Support outbound call

did_router/src/database.rs

@@ -127,3 +127,32 @@ pub fn list_did() ->Result<Vec<Did>, Error> {
 
     Ok(res)
 }
+
+pub fn from_pbx(ipaddr: &str) -> Result<bool, Error> {
+    use crate::schema::dids::dsl::*;
+
+    let pattern = format!("%{}%", ipaddr);
+    let mut conn = connect();
+    let count =  dids
+        .filter(target.is_not_null().and(target.ilike(&pattern)))
+        .count()
+        .get_result::<i64>(&mut conn)?;
+
+    Ok(count > 0)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn validate_from_pbx() {
+        assert_eq!(Ok(true), from_pbx("172.16.0.213"));
+        assert_eq!(Ok(true), from_pbx("172.16.0.215"));
+    }
+
+    #[test]
+    fn validate_not_from_pbx() {
+        assert_eq!(Ok(false), from_pbx("192.168.1.1"));
+    }
+}