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      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.
     26   explicit FakeSSLCertificate(const std::string& data)
     27       : data_(data), digest_algorithm_(DIGEST_SHA_1) {}
     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   }
     36   virtual FakeSSLCertificate* GetReference() const {
     37     return new FakeSSLCertificate(*this);
     38   }
     39   virtual std::string ToPEMString() const {
     40     return data_;
     41   }
     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   }
     47   void set_digest_algorithm(const std::string& algorithm) {
     48     digest_algorithm_ = algorithm;
     49   }
     50   virtual bool GetSignatureDigestAlgorithm(std::string* algorithm) const {
     51     *algorithm = digest_algorithm_;
     52     return true;
     53   }
     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   }
     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     return true;
     69   }
     70 
     71  private:
     72   static FakeSSLCertificate* DupCert(FakeSSLCertificate cert) {
     73     return cert.GetReference();
     74   }
     75   std::string data_;
     76   std::vector<FakeSSLCertificate> certs_;
     77   std::string digest_algorithm_;
     78 };
     79 
     80 class FakeSSLIdentity : public rtc::SSLIdentity {
     81  public:
     82   explicit FakeSSLIdentity(const std::string& data) : cert_(data) {}
     83   explicit FakeSSLIdentity(const FakeSSLCertificate& cert) : cert_(cert) {}
     84   virtual FakeSSLIdentity* GetReference() const {
     85     return new FakeSSLIdentity(*this);
     86   }
     87   virtual const FakeSSLCertificate& certificate() const { return cert_; }
     88  private:
     89   FakeSSLCertificate cert_;
     90 };
     91 
     92 }  // namespace rtc
     93 
     94 #endif  // WEBRTC_BASE_FAKESSLIDENTITY_H_
     95