prepare to merge with pyquarantine project

pyquarantine/action.py

@@ -0,0 +1,64 @@
+# pyquarantine 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.
+#
+# pyquarantine 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 pyquarantine.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+__all__ = ["Action"]
+
+from pyquarantine import modify, notify, storage
+from pyquarantine.conditions import Conditions
+
+
+class Action:
+    """Action to implement a pre-configured action to perform on e-mails."""
+    ACTION_TYPES = {
+        "add_header": modify.Modify,
+        "mod_header": modify.Modify,
+        "del_header": modify.Modify,
+        "add_disclaimer": modify.Modify,
+        "rewrite_links": modify.Modify,
+        "store": storage.Store,
+        "notify": notify.Notify,
+        "quarantine": storage.Quarantine}
+
+    def __init__(self, cfg, local_addrs, debug):
+        self.cfg = cfg
+
+        self.conditions = cfg["conditions"] if "conditions" in cfg else None
+        if self.conditions is not None:
+            self.conditions["name"] = f"{cfg['name']}: conditions"
+            self.conditions["loglevel"] = cfg["loglevel"]
+            self.conditions = Conditions(self.conditions, local_addrs, debug)
+
+        action_type = cfg["type"]
+        self.action = self.ACTION_TYPES[action_type](
+            cfg, local_addrs, debug)
+
+    def __str__(self):
+        cfg = []
+        for key in ["name", "loglevel", "pretend", "type"]:
+            value = self.cfg[key]
+            cfg.append(f"{key}={value}")
+        if self.conditions is not None:
+            cfg.append(f"conditions={self.conditions}")
+        cfg.append(f"action={self.action}")
+        return "Action(" + ", ".join(cfg) + ")"
+
+    def headersonly(self):
+        """Return the needs of this action."""
+        return self.action._headersonly
+
+    def execute(self, milter):
+        """Execute configured action."""
+        if self.conditions is None or \
+                self.conditions.match(milter):
+            return self.action.execute(milter)