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我目前正在實習，我想建立一個能夠連接到公司電子郵件服務器的Android應用程序。如何找出服務器想要成功響應的https域？
但是爲了能夠將設備連接到服務器，我需要知道除了工作用戶/密碼憑證之外，服務器期望在客戶端https請求中的哪些字段。
我試着獲取有關使用tcpdumb（服務器和客戶端）和wireshark發送的數據包的信息，但它們似乎被加密或不可讀，考慮到它的https是有意義的。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Roundcube Webmail :: Willkommen bei Roundcube Webmail</title>
<meta name="Robots" content="noindex,nofollow" />
<meta http-equiv="X-UA-Compatible" content="IE=EDGE" />
<link rel="index" href="./?_task=login" />
<link rel="shortcut icon" href="skins/classic/images/favicon.ico"/>
<link rel="stylesheet" type="text/css" href="skins/classic/common.min.css?s=1418906028" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="plugins/jqueryui/themes/classic/jquery-ui-1.9.2.custom.css?s=1418906027">
<script src="program/js/jquery.min.js?s=1418906027" type="text/javascript"></script>
<script src="program/js/common.min.js?s=1418906027" type="text/javascript"></script>
<script src="program/js/app.min.js?s=1418906027" type="text/javascript"></script>
<script src="program/js/jstz.min.js?s=1418906027" type="text/javascript"></script>
<script type="text/javascript">
/* <![CDATA[ */
var rcmail = new rcube_webmail();
rcmail.set_env({"task":"login","x_frame_options":"sameorigin","standard_windows":false,"cookie_domain":"","cookie_path":"\/","cookie_secure":true,"skin":"classic","refresh_interval":60,"session_lifetime":600,"action":"","comm_path":".\/?_task=login","compose_extwin":false,"date_format":"yy-mm-dd","request_token":"029873c7042111df50bf712676a72046"});
rcmail.gui_container("loginfooter","bottomline");
rcmail.add_label({"loading":"Wird geladen...","servererror":"Serverfehler!","connerror":"Verbindungsfehler (Fehler beim Erreichen des Servers)!","requesttimedout":"Zeit\u00fcberschreitung der Anforderung","refreshing":"Aktualisieren\u2026"});
rcmail.gui_object('message', 'message');
rcmail.gui_object('loginform', 'form');
/* ]]> */
</script>
<script type="text/javascript" src="plugins/jqueryui/js/jquery-ui-1.9.2.custom.min.js?s=1418906027"></script>
<script type="text/javascript" src="plugins/jqueryui/js/i18n/jquery.ui.datepicker-de.js?s=1418906027"></script>
</head>
<body>
<img src="skins/classic/images/roundcube_logo.png" id="logo" border="0" style="margin:0 11px" alt="Roundcube Webmail">
<div id="message"></div>
<div id="login-form">
<div class="boxtitle">Willkommen bei Roundcube Webmail</div>
<div class="boxcontent">
<form name="form" method="post" action="./?_task=login">
<input type="hidden" name="_token" value="029873c7042111df50bf712676a72046">
<input type="hidden" name="_task" value="login"><input type="hidden" name="_action" value="login"><input type="hidden" name="_timezone" id="rcmlogintz" value="_default_"><input type="hidden" name="_url" id="rcmloginurl" value=""><table summary="" border="0"><tbody><tr><td class="title"><label for="rcmloginuser">Benutzername</label>
</td>
<td class="input"><input name="_user" id="rcmloginuser" required="required" autocapitalize="off" autocomplete="off" type="text"></td>
</tr>
<tr><td class="title"><label for="rcmloginpwd">Passwort</label>
</td>
<td class="input"><input name="_pass" id="rcmloginpwd" required="required" autocapitalize="off" autocomplete="off" type="password"></td>
</tr>
</tbody>
</table>
<p class="formbuttons"><input type="submit" id="rcmloginsubmit" class="button mainaction" value="Anmelden"></p>
</form>
</div>
</div>
<noscript>
<p id="login-noscriptwarning">Warnung: Dieser Webmail-Service erfordert Javascript. Um ihn zu benutzten aktivieren Sie Javascript in ihren Browser-Einstellungen.</p>
</noscript>
<div id="login-bottomline">
Roundcube Webmail
</div>
<script type="text/javascript">
/* <![CDATA[ */
$(document).ready(function(){
rcmail.init();
var images = ["skins\/classic\/images\/icons\/folders.png","skins\/classic\/images\/mail_footer.png","skins\/classic\/images\/taskicons.gif","skins\/classic\/images\/display\/loading.gif","skins\/classic\/images\/pagenav.gif","skins\/classic\/images\/mail_toolbar.png","skins\/classic\/images\/searchfield.gif","skins\/classic\/images\/messageicons.png","skins\/classic\/images\/icons\/reset.gif","skins\/classic\/images\/abook_toolbar.png","skins\/classic\/images\/icons\/groupactions.png","skins\/classic\/images\/watermark.gif"];
for (var i=0; i<images.length; i++) {
img = new Image();
img.src = images[i];
}
});
/* ]]> */
</script>
</body>
</html>
這是從客戶端登錄頁面的代碼，有沒有一種方法，我可以根據此代碼想出服務器想要什麼？ 我沒有經驗的PHP無論如何，但我在java上學期建立了休息api +客戶端。
感謝您的幫助！
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