data.cdn.xml

<?xml version="1.0" encoding="UTF-8"?>
<table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">
    <meta>
        <author>Marcel Duran</author>
        <description>Retrieves the list of CDNs or boolean values for a given list of hostnames or urls.</description>
        <sampleQuery>select * from {table}</sampleQuery>
        <sampleQuery>select * from {table} where hostname in ("l.yimg.com","s3.amazonws.com")</sampleQuery>
        <sampleQuery>select * from {table} where url in ("http://l.yimg.com/foo.png","http://s3.amazonws.com/bar.png")</sampleQuery>
    </meta>
    <bindings>
        <select itemPath="" produces="XML">
            <inputs>
               <key id="hostname" type="xs:string" paramType="variable" required="false"/>
               <key id="url" type="xs:string" paramType="variable" required="false"/>
            </inputs>
            <execute>
                <![CDATA[
                    var hostname, cdn, i, len,

                        cdns = [
                            /*********** BEGIN OF CDN LIST ***********/
                            /******* change from this point on *******/
                            {
                                name: 'Yahoo! yimg',
                                pattern: '^[\\d\\w\\.]+.yimg.com'
                            },
                            {
                                name: 'Yahoo! APIs',
                                pattern: '^yui.yahooapis.com'
                            },
                            {
                                name: 'Akamai',
                                pattern: '^a248.e.akamai.net'
                            },
                            {
                                name: 'Yahoo! Korea image server',
                                pattern: '^img(?:.(?:shopping|news|srch))?.yahoo.co.kr'
                            },
                            {
                                name: 'Yahoo! Korea ads server',
                                pattern: '^(?:adz|pimg).kr.yahoo.com'
                            },
                            {
                                name: 'Yahoo! Koread image server',
                                pattern: '^kr.img.n2o.yahoo.com'
                            },
                            {
                                name: 'Amazon AWS',
                                pattern: '^s3.amazonaws.com'
                            }
                            /** don't forget to remove last comma **/
                            /*** don't change from this point on ***/
                            /*********** END OF CDN LIST ***********/
                        ];

                    // for hostname or url returns true or false if they are cdn or not
                    if (hostname || url) {
                        data = <result/>;
                        data.@['cdn'] = false;
                        if (url) {
                            hostname = /^(?:[A-Za-z]+:\/{2,3})?([^\/\?&]+)/.exec(url),
                            hostname = hostname && hostname[1] || '';
                            data.@['url'] = url;
                        }
                        data.@['hostname'] = hostname;
                        for (i = 0, len = cdns.length; i < len; i += 1) {
                            cdn = cdns[i];
                            if (RegExp(cdn.pattern).test(hostname)) {
                                data.@['cdn'] = true;
                                data.@['name'] = cdn.name;
                                break;
                            }
                        }
                    // otherwise retunrs a list of cdn patterns
                    } else {
                        data = <cdns/>;
                        for each (cdn in cdns) {
                            data.cdns += <result name={cdn.name} pattern={cdn.pattern} />
                        }
                    }

                    response.object = data;
                ]]>
            </execute>
        </select>
    </bindings>
</table>