webshotr-v1.js

var config, crypto, logger, webshotr;

crypto = require("crypto");

logger = require('./loggerService').logger;

config = require('config');

webshotr = function(apiKey, secret) {
  var buildURL, hmacsha1, lib, prefix;
  prefix = config.shot_api.prefix;
  buildURL = function(url, width, height, full_page, delay, thumbnailSize) {
    var query, ret, token;
    if (typeof url !== "string") {
      throw new Error("url should be of type string (something like www.google.com)");
    }
    if (typeof url !== "string") {
      throw new Error("url is not valid");
    }
    if ((width != null) && typeof width !== "number") {
      throw new Error("width should be a number");
    }
    if ((height != null) && typeof height !== "number") {
      throw new Error("height should be a number");
    }
    if ((full_page != null) && typeof full_page !== "boolean") {
      throw new Error("full_page should be a boolean");
    }
    if ((delay != null) && typeof delay !== "number") {
      throw new Error("delay should be a number");
    }
    query = "url=" + url;
    if (width != null) {
      query += "&width=" + width;
    }
    if (height != null) {
      query += "&height=" + height;
    }
    if (full_page != null) {
      query += "&full_page=" + full_page;
    }
    if (delay != null) {
      query += "&delay=" + delay;
    }
    if (thumbnailSize != null) {
      query += "&thumbnailSize=" + thumbnailSize;
    }
    logger.info("apiKey: " + apiKey);
    logger.info("secret: " + secret);
    logger.info("query: " + query);
    token = hmacsha1(secret, query);
    logger.info("token: " + token);
    ret = prefix + apiKey + "/" + token + "/png/?" + query;
    logger.info('built url: ' + ret);
    return ret;
  };
  hmacsha1 = function(key, text) {
    logger.info("key: " + key);
    logger.info("text: " + text);
    return crypto.createHmac("sha1", key).update(text).digest("hex");
  };
  lib = {};
  lib.buildURL = buildURL;
  return lib;
};

module.exports = webshotr;