switch to vuepress

1 files changed, 108 insertions, 0 deletions

diff --git a/node_modules/randomfill/browser.js b/node_modules/randomfill/browser.js
new file mode 100644
index 00000000..ce34a693
--- /dev/null
+++ b/node_modules/randomfill/browser.js
@@ -0,0 +1,108 @@
+'use strict'
+
+function oldBrowser () {
+  throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
+}
+var safeBuffer = require('safe-buffer')
+var randombytes = require('randombytes')
+var Buffer = safeBuffer.Buffer
+var kBufferMaxLength = safeBuffer.kMaxLength
+var crypto = global.crypto || global.msCrypto
+var kMaxUint32 = Math.pow(2, 32) - 1
+function assertOffset (offset, length) {
+  if (typeof offset !== 'number' || offset !== offset) { // eslint-disable-line no-self-compare
+    throw new TypeError('offset must be a number')
+  }
+
+  if (offset > kMaxUint32 || offset < 0) {
+    throw new TypeError('offset must be a uint32')
+  }
+
+  if (offset > kBufferMaxLength || offset > length) {
+    throw new RangeError('offset out of range')
+  }
+}
+
+function assertSize (size, offset, length) {
+  if (typeof size !== 'number' || size !== size) { // eslint-disable-line no-self-compare
+    throw new TypeError('size must be a number')
+  }
+
+  if (size > kMaxUint32 || size < 0) {
+    throw new TypeError('size must be a uint32')
+  }
+
+  if (size + offset > length || size > kBufferMaxLength) {
+    throw new RangeError('buffer too small')
+  }
+}
+if ((crypto && crypto.getRandomValues) || !process.browser) {
+  exports.randomFill = randomFill
+  exports.randomFillSync = randomFillSync
+} else {
+  exports.randomFill = oldBrowser
+  exports.randomFillSync = oldBrowser
+}
+function randomFill (buf, offset, size, cb) {
+  if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) {
+    throw new TypeError('"buf" argument must be a Buffer or Uint8Array')
+  }
+
+  if (typeof offset === 'function') {
+    cb = offset
+    offset = 0
+    size = buf.length
+  } else if (typeof size === 'function') {
+    cb = size
+    size = buf.length - offset
+  } else if (typeof cb !== 'function') {
+    throw new TypeError('"cb" argument must be a function')
+  }
+  assertOffset(offset, buf.length)
+  assertSize(size, offset, buf.length)
+  return actualFill(buf, offset, size, cb)
+}
+
+function actualFill (buf, offset, size, cb) {
+  if (process.browser) {
+    var ourBuf = buf.buffer
+    var uint = new Uint8Array(ourBuf, offset, size)
+    crypto.getRandomValues(uint)
+    if (cb) {
+      process.nextTick(function () {
+        cb(null, buf)
+      })
+      return
+    }
+    return buf
+  }
+  if (cb) {
+    randombytes(size, function (err, bytes) {
+      if (err) {
+        return cb(err)
+      }
+      bytes.copy(buf, offset)
+      cb(null, buf)
+    })
+    return
+  }
+  var bytes = randombytes(size)
+  bytes.copy(buf, offset)
+  return buf
+}
+function randomFillSync (buf, offset, size) {
+  if (typeof offset === 'undefined') {
+    offset = 0
+  }
+  if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) {
+    throw new TypeError('"buf" argument must be a Buffer or Uint8Array')
+  }
+
+  assertOffset(offset, buf.length)
+
+  if (size === undefined) size = buf.length - offset
+
+  assertSize(size, offset, buf.length)
+
+  return actualFill(buf, offset, size)
+}