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<?php |
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namespace Freyo\LaravelEntWechat\Middleware; |
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use Closure; |
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use EntWeChat\Foundation\Application; |
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use Event; |
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use Freyo\LaravelEntWechat\Events\WeChatUserAuthorized; |
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use Log; |
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/** |
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* Class OAuthAuthenticate. |
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*/ |
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class OAuthAuthenticate |
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{ |
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/** |
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* Use Service Container would be much artisan. |
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*/ |
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private $wechat; |
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/** |
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* Inject the wechat service. |
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*/ |
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public function __construct(Application $wechat) |
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{ |
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$this->wechat = $wechat; |
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} |
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/** |
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* Handle an incoming request. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @param \Closure $next |
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* @param string|null $account |
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* |
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* @return mixed |
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*/ |
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public function handle($request, Closure $next, $account = null) |
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{ |
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$isNewSession = false; |
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$onlyRedirectInWeChatBrowser = config('entwechat.oauth.only_wechat_browser', false); |
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$scopes = config('entwechat.oauth.scopes', ['snsapi_base']); |
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if (!is_null($account)) { |
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$this->wechat = $this->wechat->account($account); |
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$onlyRedirectInWeChatBrowser = config("entwechat.account.{$account}.oauth.only_wechat_browser", false); |
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$scopes = config("entwechat.account.{$account}.oauth.scopes", ['snsapi_base']); |
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} |
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if ($onlyRedirectInWeChatBrowser && !$this->isWeChatBrowser($request)) { |
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if (config('debug')) { |
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Log::debug('[not wechat browser] skip wechat oauth redirect.'); |
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} |
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return $next($request); |
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} |
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if (is_string($scopes)) { |
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$scopes = array_map('trim', explode(',', $scopes)); |
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} |
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if (!session('entwechat.oauth_user') || $this->needReauth($scopes)) { |
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if ($request->has('code')) { |
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session(['entwechat.oauth_user' => $this->wechat->oauth->user()]); |
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$isNewSession = true; |
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Event::fire(new WeChatUserAuthorized(session('entwechat.oauth_user'), $isNewSession)); |
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return redirect()->to($this->getTargetUrl($request)); |
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} |
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session()->forget('entwechat.oauth_user'); |
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return $this->wechat->oauth->scopes($scopes)->redirect($request->fullUrl()); |
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} |
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Event::fire(new WeChatUserAuthorized(session('entwechat.oauth_user'), $isNewSession)); |
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return $next($request); |
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} |
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/** |
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* Build the target business url. |
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* |
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* @param Request $request |
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* |
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* @return string |
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*/ |
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protected function getTargetUrl($request) |
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{ |
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$queries = array_except($request->query(), ['code', 'state']); |
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return $request->url().(empty($queries) ? '' : '?'.http_build_query($queries)); |
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} |
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/** |
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* Is different scopes. |
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* |
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* @param array $scopes |
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* |
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* @return bool |
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*/ |
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protected function needReauth($scopes) |
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{ |
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return session('entwechat.oauth_user.original.scope') == 'snsapi_base' && in_array('snsapi_userinfo', $scopes); |
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} |
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/** |
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* Detect current user agent type. |
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* |
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* @param \Illuminate\Http\Request $request |
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* |
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* @return bool |
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*/ |
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protected function isWeChatBrowser($request) |
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{ |
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return strpos($request->header('user_agent'), 'MicroMessenger') !== false; |
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} |
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} |
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