henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004, Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | // Handling of certificates and keypairs for SSLStreamAdapter's peer mode. |
| 29 | #if HAVE_CONFIG_H |
| 30 | #include "config.h" |
| 31 | #endif // HAVE_CONFIG_H |
| 32 | |
| 33 | #include "talk/base/sslidentity.h" |
| 34 | |
| 35 | #include <string> |
| 36 | |
wu@webrtc.org | 5aed3bb | 2013-08-10 07:18:04 +0000 | [diff] [blame] | 37 | #include "talk/base/base64.h" |
| 38 | #include "talk/base/logging.h" |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 39 | #include "talk/base/sslconfig.h" |
| 40 | |
| 41 | #if SSL_USE_SCHANNEL |
| 42 | |
| 43 | #elif SSL_USE_OPENSSL // !SSL_USE_SCHANNEL |
| 44 | |
| 45 | #include "talk/base/opensslidentity.h" |
| 46 | |
| 47 | #elif SSL_USE_NSS // !SSL_USE_SCHANNEL && !SSL_USE_OPENSSL |
| 48 | |
| 49 | #include "talk/base/nssidentity.h" |
| 50 | |
| 51 | #endif // SSL_USE_SCHANNEL |
| 52 | |
| 53 | namespace talk_base { |
| 54 | |
wu@webrtc.org | 5aed3bb | 2013-08-10 07:18:04 +0000 | [diff] [blame] | 55 | const char kPemTypeCertificate[] = "CERTIFICATE"; |
| 56 | const char kPemTypeRsaPrivateKey[] = "RSA PRIVATE KEY"; |
| 57 | |
| 58 | bool SSLIdentity::PemToDer(const std::string& pem_type, |
| 59 | const std::string& pem_string, |
| 60 | std::string* der) { |
| 61 | // Find the inner body. We need this to fulfill the contract of |
| 62 | // returning pem_length. |
| 63 | size_t header = pem_string.find("-----BEGIN " + pem_type + "-----"); |
| 64 | if (header == std::string::npos) |
| 65 | return false; |
| 66 | |
| 67 | size_t body = pem_string.find("\n", header); |
| 68 | if (body == std::string::npos) |
| 69 | return false; |
| 70 | |
| 71 | size_t trailer = pem_string.find("-----END " + pem_type + "-----"); |
| 72 | if (trailer == std::string::npos) |
| 73 | return false; |
| 74 | |
| 75 | std::string inner = pem_string.substr(body + 1, trailer - (body + 1)); |
| 76 | |
| 77 | *der = Base64::Decode(inner, Base64::DO_PARSE_WHITE | |
| 78 | Base64::DO_PAD_ANY | |
| 79 | Base64::DO_TERM_BUFFER); |
| 80 | return true; |
| 81 | } |
| 82 | |
| 83 | std::string SSLIdentity::DerToPem(const std::string& pem_type, |
| 84 | const unsigned char* data, |
| 85 | size_t length) { |
| 86 | std::stringstream result; |
| 87 | |
| 88 | result << "-----BEGIN " << pem_type << "-----\n"; |
| 89 | |
| 90 | std::string b64_encoded; |
| 91 | Base64::EncodeFromArray(data, length, &b64_encoded); |
| 92 | |
| 93 | // Divide the Base-64 encoded data into 64-character chunks, as per |
| 94 | // 4.3.2.4 of RFC 1421. |
| 95 | static const size_t kChunkSize = 64; |
| 96 | size_t chunks = (b64_encoded.size() + (kChunkSize - 1)) / kChunkSize; |
| 97 | for (size_t i = 0, chunk_offset = 0; i < chunks; |
| 98 | ++i, chunk_offset += kChunkSize) { |
| 99 | result << b64_encoded.substr(chunk_offset, kChunkSize); |
| 100 | result << "\n"; |
| 101 | } |
| 102 | |
| 103 | result << "-----END " << pem_type << "-----\n"; |
| 104 | |
| 105 | return result.str(); |
| 106 | } |
| 107 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 108 | #if SSL_USE_SCHANNEL |
| 109 | |
| 110 | SSLCertificate* SSLCertificate::FromPEMString(const std::string& pem_string) { |
| 111 | return NULL; |
| 112 | } |
| 113 | |
| 114 | SSLIdentity* SSLIdentity::Generate(const std::string& common_name) { |
| 115 | return NULL; |
| 116 | } |
| 117 | |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 118 | SSLIdentity* GenerateForTest(const SSLIdentityParams& params) { |
| 119 | return NULL; |
| 120 | } |
| 121 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 122 | SSLIdentity* SSLIdentity::FromPEMStrings(const std::string& private_key, |
| 123 | const std::string& certificate) { |
| 124 | return NULL; |
| 125 | } |
| 126 | |
| 127 | #elif SSL_USE_OPENSSL // !SSL_USE_SCHANNEL |
| 128 | |
| 129 | SSLCertificate* SSLCertificate::FromPEMString(const std::string& pem_string) { |
| 130 | return OpenSSLCertificate::FromPEMString(pem_string); |
| 131 | } |
| 132 | |
| 133 | SSLIdentity* SSLIdentity::Generate(const std::string& common_name) { |
| 134 | return OpenSSLIdentity::Generate(common_name); |
| 135 | } |
| 136 | |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 137 | SSLIdentity* SSLIdentity::GenerateForTest(const SSLIdentityParams& params) { |
| 138 | return OpenSSLIdentity::GenerateForTest(params); |
| 139 | } |
| 140 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 141 | SSLIdentity* SSLIdentity::FromPEMStrings(const std::string& private_key, |
| 142 | const std::string& certificate) { |
| 143 | return OpenSSLIdentity::FromPEMStrings(private_key, certificate); |
| 144 | } |
| 145 | |
| 146 | #elif SSL_USE_NSS // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL |
| 147 | |
| 148 | SSLCertificate* SSLCertificate::FromPEMString(const std::string& pem_string) { |
| 149 | return NSSCertificate::FromPEMString(pem_string); |
| 150 | } |
| 151 | |
| 152 | SSLIdentity* SSLIdentity::Generate(const std::string& common_name) { |
| 153 | return NSSIdentity::Generate(common_name); |
| 154 | } |
| 155 | |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 156 | SSLIdentity* SSLIdentity::GenerateForTest(const SSLIdentityParams& params) { |
| 157 | return NSSIdentity::GenerateForTest(params); |
| 158 | } |
| 159 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 160 | SSLIdentity* SSLIdentity::FromPEMStrings(const std::string& private_key, |
| 161 | const std::string& certificate) { |
| 162 | return NSSIdentity::FromPEMStrings(private_key, certificate); |
| 163 | } |
| 164 | |
| 165 | #else // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL && !SSL_USE_NSS |
| 166 | |
| 167 | #error "No SSL implementation" |
| 168 | |
| 169 | #endif // SSL_USE_SCHANNEL |
| 170 | |
| 171 | } // namespace talk_base |