From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- netwerk/base/nsIChannelEventSink.idl | 104 +++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 netwerk/base/nsIChannelEventSink.idl (limited to 'netwerk/base/nsIChannelEventSink.idl') diff --git a/netwerk/base/nsIChannelEventSink.idl b/netwerk/base/nsIChannelEventSink.idl new file mode 100644 index 0000000000..1f77cfb466 --- /dev/null +++ b/netwerk/base/nsIChannelEventSink.idl @@ -0,0 +1,104 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* vim:set ts=4 sw=4 sts=4 cin: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsISupports.idl" + +interface nsIChannel; +interface nsIAsyncVerifyRedirectCallback; + +/** + * Implement this interface to receive control over various channel events. + * Channels will try to get this interface from a channel's + * notificationCallbacks or, if not available there, from the loadGroup's + * notificationCallbacks. + * + * These methods are called before onStartRequest. + */ +[scriptable, uuid(0197720d-37ed-4e75-8956-d0d296e4d8a6)] +interface nsIChannelEventSink : nsISupports +{ + /** + * This is a temporary redirect. New requests for this resource should + * continue to use the URI of the old channel. + * + * The new URI may be identical to the old one. + */ + const unsigned long REDIRECT_TEMPORARY = 1 << 0; + + /** + * This is a permanent redirect. New requests for this resource should use + * the URI of the new channel (This might be an HTTP 301 reponse). + * If this flag is not set, this is a temporary redirect. + * + * The new URI may be identical to the old one. + */ + const unsigned long REDIRECT_PERMANENT = 1 << 1; + + /** + * This is an internal redirect, i.e. it was not initiated by the remote + * server, but is specific to the channel implementation. + * + * The new URI may be identical to the old one. + */ + const unsigned long REDIRECT_INTERNAL = 1 << 2; + + /** + * This is a special-cased redirect coming from hitting HSTS upgrade + * redirect from http to https only. In some cases this type of redirect + * may be considered as safe despite not being the-same-origin redirect. + */ + const unsigned long REDIRECT_STS_UPGRADE = 1 << 3; + + /** + * Called when a redirect occurs. This may happen due to an HTTP 3xx status + * code. The purpose of this method is to notify the sink that a redirect + * is about to happen, but also to give the sink the right to veto the + * redirect by throwing or passing a failure-code in the callback. + * + * Note that vetoing the redirect simply means that |newChannel| will not + * be opened. It is important to understand that |oldChannel| will continue + * loading as if it received a HTTP 200, which includes notifying observers + * and possibly display or process content attached to the HTTP response. + * If the sink wants to prevent this loading it must explicitly deal with + * it, e.g. by calling |oldChannel->Cancel()| + * + * There is a certain freedom in implementing this method: + * + * If the return-value indicates success, a callback on |callback| is + * required. This callback can be done from within asyncOnChannelRedirect + * (effectively making the call synchronous) or at some point later + * (making the call asynchronous). Repeat: A callback must be done + * if this method returns successfully. + * + * If the return value indicates error (method throws an exception) + * the redirect is vetoed and no callback must be done. Repeat: No + * callback must be done if this method throws! + * + * NOTE: originalURI isn't yet set on the new channel when + * asyncOnChannelRedirect is called. + * + * @see nsIAsyncVerifyRedirectCallback::onRedirectVerifyCallback() + * + * @param oldChannel + * The channel that's being redirected. + * @param newChannel + * The new channel. This channel is not opened yet. + * @param flags + * Flags indicating the type of redirect. A bitmask consisting + * of flags from above. + * One of REDIRECT_TEMPORARY and REDIRECT_PERMANENT will always be + * set. + * @param callback + * Object to inform about the async result of this method + * + * @throw Throwing an exception will cause the redirect to be + * cancelled + */ + void asyncOnChannelRedirect(in nsIChannel oldChannel, + in nsIChannel newChannel, + in unsigned long flags, + in nsIAsyncVerifyRedirectCallback callback); +}; -- cgit v1.2.3