Fix license issues

[sdnc/oam.git] / dgbuilder / dgeflows / node_modules / serve-static / node_modules / send / node_modules / etag / index.js

diff --git a/dgbuilder/dgeflows/node_modules/serve-static/node_modules/send/node_modules/etag/index.js b/dgbuilder/dgeflows/node_modules/serve-static/node_modules/send/node_modules/etag/index.js
deleted file mode 100644 (file)
index bb05eb7..0000000
--- a/dgbuilder/dgeflows/node_modules/serve-static/node_modules/send/node_modules/etag/index.js
+++ /dev/null
@@ -1,171 +0,0 @@
-/*!
- * etag
- * Copyright(c) 2014 Douglas Christopher Wilson
- * MIT Licensed
- */
-
-/**
- * Module exports.
- */
-
-module.exports = etag
-
-/**
- * Module dependencies.
- */
-
-var crc = require('crc').crc32
-var crypto = require('crypto')
-var Stats = require('fs').Stats
-
-/**
- * Module variables.
- */
-
-var crc32threshold = 1000 // 1KB
-var NULL = new Buffer([0])
-var toString = Object.prototype.toString
-
-/**
- * Create a simple ETag.
- *
- * @param {string|Buffer|Stats} entity
- * @param {object} [options]
- * @param {boolean} [options.weak]
- * @return {String}
- * @api public
- */
-
-function etag(entity, options) {
-  if (entity == null) {
-    throw new TypeError('argument entity is required')
-  }
-
-  var isStats = isstats(entity)
-  var weak = options && typeof options.weak === 'boolean'
-    ? options.weak
-    : isStats
-
-  // support fs.Stats object
-  if (isStats) {
-    return stattag(entity, weak)
-  }
-
-  if (typeof entity !== 'string' && !Buffer.isBuffer(entity)) {
-    throw new TypeError('argument entity must be string, Buffer, or fs.Stats')
-  }
-
-  var hash = weak
-    ? weakhash(entity)
-    : stronghash(entity)
-
-  return weak
-    ? 'W/"' + hash + '"'
-    : '"' + hash + '"'
-}
-
-/**
- * Determine if object is a Stats object.
- *
- * @param {object} obj
- * @return {boolean}
- * @api private
- */
-
-function isstats(obj) {
-  // not even an object
-  if (obj === null || typeof obj !== 'object') {
-    return false
-  }
-
-  // genuine fs.Stats
-  if (obj instanceof Stats) {
-    return true
-  }
-
-  // quack quack
-  return 'atime' in obj && toString.call(obj.atime) === '[object Date]'
-    && 'ctime' in obj && toString.call(obj.ctime) === '[object Date]'
-    && 'mtime' in obj && toString.call(obj.mtime) === '[object Date]'
-    && 'ino' in obj && typeof obj.ino === 'number'
-    && 'size' in obj && typeof obj.size === 'number'
-}
-
-/**
- * Generate a tag for a stat.
- *
- * @param {Buffer} entity
- * @return {String}
- * @api private
- */
-
-function stattag(stat, weak) {
-  var mtime = stat.mtime.toISOString()
-  var size = stat.size.toString(16)
-
-  if (weak) {
-    return 'W/"' + size + '-' + crc(mtime) + '"'
-  }
-
-  var hash = crypto
-    .createHash('md5')
-    .update('file', 'utf8')
-    .update(NULL)
-    .update(size, 'utf8')
-    .update(NULL)
-    .update(mtime, 'utf8')
-    .digest('base64')
-
-  return '"' + hash + '"'
-}
-
-/**
- * Generate a strong hash.
- *
- * @param {Buffer} entity
- * @return {String}
- * @api private
- */
-
-function stronghash(entity) {
-  if (entity.length === 0) {
-    // fast-path empty
-    return '1B2M2Y8AsgTpgAmY7PhCfg=='
-  }
-
-  return crypto
-    .createHash('md5')
-    .update(entity, 'utf8')
-    .digest('base64')
-}
-
-/**
- * Generate a weak hash.
- *
- * @param {Buffer} entity
- * @return {String}
- * @api private
- */
-
-function weakhash(entity) {
-  if (entity.length === 0) {
-    // fast-path empty
-    return '0-0'
-  }
-
-  var len = typeof entity === 'string'
-    ? Buffer.byteLength(entity, 'utf8')
-    : entity.length
-
-  if (len <= crc32threshold) {
-    // crc32 plus length when it's fast
-    // crc(str) only accepts utf-8 encoding
-    return len.toString(16) + '-' + crc(entity).toString(16)
-  }
-
-  // use md4 for long strings
-  return crypto
-    .createHash('md4')
-    .update(entity, 'utf8')
-    .digest('base64')
-}