Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 191 insertions, 0 deletions

diff --git a/dom/plugins/ipc/PluginProcessParent.cpp b/dom/plugins/ipc/PluginProcessParent.cpp
new file mode 100644
index 0000000000..2f65311263
--- /dev/null
+++ b/dom/plugins/ipc/PluginProcessParent.cpp
@@ -0,0 +1,191 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=4 et :
+ * 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/. */
+
+#include "mozilla/plugins/PluginProcessParent.h"
+
+#include "base/string_util.h"
+#include "base/process_util.h"
+
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsIFile.h"
+#include "nsIProperties.h"
+#include "nsServiceManagerUtils.h"
+
+#include "mozilla/ipc/BrowserProcessSubThread.h"
+#include "mozilla/plugins/PluginMessageUtils.h"
+#include "mozilla/Telemetry.h"
+#include "nsThreadUtils.h"
+
+using std::string;
+using std::vector;
+
+using mozilla::ipc::BrowserProcessSubThread;
+using mozilla::ipc::GeckoChildProcessHost;
+using mozilla::plugins::LaunchCompleteTask;
+using mozilla::plugins::PluginProcessParent;
+
+#ifdef XP_WIN
+PluginProcessParent::PidSet* PluginProcessParent::sPidSet = nullptr;
+#endif
+
+PluginProcessParent::PluginProcessParent(const std::string& aPluginFilePath)
+    : GeckoChildProcessHost(GeckoProcessType_Plugin),
+      mPluginFilePath(aPluginFilePath),
+      mTaskFactory(this),
+      mMainMsgLoop(MessageLoop::current())
+#ifdef XP_WIN
+      ,
+      mChildPid(0)
+#endif
+{
+}
+
+PluginProcessParent::~PluginProcessParent() {
+#ifdef XP_WIN
+  if (sPidSet && mChildPid) {
+    sPidSet->RemoveEntry(mChildPid);
+    if (sPidSet->IsEmpty()) {
+      delete sPidSet;
+      sPidSet = nullptr;
+    }
+  }
+#endif
+}
+
+bool PluginProcessParent::Launch(
+    mozilla::UniquePtr<LaunchCompleteTask> aLaunchCompleteTask,
+    int32_t aSandboxLevel, bool aIsSandboxLoggingEnabled) {
+#if (defined(XP_WIN) || defined(XP_MACOSX)) && defined(MOZ_SANDBOX)
+  // At present, the Mac Flash plugin sandbox does not support different
+  // levels and is enabled via a boolean pref or environment variable.
+  // On Mac, when |aSandboxLevel| is positive, we enable the sandbox.
+#  if defined(XP_WIN)
+  mSandboxLevel = aSandboxLevel;
+
+  // The sandbox process sometimes needs read access to the plugin file.
+  if (aSandboxLevel >= 3) {
+    std::wstring pluginFile(
+        NS_ConvertUTF8toUTF16(mPluginFilePath.c_str()).get());
+    mAllowedFilesRead.push_back(pluginFile);
+  }
+#  endif  // XP_WIN
+#else
+  if (aSandboxLevel != 0) {
+    MOZ_ASSERT(false,
+               "Can't enable an NPAPI process sandbox for platform/build.");
+  }
+#endif
+
+  mLaunchCompleteTask = std::move(aLaunchCompleteTask);
+
+  vector<string> args;
+  args.push_back(MungePluginDsoPath(mPluginFilePath));
+
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+  if (aSandboxLevel > 0) {
+    args.push_back("-flashSandboxLevel");
+    args.push_back(std::to_string(aSandboxLevel));
+    if (aIsSandboxLoggingEnabled) {
+      args.push_back("-flashSandboxLogging");
+    }
+  }
+#elif defined(XP_WIN) && defined(MOZ_SANDBOX)
+  nsresult rv;
+  nsCOMPtr<nsIProperties> dirSvc =
+      do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
+  if (NS_FAILED(rv)) {
+    MOZ_ASSERT(false, "Failed to get directory service.");
+    return false;
+  }
+
+  nsCOMPtr<nsIFile> dir;
+  rv = dirSvc->Get(NS_APP_PLUGIN_PROCESS_TEMP_DIR, NS_GET_IID(nsIFile),
+                   getter_AddRefs(dir));
+  if (NS_FAILED(rv)) {
+    NS_WARNING("Failed to get plugin process temp directory.");
+    return false;
+  }
+
+  nsAutoString tempDir;
+  MOZ_ALWAYS_SUCCEEDS(dir->GetPath(tempDir));
+  args.push_back(NS_ConvertUTF16toUTF8(tempDir).get());
+
+  rv =
+      dirSvc->Get(NS_WIN_APPDATA_DIR, NS_GET_IID(nsIFile), getter_AddRefs(dir));
+  if (NS_FAILED(rv)) {
+    NS_WARNING("Failed to get appdata directory.");
+    return false;
+  }
+
+  nsAutoString appdataDir;
+  MOZ_ALWAYS_SUCCEEDS(dir->GetPath(appdataDir));
+  appdataDir.Append(L"\\Adobe\\");
+  args.push_back(NS_ConvertUTF16toUTF8(appdataDir).get());
+#endif
+
+  bool result = AsyncLaunch(args);
+  if (!result) {
+    mLaunchCompleteTask = nullptr;
+  }
+  return result;
+}
+
+/**
+ * This function exists so that we may provide an additional level of
+ * indirection between the task being posted to main event loop (a
+ * RunnableMethod) and the launch complete task itself. This is needed
+ * for cases when both WaitUntilConnected or OnChannel* race to invoke the
+ * task.
+ */
+void PluginProcessParent::RunLaunchCompleteTask() {
+  if (mLaunchCompleteTask) {
+    mLaunchCompleteTask->Run();
+    mLaunchCompleteTask = nullptr;
+  }
+}
+
+bool PluginProcessParent::WaitUntilConnected(int32_t aTimeoutMs) {
+  bool result = GeckoChildProcessHost::WaitUntilConnected(aTimeoutMs);
+  if (mLaunchCompleteTask) {
+    if (result) {
+      mLaunchCompleteTask->SetLaunchSucceeded();
+    }
+    RunLaunchCompleteTask();
+  }
+  return result;
+}
+
+void PluginProcessParent::OnChannelConnected(int32_t peer_pid) {
+#ifdef XP_WIN
+  mChildPid = static_cast<uint32_t>(peer_pid);
+  if (!sPidSet) {
+    sPidSet = new PluginProcessParent::PidSet();
+  }
+  sPidSet->PutEntry(mChildPid);
+#endif
+
+  GeckoChildProcessHost::OnChannelConnected(peer_pid);
+}
+
+void PluginProcessParent::OnChannelError() {
+  GeckoChildProcessHost::OnChannelError();
+}
+
+bool PluginProcessParent::IsConnected() {
+  mozilla::MonitorAutoLock lock(mMonitor);
+  return mProcessState == PROCESS_CONNECTED;
+}
+
+bool PluginProcessParent::IsPluginProcessId(base::ProcessId procId) {
+#ifdef XP_WIN
+  MOZ_ASSERT(XRE_IsParentProcess());
+  return sPidSet && sPidSet->Contains(static_cast<uint32_t>(procId));
+#else
+  NS_ERROR("IsPluginProcessId not available on this platform.");
+  return false;
+#endif
+}