394 lines
15 KiB
Plaintext
394 lines
15 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; 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 "nsIChannel.idl"
|
|
|
|
interface nsIHttpHeaderVisitor;
|
|
|
|
/**
|
|
* nsIHttpChannel
|
|
*
|
|
* This interface allows for the modification of HTTP request parameters and
|
|
* the inspection of the resulting HTTP response status and headers when they
|
|
* become available.
|
|
*/
|
|
[builtinclass, scriptable, uuid(b2596105-3d0d-4e6a-824f-0539713bb879)]
|
|
interface nsIHttpChannel : nsIChannel
|
|
{
|
|
/**************************************************************************
|
|
* REQUEST CONFIGURATION
|
|
*
|
|
* Modifying request parameters after asyncOpen has been called is an error.
|
|
*/
|
|
|
|
/**
|
|
* Set/get the HTTP request method (default is "GET"). Both setter and
|
|
* getter are case sensitive.
|
|
*
|
|
* This attribute may only be set before the channel is opened.
|
|
*
|
|
* NOTE: The data for a "POST" or "PUT" request can be configured via
|
|
* nsIUploadChannel; however, after setting the upload data, it may be
|
|
* necessary to set the request method explicitly. The documentation
|
|
* for nsIUploadChannel has further details.
|
|
*
|
|
* @throws NS_ERROR_IN_PROGRESS if set after the channel has been opened.
|
|
*/
|
|
attribute ACString requestMethod;
|
|
|
|
/**
|
|
* Get/set the HTTP referrer URI. This is the address (URI) of the
|
|
* resource from which this channel's URI was obtained (see RFC2616 section
|
|
* 14.36).
|
|
*
|
|
* This attribute may only be set before the channel is opened.
|
|
*
|
|
* NOTE: The channel may silently refuse to set the Referer header if the
|
|
* URI does not pass certain security checks (e.g., a "https://" URL will
|
|
* never be sent as the referrer for a plaintext HTTP request). The
|
|
* implementation is not required to throw an exception when the referrer
|
|
* URI is rejected.
|
|
*
|
|
* @throws NS_ERROR_IN_PROGRESS if set after the channel has been opened.
|
|
*/
|
|
attribute nsIURI referrer;
|
|
|
|
/**
|
|
* Referrer policies. See ReferrerPolicy.h for more details.
|
|
*/
|
|
|
|
/* default state, a shorter name for no-referrer-when-downgrade */
|
|
const unsigned long REFERRER_POLICY_DEFAULT = 0;
|
|
/* default state, doesn't send referrer from https->http */
|
|
const unsigned long REFERRER_POLICY_NO_REFERRER_WHEN_DOWNGRADE = 0;
|
|
/* sends no referrer */
|
|
const unsigned long REFERRER_POLICY_NO_REFERRER = 1;
|
|
/* only sends the origin of the referring URL */
|
|
const unsigned long REFERRER_POLICY_ORIGIN = 2;
|
|
/* same as default, but reduced to ORIGIN when cross-origin. */
|
|
const unsigned long REFERRER_POLICY_ORIGIN_WHEN_XORIGIN = 3;
|
|
/* always sends the referrer, even on downgrade. */
|
|
const unsigned long REFERRER_POLICY_UNSAFE_URL = 4;
|
|
|
|
/**
|
|
* Get the HTTP referrer policy. The policy is retrieved from the meta
|
|
* referrer tag, which can be one of many values (see ReferrerPolicy.h for
|
|
* more details).
|
|
*/
|
|
readonly attribute unsigned long referrerPolicy;
|
|
|
|
/**
|
|
* Set the HTTP referrer URI with a referrer policy.
|
|
*/
|
|
void setReferrerWithPolicy(in nsIURI referrer, in unsigned long referrerPolicy);
|
|
|
|
/**
|
|
* Returns the network protocol used to fetch the resource as identified
|
|
* by the ALPN Protocol ID.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
readonly attribute ACString protocolVersion;
|
|
|
|
/**
|
|
* size consumed by the response header fields and the response payload body
|
|
*/
|
|
readonly attribute uint64_t transferSize;
|
|
|
|
/**
|
|
* The size of the message body received by the client,
|
|
* after removing any applied content-codings
|
|
*/
|
|
readonly attribute uint64_t decodedBodySize;
|
|
|
|
/**
|
|
* The size in octets of the payload body, prior to removing content-codings
|
|
*/
|
|
readonly attribute uint64_t encodedBodySize;
|
|
|
|
/**
|
|
* Get the value of a particular request header.
|
|
*
|
|
* @param aHeader
|
|
* The case-insensitive name of the request header to query (e.g.,
|
|
* "Cache-Control").
|
|
*
|
|
* @return the value of the request header.
|
|
* @throws NS_ERROR_NOT_AVAILABLE if the header is not set.
|
|
*/
|
|
ACString getRequestHeader(in ACString aHeader);
|
|
|
|
/**
|
|
* Set the value of a particular request header.
|
|
*
|
|
* This method allows, for example, the cookies module to add "Cookie"
|
|
* headers to the outgoing HTTP request.
|
|
*
|
|
* This method may only be called before the channel is opened.
|
|
*
|
|
* @param aHeader
|
|
* The case-insensitive name of the request header to set (e.g.,
|
|
* "Cookie").
|
|
* @param aValue
|
|
* The request header value to set (e.g., "X=1").
|
|
* @param aMerge
|
|
* If true, the new header value will be merged with any existing
|
|
* values for the specified header. This flag is ignored if the
|
|
* specified header does not support merging (e.g., the "Content-
|
|
* Type" header can only have one value). The list of headers for
|
|
* which this flag is ignored is an implementation detail. If this
|
|
* flag is false, then the header value will be replaced with the
|
|
* contents of |aValue|.
|
|
*
|
|
* If aValue is empty and aMerge is false, the header will be cleared.
|
|
*
|
|
* @throws NS_ERROR_IN_PROGRESS if called after the channel has been
|
|
* opened.
|
|
*/
|
|
void setRequestHeader(in ACString aHeader,
|
|
in ACString aValue,
|
|
in boolean aMerge);
|
|
|
|
/**
|
|
* Set a request header with empty value.
|
|
*
|
|
* This should be used with caution in the cases where the behavior of
|
|
* setRequestHeader ignoring empty header values is undesirable.
|
|
*
|
|
* This method may only be called before the channel is opened.
|
|
*
|
|
* @param aHeader
|
|
* The case-insensitive name of the request header to set (e.g.,
|
|
* "Cookie").
|
|
*
|
|
* @throws NS_ERROR_IN_PROGRESS if called after the channel has been
|
|
* opened.
|
|
*/
|
|
void setEmptyRequestHeader(in ACString aHeader);
|
|
|
|
/**
|
|
* Call this method to visit all request headers. Calling setRequestHeader
|
|
* while visiting request headers has undefined behavior. Don't do it!
|
|
*
|
|
* @param aVisitor
|
|
* the header visitor instance.
|
|
*/
|
|
void visitRequestHeaders(in nsIHttpHeaderVisitor aVisitor);
|
|
|
|
/**
|
|
* Call this method to visit all non-default (UA-provided) request headers.
|
|
* Calling setRequestHeader while visiting request headers has undefined
|
|
* behavior. Don't do it!
|
|
*
|
|
* @param aVisitor
|
|
* the header visitor instance.
|
|
*/
|
|
void visitNonDefaultRequestHeaders(in nsIHttpHeaderVisitor aVisitor);
|
|
|
|
/**
|
|
* This attribute is a hint to the channel to indicate whether or not
|
|
* the underlying HTTP transaction should be allowed to be pipelined
|
|
* with other transactions. This should be set to FALSE, for example,
|
|
* if the application knows that the corresponding document is likely
|
|
* to be very large.
|
|
*
|
|
* This attribute is true by default, though other factors may prevent
|
|
* pipelining.
|
|
*
|
|
* This attribute may only be set before the channel is opened.
|
|
*
|
|
* @throws NS_ERROR_FAILURE if set after the channel has been opened.
|
|
*/
|
|
attribute boolean allowPipelining;
|
|
|
|
/**
|
|
* This attribute of the channel indicates whether or not
|
|
* the underlying HTTP transaction should be honor stored Strict Transport
|
|
* Security directives for its principal. It defaults to true. Using
|
|
* OCSP to bootstrap the HTTPs is the likely use case for setting it to
|
|
* false.
|
|
*
|
|
* This attribute may only be set before the channel is opened.
|
|
*
|
|
* @throws NS_ERROR_IN_PROGRESS or NS_ERROR_ALREADY_OPENED
|
|
* if called after the channel has been opened.
|
|
*/
|
|
attribute boolean allowSTS;
|
|
|
|
/**
|
|
* This attribute specifies the number of redirects this channel is allowed
|
|
* to make. If zero, the channel will fail to redirect and will generate
|
|
* a NS_ERROR_REDIRECT_LOOP failure status.
|
|
*
|
|
* NOTE: An HTTP redirect results in a new channel being created. If the
|
|
* new channel supports nsIHttpChannel, then it will be assigned a value
|
|
* to its |redirectionLimit| attribute one less than the value of the
|
|
* redirected channel's |redirectionLimit| attribute. The initial value
|
|
* for this attribute may be a configurable preference (depending on the
|
|
* implementation).
|
|
*/
|
|
attribute unsigned long redirectionLimit;
|
|
|
|
|
|
/**************************************************************************
|
|
* RESPONSE INFO
|
|
*
|
|
* Accessing response info before the onStartRequest event is an error.
|
|
*/
|
|
|
|
/**
|
|
* Get the HTTP response code (e.g., 200).
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
readonly attribute unsigned long responseStatus;
|
|
|
|
/**
|
|
* Get the HTTP response status text (e.g., "OK").
|
|
*
|
|
* NOTE: This returns the raw (possibly 8-bit) text from the server. There
|
|
* are no assumptions made about the charset of the returned text. You
|
|
* have been warned!
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
readonly attribute ACString responseStatusText;
|
|
|
|
/**
|
|
* Returns true if the HTTP response code indicates success. The value of
|
|
* nsIRequest::status will be NS_OK even when processing a 404 response
|
|
* because a 404 response may include a message body that (in some cases)
|
|
* should be shown to the user.
|
|
*
|
|
* Use this attribute to distinguish server error pages from normal pages,
|
|
* instead of comparing the response status manually against the set of
|
|
* valid response codes, if that is required by your application.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
readonly attribute boolean requestSucceeded;
|
|
|
|
/** Indicates whether channel should be treated as the main one for the
|
|
* current document. If manually set to true, will always remain true. Otherwise,
|
|
* will be true iff LOAD_DOCUMENT_URI is set in the channel's loadflags.
|
|
*/
|
|
attribute boolean isMainDocumentChannel;
|
|
|
|
/**
|
|
* Get the value of a particular response header.
|
|
*
|
|
* @param aHeader
|
|
* The case-insensitive name of the response header to query (e.g.,
|
|
* "Set-Cookie").
|
|
*
|
|
* @return the value of the response header.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest) or if the header is
|
|
* not set in the response.
|
|
*/
|
|
ACString getResponseHeader(in ACString header);
|
|
|
|
/**
|
|
* Set the value of a particular response header.
|
|
*
|
|
* This method allows, for example, the HTML content sink to inform the HTTP
|
|
* channel about HTTP-EQUIV headers found in HTML <META> tags.
|
|
*
|
|
* @param aHeader
|
|
* The case-insensitive name of the response header to set (e.g.,
|
|
* "Cache-control").
|
|
* @param aValue
|
|
* The response header value to set (e.g., "no-cache").
|
|
* @param aMerge
|
|
* If true, the new header value will be merged with any existing
|
|
* values for the specified header. This flag is ignored if the
|
|
* specified header does not support merging (e.g., the "Content-
|
|
* Type" header can only have one value). The list of headers for
|
|
* which this flag is ignored is an implementation detail. If this
|
|
* flag is false, then the header value will be replaced with the
|
|
* contents of |aValue|.
|
|
*
|
|
* If aValue is empty and aMerge is false, the header will be cleared.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
* @throws NS_ERROR_ILLEGAL_VALUE if changing the value of this response
|
|
* header is not allowed.
|
|
*/
|
|
void setResponseHeader(in ACString header,
|
|
in ACString value,
|
|
in boolean merge);
|
|
|
|
/**
|
|
* Call this method to visit all response headers. Calling
|
|
* setResponseHeader while visiting response headers has undefined
|
|
* behavior. Don't do it!
|
|
*
|
|
* @param aVisitor
|
|
* the header visitor instance.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
void visitResponseHeaders(in nsIHttpHeaderVisitor aVisitor);
|
|
|
|
/**
|
|
* Returns true if the server sent a "Cache-Control: no-store" response
|
|
* header.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
boolean isNoStoreResponse();
|
|
|
|
/**
|
|
* Returns true if the server sent the equivalent of a "Cache-control:
|
|
* no-cache" response header. Equivalent response headers include:
|
|
* "Pragma: no-cache", "Expires: 0", and "Expires" with a date value
|
|
* in the past relative to the value of the "Date" header.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
boolean isNoCacheResponse();
|
|
|
|
/**
|
|
* Returns true if the server sent a "Cache-Control: private" response
|
|
* header.
|
|
*
|
|
* @throws NS_ERROR_NOT_AVAILABLE if called before the response
|
|
* has been received (before onStartRequest).
|
|
*/
|
|
boolean isPrivateResponse();
|
|
|
|
/**
|
|
* Instructs the channel to immediately redirect to a new destination.
|
|
* Can only be called on channels not yet opened.
|
|
*
|
|
* This method provides no explicit conflict resolution. The last
|
|
* caller to call it wins.
|
|
*
|
|
* @throws NS_ERROR_ALREADY_OPENED if called after the channel
|
|
* has been opened.
|
|
*/
|
|
void redirectTo(in nsIURI aNewURI);
|
|
|
|
/**
|
|
* Identifies the scheduling context for this load.
|
|
*/
|
|
[noscript] attribute nsID schedulingContextID;
|
|
|
|
/**
|
|
* ID of the top-level document's inner window. Identifies the content
|
|
* this channel is being loaded in.
|
|
*/
|
|
attribute uint64_t topLevelContentWindowId;
|
|
};
|