import cgi
import datetime
import hmac
-import os
import sha
import simplejson
import sys
import time
+import urllib
from StringIO import StringIO
def revertStandardError():
"""Move stderr to stdout, and return the contents of the old stderr."""
errio = sys.stderr
if not isinstance(errio, StringIO):
- return None
+ return ''
sys.stderr = sys.stdout
errio.seek(0)
return errio.read()
if __name__ == '__main__':
import atexit
atexit.register(printError)
- sys.stderr = StringIO()
-
-sys.path.append('/home/ecprice/.local/lib/python2.5/site-packages')
import templates
from Cheetah.Template import Template
-from sipb_xen_database import Machine, CDROM, ctx, connect, MachineAccess
+import sipb_xen_database
+from sipb_xen_database import Machine, CDROM, ctx, connect, MachineAccess, Type, Autoinstall
import validation
-from webcommon import InvalidInput, CodeError, g
+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):
checkpoint = Checkpoint()
+def jquote(string):
+ return "'" + string.replace('\\', '\\\\').replace("'", "\\'").replace('\n', '\\n') + "'"
def helppopup(subj):
"""Return HTML code for a (?) link to a specified help topic"""
- return ('<span class="helplink"><a href="help?subject=' + subj +
- '&simple=true" target="_blank" ' +
- 'onclick="return helppopup(\'' + subj + '\')">(?)</a></span>')
+ return ('<span class="helplink"><a href="help?' +
+ cgi.escape(urllib.urlencode(dict(subject=subj, simple='true')))
+ +'" target="_blank" ' +
+ 'onclick="return helppopup(' + cgi.escape(jquote(subj)) + ')">(?)</a></span>')
def makeErrorPre(old, addition):
if addition is None:
else:
return '<p>STDERR:</p><pre>' + str(addition) + '</pre>'
+Template.sipb_xen_database = sipb_xen_database
Template.helppopup = staticmethod(helppopup)
Template.err = None
memory = 256
disk = 4.0
cdrom = ''
+ autoinstall = ''
name = ''
- vmtype = 'hvm'
+ description = ''
+ type = 'linux-hvm'
+
def __init__(self, max_memory=None, max_disk=None, **kws):
if max_memory is not None:
self.memory = min(self.memory, max_memory)
DEFAULT_HEADERS = {'Content-Type': 'text/html'}
-def error(op, user, fields, err, emsg):
- """Print an error page when a CodeError occurs"""
- d = dict(op=op, user=user, errorMessage=str(err),
- stderr=emsg)
- return templates.error(searchList=[d])
-
-def invalidInput(op, user, fields, err, emsg):
+def invalidInput(op, username, fields, err, emsg):
"""Print an error page when an InvalidInput exception occurs"""
- d = dict(op=op, user=user, err_field=err.err_field,
+ d = dict(op=op, user=username, err_field=err.err_field,
err_value=str(err.err_value), stderr=emsg,
errorMessage=str(err))
return templates.invalid(searchList=[d])
return 'location' in d
return False
-def parseCreate(user, fields):
- name = fields.getfirst('name')
- if not validation.validMachineName(name):
- raise InvalidInput('name', name, 'You must provide a machine name.')
- name = name.lower()
-
- if Machine.get_by(name=name):
- raise InvalidInput('name', name,
- "Name already exists.")
-
- owner = validation.testOwner(user, fields.getfirst('owner'))
-
- memory = fields.getfirst('memory')
- memory = validation.validMemory(owner, memory, on=True)
-
- disk_size = fields.getfirst('disk')
- disk_size = validation.validDisk(owner, disk_size)
-
- vm_type = fields.getfirst('vmtype')
- if vm_type not in ('hvm', 'paravm'):
- raise CodeError("Invalid vm type '%s'" % vm_type)
- is_hvm = (vm_type == 'hvm')
-
- cdrom = fields.getfirst('cdrom')
- if cdrom is not None and not CDROM.get(cdrom):
- raise CodeError("Invalid cdrom type '%s'" % cdrom)
-
- clone_from = fields.getfirst('clone_from')
- if clone_from and clone_from != 'ice3':
- raise CodeError("Invalid clone image '%s'" % clone_from)
-
- return dict(contact=user, name=name, memory=memory, disk_size=disk_size,
- owner=owner, is_hvm=is_hvm, cdrom=cdrom, clone_from=clone_from)
-
-def create(user, fields):
+def parseCreate(username, state, fields):
+ 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),
+ autoinstall=getattr(validate, 'autoinstall', None))
+
+def create(username, state, path, fields):
"""Handler for create requests."""
try:
- parsed_fields = parseCreate(user, fields)
- machine = controls.createVm(**parsed_fields)
+ parsed_fields = parseCreate(username, state, fields)
+ machine = controls.createVm(username, state, **parsed_fields)
except InvalidInput, err:
pass
else:
err = None
- g.clear() #Changed global state
- d = getListDict(user)
+ state.clear() #Changed global state
+ d = getListDict(username, state)
d['err'] = err
if err:
for field in fields.keys():
return templates.list(searchList=[d])
-def getListDict(user):
- machines = g.machines
+def getListDict(username, state):
+ """Gets the list of local variables used by list.tmpl."""
+ checkpoint.checkpoint('Starting')
+ machines = state.machines
checkpoint.checkpoint('Got my machines')
on = {}
has_vnc = {}
- on = g.uptimes
+ xmlist = state.xmlist
checkpoint.checkpoint('Got uptimes')
+ can_clone = 'ice3' not in state.xmlist_raw
for m in machines:
- m.uptime = g.uptimes.get(m)
- if not on[m]:
+ if m not in xmlist:
has_vnc[m] = 'Off'
- elif m.type.hvm:
- has_vnc[m] = True
+ m.uptime = None
else:
- has_vnc[m] = "ParaVM"+helppopup("paravm_console")
- max_memory = validation.maxMemory(user)
- max_disk = validation.maxDisk(user)
+ m.uptime = xmlist[m]['uptime']
+ if xmlist[m]['console']:
+ has_vnc[m] = True
+ elif m.type.hvm:
+ has_vnc[m] = "WTF?"
+ else:
+ has_vnc[m] = "ParaVM"+helppopup("ParaVM Console")
+ max_memory = validation.maxMemory(username, state)
+ max_disk = validation.maxDisk(username)
checkpoint.checkpoint('Got max mem/disk')
defaults = Defaults(max_memory=max_memory,
max_disk=max_disk,
- owner=user,
+ owner=username,
cdrom='gutsy-i386')
checkpoint.checkpoint('Got defaults')
- d = dict(user=user,
- cant_add_vm=validation.cantAddVm(user),
+ def sortkey(machine):
+ return (machine.owner != username, machine.owner, machine.name)
+ machines = sorted(machines, key=sortkey)
+ d = dict(user=username,
+ cant_add_vm=validation.cantAddVm(username, state),
max_memory=max_memory,
max_disk=max_disk,
defaults=defaults,
machines=machines,
has_vnc=has_vnc,
- uptimes=g.uptimes,
- cdroms=CDROM.select())
+ can_clone=can_clone)
return d
-def listVms(user, fields):
+def listVms(username, state, path, fields):
"""Handler for list requests."""
checkpoint.checkpoint('Getting list dict')
- d = getListDict(user)
+ d = getListDict(username, state)
checkpoint.checkpoint('Got list dict')
return templates.list(searchList=[d])
-
-def vnc(user, fields):
+
+def vnc(username, state, path, fields):
"""VNC applet page.
Note that due to same-domain restrictions, the applet connects to
You might want iptables like:
-t nat -A PREROUTING -s ! 18.181.0.60 -i eth1 -p tcp -m tcp \
- --dport 10003 -j DNAT --to-destination 18.181.0.60:10003
+ --dport 10003 -j DNAT --to-destination 18.181.0.60:10003
-t nat -A POSTROUTING -d 18.181.0.60 -o eth1 -p tcp -m tcp \
- --dport 10003 -j SNAT --to-source 18.187.7.142
+ --dport 10003 -j SNAT --to-source 18.187.7.142
-A FORWARD -d 18.181.0.60 -i eth1 -o eth1 -p tcp -m tcp \
--dport 10003 -j ACCEPT
Remember to enable iptables!
echo 1 > /proc/sys/net/ipv4/ip_forward
"""
- machine = validation.testMachineId(user, fields.getfirst('machine_id'))
-
+ machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine
+
TOKEN_KEY = "0M6W0U1IXexThi5idy8mnkqPKEq1LtEnlK/pZSn0cDrN"
data = {}
- data["user"] = user
+ data["user"] = username
data["machine"] = machine.name
data["expires"] = time.time()+(5*60)
pickled_data = cPickle.dumps(data)
token = {'data': pickled_data, 'digest': m.digest()}
token = cPickle.dumps(token)
token = base64.urlsafe_b64encode(token)
-
+
status = controls.statusInfo(machine)
has_vnc = hasVnc(status)
-
- d = dict(user=user,
+
+ d = dict(user=username,
on=status,
has_vnc=has_vnc,
machine=machine,
- hostname=os.environ.get('SERVER_NAME', 'localhost'),
+ hostname=state.environ.get('SERVER_NAME', 'localhost'),
authtoken=token)
return templates.vnc(searchList=[d])
def getHostname(nic):
+ """Find the hostname associated with a NIC.
+
+ XXX this should be merged with the similar logic in DNS and DHCP.
+ """
if nic.hostname and '.' in nic.hostname:
return nic.hostname
elif nic.machine:
- return nic.machine.name + '.servers.csail.mit.edu'
+ return nic.machine.name + '.xvm.mit.edu'
else:
return None
disk_fields = []
for disk in machine.disks:
name = disk.guest_device_name
- disk_fields.extend([(x % name, y % name) for x, y in
+ disk_fields.extend([(x % name, y % name) for x, y in
disk_fields_template])
data_dict['%s_size' % name] = "%0.1f GiB" % (disk.size / 1024.)
return disk_fields
-def command(user, fields):
+def command(username, state, path, fields):
"""Handler for running commands like boot and delete on a VM."""
back = fields.getfirst('back')
try:
- d = controls.commandResult(user, fields)
+ d = controls.commandResult(username, state, fields)
if d['command'] == 'Delete VM':
back = 'list'
except InvalidInput, err:
if not back:
raise
- #print >> sys.stderr, err
+ print >> sys.stderr, err
result = err
else:
result = 'Success!'
if not back:
return templates.command(searchList=[d])
if back == 'list':
- g.clear() #Changed global state
- d = getListDict(user)
+ state.clear() #Changed global state
+ d = getListDict(username, state)
d['result'] = result
return templates.list(searchList=[d])
elif back == 'info':
- machine = validation.testMachineId(user, fields.getfirst('machine_id'))
- return ({'Status': '302',
- 'Location': '/info?machine_id=%d' % machine.machine_id},
+ 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},
"You shouldn't see this message.")
else:
raise InvalidInput('back', back, 'Not a known back page.')
-def modifyDict(user, fields):
+def modifyDict(username, state, fields):
+ """Modify a machine as specified by CGI arguments.
+
+ Return a list of local variables for modify.tmpl.
+ """
olddisk = {}
transaction = ctx.current.create_transaction()
try:
- machine = validation.testMachineId(user, fields.getfirst('machine_id'))
- owner = validation.testOwner(user, fields.getfirst('owner'), machine)
- admin = validation.testAdmin(user, fields.getfirst('administrator'),
- machine)
- contact = validation.testContact(user, fields.getfirst('contact'),
- machine)
- name = validation.testName(user, fields.getfirst('name'), machine)
+ kws = dict([(kw, fields.getfirst(kw)) for kw in 'machine_id owner admin contact name description memory vmtype disksize'.split()])
+ validate = validation.Validate(username, state, **kws)
+ machine = validate.machine
oldname = machine.name
- command = "modify"
-
- memory = fields.getfirst('memory')
- if memory is not None:
- memory = validation.validMemory(user, memory, machine, on=False)
- machine.memory = memory
-
- disksize = validation.testDisk(user, fields.getfirst('disk'))
- if disksize is not None:
- disksize = validation.validDisk(user, disksize, machine)
+
+ if hasattr(validate, 'memory'):
+ machine.memory = validate.memory
+
+ if hasattr(validate, 'vmtype'):
+ machine.type = validate.vmtype
+
+ if hasattr(validate, 'disksize'):
+ disksize = validate.disksize
disk = machine.disks[0]
if disk.size != disksize:
olddisk[disk.guest_device_name] = disksize
disk.size = disksize
ctx.current.save(disk)
-
- if owner is not None:
- machine.owner = owner
- if name is not None:
- machine.name = name
- if admin is not None:
- machine.administrator = admin
- if contact is not None:
- machine.contact = contact
-
+
+ update_acl = False
+ if hasattr(validate, 'owner') and validate.owner != machine.owner:
+ machine.owner = validate.owner
+ update_acl = True
+ if hasattr(validate, 'name'):
+ machine.name = validate.name
+ if hasattr(validate, 'description'):
+ machine.description = validate.description
+ if hasattr(validate, 'admin') and validate.admin != machine.administrator:
+ machine.administrator = validate.admin
+ update_acl = True
+ if hasattr(validate, 'contact'):
+ machine.contact = validate.contact
+
ctx.current.save(machine)
+ if update_acl:
+ print >> sys.stderr, machine, machine.administrator
+ cache_acls.refreshMachine(machine)
transaction.commit()
except:
transaction.rollback()
raise
for diskname in olddisk:
controls.resizeDisk(oldname, diskname, str(olddisk[diskname]))
- if name is not None:
- controls.renameMachine(machine, oldname, name)
- return dict(user=user,
- command=command,
+ if hasattr(validate, 'name'):
+ controls.renameMachine(machine, oldname, validate.name)
+ return dict(user=username,
+ command="modify",
machine=machine)
-
-def modify(user, fields):
+
+def modify(username, state, path, fields):
"""Handler for modifying attributes of a machine."""
try:
- modify_dict = modifyDict(user, fields)
+ modify_dict = modifyDict(username, state, fields)
except InvalidInput, err:
result = None
- machine = validation.testMachineId(user, fields.getfirst('machine_id'))
+ machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine
else:
machine = modify_dict['machine']
result = 'Success!'
err = None
- info_dict = infoDict(user, machine)
+ info_dict = infoDict(username, state, machine)
info_dict['err'] = err
if err:
for field in fields.keys():
setattr(info_dict['defaults'], field, fields.getfirst(field))
info_dict['result'] = result
return templates.info(searchList=[info_dict])
-
-def helpHandler(user, fields):
+
+def helpHandler(username, state, path, fields):
"""Handler for help messages."""
simple = fields.getfirst('simple')
subjects = fields.getlist('subject')
-
- help_mapping = dict(paravm_console="""
-ParaVM machines do not support console access over VNC. To access
-these machines, you either need to boot with a liveCD and ssh in or
-hope that the sipb-xen maintainers add support for serial consoles.""",
- hvm_paravm="""
+
+ 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.""",
+ 'HVM/ParaVM': """
HVM machines use the virtualization features of the processor, while
ParaVM machines use Xen's emulation of virtualization features. You
want an HVM virtualized machine.""",
- cpu_weight="""
+ 'CPU Weight': """
Don't ask us! We're as mystified as you are.""",
- owner="""
+ 'Owner': """
The owner field is used to determine <a
-href="help?subject=quotas">quotas</a>. It must be the name of a
+href="help?subject=Quotas">quotas</a>. It must be the name of a
locker that you are an AFS administrator of. In particular, you or an
AFS group you are a member of must have AFS rlidwka bits on the
-locker. You can check see who administers the LOCKER locker using the
-command 'fs la /mit/LOCKER' on Athena.) See also <a
-href="help?subject=administrator">administrator</a>.""",
- administrator="""
+locker. You can check who administers the LOCKER locker using the
+commands 'attach LOCKER; fs la /mit/LOCKER' on Athena.) See also <a
+href="help?subject=Administrator">administrator</a>.""",
+ 'Administrator': """
The administrator field determines who can access the console and
power on and off the machine. This can be either a user or a moira
group.""",
- quotas="""
+ 'Quotas': """
Quotas are determined on a per-locker basis. Each locker may have a
maximum of 512 megabytes of active ram, 50 gigabytes of disk, and 4
active machines.""",
- console="""
+ 'Console': """
<strong>Framebuffer:</strong> At a Linux boot prompt in your VM, try
setting <tt>fb=false</tt> to disable the framebuffer. If you don't,
your machine will run just fine, but the applet's display of the
console will suffer artifacts.
"""
- )
-
+ }
+
if not subjects:
subjects = sorted(help_mapping.keys())
-
- d = dict(user=user,
+
+ d = dict(user=username,
simple=simple,
subjects=subjects,
mapping=help_mapping)
-
+
return templates.help(searchList=[d])
-
-def badOperation(u, e):
- raise CodeError("Unknown operation")
-def infoDict(user, machine):
+def badOperation(u, s, p, e):
+ """Function called when accessing an unknown URI."""
+ return ({'Status': '404 Not Found'}, 'Invalid operation.')
+
+def infoDict(username, state, machine):
+ """Get the variables used by info.tmpl."""
status = controls.statusInfo(machine)
checkpoint.checkpoint('Getting status info')
has_vnc = hasVnc(status)
display_fields = """name uptime memory state cpu_weight on_reboot
on_poweroff on_crash on_xend_start on_xend_stop bootloader""".split()
display_fields = [('name', 'Name'),
+ ('description', 'Description'),
('owner', 'Owner'),
('administrator', 'Administrator'),
('contact', 'Contact'),
('memory', 'RAM'),
'DISK_INFO',
('state', 'state (xen format)'),
- ('cpu_weight', 'CPU weight'+helppopup('cpu_weight')),
+ ('cpu_weight', 'CPU weight'+helppopup('CPU Weight')),
('on_reboot', 'Action on VM reboot'),
('on_poweroff', 'Action on VM poweroff'),
('on_crash', 'Action on VM crash'),
fields = []
machine_info = {}
machine_info['name'] = machine.name
+ machine_info['description'] = machine.description
machine_info['type'] = machine.type.hvm and 'HVM' or 'ParaVM'
machine_info['owner'] = machine.owner
machine_info['administrator'] = machine.administrator
nic_fields = getNicInfo(machine_info, machine)
nic_point = display_fields.index('NIC_INFO')
- display_fields = (display_fields[:nic_point] + nic_fields +
+ display_fields = (display_fields[:nic_point] + nic_fields +
display_fields[nic_point+1:])
disk_fields = getDiskInfo(machine_info, machine)
disk_point = display_fields.index('DISK_INFO')
- display_fields = (display_fields[:disk_point] + disk_fields +
+ display_fields = (display_fields[:disk_point] + disk_fields +
display_fields[disk_point+1:])
-
+
main_status['memory'] += ' MiB'
for field, disp in display_fields:
if field in ('uptime', 'cputime') and locals()[field] is not None:
checkpoint.checkpoint('Got fields')
- max_mem = validation.maxMemory(user, machine, False)
+ max_mem = validation.maxMemory(machine.owner, state, machine, False)
checkpoint.checkpoint('Got mem')
- max_disk = validation.maxDisk(user, machine)
+ max_disk = validation.maxDisk(machine.owner, machine)
defaults = Defaults()
- for name in 'machine_id name administrator owner memory contact'.split():
+ for name in 'machine_id name description administrator owner memory contact'.split():
setattr(defaults, name, getattr(machine, name))
+ defaults.type = machine.type.type_id
defaults.disk = "%0.2f" % (machine.disks[0].size/1024.)
checkpoint.checkpoint('Got defaults')
- d = dict(user=user,
- cdroms=CDROM.select(),
+ d = dict(user=username,
on=status is not None,
machine=machine,
defaults=defaults,
ram=machine.memory,
max_mem=max_mem,
max_disk=max_disk,
- owner_help=helppopup("owner"),
+ owner_help=helppopup("Owner"),
fields = fields)
return d
-def info(user, fields):
+def info(username, state, path, fields):
"""Handler for info on a single VM."""
- machine = validation.testMachineId(user, fields.getfirst('machine_id'))
- d = infoDict(user, machine)
+ 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, _3, fields):
+ """Information for unauth'd users."""
+ return templates.unauth(searchList=[{'simple' : True}])
+
+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")
+
mapping = dict(list=listVms,
vnc=vnc,
command=command,
modify=modify,
info=info,
create=create,
- help=helpHandler)
+ help=helpHandler,
+ unauth=unauthFront,
+ overlord=overlord,
+ errortest=throwError)
def printHeaders(headers):
+ """Print a dictionary as HTTP headers."""
for key, value in headers.iteritems():
print '%s: %s' % (key, value)
print
+def send_error_mail(subject, body):
+ import subprocess
+
+ to = 'xvm@mit.edu'
+ mail = """To: %s
+From: root@xvm.mit.edu
+Subject: %s
+
+%s
+""" % (to, subject, body)
+ p = subprocess.Popen(['/usr/sbin/sendmail', to], stdin=subprocess.PIPE)
+ p.stdin.write(mail)
+ p.stdin.close()
+ p.wait()
+
+def show_error(op, username, fields, err, emsg, traceback):
+ """Print an error page when an exception occurs"""
+ d = dict(op=op, user=username, fields=fields,
+ errorMessage=str(err), stderr=emsg, traceback=traceback)
+ details = templates.error_raw(searchList=[d])
+ if username not in ('price', 'ecprice', 'andersk'): #add yourself at will
+ send_error_mail('xvm error on %s for %s: %s' % (op, username, err),
+ details)
+ d['details'] = details
+ return templates.error(searchList=[d])
-def getUser():
+def getUser(environ):
"""Return the current user based on the SSL environment variables"""
- username = os.environ['SSL_CLIENT_S_DN_Email'].split("@")[0]
- return username
+ return environ.get('REMOTE_USER', None)
-def main(operation, user, fields):
- start_time = time.time()
- fun = mapping.get(operation, badOperation)
-
- if fun not in (helpHandler, ):
- connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen')
- try:
- checkpoint.checkpoint('Before')
- output = fun(u, fields)
- checkpoint.checkpoint('After')
-
- headers = dict(DEFAULT_HEADERS)
- if isinstance(output, tuple):
- new_headers, output = output
- headers.update(new_headers)
- e = revertStandardError()
- if e:
- output.addError(e)
- printHeaders(headers)
- output_string = str(output)
- checkpoint.checkpoint('output as a string')
- print output_string
- print '<!-- <pre>%s</pre> -->' % checkpoint
- except Exception, err:
- if not fields.has_key('js'):
- if isinstance(err, CodeError):
- print 'Content-Type: text/html\n'
- e = revertStandardError()
- print error(operation, u, fields, err, e)
- sys.exit(1)
- if isinstance(err, InvalidInput):
- print 'Content-Type: text/html\n'
- e = revertStandardError()
- print invalidInput(operation, u, fields, err, e)
- sys.exit(1)
- print 'Content-Type: text/plain\n'
- print 'Uh-oh! We experienced an error.'
- print 'Please email sipb-xen@mit.edu with the contents of this page.'
- print '----'
- e = revertStandardError()
- print e
- print '----'
- raise
-
-if __name__ == '__main__':
- fields = cgi.FieldStorage()
- u = getUser()
- g.user = u
- operation = os.environ.get('PATH_INFO', '')
- if not operation:
- print "Status: 301 Moved Permanently"
- print 'Location: ' + os.environ['SCRIPT_NAME']+'/\n'
- sys.exit(0)
-
- if operation.startswith('/'):
- operation = operation[1:]
+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
+ self.start = start_response
+
+ self.username = getUser(environ)
+ 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', './')])
+ return
+ if self.username is None:
+ operation = 'unauth'
+
+ try:
+ checkpoint.checkpoint('Before')
+ output = handler(self.username, self.state, operation, fields)
+ checkpoint.checkpoint('After')
+
+ headers = dict(DEFAULT_HEADERS)
+ if isinstance(output, tuple):
+ new_headers, output = output
+ 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)
+ output_string = str(output)
+ checkpoint.checkpoint('output as a string')
+ except Exception, err:
+ if not fields.has_key('js'):
+ if isinstance(err, InvalidInput):
+ self.start('200 OK', [('Content-Type', 'text/html')])
+ e = revertStandardError()
+ yield str(invalidInput(operation, self.username, fields,
+ err, e))
+ return
+ import traceback
+ self.start('500 Internal Server Error',
+ [('Content-Type', 'text/html')])
+ e = revertStandardError()
+ s = show_error(operation, self.username, fields,
+ err, e, traceback.format_exc())
+ yield str(s)
+ return
+ status = headers.setdefault('Status', '200 OK')
+ del headers['Status']
+ self.start(status, headers.items())
+ yield output_string
+ if fields.has_key('timedebug'):
+ yield '<pre>%s</pre>' % cgi.escape(str(checkpoint))
+
+def constructor():
+ connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen')
+ return App
+
+def main():
+ from flup.server.fcgi_fork import WSGIServer
+ WSGIServer(constructor()).run()
- if os.getenv("SIPB_XEN_PROFILE"):
- import profile
- profile.run('main(operation, u, fields)', 'log-'+operation)
- else:
- main(operation, u, fields)
+if __name__ == '__main__':
+ main()
projects / invirt/packages/invirt-web.git / blobdiff