All files / lib/internal validators.js

100% Statements 266/266
100% Branches 102/102
100% Functions 9/9
100% Lines 266/266

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 26721x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 284625x 284625x 284625x 21x 109032x 109032x 109032x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 53203x 53203x 53203x 74x 5x 5x 69x 69x 53198x 53198x 53198x 53203x 21x 21x 21x 188517x 188517x 188305x 188517x 188517x 188517x 188517x 21x 21x 21x 21x 284490x 284490x 304x 239x 239x 303x 39x 39x 26x 26x 284490x 22x 22x 284490x 21x 21x 21x 66210x 156x 113x 113x 154x 21x 21x 156x 156x 156x 156x 66210x 10x 10x 21x 21x 7131349x 7131349x 7131349x 7131349x 21x 399909x 399909x 399909x 399909x 21x 21x 17775x 750x 750x 750x 750x 750x 750x 750x 21x 21x 85290x 85290x 85290x 85290x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 232433x 232433x 232433x 232433x 232433x 232433x 232381x 215x 232433x 266x 266x 21x 21x 21x 169333x 94x 94x 169333x 1x 1x 1x 21x 21x 7x 7x 7x 7x 2x 1x 1x 1x 1x 1x 1x 7x 21x 21x 56691x 20x 20x 20x 20x 21x 21x 1620x 1620x 1620x 1620x 1620x 7x 7x 7x 1620x 21x 21x 21x 335992x 335992x 335992x 335992x 335992x 335992x 230x 230x 335762x 335992x 21x 21x 747882x 747882x 21x 21x 21x 22925x 142x 142x 22925x 48x 48x 21x 21x 21x 901100x 901100x 21x 21x 21x 36x 36x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x  
'use strict';
 
const {
  ArrayIsArray,
  ArrayPrototypeIncludes,
  ArrayPrototypeJoin,
  ArrayPrototypeMap,
  NumberIsInteger,
  NumberMAX_SAFE_INTEGER,
  NumberMIN_SAFE_INTEGER,
  NumberParseInt,
  RegExpPrototypeTest,
  String,
  StringPrototypeToUpperCase,
  StringPrototypeTrim,
} = primordials;
 
const {
  hideStackFrames,
  codes: {
    ERR_SOCKET_BAD_PORT,
    ERR_INVALID_ARG_TYPE,
    ERR_INVALID_ARG_VALUE,
    ERR_OUT_OF_RANGE,
    ERR_UNKNOWN_SIGNAL,
    ERR_INVALID_CALLBACK,
  }
} = require('internal/errors');
const { normalizeEncoding } = require('internal/util');
const {
  isArrayBufferView
} = require('internal/util/types');
const { signals } = internalBinding('constants').os;
 
function isInt32(value) {
  return value === (value | 0);
}
 
function isUint32(value) {
  return value === (value >>> 0);
}
 
const octalReg = /^[0-7]+$/;
const modeDesc = 'must be a 32-bit unsigned integer or an octal string';
 
/**
 * Parse and validate values that will be converted into mode_t (the S_*
 * constants). Only valid numbers and octal strings are allowed. They could be
 * converted to 32-bit unsigned integers or non-negative signed integers in the
 * C++ land, but any value higher than 0o777 will result in platform-specific
 * behaviors.
 *
 * @param {*} value Values to be validated
 * @param {string} name Name of the argument
 * @param {number} [def] If specified, will be returned for invalid values
 * @returns {number}
 */
function parseFileMode(value, name, def) {
  value ??= def;
  if (typeof value === 'string') {
    if (!RegExpPrototypeTest(octalReg, value)) {
      throw new ERR_INVALID_ARG_VALUE(name, value, modeDesc);
    }
    value = NumberParseInt(value, 8);
  }
 
  validateInt32(value, name, 0, 2 ** 32 - 1);
  return value;
}
 
const validateInteger = hideStackFrames(
  (value, name, min = NumberMIN_SAFE_INTEGER, max = NumberMAX_SAFE_INTEGER) => {
    if (typeof value !== 'number')
      throw new ERR_INVALID_ARG_TYPE(name, 'number', value);
    if (!NumberIsInteger(value))
      throw new ERR_OUT_OF_RANGE(name, 'an integer', value);
    if (value < min || value > max)
      throw new ERR_OUT_OF_RANGE(name, `>= ${min} && <= ${max}`, value);
  }
);
 
const validateInt32 = hideStackFrames(
  (value, name, min = -2147483648, max = 2147483647) => {
    // The defaults for min and max correspond to the limits of 32-bit integers.
    if (!isInt32(value)) {
      if (typeof value !== 'number') {
        throw new ERR_INVALID_ARG_TYPE(name, 'number', value);
      }
      if (!NumberIsInteger(value)) {
        throw new ERR_OUT_OF_RANGE(name, 'an integer', value);
      }
      throw new ERR_OUT_OF_RANGE(name, `>= ${min} && <= ${max}`, value);
    }
    if (value < min || value > max) {
      throw new ERR_OUT_OF_RANGE(name, `>= ${min} && <= ${max}`, value);
    }
  }
);
 
const validateUint32 = hideStackFrames((value, name, positive) => {
  if (!isUint32(value)) {
    if (typeof value !== 'number') {
      throw new ERR_INVALID_ARG_TYPE(name, 'number', value);
    }
    if (!NumberIsInteger(value)) {
      throw new ERR_OUT_OF_RANGE(name, 'an integer', value);
    }
    const min = positive ? 1 : 0;
    // 2 ** 32 === 4294967296
    throw new ERR_OUT_OF_RANGE(name, `>= ${min} && < 4294967296`, value);
  }
  if (positive && value === 0) {
    throw new ERR_OUT_OF_RANGE(name, '>= 1 && < 4294967296', value);
  }
});
 
function validateString(value, name) {
  if (typeof value !== 'string')
    throw new ERR_INVALID_ARG_TYPE(name, 'string', value);
}
 
function validateNumber(value, name) {
  if (typeof value !== 'number')
    throw new ERR_INVALID_ARG_TYPE(name, 'number', value);
}
 
const validateOneOf = hideStackFrames((value, name, oneOf) => {
  if (!ArrayPrototypeIncludes(oneOf, value)) {
    const allowed = ArrayPrototypeJoin(
      ArrayPrototypeMap(oneOf, (v) =>
        (typeof v === 'string' ? `'${v}'` : String(v))),
      ', ');
    const reason = 'must be one of: ' + allowed;
    throw new ERR_INVALID_ARG_VALUE(name, value, reason);
  }
});
 
function validateBoolean(value, name) {
  if (typeof value !== 'boolean')
    throw new ERR_INVALID_ARG_TYPE(name, 'boolean', value);
}
 
/**
 * @param {unknown} value
 * @param {string} name
 * @param {{
 *   allowArray?: boolean,
 *   allowFunction?: boolean,
 *   nullable?: boolean
 * }} [options]
 */
const validateObject = hideStackFrames(
  (value, name, options) => {
    const useDefaultOptions = options == null;
    const allowArray = useDefaultOptions ? false : options.allowArray;
    const allowFunction = useDefaultOptions ? false : options.allowFunction;
    const nullable = useDefaultOptions ? false : options.nullable;
    if ((!nullable && value === null) ||
        (!allowArray && ArrayIsArray(value)) ||
        (typeof value !== 'object' && (
          !allowFunction || typeof value !== 'function'
        ))) {
      throw new ERR_INVALID_ARG_TYPE(name, 'Object', value);
    }
  });
 
const validateArray = hideStackFrames((value, name, minLength = 0) => {
  if (!ArrayIsArray(value)) {
    throw new ERR_INVALID_ARG_TYPE(name, 'Array', value);
  }
  if (value.length < minLength) {
    const reason = `must be longer than ${minLength}`;
    throw new ERR_INVALID_ARG_VALUE(name, value, reason);
  }
});
 
function validateSignalName(signal, name = 'signal') {
  validateString(signal, name);
 
  if (signals[signal] === undefined) {
    if (signals[StringPrototypeToUpperCase(signal)] !== undefined) {
      throw new ERR_UNKNOWN_SIGNAL(signal +
                                   ' (signals must use all capital letters)');
    }
 
    throw new ERR_UNKNOWN_SIGNAL(signal);
  }
}
 
const validateBuffer = hideStackFrames((buffer, name = 'buffer') => {
  if (!isArrayBufferView(buffer)) {
    throw new ERR_INVALID_ARG_TYPE(name,
                                   ['Buffer', 'TypedArray', 'DataView'],
                                   buffer);
  }
});
 
function validateEncoding(data, encoding) {
  const normalizedEncoding = normalizeEncoding(encoding);
  const length = data.length;
 
  if (normalizedEncoding === 'hex' && length % 2 !== 0) {
    throw new ERR_INVALID_ARG_VALUE('encoding', encoding,
                                    `is invalid for data of length ${length}`);
  }
}
 
// Check that the port number is not NaN when coerced to a number,
// is an integer and that it falls within the legal range of port numbers.
function validatePort(port, name = 'Port', allowZero = true) {
  if ((typeof port !== 'number' && typeof port !== 'string') ||
      (typeof port === 'string' && StringPrototypeTrim(port).length === 0) ||
      +port !== (+port >>> 0) ||
      port > 0xFFFF ||
      (port === 0 && !allowZero)) {
    throw new ERR_SOCKET_BAD_PORT(name, port, allowZero);
  }
  return port | 0;
}
 
const validateCallback = hideStackFrames((callback) => {
  if (typeof callback !== 'function')
    throw new ERR_INVALID_CALLBACK(callback);
});
 
const validateAbortSignal = hideStackFrames((signal, name) => {
  if (signal !== undefined &&
      (signal === null ||
       typeof signal !== 'object' ||
       !('aborted' in signal))) {
    throw new ERR_INVALID_ARG_TYPE(name, 'AbortSignal', signal);
  }
});
 
const validateFunction = hideStackFrames((value, name) => {
  if (typeof value !== 'function')
    throw new ERR_INVALID_ARG_TYPE(name, 'Function', value);
});
 
const validateUndefined = hideStackFrames((value, name) => {
  if (value !== undefined)
    throw new ERR_INVALID_ARG_TYPE(name, 'undefined', value);
});
 
module.exports = {
  isInt32,
  isUint32,
  parseFileMode,
  validateArray,
  validateBoolean,
  validateBuffer,
  validateEncoding,
  validateFunction,
  validateInt32,
  validateInteger,
  validateNumber,
  validateObject,
  validateOneOf,
  validatePort,
  validateSignalName,
  validateString,
  validateUint32,
  validateUndefined,
  validateCallback,
  validateAbortSignal,
};