Mercurial > hg
view mercurial/sslutil.py @ 18510:f254ab6207ae stable
subrepo: use sharepath if available when locating the source repo
This is an alternative fix for issue3518, enabling sharing of repositories with
subrepos, without unconditionally setting the default path in the resulting
repo's hgrc file. Better test coverage is added here, but won't prove this code
is working until fd903f89e42b is backed out.
The problem with the original fix is, if a default path is not available to be
copied over from the share source, the default path on the resulting repo is set
to the source location. Since that's where the actual repository is stored, the
path is essentially self-referential, so push, pull, incoming and outgoing
effectively operate on itself. While incoming and outgoing make it look like
nothing was changed, push currently hangs (see issue3657). In this case where
there is not a real default path, these operations should abort with
"default(-push) not found", like the source repo would. Note this problem with
the original fix affected repos without subrepos too.
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Tue, 27 Nov 2012 20:56:27 -0500 |
parents | 9cf7c9d529d0 |
children | 93b03a222c3e |
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# sslutil.py - SSL handling for mercurial # # Copyright 2005, 2006, 2007, 2008 Matt Mackall <mpm@selenic.com> # Copyright 2006, 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br> # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import os from mercurial import util from mercurial.i18n import _ try: # avoid using deprecated/broken FakeSocket in python 2.6 import ssl CERT_REQUIRED = ssl.CERT_REQUIRED def ssl_wrap_socket(sock, keyfile, certfile, cert_reqs=ssl.CERT_NONE, ca_certs=None): sslsocket = ssl.wrap_socket(sock, keyfile, certfile, cert_reqs=cert_reqs, ca_certs=ca_certs) # check if wrap_socket failed silently because socket had been closed # - see http://bugs.python.org/issue13721 if not sslsocket.cipher(): raise util.Abort(_('ssl connection failed')) return sslsocket except ImportError: CERT_REQUIRED = 2 import socket, httplib def ssl_wrap_socket(sock, key_file, cert_file, cert_reqs=CERT_REQUIRED, ca_certs=None): if not util.safehasattr(socket, 'ssl'): raise util.Abort(_('Python SSL support not found')) if ca_certs: raise util.Abort(_( 'certificate checking requires Python 2.6')) ssl = socket.ssl(sock, key_file, cert_file) return httplib.FakeSocket(sock, ssl) def _verifycert(cert, hostname): '''Verify that cert (in socket.getpeercert() format) matches hostname. CRLs is not handled. Returns error message if any problems are found and None on success. ''' if not cert: return _('no certificate received') dnsname = hostname.lower() def matchdnsname(certname): return (certname == dnsname or '.' in dnsname and certname == '*.' + dnsname.split('.', 1)[1]) san = cert.get('subjectAltName', []) if san: certnames = [value.lower() for key, value in san if key == 'DNS'] for name in certnames: if matchdnsname(name): return None if certnames: return _('certificate is for %s') % ', '.join(certnames) # subject is only checked when subjectAltName is empty for s in cert.get('subject', []): key, value = s[0] if key == 'commonName': try: # 'subject' entries are unicode certname = value.lower().encode('ascii') except UnicodeEncodeError: return _('IDN in certificate not supported') if matchdnsname(certname): return None return _('certificate is for %s') % certname return _('no commonName or subjectAltName found in certificate') # CERT_REQUIRED means fetch the cert from the server all the time AND # validate it against the CA store provided in web.cacerts. # # We COMPLETELY ignore CERT_REQUIRED on Python <= 2.5, as it's totally # busted on those versions. def sslkwargs(ui, host): cacerts = ui.config('web', 'cacerts') hostfingerprint = ui.config('hostfingerprints', host) if cacerts and not hostfingerprint: cacerts = util.expandpath(cacerts) if not os.path.exists(cacerts): raise util.Abort(_('could not find web.cacerts: %s') % cacerts) return {'ca_certs': cacerts, 'cert_reqs': CERT_REQUIRED, } return {} class validator(object): def __init__(self, ui, host): self.ui = ui self.host = host def __call__(self, sock): host = self.host cacerts = self.ui.config('web', 'cacerts') hostfingerprint = self.ui.config('hostfingerprints', host) if not getattr(sock, 'getpeercert', False): # python 2.5 ? if hostfingerprint: raise util.Abort(_("host fingerprint for %s can't be " "verified (Python too old)") % host) if self.ui.configbool('ui', 'reportoldssl', True): self.ui.warn(_("warning: certificate for %s can't be verified " "(Python too old)\n") % host) return if not sock.cipher(): # work around http://bugs.python.org/issue13721 raise util.Abort(_('%s ssl connection error') % host) peercert = sock.getpeercert(True) if not peercert: raise util.Abort(_('%s certificate error: ' 'no certificate received') % host) peerfingerprint = util.sha1(peercert).hexdigest() nicefingerprint = ":".join([peerfingerprint[x:x + 2] for x in xrange(0, len(peerfingerprint), 2)]) if hostfingerprint: if peerfingerprint.lower() != \ hostfingerprint.replace(':', '').lower(): raise util.Abort(_('certificate for %s has unexpected ' 'fingerprint %s') % (host, nicefingerprint), hint=_('check hostfingerprint configuration')) self.ui.debug('%s certificate matched fingerprint %s\n' % (host, nicefingerprint)) elif cacerts: msg = _verifycert(sock.getpeercert(), host) if msg: raise util.Abort(_('%s certificate error: %s') % (host, msg), hint=_('configure hostfingerprint %s or use ' '--insecure to connect insecurely') % nicefingerprint) self.ui.debug('%s certificate successfully verified\n' % host) else: self.ui.warn(_('warning: %s certificate with fingerprint %s not ' 'verified (check hostfingerprints or web.cacerts ' 'config setting)\n') % (host, nicefingerprint))