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__init__.py
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349 lines (306 loc) · 12.3 KB
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#coding=utf-8
from uliweb import settings, models, request, functions, UliwebError
from uliweb.orm import ModelNotFound
from json import dumps as json_dumps
import logging
log = logging.getLogger('apijson')
class ApijsonTable(object):
def __init__(self, model_name, request_tag=None, role=None, tableui_name=None):
self.model_name = model_name
self.request_tag = request_tag or self.model_name
self.role = role
self.tableui_name = tableui_name or self.model_name
self._get_tableui()
self._apply_auto()
def _get_tableui(self):
self.tableui = settings.APIJSON_TABLE_UI.get(self.tableui_name, {})
if not self.tableui:
log.warn("cannot find setting for {} in settings.APIJSON_TABLE_UI".format(self.tableui_name))
def _apply_auto(self):
editable = self.tableui.get("editable", False)
if editable == "auto":
editable = False
POST = settings.APIJSON_MODELS.get(self.model_name, {}).get("POST")
if POST:
roles = POST["roles"]
if roles:
editable = self.role in roles
self.tableui["editable"] = editable
def to_dict(self):
return dict(model_name=self.model_name,
request_tag=self.request_tag,
role=self.role,
tableui_name=self.tableui_name,
tableui=self.tableui)
def get_apijson_tables():
def iter_table():
apison_table_ui = dict(
settings.APIJSON_TABLE_UI.iteritems())
for tableui_name in apison_table_ui:
tableui = apison_table_ui[tableui_name]
model_name = tableui.get("@model_name") or tableui_name
request_tag = model_name
role = None
yield(ApijsonTable(model_name=model_name, request_tag=request_tag, role=role, tableui_name=tableui_name))
return list(iter_table())
def get_apijson_table(*args, **kwargs):
return ApijsonTable(*args, **kwargs)
class ApiJsonModelQuery(object):
def __init__(self,name,params,parent,key):
self.name = name
self.params = params
self.parent = parent
self.key = key
self.query_params = self.parent.request_data[key]
try:
self.model = getattr(models,name)
except ModelNotFound as e:
log.error("try to find model '%s' but not found: '%s'"%(name,e))
raise UliwebError("model '%s' not found"%(name))
self.setting = settings.APIJSON_MODELS.get(name,{})
self.secret_fields = self.setting.get("secret_fields")
self.column = params.get("@column")
if self.column:
self.column_set = set(self.column.split(","))
if self.secret_fields:
self.column_set -= set(self.secret_fields)
self.column_set &= set(self.model.columns.keys())
else:
self.column_set = None
self.permission_check_ok = False
def _check_GET_permission(self):
GET = self.setting.get("GET")
if not GET:
raise UliwebError("'%s' not accessible by apijson"%(self.name))
roles = GET.get("roles")
params_role = self.params.get("@role")
user = getattr(request, "user", None)
if roles:
if not params_role:
if user:
params_role = "LOGIN"
else:
params_role = "UNKNOWN"
elif params_role != "UNKNOWN":
if not user:
raise UliwebError("no login user for role '%s'" % (params_role))
if params_role not in roles:
raise UliwebError("'%s' not accessible by role '%s'" % (self.name, params_role))
if params_role == "UNKNOWN":
self.permission_check_ok = True
elif functions.has_role(user, params_role):
self.permission_check_ok = True
else:
raise UliwebError("user doesn't have role '%s'" % (params_role))
if not self.permission_check_ok:
perms = GET.get("permissions")
if perms:
if params_role:
role, msg = functions.has_permission_as_role(user, params_role, *perms)
if role:
self.permission_check_ok = True
else:
role = functions.has_permission(user, *perms)
if role:
role_name = getattr(role, "name")
if role_name:
self.permission_check_ok = True
params_role = role_name
if not self.permission_check_ok:
raise UliwebError("no permission")
self.params_role = params_role
def _get_array_params(self):
query_count = self.query_params.get("@count")
if query_count:
try:
query_count = int(query_count)
except ValueError as e:
log.error("bad param in '%s': '%s'"%(query_count,self.query_params))
raise UliwebError("@count should be an int, but get '%s'"%(query_count))
self.query_count = query_count
query_page = self.query_params.get("@page")
if query_page:
#@page begin from 0
try:
query_page = int(query_page)
except ValueError as e:
log.error("bad param in '%s': '%s'"%(query_page,self.query_params))
raise UliwebError("@page should be an int, but get '%s'"%(query_page))
if query_page<0:
raise UliwebError("page should >0, but get '%s'"%(query_page))
self.query_page = query_page
#https://github.com/TommyLemon/APIJSON/blob/master/Document.md#32-%E5%8A%9F%E8%83%BD%E7%AC%A6
query_type = self.query_params.get("@query",0)
if query_type not in [0,1,2]:
raise UliwebError("bad param 'query': %s"%(query_type))
self.query_type = query_type
#order not in query params but in model params
self.order = self.params.get("@order")
def _filter_owner(self,q):
owner_filtered = False
if hasattr(self.model,"owner_condition"):
q = q.filter(self.model.owner_condition(request.user.id))
owner_filtered = True
if not owner_filtered:
user_id_field = self.setting.get("user_id_field")
if user_id_field:
q = q.filter(getattr(self.model.c,user_id_field)==request.user.id)
owner_filtered = True
if not owner_filtered:
raise UliwebError("'%s' cannot filter with owner"%(self.name))
return q
def _get_array_q(self,params):
q = self.model.all()
if self.params_role == "OWNER":
q = self._filter_owner(q)
#@expr
model_expr = params.get("@expr")
if model_expr!=None:
c = self.parent._expr(self.model,params,model_expr)
q = q.filter(c)
else:
for n in params:
if n[0]!="@":
c = self.parent._get_filter_condition(self.model,params,n)
q = q.filter(c)
return q
def _get_info(self,i,as_dict_child=False):
if (not i):
return {}
d = i.to_dict()
if self.secret_fields:
for k in self.secret_fields:
del d[k]
if self.column_set:
keys = list(d.keys())
for k in keys:
if k not in self.column_set:
del d[k]
if as_dict_child:
resultd = {}
resultd[self.name] = d
return resultd
else:
return d
def query_array(self):
self._check_GET_permission()
self._get_array_params()
params = self.params.copy()
#update reference
ref_fields = []
refs = {}
for n in params:
if n[-1]=="@":
ref_fields.append(n)
col_name = n[:-1]
path = params[n]
refs[col_name] = self.parent._ref_get(path)
if ref_fields:
for i in ref_fields:
del params[i]
params.update(refs)
q = self._get_array_q(params)
if self.query_type in [1,2]:
self.parent.vars["/%s/total"%(self.key)] = q.count()
if self.query_type in [0,2]:
if self.query_count:
if self.query_page:
q = q.offset(self.query_page*self.query_count)
q = q.limit(self.query_count)
if self.order:
for k in self.order.split(","):
if k[-1] == "+":
sort_key = k[:-1]
sort_order = "asc"
elif k[-1] == "-":
sort_key = k[:-1]
sort_order = "desc"
else:
sort_key = k
sort_order = "asc"
try:
column = getattr(self.model.c,sort_key)
except AttributeError as e:
raise UliwebError("'%s' doesn't have column '%s'"%(self.name,sort_key))
q = q.order_by(getattr(column,sort_order)())
l = [self._get_info(i,True) for i in q]
self.parent.rdict[self.key] = l
def associated_query_array(self):
self._check_GET_permission()
self._get_array_params()
for item in self.parent.rdict[self.key]:
params = self.params.copy()
#update reference
ref_fields = []
refs = {}
for n in params:
if n[-1]=="@":
ref_fields.append(n)
col_name = n[:-1]
path = params[n]
refs[col_name] = self.parent._ref_get(path,context=item)
if ref_fields:
for i in ref_fields:
del params[i]
params.update(refs)
q = self._get_array_q(params)
item[self.name] = self._get_info(q.one())
def is_obj_owner(user, obj, user_id_field):
if user and user_id_field:
return obj.to_dict().get(user_id_field)==user.id
return False
def has_obj_role(user, obj, user_id_field, as_role, *roles):
from uliweb import functions
if as_role:
if as_role not in roles:
return False, "role '%s' has no permission to access the data"%(as_role)
if not functions.has_role(user, as_role):
return False, "user has no role '%s'"%(as_role)
if as_role == "OWNER":
if not is_obj_owner(user, obj, user_id_field):
return False, "user is not the owner of data"
return True, None
else:
for role in roles:
if functions.has_role(user, role):
if isinstance(role,str):
role_name = role
elif hasattr(role, "name"):
role_name = role.name
else:
continue
if role_name == "OWNER":
if is_obj_owner(user, obj, user_id_field):
return True, None
else:
continue
else:
return True, None
return False, "no role to access the data"
def has_obj_permission(user, obj, user_id_field, *perms):
from uliweb import functions, models
Role = models.role
Perm = models.permission
for name in perms:
perm = Perm.get(Perm.c.name == name)
if not perm:
continue
has, msg = functions.has_obj_role(user, obj, user_id_field, None, *list(perm.perm_roles.with_relation().all()))
if has:
return has, None
return False, "no permission"
def has_permission_as_role(user, as_role, *perms):
from uliweb import functions, models
Role = models.role
Perm = models.permission
flag = functions.has_role(user, as_role)
if not flag:
return False, "user has no role '%s'"%(as_role)
for name in perms:
perm = Perm.get(Perm.c.name==name)
if not perm:
continue
for role in perm.perm_roles.with_relation().all():
if role.name == as_role:
return role, None
return False, "no permission"