src/configuration/camoconfig.js

   1 const SPECIALCHARS = /([\\.?+*$^|()[\]{}])/g;
   2
   3 class CamoConfig {
   4     constructor(config = { camo: { enabled: false } }) {
   5         this.config = config.camo;
   6         if (this.config.server) {
   7             this.config.server = this.config.server.replace(/\/+$/, '');
   8         }
   9         this.validate();
  10     }
  11
  12     validate() {
  13         if (this.config.encoding
  14                 && !~['url', 'hex'].indexOf(this.config.encoding)) {
  15             throw new Error(`Value for key 'encoding' must be either 'url' or 'hex', not '${this.config.encoding}'`);
  16         }
  17     }
  18
  19     isEnabled() {
  20         return this.config.enabled;
  21     }
  22
  23     getKey() {
  24         return this.config.key;
  25     }
  26
  27     getServer() {
  28         return this.config.server;
  29     }
  30
  31     getWhitelistedDomains() {
  32         return this.config['whitelisted-domains'] || [];
  33     }
  34
  35     getWhitelistedDomainsRegexp() {
  36         const domains = this.getWhitelistedDomains()
  37                 .map(d => '\\.' + d.replace(SPECIALCHARS, '\\$1') + '$');
  38         if (domains.length === 0) {
  39             // If no whitelist, match nothing
  40             return new RegExp('$^');
  41         }
  42
  43         return new RegExp(domains.join('|'), 'i');
  44     }
  45
  46     getEncoding() {
  47         return this.config.encoding || 'url';
  48     }
  49 }
  50
  51 export { CamoConfig };