cURL和Drupal：存儲每個用戶的遠程Cookie

Question

我在Drupal中有一個Web應用程序，它基本上是作爲其他地方的多頁HTML表單的代理。我能夠檢索與捲曲的頁面，並與DOM文檔解析它，然後嵌入<form>內容的Drupal的表單中：

<?php 
function proxy_get_dom($url, $method = 'get', $arguments = array()) { 
    // Keep a static cURL resource for speed. 
    static $web = NULL; 
    if (!is_resource($web)) { 
    $web = curl_init(); 
    // Don't include any HTTP headers in the output. 
    curl_setopt($web, CURLOPT_HEADER, FALSE); 
    // Return the result as a string instead of echoing directly. 
    curl_setopt($web, CURLOPT_RETURNTRANSFER, TRUE); 
    } 

    // Add any GET arguments directly to the URL. 
    if ($method == 'get' && !empty($arguments)) { 
    $url .= '?' . http_build_arguments($arguments, 'n', '&'); 
    } 

    curl_setopt($web, CURLOPT_URL, $url); 

    // Include POST data. 
    if ($method == 'post' && !empty($arguments)) { 
    curl_setopt($web, CURLOPT_POST, TRUE); 
    curl_setopt($web, CURLOPT_POSTFIELDS, http_build_query($arguments)); 
    } 
    else { 
    curl_setopt($web, CURLOPT_POST, FALSE); 
    } 

    $use_errors = libxml_use_internal_errors(TRUE); 
    try { 
    $dom = new DOMDocument(); 
    $dom->loadHTML(curl_exec($web)); 
    } 
    catch (Exception $e) { 
    // Error handling... 
    return NULL; 
    } 

    if (!isset($dom)) { 
    // Error handling... 
    return NULL; 
    } 

    libxml_use_internal_errors($use_errors); 

    return $dom; 
} 

function FORM_ID($form, &$form_state) { 
    // Set the initial URL if it hasn't already been set. 
    if (!isset($form_state['remote_url'])) { 
    $form_state['remote_url'] = 'http://www.example.com/form.faces'; 
    } 

    // Get the DOMDocument 
    $dom = proxy_get_dom($form_state['remote_url'], 'post', $_POST); 
    if (!isset($dom)) { 
    return $form; 
    } 

    // Pull out the <form> and insert it into $form['embedded']. 
    $nlist = $dom->getElementsByTagName('form'); 
    // assert that $nlist->length == 1 

    $form['embedded']['#markup'] = ''; 
    foreach ($nlist->item(0)->childNodes as $childnode) { 
    // It would be better to use $dom->saveHTML but it does not accept the 
    // $node parameter until php 5.3.6, which we are not guaranteed to be 
    // using. 
    $form['embedded']['#markup'] .= $dom->saveXML($childnode); 
    } 

    // Apply some of the attributes from the <form> element onto our <form> 
    // element. 
    if (isset($element->attributes)) { 
    foreach ($nlist->item(0)->attributes as $attr) { 
     if ($attr->nodeName == 'action') { 
     $form_state['remote_action'] = $attr->nodeValue; 
     } 
     elseif ($attr->nodeName == 'class') { 
     $form['#attributes']['class'] = explode(' ', $attr->nodeValue); 
     } 
     elseif ($attr->nodeName != 'method') { 
     $form['#attributes'][$attr->nodeName] = $attr->nodeValue; 
     } 
    } 
    } 

    return $form; 
} 

function FORM_ID_submit($form, &$form_state) { 
    // Use the remote_action as the remote_url, if set. 
    if (isset($form_state['remote_action'])) { 
    $form_state['remote_url'] = $form_state['remote_action']; 
    } 
    // Rebuilt the form. 
    $form_state['rebuild'] = TRUE; 
} 
?> 

但是，嵌入形式會不會搬過去的第一步。問題似乎是，代理背後的頁面正在設置一個會話cookie，我忽略了上面的代碼。我可以使用CURLOPT_COOKIEFILE和CURLOPT_COOKIEJAR存儲Cookie，但我不確定該文件應該位於何處。一方面，它肯定應該是每個用戶的不同位置，並且它肯定應該是而不是是一個公共訪問位置。

我的問題是：如何在cURL中按用戶在Drupal存儲和發送cookie？

Answer 1

假設您使用會話，然後使用用戶的會話ID來命名cookie文件。例如

curl_setopt(CURLOPT_COOKIEFILE, 'cookies.txt'); 

會給每個人相同的cookie文件，他們最終會共享相同的cookie。但是做

curl_setopt(CURLOPT_COOKIEFILE, 'cookie-' . session_id() . '.txt'); 

會爲每個用戶產生一個唯一的會話文件。您將不得不手動刪除該文件，否則您將最終得到一個巨大的cookie文件存儲庫。如果您要更改會話ID（例如session_regenerate_id()，則會「丟失」Cookie文件，因爲會話ID將不再一樣。