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comparison: dom/filesystem/RemoveTask.cpp
dom/filesystem/RemoveTask.cpp
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:62f07abed20c |
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| 1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "RemoveTask.h" | |
| 8 | |
| 9 #include "DOMError.h" | |
| 10 #include "mozilla/dom/FileSystemBase.h" | |
| 11 #include "mozilla/dom/FileSystemUtils.h" | |
| 12 #include "mozilla/dom/Promise.h" | |
| 13 #include "nsIDOMFile.h" | |
| 14 #include "nsIFile.h" | |
| 15 #include "nsStringGlue.h" | |
| 16 | |
| 17 namespace mozilla { | |
| 18 namespace dom { | |
| 19 | |
| 20 RemoveTask::RemoveTask(FileSystemBase* aFileSystem, | |
| 21 const nsAString& aDirPath, | |
| 22 nsIDOMFile* aTargetFile, | |
| 23 const nsAString& aTargetPath, | |
| 24 bool aRecursive) | |
| 25 : FileSystemTaskBase(aFileSystem) | |
| 26 , mDirRealPath(aDirPath) | |
| 27 , mTargetFile(aTargetFile) | |
| 28 , mTargetRealPath(aTargetPath) | |
| 29 , mRecursive(aRecursive) | |
| 30 , mReturnValue(false) | |
| 31 { | |
| 32 MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!"); | |
| 33 MOZ_ASSERT(aFileSystem); | |
| 34 nsCOMPtr<nsIGlobalObject> globalObject = | |
| 35 do_QueryInterface(aFileSystem->GetWindow()); | |
| 36 if (!globalObject) { | |
| 37 return; | |
| 38 } | |
| 39 mPromise = new Promise(globalObject); | |
| 40 } | |
| 41 | |
| 42 RemoveTask::RemoveTask(FileSystemBase* aFileSystem, | |
| 43 const FileSystemRemoveParams& aParam, | |
| 44 FileSystemRequestParent* aParent) | |
| 45 : FileSystemTaskBase(aFileSystem, aParam, aParent) | |
| 46 , mRecursive(false) | |
| 47 , mReturnValue(false) | |
| 48 { | |
| 49 MOZ_ASSERT(FileSystemUtils::IsParentProcess(), | |
| 50 "Only call from parent process!"); | |
| 51 MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!"); | |
| 52 MOZ_ASSERT(aFileSystem); | |
| 53 | |
| 54 mDirRealPath = aParam.directory(); | |
| 55 | |
| 56 mRecursive = aParam.recursive(); | |
| 57 | |
| 58 const FileSystemPathOrFileValue& target = aParam.target(); | |
| 59 | |
| 60 if (target.type() == FileSystemPathOrFileValue::TnsString) { | |
| 61 mTargetRealPath = target; | |
| 62 return; | |
| 63 } | |
| 64 | |
| 65 BlobParent* bp = static_cast<BlobParent*>(static_cast<PBlobParent*>(target)); | |
| 66 nsCOMPtr<nsIDOMBlob> blob = bp->GetBlob(); | |
| 67 mTargetFile = do_QueryInterface(blob); | |
| 68 MOZ_ASSERT(mTargetFile, "mTargetFile should not be null."); | |
| 69 } | |
| 70 | |
| 71 RemoveTask::~RemoveTask() | |
| 72 { | |
| 73 MOZ_ASSERT(!mPromise || NS_IsMainThread(), | |
| 74 "mPromise should be released on main thread!"); | |
| 75 } | |
| 76 | |
| 77 already_AddRefed<Promise> | |
| 78 RemoveTask::GetPromise() | |
| 79 { | |
| 80 MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!"); | |
| 81 return nsRefPtr<Promise>(mPromise).forget(); | |
| 82 } | |
| 83 | |
| 84 FileSystemParams | |
| 85 RemoveTask::GetRequestParams(const nsString& aFileSystem) const | |
| 86 { | |
| 87 MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!"); | |
| 88 FileSystemRemoveParams param; | |
| 89 param.filesystem() = aFileSystem; | |
| 90 param.directory() = mDirRealPath; | |
| 91 param.recursive() = mRecursive; | |
| 92 if (mTargetFile) { | |
| 93 BlobChild* actor | |
| 94 = ContentChild::GetSingleton()->GetOrCreateActorForBlob(mTargetFile); | |
| 95 if (actor) { | |
| 96 param.target() = actor; | |
| 97 } | |
| 98 } else { | |
| 99 param.target() = mTargetRealPath; | |
| 100 } | |
| 101 return param; | |
| 102 } | |
| 103 | |
| 104 FileSystemResponseValue | |
| 105 RemoveTask::GetSuccessRequestResult() const | |
| 106 { | |
| 107 MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!"); | |
| 108 return FileSystemBooleanResponse(mReturnValue); | |
| 109 } | |
| 110 | |
| 111 void | |
| 112 RemoveTask::SetSuccessRequestResult(const FileSystemResponseValue& aValue) | |
| 113 { | |
| 114 MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!"); | |
| 115 FileSystemBooleanResponse r = aValue; | |
| 116 mReturnValue = r.success(); | |
| 117 } | |
| 118 | |
| 119 nsresult | |
| 120 RemoveTask::Work() | |
| 121 { | |
| 122 MOZ_ASSERT(FileSystemUtils::IsParentProcess(), | |
| 123 "Only call from parent process!"); | |
| 124 MOZ_ASSERT(!NS_IsMainThread(), "Only call on worker thread!"); | |
| 125 | |
| 126 if (mFileSystem->IsShutdown()) { | |
| 127 return NS_ERROR_FAILURE; | |
| 128 } | |
| 129 | |
| 130 // Get the DOM path if a DOMFile is passed as the target. | |
| 131 if (mTargetFile) { | |
| 132 if (!mFileSystem->GetRealPath(mTargetFile, mTargetRealPath)) { | |
| 133 return NS_ERROR_DOM_SECURITY_ERR; | |
| 134 } | |
| 135 if (!FileSystemUtils::IsDescendantPath(mDirRealPath, mTargetRealPath)) { | |
| 136 return NS_ERROR_DOM_FILESYSTEM_NO_MODIFICATION_ALLOWED_ERR; | |
| 137 } | |
| 138 } | |
| 139 | |
| 140 nsCOMPtr<nsIFile> file = mFileSystem->GetLocalFile(mTargetRealPath); | |
| 141 if (!file) { | |
| 142 return NS_ERROR_DOM_FILESYSTEM_INVALID_PATH_ERR; | |
| 143 } | |
| 144 | |
| 145 bool exists = false; | |
| 146 nsresult rv = file->Exists(&exists); | |
| 147 if (NS_WARN_IF(NS_FAILED(rv))) { | |
| 148 return rv; | |
| 149 } | |
| 150 | |
| 151 if (!exists) { | |
| 152 mReturnValue = false; | |
| 153 return NS_OK; | |
| 154 } | |
| 155 | |
| 156 bool isFile = false; | |
| 157 rv = file->IsFile(&isFile); | |
| 158 if (NS_WARN_IF(NS_FAILED(rv))) { | |
| 159 return rv; | |
| 160 } | |
| 161 | |
| 162 if (isFile && !mFileSystem->IsSafeFile(file)) { | |
| 163 return NS_ERROR_DOM_SECURITY_ERR; | |
| 164 } | |
| 165 | |
| 166 rv = file->Remove(mRecursive); | |
| 167 if (NS_WARN_IF(NS_FAILED(rv))) { | |
| 168 return rv; | |
| 169 } | |
| 170 | |
| 171 mReturnValue = true; | |
| 172 | |
| 173 return NS_OK; | |
| 174 } | |
| 175 | |
| 176 void | |
| 177 RemoveTask::HandlerCallback() | |
| 178 { | |
| 179 MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!"); | |
| 180 if (mFileSystem->IsShutdown()) { | |
| 181 mPromise = nullptr; | |
| 182 return; | |
| 183 } | |
| 184 | |
| 185 if (HasError()) { | |
| 186 nsRefPtr<DOMError> domError = new DOMError(mFileSystem->GetWindow(), | |
| 187 mErrorValue); | |
| 188 mPromise->MaybeReject(domError); | |
| 189 mPromise = nullptr; | |
| 190 return; | |
| 191 } | |
| 192 | |
| 193 mPromise->MaybeResolve(mReturnValue); | |
| 194 mPromise = nullptr; | |
| 195 } | |
| 196 | |
| 197 void | |
| 198 RemoveTask::GetPermissionAccessType(nsCString& aAccess) const | |
| 199 { | |
| 200 aAccess.AssignLiteral("write"); | |
| 201 } | |
| 202 | |
| 203 } // namespace dom | |
| 204 } // namespace mozilla |
