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-rw-r--r--xpcom/build/FileLocation.cpp212
1 files changed, 212 insertions, 0 deletions
diff --git a/xpcom/build/FileLocation.cpp b/xpcom/build/FileLocation.cpp
new file mode 100644
index 0000000000..bb090c2b94
--- /dev/null
+++ b/xpcom/build/FileLocation.cpp
@@ -0,0 +1,212 @@
+/* -*- 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 "FileLocation.h"
+#include "nsZipArchive.h"
+#include "nsURLHelper.h"
+
+namespace mozilla {
+
+FileLocation::FileLocation() = default;
+
+FileLocation::~FileLocation() = default;
+
+FileLocation::FileLocation(nsIFile* aFile) { Init(aFile); }
+
+FileLocation::FileLocation(nsIFile* aFile, const char* aPath) {
+ Init(aFile, aPath);
+}
+
+FileLocation::FileLocation(nsZipArchive* aZip, const char* aPath) {
+ Init(aZip, aPath);
+}
+
+FileLocation::FileLocation(const FileLocation& aOther)
+
+ = default;
+
+FileLocation::FileLocation(FileLocation&& aOther)
+ : mBaseFile(std::move(aOther.mBaseFile)),
+ mBaseZip(std::move(aOther.mBaseZip)),
+ mPath(std::move(aOther.mPath)) {
+ aOther.mPath.Truncate();
+}
+
+FileLocation::FileLocation(const FileLocation& aFile, const char* aPath) {
+ if (aFile.IsZip()) {
+ if (aFile.mBaseFile) {
+ Init(aFile.mBaseFile, aFile.mPath.get());
+ } else {
+ Init(aFile.mBaseZip, aFile.mPath.get());
+ }
+ if (aPath) {
+ int32_t i = mPath.RFindChar('/');
+ if (kNotFound == i) {
+ mPath.Truncate(0);
+ } else {
+ mPath.Truncate(i + 1);
+ }
+ mPath += aPath;
+ }
+ } else {
+ if (aPath) {
+ nsCOMPtr<nsIFile> cfile;
+ aFile.mBaseFile->GetParent(getter_AddRefs(cfile));
+
+#if defined(XP_WIN)
+ nsAutoCString pathStr(aPath);
+ char* p;
+ uint32_t len = pathStr.GetMutableData(&p);
+ for (; len; ++p, --len) {
+ if ('/' == *p) {
+ *p = '\\';
+ }
+ }
+ cfile->AppendRelativeNativePath(pathStr);
+#else
+ cfile->AppendRelativeNativePath(nsDependentCString(aPath));
+#endif
+ Init(cfile);
+ } else {
+ Init(aFile.mBaseFile);
+ }
+ }
+}
+
+void FileLocation::Init(nsIFile* aFile) {
+ mBaseZip = nullptr;
+ mBaseFile = aFile;
+ mPath.Truncate();
+}
+
+void FileLocation::Init(nsIFile* aFile, const char* aPath) {
+ mBaseZip = nullptr;
+ mBaseFile = aFile;
+ mPath = aPath;
+}
+
+void FileLocation::Init(nsZipArchive* aZip, const char* aPath) {
+ mBaseZip = aZip;
+ mBaseFile = nullptr;
+ mPath = aPath;
+}
+
+void FileLocation::GetURIString(nsACString& aResult) const {
+ if (mBaseFile) {
+ net_GetURLSpecFromActualFile(mBaseFile, aResult);
+ } else if (mBaseZip) {
+ RefPtr<nsZipHandle> handler = mBaseZip->GetFD();
+ handler->mFile.GetURIString(aResult);
+ }
+ if (IsZip()) {
+ aResult.InsertLiteral("jar:", 0);
+ aResult += "!/";
+ aResult += mPath;
+ }
+}
+
+already_AddRefed<nsIFile> FileLocation::GetBaseFile() {
+ if (IsZip() && mBaseZip) {
+ RefPtr<nsZipHandle> handler = mBaseZip->GetFD();
+ if (handler) {
+ return handler->mFile.GetBaseFile();
+ }
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIFile> file = mBaseFile;
+ return file.forget();
+}
+
+bool FileLocation::Equals(const FileLocation& aFile) const {
+ if (mPath != aFile.mPath) {
+ return false;
+ }
+
+ if (mBaseFile && aFile.mBaseFile) {
+ bool eq;
+ return NS_SUCCEEDED(mBaseFile->Equals(aFile.mBaseFile, &eq)) && eq;
+ }
+
+ const FileLocation* a = this;
+ const FileLocation* b = &aFile;
+ if (a->mBaseZip) {
+ RefPtr<nsZipHandle> handler = a->mBaseZip->GetFD();
+ a = &handler->mFile;
+ }
+ if (b->mBaseZip) {
+ RefPtr<nsZipHandle> handler = b->mBaseZip->GetFD();
+ b = &handler->mFile;
+ }
+
+ return a->Equals(*b);
+}
+
+nsresult FileLocation::GetData(Data& aData) {
+ if (!IsZip()) {
+ return mBaseFile->OpenNSPRFileDesc(PR_RDONLY, 0444, &aData.mFd.rwget());
+ }
+ aData.mZip = mBaseZip;
+ if (!aData.mZip) {
+ // this can return nullptr
+ aData.mZip = nsZipArchive::OpenArchive(mBaseFile);
+ }
+ if (aData.mZip) {
+ aData.mItem = aData.mZip->GetItem(mPath.get());
+ if (aData.mItem) {
+ return NS_OK;
+ }
+ }
+ return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+}
+
+nsresult FileLocation::Data::GetSize(uint32_t* aResult) {
+ if (mFd) {
+ PRFileInfo64 fileInfo;
+ if (PR_SUCCESS != PR_GetOpenFileInfo64(mFd, &fileInfo)) {
+ return NS_ErrorAccordingToNSPR();
+ }
+
+ if (fileInfo.size > int64_t(UINT32_MAX)) {
+ return NS_ERROR_FILE_TOO_BIG;
+ }
+
+ *aResult = fileInfo.size;
+ return NS_OK;
+ }
+ if (mItem) {
+ *aResult = mItem->RealSize();
+ return NS_OK;
+ }
+ return NS_ERROR_NOT_INITIALIZED;
+}
+
+nsresult FileLocation::Data::Copy(char* aBuf, uint32_t aLen) {
+ if (mFd) {
+ for (uint32_t totalRead = 0; totalRead < aLen;) {
+ int32_t read = PR_Read(mFd, aBuf + totalRead,
+ XPCOM_MIN(aLen - totalRead, uint32_t(INT32_MAX)));
+ if (read < 0) {
+ return NS_ErrorAccordingToNSPR();
+ }
+ totalRead += read;
+ }
+ return NS_OK;
+ }
+ if (mItem) {
+ nsZipCursor cursor(mItem, mZip, reinterpret_cast<uint8_t*>(aBuf), aLen,
+ true);
+ uint32_t readLen;
+ cursor.Copy(&readLen);
+ if (readLen != aLen) {
+ return NS_ERROR_FILE_CORRUPTED;
+ }
+ return NS_OK;
+ }
+ return NS_ERROR_NOT_INITIALIZED;
+}
+
+} /* namespace mozilla */