Fix some bugs with integrated eviction

1. implement SET_LAST_EVICTION as an admin command, not a decree
2. expect a return value from Env.evictInactive and expose it via Env.evictionReport

lib/commands/admin-rpc.js

@@ -211,6 +211,21 @@ the server adds two pieces of information to the supplied decree:
     Decrees.write(Env, decree, cb);
 };
 
+// CryptPad_AsyncStore.rpc.send('ADMIN', ['SET_LAST_EVICTION', 0], console.log)
+var setLastEviction = function (Env, Server, cb, data, unsafeKey) {
+    var time = data && data[1];
+    if (typeof(time) !== 'number') {
+        return void cb('INVALID_ARGS');
+    }
+
+    Env.lastEviction = time;
+    cb();
+    Env.Log.info('LAST_EVICTION_TIME_SET', {
+        author: unsafeKey,
+        time: time,
+    });
+};
+
 // CryptPad_AsyncStore.rpc.send('ADMIN', ['INSTANCE_STATUS], console.log)
 var instanceStatus = function (Env, Server, cb) {
     cb(void 0, {
@@ -225,8 +240,8 @@ var instanceStatus = function (Env, Server, cb) {
         defaultStorageLimit: Env.defaultStorageLimit,
 
         lastEviction: Env.lastEviction,
-        // FIXME eviction is run in a worker and this isn't returned
-        //knownActiveAccounts: Env.knownActiveAccounts,
+        evictionReport: Env.evictionReport,
+
         disableIntegratedEviction: Env.disableIntegratedEviction,
         disableIntegratedTasks: Env.disableIntegratedTasks,
 
@@ -257,6 +272,7 @@ var commands = {
     ADMIN_DECREE: adminDecree,
     INSTANCE_STATUS: instanceStatus,
     GET_LIMITS: getLimits,
+    SET_LAST_EVICTION: setLastEviction,
 };
 
 Admin.command = function (Env, safeKey, data, _cb, Server) {

lib/decrees.js

@@ -112,9 +112,6 @@ commands.SET_PREMIUM_UPLOAD_SIZE = makeIntegerSetter('premiumUploadSize');
 // CryptPad_AsyncStore.rpc.send('ADMIN', [ 'ADMIN_DECREE', ['UPDATE_DEFAULT_STORAGE', [100 * 1024 * 1024]]], console.log)
 commands.UPDATE_DEFAULT_STORAGE = makeIntegerSetter('defaultStorageLimit');
 
-// CryptPad_AsyncStore.rpc.send('ADMIN', [ 'ADMIN_DECREE', ['SET_LAST_EVICTION', [0]]], console.log)
-commands.SET_LAST_EVICTION = makeIntegerSetter('lastEviction');
-
 // CryptPad_AsyncStore.rpc.send('ADMIN', [ 'ADMIN_DECREE', ['SET_INACTIVE_TIME', [90]]], console.log)
 commands.SET_INACTIVE_TIME = makeIntegerSetter('inactiveTime');
 

lib/env.js

@@ -92,7 +92,7 @@ module.exports.create = function (config) {
         disableIntegratedTasks: config.disableIntegratedTasks || false,
         disableIntegratedEviction: config.disableIntegratedEviction || false,
         lastEviction: +new Date(),
-        knownActiveAccounts: 0,
+        evictionReport: {},
     };
 
     (function () {

lib/eviction.js

@@ -49,6 +49,7 @@ module.exports = function (Env, cb) {
 
         // channelsArchived,
 
+        launchTime: +new Date(),
         // runningTime,
     };
 

lib/historyKeeper.js

@@ -191,13 +191,17 @@ module.exports.create = function (Env, cb) {
             // evict inactive data once per day
             if ((now - ONE_DAY) < Env.lastEviction) { return; }
             active = true;
-            Env.evictInactive(function (err) {
+            Env.evictInactive(function (err, report) {
                 if (err) {
                     // NO_INACTIVE_TIME
                     Log.error('EVICT_INACTIVE_MAIN_ERROR', err);
                 }
                 active = false;
                 Env.lastEviction = now;
+                if (report) {
+                    Log.info('EVICT_INACTIVE_REPORT', report);
+                }
+                Env.evictionReport = report || {};
             });
         }, 60 * 1000);
     }).nThen(function () {