#!/usr/bin/env python3
import cgi
import glob
import http.server
import mistune
import os
import pathlib
import puzzles
import socketserver
import sys
import traceback
try:
from http.server import HTTPStatus
except ImportError:
class HTTPStatus:
NOT_FOUND = 404
OK = 200
# XXX: This will eventually cause a problem. Do something more clever here.
seed = 1
def page(title, body):
return """
{}
{}
""".format(title, body)
def mdpage(body):
try:
title, _ = body.split('\n', 1)
except ValueError:
title = "Result"
title = title.lstrip("#")
title = title.strip()
return page(title, mistune.markdown(body))
class ThreadingServer(socketserver.ThreadingMixIn, http.server.HTTPServer):
pass
class MothHandler(http.server.SimpleHTTPRequestHandler):
def handle_one_request(self):
try:
super().handle_one_request()
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)
def do_GET(self):
if self.path == "/":
self.serve_front()
elif self.path.startswith("/puzzles"):
self.serve_puzzles()
elif self.path.startswith("/files"):
self.serve_file()
else:
self.send_error(HTTPStatus.NOT_FOUND, "File not found")
def translate_path(self, path):
if path.startswith('/files'):
path = path[7:]
return super().translate_path(path)
def serve_front(self):
page = """
MOTH Development Server Front Page
====================
Yo, it's the front page.
There's stuff you can do here:
* [Available puzzles](/puzzles)
* [Raw filesystem view](/files/)
* [Documentation](/files/doc/)
* [Instructions](/files/doc/devel-server.md) for using this server
If you use this development server to run a contest,
you are a fool.
"""
self.serve_md(page)
def serve_puzzles(self):
body = []
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
fpath = os.path.join("puzzles", parts[2])
cat = puzzles.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))
self.serve_md('\n'.join(body))
return
elif len(parts) == 5:
try:
self.serve_puzzle_file(pzl['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))
CHUNK_SIZE = 4096
def serve_puzzle_file(self, file):
"""Serve a PuzzleFile object."""
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.end_headers()
chunk = file.handle.read(self.CHUNK_SIZE)
while chunk:
self.wfile.write(chunk)
chunk = file.handle.read(self.CHUNK_SIZE)
def serve_file(self):
if self.path.endswith(".md"):
self.serve_md()
else:
super().do_GET()
def serve_md(self, text=None):
fspathstr = self.translate_path(self.path)
fspath = pathlib.Path(fspathstr)
if not text:
try:
text = fspath.read_text()
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))
try:
fs = fspath.stat()
self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
except:
pass
self.end_headers()
self.wfile.write(content.encode('utf-8'))
def run(address=('localhost', 8080)):
httpd = ThreadingServer(address, MothHandler)
print("=== Listening on http://{}:{}/".format(address[0], address[1]))
httpd.serve_forever()
if __name__ == '__main__':
run()