2016-10-17 23:02:05 -06:00
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#!/usr/bin/env python3
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2016-10-14 22:26:47 -06:00
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2016-10-15 21:47:50 -06:00
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import glob
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import html
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2016-10-14 22:26:47 -06:00
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import http.server
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import io
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import mistune
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import moth
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import os
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import pathlib
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import shutil
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import socketserver
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import sys
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import traceback
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2016-10-17 19:58:51 -06:00
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try:
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from http.server import HTTPStatus
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except ImportError:
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class HTTPStatus:
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OK = (200, 'OK', 'Request fulfilled, document follows')
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NOT_FOUND = (404, 'Not Found', 'Nothing matches the given URI')
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INTERNAL_SERVER_ERROR = (500, 'Internal Server Error', 'Server got itself in trouble')
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2016-10-14 22:26:47 -06:00
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2016-10-17 23:02:05 -06:00
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# XXX: This will eventually cause a problem. Do something more clever here.
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seed = 1
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2016-10-17 20:28:24 -06:00
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2016-10-14 22:26:47 -06:00
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def page(title, body):
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return """<!DOCTYPE html>
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<html>
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<head>
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<title>{title}</title>
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<link rel="stylesheet" href="/files/src/www/res/style.css">
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</head>
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<body>
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<h1>{title}</h1>
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<div id="preview" class="terminal">
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{body}
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</div>
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</body>
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</html>""".format(title=title, body=body)
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def mdpage(body):
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try:
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title, _ = body.split('\n', 1)
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except ValueError:
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title = "Result"
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title = title.lstrip("#")
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title = title.strip()
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return page(title, mistune.markdown(body))
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class ThreadingServer(socketserver.ThreadingMixIn, http.server.HTTPServer):
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pass
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class MothHandler(http.server.SimpleHTTPRequestHandler):
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def handle_one_request(self):
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try:
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super().handle_one_request()
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except:
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tbtype, value, tb = sys.exc_info()
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tblist = traceback.format_tb(tb, None) + traceback.format_exception_only(tbtype, value)
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payload = ("Traceback (most recent call last)\n" +
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"".join(tblist[:-1]) +
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tblist[-1]).encode('utf-8')
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self.send_response(HTTPStatus.INTERNAL_SERVER_ERROR)
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self.send_header("Content-Type", "text/plain; charset=utf-8")
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self.send_header("Content-Length", payload)
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self.end_headers()
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self.wfile.write(payload)
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def do_GET(self):
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if self.path == "/":
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self.serve_front()
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elif self.path.startswith("/puzzles"):
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self.serve_puzzles()
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elif self.path.startswith("/files"):
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self.serve_file(self.translate_path(self.path))
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else:
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self.send_error(HTTPStatus.NOT_FOUND, "File not found")
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def translate_path(self, path):
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if path.startswith('/files'):
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path = path[7:]
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return super().translate_path(path)
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def serve_front(self):
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body = """
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MOTH Development Server Front Page
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====================
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Yo, it's the front page.
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There's stuff you can do here:
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* [Available puzzles](/puzzles)
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* [Raw filesystem view](/files/)
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* [Documentation](/files/docs/)
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* [Instructions](/files/docs/devel-server.md) for using this server
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If you use this development server to run a contest,
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you are a fool.
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"""
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payload = mdpage(body).encode('utf-8')
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self.send_response(HTTPStatus.OK)
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self.send_header("Content-Type", "text/html; charset=utf-8")
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self.send_header("Content-Length", len(payload))
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self.end_headers()
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self.wfile.write(payload)
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def serve_puzzles(self):
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body = io.StringIO()
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path = self.path.rstrip('/')
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parts = path.split("/")
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title = None
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fpath = None
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points = None
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cat = None
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puzzle = None
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try:
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fpath = os.path.join("puzzles", parts[2])
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points = int(parts[3])
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except:
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pass
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if fpath:
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cat = moth.Category(fpath, seed)
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if points:
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puzzle = cat.puzzle(int(parts[3]))
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if not cat:
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title = "Puzzle Categories"
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body.write("<ul>")
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for i in sorted(glob.glob(os.path.join("puzzles", "*", ""))):
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body.write('<li><a href="{}">{}</a></li>'.format(i, i))
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body.write("</ul>")
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elif not puzzle:
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# List all point values in a category
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title = "Puzzles in category `{}`".format(parts[2])
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body.write("<ul>")
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for points in cat.pointvals:
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body.write('<li><a href="/puzzles/{cat}/{points}">puzzles/{cat}/{points}</a></li>'.format(cat=parts[2], points=points))
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body.write("</ul>")
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elif len(parts) == 4:
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# Serve up a puzzle
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title = "{} puzzle {}".format(parts[2], parts[3])
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body.write("<h2>Body</h2>")
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body.write(puzzle.html_body())
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body.write("<h2>Files</h2>")
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body.write("<ul>")
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for name in puzzle.files:
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body.write('<li><a href="/puzzles/{cat}/{points}/{filename}">{filename}</a></li>'
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.format(cat=parts[2], points=puzzle.points, filename=name))
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body.write("</ul>")
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body.write("<h2>Answers</h2>")
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body.write("<ul>")
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assert puzzle.answers, 'No answers defined'
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for a in puzzle.answers:
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body.write("<li><code>{}</code></li>".format(html.escape(a)))
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body.write("</ul>")
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body.write("<h2>Author</h2><p>{}</p>".format(puzzle.author))
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body.write("<h2>Summary</h2><p>{}</p>".format(puzzle.summary))
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body.write("<h2>Debug Log</h2>")
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body.write('<ul class="log">')
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for l in puzzle.logs:
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body.write("<li>{}</li>".format(html.escape(l)))
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body.write("</ul>")
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elif len(parts) == 5:
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# Serve up a puzzle file
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try:
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pfile = puzzle.files[parts[4]]
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except KeyError:
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self.send_error(HTTPStatus.NOT_FOUND, "File not found")
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return
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ctype = self.guess_type(pfile.name)
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self.send_response(HTTPStatus.OK)
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self.send_header("Content-Type", ctype)
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self.end_headers()
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shutil.copyfileobj(pfile.stream, self.wfile)
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return
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payload = page(title, body.getvalue()).encode('utf-8')
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self.send_response(HTTPStatus.OK)
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self.send_header("Content-Type", "text/html; charset=utf-8")
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self.send_header("Content-Length", len(payload))
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self.end_headers()
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self.wfile.write(payload)
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def serve_file(self, path):
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lastmod = None
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fspath = pathlib.Path(path)
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if fspath.is_dir():
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ctype = "text/html; charset=utf-8"
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payload = self.list_directory(path)
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# it sends headers but not body
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shutil.copyfileobj(payload, self.wfile)
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else:
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ctype = self.guess_type(path)
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try:
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payload = fspath.read_bytes()
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except OSError:
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self.send_error(HTTPStatus.NOT_FOUND, "File not found")
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return
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if path.endswith(".md"):
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ctype = "text/html; charset=utf-8"
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content = mdpage(payload.decode('utf-8'))
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payload = content.encode('utf-8')
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try:
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fs = fspath.stat()
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lastmod = self.date_time_string(fs.st_mtime)
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except:
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pass
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self.send_response(HTTPStatus.OK)
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self.send_header("Content-Type", ctype)
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self.send_header("Content-Length", len(payload))
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if lastmod:
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self.send_header("Last-Modified", lastmod)
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self.end_headers()
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self.wfile.write(payload)
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def run(address=('localhost', 8080)):
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httpd = ThreadingServer(address, MothHandler)
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print("=== Listening on http://{}:{}/".format(address[0], address[1]))
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httpd.serve_forever()
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if __name__ == '__main__':
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run()
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