PHP 7.2 CURLFile 给出“无效文件名”警告

我在使用 CURLFile 对象时遇到问题（curl_file_create）。我尝试了多种方法，但无论我尝试什么，我最终都会在日志文件中收到 PHP 警告，并且该文件在我的 cURL 调用中被忽略。

首先，一些信息：

• PHP 7.2
• 文件已确认存在并且可由 PHP/Apache 读取
• php-curl 和相关 php 库是最新的
• 这是对象内的一个片段，因此引用$this。所有变量都正确加载。
• 这是我开始的另一个问题的延续，当缩小范围时，似乎与主要的原始主题（mailgun）无关。如果您愿意，可以在此 URL 中引用它，但我打算尽快结束该问题。使用 PHP cURL 的 Mailgun 附件 - 无 SDK https://stackoverflow.com/questions/54678804/mailgun-attachments-with-php-curl-no-sdk?noredirect=1#comment96147796_54678804
• 请注意，在代码块中，我注释掉了尝试添加文件的其他几个变体 - 所有这些变体都会创建相同的警告/结果

代码块

$curl = curl_init();

$curlOpts = array(
    CURLOPT_POST => 1,
    CURLOPT_URL => $postUrl,
    CURLOPT_TIMEOUT => 20,
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_HTTPAUTH => CURLAUTH_BASIC,
    CURLOPT_USERPWD => 'api:' . $this->apiKey
);

$postFields = array(
    'from' => $email->from,
    'to' => $email->to,
    'subject' => $email->subject
);

if (strlen($email->cc) > 0) {
    $postFields['cc'] = $email->cc;
}

if (strlen($email->bcc) > 0) {
    $postFields['bcc'] = $email->bcc;
}

if (strlen($email->html) > 0) {
    $postFields['html'] = $email->html;
} else {
    $postFields['text'] = $email->text;
}

if (count($email->attachments) > 0) {
    // Curl attachments for < PHP5.5 not supported
    if (function_exists('curl_file_create')) {
        $curlOpts[CURLOPT_SAFE_UPLOAD] = 1; // for < PHP 7
        //$curlOpts[CURLOPT_HTTPHEADER] = array('Content-Type: multipart/form-data');
        //$postFields['attachment'] = curl_file_create($email->attachments[0]);
        for ($i = 1; $i <= count($email->attachments); $i++) {
            $postFields['attachment[' . $i . ']'] = curl_file_create($email->attachments[$i - 1], 'text/csv', basename($email->attachments[$i - 1]));
            //$postFields['attachment[' . $i . ']'] = curl_file_create('/var/www/sites/domain/contact.csv', 'text/csv', 'contact.csv');
            //$postFields['attachment[' . $i . ']'] = curl_file_create('test.txt', 'text/plain', 'test.txt');
            //$postFields['attachment[' . $i . ']'] = curl_file_create(realpath('test.txt'), 'text/plain', 'test.txt');
            //$postFields['attachment[' . $i . ']'] = new \CURLFile($email->attachments[$i - 1]);
        }
    } else {
        \D3DevelForms\Models\Error::CreateAndSaveSystemError(
            $plugin, 
            \D3DevelForms\Common::ERROR_WARNING, 
            'PHP 5.5 or newer required for Mailgun Attachments', 
            \D3DevelForms\Models\Error::ERROR_CODE_API_MAILGUN_LOCAL_ERROR,
            'You are using an outdated version of PHP. Email attachments via Mailgun will be ignored.');
    }
}

$curlOpts[CURLOPT_POSTFIELDS] = $postFields;

$log->UpdateDebugLog('Mailgun API Options', $curlOpts);

curl_setopt_array($curl, $curlOpts);

$curl_response = curl_exec($curl);
$info = curl_getinfo($curl);

卷曲选项 ($curlOpts)

Array
(
    [47] => 1
    [10002] => https://api.mailgun.net/v3/devtester.devtest.com/messages
    [13] => 20
    [19913] => 1
    [107] => 1
    [10005] => api:APIKEY
    [-1] => 1
    [10015] => Array
        (
            [from] => Dev Tester <[email protected] /cdn-cgi/l/email-protection>
            [to] => [email protected] /cdn-cgi/l/email-protection
            [subject] => Form Summary
            [text] => My Text Content
            [attachment[1]] => CURLFile Object
                (
                    [name] => /var/www/path_to/my_file.csv
                    [mime] => text/csv
                    [postname] => my_file.csv
                )

        )

)

返回的卷曲信息 ($info)

Array
(
    [url] => https://api.mailgun.net/v3/devtester.devtest.com/messages
    [content_type] => application/json
    [http_code] => 200
    [header_size] => 388
    [request_size] => 312
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 0.503718
    [namelookup_time] => 0.004273
    [connect_time] => 0.0932
    [pretransfer_time] => 0.279756
    [size_upload] => 1021
    [size_download] => 105
    [speed_download] => 208
    [speed_upload] => 2026
    [download_content_length] => 105
    [upload_content_length] => 1021
    [starttransfer_time] => 0.368725
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => Y.Y.Y.Y
    [certinfo] => Array
        (
        )

    [primary_port] => 443
    [local_ip] => X.X.X.X
    [local_port] => 38636
)

更新：当从命令行使用 cURL 进行测试时，它确实按预期工作，包括当我将其作为apache过程。

sudo -u apache curl -s --user 'api:APIKEY' \
    https://api.mailgun.net/v3/devtester.devtest.com/messages \
    -F from='Dev Tester <[email protected] /cdn-cgi/l/email-protection>' \
    -F to='[email protected] /cdn-cgi/l/email-protection' \
    -F subject='Hello' \
    -F text='Testing some Mailgun awesomness!' \
    -F attachment=@/var/www/path_to/my_file.csv
{
    "id": "<[email protected] /cdn-cgi/l/email-protection>",
    "message": "Queued. Thank you."
}

我在 Apache 日志中收到 PHP 警告，如下所示：

“PHP 警告：curl_setopt_array()：密钥附件的文件名无效 [1]”

这很棘手，因为我已经确认了以下内容：

• 文件存在
• Apache 可以读取该文件
• 文件路径不包含字母、数字、斜线和连字符之外的任何字符
• 因为文件是在同一个线程内生成的，所以我尝试引用静态文件，但结果是相同的。

尤里卡。问题是使用curl_setopt_array。我能够像这样纠正这个问题：

//$curlOpts[CURLOPT_POSTFIELDS] = $postFields;

$log->UpdateDebugLog('Mailgun API Options', $curlOpts);

curl_setopt_array($curl, $curlOpts);
curl_setopt($curl, CURLOPT_POSTFIELDS, $postFields);

我没有遇到任何关于此限制的文档curl_setopt_array，所以我不确定这是否是我的使用不当或者这是否是一个未知的错误。