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Use volume serial number as device id

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This commit is contained in:
Cheng Zhao 2016-01-12 23:17:07 +08:00
parent 8832d7b77b
commit 57da8908b2
1 changed files with 36 additions and 1 deletions
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37
chromium_src/chrome/browser/renderer_host/pepper/pepper_flash_drm_host.cc
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@ -4,6 +4,8 @@
#include "chrome/browser/renderer_host/pepper/pepper_flash_drm_host.h"
#include <cmath>
#if defined(OS_WIN)
#include <Windows.h>
#endif
@ -12,12 +14,14 @@
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/strings/string_number_conversions.h"
#include "build/build_config.h"
#include "content/public/browser/browser_ppapi_host.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_security_policy.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/common/pepper_plugin_info.h"
#include "net/base/net_util.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/host/dispatch_host_message.h"
#include "ppapi/host/host_message_context.h"
@ -38,7 +42,30 @@ using content::BrowserPpapiHost;
namespace chrome {
namespace {
const char kVoucherFilename[] = "plugin.vch";
#if defined(OS_WIN)
bool GetSystemVolumeSerialNumber(std::string* number) {
// 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 = base::IntToString(std::abs(static_cast<int>(number_local)));
return true;
}
#endif
}
#if defined(OS_WIN)
@ -149,7 +176,15 @@ int32_t PepperFlashDRMHost::OnResourceMessageReceived(
int32_t PepperFlashDRMHost::OnHostMsgGetDeviceID(
ppapi::host::HostMessageContext* context) {
context->reply_msg = PpapiPluginMsg_FlashDRM_GetDeviceIDReply("");
static std::string id;
#if defined(OS_WIN)
if (id.empty() && !GetSystemVolumeSerialNumber(&id))
id = net::GetHostName();
#else
if (id.empty())
id = net::GetHostName();
#endif
context->reply_msg = PpapiPluginMsg_FlashDRM_GetDeviceIDReply(id);
return PP_OK;
}