1 /*
2  *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_BASE_FAKESSLIDENTITY_H_
12 #define WEBRTC_BASE_FAKESSLIDENTITY_H_
13 
14 #include <algorithm>
15 #include <vector>
16 
17 #include "webrtc/base/messagedigest.h"
18 #include "webrtc/base/sslidentity.h"
19 
20 namespace rtc {
21 
22 class FakeSSLCertificate : public rtc::SSLCertificate {
23  public:
24   // SHA-1 is the default digest algorithm because it is available in all build
25   // configurations used for unit testing.
FakeSSLCertificate(const std::string & data)26   explicit FakeSSLCertificate(const std::string& data)
27       : data_(data), digest_algorithm_(DIGEST_SHA_1) {}
FakeSSLCertificate(const std::vector<std::string> & certs)28   explicit FakeSSLCertificate(const std::vector<std::string>& certs)
29       : data_(certs.front()), digest_algorithm_(DIGEST_SHA_1) {
30     std::vector<std::string>::const_iterator it;
31     // Skip certs[0].
32     for (it = certs.begin() + 1; it != certs.end(); ++it) {
33       certs_.push_back(FakeSSLCertificate(*it));
34     }
35   }
GetReference()36   virtual FakeSSLCertificate* GetReference() const {
37     return new FakeSSLCertificate(*this);
38   }
ToPEMString()39   virtual std::string ToPEMString() const {
40     return data_;
41   }
ToDER(Buffer * der_buffer)42   virtual void ToDER(Buffer* der_buffer) const {
43     std::string der_string;
44     VERIFY(SSLIdentity::PemToDer(kPemTypeCertificate, data_, &der_string));
45     der_buffer->SetData(der_string.c_str(), der_string.size());
46   }
set_digest_algorithm(const std::string & algorithm)47   void set_digest_algorithm(const std::string& algorithm) {
48     digest_algorithm_ = algorithm;
49   }
GetSignatureDigestAlgorithm(std::string * algorithm)50   virtual bool GetSignatureDigestAlgorithm(std::string* algorithm) const {
51     *algorithm = digest_algorithm_;
52     return true;
53   }
ComputeDigest(const std::string & algorithm,unsigned char * digest,size_t size,size_t * length)54   virtual bool ComputeDigest(const std::string& algorithm,
55                              unsigned char* digest,
56                              size_t size,
57                              size_t* length) const {
58     *length = rtc::ComputeDigest(algorithm, data_.c_str(), data_.size(),
59                                        digest, size);
60     return (*length != 0);
61   }
GetChain(SSLCertChain ** chain)62   virtual bool GetChain(SSLCertChain** chain) const {
63     if (certs_.empty())
64       return false;
65     std::vector<SSLCertificate*> new_certs(certs_.size());
66     std::transform(certs_.begin(), certs_.end(), new_certs.begin(), DupCert);
67     *chain = new SSLCertChain(new_certs);
68     std::for_each(new_certs.begin(), new_certs.end(), DeleteCert);
69     return true;
70   }
71 
72  private:
DupCert(FakeSSLCertificate cert)73   static FakeSSLCertificate* DupCert(FakeSSLCertificate cert) {
74     return cert.GetReference();
75   }
DeleteCert(SSLCertificate * cert)76   static void DeleteCert(SSLCertificate* cert) { delete cert; }
77   std::string data_;
78   std::vector<FakeSSLCertificate> certs_;
79   std::string digest_algorithm_;
80 };
81 
82 class FakeSSLIdentity : public rtc::SSLIdentity {
83  public:
FakeSSLIdentity(const std::string & data)84   explicit FakeSSLIdentity(const std::string& data) : cert_(data) {}
FakeSSLIdentity(const FakeSSLCertificate & cert)85   explicit FakeSSLIdentity(const FakeSSLCertificate& cert) : cert_(cert) {}
GetReference()86   virtual FakeSSLIdentity* GetReference() const {
87     return new FakeSSLIdentity(*this);
88   }
certificate()89   virtual const FakeSSLCertificate& certificate() const { return cert_; }
90  private:
91   FakeSSLCertificate cert_;
92 };
93 
94 }  // namespace rtc
95 
96 #endif  // WEBRTC_BASE_FAKESSLIDENTITY_H_
97