Adding Angular and dependent packages for testing

third_party/pkg/angular/lib/core_dom/cookies.dart

+part of angular.core.dom;
+
+/**
+* This class provides low-level acces to the browser's cookies.
+* It is not meant to be used directly by applications.  Instead
+* use the Cookies service.
+*
+*/
+@NgInjectableService()
+class BrowserCookies {
+  dom.Document _document;
+
+  var lastCookies = {};
+  var lastCookieString = '';
+  var cookiePath;
+  var baseElement;
+
+
+  BrowserCookies() {
+    // Injecting document produces the error 'Caught Compile-time error during mirrored execution:
+    // <'file:///mnt/data/b/build/slave/dartium-lucid32-full-trunk/build/src/out/Release/gen/blink/
+    // bindings/dart/dart/html/Document.dart': Error: line 7 pos 3: expression must be a compile-time constant
+    // @ DocsEditable '
+    // I have not had time to debug it yet.
+    _document = dom.document;
+
+    var baseElementList = _document.getElementsByName('base');
+    if (baseElementList.isEmpty) return;
+    baseElement = _document.getElementsByName('base').first;
+    cookiePath = _baseHref();
+  }
+
+  var URL_PROTOCOL = new RegExp(r'^https?\:\/\/[^\/]*');
+  _baseHref() {
+    var href = baseElement != null ? baseElement.attr('href') : null;
+    return href != null ? href.replace(URL_PROTOCOL, '') : '';
+  }
+
+  // NOTE(deboer): This is sub-optimal, see dartbug.com/14281
+  _unescape(s) => Uri.decodeFull(s);
+  _escape(s) =>
+    Uri.encodeFull(s)
+      .replaceAll('=', '%3D')
+      .replaceAll(';', '%3B');
+
+
+  _updateLastCookies() {
+    var cookieLength, cookieArray, cookie, i, index;
+
+    if (_document.cookie != lastCookieString) {
+      lastCookieString = _document.cookie;
+      cookieArray = lastCookieString.split("; ");
+      lastCookies = {};
+
+      for (i = 0; i < cookieArray.length; i++) {
+        cookie = cookieArray[i];
+        index = cookie.indexOf('=');
+        if (index > 0) { //ignore nameless cookies
+          var name = _unescape(cookie.substring(0, index));
+          // the first value that is seen for a cookie is the most
+          // specific one.  values for the same cookie name that
+          // follow are for less specific paths.
+          if (!lastCookies.containsKey(name)) {
+            lastCookies[name] = _unescape(cookie.substring(index + 1));
+          }
+        }
+      }
+    }
+    return lastCookies;
+  }
+
+  /**
+   * Returns a cookie.
+   */
+  operator[](key) => _updateLastCookies()[key];
+
+  /**
+   * Sets a cookie.  Setting a cookie to [null] deletes the cookie.
+   */
+  operator[]=(name, value) {
+    var cookieLength, cookieArray, cookie, i, index;
+
+    if (identical(value, null)) {
+      _document.cookie = "${_escape(name)}=;path=$cookiePath;expires=Thu, 01 Jan 1970 00:00:00 GMT";
+    } else {
+      if (value is String) {
+        cookieLength = (_document.cookie = "${_escape(name)}=${_escape(value)};path=$cookiePath").length + 1;
+
+        // per http://www.ietf.org/rfc/rfc2109.txt browser must allow at minimum:
+        // - 300 cookies
+        // - 20 cookies per unique domain
+        // - 4096 bytes per cookie
+        if (cookieLength > 4096) {
+          print("Cookie '$name' possibly not set or overflowed because it was " +
+                "too large ($cookieLength > 4096 bytes)!");
+        }
+      }
+    }
+
+  }
+
+  get all => _updateLastCookies();
+}
+
+/**
+ *   Cookies service
+ */
+class Cookies {
+
+  BrowserCookies _browserCookies;
+
+  Cookies(BrowserCookies this._browserCookies);
+
+  /**
+   * Returns the value of given cookie key
+   */
+  operator[](name) => this._browserCookies[name];
+
+  /**
+   * Sets a value for given cookie key
+   */
+  operator[]=(name, value) {
+    this._browserCookies[name] = value;
+  }
+
+  /**
+   * Remove given cookie
+   */
+  remove(name) {
+    this._browserCookies[name] = null;
+  }
+}
+