Bug 1060179 - Import librlz for device identity generation on Windows. r=glandium,dmajor

content/media/gmp/moz.build

@@ -90,6 +90,11 @@ UNIFIED_SOURCES += [
     'GMPVideoPlaneImpl.cpp',
 ]
 
+if CONFIG['OS_TARGET'] == 'WINNT':
+  DIRS += [
+      'rlz',
+  ]
+
 IPDL_SOURCES += [
   'GMPTypes.ipdlh',
   'PGMP.ipdl',

content/media/gmp/rlz/COPYING

@@ -0,0 +1,14 @@
+Copyright 2010 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+

content/media/gmp/rlz/README.mozilla

@@ -0,0 +1,6 @@
+Code taken from rlz project: https://code.google.com/p/rlz/
+
+Revision: 134, then with unused code stripped out.
+
+Note: base/ contains wrappers/dummies to provide implementations of the
+Chromium APIs that this code relies upon.

content/media/gmp/rlz/base/memory/scoped_ptr.h

@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// The scoped_ptr.h our IPC copy of Chromium's code does not include
+// scoped_array, so adapt it to nsAutoArrayPtr here.
+
+#ifndef FAKE_SCOPED_PTR_H_
+#define FAKE_SCOPED_PTR_H_
+
+#include "mozilla/ArrayUtils.h"
+#include "nsAutoPtr.h"
+
+template<class T>
+class scoped_array : public nsAutoArrayPtr<T> {
+public:
+  scoped_array(T* t) : nsAutoArrayPtr<T>(t) {}
+  void reset(T* t) {
+    scoped_array<T> other(t);
+    operator=(other);
+  }
+};
+
+#define arraysize mozilla::ArrayLength
+
+#endif

content/media/gmp/rlz/base/string16.h

@@ -0,0 +1,12 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef FAKE_STRING16_H
+#define FAKE_STRING16_H
+
+#include <string>
+typedef std::wstring string16;
+
+#endif

content/media/gmp/rlz/lib/assert.h

@@ -0,0 +1,14 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef FAKE_ASSERT_H_
+#define FAKE_ASSERT_H_
+
+#include <assert.h>
+
+#define ASSERT_STRING(x) { assert(false); }
+#define VERIFY(x) { assert(x); };
+
+#endif

content/media/gmp/rlz/lib/machine_id.h

@@ -0,0 +1,21 @@
+// Copyright 2012 Google Inc. All Rights Reserved.
+// Use of this source code is governed by an Apache-style license that can be
+// found in the COPYING file.
+
+#ifndef RLZ_LIB_MACHINE_ID_H_
+#define RLZ_LIB_MACHINE_ID_H_
+
+#include "base/string16.h"
+
+#include <string>
+
+namespace rlz_lib {
+
+// Retrieves a raw machine identifier string and a machine-specific
+// 4 byte value. GetMachineId() will SHA1 |data|, append |more_data|, compute
+// the Crc8 of that, and return a hex-encoded string of that data.
+bool GetRawMachineId(string16* data, int* more_data);
+
+}  // namespace rlz_lib
+
+#endif  // RLZ_LIB_MACHINE_ID_H_

content/media/gmp/rlz/lib/string_utils.cc

@@ -0,0 +1,34 @@
+// Copyright 2010 Google Inc. All Rights Reserved.
+// Use of this source code is governed by an Apache-style license that can be
+// found in the COPYING file.
+//
+// String manipulation functions used in the RLZ library.
+
+#include "rlz/lib/string_utils.h"
+
+namespace rlz_lib {
+
+bool BytesToString(const unsigned char* data,
+                   int data_len,
+                   std::string* string) {
+  if (!string)
+    return false;
+
+  string->clear();
+  if (data_len < 1 || !data)
+    return false;
+
+  static const char kHex[] = "0123456789ABCDEF";
+
+  // Fix the buffer size to begin with to avoid repeated re-allocation.
+  string->resize(data_len * 2);
+  int index = data_len;
+  while (index--) {
+    string->at(2 * index) = kHex[data[index] >> 4];  // high digit
+    string->at(2 * index + 1) = kHex[data[index] & 0x0F];  // low digit
+  }
+
+  return true;
+}
+
+}  // namespace rlz_lib

content/media/gmp/rlz/lib/string_utils.h

@@ -0,0 +1,20 @@
+// Copyright 2010 Google Inc. All Rights Reserved.
+// Use of this source code is governed by an Apache-style license that can be
+// found in the COPYING file.
+//
+// String manipulation functions used in the RLZ library.
+
+#ifndef RLZ_LIB_STRING_UTILS_H_
+#define RLZ_LIB_STRING_UTILS_H_
+
+#include <string>
+
+namespace rlz_lib {
+
+bool BytesToString(const unsigned char* data,
+                   int data_len,
+                   std::string* string);
+
+};  // namespace
+
+#endif  // RLZ_LIB_STRING_UTILS_H_

content/media/gmp/rlz/moz.build

@@ -0,0 +1,20 @@
+# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Note: build rlz in its own moz.build, so it doesn't pickup any of
+# Chromium IPC's headers used in the moz.build of the parent file.
+
+UNIFIED_SOURCES += [
+    'lib/string_utils.cc',
+    'win/lib/machine_id_win.cc',
+]
+
+FINAL_LIBRARY = 'xul'
+FAIL_ON_WARNINGS = True
+
+LOCAL_INCLUDES += [
+    '..',
+]

content/media/gmp/rlz/win/lib/machine_id_win.cc

@@ -0,0 +1,131 @@
+// Copyright 2011 Google Inc. All Rights Reserved.
+// Use of this source code is governed by an Apache-style license that can be
+// found in the COPYING file.
+
+#include <windows.h>
+#include <Sddl.h>  // For ConvertSidToStringSidW.
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/string16.h"
+#include "rlz/lib/assert.h"
+
+namespace rlz_lib {
+
+namespace {
+
+bool GetSystemVolumeSerialNumber(int* number) {
+  if (!number)
+    return false;
+
+  *number = 0;
+
+  // Find the system root path (e.g: C:\).
+  wchar_t system_path[MAX_PATH + 1];
+  if (!GetSystemDirectoryW(system_path, MAX_PATH))
+    return false;
+
+  wchar_t* first_slash = wcspbrk(system_path, L"\\/");
+  if (first_slash != NULL)
+    *(first_slash + 1) = 0;
+
+  DWORD number_local = 0;
+  if (!GetVolumeInformationW(system_path, NULL, 0, &number_local, NULL, NULL,
+                             NULL, 0))
+    return false;
+
+  *number = (int)number_local;
+  return true;
+}
+
+bool GetComputerSid(const wchar_t* account_name, SID* sid, DWORD sid_size) {
+  static const DWORD kStartDomainLength = 128;  // reasonable to start with
+
+  scoped_array<wchar_t> domain_buffer(new wchar_t[kStartDomainLength]);
+  DWORD domain_size = kStartDomainLength;
+  DWORD sid_dword_size = sid_size;
+  SID_NAME_USE sid_name_use;
+
+  BOOL success = ::LookupAccountNameW(NULL, account_name, sid,
+                                      &sid_dword_size, domain_buffer.get(),
+                                      &domain_size, &sid_name_use);
+  if (!success && ::GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+    // We could have gotten the insufficient buffer error because
+    // one or both of sid and szDomain was too small. Check for that
+    // here.
+    if (sid_dword_size > sid_size)
+      return false;
+
+    if (domain_size > kStartDomainLength)
+      domain_buffer.reset(new wchar_t[domain_size]);
+
+    success = ::LookupAccountNameW(NULL, account_name, sid, &sid_dword_size,
+                                   domain_buffer.get(), &domain_size,
+                                   &sid_name_use);
+  }
+
+  return success != FALSE;
+}
+
+std::wstring ConvertSidToString(SID* sid) {
+  std::wstring sid_string;
+#if _WIN32_WINNT >= 0x500
+  wchar_t* sid_buffer = NULL;
+  if (ConvertSidToStringSidW(sid, &sid_buffer)) {
+    sid_string = sid_buffer;
+    LocalFree(sid_buffer);
+  }
+#else
+  SID_IDENTIFIER_AUTHORITY* sia = ::GetSidIdentifierAuthority(sid);
+
+  if(sia->Value[0] || sia->Value[1]) {
+    base::SStringPrintf(
+        &sid_string, L"S-%d-0x%02hx%02hx%02hx%02hx%02hx%02hx",
+        SID_REVISION, (USHORT)sia->Value[0], (USHORT)sia->Value[1],
+        (USHORT)sia->Value[2], (USHORT)sia->Value[3], (USHORT)sia->Value[4],
+        (USHORT)sia->Value[5]);
+  } else {
+    ULONG authority = 0;
+    for (int i = 2; i < 6; ++i) {
+      authority <<= 8;
+      authority |= sia->Value[i];
+    }
+    base::SStringPrintf(&sid_string, L"S-%d-%lu", SID_REVISION, authority);
+  }
+
+  int sub_auth_count = *::GetSidSubAuthorityCount(sid);
+  for(int i = 0; i < sub_auth_count; ++i)
+    base::StringAppendF(&sid_string, L"-%lu", *::GetSidSubAuthority(sid, i));
+#endif
+
+  return sid_string;
+}
+
+}  // namespace
+
+bool GetRawMachineId(string16* sid_string, int* volume_id) {
+  // Calculate the Windows SID.
+
+  wchar_t computer_name[MAX_COMPUTERNAME_LENGTH + 1] = {0};
+  DWORD size = arraysize(computer_name);
+
+  if (!GetComputerNameW(computer_name, &size)) {
+    return false;
+  }
+  char sid_buffer[SECURITY_MAX_SID_SIZE];
+  SID* sid = reinterpret_cast<SID*>(sid_buffer);
+  if (GetComputerSid(computer_name, sid, SECURITY_MAX_SID_SIZE)) {
+    *sid_string = ConvertSidToString(sid);
+  }
+
+  // Get the system drive volume serial number.
+  *volume_id = 0;
+  if (!GetSystemVolumeSerialNumber(volume_id)) {
+    ASSERT_STRING("GetMachineId: Failed to retrieve volume serial number");
+    *volume_id = 0;
+  }
+
+  return true;
+}
+
+}  // namespace rlz_lib