live-invalidate about cache

1 files changed, 12 insertions, 1 deletions

diff --git a/lib/app.js b/lib/app.js
index c4683d7..ee2ec39 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -31,7 +31,8 @@ function App(sbot, config) {
 
   sbot.get = memo({cache: lru(100)}, sbot.get)
   this.getMsg = memo({cache: lru(100)}, getMsgWithValue, sbot)
-  this.getAbout = memo({cache: lru(100)}, getAbout.bind(this), sbot, sbot.id)
+  this.getAbout = memo({cache: this.aboutCache = lru(100)},
+    getAbout.bind(this), sbot, sbot.id)
   this.unboxContent = memo({cache: lru(100)}, sbot.private.unbox)
   this.reverseNameCache = lru(100)
 
@@ -47,6 +48,16 @@ App.prototype.go = function () {
   }).listen(self.port, self.host, function () {
     self.log('Listening on http://' + self.host + ':' + self.port)
   })
+
+  // invalidate cached About info when new About messages come in
+  pull(
+    self.sbot.links({rel: 'about', old: false, values: true}),
+    pull.drain(function (link) {
+      self.aboutCache.remove(link.dest)
+    }, function (err) {
+      if (err) self.error('about:', err)
+    })
+  )
 }
 
 var logPrefix = '[' + pkg.name + ']'