From 30541c2e3c268d4f423c054813ea76c51afa7dfc Mon Sep 17 00:00:00 2001
From: Mathias-Boulay <mathiasboulay@free.fr>
Date: Tue, 21 Nov 2023 14:01:25 +0100
Subject: [PATCH] Feat[modpacks]: collect sha1 hashes

---
 .../modloaders/modpacks/api/CurseforgeApi.java  | 17 ++++++++++++++++-
 .../modloaders/modpacks/api/ModrinthApi.java    |  5 ++++-
 .../modloaders/modpacks/models/ModDetail.java   |  5 ++++-
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/CurseforgeApi.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/CurseforgeApi.java
index 0d9fbc8bb..5f22e82a8 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/CurseforgeApi.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/CurseforgeApi.java
@@ -28,6 +28,7 @@ import java.util.zip.ZipFile;
 
 public class CurseforgeApi implements ModpackApi{
     private static final Pattern sMcVersionPattern = Pattern.compile("([0-9]+)\\.([0-9]+)\\.?([0-9]+)?");
+    private static final int ALGO_SHA_1 = 1;
     // Stolen from
     // https://github.com/AnzhiZhang/CurseForgeModpackDownloader/blob/6cb3f428459f0cc8f444d16e54aea4cd1186fd7b/utils/requester.py#L93
     private static final int CURSEFORGE_MINECRAFT_GAME_ID = 432;
@@ -103,11 +104,14 @@ public class CurseforgeApi implements ModpackApi{
         String[] versionNames = new String[length];
         String[] mcVersionNames = new String[length];
         String[] versionUrls = new String[length];
+        String[] hashes = new String[length];
         for(int i = 0; i < allModDetails.size(); i++) {
             JsonObject modDetail = allModDetails.get(i);
             versionNames[i] = modDetail.get("displayName").getAsString();
+
             JsonElement downloadUrl = modDetail.get("downloadUrl");
             versionUrls[i] = downloadUrl.getAsString();
+
             JsonArray gameVersions = modDetail.getAsJsonArray("gameVersions");
             for(JsonElement jsonElement : gameVersions) {
                 String gameVersion = jsonElement.getAsString();
@@ -117,8 +121,18 @@ public class CurseforgeApi implements ModpackApi{
                 mcVersionNames[i] = gameVersion;
                 break;
             }
+
+            JsonArray downloadHashes = modDetail.getAsJsonArray("hashes");
+            hashes[i] = null;
+            for (JsonElement jsonElement : downloadHashes) {
+                // The sha1 = 1; md5 = 2;
+                if(jsonElement.getAsJsonObject().get("algo").getAsInt() == ALGO_SHA_1){
+                    hashes[i] = jsonElement.getAsJsonObject().get("value").getAsString();
+                    break;
+                }
+            }
         }
-        return new ModDetail(item, versionNames, mcVersionNames, versionUrls);
+        return new ModDetail(item, versionNames, mcVersionNames, versionUrls, hashes);
     }
 
     @Override
@@ -137,6 +151,7 @@ public class CurseforgeApi implements ModpackApi{
         if(response == null) return CURSEFORGE_PAGINATION_ERROR;
         JsonArray data = response.getAsJsonArray("data");
         if(data == null) return CURSEFORGE_PAGINATION_ERROR;
+
         for(int i = 0; i < data.size(); i++) {
             JsonObject fileInfo = data.get(i).getAsJsonObject();
             if(fileInfo.get("isServerPack").getAsBoolean()) continue;
diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/ModrinthApi.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/ModrinthApi.java
index e8eded460..0cd8eceef 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/ModrinthApi.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/api/ModrinthApi.java
@@ -79,15 +79,18 @@ public class ModrinthApi implements ModpackApi{
         String[] names = new String[response.size()];
         String[] mcNames = new String[response.size()];
         String[] urls = new String[response.size()];
+        String[] hashes = new String[response.size()];
 
         for (int i=0; i<response.size(); ++i) {
             JsonObject version = response.get(i).getAsJsonObject();
             names[i] = version.get("name").getAsString();
             mcNames[i] = version.get("game_versions").getAsJsonArray().get(0).getAsString();
             urls[i] = version.get("files").getAsJsonArray().get(0).getAsJsonObject().get("url").getAsString();
+            hashes[i] = version.getAsJsonArray("files").get(0).getAsJsonObject()
+                    .get("hashes").getAsJsonObject().get("sha1").getAsString();
         }
 
-        return new ModDetail(item, names, mcNames, urls);
+        return new ModDetail(item, names, mcNames, urls, hashes);
     }
 
     @Override
diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/models/ModDetail.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/models/ModDetail.java
index 12f9ec5e1..5a54e78b7 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/models/ModDetail.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/modloaders/modpacks/models/ModDetail.java
@@ -10,11 +10,14 @@ public class ModDetail extends ModItem {
     public String[] versionNames;
     public String [] mcVersionNames;
     public String[] versionUrls;
-    public ModDetail(ModItem item, String[] versionNames, String[] mcVersionNames, String[] versionUrls) {
+    /* SHA 1 hashes, null if a hash is unavailable */
+    public String[] versionHashes;
+    public ModDetail(ModItem item, String[] versionNames, String[] mcVersionNames, String[] versionUrls, String[] hashes) {
         super(item.apiSource, item.isModpack, item.id, item.title, item.description, item.imageUrl);
         this.versionNames = versionNames;
         this.mcVersionNames = mcVersionNames;
         this.versionUrls = versionUrls;
+        this.versionHashes = hashes;
 
         // Add the mc version to the version model
         for (int i=0; i<versionNames.length; i++){