Tableau使用PHP获取票证

时间:2013-09-17 07:15:36

标签: php curl fopen file-get-contents tableau

请帮忙。我正试图通过PHP从tableau服务器获得一张票。目前,我的ISP和我的服务器IP地址在tableau服务器上列为可信IP。如果我在我的远程服务器上使用javascript然后我得到了票但由于某种原因我无法获得PHP的任何结果并尝试了一系列的PHP代码片段。如果我能让他们中的任何一个人工作,我会高兴地分手。

注意:在javascript版本中,我需要输入与用户名相同的target_site,否则我不会得到结果。另请注意:url末尾的8000端口。

这是工作的html / javascript版本(返回有效的票证,例如128018285):

<script type="text/javascript">
function submitForm(){document.getElementById('form1').action = document.getElementById('server').value + "/trusted";}
</script>                      
<form method="POST" id="form1" onSubmit="submitForm()">
    <table class="style1">
        <tr>
            <td class="style2">
                Username:</td>
            <td>
                <input type="text" name="username" value="" /></td>
        </tr>
        <tr>
            <td class="style2">
                Server: </td>
            <td>
                <input type="text" id="server" name="server" value="http://" /></td>
        </tr>
        <tr>
            <td class="style2">
                Client IP (optional):</td>
            <td>
                 <input type="text" id="client_ip" name="client_ip" value="" /></td>
        </tr>
        <tr>
            <td class="style2">
                Site: (leave blank for Default site, else NameOfSite if using sites)</td>
            <td>
                <input type="text" id="target_site" name="target_site" value="" /></td>
        </tr>
        <tr>
            <td class="style2">
                        <input type="submit" name="submittable" value="Go" /></td>
            <td>
                 </td>
        </tr>
    </table>
</form>

这是我的代码,使用file_get_contents

的代码段1
$remote_addr = $_SERVER['REMOTE+ADDR'];  
  $params = array(
    'username' => 'myusername',
    'client_ip' => $remote_addr,
    'target_site' => 'myusername'
   );

    $context = stream_context_create($params);
    $ticket = file_get_contents('http://mysite.com:8000/trusted', false, $context);

  if ($ticket > 0) {
     return $ticket;
  }
  else
    return 0;

使用curl的另一个代码段

$server = 'myserver.com:8000';
$url = 'http://'.$server.'/trusted';
$fields_string ='target_site=myusername&username=myusername';

$ch = curl_init();      
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept-Encoding: gzip'));
curl_setopt($ch,CURLOPT_POST, 1);
curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string);

return curl_exec($ch);      
curl_close($ch);

另一个使用fopen的代码片段

$url = 'http://myserver.com:8000/trusted';
$data = array ('username' => 'myusername','target_site' => 'myusername', 'format' => 'txt');
$data = http_build_query($data);
$params = array('http' => array(
                        'method' => 'POST',
                        'content' => $data,
                         'header'  => 'Content-type: application/x-www-form-urlencoded' . "\r\n"
              .'Accept-Encoding:' . "\r\n"
                    ));
        if($optional_headers != null)
        {
            $params['http']['header'] = $optional_headers;
        }
        $ctx = stream_context_create($params);
        $fp = @fopen($url, 'rb', false, $ctx);
        if (!$fp)
        {
            throw new Exception("Problem with $url, $php_errormsg");
        }
        $response='';
        while (!feof($fp))
        {
            $response = $response.fgets($fp);
        }
        if ($response === false)
        {
            throw new Exception("Problem reading data from $url, $php_errormsg");
        }

        fclose($fp);
        return $response;

许多人提前感谢...

3 个答案:

答案 0 :(得分:1)

Tableau有一个可用的示例PHP(它在我键入的机器上运行)。你试过吗?

这篇文章实际上是指相同的示例代码并只是触摸它,因此它可以通过JS调用:

Generate tableau trusted ticket using AJAX

有问题的示例代码可在以下网址找到:

C:\ Program Files(x86)\ Tableau \ Tableau Server \ 8.0 \ extras \ embedding \ php

它看起来与你的相似,但使用http_post_fields()

的POST
    <?php

// Returns a trusted URL for a view on a server for the
// given user.  For example, if the URL of the view is:
//    http://tabserver/views/MyWorkbook/MyView
//
// Then:
//   $server = "tabserver";
//   $view_url = "views/MyWorkbook/MyView";
//
function get_trusted_url($user,$server,$view_url) {
  $params = ':embed=yes&:toolbar=yes';

  $ticket = get_trusted_ticket($server, $user, $_SERVER['REMOTE_ADDR']);
  if($ticket > 0) {
    return "http://$server/trusted/$ticket/$view_url?$params";
  }
  else 
    return 0;
}

// Note that this function requires the pecl_http extension. 
// See: http://pecl.php.net/package/pecl_http

// the client_ip parameter isn't necessary to send in the POST unless you have
// wgserver.extended_trusted_ip_checking enabled (it's disabled by default)
Function get_trusted_ticket($wgserver, $user, $remote_addr) {
  $params = array(
    'username' => $user,
    'client_ip' => $remote_addr
  );

  return http_parse_message(http_post_fields("http://$wgserver/trusted", $params))->body;
}

?>

答案 1 :(得分:0)

很抱歉,我的网络主机似乎阻止了端口8000,这就是代码无效的原因。

作为参考,这是完成这一操作的最简洁的代码片段,更改您自己的变量,myusername,mytargetsite,http://example.com/trusted

$opts = array('http' =>
array(
    'method'  => 'POST',
    'header'  => 'Content-type: application/x-www-form-urlencoded',
    'content' => 'username=myusername&target_site=mytargetsite'
)
);

$context  = stream_context_create($opts);

$result = file_get_contents('http://example.com/trusted', false, $context);

if ($result === false) {

throw new Exception("Problem reading data from $url, $php_errormsg");
}

else echo $result;

答案 2 :(得分:0)

根据您的建议,我使用了cURL请求,我已使用cURL请求解决了您的问题,如下所示:

function get_trusted_ticket($wgserver, $user, $remote_addr) {
    $server = $wgserver;
    $url = 'http://'.$server.'/trusted';
    $fields_string ='target_site=$remote_addr&username=$user';

    $ch = curl_init($url);
    $data = array('username' => $user, 'client_ip' => $remote_addr);

    curl_setopt($ch, CURLOPT_POST, true); 
    curl_setopt($ch,CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    return curl_exec($ch);      
    curl_close($ch);
}