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rework server listen code

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This commit is contained in:
Peter Bieringer 2024-03-13 22:28:50 +01:00
parent 7d27b4eacc
commit 0e1d502d0a
1 changed files with 14 additions and 36 deletions
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50
radicale/server.py
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@ -3,6 +3,7 @@
# Copyright © 2008 Pascal Halter
# Copyright © 2008-2017 Guillaume Ayoub
# Copyright © 2017-2019 Unrud <unrud@outlook.com>
# Copyright © 2024-2024 Peter Bieringer <pb@bieringer.de>
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@ -283,45 +284,22 @@ def serve(configuration: config.Configuration,
servers = {}
try:
hosts: List[Tuple[str, int]] = configuration.get("server", "hosts")
for address in hosts:
# Try to bind sockets for IPv4 and IPv6
possible_families = (socket.AF_INET, socket.AF_INET6)
bind_ok = False
for i, family in enumerate(possible_families):
is_last = i == len(possible_families) - 1
for AddressPort in hosts:
# retrieve IPv4/IPv6 address of address
try:
getaddrinfo = socket.getaddrinfo(AddressPort[0], AddressPort[1], 0, socket.SOCK_STREAM, socket.IPPROTO_TCP);
except OSError as e:
logger.warn("cannot retrieve IPv4 or IPv6 address of: %s" % (format_address(AddressPort)))
continue
logger.debug("getaddrinfo of '%s': %s" % (format_address(AddressPort), getaddrinfo))
for (AddressFamily, SocketKind, SocketProto, SocketFlags, SocketAddress) in getaddrinfo:
logger.debug("try to create server socket on '%s'" % (format_address(SocketAddress)))
try:
server = server_class(configuration, family, address,
RequestHandler)
server = server_class(configuration, AddressFamily, (SocketAddress[0], SocketAddress[1]), RequestHandler)
except OSError as e:
# Ignore unsupported families (only one must work)
if ((bind_ok or not is_last) and (
isinstance(e, socket.gaierror) and (
# Hostname does not exist or doesn't have
# address for address family
# Linux: temporary failure in name resolution (-3)
e.errno == socket.EAI_AGAIN or
# macOS: IPv6 address for INET address family
e.errno == socket.EAI_NONAME or
# Address not for address family
e.errno == COMPAT_EAI_ADDRFAMILY or
e.errno == COMPAT_EAI_NODATA) or
# Workaround for PyPy
str(e) == "address family mismatched" or
# Address family not available (e.g. IPv6 disabled)
# macOS: IPv4 address for INET6 address family with
# IPV6_V6ONLY set
e.errno == errno.EADDRNOTAVAIL or
# Device or resource busy (16)
e.errno == errno.EBUSY or
# Address family not supported
e.errno == errno.EAFNOSUPPORT or
# Protocol not supported
e.errno == errno.EPROTONOSUPPORT)):
continue
raise RuntimeError("Failed to start server %r: %s" % (
format_address(address), e)) from e
logger.warn("cannot create server socket on '%s': %s" % (format_address(SocketAddress), e))
continue
servers[server.socket] = server
bind_ok = True
server.set_app(application)
logger.info("Listening on %r%s",
format_address(server.server_address),