def trust_id_for_repo(trust_map, fms_id, repo_hash):
""" Accept index updates from an fms id for a repo."""
assert is_fms_id(fms_id)
assert is_hex_string(repo_hash)
hashes = trust_map.get(fms_id, ())
if repo_hash in hashes:
return False
hashes = list(hashes)
hashes.append(repo_hash)
trust_map[fms_id] = tuple(hashes)
return True
def validate_trust_map_entry(cls, cfg, fields):
""" INTERNAL: Raise a ValueError for invalid trust map entries. """
if not is_fms_id(fields[0]):
raise ValueError("%s doesn't look like an fms id." % fields[0])
if len(fields) < 2:
raise ValueError("No USK hashes for fms id: %s?" % fields[0])
for value in fields[1:]:
if not is_hex_string(value):
raise ValueError("%s doesn't look like a repo hash." % value)
if fields[0] in cfg.fmsread_trust_map:
raise ValueError(("%s appears more than once in the " +
"[fmsread_trust_map] section.") % fields[0])
def trust_id_for_repo(trust_map, fms_id, repo_hash):
""" Accept index updates from an fms id for a repo."""
assert is_fms_id(fms_id)
assert is_hex_string(repo_hash)
hashes = trust_map.get(fms_id, ())
if repo_hash in hashes:
return False
hashes = list(hashes)
hashes.append(repo_hash)
trust_map[fms_id] = tuple(hashes)
return True
def validate_trust_map_entry(cls, cfg, fields):
""" INTERNAL: Raise a ValueError for invalid trust map entries. """
if not is_fms_id(fields[0]):
raise ValueError("%s doesn't look like an fms id." %
fields[0])
if len(fields) < 2:
raise ValueError("No USK hashes for fms id: %s?" %
fields[0])
for value in fields[1:]:
if not is_hex_string(value):
raise ValueError("%s doesn't look like a repo hash." %
value)
if fields[0] in cfg.fmsread_trust_map:
raise ValueError(("%s appears more than once in the "
+ "[fmsread_trust_map] section.") %
fields[0])
def parse_trust_args(params, opts):
""" INTERNAL: Helper function to parse --hash and --fmsid. """
if not opts.get('hash', []):
raise util.Abort("Use --hash to set the USK hash.")
if len(opts['hash']) != 1:
raise util.Abort("Only one --hash value is allowed.")
if not is_hex_string(opts['hash'][0]):
raise util.Abort("[%s] doesn't look like a USK hash." %
opts['hash'][0])
if not opts.get('fmsid', []):
raise util.Abort("Use --fmsid to set the FMS id.")
if len(opts['fmsid']) != 1:
raise util.Abort("Only one --fmsid value is allowed.")
if not is_fms_id(opts['fmsid'][0]):
raise util.Abort("[%s] doesn't look like an FMS id."
% opts['fmsid'][0])
params['FMSREAD_HASH'] = opts['hash'][0]
params['FMSREAD_FMSID'] = opts['fmsid'][0]
def parse_trust_args(params, opts):
""" INTERNAL: Helper function to parse --hash and --fmsid. """
if opts.get('hash', []) == []:
raise util.Abort("Use --hash to set the USK hash.")
if len(opts['hash']) != 1:
raise util.Abort("Only one --hash value is allowed.")
if not is_hex_string(opts['hash'][0]):
raise util.Abort("[%s] doesn't look like a USK hash." %
opts['hash'][0])
if opts.get('fmsid', []) == []:
raise util.Abort("Use --fmsid to set the FMS id.")
if len(opts['fmsid']) != 1:
raise util.Abort("Only one --fmsid value is allowed.")
if not is_fms_id(opts['fmsid'][0]):
raise util.Abort("[%s] doesn't look like an FMS id." %
opts['fmsid'][0])
params['FMSREAD_HASH'] = opts['hash'][0]
params['FMSREAD_FMSID'] = opts['fmsid'][0]
def untrust_id_for_repo(trust_map, fms_id, repo_hash):
""" Stop accepting index updates from an fms id for a repo."""
assert is_fms_id(fms_id)
assert is_hex_string(repo_hash)
if not fms_id in trust_map:
return False
hashes = list(trust_map[fms_id])
# Paranoia. There shouldn't be duplicates.
count = 0
while repo_hash in hashes:
hashes.remove(repo_hash)
count += 1
if len(hashes) == 0:
del trust_map[fms_id]
return True
trust_map[fms_id] = tuple(hashes)
return count > 0
def untrust_id_for_repo(trust_map, fms_id, repo_hash):
""" Stop accepting index updates from an fms id for a repo."""
assert is_fms_id(fms_id)
assert is_hex_string(repo_hash)
if not fms_id in trust_map:
return False
hashes = list(trust_map[fms_id])
# Paranoia. There shouldn't be duplicates.
count = 0
while repo_hash in hashes:
hashes.remove(repo_hash)
count += 1
if len(hashes) == 0:
del trust_map[fms_id]
return True
trust_map[fms_id] = tuple(hashes)
return count > 0
