pidgin/pidgin

Implement SNI support for the gnutls SSL plugin.
release-2.x.y
2019-12-16, Mihai Moldovan
6dba8046e1b1
Implement SNI support for the gnutls SSL plugin.

Note that gnutls is picky in regard to what it accepts as the server name - it
MUST be a domain name. IP addresses are not supported according to the
documentation.

Hence, filter out IP addresses and hope that whatever is not recognized as
such an address is actually a domain name. This will probably fail for more
exotic addresses (especially in IPv6 realm), but wiring up a full-blown parser
is too much effort and SSL plugins are not part of purple-3 anyway.

Fixes #17300
# This program takes a C source as the input and produces the list of
# all signals registered.
#
# Output is:
# <signal name="Changed">
# <arg name="new_value" type="b"/>
# </signal>
from __future__ import absolute_import, division, print_function
import re
import sys
# List "excluded" contains signals that shouldn't be exported via
# DBus. If you remove a signal from this list, please make sure
# that it does not break "make" with the configure option
# "--enable-dbus" turned on.
excluded = [\
# purple_dbus_signal_emit_purple prevents our "dbus-method-called"
# signal from being propagated to dbus.
"dbus-method-called",
]
registerregex = re.compile("purple_signal_register[^;]+\"([\w\-]+)\"[^;]+(purple_marshal_\w+)[^;]+;")
nameregex = re.compile('[-_][a-z]')
print("/* Generated by %s. Do not edit! */" % sys.argv[0])
print("const char *dbus_signals = ")
for match in registerregex.finditer(sys.stdin.read()):
signal = match.group(1)
marshal = match.group(2)
if signal in excluded:
continue
signal = nameregex.sub(lambda x:x.group()[1].upper(), '-'+signal)
print("\" <signal name='%s'>\\n\"" % signal)
args = marshal.split('_')
# ['purple', 'marshal', <return type>, '', args...]
if len(args) > 4:
for arg in args[4:]:
if arg == "POINTER":
type = 'p'
elif arg == "ENUM":
type = 'i'
elif arg == "INT":
type = 'i'
elif arg == "UINT":
type = 'u'
elif arg == "INT64":
type = 'x'
elif arg == "UINT64":
type = 't'
elif arg == "BOOLEAN":
type = 'b'
print("\" <arg type='%s'/>\\n\"" % type)
print("\" </signal>\\n\"")
print(";")