Some fixes for emergency access (#4715)

- Add missing `Headers` parameter for some functions
   This allowed any request from allowing these endpoints by not validating the user correctly.
 - Changed the functions to retreive the emergency access record by
   using the user uuid which calls the endpoint, instead of validating afterwards.
   This is more secure and prevents the need of an if check.

src/db/models/emergency_access.rs

@@ -238,15 +238,6 @@ impl EmergencyAccess {
         }}
     }
 
-    pub async fn find_by_uuid(uuid: &str, conn: &mut DbConn) -> Option<Self> {
-        db_run! { conn: {
-            emergency_access::table
-                .filter(emergency_access::uuid.eq(uuid))
-                .first::<EmergencyAccessDb>(conn)
-                .ok().from_db()
-        }}
-    }
-
     pub async fn find_by_grantor_uuid_and_grantee_uuid_or_email(
         grantor_uuid: &str,
         grantee_uuid: &str,
@@ -281,6 +272,26 @@ impl EmergencyAccess {
         }}
     }
 
+    pub async fn find_by_uuid_and_grantee_uuid(uuid: &str, grantee_uuid: &str, conn: &mut DbConn) -> Option<Self> {
+        db_run! { conn: {
+            emergency_access::table
+                .filter(emergency_access::uuid.eq(uuid))
+                .filter(emergency_access::grantee_uuid.eq(grantee_uuid))
+                .first::<EmergencyAccessDb>(conn)
+                .ok().from_db()
+        }}
+    }
+
+    pub async fn find_by_uuid_and_grantee_email(uuid: &str, grantee_email: &str, conn: &mut DbConn) -> Option<Self> {
+        db_run! { conn: {
+            emergency_access::table
+                .filter(emergency_access::uuid.eq(uuid))
+                .filter(emergency_access::email.eq(grantee_email))
+                .first::<EmergencyAccessDb>(conn)
+                .ok().from_db()
+        }}
+    }
+
     pub async fn find_all_by_grantee_uuid(grantee_uuid: &str, conn: &mut DbConn) -> Vec<Self> {
         db_run! { conn: {
             emergency_access::table