Code coverage report for src/Common/Url/Parser.js

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'use strict';
 
 
var _       = require("lodash"),
    Type    = require("../Type");
 
 
/// regular expression to get the baseUrl
var BaseUrlRegExStr = '^[a-z]+://[a-z.-]+(?::[0-9]+)?';
/// regular expression to get the protocol
var ProtocolRegExStr = '^([a-z]+)://';
 
 
 
var UrlParser = {
 
    /**
     * Normalize url
     *
     * @return{String} the current url
     */
    normalize: function(url) {
    
        if(!url) return "";
 
        /// replace all //// to a single slash
        url = url.replace(/\/+/g, "/");
        /// because previouly all // were replaced lets fix the protocol syntax (http://)
        url = url.replace(/:\//g, "://");
 
        return url;
 
    },
 
    /**
     * Test if the url is absolute
     * 
     * @return {Boolean}
     * 
     */
    isAbsolute: function(url){
 
        var regex = new RegExp(BaseUrlRegExStr, "i");
        return !! regex.exec(url);
 
    },
 
    /**
     * Gets the protocol of the url 
     * 
     * @param  {String} url
     * @return {String}
     */
    protocol: function(url){
 
        var regex = new RegExp(ProtocolRegExStr, "gi");
        var result = regex.exec(url);
        if(result) return result[1];
        
        return "";
 
    },
 
    /**
     * Returns the baseUrl for the given url
     * 
     * @param  {String} url
     * @return {String}
     */
    baseUrl: function(url){
 
        var regex = new RegExp(BaseUrlRegExStr, "i");
 
        var result = "",
            regexResult = regex.exec(url);
 
        if(regexResult){
            /// always add / at the end of baseUrl
            result = regexResult.shift() + "/";
        }
 
        return UrlParser.normalize(result);
 
    },
 
    /**
     * Get the path of the url
     * 
     * @param  {String} url
     * @return {String}
     */
    path: function(url){
 
        // sanitize input
        url = url || "";
 
        var baseUrl = UrlParser.baseUrl(url) || "";
 
        // remove the base url
        url = url.replace(baseUrl, "");
 
        // remove the last part of the url. this may be a "/"" or "filehandler"
        var urlParts = url.split("/");
        urlParts.pop();
        urlParts.push("");
        
        // join all
        url = urlParts.join("/");
 
        return UrlParser.normalize(url);
    },
 
    /**
     * Get the file name
     * 
     * @return {[type]} [description]
     * 
     */
    filename: function(url){
 
        // sanitize input
        url = url || "";
 
        var urlParts = url.split("/");
        
        var filename = urlParts.pop().replace(/\?.*$/, "");
        
        return filename;
 
    },
 
 
    /**
     * Gets the entire File Path
     * 
     * @param  {String} url
     * @return {String}
     */
    filepath: function(url){ 
 
        return UrlParser.normalize(
            UrlParser.baseUrl(url) + 
            UrlParser.path(url) + 
            UrlParser.filename(url));
 
    },
 
    /**
     * get's the query string part of the url
     *
     * @param{href} The full url or null to get the current
     * @param{separator} The url qs separator. Normally is ?
     * @return{String} The query string part of the url
     */
    queryString: function(href, separator) {
 
        href = href || "";
        separator = separator || '?';
 
        var hrefSplit = href.split(separator) || [];
        
        if(hrefSplit.length > 1){
            
            // query strin can be malformed like ?a=1&?b=2
            // we can fix this
            var qStringPart = hrefSplit.splice(1, hrefSplit.length-1);
            var qString = "";
            _.forEach(qStringPart, function(qs){
                qString += qs;
            });
 
            return qString;
        }
 
        return "";
    },
 
    /*
     * Parse query string from url
     *
     * @param{separator} The url qs separator. Normally is ?
     * @return An hash with all the query string key/value's
     */
    queryStringObj: function(href, separator) {
    
        href = href || "";
 
        var qString = UrlParser.queryString(href, separator),
            values = {};
 
        qString = decodeURI(qString || "");
        _.each(
            qString.split("&"),
            function(keyValue){
 
                // ignore if 
                if(!keyValue) return;
 
                var pair = keyValue.split("=");
                
                Eif(pair.length>1)
                    values[pair[0]] = pair[1];
                else
                    values[pair[0]] = true; // it's more easy to use on conditions
                    
 
            });
 
        return values;
    }
 
 
 
};
 
module.exports = UrlParser;