All files / lib/internal validators.js

100% Statements 266/266
100% Branches 94/94
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 26720x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 285257x 285257x 285257x 20x 124926x 124926x 124926x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 52960x 52960x 52960x 74x 5x 5x 74x 74x 52960x 52960x 52960x 52960x 20x 20x 20x 189496x 189496x 189276x 189496x 189496x 189496x 189496x 20x 20x 20x 20x 285124x 285124x 320x 247x 247x 319x 39x 39x 320x 320x 285124x 26x 26x 285124x 20x 20x 20x 82887x 150x 109x 109x 148x 21x 21x 150x 150x 150x 150x 82887x 8x 8x 20x 20x 2162625x 2162625x 2162625x 2162625x 20x 406293x 406293x 406293x 406293x 20x 20x 18305x 750x 750x 750x 750x 750x 750x 750x 20x 20x 88427x 88427x 88427x 88427x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 261778x 261778x 261778x 261778x 261778x 261778x 261722x 239x 261778x 294x 294x 20x 20x 20x 171341x 99x 99x 171341x 1x 1x 1x 20x 20x 7x 7x 7x 7x 2x 1x 1x 1x 1x 1x 1x 7x 20x 20x 56935x 20x 20x 20x 20x 20x 20x 1678x 1678x 1678x 1678x 1678x 7x 7x 7x 1678x 20x 20x 20x 353104x 353104x 353104x 353104x 353104x 353104x 230x 230x 353104x 353104x 20x 20x 23736x 183x 183x 23736x 58x 58x 20x 20x 20x 1712590x 1712590x 20x 20x 20x 9008x 9008x 20x 20x 20x 36x 36x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x  
'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,
  }
} = require('internal/errors');
const { normalizeEncoding } = require('internal/util');
const {
  isAsyncFunction,
  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 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 validatePlainFunction = hideStackFrames((value, name) => {
  if (typeof value !== 'function' || isAsyncFunction(value))
    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,
  validatePlainFunction,
  validatePort,
  validateSignalName,
  validateString,
  validateUint32,
  validateUndefined,
  validateAbortSignal,
};