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96 lines
3.2 KiB
Python
96 lines
3.2 KiB
Python
# Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http:#www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Internal use only.
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This file implements controlling APC PDU via telnet.
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"""
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import telnetlib
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class Control(object):
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""" control APC via telnet """
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@classmethod
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def apc_telnet_make_choice(cls, telnet, choice):
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""" select a choice """
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telnet.read_until(b"Event Log")
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telnet.read_until(b">")
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telnet.write(choice.encode() + b"\r\n")
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@classmethod
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def apc_telnet_common_action(cls, telnet, check_str, action):
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""" wait until a pattern and then write a line """
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telnet.read_until(check_str.encode())
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telnet.write(action.encode() + b"\r\n")
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@classmethod
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def control(cls, apc_ip, control_dict):
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"""
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control APC
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:param apc_ip: IP of APC
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:param control_dict: dict with outlet ID and "ON" or "OFF"
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"""
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for _outlet in control_dict:
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assert 0 < _outlet < 9
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assert control_dict[_outlet] in ["ON", "OFF"]
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# telnet
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# set timeout as 2s so that it won't waste time even can't access APC
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tn = telnetlib.Telnet(host=apc_ip, timeout=5)
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# log on
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cls.apc_telnet_common_action(tn, "User Name :", "apc")
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cls.apc_telnet_common_action(tn, "Password :", "apc")
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# go to Device Manager
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cls.apc_telnet_make_choice(tn, "1")
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# go to Outlet Management
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cls.apc_telnet_make_choice(tn, "2")
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# go to Outlet Control/Configuration
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cls.apc_telnet_make_choice(tn, "1")
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# do select Outlet and control
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for _outlet in control_dict:
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# choose Outlet
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cls.apc_telnet_make_choice(tn, str(_outlet))
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# choose Control Outlet
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cls.apc_telnet_make_choice(tn, "1")
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# choose action
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_action = control_dict[_outlet]
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if "ON" in _action:
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cls.apc_telnet_make_choice(tn, "1")
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else:
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cls.apc_telnet_make_choice(tn, "2")
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# do confirm
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cls.apc_telnet_common_action(tn, "cancel :", "YES")
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cls.apc_telnet_common_action(tn, "continue...", "")
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# return to Outlet Control/Configuration
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cls.apc_telnet_make_choice(tn, "\033")
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cls.apc_telnet_make_choice(tn, "\033")
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# exit to main menu and logout
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tn.write(b"\033\r\n")
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tn.write(b"\033\r\n")
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tn.write(b"\033\r\n")
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tn.write(b"4\r\n")
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@classmethod
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def control_rest(cls, apc_ip, outlet, action):
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outlet_list = list(range(1, 9)) # has to be a list if we want to remove from it under Python 3
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outlet_list.remove(outlet)
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cls.control(apc_ip, dict.fromkeys(outlet_list, action))
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