зеркало из https://github.com/mozilla/gecko-dev.git
297 строки
9.0 KiB
C++
297 строки
9.0 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 "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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static NS_DEFINE_CID(kPlatformCharsetCID, NS_PLATFORMCHARSET_CID);
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static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
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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 string aURIText); */
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NS_IMETHODIMP nsDefaultURIFixup::CreateFixupURI(const PRUnichar *aStringURI, nsIURI **aURI)
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{
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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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// Check for if it is a file URL
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FileURIFixup(uriString.GetUnicode(), 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 '/' except for JS
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if (!uriString.EqualsIgnoreCase("javascript:", 11))
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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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// Just try to create an URL out of it
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NS_NewURI(aURI, uriString, nsnull);
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if(*aURI)
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return NS_OK;
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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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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.GetUnicode(), aURI);
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if(*aURI)
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return NS_OK;
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}
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// See if a protocol needs to be added
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PRInt32 checkprotocol = uriString.Find("://",0);
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// if no scheme (protocol) is found, assume http or ftp.
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if (checkprotocol == -1) {
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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"))
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uriString.InsertWithConversion("ftp://", 0, 6);
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else
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uriString.InsertWithConversion("http://", 0, 7);
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} // end if checkprotocol
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return NS_NewURI(aURI, uriString, nsnull);
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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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nsAutoString uriSpecOut(aStringURI);
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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, we need to convert the URI
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// from Unicode to the FS charset
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nsCAutoString inFSCharset;
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NS_ENSURE_SUCCESS(ConvertStringURIToFileCharset(uriSpecOut, inFSCharset),
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NS_ERROR_FAILURE);
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if(NS_SUCCEEDED(NS_NewURI(aURI, inFSCharset.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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nsString& 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.GetUnicode();
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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; file.AssignWithConversion(aIn);
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nsresult rv = NS_NewLocalFile(file, PR_FALSE, getter_AddRefs(filePath));
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if (NS_SUCCEEDED(rv))
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{
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nsXPIDLCString fileurl;
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filePath->GetURL(getter_Copies(fileurl));
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aOut.AssignWithConversion(fileurl);
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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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nsresult nsDefaultURIFixup::ConvertStringURIToFileCharset(nsString& aIn,
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nsCString& aOut)
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{
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aOut = "";
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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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static nsAutoString fsCharset;
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// find out the file system charset first
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if(0 == fsCharset.Length())
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{
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fsCharset.AssignWithConversion("ISO-8859-1"); // set the fallback first.
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nsCOMPtr<nsIPlatformCharset> plat(do_GetService(kPlatformCharsetCID));
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NS_ENSURE_TRUE(plat, NS_ERROR_FAILURE);
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NS_ENSURE_SUCCESS(plat->GetCharset(kPlatformCharsetSel_FileName, fsCharset),
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NS_ERROR_FAILURE);
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}
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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(kCharsetConverterManagerCID));
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NS_ENSURE_TRUE(ccm, NS_ERROR_FAILURE);
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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.GetUnicode(), 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.GetUnicode(), &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)
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keyword = PR_TRUE;
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else if((spaceLoc > 0) && ((qMarkLoc == -1) || (spaceLoc < qMarkLoc)))
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keyword = PR_TRUE;
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if(keyword)
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{
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nsCAutoString keywordSpec("keyword:");
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char *utf8Spec = uriString.ToNewUTF8String();
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if(utf8Spec)
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{
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char* escapedUTF8Spec = nsEscape(utf8Spec, url_Path);
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if(escapedUTF8Spec)
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{
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keywordSpec.Append(escapedUTF8Spec);
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NS_NewURI(aURI, keywordSpec.get(), nsnull);
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nsMemory::Free(escapedUTF8Spec);
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} // escapedUTF8Spec
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nsMemory::Free(utf8Spec);
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} // utf8Spec
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} // keyword
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} // FindChar
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if(*aURI)
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return NS_OK;
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return NS_ERROR_FAILURE;
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}
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nsresult NS_NewURIFixup(nsIURIFixup **aURIFixup)
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{
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nsDefaultURIFixup *fixup = new nsDefaultURIFixup;
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if (fixup == nsnull)
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{
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return fixup->QueryInterface(NS_GET_IID(nsIURIFixup), (void **) aURIFixup);
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}
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