Mercurial > hg
view hgext/factotum.py @ 31963:1bfb9a63b98e
stdio: raise StdioError if something goes wrong in ui.flush
The prior code used to ignore all errors, which was intended to
deal with a decade-old problem with writing to broken pipes on
Windows.
However, that code inadvertantly went a lot further, making it
impossible to detect *all* I/O errors on stdio ... but only sometimes.
What actually happened was that if Mercurial wrote less than a stdio
buffer's worth of output (the overwhelmingly common case for most
commands), any error that occurred would get swallowed here. But
if the buffering strategy changed, an unhandled IOError could be
raised from any number of other locations.
Because we now have a top-level StdioError handler, and ui._write
and ui._write_err (and now flush!) will raise that exception, we
have one rational place to detect and handle these errors.
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Tue, 11 Apr 2017 14:54:12 -0700 |
parents | 2c019aac6b99 |
children | 21b568820a3c |
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# factotum.py - Plan 9 factotum integration for Mercurial # # Copyright (C) 2012 Steven Stallion <sstallion@gmail.com> # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 2 of the License, or (at your # option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General # Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. '''http authentication with factotum This extension allows the factotum(4) facility on Plan 9 from Bell Labs platforms to provide authentication information for HTTP access. Configuration entries specified in the auth section as well as authentication information provided in the repository URL are fully supported. If no prefix is specified, a value of "*" will be assumed. By default, keys are specified as:: proto=pass service=hg prefix=<prefix> user=<username> !password=<password> If the factotum extension is unable to read the required key, one will be requested interactively. A configuration section is available to customize runtime behavior. By default, these entries are:: [factotum] executable = /bin/auth/factotum mountpoint = /mnt/factotum service = hg The executable entry defines the full path to the factotum binary. The mountpoint entry defines the path to the factotum file service. Lastly, the service entry controls the service name used when reading keys. ''' from __future__ import absolute_import import os from mercurial.i18n import _ from mercurial import ( error, httpconnection, url, util, ) urlreq = util.urlreq passwordmgr = url.passwordmgr ERRMAX = 128 _executable = _mountpoint = _service = None def auth_getkey(self, params): if not self.ui.interactive(): raise error.Abort(_('factotum not interactive')) if 'user=' not in params: params = '%s user?' % params params = '%s !password?' % params os.system("%s -g '%s'" % (_executable, params)) def auth_getuserpasswd(self, getkey, params): params = 'proto=pass %s' % params while True: fd = os.open('%s/rpc' % _mountpoint, os.O_RDWR) try: os.write(fd, 'start %s' % params) l = os.read(fd, ERRMAX).split() if l[0] == 'ok': os.write(fd, 'read') status, user, passwd = os.read(fd, ERRMAX).split(None, 2) if status == 'ok': if passwd.startswith("'"): if passwd.endswith("'"): passwd = passwd[1:-1].replace("''", "'") else: raise error.Abort(_('malformed password string')) return (user, passwd) except (OSError, IOError): raise error.Abort(_('factotum not responding')) finally: os.close(fd) getkey(self, params) def monkeypatch_method(cls): def decorator(func): setattr(cls, func.__name__, func) return func return decorator @monkeypatch_method(passwordmgr) def find_user_password(self, realm, authuri): user, passwd = self.passwddb.find_user_password(realm, authuri) if user and passwd: self._writedebug(user, passwd) return (user, passwd) prefix = '' res = httpconnection.readauthforuri(self.ui, authuri, user) if res: _, auth = res prefix = auth.get('prefix') user, passwd = auth.get('username'), auth.get('password') if not user or not passwd: if not prefix: prefix = realm.split(' ')[0].lower() params = 'service=%s prefix=%s' % (_service, prefix) if user: params = '%s user=%s' % (params, user) user, passwd = auth_getuserpasswd(self, auth_getkey, params) self.add_password(realm, authuri, user, passwd) self._writedebug(user, passwd) return (user, passwd) def uisetup(ui): global _executable _executable = ui.config('factotum', 'executable', '/bin/auth/factotum') global _mountpoint _mountpoint = ui.config('factotum', 'mountpoint', '/mnt/factotum') global _service _service = ui.config('factotum', 'service', 'hg')