diff options
Diffstat (limited to 'Lib/netrc.py')
| -rw-r--r-- | Lib/netrc.py | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/Lib/netrc.py b/Lib/netrc.py index b285fd8e357..2f502c1d533 100644 --- a/Lib/netrc.py +++ b/Lib/netrc.py @@ -7,6 +7,19 @@ import os, stat __all__ = ["netrc", "NetrcParseError"] +def _can_security_check(): + # On WASI, getuid() is indicated as a stub but it may also be missing. + return os.name == 'posix' and hasattr(os, 'getuid') + + +def _getpwuid(uid): + try: + import pwd + return pwd.getpwuid(uid)[0] + except (ImportError, LookupError): + return f'uid {uid}' + + class NetrcParseError(Exception): """Exception raised on syntax errors in the .netrc file.""" def __init__(self, msg, filename=None, lineno=None): @@ -142,21 +155,15 @@ class netrc: self._security_check(fp, default_netrc, self.hosts[entryname][0]) def _security_check(self, fp, default_netrc, login): - if os.name == 'posix' and default_netrc and login != "anonymous": + if _can_security_check() and default_netrc and login != "anonymous": prop = os.fstat(fp.fileno()) - if prop.st_uid != os.getuid(): - import pwd - try: - fowner = pwd.getpwuid(prop.st_uid)[0] - except KeyError: - fowner = 'uid %s' % prop.st_uid - try: - user = pwd.getpwuid(os.getuid())[0] - except KeyError: - user = 'uid %s' % os.getuid() + current_user_id = os.getuid() + if prop.st_uid != current_user_id: + fowner = _getpwuid(prop.st_uid) + user = _getpwuid(current_user_id) raise NetrcParseError( - (f"~/.netrc file owner ({fowner}, {user}) does not match" - " current user")) + f"~/.netrc file owner ({fowner}) does not match" + f" current user ({user})") if (prop.st_mode & (stat.S_IRWXG | stat.S_IRWXO)): raise NetrcParseError( "~/.netrc access too permissive: access" |