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satnogs-network/network/base/perms.py

134 lines
4.4 KiB
Python

"""SatNOGS Network base permissions"""
from django.core.exceptions import ObjectDoesNotExist
class UserNoPermissionError(Exception):
"""Error when user has not persmission"""
pass
def schedule_perms(user):
"""
This context flag will determine if user can schedule an observation.
That includes station owners, moderators, admins.
see: https://wiki.satnogs.org/Operation#Network_permissions_matrix
"""
if user.is_authenticated():
# User has online station (status=2)
if user.ground_stations.filter(status=2).exists():
return True
# User has testing station (status=1)
if user.ground_stations.filter(status=1).exists():
return True
# User has special permissions
if user.groups.filter(name='Moderators').exists():
return True
if user.is_superuser:
return True
return False
def schedule_station_perms(user, station):
"""
This context flag will determine if user can schedule an observation.
That includes station owners, moderators, admins.
see: https://wiki.satnogs.org/Operation#Network_permissions_matrix
"""
if user.is_authenticated():
# User has online station (status=2) and station is online
try:
if user.ground_stations.filter(status=2).exists() and station.status == 2:
return True
except (AttributeError, ObjectDoesNotExist):
pass
# If the station is testing (status=1) and user is its owner
try:
if station.status == 1 and station.owner == user:
return True
except (AttributeError, ObjectDoesNotExist):
pass
# User has special permissions
if user.groups.filter(name='Moderators').exists():
return True
if user.is_superuser:
return True
return False
def check_schedule_perms_per_station(user, station_list):
"""Checks if user has permissions to schedule on stations"""
stations_without_permissions = [
int(s.id) for s in station_list if not schedule_station_perms(user, s)
]
if stations_without_permissions:
if len(stations_without_permissions) == 1:
raise UserNoPermissionError(
'No permission to schedule observations on station: {0}'.format(
stations_without_permissions[0]
)
)
else:
raise UserNoPermissionError(
'No permission to schedule observations on stations: {0}'.
format(stations_without_permissions)
)
def delete_perms(user, observation):
"""
This context flag will determine if a delete button appears for the observation.
That includes observer, station owner involved, moderators, admins.
see: https://wiki.satnogs.org/Operation#Network_permissions_matrix
"""
if not observation.is_started and user.is_authenticated():
# User owns the observation
try:
if observation.author == user:
return True
except AttributeError:
pass
# User owns the station
try:
if observation.ground_station.owner == user:
return True
except (AttributeError, ObjectDoesNotExist):
pass
# User has special permissions
if user.groups.filter(name='Moderators').exists():
return True
if user.is_superuser:
return True
return False
def vet_perms(user, observation):
"""
This context flag will determine if vet buttons appears for the observation.
That includes observer, station owner involved, moderators, admins.
see: https://wiki.satnogs.org/Operation#Network_permissions_matrix
"""
if user.is_authenticated():
# User has online station (status=2)
if user.ground_stations.filter(status=2).exists():
return True
# User owns the observation
try:
if observation.author == user:
return True
except AttributeError:
pass
# User owns the station
try:
if observation.ground_station.owner == user:
return True
except AttributeError:
pass
# User has special permissions
if user.groups.filter(name='Moderators').exists():
return True
if user.is_superuser:
return True
return False