我正在尝试使用TIdHTTP.Post()方法在网站上提交一个我无法弄清楚的表单。我已经尝试了几次迭代并更改了我的代码，并找到了我需要帮助的路障。我对TIdHTTP及其用法相对较新，所以我请求原谅任何对我的代码都很愚蠢的东西。
到目前为止，我已经能够使用TIdHTTP.Get()方法从站点获取HTML代码。然后我检查HTML中的<form>代码，并设计下面的代码将该表单提交到网站。
我无法判断我的代码是否无法正常工作，因为我没有正确使用Post()方法，或者因为我没有正确使用CookieManager。我收到的只是执行时的“内部服务器错误”。
有趣的是，手动登录的网站要求您输入您的帐号，出生日期和密码，但我在HTML中看到的表单只包含两个提交变量...用户名（这是Acct和DOB的组合，似乎）并提交。所以我不明白它处理或发布密码变量的方式/位置？
这是我目前在Delphi中的代码：
procedure TMSBS_App_GUI.SubmitClick(Sender: TObject);
Var
Response : String;
ResponseSet : TStringStream;
Params : TStringList;
IdHttp : TIDHttp;
IdSSL : TIdSSLIOHandlerSocketOpenSSL;
CookieMonster : TidCookieManager;
begin
Params := TStringList.Create;
Params.Add('username=' + 'username');
Params.Add('submit.value=' + 'submit');
idhttp := TIdhttp.Create;
idhttp.AllowCookies := True;
CookieMonster := TiDCookieManager.Create;
idHttp.CookieManager := CookieMonster;
idSSLOpenSSLHeaders.Load;
IdSSL := TIdSSLIOHandlerSocketOpenSSL.Create(nil);
idHttp.ReadTimeout := 30000;
idHttp.IOHandler := idSSL;
idHttp.Get('https://' + website);
idhttp.Request.ContentType := 'application/x-www-form-urlencoded';
idhttp.Request.Referer := 'http://' + website;
idSSL.SSLOptions.Method := sslvTLSv1;
idSSL.SSLOptions.Mode := sslmUnassigned;
ResponseSet := TStringStream.Create(nil);
Try
Memo1.Text := idHttp.Post('https://' + website,Params);
Finally
Params.Free;
ResponseSet.Free;
End;
end;
这是网页：
<!-- SiteMinder Encoding=ISO-8859-1; -->
<!-- FCC File : (generic) caloglfn.fcc version 1.4-->
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">
<link rel="stylesheet" type="text/css" href="styles.css" />
<!-- Cross-frame scripting prevention: This code will prevent this page from being encapsulated within HTML frames. Remove, or comment out, this code if the functionality that is contained in this SiteMinder page is to be included within HTML frames. -->
<SCRIPT type="text/javascript" src="https://ff.kis.v2.scr.kaspersky-labs.com/D0501246-9A02-314D-B50C-0C6D353C6332/main.js" charset="UTF-8"></script><link rel="stylesheet" crossorigin="anonymous" href="https://ff.kis.v2.scr.kaspersky-labs.com/2336C353D6C0-C05B-D413-20A9-6421050D/abn/main.css"/><script>
if (top !=self)
top.location=self.location;
</SCRIPT>
<title>Member/Pensioner Services Online Login</title>
<script>
function submit_form()
{
document.mos_form.username.value = document.mos_form.pUserID.value + document.mos_form.pDOB.value
document.mos_form.submit()
}
</script>
</head>
<body>
<div id="wrapper">
<div id="help">
<a style="border-bottom:none;" href="mso_pso_access_help.html" target="_blank"><img STYLE="border:none;" src="Help_button.png" alt="Help" align="right"> </a>
</div>
<div id="header">
<img class="crest" src="crest.png" alt="Crest - Superannuation Corporation" align="left">
<img class="logo" src="mso_pso.png" alt="Pensioner Services Online (PSO) and Member Services Online (MSO)" align="right">
</div>
<div id="toplinks">
</div>
<div id="form">
<form name="mos_form" method="POST" enctype="application/x-www-form-urlencoded" autocomplete="off">
<input type="hidden" name="autherrmsg" value="Login failed. Please try again."/>
<table width="100%" border="0" cellspacing="2" cellpadding="2">
<tr>
<td align="left">
<H1>
<span style="color: #3E842E;">Member Access</span>
</H1>
</td>
</tr>
<tr>
<td>
<p><font color="red"> </font></p>
<p>
To gain access to the complete range of online services, please enter your Membership Number, Date of Birth and Password below.
</p>
<p> If you need any help, click on Help in the top right-hand corner of this screen.</p>
<p> </p>
</td>
</tr>
</table>
<label for="hidden_username"></label>
<input type="hidden" name="username">
<label for="hidden_url"></label>
<input type="hidden" name="url" value="<ERROR_INFORMATION>" READONLY>
<label for="hidden_proxy"></label>
<input type="hidden" name="proxypath" value="<PROXY_PATH>">
<table width="900" border="0">
<tr height="38" valign="top">
<td width="200px" align="right" > <label for="mem_num" id="mem_num_label">Membership Number </label> </td>
<td width="200px" > <input id="pUserID" type="text" name="pUserID" value="" size="27" maxlength="13" id="mem_num"> </td>
<td width="500px">
<img STYLE="border:none;" src="mso_pso_question.png" onmouseover="this.style.cursor = 'help';"
title="Please enter your Membership Number.
This is either your Employment Number or Pension Reference Number as found on our correspondence to you.
If this is not available please Contact us.">
</td>
</tr>
<tr height="38" valign="top">
<td width="200px" align="right" > <label for="dob" id="dob_label">Date of Birth </label> </td>
<td width="200px" > <input type="text" name="pDOB" value="" size="27" maxlength="8" id="dob" placeholder="DDMMYYYY"> </td>
<td width="500px">
<img STYLE="border:none;" src="mso_pso_question.png" onmouseover="this.style.cursor = 'help';"
title="Please enter your date of birth in this format: DDMMYYYY (e.g. 01021955).">
</td>
</tr>
<tr height="38" valign="top">
<td width="200px" align="right" > <label for="acc_num" id="acc_num_label">Password</label> </td>
<td width="200px"> <input type="PASSWORD" name="password" value="" size="27" maxlength="30" id="acc_num"> </td>
<td width="500px">
<img STYLE="border:none;" src="mso_pso_question.png" onmouseover="this.style.cursor = 'help';"
title='Please enter your Password.
If you have forgotten your Password, use the "I've forgotten my password" link to reset your access credentials.
If you need to contact us, our details are available via the contact us button at the top right-hand corner of this screen.'>
</td>
</tr>
</tr>
<tr height="38" valign="top">
<td width="200px" width=200></td>
<td width="200px" align="right"> <a href="https://www.*****.au/no-scheme-provided/register-or-reset"> I've forgotten my password </a> </td>
<td width="500px">
</tr>
<tr height="38" valign="top">
<td colspan=2 align="right"><a href="https://www.*****.au/register-or-reset/no-scheme-provided"> Register</a>   <input type=button onclick=javascript:submit_form() value=Login> </td>
</tr>
<tr>
</table>
<script language="JavaScript">
<!-- the script here sets the focus on UserID field
document.mos_form.pUserID.focus();
document.mos_form.pUserID.select();
function enter(e)
{
if (navigator.appName == "Netscape")
whichASCII = e.which;
else
whichASCII = event.keyCode
if (whichASCII == 13 )
{
submit_form();
}
}
document.onkeypress = enter;
if (navigator.appName == "Netscape")
document.mos_form.pAccessCode.onkeypress = enter;
// End of script -->
</script>
<!-- SiteMinder Variables START -->
<input type=hidden name=target value="http://website">
<input type=hidden name=smauthreason value="0">
<input type=hidden name=smagentname value="boFynyFE9jczy7ra1lzqLmXPeVc9xLptAWQSI9ksks1Hx/oGQmJxQA7Fy25/Xt9X">
<!-- SiteMinder Variables END -->
</FORM>
</div>
<div id="footer">
<table width=100% border=0 cellspacing="0" cellpadding="0">
<tr>
<td height="30px" align="left" valign="middle" bgcolor="#3E842E">
<a href="http://www.*****.au/privacy" title="Privacy policy" target="_blank" class="wlink">Privacy</a> |
<a href="http://www.*****.au/disclaimer" title="Disclaimer" target="_blank" class="wlink">Disclaimer</a>
</td>
</tr>
<tr>
<td height="30px" colspan="2" valign="top" bgcolor="#949599" class="footer"><p class="footer"><span class="bold">Superannuation Company</span> ABN: ## ### ### ### AFSL: ###### RSEL: L#######<br /></td>
</tr>
</table>
</div>
</div>
<!--<script>
function getParameterByName(name, url) {
if (!url) url = window.location.href;
name = name.replace(/[[]]/g, "\$&");
var regex = new RegExp("[#&]" + name + "(=([^&#]*)|&|#|$)"),
results = regex.exec(url);
if (!results) return null;
if (!results[2]) return '';
return decodeURIComponent(results[2].replace(/+/g, " "));
}
document.getElementById('pUserID').value = getParameterByName('id');
</script> -->
</body>
</html>
这是POST请求的Wireshark数据包：
Hypertext Transfer Protocol
POST /live/red_lojson/100eng.json?sh=0&ph=1383&ivh=928&dt=2720&pdt=214&ict=&pct=1&perf=widget%7C214%7C16%2Clojson%7C1027%7C656%2Csh%7C1031%7C0%2Csh%7C1035%7C16&rndr=render_toolbox%7C1375&cmenu=null&ppd=4&ppl=4&fbe=&xmv=0&xms=0&xmlc=0&jsfw=
Request Method: POST
Request URI [truncated]: /live/red_lojson/100eng.json?sh=0&ph=1383&ivh=928&dt=2720&pdt=214&ict=&pct=1&perf=widget%7C214%7C16%2Clojson%7C1027%7C656%2Csh%7C1031%7C0%2Csh%7C1035%7C16&rndr=render_toolbox%7C1375&cmenu=null&ppd=4&ppl=4&fbe=&xmv=
Request Version: HTTP/1.1
Host: m.addthis.com\r\n
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0\r\n
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n
Accept-Language: en-US,en;q=0.5\r\n
Accept-Encoding: gzip, deflate\r\n
Referer: http://website/\r\n
Content-Length: 0\r\n
Content-Type: text/plain;charset=UTF-8\r\n
Cookie: na_tc=Y; uid=597293e6c72cb3be; na_id=2017072123300513069970337317; uvc=27%7C47%2C4%7C48%2C0%7C49%2C10%7C50%2C3%7C51; loc=MDAwMDBPQ0FVTlMxNDYxMzMxMjAwMDAwMDAwVg==; mus=0; ssc=pinterest%3B1%2Cgoogle%3B1\r\n
Connection: keep-alive\r\n
\r\n
您从Wireshark显示的POST请求与您显示的HTML不匹配。事实上，POST请求甚至根本不是HTML网络表单提交。
您不需要创建自己的TIdCookieManager对象，TIdHTTP可以在内部为您创建一个。而且，就此而言，TIdHTTP也可以create the TIdSSLIOHandlerSocketOpenSSL object for you。
此外，您正在泄漏CookieMonster和IdSSL对象（除非您在ARC平台上运行此代码）。
在任何情况下，你没有正确填写TStringList，甚至没有关闭。您必须为<input>中的每个<form>字段添加一个条目，该字段具有name和非空白value。这包括所有hidden字段，脚本分配的字段等。如果不这样做很容易导致“内部服务器错误”失败。您只为HTML表单定义的10个输入字段中的1个提供值。
根据您显示的HTML，请尝试以下方法：
procedure TMSBS_App_GUI.SubmitClick(Sender: TObject);
var
Params : TStringList;
IdHttp : TIdHTTP;
UserID, DOB, Password, AgentName, Response: String;
begin
IdSSLOpenSSL.LoadOpenSSLLibrary;
UserID := ...;
DOB := ...;
Password := ...;
IdHttp := TIdHTTP.Create;
try
IdHttp.AllowCookies := True;
IdHttp.ReadTimeout := 30000;
IdHttp.HandleRedirects := True;
//IdHttp.IOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(IdHttp);
Response := IdHttp.Get('https://' + website);
// I *suspect* the following value is randomly
// generated when the HTML is requested. If
// so, you will have to parse it out each time...
AgentName := 'boFynyFE9jczy7ra1lzqLmXPeVc9xLptAWQSI9ksks1Hx/oGQmJxQA7Fy25/Xt9X';
Params := TStringList.Create;
try
Params.Add('autherrmsg=Login failed. Please try again.');
Params.Add('username=' + UserID + DOB);
Params.Add('url=<ERROR_INFORMATION>');
Params.Add('proxypath=<PROXY_PATH>');
Params.Add('pUserID=' + UserID);
Params.Add('pDOB=' + DOB);
Params.Add('password=' + Password);
Params.Add('target=http://website');
Params.Add('smauthreason=0');
Params.Add('smagentname=' + AgentName);
IdHttp.Request.Referer := 'http://' + website;
Response := IdHttp.Post('https://' + website, Params);
Memo1.Text := Response;
finally
Params.Free;
end;
finally
IdHttp.Free;
end;
end;