Show error if debug log upload fails

_locales/en/messages.json

@@ -356,6 +356,10 @@
     "debugLogExplanation": {
       "message": "This log will be posted publicly online for contributors to view. You may examine and edit it before submitting."
     },
+    "debugLogError": {
+      "message":
+        "Something went wrong with the upload! Please consider manually adding your log to the bug you file."
+    },
     "reportIssue": {
       "message": "Report an issue",
       "description": "Link to open the issue tracker"

js/modules/debuglogs.js

@@ -14,11 +14,18 @@ const USER_AGENT = `Signal Desktop ${VERSION}`;
 // https://github.com/sindresorhus/got/pull/466
 const submitFormData = (form, url) =>
   new Promise((resolve, reject) => {
-    form.submit(url, error => {
+    form.submit(url, (error, response) => {
       if (error) {
         return reject(error);
       }
 
+      const { statusCode } = response;
+      if (statusCode !== 204) {
+        return reject(
+          new Error(`Failed to upload to S3, got status ${statusCode}`)
+        );
+      }
+
       return resolve();
     });
   });

js/views/debug_log_view.js

@@ -55,6 +55,7 @@
       this.$('.buttons, textarea').remove();
       this.$('.result').addClass('loading');
 
+      try {
         const publishedLogURL = await window.log.publish(text);
         const view = new Whisper.DebugLogLinkView({
           url: publishedLogURL,
@@ -65,6 +66,14 @@
         this.$('.link')
           .focus()
           .select();
+      } catch (error) {
+        console.log(
+          'DebugLogView error:',
+          error && error.stack ? error.stack : error
+        );
+        this.$('.loading').removeClass('loading');
+        this.$('.result').text(i18n('debugLogError'));
+      }
     },
   });
 })();