iOS MDM - 如何在设备响应有效响应后关闭或停止连接

Question

我们正在构建一个 iOS MDM 服务器来管理 iOS 设备。 以下是将 iOS 设备注册到 MDM 服务器所涉及的步骤

1. 发送注册配置
2. 执行 SCEP
3. 发送 MDM 服务器证书。
4. 创建 APNS 证书。
5. 向设备发送推送通知。

设备收到推送通知并联系 MDM 服务器的“serverUrl”。它以如下所示的 Status = "Idle" 响应

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Status</key>
    <string>Idle</string>
    <key>UDID</key>
    <string><udid-of-device></string>
</dict>
</plist>

响应此命令以获取设备信息，发送如下。

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
    <dict>
        <key>Command</key>
        <dict>
            <key>RequestType</key>
            <string>DeviceInformation</string>
            <key>Queries</key>
            <array>
                <string>UDID</string>
                <string>DeviceName</string>
                <string>OSVersion</string>
                <string>ModelName</string>
                <string>IMEI</string>
            </array>
        </dict>
        <key>CommandUUID</key>
        <string>command-for-the-session</string>
    </dict>
</plist>

设备响应如下所示的设备信息

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CommandUUID</key>
    <string>command-for-the-session</string>
    <key>QueryResponses</key>
    <dict>
        <key>DeviceName</key>
        <string>iPhone</string>
        <key>IMEI</key>
        <string>01 353150 432467 8</string>
        <key>ModelName</key>
        <string>iPhone</string>
        <key>OSVersion</key>
        <string>7.1</string>
        <key>UDID</key>
        <string><udid-device></string>
    </dict>
    <key>Status</key>
    <string>Acknowledged</string>
    <key>UDID</key>
    <string><udid-device></string>
</dict>
</plist>

此流程按要求工作。 在此之后，我想结束与设备的连接，因为没有更多内容要发送到设备。

我的问题是在我们从设备收到该 CommandUUID 的有效详细信息后如何停止或关闭此连接。 它一直在调用 mdm 服务器 url，并且没有结束连接。

我尝试发送一个空的 plist 来停止连接，但没有成功。

请帮忙。

感谢阅读！

Answer 1

设备将通过发送以下内容不断向您的服务器查询新命令：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Status</key>
    <string>Idle</string>
    <key>UDID</key>
    <string><udid-of-device></string>
</dict>
</plist>

在这种情况下，如果您没有任何命令，则应返回带有空正文的 HTTP 200。这会向设备发出信号，它应该停止轮询，直到您发送下一个推送通知。

Answer 2

这就是我在 java 中所做的发送和清空响应。

如果一切顺利，响应状态默认为 200。

发送空响应的代码：

response.setStatus(200); // set status explicitly in case device polls to the mdm server
OutputStream outStream = response.getOutputStream();
outStream.write(new byte[0]);
outStream.close();

服务器日志如下：

iPhone mdmd[302] <Notice>: (Note ) MDM: mdmd starting...
 iPhone mdmd[302] <Notice>: (Note ) MDM: Looking for managed app states to clean up
 iPhone profiled[303] <Notice>: (Note ) profiled: Service starting...
 iPhone mdmd[302] <Notice>: (Note ) MDM: Network reachability has changed.
 iPhone mdmd[302] <Notice>: (Note ) MDM: Network reachability has changed.
 iPhone mdmd[302] <Notice>: (Note ) MDM: Push token received.
iPhone mdmd[302] <Notice>: (Note ) MDM: Push token received.
iPhone mdmd[302] <Notice>: (Note ) MDM: Received push notification.
iPhone mdmd[302] <Notice>: (Note ) MDM: Polling MDM server https://myserver-url:port/server for next command.
 iPhone mdmd[302] <Notice>: (Note ) MDM: Transaction completed. Status: 200
 iPhone mdmd[302] <Notice>: (Note ) MDM: Attempting to perform MDM request: DeviceInformation
iPhone mdmd[302] <Notice>: (Note ) MDM: Command Status: Acknowledged
iPhone mdmd[302] <Notice>: (Note ) MDM: Polling MDM server https://myserver-url:port/server for next command.
iPhone profiled[303] <Notice>: (Note ) profiled: Service stopping.
iPhone mdmd[302] <Notice>: (Note ) MDM: Transaction completed. Status: 200
 iPhone mdmd[302] <Notice>: (Note ) MDM: Server has no commands for this device.
iPhone mdmd[302] <Notice>: (Note ) MDM: mdmd stopping.