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/* -*- 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"
#include "mozilla/UniquePtrExtensions.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,
getter_Transfers(aData.mFd));
}
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.get(), &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.get(), 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 */
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