pjs/nunet/public/nsIURI.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef _nsIURI_h_
#define _nsIURI_h_
#include "nsISupports.h"
/*
The nsIURI class is an interface to the URI behaviour for parsing
portions out of a URI. This follows Tim Berners-Lee's URI spec at-
http://www.w3.org/Addressing/URI/URI_Overview.html
For the purpose of this class, here is the most elaborate form of a URI
and its corresponding parts-
ftp://username:password@hostname:portnumber/pathname
\ / \ / \ / \ /\ /
- --------------- ------ -------- -------
| | | | |
| | | | Path
| | | Port
| | Host
| PreHost
Scheme
Note that this class does not assume knowledge of search/query portions
embedded within the path portion of the URI.
This class pretty much "final" and there shouldn't be anything added.
If you do feel something belongs here, please do send me a mail. Thanks!
-Gagan Saksena 03/15/99
*/
class nsIURI : public nsISupports
{
public:
//Core parsing functions
/*
The Scheme is the protocol that this URI refers to.
*/
NS_IMETHOD GetScheme(const char* *o_Scheme) const = 0;
NS_IMETHOD SetScheme(const char* i_Scheme) = 0;
/*
The PreHost portion includes elements like the optional
username:password, or maybe other scheme specific items.
*/
NS_IMETHOD GetPreHost(const char* *o_PreHost) const = 0;
NS_IMETHOD SetPreHost(const char* i_PreHost) = 0;
/*
The Host is the internet domain name to which this URI refers.
Note that it could be an IP address as well.
*/
NS_IMETHOD GetHost(const char* *o_Host) const = 0;
NS_IMETHOD SetHost(const char* i_Host) = 0;
/*
A return value of -1 indicates that no port value is set and the
implementor of the specific scheme will use its default port.
Similarly setting a value of -1 indicates that the default is to be used.
Thus as an example-
for HTTP, Port 80 is same as a return value of -1.
However after setting a port (even if its default), the port number will
appear in the ToString function.
*/
NS_IMETHOD_(PRInt32)
GetPort(void) const = 0;
NS_IMETHOD SetPort(PRInt32 i_Port) = 0;
/*
Note that the path includes the leading '/' Thus if no path is
available the GetPath will return a "/"
For SetPath if none is provided, one would be prefixed to the path.
*/
NS_IMETHOD GetPath(const char* *o_Path) const = 0;
NS_IMETHOD SetPath(const char* i_Path) = 0;
//Other utility functions
/*
Note that this comparison is only on char* level. Use
the scheme specific URI to do a more thorough check. For example--
in HTTP-
http://foo.com:80 == http://foo.com
but this function through nsIURI alone will not return equality
for this case.
*/
NS_IMETHOD_(PRBool) Equals(const nsIURI* i_URI) const = 0;
/*
Writes a string representation of the URI.
*/
NS_IMETHOD ToString(const char* *o_URIString) const = 0;
static const nsIID& GetIID() {
// {EF4B5380-C07A-11d2-A1BA-00609794CF59}
static const nsIID NS_IURI_IID =
{ 0xef4b5380, 0xc07a, 0x11d2, { 0xa1, 0xba, 0x0, 0x60, 0x97, 0x94, 0xcf, 0x59 } };
return NS_IURI_IID;
};
};
#endif /* _nsIURI_h_ */