新增微信网关代理

front/public/transfer.php

@@ -0,0 +1,105 @@
+<?php
+/*
+ * 微信网关代理
+ * https://wechat.1zh888.com/transfer.php
+ * 把程序中的
+ * https://open.weixin.qq.com/connect/oauth2/authorize (mobile)
+ * 或
+ * https://open.weixin.qq.com/connect/qrconnect (pc)
+ * 换成 https://wechat.1zh888.com/transfer.php
+ * 并在后面拼上 &device=mobile 或 &device=pc
+ * **/
+function is_HTTPS()
+{
+  if (!isset($_SERVER['HTTPS'])) return FALSE;
+  if ($_SERVER['HTTPS'] === 1) {  //Apache
+    return TRUE;
+  } elseif ($_SERVER['HTTPS'] === 'on') { //IIS
+    return TRUE;
+  } elseif ($_SERVER['SERVER_PORT'] == 443) { //其他
+    return TRUE;
+  }
+  return FALSE;
+}
+
+function getDomain()
+{
+  $server_name = $_SERVER['SERVER_NAME'];
+  if (strpos($server_name, 'www.') !== false) {
+    return substr($server_name, 4);
+  }
+  return $server_name;
+}
+
+$appid = '';
+$scope = 'snsapi_login';
+$state = '';
+$code = '';
+$redirect_uri = '';
+$device = '';
+$protocol = '';
+if (is_HTTPS()) {
+  $protocol = 'https';
+} else {
+  $protocol = 'http';
+}
+if (isset($_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 = $_GET['code'];
+}
+if (isset($_GET['scope'])) {
+  $scope = $_GET['scope'];
+}
+if ($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=' . $appid,
+    '&redirect_uri=' . urlencode($protocol . '://' . $_SERVER['HTTP_HOST'] . '/transfer.php'),
+    '&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=",
+    getDomain(),
+    "; 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'])) {
+    $back_url = urldecode($_COOKIE['redirect_uri']);
+    header('Location: ' . implode('', [
+        $back_url,
+        strpos($back_url, '?') ? '&' : '?',
+        'code=' . $code,
+        '&state=' . $state
+      ]));
+  }
+}
+?>