From: Mark Hymers Date: Thu, 29 Oct 2009 19:59:06 +0000 (+0000) Subject: update import_keyring X-Git-Url: https://git.decadent.org.uk/gitweb/?a=commitdiff_plain;h=63a936065dc2979df325eb34a205c3c97e0cd4ce;p=dak.git update import_keyring Signed-off-by: Mark Hymers --- diff --git a/dak/import_keyring.py b/dak/import_keyring.py index 0b670357..e26eb7e5 100755 --- a/dak/import_keyring.py +++ b/dak/import_keyring.py @@ -2,6 +2,7 @@ """ Imports a keyring into the database """ # Copyright (C) 2007 Anthony Towns +# Copyright (C) 2009 Mark Hymers # 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 @@ -20,12 +21,11 @@ ################################################################################ import sys, os, re -import apt_pkg, ldap, email.Utils +import apt_pkg, ldap from daklib.config import Config from daklib.dbconn import * - # Globals Options = None @@ -38,6 +38,7 @@ def get_uid_info(session): for (keyid, uid, name) in q.fetchall(): byname[uid] = (keyid, name) byid[keyid] = (uid, name) + return (byname, byid) def get_fingerprint_info(session): @@ -49,126 +50,6 @@ def get_fingerprint_info(session): ################################################################################ -def get_ldap_name(entry): - name = [] - for k in ["cn", "mn", "sn"]: - ret = entry.get(k) - if ret and ret[0] != "" and ret[0] != "-": - name.append(ret[0]) - return " ".join(name) - -################################################################################ - -class Keyring(object): - gpg_invocation = "gpg --no-default-keyring --keyring %s" +\ - " --with-colons --fingerprint --fingerprint" - keys = {} - fpr_lookup = {} - - def de_escape_gpg_str(self, str): - esclist = re.split(r'(\\x..)', str) - for x in range(1,len(esclist),2): - esclist[x] = "%c" % (int(esclist[x][2:],16)) - return "".join(esclist) - - def __init__(self, keyring): - self.cnf = Config() - k = os.popen(self.gpg_invocation % keyring, "r") - keys = self.keys - key = None - fpr_lookup = self.fpr_lookup - signingkey = False - for line in k.xreadlines(): - field = line.split(":") - if field[0] == "pub": - key = field[4] - (name, addr) = email.Utils.parseaddr(field[9]) - name = re.sub(r"\s*[(].*[)]", "", name) - if name == "" or addr == "" or "@" not in addr: - name = field[9] - addr = "invalid-uid" - name = self.de_escape_gpg_str(name) - keys[key] = {"email": addr} - if name != "": keys[key]["name"] = name - keys[key]["aliases"] = [name] - keys[key]["fingerprints"] = [] - signingkey = True - elif key and field[0] == "sub" and len(field) >= 12: - signingkey = ("s" in field[11]) - elif key and field[0] == "uid": - (name, addr) = email.Utils.parseaddr(field[9]) - if name and name not in keys[key]["aliases"]: - keys[key]["aliases"].append(name) - elif signingkey and field[0] == "fpr": - keys[key]["fingerprints"].append(field[9]) - fpr_lookup[field[9]] = key - - def generate_desired_users(self): - if Options["Generate-Users"]: - format = Options["Generate-Users"] - return self.generate_users_from_keyring(format) - if Options["Import-Ldap-Users"]: - return self.import_users_from_ldap() - return ({}, {}) - - def import_users_from_ldap(self): - LDAPDn = self.cnf["Import-LDAP-Fingerprints::LDAPDn"] - LDAPServer = self.cnf["Import-LDAP-Fingerprints::LDAPServer"] - l = ldap.open(LDAPServer) - l.simple_bind_s("","") - Attrs = l.search_s(LDAPDn, ldap.SCOPE_ONELEVEL, - "(&(keyfingerprint=*)(gidnumber=%s))" % (self.cnf["Import-Users-From-Passwd::ValidGID"]), - ["uid", "keyfingerprint", "cn", "mn", "sn"]) - - ldap_fin_uid_id = {} - - byuid = {} - byname = {} - keys = self.keys - fpr_lookup = self.fpr_lookup - - for i in Attrs: - entry = i[1] - uid = entry["uid"][0] - name = get_ldap_name(entry) - fingerprints = entry["keyFingerPrint"] - keyid = None - for f in fingerprints: - key = fpr_lookup.get(f, None) - if key not in keys: continue - keys[key]["uid"] = uid - - if keyid != None: continue - keyid = get_or_set_uid(uid).uid - byuid[keyid] = (uid, name) - byname[uid] = (keyid, name) - - return (byname, byuid) - - def generate_users_from_keyring(self, format): - byuid = {} - byname = {} - keys = self.keys - any_invalid = False - for x in keys.keys(): - if keys[x]["email"] == "invalid-uid": - any_invalid = True - keys[x]["uid"] = format % "invalid-uid" - else: - uid = format % keys[x]["email"] - keyid = get_or_set_uid(uid).uid - byuid[keyid] = (uid, keys[x]["name"]) - byname[uid] = (keyid, keys[x]["name"]) - keys[x]["uid"] = uid - if any_invalid: - uid = format % "invalid-uid" - keyid = get_or_set_uid(uid).uid - byuid[keyid] = (uid, "ungeneratable user id") - byname[uid] = (keyid, "ungeneratable user id") - return (byname, byuid) - -################################################################################ - def usage (exit_code=0): print """Usage: dak import-keyring [OPTION]... [KEYRING] -h, --help show this help and exit. @@ -197,6 +78,7 @@ def main(): ### Parse options Options = cnf.SubTree("Import-Keyring::Options") + if Options["Help"]: usage() @@ -204,7 +86,6 @@ def main(): usage(1) ### Keep track of changes made - changes = [] # (uid, changes strings) ### Initialise @@ -216,22 +97,21 @@ def main(): ### Parse the keyring keyringname = keyring_names[0] - keyring = Keyring(keyringname) - - is_dm = "false" - if cnf.has_key("Import-Keyring::"+keyringname+"::Debian-Maintainer"): - session.execute("UPDATE keyrings SET debian_maintainer = :dm WHERE name = :name", - {'dm': cnf["Import-Keyring::"+keyringname+"::Debian-Maintainer"], - 'name': keyringname.split("/")[-1]}) + keyring = get_keyring(keyringname, session) + if not keyring: + print "E: Can't load keyring %s from database" % keyringname + sys.exit(1) - is_dm = cnf["Import-Keyring::"+keyringname+"::Debian-Maintainer"] - - keyring_id = get_or_set_keyring( - keyringname.split("/")[-1], session, - ).keyring_id + keyring.load_keys(keyringname) ### Generate new uid entries if they're needed (from LDAP or the keyring) - (desuid_byname, desuid_byid) = keyring.generate_desired_users() + if Options["Generate-Users"]: + format = Options["Generate-Users"] + (desuid_byname, desuid_byid) = keyring.generate_users_from_keyring(Options["Generate-Users"], session) + elif Options["Import-Ldap-Users"]: + (desuid_byname, desuid_byid) = keyring.import_users_from_ldap(session) + else: + (desuid_byname, desuid_byid) = ({}, {}) ### Cache all the existing uid entries (db_uid_byname, db_uid_byid) = get_uid_info(session) @@ -240,7 +120,7 @@ def main(): for keyid in desuid_byid.keys(): uid = (keyid, desuid_byid[keyid][0]) name = desuid_byid[keyid][1] - oname = db_uid_byname[keyid][1] + oname = db_uid_byid[keyid][1] if name and oname != name: changes.append((uid[1], "Full name: %s" % (name))) session.execute("UPDATE uid SET name = :name WHERE id = :keyid", @@ -258,17 +138,28 @@ def main(): if keyid == None: keyid = db_fin_info.get(keyring.keys[z]["fingerprints"][0], [None])[0] for y in keyring.keys[z]["fingerprints"]: - fpr[y] = (keyid,keyring_id) + fpr[y] = (keyid, keyring.keyring_id) # For any keys that used to be in this keyring, disassociate them. # We don't change the uid, leaving that for historical info; if # the id should change, it'll be set when importing another keyring. for f,(u,fid,kr) in db_fin_info.iteritems(): - if kr != keyring_id: continue - if f in fpr: continue + if kr != keyring.keyring_id: + continue + + if f in fpr: + continue + changes.append((db_uid_byid.get(u, [None])[0], "Removed key: %s" % (f))) - session.execute("UPDATE fingerprint SET keyring = NULL WHERE id = :fprid", {'fprid': fid}) + session.execute("""UPDATE fingerprint + SET keyring = NULL, + source_acl_id = NULL, + binary_acl_id = NULL, + binary_reject = TRUE + WHERE id = :fprid""", {'fprid': fid}) + + session.execute("""DELETE FROM binary_acl_map WHERE fingerprint_id = :fprid""", {'fprid': fid}) # For the keys in this keyring, add/update any fingerprints that've # changed. @@ -276,19 +167,36 @@ def main(): for f in fpr: newuid = fpr[f][0] newuiduid = db_uid_byid.get(newuid, [None])[0] + (olduid, oldfid, oldkid) = db_fin_info.get(f, [-1,-1,-1]) - if olduid == None: olduid = -1 - if oldkid == None: oldkid = -1 + + if olduid == None: + olduid = -1 + + if oldkid == None: + oldkid = -1 + if oldfid == -1: changes.append((newuiduid, "Added key: %s" % (f))) + fp = Fingerprint() + fp.fingerprint = f + fp.keyring_id = keyring.keyring_id if newuid: - session.execute("""INSERT INTO fingerprint (fingerprint, uid, keyring) - VALUES (:fpr, :uid, :keyring)""", - {'fpr': f, 'uid': uid, 'keyring': keyring_id}) - else: - session.execute("""INSERT INTO fingerprint (fingerprint, keyring) - VALUES (:fpr, :keyring)""", - {'fpr': f, 'keyring': keyring_id}) + fp.uid_id = newuid + + fp.binary_acl_id = keyring.default_binary_acl_id + fp.source_acl_id = keyring.default_source_acl_id + fp.default_binary_reject = keyring.default_binary_reject + session.add(fp) + session.flush() + + for k in keyring.keyring_acl_map: + ba = BinaryACLMap() + ba.fingerprint_id = fp.fingerprint_id + ba.architecture_id = k.architecture_id + session.add(ba) + session.flush() + else: if newuid and olduid != newuid: if olduid != -1: @@ -297,25 +205,62 @@ def main(): else: changes.append((newuiduid, "Linked key: %s" % f)) changes.append((newuiduid, " (formerly unowned)")) + session.execute("UPDATE fingerprint SET uid = :uid WHERE id = :fpr", {'uid': newuid, 'fpr': oldfid}) - if oldkid != keyring_id: + # Don't move a key from a keyring with a higher priority to a lower one + if oldkid != keyring.keyring_id: + movekey = False + if oldkid == -1: + movekey = True + else: + try: + oldkeyring = session.query(Keyring).filter_by(keyring_id=oldkid).one() + except NotFoundError: + print "ERROR: Cannot find old keyring with id %s" % oldkid + sys.exit(1) + + if oldkeyring.priority < keyring.priority: + movekey = True + # Only change the keyring if it won't result in a loss of permissions - q = session.execute("SELECT debian_maintainer FROM keyrings WHERE id = :keyring", - {'keyring': keyring_id}) - if is_dm == "false" and not q.fetchall()[0][0]: - session.execute("UPDATE fingerprint SET keyring = :keyring WHERE id = :fpr", - {'keyring': keyring_id, 'fpr': oldfid}) + if movekey: + session.execute("""DELETE FROM binary_acl_map WHERE fingerprint_id = :fprid""", {'fprid': oldfid}) + + session.execute("""UPDATE fingerprint + SET keyring = :keyring, + source_acl_id = :source_acl_id, + binary_acl_id = :binary_acl_id, + binary_reject = :binary_reject + WHERE id = :fpr""", + {'keyring': keyring.keyring_id, + 'source_acl_id': keyring.default_source_acl_id, + 'binary_acl_id': keyring.default_binary_acl_id, + 'binary_reject': keyring.default_binary_reject, + 'fpr': oldfid}) + + session.flush() + + for k in keyring.keyring_acl_map: + ba = BinaryACLMap() + ba.fingerprint_id = oldfid + ba.architecture_id = k.architecture_id + session.add(ba) + session.flush() + else: - print "Key %s exists in both DM and DD keyrings. Not demoting." % (f) + print "Key %s exists in both %s and %s keyrings. Not demoting." % (oldkeyring.keyring_name, + keyring.keyring_name) # All done! session.commit() + # Print a summary changesd = {} for (k, v) in changes: - if k not in changesd: changesd[k] = "" + if k not in changesd: + changesd[k] = "" changesd[k] += " %s\n" % (v) keys = changesd.keys() diff --git a/daklib/dbconn.py b/daklib/dbconn.py index c16cb2f9..9b37af70 100755 --- a/daklib/dbconn.py +++ b/daklib/dbconn.py @@ -34,6 +34,7 @@ ################################################################################ import os +import re import psycopg2 import traceback @@ -913,20 +914,139 @@ __all__.append('get_or_set_fingerprint') ################################################################################ +# Helper routine for Keyring class +def get_ldap_name(entry): + name = [] + for k in ["cn", "mn", "sn"]: + ret = entry.get(k) + if ret and ret[0] != "" and ret[0] != "-": + name.append(ret[0]) + return " ".join(name) + +################################################################################ + class Keyring(object): + gpg_invocation = "gpg --no-default-keyring --keyring %s" +\ + " --with-colons --fingerprint --fingerprint" + + keys = {} + fpr_lookup = {} + def __init__(self, *args, **kwargs): pass def __repr__(self): return '' % self.keyring_name + def de_escape_gpg_str(self, str): + esclist = re.split(r'(\\x..)', str) + for x in range(1,len(esclist),2): + esclist[x] = "%c" % (int(esclist[x][2:],16)) + return "".join(esclist) + + def load_keys(self, keyring): + import email.Utils + + if not self.keyring_id: + raise Exception('Must be initialized with database information') + + k = os.popen(self.gpg_invocation % keyring, "r") + key = None + signingkey = False + + for line in k.xreadlines(): + field = line.split(":") + if field[0] == "pub": + key = field[4] + (name, addr) = email.Utils.parseaddr(field[9]) + name = re.sub(r"\s*[(].*[)]", "", name) + if name == "" or addr == "" or "@" not in addr: + name = field[9] + addr = "invalid-uid" + name = self.de_escape_gpg_str(name) + self.keys[key] = {"email": addr} + if name != "": + self.keys[key]["name"] = name + self.keys[key]["aliases"] = [name] + self.keys[key]["fingerprints"] = [] + signingkey = True + elif key and field[0] == "sub" and len(field) >= 12: + signingkey = ("s" in field[11]) + elif key and field[0] == "uid": + (name, addr) = email.Utils.parseaddr(field[9]) + if name and name not in self.keys[key]["aliases"]: + self.keys[key]["aliases"].append(name) + elif signingkey and field[0] == "fpr": + self.keys[key]["fingerprints"].append(field[9]) + self.fpr_lookup[field[9]] = key + + def import_users_from_ldap(self, session): + import ldap + cnf = Config() + + LDAPDn = cnf["Import-LDAP-Fingerprints::LDAPDn"] + LDAPServer = cnf["Import-LDAP-Fingerprints::LDAPServer"] + + l = ldap.open(LDAPServer) + l.simple_bind_s("","") + Attrs = l.search_s(LDAPDn, ldap.SCOPE_ONELEVEL, + "(&(keyfingerprint=*)(gidnumber=%s))" % (cnf["Import-Users-From-Passwd::ValidGID"]), + ["uid", "keyfingerprint", "cn", "mn", "sn"]) + + ldap_fin_uid_id = {} + + byuid = {} + byname = {} + + for i in Attrs: + entry = i[1] + uid = entry["uid"][0] + name = get_ldap_name(entry) + fingerprints = entry["keyFingerPrint"] + keyid = None + for f in fingerprints: + key = self.fpr_lookup.get(f, None) + if key not in self.keys: + continue + self.keys[key]["uid"] = uid + + if keyid != None: + continue + keyid = get_or_set_uid(uid, session).uid_id + byuid[keyid] = (uid, name) + byname[uid] = (keyid, name) + + return (byname, byuid) + + def generate_users_from_keyring(self, format, session): + byuid = {} + byname = {} + any_invalid = False + for x in self.keys.keys(): + if self.keys[x]["email"] == "invalid-uid": + any_invalid = True + self.keys[x]["uid"] = format % "invalid-uid" + else: + uid = format % self.keys[x]["email"] + keyid = get_or_set_uid(uid, session).uid_id + byuid[keyid] = (uid, self.keys[x]["name"]) + byname[uid] = (keyid, self.keys[x]["name"]) + self.keys[x]["uid"] = uid + + if any_invalid: + uid = format % "invalid-uid" + keyid = get_or_set_uid(uid, session).uid_id + byuid[keyid] = (uid, "ungeneratable user id") + byname[uid] = (keyid, "ungeneratable user id") + + return (byname, byuid) + __all__.append('Keyring') @session_wrapper -def get_or_set_keyring(keyring, session=None): +def get_keyring(keyring, session=None): """ - If C{keyring} does not have an entry in the C{keyrings} table yet, create one - and return the new Keyring + If C{keyring} does not have an entry in the C{keyrings} table yet, return None If C{keyring} already has an entry, simply return the existing Keyring @type keyring: string @@ -941,12 +1061,9 @@ def get_or_set_keyring(keyring, session=None): try: return q.one() except NoResultFound: - obj = Keyring(keyring_name=keyring) - session.add(obj) - session.commit_or_flush() - return obj + return None -__all__.append('get_or_set_keyring') +__all__.append('get_keyring') ################################################################################