Add lang for config (#991)

Adds a sourceview lang for fapolicyd config syntax.

Closes #939

fapolicy_analyzer/resources/sourceview/language-specs/fapolicyd-config.lang

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright Concurrent Technologies Corporation 2024
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+<language id="fapolicyd-config" name="File Access Policy Daemon Config" version="2.0" _section="Other">
+    <metadata>
+        <property name="globs">*.config</property>
+        <property name="line-comment-start">#</property>
+    </metadata>
+
+    <styles>
+        <style id="config-eq-sign" name="Separator"/>
+        <style id="config-key" name="Config key name"/>
+    </styles>
+
+    <definitions>
+        <context id="config-eq-sign" style-ref="config-eq-sign">
+            <match>=</match>
+        </context>
+
+        <context id="config-key" style-ref="config-key">
+            <suffix> =</suffix>
+            <keyword>permissive</keyword>
+            <keyword>nice_val</keyword>
+            <keyword>q_size</keyword>
+            <keyword>uid</keyword>
+            <keyword>gid</keyword>
+            <keyword>do_stat_report</keyword>
+            <keyword>detailed_report</keyword>
+            <keyword>db_max_size</keyword>
+            <keyword>subj_cache_size</keyword>
+            <keyword>obj_cache_size</keyword>
+            <keyword>watch_fs</keyword>
+            <keyword>trust</keyword>
+            <keyword>integrity</keyword>
+            <keyword>syslog_format</keyword>
+            <keyword>rpm_sha256_only</keyword>
+            <keyword>allow_filesystem_mark</keyword>
+        </context>
+
+        <context id="fapolicyd-config">
+            <include>
+                <context ref="config-eq-sign"/>
+                <context ref="config-key"/>
+                <context ref="def:shell-like-comment"/>
+            </include>
+        </context>
+    </definitions>
+</language>

fapolicy_analyzer/resources/sourceview/styles/fapolicyd.xml

@@ -71,4 +71,8 @@
     <!-- File markers -->
     <style name="fapolicyd-rules:marker" foreground="#AAAA00" bold="true" italic="true"/>
 
+    <!-- Config keys -->
+    <style name="fapolicyd-config:config-key" foreground="black" underline="true"/>
+    <style name="fapolicyd-config:config-eq-sign" bold="true"/>
+
 </style-scheme>

fapolicy_analyzer/ui/config/config_text_view.py

@@ -28,4 +28,4 @@ def on_config_changed(self, buffer):
         self.config_changed(self._get_text())
 
     def _get_view_lang_id(self) -> Optional[str]:
-        return None
+        return "fapolicyd-config"

fapolicy_analyzer/ui/editable_text_view.py

@@ -60,7 +60,7 @@ def _get_view_lang(self):
             try:
                 with resources.path(
                     "fapolicy_analyzer.resources.sourceview.language-specs",
-                    lang_id,
+                    f"{lang_id}.lang",
                 ) as path:
                     if (
                         os.path.dirname(path.as_posix())
@@ -74,11 +74,9 @@ def _get_view_lang(self):
                         )
             except Exception as ex:
                 logging.warning("Could not load the rules language file")
-                logging.debug(
-                    "Error loading GtkSource language file fapolicyd-rules.lang", ex
-                )
+                logging.debug(f"Error loading GtkSource language: {lang_id}", ex)
 
-            return lang_manager.get_language("fapolicyd-rules")
+            return lang_manager.get_language(lang_id)
 
     def _get_view_style(self):
         style_manager = GtkSource.StyleSchemeManager.get_default()

fapolicy_analyzer/ui/rules/rules_text_view.py

@@ -28,4 +28,4 @@ def on_rules_changed(self, buffer):
         self.rules_changed(self._get_text())
 
     def _get_view_lang_id(self) -> Optional[str]:
-        return "fapolicyd-rules.lang"
+        return "fapolicyd-rules"

news/991.added.md

@@ -0,0 +1 @@
+Added syntax highlighting to the fapolicyd config editor