Gallery2 Album to HiDPI <img>s

albumParser.js

(function (albumID, $) {
    'use strict';

    $.extend({
        interpolate: function (s, data) {
            var variable;
            for (variable in data) {
                if (data.hasOwnProperty(variable)) {
                    s = s.replace(new RegExp('{' + variable + '}', 'g'), data[variable]);
                }
            }

            return s;
        }
    });

    function handleGallery2Response(data) {
        var lines = data.split('\n'),
            pattern = /^image\.(.+)\.(\d+)$/,
            template = '<a href="/gallery2/d/{name}-2/{title}" title="{description}" rel="lightbox[g2image]"><img src="/gallery2/d/{resized.2.name}-2/{title}" srcset="/gallery2/d/{resized.2.name}-2/{title} 1x, /gallery2/d/{resized.1.name}-2/{title} 2x" alt="{caption}" width="{resized.2.width}" height="{resized.2.height}"/></a>',
            images = [];

        $.each(lines, function () {
            var keyVal = this.split('='),
                parsedKey,
                fieldName,
                imageIndex,
                image;

            if (pattern.test(keyVal[0])) {
                parsedKey = pattern.exec(keyVal[0]);
                fieldName = parsedKey[1];
                imageIndex = parsedKey[2] - 1;

                image = images[imageIndex] || {};

                image[fieldName] = keyVal[1];

                images[imageIndex] = image;
            }
        });

        $.each(images, function (i) {
            if (this['extrafield.Description']) {
                this.description = this['extrafield.Description'];
            } else {
                this.description = this.caption;
            }

            if (!this['resized.1.name']) {
                console.warn($.interpolate('{title} with ID {name} is missing HiDPI resize', this));
            }

            if (!this['resized.2.name']) {
                console.warn($.interpolate('{title} with ID {name} is missing default resize', this));
            }

            images[i] = this;
        });

        $.each(images, function () {
            console.log($.interpolate(template, this));
        });
    }

    $.post('/gallery2/main.php?g2_controller=remote:GalleryRemote', {
        'g2_form[cmd]': 'fetch-album-images',
        'g2_form[protocol_version]': '2.4',
        'g2_form[set_albumName]': albumID,
        'g2_form[albums_too]': 'no',
        'g2_form[random]': 'no',
        'g2_form[extrafields]': 'yes',
        'g2_form[all_sizes]': 'yes'
    }, handleGallery2Response);
}(6985, jQuery));

Gallery2 has a terrible HTTP API. /sigh