Question

我正在尝试从托管c ++中的应用程序登录我的网站。我使用curl执行此操作，虽然我没有收到任何错误，但我对如何获取检查登录是否成功所需的信息感到困惑。不幸的是，我无法找到与我有类似问题的人，所以我感谢任何帮助。

private: System::Void bLogin_Click ( System::Object^ sender, System::EventArgs^  e )
{
    if ( System::String::IsNullOrEmpty ( tbUsername->Text ) )
    {
        System::String^ str = gcnew System::String ( "Login failed! Please enter a valid username." );
        System::Windows::Forms::MessageBox::Show ( str );

        return;
    }
    if ( System::String::IsNullOrEmpty ( tbUsername->Text ) )
    {
        System::String^ str = gcnew System::String ( "Login failed! Please enter a valid password" );
        System::Windows::Forms::MessageBox::Show ( str );

        return;
    }

    using System::Runtime::InteropServices::Marshal;

    curl_global_init ( CURL_GLOBAL_ALL );

    CURL* curl = curl_easy_init ();
    if ( !curl )
    {
        curl_global_cleanup ();
        return;
    }

    curl_easy_setopt ( curl, CURLOPT_SSL_VERIFYPEER, 1L ); 
    curl_easy_setopt ( curl, CURLOPT_SSL_VERIFYHOST, 1L );  

    curl_easy_setopt ( curl, CURLOPT_USERAGENT, "Mozilla/4.0" ); 
    curl_easy_setopt ( curl, CURLOPT_FOLLOWLOCATION, 1 );
    curl_easy_setopt ( curl, CURLOPT_URL, "https://www.myurl.com/member.php?action=login" );

    const char* szUser = static_cast< const char* >( Marshal::StringToHGlobalAnsi ( tbUsername->Text ).ToPointer () );
    const char* szPass = static_cast< const char* >( Marshal::StringToHGlobalAnsi ( tbPassword->Text ).ToPointer () );


    curl_easy_setopt ( curl, CURLOPT_POST, 1L );
    curl_easy_setopt ( curl, CURLOPT_POSTFIELDS, Fmt::Fmt ( "username=%s&password=%s", szUser, szPass ) );
    //curl_easy_setopt ( curl, CURLOPT_USERPWD, Fmt::Fmt ( "%s:%s", szUser, szPass ) );

    std::string strData;
    curl_easy_setopt ( curl, CURLOPT_WRITEFUNCTION, WriteCallback );
    curl_easy_setopt ( curl, CURLOPT_WRITEDATA, &strData );


    CURLcode res = curl_easy_perform ( curl );
    /* its always CURLE_OK */ 
    if ( res != CURLE_OK )
    {
        System::Windows::Forms::MessageBox::Show ( "A error has occured during the login process." );
    }

    Marshal::FreeHGlobal ( System::IntPtr ( reinterpret_cast< long long >( szUser ) ) );
    Marshal::FreeHGlobal ( System::IntPtr ( reinterpret_cast< long long >( szPass ) ) );

    /* check if suceeded here... but everything in strData is the same whether the credentials are right or wrong */


    curl_easy_cleanup ( curl );
    curl_global_cleanup ();
}

此外，我的网站附带了＃34; Wildcard SSL＆＃34;但我不确定这是否重要？我对所有这一切都很陌生，所以如果我做错了什么，我很抱歉。

Answer 1

区分成功登录和失败登录完全取决于服务器提供的答复。由于我们不知道涉及哪个Web应用程序，因此我们无法提供更准确的信息。

其次，使用托管c ++项目中的curl非常奇怪。您可以访问.NET框架，该框架提供更易于使用的HTTP客户端，避免了所有手动清理/封送。

Answer 2

我最终使用了WebRequest类，正如D. Jurcau建议的那样。另外，我将action=do_login添加到参数中，然后检查字符串是否成功

使用CURL（C ++）登录论坛

2 个答案: