================================================================== SWF Capabilities ©2011 JasonLau.biz Contact: http://send.amailto.me/jason ================================================================== 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/>. ================================================================== Description ================================================================== SWF Capabilities is intended to be an aid for webmasters. SWF Capabilities provides a JavaScript API for Local Flash SharedObject (Flash cookies) handling and various other helpful functions. Better than browser cookies, this program provides a means for utilizing Flash's persistent local data storage with JavaScript and Flash cookies. SWF Capabilities can grab the user's "System capabilities" object which holds certain system information that can be used as an aid in things like spam control, user authorization, short-term user validation etc. Referrer and IP can be spoofed, but the System capabilities object can't. SWF Capabilities can also set Flash cookies with randomized names and values. This "key" can be used for things like email verification codes and things of that nature. ================================================================== Usage ================================================================== Embed swf_capabilities.swf in your webpage using SWFObject. The entire source code for SWFObject is contained in this file. Here is the JavaScript and HTML for embedding swf_capabilities.swf <!-- BEGIN --> <script type="text/javascript"> var params = { allowscriptaccess: 'local', swliveconnect: 'true', wmode: 'transparent' }; var attributes = { id: 'capabilities' }; swfobject.embedSWF('swf_capabilities.swf?version=' + Math.floor(Math.random()*1000) + '', 'container-div', '1', '1', '10', 'expressInstall.swf', null, params, attributes); </script> <div id="container-div"></div> <!-- END --> Be sure the path to swf_capabilities.swf and expressInstall.swf are correct. swf_capabilities.swf is 1px X 1px. ================================================================== JavaScript API ================================================================== Below are all of the methods currently available. capabilities.cookies_accepted() - Returns true if Flash cookies are accepted. Use this first. capabilities.get_capabilities(objectKey:String Or stringForm:Boolean) - This will return the user's entire system capabilities object or individual keys. If stringForm is set to true, the user's system capabilities will be returned in string form. Otherwise, the system capabilities object will be returned. capabilities.is_match(sys_capabilities:Object) - Returns true if sys_capabilities matches the user's real system capabilities object. The idea is for you to store the system capabilities object in a cookie and compare the cookie value to the actual value later. If it's a match, then you know the cookie belongs to the user. This is not good for long-term use though. The user could make changes to the computer which would affect the system capabilities object. capabilities.set_cookie(name:String, value) - Sets a local SharedObject using your name and value. Value can be a string or object. Returns false if this fails for any reason. capabilities.get_cookie(name:String) - Gets the value of a local SharedObject using the cookie's name. Returns false if this fails for any reason. capabilities.unset_cookie(name:String) - Deletes a local SharedObject using the cookie's name. Returns false if this fails for any reason. capabilities.set_key(key_length:Number, characters:String) - Sets a local SharedObject with a random name and string value. Returns the name of the cookie that was set. If called more than once, the first object will be overwritten with a new one, so there will never be more than one key. key_length is the length of the random string used for the cookie value. characters is a list of characters that will be used for the random string. key_length and characters can be omitted to use default values. Default length is 100 characters. Default characters are - abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 Returns false if this fails for any reason. capabilities.get_key() - Gets the value of the random local SharedObject. Returns false if this fails for any reason. capabilities.unset_key() - Deletes the random local SharedObject. Returns false if this fails for any reason. capabilities.valid_key(key:String, callback:Object) - Compares key:String with the real key cookie value and triggers a custom callback function if the key is valid. If no callback function is specified, Returns false if the key is invalid. ================================================================== Example ================================================================== <script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script> <script type="text/javascript"> jQuery(document).ready(function () { // Set a random key - returns the name of the random cookie var sk = capabilities.set_key(); // Get the user's computer serverString var cp = capabilities.get_capabilities(true); // Get the key value var k = capabilities.get_key(); // Verify a key matches the user key and trigger a callback function var verify_key = capabilities.valid_key(k, myFunction()); // make an array containing key value and serverString var a = [ k, cp ]; // Create a cookie using the array capabilities.set_cookie('auth',a); // Get the user's system capabilities object var cp = capabilities.get_capabilities(); // Loop through the data var c_data = ''; jQuery.each(cp, function(key, value) { c_data += key + '=' + value + '&'; }); // alert(c_data); }); // Below is the custom callback for capabilities.valid_key(key:String, callback:Object) - // Notice it is located outside of jQuery code. Otherwise, it would throw an error. function myFunction(){ alert('Valid Key!\nThis is my custom callback function!'); } </script> <!-- BEGIN --> <script type="text/javascript"> var params = { allowscriptaccess: 'local', swliveconnect: 'true', wmode: 'transparent' }; var attributes = { id: 'capabilities' }; swfobject.embedSWF('swf_capabilities.swf?version=' + Math.floor(Math.random()*1000) + '', 'container-div', '1', '1', '10', 'expressInstall.swf', null, params, attributes); </script> <div id="container-div"></div> <!-- END --> ================================================================== SWF Object - http://code.google.com/p/swfobject/ ================================================================== <script type="text/javascript"> /* SWFObject v2.2 <http://code.google.com/p/swfobject/> is released under the MIT License <http://www.opensource.org/licenses/mit-license.php> // Renamed for for this program */ var swfobject=function(){var D="undefined",r="object",S="Shockwave Flash",W="ShockwaveFlash.ShockwaveFlash",q="application/x-shockwave-flash",R="SWFObjectExprInst",x="onreadystatechange",O=window,j=document,t=navigator,T=false,U=[h],o=[],N=[],I=[],l,Q,E,B,J=false,a=false,n,G,m=true,M=function(){var aa=typeof j.getElementById!=D&&typeof j.getElementsByTagName!=D&&typeof j.createElement!=D,ah=t.userAgent.toLowerCase(),Y=t.platform.toLowerCase(),ae=Y?/win/.test(Y):/win/.test(ah),ac=Y?/mac/.test(Y):/mac/.test(ah),af=/webkit/.test(ah)?parseFloat(ah.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,X=!+"\v1",ag=[0,0,0],ab=null;if(typeof t.plugins!=D&&typeof t.plugins[S]==r){ab=t.plugins[S].description;if(ab&&!(typeof t.mimeTypes!=D&&t.mimeTypes[q]&&!t.mimeTypes[q].enabledPlugin)){T=true;X=false;ab=ab.replace(/^.*\s+(\S+\s+\S+$)/,"$1");ag[0]=parseInt(ab.replace(/^(.*)\..*$/,"$1"),10);ag[1]=parseInt(ab.replace(/^.*\.(.*)\s.*$/,"$1"),10);ag[2]=/[a-zA-Z]/.test(ab)?parseInt(ab.replace(/^.*[a-zA-Z]+(.*)$/,"$1"),10):0}}else{if(typeof O.ActiveXObject!=D){try{var ad=new ActiveXObject(W);if(ad){ab=ad.GetVariable("$version");if(ab){X=true;ab=ab.split(" ")[1].split(",");ag=[parseInt(ab[0],10),parseInt(ab[1],10),parseInt(ab[2],10)]}}}catch(Z){}}}return{w3:aa,pv:ag,wk:af,ie:X,win:ae,mac:ac}}(),k=function(){if(!M.w3){return}if((typeof j.readyState!=D&&j.readyState=="complete")||(typeof j.readyState==D&&(j.getElementsByTagName("body")[0]||j.body))){f()}if(!J){if(typeof j.addEventListener!=D){j.addEventListener("DOMContentLoaded",f,false)}if(M.ie&&M.win){j.attachEvent(x,function(){if(j.readyState=="complete"){j.detachEvent(x,arguments.callee);f()}});if(O==top){(function(){if(J){return}try{j.documentElement.doScroll("left")}catch(X){setTimeout(arguments.callee,0);return}f()})()}}if(M.wk){(function(){if(J){return}if(!/loaded|complete/.test(j.readyState)){setTimeout(arguments.callee,0);return}f()})()}s(f)}}();function f(){if(J){return}try{var Z=j.getElementsByTagName("body")[0].appendChild(C("span"));Z.parentNode.removeChild(Z)}catch(aa){return}J=true;var X=U.length;for(var Y=0;Y<X;Y++){U[Y]()}}function K(X){if(J){X()}else{U[U.length]=X}}function s(Y){if(typeof O.addEventListener!=D){O.addEventListener("load",Y,false)}else{if(typeof j.addEventListener!=D){j.addEventListener("load",Y,false)}else{if(typeof O.attachEvent!=D){i(O,"onload",Y)}else{if(typeof O.onload=="function"){var X=O.onload;O.onload=function(){X();Y()}}else{O.onload=Y}}}}}function h(){if(T){V()}else{H()}}function V(){var X=j.getElementsByTagName("body")[0];var aa=C(r);aa.setAttribute("type",q);var Z=X.appendChild(aa);if(Z){var Y=0;(function(){if(typeof Z.GetVariable!=D){var ab=Z.GetVariable("$version");if(ab){ab=ab.split(" ")[1].split(",");M.pv=[parseInt(ab[0],10),parseInt(ab[1],10),parseInt(ab[2],10)]}}else{if(Y<10){Y++;setTimeout(arguments.callee,10);return}}X.removeChild(aa);Z=null;H()})()}else{H()}}function H(){var ag=o.length;if(ag>0){for(var af=0;af<ag;af++){var Y=o[af].id;var ab=o[af].callbackFn;var aa={success:false,id:Y};if(M.pv[0]>0){var ae=c(Y);if(ae){if(F(o[af].swfVersion)&&!(M.wk&&M.wk<312)){w(Y,true);if(ab){aa.success=true;aa.ref=z(Y);ab(aa)}}else{if(o[af].expressInstall&&A()){var ai={};ai.data=o[af].expressInstall;ai.width=ae.getAttribute("width")||"0";ai.height=ae.getAttribute("height")||"0";if(ae.getAttribute("class")){ai.styleclass=ae.getAttribute("class")}if(ae.getAttribute("align")){ai.align=ae.getAttribute("align")}var ah={};var X=ae.getElementsByTagName("param");var ac=X.length;for(var ad=0;ad<ac;ad++){if(X[ad].getAttribute("name").toLowerCase()!="movie"){ah[X[ad].getAttribute("name")]=X[ad].getAttribute("value")}}P(ai,ah,Y,ab)}else{p(ae);if(ab){ab(aa)}}}}}else{w(Y,true);if(ab){var Z=z(Y);if(Z&&typeof Z.SetVariable!=D){aa.success=true;aa.ref=Z}ab(aa)}}}}}function z(aa){var X=null;var Y=c(aa);if(Y&&Y.nodeName=="OBJECT"){if(typeof Y.SetVariable!=D){X=Y}else{var Z=Y.getElementsByTagName(r)[0];if(Z){X=Z}}}return X}function A(){return !a&&F("6.0.65")&&(M.win||M.mac)&&!(M.wk&&M.wk<312)}function P(aa,ab,X,Z){a=true;E=Z||null;B={success:false,id:X};var ae=c(X);if(ae){if(ae.nodeName=="OBJECT"){l=g(ae);Q=null}else{l=ae;Q=X}aa.id=R;if(typeof aa.width==D||(!/%$/.test(aa.width)&&parseInt(aa.width,10)<310)){aa.width="310"}if(typeof aa.height==D||(!/%$/.test(aa.height)&&parseInt(aa.height,10)<137)){aa.height="137"}j.title=j.title.slice(0,47)+" - Flash Player Installation";var ad=M.ie&&M.win?"ActiveX":"PlugIn",ac="MMredirectURL="+O.location.toString().replace(/&/g,"%26")+"&MMplayerType="+ad+"&MMdoctitle="+j.title;if(typeof ab.flashvars!=D){ab.flashvars+="&"+ac}else{ab.flashvars=ac}if(M.ie&&M.win&&ae.readyState!=4){var Y=C("div");X+="SWFObjectNew";Y.setAttribute("id",X);ae.parentNode.insertBefore(Y,ae);ae.style.display="none";(function(){if(ae.readyState==4){ae.parentNode.removeChild(ae)}else{setTimeout(arguments.callee,10)}})()}u(aa,ab,X)}}function p(Y){if(M.ie&&M.win&&Y.readyState!=4){var X=C("div");Y.parentNode.insertBefore(X,Y);X.parentNode.replaceChild(g(Y),X);Y.style.display="none";(function(){if(Y.readyState==4){Y.parentNode.removeChild(Y)}else{setTimeout(arguments.callee,10)}})()}else{Y.parentNode.replaceChild(g(Y),Y)}}function g(ab){var aa=C("div");if(M.win&&M.ie){aa.innerHTML=ab.innerHTML}else{var Y=ab.getElementsByTagName(r)[0];if(Y){var ad=Y.childNodes;if(ad){var X=ad.length;for(var Z=0;Z<X;Z++){if(!(ad[Z].nodeType==1&&ad[Z].nodeName=="PARAM")&&!(ad[Z].nodeType==8)){aa.appendChild(ad[Z].cloneNode(true))}}}}}return aa}function u(ai,ag,Y){var X,aa=c(Y);if(M.wk&&M.wk<312){return X}if(aa){if(typeof ai.id==D){ai.id=Y}if(M.ie&&M.win){var ah="";for(var ae in ai){if(ai[ae]!=Object.prototype[ae]){if(ae.toLowerCase()=="data"){ag.movie=ai[ae]}else{if(ae.toLowerCase()=="styleclass"){ah+=' class="'+ai[ae]+'"'}else{if(ae.toLowerCase()!="classid"){ah+=" "+ae+'="'+ai[ae]+'"'}}}}}var af="";for(var ad in ag){if(ag[ad]!=Object.prototype[ad]){af+='<param name="'+ad+'" value="'+ag[ad]+'" />'}}aa.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'+ah+">"+af+"</object>";N[N.length]=ai.id;X=c(ai.id)}else{var Z=C(r);Z.setAttribute("type",q);for(var ac in ai){if(ai[ac]!=Object.prototype[ac]){if(ac.toLowerCase()=="styleclass"){Z.setAttribute("class",ai[ac])}else{if(ac.toLowerCase()!="classid"){Z.setAttribute(ac,ai[ac])}}}}for(var ab in ag){if(ag[ab]!=Object.prototype[ab]&&ab.toLowerCase()!="movie"){e(Z,ab,ag[ab])}}aa.parentNode.replaceChild(Z,aa);X=Z}}return X}function e(Z,X,Y){var aa=C("param");aa.setAttribute("name",X);aa.setAttribute("value",Y);Z.appendChild(aa)}function y(Y){var X=c(Y);if(X&&X.nodeName=="OBJECT"){if(M.ie&&M.win){X.style.display="none";(function(){if(X.readyState==4){b(Y)}else{setTimeout(arguments.callee,10)}})()}else{X.parentNode.removeChild(X)}}}function b(Z){var Y=c(Z);if(Y){for(var X in Y){if(typeof Y[X]=="function"){Y[X]=null}}Y.parentNode.removeChild(Y)}}function c(Z){var X=null;try{X=j.getElementById(Z)}catch(Y){}return X}function C(X){return j.createElement(X)}function i(Z,X,Y){Z.attachEvent(X,Y);I[I.length]=[Z,X,Y]}function F(Z){var Y=M.pv,X=Z.split(".");X[0]=parseInt(X[0],10);X[1]=parseInt(X[1],10)||0;X[2]=parseInt(X[2],10)||0;return(Y[0]>X[0]||(Y[0]==X[0]&&Y[1]>X[1])||(Y[0]==X[0]&&Y[1]==X[1]&&Y[2]>=X[2]))?true:false}function v(ac,Y,ad,ab){if(M.ie&&M.mac){return}var aa=j.getElementsByTagName("head")[0];if(!aa){return}var X=(ad&&typeof ad=="string")?ad:"screen";if(ab){n=null;G=null}if(!n||G!=X){var Z=C("style");Z.setAttribute("type","text/css");Z.setAttribute("media",X);n=aa.appendChild(Z);if(M.ie&&M.win&&typeof j.styleSheets!=D&&j.styleSheets.length>0){n=j.styleSheets[j.styleSheets.length-1]}G=X}if(M.ie&&M.win){if(n&&typeof n.addRule==r){n.addRule(ac,Y)}}else{if(n&&typeof j.createTextNode!=D){n.appendChild(j.createTextNode(ac+" {"+Y+"}"))}}}function w(Z,X){if(!m){return}var Y=X?"visible":"hidden";if(J&&c(Z)){c(Z).style.visibility=Y}else{v("#"+Z,"visibility:"+Y)}}function L(Y){var Z=/[\\\"<>\.;]/;var X=Z.exec(Y)!=null;return X&&typeof encodeURIComponent!=D?encodeURIComponent(Y):Y}var d=function(){if(M.ie&&M.win){window.attachEvent("onunload",function(){var ac=I.length;for(var ab=0;ab<ac;ab++){I[ab][0].detachEvent(I[ab][1],I[ab][2])}var Z=N.length;for(var aa=0;aa<Z;aa++){y(N[aa])}for(var Y in M){M[Y]=null}M=null;for(var X in jlembed_swfobject){jlembed_swfobject[X]=null}jlembed_swfobject=null})}}();return{registerObject:function(ab,X,aa,Z){if(M.w3&&ab&&X){var Y={};Y.id=ab;Y.swfVersion=X;Y.expressInstall=aa;Y.callbackFn=Z;o[o.length]=Y;w(ab,false)}else{if(Z){Z({success:false,id:ab})}}},getObjectById:function(X){if(M.w3){return z(X)}},embedSWF:function(ab,ah,ae,ag,Y,aa,Z,ad,af,ac){var X={success:false,id:ah};if(M.w3&&!(M.wk&&M.wk<312)&&ab&&ah&&ae&&ag&&Y){w(ah,false);K(function(){ae+="";ag+="";var aj={};if(af&&typeof af===r){for(var al in af){aj[al]=af[al]}}aj.data=ab;aj.width=ae;aj.height=ag;var am={};if(ad&&typeof ad===r){for(var ak in ad){am[ak]=ad[ak]}}if(Z&&typeof Z===r){for(var ai in Z){if(typeof am.flashvars!=D){am.flashvars+="&"+ai+"="+Z[ai]}else{am.flashvars=ai+"="+Z[ai]}}}if(F(Y)){var an=u(aj,am,ah);if(aj.id==ah){w(ah,true)}X.success=true;X.ref=an}else{if(aa&&A()){aj.data=aa;P(aj,am,ah,ac);return}else{w(ah,true)}}if(ac){ac(X)}})}else{if(ac){ac(X)}}},switchOffAutoHideShow:function(){m=false},ua:M,getFlashPlayerVersion:function(){return{major:M.pv[0],minor:M.pv[1],release:M.pv[2]}},hasFlashPlayerVersion:F,createSWF:function(Z,Y,X){if(M.w3){return u(Z,Y,X)}else{return undefined}},showExpressInstall:function(Z,aa,X,Y){if(M.w3&&A()){P(Z,aa,X,Y)}},removeSWF:function(X){if(M.w3){y(X)}},createCSS:function(aa,Z,Y,X){if(M.w3){v(aa,Z,Y,X)}},addDomLoadEvent:K,addLoadEvent:s,getQueryParamValue:function(aa){var Z=j.location.search||j.location.hash;if(Z){if(/\?/.test(Z)){Z=Z.split("?")[1]}if(aa==null){return L(Z)}var Y=Z.split("&");for(var X=0;X<Y.length;X++){if(Y[X].substring(0,Y[X].indexOf("="))==aa){return L(Y[X].substring((Y[X].indexOf("=")+1)))}}}return""},expressInstallCallback:function(){if(a){var X=c(R);if(X&&l){X.parentNode.replaceChild(l,X);if(Q){w(Q,true);if(M.ie&&M.win){l.style.display="block"}}if(E){E(B)}}a=false}}}}(); </script>