fgetcsv()不尊重$ enclosure

时间:2013-01-25 21:56:51

标签: php digest-authentication

我正在编写一个通过套接字与SMTP服务器通信的脚本,我正在尝试实现DIGEST-MD5身份验证,但是我在解析后发回的字符串时遇到了问题AUTH命令。<​​/ p>

看似base64_decode()之后:

realm="smtp.domain.net",nonce="AJRUc5Jx0UQbv5SJ9FoyUnaZpqZIHDhLTU+Awn/K0Uw=",qop="auth,auth-int",charset=utf-8,algorithm=md5-sess

我想使用str_getcsv(),但是服务器仍然在PHP 5.2上,所以我得到了以下代码from the comments on PHP.net,它看起来很好:

<?php
if (!function_exists('str_getcsv')) {
        function str_getcsv($input, $delimiter=',', $enclosure='"', $escape=null, $eol=null) {
                $temp=fopen("php://memory", "rw");
                fwrite($temp, $input);
                fseek($temp, 0);
                $r = array();
                while (($data = fgetcsv($temp, 4096, $delimiter, $enclosure)) !== false) {
                        $r[] = $data;
                }
                fclose($temp);
                return $r;
        }
}

但它返回以下内容:

array (
  0 =>
  array (
    0 => 'realm="smtp.domain.net"',
    1 => 'nonce="2PuESkmrNzGu/5b8N6eIYQoW7mSlScnYAB/PSYebkYo="',
    2 => 'qop="auth',
    3 => 'auth-int"',
    4 => 'charset=utf-8',
    5 => 'algorithm=md5-sess',
  ),
)

请注意,索引2和3应该是单个qop="auth,auth-int"

在写这篇文章时,我意识到可能fgetcsv()期望$enclosure字符包含整个字段而不仅仅是其中的一部分,但在这种情况下我必须知道如何正确地解析这个字符串。

2 个答案:

答案 0 :(得分:0)

在我的'PHP DIGEST-MD5'的谷歌搜索中,我遇到a patch for another project处理相同格式的字符串与下面的行:

preg_match_all('/(\w+)=(?:"([^"]*)|([^,]*))/', $challenge, $matches);

这给了我:

array (
  0 =>
  array (
    0 => 'realm="smtp.domain.net',
    1 => 'nonce="AJRUc5Jx0UQbv5SJ9FoyUnaZpqZIHDhLTU+Awn/K0Uw=',
    2 => 'qop="auth,auth-int',
    3 => 'charset=utf-8',
    4 => 'algorithm=md5-sess',
  ),
  1 =>
  array (
    0 => 'realm',
    1 => 'nonce',
    2 => 'qop',
    3 => 'charset',
    4 => 'algorithm',
  ),
  2 =>
  array (
    0 => 'smtp.domain.net',
    1 => 'AJRUc5Jx0UQbv5SJ9FoyUnaZpqZIHDhLTU+Awn/K0Uw=',
    2 => 'auth,auth-int',
    3 => '',
    4 => '',
  ),
  3 =>
  array (
    0 => '',
    1 => '',
    2 => '',
    3 => 'utf-8',
    4 => 'md5-sess',
  ),
)

然后我可以用这个循环填写一个有用的数组:

$authvars = array();
foreach( $auth_matches[1] as $key => $val ) {
    if( !empty($auth_matches[2][$key]) ) {
        $authvars[$val] = $auth_matches[2][$key];
    } else {
        $authvars[$val] = $auth_matches[3][$key];
    }
}

这给了我:

array (
  'realm' => 'ns103.zabco.net',
  'nonce' => 'xITX1qgqlCDmYX6IrctN0WZRx7+Q4W7jjaXCCeUZnU8=',
  'qop' => 'auth,auth-int',
  'charset' => 'utf-8',
  'algorithm' => 'md5-sess',
)

它并不完全漂亮,但它完成了工作。

答案 1 :(得分:0)

$decodedString = 'realm="smtp.domain.net",nonce="AJRUc5Jx0UQbv5SJ9FoyUnaZpqZIHDhLTU+Awn/K0Uw=",qop="auth,auth-int",charset=utf-8,algorithm=md5-sess';

parse_str(preg_replace('/(?:(")(.*?)("))?,(?:(")(.*?)("))?/','$1$2$3&$4$5$6',$decodedString), $values);
var_dump($values);

如果您想删除结果数组值周围的引号,请使用

$values = array_map(
    function ($value) {
        return trim($value,'"');
    },
    $values
);
var_dump($values);