netwerk/base/src/nsURLHelperUnix.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

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

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* vim:set ts=4 sw=4 et cindent: */
michael@0 3 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 6
michael@0 7 /* Unix-specific local file uri parsing */
michael@0 8 #include "nsURLHelper.h"
michael@0 9 #include "nsEscape.h"
michael@0 10 #include "nsIFile.h"
michael@0 11 #include "nsNativeCharsetUtils.h"
michael@0 12
michael@0 13 nsresult
michael@0 14 net_GetURLSpecFromActualFile(nsIFile *aFile, nsACString &result)
michael@0 15 {
michael@0 16 nsresult rv;
michael@0 17 nsAutoCString nativePath, ePath;
michael@0 18 nsAutoString path;
michael@0 19
michael@0 20 rv = aFile->GetNativePath(nativePath);
michael@0 21 if (NS_FAILED(rv)) return rv;
michael@0 22
michael@0 23 // Convert to unicode and back to check correct conversion to native charset
michael@0 24 NS_CopyNativeToUnicode(nativePath, path);
michael@0 25 NS_CopyUnicodeToNative(path, ePath);
michael@0 26
michael@0 27 // Use UTF8 version if conversion was successful
michael@0 28 if (nativePath == ePath)
michael@0 29 CopyUTF16toUTF8(path, ePath);
michael@0 30 else
michael@0 31 ePath = nativePath;
michael@0 32
michael@0 33 nsAutoCString escPath;
michael@0 34 NS_NAMED_LITERAL_CSTRING(prefix, "file://");
michael@0 35
michael@0 36 // Escape the path with the directory mask
michael@0 37 if (NS_EscapeURL(ePath.get(), -1, esc_Directory+esc_Forced, escPath))
michael@0 38 escPath.Insert(prefix, 0);
michael@0 39 else
michael@0 40 escPath.Assign(prefix + ePath);
michael@0 41
michael@0 42 // esc_Directory does not escape the semicolons, so if a filename
michael@0 43 // contains semicolons we need to manually escape them.
michael@0 44 // This replacement should be removed in bug #473280
michael@0 45 escPath.ReplaceSubstring(";", "%3b");
michael@0 46 result = escPath;
michael@0 47 return NS_OK;
michael@0 48 }
michael@0 49
michael@0 50 nsresult
michael@0 51 net_GetFileFromURLSpec(const nsACString &aURL, nsIFile **result)
michael@0 52 {
michael@0 53 // NOTE: See also the implementation in nsURLHelperOSX.cpp,
michael@0 54 // which is based on this.
michael@0 55
michael@0 56 nsresult rv;
michael@0 57
michael@0 58 nsCOMPtr<nsIFile> localFile;
michael@0 59 rv = NS_NewNativeLocalFile(EmptyCString(), true, getter_AddRefs(localFile));
michael@0 60 if (NS_FAILED(rv))
michael@0 61 return rv;
michael@0 62
michael@0 63 nsAutoCString directory, fileBaseName, fileExtension, path;
michael@0 64
michael@0 65 rv = net_ParseFileURL(aURL, directory, fileBaseName, fileExtension);
michael@0 66 if (NS_FAILED(rv)) return rv;
michael@0 67
michael@0 68 if (!directory.IsEmpty())
michael@0 69 NS_EscapeURL(directory, esc_Directory|esc_AlwaysCopy, path);
michael@0 70 if (!fileBaseName.IsEmpty())
michael@0 71 NS_EscapeURL(fileBaseName, esc_FileBaseName|esc_AlwaysCopy, path);
michael@0 72 if (!fileExtension.IsEmpty()) {
michael@0 73 path += '.';
michael@0 74 NS_EscapeURL(fileExtension, esc_FileExtension|esc_AlwaysCopy, path);
michael@0 75 }
michael@0 76
michael@0 77 NS_UnescapeURL(path);
michael@0 78 if (path.Length() != strlen(path.get()))
michael@0 79 return NS_ERROR_FILE_INVALID_PATH;
michael@0 80
michael@0 81 if (IsUTF8(path)) {
michael@0 82 // speed up the start-up where UTF-8 is the native charset
michael@0 83 // (e.g. on recent Linux distributions)
michael@0 84 if (NS_IsNativeUTF8())
michael@0 85 rv = localFile->InitWithNativePath(path);
michael@0 86 else
michael@0 87 rv = localFile->InitWithPath(NS_ConvertUTF8toUTF16(path));
michael@0 88 // XXX In rare cases, a valid UTF-8 string can be valid as a native
michael@0 89 // encoding (e.g. 0xC5 0x83 is valid both as UTF-8 and Windows-125x).
michael@0 90 // However, the chance is very low that a meaningful word in a legacy
michael@0 91 // encoding is valid as UTF-8.
michael@0 92 }
michael@0 93 else
michael@0 94 // if path is not in UTF-8, assume it is encoded in the native charset
michael@0 95 rv = localFile->InitWithNativePath(path);
michael@0 96
michael@0 97 if (NS_FAILED(rv)) return rv;
michael@0 98
michael@0 99 NS_ADDREF(*result = localFile);
michael@0 100 return NS_OK;
michael@0 101 }

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