lf-

(version 1)
(deny default (with no-log))


(define TMPDIR (param "_GLOBAL_TMP_DIR"))

(deny default)

; Disallow creating setuid/setgid binaries, since that
; would allow breaking build user isolation.

lf-

{
  "nodes": {
    "brew-src": {
      "flake": false,
      "locked": {
        "lastModified": 1718075954,
        "narHash": "sha256-4TeUhv5VLEufP+Z/NkKnUk4NUaf59cMsj6NvsVbE+8w=",
        "owner": "Homebrew",
        "repo": "brew",
        "rev": "3f08c75e7b950d4340dab462f3e7f77e8093fa2b",

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~ » cd dev
~/dev » cd mercury-web-jacked
direnv: loading ~/dev/mercury-web-jacked/.envrc
direnv: using nix
direnv: export +AR +AS +CC +CHROMATIC_PROJECT_TOKEN +CONFIG_SHELL +CUSTOM_META_TAG_IN_DEV +CXX +DETERMINISTIC_BUILD +HOST_PATH +IN_NIX_SHELL +LD +NIX_BINTOOLS +NIX_BINTOOLS_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_BUILD_CORES +NIX_BUILD_TOP +NIX_CC +NIX_CC_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_CFLAGS_COMPILE +NIX_ENFORCE_NO_NATIVE +NIX_HARDENING_ENABLE +NIX_INDENT_MAKE +NIX_LDFLAGS +NIX_STORE +NM +NODE_BUILD_MEMORY_LIMIT +NODE_ENV +NODE_PATH +OBJCOPY +OBJDUMP +PYTHONHASHSEED +PYTHONNOUSERSITE +PYTHONPATH +RANLIB +REACT_APP_BACKEND_SOURCE +REACT_APP_BUGSNAG_API_KEY +REACT_APP_BUGSNAG_RELEASE_STAGE +REACT_APP_MERCURY_DOMAIN +REACT_APP_NO_BUGSNAG_REPORT +REACT_APP_PERSONA_ENVIRONMENT +REACT_APP_SEGMENT_KEY +REACT_APP_TEST_BANK_REWRITE +REACT_APP_XERO_OAUTH_2_CLIENT_ID +READELF +SIZE +SOURCE_DATE_EPOCH +STRINGS +STRIP +TEMP +TEMPDIR +TMP +WEBPACK_DEV_SERVER_SSL +_PYTHON_HOST_PLATFORM +_P

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writeonly (from github: @lf-)

I participated in the 2020 Google CTF on the UBC CTF team Maple Bacon. Without their help, I would have probably given up out of frustration. Special thanks to Robert and Filip who put up with my many questions and swearing at the computer.

All the files for my solution are available on my GitHub.

lf-

import logging
from pathlib import Path
import time

import requests

MAILGUN_API_KEY = 'key-xxxxx'
MAILGUN_DOMAIN = 'yourdomain.ca'
MAILGUN_FROM = 'dellwatch <[email protected]>'
MAILGUN_TO = '[email protected]'

lf-

from __future__ import print_function
import random


board = ['wheat', 'wood', 'sheep'] * 4 + ['rock', 'brick'] * 3 + ['desert']
random.shuffle(board)
slices = [
    board[0:3],
    board[3:7],
    board[7:12],

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"""
Add copy to clipboard from IPython!
To install, just copy it to your profile/startup directory, typically:
    ~/.ipython/profile_default/startup/
Example usage:
    %clip hello world
    # will store "hello world"
    a = [1, 2, 3]
    %clip a
    # will store "[1, 2, 3]"

lf-

import contextlib


@contextlib.contextmanager
def lennyface():
    global print
    oldprint = print
    def new_print(*args, **kwargs):
        #newargs = [a.replace(' ', '( ͡° ͜ʖ ͡°)') for a in args]
        args = list(args)

lf-

# <hack>
# our D-Bus library is missing async :(
# source: https://github.com/LEW21/pydbus/issues/58

def _async_result_handler(obj, result, user_data):
    """Generic callback dispatcher called from glib loop when an async method
    call has returned. This callback is set up by method dbus_async_call."""
    (result_callback, error_callback, real_user_data) = user_data
    try:
        ret = obj.call_finish(result)

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127.0.0.1: =====================================================
127.0.0.1: IPMI 1.5 Get Channel Authentication Capabilities Request
127.0.0.1: =====================================================
127.0.0.1: RMCP Header:
127.0.0.1: ------------
127.0.0.1: [               6h] = version[ 8b]
127.0.0.1: [               0h] = reserved[ 8b]
127.0.0.1: [              FFh] = sequence_number[ 8b]
127.0.0.1: [               7h] = message_class.class[ 5b]
127.0.0.1: [               0h] = message_class.reserved[ 2b]