mirror of
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357 lines
13 KiB
Plaintext
357 lines
13 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIDOMEventTarget.idl"
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interface nsIChannel;
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interface nsIDOMDocument;
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interface nsIDOMEventListener;
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interface nsIPrincipal;
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interface nsIScriptContext;
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interface nsIURI;
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interface nsIVariant;
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interface nsIGlobalObject;
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interface nsIInputStream;
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interface nsIDOMBlob;
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[builtinclass, uuid(88e7d2a0-2e5b-4f65-9624-a61e607a9948)]
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interface nsIXMLHttpRequestEventTarget : nsIDOMEventTarget {
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// event handler attributes
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};
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[builtinclass, uuid(d74c4dc4-bc8c-4f5d-b7f1-121a48750abe)]
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interface nsIXMLHttpRequestUpload : nsIXMLHttpRequestEventTarget {
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// for future use
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};
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/**
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* Mozilla's XMLHttpRequest is modelled after Microsoft's IXMLHttpRequest
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* object. The goal has been to make Mozilla's version match Microsoft's
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* version as closely as possible, but there are bound to be some differences.
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*
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* In general, Microsoft's documentation for IXMLHttpRequest can be used.
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* Mozilla's interface definitions provide some additional documentation. The
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* web page to look at is http://www.mozilla.org/xmlextras/
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*
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* Mozilla's XMLHttpRequest object can be created in JavaScript like this:
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* new XMLHttpRequest()
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* compare to Internet Explorer:
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* new ActiveXObject("Msxml2.XMLHTTP")
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*
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* From JavaScript, the methods and properties visible in the XMLHttpRequest
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* object are a combination of nsIXMLHttpRequest and nsIJSXMLHttpRequest;
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* there is no need to differentiate between those interfaces.
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*
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* From native code, the way to set up onload and onerror handlers is a bit
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* different. Here is a comment from Johnny Stenback <jst@netscape.com>:
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*
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* The mozilla implementation of nsIXMLHttpRequest implements the interface
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* nsIDOMEventTarget and that's how you're supported to add event listeners.
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* Try something like this:
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*
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* nsCOMPtr<nsIDOMEventTarget> target(do_QueryInterface(myxmlhttpreq));
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*
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* target->AddEventListener(NS_LITERAL_STRING("load"), mylistener,
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* PR_FALSE)
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*
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* where mylistener is your event listener object that implements the
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* interface nsIDOMEventListener.
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*
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* The 'onload', 'onerror', and 'onreadystatechange' attributes moved to
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* nsIJSXMLHttpRequest, but if you're coding in C++ you should avoid using
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* those.
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*
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* Conclusion: Do not use event listeners on XMLHttpRequest from C++, unless
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* you're aware of all the security implications. And then think twice about
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* it.
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*/
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[scriptable, uuid(2e91e088-e9fa-4ba4-9887-2a0b7cf27a3e)]
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interface nsIXMLHttpRequest : nsISupports
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{
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/**
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* The request uses a channel in order to perform the
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* request. This attribute represents the channel used
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* for the request. NULL if the channel has not yet been
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* created.
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*
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* Mozilla only. Requires elevated privileges to access.
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*/
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readonly attribute nsIChannel channel;
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/**
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* The response to the request is parsed as if it were a
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* text/xml stream. This attributes represents the response as
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* a DOM Document object. NULL if the request is unsuccessful or
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* has not yet been sent.
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*/
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readonly attribute nsIDOMDocument responseXML;
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/**
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* The response to the request as text.
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* NULL if the request is unsuccessful or
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* has not yet been sent.
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*/
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readonly attribute AString responseText;
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/**
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* Determine a response format which response attribute returns.
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* empty string (initial value) or "text": as text.
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* "arraybuffer": as a typed array ArrayBuffer.
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* "blob": as a File API Blob.
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* "document": as a DOM Document object.
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*/
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attribute AString responseType;
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/**
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* The response to the request as a specified format by responseType.
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* NULL if the request is unsuccessful or
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* has not yet been sent.
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*/
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[implicit_jscontext] readonly attribute jsval /* any */ response;
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/**
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* The status of the response to the request for HTTP requests.
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*/
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// XXX spec says unsigned short
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readonly attribute unsigned long status;
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/**
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* The string representing the status of the response for
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* HTTP requests.
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*/
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readonly attribute ACString statusText;
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/**
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* If the request has been sent already, this method will
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* abort the request.
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*/
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[binaryname(SlowAbort)] void abort();
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/**
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* Returns all of the response headers as a string for HTTP
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* requests.
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*
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* @returns A string containing all of the response headers.
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* The empty string if the response has not yet been received.
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*/
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ACString getAllResponseHeaders();
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/**
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* Returns the text of the header with the specified name for
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* HTTP requests.
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*
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* @param header The name of the header to retrieve
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* @returns A string containing the text of the header specified.
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* NULL if the response has not yet been received or the
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* header does not exist in the response.
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*/
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ACString getResponseHeader(in ACString header);
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%{C++
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// note this is NOT virtual so this won't muck with the vtable!
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inline nsresult Open(const nsACString& method, const nsACString& url,
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bool async, const nsAString& user,
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const nsAString& password) {
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return Open(method, url, async, user, password, 3);
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}
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%}
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/**
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* Meant to be a script-only method for initializing a request.
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*
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* If there is an "active" request (that is, if open() has been called
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* already), this is equivalent to calling abort() and then open().
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*
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* @param method The HTTP method - either "POST" or "GET". Ignored
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* if the URL is not a HTTP URL.
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* @param url The URL to which to send the request.
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* @param async (optional) Whether the request is synchronous or
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* asynchronous i.e. whether send returns only after
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* the response is received or if it returns immediately after
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* sending the request. In the latter case, notification
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* of completion is sent through the event listeners.
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* The default value is true.
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* @param user (optional) A username for authentication if necessary.
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* The default value is the empty string
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* @param password (optional) A password for authentication if necessary.
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* The default value is the empty string
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*/
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[optional_argc] void open(in ACString method, in AUTF8String url,
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[optional] in boolean async,
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[optional,Undefined(Empty)] in DOMString user,
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[optional,Undefined(Empty)] in DOMString password);
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/**
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* Sends the request. If the request is asynchronous, returns
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* immediately after sending the request. If it is synchronous
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* returns only after the response has been received.
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*
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* All event listeners must be set before calling send().
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*
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* After the initial response, all event listeners will be cleared.
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* // XXXbz what does that mean, exactly?
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*
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* @param body Either an instance of nsIDOMDocument, nsIInputStream
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* or a string (nsISupportsString in the native calling
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* case). This is used to populate the body of the
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* HTTP request if the HTTP request method is "POST".
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* If the parameter is a nsIDOMDocument, it is serialized.
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* If the parameter is a nsIInputStream, then it must be
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* compatible with nsIUploadChannel.setUploadStream, and a
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* Content-Length header will be added to the HTTP request
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* with a value given by nsIInputStream.available. Any
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* headers included at the top of the stream will be
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* treated as part of the message body. The MIME type of
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* the stream should be specified by setting the Content-
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* Type header via the setRequestHeader method before
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* calling send.
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*/
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void send([optional] in nsIVariant body);
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/**
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* A variant of the send() method used to send binary data.
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*
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* @param body The request body as a DOM string. The string data will be
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* converted to a single-byte string by truncation (i.e., the
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* high-order byte of each character will be discarded).
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*/
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void sendAsBinary(in DOMString body);
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/**
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* Sets a HTTP request header for HTTP requests. You must call open
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* before setting the request headers.
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*
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* @param header The name of the header to set in the request.
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* @param value The body of the header.
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*/
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void setRequestHeader(in ACString header, in ACString value);
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/**
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* The amount of milliseconds a request can take before being terminated.
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* Initially zero. Zero means there is no timeout.
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*/
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attribute unsigned long timeout;
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/**
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* The state of the request.
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*
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* Possible values:
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* 0 UNSENT open() has not been called yet.
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* 1 OPENED send() has not been called yet.
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* 2 HEADERS_RECEIVED
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* send() has been called, headers and status are available.
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* 3 LOADING Downloading, responseText holds the partial data.
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* 4 DONE Finished with all operations.
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*/
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const unsigned short UNSENT = 0;
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const unsigned short OPENED = 1;
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const unsigned short HEADERS_RECEIVED = 2;
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const unsigned short LOADING = 3;
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const unsigned short DONE = 4;
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readonly attribute unsigned short readyState;
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/**
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* Override the mime type returned by the server (if any). This may
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* be used, for example, to force a stream to be treated and parsed
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* as text/xml, even if the server does not report it as such. This
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* must be done before the <code>send</code> method is invoked.
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*
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* @param mimetype The type used to override that returned by the server
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* (if any).
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*/
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[binaryname(SlowOverrideMimeType)] void overrideMimeType(in DOMString mimetype);
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/**
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* Set to true if this is a background service request. This will
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* prevent a load group being associated with the request, and
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* suppress any security dialogs from being shown * to the user.
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* In the cases where one of those dialogs would be shown, the request
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* will simply fail instead.
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*/
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attribute boolean mozBackgroundRequest;
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/**
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* When set to true attempts to make cross-site Access-Control requests
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* with credentials such as cookies and authorization headers.
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*
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* Never affects same-site requests.
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*
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* Defaults to false.
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*/
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attribute boolean withCredentials;
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/**
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* Initialize the object for use from C++ code with the principal, script
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* context, and owner window that should be used.
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*
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* @param principal The principal to use for the request. This must not be
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* null.
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* @param scriptContext The script context to use for the request. May be
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* null.
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* @param globalObject The associated global for the request. Can be the
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* outer window, a sandbox, or a backstage pass.
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* May be null, but then the request cannot create a
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* document.
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* @param baseURI The base URI to use when resolving relative URIs. May be
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* null.
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*/
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[noscript] void init(in nsIPrincipal principal,
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in nsIScriptContext scriptContext,
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in nsIGlobalObject globalObject,
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in nsIURI baseURI);
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/**
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* Upload process can be tracked by adding event listener to |upload|.
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*/
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readonly attribute nsIXMLHttpRequestUpload upload;
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/**
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* Meant to be a script-only mechanism for setting a callback function.
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* The attribute is expected to be JavaScript function object. When the
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* readyState changes, the callback function will be called.
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* This attribute should not be used from native code!!
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*
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* After the initial response, all event listeners will be cleared.
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* // XXXbz what does that mean, exactly?
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*
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* Call open() before setting an onreadystatechange listener.
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*/
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[implicit_jscontext] attribute jsval onreadystatechange;
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/**
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* If true, the request will be sent without cookie and authentication
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* headers.
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*/
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readonly attribute boolean mozAnon;
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/**
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* If true, the same origin policy will not be enforced on the request.
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*/
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readonly attribute boolean mozSystem;
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};
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[uuid(840d0d00-e83e-4a29-b3c7-67e96e90a499)]
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interface nsIXHRSendable : nsISupports {
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void getSendInfo(out nsIInputStream body,
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out uint64_t contentLength,
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out ACString contentType,
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out ACString charset);
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};
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/**
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* @deprecated
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*/
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[scriptable, uuid(8ae70a39-edf1-40b4-a992-472d23421c25)]
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interface nsIJSXMLHttpRequest : nsISupports {
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};
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%{ C++
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#define NS_XMLHTTPREQUEST_CID \
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{ /* d164e770-4157-11d4-9a42-000064657374 */ \
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0xd164e770, 0x4157, 0x11d4, \
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{0x9a, 0x42, 0x00, 0x00, 0x64, 0x65, 0x73, 0x74} }
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#define NS_XMLHTTPREQUEST_CONTRACTID \
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"@mozilla.org/xmlextras/xmlhttprequest;1"
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%}
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