2001-09-29 00:14:13 +04:00
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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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2004-07-02 03:31:47 +04:00
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/* vim:set ts=4 sw=4 sts=4 et: */
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2001-09-29 00:14:13 +04:00
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/* ***** BEGIN LICENSE BLOCK *****
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2004-04-19 02:01:16 +04:00
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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2000-02-14 13:04:56 +03:00
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*
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2004-04-19 02:01:16 +04:00
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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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2000-02-14 13:04:56 +03:00
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*
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2001-09-29 00:14:13 +04:00
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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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2000-02-14 13:04:56 +03:00
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*
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* The Original Code is mozilla.org code.
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*
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2004-04-19 02:01:16 +04:00
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* The Initial Developer of the Original Code is
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2001-09-29 00:14:13 +04:00
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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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2000-02-14 13:04:56 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* Contributor(s):
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2004-07-02 03:31:47 +04:00
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* Darin Fisher <darin@meer.net>
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2001-09-29 00:14:13 +04:00
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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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2004-04-19 02:01:16 +04:00
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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2001-09-29 00:14:13 +04:00
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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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2001-09-29 00:14:13 +04:00
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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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2004-04-19 02:01:16 +04:00
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* the terms of any one of the MPL, the GPL or the LGPL.
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2001-09-29 00:14:13 +04:00
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*
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* ***** END LICENSE BLOCK ***** */
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2000-02-14 13:04:56 +03:00
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#include "nsISupports.idl"
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interface nsICancelable;
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interface nsIProtocolProxyCallback;
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interface nsIProtocolProxyFilter;
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interface nsIProxyInfo;
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interface nsIChannel;
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interface nsIURI;
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/**
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* nsIProtocolProxyService provides methods to access information about
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* various network proxies.
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*/
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[scriptable, uuid(d7ec6237-162e-40f5-a2b4-46ccd5fa83c9)]
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interface nsIProtocolProxyService : nsISupports
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{
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/**
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* This flag may be passed to the resolve method to request that it fail
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* instead of block the calling thread. Proxy Auto Config (PAC) may
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* perform a synchronous DNS query, which may not return immediately. So,
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* calling resolve without this flag may result in locking up the calling
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* thread for a lengthy period of time.
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*
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* By passing this flag to resolve, one can failover to asyncResolve to
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* avoid locking up the calling thread if a PAC query is required.
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*
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* When this flag is passed to resolve, resolve may throw the exception
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* NS_BASE_STREAM_WOULD_BLOCK to indicate that it failed due to this flag
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* being present.
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*/
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const unsigned long RESOLVE_NON_BLOCKING = 1 << 0;
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2010-06-17 22:33:42 +04:00
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/**
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* When the proxy configuration is manual this flag may be passed to the
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* resolve and asyncResolve methods to request to prefer the SOCKS proxy
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* to HTTP ones.
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*/
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const unsigned long RESOLVE_PREFER_SOCKS_PROXY = 1 << 1;
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/**
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* When the proxy configuration is manual this flag may be passed to the
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* resolve and asyncResolve methods to request to not analyze the uri's
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* scheme specific proxy. When this flag is set the main HTTP proxy is the
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* preferred one.
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*
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* NOTE: if RESOLVE_PREFER_SOCKS_PROXY is set then the SOCKS proxy is
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* the preferred one.
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*
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* NOTE: if RESOLVE_PREFER_HTTPS_PROXY is set then the HTTPS proxy
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* is the preferred one.
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*/
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const unsigned long RESOLVE_IGNORE_URI_SCHEME = 1 << 2;
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/**
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* When the proxy configuration is manual this flag may be passed to the
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* resolve and asyncResolve methods to request to prefer the HTTPS proxy
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* to the others HTTP ones.
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*
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* NOTE: RESOLVE_PREFER_SOCKS_PROXY takes precedence over this flag.
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*
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* NOTE: This flag implies RESOLVE_IGNORE_URI_SCHEME.
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*/
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const unsigned long RESOLVE_PREFER_HTTPS_PROXY =
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(1 << 3) | RESOLVE_IGNORE_URI_SCHEME;
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2011-05-13 21:53:27 +04:00
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/**
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* When the proxy configuration is manual this flag may be passed to the
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* resolve and asyncResolve methods to that all methods will be tunneled via
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* CONNECT through the http proxy.
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*/
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const unsigned long RESOLVE_ALWAYS_TUNNEL = (1 << 4);
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/**
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* This method returns a nsIProxyInfo instance that identifies a proxy to
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* be used for loading the given URI. Otherwise, this method returns null
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* indicating that a direct connection should be used.
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*
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* @param aURI
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* The URI to test.
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* @param aFlags
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* A bit-wise combination of the RESOLVE_ flags defined above. Pass
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* 0 to specify the default behavior. Any additional bits that do
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* not correspond to a RESOLVE_ flag are reserved for future use.
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*
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* NOTE: If this proxy is unavailable, getFailoverForProxy may be called
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* to determine the correct secondary proxy to be used.
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*
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* NOTE: If the protocol handler for the given URI supports
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* nsIProxiedProtocolHandler, then the nsIProxyInfo instance returned from
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* resolve may be passed to the newProxiedChannel method to create a
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* nsIChannel to the given URI that uses the specified proxy.
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*
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* NOTE: However, if the nsIProxyInfo type is "http", then it means that
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* the given URI should be loaded using the HTTP protocol handler, which
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* also supports nsIProxiedProtocolHandler.
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*
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* NOTE: If PAC is configured, and the PAC file has not yet been loaded,
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* then this method will return a nsIProxyInfo instance with a type of
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* "unknown" to indicate to the consumer that asyncResolve should be used
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* to wait for the PAC file to finish loading. Otherwise, the consumer
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* may choose to treat the result as type "direct" if desired.
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*
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* @see nsIProxiedProtocolHandler::newProxiedChannel
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*/
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nsIProxyInfo resolve(in nsIURI aURI, in unsigned long aFlags);
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/**
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* This method is an asychronous version of the resolve method. Unlike
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* resolve, this method is guaranteed not to block the calling thread
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* waiting for DNS queries to complete. This method is intended as a
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* substitute for resolve when the result is not needed immediately.
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*
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* @param aURI
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* The URI to test.
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* @param aFlags
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* A bit-wise combination of the RESOLVE_ flags defined above. Pass
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* 0 to specify the default behavior. Any additional bits that do
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* not correspond to a RESOLVE_ flag are reserved for future use.
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* @param aCallback
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* The object to be notified when the result is available.
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*
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* @return An object that can be used to cancel the asychronous operation.
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* If canceled, the cancelation status (aReason) will be forwarded
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* to the callback's onProxyAvailable method via the aStatus param.
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*/
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nsICancelable asyncResolve(in nsIURI aURI, in unsigned long aFlags,
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in nsIProtocolProxyCallback aCallback);
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2004-07-02 03:31:47 +04:00
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/**
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* This method may be called to construct a nsIProxyInfo instance from
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* the given parameters. This method may be useful in conjunction with
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* nsISocketTransportService::createTransport for creating, for example,
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* a SOCKS connection.
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*
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* @param aType
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* The proxy type. This is a string value that identifies the proxy
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* type. Standard values include:
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* "http" - specifies a HTTP proxy
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* "socks" - specifies a SOCKS version 5 proxy
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* "socks4" - specifies a SOCKS version 4 proxy
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* "direct" - specifies a direct connection (useful for failover)
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* The type name is case-insensitive. Other string values may be
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* possible, and new types may be defined by a future version of
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* this interface.
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* @param aHost
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* The proxy hostname or IP address.
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* @param aPort
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* The proxy port.
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* @param aFlags
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* Flags associated with this connection. See nsIProxyInfo.idl
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* for currently defined flags.
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* @param aFailoverTimeout
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* Specifies the length of time (in seconds) to ignore this proxy if
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* this proxy fails. Pass PR_UINT32_MAX to specify the default
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* timeout value, causing nsIProxyInfo::failoverTimeout to be
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* assigned the default value.
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* @param aFailoverProxy
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* Specifies the next proxy to try if this proxy fails. This
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* parameter may be null.
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*/
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nsIProxyInfo newProxyInfo(in ACString aType, in AUTF8String aHost,
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in long aPort, in unsigned long aFlags,
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in unsigned long aFailoverTimeout,
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in nsIProxyInfo aFailoverProxy);
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/**
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* If the proxy identified by aProxyInfo is unavailable for some reason,
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* this method may be called to access an alternate proxy that may be used
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* instead. As a side-effect, this method may affect future result values
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* from resolve/asyncResolve as well as from getFailoverForProxy.
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*
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* @param aProxyInfo
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* The proxy that was unavailable.
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* @param aURI
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* The URI that was originally passed to resolve/asyncResolve.
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* @param aReason
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* The error code corresponding to the proxy failure. This value
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* may be used to tune the delay before this proxy is used again.
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*
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* @throw NS_ERROR_NOT_AVAILABLE if there is no alternate proxy available.
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*/
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nsIProxyInfo getFailoverForProxy(in nsIProxyInfo aProxyInfo,
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in nsIURI aURI,
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in nsresult aReason);
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/**
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* This method may be used to register a proxy filter instance. Each proxy
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* filter is registered with an associated position that determines the
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* order in which the filters are applied (starting from position 0). When
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* resolve/asyncResolve is called, it generates a list of proxies for the
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* given URI, and then it applies the proxy filters. The filters have the
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* opportunity to modify the list of proxies.
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*
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* If two filters register for the same position, then the filters will be
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* visited in the order in which they were registered.
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*
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* If the filter is already registered, then its position will be updated.
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*
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* After filters have been run, any disabled or disallowed proxies will be
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* removed from the list. A proxy is disabled if it had previously failed-
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* over to another proxy (see getFailoverForProxy). A proxy is disallowed,
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* for example, if it is a HTTP proxy and the nsIProtocolHandler for the
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* queried URI does not permit proxying via HTTP.
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*
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* If a nsIProtocolHandler disallows all proxying, then filters will never
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* have a chance to intercept proxy requests for such URLs.
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*
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* @param aFilter
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* The nsIProtocolProxyFilter instance to be registered.
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* @param aPosition
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* The position of the filter.
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*
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* NOTE: It is possible to construct filters that compete with one another
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* in undesirable ways. This API does not attempt to protect against such
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* problems. It is recommended that any extensions that choose to call
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* this method make their position value configurable at runtime (perhaps
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* via the preferences service).
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*/
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void registerFilter(in nsIProtocolProxyFilter aFilter,
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in unsigned long aPosition);
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/**
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* This method may be used to unregister a proxy filter instance. All
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* filters will be automatically unregistered at XPCOM shutdown.
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*
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* @param aFilter
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* The nsIProtocolProxyFilter instance to be unregistered.
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*/
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void unregisterFilter(in nsIProtocolProxyFilter aFilter);
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/**
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* These values correspond to the possible integer values for the
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* network.proxy.type preference.
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*/
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const unsigned long PROXYCONFIG_DIRECT = 0;
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const unsigned long PROXYCONFIG_MANUAL = 1;
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const unsigned long PROXYCONFIG_PAC = 2;
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const unsigned long PROXYCONFIG_WPAD = 4;
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const unsigned long PROXYCONFIG_SYSTEM = 5;
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/**
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* This attribute specifies the current type of proxy configuration.
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*/
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readonly attribute unsigned long proxyConfigType;
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};
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