Using the template code provided, fix the code that is vulnerable to least privilege. You will need to change the permission level appropriately for each level of users as follows:

• Admin should have permission to Read, Write, and Execute
• Users should have permission to Read

You will need to fix the grant permission method.

For example, if an Admin input is:

my_dict.txt
Reagan

The output to the console will be the following:

Exists the path: True
Access to read the file: True
Access to write the file: True
Check if path can be executed: True

Alternatively, if a User input is:

my_dict.txt
Doe

The output to the console will be the following:

Exists the path: True
Access to read the file: True
Access to write the file: False
Check if path can be executed: False

my_dict.txt contains a dictionary list of authorized admin users and their username:

 * Caius : ccharlton329
 * Peyton : pstott885
 * Reagan : rebradshaw835
 * Ryley : rbarber894
 * Tyrese : tmayo945

Admins can write to the output_file.txt file:

 * I have write privilege.

import os
import stat

def admin(filename, admin):
    return admin
    
def user(filename, user):
    return user    
    
def grant_permission(name_list, filename):
    # FIXME
    os.chmod(filename, stat.S_IRWXU)

    check_permission(filename)

def check_permission(filename):
    # Check if file path exists
    path1 = os.access(filename, os.F_OK)
    print("The path exists:", path1)
    # Check if User has Read Access
    path2 = os.access(filename, os.R_OK)
    print("Access to read the file:", path2)
    # Check if User has Write Access
    path3 = os.access(filename, os.W_OK)
    print("Access to write the file:", path3)
    # Check if User has Execute Permission
    path4 = os.access(filename, os.X_OK)
    print("Check if path can be executed:", path4)

    if os.access(filename, os.R_OK):
    	# open txt file as file
    	with open(filename) as file:
    		file.read()
    else:		
        # in case can't access the file	
        print("Cannot access the file")

    with open("output_file.txt", 'w') as f:
        if os.access(filename, os.W_OK):
            f.write("I have write privilege.\\n")
    
if __name__ == '__main__':
    filename = input()
    name = input()
    k = []
    result = False

    with open(filename) as f:
        for line in f:
            fields = line.split()
            k.append(fields[0])
            
        for lineNum in range(len(k)):
            if name in k[lineNum]:
                result = True
                name_result = name
                
        if result:
            admin(filename, name)
        else:
            user(filename, name)

    grant_permission(k, filename)