Mercurial > hg
view tests/httpserverauth.py @ 44909:d452acc8cce8 stable
flags: account for flag change when tracking rename relevant to merge
There are some logic filtering rename to the one relevant to the merge. That
logic was oblivious of flag change, leading to exec flag being dropped when
merged with a renamed.
There are two others bugs affecting this scenario. This patch fix the was where
there is not modification involved except for the flag change. Fixes for the
other bug are coming in later changesets.
Differential Revision: https://phab.mercurial-scm.org/D8531
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Sat, 16 May 2020 20:37:56 +0200 |
parents | 2372284d9457 |
children | 6000f5b25c9b |
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from __future__ import absolute_import import base64 import hashlib from mercurial.hgweb import common from mercurial import node def parse_keqv_list(req, l): """Parse list of key=value strings where keys are not duplicated.""" parsed = {} for elt in l: k, v = elt.split(b'=', 1) if v[0:1] == b'"' and v[-1:] == b'"': v = v[1:-1] parsed[k] = v return parsed class digestauthserver(object): def __init__(self): self._user_hashes = {} def gethashers(self): def _md5sum(x): m = hashlib.md5() m.update(x) return node.hex(m.digest()) h = _md5sum kd = lambda s, d, h=h: h(b"%s:%s" % (s, d)) return h, kd def adduser(self, user, password, realm): h, kd = self.gethashers() a1 = h(b'%s:%s:%s' % (user, realm, password)) self._user_hashes[(user, realm)] = a1 def makechallenge(self, realm): # We aren't testing the protocol here, just that the bytes make the # proper round trip. So hardcoded seems fine. nonce = b'064af982c5b571cea6450d8eda91c20d' return b'realm="%s", nonce="%s", algorithm=MD5, qop="auth"' % ( realm, nonce, ) def checkauth(self, req, header): log = req.rawenv[b'wsgi.errors'] h, kd = self.gethashers() resp = parse_keqv_list(req, header.split(b', ')) if resp.get(b'algorithm', b'MD5').upper() != b'MD5': log.write(b'Unsupported algorithm: %s' % resp.get(b'algorithm')) raise common.ErrorResponse( common.HTTP_FORBIDDEN, b"unknown algorithm" ) user = resp[b'username'] realm = resp[b'realm'] nonce = resp[b'nonce'] ha1 = self._user_hashes.get((user, realm)) if not ha1: log.write(b'No hash found for user/realm "%s/%s"' % (user, realm)) raise common.ErrorResponse(common.HTTP_FORBIDDEN, b"bad user") qop = resp.get(b'qop', b'auth') if qop != b'auth': log.write(b"Unsupported qop: %s" % qop) raise common.ErrorResponse(common.HTTP_FORBIDDEN, b"bad qop") cnonce, ncvalue = resp.get(b'cnonce'), resp.get(b'nc') if not cnonce or not ncvalue: log.write(b'No cnonce (%s) or ncvalue (%s)' % (cnonce, ncvalue)) raise common.ErrorResponse(common.HTTP_FORBIDDEN, b"no cnonce") a2 = b'%s:%s' % (req.method, resp[b'uri']) noncebit = b"%s:%s:%s:%s:%s" % (nonce, ncvalue, cnonce, qop, h(a2)) respdig = kd(ha1, noncebit) if respdig != resp[b'response']: log.write( b'User/realm "%s/%s" gave %s, but expected %s' % (user, realm, resp[b'response'], respdig) ) return False return True digest = digestauthserver() def perform_authentication(hgweb, req, op): auth = req.headers.get(b'Authorization') if req.headers.get(b'X-HgTest-AuthType') == b'Digest': if not auth: challenge = digest.makechallenge(b'mercurial') raise common.ErrorResponse( common.HTTP_UNAUTHORIZED, b'who', [(b'WWW-Authenticate', b'Digest %s' % challenge)], ) if not digest.checkauth(req, auth[7:]): raise common.ErrorResponse(common.HTTP_FORBIDDEN, b'no') return if not auth: raise common.ErrorResponse( common.HTTP_UNAUTHORIZED, b'who', [(b'WWW-Authenticate', b'Basic Realm="mercurial"')], ) if base64.b64decode(auth.split()[1]).split(b':', 1) != [b'user', b'pass']: raise common.ErrorResponse(common.HTTP_FORBIDDEN, b'no') def extsetup(ui): common.permhooks.insert(0, perform_authentication) digest.adduser(b'user', b'pass', b'mercurial')