feat: allow 'all' for policy source and destination zones

backend/app/models.py

@@ -72,16 +72,16 @@ class Policy(Base):
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True)
     config_id: Mapped[int] = mapped_column(Integer, ForeignKey("configs.id"), nullable=False)
-    src_zone_id: Mapped[int] = mapped_column(Integer, ForeignKey("zones.id"), nullable=False)
-    dst_zone_id: Mapped[int] = mapped_column(Integer, ForeignKey("zones.id"), nullable=False)
+    src_zone_id: Mapped[int | None] = mapped_column(Integer, ForeignKey("zones.id"), nullable=True)
+    dst_zone_id: Mapped[int | None] = mapped_column(Integer, ForeignKey("zones.id"), nullable=True)
     policy: Mapped[str] = mapped_column(String(16), nullable=False)
     log_level: Mapped[str] = mapped_column(String(16), default="")
     comment: Mapped[str] = mapped_column(Text, default="")
     position: Mapped[int] = mapped_column(Integer, default=0)
 
     config: Mapped["Config"] = relationship("Config", back_populates="policies")
-    src_zone: Mapped["Zone"] = relationship("Zone", foreign_keys=[src_zone_id])
-    dst_zone: Mapped["Zone"] = relationship("Zone", foreign_keys=[dst_zone_id])
+    src_zone: Mapped["Zone | None"] = relationship("Zone", foreign_keys=[src_zone_id])
+    dst_zone: Mapped["Zone | None"] = relationship("Zone", foreign_keys=[dst_zone_id])
 
 
 class Rule(Base):

backend/app/schemas.py

@@ -89,8 +89,8 @@ class InterfaceOut(BaseModel):
 
 # --- Policy ---
 class PolicyCreate(BaseModel):
-    src_zone_id: int
-    dst_zone_id: int
+    src_zone_id: Optional[int] = None
+    dst_zone_id: Optional[int] = None
     policy: str
     log_level: str = ""
     comment: str = ""
@@ -109,8 +109,8 @@ class PolicyUpdate(BaseModel):
 class PolicyOut(BaseModel):
     id: int
     config_id: int
-    src_zone_id: int
-    dst_zone_id: int
+    src_zone_id: Optional[int]
+    dst_zone_id: Optional[int]
     policy: str
     log_level: str
     comment: str

backend/app/shorewall_generator.py

@@ -35,7 +35,9 @@ class ShorewallGenerator:
     def policy(self) -> str:
         lines = [self._header("policy"), "#SOURCE".ljust(16) + "DEST".ljust(16) + "POLICY".ljust(16) + "LOG LEVEL\n"]
         for p in sorted(self._config.policies, key=lambda x: x.position):
-            lines.append(self._col(p.src_zone.name, p.dst_zone.name, p.policy, p.log_level or "-"))
+            src = p.src_zone.name if p.src_zone else "all"
+            dst = p.dst_zone.name if p.dst_zone else "all"
+            lines.append(self._col(src, dst, p.policy, p.log_level or "-"))
         return "".join(lines)
 
     def rules(self) -> str: