michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "FileLocation.h"
michael@0: #include "nsZipArchive.h"
michael@0: #include "nsURLHelper.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: FileLocation::FileLocation()
michael@0: {
michael@0: }
michael@0: 
michael@0: FileLocation::~FileLocation()
michael@0: {
michael@0: }
michael@0: 
michael@0: FileLocation::FileLocation(nsIFile* file)
michael@0: {
michael@0:   Init(file);
michael@0: }
michael@0: 
michael@0: FileLocation::FileLocation(nsIFile* file, const char *path)
michael@0: {
michael@0:   Init(file, path);
michael@0: }
michael@0: 
michael@0: FileLocation::FileLocation(const FileLocation &file, const char *path)
michael@0: {
michael@0:   if (file.IsZip()) {
michael@0:     if (file.mBaseFile) {
michael@0:       Init(file.mBaseFile, file.mPath.get());
michael@0:     } else {
michael@0:       Init(file.mBaseZip, file.mPath.get());
michael@0:     }
michael@0:     if (path) {
michael@0:       int32_t i = mPath.RFindChar('/');
michael@0:       if (kNotFound == i) {
michael@0:         mPath.Truncate(0);
michael@0:       } else {
michael@0:         mPath.Truncate(i + 1);
michael@0:       }
michael@0:       mPath += path;
michael@0:     }
michael@0:   } else {
michael@0:     if (path) {
michael@0:       nsCOMPtr<nsIFile> cfile;
michael@0:       file.mBaseFile->GetParent(getter_AddRefs(cfile));
michael@0: 
michael@0: #if defined(XP_WIN)
michael@0:       nsAutoCString pathStr(path);
michael@0:       char *p;
michael@0:       uint32_t len = pathStr.GetMutableData(&p);
michael@0:       for (; len; ++p, --len) {
michael@0:         if ('/' == *p) {
michael@0:             *p = '\\';
michael@0:         }
michael@0:       }
michael@0:       cfile->AppendRelativeNativePath(pathStr);
michael@0: #else
michael@0:       cfile->AppendRelativeNativePath(nsDependentCString(path));
michael@0: #endif
michael@0:       Init(cfile);
michael@0:     } else {
michael@0:       Init(file.mBaseFile);
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: void
michael@0: FileLocation::Init(nsIFile* file)
michael@0: {
michael@0:   mBaseZip = nullptr;
michael@0:   mBaseFile = file;
michael@0:   mPath.Truncate();
michael@0: }
michael@0: 
michael@0: void
michael@0: FileLocation::Init(nsIFile* file, const char* path)
michael@0: {
michael@0:   mBaseZip = nullptr;
michael@0:   mBaseFile = file;
michael@0:   mPath = path;
michael@0: }
michael@0: 
michael@0: void
michael@0: FileLocation::Init(nsZipArchive* zip, const char* path)
michael@0: {
michael@0:   mBaseZip = zip;
michael@0:   mBaseFile = nullptr;
michael@0:   mPath = path;
michael@0: }
michael@0: 
michael@0: void
michael@0: FileLocation::GetURIString(nsACString &result) const
michael@0: {
michael@0:   if (mBaseFile) {
michael@0:     net_GetURLSpecFromActualFile(mBaseFile, result);
michael@0:   } else if (mBaseZip) {
michael@0:     nsRefPtr<nsZipHandle> handler = mBaseZip->GetFD();
michael@0:     handler->mFile.GetURIString(result);
michael@0:   }
michael@0:   if (IsZip()) {
michael@0:     result.Insert("jar:", 0);
michael@0:     result += "!/";
michael@0:     result += mPath;
michael@0:   }
michael@0: }
michael@0: 
michael@0: already_AddRefed<nsIFile>
michael@0: FileLocation::GetBaseFile()
michael@0: {
michael@0:   if (IsZip() && mBaseZip) {
michael@0:     nsRefPtr<nsZipHandle> handler = mBaseZip->GetFD();
michael@0:     if (handler)
michael@0:       return handler->mFile.GetBaseFile();
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsIFile> file = mBaseFile;
michael@0:   return file.forget();
michael@0: }
michael@0: 
michael@0: bool
michael@0: FileLocation::Equals(const FileLocation &file) const
michael@0: {
michael@0:   if (mPath != file.mPath)
michael@0:     return false;
michael@0: 
michael@0:   if (mBaseFile && file.mBaseFile) {
michael@0:     bool eq;
michael@0:     return NS_SUCCEEDED(mBaseFile->Equals(file.mBaseFile, &eq)) && eq;
michael@0:   }
michael@0: 
michael@0:   const FileLocation *a = this, *b = &file;
michael@0:   if (a->mBaseZip) {
michael@0:     nsRefPtr<nsZipHandle> handler = a->mBaseZip->GetFD();
michael@0:     a = &handler->mFile;
michael@0:   }
michael@0:   if (b->mBaseZip) {
michael@0:     nsRefPtr<nsZipHandle> handler = b->mBaseZip->GetFD();
michael@0:     b = &handler->mFile;
michael@0:   }
michael@0:   return a->Equals(*b);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: FileLocation::GetData(Data &data)
michael@0: {
michael@0:   if (!IsZip()) {
michael@0:     return mBaseFile->OpenNSPRFileDesc(PR_RDONLY, 0444, &data.mFd.rwget());
michael@0:   }
michael@0:   data.mZip = mBaseZip;
michael@0:   if (!data.mZip) {
michael@0:     data.mZip = new nsZipArchive();
michael@0:     data.mZip->OpenArchive(mBaseFile);
michael@0:   }
michael@0:   data.mItem = data.mZip->GetItem(mPath.get());
michael@0:   if (data.mItem)
michael@0:     return NS_OK;
michael@0:   return NS_ERROR_FILE_UNRECOGNIZED_PATH;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: FileLocation::Data::GetSize(uint32_t *result)
michael@0: {
michael@0:   if (mFd) {
michael@0:     PRFileInfo64 fileInfo;
michael@0:     if (PR_SUCCESS != PR_GetOpenFileInfo64(mFd, &fileInfo))
michael@0:       return NS_ErrorAccordingToNSPR();
michael@0: 
michael@0:     if (fileInfo.size > int64_t(UINT32_MAX))
michael@0:       return NS_ERROR_FILE_TOO_BIG;
michael@0: 
michael@0:     *result = fileInfo.size;
michael@0:     return NS_OK;
michael@0:   } else if (mItem) {
michael@0:     *result = mItem->RealSize();
michael@0:     return NS_OK;
michael@0:   }
michael@0:   return NS_ERROR_NOT_INITIALIZED;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: FileLocation::Data::Copy(char *buf, uint32_t len)
michael@0: {
michael@0:   if (mFd) {
michael@0:     for (uint32_t totalRead = 0; totalRead < len; ) {
michael@0:       int32_t read = PR_Read(mFd, buf + totalRead, XPCOM_MIN(len - totalRead, uint32_t(INT32_MAX)));
michael@0:       if (read < 0)
michael@0:         return NS_ErrorAccordingToNSPR();
michael@0:       totalRead += read;
michael@0:     }
michael@0:     return NS_OK;
michael@0:   } else if (mItem) {
michael@0:     nsZipCursor cursor(mItem, mZip, reinterpret_cast<uint8_t *>(buf), len, true);
michael@0:     uint32_t readLen;
michael@0:     cursor.Copy(&readLen);
michael@0:     return (readLen == len) ? NS_OK : NS_ERROR_FILE_CORRUPTED;
michael@0:   }
michael@0:   return NS_ERROR_NOT_INITIALIZED;
michael@0: }
michael@0: 
michael@0: } /* namespace mozilla */