156 lines
4.3 KiB
C++
156 lines
4.3 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/base/winfirewall.h"
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#include "webrtc/base/win32.h"
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#include <comdef.h>
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#include <netfw.h>
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#define RELEASE(lpUnk) do { \
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if ((lpUnk) != NULL) { \
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(lpUnk)->Release(); \
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(lpUnk) = NULL; \
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} \
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} while (0)
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namespace rtc {
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//////////////////////////////////////////////////////////////////////
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// WinFirewall
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//////////////////////////////////////////////////////////////////////
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WinFirewall::WinFirewall() : mgr_(NULL), policy_(NULL), profile_(NULL) {
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}
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WinFirewall::~WinFirewall() {
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Shutdown();
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}
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bool WinFirewall::Initialize(HRESULT* result) {
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if (mgr_) {
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if (result) {
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*result = S_OK;
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}
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return true;
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}
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HRESULT hr = CoCreateInstance(__uuidof(NetFwMgr),
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0, CLSCTX_INPROC_SERVER,
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__uuidof(INetFwMgr),
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reinterpret_cast<void **>(&mgr_));
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if (SUCCEEDED(hr) && (mgr_ != NULL))
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hr = mgr_->get_LocalPolicy(&policy_);
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if (SUCCEEDED(hr) && (policy_ != NULL))
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hr = policy_->get_CurrentProfile(&profile_);
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if (result)
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*result = hr;
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return SUCCEEDED(hr) && (profile_ != NULL);
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}
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void WinFirewall::Shutdown() {
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RELEASE(profile_);
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RELEASE(policy_);
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RELEASE(mgr_);
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}
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bool WinFirewall::Enabled() const {
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if (!profile_)
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return false;
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VARIANT_BOOL fwEnabled = VARIANT_FALSE;
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profile_->get_FirewallEnabled(&fwEnabled);
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return (fwEnabled != VARIANT_FALSE);
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}
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bool WinFirewall::QueryAuthorized(const char* filename, bool* authorized)
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const {
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return QueryAuthorizedW(ToUtf16(filename).c_str(), authorized);
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}
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bool WinFirewall::QueryAuthorizedW(const wchar_t* filename, bool* authorized)
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const {
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*authorized = false;
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bool success = false;
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if (!profile_)
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return false;
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_bstr_t bfilename = filename;
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INetFwAuthorizedApplications* apps = NULL;
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HRESULT hr = profile_->get_AuthorizedApplications(&apps);
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if (SUCCEEDED(hr) && (apps != NULL)) {
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INetFwAuthorizedApplication* app = NULL;
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hr = apps->Item(bfilename, &app);
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if (SUCCEEDED(hr) && (app != NULL)) {
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VARIANT_BOOL fwEnabled = VARIANT_FALSE;
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hr = app->get_Enabled(&fwEnabled);
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app->Release();
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if (SUCCEEDED(hr)) {
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success = true;
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*authorized = (fwEnabled != VARIANT_FALSE);
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}
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} else if (hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND)) {
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// No entry in list of authorized apps
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success = true;
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} else {
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// Unexpected error
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}
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apps->Release();
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}
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return success;
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}
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bool WinFirewall::AddApplication(const char* filename,
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const char* friendly_name,
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bool authorized,
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HRESULT* result) {
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return AddApplicationW(ToUtf16(filename).c_str(),
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ToUtf16(friendly_name).c_str(), authorized, result);
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}
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bool WinFirewall::AddApplicationW(const wchar_t* filename,
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const wchar_t* friendly_name,
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bool authorized,
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HRESULT* result) {
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INetFwAuthorizedApplications* apps = NULL;
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HRESULT hr = profile_->get_AuthorizedApplications(&apps);
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if (SUCCEEDED(hr) && (apps != NULL)) {
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INetFwAuthorizedApplication* app = NULL;
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hr = CoCreateInstance(__uuidof(NetFwAuthorizedApplication),
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0, CLSCTX_INPROC_SERVER,
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__uuidof(INetFwAuthorizedApplication),
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reinterpret_cast<void **>(&app));
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if (SUCCEEDED(hr) && (app != NULL)) {
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_bstr_t bstr = filename;
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hr = app->put_ProcessImageFileName(bstr);
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bstr = friendly_name;
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if (SUCCEEDED(hr))
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hr = app->put_Name(bstr);
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if (SUCCEEDED(hr))
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hr = app->put_Enabled(authorized ? VARIANT_TRUE : VARIANT_FALSE);
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if (SUCCEEDED(hr))
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hr = apps->Add(app);
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app->Release();
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}
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apps->Release();
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}
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if (result)
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*result = hr;
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return SUCCEEDED(hr);
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}
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} // namespace rtc
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