зеркало из https://github.com/mozilla/pjs.git
546 строки
17 KiB
C++
546 строки
17 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 "nsICharsetConverterManager.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 createFixupURI (in wstring aURIText, in unsigned long aFixupFlags); */
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NS_IMETHODIMP
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nsDefaultURIFixup::CreateFixupURI(const PRUnichar *aStringURI, PRUint32 aFixupFlags, nsIURI **aURI)
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{
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NS_ENSURE_ARG_POINTER(aStringURI);
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NS_ENSURE_ARG_POINTER(aURI);
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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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// 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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nsAutoString tempString;
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tempString = Substring(uriString, 12, uriString.Length() - 12);
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nsresult rv = CreateFixupURI(tempString.get(),
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newFixupFlags,
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getter_AddRefs(uri));
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if (NS_FAILED(rv) || !uri)
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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.get(), 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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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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uriString.ReplaceChar(PRUnichar('\\'), PRUnichar('/'));
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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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NS_NewURI(aURI, uriString, bUseNonDefaultCharsetForURI ? GetCharsetForUrlBar() : nsnull);
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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.get(), 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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nsresult 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 PRUnichar* aStringURI,
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nsIURI** aURI)
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{
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nsAutoString uriSpecIn(aStringURI);
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nsCAutoString uriSpecOut;
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nsresult rv = ConvertFileToStringURI(uriSpecIn, 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(nsString& 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 / or \ (UNIX)
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const PRUnichar * up = aIn.get();
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if((PRUnichar('/') == *up) || (PRUnichar('\\') == *up))
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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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nsCAutoString file;
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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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file.AssignWithConversion(aIn);
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}
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else {
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// converts from Unicode to FS Charset
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ConvertStringURIToFileCharset(aIn, file);
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}
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nsresult rv = NS_NewLocalFile(file.get(), PR_FALSE, getter_AddRefs(filePath));
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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::PossiblyByteExpandedFileName(nsString& aIn)
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{
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// XXXXX HACK XXXXX : please don't copy this code.
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// There are cases where aIn contains the locale byte chars padded to short
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// (thus the name "ByteExpanded"); whereas other cases
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// have proper Unicode code points.
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// This is a temporary fix. Please refer to 58866, 86948
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const PRUnichar* uniChar = aIn.get();
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for (PRUint32 i = 0; i < aIn.Length(); i++) {
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if ((uniChar[i] >= 0x0080) && (uniChar[i] <= 0x00FF)) {
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return PR_TRUE;
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}
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}
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return PR_FALSE;
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}
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const char * nsDefaultURIFixup::GetFileSystemCharset()
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{
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if (mFsCharset.IsEmpty())
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{
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nsresult rv;
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nsAutoString charset;
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nsCOMPtr<nsIPlatformCharset> plat(do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &rv));
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if (NS_SUCCEEDED(rv))
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rv = plat->GetCharset(kPlatformCharsetSel_FileName, charset);
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if (charset.IsEmpty())
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mFsCharset.Assign(NS_LITERAL_CSTRING("ISO-8859-1"));
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else
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mFsCharset.Assign(NS_LossyConvertUCS2toASCII(charset));
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}
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return mFsCharset.get();
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}
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const char * nsDefaultURIFixup::GetCharsetForUrlBar()
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{
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const char *charset = GetFileSystemCharset();
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#ifdef XP_MAC
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// check for "x-mac-" prefix
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if ((strlen(charset) >= 6) && charset[0] == 'x' && charset[2] == 'm')
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{
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if (!strcmp("x-mac-roman", charset))
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return "ISO-8859-1";
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// we can do more x-mac-xxxx mapping here
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// or somewhere in intl code like nsIPlatformCharset.
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}
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#endif
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return charset;
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}
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nsresult nsDefaultURIFixup::ConvertStringURIToFileCharset(nsString& aIn,
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nsCString& aOut)
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{
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aOut = "";
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// We probably should cache ccm here.
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// get a charset converter from the manager
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nsCOMPtr<nsICharsetConverterManager> ccm(do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID));
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NS_ENSURE_TRUE(ccm, NS_ERROR_FAILURE);
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// for file url, we need to convert the nsString to the file system
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// charset before we pass to NS_NewURI
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NS_ConvertASCIItoUCS2 fsCharset(GetFileSystemCharset());
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nsCOMPtr<nsIUnicodeEncoder> fsEncoder;
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NS_ENSURE_SUCCESS(ccm->GetUnicodeEncoder(&fsCharset,
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getter_AddRefs(fsEncoder)), NS_ERROR_FAILURE);
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PRInt32 bufLen = 0;
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NS_ENSURE_SUCCESS(fsEncoder->GetMaxLength(aIn.get(), aIn.Length(),
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&bufLen), NS_ERROR_FAILURE);
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aOut.SetCapacity(bufLen+1);
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PRInt32 srclen = aIn.Length();
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NS_ENSURE_SUCCESS(fsEncoder->Convert(aIn.get(), &srclen,
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(char*)aOut.get(), &bufLen), NS_ERROR_FAILURE);
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((char*)aOut.get())[bufLen]='\0';
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aOut.SetLength(bufLen);
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return NS_OK;
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}
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nsresult nsDefaultURIFixup::KeywordURIFixup(const PRUnichar* aStringURI,
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nsIURI** aURI)
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{
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// These are keyword formatted strings
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// "what is mozilla"
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// "what is mozilla?"
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// "?mozilla"
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// "?What is mozilla"
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// These are not keyword formatted strings
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// "www.blah.com" - anything with a dot in it
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// "nonQualifiedHost:80" - anything with a colon in it
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// "nonQualifiedHost?"
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// "nonQualifiedHost?args"
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// "nonQualifiedHost?some args"
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nsAutoString uriString(aStringURI);
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if(uriString.FindChar('.') == -1 && uriString.FindChar(':') == -1)
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{
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PRInt32 qMarkLoc = uriString.FindChar('?');
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PRInt32 spaceLoc = uriString.FindChar(' ');
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PRBool keyword = PR_FALSE;
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|
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(uriString);
|
|
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);
|
|
}
|
|
|