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[英]Python opp obex server using Bluez-obex and pydbus?
[英]Bluez-obex and python opp server, how to change where files are stored?
我正在使用 bluez-obex 創建一個基於 python 的 opp obex 服務器,但我無法更改目錄。 我的代碼基於此,並將其轉換為具有文件路徑的類作為輸入。 我不斷收到KeyError: 'object does not export any interfaces; you might need to pass object path as the 2nd argument for get()'
KeyError: 'object does not export any interfaces; you might need to pass object path as the 2nd argument for get()'
使用我當前的代碼KeyError: 'object does not export any interfaces; you might need to pass object path as the 2nd argument for get()'
。 我設置的路徑錯了嗎? 我的課程代碼和調用函數如下。
from gi.repository import GLib
import pydbus
class opp_server():
def __init__(self, path):
self.BUS_NAME = 'org.bluez.obex'
self.PATH = '/org/bluez/obex'
self.AGENT_MANAGER_INTERFACE = 'org.bluez.obex.AgentManager1'
self.AGENT_INTERFACE = 'org.bluez.obex.Agent1'
self.SESSION_INTERFACE = 'org.bluez.obex.Session1'
self.TRANSFER_INTERFACE = 'org.bluez.obex.Transfer1'
self.ses_bus = pydbus.SessionBus()
self.path = path
def transfer_status_handler(self, iface, props_changed, props_removed):
if iface == self.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(self, dbus_path, interfaces):
if self.SESSION_INTERFACE in interfaces and 'server' in dbus_path:
print('Server session added')
elif self.TRANSFER_INTERFACE in interfaces and 'server' in dbus_path:
print('Transfer started')
transfer = self.ses_bus.get(self.BUS_NAME, dbus_path)
transfer.onPropertiesChanged = self.transfer_status_handler
def AuthorizePush(self):
print('Authorize Push', self.path)
transfer = self.ses_bus.get(self.BUS_NAME, self.path)
props = transfer.GetAll(self.TRANSFER_INTERFACE)
print(props)
return props.get('Name')
def Cancel(self):
print('Authorization Cancelled')
def Release(self):
pass
def server(self):
obex_mngr = self.ses_bus.get('org.bluez.obex', '/')
obex_mngr.onInterfacesAdded = self.iface_added_handler
mainloop = GLib.MainLoop()
self.ses_bus.register_object('/test/agent', self.AuthorizePush(), None)
print('Agent created')
agnt_mngr = ses_bus.get(self.BUS_NAME, self.PATH)
agnt_mngr.RegisterAgent('/test/agent')
print('Agent registered')
try:
mainloop.run()
except KeyboardInterrupt:
mainloop.quit()
打電話給班級
server = servertest.opp_server('/home/pi/GAMMA/ImageData')
server.server()
看起來您混淆了 DBus 對象路徑和文件系統路徑。 對於AuthorizePush
,輸入是org.bluez.obex.Transfer1
接口的org.bluez.obex.Transfer1
對象路徑,但您正在嘗試使用您希望放置文件的位置的文件系統路徑。
當您發布/導出org.bluez.obex.Agent1
接口時,您需要使用具有相同參數的三個方法。 可能值得查看導出自己的對象的 pydbus 教程
obexd
以以下信息開始: /usr/share/dbus-1/services/org.bluez.obex.service
對我來說是:
[D-BUS Service]
Name=org.bluez.obex
Exec=/usr/lib/bluetooth/obexd
SystemdService=obex.service
從幫助中可以看出,可以使用其他選項啟動obexd
:
$ /usr/lib/bluetooth/obexd -h
Usage:
obexd [OPTION?]
Help Options:
-h, --help Show help options
Application Options:
-d, --debug=DEBUG Enable debug information output
-p, --plugin=NAME,... Specify plugins to load
-P, --noplugin=NAME,... Specify plugins not to load
-n, --nodetach Run with logging in foreground
-r, --root=PATH Specify root folder location. Both absolute and relative can be used, but relative paths are assumed to be relative to user $HOME folder. Default $XDG_CACHE_HOME
-S, --root-setup=SCRIPT Root folder setup script
-l, --symlinks Allow symlinks leading outside of the root folder
-c, --capability=FILE Specify capability file, use '!' mark for scripts
-a, --auto-accept Automatically accept push requests
因此,您可以使用--root=PATH
選項來更改默認位置。
如果您確實想更改代碼中的路徑,則需要使AuthorizePush
返回的值具有絕對路徑。 例如:
def AuthorizePush(self, path):
transfer = ses_bus.get(BUS_NAME, path)
props = transfer.GetAll(TRANSFER_INTERFACE)
return '/tmp/' + props.get('Name')
這會將文件放在/tmp
目錄中。
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