87 lines
3.3 KiB
Python
87 lines
3.3 KiB
Python
# Copyright (c) 2020-2024 Pacman Development Team <pacman-dev@lists.archlinux.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import http
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import http.server
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import sys
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import re
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class pmHTTPServer(http.server.ThreadingHTTPServer):
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pass
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class pmHTTPRequestHandler(http.server.BaseHTTPRequestHandler):
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"""BaseHTTPRequestHandler subclass with helper methods and common setup"""
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logfile = sys.stderr
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def respond(self, response, headers={}, code=200):
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self.protocol_version = "HTTP/1.1"
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self.send_response(code)
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for header, value in headers.items():
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self.send_header(header, value)
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self.end_headers()
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self.wfile.write(response)
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def parse_range_bytes(self, text):
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parser = re.compile(r'^bytes=(\d+)-(\d+)?$')
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if m := parser.match(text):
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return map(lambda d: None if d is None else int(d), m.groups())
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else:
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raise ValueError("Unrecognized Range value")
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def respond_bytes(self, response, headers={}, code=200):
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headers = headers.copy()
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if code == 200 and self.headers['Range']:
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(start, end) = self.parse_range_bytes(self.headers['Range'])
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code = 206
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response = response[start:end]
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headers.setdefault('Content-Range', 'bytes */%s' % (len(response)))
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headers.setdefault('Content-Type', "application/octet-stream")
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headers.setdefault('Content-Length', str(len(response)))
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self.respond(response, headers, code)
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def respond_string(self, response, headers={}, code=200):
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headers = headers.copy()
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headers.setdefault('Content-Type', 'text/plain; charset=utf-8')
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self.respond_bytes(response.encode('UTF-8'), headers, code)
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def log_message(self, format, *args):
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if callable(self.logfile):
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self.logfile = self.logfile()
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self.logfile.write("%s - - [%s] %s\n" %
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(self.address_string(),
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self.log_date_time_string(),
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format%args))
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class pmStringHTTPRequestHandler(pmHTTPRequestHandler):
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"""pmHTTPRequestHandler subclass to respond with simple string messages"""
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responses = dict()
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def do_GET(self):
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response = self.responses.get(self.path, self.responses.get(''))
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if response is not None:
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if isinstance(response, dict):
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self.respond_string(
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response.get('body', ''),
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headers=response.get('headers', {}),
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code=response.get('code', 200))
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elif isinstance(response, bytes):
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self.respond_bytes(response)
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else:
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self.respond_string(response)
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else:
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self.send_error(http.HTTPStatus.NOT_FOUND);
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