使用Bluezobex和pydbus的Python opp obex服务器？

Question

对于我的项目，我需要通过蓝牙将.zip文件下行链路。我正在为此使用python和obex。我已经实现了一个工作的python opp客户机（向ukBaz呼救），但是我仍然使用操作系统来启动服务器，因此我的服务器程序的其余部分不知道何时收到文件。程序的其余部分已经完成，但是没有服务器的输出，我无法触发解压函数运行。我已经阅读了bluez obex API文档，但似乎没有任何关于启动服务器的内容。还有别的办法吗？我的代码如下

os.system("sudo obexpushd -B -o /home/pi/Desktop/ -n")

Answer 1

我不熟悉obexpushd以及它通过使用obexd提供的功能给您带来的好处

我的理解是，您需要创建一个obex-agent来接受/拒绝带有obexd的Bluetooth对象推送请求

监视InterfacesAddedDBus信号应该会为您提供在传输开始时需要知道的信息。然后，您可以监视状态更改时的PropertiesChanged信号

我能够将手机中的照片推送到Raspberry Pi上，RPi上运行以下内容（我的手机和RPi已经配对）：

from gi.repository import GLib
import pydbus

BUS_NAME = 'org.bluez.obex'
PATH = '/org/bluez/obex'
AGENT_MANAGER_INTERFACE = 'org.bluez.obex.AgentManager1'
AGENT_INTERFACE = 'org.bluez.obex.Agent1'
SESSION_INTERFACE = 'org.bluez.obex.Session1'
TRANSFER_INTERFACE = 'org.bluez.obex.Transfer1'

ses_bus = pydbus.SessionBus()


def transfer_status_handler(iface, props_changed, props_removed):
    if iface == TRANSFER_INTERFACE:
        status = props_changed.get('Status')
        if status == 'complete':
            print('Transfer complete')
        elif status == 'queued':
            print('Still queued')
        elif status == 'active':
            print('transferring')
        elif status == 'suspended':
            print('Suspended')
        elif status == 'error':
            print('error')

def iface_added_handler(dbus_path, interfaces):
    if SESSION_INTERFACE in interfaces and 'server' in dbus_path:
        print('Server session added')
    elif TRANSFER_INTERFACE in interfaces and 'server' in dbus_path:
        print('Transfer started')
        transfer = ses_bus.get(BUS_NAME, dbus_path)
        transfer.onPropertiesChanged = transfer_status_handler


class Agent:
    """
      <node>
        <interface name='org.bluez.obex.Agent1'>
          <method name='Release'>
          </method>
          <method name='AuthorizePush'>
            <arg type='s' name='path' direction='out'/>
            <arg type='o' name='transfer' direction='in'/>
          </method>
          <method name='Cancel'>
          </method>
        </interface>
      </node>
    """
    def AuthorizePush(self, path):
        print('Authorize Push', path)
        transfer = ses_bus.get(BUS_NAME, path)
        props = transfer.GetAll(TRANSFER_INTERFACE)
        print(props)
        return props.get('Name')

    def Cancel(self):
        print('Authorization Cancelled')

    def Release(self):
        pass


if __name__ == '__main__':
    obex_mngr = ses_bus.get('org.bluez.obex', '/')
    obex_mngr.onInterfacesAdded = iface_added_handler
    mainloop = GLib.MainLoop()
    ses_bus.register_object('/test/agent', Agent(), None)
    print('Agent created')
    agnt_mngr = ses_bus.get(BUS_NAME, PATH)
    agnt_mngr.RegisterAgent('/test/agent')
    print('Agent registered')
    try:
        mainloop.run()
    except KeyboardInterrupt:
        mainloop.quit()

此代码只接受对其发出的任何请求。这可能是一件不好的事情，人们可能希望添加一些检查（或提示用户）来检查文件是否应该被接受