neale/moth
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First pass cleanup, still broken

This commit is contained in:
Neale Pickett 2016-10-22 16:35:55 +00:00
parent b340b44f0f
commit 6c028ffa29
3 changed files with 221 additions and 371 deletions
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11
package-puzzles
View File

@ -95,7 +95,16 @@ if __name__ == '__main__':
for points in sorted(puzzles_dict):
puzzle = puzzles_dict[points]
puzzledir = os.path.join(categoryname, 'content', mapping[points])
puzzlejson = puzzle.publish()
puzzledict = {
'author': puzzle.author,
'hashes': puzzle.hashes(),
'files': [f.name for f in puzzle.files if f.visible],
'body': puzzle.html_body(),
}
secretsdict = {
'summary': puzzle.summary,
'answers': puzzle.answers,
}
# write associated files
assoc_files = []

211
tools/devel-server.py
View File

@ -1,12 +1,14 @@
#!/usr/bin/env python3
import cgi
import glob
import html
import http.server
import io
import mistune
import moth
import os
import pathlib
import shutil
import socketserver
import sys
import traceback
@ -15,8 +17,9 @@ try:
from http.server import HTTPStatus
except ImportError:
class HTTPStatus:
NOT_FOUND = 404
OK = 200
OK = (200, 'OK', 'Request fulfilled, document follows')
NOT_FOUND = (404, 'Not Found', 'Nothing matches the given URI')
INTERNAL_SERVER_ERROR = (500, 'Internal Server Error', 'Server got itself in trouble')
# XXX: This will eventually cause a problem. Do something more clever here.
seed = 1
@ -58,12 +61,14 @@ class MothHandler(http.server.SimpleHTTPRequestHandler):
except:
tbtype, value, tb = sys.exc_info()
tblist = traceback.format_tb(tb, None) + traceback.format_exception_only(tbtype, value)
page = ("# Traceback (most recent call last)\n" +
" " +
" ".join(tblist[:-1]) +
tblist[-1])
self.serve_md(page)
payload = ("Traceback (most recent call last)\n" +
"".join(tblist[:-1]) +
tblist[-1]).encode('utf-8')
self.send_response(HTTPStatus.INTERNAL_SERVER_ERROR)
self.send_header("Content-Type", "text/plain; charset=utf-8")
self.send_header("Content-Length", payload)
self.end_headers()
self.wfile.write(payload)
def do_GET(self):
if self.path == "/":
@ -71,7 +76,7 @@ class MothHandler(http.server.SimpleHTTPRequestHandler):
elif self.path.startswith("/puzzles"):
self.serve_puzzles()
elif self.path.startswith("/files"):
self.serve_file()
self.serve_file(self.translate_path(self.path))
else:
self.send_error(HTTPStatus.NOT_FOUND, "File not found")
@ -81,7 +86,7 @@ class MothHandler(http.server.SimpleHTTPRequestHandler):
return super().translate_path(path)
def serve_front(self):
page = """
body = """
MOTH Development Server Front Page
====================
@ -96,127 +101,117 @@ There's stuff you can do here:
If you use this development server to run a contest,
you are a fool.
"""
self.serve_md(page)
payload = mdpage(body).encode('utf-8')
self.send_response(HTTPStatus.OK)
self.send_header("Content-Type", "text/html; charset=utf-8")
self.send_header("Content-Length", len(payload))
self.end_headers()
self.wfile.write(payload)
def serve_puzzles(self):
body = []
body = io.StringIO()
path = self.path.rstrip('/')
parts = path.split("/")
#raise ValueError(parts)
if len(parts) < 3:
# List all categories
body.append("# Puzzle Categories")
for i in glob.glob(os.path.join("puzzles", "*", "")):
body.append("* [{}](/{})".format(i, i))
self.serve_md('\n'.join(body))
return
title = None
cat = None
fpath = os.path.join("puzzles", parts[2])
cat = moth.Category(fpath, seed)
if len(parts) == 3:
# List all point values in a category
body.append("# Puzzles in category `{}`".format(parts[2]))
for points in cat.pointvals:
body.append("* [puzzles/{cat}/{points}](/puzzles/{cat}/{points}/)".format(cat=parts[2], points=points))
self.serve_md('\n'.join(body))
return
pzl = cat.puzzle(int(parts[3]))
if len(parts) == 4:
body.append("# {} puzzle {}".format(parts[2], parts[3]))
body.append("* Author: `{}`".format(pzl['author']))
body.append("* Summary: `{}`".format(pzl['summary']))
body.append('')
body.append("## Body")
body.append(pzl.body)
body.append("## Answers")
for a in pzl['answer']:
body.append("* `{}`".format(a))
body.append("")
body.append("## Files")
for pzl_file in pzl['files']:
body.append("* [puzzles/{cat}/{points}/{filename}]({filename})"
.format(cat=parts[2], points=pzl.points, filename=pzl_file))
if len(pzl.logs) > 0:
body.extend(["", "## Logs"])
body.append("* [Full Log File](_logs)"
.format(cat=parts[2], points=pzl.points))
body.extend(["", "### Logs Head"])
for log in pzl.logs[:10]:
body.append("* `{}`".format(log))
body.extend(["", "### Logs Tail"])
for log in pzl.logs[-10:]:
body.append("* `{}`".format(log))
self.serve_md('\n'.join(body))
return
elif len(parts) == 5:
if parts[4] == '_logs':
self.serve_puzzle_logs(pzl.logs)
else:
try:
self.serve_puzzle_file(pzl['files'][parts[4]])
fpath = os.path.join("puzzles", parts[2])
cat = moth.Category(path, seed)
puzzle = cat.puzzle(int(parts[3]))
except:
pass
if not cat:
title = "Puzzle Categories"
body.write("<ul>")
for i in glob.glob(os.path.join("puzzles", "*", "")):
body.write('<li><a href="{}">{}</a></li>'.format(i, i))
body.write("</ul>")
elif not puzzle:
# List all point values in a category
title = "Puzzles in category `{}`".format(parts[2])
body.write("<ul>")
for points in cat.pointvals:
body.write('<li><a href="/puzzles/{cat}{points}">puzzles/{cat}{points}</a></li>'.format(cat=parts[2], points=points))
body.write("</ul>")
if len(parts) == 4:
# Serve up a puzzle
title = "{} puzzle {}".format(parts[2], parts[3])
body.write("<h2>Author</h2><p>{}</p>".format(puzzle.author))
body.write("<h2>Summary</h2><p>{}</p>".format(puzzle.summary))
body.write("<h2>Body</h2>")
body.write(puzzle.html_body())
body.write("<h2>Answers</h2>")
body.write("<ul>")
for a in puzzle.answers:
body.write("<li><code>{}</code></li>".format(html.escape(a)))
body.write("</ul>")
body.write("<h2>Files</h2>")
body.write("<ul>")
for f in puzzle.files:
body.write('<li><a href="/{cat}/{points}/{filename}">{filename}</a></li>'
.format(cat=parts[2], points=puzzle.points, filename=f.name))
body.write("</ul>")
body.write("<h2>Debug Log</h2>")
body.write('<ul class="log">')
for l in puzzle.logs:
body.write("<li>{}</li>".format(html.escape(l)))
body.write("</ul>")
elif len(parts) == 5:
# Serve up a puzzle file
try:
pfile = puzzle.files[parts[4]]
except KeyError:
self.send_error(HTTPStatus.NOT_FOUND, "File not found")
return
else:
body.append("# Not Implemented Yet")
self.serve_md('\n'.join(body))
def serve_puzzle_logs(self, logs):
"""Serve a PuzzleFile object."""
ctype = self.guess_type(pfile.name)
self.send_response(HTTPStatus.OK)
self.send_header("Content-type", "text/plain; charset=utf-8")
self.send_header("Content-Type", ctype)
self.end_headers()
for log in logs:
self.wfile.write(log.encode('ascii'))
self.wfile.write(b"\n")
shutil.copyfileobj(pfile.stream, self.wfile)
return
CHUNK_SIZE = 4096
def serve_puzzle_file(self, file):
"""Serve a PuzzleFile object."""
payload = page(title, body.getvalue()).encode('utf-8')
self.send_response(HTTPStatus.OK)
self.send_header("Content-type", "application/octet-stream")
self.send_header('Content-Disposition', 'attachment; filename="{}"'.format(file.name))
if file.path is not None:
fs = os.stat(file.path)
self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
# We're using application/octet stream, so we can send the raw bytes.
self.send_header("Content-Type", "text/html; charset=utf-8")
self.send_header("Content-Length", len(payload))
self.end_headers()
chunk = file.handle.read(self.CHUNK_SIZE)
while chunk:
self.wfile.write(chunk)
chunk = file.handle.read(self.CHUNK_SIZE)
self.wfile.write(payload)
def serve_file(self):
if self.path.endswith(".md"):
self.serve_md()
def serve_file(self, path):
lastmod = None
fspath = pathlib.Path(path)
if fspath.is_dir():
ctype = "text/html; charset=utf-8"
payload = self.list_directory(path)
# it sends headers but not body
shutil.copyfileobj(payload, self.wfile)
else:
super().do_GET()
def serve_md(self, text=None):
fspathstr = self.translate_path(self.path)
fspath = pathlib.Path(fspathstr)
if not text:
ctype = self.guess_type(path)
try:
text = fspath.read_text()
payload = fspath.read_bytes()
except OSError:
self.send_error(HTTPStatus.NOT_FOUND, "File not found")
return None
content = mdpage(text)
self.send_response(HTTPStatus.OK)
self.send_header("Content-type", "text/html; charset=utf-8")
self.send_header("Content-Length", len(content))
return
if fspath.endswith(".md"):
ctype = "text/html; charset=utf-8"
content = mdpage(payload.decode('utf-8'))
payload = content.encode('utf-8')
try:
fs = fspath.stat()
self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
lastmod = self.date_time_string(fs.st_mtime)
except:
pass
self.send_response(HTTPStatus.OK)
self.send_header("Content-Type", ctype)
self.send_header("Content-Length", len(payload))
if lastmod:
self.send_header("Last-Modified", lastmod)
self.end_headers()
self.wfile.write(content.encode('utf-8'))
self.wfile.write(payload)
def run(address=('localhost', 8080)):

338
tools/moth.py
View File

@ -1,10 +1,11 @@
#!/usr/bin/python3
import argparse
from collections import defaultdict, namedtuple
import contextlib
import glob
import hashlib
from importlib.machinery import SourceFileLoader
import io
import importlib.machinery
import mistune
import os
import random
@ -18,10 +19,22 @@ def djb2hash(buf):
h = ((h * 33) + c) & 0xffffffff
return h
# We use a named tuple rather than a full class, because any random name generation has
# to be done with Puzzle's random number generator, and it's cleaner to not pass that around.
PuzzleFile = namedtuple('PuzzleFile', ['path', 'handle', 'name', 'visible'])
PuzzleFile.__doc__ = """A file associated with a puzzle.
@contextlib.contextmanager
def pushd(newdir):
curdir = os.getcwd()
os.chdir(newdir)
try:
yield
finally:
os.chdir(curdir)
# Get a big list of clean words for our answer file.
ANSWER_WORDS = [w.strip() for w in open(os.path.join(os.path.dirname(__file__),
'answer_words.txt'))]
class PuzzleFile:
"""A file associated with a puzzle.
path: The path to the original input file. May be None (when this is created from a file handle
and there is no original input.
handle: A File-like object set to read the file from. You should be able to read straight
@ -31,179 +44,92 @@ PuzzleFile.__doc__ = """A file associated with a puzzle.
the file is still expected to be accessible, but it's path must be known
(or figured out) to retrieve it."""
def __init__(self, stream, name, visible=True):
self.stream = stream
self.name = name
self.visible = visible
class Puzzle:
KNOWN_KEYS = [
'answer',
'author',
'file',
'hidden',
'name'
'resource',
'summary'
]
REQUIRED_KEYS = [
'author',
'answer',
]
SINGULAR_KEYS = [
'name'
]
# Get a big list of clean words for our answer file.
ANSWER_WORDS = [w.strip() for w in open(os.path.join(os.path.dirname(__file__),
'answer_words.txt'))]
def __init__(self, category_seed, path=None, points=None):
def __init__(self, category_seed, points):
"""A MOTH Puzzle.
:param category_seed: A byte string to use as a seed for random numbers for this puzzle.
It is combined with the puzzle points.
:param path: An optional path to a puzzle directory. The point value for the puzzle is taken
from the puzzle directories name (it must be an integer greater than zero).
Within this directory, we expect:
(optional) A puzzle.moth file in RFC2822 format. The puzzle will get its attributes
from the headers, and the body will be the puzzle description in
Markdown format.
(optional) A puzzle.py file. This is expected to have a callable called make
that takes a single positional argument (this puzzle object).
This callable can then do whatever it needs to with this object.
:param points: The point value of the puzzle. Mutually exclusive with path.
If neither of the above are given, the point value for the puzzle will have to
be set at instantiation.
For puzzle attributes, this class acts like a dictionary that in most cases assigns
always returns a list. Certain keys, however behave differently:
- Keys in Puzzle.SINGULAR_KEYS can only have one value, and writing to these overwrites
that value.
- The keys 'hidden', 'file', and 'resource' all create a new PuzzleFile object that
gets added under the 'files' key.
- The 'answer' also adds a new hash under the the 'hash' key.
:param points: The point value of the puzzle.
"""
super().__init__()
if (points is None and path is None) or (points is not None and path is not None):
raise ValueError("Either points or path must be set, but not both.")
self._dict = defaultdict(lambda: [])
if os.path.isdir(path):
self.puzzle_dir = path
else:
self.puzzle_dir = None
self.message = bytes(random.choice(messageChars) for i in range(20))
self.body = ''
# This defaults to a dict, not a list like most things
self._dict['files'] = {}
# A list of temporary files we've created that will need to be deleted.
self._temp_files = []
if path is not None:
if not os.path.isdir(path):
raise ValueError("No such directory: {}".format(path))
pathname = os.path.split(path)[-1]
try:
self.points = int(pathname)
except ValueError:
raise ValueError("Directory name must be a point value: {}".format(path))
elif points is not None:
self.points = points
self._seed = category_seed * self.points
self.rand = random.Random(self._seed)
self._logs = []
if path is not None:
files = os.listdir(path)
if 'puzzle.moth' in files:
self._read_config(open(os.path.join(path, 'puzzle.moth')))
if 'puzzle.py' in files:
# Good Lord this is dangerous as fuck.
loader = SourceFileLoader('puzzle_mod', os.path.join(path, 'puzzle.py'))
puzzle_mod = loader.load_module()
if hasattr(puzzle_mod, 'make'):
self.body = '# `puzzle.body` was not set by the `make` function'
puzzle_mod.make(self)
else:
self.body = '# `puzzle.py` does not define a `make` function'
def cleanup(self):
"""Cleanup any outstanding temporary files."""
for path in self._temp_files:
if os.path.exists(path):
try:
os.unlink(path)
except OSError:
pass
self.author = None
self.summary = None
self.answers = []
self.files = {}
self.body = io.StringIO()
self.logs = []
self.randseed = category_seed * self.points
self.rand = random.Random(self.randseed)
def log(self, msg):
"""Add a new log message to this puzzle."""
self._logs.append(msg)
self.logs.append(msg)
@property
def logs(self):
"""Get all the log messages, as strings."""
_logs = []
for log in self._logs:
if type(log) is bytes:
log = log.decode('utf-8')
elif type(log) is not str:
log = str(log)
_logs.append(log)
return _logs
def _read_config(self, stream):
"""Read a configuration file (ISO 2822)"""
body = []
def read_stream(self, stream):
header = True
for line in stream:
if header:
line = line.strip()
if not line.strip():
if not line:
header = False
continue
key, val = line.split(':', 1)
val = val.strip()
self[key] = val
key = key.lower()
if key == 'author':
self.author = val
elif key == 'summary':
self.summary = val
elif key == 'answer':
self.answers.append(val)
elif key == 'file':
parts = val.split()
name = parts[0]
hidden = False
stream = open(name, 'rb')
try:
name = parts[1]
hidden = parts[2]
except IndexError:
pass
self.files[name] = PuzzleFile(stream, name, not hidden)
else:
body.append(line)
self.body = ''.join(body)
raise ValueError("Unrecognized header field: {}".format(key))
else:
self.body.write(line)
def read_directory(self, path):
try:
fn = os.path.join(path, "puzzle.py")
loader = importlib.machinery.SourceFileLoader('puzzle_mod', fn)
puzzle_mod = loader.load_module()
except FileNotFoundError:
puzzle_mod = None
if puzzle_mod:
with pushd(path):
puzzle_mod.make(self)
else:
with open(os.path.join(path, 'puzzle.moth')) as f:
self.read_stream(f)
def random_hash(self):
"""Create a random hash from our number generator suitable for use as a filename."""
return hashlib.sha1(str(self.rand.random()).encode('ascii')).digest()
def _puzzle_file(self, path, name, visible=True):
"""Make a puzzle file instance for the given file. To add files as you would in the config
file (to 'file', 'hidden', or 'resource', simply assign to that keyword in the object:
puzzle['file'] = 'some_file.txt'
puzzle['hidden'] = 'some_hidden_file.txt'
puzzle['resource'] = 'some_file_in_the_category_resource_directory_omg_long_name.txt'
:param path: The path to the file
:param name: The name of the file. If set to None, the published file will have
a random hash as a name and have visible set to False.
:return:
"""
# Make sure it actually exists.
if not os.path.exists(path):
raise ValueError("Included file {} does not exist.".format(path))
file = open(path, 'rb')
return PuzzleFile(path=path, handle=file, name=name, visible=visible)
"""Create a file basename (no extension) with our number generator."""
return ''.join(self.random.choice(string.ascii_lowercase) for i in range(8))
def make_temp_file(self, name=None, visible=True):
"""Get a file object for adding dynamically generated data to the puzzle. When you're
done with this file, flush it, but don't close it.
:param name: The name of the file for links within the puzzle. If this is None, a name
will be generated for you.
:param visible: Whether or not the file will be visible to the user.
@ -213,64 +139,9 @@ class Puzzle:
if name is None:
name = self.random_hash()
file = tempfile.NamedTemporaryFile(mode='w+b', delete=False)
file_read = open(file.name, 'rb')
self._dict['files'][name] = PuzzleFile(path=file.name, handle=file_read,
name=name, visible=visible)
return file
def make_handle_file(self, handle, name, visible=True):
"""Add a file to the puzzle from a file handle.
:param handle: A file object or equivalent.
:param name: The name of the file in the final puzzle.
:param visible: Whether or not it's visible.
:return: None
"""
def __setitem__(self, key, value):
"""Set a value for this puzzle, as if it were set in the config file. Most values default
being added to a list. Files (regardless of type) go in a dict under ['files']. Keys
in Puzzle.SINGULAR_KEYS are single values that get overwritten with subsequent assignments.
Only keys in Puzzle.KNOWN_KEYS are accepted.
:param key:
:param value:
:return:
"""
key = key.lower()
if key in ('file', 'resource', 'hidden') and self.puzzle_dir is None:
raise KeyError("Cannot set a puzzle file for single file puzzles.")
if key == 'answer':
# Handle adding answers to the puzzle
self._dict['hash'].append(djb2hash(value.encode('utf8')))
self._dict['answer'].append(value)
elif key == 'file':
# Handle adding files to the puzzle
path = os.path.join(self.puzzle_dir, 'files', value)
self._dict['files'][value] = self._puzzle_file(path, value)
elif key == 'resource':
# Handle adding category files to the puzzle
path = os.path.join(self.puzzle_dir, '../res', value)
self._dict['files'].append(self._puzzle_file(path, value))
elif key == 'hidden':
# Handle adding secret, 'hidden' files to the puzzle.
path = os.path.join(self.puzzle_dir, 'files', value)
name = self.random_hash()
self._dict['files'].append(self._puzzle_file(path, name, visible=False))
elif key in self.SINGULAR_KEYS:
# These keys can only have one value
self._dict[key] = value
elif key in self.KNOWN_KEYS:
self._dict[key].append(value)
else:
raise KeyError("Invalid Attribute: {}".format(key))
def __getitem__(self, item):
return self._dict[item.lower()]
stream = tempfile.TemporaryFile()
self.files[name] = PuzzleFile(stream, name, visible)
return stream
def make_answer(self, word_count, sep=' '):
"""Generate and return a new answer. It's automatically added to the puzzle answer list.
@ -280,47 +151,20 @@ class Puzzle:
"""
answer = sep.join(self.rand.sample(self.ANSWER_WORDS, word_count))
self['answer'] = answer
self.answers.append(answer)
return answer
def htmlify(self):
def get_body(self):
return self.body.getvalue()
def html_body(self):
"""Format and return the markdown for the puzzle body."""
return mistune.markdown(self.body)
return mistune.markdown(self.get_body())
def publish(self):
obj = {
'author': self['author'],
'hashes': self['hashes'],
'body': self.htmlify(),
}
return obj
def hashes(self):
"Return a list of answer hashes"
def secrets(self):
obj = {
'answers': self['answers'],
'summary': self['summary'],
}
return obj
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Build a puzzle category')
parser.add_argument('puzzledir', nargs='+', help='Directory of puzzle source')
args = parser.parse_args()
for puzzledir in args.puzzledir:
puzzles = {}
secrets = {}
for puzzlePath in glob.glob(os.path.join(puzzledir, "*.moth")):
filename = os.path.basename(puzzlePath)
points, ext = os.path.splitext(filename)
points = int(points)
puzzle = Puzzle(puzzlePath, "test")
puzzles[points] = puzzle
for points in sorted(puzzles):
puzzle = puzzles[points]
print(puzzle.secrets())
return [djbhash(a) for a in self.answers]
class Category:
@ -335,8 +179,10 @@ class Category:
self.pointvals.sort()
def puzzle(self, points):
puzzle = Puzzle(self.seed, points)
path = os.path.join(self.path, str(points))
return Puzzle(self.seed, path)
puzzle.read_directory(path)
return puzzle
def puzzles(self):
for points in self.pointvals: