fix(launcher): bootstrap release state and signed manifest

Launcher/main.cpp

@@ -12,7 +12,9 @@
 #include "../Common/TicketHelper.h"
 #include "../Common/DeviceIdentityHelper.h"
 #include "../Common/IntegrityHelper.h"
+#include "../Common/ManifestBootstrapPolicy.h"
 #include "../Common/TranslationHelper.h"
+#include "../Updater/UpdaterLogic.h"
 #include <QFile>
 #include <QFileDialog>
 #include <QDir>
@@ -198,7 +200,47 @@ int main(int argc, char *argv[])
     const QString mainAppPath = QDir(appDir).filePath(mainExecutable);
     const QString updaterPath = QDir(appDir).filePath(updaterExecutable);
     IntegrityHelper integrity(config.installRoot());
-    if (!integrity.verifyInstalledVersion(appId, channel, currentVersion))
+    bool integrityVerified = integrity.verifyInstalledVersion(
+        appId, channel, currentVersion);
+    QString integrityError = integrity.errorString();
+    const UpdateClient::ManifestBootstrapAction bootstrapAction =
+        UpdateClient::manifestBootstrapAction(
+            integrity.isManifestCacheMissing(), networkOk, needUpdate,
+            targetVersionId);
+    if (!integrityVerified
+        && bootstrapAction
+            == UpdateClient::ManifestBootstrapAction::FetchCurrentManifest)
+    {
+        UpdaterLogic manifestLogic;
+        manifestLogic.getManifest(
+            appId, channel, currentVersion, targetVersionId);
+        const QString cacheDirectory = QDir(config.updateRoot()).filePath(
+            QStringLiteral("manifest_cache"));
+        if (manifestLogic.verifyManifestSignature()
+            && manifestLogic.saveManifestCache(cacheDirectory))
+        {
+            integrityVerified = integrity.verifyInstalledVersion(
+                appId, channel, currentVersion);
+            integrityError = integrity.errorString();
+        }
+        else
+        {
+            integrityError = QCoreApplication::translate(
+                "Launcher",
+                "The signed manifest for version %1 could not be fetched or cached.")
+                                 .arg(currentVersion);
+        }
+    }
+    else if (!integrityVerified
+             && bootstrapAction
+                 == UpdateClient::ManifestBootstrapAction::CurrentVersionNotPublished)
+    {
+        integrityError = QCoreApplication::translate(
+            "Launcher",
+            "Version %1 is not published on the update server. Publish this exact installed build before distribution so its signed manifest can be verified.")
+                             .arg(currentVersion);
+    }
+    if (!integrityVerified)
     {
         progress.close();
         QMessageBox::critical(
@@ -207,7 +249,7 @@ int main(int argc, char *argv[])
             QCoreApplication::translate(
                 "Launcher",
                 "Application files failed signed manifest verification:\n%1")
-                .arg(integrity.errorString()));
+                .arg(integrityError));
         return -1;
     }
     const auto importOfflinePackage = [&]()