast 

Multicast addresses are invalid.

PublicOnly 

Combines NoPrivateRange, NoReservedRange and NoMultiCast.

Definition at line 40 of file validatorip.h.

Constructor & Destructor Documentation

◆ ValidatorIp()

ValidatorIp::ValidatorIp ( const QString field,
Constraints  constraints = NoConstraint,
const ValidatorMessages messages = ValidatorMessages(),
const QString defValKey = QString() 
)

Constructs a new ValidatorIp object with the given parameters.

Parameters
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 17 of file validatorip.cpp.

◆ ~ValidatorIp()

ValidatorIp::~ValidatorIp ( )
overridedefault

Destroys the ValidatorIp object.

Member Function Documentation

◆ genericValidationError()

QString ValidatorIp::genericValidationError ( Context c,
const QVariant errorData = QVariant() 
) const
overrideprotectedvirtual

Returns a generic error message if validation failed.

Reimplemented from Cutelyst::ValidatorRule.

Definition at line 256 of file validatorip.cpp.

References QString::arg(), QString::isEmpty(), Cutelyst::ValidatorRule::label(), and Cutelyst::Context::qtTrId().

◆ validate()

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

Performs the validation on the input params and returns the result.

If validation succeeded, ValidatorReturnType::value will contain the input paramter value as QString.

Implements Cutelyst::ValidatorRule.

Definition at line 27 of file validatorip.cpp.

References Cutelyst::ValidatorRule::defaultValue(), Cutelyst::ValidatorReturnType::errorMessage, QString::isEmpty(), QVariant::setValue(), validate(), Cutelyst::ValidatorRule::validationError(), Cutelyst::ValidatorReturnType::value, and Cutelyst::ValidatorRule::value().