author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Tue, 27 Jul 2010 09:40:09 +0200 | |
branch | stable |
changeset 6017 | 5f6a60ea8544 |
parent 5896 | 67683b7e591a |
child 6109 | 47d9c0e0f7b7 |
permissions | -rw-r--r-- |
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# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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# |
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# This file is part of CubicWeb. |
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# |
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# CubicWeb is free software: you can redistribute it and/or modify it under the |
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# terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 2.1 of the License, or (at your option) |
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# any later version. |
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# |
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License along |
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# with CubicWeb. If not, see <http://www.gnu.org/licenses/>. |
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"""classes to define schemas for CubicWeb""" |
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__docformat__ = "restructuredtext en" |
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_ = unicode |
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import re |
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merge and add missing import in schema.py
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from os.path import join |
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from logging import getLogger |
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from warnings import warn |
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from logilab.common.decorators import cached, clear_cache, monkeypatch |
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from logilab.common.logging_ext import set_log_methods |
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from logilab.common.deprecation import deprecated, class_moved |
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from logilab.common.graph import get_cycles |
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from logilab.common.compat import any |
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from yams import BadSchemaDefinition, buildobjs as ybo |
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from yams.schema import Schema, ERSchema, EntitySchema, RelationSchema, \ |
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RelationDefinitionSchema, PermissionMixIn, role_name |
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from yams.constraints import BaseConstraint, FormatConstraint |
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from yams.reader import (CONSTRAINTS, PyFileReader, SchemaLoader, |
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obsolete as yobsolete, cleanup_sys_modules) |
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from rql import parse, nodes, RQLSyntaxError, TypeResolverException |
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import cubicweb |
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from cubicweb import ETYPE_NAME_MAP, ValidationError, Unauthorized |
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PURE_VIRTUAL_RTYPES = set(('identity', 'has_text',)) |
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VIRTUAL_RTYPES = set(('eid', 'identity', 'has_text',)) |
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# set of meta-relations available for every entity types |
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META_RTYPES = set(( |
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'owned_by', 'created_by', 'is', 'is_instance_of', 'identity', |
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'eid', 'creation_date', 'modification_date', 'has_text', 'cwuri', |
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)) |
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SYSTEM_RTYPES = set(('require_permission', 'custom_workflow', 'in_state', |
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'wf_info_for')) |
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# set of entity and relation types used to build the schema |
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SCHEMA_TYPES = set(( |
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'CWEType', 'CWRType', 'CWAttribute', 'CWRelation', |
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'CWConstraint', 'CWConstraintType', 'RQLExpression', |
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'relation_type', 'from_entity', 'to_entity', |
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'constrained_by', 'cstrtype', |
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)) |
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WORKFLOW_TYPES = set(('Transition', 'State', 'TrInfo', 'Workflow', |
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'WorkflowTransition', 'BaseTransition', |
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'SubWorkflowExitPoint')) |
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INTERNAL_TYPES = set(('CWProperty', 'CWPermission', 'CWCache', 'ExternalUri')) |
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_LOGGER = getLogger('cubicweb.schemaloader') |
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# schema entities created from serialized schema have an eid rproperty |
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ybo.ETYPE_PROPERTIES += ('eid',) |
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ybo.RTYPE_PROPERTIES += ('eid',) |
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ybo.RDEF_PROPERTIES += ('eid',) |
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PUB_SYSTEM_ENTITY_PERMS = { |
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'read': ('managers', 'users', 'guests',), |
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'add': ('managers',), |
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'delete': ('managers',), |
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'update': ('managers',), |
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} |
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PUB_SYSTEM_REL_PERMS = { |
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'read': ('managers', 'users', 'guests',), |
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'add': ('managers',), |
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'delete': ('managers',), |
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} |
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PUB_SYSTEM_ATTR_PERMS = { |
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'read': ('managers', 'users', 'guests',), |
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'update': ('managers',), |
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} |
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RO_REL_PERMS = { |
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'read': ('managers', 'users', 'guests',), |
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'add': (), |
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'delete': (), |
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} |
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RO_ATTR_PERMS = { |
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'read': ('managers', 'users', 'guests',), |
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'update': (), |
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} |
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# XXX same algorithm as in reorder_cubes and probably other place, |
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# may probably extract a generic function |
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def order_eschemas(eschemas): |
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"""return entity schemas ordered such that entity types which specializes an |
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other one appears after that one |
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110 |
""" |
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graph = {} |
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112 |
for eschema in eschemas: |
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113 |
if eschema.specializes(): |
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114 |
graph[eschema] = set((eschema.specializes(),)) |
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115 |
else: |
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|
116 |
graph[eschema] = set() |
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|
117 |
cycles = get_cycles(graph) |
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|
118 |
if cycles: |
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|
119 |
cycles = '\n'.join(' -> '.join(cycle) for cycle in cycles) |
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|
120 |
raise Exception('cycles in entity schema specialization: %s' |
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|
121 |
% cycles) |
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122 |
eschemas = [] |
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|
123 |
while graph: |
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|
124 |
# sorted to get predictable results |
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|
125 |
for eschema, deps in sorted(graph.items()): |
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|
126 |
if not deps: |
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|
127 |
eschemas.append(eschema) |
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|
128 |
del graph[eschema] |
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129 |
for deps in graph.itervalues(): |
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130 |
try: |
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131 |
deps.remove(eschema) |
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132 |
except KeyError: |
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133 |
continue |
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134 |
return eschemas |
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|
135 |
|
0 | 136 |
def bw_normalize_etype(etype): |
137 |
if etype in ETYPE_NAME_MAP: |
|
138 |
msg = '%s has been renamed to %s, please update your code' % ( |
|
1451 | 139 |
etype, ETYPE_NAME_MAP[etype]) |
0 | 140 |
warn(msg, DeprecationWarning, stacklevel=4) |
141 |
etype = ETYPE_NAME_MAP[etype] |
|
142 |
return etype |
|
143 |
||
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|
144 |
def display_name(req, key, form='', context=None): |
0 | 145 |
"""return a internationalized string for the key (schema entity or relation |
146 |
name) in a given form |
|
147 |
""" |
|
148 |
assert form in ('', 'plural', 'subject', 'object') |
|
149 |
if form == 'subject': |
|
150 |
form = '' |
|
151 |
if form: |
|
152 |
key = key + '_' + form |
|
153 |
# ensure unicode |
|
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154 |
# .lower() in case no translation are available XXX done whatever a translation is there or not! |
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155 |
if context is not None: |
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|
156 |
return unicode(req.pgettext(context, key)).lower() |
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|
157 |
else: |
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|
158 |
return unicode(req._(key)).lower() |
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|
159 |
|
2788
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R put version info in deprecation warnings
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|
160 |
__builtins__['display_name'] = deprecated('[3.4] display_name should be imported from cubicweb.schema')(display_name) |
0 | 161 |
|
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162 |
|
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|
163 |
# rql expression utilities function ############################################ |
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164 |
|
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|
165 |
def guess_rrqlexpr_mainvars(expression): |
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166 |
defined = set(split_expression(expression)) |
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167 |
mainvars = [] |
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|
168 |
if 'S' in defined: |
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169 |
mainvars.append('S') |
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170 |
if 'O' in defined: |
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171 |
mainvars.append('O') |
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|
172 |
if 'U' in defined: |
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173 |
mainvars.append('U') |
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174 |
if not mainvars: |
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|
175 |
raise Exception('unable to guess selection variables') |
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|
176 |
return ','.join(sorted(mainvars)) |
3978
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|
177 |
|
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|
178 |
def split_expression(rqlstring): |
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179 |
for expr in rqlstring.split(','): |
4132
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180 |
for noparen in expr.split('('): |
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|
181 |
for word in noparen.split(): |
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|
182 |
yield word |
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|
183 |
|
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|
184 |
def normalize_expression(rqlstring): |
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|
185 |
"""normalize an rql expression to ease schema synchronization (avoid |
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|
186 |
suppressing and reinserting an expression if only a space has been added/removed |
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|
187 |
for instance) |
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|
188 |
""" |
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|
189 |
return u', '.join(' '.join(expr.split()) for expr in rqlstring.split(',')) |
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|
190 |
|
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|
191 |
|
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|
192 |
# Schema objects definition ################################################### |
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|
193 |
|
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can now give context to rschema.display_name(...)
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diff
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|
194 |
def ERSchema_display_name(self, req, form='', context=None): |
0 | 195 |
"""return a internationalized string for the entity/relation type name in |
196 |
a given form |
|
197 |
""" |
|
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|
198 |
return display_name(req, self.type, form, context) |
0 | 199 |
ERSchema.display_name = ERSchema_display_name |
200 |
||
201 |
@cached |
|
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|
202 |
def get_groups(self, action): |
0 | 203 |
"""return the groups authorized to perform <action> on entities of |
204 |
this type |
|
205 |
||
206 |
:type action: str |
|
207 |
:param action: the name of a permission |
|
208 |
||
209 |
:rtype: tuple |
|
210 |
:return: names of the groups with the given permission |
|
211 |
""" |
|
212 |
assert action in self.ACTIONS, action |
|
213 |
#assert action in self._groups, '%s %s' % (self, action) |
|
214 |
try: |
|
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|
215 |
return frozenset(g for g in self.permissions[action] if isinstance(g, basestring)) |
0 | 216 |
except KeyError: |
217 |
return () |
|
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|
218 |
PermissionMixIn.get_groups = get_groups |
0 | 219 |
|
220 |
@cached |
|
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|
221 |
def get_rqlexprs(self, action): |
0 | 222 |
"""return the rql expressions representing queries to check the user is allowed |
223 |
to perform <action> on entities of this type |
|
224 |
||
225 |
:type action: str |
|
226 |
:param action: the name of a permission |
|
227 |
||
228 |
:rtype: tuple |
|
229 |
:return: the rql expressions with the given permission |
|
230 |
""" |
|
231 |
assert action in self.ACTIONS, action |
|
232 |
#assert action in self._rqlexprs, '%s %s' % (self, action) |
|
233 |
try: |
|
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|
234 |
return tuple(g for g in self.permissions[action] if not isinstance(g, basestring)) |
0 | 235 |
except KeyError: |
236 |
return () |
|
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|
237 |
PermissionMixIn.get_rqlexprs = get_rqlexprs |
0 | 238 |
|
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|
239 |
orig_set_action_permissions = PermissionMixIn.set_action_permissions |
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|
240 |
def set_action_permissions(self, action, permissions): |
0 | 241 |
"""set the groups and rql expressions allowing to perform <action> on |
242 |
entities of this type |
|
243 |
||
244 |
:type action: str |
|
245 |
:param action: the name of a permission |
|
246 |
||
247 |
:type permissions: tuple |
|
248 |
:param permissions: the groups and rql expressions allowing the given action |
|
249 |
""" |
|
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|
250 |
orig_set_action_permissions(self, action, tuple(permissions)) |
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|
251 |
clear_cache(self, 'get_rqlexprs') |
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|
252 |
clear_cache(self, 'get_groups') |
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|
253 |
PermissionMixIn.set_action_permissions = set_action_permissions |
0 | 254 |
|
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|
255 |
def has_local_role(self, action): |
0 | 256 |
"""return true if the action *may* be granted localy (eg either rql |
257 |
expressions or the owners group are used in security definition) |
|
258 |
||
259 |
XXX this method is only there since we don't know well how to deal with |
|
260 |
'add' action checking. Also find a better name would be nice. |
|
261 |
""" |
|
262 |
assert action in self.ACTIONS, action |
|
263 |
if self.get_rqlexprs(action): |
|
264 |
return True |
|
265 |
if action in ('update', 'delete'): |
|
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|
266 |
return 'owners' in self.get_groups(action) |
0 | 267 |
return False |
3877
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|
268 |
PermissionMixIn.has_local_role = has_local_role |
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changeset
|
269 |
|
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changeset
|
270 |
def may_have_permission(self, action, req): |
7ca53fc72a0a
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|
271 |
if action != 'read' and not (self.has_local_role('read') or |
7ca53fc72a0a
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|
272 |
self.has_perm(req, 'read')): |
7ca53fc72a0a
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|
273 |
return False |
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changeset
|
274 |
return self.has_local_role(action) or self.has_perm(req, action) |
7ca53fc72a0a
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|
275 |
PermissionMixIn.may_have_permission = may_have_permission |
7ca53fc72a0a
reldefsecurity branch :
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276 |
|
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277 |
def has_perm(self, session, action, **kwargs): |
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"""return true if the action is granted globaly or localy""" |
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279 |
try: |
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280 |
self.check_perm(session, action, **kwargs) |
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281 |
return True |
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282 |
except Unauthorized: |
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283 |
return False |
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284 |
PermissionMixIn.has_perm = has_perm |
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285 |
|
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286 |
def check_perm(self, session, action, **kwargs): |
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287 |
# NB: session may be a server session or a request object check user is |
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288 |
# in an allowed group, if so that's enough internal sessions should |
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289 |
# always stop there |
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290 |
groups = self.get_groups(action) |
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291 |
if session.user.matching_groups(groups): |
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292 |
return |
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293 |
# if 'owners' in allowed groups, check if the user actually owns this |
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294 |
# object, if so that's enough |
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295 |
if 'owners' in groups and ( |
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296 |
kwargs.get('creating') |
4608 | 297 |
or ('eid' in kwargs and session.user.owns(kwargs['eid']))): |
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298 |
return |
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299 |
# else if there is some rql expressions, check them |
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300 |
if any(rqlexpr.check(session, **kwargs) |
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for rqlexpr in self.get_rqlexprs(action)): |
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302 |
return |
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303 |
raise Unauthorized(action, str(self)) |
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304 |
PermissionMixIn.check_perm = check_perm |
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305 |
|
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306 |
|
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307 |
RelationDefinitionSchema._RPROPERTIES['eid'] = None |
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308 |
|
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309 |
def rql_expression(self, expression, mainvars=None, eid=None): |
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"""rql expression factory""" |
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311 |
if self.rtype.final: |
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312 |
return ERQLExpression(expression, mainvars, eid) |
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return RRQLExpression(expression, mainvars, eid) |
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314 |
RelationDefinitionSchema.rql_expression = rql_expression |
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315 |
|
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316 |
orig_check_permission_definitions = RelationDefinitionSchema.check_permission_definitions |
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317 |
def check_permission_definitions(self): |
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318 |
orig_check_permission_definitions(self) |
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319 |
schema = self.subject.schema |
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320 |
for action, groups in self.permissions.iteritems(): |
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321 |
for group_or_rqlexpr in groups: |
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322 |
if action == 'read' and \ |
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323 |
isinstance(group_or_rqlexpr, RQLExpression): |
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324 |
msg = "can't use rql expression for read permission of %s" |
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325 |
raise BadSchemaDefinition(msg % self) |
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326 |
if self.final and isinstance(group_or_rqlexpr, RRQLExpression): |
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327 |
msg = "can't use RRQLExpression on %s, use an ERQLExpression" |
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328 |
raise BadSchemaDefinition(msg % self) |
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329 |
if not self.final and isinstance(group_or_rqlexpr, ERQLExpression): |
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330 |
msg = "can't use ERQLExpression on %s, use a RRQLExpression" |
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331 |
raise BadSchemaDefinition(msg % self) |
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332 |
RelationDefinitionSchema.check_permission_definitions = check_permission_definitions |
0 | 333 |
|
334 |
||
335 |
class CubicWebEntitySchema(EntitySchema): |
|
336 |
"""a entity has a type, a set of subject and or object relations |
|
337 |
the entity schema defines the possible relations for a given type and some |
|
338 |
constraints on those relations |
|
339 |
""" |
|
340 |
def __init__(self, schema=None, edef=None, eid=None, **kwargs): |
|
341 |
super(CubicWebEntitySchema, self).__init__(schema, edef, **kwargs) |
|
342 |
if eid is None and edef is not None: |
|
343 |
eid = getattr(edef, 'eid', None) |
|
344 |
self.eid = eid |
|
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345 |
|
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346 |
def check_permission_definitions(self): |
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347 |
super(CubicWebEntitySchema, self).check_permission_definitions() |
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348 |
for groups in self.permissions.itervalues(): |
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349 |
for group_or_rqlexpr in groups: |
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350 |
if isinstance(group_or_rqlexpr, RRQLExpression): |
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msg = "can't use RRQLExpression on %s, use an ERQLExpression" |
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352 |
raise BadSchemaDefinition(msg % self.type) |
1451 | 353 |
|
0 | 354 |
def attribute_definitions(self): |
355 |
"""return an iterator on attribute definitions |
|
1451 | 356 |
|
0 | 357 |
attribute relations are a subset of subject relations where the |
358 |
object's type is a final entity |
|
1451 | 359 |
|
0 | 360 |
an attribute definition is a 2-uple : |
361 |
* name of the relation |
|
362 |
* schema of the destination entity type |
|
363 |
""" |
|
364 |
iter = super(CubicWebEntitySchema, self).attribute_definitions() |
|
365 |
for rschema, attrschema in iter: |
|
366 |
if rschema.type == 'has_text': |
|
367 |
continue |
|
368 |
yield rschema, attrschema |
|
1451 | 369 |
|
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370 |
def main_attribute(self): |
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"""convenience method that returns the *main* (i.e. the first non meta) |
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372 |
attribute defined in the entity schema |
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373 |
""" |
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374 |
for rschema, _ in self.attribute_definitions(): |
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375 |
if not (rschema in META_RTYPES |
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376 |
or self.is_metadata(rschema)): |
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377 |
return rschema |
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378 |
|
0 | 379 |
def add_subject_relation(self, rschema): |
380 |
"""register the relation schema as possible subject relation""" |
|
381 |
super(CubicWebEntitySchema, self).add_subject_relation(rschema) |
|
382 |
self._update_has_text() |
|
383 |
||
384 |
def del_subject_relation(self, rtype): |
|
385 |
super(CubicWebEntitySchema, self).del_subject_relation(rtype) |
|
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386 |
self._update_has_text(True) |
1451 | 387 |
|
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388 |
def _update_has_text(self, deletion=False): |
0 | 389 |
may_need_has_text, has_has_text = False, False |
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|
390 |
need_has_text = None |
0 | 391 |
for rschema in self.subject_relations(): |
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|
392 |
if rschema.final: |
0 | 393 |
if rschema == 'has_text': |
394 |
has_has_text = True |
|
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395 |
elif self.rdef(rschema).get('fulltextindexed'): |
0 | 396 |
may_need_has_text = True |
397 |
elif rschema.fulltext_container: |
|
398 |
if rschema.fulltext_container == 'subject': |
|
399 |
may_need_has_text = True |
|
400 |
else: |
|
401 |
need_has_text = False |
|
402 |
for rschema in self.object_relations(): |
|
403 |
if rschema.fulltext_container: |
|
404 |
if rschema.fulltext_container == 'object': |
|
405 |
may_need_has_text = True |
|
406 |
else: |
|
407 |
need_has_text = False |
|
408 |
if need_has_text is None: |
|
409 |
need_has_text = may_need_has_text |
|
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|
410 |
if need_has_text and not has_has_text and not deletion: |
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|
411 |
rdef = ybo.RelationDefinition(self.type, 'has_text', 'String', |
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|
412 |
__permissions__=RO_ATTR_PERMS) |
0 | 413 |
self.schema.add_relation_def(rdef) |
414 |
elif not need_has_text and has_has_text: |
|
5122
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|
415 |
# use rschema.del_relation_def and not schema.del_relation_def to |
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|
416 |
# avoid deleting the relation type accidentally... |
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|
417 |
self.schema['has_text'].del_relation_def(self, self.schema['String']) |
1451 | 418 |
|
5896 | 419 |
def schema_entity(self): # XXX @property for consistency with meta |
0 | 420 |
"""return True if this entity type is used to build the schema""" |
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stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
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|
421 |
return self.type in SCHEMA_TYPES |
0 | 422 |
|
423 |
def rql_expression(self, expression, mainvars=None, eid=None): |
|
424 |
"""rql expression factory""" |
|
425 |
return ERQLExpression(expression, mainvars, eid) |
|
1451 | 426 |
|
2252 | 427 |
|
0 | 428 |
class CubicWebRelationSchema(RelationSchema): |
1451 | 429 |
|
0 | 430 |
def __init__(self, schema=None, rdef=None, eid=None, **kwargs): |
431 |
if rdef is not None: |
|
432 |
# if this relation is inlined |
|
433 |
self.inlined = rdef.inlined |
|
434 |
super(CubicWebRelationSchema, self).__init__(schema, rdef, **kwargs) |
|
435 |
if eid is None and rdef is not None: |
|
436 |
eid = getattr(rdef, 'eid', None) |
|
437 |
self.eid = eid |
|
1451 | 438 |
|
2126
a25859917ccc
stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
439 |
@property |
a25859917ccc
stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
440 |
def meta(self): |
2622
3c7edaa6c6d2
oops, should have been in a earlier commit (META_RELATION_TYPES renaming)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2616
diff
changeset
|
441 |
return self.type in META_RTYPES |
1451 | 442 |
|
5896 | 443 |
def schema_relation(self): # XXX @property for consistency with meta |
2126
a25859917ccc
stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
444 |
"""return True if this relation type is used to build the schema""" |
a25859917ccc
stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
445 |
return self.type in SCHEMA_TYPES |
1451 | 446 |
|
3877
7ca53fc72a0a
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parents:
3827
diff
changeset
|
447 |
def may_have_permission(self, action, req, eschema=None, role=None): |
7ca53fc72a0a
reldefsecurity branch :
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parents:
3827
diff
changeset
|
448 |
if eschema is not None: |
4019 | 449 |
for tschema in self.targets(eschema, role): |
450 |
rdef = self.role_rdef(eschema, tschema, role) |
|
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
451 |
if rdef.may_have_permission(action, req): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
452 |
return True |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
453 |
else: |
7ca53fc72a0a
reldefsecurity branch :
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parents:
3827
diff
changeset
|
454 |
for rdef in self.rdefs.itervalues(): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
455 |
if rdef.may_have_permission(action, req): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
456 |
return True |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
457 |
return False |
0 | 458 |
|
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
459 |
def has_perm(self, session, action, **kwargs): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
460 |
"""return true if the action is granted globaly or localy""" |
4575
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
461 |
if self.final: |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
462 |
assert not ('fromeid' in kwargs or 'toeid' in kwargs), kwargs |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
463 |
assert action in ('read', 'update') |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
464 |
if 'eid' in kwargs: |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
465 |
subjtype = session.describe(kwargs['eid'])[0] |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
466 |
else: |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
467 |
subjtype = objtype = None |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
468 |
else: |
4575
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
469 |
assert not 'eid' in kwargs, kwargs |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
470 |
assert action in ('read', 'add', 'delete') |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
471 |
if 'fromeid' in kwargs: |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
472 |
subjtype = session.describe(kwargs['fromeid'])[0] |
5746
f4fc424747db
[security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5703
diff
changeset
|
473 |
elif 'frometype' in kwargs: |
f4fc424747db
[security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5703
diff
changeset
|
474 |
subjtype = kwargs.pop('frometype') |
4575
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
475 |
else: |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
476 |
subjtype = None |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
477 |
if 'toeid' in kwargs: |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
478 |
objtype = session.describe(kwargs['toeid'])[0] |
5746
f4fc424747db
[security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5703
diff
changeset
|
479 |
elif 'toetype' in kwargs: |
f4fc424747db
[security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5703
diff
changeset
|
480 |
objtype = kwargs.pop('toetype') |
4575
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
481 |
else: |
4a7fe84f7803
[schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4574
diff
changeset
|
482 |
objtype = None |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
483 |
if objtype and subjtype: |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
484 |
return self.rdef(subjtype, objtype).has_perm(session, action, **kwargs) |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
485 |
elif subjtype: |
4004
c52619c738a5
api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4003
diff
changeset
|
486 |
for tschema in self.targets(subjtype, 'subject'): |
c52619c738a5
api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4003
diff
changeset
|
487 |
rdef = self.rdef(subjtype, tschema) |
4045
f4a52abb6f4f
cw 3.6 api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4037
diff
changeset
|
488 |
if not rdef.has_perm(session, action, **kwargs): |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
489 |
return False |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
490 |
elif objtype: |
4004
c52619c738a5
api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4003
diff
changeset
|
491 |
for tschema in self.targets(objtype, 'object'): |
c52619c738a5
api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4003
diff
changeset
|
492 |
rdef = self.rdef(tschema, objtype) |
c52619c738a5
api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4003
diff
changeset
|
493 |
if not rdef.has_perm(session, action, **kwargs): |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
494 |
return False |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
495 |
else: |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
496 |
for rdef in self.rdefs.itervalues(): |
4004
c52619c738a5
api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
4003
diff
changeset
|
497 |
if not rdef.has_perm(session, action, **kwargs): |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
498 |
return False |
4233
94ffaecd8e8c
ouch, has_perm was always returning False...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4181
diff
changeset
|
499 |
return True |
0 | 500 |
|
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
501 |
@deprecated('use .rdef(subjtype, objtype).role_cardinality(role)') |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
502 |
def cardinality(self, subjtype, objtype, target): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
503 |
return self.rdef(subjtype, objtype).role_cardinality(target) |
0 | 504 |
|
1451 | 505 |
|
0 | 506 |
class CubicWebSchema(Schema): |
507 |
"""set of entities and relations schema defining the possible data sets |
|
508 |
used in an application |
|
509 |
||
510 |
:type name: str |
|
2476
1294a6bdf3bf
application -> instance where it makes sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2460
diff
changeset
|
511 |
:ivar name: name of the schema, usually the instance identifier |
1451 | 512 |
|
0 | 513 |
:type base: str |
514 |
:ivar base: path of the directory where the schema is defined |
|
515 |
""" |
|
1451 | 516 |
reading_from_database = False |
0 | 517 |
entity_class = CubicWebEntitySchema |
518 |
relation_class = CubicWebRelationSchema |
|
2958
44e5446b649b
no inference for the identity relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2926
diff
changeset
|
519 |
no_specialization_inference = ('identity',) |
0 | 520 |
|
521 |
def __init__(self, *args, **kwargs): |
|
522 |
self._eid_index = {} |
|
523 |
super(CubicWebSchema, self).__init__(*args, **kwargs) |
|
524 |
ybo.register_base_types(self) |
|
2300
c8151d004e06
meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2293
diff
changeset
|
525 |
rschema = self.add_relation_type(ybo.RelationType('eid')) |
0 | 526 |
rschema.final = True |
2300
c8151d004e06
meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2293
diff
changeset
|
527 |
rschema = self.add_relation_type(ybo.RelationType('has_text')) |
0 | 528 |
rschema.final = True |
2300
c8151d004e06
meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2293
diff
changeset
|
529 |
rschema = self.add_relation_type(ybo.RelationType('identity')) |
0 | 530 |
rschema.final = False |
1451 | 531 |
|
0 | 532 |
def add_entity_type(self, edef): |
533 |
edef.name = edef.name.encode() |
|
534 |
edef.name = bw_normalize_etype(edef.name) |
|
535 |
assert re.match(r'[A-Z][A-Za-z0-9]*[a-z]+[0-9]*$', edef.name), repr(edef.name) |
|
536 |
eschema = super(CubicWebSchema, self).add_entity_type(edef) |
|
3689
deb13e88e037
follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3554
diff
changeset
|
537 |
if not eschema.final: |
0 | 538 |
# automatically add the eid relation to non final entity types |
539 |
rdef = ybo.RelationDefinition(eschema.type, 'eid', 'Int', |
|
4755
13a5d3a7410e
[schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4754
diff
changeset
|
540 |
cardinality='11', uid=True, |
13a5d3a7410e
[schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4754
diff
changeset
|
541 |
__permissions__=RO_ATTR_PERMS) |
0 | 542 |
self.add_relation_def(rdef) |
4755
13a5d3a7410e
[schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4754
diff
changeset
|
543 |
rdef = ybo.RelationDefinition(eschema.type, 'identity', eschema.type, |
13a5d3a7410e
[schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4754
diff
changeset
|
544 |
__permissions__=RO_REL_PERMS) |
0 | 545 |
self.add_relation_def(rdef) |
546 |
self._eid_index[eschema.eid] = eschema |
|
547 |
return eschema |
|
1451 | 548 |
|
0 | 549 |
def add_relation_type(self, rdef): |
550 |
rdef.name = rdef.name.lower().encode() |
|
551 |
rschema = super(CubicWebSchema, self).add_relation_type(rdef) |
|
552 |
self._eid_index[rschema.eid] = rschema |
|
553 |
return rschema |
|
1451 | 554 |
|
0 | 555 |
def add_relation_def(self, rdef): |
556 |
"""build a part of a relation schema |
|
557 |
(i.e. add a relation between two specific entity's types) |
|
558 |
||
559 |
:type subject: str |
|
560 |
:param subject: entity's type that is subject of the relation |
|
561 |
||
562 |
:type rtype: str |
|
563 |
:param rtype: the relation's type (i.e. the name of the relation) |
|
564 |
||
565 |
:type obj: str |
|
566 |
:param obj: entity's type that is object of the relation |
|
567 |
||
568 |
:rtype: RelationSchema |
|
569 |
:param: the newly created or just completed relation schema |
|
570 |
""" |
|
571 |
rdef.name = rdef.name.lower() |
|
572 |
rdef.subject = bw_normalize_etype(rdef.subject) |
|
573 |
rdef.object = bw_normalize_etype(rdef.object) |
|
5558
afd1face1faf
[schema migration] make some stuff to ease file 1.9 migration : we want to kill the Image entity so that existing image are turned into (existing entity type) File entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
574 |
try: |
afd1face1faf
[schema migration] make some stuff to ease file 1.9 migration : we want to kill the Image entity so that existing image are turned into (existing entity type) File entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
575 |
rdefs = super(CubicWebSchema, self).add_relation_def(rdef) |
afd1face1faf
[schema migration] make some stuff to ease file 1.9 migration : we want to kill the Image entity so that existing image are turned into (existing entity type) File entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
576 |
except BadSchemaDefinition: |
afd1face1faf
[schema migration] make some stuff to ease file 1.9 migration : we want to kill the Image entity so that existing image are turned into (existing entity type) File entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
577 |
reversed_etype_map = dict( (v, k) for k, v in ETYPE_NAME_MAP.iteritems() ) |
afd1face1faf
[schema migration] make some stuff to ease file 1.9 migration : we want to kill the Image entity so that existing image are turned into (existing entity type) File entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
578 |
if rdef.subject in reversed_etype_map or rdef.object in reversed_etype_map: |
afd1face1faf
[schema migration] make some stuff to ease file 1.9 migration : we want to kill the Image entity so that existing image are turned into (existing entity type) File entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
579 |
return |
afd1face1faf
[schema migration] make some stuff to ease file 1.9 migration : we want to kill the Image entity so that existing image are turned into (existing entity type) File entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
580 |
raise |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
581 |
if rdefs: |
1034
0356bbfb2f26
fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents:
1016
diff
changeset
|
582 |
try: |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
583 |
self._eid_index[rdef.eid] = rdefs |
1034
0356bbfb2f26
fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents:
1016
diff
changeset
|
584 |
except AttributeError: |
0356bbfb2f26
fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents:
1016
diff
changeset
|
585 |
pass # not a serialized schema |
4003
b9436fe77c9e
fix bad merge
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents:
3998
diff
changeset
|
586 |
return rdefs |
1451 | 587 |
|
0 | 588 |
def del_relation_type(self, rtype): |
589 |
rschema = self.rschema(rtype) |
|
590 |
self._eid_index.pop(rschema.eid, None) |
|
591 |
super(CubicWebSchema, self).del_relation_type(rtype) |
|
1451 | 592 |
|
0 | 593 |
def del_relation_def(self, subjtype, rtype, objtype): |
594 |
for k, v in self._eid_index.items(): |
|
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
595 |
if not isinstance(v, RelationDefinitionSchema): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
596 |
continue |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
597 |
if v.subject == subjtype and v.rtype == rtype and v.object == objtype: |
0 | 598 |
del self._eid_index[k] |
2718
3a56b87bb5d6
[schema] break when found
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2716
diff
changeset
|
599 |
break |
0 | 600 |
super(CubicWebSchema, self).del_relation_def(subjtype, rtype, objtype) |
1451 | 601 |
|
0 | 602 |
def del_entity_type(self, etype): |
603 |
eschema = self.eschema(etype) |
|
604 |
self._eid_index.pop(eschema.eid, None) |
|
605 |
# deal with has_text first, else its automatic deletion (see above) |
|
606 |
# may trigger an error in ancestor's del_entity_type method |
|
607 |
if 'has_text' in eschema.subject_relations(): |
|
608 |
self.del_relation_def(etype, 'has_text', 'String') |
|
609 |
super(CubicWebSchema, self).del_entity_type(etype) |
|
1451 | 610 |
|
0 | 611 |
def schema_by_eid(self, eid): |
612 |
return self._eid_index[eid] |
|
613 |
||
614 |
||
615 |
# Possible constraints ######################################################## |
|
616 |
||
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
617 |
class BaseRQLConstraint(BaseConstraint): |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
618 |
"""base class for rql constraints |
0 | 619 |
""" |
1451 | 620 |
|
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
621 |
def __init__(self, restriction, mainvars=None): |
3963
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
622 |
self.restriction = normalize_expression(restriction) |
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
623 |
if mainvars is None: |
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
624 |
mainvars = guess_rrqlexpr_mainvars(restriction) |
3963
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
625 |
else: |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
626 |
normmainvars = [] |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
627 |
for mainvar in mainvars.split(','): |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
628 |
mainvar = mainvar.strip() |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
629 |
if not mainvar.isalpha(): |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
630 |
raise Exception('bad mainvars %s' % mainvars) |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
631 |
normmainvars.append(mainvar) |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
632 |
assert mainvars, 'bad mainvars %s' % mainvars |
0d592677e55f
nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3961
diff
changeset
|
633 |
mainvars = ','.join(sorted(normmainvars)) |
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
634 |
self.mainvars = mainvars |
0 | 635 |
|
636 |
def serialize(self): |
|
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
637 |
# start with a comma for bw compat, see below |
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
638 |
return ';' + self.mainvars + ';' + self.restriction |
1451 | 639 |
|
5378
0f54a0e128ac
[schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5372
diff
changeset
|
640 |
@classmethod |
0 | 641 |
def deserialize(cls, value): |
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
642 |
# XXX < 3.5.10 bw compat |
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
643 |
if not value.startswith(';'): |
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
644 |
return cls(value) |
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
645 |
_, mainvars, restriction = value.split(';', 2) |
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
646 |
return cls(restriction, mainvars) |
1451 | 647 |
|
0 | 648 |
def check(self, entity, rtype, value): |
649 |
"""return true if the value satisfy the constraint, else false""" |
|
650 |
# implemented as a hook in the repository |
|
651 |
return 1 |
|
652 |
||
653 |
def repo_check(self, session, eidfrom, rtype, eidto): |
|
654 |
"""raise ValidationError if the relation doesn't satisfy the constraint |
|
655 |
""" |
|
3554
26e586f3c15c
[schema] make RQL* constraints usable w/ attributes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3347
diff
changeset
|
656 |
pass # this is a vocabulary constraint, not enforce XXX why? |
1451 | 657 |
|
0 | 658 |
def __str__(self): |
3965
94f95928f5ae
nicer __str__ and __repr__ methods on rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3964
diff
changeset
|
659 |
return '%s(Any %s WHERE %s)' % (self.__class__.__name__, self.mainvars, |
94f95928f5ae
nicer __str__ and __repr__ methods on rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3964
diff
changeset
|
660 |
self.restriction) |
0 | 661 |
|
662 |
def __repr__(self): |
|
3965
94f95928f5ae
nicer __str__ and __repr__ methods on rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3964
diff
changeset
|
663 |
return '<%s @%#x>' % (self.__str__(), id(self)) |
0 | 664 |
|
665 |
||
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
666 |
class RQLVocabularyConstraint(BaseRQLConstraint): |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
667 |
"""the rql vocabulary constraint : |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
668 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
669 |
limit the proposed values to a set of entities returned by a rql query, |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
670 |
but this is not enforced at the repository level |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
671 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
672 |
restriction is additional rql restriction that will be added to |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
673 |
a predefined query, where the S and O variables respectivly represent |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
674 |
the subject and the object of the relation |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
675 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
676 |
mainvars is a string that should be used as selection variable (eg |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
677 |
`'Any %s WHERE ...' % mainvars`). If not specified, an attempt will be |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
678 |
done to guess it according to variable used in the expression. |
0 | 679 |
""" |
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
680 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
681 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
682 |
class RepoEnforcedRQLConstraintMixIn(object): |
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
683 |
|
3964
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
684 |
def __init__(self, restriction, mainvars=None, msg=None): |
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
685 |
super(RepoEnforcedRQLConstraintMixIn, self).__init__(restriction, mainvars) |
3964
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
686 |
self.msg = msg |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
687 |
|
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
688 |
def serialize(self): |
3968
e8dbad65a7a2
fix format string
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
3967
diff
changeset
|
689 |
# start with a semicolon for bw compat, see below |
e8dbad65a7a2
fix format string
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
3967
diff
changeset
|
690 |
return ';%s;%s\n%s' % (self.mainvars, self.restriction, |
3964
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
691 |
self.msg or '') |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
692 |
|
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
693 |
def deserialize(cls, value): |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
694 |
# XXX < 3.5.10 bw compat |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
695 |
if not value.startswith(';'): |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
696 |
return cls(value) |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
697 |
value, msg = value.split('\n', 1) |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
698 |
_, mainvars, restriction = value.split(';', 2) |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
699 |
return cls(restriction, mainvars, msg) |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
700 |
deserialize = classmethod(deserialize) |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
701 |
|
3554
26e586f3c15c
[schema] make RQL* constraints usable w/ attributes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3347
diff
changeset
|
702 |
def repo_check(self, session, eidfrom, rtype, eidto=None): |
0 | 703 |
"""raise ValidationError if the relation doesn't satisfy the constraint |
704 |
""" |
|
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
705 |
if not self.match_condition(session, eidfrom, eidto): |
3964
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
706 |
# XXX at this point if both or neither of S and O are in mainvar we |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
707 |
# dunno if the validation error `occured` on eidfrom or eidto (from |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
708 |
# user interface point of view) |
5030
5238d9a8dfee
[form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4913
diff
changeset
|
709 |
# |
5238d9a8dfee
[form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4913
diff
changeset
|
710 |
# possible enhancement: check entity being created, it's probably |
5238d9a8dfee
[form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4913
diff
changeset
|
711 |
# the main eid unless this is a composite relation |
3964
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
712 |
if eidto is None or 'S' in self.mainvars or not 'O' in self.mainvars: |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
713 |
maineid = eidfrom |
5030
5238d9a8dfee
[form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4913
diff
changeset
|
714 |
qname = role_name(rtype, 'subject') |
3964
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
715 |
else: |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
716 |
maineid = eidto |
5030
5238d9a8dfee
[form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4913
diff
changeset
|
717 |
qname = role_name(rtype, 'object') |
3964
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
718 |
if self.msg: |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
719 |
msg = session._(self.msg) |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
720 |
else: |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
721 |
msg = '%(constraint)s %(restriction)s failed' % { |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
722 |
'constraint': session._(self.type()), |
21387ffb0731
refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3963
diff
changeset
|
723 |
'restriction': self.restriction} |
5030
5238d9a8dfee
[form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4913
diff
changeset
|
724 |
raise ValidationError(maineid, {qname: msg}) |
0 | 725 |
|
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
726 |
def exec_query(self, session, eidfrom, eidto): |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
727 |
if eidto is None: |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
728 |
# checking constraint for an attribute relation |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
729 |
restriction = 'S eid %(s)s, ' + self.restriction |
5174
78438ad513ca
#759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5122
diff
changeset
|
730 |
args = {'s': eidfrom} |
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
731 |
else: |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
732 |
restriction = 'S eid %(s)s, O eid %(o)s, ' + self.restriction |
5174
78438ad513ca
#759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5122
diff
changeset
|
733 |
args = {'s': eidfrom, 'o': eidto} |
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
734 |
rql = 'Any %s WHERE %s' % (self.mainvars, restriction) |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
735 |
if self.distinct_query: |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
736 |
rql = 'DISTINCT ' + rql |
5174
78438ad513ca
#759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5122
diff
changeset
|
737 |
return session.execute(rql, args, build_descr=False) |
0 | 738 |
|
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
739 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
740 |
class RQLConstraint(RepoEnforcedRQLConstraintMixIn, RQLVocabularyConstraint): |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
741 |
"""the rql constraint is similar to the RQLVocabularyConstraint but |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
742 |
are also enforced at the repository level |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
743 |
""" |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
744 |
distinct_query = False |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
745 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
746 |
def match_condition(self, session, eidfrom, eidto): |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
747 |
return self.exec_query(session, eidfrom, eidto) |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
748 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
749 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
750 |
class RQLUniqueConstraint(RepoEnforcedRQLConstraintMixIn, BaseRQLConstraint): |
0 | 751 |
"""the unique rql constraint check that the result of the query isn't |
752 |
greater than one |
|
753 |
""" |
|
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
754 |
distinct_query = True |
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
755 |
|
3985
d5bf894fcf02
add some notes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3980
diff
changeset
|
756 |
# XXX turns mainvars into a required argument in __init__, since we've no |
d5bf894fcf02
add some notes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3980
diff
changeset
|
757 |
# way to guess it correctly (eg if using S,O or U the constraint will |
d5bf894fcf02
add some notes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3980
diff
changeset
|
758 |
# always be satisfied since we've to use a DISTINCT query) |
d5bf894fcf02
add some notes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3980
diff
changeset
|
759 |
|
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
760 |
def match_condition(self, session, eidfrom, eidto): |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
761 |
return len(self.exec_query(session, eidfrom, eidto)) <= 1 |
0 | 762 |
|
763 |
||
764 |
class RQLExpression(object): |
|
765 |
def __init__(self, expression, mainvars, eid): |
|
766 |
self.eid = eid # eid of the entity representing this rql expression |
|
767 |
if not isinstance(mainvars, unicode): |
|
768 |
mainvars = unicode(mainvars) |
|
769 |
self.mainvars = mainvars |
|
770 |
self.expression = normalize_expression(expression) |
|
771 |
try: |
|
772 |
self.rqlst = parse(self.full_rql, print_errors=False).children[0] |
|
773 |
except RQLSyntaxError: |
|
774 |
raise RQLSyntaxError(expression) |
|
775 |
for mainvar in mainvars.split(','): |
|
776 |
if len(self.rqlst.defined_vars[mainvar].references()) <= 2: |
|
2142
098aa2075903
include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
777 |
_LOGGER.warn('You did not use the %s variable in your RQL ' |
098aa2075903
include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
778 |
'expression %s', mainvar, self) |
3825 | 779 |
# syntax tree used by read security (inserted in queries when necessary) |
3240
8604a15995d1
refactor so that rql rewriter may be used outside the server. Enhance it to be usable for RRQLExpression as well
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2967
diff
changeset
|
780 |
self.snippet_rqlst = parse(self.minimal_rql, print_errors=False).children[0] |
1451 | 781 |
|
0 | 782 |
def __str__(self): |
783 |
return self.full_rql |
|
784 |
def __repr__(self): |
|
785 |
return '%s(%s)' % (self.__class__.__name__, self.full_rql) |
|
1451 | 786 |
|
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
787 |
def __cmp__(self, other): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
788 |
if hasattr(other, 'expression'): |
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
789 |
return cmp(other.expression, self.expression) |
4066
0555f170c4d1
__cmp__ should *NOT* return False when different
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4045
diff
changeset
|
790 |
return -1 |
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
791 |
|
0 | 792 |
def __deepcopy__(self, memo): |
793 |
return self.__class__(self.expression, self.mainvars) |
|
794 |
def __getstate__(self): |
|
795 |
return (self.expression, self.mainvars) |
|
796 |
def __setstate__(self, state): |
|
797 |
self.__init__(*state) |
|
1451 | 798 |
|
0 | 799 |
@cached |
800 |
def transform_has_permission(self): |
|
801 |
found = None |
|
802 |
rqlst = self.rqlst |
|
803 |
for var in rqlst.defined_vars.itervalues(): |
|
804 |
for varref in var.references(): |
|
805 |
rel = varref.relation() |
|
806 |
if rel is None: |
|
807 |
continue |
|
808 |
try: |
|
809 |
prefix, action, suffix = rel.r_type.split('_') |
|
810 |
except ValueError: |
|
811 |
continue |
|
812 |
if prefix != 'has' or suffix != 'permission' or \ |
|
813 |
not action in ('add', 'delete', 'update', 'read'): |
|
814 |
continue |
|
815 |
if found is None: |
|
816 |
found = [] |
|
817 |
rqlst.save_state() |
|
818 |
assert rel.children[0].name == 'U' |
|
819 |
objvar = rel.children[1].children[0].variable |
|
820 |
rqlst.remove_node(rel) |
|
821 |
selected = [v.name for v in rqlst.get_selected_variables()] |
|
822 |
if objvar.name not in selected: |
|
823 |
colindex = len(selected) |
|
824 |
rqlst.add_selected(objvar) |
|
825 |
else: |
|
826 |
colindex = selected.index(objvar.name) |
|
4717
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
827 |
found.append((action, colindex)) |
0 | 828 |
# remove U eid %(u)s if U is not used in any other relation |
829 |
uvrefs = rqlst.defined_vars['U'].references() |
|
830 |
if len(uvrefs) == 1: |
|
831 |
rqlst.remove_node(uvrefs[0].relation()) |
|
832 |
if found is not None: |
|
833 |
rql = rqlst.as_string() |
|
834 |
if len(rqlst.selection) == 1 and isinstance(rqlst.where, nodes.Relation): |
|
835 |
# only "Any X WHERE X eid %(x)s" remaining, no need to execute the rql |
|
836 |
keyarg = rqlst.selection[0].name.lower() |
|
837 |
else: |
|
838 |
keyarg = None |
|
839 |
rqlst.recover() |
|
840 |
return rql, found, keyarg |
|
841 |
return rqlst.as_string(), None, None |
|
1451 | 842 |
|
0 | 843 |
def _check(self, session, **kwargs): |
844 |
"""return True if the rql expression is matching the given relation |
|
845 |
between fromeid and toeid |
|
846 |
||
847 |
session may actually be a request as well |
|
848 |
""" |
|
4607
55eab66c6592
[schema security] fix so that when cheking attributes perms for an entity being created, 'owners' and has_*_permission in erqlexpr are considered satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4586
diff
changeset
|
849 |
creating = kwargs.get('creating') |
55eab66c6592
[schema security] fix so that when cheking attributes perms for an entity being created, 'owners' and has_*_permission in erqlexpr are considered satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4586
diff
changeset
|
850 |
if not creating and self.eid is not None: |
0 | 851 |
key = (self.eid, tuple(sorted(kwargs.iteritems()))) |
852 |
try: |
|
853 |
return session.local_perm_cache[key] |
|
854 |
except KeyError: |
|
855 |
pass |
|
856 |
rql, has_perm_defs, keyarg = self.transform_has_permission() |
|
5703
24ca7615379b
[security] consider any rql expression refering to X while X is being created as satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
857 |
# when creating an entity, expression related to X satisfied |
24ca7615379b
[security] consider any rql expression refering to X while X is being created as satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
858 |
if creating and 'X' in self.rqlst.defined_vars: |
24ca7615379b
[security] consider any rql expression refering to X while X is being created as satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5531
diff
changeset
|
859 |
return True |
0 | 860 |
if keyarg is None: |
4619
f4254586e867
[security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4608
diff
changeset
|
861 |
kwargs.setdefault('u', session.user.eid) |
0 | 862 |
try: |
5174
78438ad513ca
#759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5122
diff
changeset
|
863 |
rset = session.execute(rql, kwargs, build_descr=True) |
0 | 864 |
except NotImplementedError: |
865 |
self.critical('cant check rql expression, unsupported rql %s', rql) |
|
866 |
if self.eid is not None: |
|
867 |
session.local_perm_cache[key] = False |
|
868 |
return False |
|
869 |
except TypeResolverException, ex: |
|
870 |
# some expression may not be resolvable with current kwargs |
|
871 |
# (type conflict) |
|
872 |
self.warning('%s: %s', rql, str(ex)) |
|
873 |
if self.eid is not None: |
|
874 |
session.local_perm_cache[key] = False |
|
875 |
return False |
|
5531
0ce62ac0d1d7
catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5426
diff
changeset
|
876 |
except Unauthorized, ex: |
0ce62ac0d1d7
catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5426
diff
changeset
|
877 |
self.debug('unauthorized %s: %s', rql, str(ex)) |
0ce62ac0d1d7
catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5426
diff
changeset
|
878 |
if self.eid is not None: |
0ce62ac0d1d7
catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5426
diff
changeset
|
879 |
session.local_perm_cache[key] = False |
0ce62ac0d1d7
catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5426
diff
changeset
|
880 |
return False |
0 | 881 |
else: |
882 |
rset = session.eid_rset(kwargs[keyarg]) |
|
883 |
# if no special has_*_permission relation in the rql expression, just |
|
884 |
# check the result set contains something |
|
885 |
if has_perm_defs is None: |
|
886 |
if rset: |
|
887 |
if self.eid is not None: |
|
888 |
session.local_perm_cache[key] = True |
|
889 |
return True |
|
890 |
elif rset: |
|
891 |
# check every special has_*_permission relation is satisfied |
|
892 |
get_eschema = session.vreg.schema.eschema |
|
893 |
try: |
|
4717
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
894 |
for eaction, col in has_perm_defs: |
0 | 895 |
for i in xrange(len(rset)): |
896 |
eschema = get_eschema(rset.description[i][col]) |
|
3877
7ca53fc72a0a
reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
897 |
eschema.check_perm(session, eaction, eid=rset[i][col]) |
0 | 898 |
if self.eid is not None: |
899 |
session.local_perm_cache[key] = True |
|
900 |
return True |
|
901 |
except Unauthorized: |
|
902 |
pass |
|
903 |
if self.eid is not None: |
|
904 |
session.local_perm_cache[key] = False |
|
905 |
return False |
|
1451 | 906 |
|
0 | 907 |
@property |
908 |
def minimal_rql(self): |
|
909 |
return 'Any %s WHERE %s' % (self.mainvars, self.expression) |
|
910 |
||
911 |
||
912 |
class ERQLExpression(RQLExpression): |
|
913 |
def __init__(self, expression, mainvars=None, eid=None): |
|
914 |
RQLExpression.__init__(self, expression, mainvars or 'X', eid) |
|
915 |
||
916 |
@property |
|
917 |
def full_rql(self): |
|
918 |
rql = self.minimal_rql |
|
919 |
rqlst = getattr(self, 'rqlst', None) # may be not set yet |
|
920 |
if rqlst is not None: |
|
921 |
defined = rqlst.defined_vars |
|
922 |
else: |
|
923 |
defined = set(split_expression(self.expression)) |
|
924 |
if 'X' in defined: |
|
925 |
rql += ', X eid %(x)s' |
|
926 |
if 'U' in defined: |
|
927 |
rql += ', U eid %(u)s' |
|
928 |
return rql |
|
1451 | 929 |
|
4619
f4254586e867
[security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4608
diff
changeset
|
930 |
def check(self, session, eid=None, creating=False, **kwargs): |
0 | 931 |
if 'X' in self.rqlst.defined_vars: |
932 |
if eid is None: |
|
4607
55eab66c6592
[schema security] fix so that when cheking attributes perms for an entity being created, 'owners' and has_*_permission in erqlexpr are considered satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4586
diff
changeset
|
933 |
if creating: |
4619
f4254586e867
[security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4608
diff
changeset
|
934 |
return self._check(session, creating=True, **kwargs) |
0 | 935 |
return False |
4607
55eab66c6592
[schema security] fix so that when cheking attributes perms for an entity being created, 'owners' and has_*_permission in erqlexpr are considered satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4586
diff
changeset
|
936 |
assert creating == False |
4619
f4254586e867
[security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4608
diff
changeset
|
937 |
return self._check(session, x=eid, **kwargs) |
f4254586e867
[security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4608
diff
changeset
|
938 |
return self._check(session, **kwargs) |
1451 | 939 |
|
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
940 |
|
0 | 941 |
class RRQLExpression(RQLExpression): |
942 |
def __init__(self, expression, mainvars=None, eid=None): |
|
943 |
if mainvars is None: |
|
3961
d1cbf77db999
fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3827
diff
changeset
|
944 |
mainvars = guess_rrqlexpr_mainvars(expression) |
0 | 945 |
RQLExpression.__init__(self, expression, mainvars, eid) |
3827 | 946 |
# graph of links between variable, used by rql rewriter |
3826
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
947 |
self.vargraph = {} |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
948 |
for relation in self.rqlst.get_nodes(nodes.Relation): |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
949 |
try: |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
950 |
rhsvarname = relation.children[1].children[0].variable.name |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
951 |
lhsvarname = relation.children[0].name |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
952 |
except AttributeError: |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
953 |
pass |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
954 |
else: |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
955 |
self.vargraph.setdefault(lhsvarname, []).append(rhsvarname) |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
956 |
self.vargraph.setdefault(rhsvarname, []).append(lhsvarname) |
0c0c051863cb
close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3825
diff
changeset
|
957 |
#self.vargraph[(lhsvarname, rhsvarname)] = relation.r_type |
0 | 958 |
|
959 |
@property |
|
960 |
def full_rql(self): |
|
961 |
rql = self.minimal_rql |
|
962 |
rqlst = getattr(self, 'rqlst', None) # may be not set yet |
|
963 |
if rqlst is not None: |
|
964 |
defined = rqlst.defined_vars |
|
965 |
else: |
|
966 |
defined = set(split_expression(self.expression)) |
|
967 |
if 'S' in defined: |
|
968 |
rql += ', S eid %(s)s' |
|
969 |
if 'O' in defined: |
|
970 |
rql += ', O eid %(o)s' |
|
971 |
if 'U' in defined: |
|
972 |
rql += ', U eid %(u)s' |
|
973 |
return rql |
|
1451 | 974 |
|
0 | 975 |
def check(self, session, fromeid=None, toeid=None): |
976 |
kwargs = {} |
|
977 |
if 'S' in self.rqlst.defined_vars: |
|
978 |
if fromeid is None: |
|
979 |
return False |
|
980 |
kwargs['s'] = fromeid |
|
981 |
if 'O' in self.rqlst.defined_vars: |
|
982 |
if toeid is None: |
|
983 |
return False |
|
984 |
kwargs['o'] = toeid |
|
985 |
return self._check(session, **kwargs) |
|
1451 | 986 |
|
4570
ede247bbbf62
follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
987 |
# in yams, default 'update' perm for attributes granted to managers and owners. |
ede247bbbf62
follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
988 |
# Within cw, we want to default to users who may edit the entity holding the |
ede247bbbf62
follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
989 |
# attribute. |
4586
440e340c61fe
DEFAULT_ATTRPERMS is now public
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4575
diff
changeset
|
990 |
ybo.DEFAULT_ATTRPERMS['update'] = ( |
4570
ede247bbbf62
follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
991 |
'managers', ERQLExpression('U has_update_permission X')) |
0 | 992 |
|
629
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
993 |
# workflow extensions ######################################################### |
2926
4484387ed012
when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
994 |
|
2460
ce1a7ffc6c90
fix a couple NameErrors
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
2459
diff
changeset
|
995 |
from yams.buildobjs import _add_relation as yams_add_relation |
629
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
996 |
|
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
997 |
class workflowable_definition(ybo.metadefinition): |
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
998 |
"""extends default EntityType's metaclass to add workflow relations |
5378
0f54a0e128ac
[schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5372
diff
changeset
|
999 |
(i.e. in_state, wf_info_for and custom_workflow). This is the default |
0f54a0e128ac
[schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5372
diff
changeset
|
1000 |
metaclass for WorkflowableEntityType. |
629
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
1001 |
""" |
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
1002 |
def __new__(mcs, name, bases, classdict): |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1003 |
abstract = classdict.pop('__abstract__', False) |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1004 |
cls = super(workflowable_definition, mcs).__new__(mcs, name, bases, |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1005 |
classdict) |
629
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
1006 |
if not abstract: |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1007 |
make_workflowable(cls) |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1008 |
return cls |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1009 |
|
5379
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1010 |
class WorkflowableEntityType(ybo.EntityType): |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1011 |
"""Use this base class instead of :class:`EntityType` to have workflow |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1012 |
relations (i.e. `in_state`, `wf_info_for` and `custom_workflow`) on your |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1013 |
entity type. |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1014 |
""" |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1015 |
__metaclass__ = workflowable_definition |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1016 |
__abstract__ = True |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1017 |
|
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1018 |
|
2957
2daabf4c646e
[schema] make_workflowable now take an option description for the in_state relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2931
diff
changeset
|
1019 |
def make_workflowable(cls, in_state_descr=None): |
5378
0f54a0e128ac
[schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5372
diff
changeset
|
1020 |
"""Adds workflow relations as :class:`WorkflowableEntityType`, but usable on |
0f54a0e128ac
[schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5372
diff
changeset
|
1021 |
existing classes which are not using that base class. |
0f54a0e128ac
[schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5372
diff
changeset
|
1022 |
""" |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1023 |
existing_rels = set(rdef.name for rdef in cls.__relations__) |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1024 |
# let relation types defined in cw.schemas.workflow carrying |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1025 |
# cardinality, constraints and other relation definition properties |
5379
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1026 |
etype = getattr(cls, 'name', cls.__name__) |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1027 |
if 'custom_workflow' not in existing_rels: |
5379
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1028 |
rdef = ybo.RelationDefinition(etype, 'custom_workflow', 'Workflow') |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1029 |
yams_add_relation(cls.__relations__, rdef) |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1030 |
if 'in_state' not in existing_rels: |
5379
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1031 |
rdef = ybo.RelationDefinition(etype, 'in_state', 'State', |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1032 |
description=in_state_descr) |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1033 |
yams_add_relation(cls.__relations__, rdef) |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2782
diff
changeset
|
1034 |
if 'wf_info_for' not in existing_rels: |
5379
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1035 |
rdef = ybo.RelationDefinition('TrInfo', 'wf_info_for', etype) |
c082dea0731b
[schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5378
diff
changeset
|
1036 |
yams_add_relation(cls.__relations__, rdef) |
1451 | 1037 |
|
629
59b6542f5729
provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
628
diff
changeset
|
1038 |
|
0 | 1039 |
# schema loading ############################################################## |
1040 |
||
1041 |
CONSTRAINTS['RQLConstraint'] = RQLConstraint |
|
1042 |
CONSTRAINTS['RQLUniqueConstraint'] = RQLUniqueConstraint |
|
1043 |
CONSTRAINTS['RQLVocabularyConstraint'] = RQLVocabularyConstraint |
|
3980
b17cf4a2e09e
this constraint is actually unusable in yams schema for cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3979
diff
changeset
|
1044 |
CONSTRAINTS.pop('MultipleStaticVocabularyConstraint', None) # don't want this in cw yams schema |
0 | 1045 |
PyFileReader.context.update(CONSTRAINTS) |
1046 |
||
1047 |
||
1048 |
class BootstrapSchemaLoader(SchemaLoader): |
|
1049 |
"""cubicweb specific schema loader, loading only schema necessary to read |
|
1050 |
the persistent schema |
|
1051 |
""" |
|
1052 |
schemacls = CubicWebSchema |
|
1053 |
||
1034
0356bbfb2f26
fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents:
1016
diff
changeset
|
1054 |
def load(self, config, path=(), **kwargs): |
0 | 1055 |
"""return a Schema instance from the schema definition read |
1056 |
from <directory> |
|
1057 |
""" |
|
1058 |
return super(BootstrapSchemaLoader, self).load( |
|
1034
0356bbfb2f26
fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents:
1016
diff
changeset
|
1059 |
path, config.appid, register_base_types=False, **kwargs) |
1451 | 1060 |
|
0 | 1061 |
def _load_definition_files(self, cubes=None): |
1062 |
# bootstraping, ignore cubes |
|
2735
39c942241b48
no need for lib_directory
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2730
diff
changeset
|
1063 |
filepath = join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'bootstrap.py') |
2142
098aa2075903
include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
1064 |
self.info('loading %s', filepath) |
098aa2075903
include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
1065 |
self.handle_file(filepath) |
1451 | 1066 |
|
0 | 1067 |
def unhandled_file(self, filepath): |
1068 |
"""called when a file without handler associated has been found""" |
|
1069 |
self.warning('ignoring file %r', filepath) |
|
1070 |
||
1071 |
||
1072 |
class CubicWebSchemaLoader(BootstrapSchemaLoader): |
|
1073 |
"""cubicweb specific schema loader, automatically adding metadata to the |
|
2476
1294a6bdf3bf
application -> instance where it makes sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2460
diff
changeset
|
1074 |
instance's schema |
0 | 1075 |
""" |
1076 |
||
1034
0356bbfb2f26
fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents:
1016
diff
changeset
|
1077 |
def load(self, config, **kwargs): |
0 | 1078 |
"""return a Schema instance from the schema definition read |
1079 |
from <directory> |
|
1080 |
""" |
|
1081 |
self.info('loading %s schemas', ', '.join(config.cubes())) |
|
2782
998f24dabd0d
compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2742
diff
changeset
|
1082 |
self.extrapath = {} |
998f24dabd0d
compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2742
diff
changeset
|
1083 |
for cubesdir in config.cubes_search_path(): |
998f24dabd0d
compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2742
diff
changeset
|
1084 |
if cubesdir != config.CUBES_DIR: |
998f24dabd0d
compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2742
diff
changeset
|
1085 |
self.extrapath[cubesdir] = 'cubes' |
372
a8a975a88368
check apphome is not None
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents:
0
diff
changeset
|
1086 |
if config.apphome: |
2598
a66fe74bd9fc
[R schema] dont give an iterator, it's a trap
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2596
diff
changeset
|
1087 |
path = tuple(reversed([config.apphome] + config.cubes_path())) |
372
a8a975a88368
check apphome is not None
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents:
0
diff
changeset
|
1088 |
else: |
2598
a66fe74bd9fc
[R schema] dont give an iterator, it's a trap
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2596
diff
changeset
|
1089 |
path = tuple(reversed(config.cubes_path())) |
2526
40e41eb34a7d
we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2476
diff
changeset
|
1090 |
try: |
40e41eb34a7d
we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2476
diff
changeset
|
1091 |
return super(CubicWebSchemaLoader, self).load(config, path=path, **kwargs) |
40e41eb34a7d
we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2476
diff
changeset
|
1092 |
finally: |
40e41eb34a7d
we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2476
diff
changeset
|
1093 |
# we've to cleanup modules imported from cubicweb.schemas as well |
2735
39c942241b48
no need for lib_directory
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2730
diff
changeset
|
1094 |
cleanup_sys_modules([join(cubicweb.CW_SOFTWARE_ROOT, 'schemas')]) |
0 | 1095 |
|
1096 |
def _load_definition_files(self, cubes): |
|
2741
148d0cea1fb5
[schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2736
diff
changeset
|
1097 |
for filepath in (join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'bootstrap.py'), |
148d0cea1fb5
[schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2736
diff
changeset
|
1098 |
join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'base.py'), |
148d0cea1fb5
[schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2736
diff
changeset
|
1099 |
join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'workflow.py'), |
148d0cea1fb5
[schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2736
diff
changeset
|
1100 |
join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'Bookmark.py')): |
0 | 1101 |
self.info('loading %s', filepath) |
1102 |
self.handle_file(filepath) |
|
1103 |
for cube in cubes: |
|
1104 |
for filepath in self.get_schema_files(cube): |
|
1105 |
self.info('loading %s', filepath) |
|
1106 |
self.handle_file(filepath) |
|
1107 |
||
1108 |
||
2459
d088d0ff48a1
move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2456
diff
changeset
|
1109 |
set_log_methods(CubicWebSchemaLoader, getLogger('cubicweb.schemaloader')) |
d088d0ff48a1
move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2456
diff
changeset
|
1110 |
set_log_methods(BootstrapSchemaLoader, getLogger('cubicweb.bootstrapschemaloader')) |
d088d0ff48a1
move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2456
diff
changeset
|
1111 |
set_log_methods(RQLExpression, getLogger('cubicweb.schema')) |
d088d0ff48a1
move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2456
diff
changeset
|
1112 |
|
0 | 1113 |
# _() is just there to add messages to the catalog, don't care about actual |
1114 |
# translation |
|
1115 |
PERM_USE_TEMPLATE_FORMAT = _('use_template_format') |
|
2459
d088d0ff48a1
move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2456
diff
changeset
|
1116 |
NEED_PERM_FORMATS = [_('text/cubicweb-page-template')] |
0 | 1117 |
|
2531
531ea4e7013e
[cleanup] nicer imports
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents:
2526
diff
changeset
|
1118 |
@monkeypatch(FormatConstraint) |
3347
428f95118556
fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3287
diff
changeset
|
1119 |
def vocabulary(self, entity=None, form=None): |
3401
f893f4f199fc
use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3369
diff
changeset
|
1120 |
cw = None |
3347
428f95118556
fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3287
diff
changeset
|
1121 |
if form is None and entity is not None: |
3401
f893f4f199fc
use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3369
diff
changeset
|
1122 |
cw = entity._cw |
3347
428f95118556
fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3287
diff
changeset
|
1123 |
elif form is not None: |
3401
f893f4f199fc
use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3369
diff
changeset
|
1124 |
cw = form._cw |
4757
5d937aeaa6fb
do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4755
diff
changeset
|
1125 |
if cw is not None: |
4835
13b0b96d7982
[repo] enhanced security handling: deprecates unsafe_execute, in favor of explicit read/write security control using the `enabled_security` context manager. Also code executed on the repository side is now unsafe by default.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4834
diff
changeset
|
1126 |
if hasattr(cw, 'write_security'): # test it's a session and not a request |
4757
5d937aeaa6fb
do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4755
diff
changeset
|
1127 |
# cw is a server session |
4835
13b0b96d7982
[repo] enhanced security handling: deprecates unsafe_execute, in favor of explicit read/write security control using the `enabled_security` context manager. Also code executed on the repository side is now unsafe by default.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4834
diff
changeset
|
1128 |
hasperm = not cw.write_security or \ |
4843
5f7363416765
fix hooks control method name + other litle cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4835
diff
changeset
|
1129 |
not cw.is_hook_category_activated('integrity') or \ |
4757
5d937aeaa6fb
do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4755
diff
changeset
|
1130 |
cw.user.has_permission(PERM_USE_TEMPLATE_FORMAT) |
5d937aeaa6fb
do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4755
diff
changeset
|
1131 |
else: |
5d937aeaa6fb
do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4755
diff
changeset
|
1132 |
hasperm = cw.user.has_permission(PERM_USE_TEMPLATE_FORMAT) |
5d937aeaa6fb
do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4755
diff
changeset
|
1133 |
if hasperm: |
5d937aeaa6fb
do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4755
diff
changeset
|
1134 |
return self.regular_formats + tuple(NEED_PERM_FORMATS) |
2459
d088d0ff48a1
move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2456
diff
changeset
|
1135 |
return self.regular_formats |
0 | 1136 |
|
1137 |
# XXX monkey patch PyFileReader.import_erschema until bw_normalize_etype is |
|
1138 |
# necessary |
|
1139 |
orig_import_erschema = PyFileReader.import_erschema |
|
1140 |
def bw_import_erschema(self, ertype, schemamod=None, instantiate=True): |
|
1141 |
return orig_import_erschema(self, bw_normalize_etype(ertype), schemamod, instantiate) |
|
1142 |
PyFileReader.import_erschema = bw_import_erschema |
|
1451 | 1143 |
|
0 | 1144 |
# XXX itou for some Statement methods |
1145 |
from rql import stmts |
|
1146 |
orig_get_etype = stmts.ScopeNode.get_etype |
|
1147 |
def bw_get_etype(self, name): |
|
1148 |
return orig_get_etype(self, bw_normalize_etype(name)) |
|
1149 |
stmts.ScopeNode.get_etype = bw_get_etype |
|
1150 |
||
1151 |
orig_add_main_variable_delete = stmts.Delete.add_main_variable |
|
1152 |
def bw_add_main_variable_delete(self, etype, vref): |
|
1153 |
return orig_add_main_variable_delete(self, bw_normalize_etype(etype), vref) |
|
1154 |
stmts.Delete.add_main_variable = bw_add_main_variable_delete |
|
1155 |
||
1156 |
orig_add_main_variable_insert = stmts.Insert.add_main_variable |
|
1157 |
def bw_add_main_variable_insert(self, etype, vref): |
|
1158 |
return orig_add_main_variable_insert(self, bw_normalize_etype(etype), vref) |
|
1159 |
stmts.Insert.add_main_variable = bw_add_main_variable_insert |
|
1160 |
||
1161 |
orig_set_statement_type = stmts.Select.set_statement_type |
|
1162 |
def bw_set_statement_type(self, etype): |
|
1163 |
return orig_set_statement_type(self, bw_normalize_etype(etype)) |
|
1164 |
stmts.Select.set_statement_type = bw_set_statement_type |
|
2736
c5048502409f
restore backward compat, still imported a lot
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2735
diff
changeset
|
1165 |
|
c5048502409f
restore backward compat, still imported a lot
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2735
diff
changeset
|
1166 |
# XXX deprecated |
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
1167 |
|
2736
c5048502409f
restore backward compat, still imported a lot
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2735
diff
changeset
|
1168 |
from yams.buildobjs import RichString |
4717
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
1169 |
from yams.constraints import StaticVocabularyConstraint |
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
1170 |
|
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
1171 |
RichString = class_moved(RichString) |
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
1172 |
|
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
1173 |
StaticVocabularyConstraint = class_moved(StaticVocabularyConstraint) |
535705688f4f
proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4702
diff
changeset
|
1174 |
FormatConstraint = class_moved(FormatConstraint) |
3978
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
1175 |
|
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
1176 |
PyFileReader.context['ERQLExpression'] = yobsolete(ERQLExpression) |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
1177 |
PyFileReader.context['RRQLExpression'] = yobsolete(RRQLExpression) |
2c95e3033f64
finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3968
diff
changeset
|
1178 |
PyFileReader.context['WorkflowableEntityType'] = WorkflowableEntityType |