[12.0][IMP] - Add check for substitution infinite loop

report_substitute/__manifest__.py

@@ -10,7 +10,7 @@
     'license': 'AGPL-3',
     'author': 'ACSONE SA/NV,'
               'Odoo Community Association (OCA)',
-    'website': 'https://github.com/acsone/reporting-engine',
+    'website': 'https://github.com/OCA/reporting-engine',
     'depends': ['base', 'mail'],
     'data': [
         'security/ir_actions_report_substitution_rule.xml',

report_substitute/models/ir_actions_report_substitution_rule.py

@@ -1,7 +1,8 @@
 # Copyright 2019 ACSONE SA/NV
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import fields, models
+from odoo import fields, models, api, _
+from odoo.exceptions import ValidationError
 
 
 class ActionsReportSubstitutionRule(models.Model):
@@ -24,5 +25,23 @@ class ActionsReportSubstitutionRule(models.Model):
         string="Substitution Report Action",
         required=True,
         ondelete="cascade",
-        domain="[('model', '=', model)]"
+        domain="[('model', '=', model)]",
+    )
+
+    @api.constrains('substitution_action_report_id', 'action_report_id')
+    def _check_substitution_infinite_loop(self):
+        def _check_infinite_loop(original_report, substitution_report):
+            if original_report == substitution_report:
+                raise ValidationError(_("Substitution infinite loop detected"))
+            for (
+                substitution_rule
+            ) in substitution_report.action_report_substitution_rule_ids:
+                _check_infinite_loop(
+                    original_report,
+                    substitution_rule.substitution_action_report_id,
+                )
+
+        for rec in self:
+            _check_infinite_loop(
+                rec.action_report_id, rec.substitution_action_report_id
             )

report_substitute/tests/test_report_substitute.py

@@ -2,6 +2,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 from odoo.tests.common import TransactionCase
+from odoo.exceptions import ValidationError
 
 
 class TestReportSubstitute(TransactionCase):
@@ -64,3 +65,16 @@ class TestReportSubstitute(TransactionCase):
             res['report_name'],
             self.substitution_rule.substitution_action_report_id.report_name,
         )
+
+    def test_substitution_infinite_loop(self):
+        with self.assertRaises(ValidationError):
+            self.env['ir.actions.report.substitution.rule'].create(
+                {
+                    'action_report_id': self.env.ref(
+                        'report_substitute.substitution_report_print'
+                    ).id,
+                    'substitution_action_report_id': self.env.ref(
+                        'base.ir_module_reference_print'
+                    ).id,
+                }
+            )