2015-09-03 21:09:35 +00:00
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import http.server
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2016-07-05 07:24:08 +00:00
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import mimetypes
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2015-10-03 23:29:52 +00:00
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import os
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2016-07-05 07:24:08 +00:00
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import urllib.parse
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2016-07-20 03:31:47 +00:00
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import pathlib
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2016-07-05 07:24:08 +00:00
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import random
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2016-07-20 03:31:47 +00:00
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import socketserver
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2016-07-05 07:24:08 +00:00
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import sys
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2016-07-20 03:31:47 +00:00
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import types
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2016-07-05 07:24:08 +00:00
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2016-07-10 04:38:49 +00:00
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sys.path.append('C:\\git\\else\\Bytestring'); import bytestring
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2016-08-09 08:33:36 +00:00
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sys.path.append('C:\\git\\else\\Pathclass'); import pathclass
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2016-07-10 04:38:49 +00:00
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sys.path.append('C:\\git\\else\\Ratelimiter'); import ratelimiter
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2016-07-20 03:31:47 +00:00
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sys.path.append('C:\\git\\else\\SpinalTap'); import spinal
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2015-09-03 21:09:35 +00:00
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2016-07-20 03:31:47 +00:00
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FILE_READ_CHUNK = bytestring.MIBIBYTE
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2016-08-18 01:24:38 +00:00
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RATELIMITER = ratelimiter.Ratelimiter(16 * bytestring.MIBIBYTE)
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2016-07-20 03:31:47 +00:00
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# The paths which the user may access.
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# Attempting to access anything outside will 403.
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# These are convered to Path objects after that class definition.
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OKAY_PATHS = set(['files', 'favicon.ico'])
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2016-07-05 07:24:08 +00:00
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OPENDIR_TEMPLATE = '''
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<html>
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<body>
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<meta charset="UTF-8">
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<style type="text/css">Body {{font-family:Consolas}}</style>
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<table style="width: 95%">
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{entries}
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</table>
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</body>
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</html>
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'''
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2016-08-09 08:33:36 +00:00
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class Path(pathclass.Path):
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2016-07-20 03:31:47 +00:00
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'''
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2016-08-09 08:33:36 +00:00
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Add some server-specific abilities to the Pathclass
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2016-07-20 03:31:47 +00:00
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'''
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2016-07-05 07:24:08 +00:00
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def __init__(self, path):
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2016-07-20 03:31:47 +00:00
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path = urllib.parse.unquote(path)
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path = path.strip('/')
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2016-08-09 08:33:36 +00:00
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pathclass.Path.__init__(self, path)
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2016-07-05 07:24:08 +00:00
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2016-07-20 03:31:47 +00:00
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@property
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def allowed(self):
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return any(self in okay for okay in OKAY_PATHS)
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2016-07-05 07:24:08 +00:00
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def anchor(self, display_name=None):
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if display_name is None:
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display_name = self.basename
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2016-07-20 03:31:47 +00:00
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2016-07-05 07:24:08 +00:00
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if self.is_dir:
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# Folder emoji
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icon = '\U0001F4C1'
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else:
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# Diamond emoji, because there's not one for files.
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icon = '\U0001F48E'
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2016-07-10 04:38:49 +00:00
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2016-07-20 03:31:47 +00:00
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#print('anchor', path)
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2016-07-10 04:38:49 +00:00
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a = '<a href="{full}">{icon} {display}</a>'.format(
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2016-07-20 03:31:47 +00:00
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full=self.url_path,
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2016-07-10 04:38:49 +00:00
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icon=icon,
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display=display_name,
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)
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return a
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2016-07-05 07:24:08 +00:00
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def table_row(self, display_name=None, shaded=False):
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2016-07-20 03:31:47 +00:00
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form = '<tr style="background-color:#{bg}"><td style="width:90%">{anchor}</td><td>{size}</td></tr>'
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size = self.size
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if size is None:
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size = ''
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else:
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size = bytestring.bytestring(size)
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2016-07-05 07:24:08 +00:00
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bg = 'ddd' if shaded else 'fff';
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2016-07-10 04:38:49 +00:00
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row = form.format(
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bg=bg,
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anchor=self.anchor(display_name=display_name),
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size=size,
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)
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2016-07-05 07:24:08 +00:00
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return row
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2015-09-03 21:09:35 +00:00
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2016-07-20 03:31:47 +00:00
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@property
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def url_path(self):
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url = self.relative_path
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url = url.replace(os.sep, '/')
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url = '/' + url
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url = urllib.parse.quote(url)
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return url
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OKAY_PATHS = set(Path(p) for p in OKAY_PATHS)
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2015-10-03 23:29:52 +00:00
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2015-09-03 21:09:35 +00:00
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class RequestHandler(http.server.BaseHTTPRequestHandler):
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2016-07-20 03:31:47 +00:00
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def write(self, data):
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if isinstance(data, str):
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data = data.encode('utf-8')
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if isinstance(data, types.GeneratorType):
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for chunk in data:
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self.wfile.write(chunk)
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2016-08-18 01:24:38 +00:00
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RATELIMITER.limit(len(chunk))
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2016-07-20 03:31:47 +00:00
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else:
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self.wfile.write(data)
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2015-09-03 21:09:35 +00:00
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2016-07-20 03:31:47 +00:00
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def read_filebytes(self, path, range_min=None, range_max=None):
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2015-10-03 23:29:52 +00:00
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#print(path)
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2016-07-20 03:31:47 +00:00
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if path.is_file:
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if range_min is None:
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range_min = 0
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if range_max is None:
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range_max = path.size
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range_span = range_max - range_min
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#print('read span', range_min, range_max, range_span)
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f = open(path.absolute_path, 'rb')
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f.seek(range_min)
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sent_amount = 0
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while sent_amount < range_span:
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chunk = f.read(FILE_READ_CHUNK)
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if len(chunk) == 0:
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break
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yield chunk
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sent_amount += len(chunk)
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#print('I read', len(fr))
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2015-10-03 23:29:52 +00:00
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f.close()
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2016-07-05 07:24:08 +00:00
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2016-07-20 03:31:47 +00:00
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elif path.is_dir:
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2016-07-05 07:24:08 +00:00
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text = generate_opendir(path)
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text = text.encode('utf-8')
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2016-07-20 03:31:47 +00:00
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yield text
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2016-07-05 07:24:08 +00:00
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2016-07-20 03:31:47 +00:00
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else:
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self.send_error(404)
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yield bytes()
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2015-10-03 23:29:52 +00:00
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2015-09-03 21:09:35 +00:00
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def do_GET(self):
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#print(dir(self))
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2016-07-20 03:31:47 +00:00
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path = Path(self.path)
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2016-07-10 04:38:49 +00:00
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if self.send_path_validation_error(path):
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2015-10-03 23:29:52 +00:00
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return
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2016-07-05 07:24:08 +00:00
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2016-07-20 03:31:47 +00:00
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range_min = None
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range_max = None
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status_code = 200
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headers = {}
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2016-07-05 07:24:08 +00:00
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2016-07-20 03:31:47 +00:00
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if path.is_file:
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file_size = path.size
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if 'range' in self.headers:
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desired_range = self.headers['range']
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desired_range = desired_range.lower()
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desired_range = desired_range.split('bytes=')[-1]
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helper = lambda x: int(x) if x and x.isdigit() else None
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if '-' in desired_range:
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(desired_min, desired_max) = desired_range.split('-')
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#print('desire', desired_min, desired_max)
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range_min = helper(desired_min)
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range_max = helper(desired_max)
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else:
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range_min = helper(desired_range)
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if range_min is None:
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range_min = 0
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if range_max is None:
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range_max = file_size
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# because ranges are 0 indexed
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range_max = min(range_max, file_size - 1)
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range_min = max(range_min, 0)
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status_code = 206
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range_header = 'bytes {min}-{max}/{outof}'.format(
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min=range_min,
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max=range_max,
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outof=file_size,
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)
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headers['Content-Range'] = range_header
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headers['Accept-Ranges'] = 'bytes'
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content_length = (range_max - range_min) + 1
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else:
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content_length = file_size
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headers['Content-length'] = content_length
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mime = mimetypes.guess_type(path.absolute_path)[0]
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2016-07-05 07:24:08 +00:00
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if mime is not None:
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#print(mime)
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2016-07-20 03:31:47 +00:00
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headers['Content-type'] = mime
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2016-07-10 04:38:49 +00:00
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2016-07-20 03:31:47 +00:00
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self.send_response(status_code)
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for (key, value) in headers.items():
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self.send_header(key, value)
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2016-07-05 07:24:08 +00:00
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2016-07-20 03:31:47 +00:00
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d = self.read_filebytes(path, range_min=range_min, range_max=range_max)
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2016-07-10 04:38:49 +00:00
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#print('write')
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self.end_headers()
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2015-10-03 23:29:52 +00:00
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self.write(d)
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2015-09-03 21:09:35 +00:00
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2016-07-10 04:38:49 +00:00
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def do_HEAD(self):
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2016-07-20 03:31:47 +00:00
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path = Path(self.path)
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2016-07-10 04:38:49 +00:00
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if self.send_path_validation_error(path):
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return
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2016-07-20 03:31:47 +00:00
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status_code = 200
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2016-08-03 02:06:59 +00:00
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self.send_response(status_code)
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2016-07-10 04:38:49 +00:00
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if path.is_dir:
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mime = 'text/html'
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else:
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2016-07-20 03:31:47 +00:00
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mime = mimetypes.guess_type(path.absolute_path)[0]
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self.send_header('Content-length', path.size)
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2016-07-10 04:38:49 +00:00
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if mime is not None:
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self.send_header('Content-type', mime)
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self.end_headers()
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def send_path_validation_error(self, path):
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2016-07-20 03:31:47 +00:00
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if not path.allowed:
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self.send_error(403, 'Stop that!')
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2016-07-10 04:38:49 +00:00
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return True
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return False
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2016-07-20 03:31:47 +00:00
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class ThreadedServer(socketserver.ThreadingMixIn, http.server.HTTPServer):
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'''
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Thanks root and twasbrillig http://stackoverflow.com/a/14089457
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'''
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pass
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2016-07-05 07:24:08 +00:00
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def generate_opendir(path):
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2016-07-10 04:38:49 +00:00
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#print('Listdir:', path)
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2016-07-20 03:31:47 +00:00
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items = os.listdir(path.absolute_path)
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items = [os.path.join(path.absolute_path, f) for f in items]
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#print(items)
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2016-07-10 04:38:49 +00:00
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# This places directories above files, each ordered alphabetically
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items.sort(key=str.lower)
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2016-07-05 07:24:08 +00:00
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directories = []
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files = []
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for item in items:
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if os.path.isdir(item):
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directories.append(item)
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else:
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files.append(item)
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2016-07-10 04:38:49 +00:00
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items = directories + files
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items = [Path(f) for f in items]
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2016-07-05 07:24:08 +00:00
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entries = []
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2016-07-20 03:31:47 +00:00
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if any(path.absolute_path == okay.absolute_path for okay in OKAY_PATHS):
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# This is different than a permission check, we're seeing if they're
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# actually at the top, in which case they don't need an up button.
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pass
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else:
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entry = path.parent.table_row(display_name='up')
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entries.append(entry)
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2016-07-10 04:38:49 +00:00
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2016-07-05 07:24:08 +00:00
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shaded = True
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2016-07-10 04:38:49 +00:00
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for item in items:
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entry = item.table_row(shaded=shaded)
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2016-07-05 07:24:08 +00:00
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entries.append(entry)
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shaded = not shaded
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2016-07-10 04:38:49 +00:00
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2016-07-05 07:24:08 +00:00
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entries = '\n'.join(entries)
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text = OPENDIR_TEMPLATE.format(entries=entries)
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return text
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def generate_random_filename(original_filename='', length=8):
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import random
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2016-07-20 03:31:47 +00:00
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bits = length * 44
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2016-07-05 07:24:08 +00:00
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bits = random.getrandbits(bits)
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identifier = '{:x}'.format(bits).rjust(length, '0')
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return identifier
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2016-07-20 03:31:47 +00:00
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def main():
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server = ThreadedServer(('', 32768), RequestHandler)
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print('server starting')
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server.serve_forever()
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2016-07-05 07:24:08 +00:00
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2016-07-20 03:31:47 +00:00
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|
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if __name__ == '__main__':
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|
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main()
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