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170 строки
6.5 KiB
Plaintext
170 строки
6.5 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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interface nsIProtocolHandler;
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interface nsIChannel;
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interface nsIURI;
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interface nsIFile;
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/**
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* nsIIOService provides a set of network utility functions. This interface
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* duplicates many of the nsIProtocolHandler methods in a protocol handler
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* independent way (e.g., NewURI inspects the scheme in order to delegate
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* creation of the new URI to the appropriate protocol handler). nsIIOService
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* also provides a set of URL parsing utility functions. These are provided
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* as a convenience to the programmer and in some cases to improve performance
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* by eliminating intermediate data structures and interfaces.
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*
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* @status FROZEN
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*/
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[scriptable, uuid(bddeda3f-9020-4d12-8c70-984ee9f7935e)]
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interface nsIIOService : nsISupports
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{
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/**
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* Returns a protocol handler for a given URI scheme.
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*
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* @param aScheme the URI scheme
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* @return reference to corresponding nsIProtocolHandler
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*/
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nsIProtocolHandler getProtocolHandler(in string aScheme);
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/**
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* Returns the protocol flags for a given scheme.
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*
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* @param aScheme the URI scheme
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* @return value of corresponding nsIProtocolHandler::protocolFlags
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*/
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unsigned long getProtocolFlags(in string aScheme);
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/**
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* This method constructs a new URI by determining the scheme of the
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* URI spec, and then delegating the construction of the URI to the
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* protocol handler for that scheme. QueryInterface can be used on
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* the resulting URI object to obtain a more specific type of URI.
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*
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* @see nsIProtocolHandler::newURI
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*/
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nsIURI newURI(in AUTF8String aSpec,
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in string aOriginCharset,
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in nsIURI aBaseURI);
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/**
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* This method constructs a new URI from a nsIFile.
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*
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* @param aFile specifies the file path
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* @return reference to a new nsIURI object
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*/
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nsIURI newFileURI(in nsIFile aFile);
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/**
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* Creates a channel for a given URI.
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*
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* @param aURI nsIURI from which to make a channel
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* @return reference to the new nsIChannel object
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*/
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nsIChannel newChannelFromURI(in nsIURI aURI);
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/**
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* Equivalent to newChannelFromURI(newURI(...))
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*/
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nsIChannel newChannel(in AUTF8String aSpec,
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in string aOriginCharset,
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in nsIURI aBaseURI);
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/**
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* Returns true if networking is in "offline" mode. When in offline mode,
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* attempts to access the network will fail (although this does not
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* necessarily correlate with whether there is actually a network
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* available -- that's hard to detect without causing the dialer to
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* come up).
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*
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* Changing this fires observer notifications ... see below.
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*/
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attribute boolean offline;
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/**
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* Checks if a port number is banned. This involves consulting a list of
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* unsafe ports, corresponding to network services that may be easily
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* exploitable. If the given port is considered unsafe, then the protocol
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* handler (corresponding to aScheme) will be asked whether it wishes to
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* override the IO service's decision to block the port. This gives the
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* protocol handler ultimate control over its own security policy while
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* ensuring reasonable, default protection.
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*
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* @see nsIProtocolHandler::allowPort
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*/
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boolean allowPort(in long aPort, in string aScheme);
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/**
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* Utility to extract the scheme from a URL string, consistently and
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* according to spec (see RFC 2396).
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*
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* NOTE: Most URL parsing is done via nsIURI, and in fact the scheme
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* can also be extracted from a URL string via nsIURI. This method
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* is provided purely as an optimization.
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*
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* @param aSpec the URL string to parse
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* @return URL scheme
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*
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* @throws NS_ERROR_MALFORMED_URI if URL string is not of the right form.
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*/
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ACString extractScheme(in AUTF8String urlString);
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};
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%{C++
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/**
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* We send notifications through nsIObserverService with topic
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* NS_IOSERVICE_GOING_OFFLINE_TOPIC and data NS_IOSERVICE_OFFLINE
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* when 'offline' has changed from false to true, and we are about
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* to shut down network services such as DNS. When those
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* services have been shut down, we send a notification with
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* topic NS_IOSERVICE_OFFLINE_STATUS_TOPIC and data
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* NS_IOSERVICE_OFFLINE.
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*
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* When 'offline' changes from true to false, then after
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* network services have been restarted, we send a notification
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* with topic NS_IOSERVICE_OFFLINE_STATUS_TOPIC and data
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* NS_IOSERVICE_ONLINE.
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*/
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#define NS_IOSERVICE_GOING_OFFLINE_TOPIC "network:offline-about-to-go-offline"
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#define NS_IOSERVICE_OFFLINE_STATUS_TOPIC "network:offline-status-changed"
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#define NS_IOSERVICE_OFFLINE "offline"
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#define NS_IOSERVICE_ONLINE "online"
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%}
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