gecko-dev/netwerk/base/public/nsIIOService.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
interface nsIProtocolHandler;
interface nsIChannel;
interface nsIURI;
interface nsIURLParser;
interface nsIFile;
%{C++
#include "nsAString.h"
%}
[scriptable, uuid(ab7c3a84-d488-11d3-8cda-0060b0fc14a3)]
interface nsIIOService : nsISupports
{
/**
* Returns a protocol handler for a given URI scheme.
*
* @param scheme URI scheme
* @return reference to nsIProtcolHandler
*/
nsIProtocolHandler getProtocolHandler(in string scheme);
/**
* Returns the protocol flags for a given scheme.
*
* @param scheme URI scheme
* @return returns unsigned long for protocol flags
*/
unsigned long getProtocolFlags(in string scheme);
/**
* This method constructs a new URI by first determining the scheme
* of the URI spec, and then delegating the construction of the URI
* to the protocol handler for that scheme. QueryInterface can be used
* on the resulting URI object to obtain a more specific type of URI.
* @see nsIProtocolHandler::newURI
*/
nsIURI newURI(in AUTF8String aSpec,
in string aOriginCharset,
in nsIURI aBaseURI);
/**
* This method constructs a new file URI
*
* @param aFile nsIFile from which to make an URI from
* @return reference to a new nsIURI object
*/
nsIURI newFileURI(in nsIFile aFile);
/**
* Creates a channel for a given URI. The notificationCallbacks argument
* is used to obtain the appropriate callbacks for the URI's protocol
* from the application.
*
* @param originalURI - Specifies the original URI which caused the
* creation of this channel. This can occur when the construction of
* one channel (e.g. for resource:) causes another channel to be created
* on its behalf (e.g. a file: channel), or if a redirect occurs,
* causing the current URL to become different from the original URL.
* If NULL, the aURI parameter will be used as the originalURI instead.
*
* @param aURI nsIURI to make a channel from
* @return a reference to the new nsIChannel object
*/
nsIChannel newChannelFromURI(in nsIURI aURI);
/**
* Shortcut equivalent to newChannelFromURI(newURI(...))
*/
nsIChannel newChannel(in AUTF8String aSpec,
in string aOriginCharset,
in nsIURI aBaseURI);
/**
* Returns true if networking is in "offline" mode. When in offline mode,
* attempts to access the network will fail (although this is not
* necessarily corrolated with whether there is actually a network
* available -- that's hard to detect without causing the dialer to
* come up).
*/
attribute boolean offline;
/**
* Checks if a port number is banned.
*
* |allowPort| will check a list of "known-to-do-bad-things"
* port numbers. If the given port is found on the blacklist,
* |allowPort| will ask the protocol handler if it wishes to override.
* Scheme can be null.
*/
boolean allowPort(in long port, in string scheme);
////////////////////////////////////////////////////////////////////////////
// URL parsing utilities
/**
* Utility for protocol implementors -- extracts the scheme from a URL
* string, consistently and according to spec.
*
* @param urlString the URL string to parse
* @return scheme
*
* @throws NS_ERROR_MALFORMED_URI if urlString is not of the right form.
*/
ACString extractScheme(in AUTF8String urlString);
/**
* returns the protocol specific URL parser
*/
nsIURLParser getParserForScheme(in string scheme);
/**
* @param urlString absolute URL path.
* @param flags combination of url_XXX flags.
*
* @throws NS_ERROR_MALFORMED_URI if urlString is not of the right form.
*/
AUTF8String extractUrlPart(in AUTF8String urlString, in short flags);
/**
* Constants for the mask in the call to extractUrlPart
*
* XXX these should really be enumerated in left-to-right order!
*/
const short url_Scheme = (1<<0);
const short url_Username = (1<<1);
const short url_Password = (1<<2);
const short url_Host = (1<<3);
const short url_Directory = (1<<4);
const short url_FileBaseName = (1<<5);
const short url_FileExtension = (1<<6);
const short url_Param = (1<<7);
const short url_Query = (1<<8);
const short url_Ref = (1<<9);
const short url_Path = (1<<10);
const short url_Port = (1<<11);
/**
* Resolves a relative path string containing "." and ".."
* with respect to a base path (assumed to already be resolved).
* For example, resolving "../../foo/./bar/../baz.html" w.r.t.
* "/a/b/c/d/e/" yields "/a/b/c/foo/baz.html". Attempting to
* ascend above the base results in the NS_ERROR_MALFORMED_URI
* exception. If basePath is null, it treats it as "/".
*
* @param relativePath a relative URI
* @param basePath a base URI
*
* @return a new string, representing canonical uri
*/
AUTF8String resolveRelativePath(in AUTF8String relativePath,
in AUTF8String basePath);
/**
* conversions between nsILocalFile and a file url string
*/
/**
* gets a file:// url out of an nsIFile
* @param file the file to extract the path from
* @return a file:// style url string
*/
AUTF8String getURLSpecFromFile(in nsIFile file);
/**
* Sets the native path of the file given the url string
* @param file the file to initialize with the given spec
* @param url the url string which will be used to initialize the file
*/
void initFileFromURLSpec(in nsIFile file, in AUTF8String url);
};