michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* vim:set ts=4 sw=4 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* Windows-specific local file uri parsing */
michael@0: #include "nsURLHelper.h"
michael@0: #include "nsEscape.h"
michael@0: #include "nsIFile.h"
michael@0: #include <windows.h>
michael@0: 
michael@0: nsresult
michael@0: net_GetURLSpecFromActualFile(nsIFile *aFile, nsACString &result)
michael@0: {
michael@0:     nsresult rv;
michael@0:     nsAutoString path;
michael@0:   
michael@0:     // construct URL spec from file path
michael@0:     rv = aFile->GetPath(path);
michael@0:     if (NS_FAILED(rv)) return rv;
michael@0:   
michael@0:     // Replace \ with / to convert to an url
michael@0:     path.ReplaceChar(char16_t(0x5Cu), char16_t(0x2Fu));
michael@0: 
michael@0:     nsAutoCString escPath;
michael@0: 
michael@0:     // Windows Desktop paths begin with a drive letter, so need an 'extra'
michael@0:     // slash at the begining
michael@0:     // C:\Windows =>  file:///C:/Windows
michael@0:     NS_NAMED_LITERAL_CSTRING(prefix, "file:///");
michael@0: 
michael@0:     // Escape the path with the directory mask
michael@0:     NS_ConvertUTF16toUTF8 ePath(path);
michael@0:     if (NS_EscapeURL(ePath.get(), -1, esc_Directory+esc_Forced, escPath))
michael@0:         escPath.Insert(prefix, 0);
michael@0:     else
michael@0:         escPath.Assign(prefix + ePath);
michael@0: 
michael@0:     // esc_Directory does not escape the semicolons, so if a filename 
michael@0:     // contains semicolons we need to manually escape them.
michael@0:     // This replacement should be removed in bug #473280
michael@0:     escPath.ReplaceSubstring(";", "%3b");
michael@0: 
michael@0:     result = escPath;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: net_GetFileFromURLSpec(const nsACString &aURL, nsIFile **result)
michael@0: {
michael@0:     nsresult rv;
michael@0: 
michael@0:     nsCOMPtr<nsIFile> localFile(
michael@0:             do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
michael@0:     if (NS_FAILED(rv)) {
michael@0:         NS_ERROR("Only nsIFile supported right now");
michael@0:         return rv;
michael@0:     }
michael@0: 
michael@0:     localFile->SetFollowLinks(true);
michael@0: 
michael@0:     const nsACString *specPtr;
michael@0: 
michael@0:     nsAutoCString buf;
michael@0:     if (net_NormalizeFileURL(aURL, buf))
michael@0:         specPtr = &buf;
michael@0:     else
michael@0:         specPtr = &aURL;
michael@0:     
michael@0:     nsAutoCString directory, fileBaseName, fileExtension;
michael@0:     
michael@0:     rv = net_ParseFileURL(*specPtr, directory, fileBaseName, fileExtension);
michael@0:     if (NS_FAILED(rv)) return rv;
michael@0: 
michael@0:     nsAutoCString path;
michael@0: 
michael@0:     if (!directory.IsEmpty()) {
michael@0:         NS_EscapeURL(directory, esc_Directory|esc_AlwaysCopy, path);
michael@0:         if (path.Length() > 2 && path.CharAt(2) == '|')
michael@0:             path.SetCharAt(':', 2);
michael@0:         path.ReplaceChar('/', '\\');
michael@0:     }    
michael@0:     if (!fileBaseName.IsEmpty())
michael@0:         NS_EscapeURL(fileBaseName, esc_FileBaseName|esc_AlwaysCopy, path);
michael@0:     if (!fileExtension.IsEmpty()) {
michael@0:         path += '.';
michael@0:         NS_EscapeURL(fileExtension, esc_FileExtension|esc_AlwaysCopy, path);
michael@0:     }
michael@0:     
michael@0:     NS_UnescapeURL(path);
michael@0:     if (path.Length() != strlen(path.get()))
michael@0:         return NS_ERROR_FILE_INVALID_PATH;
michael@0: 
michael@0:     // remove leading '\'
michael@0:     if (path.CharAt(0) == '\\')
michael@0:         path.Cut(0, 1);
michael@0: 
michael@0:     if (IsUTF8(path))
michael@0:         rv = localFile->InitWithPath(NS_ConvertUTF8toUTF16(path));
michael@0:         // XXX In rare cases, a valid UTF-8 string can be valid as a native 
michael@0:         // encoding (e.g. 0xC5 0x83 is valid both as UTF-8 and Windows-125x).
michael@0:         // However, the chance is very low that a meaningful word in a legacy
michael@0:         // encoding is valid as UTF-8.
michael@0:     else 
michael@0:         // if path is not in UTF-8, assume it is encoded in the native charset
michael@0:         rv = localFile->InitWithNativePath(path);
michael@0: 
michael@0:     if (NS_FAILED(rv)) return rv;
michael@0: 
michael@0:     NS_ADDREF(*result = localFile);
michael@0:     return NS_OK;
michael@0: }