Initial commit for OpenECOMP SDN-C OA&M

[sdnc/oam.git] / dgbuilder / dgeflows / node_modules / express / node_modules / parseurl / index.js

diff --git a/dgbuilder/dgeflows/node_modules/express/node_modules/parseurl/index.js b/dgbuilder/dgeflows/node_modules/express/node_modules/parseurl/index.js
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+/*!
+ * parseurl
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var url = require('url')
+var parse = url.parse
+var Url = url.Url
+
+/**
+ * Pattern for a simple path case.
+ * See: https://github.com/joyent/node/pull/7878
+ */
+
+var simplePathRegExp = /^(\/\/?(?!\/)[^\?#\s]*)(\?[^#\s]*)?$/
+
+/**
+ * Exports.
+ */
+
+module.exports = parseurl
+module.exports.original = originalurl
+
+/**
+ * Parse the `req` url with memoization.
+ *
+ * @param {ServerRequest} req
+ * @return {Object}
+ * @api public
+ */
+
+function parseurl(req) {
+  var url = req.url
+
+  if (url === undefined) {
+    // URL is undefined
+    return undefined
+  }
+
+  var parsed = req._parsedUrl
+
+  if (fresh(url, parsed)) {
+    // Return cached URL parse
+    return parsed
+  }
+
+  // Parse the URL
+  parsed = fastparse(url)
+  parsed._raw = url
+
+  return req._parsedUrl = parsed
+};
+
+/**
+ * Parse the `req` original url with fallback and memoization.
+ *
+ * @param {ServerRequest} req
+ * @return {Object}
+ * @api public
+ */
+
+function originalurl(req) {
+  var url = req.originalUrl
+
+  if (typeof url !== 'string') {
+    // Fallback
+    return parseurl(req)
+  }
+
+  var parsed = req._parsedOriginalUrl
+
+  if (fresh(url, parsed)) {
+    // Return cached URL parse
+    return parsed
+  }
+
+  // Parse the URL
+  parsed = fastparse(url)
+  parsed._raw = url
+
+  return req._parsedOriginalUrl = parsed
+};
+
+/**
+ * Parse the `str` url with fast-path short-cut.
+ *
+ * @param {string} str
+ * @return {Object}
+ * @api private
+ */
+
+function fastparse(str) {
+  // Try fast path regexp
+  // See: https://github.com/joyent/node/pull/7878
+  var simplePath = typeof str === 'string' && simplePathRegExp.exec(str)
+
+  // Construct simple URL
+  if (simplePath) {
+    var pathname = simplePath[1]
+    var search = simplePath[2] || null
+    var url = Url !== undefined
+      ? new Url()
+      : {}
+    url.path = str
+    url.href = str
+    url.pathname = pathname
+    url.search = search
+    url.query = search && search.substr(1)
+
+    return url
+  }
+
+  return parse(str)
+}
+
+/**
+ * Determine if parsed is still fresh for url.
+ *
+ * @param {string} url
+ * @param {object} parsedUrl
+ * @return {boolean}
+ * @api private
+ */
+
+function fresh(url, parsedUrl) {
+  return typeof parsedUrl === 'object'
+    && parsedUrl !== null
+    && (Url === undefined || parsedUrl instanceof Url)
+    && parsedUrl._raw === url
+}