mirror of
https://github.com/openSUSE/osc.git
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3359646b02
- added a file attribute to the ConfigError() class - added new ConfigMissingApiurl() class
345 lines
12 KiB
Python
345 lines
12 KiB
Python
#!/usr/bin/python
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# Copyright (C) 2006 Peter Poeml / Novell Inc. All rights reserved.
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# This program is free software; it may be used, copied, modified
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# and distributed under the terms of the GNU General Public Licence,
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# either version 2, or (at your option) any later version.
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"""Read osc configuration and store it in a dictionary
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This module reads and parses ~/.oscrc. The resulting configuration is stored
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for later usage in a dictionary named 'config'.
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In the absence of .oscrc, it tries .netrc.
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If information is missing, it asks the user questions.
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After reading the config, urllib2 is initialized.
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The configuration dictionary could look like this:
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{'apisrv': 'https://api.opensuse.org/',
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'user': 'poeml',
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'auth_dict': {'api.opensuse.org': {'user': 'poeml', 'pass': 'secret'},
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'apitest.opensuse.org': {'user': 'poeml', 'pass': 'secret'},
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'foo.opensuse.org': {'user': 'foo', 'pass': 'foo'}},
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'build-cmd': '/usr/bin/build',
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'build-root': '/abuild/oscbuild-%(repo)s-%(arch)s',
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'packagecachedir': '/var/cache/osbuild',
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'su-wrapper': 'sudo',
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'urllist': ['http://download.opensuse.org/repositories/%(project)s/%(repository)s/%(arch)s/%(filename)s',
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'http://api.opensuse.org/rpm/%(project)s/%(repository)s/_repository/%(buildarch)s/%(name)s'],
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}
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"""
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import OscConfigParser
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from osc import oscerr
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# being global to this module, this dict can be accessed from outside
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# it will hold the parsed configuration
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config = { }
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DEFAULTS = { 'apisrv': 'https://api.opensuse.org/',
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'scheme': 'https',
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'user': 'your_username',
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'pass': 'your_password',
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'packagecachedir': '/var/tmp/osbuild-packagecache',
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'su-wrapper': 'su -c',
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'build-cmd': '/usr/bin/build',
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'build-root': '/var/tmp/build-root',
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# default list of download URLs, which will be tried in order
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'urllist': [
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# the normal repo server, redirecting to mirrors
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'http://download.opensuse.org/repositories/%(project)s/%(repository)s/%(arch)s/%(filename)s',
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# direct access to "full" tree
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'%(scheme)s://%(apisrv)s/build/%(project)s/%(repository)s/%(buildarch)s/_repository/%(name)s',
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],
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'debug': '0',
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'http_debug': '0',
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'traceback': '0',
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'post_mortem': '0',
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'cookiejar': '~/.osc_cookiejar',
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# disable project tracking by default
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'do_package_tracking': '0',
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# default for osc build
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'extra-pkgs': 'vim gdb strace',
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# default platform
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'build_platform': 'openSUSE_Factory',
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}
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boolean_opts = ['debug', 'do_package_tracking', 'http_debug', 'post_mortem', 'traceback']
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new_conf_template = """
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[general]
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# URL to access API server, e.g. %(apisrv)s
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# you also need a section [%(apisrv)s] with the credentials
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#apisrv = %(apisrv)s
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# Downloaded packages are cached here. Must be writable by you.
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#packagecachedir = %(packagecachedir)s
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# Wrapper to call build as root (sudo, su -, ...)
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#su-wrapper = %(su-wrapper)s
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# rootdir to setup the chroot environment
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# can contain %%(repo)s and/or %%(arch)s for replacement, e.g.
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# /srv/oscbuild/%%(repo)s-%%(arch)s
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#build-root = %(build-root)s
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# extra packages to install when building packages locally (osc build)
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# this corresponds to osc build's -x option and can be overridden with that
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# -x '' can also be given on the command line to override this setting, or
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# you can have an empty setting here.
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#extra-pkgs = vim gdb strace
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# build platform is used if the platform argument is omitted to osc build
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#build_platform = openSUSE_Factory
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# show info useful for debugging
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#debug = 1
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# show HTTP traffic useful for debugging
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#http_debug = 1
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# jump into the debugger in case of errors
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#post_mortem = 1
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# print call traces in case of errors
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#traceback = 1
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[%(apisrv)s]
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user = %(user)s
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pass = %(pass)s
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"""
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account_not_configured_text ="""
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Your user account / password are not configured yet.
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You will be asked for them below, and they will be stored in
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%s for future use.
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"""
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config_incomplete_text = """
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Your configuration file %s is not complete.
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Make sure that it has a [general] section.
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(You can copy&paste the below. Some commented defaults are shown.)
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"""
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config_missing_apiurl_text = """
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the apiurl \'%s\' does not exist in the config file. Please enter
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your credentials for this apiurl.
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"""
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cookiejar = None
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def parse_apisrv_url(scheme, apisrv):
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import urlparse
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if apisrv.startswith('http://') or apisrv.startswith('https://'):
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return urlparse.urlsplit(apisrv)[0:2]
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else:
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return scheme, apisrv
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def get_apiurl_usr(apiurl):
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"""
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returns the user for this host - if this host does not exist in the
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internal auth_dict the default user is returned.
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"""
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import sys
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scheme, apisrv = parse_apisrv_url(None, apiurl)
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if config['auth_dict'].has_key(apisrv):
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return config['auth_dict'][apisrv]['user']
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else:
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print >>sys.stderr, 'section [\'%s\'] does not exist - using default user: \'%s\'' \
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% (apisrv, config['user'])
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return config['user']
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def init_basicauth(config):
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"""initialize urllib2 with the credentials for Basic Authentication"""
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from osc.core import __version__
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import os, urllib2
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import cookielib
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global cookiejar
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# HTTPS proxy is not supported by urllib2. It only leads to an error
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# or, at best, a warning.
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# https://bugzilla.novell.com/show_bug.cgi?id=214983
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# https://bugzilla.novell.com/show_bug.cgi?id=298378
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if 'https_proxy' in os.environ:
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del os.environ['https_proxy']
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if 'HTTPS_PROXY' in os.environ:
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del os.environ['HTTPS_PROXY']
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if config['http_debug']:
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# brute force
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def urllib2_debug_init(self, debuglevel=0):
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self._debuglevel = 1
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urllib2.AbstractHTTPHandler.__init__ = urllib2_debug_init
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authhandler = urllib2.HTTPBasicAuthHandler( \
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urllib2.HTTPPasswordMgrWithDefaultRealm())
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cookie_file = os.path.expanduser(config['cookiejar'])
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cookiejar = cookielib.LWPCookieJar(cookie_file)
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try:
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cookiejar.load(ignore_discard=True)
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except IOError:
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try:
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open(cookie_file, 'w').close()
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os.chmod(cookie_file, 0600)
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except:
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#print 'Unable to create cookiejar file: \'%s\'. Using RAM-based cookies.' % cookie_file
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cookiejar = cookielib.CookieJar()
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opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookiejar), authhandler)
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urllib2.install_opener(opener)
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opener.addheaders = [('User-agent', 'osc/%s' % __version__)]
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# with None as first argument, it will always use this username/password
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# combination for urls for which arg2 (apisrv) is a super-url
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for host, auth in config['auth_dict'].iteritems():
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authhandler.add_password(None, host, auth['user'], auth['pass'])
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def get_configParser(conffile=None, force_read=False):
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"""
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Returns an ConfigParser() object. After its first invocation the
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ConfigParser object is stored in a method attribute and this attribute
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is returned unless you pass force_read=True.
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"""
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import os
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conffile = conffile or os.environ.get('OSC_CONFIG', '~/.oscrc')
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conffile = os.path.expanduser(conffile)
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if force_read or not get_configParser.__dict__.has_key('cp'):
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get_configParser.cp = OscConfigParser.OscConfigParser(DEFAULTS)
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get_configParser.cp.read(conffile)
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return get_configParser.cp
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def write_initial_config(conffile, entries, custom_template = ''):
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"""
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write osc's intial configuration file. entries is a dict which contains values
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for the config file (e.g. { 'user' : 'username', 'pass' : 'password' } ).
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custom_template is an optional configuration template.
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"""
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import os, StringIO, sys
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conf_template = custom_template or new_conf_template
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config = DEFAULTS.copy()
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config.update(entries)
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sio = StringIO.StringIO(conf_template.strip() % config)
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cp = OscConfigParser.OscConfigParser(DEFAULTS)
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cp.readfp(sio)
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file = None
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try:
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file = open(conffile, 'w')
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except IOError, e:
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raise oscerr.OscIOError(e, 'cannot open configfile \'%s\'' % conffile)
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try:
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try:
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os.chmod(conffile, 0600)
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cp.write(file)
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except IOError, e:
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raise oscerr.OscIOError(e, 'cannot write configfile \'s\'' % conffile)
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finally:
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if file: file.close()
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def get_config(override_conffile = None,
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override_apisrv = None,
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override_debug = None,
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override_http_debug = None,
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override_traceback = None,
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override_post_mortem = None):
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"""do the actual work (see module documentation)"""
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import os
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import sys
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import re
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global config
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conffile = override_conffile or os.environ.get('OSC_CONFIG', '~/.oscrc')
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conffile = os.path.expanduser(conffile)
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if not os.path.exists(conffile):
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raise oscerr.NoConfigfile(conffile, \
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account_not_configured_text % conffile)
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# okay, we made sure that .oscrc exists
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cp = get_configParser(conffile)
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if not cp.has_section('general'):
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# FIXME: it might be sufficient to just assume defaults?
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msg = config_incomplete_text % conffile
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msg += new_conf_template % DEFAULTS
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raise oscerr.ConfigError(msg, conffile)
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config = dict(cp.items('general', raw=1))
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config['scheme'], config['apisrv'] = \
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parse_apisrv_url(config['scheme'], config['apisrv'])
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for i in boolean_opts:
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try:
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config[i] = cp.getboolean('general', i)
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except ValueError, e:
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raise oscerr.ConfigError('cannot parse \'%s\' setting: ' % i + str(e), conffile)
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config['packagecachedir'] = os.path.expanduser(config['packagecachedir'])
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re_clist = re.compile('[, ]+')
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config['extra-pkgs'] = [ i.strip() for i in re_clist.split(config['extra-pkgs'].strip()) ]
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if config['extra-pkgs'] == []:
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config['extra-pkgs'] = None
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# transform 'url1, url2, url3' form into a list
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if type(config['urllist']) == str:
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config['urllist'] = [ i.strip() for i in re_clist.split(config['urllist'].strip()) ]
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# holds multiple usernames and passwords
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auth_dict = { }
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for url in [ x for x in cp.sections() if x != 'general' ]:
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dummy, host = \
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parse_apisrv_url(config['scheme'], url)
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auth_dict[host] = { 'user': cp.get(url, 'user'),
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'pass': cp.get(url, 'pass') }
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# add the auth data we collected to the config dict
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config['auth_dict'] = auth_dict
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# override values which we were called with
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if override_debug:
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config['debug'] = override_debug
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if override_http_debug:
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config['http_debug'] = override_http_debug
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if override_traceback:
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config['traceback'] = override_traceback
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if override_post_mortem:
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config['post_mortem'] = override_post_mortem
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if override_apisrv:
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config['scheme'], config['apisrv'] = \
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parse_apisrv_url(config['scheme'], override_apisrv)
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# to make the mess complete, set up the more convenient api url which we'll rather use
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config['apiurl'] = config['scheme'] + '://' + config['apisrv']
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# XXX unless config['user'] goes away (and is replaced with a handy function, or
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# config becomes an object, even better), set the global 'user' here as well,
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# provided that there _are_ credentials for the chosen apisrv:
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if config['apisrv'] in config['auth_dict'].keys():
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config['user'] = config['auth_dict'][config['apisrv']]['user']
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else:
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raise oscerr.ConfigMissingApiurl(config_missing_apiurl_text % config['apisrv'],
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conffile, config['apiurl'])
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# finally, initialize urllib2 for to use the credentials for Basic Authentication
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init_basicauth(config)
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