# Copyright (C) 2006-2009 Novell Inc. All rights reserved. # This program is free software; it may be used, copied, modified # and distributed under the terms of the GNU General Public Licence, # either version 2, or version 3 (at your option). from __future__ import print_function """Read osc configuration and store it in a dictionary This module reads and parses oscrc. The resulting configuration is stored for later usage in a dictionary named 'config'. The oscrc is kept mode 0600, so that it is not publically readable. This gives no real security for storing passwords. If in doubt, use your favourite keyring. Password is stored on ~/.config/osc/oscrc as bz2 compressed and base64 encoded, so that is fairly large and not to be recognized or remembered easily by an occasional spectator. If information is missing, it asks the user questions. After reading the config, urllib2 is initialized. The configuration dictionary could look like this: {'apisrv': 'https://api.opensuse.org/', 'user': 'joe', 'api_host_options': {'api.opensuse.org': {'user': 'joe', 'pass': 'secret'}, 'apitest.opensuse.org': {'user': 'joe', 'pass': 'secret', 'http_headers':(('Host','api.suse.de'), ('User','faye'))}, 'foo.opensuse.org': {'user': 'foo', 'pass': 'foo'}}, 'build-cmd': '/usr/bin/build', 'build-root': '/abuild/oscbuild-%(repo)s-%(arch)s', 'packagecachedir': '/var/cache/osbuild', 'su-wrapper': 'sudo', } """ import bz2 import base64 import os import re import sys import ssl import warnings import getpass try: from http.cookiejar import LWPCookieJar, CookieJar from http.client import HTTPConnection, HTTPResponse from io import StringIO from urllib.parse import urlsplit from urllib.error import URLError from urllib.request import HTTPBasicAuthHandler, HTTPCookieProcessor, HTTPPasswordMgrWithDefaultRealm, ProxyHandler from urllib.request import AbstractHTTPHandler, build_opener, proxy_bypass, HTTPSHandler except ImportError: #python 2.x from cookielib import LWPCookieJar, CookieJar from httplib import HTTPConnection, HTTPResponse from StringIO import StringIO from urlparse import urlsplit from urllib2 import URLError, HTTPBasicAuthHandler, HTTPCookieProcessor, HTTPPasswordMgrWithDefaultRealm, ProxyHandler, AbstractBasicAuthHandler from urllib2 import AbstractHTTPHandler, build_opener, proxy_bypass, HTTPSHandler from . import OscConfigParser from osc import oscerr from osc.util.helper import raw_input from .oscsslexcp import NoSecureSSLError from osc import credentials GENERIC_KEYRING = False GNOME_KEYRING = False try: import keyring GENERIC_KEYRING = True except: try: import gobject gobject.set_application_name('osc') import gnomekeyring GNOME_KEYRING = gnomekeyring.is_available() except: pass def _get_processors(): """ get number of processors (online) based on SC_NPROCESSORS_ONLN (returns 1 if config name does not exist). """ try: return os.sysconf('SC_NPROCESSORS_ONLN') except ValueError as e: return 1 DEFAULTS = {'apiurl': 'https://api.opensuse.org', 'user': None, 'pass': None, 'passx': None, 'packagecachedir': '/var/tmp/osbuild-packagecache', 'su-wrapper': 'sudo', # build type settings 'build-cmd': '/usr/bin/build', 'build-type': '', # may be empty for chroot, kvm or xen 'build-root': '/var/tmp/build-root/%(repo)s-%(arch)s', 'build-uid': '', # use the default provided by build 'build-device': '', # required for VM builds 'build-memory': '', # required for VM builds 'build-shell-after-fail': '0', # optional for VM builds 'build-swap': '', # optional for VM builds 'build-vmdisk-rootsize': '', # optional for VM builds 'build-vmdisk-swapsize': '', # optional for VM builds 'build-vmdisk-filesystem': '', # optional for VM builds 'build-vm-user': '', # optional for VM builds 'build-kernel': '', # optional for VM builds 'build-initrd': '', # optional for VM builds 'build-jobs': str(_get_processors()), 'builtin_signature_check': '1', # by default use builtin check for verify pkgs 'icecream': '0', 'ccache': '0', 'buildlog_strip_time': '0', # strips the build time from the build log 'debug': '0', 'http_debug': '0', 'http_full_debug': '0', 'http_retries': '3', 'verbose': '1', 'no_preinstallimage': '0', 'traceback': '0', 'post_mortem': '0', 'use_keyring': '0', 'gnome_keyring': '0', 'cookiejar': '~/.osc_cookiejar', # fallback for osc build option --no-verify 'no_verify': '0', # enable project tracking by default 'do_package_tracking': '1', # default for osc build 'extra-pkgs': '', # default repository 'build_repository': 'openSUSE_Factory', # default project for branch or bco 'getpac_default_project': 'openSUSE:Factory', # alternate filesystem layout: have multiple subdirs, where colons were. 'checkout_no_colon': '0', # change filesystem layout: avoid checkout from within a proj or package dir. 'checkout_rooted': '0', # local files to ignore with status, addremove, .... 'exclude_glob': '.osc CVS .svn .* _linkerror *~ #*# *.orig *.bak *.changes.vctmp.*', # whether to keep passwords in plaintext (deprecated (see creds manager)). 'plaintext_passwd': '0', # whether to print Web UI links to directly insert in browser (where possible) 'print_web_links': '0', # limit the age of requests shown with 'osc req list'. # this is a default only, can be overridden by 'osc req list -D NNN' # Use 0 for unlimted. 'request_list_days': 0, # check for unversioned/removed files before commit 'check_filelist': '1', # check for pending requests after executing an action (e.g. checkout, update, commit) 'check_for_request_on_action': '1', # what to do with the source package if the submitrequest has been accepted 'submitrequest_on_accept_action': '', 'request_show_interactive': '0', 'request_show_source_buildstatus': '0', # if a review is accepted in interactive mode and a group # was specified the review will be accepted for this group 'review_inherit_group': '0', 'submitrequest_accepted_template': '', 'submitrequest_declined_template': '', 'linkcontrol': '0', 'include_request_from_project': '1', 'local_service_run': '1', # Maintenance defaults to OBS instance defaults 'maintained_attribute': 'OBS:Maintained', 'maintenance_attribute': 'OBS:MaintenanceProject', 'maintained_update_project_attribute': 'OBS:UpdateProject', 'show_download_progress': '0', # path to the vc script 'vc-cmd': '/usr/lib/build/vc', # heuristic to speedup Package.status 'status_mtime_heuristic': '0' } # some distros like Debian rename and move build to obs-build if not os.path.isfile('/usr/bin/build') and os.path.isfile('/usr/bin/obs-build'): DEFAULTS['build-cmd'] = '/usr/bin/obs-build' if not os.path.isfile('/usr/lib/build/vc') and os.path.isfile('/usr/lib/obs-build/vc'): DEFAULTS['vc-cmd'] = '/usr/lib/obs-build/vc' # being global to this module, this dict can be accessed from outside # it will hold the parsed configuration config = DEFAULTS.copy() boolean_opts = ['debug', 'do_package_tracking', 'http_debug', 'post_mortem', 'traceback', 'check_filelist', 'plaintext_passwd', 'checkout_no_colon', 'checkout_rooted', 'check_for_request_on_action', 'linkcontrol', 'show_download_progress', 'request_show_interactive', 'request_show_source_buildstatus', 'review_inherit_group', 'use_keyring', 'gnome_keyring', 'no_verify', 'builtin_signature_check', 'http_full_debug', 'include_request_from_project', 'local_service_run', 'buildlog_strip_time', 'no_preinstallimage', 'status_mtime_heuristic', 'print_web_links', 'ccache', 'build-shell-after-fail'] integer_opts = ['build-jobs'] api_host_options = ['user', 'pass', 'passx', 'aliases', 'http_headers', 'realname', 'email', 'sslcertck', 'cafile', 'capath', 'trusted_prj'] new_conf_template = """ [general] # URL to access API server, e.g. %(apiurl)s # you also need a section [%(apiurl)s] with the credentials apiurl = %(apiurl)s # Downloaded packages are cached here. Must be writable by you. #packagecachedir = %(packagecachedir)s # Wrapper to call build as root (sudo, su -, ...) #su-wrapper = %(su-wrapper)s # set it empty to run build script as user (works only with KVM atm): #su-wrapper = # rootdir to setup the chroot environment # can contain %%(repo)s, %%(arch)s, %%(project)s, %%(package)s and %%(apihost)s (apihost is the hostname # extracted from currently used apiurl) for replacement, e.g. # /srv/oscbuild/%%(repo)s-%%(arch)s or # /srv/oscbuild/%%(repo)s-%%(arch)s-%%(project)s-%%(package)s #build-root = %(build-root)s # compile with N jobs (default: "getconf _NPROCESSORS_ONLN") #build-jobs = N # build-type to use - values can be (depending on the capabilities of the 'build' script) # empty - chroot build # kvm - kvm VM build (needs build-device, build-swap, build-memory) # xen - xen VM build (needs build-device, build-swap, build-memory) # experimental: # qemu - qemu VM build # lxc - lxc build #build-type = # Execute always a shell prompt on build failure inside of the build environment #build-shell-after-fail = 1 # build-device is the disk-image file to use as root for VM builds # e.g. /var/tmp/FILE.root #build-device = /var/tmp/FILE.root # build-swap is the disk-image to use as swap for VM builds # e.g. /var/tmp/FILE.swap #build-swap = /var/tmp/FILE.swap # build-kernel is the boot kernel used for VM builds #build-kernel = /boot/vmlinuz # build-initrd is the boot initrd used for VM builds #build-initrd = /boot/initrd # build-memory is the amount of memory used in the VM # value in MB - e.g. 512 #build-memory = 512 # build-vmdisk-rootsize is the size of the disk-image used as root in a VM build # values in MB - e.g. 4096 #build-vmdisk-rootsize = 4096 # build-vmdisk-swapsize is the size of the disk-image used as swap in a VM build # values in MB - e.g. 1024 #build-vmdisk-swapsize = 1024 # build-vmdisk-filesystem is the file system type of the disk-image used in a VM build # values are ext3(default) ext4 xfs reiserfs btrfs #build-vmdisk-filesystem = ext4 # Numeric uid:gid to assign to the "abuild" user in the build-root # or "caller" to use the current users uid:gid # This is convenient when sharing the buildroot with ordinary userids # on the host. # This should not be 0 # build-uid = # strip leading build time information from the build log # buildlog_strip_time = 1 # Enable ccache in build roots. # ccache = 1 # extra packages to install when building packages locally (osc build) # this corresponds to osc build's -x option and can be overridden with that # -x '' can also be given on the command line to override this setting, or # you can have an empty setting here. This global setting may leads to # dependency problems when the base distro is not providing the package. # => using server side definition via cli_debug_packages substitute rule is # recommended therefore. #extra-pkgs = # build platform is used if the platform argument is omitted to osc build #build_repository = %(build_repository)s # default project for getpac or bco #getpac_default_project = %(getpac_default_project)s # alternate filesystem layout: have multiple subdirs, where colons were. #checkout_no_colon = %(checkout_no_colon)s # change filesystem layout: avoid checkout within a project or package dir. #checkout_rooted = %(checkout_rooted)s # local files to ignore with status, addremove, .... #exclude_glob = %(exclude_glob)s # limit the age of requests shown with 'osc req list'. # this is a default only, can be overridden by 'osc req list -D NNN' # Use 0 for unlimted. #request_list_days = %(request_list_days)s # show info useful for debugging #debug = 1 # show HTTP traffic useful for debugging #http_debug = 1 # number of retries on HTTP transfer #http_retries = 3 # Skip signature verification of packages used for build. #no_verify = 1 # jump into the debugger in case of errors #post_mortem = 1 # print call traces in case of errors #traceback = 1 # check for unversioned/removed files before commit #check_filelist = 1 # check for pending requests after executing an action (e.g. checkout, update, commit) #check_for_request_on_action = 1 # what to do with the source package if the submitrequest has been accepted. If # nothing is specified the API default is used #submitrequest_on_accept_action = cleanup|update|noupdate # template for an accepted submitrequest #submitrequest_accepted_template = Hi %%(who)s,\\n # thanks for working on:\\t%%(tgt_project)s/%%(tgt_package)s. # SR %%(reqid)s has been accepted.\\n\\nYour maintainers # template for a declined submitrequest #submitrequest_declined_template = Hi %%(who)s,\\n # sorry your SR %%(reqid)s (request type: %%(type)s) for # %%(tgt_project)s/%%(tgt_package)s has been declined because... #review requests interactively (default: off) #request_show_review = 1 # if a review is accepted in interactive mode and a group # was specified the review will be accepted for this group (default: off) #review_inherit_group = 1 [%(apiurl)s] # set aliases for this apiurl # aliases = foo, bar # real name used in .changes, unless the one from osc meta prj will be used # realname = # email used in .changes, unless the one from osc meta prj will be used # email = # additional headers to pass to a request, e.g. for special authentication #http_headers = Host: foofoobar, # User: mumblegack # Plain text password #pass = """ account_not_configured_text = """ Your user account / password are not configured yet. You will be asked for them below, and they will be stored in %s for future use. """ config_incomplete_text = """ Your configuration file %s is not complete. Make sure that it has a [general] section. (You can copy&paste the below. Some commented defaults are shown.) """ config_missing_apiurl_text = """ the apiurl \'%s\' does not exist in the config file. Please enter your credentials for this apiurl. """ cookiejar = None def parse_apisrv_url(scheme, apisrv): if apisrv.startswith('http://') or apisrv.startswith('https://'): url = apisrv elif scheme != None: url = scheme + apisrv else: msg = 'invalid apiurl \'%s\' (specify the protocol (http:// or https://))' % apisrv raise URLError(msg) scheme, url, path = urlsplit(url)[0:3] return scheme, url, path.rstrip('/') def urljoin(scheme, apisrv, path=''): return '://'.join([scheme, apisrv]) + path def is_known_apiurl(url): """returns true if url is a known apiurl""" apiurl = urljoin(*parse_apisrv_url(None, url)) return apiurl in config['api_host_options'] def extract_known_apiurl(url): """ Return longest prefix of given url that is known apiurl, None if there is no known apiurl that is prefix of given url. """ scheme, host, path = parse_apisrv_url(None, url) p = path.split('/') while p: apiurl = urljoin(scheme, host, '/'.join(p)) if apiurl in config['api_host_options']: return apiurl p.pop() return None def get_apiurl_api_host_options(apiurl): """ Returns all apihost specific options for the given apiurl, None if no such specific optiosn exist. """ # FIXME: in A Better World (tm) there was a config object which # knows this instead of having to extract it from a url where it # had been mingled into before. But this works fine for now. apiurl = urljoin(*parse_apisrv_url(None, apiurl)) if is_known_apiurl(apiurl): return config['api_host_options'][apiurl] raise oscerr.ConfigMissingApiurl('missing credentials for apiurl: \'%s\'' % apiurl, '', apiurl) def get_apiurl_usr(apiurl): """ returns the user for this host - if this host does not exist in the internal api_host_options the default user is returned. """ # FIXME: maybe there should be defaults not just for the user but # for all apihost specific options. The ConfigParser class # actually even does this but for some reason we don't use it # (yet?). try: return get_apiurl_api_host_options(apiurl)['user'] except KeyError: print('no specific section found in config file for host of [\'%s\'] - using default user: \'%s\'' \ % (apiurl, config['user']), file=sys.stderr) return config['user'] # workaround m2crypto issue: # if multiple SSL.Context objects are created # m2crypto only uses the last object which was created. # So we need to build a new opener everytime we switch the # apiurl (because different apiurls may have different # cafile/capath locations) def _build_opener(apiurl): from osc.core import __version__ global config class OscHTTPBasicAuthHandler(HTTPBasicAuthHandler, object): # python2: inherit from object in order to make it a new-style class # (HTTPBasicAuthHandler is not a new-style class) def _rewind_request(self, req): if hasattr(req.data, 'seek'): # if the request is issued again (this time with an # Authorization header), the file's offset has to be # repositioned to the beginning of the file (otherwise, # a 0-length body is sent which most likely does not match # the Content-Length header (if present)) req.data.seek(0) def retry_http_basic_auth(self, host, req, realm): self._rewind_request(req) return super(self.__class__, self).retry_http_basic_auth(host, req, realm) if 'last_opener' not in _build_opener.__dict__: _build_opener.last_opener = (None, None) if apiurl == _build_opener.last_opener[0]: return _build_opener.last_opener[1] # respect no_proxy env variable if proxy_bypass(apiurl): # initialize with empty dict proxyhandler = ProxyHandler({}) else: # read proxies from env proxyhandler = ProxyHandler() authhandler_class = OscHTTPBasicAuthHandler # workaround for http://bugs.python.org/issue9639 if sys.version_info >= (2, 6, 6) and sys.version_info < (2, 7, 9): class OscHTTPBasicAuthHandlerCompat(OscHTTPBasicAuthHandler): # The following two functions were backported from upstream 2.7. def http_error_auth_reqed(self, authreq, host, req, headers): authreq = headers.get(authreq, None) if authreq: mo = AbstractBasicAuthHandler.rx.search(authreq) if mo: scheme, quote, realm = mo.groups() if quote not in ['"', "'"]: warnings.warn("Basic Auth Realm was unquoted", UserWarning, 2) if scheme.lower() == 'basic': return self.retry_http_basic_auth(host, req, realm) def retry_http_basic_auth(self, host, req, realm): self._rewind_request(req) user, pw = self.passwd.find_user_password(realm, host) if pw is not None: raw = "%s:%s" % (user, pw) auth = 'Basic %s' % base64.b64encode(raw).strip() if req.get_header(self.auth_header, None) == auth: return None req.add_unredirected_header(self.auth_header, auth) return self.parent.open(req, timeout=req.timeout) else: return None authhandler_class = OscHTTPBasicAuthHandlerCompat options = config['api_host_options'][apiurl] # with None as first argument, it will always use this username/password # combination for urls for which arg2 (apisrv) is a super-url authhandler = authhandler_class( \ HTTPPasswordMgrWithDefaultRealm()) authhandler.add_password(None, apiurl, options['user'], options['pass']) if options['sslcertck']: try: from . import oscssl from M2Crypto import m2urllib2 except ImportError as e: print(e) raise NoSecureSSLError('M2Crypto is needed to access %s in a secure way.\nPlease install python-m2crypto.' % apiurl) cafile = options.get('cafile', None) capath = options.get('capath', None) if not cafile and not capath: for i in ['/etc/pki/tls/cert.pem', '/etc/ssl/certs']: if os.path.isfile(i): cafile = i break elif os.path.isdir(i): capath = i break if not cafile and not capath: raise oscerr.OscIOError(None, 'No CA certificates found. (You may want to install ca-certificates-mozilla package)') ctx = oscssl.mySSLContext() if ctx.load_verify_locations(capath=capath, cafile=cafile) != 1: raise oscerr.OscIOError(None, 'No CA certificates found. (You may want to install ca-certificates-mozilla package)') opener = m2urllib2.build_opener(ctx, oscssl.myHTTPSHandler(ssl_context=ctx, appname='osc'), HTTPCookieProcessor(cookiejar), authhandler, proxyhandler) else: handlers = [HTTPCookieProcessor(cookiejar), authhandler, proxyhandler] try: # disable ssl cert check in python >= 2.7.9 ctx = ssl._create_unverified_context() handlers.append(HTTPSHandler(context=ctx)) except AttributeError: pass print("WARNING: SSL certificate checks disabled. Connection is insecure!\n", file=sys.stderr) opener = build_opener(*handlers) opener.addheaders = [('User-agent', 'osc/%s' % __version__)] _build_opener.last_opener = (apiurl, opener) return opener def init_basicauth(config, config_mtime): """initialize urllib2 with the credentials for Basic Authentication""" def filterhdrs(meth, ishdr, *hdrs): # this is so ugly but httplib doesn't use # a logger object or such def new_method(self, *args, **kwargs): # check if this is a recursive call (note: we do not # have to care about thread safety) is_rec_call = getattr(self, '_orig_stdout', None) is not None try: if not is_rec_call: self._orig_stdout = sys.stdout sys.stdout = StringIO() meth(self, *args, **kwargs) hdr = sys.stdout.getvalue() finally: # restore original stdout if not is_rec_call: sys.stdout = self._orig_stdout del self._orig_stdout for i in hdrs: if ishdr: hdr = re.sub(r'%s:[^\\r]*\\r\\n' % i, '', hdr) else: hdr = re.sub(i, '', hdr) sys.stdout.write(hdr) new_method.__name__ = meth.__name__ return new_method if config['http_debug'] and not config['http_full_debug']: HTTPConnection.send = filterhdrs(HTTPConnection.send, True, 'Cookie', 'Authorization') HTTPResponse.begin = filterhdrs(HTTPResponse.begin, False, 'header: Set-Cookie.*\n') if config['http_debug']: # brute force def urllib2_debug_init(self, debuglevel=0): self._debuglevel = 1 AbstractHTTPHandler.__init__ = urllib2_debug_init cookie_file = os.path.expanduser(config['cookiejar']) global cookiejar cookiejar = LWPCookieJar(cookie_file) try: cookiejar.load(ignore_discard=True) if int(round(config_mtime)) > int(os.stat(cookie_file).st_mtime): cookiejar.clear() cookiejar.save() except IOError: try: fd = os.open(cookie_file, os.O_CREAT | os.O_WRONLY | os.O_TRUNC, 0o600) os.close(fd) except IOError: # hmm is any good reason why we should catch the IOError? #print 'Unable to create cookiejar file: \'%s\'. Using RAM-based cookies.' % cookie_file cookiejar = CookieJar() def get_configParser(conffile=None, force_read=False): """ Returns an ConfigParser() object. After its first invocation the ConfigParser object is stored in a method attribute and this attribute is returned unless you pass force_read=True. """ if not conffile: conffile = identify_conf() conffile = os.path.expanduser(conffile) if 'conffile' not in get_configParser.__dict__: get_configParser.conffile = conffile if force_read or 'cp' not in get_configParser.__dict__ or conffile != get_configParser.conffile: get_configParser.cp = OscConfigParser.OscConfigParser(DEFAULTS) get_configParser.cp.read(conffile) get_configParser.conffile = conffile return get_configParser.cp def write_config(fname, cp): """write new configfile in a safe way""" if os.path.exists(fname) and not os.path.isfile(fname): # only write to a regular file return if not os.path.exists(os.path.dirname(fname)): os.makedirs(os.path.dirname(fname), mode=0o700) with open(fname + '.new', 'w') as f: cp.write(f, comments=True) try: os.rename(fname + '.new', fname) os.chmod(fname, 0o600) except: if os.path.exists(fname + '.new'): os.unlink(fname + '.new') raise def config_set_option(section, opt, val=None, delete=False, update=True, creds_mgr_descr=None, **kwargs): """ Sets a config option. If val is not specified the current/default value is returned. If val is specified, opt is set to val and the new value is returned. If an option was modified get_config is called with **kwargs unless update is set to False (override_conffile defaults to config['conffile']). If val is not specified and delete is True then the option is removed from the config/reset to the default value. """ cp = get_configParser(config['conffile']) # don't allow "internal" options general_opts = [i for i in DEFAULTS.keys() if not i in ['user', 'pass', 'passx']] if section != 'general': section = config['apiurl_aliases'].get(section, section) scheme, host, path = \ parse_apisrv_url(config.get('scheme', 'https'), section) section = urljoin(scheme, host, path) sections = {} for url in cp.sections(): if url == 'general': sections[url] = url else: scheme, host, path = \ parse_apisrv_url(config.get('scheme', 'https'), url) apiurl = urljoin(scheme, host, path) sections[apiurl] = url section = sections.get(section.rstrip('/'), section) if not section in cp.sections(): raise oscerr.ConfigError('unknown section \'%s\'' % section, config['conffile']) if section == 'general' and not opt in general_opts or \ section != 'general' and not opt in api_host_options: raise oscerr.ConfigError('unknown config option \'%s\'' % opt, config['conffile']) run = False if val: if opt == 'pass': creds_mgr = _get_credentials_manager(section, cp) user = _extract_user_compat(cp, section, creds_mgr) old_pw = creds_mgr.get_password(section, user, defer=False) try: creds_mgr.delete_password(section, user) if creds_mgr_descr: creds_mgr_new = creds_mgr_descr.create(cp) else: creds_mgr_new = creds_mgr creds_mgr_new.set_password(section, user, val) write_config(config['conffile'], cp) opt = credentials.AbstractCredentialsManager.config_entry old_pw = None finally: if old_pw is not None: creds_mgr.set_password(section, user, old_pw) # not nice, but needed if the Credentials Manager will change # something in cp write_config(config['conffile'], cp) else: cp.set(section, opt, val) write_config(config['conffile'], cp) run = True elif delete and (cp.has_option(section, opt) or opt == 'pass'): if opt == 'pass': creds_mgr = _get_credentials_manager(section, cp) user = _extract_user_compar(cp, section, creds_mgr) creds_mgr.delete_password(section, user) else: cp.remove_option(section, opt) write_config(config['conffile'], cp) run = True if run and update: kw = {'override_conffile': config['conffile'], 'override_no_keyring': config['use_keyring'], 'override_no_gnome_keyring': config['gnome_keyring']} kw.update(kwargs) get_config(**kw) if cp.has_option(section, opt): return (opt, cp.get(section, opt, raw=True)) return (opt, None) def _extract_user_compat(cp, section, creds_mgr): """ This extracts the user either from the ConfigParser or the creds_mgr. Only needed for deprecated Gnome Keyring """ user = cp.get(section, 'user') if user is None and hasattr(creds_mgr, 'get_user'): user = creds_mgr.get_user(section) return user def write_initial_config(conffile, entries, custom_template='', creds_mgr_descriptor=None): """ write osc's intial configuration file. entries is a dict which contains values for the config file (e.g. { 'user' : 'username', 'pass' : 'password' } ). custom_template is an optional configuration template. """ conf_template = custom_template or new_conf_template config = DEFAULTS.copy() config.update(entries) sio = StringIO(conf_template.strip() % config) cp = OscConfigParser.OscConfigParser(DEFAULTS) cp.readfp(sio) cp.set(config['apiurl'], 'user', config['user']) if creds_mgr_descriptor: creds_mgr = creds_mgr_descriptor.create(cp) else: creds_mgr = _get_credentials_manager(config['apiurl'], cp) creds_mgr.set_password(config['apiurl'], config['user'], config['pass']) write_config(conffile, cp) def add_section(filename, url, user, passwd, creds_mgr_descriptor=None): """ Add a section to config file for new api url. """ global config cp = get_configParser(filename) try: cp.add_section(url) except OscConfigParser.configparser.DuplicateSectionError: # Section might have existed, but was empty pass cp.set(url, 'user', user) if creds_mgr_descriptor: creds_mgr = creds_mgr_descriptor.create(cp) else: creds_mgr = _get_credentials_manager(url, cp) creds_mgr.set_password(url, user, passwd) write_config(filename, cp) def _get_credentials_manager(url, cp): if cp.has_option(url, credentials.AbstractCredentialsManager.config_entry): creds_mgr = credentials.create_credentials_manager(url, cp) if creds_mgr is None: msg = 'Unable to instantiate creds mgr (section: %s)' % url conffile = get_configParser.conffile raise oscerr.ConfigMissingCredentialsError(msg, conffile, url) return creds_mgr if config['use_keyring'] and GENERIC_KEYRING: return credentials.get_keyring_credentials_manager(cp) elif config['gnome_keyring'] and GNOME_KEYRING: protocol, host, path = parse_apisrv_url(None, url) return credentials.GnomeKeyringCredentialsManager(cp, None) elif cp.get(url, 'passx') is not None: return credentials.ObfuscatedConfigFileCredentialsManager(cp, None) return credentials.PlaintextConfigFileCredentialsManager(cp, None) class APIHostOptionsEntry(dict): def __getitem__(self, key, *args, **kwargs): value = super(self.__class__, self).__getitem__(key, *args, **kwargs) if key == 'pass' and callable(value): value = value() return value def get_config(override_conffile=None, override_apiurl=None, override_debug=None, override_http_debug=None, override_http_full_debug=None, override_traceback=None, override_post_mortem=None, override_no_keyring=None, override_no_gnome_keyring=None, override_verbose=None): """do the actual work (see module documentation)""" global config if not override_conffile: conffile = identify_conf() else: conffile = override_conffile conffile = os.path.expanduser(conffile) if not os.path.exists(conffile): raise oscerr.NoConfigfile(conffile, \ account_not_configured_text % conffile) # okay, we made sure that oscrc exists # make sure it is not world readable, it may contain a password. os.chmod(conffile, 0o600) cp = get_configParser(conffile) if not cp.has_section('general'): # FIXME: it might be sufficient to just assume defaults? msg = config_incomplete_text % conffile msg += new_conf_template % DEFAULTS raise oscerr.ConfigError(msg, conffile) config = dict(cp.items('general', raw=1)) config['conffile'] = conffile typed_opts = ((boolean_opts, cp.getboolean), (integer_opts, cp.getint)) for opts, meth in typed_opts: for opt in opts: try: config[opt] = meth('general', opt) except ValueError as e: msg = 'cannot parse \'%s\' setting: %s' % (opt, str(e)) raise oscerr.ConfigError(msg, conffile) config['packagecachedir'] = os.path.expanduser(config['packagecachedir']) config['exclude_glob'] = config['exclude_glob'].split() re_clist = re.compile('[, ]+') config['extra-pkgs'] = [i.strip() for i in re_clist.split(config['extra-pkgs'].strip()) if i] # collect the usernames, passwords and additional options for each api host api_host_options = {} # Regexp to split extra http headers into a dictionary # the text to be matched looks essentially looks this: # "Attribute1: value1, Attribute2: value2, ..." # there may be arbitray leading and intermitting whitespace. # the following regexp does _not_ support quoted commas within the value. http_header_regexp = re.compile(r"\s*(.*?)\s*:\s*(.*?)\s*(?:,\s*|\Z)") # override values which we were called with # This needs to be done before processing API sections as it might be already used there if override_no_keyring: config['use_keyring'] = False if override_no_gnome_keyring: config['gnome_keyring'] = False aliases = {} for url in [x for x in cp.sections() if x != 'general']: # backward compatiblity scheme, host, path = parse_apisrv_url(config.get('scheme', 'https'), url) apiurl = urljoin(scheme, host, path) creds_mgr = _get_credentials_manager(url, cp) # if the deprecated gnomekeyring is used we should use the apiurl instead of url # (that's what the old code did), but this makes things more complex # (also, it is very unlikely that url and apiurl differ) user = _extract_user_compat(cp, url, creds_mgr) if user is None: raise oscerr.ConfigMissingCredentialsError('No user found in section %s' % url, conffile, url) password = creds_mgr.get_password(url, user) if password is None: raise oscerr.ConfigMissingCredentialsError('No password found in section %s' % url, conffile, url) if cp.has_option(url, 'http_headers'): http_headers = cp.get(url, 'http_headers') http_headers = http_header_regexp.findall(http_headers) else: http_headers = [] if cp.has_option(url, 'aliases'): for i in cp.get(url, 'aliases').split(','): key = i.strip() if key == '': continue if key in aliases: msg = 'duplicate alias entry: \'%s\' is already used for another apiurl' % key raise oscerr.ConfigError(msg, conffile) aliases[key] = url entry = {'user': user, 'pass': password, 'http_headers': http_headers} api_host_options[apiurl] = APIHostOptionsEntry(entry) optional = ('realname', 'email', 'sslcertck', 'cafile', 'capath') for key in optional: if cp.has_option(url, key): if key == 'sslcertck': api_host_options[apiurl][key] = cp.getboolean(url, key) else: api_host_options[apiurl][key] = cp.get(url, key) if cp.has_option(url, 'build-root', proper=True): api_host_options[apiurl]['build-root'] = cp.get(url, 'build-root', raw=True) if not 'sslcertck' in api_host_options[apiurl]: api_host_options[apiurl]['sslcertck'] = True if scheme == 'http': api_host_options[apiurl]['sslcertck'] = False if cp.has_option(url, 'trusted_prj'): api_host_options[apiurl]['trusted_prj'] = cp.get(url, 'trusted_prj').split(' ') else: api_host_options[apiurl]['trusted_prj'] = [] # add the auth data we collected to the config dict config['api_host_options'] = api_host_options config['apiurl_aliases'] = aliases apiurl = aliases.get(config['apiurl'], config['apiurl']) config['apiurl'] = urljoin(*parse_apisrv_url(None, apiurl)) # backward compatibility if 'apisrv' in config: apisrv = config['apisrv'].lstrip('http://') apisrv = apisrv.lstrip('https://') scheme = config.get('scheme', 'https') config['apiurl'] = urljoin(scheme, apisrv) if 'apisrc' in config or 'scheme' in config: print('Warning: Use of the \'scheme\' or \'apisrv\' in oscrc is deprecated!\n' \ 'Warning: See README for migration details.', file=sys.stderr) if 'build_platform' in config: print('Warning: Use of \'build_platform\' config option is deprecated! (use \'build_repository\' instead)', file=sys.stderr) config['build_repository'] = config['build_platform'] if config['plaintext_passwd']: print('The \'plaintext_passwd\' option is deprecated and will be ignored', file=sys.stderr) config['verbose'] = int(config['verbose']) # override values which we were called with if override_verbose: config['verbose'] = override_verbose + 1 if override_debug: config['debug'] = override_debug if override_http_debug: config['http_debug'] = override_http_debug if override_http_full_debug: config['http_debug'] = override_http_full_debug or config['http_debug'] config['http_full_debug'] = override_http_full_debug if override_traceback: config['traceback'] = override_traceback if override_post_mortem: config['post_mortem'] = override_post_mortem if override_apiurl: apiurl = aliases.get(override_apiurl, override_apiurl) # check if apiurl is a valid url config['apiurl'] = urljoin(*parse_apisrv_url(None, apiurl)) # XXX unless config['user'] goes away (and is replaced with a handy function, or # config becomes an object, even better), set the global 'user' here as well, # provided that there _are_ credentials for the chosen apiurl: try: config['user'] = get_apiurl_usr(config['apiurl']) except oscerr.ConfigMissingApiurl as e: e.msg = config_missing_apiurl_text % config['apiurl'] e.file = conffile raise e # finally, initialize urllib2 for to use the credentials for Basic Authentication init_basicauth(config, os.stat(conffile).st_mtime) def identify_conf(): # needed for compat reasons(users may have their oscrc still in ~ if 'OSC_CONFIG' in os.environ: return os.environ.get('OSC_CONFIG') if os.path.exists(os.path.expanduser('~/.oscrc')): conffile = '~/.oscrc' else: conffile = os.environ.get('XDG_CONFIG_HOME', '~/.config') + '/osc/oscrc' return conffile def interactive_config_setup(conffile, apiurl, initial=True): user = raw_input('Username: ') passwd = getpass.getpass() creds_mgr_descr = select_credentials_manager_descr() if initial: config = {'user': user, 'pass': passwd} if apiurl: config['apiurl'] = apiurl write_initial_config(conffile, config, creds_mgr_descriptor=creds_mgr_descr) else: add_section(conffile, apiurl, user, passwd, creds_mgr_descriptor=creds_mgr_descr) def select_credentials_manager_descr(): if not credentials.has_keyring_support(): print('To use keyrings please install python%d-keyring.' % sys.version_info.major) creds_mgr_descriptors = credentials.get_credentials_manager_descriptors() for i, creds_mgr_descr in enumerate(creds_mgr_descriptors, 1): print('%d) %s (%s)' % (i, creds_mgr_descr.name(), creds_mgr_descr.description()))# i = raw_input('Select credentials manager: ') if not i.isdigit(): sys.exit('Invalid selection') i = int(i) - 1 if i < 0 or i >= len(creds_mgr_descriptors): sys.exit('Invalid selection') return creds_mgr_descriptors[i] # vim: sw=4 et