Perl 中 JSON 的 HTTP POST 请求

Question

我正在尝试在 Linksys EA4500 AP 中配置无线设置（例如将 ssid 设置为“vinoth”通道为“1”）。我可以使用 wireshark 看到下面的 POST 消息。

3E@@!dPzY+2K
SPOST /JNAP/ HTTP/1.1
Host: 192.168.1.1
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:22.0) Gecko/20100101 Firefox/22.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/json; charset=UTF-8
X-JNAP-Action: http:cisco.com/jnap/core/Transaction
X-JNAP-Authorization: Basic YWRtaW46YWRtaW4=
X-Requested-With: XMLHttpRequest
Referer: http:/cisco.com/     <<<<==== routerip
Content-Length: 474
Cookie: initial-tab=; ui-proxy-path=local; admin-auth=Basic%20YWRtaW46YWRtaW4%3D; current-applet=7B1F462B-1A78-4AF6-8FBB-0C221703BEA4
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache

[{"action":"http:/cisco.com/jnap/wirelessap/SetRadioSettings","request":{"radios":[{"radioID":"RADIO_2.4GHz","settings":{"isEnabled":true,"mode":"802.11bgn","ssid":"vinoth","broadcastSSID":true,"channelWidth":"Auto","channel":1,"security":"None"}}]}},{"action":"http://cisco.com/jnap/guestnetwork/SetGuestNetworkSettings","request":{"isGuestNetworkEnabled":false,"guestSSID":"vinoth-guest","guestPassword":"BeMyGuest","maxSimultaneousGuests":5,"broadcastGuestSSID":false}}]

我尝试使用 Perl 自动执行上述操作，但没有成功。由于我是这个 JSON 页面的新手，所以我不知道要发送的 POST 消息到底是如何发送的。

我为 $json 保留的内容是

'{"action":"http:/cisco.com/jnap/wirelessap/SetRadioSettings",' .
        '"request":{"radios":{"radioID":"RADIO_2.4GHz","settings":'.'{"isEnabled":true,"mode":"802.11bgn","ssid":"vinoth212","broadcastSSID":true,"channelWidth":"Auto","channel":1,"security":"None"}}}},{"action":"http://cisco.com/jnap/guestnetwork/SetGuestNetworkSettings",' .
    '"request":{"isGuestNetworkEnabled":false,"guestSSID":"vinoth-guest","guestPassword":"BeMyGuest","maxSimultaneousGuests":5,"broadcastGuestSSID":false}}';

和代码：

    use strict;
    use warnings;

    use LWP;

    my $ua = LWP::UserAgent->new;
    my $ip = $self->{ip};
    my $url = "http://$ip/";
    my $json = "";

    my $req = HTTP::Request->new(POST=>$url);
    $req->header('content-type' => 'application/json');
    $req->authorization_basic("admin", "admin");
    $req->content($json);

下面是检查请求状态的代码

    my $res = $ua->request($req);
    if ($res->is_success) {
    my $message = $res->decoded_content;
    print "received the message";
    } else {
    print "HTTP get code: ", $res->code, "\n";
    print "HTTP get: msg: ", $res->message, "\n";
    }

请帮我解决这个问题。期待您的宝贵回复。

P.S：在 Wireshark Post 消息中，链接不正确，因为我无法发布超过 2 个链接的查询。

谢谢， 维诺特

Answer 1

在发出任何请求时使用代码$req->authorization_basic("admin", "admin"); 表示Authorization: Basic YWRtaW46YWRtaW4= HTTP 标头。

但是从您的wireshirk 的标头来看，它是X-JNAP-Authorization: Basic YWRtaW46YWRtaW4=，这是不同的东西（自定义标头）。所以从你的块中删除 authorization_basic 并使用这些：

$req->header('Content-Type' => 'application/json; charset=UTF-8');
$req->header('X-JNAP-Action' => 'http:cisco.com/jnap/core/Transaction');
$req->header('X-JNAP-Authorization' => 'Basic YWRtaW46YWRtaW4=');
## YWRtaW46YWRtaW4= is base64 of admin:admin
$req->header('X-Requested-With' => 'XMLHttpRequest');