naiveproxy/net/cert/internal/cert_issuer_source.h

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2018-01-28 19:30:36 +03:00
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_CERT_INTERNAL_CERT_ISSUER_SOURCE_H_
#define NET_CERT_INTERNAL_CERT_ISSUER_SOURCE_H_
#include <memory>
#include <vector>
#include "net/base/net_export.h"
#include "net/cert/internal/parsed_certificate.h"
namespace net {
// Interface for looking up issuers of a certificate during path building.
// Provides a synchronous and asynchronous method for retrieving issuers, so the
// path builder can try to complete synchronously first. The caller is expected
// to call SyncGetIssuersOf first, see if it can make progress with those
// results, and if not, then fall back to calling AsyncGetIssuersOf.
// An implementations may choose to return results from either one of the Get
// methods, or from both.
class NET_EXPORT CertIssuerSource {
public:
class NET_EXPORT Request {
public:
Request() = default;
// Destruction of the Request cancels it.
virtual ~Request() = default;
// Retrieves issuers and appends them to |issuers|.
//
// GetNext should be called again to retrieve any remaining issuers.
//
// If no issuers are left then |issuers| will not be modified. This
// indicates that the issuers have been exhausted and GetNext() should
// not be called again.
virtual void GetNext(ParsedCertificateList* issuers) = 0;
private:
DISALLOW_COPY_AND_ASSIGN(Request);
};
virtual ~CertIssuerSource() = default;
// Finds certificates whose Subject matches |cert|'s Issuer.
// Matches are appended to |issuers|. Any existing contents of |issuers| will
// not be modified. If the implementation does not support synchronous
// lookups, or if there are no matches, |issuers| is not modified.
virtual void SyncGetIssuersOf(const ParsedCertificate* cert,
ParsedCertificateList* issuers) = 0;
// Finds certificates whose Subject matches |cert|'s Issuer.
// If the implementation does not support asynchronous lookups or can
// determine synchronously that it would return no results, |*out_req|
// will be set to nullptr.
//
// Otherwise a request is started and saved to |out_req|. The results can be
// read through the Request interface.
virtual void AsyncGetIssuersOf(const ParsedCertificate* cert,
std::unique_ptr<Request>* out_req) = 0;
};
} // namespace net
#endif // NET_CERT_INTERNAL_CERT_ISSUER_SOURCE_H_