mirror of
https://github.com/python/cpython.git
synced 2025-11-04 07:31:38 +00:00
b3d2427f22
Open and close files manually. It prevents from leaking files, preliminary creation of output files, and accidental closing of stdin and stdout.
139 lines
4 KiB
Python
Executable file
139 lines
4 KiB
Python
Executable file
#! /usr/bin/env python3
|
|
|
|
"""
|
|
This script should be called *manually* when we want to upgrade SSLError
|
|
`library` and `reason` mnemonics to a more recent OpenSSL version.
|
|
|
|
It takes two arguments:
|
|
- the path to the OpenSSL source tree (e.g. git checkout)
|
|
- the path to the header file to be generated Modules/_ssl_data_{version}.h
|
|
- error codes are version specific
|
|
"""
|
|
|
|
import argparse
|
|
import datetime
|
|
import operator
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
|
|
parser = argparse.ArgumentParser(
|
|
description="Generate ssl_data.h from OpenSSL sources"
|
|
)
|
|
parser.add_argument("srcdir", help="OpenSSL source directory")
|
|
parser.add_argument(
|
|
"output", nargs="?", default=None
|
|
)
|
|
|
|
|
|
def _file_search(fname, pat):
|
|
with open(fname, encoding="utf-8") as f:
|
|
for line in f:
|
|
match = pat.search(line)
|
|
if match is not None:
|
|
yield match
|
|
|
|
|
|
def parse_err_h(args):
|
|
"""Parse err codes, e.g. ERR_LIB_X509: 11"""
|
|
pat = re.compile(r"#\s*define\W+ERR_LIB_(\w+)\s+(\d+)")
|
|
lib2errnum = {}
|
|
for match in _file_search(args.err_h, pat):
|
|
libname, num = match.groups()
|
|
lib2errnum[libname] = int(num)
|
|
|
|
return lib2errnum
|
|
|
|
|
|
def parse_openssl_error_text(args):
|
|
"""Parse error reasons, X509_R_AKID_MISMATCH"""
|
|
# ignore backslash line continuation for now
|
|
pat = re.compile(r"^((\w+?)_R_(\w+)):(\d+):")
|
|
for match in _file_search(args.errtxt, pat):
|
|
reason, libname, errname, num = match.groups()
|
|
if "_F_" in reason:
|
|
# ignore function codes
|
|
continue
|
|
num = int(num)
|
|
yield reason, libname, errname, num
|
|
|
|
|
|
def parse_extra_reasons(args):
|
|
"""Parse extra reasons from openssl.ec"""
|
|
pat = re.compile(r"^R\s+((\w+)_R_(\w+))\s+(\d+)")
|
|
for match in _file_search(args.errcodes, pat):
|
|
reason, libname, errname, num = match.groups()
|
|
num = int(num)
|
|
yield reason, libname, errname, num
|
|
|
|
|
|
def gen_library_codes(args):
|
|
"""Generate table short libname to numeric code"""
|
|
yield "static struct py_ssl_library_code library_codes[] = {"
|
|
for libname in sorted(args.lib2errnum):
|
|
yield f"#ifdef ERR_LIB_{libname}"
|
|
yield f' {{"{libname}", ERR_LIB_{libname}}},'
|
|
yield "#endif"
|
|
yield " { NULL }"
|
|
yield "};"
|
|
yield ""
|
|
|
|
|
|
def gen_error_codes(args):
|
|
"""Generate error code table for error reasons"""
|
|
yield "static struct py_ssl_error_code error_codes[] = {"
|
|
for reason, libname, errname, num in args.reasons:
|
|
yield f" #ifdef {reason}"
|
|
yield f' {{"{errname}", ERR_LIB_{libname}, {reason}}},'
|
|
yield " #else"
|
|
yield f' {{"{errname}", {args.lib2errnum[libname]}, {num}}},'
|
|
yield " #endif"
|
|
|
|
yield " { NULL }"
|
|
yield "};"
|
|
yield ""
|
|
|
|
|
|
def main():
|
|
args = parser.parse_args()
|
|
|
|
args.err_h = os.path.join(args.srcdir, "include", "openssl", "err.h")
|
|
if not os.path.isfile(args.err_h):
|
|
# Fall back to infile for OpenSSL 3.0.0
|
|
args.err_h += ".in"
|
|
args.errcodes = os.path.join(args.srcdir, "crypto", "err", "openssl.ec")
|
|
args.errtxt = os.path.join(args.srcdir, "crypto", "err", "openssl.txt")
|
|
|
|
if not os.path.isfile(args.errtxt):
|
|
parser.error(f"File {args.errtxt} not found in srcdir\n.")
|
|
|
|
# {X509: 11, ...}
|
|
args.lib2errnum = parse_err_h(args)
|
|
|
|
# [('X509_R_AKID_MISMATCH', 'X509', 'AKID_MISMATCH', 110), ...]
|
|
reasons = []
|
|
reasons.extend(parse_openssl_error_text(args))
|
|
reasons.extend(parse_extra_reasons(args))
|
|
# sort by libname, numeric error code
|
|
args.reasons = sorted(reasons, key=operator.itemgetter(0, 3))
|
|
|
|
lines = [
|
|
"/* File generated by Tools/ssl/make_ssl_data.py */"
|
|
f"/* Generated on {datetime.datetime.utcnow().isoformat()} */"
|
|
]
|
|
lines.extend(gen_library_codes(args))
|
|
lines.append("")
|
|
lines.extend(gen_error_codes(args))
|
|
|
|
if args.output is None:
|
|
for line in lines:
|
|
print(line)
|
|
else:
|
|
with open(args.output, 'w') as output:
|
|
for line in lines:
|
|
print(line, file=output)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|