Avaya Client Services API Reference (iOS)

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Instance Methods | List of all members
<CSCredentialProvider> Protocol Reference

`#import <CSCredentialProvider.h>`

Inherits <NSObject>.

## Instance Methods
(void) | - credentialProviderDidReceiveChallenge:completionHandler:
| Request a credential in response to a challenge. More...
(void) | - credentialProviderDidReceiveCredentialAccepted:
| Report the credential obtained from the previous credential challenge request has been accepted. More...
(void) | - credentialProviderDidReceiveChallengeCancelled:
| Report the previous credential challenge request has been cancelled. More...
(BOOL) | - supportsPreEmptiveChallenge
| Checks whether preemptive challenge is supported by the associated credential provider. More...

## Method Documentation

- (void) credentialProviderDidReceiveChallenge: |  | (CSChallenge *) | challenge
completionHandler: |  | (void(^)(CSUserCredential *credential)) | completionHandler

Request a credential in response to a challenge.

The challenge contains information about the credentials needed and the number of previous failures (if any). When credentials are available that can satisfy the challenge, the completionHandler should be invoked. This need not happen synchronously.

Note that if, when originally passing the ICredentialProvider interface pointer into the SDK via a user configuration structure, a username/domain was also provided in that same structure, then that same username/domain must be provided in the ICredential passed to the completion handler.

Also note that if no credentials are available that can satisfy the challenge, it is expected that a nil ICredential will be passed to the completion handler to complete the challenge/response transaction.

Parameters

  challenge | Information about the challenge that prompted the caller to request a credential.
  completionHandler | The callback to invoke with the credential once it is known.

- (void) credentialProviderDidReceiveChallengeCancelled: |  | (CSChallenge *) | challenge |

Report the previous credential challenge request has been cancelled.

Credential Provider can ignore the previous request.

Parameters

  challenge | Information about the challenge that prompted the caller to request a credential.

- (void) credentialProviderDidReceiveCredentialAccepted: |  | (CSChallenge *) | challenge |

Report the credential obtained from the previous credential challenge request has been accepted.

Parameters

  challenge | Information about the challenge that prompted the caller to request a credential.

- (BOOL) supportsPreEmptiveChallenge |  |  |
| optional

Checks whether preemptive challenge is supported by the associated credential provider.

A pre-emptive challenge will be issued prior to sending an request to the server. It can be used in some scenarios (like OAuth), where the UI has credentials that the server can validate. Default value is false. Some authentication schemes (like digest) require that an unauthenticated request be sent to the server to generate a challenge response from the server. An interface that implements CredentialProvider and responds with OAuth tokens shall return true when this method is invoked. On contrary, an interface that returns username/password type, shall return false.

Returns
  YES if preemptive challenge is supported

The documentation for this protocol was generated from the following file:

- CSCredentialProvider.h