From 1d9b324d3ef3067df8834b9eacedfd49b8b86bb3 Mon Sep 17 00:00:00 2001
From: ed <s@ocv.me>
Date: Thu, 18 Aug 2022 01:02:06 +0200
Subject: [PATCH] explain w/a wasm leaks in workers (chrome bug)

---
 copyparty/web/browser.js |  2 ++
 copyparty/web/up2k.js    | 12 ++++++++++++
 copyparty/web/w.hash.js  |  1 +
 3 files changed, 15 insertions(+)

diff --git a/copyparty/web/browser.js b/copyparty/web/browser.js
index 42fb9d28..062bc92f 100644
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
@@ -318,6 +318,7 @@ var Ls = {
 		"u_ehssrch": "server rejected the request to perform search",
 		"u_ehsinit": "server rejected the request to initiate upload",
 		"u_ehsdf": "server ran out of disk space!\n\nwill keep retrying, in case someone\nfrees up enough space to continue",
+		"u_emtleak": "it looks like your webbrowser may have a memory leak;\nplease try the following:\n<ul><li>hit <code>F5</code> to refresh the page</li><li>then disable the &nbsp;<code>mt</code>&nbsp; button in the &nbsp;<code>⚙️ settings</code></li><li>and try that upload again</li></ul>Uploads will be a bit slower, but oh well.\nSorry for the trouble!",
 		"u_s404": "not found on server",
 		"u_expl": "explain",
 		"u_tu": '<p class="warn">WARNING: turbo enabled, <span>&nbsp;client may not detect and resume incomplete uploads; see turbo-button tooltip</span></p>',
@@ -656,6 +657,7 @@ var Ls = {
 		"u_ehssrch": "server nektet forespørselen om å utføre søk",
 		"u_ehsinit": "server nektet forespørselen om å begynne en ny opplastning",
 		"u_ehsdf": "serveren er full!\n\nprøver igjen regelmessig,\ni tilfelle noen rydder litt...",
+		"u_emtleak": "uff, det er mulig at nettleseren din har en minnelekkasje...\nForeslår at du prøver følgende:\n<ul><li>trykk F5 for å laste siden på nytt</li><li>så skru av &nbsp;<code>mt</code>&nbsp; bryteren under &nbsp;<code>⚙️ innstillinger</code></li><li>og forsøk den samme opplastningen igjen</li></ul>Opplastning vil gå litt tregere, men det får så være.\nBeklager bryderiet!",
 		"u_s404": "ikke funnet på serveren",
 		"u_expl": "forklar",
 		"u_tu": '<p class="warn">ADVARSEL: turbo er på, <span>&nbsp;avbrutte opplastninger vil muligens ikke oppdages og gjenopptas; hold musepekeren over turbo-knappen for mer info</span></p>',
diff --git a/copyparty/web/up2k.js b/copyparty/web/up2k.js
index afd851a5..6e7ee281 100644
--- a/copyparty/web/up2k.js
+++ b/copyparty/web/up2k.js
@@ -847,6 +847,7 @@ function up2k_init(subtle) {
         },
         "car": 0,
         "slow_io": null,
+        "oserr": false,
         "modn": 0,
         "modv": 0,
         "mod0": null
@@ -1365,6 +1366,14 @@ function up2k_init(subtle) {
             etaskip = 0;
     }
 
+    function got_oserr() {
+        if (!hws.length || !uc.hashw || st.oserr)
+            return;
+
+        st.oserr = true;
+        modal.alert(L.u_emtleak);
+    }
+
     /////
     ////
     ///   actuator
@@ -1723,6 +1732,7 @@ function up2k_init(subtle) {
                     pvis.seth(t.n, 2, err + ' @ ' + car);
                     console.log('OS-error', reader.error, '@', car);
                     handled = true;
+                    got_oserr();
                 }
 
                 if (handled) {
@@ -1841,6 +1851,8 @@ function up2k_init(subtle) {
                 pvis.seth(t.n, 1, d[1]);
                 pvis.seth(t.n, 2, d[2]);
                 console.log(d[1], d[2]);
+                if (d[1] == 'OS-error')
+                    got_oserr();
 
                 pvis.move(t.n, 'ng');
                 apop(st.busy.hash, t);
diff --git a/copyparty/web/w.hash.js b/copyparty/web/w.hash.js
index f0ab8e44..bf1d561a 100644
--- a/copyparty/web/w.hash.js
+++ b/copyparty/web/w.hash.js
@@ -48,6 +48,7 @@ onmessage = (d) => {
         }
     };
     reader.onerror = function () {
+        busy = false;
         var err = reader.error + '';
 
         if (err.indexOf('NotReadableError') !== -1 || // win10-chrome defender