Add ent's output to the keys page

Signed-off-by: Graham <gpe@openrs2.org>

archive/src/main/kotlin/org/openrs2/archive/key/EntCommand.kt

@@ -5,33 +5,12 @@ import com.google.inject.Guice
 import kotlinx.coroutines.runBlocking
 import org.openrs2.archive.ArchiveModule
 import org.openrs2.inject.CloseableInjector
-import java.io.BufferedOutputStream
-import java.io.DataOutputStream
 
 public class EntCommand : CliktCommand(name = "ent") {
     override fun run(): Unit = runBlocking {
         CloseableInjector(Guice.createInjector(ArchiveModule)).use { injector ->
             val exporter = injector.getInstance(KeyExporter::class.java)
-            val keys = exporter.exportValid()
-
-            val process = ProcessBuilder("ent")
-                .redirectOutput(ProcessBuilder.Redirect.INHERIT)
-                .redirectError(ProcessBuilder.Redirect.INHERIT)
-                .start()
-
-            DataOutputStream(BufferedOutputStream(process.outputStream)).use { out ->
-                for (key in keys) {
-                    out.writeInt(key.k0)
-                    out.writeInt(key.k1)
-                    out.writeInt(key.k2)
-                    out.writeInt(key.k3)
-                }
-            }
-
-            val status = process.waitFor()
-            if (status != 0) {
-                throw Exception("ent failed: $status")
-            }
+            println(exporter.analyse())
         }
     }
 }

archive/src/main/kotlin/org/openrs2/archive/key/KeyExporter.kt

@@ -2,6 +2,8 @@ package org.openrs2.archive.key
 
 import org.openrs2.crypto.XteaKey
 import org.openrs2.db.Database
+import java.io.BufferedOutputStream
+import java.io.DataOutputStream
 import javax.inject.Inject
 import javax.inject.Singleton
 
@@ -77,6 +79,32 @@ public class KeyExporter @Inject constructor(
         return export(validOnly = true)
     }
 
+    public suspend fun analyse(): String {
+        val keys = exportValid()
+
+        val process = ProcessBuilder("ent")
+            .redirectError(ProcessBuilder.Redirect.INHERIT)
+            .start()
+
+        DataOutputStream(BufferedOutputStream(process.outputStream)).use { out ->
+            for (key in keys) {
+                out.writeInt(key.k0)
+                out.writeInt(key.k1)
+                out.writeInt(key.k2)
+                out.writeInt(key.k3)
+            }
+        }
+
+        val analysis = process.inputStream.readAllBytes().toString(Charsets.UTF_8)
+
+        val status = process.waitFor()
+        if (status != 0) {
+            throw Exception("ent failed: $status")
+        }
+
+        return analysis
+    }
+
     private suspend fun export(validOnly: Boolean): List<XteaKey> {
         return database.execute { connection ->
             val query = if (validOnly) {

archive/src/main/kotlin/org/openrs2/archive/web/KeysController.kt

@@ -13,7 +13,8 @@ public class KeysController @Inject constructor(
 ) {
     public suspend fun index(call: ApplicationCall) {
         val stats = exporter.count()
-        call.respond(ThymeleafContent("keys/index.html", mapOf("stats" to stats)))
+        val analysis = exporter.analyse()
+        call.respond(ThymeleafContent("keys/index.html", mapOf("stats" to stats, "analysis" to analysis)))
     }
 
     public suspend fun exportAll(call: ApplicationCall) {

archive/src/main/resources/org/openrs2/archive/templates/keys/index.html

@@ -29,6 +29,7 @@
 				have a validated key. This is equal to the total number of
 				validated keys if and only if keys are not re-used.
 			</p>
+
 			<h2>Download</h2>
 			<p>
 				This page allows all raw keys in the database to be exported in
@@ -37,12 +38,26 @@
 				the cache, use the download link on the
 				<a href="/caches">caches</a> page instead.
 			</p>
-			<div class="btn-group">
+			<p class="btn-group">
 				<a href="/keys/all.json"
 				   class="btn btn-primary btn-sm">All candidate keys (JSON)</a>
 				<a href="/keys/valid.json"
 				   class="btn btn-primary btn-sm">Validated keys (JSON)</a>
-			</div>
+			</p>
+
+			<h2>Analysis</h2>
+			<p>
+				The output of piping all validated keys in binary format into
+				<a href="https://www.fourmilab.ch/random/"><code>ent</code></a>
+				is:
+			</p>
+			<!--/*@thymesVar id="analysis" type="java.lang.String"*/-->
+			<pre><code th:text="${analysis}"></code></pre>
+			<p>
+				The keys are sorted in import order, which does not match the
+				order they were generated in. This could influence portions of
+				<code>ent</code>'s output.
+			</p>
 		</main>
 	</body>
 </html>