Mercurial > hg
view tests/test-url.py @ 36367:043e77f3be09
sshpeer: return framed file object when needed
Currently, wireproto.wirepeer has a default implementation of
_submitbatch() and sshv1peer has a very similar implementation.
The main difference is that sshv1peer is aware of the total amount
of bytes it can read whereas the default implementation reads the
stream until no more data is returned. The default implementation
works for HTTP, since there is a known end to HTTP responses (either
Content-Length or 0 sized chunk).
This commit teaches sshv1peer to use our just-introduced "cappedreader"
class for wrapping a file object to limit the number of bytes that
can be read. We do this by introducing an argument to specify whether
the response is framed. If set, we returned a cappedreader instance
instead of the raw pipe.
_call() always has framed responses. So we set this argument
unconditionally and then .read() the entirety of the result.
Strictly speaking, we don't need to use cappedreader in this case
and can inline frame decoding/read logic. But I like when things
are consistent. The overhead should be negligible.
_callstream() and _callcompressable() are special: whether framing
is used depends on the specific command. So, we define a set
of commands that have framed response. It currently only
contains "batch."
As a result of this change, the one-off implementation of
_submitbatch() in sshv1peer can be removed since it is now
safe to .read() the response's file object until end of stream.
cappedreader takes care of not overrunning the frame.
Differential Revision: https://phab.mercurial-scm.org/D2380
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Wed, 21 Feb 2018 08:35:48 -0800 |
parents | 26a5d605b868 |
children | 0dcd03637d36 |
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# coding=utf-8 from __future__ import absolute_import, print_function import doctest import os def check(a, b): if a != b: print((a, b)) def cert(cn): return {'subject': ((('commonName', cn),),)} from mercurial import ( sslutil, ) _verifycert = sslutil._verifycert # Test non-wildcard certificates check(_verifycert(cert('example.com'), 'example.com'), None) check(_verifycert(cert('example.com'), 'www.example.com'), 'certificate is for example.com') check(_verifycert(cert('www.example.com'), 'example.com'), 'certificate is for www.example.com') # Test wildcard certificates check(_verifycert(cert('*.example.com'), 'www.example.com'), None) check(_verifycert(cert('*.example.com'), 'example.com'), 'certificate is for *.example.com') check(_verifycert(cert('*.example.com'), 'w.w.example.com'), 'certificate is for *.example.com') # Test subjectAltName san_cert = {'subject': ((('commonName', 'example.com'),),), 'subjectAltName': (('DNS', '*.example.net'), ('DNS', 'example.net'))} check(_verifycert(san_cert, 'example.net'), None) check(_verifycert(san_cert, 'foo.example.net'), None) # no fallback to subject commonName when subjectAltName has DNS check(_verifycert(san_cert, 'example.com'), 'certificate is for *.example.net, example.net') # fallback to subject commonName when no DNS in subjectAltName san_cert = {'subject': ((('commonName', 'example.com'),),), 'subjectAltName': (('IP Address', '8.8.8.8'),)} check(_verifycert(san_cert, 'example.com'), None) # Avoid some pitfalls check(_verifycert(cert('*.foo'), 'foo'), 'certificate is for *.foo') check(_verifycert(cert('*o'), 'foo'), None) check(_verifycert({'subject': ()}, 'example.com'), 'no commonName or subjectAltName found in certificate') check(_verifycert(None, 'example.com'), 'no certificate received') # Unicode (IDN) certname isn't supported check(_verifycert(cert(u'\u4f8b.jp'), 'example.jp'), 'IDN in certificate not supported') # The following tests are from CPython's test_ssl.py. check(_verifycert(cert('example.com'), 'example.com'), None) check(_verifycert(cert('example.com'), 'ExAmple.cOm'), None) check(_verifycert(cert('example.com'), 'www.example.com'), 'certificate is for example.com') check(_verifycert(cert('example.com'), '.example.com'), 'certificate is for example.com') check(_verifycert(cert('example.com'), 'example.org'), 'certificate is for example.com') check(_verifycert(cert('example.com'), 'exampleXcom'), 'certificate is for example.com') check(_verifycert(cert('*.a.com'), 'foo.a.com'), None) check(_verifycert(cert('*.a.com'), 'bar.foo.a.com'), 'certificate is for *.a.com') check(_verifycert(cert('*.a.com'), 'a.com'), 'certificate is for *.a.com') check(_verifycert(cert('*.a.com'), 'Xa.com'), 'certificate is for *.a.com') check(_verifycert(cert('*.a.com'), '.a.com'), 'certificate is for *.a.com') # only match one left-most wildcard check(_verifycert(cert('f*.com'), 'foo.com'), None) check(_verifycert(cert('f*.com'), 'f.com'), None) check(_verifycert(cert('f*.com'), 'bar.com'), 'certificate is for f*.com') check(_verifycert(cert('f*.com'), 'foo.a.com'), 'certificate is for f*.com') check(_verifycert(cert('f*.com'), 'bar.foo.com'), 'certificate is for f*.com') # NULL bytes are bad, CVE-2013-4073 check(_verifycert(cert('null.python.org\x00example.org'), 'null.python.org\x00example.org'), None) check(_verifycert(cert('null.python.org\x00example.org'), 'example.org'), 'certificate is for null.python.org\x00example.org') check(_verifycert(cert('null.python.org\x00example.org'), 'null.python.org'), 'certificate is for null.python.org\x00example.org') # error cases with wildcards check(_verifycert(cert('*.*.a.com'), 'bar.foo.a.com'), 'certificate is for *.*.a.com') check(_verifycert(cert('*.*.a.com'), 'a.com'), 'certificate is for *.*.a.com') check(_verifycert(cert('*.*.a.com'), 'Xa.com'), 'certificate is for *.*.a.com') check(_verifycert(cert('*.*.a.com'), '.a.com'), 'certificate is for *.*.a.com') check(_verifycert(cert('a.*.com'), 'a.foo.com'), 'certificate is for a.*.com') check(_verifycert(cert('a.*.com'), 'a..com'), 'certificate is for a.*.com') check(_verifycert(cert('a.*.com'), 'a.com'), 'certificate is for a.*.com') # wildcard doesn't match IDNA prefix 'xn--' idna = u'püthon.python.org'.encode('idna').decode('ascii') check(_verifycert(cert(idna), idna), None) check(_verifycert(cert('x*.python.org'), idna), 'certificate is for x*.python.org') check(_verifycert(cert('xn--p*.python.org'), idna), 'certificate is for xn--p*.python.org') # wildcard in first fragment and IDNA A-labels in sequent fragments # are supported. idna = u'www*.pythön.org'.encode('idna').decode('ascii') check(_verifycert(cert(idna), u'www.pythön.org'.encode('idna').decode('ascii')), None) check(_verifycert(cert(idna), u'www1.pythön.org'.encode('idna').decode('ascii')), None) check(_verifycert(cert(idna), u'ftp.pythön.org'.encode('idna').decode('ascii')), 'certificate is for www*.xn--pythn-mua.org') check(_verifycert(cert(idna), u'pythön.org'.encode('idna').decode('ascii')), 'certificate is for www*.xn--pythn-mua.org') c = { 'notAfter': 'Jun 26 21:41:46 2011 GMT', 'subject': (((u'commonName', u'linuxfrz.org'),),), 'subjectAltName': ( ('DNS', 'linuxfr.org'), ('DNS', 'linuxfr.com'), ('othername', '<unsupported>'), ) } check(_verifycert(c, 'linuxfr.org'), None) check(_verifycert(c, 'linuxfr.com'), None) # Not a "DNS" entry check(_verifycert(c, '<unsupported>'), 'certificate is for linuxfr.org, linuxfr.com') # When there is a subjectAltName, commonName isn't used check(_verifycert(c, 'linuxfrz.org'), 'certificate is for linuxfr.org, linuxfr.com') # A pristine real-world example c = { 'notAfter': 'Dec 18 23:59:59 2011 GMT', 'subject': ( ((u'countryName', u'US'),), ((u'stateOrProvinceName', u'California'),), ((u'localityName', u'Mountain View'),), ((u'organizationName', u'Google Inc'),), ((u'commonName', u'mail.google.com'),), ), } check(_verifycert(c, 'mail.google.com'), None) check(_verifycert(c, 'gmail.com'), 'certificate is for mail.google.com') # Only commonName is considered check(_verifycert(c, 'California'), 'certificate is for mail.google.com') # Neither commonName nor subjectAltName c = { 'notAfter': 'Dec 18 23:59:59 2011 GMT', 'subject': ( ((u'countryName', u'US'),), ((u'stateOrProvinceName', u'California'),), ((u'localityName', u'Mountain View'),), ((u'organizationName', u'Google Inc'),), ), } check(_verifycert(c, 'mail.google.com'), 'no commonName or subjectAltName found in certificate') # No DNS entry in subjectAltName but a commonName c = { 'notAfter': 'Dec 18 23:59:59 2099 GMT', 'subject': ( ((u'countryName', u'US'),), ((u'stateOrProvinceName', u'California'),), ((u'localityName', u'Mountain View'),), ((u'commonName', u'mail.google.com'),), ), 'subjectAltName': (('othername', 'blabla'),), } check(_verifycert(c, 'mail.google.com'), None) # No DNS entry subjectAltName and no commonName c = { 'notAfter': 'Dec 18 23:59:59 2099 GMT', 'subject': ( ((u'countryName', u'US'),), ((u'stateOrProvinceName', u'California'),), ((u'localityName', u'Mountain View'),), ((u'organizationName', u'Google Inc'),), ), 'subjectAltName': (('othername', 'blabla'),), } check(_verifycert(c, 'google.com'), 'no commonName or subjectAltName found in certificate') # Empty cert / no cert check(_verifycert(None, 'example.com'), 'no certificate received') check(_verifycert({}, 'example.com'), 'no certificate received') # avoid denials of service by refusing more than one # wildcard per fragment. check(_verifycert({'subject': (((u'commonName', u'a*b.com'),),)}, 'axxb.com'), None) check(_verifycert({'subject': (((u'commonName', u'a*b.co*'),),)}, 'axxb.com'), 'certificate is for a*b.co*') check(_verifycert({'subject': (((u'commonName', u'a*b*.com'),),)}, 'axxbxxc.com'), 'too many wildcards in certificate DNS name: a*b*.com') def test_url(): """ >>> from mercurial.util import url This tests for edge cases in url.URL's parsing algorithm. Most of these aren't useful for documentation purposes, so they aren't part of the class's doc tests. Query strings and fragments: >>> url('http://host/a?b#c') <url scheme: 'http', host: 'host', path: 'a', query: 'b', fragment: 'c'> >>> url('http://host/a?') <url scheme: 'http', host: 'host', path: 'a'> >>> url('http://host/a#b#c') <url scheme: 'http', host: 'host', path: 'a', fragment: 'b#c'> >>> url('http://host/a#b?c') <url scheme: 'http', host: 'host', path: 'a', fragment: 'b?c'> >>> url('http://host/?a#b') <url scheme: 'http', host: 'host', path: '', query: 'a', fragment: 'b'> >>> url('http://host/?a#b', parsequery=False) <url scheme: 'http', host: 'host', path: '?a', fragment: 'b'> >>> url('http://host/?a#b', parsefragment=False) <url scheme: 'http', host: 'host', path: '', query: 'a#b'> >>> url('http://host/?a#b', parsequery=False, parsefragment=False) <url scheme: 'http', host: 'host', path: '?a#b'> IPv6 addresses: >>> url('ldap://[2001:db8::7]/c=GB?objectClass?one') <url scheme: 'ldap', host: '[2001:db8::7]', path: 'c=GB', query: 'objectClass?one'> >>> url('ldap://joe:xxx@[2001:db8::7]:80/c=GB?objectClass?one') <url scheme: 'ldap', user: 'joe', passwd: 'xxx', host: '[2001:db8::7]', port: '80', path: 'c=GB', query: 'objectClass?one'> Missing scheme, host, etc.: >>> url('://192.0.2.16:80/') <url path: '://192.0.2.16:80/'> >>> url('https://mercurial-scm.org') <url scheme: 'https', host: 'mercurial-scm.org'> >>> url('/foo') <url path: '/foo'> >>> url('bundle:/foo') <url scheme: 'bundle', path: '/foo'> >>> url('a?b#c') <url path: 'a?b', fragment: 'c'> >>> url('http://x.com?arg=/foo') <url scheme: 'http', host: 'x.com', query: 'arg=/foo'> >>> url('http://joe:xxx@/foo') <url scheme: 'http', user: 'joe', passwd: 'xxx', path: 'foo'> Just a scheme and a path: >>> url('mailto:John.Doe@example.com') <url scheme: 'mailto', path: 'John.Doe@example.com'> >>> url('a:b:c:d') <url path: 'a:b:c:d'> >>> url('aa:bb:cc:dd') <url scheme: 'aa', path: 'bb:cc:dd'> SSH examples: >>> url('ssh://joe@host//home/joe') <url scheme: 'ssh', user: 'joe', host: 'host', path: '/home/joe'> >>> url('ssh://joe:xxx@host/src') <url scheme: 'ssh', user: 'joe', passwd: 'xxx', host: 'host', path: 'src'> >>> url('ssh://joe:xxx@host') <url scheme: 'ssh', user: 'joe', passwd: 'xxx', host: 'host'> >>> url('ssh://joe@host') <url scheme: 'ssh', user: 'joe', host: 'host'> >>> url('ssh://host') <url scheme: 'ssh', host: 'host'> >>> url('ssh://') <url scheme: 'ssh'> >>> url('ssh:') <url scheme: 'ssh'> Non-numeric port: >>> url('http://example.com:dd') <url scheme: 'http', host: 'example.com', port: 'dd'> >>> url('ssh://joe:xxx@host:ssh/foo') <url scheme: 'ssh', user: 'joe', passwd: 'xxx', host: 'host', port: 'ssh', path: 'foo'> Bad authentication credentials: >>> url('http://joe@joeville:123@4:@host/a?b#c') <url scheme: 'http', user: 'joe@joeville', passwd: '123@4:', host: 'host', path: 'a', query: 'b', fragment: 'c'> >>> url('http://!*#?/@!*#?/:@host/a?b#c') <url scheme: 'http', host: '!*', fragment: '?/@!*#?/:@host/a?b#c'> >>> url('http://!*#?@!*#?:@host/a?b#c') <url scheme: 'http', host: '!*', fragment: '?@!*#?:@host/a?b#c'> >>> url('http://!*@:!*@@host/a?b#c') <url scheme: 'http', user: '!*@', passwd: '!*@', host: 'host', path: 'a', query: 'b', fragment: 'c'> File paths: >>> url('a/b/c/d.g.f') <url path: 'a/b/c/d.g.f'> >>> url('/x///z/y/') <url path: '/x///z/y/'> >>> url('/foo:bar') <url path: '/foo:bar'> >>> url('\\\\foo:bar') <url path: '\\\\foo:bar'> >>> url('./foo:bar') <url path: './foo:bar'> Non-localhost file URL: >>> u = url('file://mercurial-scm.org/foo') Traceback (most recent call last): File "<stdin>", line 1, in ? Abort: file:// URLs can only refer to localhost Empty URL: >>> u = url('') >>> u <url path: ''> >>> str(u) '' Empty path with query string: >>> str(url('http://foo/?bar')) 'http://foo/?bar' Invalid path: >>> u = url('http://foo/bar') >>> u.path = 'bar' >>> str(u) 'http://foo/bar' >>> u = url('file:/foo/bar/baz') >>> u <url scheme: 'file', path: '/foo/bar/baz'> >>> str(u) 'file:///foo/bar/baz' >>> u.localpath() '/foo/bar/baz' >>> u = url('file:///foo/bar/baz') >>> u <url scheme: 'file', path: '/foo/bar/baz'> >>> str(u) 'file:///foo/bar/baz' >>> u.localpath() '/foo/bar/baz' >>> u = url('file:///f:oo/bar/baz') >>> u <url scheme: 'file', path: 'f:oo/bar/baz'> >>> str(u) 'file:///f:oo/bar/baz' >>> u.localpath() 'f:oo/bar/baz' >>> u = url('file://localhost/f:oo/bar/baz') >>> u <url scheme: 'file', host: 'localhost', path: 'f:oo/bar/baz'> >>> str(u) 'file://localhost/f:oo/bar/baz' >>> u.localpath() 'f:oo/bar/baz' >>> u = url('file:foo/bar/baz') >>> u <url scheme: 'file', path: 'foo/bar/baz'> >>> str(u) 'file:foo/bar/baz' >>> u.localpath() 'foo/bar/baz' """ if 'TERM' in os.environ: del os.environ['TERM'] doctest.testmod(optionflags=doctest.NORMALIZE_WHITESPACE)