Test docker extract bugs

Signed-off-by: Prabhu Subramanian <prabhu@appthreat.com>

lib/managers/docker.js

@@ -17,7 +17,7 @@ import {
   homedir,
   tmpdir,
 } from "node:os";
-import { basename, join, resolve } from "node:path";
+import { basename, join, resolve, win32 } from "node:path";
 import process from "node:process";
 import stream from "node:stream/promises";
 import { parse } from "node:url";
@@ -50,6 +50,20 @@ if (
   isContainerd = true;
 }
 
+// Taken from https://github.com/isaacs/node-tar/blob/main/src/strip-absolute-path.ts
+export const stripAbsolutePath = (path) => {
+  let parsed = win32.parse(path);
+  while (win32.isAbsolute(path) || parsed.root) {
+    // windows will think that //x/y/z has a "root" of //x/y/
+    // but strip the //?/C:/ off of //?/C:/path
+    const root =
+      path.charAt(0) === "/" && path.slice(0, 4) !== "//?/" ? "/" : parsed.root;
+    path = path.slice(root.length);
+    parsed = win32.parse(path);
+  }
+  return path;
+};
+
 /**
  * Detect if Rancher desktop is running on a mac.
  */
@@ -745,6 +759,18 @@ export const getImage = async (fullImageName) => {
   return localData;
 };
 
+/**
+ * Warnings such as TAR_ENTRY_INFO are treated as errors in strict mode. While this is mostly desired, we can relax this
+ * requirement for one particular warning related to absolute paths.
+ *
+ * @param entry {tar.ReadEntry} ReadEntry object from node-tar
+ */
+function handleAbsolutePath(entry) {
+  if (entry.path === "/" || win32.isAbsolute(entry.path)) {
+    entry.path = stripAbsolutePath(entry.path);
+  }
+}
+
 export const extractTar = async (fullImageName, dir) => {
   try {
     await stream.pipeline(
@@ -760,9 +786,10 @@ export const extractTar = async (fullImageName, dir) => {
         onwarn: () => {
           // ignore
         },
+        onReadEntry: handleAbsolutePath,
         filter: (path, entry) => {
           // Some files are known to cause issues with extract
-          if (
+          return !(
             path.includes("etc/machine-id") ||
             path.includes("etc/gshadow") ||
             path.includes("etc/shadow") ||
@@ -790,10 +817,7 @@ export const extractTar = async (fullImageName, dir) => {
               "RenamedOrSymlinked",
               "HardLink",
             ].includes(entry.type)
-          ) {
-            return false;
-          }
-          return true;
+          );
         },
       }),
     );
@@ -834,6 +858,8 @@ export const extractTar = async (fullImageName, dir) => {
        */
     } else if (!["TAR_ENTRY_INFO", "TAR_ENTRY_INVALID"].includes(err.code)) {
       console.log(err);
+    } else if (DEBUG_MODE) {
+      console.log(err.code, "is not handled yet.");
     }
     return false;
   }
@@ -1084,6 +1110,7 @@ export const exportImage = async (fullImageName) => {
           onwarn: () => {
             // ignore
           },
+          onReadEntry: handleAbsolutePath,
         }),
       );
     } catch (err) {
@@ -1103,6 +1130,7 @@ export const exportImage = async (fullImageName) => {
               onwarn: () => {
                 // ignore
               },
+              onReadEntry: handleAbsolutePath,
             }),
           );
         } catch (err) {