view tests/test-hgweb-auth.py @ 50195:11e6eee4b063

transaction: use the standard transaction mechanism to backup branch

Branch is a bit special :
- It currently does not collaborate with the transaction (or any scoping) for
  writing (this is bad)
- It can change without the lock being taken (it is protected by `wlock`)

So we rely on the same mechanism as for the backup of the other dirstate file:
- we only do a backup if we hold the wlock
- we force a backup though the transaction


Since "branch" write does not collaborate with the transaction, we cannot back
it up "at the last minute" as we do for the dirstate. We have to back it up
"upfront". Since we have a backup, the transaction is no longer doing its
"quick_abort" and get noisy. Which is quite annoying. To work around this, and
to avoid jumping in yet-another-rabbit-hole of "getting branch written
properly", I am doing horrible things to the transaction in the meantime.
We should be able to get this code go away during the next cycle.

In the meantime, I prefer to take this small stop so that we stop abusing the
"journal" and "undo" mechanism instead of the proper backup mechanism of the
transaction.


Also note that this change regress the warning message for the legacy fallback
introduced in 2008 when issue902 got fixed in dd5a501cb97f (Mercurial 1.0).

I feel like this is fine as issue 902 remains fixed, and this would only affect
people deploying a mix of 15 year old Mercurial and modern mercurial, and using
branch and rollback extensively.

from mercurial import demandimport

demandimport.enable()
from mercurial import (
    error,
    pycompat,
    ui as uimod,
    url,
    util,
)
from mercurial.utils import (
    stringutil,
    urlutil,
)

urlerr = util.urlerr
urlreq = util.urlreq


class myui(uimod.ui):
    def interactive(self):
        return False


origui = myui.load()


def writeauth(items):
    ui = origui.copy()
    for name, value in items.items():
        ui.setconfig(b'auth', name, value)
    return ui


def _stringifyauthinfo(ai):
    if ai is None:
        return ai
    realm, authuris, user, passwd = ai
    return (
        pycompat.strurl(realm),
        [pycompat.strurl(u) for u in authuris],
        pycompat.strurl(user),
        pycompat.strurl(passwd),
    )


def test(auth, urls=None):
    print('CFG:', pycompat.sysstr(stringutil.pprint(auth, bprefix=True)))
    prefixes = set()
    for k in auth:
        prefixes.add(k.split(b'.', 1)[0])
    for p in prefixes:
        for name in (b'.username', b'.password'):
            if (p + name) not in auth:
                auth[p + name] = p
    auth = {k: v for k, v in auth.items() if v is not None}

    ui = writeauth(auth)

    def _test(uri):
        print('URI:', pycompat.strurl(uri))
        try:
            pm = url.passwordmgr(ui, urlreq.httppasswordmgrwithdefaultrealm())
            u, authinfo = urlutil.url(uri).authinfo()
            if authinfo is not None:
                pm.add_password(*_stringifyauthinfo(authinfo))
            print(
                '    ',
                tuple(
                    pycompat.strurl(a)
                    for a in pm.find_user_password('test', pycompat.strurl(u))
                ),
            )
        except error.Abort:
            print('    ', 'abort')

    if not urls:
        urls = [
            b'http://example.org/foo',
            b'http://example.org/foo/bar',
            b'http://example.org/bar',
            b'https://example.org/foo',
            b'https://example.org/foo/bar',
            b'https://example.org/bar',
            b'https://[e-mail]/bar',
            b'https://[e-mail]/bar',
        ]
    for u in urls:
        _test(u)


print('\n*** Test in-uri schemes\n')
test({b'x.prefix': b'http://example.org'})
test({b'x.prefix': b'https://example.org'})
test({b'x.prefix': b'http://example.org', b'x.schemes': b'https'})
test({b'x.prefix': b'https://example.org', b'x.schemes': b'http'})

print('\n*** Test separately configured schemes\n')
test({b'x.prefix': b'example.org', b'x.schemes': b'http'})
test({b'x.prefix': b'example.org', b'x.schemes': b'https'})
test({b'x.prefix': b'example.org', b'x.schemes': b'http https'})

print('\n*** Test prefix matching\n')
test(
    {
        b'x.prefix': b'http://example.org/foo',
        b'y.prefix': b'http://example.org/bar',
    }
)
test(
    {
        b'x.prefix': b'http://example.org/foo',
        b'y.prefix': b'http://example.org/foo/bar',
    }
)
test({b'x.prefix': b'*', b'y.prefix': b'https://example.org/bar'})

print('\n*** Test user matching\n')
test(
    {
        b'x.prefix': b'http://example.org/foo',
        b'x.username': None,
        b'x.password': b'xpassword',
    },
    urls=[b'http://[e-mail]/foo'],
)
test(
    {
        b'x.prefix': b'http://example.org/foo',
        b'x.username': None,
        b'x.password': b'xpassword',
        b'y.prefix': b'http://example.org/foo',
        b'y.username': b'y',
        b'y.password': b'ypassword',
    },
    urls=[b'http://[e-mail]/foo'],
)
test(
    {
        b'x.prefix': b'http://example.org/foo/bar',
        b'x.username': None,
        b'x.password': b'xpassword',
        b'y.prefix': b'http://example.org/foo',
        b'y.username': b'y',
        b'y.password': b'ypassword',
    },
    urls=[b'http://[e-mail]/foo/bar'],
)

print('\n*** Test user matching with name in prefix\n')

# prefix, username and URL have the same user
test(
    {
        b'x.prefix': b'https://example.org/foo',
        b'x.username': None,
        b'x.password': b'xpassword',
        b'y.prefix': b'http://[e-mail]/foo',
        b'y.username': b'y',
        b'y.password': b'ypassword',
    },
    urls=[b'http://[e-mail]/foo'],
)
# Prefix has a different user from username and URL
test(
    {
        b'y.prefix': b'http://[e-mail]/foo',
        b'y.username': b'y',
        b'y.password': b'ypassword',
    },
    urls=[b'http://[e-mail]/foo'],
)
# Prefix has a different user from URL; no username
test(
    {b'y.prefix': b'http://[e-mail]/foo', b'y.password': b'ypassword'},
    urls=[b'http://[e-mail]/foo'],
)
# Prefix and URL have same user, but doesn't match username
test(
    {
        b'y.prefix': b'http://[e-mail]/foo',
        b'y.username': b'z',
        b'y.password': b'ypassword',
    },
    urls=[b'http://[e-mail]/foo'],
)
# Prefix and URL have the same user; no username
test(
    {b'y.prefix': b'http://[e-mail]/foo', b'y.password': b'ypassword'},
    urls=[b'http://[e-mail]/foo'],
)
# Prefix user, but no URL user or username
test(
    {b'y.prefix': b'http://[e-mail]/foo', b'y.password': b'ypassword'},
    urls=[b'http://example.org/foo'],
)


def testauthinfo(fullurl, authurl):
    print('URIs:', fullurl, authurl)
    pm = urlreq.httppasswordmgrwithdefaultrealm()
    ai = _stringifyauthinfo(
        urlutil.url(pycompat.bytesurl(fullurl)).authinfo()[1]
    )
    pm.add_password(*ai)
    print(pm.find_user_password('test', authurl))


print('\n*** Test urllib2 and urlutil.url\n')
testauthinfo('http://[e-mail]:8080/foo', 'http://example.com:8080/foo')