X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/2125e869604558b82c61dfc788400a9a29fcc791..60e6df8b7ee5e0cb1a700a62bd4c6daca6520bb9:/code/main.py diff --git a/code/main.py b/code/main.py index 91ce41f..7513973 100755 --- a/code/main.py +++ b/code/main.py @@ -11,6 +11,7 @@ import simplejson import sys import time import urllib +import random from StringIO import StringIO def revertStandardError(): @@ -39,6 +40,15 @@ import validation import cache_acls from webcommon import InvalidInput, CodeError, State import controls +from getafsgroups import getAfsGroupMembers + +def pathSplit(path): + if path.startswith('/'): + path = path[1:] + i = path.find('/') + if i == -1: + i = len(path) + return path[:i], path[i:] class Checkpoint: def __init__(self): @@ -141,7 +151,7 @@ def parseCreate(username, state, fields): cdrom=getattr(validate, 'cdrom', None), autoinstall=getattr(validate, 'autoinstall', None)) -def create(username, state, fields): +def create(username, state, path, fields): """Handler for create requests.""" try: parsed_fields = parseCreate(username, state, fields) @@ -204,14 +214,14 @@ def getListDict(username, state): can_clone=can_clone) return d -def listVms(username, state, fields): +def listVms(username, state, path, fields): """Handler for list requests.""" checkpoint.checkpoint('Getting list dict') d = getListDict(username, state) checkpoint.checkpoint('Got list dict') return templates.list(searchList=[d]) -def vnc(username, state, fields): +def vnc(username, state, path, fields): """VNC applet page. Note that due to same-domain restrictions, the applet connects to @@ -308,7 +318,7 @@ def getDiskInfo(data_dict, machine): data_dict['%s_size' % name] = "%0.1f GiB" % (disk.size / 1024.) return disk_fields -def command(username, state, fields): +def command(username, state, path, fields): """Handler for running commands like boot and delete on a VM.""" back = fields.getfirst('back') try: @@ -332,7 +342,7 @@ def command(username, state, fields): elif back == 'info': machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine return ({'Status': '303 See Other', - 'Location': '/info?machine_id=%d' % machine.machine_id}, + 'Location': 'info?machine_id=%d' % machine.machine_id}, "You shouldn't see this message.") else: raise InvalidInput('back', back, 'Not a known back page.') @@ -394,7 +404,7 @@ def modifyDict(username, state, fields): command="modify", machine=machine) -def modify(username, state, fields): +def modify(username, state, path, fields): """Handler for modifying attributes of a machine.""" try: modify_dict = modifyDict(username, state, fields) @@ -414,7 +424,7 @@ def modify(username, state, fields): return templates.info(searchList=[info_dict]) -def helpHandler(username, state, fields): +def helpHandler(username, state, path, fields): """Handler for help messages.""" simple = fields.getfirst('simple') subjects = fields.getlist('subject') @@ -465,7 +475,7 @@ console will suffer artifacts. return templates.help(searchList=[d]) -def badOperation(u, s, e): +def badOperation(u, s, p, e): """Function called when accessing an unknown URI.""" return ({'Status': '404 Not Found'}, 'Invalid operation.') @@ -564,18 +574,29 @@ def infoDict(username, state, machine): fields = fields) return d -def info(username, state, fields): +def info(username, state, path, fields): """Handler for info on a single VM.""" machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine d = infoDict(username, state, machine) checkpoint.checkpoint('Got infodict') return templates.info(searchList=[d]) -def unauthFront(_, _2, fields): +def unauthFront(_, _2, _3, fields): """Information for unauth'd users.""" return templates.unauth(searchList=[{'simple' : True}]) -def throwError(_, __, ___): +def overlord(username, state, path, fields): + if path == '': + return ({'Status': '303 See Other', + 'Location': 'overlord/'}, + "You shouldn't see this message.") + if not username in getAfsGroupMembers('system:xvm', 'athena.mit.edu'): + raise InvalidInput('username', username, 'Not an overlord.') + newstate = State(username, overlord=True) + newstate.environ = state.environ + return handler(username, newstate, path, fields) + +def throwError(_, __, ___, ____): """Throw an error, to test the error-tracing mechanisms.""" raise RuntimeError("test of the emergency broadcast system") @@ -587,6 +608,7 @@ mapping = dict(list=listVms, create=create, help=helpHandler, unauth=unauthFront, + overlord=overlord, errortest=throwError) def printHeaders(headers): @@ -625,6 +647,14 @@ def getUser(environ): """Return the current user based on the SSL environment variables""" return environ.get('REMOTE_USER', None) +def handler(username, state, path, fields): + operation, path = pathSplit(path) + if not operation: + operation = 'list' + print 'Starting', operation + fun = mapping.get(operation, badOperation) + return fun(username, state, path, fields) + class App: def __init__(self, environ, start_response): self.environ = environ @@ -634,28 +664,23 @@ class App: self.state = State(self.username) self.state.environ = environ + random.seed() #sigh + def __iter__(self): + start_time = time.time() sipb_xen_database.clear_cache() sys.stderr = StringIO() fields = cgi.FieldStorage(fp=self.environ['wsgi.input'], environ=self.environ) operation = self.environ.get('PATH_INFO', '') if not operation: - self.start("301 Moved Permanently", [('Location', - self.environ['SCRIPT_NAME']+'/')]) + self.start("301 Moved Permanently", [('Location', './')]) return if self.username is None: operation = 'unauth' - if operation.startswith('/'): - operation = operation[1:] - if not operation: - operation = 'list' - print 'Starting', operation - start_time = time.time() - fun = mapping.get(operation, badOperation) try: checkpoint.checkpoint('Before') - output = fun(self.username, self.state, fields) + output = handler(self.username, self.state, operation, fields) checkpoint.checkpoint('After') headers = dict(DEFAULT_HEADERS)