- Qt 5.15
- Qt WebEngine
- C++ Classes
- QWebEngineCertificateError
- Qt 5.15.19 Reference Documentation

# QWebEngineCertificateError Class

The QWebEngineCertificateError class provides information about a certificate error. More...

Header: | #include <QWebEngineCertificateError>
qmake: | QT += webenginewidgets
Since: | Qt 5.4

This class was introduced in Qt 5.4.

- List of all members, including inherited members

## Public Types

enum | Error { SslPinnedKeyNotInCertificateChain, CertificateCommonNameInvalid, CertificateDateInvalid, CertificateAuthorityInvalid, CertificateContainsErrors, …, CertificateKnownInterceptionBlocked }

## Public Functions

bool | answered() const
QList<QSslCertificate> | certificateChain() const
void | defer()
bool | deferred() const
Error | error() const
QString | errorDescription() const
void | ignoreCertificateError()
bool | isOverridable() const
void | rejectCertificate()
QUrl | url() const

## Detailed Description

Provides information about a certificate error. This class is used as a parameter of QWebEnginePage::certificateError().

## Member Type Documentation

### enum QWebEngineCertificateError::Error

This enum describes the type of certificate error encountered.

The values of this enum type match the SSL errors Chromium provides. QSslError::SslError values are not used directly, because the Qt error categories cannot be mapped to the Chromium error categories.

Constant | Value | Description
--- | --- | ---
`QWebEngineCertificateError::SslPinnedKeyNotInCertificateChain` | `-150` | The certificate did not match the built-in public keys pinned for the host name.
`QWebEngineCertificateError::CertificateCommonNameInvalid` | `-200` | The certificate's common name did not match the host name.
`QWebEngineCertificateError::CertificateDateInvalid` | `-201` | The certificate is not valid at the current date and time.
`QWebEngineCertificateError::CertificateAuthorityInvalid` | `-202` | The certificate is not signed by a trusted authority.
`QWebEngineCertificateError::CertificateContainsErrors` | `-203` | The certificate contains errors.
`QWebEngineCertificateError::CertificateNoRevocationMechanism` | `-204` | The certificate has no mechanism for determining if it has been revoked.
`QWebEngineCertificateError::CertificateUnableToCheckRevocation` | `-205` | Revocation information for the certificate is not available.
`QWebEngineCertificateError::CertificateRevoked` | `-206` | The certificate has been revoked.
`QWebEngineCertificateError::CertificateInvalid` | `-207` | The certificate is invalid.
`QWebEngineCertificateError::CertificateWeakSignatureAlgorithm` | `-208` | The certificate is signed using a weak signature algorithm.
`QWebEngineCertificateError::CertificateNonUniqueName` | `-210` | The host name specified in the certificate is not unique.
`QWebEngineCertificateError::CertificateWeakKey` | `-211` | The certificate contains a weak key.
`QWebEngineCertificateError::CertificateNameConstraintViolation` | `-212` | The certificate claimed DNS names that are in violation of name constraints.
`QWebEngineCertificateError::CertificateValidityTooLong` | `-213` | The certificate has a validity period that is too long. (Added in Qt 5.7)
`QWebEngineCertificateError::CertificateTransparencyRequired` | `-214` | Certificate Transparency was required for this connection, but the server did not provide CT information that complied with the policy. (Added in Qt 5.8)
`QWebEngineCertificateError::CertificateKnownInterceptionBlocked` | `-217` | The certificate is known to be used for interception by an entity other the device owner. (Added in 5.15)

## Member Function Documentation

### bool QWebEngineCertificateError::answered() const

Returns `true` if the error was explicitly rejected or ignored.

This function was introduced in Qt 5.14.

### QList<QSslCertificate> QWebEngineCertificateError::certificateChain() const

Returns the peer's chain of digital certificates.

Chain starts with the peer's immediate certificate and ending with the CA's certificate.

This function was introduced in Qt 5.14.

### void QWebEngineCertificateError::defer()

Marks the certificate error for delayed handling.

This function should be called when there is a need to postpone the decision whether to ignore a certificate error, for example, while waiting for user input. When called, the function pauses the URL request until ignoreCertificateError() or rejectCertificate() is called.

Note: It is only possible to defer overridable certificate errors.

This function was introduced in Qt 5.14.

See also isOverridable() and deferred().

### bool QWebEngineCertificateError::deferred() const

Returns whether the decision for error handling was delayed and the URL load was halted.

This function was introduced in Qt 5.14.

### Error QWebEngineCertificateError::error() const

Returns the type of the error.

See also errorDescription() and isOverridable().

### QString QWebEngineCertificateError::errorDescription() const

Returns a short localized human-readable description of the error.

See also error(), url(), and isOverridable().

### void QWebEngineCertificateError::ignoreCertificateError()

Ignores the certificate error and continues the loading of the requested URL.

This function was introduced in Qt 5.14.

### bool QWebEngineCertificateError::isOverridable() const

Returns whether this error can be overridden and accepted.

See also error() and errorDescription().

### void QWebEngineCertificateError::rejectCertificate()

Rejects the certificate and aborts the loading of the requested URL.

This function was introduced in Qt 5.14.

### QUrl QWebEngineCertificateError::url() const

Returns the URL that triggered the error.

See also error() and errorDescription().