Mercurial > hg > easyhg
view easyhg.py @ 448:89b6ba707096
Don't try to chmod on Windows; doesn't work
author | Chris Cannam |
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date | Wed, 29 Jun 2011 12:59:33 +0100 |
parents | f72cad3baa34 |
children | f778dfb6a42f |
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# -*- coding: utf-8 -*- # # EasyMercurial # # Based on hgExplorer by Jari Korhonen # Copyright (c) 2010 Jari Korhonen # Copyright (c) 2010 Chris Cannam # Copyright (c) 2010 Queen Mary, University of London # # 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. See the file # COPYING included with this distribution for more information. import sys, os, stat, urllib, urllib2, urlparse, platform from mercurial.i18n import _ from mercurial import ui, util, error try: from mercurial.url import passwordmgr except: from mercurial.httprepo import passwordmgr # The value assigned here may be modified during installation, by # replacing its default value with another one. We can't compare # against its default value, because then the comparison text would # get modified as well. So, compare using prefix only. # easyhg_import_path = 'NO_EASYHG_IMPORT_PATH' if not easyhg_import_path.startswith('NO_'): # We have an installation path: append it twice, once with # the Python version suffixed version_suffix = 'Py%d.%d' % (sys.version_info[0], sys.version_info[1]) sys.path.append(easyhg_import_path + "/" + version_suffix) sys.path.append(easyhg_import_path) # Try to load the PyQt4 module that we need. If this fails, we should # bail out later (in uisetup), because if we bail out now, Mercurial # will just continue without us and report success. The invoking # application needs to be able to discover whether the module load # succeeded or not, so we need to ensure that Mercurial itself returns # failure if it didn't. # easyhg_pyqt_ok = True try: from PyQt4 import Qt, QtGui except ImportError: easyhg_pyqt_ok = False easyhg_qtapp = None # These imports are optional, we just can't use the authfile (i.e. # "remember this password") feature without them # easyhg_authfile_imports_ok = True try: from Crypto.Cipher import AES import ConfigParser # Mercurial version won't write files import base64 except ImportError: print "EasyHg: Failed to import required modules for authfile support" easyhg_authfile_imports_ok = False def encrypt_salted(text, key): salt = os.urandom(8) text = '%d.%s.%s' % (len(text), base64.b64encode(salt), text) text += (16 - len(text) % 16) * ' ' cipher = AES.new(key, AES.MODE_CBC) return base64.b64encode(cipher.encrypt(text)) def decrypt_salted(ctext, key): cipher = AES.new(key, AES.MODE_CBC) text = cipher.decrypt(base64.b64decode(ctext)) (tlen, d, text) = text.partition('.') (salt, d, text) = text.partition('.') return text[0:int(tlen)] # from mercurial_keyring by Marcin Kasperski def canonical_url(authuri): parsed_url = urlparse.urlparse(authuri) return "%s://%s%s" % (parsed_url.scheme, parsed_url.netloc, parsed_url.path) def load_config(pcfg, pfile): fp = None try: fp = open(pfile) except: return pcfg.readfp(fp) fp.close() def save_config(ui, pcfg, pfile): ofp = None try: ofp = open(pfile, 'w') except: ui.write("failed to open authfile %s for writing\n" % pfile) raise if platform.system() != 'Windows': try: os.fchmod(ofp.fileno(), stat.S_IRUSR | stat.S_IWUSR) except: ofp.close() ui.write("failed to set permissions on authfile %s\n" % pfile) raise pcfg.write(ofp) ofp.close() def get_from_config(pcfg, sect, key): data = None try: data = pcfg.get(sect, key) except (ConfigParser.NoOptionError, ConfigParser.NoSectionError): pass return data def get_boolean_from_config(pcfg, sect, key, deflt): data = deflt try: data = pcfg.getboolean(sect, key) except (ConfigParser.NoOptionError, ConfigParser.NoSectionError): pass return data def set_to_config(pcfg, sect, key, data): if not pcfg.has_section(sect): pcfg.add_section(sect) pcfg.set(sect, key, data) def remote_key(uri, user): # generate a "safe-for-config-file" key representing uri+user # tuple (n.b. trailing = on base64 is not safe) return base64.b64encode('%s@@%s' % (uri, user)).replace('=', '_') def uisetup(ui): if not easyhg_pyqt_ok: raise util.Abort(_('Failed to load PyQt4 module required by easyhg.py')) global easyhg_qtapp easyhg_qtapp = QtGui.QApplication([]) def monkeypatch_method(cls): def decorator(func): setattr(cls, func.__name__, func) return func return decorator orig_find = passwordmgr.find_user_password @monkeypatch_method(passwordmgr) def find_user_password(self, realm, authuri): if not self.ui.interactive(): return orig_find(self, realm, authuri) if not easyhg_pyqt_ok: return orig_find(self, realm, authuri) authinfo = urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password( self, realm, authuri) user, passwd = authinfo if user and passwd: return orig_find(self, realm, authuri) # self.ui.write("want username and/or password for %s\n" % authuri) short_uri = canonical_url(authuri) authkey = self.ui.config('easyhg', 'authkey') authfile = self.ui.config('easyhg', 'authfile') use_authfile = (easyhg_authfile_imports_ok and authkey and authfile) if authfile: authfile = os.path.expanduser(authfile) authdata = None dialog = QtGui.QDialog() layout = QtGui.QGridLayout() dialog.setLayout(layout) layout.addWidget(QtGui.QLabel(_('<h3>Login required</h3><p>Please provide your login details for the repository at<br><code>%s</code>:') % short_uri), 0, 0, 1, 2) user_field = QtGui.QLineEdit() if user: user_field.setText(user) layout.addWidget(QtGui.QLabel(_('User:')), 1, 0) layout.addWidget(user_field, 1, 1) passwd_field = QtGui.QLineEdit() passwd_field.setEchoMode(QtGui.QLineEdit.Password) if passwd: passwd_field.setText(passwd) layout.addWidget(QtGui.QLabel(_('Password:')), 2, 0) layout.addWidget(passwd_field, 2, 1) user_field.connect(user_field, Qt.SIGNAL("textChanged(QString)"), passwd_field, Qt.SLOT("clear()")) remember_field = None remember = False authconfig = None if use_authfile: authconfig = ConfigParser.RawConfigParser() load_config(authconfig, authfile) remember = get_boolean_from_config(authconfig, 'preferences', 'remember', False) authdata = get_from_config(authconfig, 'auth', remote_key(short_uri, user)) if authdata: cachedpwd = decrypt_salted(authdata, authkey) passwd_field.setText(cachedpwd) remember_field = QtGui.QCheckBox() remember_field.setChecked(remember) remember_field.setText(_('Remember passwords while EasyMercurial is running')) layout.addWidget(remember_field, 3, 1) bb = QtGui.QDialogButtonBox() ok = bb.addButton(bb.Ok) cancel = bb.addButton(bb.Cancel) cancel.setDefault(False) cancel.setAutoDefault(False) ok.setDefault(True) bb.connect(ok, Qt.SIGNAL("clicked()"), dialog, Qt.SLOT("accept()")) bb.connect(cancel, Qt.SIGNAL("clicked()"), dialog, Qt.SLOT("reject()")) layout.addWidget(bb, 4, 0, 1, 2) dialog.setWindowTitle(_('EasyMercurial: Login')) dialog.show() if not user: user_field.setFocus(True) elif not passwd: passwd_field.setFocus(True) dialog.raise_() ok = dialog.exec_() if not ok: raise util.Abort(_('password entry cancelled')) user = user_field.text() passwd = passwd_field.text() if use_authfile: remember = remember_field.isChecked() set_to_config(authconfig, 'preferences', 'remember', remember) if user: if passwd and remember: authdata = encrypt_salted(passwd, authkey) set_to_config(authconfig, 'auth', remote_key(short_uri, user), authdata) else: set_to_config(authconfig, 'auth', remote_key(short_uri, user), '') save_config(self.ui, authconfig, authfile) self.add_password(realm, authuri, user, passwd) return (user, passwd)