ndn::security::v2::CertificateFetcherFromNetwork Class Reference

Fetch missing keys from the network. More...

#include <ndn-cxx/security/certificate-fetcher-from-network.hpp>

Inheritance diagram for ndn::security::v2::CertificateFetcherFromNetwork:

Collaboration diagram for ndn::security::v2::CertificateFetcherFromNetwork:

Public Types
using	ValidationContinuation = std::function< void(const Certificate &cert, const shared_ptr< ValidationState > &state)>

Public Member Functions
	CertificateFetcherFromNetwork (Face &face)
void	fetch (const shared_ptr< CertificateRequest > &certRequest, const shared_ptr< ValidationState > &state, const ValidationContinuation &continueValidation)
	Asynchronously fetch certificate. More...
virtual void	setCertificateStorage (CertificateStorage &certStorage)
	Assign certificate storage to check known certificate and to cache unverified ones. More...

Protected Member Functions
void	dataCallback (const Data &data, const shared_ptr< CertificateRequest > &certRequest, const shared_ptr< ValidationState > &state, const ValidationContinuation &continueValidation)
	Callback invoked when certificate is retrieved. More...
void	doFetch (const shared_ptr< CertificateRequest > &certRequest, const shared_ptr< ValidationState > &state, const ValidationContinuation &continueValidation) override
	Asynchronous certificate fetching implementation. More...
void	nackCallback (const lp::Nack &nack, const shared_ptr< CertificateRequest > &certRequest, const shared_ptr< ValidationState > &state, const ValidationContinuation &continueValidation)
	Callback invoked when interest for fetching certificate gets NACKed. More...
void	timeoutCallback (const shared_ptr< CertificateRequest > &certRequest, const shared_ptr< ValidationState > &state, const ValidationContinuation &continueValidation)
	Callback invoked when interest for fetching certificate times out. More...

Protected Attributes
CertificateStorage *	m_certStorage
Face &	m_face
Scheduler	m_scheduler

Detailed Description

Fetch missing keys from the network.

Definition at line 43 of file certificate-fetcher-from-network.hpp.

Member Typedef Documentation

ValidationContinuation

using ndn::security::v2::CertificateFetcher::ValidationContinuation = std::function<void(const Certificate& cert, const shared_ptr<ValidationState>& state)>

inherited

Definition at line 42 of file certificate-fetcher.hpp.

Constructor & Destructor Documentation

CertificateFetcherFromNetwork()

ndn::security::v2::CertificateFetcherFromNetwork::CertificateFetcherFromNetwork ( Face &  face )

explicit

Definition at line 38 of file certificate-fetcher-from-network.cpp.

Member Function Documentation

dataCallback()

void ndn::security::v2::CertificateFetcherFromNetwork::dataCallback ( const Data &  data, const shared_ptr< CertificateRequest > &  certRequest, const shared_ptr< ValidationState > &  state, const ValidationContinuation &  continueValidation  )

protected

Callback invoked when certificate is retrieved.

Definition at line 62 of file certificate-fetcher-from-network.cpp.

doFetch()

void ndn::security::v2::CertificateFetcherFromNetwork::doFetch ( const shared_ptr< CertificateRequest > &  certRequest, const shared_ptr< ValidationState > &  state, const ValidationContinuation &  continueValidation  )

overrideprotectedvirtual

Asynchronous certificate fetching implementation.

Implements ndn::security::v2::CertificateFetcher.

Definition at line 45 of file certificate-fetcher-from-network.cpp.

fetch()

void ndn::security::v2::CertificateFetcher::fetch ( const shared_ptr< CertificateRequest > &  certRequest, const shared_ptr< ValidationState > &  state, const ValidationContinuation &  continueValidation  )

inherited

Asynchronously fetch certificate.

Precondition

m_certStorage != nullptr

If the requested certificate exists in the storage, then this method will immediately call continueValidation with the certification. If certificate is not available, the implementation-specific doFetch will be called to asynchronously fetch certificate. The successfully retrieved certificate will be automatically added to the unverified cache of the certificate storage.

When the requested certificate is retrieved, continueValidation is called. Otherwise, the fetcher implementation call state->failed() with the appropriate error code and diagnostic message.

Definition at line 50 of file certificate-fetcher.cpp.

nackCallback()

void ndn::security::v2::CertificateFetcherFromNetwork::nackCallback ( const lp::Nack &  nack, const shared_ptr< CertificateRequest > &  certRequest, const shared_ptr< ValidationState > &  state, const ValidationContinuation &  continueValidation  )

protected

Callback invoked when interest for fetching certificate gets NACKed.

Retries with exponential backoff while certRequest->nRetriesLeft > 0

Definition at line 80 of file certificate-fetcher-from-network.cpp.

setCertificateStorage()

void ndn::security::v2::CertificateFetcher::setCertificateStorage ( CertificateStorage &  certStorage )

virtualinherited

Assign certificate storage to check known certificate and to cache unverified ones.

Note

The supplied certStorage should be valid for the lifetime of CertificateFetcher

Reimplemented in ndn::security::v2::CertificateBundleFetcher.

Definition at line 44 of file certificate-fetcher.cpp.

timeoutCallback()

void ndn::security::v2::CertificateFetcherFromNetwork::timeoutCallback ( const shared_ptr< CertificateRequest > &  certRequest, const shared_ptr< ValidationState > &  state, const ValidationContinuation &  continueValidation  )

protected

Callback invoked when interest for fetching certificate times out.

It will retry if certRequest->nRetriesLeft > 0

Definition at line 101 of file certificate-fetcher-from-network.cpp.

Member Data Documentation

m_certStorage

CertificateStorage* ndn::security::v2::CertificateFetcher::m_certStorage

protectedinherited

Definition at line 84 of file certificate-fetcher.hpp.

m_face

Face& ndn::security::v2::CertificateFetcherFromNetwork::m_face

protected

Definition at line 82 of file certificate-fetcher-from-network.hpp.

m_scheduler

Scheduler ndn::security::v2::CertificateFetcherFromNetwork::m_scheduler

protected

Definition at line 83 of file certificate-fetcher-from-network.hpp.