From ba0e08e2d54a019197d998a47a459e1e9c512613 Mon Sep 17 00:00:00 2001
From: pablomendezroyo <mendez4a@gmail.com>
Date: Tue, 5 Nov 2024 15:29:34 +0100
Subject: [PATCH] ensure requirements in `packageInstall` and not only on
 `fetchDnpRequest`

---
 .../installer/src/calls/packageInstall.ts     |  4 +-
 .../src/installer/checkInstallRequirements.ts | 60 +++++++++++++++++++
 packages/installer/src/installer/index.ts     |  1 +
 3 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 packages/installer/src/installer/checkInstallRequirements.ts

diff --git a/packages/installer/src/calls/packageInstall.ts b/packages/installer/src/calls/packageInstall.ts
index bd99fe9f7..944fe4fcb 100644
--- a/packages/installer/src/calls/packageInstall.ts
+++ b/packages/installer/src/calls/packageInstall.ts
@@ -10,7 +10,8 @@ import {
   rollbackPackages,
   writeAndValidateFiles,
   postInstallClean,
-  afterInstall
+  afterInstall,
+  checkInstallRequirements
 } from "../installer/index.js";
 import { logs, getLogUi, logUiClear } from "@dappnode/logger";
 import { Routes } from "@dappnode/types";
@@ -53,6 +54,7 @@ export async function packageInstall(
       if (!release.signedSafe && !options.BYPASS_SIGNED_RESTRICTION) {
         throw Error(`Package ${release.dnpName} is from untrusted origin and is not signed`);
       }
+      if (!release.isCore) await checkInstallRequirements({ manifest: release.manifest });
     }
 
     // Gather all data necessary for the install
diff --git a/packages/installer/src/installer/checkInstallRequirements.ts b/packages/installer/src/installer/checkInstallRequirements.ts
new file mode 100644
index 000000000..7e332bdde
--- /dev/null
+++ b/packages/installer/src/installer/checkInstallRequirements.ts
@@ -0,0 +1,60 @@
+import { listPackages, getDockerVersion } from "@dappnode/dockerapi";
+import { params } from "@dappnode/params";
+import { Manifest, InstalledPackageData } from "@dappnode/types";
+import { valid, gt } from "semver";
+
+/**
+ * Get the install requirements and throw an error if they are not met
+ */
+export async function checkInstallRequirements({ manifest }: { manifest: Manifest }): Promise<void> {
+  const installedPackages = await listPackages();
+  const packagesRequiredToBeUninstalled = getRequiresUninstallPackages({ manifest, installedPackages });
+  const requiresCoreUpdate = getRequiresCoreUpdate({ manifest, installedPackages });
+  const requiresDockerUpdate = await getRequiresDockerUpdate({ manifest });
+
+  const errors: string[] = [];
+  if (packagesRequiredToBeUninstalled.length > 0)
+    errors.push(`The following packages must be uninstalled: ${packagesRequiredToBeUninstalled.join(", ")}`);
+  if (requiresCoreUpdate) errors.push("The core package must be updated");
+  if (requiresDockerUpdate) errors.push("Docker must be updated");
+  if (errors.length > 0)
+    throw new Error(`The package cannot be installed because of the following requirements:
+${errors.join("\n")}`);
+}
+
+function getRequiresUninstallPackages({
+  manifest,
+  installedPackages
+}: {
+  manifest: Manifest;
+  installedPackages: InstalledPackageData[];
+}): string[] {
+  const { notInstalledPackages } = manifest.requirements || {};
+  if (!notInstalledPackages || notInstalledPackages.length === 0) return [];
+  return notInstalledPackages.filter((dnpName) => installedPackages.find((dnp) => dnp.dnpName === dnpName));
+}
+
+function getRequiresCoreUpdate({
+  manifest,
+  installedPackages
+}: {
+  manifest: Manifest;
+  installedPackages: InstalledPackageData[];
+}): boolean {
+  const coreDnp = installedPackages.find((dnp) => dnp.dnpName === params.coreDnpName);
+  if (!coreDnp) return false;
+  const coreVersion = coreDnp.version;
+  const minDnVersion = manifest.requirements ? manifest.requirements.minimumDappnodeVersion : "";
+  return Boolean(minDnVersion && valid(minDnVersion) && valid(coreVersion) && gt(minDnVersion, coreVersion));
+}
+async function getRequiresDockerUpdate({ manifest }: { manifest: Manifest }): Promise<boolean> {
+  const minDockerVersion = manifest.requirements?.minimumDockerVersion;
+  if (!minDockerVersion) return false;
+  const currentDockerVersion = await getDockerVersion();
+  return Boolean(
+    minDockerVersion &&
+      valid(minDockerVersion) &&
+      valid(currentDockerVersion) &&
+      gt(minDockerVersion, currentDockerVersion)
+  );
+}
diff --git a/packages/installer/src/installer/index.ts b/packages/installer/src/installer/index.ts
index 52727c69f..7f31a81de 100644
--- a/packages/installer/src/installer/index.ts
+++ b/packages/installer/src/installer/index.ts
@@ -7,3 +7,4 @@ export * from "./rollbackPackages.js";
 export * from "./runPackages.js";
 export * from "./restartPatch.js";
 export * from "./writeAndValidateFiles.js";
+export * from "./checkInstallRequirements.js";