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diff --git a/o3d/plugin/win/config.cc b/o3d/plugin/win/config.cc
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+/*
+ * Copyright 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+// This file contains code to check the hardware and software configuration of
+// the client machine:
+// - User agent (browser)
+// - Windows version
+// - GPU vendor
+
+// TODO: Waiting on posix updates to be able to include this in order
+//            to parse the useragent string for browser version.
+// #include <regex.h>
+#include <shlobj.h>
+#include <shlwapi.h>
+#include <tchar.h>
+#include <windows.h>
+#ifdef RENDERER_D3D9
+#include <d3d9.h>
+#endif
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+#include "base/logging.h"
+#include "plugin/cross/config.h"
+#include "plugin/cross/plugin_metrics.h"
+#include "core/cross/install_check.h"
+#include "third_party/nixysa/files/static_glue/npapi/common.h"
+
+// Check Windows version.
+bool CheckOSVersion(NPP npp) {
+  OSVERSIONINFOEX version = {sizeof(OSVERSIONINFOEX)};  // NOLINT
+  GetVersionEx(reinterpret_cast<OSVERSIONINFO *>(&version));
+  if (version.dwMajorVersion == 5 && version.dwMinorVersion == 1) {
+    // NT 5.1 = Windows XP
+    if (version.wServicePackMajor < 2) {
+      // TODO: internationalize messages.
+      std::string error = std::string("Windows XP Service Pack 2 is required.");
+      if (!AskUser(npp, error)) return false;
+    }
+  } else if (version.dwMajorVersion == 6 && version.dwMinorVersion == 0) {
+    // 6.0 is Vista or Server 2008; it's now worth a try.
+  } else {
+    std::string error = std::string("Unsupported Windows version.");
+    if (!AskUser(npp, error)) return false;
+  }
+  return true;
+}
+
+// Checks user agent string. We only allow Firefox, Chrome, and IE.
+bool CheckUserAgent(NPP npp, const std::string &user_agent) {
+  if (user_agent.find("Firefox") == user_agent.npos &&
+      user_agent.find("Chrome") == user_agent.npos &&
+      user_agent.find("MSIE") == user_agent.npos) {
+    std::string error = std::string("Unsupported user agent: ") + user_agent;
+    return AskUser(npp, error);
+  }
+  return true;
+}
+
+bool OpenDriverBlacklistFile(std::ifstream *input_file) {
+  CHECK(input_file);
+  CHECK(!input_file->is_open());
+
+  // Determine the full path.
+  // It will look something like:
+  // "c:\Documents and Settings\username\Application Data\Google\O3D\
+  //    driver_blacklist.txt"
+
+  TCHAR app_data_path[MAX_PATH];
+  HRESULT result = SHGetFolderPath(
+      NULL,
+      CSIDL_APPDATA,
+      NULL,
+      0,
+      app_data_path);
+
+  if (result != 0) {
+    return false;
+  }
+
+  PathAppend(app_data_path, _T("Google\\O3D\\driver_blacklist.txt"));
+  if (!PathFileExists(app_data_path)) {
+    return false;
+  }
+  input_file->open(app_data_path, std::ifstream::in);
+  return input_file->good();
+}
+
+bool GetUserConfigMetrics() {
+  // Check Windows version.
+  o3d::metric_system_type = o3d::SYSTEM_NAME_WIN;
+
+  OSVERSIONINFOEX version = {sizeof(OSVERSIONINFOEX)};  // NOLINT
+  GetVersionEx(reinterpret_cast<OSVERSIONINFO *>(&version));
+  o3d::metric_windows_major_version = version.dwMajorVersion;
+  o3d::metric_windows_minor_version = version.dwMinorVersion;
+  o3d::metric_windows_sp_major_version = version.wServicePackMajor;
+  o3d::metric_windows_sp_minor_version = version.wServicePackMinor;
+
+  // Check the device capabilities.
+#ifdef RENDERER_D3D9
+  // Check GPU vendor using D3D.
+  IDirect3D9 *d3d = Direct3DCreate9(D3D_SDK_VERSION);
+  if (!d3d) {
+    o3d::metric_direct3d_available.Set(false);
+    DLOG(ERROR) << "Direct3D9 is unavailable";
+    return false;
+  }
+  o3d::metric_direct3d_available.Set(true);
+  D3DADAPTER_IDENTIFIER9 identifier;
+  HRESULT hr = d3d->GetAdapterIdentifier(D3DADAPTER_DEFAULT, 0, &identifier);
+  D3DCAPS9 d3d_caps;
+  HRESULT caps_result = d3d->GetDeviceCaps(D3DADAPTER_DEFAULT,
+                                           D3DDEVTYPE_HAL,
+                                           &d3d_caps);
+  // Get GPU device information
+  if (hr != D3D_OK) {
+    DLOG(ERROR) << "Unable to get device ID";
+    return false;
+  }
+  o3d::metric_gpu_vendor_id = identifier.VendorId;
+  o3d::metric_gpu_device_id = identifier.DeviceId;
+  o3d::metric_gpu_driver_major_version = identifier.DriverVersion.LowPart;
+  o3d::metric_gpu_driver_minor_version = identifier.DriverVersion.HighPart;
+
+  // Need to release after we get the vram size
+  d3d->Release();
+
+  // Get shader versions
+  DWORD pixel_shader = d3d_caps.PixelShaderVersion;
+  o3d::metric_pixel_shader_main_version =
+      D3DSHADER_VERSION_MAJOR(pixel_shader);
+  o3d::metric_pixel_shader_sub_version =
+      D3DSHADER_VERSION_MINOR(pixel_shader);
+  DWORD vertex_shader = d3d_caps.VertexShaderVersion;
+  o3d::metric_vertex_shader_main_version =
+      D3DSHADER_VERSION_MAJOR(vertex_shader);
+  o3d::metric_vertex_shader_sub_version =
+      D3DSHADER_VERSION_MINOR(vertex_shader);
+
+  // Detemine if device can handle NPoT textures
+  o3d::metric_POW2_texture_caps.Set(
+      (d3d_caps.TextureCaps & D3DPTEXTURECAPS_POW2) != 0);
+  o3d::metric_NONPOW2CONDITIONAL_texture_caps.Set(
+      (d3d_caps.TextureCaps & D3DPTEXTURECAPS_NONPOW2CONDITIONAL) != 0);
+
+  o3d::metric_d3d_devcaps = d3d_caps.DevCaps;
+  o3d::metric_d3d_misccaps = d3d_caps.PrimitiveMiscCaps;
+  o3d::metric_d3d_rastercaps = d3d_caps.RasterCaps;
+  o3d::metric_d3d_zcmpcaps = d3d_caps.ZCmpCaps;
+  o3d::metric_d3d_srcblendcaps = d3d_caps.SrcBlendCaps;
+  o3d::metric_d3d_dstblendcaps = d3d_caps.DestBlendCaps;
+  o3d::metric_d3d_alphacaps = d3d_caps.AlphaCmpCaps;
+  o3d::metric_d3d_texcaps = d3d_caps.TextureCaps;
+  o3d::metric_d3d_texfiltercaps = d3d_caps.TextureFilterCaps;
+  o3d::metric_d3d_cubetexfiltercaps = d3d_caps.CubeTextureFilterCaps;
+  o3d::metric_d3d_texaddrcaps = d3d_caps.TextureAddressCaps;
+  o3d::metric_d3d_linecaps = d3d_caps.LineCaps;
+  o3d::metric_d3d_stencilcaps = d3d_caps.StencilCaps;
+  o3d::metric_d3d_texopcaps = d3d_caps.TextureOpCaps;
+  o3d::metric_d3d_vs20caps = d3d_caps.VS20Caps.Caps;
+  o3d::metric_d3d_vs20_dynflowctrldepth =
+      d3d_caps.VS20Caps.DynamicFlowControlDepth;
+  o3d::metric_d3d_vs20_numtemps =  d3d_caps.VS20Caps.NumTemps;
+  o3d::metric_d3d_vs20_staticflowctrldepth =
+      d3d_caps.VS20Caps.StaticFlowControlDepth;
+  o3d::metric_d3d_ps20caps = d3d_caps.PS20Caps.Caps;
+  o3d::metric_d3d_ps20_dynflowctrldepth =
+      d3d_caps.PS20Caps.DynamicFlowControlDepth;
+  o3d::metric_d3d_ps20_numtemps = d3d_caps.PS20Caps.NumTemps;
+  o3d::metric_d3d_ps20_staticflowctrldepth =
+      d3d_caps.PS20Caps.StaticFlowControlDepth;
+  o3d::metric_d3d_ps20_numinstrslots = d3d_caps.PS20Caps.NumInstructionSlots;
+#else
+  o3d::metric_direct3d_available.Set(false);
+#endif
+  return true;
+}
+
+bool GetUserAgentMetrics(NPP npp) {
+  // Check User agent so we can get the browser
+  // TODO: This is the best we could come up with for this in order to
+  //            go from browser to string.
+  GLUE_PROFILE_START(npp, "uagent");
+  std::string user_agent = NPN_UserAgent(npp);
+  GLUE_PROFILE_STOP(npp, "uagent");
+  // The Chrome user_agent string also contains Safari. Search for Chrome first.
+  if (std::string::npos != user_agent.find("Chrome")) {
+    o3d::metric_browser_type = o3d::BROWSER_NAME_CHROME;
+  } else if (std::string::npos != user_agent.find("Safari")) {
+    o3d::metric_browser_type = o3d::BROWSER_NAME_SAFARI;
+  } else if (std::string::npos != user_agent.find("Opera")) {
+    o3d::metric_browser_type = o3d::BROWSER_NAME_OPERA;
+  } else if (std::string::npos != user_agent.find("Firefox")) {
+    o3d::metric_browser_type = o3d::BROWSER_NAME_FIREFOX;
+  } else if (std::string::npos != user_agent.find("MSIE")) {
+    o3d::metric_browser_type = o3d::BROWSER_NAME_MSIE;
+  } else {
+    o3d::metric_browser_type = o3d::BROWSER_NAME_UNKNOWN;
+  }
+  return true;
+}