The Tor Browser: netwerk/base/src/nsURLHelperUnix.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     2 /* vim:set ts=4 sw=4 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/. */

     7 /* Unix-specific local file uri parsing */

     8 #include "nsURLHelper.h"

     9 #include "nsEscape.h"

    10 #include "nsIFile.h"

    11 #include "nsNativeCharsetUtils.h"

    13 nsresult

    14 net_GetURLSpecFromActualFile(nsIFile *aFile, nsACString &result)

    15 {

    16     nsresult rv;

    17     nsAutoCString nativePath, ePath;

    18     nsAutoString path;

    20     rv = aFile->GetNativePath(nativePath);

    21     if (NS_FAILED(rv)) return rv;

    23     // Convert to unicode and back to check correct conversion to native charset

    24     NS_CopyNativeToUnicode(nativePath, path);

    25     NS_CopyUnicodeToNative(path, ePath);

    27     // Use UTF8 version if conversion was successful

    28     if (nativePath == ePath)

    29         CopyUTF16toUTF8(path, ePath);

    30     else

    31         ePath = nativePath;

    33     nsAutoCString escPath;

    34     NS_NAMED_LITERAL_CSTRING(prefix, "file://");

    36     // Escape the path with the directory mask

    37     if (NS_EscapeURL(ePath.get(), -1, esc_Directory+esc_Forced, escPath))

    38         escPath.Insert(prefix, 0);

    39     else

    40         escPath.Assign(prefix + ePath);

    42     // esc_Directory does not escape the semicolons, so if a filename

    43     // contains semicolons we need to manually escape them.

    44     // This replacement should be removed in bug #473280

    45     escPath.ReplaceSubstring(";", "%3b");

    46     result = escPath;

    47     return NS_OK;

    48 }

    50 nsresult

    51 net_GetFileFromURLSpec(const nsACString &aURL, nsIFile **result)

    52 {

    53     // NOTE: See also the implementation in nsURLHelperOSX.cpp,

    54     // which is based on this.

    56     nsresult rv;

    58     nsCOMPtr<nsIFile> localFile;

    59     rv = NS_NewNativeLocalFile(EmptyCString(), true, getter_AddRefs(localFile));

    60     if (NS_FAILED(rv))

    61       return rv;

    63     nsAutoCString directory, fileBaseName, fileExtension, path;

    65     rv = net_ParseFileURL(aURL, directory, fileBaseName, fileExtension);

    66     if (NS_FAILED(rv)) return rv;

    68     if (!directory.IsEmpty())

    69         NS_EscapeURL(directory, esc_Directory|esc_AlwaysCopy, path);

    70     if (!fileBaseName.IsEmpty())

    71         NS_EscapeURL(fileBaseName, esc_FileBaseName|esc_AlwaysCopy, path);

    72     if (!fileExtension.IsEmpty()) {

    73         path += '.';

    74         NS_EscapeURL(fileExtension, esc_FileExtension|esc_AlwaysCopy, path);

    75     }

    77     NS_UnescapeURL(path);

    78     if (path.Length() != strlen(path.get()))

    79         return NS_ERROR_FILE_INVALID_PATH;

    81     if (IsUTF8(path)) {

    82         // speed up the start-up where UTF-8 is the native charset

    83         // (e.g. on recent Linux distributions)

    84         if (NS_IsNativeUTF8())

    85             rv = localFile->InitWithNativePath(path);

    86         else

    87             rv = localFile->InitWithPath(NS_ConvertUTF8toUTF16(path));

    88             // XXX In rare cases, a valid UTF-8 string can be valid as a native

    89             // encoding (e.g. 0xC5 0x83 is valid both as UTF-8 and Windows-125x).

    90             // However, the chance is very low that a meaningful word in a legacy

    91             // encoding is valid as UTF-8.

    92     }

    93     else

    94         // if path is not in UTF-8, assume it is encoded in the native charset

    95         rv = localFile->InitWithNativePath(path);

    97     if (NS_FAILED(rv)) return rv;

    99     NS_ADDREF(*result = localFile);

   100     return NS_OK;

   101 }

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