From 5a47c754273e3d7c7c7a984d9966a88f9f8196ac Mon Sep 17 00:00:00 2001
From: timokoesters <timo@koesters.xyz>
Date: Mon, 1 Jun 2020 20:58:49 +0200
Subject: [PATCH] fix: make redactions permanent

---
 src/client_server.rs  |  4 ++--
 src/database/rooms.rs | 25 ++++++++++++++++++++-----
 src/pdu.rs            |  6 ++++++
 3 files changed, 28 insertions(+), 7 deletions(-)

diff --git a/src/client_server.rs b/src/client_server.rs
index 3635bf3f..e56a7c54 100644
--- a/src/client_server.rs
+++ b/src/client_server.rs
@@ -2260,12 +2260,12 @@ pub fn get_message_events_route(
             .map(|pdu| pdu.to_room_event())
             .collect::<Vec<_>>();
 
-        MatrixResult(Ok(dbg!(get_message_events::Response {
+        MatrixResult(Ok(get_message_events::Response {
             start: Some(body.from.clone()),
             end: prev_batch,
             chunk: room_events,
             state: Vec::new(),
-        })))
+        }))
     } else {
         MatrixResult(Err(Error {
             kind: ErrorKind::Unknown,
diff --git a/src/database/rooms.rs b/src/database/rooms.rs
index 1c25c259..5b9f1e2c 100644
--- a/src/database/rooms.rs
+++ b/src/database/rooms.rs
@@ -8,6 +8,7 @@ use ruma_events::{
     room::{
         join_rules, member,
         power_levels::{self, PowerLevelsEventContent},
+        redaction,
     },
     EventJson, EventType,
 };
@@ -207,7 +208,6 @@ impl Rooms {
         globals: &super::globals::Globals,
     ) -> Result<EventId> {
         // TODO: Make sure this isn't called twice in parallel
-
         let prev_events = self.get_pdu_leaves(&room_id)?;
 
         // Is the event authorized?
@@ -404,7 +404,6 @@ impl Rooms {
                         authorized
                     }
                     EventType::RoomCreate => prev_events.is_empty(),
-
                     // Not allow any of the following events if the sender is not joined.
                     _ if sender_membership != member::MembershipState::Join => false,
 
@@ -450,15 +449,15 @@ impl Rooms {
             origin_server_ts: utils::millis_since_unix_epoch()
                 .try_into()
                 .expect("this only fails many years in the future"),
-            kind: event_type,
-            content,
+            kind: event_type.clone(),
+            content: content.clone(),
             state_key,
             prev_events,
             depth: depth
                 .try_into()
                 .expect("depth can overflow and should be deprecated..."),
             auth_events: Vec::new(),
-            redacts,
+            redacts: redacts.clone(),
             unsigned,
             hashes: ruma_federation_api::EventHash {
                 sha256: "aaa".to_owned(),
@@ -506,6 +505,22 @@ impl Rooms {
             self.roomstateid_pdu.insert(key, &*pdu_json.to_string())?;
         }
 
+        match event_type {
+            EventType::RoomRedaction => {
+                if let Some(redact_id) = &redacts {
+                    // TODO: Reason
+                    let _reason = serde_json::from_value::<
+                        EventJson<redaction::RedactionEventContent>,
+                    >(content)?
+                    .deserialize()?
+                    .reason;
+
+                    self.redact_pdu(&redact_id)?;
+                }
+            }
+            _ => {}
+        }
+
         self.edus.room_read_set(&room_id, &sender, index)?;
 
         Ok(pdu.event_id)
diff --git a/src/pdu.rs b/src/pdu.rs
index 3e1ac0ac..12496425 100644
--- a/src/pdu.rs
+++ b/src/pdu.rs
@@ -7,6 +7,7 @@ use ruma_events::{
 use ruma_federation_api::EventHash;
 use ruma_identifiers::{EventId, RoomId, UserId};
 use serde::{Deserialize, Serialize};
+use serde_json::json;
 use std::collections::HashMap;
 
 #[derive(Deserialize, Serialize)]
@@ -62,6 +63,11 @@ impl PduEvent {
             }
         }
 
+        self.unsigned.insert(
+            "redacted_because".to_owned(),
+            json!({"content": {}, "type": "m.room.redaction"}),
+        );
+
         self.content = new_content.into();
     }