From 488ec93ecebb02d78f22c004f3b3f73d46afdd33 Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Tue, 20 Oct 2020 17:07:55 +0530
Subject: [PATCH] allow expert admins to get and clear cached channel indices

---
 lib/commands/admin-rpc.js | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/lib/commands/admin-rpc.js b/lib/commands/admin-rpc.js
index e67f75f6c..b7c5dfa52 100644
--- a/lib/commands/admin-rpc.js
+++ b/lib/commands/admin-rpc.js
@@ -175,6 +175,24 @@ var restoreArchivedDocument = function (Env, Server, cb) {
     cb("NOT_IMPLEMENTED");
 };
 
+// CryptPad_AsyncStore.rpc.send('ADMIN', ['CLEAR_CHANNEL_INDEX', documentID], console.log)
+var clearChannelIndex = function (Env, Server, cb, data) {
+    var id = Array.isArray(data) && data[1];
+    if (typeof(id) !== 'string' || id.length < 32) { return void cb("EINVAL"); }
+    delete Env.channel_cache[id];
+    cb();
+};
+
+// CryptPad_AsyncStore.rpc.send('ADMIN', ['GET_CHANNEL_INDEX', documentID], console.log)
+var getChannelIndex = function (Env, Server, cb, data) {
+    var id = Array.isArray(data) && data[1];
+    if (typeof(id) !== 'string' || id.length < 32) { return void cb("EINVAL"); }
+
+    var index = Util.find(Env, ['channel_cache', id]);
+    if (!index) { return void cb("ENOENT"); }
+    cb(void 0, index);
+};
+
 // CryptPad_AsyncStore.rpc.send('ADMIN', [ 'ADMIN_DECREE', ['RESTRICT_REGISTRATION', [true]]], console.log)
 var adminDecree = function (Env, Server, cb, data, unsafeKey) {
     var value = data[1];
@@ -269,6 +287,9 @@ var commands = {
     ARCHIVE_DOCUMENT: archiveDocument,
     RESTORE_ARCHIVED_DOCUMENT: restoreArchivedDocument,
 
+    CLEAR_CHANNEL_INDEX: clearChannelIndex,
+    GET_CHANNEL_INDEX: getChannelIndex,
+
     ADMIN_DECREE: adminDecree,
     INSTANCE_STATUS: instanceStatus,
     GET_LIMITS: getLimits,