tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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nsURLHelperUnix.cpp (2579B)

      1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim:set ts=4 sw=2 et cindent: */
      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
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 /* Unix-specific local file uri parsing */
      8 #include "nsURLHelper.h"
      9 #include "nsEscape.h"
     10 #include "nsIFile.h"
     11 #include "nsNativeCharsetUtils.h"
     12 #include "mozilla/Utf8.h"
     13 
     14 using mozilla::IsUtf8;
     15 
     16 nsresult net_GetURLSpecFromActualFile(nsIFile* aFile, nsACString& result) {
     17  nsresult rv;
     18  nsAutoCString nativePath, ePath;
     19  nsAutoString path;
     20 
     21  rv = aFile->GetNativePath(nativePath);
     22  if (NS_FAILED(rv)) return rv;
     23 
     24  // Convert to unicode and back to check correct conversion to native charset
     25  NS_CopyNativeToUnicode(nativePath, path);
     26  NS_CopyUnicodeToNative(path, ePath);
     27 
     28  // Use UTF8 version if conversion was successful
     29  if (nativePath == ePath) {
     30    CopyUTF16toUTF8(path, ePath);
     31  } else {
     32    ePath = nativePath;
     33  }
     34 
     35  nsAutoCString escPath;
     36  constexpr auto prefix = "file://"_ns;
     37 
     38  // Escape the path with the directory mask
     39  if (NS_EscapeURL(ePath.get(), -1, esc_Directory + esc_Forced, escPath)) {
     40    escPath.Insert(prefix, 0);
     41  } else {
     42    escPath.Assign(prefix + ePath);
     43  }
     44 
     45  // esc_Directory does not escape the semicolons, so if a filename
     46  // contains semicolons we need to manually escape them.
     47  // This replacement should be removed in bug #473280
     48  escPath.ReplaceSubstring(";", "%3b");
     49  result = escPath;
     50  return NS_OK;
     51 }
     52 
     53 nsresult net_GetFileFromURLSpec(const nsACString& aURL, nsIFile** result) {
     54  nsresult rv;
     55 
     56  nsAutoCString directory, fileBaseName, fileExtension, path;
     57 
     58  rv = net_ParseFileURL(aURL, directory, fileBaseName, fileExtension);
     59  if (NS_FAILED(rv)) return rv;
     60 
     61  if (!directory.IsEmpty()) {
     62    rv = NS_EscapeURL(directory, esc_Directory | esc_AlwaysCopy, path,
     63                      mozilla::fallible);
     64    if (NS_FAILED(rv)) return rv;
     65  }
     66  if (!fileBaseName.IsEmpty()) {
     67    rv = NS_EscapeURL(fileBaseName, esc_FileBaseName | esc_AlwaysCopy, path,
     68                      mozilla::fallible);
     69    if (NS_FAILED(rv)) return rv;
     70  }
     71  if (!fileExtension.IsEmpty()) {
     72    path += '.';
     73    rv = NS_EscapeURL(fileExtension, esc_FileExtension | esc_AlwaysCopy, path,
     74                      mozilla::fallible);
     75    if (NS_FAILED(rv)) return rv;
     76  }
     77 
     78  NS_UnescapeURL(path);
     79  if (path.Length() != strlen(path.get())) return NS_ERROR_FILE_INVALID_PATH;
     80 
     81  return NS_NewNativeLocalFile(path, result);
     82 }