pjs/docshell/base/nsDefaultURIFixup.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Contributor(s):
* Adam Lock <adamlock@netscape.com>
*/
#include "nsString.h"
#include "nsNetUtil.h"
#include "nsEscape.h"
#include "nsICharsetConverterManager.h"
#include "nsIPlatformCharset.h"
#include "nsIURIFixup.h"
#include "nsDefaultURIFixup.h"
static NS_DEFINE_CID(kPlatformCharsetCID, NS_PLATFORMCHARSET_CID);
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
/* Implementation file */
NS_IMPL_ISUPPORTS1(nsDefaultURIFixup, nsIURIFixup)
nsDefaultURIFixup::nsDefaultURIFixup()
{
NS_INIT_ISUPPORTS();
/* member initializers and constructor code */
}
nsDefaultURIFixup::~nsDefaultURIFixup()
{
/* destructor code */
}
/* nsIURI createFixupURI (in string aURIText); */
NS_IMETHODIMP nsDefaultURIFixup::CreateFixupURI(const PRUnichar *aStringURI, nsIURI **aURI)
{
*aURI = nsnull;
// Try and get the prefs service
if (!mPrefs)
{
mPrefs = do_GetService(NS_PREF_CONTRACTID);
}
nsAutoString uriString(aStringURI);
uriString.Trim(" "); // Cleanup the empty spaces that might be on each end.
// Eliminate embedded newlines, which single-line text fields now allow:
uriString.StripChars("\r\n");
// Just try to create an URL out of it
NS_NewURI(aURI, uriString, nsnull);
if(*aURI)
return NS_OK;
// Check for if it is a file URL
FileURIFixup(uriString.GetUnicode(), aURI);
if(*aURI)
return NS_OK;
// See if it is a keyword
// Test whether keywords need to be fixed up
PRBool fixupKeywords = PR_FALSE;
if (mPrefs)
{
NS_ENSURE_SUCCESS(mPrefs->GetBoolPref("keyword.enabled", &fixupKeywords), NS_ERROR_FAILURE);
}
if (fixupKeywords)
{
KeywordURIFixup(uriString.GetUnicode(), aURI);
if(*aURI)
return NS_OK;
}
// See if a protocol needs to be added
PRInt32 checkprotocol = uriString.Find("://",0);
// if no scheme (protocol) is found, assume http or ftp.
if (checkprotocol == -1) {
// find host name
PRInt32 hostPos = uriString.FindCharInSet("./:");
if (hostPos == -1)
hostPos = uriString.Length();
// extract host name
nsAutoString hostSpec;
uriString.Left(hostSpec, hostPos);
// insert url spec corresponding to host name
if (hostSpec.EqualsIgnoreCase("ftp"))
uriString.InsertWithConversion("ftp://", 0, 6);
else
uriString.InsertWithConversion("http://", 0, 7);
} // end if checkprotocol
return NS_NewURI(aURI, uriString, nsnull);
}
NS_IMETHODIMP nsDefaultURIFixup::FileURIFixup(const PRUnichar* aStringURI,
nsIURI** aURI)
{
nsAutoString uriSpecIn(aStringURI);
nsAutoString uriSpecOut(aStringURI);
ConvertFileToStringURI(uriSpecIn, uriSpecOut);
if(0 == uriSpecOut.Find("file:", 0))
{
// if this is file url, we need to convert the URI
// from Unicode to the FS charset
nsCAutoString inFSCharset;
NS_ENSURE_SUCCESS(ConvertStringURIToFileCharset(uriSpecOut, inFSCharset),
NS_ERROR_FAILURE);
if(NS_SUCCEEDED(NS_NewURI(aURI, inFSCharset.GetBuffer(), nsnull)))
return NS_OK;
}
return NS_ERROR_FAILURE;
}
#define FILE_PROTOCOL "file://"
NS_IMETHODIMP nsDefaultURIFixup::ConvertFileToStringURI(nsString& aIn, nsString& aOut)
{
#ifdef XP_PC
// Check for \ in the url-string or just a drive (PC)
if(kNotFound != aIn.FindChar(PRUnichar('\\')) || ((aIn.Length() == 2 ) && (aIn.Last() == PRUnichar(':') || aIn.Last() == PRUnichar('|'))))
{
#elif XP_UNIX
// Check if it starts with / or \ (UNIX)
const PRUnichar * up = aIn.GetUnicode();
if((PRUnichar('/') == *up) || (PRUnichar('\\') == *up))
{
#else
if(0)
{
// Do nothing (All others for now)
#endif
#ifdef XP_PC
// Translate '\' to '/'
aOut.ReplaceChar(PRUnichar('\\'), PRUnichar('/'));
aOut.ReplaceChar(PRUnichar(':'), PRUnichar('|'));
#endif
// Build the file URL
aOut.InsertWithConversion(FILE_PROTOCOL,0);
}
return NS_OK;
}
NS_IMETHODIMP nsDefaultURIFixup::ConvertStringURIToFileCharset(nsString& aIn,
nsCString& aOut)
{
aOut = "";
// for file url, we need to convert the nsString to the file system
// charset before we pass to NS_NewURI
static nsAutoString fsCharset;
// find out the file system charset first
if(0 == fsCharset.Length())
{
fsCharset.AssignWithConversion("ISO-8859-1"); // set the fallback first.
nsCOMPtr<nsIPlatformCharset> plat(do_GetService(kPlatformCharsetCID));
NS_ENSURE_TRUE(plat, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(plat->GetCharset(kPlatformCharsetSel_FileName, fsCharset),
NS_ERROR_FAILURE);
}
// We probably should cache ccm here.
// get a charset converter from the manager
nsCOMPtr<nsICharsetConverterManager> ccm(do_GetService(kCharsetConverterManagerCID));
NS_ENSURE_TRUE(ccm, NS_ERROR_FAILURE);
nsCOMPtr<nsIUnicodeEncoder> fsEncoder;
NS_ENSURE_SUCCESS(ccm->GetUnicodeEncoder(&fsCharset,
getter_AddRefs(fsEncoder)), NS_ERROR_FAILURE);
PRInt32 bufLen = 0;
NS_ENSURE_SUCCESS(fsEncoder->GetMaxLength(aIn.GetUnicode(), aIn.Length(),
&bufLen), NS_ERROR_FAILURE);
aOut.SetCapacity(bufLen+1);
PRInt32 srclen = aIn.Length();
NS_ENSURE_SUCCESS(fsEncoder->Convert(aIn.GetUnicode(), &srclen,
(char*)aOut.GetBuffer(), &bufLen), NS_ERROR_FAILURE);
((char*)aOut.GetBuffer())[bufLen]='\0';
aOut.SetLength(bufLen);
return NS_OK;
}
NS_IMETHODIMP nsDefaultURIFixup::KeywordURIFixup(const PRUnichar* aStringURI,
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"
nsAutoString uriString(aStringURI);
if(uriString.FindChar('.') == -1 && uriString.FindChar(':') == -1)
{
PRInt32 qMarkLoc = uriString.FindChar('?');
PRInt32 spaceLoc = uriString.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 = uriString.ToNewUTF8String();
if(utf8Spec)
{
char* escapedUTF8Spec = nsEscape(utf8Spec, url_Path);
if(escapedUTF8Spec)
{
keywordSpec.Append(escapedUTF8Spec);
NS_NewURI(aURI, keywordSpec.GetBuffer(), 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);
}