gecko-dev/netwerk/base/nsURLHelperUnix.cpp

102 строки
3.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 et cindent: */
/* 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/. */
/* Unix-specific local file uri parsing */
#include "nsURLHelper.h"
#include "nsEscape.h"
#include "nsIFile.h"
#include "nsNativeCharsetUtils.h"
nsresult
net_GetURLSpecFromActualFile(nsIFile *aFile, nsACString &result)
{
nsresult rv;
nsAutoCString nativePath, ePath;
nsAutoString path;
rv = aFile->GetNativePath(nativePath);
if (NS_FAILED(rv)) return rv;
// Convert to unicode and back to check correct conversion to native charset
NS_CopyNativeToUnicode(nativePath, path);
NS_CopyUnicodeToNative(path, ePath);
// Use UTF8 version if conversion was successful
if (nativePath == ePath)
CopyUTF16toUTF8(path, ePath);
else
ePath = nativePath;
nsAutoCString escPath;
NS_NAMED_LITERAL_CSTRING(prefix, "file://");
// Escape the path with the directory mask
if (NS_EscapeURL(ePath.get(), -1, esc_Directory+esc_Forced, escPath))
escPath.Insert(prefix, 0);
else
escPath.Assign(prefix + ePath);
// esc_Directory does not escape the semicolons, so if a filename
// contains semicolons we need to manually escape them.
// This replacement should be removed in bug #473280
escPath.ReplaceSubstring(";", "%3b");
result = escPath;
return NS_OK;
}
nsresult
net_GetFileFromURLSpec(const nsACString &aURL, nsIFile **result)
{
// NOTE: See also the implementation in nsURLHelperOSX.cpp,
// which is based on this.
nsresult rv;
nsCOMPtr<nsIFile> localFile;
rv = NS_NewNativeLocalFile(EmptyCString(), true, getter_AddRefs(localFile));
if (NS_FAILED(rv))
return rv;
nsAutoCString directory, fileBaseName, fileExtension, path;
rv = net_ParseFileURL(aURL, directory, fileBaseName, fileExtension);
if (NS_FAILED(rv)) return rv;
if (!directory.IsEmpty())
NS_EscapeURL(directory, esc_Directory|esc_AlwaysCopy, path);
if (!fileBaseName.IsEmpty())
NS_EscapeURL(fileBaseName, esc_FileBaseName|esc_AlwaysCopy, path);
if (!fileExtension.IsEmpty()) {
path += '.';
NS_EscapeURL(fileExtension, esc_FileExtension|esc_AlwaysCopy, path);
}
NS_UnescapeURL(path);
if (path.Length() != strlen(path.get()))
return NS_ERROR_FILE_INVALID_PATH;
if (IsUTF8(path)) {
// speed up the start-up where UTF-8 is the native charset
// (e.g. on recent Linux distributions)
if (NS_IsNativeUTF8())
rv = localFile->InitWithNativePath(path);
else
rv = localFile->InitWithPath(NS_ConvertUTF8toUTF16(path));
// XXX In rare cases, a valid UTF-8 string can be valid as a native
// encoding (e.g. 0xC5 0x83 is valid both as UTF-8 and Windows-125x).
// However, the chance is very low that a meaningful word in a legacy
// encoding is valid as UTF-8.
}
else
// if path is not in UTF-8, assume it is encoded in the native charset
rv = localFile->InitWithNativePath(path);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*result = localFile);
return NS_OK;
}