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ve.init.mw.ArticleTargetSaver.js
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ve.init.mw.ArticleTargetSaver.js
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/*!
* VisualEditor MediaWiki ArticleTargetSaver.
*
* @copyright See AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* Target saver.
*
* Light-weight saver.
*
* @class mw.libs.ve.targetSaver
* @singleton
* @hideconstructor
*/
( function () {
mw.libs.ve = mw.libs.ve || {};
mw.libs.ve.targetSaver = {
/**
* Preload the library required for deflating so the user doesn't
* have to wait when postHtml is called.
*/
preloadDeflate: function () {
mw.loader.load( 'mediawiki.deflate' );
},
/**
* Compress a string with deflate.
*
* @param {string} html HTML to deflate
* @return {jQuery.Promise} Promise resolved with deflated HTML
*/
deflate: function ( html ) {
return mw.loader.using( 'mediawiki.deflate' ).then( () => mw.deflateAsync( html ) );
},
/**
* Get HTML to send to Parsoid.
*
* If the document was generated from scratch (e.g. inside VisualEditor's converter), the
* source document can be passed in to transplant the head tag, as well as the attributes
* on the html and body tags.
*
* @param {HTMLDocument} newDoc Document generated by ve.dm.Converter. Will be modified.
* @param {HTMLDocument} [oldDoc] Old document to copy attributes from.
* @return {string} Full HTML document
*/
getHtml: function ( newDoc, oldDoc ) {
function copyAttributes( from, to ) {
Array.prototype.forEach.call( from.attributes, ( attr ) => {
to.setAttribute( attr.name, attr.value );
} );
}
if ( oldDoc ) {
// Copy the head from the old document
for ( let i = 0, len = oldDoc.head.childNodes.length; i < len; i++ ) {
newDoc.head.appendChild( oldDoc.head.childNodes[ i ].cloneNode( true ) );
}
// Copy attributes from the old document for the html, head and body
copyAttributes( oldDoc.documentElement, newDoc.documentElement );
copyAttributes( oldDoc.head, newDoc.head );
copyAttributes( oldDoc.body, newDoc.body );
}
// Filter out junk that may have been added by browser plugins
$( newDoc )
.find( [
'script', // T54884, T65229, T96533, T103430
'noscript', // T144891
'object', // T65229
'style:not( [ data-mw ] ):not( [ data-mw-deduplicate ] )', // T55252, but allow <style data-mw(-deduplicate)/> e.g. TemplateStyles T188143
'embed', // T53521, T54791, T65121
'a[href^="javascript:"]', // T200971
'img[src^="data:"]', // T192392
'div[id="myEventWatcherDiv"]', // T53423
'div[id="sendToInstapaperResults"]', // T63776
'div[id="kloutify"]', // T69006
'div[id^="mittoHidden"]', // T70900
'div.hon.certificateLink', // HON (T209619)
'div.donut-container', // Web of Trust (T189148)
'div.shield-container' // Web of Trust (T297862)
].join( ',' ) )
.each( ( j, el ) => {
function truncate( text, l ) {
return text.length > l ? text.slice( 0, l ) + '…' : text;
}
const errorMessage = 'DOM content matching deny list found:\n' + truncate( el.outerHTML, 100 ) +
'\nContext:\n' + truncate( el.parentNode.outerHTML, 200 );
mw.log.error( errorMessage );
const err = new Error( errorMessage );
err.name = 'VeDomDenyListWarning';
mw.errorLogger.logError( err, 'error.visualeditor' );
$( el ).remove();
} );
// data-mw-section-id is copied to headings by mw.libs.ve.unwrapParsoidSections
// Remove these to avoid triggering selser.
$( newDoc ).find( '[data-mw-section-id]:not( section )' ).removeAttr( 'data-mw-section-id' );
// Deduplicate styles (we re-duplicated them in ve.init.mw.Target.static.parseDocument)
// to let selser recognize the nodes and avoid dirty diffs.
mw.libs.ve.deduplicateStyles( newDoc.body );
// Add doctype manually
// ve.properOuterHtml is loaded separately in ve.utils.parsing.js
// eslint-disable-next-line no-undef
return '<!doctype html>' + ve.properOuterHtml( newDoc.documentElement );
},
/**
* Serialize and deflate an HTML document
*
* @param {HTMLDocument} doc Document generated by ve.dm.Converter. Will be modified.
* @param {HTMLDocument} [oldDoc] Old document to copy attributes from.
* @return {jQuery.Promise} Promise resolved with deflated HTML
*/
deflateDoc: function ( doc, oldDoc ) {
return this.deflate( this.getHtml( doc, oldDoc ) );
},
/**
* Post an HTML document to the API.
*
* Serializes the document to HTML, deflates it, then passes to #postHtml.
*
* @param {HTMLDocument} doc Document to save
* @param {Object} [extraData] Extra data to send to the API
* @param {Object} [options]
* @return {jQuery.Promise} Promise which resolves if the post was successful
*/
saveDoc: function ( doc, extraData, options ) {
return this.deflateDoc( doc ).then( ( html ) => this.postHtml(
html,
null,
extraData,
options
) );
},
/**
* Post wikitext to the API.
*
* By default uses action=visualeditoredit, paction=save.
*
* @param {string} wikitext Wikitext to post. Deflating is optional but recommended.
* @param {Object} [extraData] Extra data to send to the API
* @param {Object} [options]
* @param {mw.Api} [options.api] Api to use
* @param {Function} [options.now] Function returning current time in milliseconds for tracking, e.g. ve.now
* @param {Function} [options.track] Tracking function
* @param {string} [options.eventName] Event name for tracking
* @return {jQuery.Promise} Promise which resolves with API save data, or rejects with error details
*/
postWikitext: function ( wikitext, extraData, options ) {
return this.postContent( $.extend( { wikitext: wikitext }, extraData ), options );
},
/**
* Post HTML to the API.
*
* By default uses action=visualeditoredit, paction=save.
*
* @param {string} html HTML to post. Deflating is optional but recommended.
* Should be included for retries even if a cache key is provided.
* @param {string} [cacheKey] Optional cache key of HTML stashed on server.
* @param {Object} [extraData] Extra data to send to the API
* @param {Object} [options]
* @return {jQuery.Promise} Promise which resolves with API save data, or rejects with error details
*/
postHtml: function ( html, cacheKey, extraData, options ) {
options = options || {};
let data;
if ( cacheKey ) {
data = $.extend( { cachekey: cacheKey }, extraData );
} else {
data = $.extend( { html: html }, extraData );
}
return this.postContent( data, options ).then(
null,
( code, response ) => {
// This cache key is evidently bad, clear it
if ( options.onCacheKeyFail ) {
options.onCacheKeyFail();
}
if ( code === 'badcachekey' ) {
// If the cache key failed, try again without the cache key
return this.postHtml(
html,
null,
extraData,
options
);
}
// Failed for some other reason - let caller handle it.
return $.Deferred().reject( code, response ).promise();
}
);
},
/**
* Post content to the API, using mw.Api#postWithToken to retry automatically when encountering
* a 'badtoken' error.
*
* By default uses action=visualeditoredit, paction=save.
*
* @param {string} data Content data
* @param {Object} [options]
* @param {mw.Api} [options.api] Api to use
* @param {Function} [options.now] Function returning current time in milliseconds for tracking, e.g. ve.now
* @param {Function} [options.track] Tracking function
* @param {string} [options.eventName] Event name for tracking
* @return {jQuery.Promise} Promise which resolves with API save data, or rejects with error details
*/
postContent: function ( data, options ) {
options = options || {};
const api = options.api || new mw.Api();
let start;
if ( options.now ) {
start = options.now();
}
data = $.extend(
{
action: 'visualeditoredit',
paction: 'save',
useskin: mw.config.get( 'skin' ),
// Same as OO.ui.isMobile()
mobileformat: !!mw.config.get( 'wgMFMode' ),
formatversion: 2,
errorformat: 'html',
errorlang: mw.config.get( 'wgUserLanguage' ),
errorsuselocal: true
},
data
);
const action = data.action;
const request = api.postWithToken( 'csrf', data, {
contentType: 'multipart/form-data',
trackEditAttemptStepSessionId: true
} );
return request.then(
( response, jqxhr ) => {
const responseData = response[ action ];
// Log data about the request if eventName was set
if ( options.track && options.eventName ) {
const eventData = {
bytes: require( 'mediawiki.String' ).byteLength( jqxhr.responseText ),
duration: options.now() - start
};
const fullEventName = 'performance.system.' + options.eventName +
( responseData.cachekey ? '.withCacheKey' : '.withoutCacheKey' );
options.track( fullEventName, eventData );
}
let error;
if ( !responseData ) {
error = {
code: 'invalidresponse',
html: mw.message( 'api-clientside-error-invalidresponse' ).parse()
};
} else if ( responseData.result !== 'success' ) {
// This should only happen when saving an edit and getting a captcha from ConfirmEdit
// extension (`data.result === 'error'`). It's a silly special case...
return $.Deferred().reject( 'no-error-no-success', response ).promise();
} else {
// paction specific errors
switch ( responseData.paction ) {
case 'save':
case 'serialize':
if ( typeof responseData.content !== 'string' ) {
error = {
code: 'invalidcontent',
html: mw.message( 'api-clientside-error-invalidresponse' ).parse()
};
}
break;
case 'diff':
if ( typeof responseData.diff !== 'string' ) {
error = {
code: 'invalidcontent',
html: mw.message( 'api-clientside-error-invalidresponse' ).parse()
};
}
break;
}
}
if ( error ) {
// Use the same format as API errors
return $.Deferred().reject( error.code, { errors: [ error ] } ).promise();
}
return responseData;
},
( code, response ) => {
const responseText = OO.getProp( response, 'xhr', 'responseText' );
if ( responseText && options.track && options.eventName ) {
const eventData = {
bytes: require( 'mediawiki.String' ).byteLength( responseText ),
duration: options.now() - start
};
let fullEventName;
if ( code === 'badcachekey' ) {
fullEventName = 'performance.system.' + options.eventName + '.badCacheKey';
} else {
fullEventName = 'performance.system.' + options.eventName + '.withoutCacheKey';
}
options.track( fullEventName, eventData );
}
return $.Deferred().reject( code, response ).promise();
}
);
}
};
}() );

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