peer-proxy/lib/public/peer-proxy.js

Proxy web service from peer

(function($){
$(document).ready(function(){
    var debug = 0;
	// regex helpers
    var REGEX_URL  = new RegExp("https?://[a-z0-9-]+(\.[a-z0-9-]+)+(/?)", "gi");
    var vurleregex = /([0-9]|[a-f]){32}/gi;
    var vhostregex = /([0-9]|[a-f]){32}\.vurl\./gi;
    var vpathregex = /\/vurl\/([0-9]|[a-f]){32}/gi;
    var vurlsregex = /(([0-9]|[a-f]){32}\.vurl\.)|(([0-9]|[a-f]){32}\.vurl\.)/;
 
    // href rewrite
	function hrefRewrite(){
	    var hrefobj = {};
	    var hrefs = [];
	    
	    if (debug) console.log("link size:"+document.links.length);
	    // get all un-proxied hrefs
	    for (var idx in document.links) {
	        var href = document.links[idx].href;
	        if (href && href.match(REGEX_URL) && !href.match(vurlsregex)) {
	            if (!hrefobj[href]) hrefobj[href] = true;;
	        }
	        if (debug) console.log("href:"+href);
	    }
	    hrefs = Object.keys(hrefobj);
	    if (debug) console.log("unproxied href size:"+hrefs.length);
	    
	    // ask ajax to proxy hrefs every 20 link
	    for (var idx=0; idx < hrefs.length; idx+=20) {
	        var qsstr  = "/vadmin/3/?url=";
	        
	        // build qs string
	        for (var i=idx; (i<idx+20)&&(i<hrefs.length); i++) {
	            qsstr += hrefs[i].replace("%&","%25%26").replace("&", "%26")+","; // escape &
	        }
	        
	        $.post(location.protocol+'//'+location.host+qsstr,
	        function(data, status){
	            if (debug) console.log("ajax status:"+status+",data:"+JSON.stringify(data));
	            
	            if (status == 'success') {
	                for (var url in data) {
			            // rewrite href
			            var vurlstr = data[url].split('/');
			            var proxstr = data[url].replace(vurlstr[2], location.host.replace(vhostregex, data[url].match(vhostregex)[0])); 
			            
				        if (debug) console.log("link:"+url+" -> "+data[url]+" -> "+proxstr);
				        $("[href="+"'"+url+"'"+"]").attr("href", proxstr);
			        }
	            }
	        });
	    }
	}
	
    // apply rewrite
    if (debug) console.log("trigger in document.ready");
    hrefRewrite();
    
    // body event
    /*
    $("body").change(function(){
        if (debug) console.log("trigger in body.change");
        hrefRewrite();
    });
    */
    
    /*
    // button event
    $("button").click(function(){
        if (debug) console.log("trigger in button.click");
        hrefRewrite();
    });
    $("button").keypress(function(){
        if (debug) console.log("trigger in button.keypress");
        hrefRewrite();
    });
    
    // input event
    $("input").click(function(){
        if (debug) console.log("trigger in input.click");
        hrefRewrite();
    });
    $("input").keypress(function(){
        if (debug) console.log("trigger in input.keypress");
        hrefRewrite();
    });
    */
    
    // ...
});
})(jQuery.noConflict());