add files.

.gitignore

@@ -0,0 +1,40 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+.idea
+bower_components

index.php

@@ -0,0 +1,68 @@
+<?php
+$appid = '';
+$scope = 'snsapi_login';
+$state = '';
+$code = '';
+$redirect_uri = '';
+
+if (isset($_GET['device'])) {
+    $device = $_GET['device'];
+}
+
+if (isset($_GET['appid'])) {
+    $appid = $_GET['appid'];
+}
+if (isset($_GET['state'])) {
+    $state = $_GET['state'];
+}
+if (isset($_GET['redirect_uri'])) {
+    $redirect_uri = $_GET['redirect_uri'];
+}
+if (isset($_GET['code'])) {
+    $code = $_GET['code'];
+}
+
+if ($code == 'test') {
+    exit;
+}
+
+if (empty($code)) {
+    $authUrl = '';
+    if ($device == 'pc') {
+        $authUrl = 'https://open.weixin.qq.com/connect/qrconnect';
+    } else {
+        $authUrl = 'https://open.weixin.qq.com/connect/oauth2/authorize';
+    }
+
+    $options = [
+        $authUrl,
+        '?appid=' . $appid,
+        '&redirect_uri=' . urlencode($_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['HTTP_HOST'] . '/'),
+        '&response_type=code',
+        '&scope=' . $scope,
+        '&state=' . $state,
+        '#wechat_redirect'
+    ];
+
+    //把redirect_uri先写到cookie
+    header(implode('', [
+        "Set-Cookie: redirect_uri=",
+        urlencode($redirect_uri),
+        "; path=/; domain=",
+        $_SERVER['HTTP_HOST'],
+        "; expires=" . gmstrftime("%A, %d-%b-%Y %H:%M:%S GMT", time() + 60),
+        "; Max-Age=" + 60,
+        "; httponly"
+    ]));
+
+    header('Location: ' . implode('', $options));
+} else {
+    if (isset($_COOKIE['redirect_uri'])) {
+        header('Location: ' . implode('', [
+                urldecode($_COOKIE['redirect_uri']),
+                '?code=' . $code,
+                '&state=' . $state
+            ]));
+    }
+}
+?>