Add 'packages/user_agent/' from commit '70b15207d5e746fca954c5c7107ad8e1be059078'

git-subtree-dir: packages/user_agent
git-subtree-mainline: ae8f7a77d2
git-subtree-split: 70b15207d5

packages/user_agent/.gitignore

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+# See https://www.dartlang.org/tools/private-files.html
+
+# Files and directories created by pub
+.buildlog
+.packages
+.project
+.pub/
+.scripts-bin/
+build/
+**/packages/
+
+# Files created by dart2js
+# (Most Dart developers will use pub build to compile Dart, use/modify these 
+#  rules if you intend to use dart2js directly
+#  Convention is to use extension '.dart.js' for Dart compiled to Javascript to
+#  differentiate from explicit Javascript files)
+*.dart.js
+*.part.js
+*.js.deps
+*.js.map
+*.info.json
+
+# Directory created by dartdoc
+doc/api/
+
+# Don't commit pubspec lock file 
+# (Library packages only! Remove pattern if developing an application package)
+pubspec.lock
+
+.dart_tool

packages/user_agent/CHANGELOG.md

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+# 2.0.0
+* Angel 2 + Dart 2 updates

packages/user_agent/LICENSE

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+MIT License
+
+Copyright (c) 2016 The Angel Framework
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

packages/user_agent/README.md

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+# user_agent
+Middleware to inject a User Agent object into requests.
+For convenience's sake, it also exports the `user_agent` library.

packages/user_agent/example/example.dart

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+import 'dart:io';
+import 'package:angel_framework/angel_framework.dart';
+import 'package:angel_user_agent/angel_user_agent.dart';
+import 'package:user_agent/user_agent.dart';
+
+main() async {
+  var app = new Angel();
+  var http = new AngelHttp(app);
+
+  app.get(
+    '/',
+    waterfall([
+      parseUserAgent,
+      (req, res) {
+        var ua = req.container.make<UserAgent>();
+        return ua.isChrome
+            ? 'Woohoo! You are running Chrome.'
+            : 'Sorry, we only support Google Chrome.';
+      },
+    ]),
+  );
+
+  var server = await http.startServer(InternetAddress.anyIPv4, 3000);
+  print('Listening at http://${server.address.address}:${server.port}');
+}

packages/user_agent/lib/angel_user_agent.dart

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+import 'package:angel_framework/angel_framework.dart';
+import 'package:user_agent/user_agent.dart';
+
+/// Injects a [UserAgent] factory into requests.
+///
+/// Because it is an injected factory, the user agent will not be
+/// parsed until you request it via `req.container.make<UserAgent>()`.
+bool parseUserAgent(RequestContext req, ResponseContext res) {
+  req.container.registerFactory<UserAgent>((container) {
+    var agentString = req.headers.value('user-agent');
+
+    if (agentString?.trim()?.isNotEmpty != true) {
+      throw new AngelHttpException.badRequest(
+          message: 'User-Agent header is required.');
+    } else if (agentString != null) {
+      var userAgent = new UserAgent(agentString);
+      container.registerSingleton<UserAgent>(userAgent);
+      return userAgent;
+    }
+  });
+
+  return true;
+}

packages/user_agent/pubspec.yaml

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+name: angel_user_agent
+version: 2.0.0
+description: Angel middleware to parse and inject a User Agent object into requests.
+author: Tobe O <thosakwe@gmail.com>
+homepage: https://github.com/angel-dart/user_agent
+environment:
+  sdk: ">=2.0.0-dev <3.0.0"
+dependencies:
+  angel_framework: ^2.0.0-alpha
+  user_agent: ^2.0.0