netwerk/base/src/nsURLHelperOS2.cpp

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   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
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  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  16  * The Original Code is mozilla.org code.
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  18  * The Initial Developer of the Original Code is
  19  * Netscape Communications Corporation.
  20  * Portions created by the Initial Developer are Copyright (C) 1998
  21  * the Initial Developer. All Rights Reserved.
  22  *
  23  * Contributor(s):
  24  *   Alec Flett <alecf@netscape.com>
  25  *   Darin Fisher <darin@netscape.com>
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  27  * Alternatively, the contents of this file may be used under the terms of
  28  * either the GNU General Public License Version 2 or later (the "GPL"), or
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  39  * ***** END LICENSE BLOCK ***** */
  40
  41 /* OS/2-specific local file uri parsing */
  42 #define INCL_DOSERRORS
  43 #define INCL_DOS
  44 #include <os2.h>
  45 #include "nsURLHelper.h"
  46 #include "nsEscape.h"
  47 #include "nsILocalFile.h"
  48
  49 nsresult
  50 net_GetURLSpecFromFile(nsIFile *aFile, nsACString &result)
  51 {
  52     nsresult rv;
  53     nsAutoString path;
  54
  55     // construct URL spec from file path
  56     rv = aFile->GetPath(path);
  57     if (NS_FAILED(rv)) return rv;
  58
  59     // Replace \ with / to convert to an url
  60     path.ReplaceChar(PRUnichar(0x5Cu), PRUnichar(0x2Fu));
  61
  62     nsCAutoString escPath;
  63     NS_NAMED_LITERAL_CSTRING(prefix, "file:///");
  64
  65     // Escape the path with the directory mask
  66     NS_ConvertUTF16toUTF8 ePath(path);
  67     if (NS_EscapeURL(ePath.get(), -1, esc_Directory+esc_Forced, escPath))
  68         escPath.Insert(prefix, 0);
  69     else
  70         escPath.Assign(prefix + ePath);
  71
  72     // esc_Directory does not escape the semicolons, so if a filename
  73     // contains semicolons we need to manually escape them.
  74     escPath.ReplaceSubstring(";", "%3b");
  75
  76     // if this file references a directory, then we need to ensure that the
  77     // URL ends with a slash.  this is important since it affects the rules
  78     // for relative URL resolution when this URL is used as a base URL.
  79     // if the file does not exist, then we make no assumption about its type,
  80     // and simply leave the URL unmodified.
  81     if (escPath.Last() != '/') {
  82         PRBool dir;
  83         rv = aFile->IsDirectory(&dir);
  84         if (NS_SUCCEEDED(rv) && dir)
  85             escPath += '/';
  86     }
  87
  88     result = escPath;
  89     return NS_OK;
  90 }
  91
  92 nsresult
  93 net_GetFileFromURLSpec(const nsACString &aURL, nsIFile **result)
  94 {
  95     nsresult rv;
  96
  97     nsCOMPtr<nsILocalFile> localFile(
  98             do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
  99     if (NS_FAILED(rv)) {
 100         NS_ERROR("Only nsILocalFile supported right now");
 101         return rv;
 102     }
 103
 104     const nsACString *specPtr;
 105
 106     nsCAutoString buf;
 107     if (net_NormalizeFileURL(aURL, buf))
 108         specPtr = &buf;
 109     else
 110         specPtr = &aURL;
 111
 112     nsCAutoString directory, fileBaseName, fileExtension;
 113
 114     rv = net_ParseFileURL(*specPtr, directory, fileBaseName, fileExtension);
 115     if (NS_FAILED(rv)) return rv;
 116
 117     nsCAutoString path;
 118
 119     if (!directory.IsEmpty()) {
 120         NS_EscapeURL(directory, esc_Directory|esc_AlwaysCopy, path);
 121         if (path.Length() > 2 && path.CharAt(2) == '|')
 122             path.SetCharAt(':', 2);
 123         path.ReplaceChar('/', '\\');
 124     }
 125     if (!fileBaseName.IsEmpty())
 126         NS_EscapeURL(fileBaseName, esc_FileBaseName|esc_AlwaysCopy, path);
 127     if (!fileExtension.IsEmpty()) {
 128         path += '.';
 129         NS_EscapeURL(fileExtension, esc_FileExtension|esc_AlwaysCopy, path);
 130     }
 131
 132     NS_UnescapeURL(path);
 133     if (path.Length() != strlen(path.get()))
 134         return NS_ERROR_FILE_INVALID_PATH;
 135
 136     // remove leading '\'
 137     if (path.CharAt(0) == '\\')
 138         path.Cut(0, 1);
 139
 140     if (IsUTF8(path))
 141         rv = localFile->InitWithPath(NS_ConvertUTF8toUTF16(path));
 142         // XXX In rare cases, a valid UTF-8 string can be valid as a native
 143         // encoding (e.g. 0xC5 0x83 is valid both as UTF-8 and Windows-125x).
 144         // However, the chance is very low that a meaningful word in a legacy
 145         // encoding is valid as UTF-8.
 146     else
 147         // if path is not in UTF-8, assume it is encoded in the native charset
 148         rv = localFile->InitWithNativePath(path);
 149
 150     if (NS_FAILED(rv)) return rv;
 151
 152     NS_ADDREF(*result = localFile);
 153     return NS_OK;
 154 }
 155