X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/82e2588bdcedd33f4b4be714490d62359681d4db..e11cdd5476f7f1a456ece94862c211a1b83b093c:/code/main.py?ds=inline diff --git a/code/main.py b/code/main.py index 1fbe0d0..a9e54a8 100755 --- a/code/main.py +++ b/code/main.py @@ -6,6 +6,7 @@ import cPickle import cgi import datetime import hmac +import random import sha import simplejson import sys @@ -31,16 +32,25 @@ if __name__ == '__main__': import atexit atexit.register(printError) -sys.path.append('/home/ecprice/.local/lib/python2.5/site-packages') - import templates from Cheetah.Template import Template -import sipb_xen_database -from sipb_xen_database import Machine, CDROM, ctx, connect, MachineAccess, Type, Autoinstall import validation import cache_acls from webcommon import InvalidInput, CodeError, State import controls +from getafsgroups import getAfsGroupMembers +import sipb_xen_database +from invirt import database +from sipb_xen_database import Machine, CDROM, ctx, connect, MachineAccess, Type, Autoinstall +from invirt.config import structs as config + +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): @@ -136,14 +146,14 @@ def hasVnc(status): return False def parseCreate(username, state, fields): - kws = dict([(kw, fields.getfirst(kw)) for kw in 'name description owner memory disksize vmtype cdrom clone_from'.split()]) + kws = dict([(kw, fields.getfirst(kw)) for kw in 'name description owner memory disksize vmtype cdrom autoinstall'.split()]) validate = validation.Validate(username, state, strict=True, **kws) return dict(contact=username, name=validate.name, description=validate.description, memory=validate.memory, disksize=validate.disksize, owner=validate.owner, machine_type=validate.vmtype, cdrom=getattr(validate, 'cdrom', None), - clone_from=getattr(validate, 'clone_from', 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) @@ -206,14 +216,14 @@ 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 @@ -247,6 +257,11 @@ def vnc(username, state, fields): token = {'data': pickled_data, 'digest': m.digest()} token = cPickle.dumps(token) token = base64.urlsafe_b64encode(token) + host = controls.listHost(machine) + if host: + port = 10003 + [h.hostname for h in config.hosts].index(host) + else: + port = 5900 # dummy status = controls.statusInfo(machine) has_vnc = hasVnc(status) @@ -256,6 +271,7 @@ def vnc(username, state, fields): has_vnc=has_vnc, machine=machine, hostname=state.environ.get('SERVER_NAME', 'localhost'), + port=port, authtoken=token) return templates.vnc(searchList=[d]) @@ -267,7 +283,7 @@ def getHostname(nic): if nic.hostname and '.' in nic.hostname: return nic.hostname elif nic.machine: - return nic.machine.name + '.xvm.mit.edu' + return nic.machine.name + '.' + config.dns.domains[0] else: return None @@ -310,7 +326,7 @@ 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: @@ -334,7 +350,7 @@ 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.') @@ -396,7 +412,7 @@ 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) @@ -416,7 +432,7 @@ 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') @@ -424,8 +440,8 @@ def helpHandler(username, state, fields): help_mapping = {'ParaVM Console': """ ParaVM machines do not support local console access over VNC. To access the serial console of these machines, you can SSH with Kerberos -to console.xvm.mit.edu, using the name of the machine as your -username.""", +to console.%s, using the name of the machine as your +username.""" % config.dns.domains[0], 'HVM/ParaVM': """ HVM machines use the virtualization features of the processor, while ParaVM machines use Xen's emulation of virtualization features. You @@ -467,7 +483,7 @@ 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.') @@ -483,6 +499,7 @@ def infoDict(username, state, machine): cputime = None else: main_status = dict(status[1:]) + main_status['host'] = controls.listHost(machine) start_time = float(main_status.get('start_time', 0)) uptime = datetime.timedelta(seconds=int(time.time()-start_time)) cpu_time_float = float(main_status.get('cpu_time', 0)) @@ -499,6 +516,7 @@ def infoDict(username, state, machine): 'NIC_INFO', ('uptime', 'uptime'), ('cputime', 'CPU usage'), + ('host', 'Hosted on'), ('memory', 'RAM'), 'DISK_INFO', ('state', 'state (xen format)'), @@ -566,18 +584,29 @@ 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") @@ -589,6 +618,7 @@ mapping = dict(list=listVms, create=create, help=helpHandler, unauth=unauthFront, + overlord=overlord, errortest=throwError) def printHeaders(headers): @@ -600,13 +630,13 @@ def printHeaders(headers): def send_error_mail(subject, body): import subprocess - to = 'xvm@mit.edu' + to = config.web.errormail mail = """To: %s -From: root@xvm.mit.edu +From: root@%s Subject: %s %s -""" % (to, subject, body) +""" % (to, config.web.hostname, subject, body) p = subprocess.Popen(['/usr/sbin/sendmail', to], stdin=subprocess.PIPE) p.stdin.write(mail) p.stdin.close() @@ -625,12 +655,15 @@ def show_error(op, username, fields, err, emsg, traceback): def getUser(environ): """Return the current user based on the SSL environment variables""" - email = environ.get('SSL_CLIENT_S_DN_Email', None) - if email is None: - return None - if not email.endswith('@MIT.EDU'): - return None - return email[:-8] + 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): @@ -641,28 +674,23 @@ 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) @@ -671,14 +699,12 @@ class App: headers.update(new_headers) e = revertStandardError() if e: - if isinstance(output, basestring): - sys.stderr = StringIO() - x = str(output) - print >> sys.stderr, x - print >> sys.stderr, 'XXX' - print >> sys.stderr, e - raise Exception() - output.addError(e) + if hasattr(output, 'addError'): + output.addError(e) + else: + # This only happens on redirects, so it'd be a pain to get + # the message to the user. Maybe in the response is useful. + output = output + '\n\nstderr:\n' + e output_string = str(output) checkpoint.checkpoint('output as a string') except Exception, err: @@ -705,7 +731,7 @@ class App: yield '
%s
' % cgi.escape(str(checkpoint)) def constructor(): - connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen') + connect() return App def main():