SL-16831 Viewer stalls for 10 seconds before displaying a login failure

# Conflicts:
#	indra/newview/llstartup.cpp

3 files changed, 56 insertions, 13 deletions

diff --git a/indra/newview/lllogininstance.cpp b/indra/newview/lllogininstance.cpp
index 523d39da58..267f1d03ea 100644
--- a/indra/newview/lllogininstance.cpp
+++ b/indra/newview/lllogininstance.cpp
@@ -280,6 +280,11 @@ void LLLoginInstance::constructAuthParams(LLPointer<LLCredential> user_credentia
 	mRequestData["params"] = request_params;
 	mRequestData["options"] = requested_options;
 	mRequestData["http_params"] = http_params;
+#if LL_RELEASE_FOR_DOWNLOAD
+    mRequestData["wait_for_updater"] = !gSavedSettings.getBOOL("CmdLineSkipUpdater") && !LLAppViewer::instance()->isUpdaterMissing();
+#else
+    mRequestData["wait_for_updater"] = false;
+#endif
 }
 
 bool LLLoginInstance::handleLoginEvent(const LLSD& event)
diff --git a/indra/newview/llstartup.cpp b/indra/newview/llstartup.cpp
index e7a1622332..3f825e4e43 100644
--- a/indra/newview/llstartup.cpp
+++ b/indra/newview/llstartup.cpp
@@ -2354,8 +2354,31 @@ void show_release_notes_if_required()
         && gSavedSettings.getBOOL("UpdaterShowReleaseNotes")
         && !gSavedSettings.getBOOL("FirstLoginThisInstall"))
     {
-        LLSD info(LLAppViewer::instance()->getViewerInfo());
-        LLWeb::loadURLInternal(info["VIEWER_RELEASE_NOTES_URL"]);
+
+#if LL_RELEASE_FOR_DOWNLOAD
+        if (!gSavedSettings.getBOOL("CmdLineSkipUpdater")
+            && !LLAppViewer::instance()->isUpdaterMissing())
+        {
+            // Instantiate a "relnotes" listener which assumes any arriving event
+            // is the release notes URL string. Since "relnotes" is an
+            // LLEventMailDrop, this listener will be invoked whether or not the
+            // URL has already been posted. If so, it will fire immediately;
+            // otherwise it will fire whenever the URL is (later) posted. Either
+            // way, it will display the release notes as soon as the URL becomes
+            // available.
+            LLEventPumps::instance().obtain("relnotes").listen(
+                "showrelnotes",
+                [](const LLSD& url) {
+                LLWeb::loadURLInternal(url.asString());
+                return false;
+            });
+        }
+        else
+#endif // LL_RELEASE_FOR_DOWNLOAD
+        {
+            LLSD info(LLAppViewer::instance()->getViewerInfo());
+            LLWeb::loadURLInternal(info["VIEWER_RELEASE_NOTES_URL"]);
+        }
         release_notes_shown = true;
     }
 }
diff --git a/indra/viewer_components/login/lllogin.cpp b/indra/viewer_components/login/lllogin.cpp
index 168880dc12..5d50d1e182 100644
--- a/indra/viewer_components/login/lllogin.cpp
+++ b/indra/viewer_components/login/lllogin.cpp
@@ -251,20 +251,35 @@ void LLLogin::Impl::loginCoro(std::string uri, LLSD login_params)
                 // Since sSyncPoint is an LLEventMailDrop, we DEFINITELY want to
                 // consume the posted event.
                 LLCoros::OverrideConsuming oc(true);
-                // Timeout should produce the isUndefined() object passed here.
-                LL_DEBUGS("LLLogin") << "Login failure, waiting for sync from updater" << LL_ENDL;
-                LLSD updater = llcoro::suspendUntilEventOnWithTimeout(sSyncPoint, 10, LLSD());
-                if (updater.isUndefined())
-                {
-                    LL_WARNS("LLLogin") << "Failed to hear from updater, proceeding with fail.login"
-                                        << LL_ENDL;
-                }
-                else
+                LLSD responses(mAuthResponse["responses"]);
+                LLSD updater;
+
+                if (printable_params["wait_for_updater"].asBoolean())
                 {
-                    LL_DEBUGS("LLLogin") << "Got responses from updater and login.cgi" << LL_ENDL;
+                    std::string reason_response = responses["data"]["reason"].asString();
+                    // Timeout should produce the isUndefined() object passed here.
+                    if (reason_response == "update")
+                    {
+                        LL_INFOS("LLLogin") << "Login failure, waiting for sync from updater" << LL_ENDL;
+                        updater = llcoro::suspendUntilEventOnWithTimeout(sSyncPoint, 10, LLSD());
+                    }
+                    else
+                    {
+                        LL_DEBUGS("LLLogin") << "Login failure, waiting for sync from updater" << LL_ENDL;
+                        updater = llcoro::suspendUntilEventOnWithTimeout(sSyncPoint, 3, LLSD());
+                    }
+                    if (updater.isUndefined())
+                    {
+                        LL_WARNS("LLLogin") << "Failed to hear from updater, proceeding with fail.login"
+                                            << LL_ENDL;
+                    }
+                    else
+                    {
+                        LL_DEBUGS("LLLogin") << "Got responses from updater and login.cgi" << LL_ENDL;
+                    }
                 }
+
                 // Let the fail.login handler deal with empty updater response.
-                LLSD responses(mAuthResponse["responses"]);
                 responses["updater"] = updater;
                 sendProgressEvent("offline", "fail.login", responses);
             }