identifi-lib/es/util.js

Basic tools for reading and writing Identifi messages and identities.

/*eslint no-useless-escape: "off", camelcase: "off" */

import createHash from 'create-hash';

var isNode = false;
try {
  isNode = Object.prototype.toString.call(global.process) === '[object process]';
} catch (e) {
  null;
}

export default {
  getHash: function getHash(str) {
    var format = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'base64';

    if (!str) {
      return undefined;
    }
    var hash = createHash('sha256');
    hash.update(str);
    return hash.digest(format);
  },

  timeoutPromise: function timeoutPromise(promise, timeout) {
    return Promise.race([promise, new Promise(function (resolve) {
      setTimeout(function () {
        resolve();
      }, timeout);
    })]);
  },
  injectCss: function injectCss() {
    var elementId = 'identifiStyle';
    if (document.getElementById(elementId)) {
      return;
    }
    var sheet = document.createElement('style');
    sheet.id = elementId;
    sheet.innerHTML = '\n      .identifi-identicon * {\n        box-sizing: border-box;\n      }\n\n      .identifi-identicon {\n        vertical-align: middle;\n        margin: auto;\n        border-radius: 50%;\n        text-align: center;\n        display: inline-block;\n        position: relative;\n        margin: auto;\n        max-width: 100%;\n      }\n\n      .identifi-distance {\n        z-index: 2;\n        position: absolute;\n        left:0%;\n        top:2px;\n        width: 100%;\n        text-align: right;\n        color: #fff;\n        text-shadow: 0 0 1px #000;\n        font-size: 75%;\n        line-height: 75%;\n        font-weight: bold;\n      }\n\n      .identifi-pie {\n        border-radius: 50%;\n        position: absolute;\n        top: 0;\n        left: 0;\n        box-shadow: 0px 0px 0px 0px #82FF84;\n        padding-bottom: 100%;\n        max-width: 100%;\n        -webkit-transition: all 0.2s ease-in-out;\n        -moz-transition: all 0.2s ease-in-out;\n        transition: all 0.2s ease-in-out;\n      }\n\n      .identifi-card {\n        padding: 10px;\n        background-color: #f7f7f7;\n        color: #777;\n        border: 1px solid #ddd;\n        display: flex;\n        flex-direction: row;\n        overflow: hidden;\n      }\n\n      .identifi-card a {\n        -webkit-transition: color 150ms;\n        transition: color 150ms;\n        text-decoration: none;\n        color: #337ab7;\n      }\n\n      .identifi-card a:hover, .identifi-card a:active {\n        text-decoration: underline;\n        color: #23527c;\n      }\n\n      .identifi-pos {\n        color: #3c763d;\n      }\n\n      .identifi-neg {\n        color: #a94442;\n      }\n\n      .identifi-identicon img {\n        position: absolute;\n        top: 0;\n        left: 0;\n        max-width: 100%;\n        border-radius: 50%;\n        border-color: transparent;\n        border-style: solid;\n      }';
    document.body.appendChild(sheet);
  },


  isNode: isNode
};