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# Copyright 2016, Tresys Technology, LLC
#
# SPDX-License-Identifier: LGPL-2.1-only
#
#
from PyQt6 import QtCore
import setools
from .modelroles import ModelRoles
from .table import SEToolsTableModel
from .. import details
__all__ = ("MLSRuleTable",)
class MLSRuleTable(SEToolsTableModel[setools.MLSRule]):
"""A table-based model for MLS rules."""
headers = ["Rule Type", "Source", "Target", "Object Class", "Default Range"]
def data(self, index: QtCore.QModelIndex, role: int = ModelRoles.DisplayRole):
if not self.item_list or not index.isValid():
return None
row = index.row()
col = index.column()
rule = self.item_list[row]
match role:
case ModelRoles.DisplayRole:
match col:
case 0:
return rule.ruletype.name
case 1:
return rule.source.name
case 2:
return rule.target.name
case 3:
return rule.tclass.name
case 4:
return str(rule.default)
case ModelRoles.ContextMenuRole:
match col:
case 1:
return (details.type_or_attr_detail_action(rule.source), )
case 2:
return (details.type_or_attr_detail_action(rule.target), )
case 3:
return (details.objclass_detail_action(rule.tclass), )
case ModelRoles.ToolTipRole:
match col:
case 1:
return details.type_or_attr_tooltip(rule.source)
case 2:
return details.type_or_attr_tooltip(rule.target)
case 3:
return details.objclass_tooltip(rule.tclass)
case ModelRoles.WhatsThisRole:
match col:
case 0:
column_whatsthis = \
f"""
<p>The Rule Type column is the type of the rule; it is one of:</p>
<ul>
{"".join(f"<li>{t.name}</li>" for t in setools.MLSRuletype)}
</ul>
"""
case 1:
column_whatsthis = \
"""
<p>This is the source type or type attribute (subject) in the rule.</p>
"""
case 2:
column_whatsthis = \
"""
<p>This is the target type or type attribute (object) in the rule.</p>
"""
case 3:
column_whatsthis = "<p>This is the object class of the rule.</p>"
case 4:
column_whatsthis = \
"""
<p>Default Range: This the the default range specified in the rule.</p>
"""
case _:
column_whatsthis = ""
return \
f"""
<b><p>Table Representation of Multi-Level Security Rules</p></b>
<p>Each part of the rule is represented as a column in the table.</p>
{column_whatsthis}
"""
return super().data(index, role)
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