使用python或linux终端连接wifi [英] connect wifi with python or linux terminal

问题描述

我正在尝试通过python和linux终端连接到wifi，但在两种情况下均无法正常工作.

I am trying to connect to wifi through python and linux terminal but in both cases it is not working with me.

对于python，我正在使用此库 https://wifi.readthedocs.org/zh/latest/scanning.html 扫描并保存该方案工作正常，但是每当我键入此行代码 scheme.activate()我没有输出

For python, I am using this library https://wifi.readthedocs.org/en/latest/scanning.html scanning and saving the scheme is working fine but whenever I type this line of code scheme.activate() and I get no output

任何想法，库有什么问题，以及您是否曾经使用过库?

Any ideas what is wrong with the library and if you have used it before or not??

我也尝试过使用CLI连接到WiFi网络.我用Google搜索，发现我应该做这三个陈述 1- iwlist wlan0 scan//扫描无线网络 2- iwconfig wlan0 essid"Mywirelessnetwork"//与网络关联 3- dhclient wla0//要获取UP

I tried also to connect to WiFi networks using the CLI. I Googled and found that I should do these three statements 1- iwlist wlan0 scan // to scan the wireess networks 2- iwconfig wlan0 essid "Mywirelessnetwork" // to associate with the network 3- dhclient wla0 // To get an UP

每当我执行第2步，然后检查iwconfig wlan0时，我发现无线接口均未关联！

Whenever I do step 2 and then check iwconfig wlan0 I found that the wireless interface is not associated !!

任何想法???

我想做的是建立一个库，该库最好通过python函数或库连接到wifi，并在树莓派PI上进行测试，因为我正在构建一些需要网络连接的应用程序.

What I am trying to do is to have a library of a way to connect to the wifi preferably through a python function or a library and tested on raspberry PI because I am building some applications that require network connection.

推荐答案

以下是使用python os模块和Linux iwlist命令搜索wifi设备列表以及nmcli命令的常规方法，以便连接到预期的设备.

Here is a general approach using python os module and Linux iwlist command for searching through the list of wifi devices and nmcli command in order to connect to a the intended device.

在此代码中，运行功能查找与您指定名称(可以是正则表达式模式或服务器名称的唯一部分)匹配的设备的SSID，然后通过以下方式连接到与您期望的条件匹配的所有设备:调用connection函数.

In this code the run function finds the SSID of devices that match with your specified name (which can be a regex pattern or a unique part of the server name) then connects to all the devices that match with your expected criteria, by calling the connection function.

"""
Search for a specific wifi ssid and connect to it.
written by kasramvd.
"""
import os


class Finder:
    def __init__(self, *args, **kwargs):
        self.server_name = kwargs['server_name']
        self.password = kwargs['password']
        self.interface_name = kwargs['interface']
        self.main_dict = {}

    def run(self):
        command = """sudo iwlist wlp2s0 scan | grep -ioE 'ssid:"(.*{}.*)'"""
        result = os.popen(command.format(self.server_name))
        result = list(result)

        if "Device or resource busy" in result:
                return None
        else:
            ssid_list = [item.lstrip('SSID:').strip('"\n') for item in result]
            print("Successfully get ssids {}".format(str(ssid_list)))

        for name in ssid_list:
            try:
                result = self.connection(name)
            except Exception as exp:
                print("Couldn't connect to name : {}. {}".format(name, exp))
            else:
                if result:
                    print("Successfully connected to {}".format(name))

    def connection(self, name):
        try:
            os.system("nmcli d wifi connect {} password {} iface {}".format(name,
       self.password,
       self.interface_name))
        except:
            raise
        else:
            return True

if __name__ == "__main__":
    # Server_name is a case insensitive string, and/or regex pattern which demonstrates
    # the name of targeted WIFI device or a unique part of it.
    server_name = "example_name"
    password = "your_password"
    interface_name = "your_interface_name" # i. e wlp2s0  
    F = Finder(server_name=server_name,
               password=password,
               interface=interface_name)
    F.run()

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