/*
Wombat.js client-side rewriting engine for web archive replay
Copyright (C) 2014-2020 Webrecorder Software, Rhizome, and Contributors. Released under the GNU Affero General Public License.

This file is part of wombat.js, see https://github.com/webrecorder/wombat.js for the full source
Wombat.js is part of the Webrecorder project (https://github.com/webrecorder)

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
function WBWombat(info){return this instanceof WBWombat?void(this.info=info,this.initImportScriptsRewrite(),this.initHTTPOverrides(),this.initClientApisOverride(),this.initCacheApisOverride()):new WBWombat(info)}WBWombat.prototype.noRewrite=function(url){return!url||url.indexOf("blob:")===0||url.indexOf("javascript:")===0||url.indexOf("data:")===0||url.indexOf(this.info.prefix)===0},WBWombat.prototype.isRelURL=function(url){return url.indexOf("/")===0||url.indexOf("http:")!==0},WBWombat.prototype.maybeResolveURL=function(maybeRelURL,against){if(!against)return maybeRelURL;try{var resolved=new URL(maybeRelURL,against);return resolved.href}catch(e){}return maybeRelURL},WBWombat.prototype.ensureURL=function(url,resolveAgainst){if(!url)return url;var newURL;switch(typeof url){case"string":newURL=url;break;case"object":newURL=url.toString();break;default:return null;}return this.noRewrite(newURL)?null:this.isRelURL(newURL)?this.maybeResolveURL(newURL,resolveAgainst):newURL.indexOf(self.location.origin)===0?this.maybeResolveURL(newURL.slice(self.location.origin.length),resolveAgainst):newURL},WBWombat.prototype.rewriteURL=function(url){var rwURL=this.ensureURL(url,this.info.originalURL);return rwURL?this.info.prefixMod?this.info.prefixMod+rwURL:rwURL:url},WBWombat.prototype.rewriteClientWindowURL=function(url,client){var rwURL=this.ensureURL(url,client?client.url:this.info.originalURL);return rwURL?this.info.prefix?this.info.prefix+"mp_/"+rwURL:rwURL:url},WBWombat.prototype.rewriteWSURL=function(originalURL){if(!originalURL)return originalURL;var urltype_=typeof originalURL,url=originalURL;if(urltype_==="object")url=originalURL.toString();else if(urltype_!=="string")return originalURL;if(!url)return url;var wsScheme="ws://",wssScheme="wss://",https="https://",wbSecure=this.info.prefix.indexOf(https)===0,wbPrefix=this.info.prefix.replace(wbSecure?https:"http://",wbSecure?wssScheme:"ws://")+"ws_/";return wbPrefix+url},WBWombat.prototype.rewriteArgs=function(argsObj){for(var newArgObj=new Array(argsObj.length),i=0;i<newArgObj.length;i++)newArgObj[i]=this.rewriteURL(argsObj[i]);return newArgObj},WBWombat.prototype.rewriteFetchApi=function(input){var rwInput=input;switch(typeof input){case"string":rwInput=this.rewriteURL(input);break;case"object":if(input.url){var new_url=this.rewriteURL(input.url);new_url!==input.url&&(rwInput=new Request(new_url,input))}else input.href&&(rwInput=input.href);}return rwInput},WBWombat.prototype.rewriteCacheApi=function(request){var rwRequest=request;return typeof request==="string"&&(rwRequest=this.rewriteURL(request)),rwRequest},WBWombat.prototype.initImportScriptsRewrite=function(){if(self.importScripts){var wombat=this,origImportScripts=self.importScripts;self.importScripts=function importScripts(){var rwArgs=wombat.rewriteArgs(arguments);return origImportScripts.apply(this,rwArgs)}}},WBWombat.prototype.initHTTPOverrides=function(){var wombat=this;if(self.XMLHttpRequest&&self.XMLHttpRequest.prototype&&self.XMLHttpRequest.prototype.open){var oXHROpen=self.XMLHttpRequest.prototype.open;self.XMLHttpRequest.prototype.open=function open(method,url,async,user,password){var rwURL=wombat.rewriteURL(url),openAsync=true;async==null||async||(openAsync=false),oXHROpen.call(this,method,rwURL,openAsync,user,password),rwURL.indexOf("data:")===-1&&this.setRequestHeader("X-Pywb-Requested-With","XMLHttpRequest")}}if(self.fetch!=null){var orig_fetch=self.fetch;self.fetch=function fetch(input,init_opts){var rwInput=wombat.rewriteFetchApi(input),newInitOpts=init_opts||{};return newInitOpts.credentials="include",orig_fetch.call(this,rwInput,newInitOpts)}}if(self.Request&&self.Request.prototype){var orig_request=self.Request;self.Request=function(Request_){return function Request(input,init_opts){var newInitOpts=init_opts||{},newInput=wombat.rewriteFetchApi(input);return newInitOpts.credentials="include",new Request_(newInput,newInitOpts)}}(self.Request),self.Request.prototype=orig_request.prototype}if(self.Response&&self.Response.prototype){var originalRedirect=self.Response.prototype.redirect;self.Response.prototype.redirect=function redirect(url,status){var rwURL=wombat.rewriteUrl(url);return originalRedirect.call(this,rwURL,status)}}if(self.EventSource&&self.EventSource.prototype){var origEventSource=self.EventSource;self.EventSource=function(EventSource_){return function EventSource(url,configuration){var rwURL=url;return url!=null&&(rwURL=wombat.rewriteUrl(url)),new EventSource_(rwURL,configuration)}}(self.EventSource),self.EventSource.prototype=origEventSource.prototype,Object.defineProperty(self.EventSource.prototype,"constructor",{value:self.EventSource})}if(self.WebSocket&&self.WebSocket.prototype){var origWebSocket=self.WebSocket;self.WebSocket=function(WebSocket_){return function WebSocket(url,configuration){var rwURL=url;return url!=null&&(rwURL=wombat.rewriteWSURL(url)),new WebSocket_(rwURL,configuration)}}(self.WebSocket),self.WebSocket.prototype=origWebSocket.prototype,Object.defineProperty(self.WebSocket.prototype,"constructor",{value:self.WebSocket})}},WBWombat.prototype.initClientApisOverride=function(){var wombat=this;if(self.Clients&&self.Clients.prototype&&self.Clients.prototype.openWindow){var oClientsOpenWindow=self.Clients.prototype.openWindow;self.Clients.prototype.openWindow=function openWindow(url){var rwURL=wombat.rewriteClientWindowURL(url);return oClientsOpenWindow.call(this,rwURL)}}if(self.WindowClient&&self.WindowClient.prototype&&self.WindowClient.prototype.navigate){var oWinClientNavigate=self.WindowClient.prototype.navigate;self.WindowClient.prototype.navigate=function navigate(url){var rwURL=wombat.rewriteClientWindowURL(url,this);return oWinClientNavigate.call(this,rwURL)}}},WBWombat.prototype.initCacheApisOverride=function(){var wombat=this;if(self.CacheStorage&&self.CacheStorage.prototype&&self.CacheStorage.prototype.match){var oCacheStorageMatch=self.CacheStorage.prototype.match;self.CacheStorage.prototype.match=function match(request,options){var rwRequest=wombat.rewriteCacheApi(request);return oCacheStorageMatch.call(this,rwRequest,options)}}if(self.Cache&&self.Cache.prototype){if(self.Cache.prototype.match){var oCacheMatch=self.Cache.prototype.match;self.Cache.prototype.match=function match(request,options){var rwRequest=wombat.rewriteCacheApi(request);return oCacheMatch.call(this,rwRequest,options)}}if(self.Cache.prototype.matchAll){var oCacheMatchAll=self.Cache.prototype.matchAll;self.Cache.prototype.matchAll=function matchAll(request,options){var rwRequest=wombat.rewriteCacheApi(request);return oCacheMatchAll.call(this,rwRequest,options)}}if(self.Cache.prototype.add){var oCacheAdd=self.Cache.prototype.add;self.Cache.prototype.add=function add(request,options){var rwRequest=wombat.rewriteCacheApi(request);return oCacheAdd.call(this,rwRequest,options)}}if(self.Cache.prototype.addAll){var oCacheAddAll=self.Cache.prototype.addAll;self.Cache.prototype.addAll=function addAll(requests){var rwRequests=requests;if(Array.isArray(requests)){rwRequests=new Array(requests.length);for(var i=0;i<requests.length;i++)rwRequests[i]=wombat.rewriteCacheApi(requests[i])}return oCacheAddAll.call(this,rwRequests)}}if(self.Cache.prototype.put){var oCachePut=self.Cache.prototype.put;self.Cache.prototype.put=function put(request,response){var rwRequest=wombat.rewriteCacheApi(request);return oCachePut.call(this,rwRequest,response)}}if(self.Cache.prototype.delete){var oCacheDelete=self.Cache.prototype.delete;self.Cache.prototype.delete=function newCacheDelete(request,options){var rwRequest=wombat.rewriteCacheApi(request);return oCacheDelete.call(this,rwRequest,options)}}if(self.Cache.prototype.keys){var oCacheKeys=self.Cache.prototype.keys;self.Cache.prototype.keys=function keys(request,options){var rwRequest=wombat.rewriteCacheApi(request);return oCacheKeys.call(this,rwRequest,options)}}}},self.WBWombat=WBWombat;
