website-page-frame
Version:
This library provides a way to allow browser based programs to have cross parent to child window communication through code.
104 lines (61 loc) • 3.27 kB
JavaScript
/*
* This library provides an alternative in app browser to webview by removing specific restrictions placed upon iframe and more.
* Copyright (C) 2019 Ryan Molyneux
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
var ResponseModificationChainLink = require("./ResponseModificationChainLink.js").ResponseModificationChainLink;
var Response = require("../network-messages/Response.js").Response;
var Script = require("../scripts/Script.js").Script;
var JSDOM = require("jsdom").JSDOM;
function BodyScriptInjectionChainLink(scriptsToBeInjected) {
ResponseModificationChainLink.call(this);
this._scriptsToBeInjected = null;
this.setScriptsToBeInjected(scriptsToBeInjected);
}
BodyScriptInjectionChainLink.prototype = Object.create(ResponseModificationChainLink.prototype);
BodyScriptInjectionChainLink.prototype.constructor = BodyScriptInjectionChainLink;
BodyScriptInjectionChainLink.prototype.preformTask = function(response, cache) {
if ( response instanceof Response ) {
var modifiedCopyOfResponseBody = new JSDOM(response.getBody());
for (var i = 0; i < this._scriptsToBeInjected.length; i++) {
modifiedCopyOfResponseBody.window.document.body.innerHTML = this._scriptsToBeInjected[i].toHtmlElementString() + modifiedCopyOfResponseBody.window.document.body.innerHTML;
}
response.setBody( modifiedCopyOfResponseBody.serialize() );
} else {
throw new TypeError("BodyScriptInjectionChainLink preformTask, response expected to be instanceof Response.");
}
};
BodyScriptInjectionChainLink.prototype.getScriptsToBeInjected = function() {
return this._scriptsToBeInjected;
};
BodyScriptInjectionChainLink.prototype.setScriptsToBeInjected = function(scripts) {
if ( !(scripts instanceof Array) ) {
throw new TypeError("BodyScriptInjectionChainLink setScriptsToBeInjected, parameter scripts expected to be instanceof Array.");
} else if ( this._arrayDoesNotOnlyContainScripts(scripts) ) {
throw new TypeError( "BodyScriptInjectionChainLink setScriptsToBeInjected, parameter scripts Array is expected to only contain "
+ "instances of class Script or any of its descendants.");
} else {
this._scriptsToBeInjected = scripts;
}
};
BodyScriptInjectionChainLink.prototype._arrayDoesNotOnlyContainScripts = function(scripts) {
for (var i = 0; i < scripts.length; i++) {
if ( !(scripts[i] instanceof Script) ) {
return true;
}
}
return false;
}
exports.BodyScriptInjectionChainLink = BodyScriptInjectionChainLink;