Line data    Source code

       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/. */
       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             : 
      13             : nsresult
      14        2467 : net_GetURLSpecFromActualFile(nsIFile *aFile, nsACString &result)
      15             : {
      16             :     nsresult rv;
      17        4934 :     nsAutoCString nativePath, ePath;
      18        4934 :     nsAutoString path;
      19             : 
      20        2467 :     rv = aFile->GetNativePath(nativePath);
      21        2467 :     if (NS_FAILED(rv)) return rv;
      22             : 
      23             :     // Convert to unicode and back to check correct conversion to native charset
      24        2467 :     NS_CopyNativeToUnicode(nativePath, path);
      25        2467 :     NS_CopyUnicodeToNative(path, ePath);
      26             : 
      27             :     // Use UTF8 version if conversion was successful
      28        2467 :     if (nativePath == ePath)
      29        2467 :         CopyUTF16toUTF8(path, ePath);
      30             :     else
      31           0 :         ePath = nativePath;
      32             : 
      33        4934 :     nsAutoCString escPath;
      34        2467 :     NS_NAMED_LITERAL_CSTRING(prefix, "file://");
      35             : 
      36             :     // Escape the path with the directory mask
      37        2467 :     if (NS_EscapeURL(ePath.get(), -1, esc_Directory+esc_Forced, escPath))
      38           1 :         escPath.Insert(prefix, 0);
      39             :     else
      40        2466 :         escPath.Assign(prefix + ePath);
      41             : 
      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        2467 :     escPath.ReplaceSubstring(";", "%3b");
      46        2467 :     result = escPath;
      47        2467 :     return NS_OK;
      48             : }
      49             : 
      50             : nsresult
      51        2655 : net_GetFileFromURLSpec(const nsACString &aURL, nsIFile **result)
      52             : {
      53             :     // NOTE: See also the implementation in nsURLHelperOSX.cpp,
      54             :     // which is based on this.
      55             : 
      56             :     nsresult rv;
      57             : 
      58        5310 :     nsCOMPtr<nsIFile> localFile;
      59        2655 :     rv = NS_NewNativeLocalFile(EmptyCString(), true, getter_AddRefs(localFile));
      60        2655 :     if (NS_FAILED(rv))
      61           0 :       return rv;
      62             : 
      63        5310 :     nsAutoCString directory, fileBaseName, fileExtension, path;
      64             : 
      65        2655 :     rv = net_ParseFileURL(aURL, directory, fileBaseName, fileExtension);
      66        2655 :     if (NS_FAILED(rv)) return rv;
      67             : 
      68        2655 :     if (!directory.IsEmpty()) {
      69             :         rv = NS_EscapeURL(directory, esc_Directory|esc_AlwaysCopy, path,
      70        2655 :                          mozilla::fallible);
      71        2655 :         if (NS_FAILED(rv))
      72           0 :           return rv;
      73             :     }
      74        2655 :     if (!fileBaseName.IsEmpty()) {
      75             :         rv = NS_EscapeURL(fileBaseName, esc_FileBaseName|esc_AlwaysCopy, path,
      76        2655 :                           mozilla::fallible);
      77        2655 :         if (NS_FAILED(rv))
      78           0 :           return rv;
      79             :     }
      80        2655 :     if (!fileExtension.IsEmpty()) {
      81        2653 :         path += '.';
      82             :         rv = NS_EscapeURL(fileExtension, esc_FileExtension|esc_AlwaysCopy, path,
      83        2653 :                           mozilla::fallible);
      84        2653 :         if (NS_FAILED(rv))
      85           0 :           return rv;
      86             :     }
      87             : 
      88        2655 :     NS_UnescapeURL(path);
      89        2655 :     if (path.Length() != strlen(path.get()))
      90           0 :         return NS_ERROR_FILE_INVALID_PATH;
      91             : 
      92        2655 :     if (IsUTF8(path)) {
      93             :         // speed up the start-up where UTF-8 is the native charset
      94             :         // (e.g. on recent Linux distributions)
      95        2655 :         if (NS_IsNativeUTF8())
      96        2655 :             rv = localFile->InitWithNativePath(path);
      97             :         else
      98           0 :             rv = localFile->InitWithPath(NS_ConvertUTF8toUTF16(path));
      99             :             // XXX In rare cases, a valid UTF-8 string can be valid as a native
     100             :             // encoding (e.g. 0xC5 0x83 is valid both as UTF-8 and Windows-125x).
     101             :             // However, the chance is very low that a meaningful word in a legacy
     102             :             // encoding is valid as UTF-8.
     103             :     }
     104             :     else
     105             :         // if path is not in UTF-8, assume it is encoded in the native charset
     106           0 :         rv = localFile->InitWithNativePath(path);
     107             : 
     108        2655 :     if (NS_FAILED(rv)) return rv;
     109             : 
     110        2655 :     localFile.forget(result);
     111        2655 :     return NS_OK;
     112             : }