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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "net/base/x509_certificate.h"
6 
7 #include "base/logging.h"
8 #include "net/base/android_network_library.h"
9 #include "net/base/cert_status_flags.h"
10 #include "net/base/cert_verify_result.h"
11 #include "net/base/net_errors.h"
12 
13 namespace net {
14 
Verify(const std::string & hostname,int flags,CertVerifyResult * verify_result) const15 int X509Certificate::Verify(const std::string& hostname,
16                             int flags,
17                             CertVerifyResult* verify_result) const {
18   verify_result->Reset();
19 
20   AndroidNetworkLibrary* lib = AndroidNetworkLibrary::GetSharedInstance();
21   if (!lib) {
22     LOG(ERROR) << "Rejecting verify as no net library installed";
23     verify_result->cert_status |= ERR_CERT_INVALID;
24     return MapCertStatusToNetError(verify_result->cert_status);
25   }
26 
27   OSCertHandles cert_handles(intermediate_ca_certs_);
28   // Make sure the peer's own cert is the first in the chain, if it's not
29   // already there.
30   if (cert_handles.empty() || cert_handles[0] != cert_handle_)
31     cert_handles.insert(cert_handles.begin(), cert_handle_);
32 
33   std::vector<std::string> cert_bytes;
34   cert_bytes.reserve(cert_handles.size());
35   for (OSCertHandles::const_iterator it = cert_handles.begin();
36        it != cert_handles.end(); ++it) {
37     cert_bytes.push_back(GetDEREncodedBytes(*it));
38   }
39 
40 
41   if (IsPublicKeyBlacklisted(verify_result->public_key_hashes)) {
42     verify_result->cert_status |= CERT_STATUS_AUTHORITY_INVALID;
43     return MapCertStatusToNetError(verify_result->cert_status);
44   }
45 
46   // TODO(joth): Fetch the authentication type from SSL rather than hardcode.
47   AndroidNetworkLibrary::VerifyResult result =
48       lib->VerifyX509CertChain(cert_bytes, hostname, "RSA");
49   switch (result) {
50     case AndroidNetworkLibrary::VERIFY_OK:
51       return OK;
52     case AndroidNetworkLibrary::VERIFY_BAD_HOSTNAME:
53       verify_result->cert_status |= CERT_STATUS_COMMON_NAME_INVALID;
54       break;
55     case AndroidNetworkLibrary::VERIFY_NO_TRUSTED_ROOT:
56       verify_result->cert_status |= CERT_STATUS_AUTHORITY_INVALID;
57       break;
58     case AndroidNetworkLibrary::VERIFY_INVOCATION_ERROR:
59     default:
60       verify_result->cert_status |= ERR_CERT_INVALID;
61       break;
62   }
63   return MapCertStatusToNetError(verify_result->cert_status);
64 }
65 
66 }  // namespace net
67 
68