All files / lib/internal/streams destroy.js

97.52% Statements 355/364
96.47% Branches 137/142
100% Functions 17/17
97.52% Lines 355/364

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 36521x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 21x 202446x 202446x 4418x 4418x 4418x 4418x 1426x 1426x 4418x 2825x 2825x 4418x 202446x 21x 21x 21x 114882x 114882x 114882x 114882x 114882x 114882x 114882x 13651x 2x 2x 13651x 13651x 13651x 101231x 101231x 101231x 101231x 101231x 101231x 102668x 81541x 81541x 102686x 100925x 100925x 101231x 101231x 114882x 123x 123x 123x 114867x 101108x 101108x 101231x 101231x 114882x 21x 101231x 101231x 101231x 101231x 101215x     101215x 101215x 101215x 101215x 101215x 101215x 101215x 101215x 81539x 81539x 101215x 100911x 100911x 101215x 101215x 7x 7x 101215x 101215x 1568x 101119x 99647x 99647x 101215x 101231x 101231x 101231x 2x 2x 2x 2x 2x 1x 2x 2x 1x 2x 2x 2x 101231x     101231x 21x 1568x 1568x 1568x 1568x 21x 101138x 101138x 101138x 101138x 101138x 81462x 81462x 101138x 100837x 100837x 101138x 101138x 65007x 65007x 101138x 21x 1587x 1587x 1587x 1587x 1587x 3x 3x 1584x 1584x 1485x 1485x 1584x 1495x 1495x 1584x 1584x 1587x 21x 43095x 43095x 43095x 43095x 43095x 43093x 43093x 43093x 43093x 43093x 43093x 43093x 43093x 43093x 43093x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 43095x 21x 145x 145x 145x 145x 145x 145x 145x 145x 145x 145x 145x 21x 21x 124x 145x 145x 19x 19x 19x 19x 19x 11x 11x 19x 11x 11x 19x 7x 19x 12x 12x 19x 145x 21x 194808x 194808x 192472x 192472x 2336x 2336x 2336x 2336x 194788x 2257x 2257x 194808x 84x 84x 2336x 2336x 2336x 2947x 5x 5x 5x 2331x 2331x 194808x 21x 2330x 2330x 2330x 2330x 2331x 4x 4x 4x 2327x 2327x 2327x 2327x 2331x 2331x 2331x 2249x 2249x 2329x 82x 82x 2327x 2331x 123x 2328x 14x 2203x 2190x 2190x 2331x 2330x 2330x 2330x 2330x 3x 3x 3x 3x 3x 2x 3x 3x 1x 3x 3x 3x 2330x     2330x 21x 2190x 2190x 2190x 21x 170x 170x 170x 21x 1x 1x 1x 21x 1x 1x 1x 1x 21x 21x 245x 245x 158x 158x 87x 245x 28x 28x 87x 87x 178x 2x 2x 178x   85x 2x 85x 79x 83x 3x 3x 3x 1x 1x     87x 178x 11x 11x 245x 21x 21x 21x 21x 21x 21x 21x 21x  
'use strict';
 
const {
  aggregateTwoErrors,
  codes: {
    ERR_MULTIPLE_CALLBACK,
  },
  AbortError,
} = require('internal/errors');
const {
  Symbol,
} = primordials;
const {
  kDestroyed,
  isDestroyed,
  isFinished,
  isServerRequest
} = require('internal/streams/utils');
 
const kDestroy = Symbol('kDestroy');
const kConstruct = Symbol('kConstruct');
 
function checkError(err, w, r) {
  if (err) {
    // Avoid V8 leak, https://github.com/nodejs/node/pull/34103#issuecomment-652002364
    err.stack; // eslint-disable-line no-unused-expressions
 
    if (w && !w.errored) {
      w.errored = err;
    }
    if (r && !r.errored) {
      r.errored = err;
    }
  }
}
 
// Backwards compat. cb() is undocumented and unused in core but
// unfortunately might be used by modules.
function destroy(err, cb) {
  const r = this._readableState;
  const w = this._writableState;
  // With duplex streams we use the writable side for state.
  const s = w || r;
 
  if ((w && w.destroyed) || (r && r.destroyed)) {
    if (typeof cb === 'function') {
      cb();
    }
 
    return this;
  }
 
 
  // We set destroyed to true before firing error callbacks in order
  // to make it re-entrance safe in case destroy() is called within callbacks
  checkError(err, w, r);
 
  if (w) {
    w.destroyed = true;
  }
  if (r) {
    r.destroyed = true;
  }
 
  // If still constructing then defer calling _destroy.
  if (!s.constructed) {
    this.once(kDestroy, function(er) {
      _destroy(this, aggregateTwoErrors(er, err), cb);
    });
  } else {
    _destroy(this, err, cb);
  }
 
  return this;
}
 
function _destroy(self, err, cb) {
  let called = false;
 
  function onDestroy(err) {
    if (called) {
      return;
    }
    called = true;
 
    const r = self._readableState;
    const w = self._writableState;
 
    checkError(err, w, r);
 
    if (w) {
      w.closed = true;
    }
    if (r) {
      r.closed = true;
    }
 
    if (typeof cb === 'function') {
      cb(err);
    }
 
    if (err) {
      process.nextTick(emitErrorCloseNT, self, err);
    } else {
      process.nextTick(emitCloseNT, self);
    }
  }
  try {
    const result = self._destroy(err || null, onDestroy);
    if (result != null) {
      const then = result.then;
      if (typeof then === 'function') {
        then.call(
          result,
          function() {
            process.nextTick(onDestroy, null);
          },
          function(err) {
            process.nextTick(onDestroy, err);
          });
      }
    }
  } catch (err) {
    onDestroy(err);
  }
}
 
function emitErrorCloseNT(self, err) {
  emitErrorNT(self, err);
  emitCloseNT(self);
}
 
function emitCloseNT(self) {
  const r = self._readableState;
  const w = self._writableState;
 
  if (w) {
    w.closeEmitted = true;
  }
  if (r) {
    r.closeEmitted = true;
  }
 
  if ((w && w.emitClose) || (r && r.emitClose)) {
    self.emit('close');
  }
}
 
function emitErrorNT(self, err) {
  const r = self._readableState;
  const w = self._writableState;
 
  if ((w && w.errorEmitted) || (r && r.errorEmitted)) {
    return;
  }
 
  if (w) {
    w.errorEmitted = true;
  }
  if (r) {
    r.errorEmitted = true;
  }
 
  self.emit('error', err);
}
 
function undestroy() {
  const r = this._readableState;
  const w = this._writableState;
 
  if (r) {
    r.constructed = true;
    r.closed = false;
    r.closeEmitted = false;
    r.destroyed = false;
    r.errored = null;
    r.errorEmitted = false;
    r.reading = false;
    r.ended = r.readable === false;
    r.endEmitted = r.readable === false;
  }
 
  if (w) {
    w.constructed = true;
    w.destroyed = false;
    w.closed = false;
    w.closeEmitted = false;
    w.errored = null;
    w.errorEmitted = false;
    w.finalCalled = false;
    w.prefinished = false;
    w.ended = w.writable === false;
    w.ending = w.writable === false;
    w.finished = w.writable === false;
  }
}
 
function errorOrDestroy(stream, err, sync) {
  // We have tests that rely on errors being emitted
  // in the same tick, so changing this is semver major.
  // For now when you opt-in to autoDestroy we allow
  // the error to be emitted nextTick. In a future
  // semver major update we should change the default to this.
 
  const r = stream._readableState;
  const w = stream._writableState;
 
  if ((w && w.destroyed) || (r && r.destroyed)) {
    return this;
  }
 
  if ((r && r.autoDestroy) || (w && w.autoDestroy))
    stream.destroy(err);
  else if (err) {
    // Avoid V8 leak, https://github.com/nodejs/node/pull/34103#issuecomment-652002364
    err.stack; // eslint-disable-line no-unused-expressions
 
    if (w && !w.errored) {
      w.errored = err;
    }
    if (r && !r.errored) {
      r.errored = err;
    }
    if (sync) {
      process.nextTick(emitErrorNT, stream, err);
    } else {
      emitErrorNT(stream, err);
    }
  }
}
 
function construct(stream, cb) {
  if (typeof stream._construct !== 'function') {
    return;
  }
 
  const r = stream._readableState;
  const w = stream._writableState;
 
  if (r) {
    r.constructed = false;
  }
  if (w) {
    w.constructed = false;
  }
 
  stream.once(kConstruct, cb);
 
  if (stream.listenerCount(kConstruct) > 1) {
    // Duplex
    return;
  }
 
  process.nextTick(constructNT, stream);
}
 
function constructNT(stream) {
  let called = false;
 
  function onConstruct(err) {
    if (called) {
      errorOrDestroy(stream, err ?? new ERR_MULTIPLE_CALLBACK());
      return;
    }
    called = true;
 
    const r = stream._readableState;
    const w = stream._writableState;
    const s = w || r;
 
    if (r) {
      r.constructed = true;
    }
    if (w) {
      w.constructed = true;
    }
 
    if (s.destroyed) {
      stream.emit(kDestroy, err);
    } else if (err) {
      errorOrDestroy(stream, err, true);
    } else {
      process.nextTick(emitConstructNT, stream);
    }
  }
 
  try {
    const result = stream._construct(onConstruct);
    if (result != null) {
      const then = result.then;
      if (typeof then === 'function') {
        then.call(
          result,
          function() {
            process.nextTick(onConstruct, null);
          },
          function(err) {
            process.nextTick(onConstruct, err);
          });
      }
    }
  } catch (err) {
    onConstruct(err);
  }
}
 
function emitConstructNT(stream) {
  stream.emit(kConstruct);
}
 
function isRequest(stream) {
  return stream && stream.setHeader && typeof stream.abort === 'function';
}
 
function emitCloseLegacy(stream) {
  stream.emit('close');
}
 
function emitErrorCloseLegacy(stream, err) {
  stream.emit('error', err);
  process.nextTick(emitCloseLegacy, stream);
}
 
// Normalize destroy for legacy.
function destroyer(stream, err) {
  if (!stream || isDestroyed(stream)) {
    return;
  }
 
  if (!err && !isFinished(stream)) {
    err = new AbortError();
  }
 
  // TODO: Remove isRequest branches.
  if (isServerRequest(stream)) {
    stream.socket = null;
    stream.destroy(err);
  } else if (isRequest(stream)) {
    stream.abort();
  } else if (isRequest(stream.req)) {
    stream.req.abort();
  } else if (typeof stream.destroy === 'function') {
    stream.destroy(err);
  } else if (typeof stream.close === 'function') {
    // TODO: Don't lose err?
    stream.close();
  } else if (err) {
    process.nextTick(emitErrorCloseLegacy, stream);
  } else {
    process.nextTick(emitCloseLegacy, stream);
  }
 
  if (!stream.destroyed) {
    stream[kDestroyed] = true;
  }
}
 
module.exports = {
  construct,
  destroyer,
  destroy,
  undestroy,
  errorOrDestroy
};