z_schema.js

'use strict';

var ip = require('ip');
var bs58check = require('bs58check');

function schema(network){
  this.z_schema = require('z-schema');

  this.z_schema.registerFormat('hex', function (str) {
    try {
      new Buffer(str, 'hex');
    } catch (e) {
      return false;
    }

    return true;
  });

  this.z_schema.registerFormat('publicKey', function (str) {
    if (str.length === 0) {
      return true;
    }

    try {
      var publicKey = new Buffer(str, 'hex');
      return publicKey.length === 33;
    } catch (e) {
      return false;
    }
  });

  this.z_schema.registerFormat('address', function (str) {
    if (str.length === 0) {
      return true;
    }

    var version = network.pubKeyHash;
  	try {
  		var decode = bs58check.decode(str);
  		return decode[0] == version;
  	} catch(e){
  		return false;
  	}
  });


  this.z_schema.registerFormat('vendorField', function (str) {
    if (str.length === 0) {
      return true;
    }

    try {
      var vendorField = new Buffer(str);

      return vendorField.length < 65;
    } catch (e) {
      return false;
    }
  });

  this.z_schema.registerFormat('csv', function (str) {
    try {
      var a = str.split(',');
      if (a.length > 0 && a.length <= 1000) {
        return true;
      } else {
        return false;
      }
    } catch (e) {
      return false;
    }
  });

  this.z_schema.registerFormat('signature', function (str) {
    if (str.length === 0) {
      return true;
    }

    try {
      var signature = new Buffer(str, 'hex');
      return signature.length < 73;
    } catch (e) {
      return false;
    }
  });

  this.z_schema.registerFormat('queryList', function (obj) {
    obj.limit = 100;
    return true;
  });

  this.z_schema.registerFormat('delegatesList', function (obj) {
    obj.limit = 51;
    return true;
  });

  this.z_schema.registerFormat('parsedInt', function (value) {
    /*jslint eqeq: true*/
    if (isNaN(value) || parseInt(value) != value || isNaN(parseInt(value, 10))) {
      return false;
    }

    value = parseInt(value);
    return true;
  });

  this.z_schema.registerFormat('ip', function (str) {
    return ip.isV4Format(str);
  });
}



// var registeredFormats = z_schema.getRegisteredFormats();
// console.log(registeredFormats);

// Exports
module.exports = schema;