crczp-automated-problem-generation-lib 1.0.3

Random generator of selected variables

Welcome to the generator library's documentation!

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A generator library is a Python package that generates random data within set restrictions for you. A generator library is a Python package that generates random data within set restrictions for you. When you need to generate random individual values into a game for various players, this library is for you.

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Compatibility

It supports only Python 3.6, and the above Python versions may work as well, however it is not guaranteed.

Basic Usage

Install with pip:

pip install generator.whl

Use generator.var_parser() to parse input variables in the file and then use generator.var_generator() to generate directory filled with generated data.

from generator.var_generator import generate
from generator.var_parser import parser_var_file

with open("input.yml") as file:
        seed = 1234
        variable_list = parser_var_file(file)
        print(file.read())
        
        # generated_text:
        #    type: text
        #
        #generated_password:
        #    type: password
        #
        #generated_username:
        #    type: username
        #
        #generated_port:
        #    type: port
        
        print(generate(variable_list, seed))
        
        # {'generated_text': 'I always did something i was not ready to do. I think that’s how you grow. When there’s that moment of ', 'generated_password': '6SBI1LEz', 'generated_username': 'persona', 'generated_port': '35608'}

        

How to use generator library with CTFd personal plugin?

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To use generated values with individual flags within CTFd, try our generator application that manages all necessary for you. Just follow README.md instructions from Kosc-automated-problem-generation-app.

How it works

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Generator pkg consists of var_generator.py where all required logical functions to generation process can be found, var_parser.py which function loads and processes the input data and finally var_object.py which stores class Variable.

var_generator.py

has function generator(list_of_Variable) with one argument that is a list filled with a Variable object. The result is that each object of Variable has been filled attribute generated_value with selected restrictions.

var_parser.py

has function parser_var_file(var_file) that reads all input data from var_file the Python file object and fill them into Variable objects that are returned as a list.

var_object.py

has a constructor with all possible attributes that have an impact on the generation process. The only mandatory arguments are name and type.

Supported variable types:

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• username - randomly chosen username
• password - randomly generated characters
• port - randomly generated number
• text - randomly chosen sentence

How should variable in the input file look like?

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You have to create one input file to set minimal or maximal generated values, set prohibited values for each generated variable.

keyword / type:	username	password	text	port	IP
type	✓	✓	✓	✓	✓
min	-	-	-	✓	✓
max	-	-	-	✓	✓
prohibited	✓	✓	-	✓	✓
challenge_id	✓	✓	✓	✓	✓
length	✓	✓	-	-	-

bold - required attribute

normal - optional attribute

Structure of input file:

  <variable_name>:
     - type: <variable_type>  
        min: <value>
        max: <value>
        length: <value>
        prohibited: [<value>,<value>,...]
        challenge_id: <int>  

  <variable_name>:
        ...

Attributes:

• min - Minimal value that still can be generated
• max - Maximal value that still can be generated
• length - Number variable of characters
• prohibited - List of values that are excluded
• challenge_id - ID of the challenge where will be generated flag uploaded

NOTE: challenge_id - works only with generator application (Kosc-automated-problem-generation-app)