def __init__(self, auth=None):
if auth is None:
auth = {
'AuthMethod':
Parameter(str, "Authentication method to use", optional=False)
}
Parameter.__init__(self, auth, "API authentication structure")
class methodSignature(Method):
"""
Returns an array of known signatures (an array of arrays) for the
method name passed. If no signatures are known, returns a
none-array (test for type != array to detect missing signature).
"""
roles = []
accepts = [Parameter(str, "Method name")]
returns = [Parameter([str], "Method signature")]
def __init__(self, api):
Method.__init__(self, api)
self.name = "system.methodSignature"
def possible_signatures(self, signature, arg):
"""
Return a list of the possible new signatures given a current
signature and the next argument.
"""
if isinstance(arg, Mixed):
arg_types = [xmlrpc_type(mixed_arg) for mixed_arg in arg]
else:
arg_types = [xmlrpc_type(arg)]
return [signature + [arg_type] for arg_type in arg_types]
def signatures(self, returns, args):
"""
Returns a list of possible signatures given a return value and
a set of arguments.
"""
signatures = [[xmlrpc_type(returns)]]
for arg in args:
# Create lists of possible new signatures for each current
# signature. Reduce the list of lists back down to a
# single list.
signatures = reduce(lambda a, b: a + b,
[self.possible_signatures(signature, arg) \
for signature in signatures])
return signatures
def call(self, method):
function = self.api.callable(method)
(min_args, max_args, defaults) = function.args()
signatures = []
assert len(max_args) >= len(min_args)
for num_args in range(len(min_args), len(max_args) + 1):
signatures += self.signatures(function.returns,
function.accepts[:num_args])
return signatures
class Content(Row):
table_name = 'contents'
primary_key = 'content_id'
join_tables = ['user_content']
fields = {
'content_id': Parameter(int, "Content server identifier"),
'host_url': Parameter(str, "Base URL of the content server"),
'owner': Parameter(long, "User ID of the user that is responsible for this content server")
}
def __init__(self, fields = {}, filter = {}, doc = "Attribute filter"):
# Store the filter in our dict instance
dict.__init__(self, filter)
# Declare ourselves as a type of parameter that can take
# either a value or a list of values for each of the specified
# fields.
self.fields = dict ( [ ( field, Mixed (expected, [expected]))
for (field,expected) in fields.iteritems() ] )
# Null filter means no filter
Parameter.__init__(self, self.fields, doc = doc, nullok = True)
def __init__(self, fields={}, filter={}, doc="Attribute filter"):
# Store the filter in our dict instance
dict.__init__(self, filter)
# Declare ourselves as a type of parameter that can take
# either a value or a list of values for each of the specified
# fields.
self.fields = dict([(field, Mixed(expected, [expected]))
for (field, expected) in fields.iteritems()])
# Null filter means no filter
Parameter.__init__(self, self.fields, doc=doc, nullok=True)
def __init__(self):
Auth.__init__(
self, {
'AuthMethod':
Parameter(str,
"Authentication method to use, always 'anonymous'",
False),
})
def __init__(self):
Auth.__init__(
self, {
'AuthMethod':
Parameter(
str,
"Authentication method to use, always 'password' or 'capability'",
optional=False),
'Username':
Parameter(str,
"PlanetLab username, typically an e-mail address",
optional=False),
'AuthString':
Parameter(str,
"Authentication string, typically a password",
optional=False),
})
class methodHelp(Method):
"""
Returns help text if defined for the method passed, otherwise
returns an empty string.
"""
roles = []
accepts = [Parameter(str, 'Method name')]
returns = Parameter(str, 'Method help')
def __init__(self, api):
Method.__init__(self, api)
self.name = "system.methodHelp"
def call(self, method):
function = self.api.callable(method)
return function.help()
class multicall(Method):
"""
Process an array of calls, and return an array of results. Calls
should be structs of the form
{'methodName': string, 'params': array}
Each result will either be a single-item array containg the result
value, or a struct of the form
{'faultCode': int, 'faultString': string}
This is useful when you need to make lots of small calls without
lots of round trips.
"""
roles = []
accepts = [[{'methodName': Parameter(str, "Method name"),
'params': Parameter(list, "Method arguments")}]]
returns = Mixed([Mixed()],
{'faultCode': Parameter(int, "XML-RPC fault code"),
'faultString': Parameter(int, "XML-RPC fault detail")})
def __init__(self, api):
Method.__init__(self, api)
self.name = "system.multicall"
def call(self, calls):
# Some error codes, borrowed from xmlrpc-c.
REQUEST_REFUSED_ERROR = -507
results = []
for call in calls:
try:
name = call['methodName']
params = call['params']
if name == 'system.multicall':
errmsg = "Recursive system.multicall forbidden"
raise xmlrpclib.Fault(REQUEST_REFUSED_ERROR, errmsg)
result = [self.api.call(self.source, name, *params)]
except xmlrpclib.Fault, fault:
result = {'faultCode': fault.faultCode,
'faultString': fault.faultString}
except:
class listMethods(Method):
"""
This method lists all the methods that the XML-RPC server knows
how to dispatch.
"""
roles = []
accepts = []
returns = Parameter(list, 'List of methods')
def __init__(self, api):
Method.__init__(self, api)
self.name = "system.listMethods"
def call(self):
return self.api.all_methods
class MDServer(Row):
table_name = 'mdservers'
primary_key = 'server_id'
join_tables = ['user_mdserver', 'mdserver_user']
fields = {
'server_id':
Parameter(long, "Server ID"),
'name':
Parameter(
str,
"Owner-given name of this metadata server (will be URL-encoded)"),
'host':
Parameter(str, "Name of the host that hosts this metadata server"),
'portnum':
Parameter(int,
"Port on which this metadata server listens",
min=1025,
max=65534),
'status':
Parameter(str, "Desired status of this metadata server"),
'auth_read':
Parameter(bool,
"Must a user authenticate with the server to read from it?"),
'auth_write':
Parameter(bool,
"Must a user authenticate with the server to write to it?"),
'owner':
Parameter(
int,
"User ID of the user who created and controls this metadata server"
),
'user_ids':
Parameter([int],
"User IDs of users subscribed to this metadata server")
}
related_fields = {'user_ids': [Parameter(int, "Subscribed user ID")]}
def __init__(self, api, fields={}):
super(MDServer, self).__init__(api, fields)
import SMDS.user
self._add_user = Row.add_object(SMDS.user.User, 'mdserver_user')
self._remove_user = Row.remove_object(SMDS.user.User, 'mdserver_user')
def add_user(self, obj, commit=True):
self._add_user(self, obj, commit=commit)
def remove_user(self, obj, commit=True):
self._remove_user(self, obj, commit=commit)
@classmethod
def refresh(api, m):
md = MDServers(api, [m['server_id']])[0]
m.update(md)
def remove_users(self, user_ids):
import SMDS.user
users = SMDS.user.Users(self.api, user_ids)
if users:
for user in users:
self.remove_user(user, commit=False)
self.commit()
def create_server(self):
# signal the controller on this metadata server's host to create this server
self['status'] = 'stopped'
server = self.api.connect_mdctl(self['host'])
import SMDS.user
# get our users
if self.get('user_ids') == None:
self['user_ids'] = []
user_ids = self['user_ids']
users = []
if user_ids:
users = SMDS.user.Users(self.api, user_ids)
logger.info("Creating metadata server '%s' with users '%s'" %
(self['name'], [user['username'] for user in users]))
rc = 0
try:
as_dict = {}
as_dict.update(self)
user_dicts = []
for user in users:
user_dict = {}
user_dict.update(user)
user_dicts.append(user_dict)
rc = server.create_server(as_dict, user_dicts)
except Exception, e:
logger.exception(e, "Could not restart metadata server")
rc = -500
if rc == 1:
self.sync()
else:
logger.error("Could not create metadata server, rc = %s" % rc)
return rc
def Parameter(doc):
return Mixed(
Parameter(int, doc + " (unix timestamp)"),
Parameter(str, doc + " (formatted as %s)" % Timestamp.sql_format),
)
def __init__(self, auth = None):
if auth is None:
auth = {'AuthMethod': Parameter(str, "Authentication method to use", optional = False)}
Parameter.__init__(self, auth, "API authentication structure")
class User(Row):
table_name = 'users'
primary_key = 'user_id'
fields = {
'user_id': Parameter(long, "User ID"),
'username': Parameter(str, "Username", max=128),
'password': Parameter(str, "Password hash", max=254),
'email': Parameter(str, "User's email address", max=254),
'enabled': Parameter(bool, "Has the user been enabled?"),
'roles': Parameter([str], "List of roles this user fulfulls"),
'max_mdservers': Parameter(int, "Maximum number of metadata servers this user can own"),
'max_contents': Parameter(int, "Maximum number of content servers this user can register"),
'my_mdserver_ids': Parameter([int], "Server IDs of servers owned by this user"),
'sub_mdserver_ids': Parameter([int], "Server IDs of servers this user is subscribed to"),
'content_ids': Parameter([int], "Content IDs of content servers owned by this user")
}
related_fields = {
'my_mdserver_ids': [Parameter(int, "Server ID")],
'sub_mdserver_ids': [Parameter(int, "Server ID")],
'content_ids': [Parameter(int, "Content ID")]
}
user_content_view = 'user_contents'
user_mdserver_view = 'user_mdservers'
join_tables = ['user_mdserver', 'user_content', 'mdserver_user']
add_mdserver = Row.add_object(SMDS.mdserver.MDServer, 'user_mdserver')
remove_mdserver = Row.remove_object(SMDS.mdserver.MDServer, 'user_mdserver')
add_content = Row.add_object(Content, 'user_content')
remove_content = Row.remove_object(Content, 'user_content')
public_fieldnames = filter( lambda f: f not in ['password'], fields.keys())
register_fieldnames = ['username','password','email']
def public(self):
ret = {}
for f in self.public_fieldnames:
ret[f] = self.get(f)
return ret
@staticmethod
def refresh( api, u):
user = Users( api, [u['user_id']] )[0]
u.update( user )
