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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ# Copyright (C) 2012 Canonical Ltd. # Copyright (C) 2012, 2013 Hewlett-Packard Development Company, L.P. # Copyright (C) 2012 Yahoo! Inc. # # Author: Scott Moser # Author: Juerg Haefliger # Author: Joshua Harlow # Author: Ben Howard # # This file is part of cloud-init. See LICENSE file for license information. from cloudinit import log as logging from cloudinit import type_utils, util LOG = logging.getLogger(__name__) # Normalizes an input group configuration which can be: # Comma seperated string or a list or a dictionary # # Returns dictionary of group names => members of that group which is the # standard form used in the rest of cloud-init def _normalize_groups(grp_cfg): if isinstance(grp_cfg, str): grp_cfg = grp_cfg.strip().split(",") if isinstance(grp_cfg, list): c_grp_cfg = {} for i in grp_cfg: if isinstance(i, dict): for k, v in i.items(): if not isinstance(v, (list, str)): raise TypeError( "Bad group member type %s" % (type_utils.obj_name(v)) ) if isinstance(v, list): c_grp_cfg.setdefault(k, []).extend(v) else: c_grp_cfg.setdefault(k, []).append(v) elif isinstance(i, str): if i not in c_grp_cfg: c_grp_cfg[i] = [] else: raise TypeError( "Unknown group name type %s" % (type_utils.obj_name(i)) ) grp_cfg = c_grp_cfg groups = {} if isinstance(grp_cfg, dict): for grp_name, grp_members in grp_cfg.items(): groups[grp_name] = util.uniq_merge_sorted(grp_members) else: raise TypeError( "Group config must be list, dict or string type only but found %s" % (type_utils.obj_name(grp_cfg)) ) return groups # Normalizes an input group configuration which can be: a list or a dictionary # # components that define the user config + 'name' (if a 'name' field does not # exist then the default user is assumed to 'own' that configuration.) # # Returns a dictionary of user names => user config which is the standard form # used in the rest of cloud-init. Note the default user will have a special # config entry 'default' which will be marked true and all other users will be # marked false. def _normalize_users(u_cfg, def_user_cfg=None): if isinstance(u_cfg, dict): ad_ucfg = [] for k, v in u_cfg.items(): if isinstance(v, (bool, int, float, str)): if util.is_true(v): ad_ucfg.append(str(k)) elif isinstance(v, dict): v["name"] = k ad_ucfg.append(v) else: raise TypeError( "Unmappable user value type %s for key %s" % (type_utils.obj_name(v), k) ) u_cfg = ad_ucfg elif isinstance(u_cfg, str): u_cfg = util.uniq_merge_sorted(u_cfg) users = {} for user_config in u_cfg: if isinstance(user_config, (list, str)): for u in util.uniq_merge(user_config): if u and u not in users: users[u] = {} elif isinstance(user_config, dict): n = user_config.pop("name", "default") prev_config = users.get(n) or {} users[n] = util.mergemanydict([prev_config, user_config]) else: raise TypeError( "User config must be dictionary/list or string " " types only and not %s" % (type_utils.obj_name(user_config)) ) # Ensure user options are in the right python friendly format if users: c_users = {} for uname, uconfig in users.items(): c_uconfig = {} for k, v in uconfig.items(): k = k.replace("-", "_").strip() if k: c_uconfig[k] = v c_users[uname] = c_uconfig users = c_users # Fix the default user into the actual default user name and replace it. def_user = None if users and "default" in users: def_config = users.pop("default") if def_user_cfg: # Pickup what the default 'real name' is and any groups that are # provided by the default config def_user_cfg = def_user_cfg.copy() def_user = def_user_cfg.pop("name") def_groups = def_user_cfg.pop("groups", []) # Pick any config + groups for the user name that we may have # extracted previously parsed_config = users.pop(def_user, {}) parsed_groups = parsed_config.get("groups", []) # Now merge the extracted groups with the default config provided users_groups = util.uniq_merge_sorted(parsed_groups, def_groups) parsed_config["groups"] = ",".join(users_groups) # The real config for the default user is the combination of the # default user config provided by the distro, the default user # config provided by the above merging for the user 'default' and # then the parsed config from the user's 'real name' which does not # have to be 'default' (but could be) users[def_user] = util.mergemanydict( [def_user_cfg, def_config, parsed_config] ) # Ensure that only the default user that we found (if any) is actually # marked as the default user for uname, uconfig in users.items(): uconfig["default"] = uname == def_user if def_user else False return users # Normalizes a set of user/users and group dictionary configuration into an # usable format so that the rest of cloud-init can understand using the default # user provided by the input distribution (if any) to allow mapping of the # 'default' user. # # Output is a dictionary of group names -> [member] (list) # and a dictionary of user names -> user configuration (dict) # # If 'user' exists, it will override # The 'users'[0] entry (if a list) otherwise it will just become an entry in # the returned dictionary (no override) def normalize_users_groups(cfg, distro): if not cfg: cfg = {} # Handle the previous style of doing this where the first user # overrides the concept of the default user if provided in the user: XYZ # format. old_user = {} if "user" in cfg and cfg["user"]: old_user = cfg["user"] # Translate it into a format that will be more useful going forward if isinstance(old_user, str): old_user = {"name": old_user} LOG.warning( "DEPRECATED: 'user' of type string is deprecated and will" " be removed in a future release. Use 'users' list instead." ) elif not isinstance(old_user, dict): LOG.warning( "Format for 'user' key must be a string or dictionary" " and not %s", type_utils.obj_name(old_user), ) old_user = {} # If no old user format, then assume the distro provides what the 'default' # user maps to, but notice that if this is provided, we won't automatically # inject a 'default' user into the users list, while if an old user format # is provided we will. distro_user_config = {} try: distro_user_config = distro.get_default_user() except NotImplementedError: LOG.warning( "Distro has not implemented default user access. No " "distribution provided default user will be normalized." ) # Merge the old user (which may just be an empty dict when not present) # with the distro provided default user configuration so that the old user # style picks up all the distribution specific attributes (if any) default_user_config = util.mergemanydict([old_user, distro_user_config]) base_users = cfg.get("users", []) if isinstance(base_users, (dict, str)): LOG.warning( "DEPRECATED: 'users' of type %s is deprecated and will be removed" " in a future release. Use 'users' as a list.", type(base_users), ) elif not isinstance(base_users, (list)): LOG.warning( "Format for 'users' key must be a comma-separated string" " or a dictionary or a list but found %s", type_utils.obj_name(base_users), ) base_users = [] if old_user: # When 'user:' is provided, it should be made as the default user if isinstance(base_users, list): base_users.append({"name": "default"}) elif isinstance(base_users, dict): base_users["default"] = dict(base_users).get("default", True) elif isinstance(base_users, str): base_users += ",default" groups = {} if "groups" in cfg: groups = _normalize_groups(cfg["groups"]) users = _normalize_users(base_users, default_user_config) return (users, groups) # Given a user dictionary config, extract the default user name and user config # and return them or return (None, None) if no default user is found def extract_default(users, default_name=None, default_config=None): if not users: return (default_name, default_config) def safe_find(entry): config = entry[1] if not config or "default" not in config: return False return config["default"] tmp_users = dict(filter(safe_find, users.items())) if not tmp_users: return (default_name, default_config) name = list(tmp_users)[0] config = tmp_users[name] config.pop("default", None) return (name, config) # vi: ts=4 expandtab