mirror of
https://github.com/mozilla/gecko-dev.git
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694 lines
21 KiB
C++
694 lines
21 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications, Inc. Portions created by Netscape are
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* Copyright (C) 1999, Mozilla. All Rights Reserved.
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*
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* Contributor(s):
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* Adam Lock <adamlock@netscape.com>
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*/
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsNetUtil.h"
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#include "nsEscape.h"
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#include "nsCRT.h"
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#include "nsIPlatformCharset.h"
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#include "nsILocalFile.h"
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#include "nsIURIFixup.h"
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#include "nsDefaultURIFixup.h"
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/* Implementation file */
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NS_IMPL_ISUPPORTS1(nsDefaultURIFixup, nsIURIFixup)
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nsDefaultURIFixup::nsDefaultURIFixup()
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{
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NS_INIT_ISUPPORTS();
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/* member initializers and constructor code */
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}
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nsDefaultURIFixup::~nsDefaultURIFixup()
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{
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/* destructor code */
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}
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/* nsIURI createExposableURI (in nsIRUI aURI); */
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NS_IMETHODIMP
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nsDefaultURIFixup::CreateExposableURI(nsIURI *aURI, nsIURI **aReturn)
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{
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NS_ENSURE_ARG_POINTER(aURI);
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NS_ENSURE_ARG_POINTER(aReturn);
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PRBool isWyciwyg = PR_FALSE;
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aURI->SchemeIs("wyciwyg", &isWyciwyg);
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if (!isWyciwyg)
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{
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*aReturn = aURI;
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NS_ADDREF(*aReturn);
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return NS_OK;
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}
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nsCAutoString path;
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nsresult rv = aURI->GetPath(path);
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NS_ENSURE_SUCCESS(rv, rv);
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PRUint32 pathLength = path.Length();
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if (pathLength <= 2)
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{
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return NS_ERROR_FAILURE;
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}
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// Path is of the form "//123/http://foo/bar", with a variable number of digits.
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// To figure out where the "real" URL starts, search path for a '/', starting at
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// the third character.
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PRInt32 slashIndex = path.FindChar('/', 2);
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if (slashIndex == kNotFound)
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{
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return NS_ERROR_FAILURE;
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}
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// Get the charset of the original URI so we can pass it to our fixed up URI.
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nsCAutoString charset;
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aURI->GetOriginCharset(charset);
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rv = NS_NewURI(aReturn,
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Substring(path, slashIndex + 1, pathLength - slashIndex - 1),
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charset.get());
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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/* nsIURI createFixupURI (in wstring aURIText, in unsigned long aFixupFlags); */
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NS_IMETHODIMP
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nsDefaultURIFixup::CreateFixupURI(const nsAString& aStringURI, PRUint32 aFixupFlags, nsIURI **aURI)
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{
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NS_ENSURE_ARG(!aStringURI.IsEmpty());
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NS_ENSURE_ARG_POINTER(aURI);
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nsresult rv;
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*aURI = nsnull;
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// Try and get the prefs service
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if (!mPrefs)
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{
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mPrefs = do_GetService(NS_PREF_CONTRACTID);
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}
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nsAutoString uriString(aStringURI);
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uriString.Trim(" "); // Cleanup the empty spaces that might be on each end.
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// Eliminate embedded newlines, which single-line text fields now allow:
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uriString.StripChars("\r\n");
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NS_ENSURE_TRUE(!uriString.IsEmpty(), NS_ERROR_FAILURE);
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// View-source is a pseudo scheme. We're interested in fixing up the stuff
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// after it. The easiest way to do that is to call this method again with the
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// "view-source:" lopped off and then prepend it again afterwards.
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if (uriString.EqualsIgnoreCase("view-source:", 12))
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{
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nsCOMPtr<nsIURI> uri;
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PRUint32 newFixupFlags = aFixupFlags & ~FIXUP_FLAG_ALLOW_KEYWORD_LOOKUP;
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rv = CreateFixupURI(Substring(uriString, 12, uriString.Length() - 12),
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newFixupFlags, getter_AddRefs(uri));
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if (NS_FAILED(rv))
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return NS_ERROR_FAILURE;
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nsCAutoString spec;
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uri->GetSpec(spec);
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uriString.Assign(NS_LITERAL_STRING("view-source:") + NS_ConvertUTF8toUCS2(spec));
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}
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else {
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// Check for if it is a file URL
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FileURIFixup(uriString, aURI);
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if(*aURI)
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return NS_OK;
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#ifdef XP_PC
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// Not a file URL, so translate '\' to '/' for convenience in the common protocols
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// e.g. catch
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//
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// http:\\broken.com\address
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// http:\\broken.com/blah
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// broken.com\blah
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//
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// Code will also do partial fix up the following urls
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//
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// http:\\broken.com\address/somewhere\image.jpg (stops at first forward slash)
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// http:\\broken.com\blah?arg=somearg\foo.jpg (stops at question mark)
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// http:\\broken.com#odd\ref (stops at hash)
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//
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if (uriString.FindChar(':') == -1 ||
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uriString.EqualsIgnoreCase("http:", 5) ||
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uriString.EqualsIgnoreCase("https:", 6) ||
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uriString.EqualsIgnoreCase("ftp:", 4))
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{
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// Walk the string replacing backslashes with forward slashes until
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// the end is reached, or a question mark, or a hash, or a forward
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// slash. The forward slash test is to stop before trampling over
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// URIs which legitimately contain a mix of both forward and
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// backward slashes.
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nsAFlatString::iterator start;
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nsAFlatString::iterator end;
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uriString.BeginWriting(start);
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uriString.EndWriting(end);
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while (start != end) {
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if (*start == '?' || *start == '#' || *start == '/')
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break;
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if (*start == '\\')
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*start = '/';
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++start;
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}
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}
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#endif
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}
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// For these protocols, use system charset instead of the default UTF-8,
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// if the URI is non ASCII.
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PRBool bAsciiURI = IsASCII(uriString);
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PRBool bUseNonDefaultCharsetForURI =
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!bAsciiURI &&
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(uriString.FindChar(':') == kNotFound ||
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uriString.EqualsIgnoreCase("http:", 5) ||
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uriString.EqualsIgnoreCase("https:", 6) ||
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uriString.EqualsIgnoreCase("ftp:", 4) ||
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uriString.EqualsIgnoreCase("file:", 5));
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// Just try to create an URL out of it
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rv = NS_NewURI(aURI, uriString, bUseNonDefaultCharsetForURI ? GetCharsetForUrlBar() : nsnull);
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if (rv == NS_ERROR_UNKNOWN_PROTOCOL)
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{
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if (!PossiblyHostPortUrl(uriString))
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return NS_ERROR_UNKNOWN_PROTOCOL;
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}
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if (*aURI) {
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if (aFixupFlags & FIXUP_FLAGS_MAKE_ALTERNATE_URI)
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MakeAlternateURI(*aURI);
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return NS_OK;
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}
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// See if it is a keyword
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// Test whether keywords need to be fixed up
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if (aFixupFlags & FIXUP_FLAG_ALLOW_KEYWORD_LOOKUP) {
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PRBool fixupKeywords = PR_FALSE;
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if (mPrefs)
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{
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NS_ENSURE_SUCCESS(mPrefs->GetBoolPref("keyword.enabled", &fixupKeywords), NS_ERROR_FAILURE);
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}
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if (fixupKeywords)
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{
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KeywordURIFixup(uriString, aURI);
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if(*aURI)
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return NS_OK;
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}
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}
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// Prune duff protocol schemes
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//
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// ://totallybroken.url.com
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// //shorthand.url.com
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//
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if (uriString.EqualsIgnoreCase("://", 3))
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{
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nsAutoString newUriString;
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uriString.Mid(newUriString, 3, uriString.Length() - 3);
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uriString = newUriString;
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}
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else if (uriString.EqualsIgnoreCase("//", 2))
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{
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nsAutoString newUriString;
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uriString.Mid(newUriString, 2, uriString.Length() - 2);
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uriString = newUriString;
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}
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// Add ftp:// or http:// to front of url if it has no spec
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//
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// Should fix:
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//
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// no-scheme.com
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// ftp.no-scheme.com
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// ftp4.no-scheme,com
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// no-scheme.com/query?foo=http://www.foo.com
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//
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PRInt32 schemeDelim = uriString.Find("://",0);
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PRInt32 firstDelim = uriString.FindCharInSet("/:");
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if (schemeDelim <= 0 ||
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(firstDelim != -1 && schemeDelim > firstDelim)) {
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// find host name
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PRInt32 hostPos = uriString.FindCharInSet("/:?#");
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if (hostPos == -1)
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hostPos = uriString.Length();
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// extract host name
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nsAutoString hostSpec;
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uriString.Left(hostSpec, hostPos);
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// insert url spec corresponding to host name
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if (hostSpec.EqualsIgnoreCase("ftp", 3))
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uriString.Assign(NS_LITERAL_STRING("ftp://") + uriString);
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else
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uriString.Assign(NS_LITERAL_STRING("http://") + uriString);
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// For ftp & http, we want to use system charset.
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if (!bAsciiURI)
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bUseNonDefaultCharsetForURI = PR_TRUE;
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} // end if checkprotocol
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rv = NS_NewURI(aURI, uriString, bUseNonDefaultCharsetForURI ? GetCharsetForUrlBar() : nsnull);
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// Did the caller want us to try an alternative URI?
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// If so, attempt to fixup http://foo into http://www.foo.com
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if (*aURI && aFixupFlags & FIXUP_FLAGS_MAKE_ALTERNATE_URI) {
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MakeAlternateURI(*aURI);
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}
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return rv;
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}
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PRBool nsDefaultURIFixup::MakeAlternateURI(nsIURI *aURI)
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{
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PRBool makeAlternate = PR_TRUE;
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if (!mPrefs)
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{
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return PR_FALSE;
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}
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mPrefs->GetBoolPref("browser.fixup.alternate.enabled", &makeAlternate);
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if (!makeAlternate)
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{
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return PR_FALSE;
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}
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// Code only works for http. Not for any other protocol including https!
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PRBool isHttp = PR_FALSE;
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aURI->SchemeIs("http", &isHttp);
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if (!isHttp) {
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return PR_FALSE;
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}
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// Security - URLs with user / password info should NOT be fixed up
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nsCAutoString userpass;
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aURI->GetUserPass(userpass);
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if (userpass.Length() > 0) {
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return PR_FALSE;
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}
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nsCAutoString oldHost;
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nsCAutoString newHost;
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aURI->GetHost(oldHost);
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// Count the dots
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PRInt32 numDots = 0;
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nsReadingIterator<char> iter;
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nsReadingIterator<char> iterEnd;
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oldHost.BeginReading(iter);
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oldHost.EndReading(iterEnd);
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while (iter != iterEnd) {
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if (*iter == '.')
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numDots++;
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++iter;
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}
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nsresult rv;
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// Get the prefix and suffix to stick onto the new hostname. By default these
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// are www. & .com but they could be any other value, e.g. www. & .org
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nsCAutoString prefix("www.");
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nsXPIDLCString prefPrefix;
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rv = mPrefs->GetCharPref("browser.fixup.alternate.prefix", getter_Copies(prefPrefix));
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if (NS_SUCCEEDED(rv))
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{
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prefix.Assign(prefPrefix);
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}
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nsCAutoString suffix(".com");
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nsXPIDLCString prefSuffix;
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rv = mPrefs->GetCharPref("browser.fixup.alternate.suffix", getter_Copies(prefSuffix));
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if (NS_SUCCEEDED(rv))
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{
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suffix.Assign(prefSuffix);
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}
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if (numDots == 0)
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{
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newHost.Assign(prefix);
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newHost.Append(oldHost);
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newHost.Append(suffix);
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}
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else if (numDots == 1)
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{
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if (prefix.Length() > 0 &&
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oldHost.EqualsIgnoreCase(prefix.get(), prefix.Length())) {
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newHost.Assign(oldHost);
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newHost.Append(suffix);
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}
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else if (suffix.Length() > 0) {
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newHost.Assign(prefix);
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newHost.Append(oldHost);
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}
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else
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{
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// Do nothing
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return PR_FALSE;
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}
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}
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else
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{
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// Do nothing
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return PR_FALSE;
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}
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if (newHost.IsEmpty()) {
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return PR_FALSE;
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}
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// Assign the new host string over the old one
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aURI->SetHost(newHost);
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return PR_TRUE;
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}
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nsresult nsDefaultURIFixup::FileURIFixup(const nsAString& aStringURI,
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nsIURI** aURI)
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{
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nsCAutoString uriSpecOut;
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nsresult rv = ConvertFileToStringURI(aStringURI, uriSpecOut);
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if (NS_SUCCEEDED(rv))
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{
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// if this is file url, uriSpecOut is already in FS charset
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if(NS_SUCCEEDED(NS_NewURI(aURI, uriSpecOut.get(), nsnull)))
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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nsresult nsDefaultURIFixup::ConvertFileToStringURI(const nsAString& aIn,
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nsCString& aOut)
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{
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PRBool attemptFixup = PR_FALSE;
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#ifdef XP_PC
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// Check for \ in the url-string or just a drive (PC)
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if(kNotFound != aIn.FindChar(PRUnichar('\\')) || ((aIn.Length() == 2 ) && (aIn.Last() == PRUnichar(':') || aIn.Last() == PRUnichar('|'))))
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{
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attemptFixup = PR_TRUE;
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}
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#elif XP_UNIX
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// Check if it starts with / (UNIX)
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if(aIn.First() == PRUnichar('/'))
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{
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attemptFixup = PR_TRUE;
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}
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#else
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// Do nothing (All others for now)
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#endif
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if (attemptFixup)
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{
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// Test if this is a valid path by trying to create a local file
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// object. The URL of that is returned if successful.
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// NOTE: Please be sure to check that the call to NS_NewLocalFile
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// rejects bad file paths when using this code on a new
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// platform.
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nsCOMPtr<nsILocalFile> filePath;
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nsresult rv;
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// this is not the real fix but a temporary fix
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// in order to really fix the problem, we need to change the
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// nsICmdLineService interface to use wstring to pass paramenters
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// instead of string since path name and other argument could be
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// in non ascii.(see bug 87127) Since it is too risky to make interface change right
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// now, we decide not to do so now.
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// Therefore, the aIn we receive here maybe already in damage form
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// (e.g. treat every bytes as ISO-8859-1 and cast up to PRUnichar
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// while the real data could be in file system charset )
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// we choice the following logic which will work for most of the case.
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// Case will still failed only if it meet ALL the following condiction:
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// 1. running on CJK, Russian, or Greek system, and
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// 2. user type it from URL bar
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// 3. the file name contains character in the range of
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// U+00A1-U+00FF but encode as different code point in file
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// system charset (e.g. ACP on window)- this is very rare case
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// We should remove this logic and convert to File system charset here
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// once we change nsICmdLineService to use wstring and ensure
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// all the Unicode data come in is correctly converted.
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if (PossiblyByteExpandedFileName(aIn)) {
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// removes high byte
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rv = NS_NewNativeLocalFile(NS_LossyConvertUCS2toASCII(aIn), PR_FALSE, getter_AddRefs(filePath));
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}
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else {
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// input is unicode
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rv = NS_NewLocalFile(aIn, PR_FALSE, getter_AddRefs(filePath));
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}
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if (NS_SUCCEEDED(rv))
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{
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NS_GetURLSpecFromFile(filePath, aOut);
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return NS_OK;
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}
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}
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return NS_ERROR_FAILURE;
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}
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PRBool nsDefaultURIFixup::PossiblyHostPortUrl(const nsAString &aUrl)
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{
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// Oh dear, the protocol is invalid. Test if the protocol might
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// actually be a url without a protocol:
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//
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// http://www.faqs.org/rfcs/rfc1738.html
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// http://www.faqs.org/rfcs/rfc2396.html
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//
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// e.g. Anything of the form:
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//
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// <hostname>:<port> or
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// <hostname>:<port>/
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//
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// Where <hostname> is a string of alphanumeric characters and dashes
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// seperated by dots.
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// and <port> is a 5 or less digits. This actually breaks the rfc2396
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// definition of a scheme which allows dots in schemes.
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//
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// Note:
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// People expecting this to work with
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// <user>:<password>@<host>:<port>/<url-path> will be disappointed!
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//
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// Note: Parser could be a lot tighter, tossing out silly hostnames
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// such as those containing consecutive dots and so on.
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// Read the hostname which should of the form
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// [a-zA-Z0-9\-]+(\.[a-zA-Z0-9\-]+)*:
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nsReadingIterator<PRUnichar> iterBegin;
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nsReadingIterator<PRUnichar> iterEnd;
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aUrl.BeginReading(iterBegin);
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aUrl.EndReading(iterEnd);
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nsReadingIterator<PRUnichar> iter = iterBegin;
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while (iter != iterEnd)
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{
|
|
PRUint32 chunkSize = 0;
|
|
// Parse a chunk of the address
|
|
while (iter != iterEnd &&
|
|
(*iter == PRUnichar('-') ||
|
|
nsCRT::IsAsciiAlpha(*iter) ||
|
|
nsCRT::IsAsciiDigit(*iter)))
|
|
{
|
|
++chunkSize;
|
|
++iter;
|
|
}
|
|
if (chunkSize == 0 || iter == iterEnd)
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
if (*iter == PRUnichar(':'))
|
|
{
|
|
// Go onto checking the for the digits
|
|
break;
|
|
}
|
|
if (*iter != PRUnichar('.'))
|
|
{
|
|
// Whatever it is, it ain't a hostname!
|
|
return PR_FALSE;
|
|
}
|
|
++iter;
|
|
}
|
|
if (iter == iterEnd)
|
|
{
|
|
// No point continuing since there is no colon
|
|
return PR_FALSE;
|
|
}
|
|
++iter;
|
|
|
|
// Count the number of digits after the colon and before the
|
|
// next forward slash (or end of string)
|
|
|
|
PRUint32 digitCount = 0;
|
|
while (iter != iterEnd && digitCount <= 5)
|
|
{
|
|
if (nsCRT::IsAsciiDigit(*iter))
|
|
{
|
|
digitCount++;
|
|
}
|
|
else if (*iter == PRUnichar('/'))
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
// Whatever it is, it ain't a port!
|
|
return PR_FALSE;
|
|
}
|
|
++iter;
|
|
}
|
|
if (digitCount == 0 || digitCount > 5)
|
|
{
|
|
// No digits or more digits than a port would have.
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Yes, it's possibly a host:port url
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool nsDefaultURIFixup::PossiblyByteExpandedFileName(const nsAString& aIn)
|
|
{
|
|
// XXXXX HACK XXXXX : please don't copy this code.
|
|
// There are cases where aIn contains the locale byte chars padded to short
|
|
// (thus the name "ByteExpanded"); whereas other cases
|
|
// have proper Unicode code points.
|
|
// This is a temporary fix. Please refer to 58866, 86948
|
|
|
|
nsReadingIterator<PRUnichar> iter;
|
|
nsReadingIterator<PRUnichar> iterEnd;
|
|
aIn.BeginReading(iter);
|
|
aIn.EndReading(iterEnd);
|
|
while (iter != iterEnd)
|
|
{
|
|
if (*iter >= 0x0080 && *iter <= 0x00FF)
|
|
return PR_TRUE;
|
|
++iter;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
const char * nsDefaultURIFixup::GetFileSystemCharset()
|
|
{
|
|
if (mFsCharset.IsEmpty())
|
|
{
|
|
nsresult rv;
|
|
nsAutoString charset;
|
|
nsCOMPtr<nsIPlatformCharset> plat(do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &rv));
|
|
if (NS_SUCCEEDED(rv))
|
|
rv = plat->GetCharset(kPlatformCharsetSel_FileName, charset);
|
|
|
|
if (charset.IsEmpty())
|
|
mFsCharset.Assign(NS_LITERAL_CSTRING("ISO-8859-1"));
|
|
else
|
|
mFsCharset.Assign(NS_LossyConvertUCS2toASCII(charset));
|
|
}
|
|
|
|
return mFsCharset.get();
|
|
}
|
|
|
|
const char * nsDefaultURIFixup::GetCharsetForUrlBar()
|
|
{
|
|
const char *charset = GetFileSystemCharset();
|
|
#ifdef XP_MAC
|
|
// check for "x-mac-" prefix
|
|
if ((strlen(charset) >= 6) && charset[0] == 'x' && charset[2] == 'm')
|
|
{
|
|
if (!strcmp("x-mac-roman", charset))
|
|
return "ISO-8859-1";
|
|
// we can do more x-mac-xxxx mapping here
|
|
// or somewhere in intl code like nsIPlatformCharset.
|
|
}
|
|
#endif
|
|
return charset;
|
|
}
|
|
|
|
nsresult nsDefaultURIFixup::KeywordURIFixup(const nsAString & aURIString,
|
|
nsIURI** aURI)
|
|
{
|
|
// These are keyword formatted strings
|
|
// "what is mozilla"
|
|
// "what is mozilla?"
|
|
// "?mozilla"
|
|
// "?What is mozilla"
|
|
|
|
// These are not keyword formatted strings
|
|
// "www.blah.com" - anything with a dot in it
|
|
// "nonQualifiedHost:80" - anything with a colon in it
|
|
// "nonQualifiedHost?"
|
|
// "nonQualifiedHost?args"
|
|
// "nonQualifiedHost?some args"
|
|
|
|
if(aURIString.FindChar('.') == -1 && aURIString.FindChar(':') == -1)
|
|
{
|
|
PRInt32 qMarkLoc = aURIString.FindChar('?');
|
|
PRInt32 spaceLoc = aURIString.FindChar(' ');
|
|
|
|
PRBool keyword = PR_FALSE;
|
|
if(qMarkLoc == 0)
|
|
keyword = PR_TRUE;
|
|
else if((spaceLoc > 0) && ((qMarkLoc == -1) || (spaceLoc < qMarkLoc)))
|
|
keyword = PR_TRUE;
|
|
|
|
if(keyword)
|
|
{
|
|
nsCAutoString keywordSpec("keyword:");
|
|
char *utf8Spec = ToNewUTF8String(aURIString);
|
|
if(utf8Spec)
|
|
{
|
|
char* escapedUTF8Spec = nsEscape(utf8Spec, url_Path);
|
|
if(escapedUTF8Spec)
|
|
{
|
|
keywordSpec.Append(escapedUTF8Spec);
|
|
NS_NewURI(aURI, keywordSpec.get(), nsnull);
|
|
nsMemory::Free(escapedUTF8Spec);
|
|
} // escapedUTF8Spec
|
|
nsMemory::Free(utf8Spec);
|
|
} // utf8Spec
|
|
} // keyword
|
|
} // FindChar
|
|
|
|
if(*aURI)
|
|
return NS_OK;
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
nsresult NS_NewURIFixup(nsIURIFixup **aURIFixup)
|
|
{
|
|
nsDefaultURIFixup *fixup = new nsDefaultURIFixup;
|
|
if (fixup == nsnull)
|
|
{
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
return fixup->QueryInterface(NS_GET_IID(nsIURIFixup), (void **) aURIFixup);
|
|
}
|
|
|