Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 371 insertions, 0 deletions

diff --git a/dom/filesystem/GetDirectoryListingTask.cpp b/dom/filesystem/GetDirectoryListingTask.cpp
new file mode 100644
index 0000000000..f78a04a9d0
--- /dev/null
+++ b/dom/filesystem/GetDirectoryListingTask.cpp
@@ -0,0 +1,371 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "GetDirectoryListingTask.h"
+
+#include "HTMLSplitOnSpacesTokenizer.h"
+#include "js/Value.h"
+#include "mozilla/dom/FileBlobImpl.h"
+#include "mozilla/dom/FileSystemBase.h"
+#include "mozilla/dom/FileSystemUtils.h"
+#include "mozilla/dom/IPCBlobUtils.h"
+#include "mozilla/dom/PFileSystemParams.h"
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/UnionTypes.h"
+#include "mozilla/ipc/BackgroundParent.h"
+#include "nsIFile.h"
+#include "nsString.h"
+
+namespace mozilla::dom {
+
+/**
+ * GetDirectoryListingTaskChild
+ */
+
+/* static */
+already_AddRefed<GetDirectoryListingTaskChild>
+GetDirectoryListingTaskChild::Create(FileSystemBase* aFileSystem,
+                                     Directory* aDirectory,
+                                     nsIFile* aTargetPath,
+                                     const nsAString& aFilters,
+                                     ErrorResult& aRv) {
+  MOZ_ASSERT(aFileSystem);
+  MOZ_ASSERT(aDirectory);
+  aFileSystem->AssertIsOnOwningThread();
+
+  nsCOMPtr<nsIGlobalObject> globalObject = aFileSystem->GetParentObject();
+  MOZ_ASSERT(globalObject);
+
+  RefPtr<GetDirectoryListingTaskChild> task = new GetDirectoryListingTaskChild(
+      globalObject, aFileSystem, aDirectory, aTargetPath, aFilters);
+
+  // aTargetPath can be null. In this case SetError will be called.
+
+  task->mPromise = Promise::Create(globalObject, aRv);
+  if (NS_WARN_IF(aRv.Failed())) {
+    return nullptr;
+  }
+
+  return task.forget();
+}
+
+GetDirectoryListingTaskChild::GetDirectoryListingTaskChild(
+    nsIGlobalObject* aGlobalObject, FileSystemBase* aFileSystem,
+    Directory* aDirectory, nsIFile* aTargetPath, const nsAString& aFilters)
+    : FileSystemTaskChildBase(aGlobalObject, aFileSystem),
+      mDirectory(aDirectory),
+      mTargetPath(aTargetPath),
+      mFilters(aFilters) {
+  MOZ_ASSERT(aFileSystem);
+  aFileSystem->AssertIsOnOwningThread();
+}
+
+GetDirectoryListingTaskChild::~GetDirectoryListingTaskChild() {
+  mFileSystem->AssertIsOnOwningThread();
+}
+
+already_AddRefed<Promise> GetDirectoryListingTaskChild::GetPromise() {
+  mFileSystem->AssertIsOnOwningThread();
+  return RefPtr<Promise>(mPromise).forget();
+}
+
+FileSystemParams GetDirectoryListingTaskChild::GetRequestParams(
+    const nsString& aSerializedDOMPath, ErrorResult& aRv) const {
+  mFileSystem->AssertIsOnOwningThread();
+
+  // this is the real path.
+  nsAutoString path;
+  aRv = mTargetPath->GetPath(path);
+  if (NS_WARN_IF(aRv.Failed())) {
+    return FileSystemGetDirectoryListingParams();
+  }
+
+  // this is the dom path.
+  nsAutoString directoryPath;
+  mDirectory->GetPath(directoryPath, aRv);
+  if (NS_WARN_IF(aRv.Failed())) {
+    return FileSystemGetDirectoryListingParams();
+  }
+
+  return FileSystemGetDirectoryListingParams(aSerializedDOMPath, path,
+                                             directoryPath, mFilters);
+}
+
+void GetDirectoryListingTaskChild::SetSuccessRequestResult(
+    const FileSystemResponseValue& aValue, ErrorResult& aRv) {
+  mFileSystem->AssertIsOnOwningThread();
+  MOZ_ASSERT(aValue.type() ==
+             FileSystemResponseValue::TFileSystemDirectoryListingResponse);
+
+  FileSystemDirectoryListingResponse r = aValue;
+  for (uint32_t i = 0; i < r.data().Length(); ++i) {
+    const FileSystemDirectoryListingResponseData& data = r.data()[i];
+
+    OwningFileOrDirectory* ofd = mTargetData.AppendElement(fallible);
+    if (!ofd) {
+      aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
+      return;
+    }
+
+    if (data.type() == FileSystemDirectoryListingResponseData::
+                           TFileSystemDirectoryListingResponseFile) {
+      const FileSystemDirectoryListingResponseFile& d =
+          data.get_FileSystemDirectoryListingResponseFile();
+
+      RefPtr<BlobImpl> blobImpl = IPCBlobUtils::Deserialize(d.blob());
+      MOZ_ASSERT(blobImpl);
+
+      nsCOMPtr<nsIGlobalObject> globalObject = mFileSystem->GetParentObject();
+      MOZ_ASSERT(globalObject);
+
+      RefPtr<File> file = File::Create(globalObject, blobImpl);
+      MOZ_ASSERT(file);
+
+      ofd->SetAsFile() = file;
+    } else {
+      MOZ_ASSERT(data.type() ==
+                 FileSystemDirectoryListingResponseData::
+                     TFileSystemDirectoryListingResponseDirectory);
+      const FileSystemDirectoryListingResponseDirectory& d =
+          data.get_FileSystemDirectoryListingResponseDirectory();
+
+      nsCOMPtr<nsIFile> path;
+      aRv = NS_NewLocalFile(d.directoryRealPath(), true, getter_AddRefs(path));
+      if (NS_WARN_IF(aRv.Failed())) {
+        return;
+      }
+
+      RefPtr<Directory> directory =
+          Directory::Create(mFileSystem->GetParentObject(), path, mFileSystem);
+      MOZ_ASSERT(directory);
+
+      ofd->SetAsDirectory() = directory;
+    }
+  }
+}
+
+void GetDirectoryListingTaskChild::HandlerCallback() {
+  mFileSystem->AssertIsOnOwningThread();
+
+  if (mFileSystem->IsShutdown()) {
+    mPromise = nullptr;
+    return;
+  }
+
+  if (HasError()) {
+    mPromise->MaybeReject(mErrorValue);
+    mPromise = nullptr;
+    return;
+  }
+
+  mPromise->MaybeResolve(mTargetData);
+  mPromise = nullptr;
+}
+
+/**
+ * GetDirectoryListingTaskParent
+ */
+
+/* static */
+already_AddRefed<GetDirectoryListingTaskParent>
+GetDirectoryListingTaskParent::Create(
+    FileSystemBase* aFileSystem,
+    const FileSystemGetDirectoryListingParams& aParam,
+    FileSystemRequestParent* aParent, ErrorResult& aRv) {
+  MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
+  mozilla::ipc::AssertIsOnBackgroundThread();
+  MOZ_ASSERT(aFileSystem);
+
+  RefPtr<GetDirectoryListingTaskParent> task =
+      new GetDirectoryListingTaskParent(aFileSystem, aParam, aParent);
+
+  aRv = NS_NewLocalFile(aParam.realPath(), true,
+                        getter_AddRefs(task->mTargetPath));
+  if (NS_WARN_IF(aRv.Failed())) {
+    return nullptr;
+  }
+
+  return task.forget();
+}
+
+GetDirectoryListingTaskParent::GetDirectoryListingTaskParent(
+    FileSystemBase* aFileSystem,
+    const FileSystemGetDirectoryListingParams& aParam,
+    FileSystemRequestParent* aParent)
+    : FileSystemTaskParentBase(aFileSystem, aParam, aParent),
+      mDOMPath(aParam.domPath()),
+      mFilters(aParam.filters()) {
+  MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
+  mozilla::ipc::AssertIsOnBackgroundThread();
+  MOZ_ASSERT(aFileSystem);
+}
+
+FileSystemResponseValue GetDirectoryListingTaskParent::GetSuccessRequestResult(
+    ErrorResult& aRv) const {
+  mozilla::ipc::AssertIsOnBackgroundThread();
+
+  nsTArray<FileSystemDirectoryListingResponseData> inputs;
+
+  for (unsigned i = 0; i < mTargetData.Length(); i++) {
+    if (mTargetData[i].mType == FileOrDirectoryPath::eFilePath) {
+      nsCOMPtr<nsIFile> path;
+      nsresult rv =
+          NS_NewLocalFile(mTargetData[i].mPath, true, getter_AddRefs(path));
+      if (NS_WARN_IF(NS_FAILED(rv))) {
+        continue;
+      }
+
+      FileSystemDirectoryListingResponseFile fileData;
+      RefPtr<BlobImpl> blobImpl = new FileBlobImpl(path);
+
+      nsAutoString filePath;
+      filePath.Assign(mDOMPath);
+
+      // This is specific for unix root filesystem.
+      if (!mDOMPath.EqualsLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL)) {
+        filePath.AppendLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL);
+      }
+
+      nsAutoString name;
+      blobImpl->GetName(name);
+      filePath.Append(name);
+      blobImpl->SetDOMPath(filePath);
+
+      IPCBlob ipcBlob;
+      rv = IPCBlobUtils::Serialize(blobImpl, ipcBlob);
+      if (NS_WARN_IF(NS_FAILED(rv))) {
+        continue;
+      }
+
+      fileData.blob() = ipcBlob;
+      inputs.AppendElement(fileData);
+    } else {
+      MOZ_ASSERT(mTargetData[i].mType == FileOrDirectoryPath::eDirectoryPath);
+      FileSystemDirectoryListingResponseDirectory directoryData;
+      directoryData.directoryRealPath() = mTargetData[i].mPath;
+      inputs.AppendElement(directoryData);
+    }
+  }
+
+  FileSystemDirectoryListingResponse response;
+  response.data() = std::move(inputs);
+  return response;
+}
+
+nsresult GetDirectoryListingTaskParent::IOWork() {
+  MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
+  MOZ_ASSERT(!NS_IsMainThread(), "Only call on worker thread!");
+
+  if (mFileSystem->IsShutdown()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  bool exists;
+  nsresult rv = mTargetPath->Exists(&exists);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  if (!exists) {
+    if (!mFileSystem->ShouldCreateDirectory()) {
+      return NS_ERROR_DOM_FILE_NOT_FOUND_ERR;
+    }
+
+    rv = mTargetPath->Create(nsIFile::DIRECTORY_TYPE, 0777);
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return rv;
+    }
+  }
+
+  // Get isDirectory.
+  bool isDir;
+  rv = mTargetPath->IsDirectory(&isDir);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  if (!isDir) {
+    return NS_ERROR_DOM_FILESYSTEM_TYPE_MISMATCH_ERR;
+  }
+
+  nsCOMPtr<nsIDirectoryEnumerator> entries;
+  rv = mTargetPath->GetDirectoryEntries(getter_AddRefs(entries));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  bool filterOutSensitive = false;
+  {
+    HTMLSplitOnSpacesTokenizer tokenizer(mFilters, ';');
+    nsAutoString token;
+    while (tokenizer.hasMoreTokens()) {
+      token = tokenizer.nextToken();
+      if (token.EqualsLiteral("filter-out-sensitive")) {
+        filterOutSensitive = true;
+      } else {
+        MOZ_CRASH("Unrecognized filter");
+      }
+    }
+  }
+
+  for (;;) {
+    nsCOMPtr<nsIFile> currFile;
+    if (NS_WARN_IF(NS_FAILED(entries->GetNextFile(getter_AddRefs(currFile)))) ||
+        !currFile) {
+      break;
+    }
+    bool isLink, isSpecial, isFile;
+    if (NS_WARN_IF(NS_FAILED(currFile->IsSymlink(&isLink)) ||
+                   NS_FAILED(currFile->IsSpecial(&isSpecial))) ||
+        // Although we allow explicit individual selection of symlinks via the
+        // file picker, we do not process symlinks in directory traversal.  Our
+        // specific policy decision is documented at
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=1813299#c20
+        isLink || isSpecial) {
+      continue;
+    }
+    if (NS_WARN_IF(NS_FAILED(currFile->IsFile(&isFile)) ||
+                   NS_FAILED(currFile->IsDirectory(&isDir))) ||
+        !(isFile || isDir)) {
+      continue;
+    }
+
+    if (filterOutSensitive) {
+      bool isHidden;
+      if (NS_WARN_IF(NS_FAILED(currFile->IsHidden(&isHidden))) || isHidden) {
+        continue;
+      }
+      nsAutoString leafName;
+      if (NS_WARN_IF(NS_FAILED(currFile->GetLeafName(leafName)))) {
+        continue;
+      }
+      if (leafName[0] == char16_t('.')) {
+        continue;
+      }
+    }
+
+    nsAutoString path;
+    if (NS_WARN_IF(NS_FAILED(currFile->GetPath(path)))) {
+      continue;
+    }
+
+    FileOrDirectoryPath element;
+    element.mPath = path;
+    element.mType = isDir ? FileOrDirectoryPath::eDirectoryPath
+                          : FileOrDirectoryPath::eFilePath;
+
+    if (!mTargetData.AppendElement(element, fallible)) {
+      return NS_ERROR_OUT_OF_MEMORY;
+    }
+  }
+  return NS_OK;
+}
+
+nsresult GetDirectoryListingTaskParent::GetTargetPath(nsAString& aPath) const {
+  return mTargetPath->GetPath(aPath);
+}
+
+}  // namespace mozilla::dom