mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-01 00:32:11 +00:00
baa6cd2868
We are working on an alternative approach to improving OnStart/OnStop request timing, and so will remove this probe because it's no longer as relevant and the implementation touchs many classes and methods. Differential Revision: https://phabricator.services.mozilla.com/D187233
333 lines
12 KiB
Plaintext
333 lines
12 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* 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"
|
|
|
|
%{ C++
|
|
#include "nsString.h"
|
|
%}
|
|
|
|
interface nsILoadGroup;
|
|
|
|
typedef unsigned long nsLoadFlags;
|
|
|
|
/**
|
|
* nsIRequest
|
|
*/
|
|
[scriptable, uuid(ef6bfbd2-fd46-48d8-96b7-9f8f0fd387fe)]
|
|
interface nsIRequest : nsISupports
|
|
{
|
|
/**
|
|
* The name of the request. Often this is the URI of the request.
|
|
*/
|
|
readonly attribute AUTF8String name;
|
|
|
|
/**
|
|
* Indicates whether the request is pending. nsIRequest::isPending is
|
|
* true when there is an outstanding asynchronous event that will make
|
|
* the request no longer be pending. Requests do not necessarily start
|
|
* out pending; in some cases, requests have to be explicitly initiated
|
|
* (e.g. nsIChannel implementations are only pending once asyncOpen
|
|
* returns successfully).
|
|
*
|
|
* Requests can become pending multiple times during their lifetime.
|
|
*
|
|
* @return TRUE if the request has yet to reach completion.
|
|
* @return FALSE if the request has reached completion (e.g., after
|
|
* OnStopRequest has fired).
|
|
* @note Suspended requests are still considered pending.
|
|
*/
|
|
boolean isPending();
|
|
|
|
/**
|
|
* The error status associated with the request.
|
|
*/
|
|
readonly attribute nsresult status;
|
|
|
|
/**
|
|
* Cancels the current request. This will close any open input or
|
|
* output streams and terminate any async requests. Users should
|
|
* normally pass NS_BINDING_ABORTED, although other errors may also
|
|
* be passed. The error passed in will become the value of the
|
|
* status attribute.
|
|
*
|
|
* Implementations must not send any notifications (e.g. via
|
|
* nsIRequestObserver) synchronously from this function. Similarly,
|
|
* removal from the load group (if any) must also happen asynchronously.
|
|
*
|
|
* Requests that use nsIStreamListener must not call onDataAvailable
|
|
* anymore after cancel has been called.
|
|
*
|
|
* @param aStatus the reason for canceling this request.
|
|
*
|
|
* NOTE: most nsIRequest implementations expect aStatus to be a
|
|
* failure code; however, some implementations may allow aStatus to
|
|
* be a success code such as NS_OK. In general, aStatus should be
|
|
* a failure code.
|
|
*/
|
|
void cancel(in nsresult aStatus);
|
|
|
|
/**
|
|
* Suspends the current request. This may have the effect of closing
|
|
* any underlying transport (in order to free up resources), although
|
|
* any open streams remain logically opened and will continue delivering
|
|
* data when the transport is resumed.
|
|
*
|
|
* Calling cancel() on a suspended request must not send any
|
|
* notifications (such as onstopRequest) until the request is resumed.
|
|
*
|
|
* NOTE: some implementations are unable to immediately suspend, and
|
|
* may continue to deliver events already posted to an event queue. In
|
|
* general, callers should be capable of handling events even after
|
|
* suspending a request.
|
|
*/
|
|
void suspend();
|
|
|
|
/**
|
|
* Resumes the current request. This may have the effect of re-opening
|
|
* any underlying transport and will resume the delivery of data to
|
|
* any open streams.
|
|
*/
|
|
void resume();
|
|
|
|
/**
|
|
* The load group of this request. While pending, the request is a
|
|
* member of the load group. It is the responsibility of the request
|
|
* to implement this policy.
|
|
*/
|
|
attribute nsILoadGroup loadGroup;
|
|
|
|
/**
|
|
* The load flags of this request. Bits 0-15 are reserved.
|
|
*
|
|
* When added to a load group, this request's load flags are merged with
|
|
* the load flags of the load group.
|
|
*/
|
|
attribute nsLoadFlags loadFlags;
|
|
|
|
/**
|
|
* Mask defining the bits reserved for nsIRequest LoadFlags
|
|
*/
|
|
const unsigned long LOAD_REQUESTMASK = 0xFFFF;
|
|
|
|
/**************************************************************************
|
|
* Listed below are the various load flags which may be or'd together.
|
|
*/
|
|
|
|
/**
|
|
* No special load flags:
|
|
*/
|
|
const unsigned long LOAD_NORMAL = 0;
|
|
|
|
/**
|
|
* Do not deliver status notifications to the nsIProgressEventSink and
|
|
* do not block the loadgroup from completing (should this load belong to one).
|
|
* Note: Progress notifications will still be delivered.
|
|
*/
|
|
const unsigned long LOAD_BACKGROUND = 1 << 0;
|
|
|
|
/**
|
|
* This flag marks the request as being made to load the data for an html
|
|
* <object> tag. This means that the LOAD_DOCUMENT_URI flag may be set after
|
|
* the channel has been provided with the MIME type.
|
|
*/
|
|
const unsigned long LOAD_HTML_OBJECT_DATA = 1 << 1;
|
|
|
|
/**
|
|
* This flag marks the request as belonging to a document that requires access
|
|
* to the document.cookies API.
|
|
*/
|
|
const unsigned long LOAD_DOCUMENT_NEEDS_COOKIE = 1 << 2;
|
|
|
|
cenum TRRMode : 32 {
|
|
TRR_DEFAULT_MODE = 0,
|
|
TRR_DISABLED_MODE = 1,
|
|
TRR_FIRST_MODE = 2,
|
|
TRR_ONLY_MODE = 3
|
|
};
|
|
|
|
/**
|
|
* These methods encode/decode the TRR mode to/from the loadFlags.
|
|
* Helper methods Get/SetTRRModeImpl are provided so implementations don't
|
|
* need to duplicate code.
|
|
*
|
|
* Requests with TRR_DEFAULT_MODE will use the mode indicated by the pref
|
|
* - see network.trr.mode in all.js
|
|
* Requests with TRR_DISABLED_MODE will always use native DNS, even if the
|
|
* pref is set to mode3 (TRR-only).
|
|
* Requests with TRR_FIRST_MODE will first use TRR then fallback to regular
|
|
* DNS, unless TRR is disabled by setting the pref to mode5, parental
|
|
* control being enabled, or the domain being in the exclusion list.
|
|
* Requests with TRR_ONLY_MODE will only use TRR, unless not allowed by
|
|
* the same conditions mentioned above.
|
|
*/
|
|
nsIRequest_TRRMode getTRRMode();
|
|
void setTRRMode(in nsIRequest_TRRMode mode);
|
|
|
|
%{C++
|
|
inline TRRMode GetTRRMode() {
|
|
TRRMode mode = TRR_DEFAULT_MODE;
|
|
GetTRRMode(&mode);
|
|
return mode;
|
|
}
|
|
|
|
inline nsresult GetTRRModeImpl(nsIRequest::TRRMode* aTRRMode) {
|
|
NS_ENSURE_ARG_POINTER(aTRRMode);
|
|
nsLoadFlags flags = nsIRequest::LOAD_NORMAL;
|
|
nsresult rv = GetLoadFlags(&flags);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
*aTRRMode = static_cast<nsIRequest::TRRMode>(
|
|
(flags & nsIRequest::LOAD_TRR_MASK) >> 3);
|
|
return NS_OK;
|
|
}
|
|
|
|
inline nsresult SetTRRModeImpl(nsIRequest::TRRMode aTRRMode) {
|
|
MOZ_ASSERT(aTRRMode <= 3, "invalid value");
|
|
nsLoadFlags flags = nsIRequest::LOAD_NORMAL;
|
|
nsresult rv = GetLoadFlags(&flags);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
flags = (flags & ~nsIRequest::LOAD_TRR_MASK) | (aTRRMode << 3);
|
|
return SetLoadFlags(flags);
|
|
}
|
|
%}
|
|
|
|
/**
|
|
* These two bits encode the TRR mode.
|
|
* Do not get/set manually, rather use the getTRRMode/setTRRMode methods.
|
|
*/
|
|
const unsigned long LOAD_TRR_MASK = (1 << 3) | (1 << 4);
|
|
const unsigned long LOAD_TRR_DISABLED_MODE = 1 << 3;
|
|
const unsigned long LOAD_TRR_FIRST_MODE = 1 << 4;
|
|
const unsigned long LOAD_TRR_ONLY_MODE = (1 << 3) | (1 << 4);
|
|
|
|
void cancelWithReason(in nsresult aStatus, in ACString aReason);
|
|
attribute ACString canceledReason;
|
|
|
|
%{C++
|
|
protected:
|
|
nsCString mCanceledReason;
|
|
|
|
public:
|
|
inline nsresult SetCanceledReasonImpl(const nsACString& aReason) {
|
|
if (mCanceledReason.IsEmpty()) {
|
|
mCanceledReason.Assign(aReason);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
inline nsresult CancelWithReasonImpl(nsresult aStatus,
|
|
const nsACString& aReason) {
|
|
SetCanceledReasonImpl(aReason);
|
|
return Cancel(aStatus);
|
|
}
|
|
|
|
inline nsresult GetCanceledReasonImpl(nsACString& aReason) {
|
|
aReason.Assign(mCanceledReason);
|
|
return NS_OK;
|
|
}
|
|
%}
|
|
|
|
/**
|
|
* This is used for a temporary workaround for a web-compat issue. The flag is
|
|
* only set on CORS preflight request to allowed sending client certificates
|
|
* on a connection for an anonymous request.
|
|
*/
|
|
const long LOAD_ANONYMOUS_ALLOW_CLIENT_CERT = 1 << 5;
|
|
|
|
/**************************************************************************
|
|
* The following flags control the flow of data into the cache.
|
|
*/
|
|
|
|
/**
|
|
* This flag prevents caching of any kind. It does not, however, prevent
|
|
* cached content from being used to satisfy this request.
|
|
*/
|
|
const unsigned long INHIBIT_CACHING = 1 << 7;
|
|
|
|
/**
|
|
* This flag prevents caching on disk (or other persistent media), which
|
|
* may be needed to preserve privacy.
|
|
*/
|
|
const unsigned long INHIBIT_PERSISTENT_CACHING = 1 << 8;
|
|
|
|
/**************************************************************************
|
|
* The following flags control what happens when the cache contains data
|
|
* that could perhaps satisfy this request. They are listed in descending
|
|
* order of precidence.
|
|
*/
|
|
|
|
/**
|
|
* Force an end-to-end download of content data from the origin server.
|
|
* This flag is used for a shift-reload.
|
|
*/
|
|
const unsigned long LOAD_BYPASS_CACHE = 1 << 9;
|
|
|
|
/**
|
|
* Attempt to force a load from the cache, bypassing ALL validation logic
|
|
* (note: this is stronger than VALIDATE_NEVER, which still validates for
|
|
* certain conditions).
|
|
*
|
|
* If the resource is not present in cache, it will be loaded from the
|
|
* network. Combine this flag with LOAD_ONLY_FROM_CACHE if you wish to
|
|
* perform cache-only loads without validation checks.
|
|
*
|
|
* This flag is used when browsing via history. It is not recommended for
|
|
* normal browsing as it may likely violate reasonable assumptions made by
|
|
* the server and confuse users.
|
|
*/
|
|
const unsigned long LOAD_FROM_CACHE = 1 << 10;
|
|
|
|
/**
|
|
* The following flags control the frequency of cached content validation
|
|
* when neither LOAD_BYPASS_CACHE or LOAD_FROM_CACHE are set. By default,
|
|
* cached content is automatically validated if necessary before reuse.
|
|
*
|
|
* VALIDATE_ALWAYS forces validation of any cached content independent of
|
|
* its expiration time (unless it is https with Cache-Control: immutable)
|
|
*
|
|
* VALIDATE_NEVER disables validation of cached content, unless it arrived
|
|
* with the "Cache: no-store" header, or arrived via HTTPS with the
|
|
* "Cache: no-cache" header.
|
|
*
|
|
* VALIDATE_ONCE_PER_SESSION disables validation of expired content,
|
|
* provided it has already been validated (at least once) since the start
|
|
* of this session.
|
|
*
|
|
* NOTE TO IMPLEMENTORS:
|
|
* These flags are intended for normal browsing, and they should therefore
|
|
* not apply to content that must be validated before each use. Consider,
|
|
* for example, a HTTP response with a "Cache-control: no-cache" header.
|
|
* According to RFC2616, this response must be validated before it can
|
|
* be taken from a cache. Breaking this requirement could result in
|
|
* incorrect and potentially undesirable side-effects.
|
|
*/
|
|
const unsigned long VALIDATE_ALWAYS = 1 << 11;
|
|
const unsigned long VALIDATE_NEVER = 1 << 12;
|
|
const unsigned long VALIDATE_ONCE_PER_SESSION = 1 << 13;
|
|
|
|
/**
|
|
* When set, this flag indicates that no user-specific data should be added
|
|
* to the request when opened. This means that things like authorization
|
|
* tokens or cookie headers should not be added.
|
|
*/
|
|
const unsigned long LOAD_ANONYMOUS = 1 << 14;
|
|
|
|
/**
|
|
* When set, this flag indicates that caches of network connections,
|
|
* particularly HTTP persistent connections, should not be used.
|
|
* Use this together with LOAD_INITIAL_DOCUMENT_URI as otherwise it has no
|
|
* effect.
|
|
*/
|
|
const unsigned long LOAD_FRESH_CONNECTION = 1 << 15;
|
|
|
|
// Note that all flags are taken, the rest of the flags
|
|
// are located in nsIChannel and nsICachingChannel
|
|
};
|