Minecraft Java Server: unhide and make independent of serverjars

Sponge is no longer supported due to lacking an easy to use API. Paper and Purpur APIs are now parsed by this script directly instead of relying on serverjars.

serverjars may never come back online due to being hit by the bus factor.

apps/Minecraft Java Server/description

@@ -1,5 +1,4 @@
-This is a simple tool to create a Minecraft server: Vanilla, Fabric, Forge, Paper, Sponge, Purpur are supported
-(Bukkit and Spigot support not currently present until https://serverjars.com is able to rebuild their database)
+This is a simple tool to create a Minecraft server: Vanilla, Fabric, Forge, Paper, and Purpur are supported
 
 You can play over your local network (or you can create a port forward on your internet router/modem at port 25565 to play over the internet)
 

apps/Minecraft Java Server/install

@@ -19,19 +19,10 @@ mkdir -p "$HOME/Minecraft-Java-Server"
 cd "$HOME/Minecraft-Java-Server" || error "Could not enter Minecraft-Java-Server folder."
 
 description="What type of Minecraft server\ndo you want to run?"
-table=("Vanilla" "Fabric" "Forge")
-serverjars=( $(curl -s https://serverjars.com/api/fetchTypes | jq -r '.response.servers[]' | sed 's/.*/\u&/') )
-table+=( ${serverjars[@]} )
+table=("Vanilla" "Fabric" "Forge" "Paper" "Purpur")
 userinput_func "$description" "${table[@]}"
 server_category="$output"
 
-# store previous extglob state
-extglob_was_enabled=0
-shopt -q extglob && extglob_was_enabled=1
-# enable extglob
-shopt -s extglob
-serverjars_extglob="@($(IFS="|";echo "${serverjars[*]}"))"
-
 case "$server_category" in
   "Fabric")
     available_versions=$(curl -s https://meta.fabricmc.net/v2/versions/game | jq -r '.[] | select( .stable == true ) | .version')
@@ -63,15 +54,27 @@ case "$server_category" in
     server_jar="forge-$installer_version-installer.jar"
     wget -O "$server_jar" "https://maven.minecraftforge.net/net/minecraftforge/forge/$installer_version/forge-$installer_version-installer.jar" || exit 1
     ;;
-  $serverjars_extglob)
-    available_versions=$(curl -s https://serverjars.com/api/fetchAll/Servers/$server_category/0 | jq -r '.response[] | .version')
+  "Paper")
+    available_versions=$(curl -s https://api.papermc.io/v2/projects/paper/ | jq -r '.versions.[]')
     description="What version of $server_category do you want to run?"
     table=($available_versions)
     userinput_func "$description" "${table[@]}"
     server_version="$output"
     status "Selected $server_category version $server_version"
-    server_jar="${server_category,,}-$server_version.jar"
-    wget -O "$server_jar" "https://serverjars.com/api/fetchJar/Servers/$server_category/$server_version" || exit 1
+    version_info=$(curl -s https://api.papermc.io/v2/projects/paper/versions/$server_version/builds | jq -r '.builds | [last]')
+    server_jar="$(echo "$version_info" | jq -r '.[].downloads.application.name')"
+    wget -O "$server_jar" "https://api.papermc.io/v2/projects/paper/versions/$server_version/builds/$(echo "$version_info" | jq -r '.[].build')/downloads/$server_jar" || exit 1
+    ;;
+  "Purpur")
+    available_versions=$(curl -s https://api.purpurmc.org/v2/purpur/ | jq -r '.versions.[]')
+    description="What version of $server_category do you want to run?"
+    table=($available_versions)
+    userinput_func "$description" "${table[@]}"
+    server_version="$output"
+    status "Selected $server_category version $server_version"
+    build_version=$(curl -s https://api.purpurmc.org/v2/purpur/$server_version/ | jq -r '.builds.latest')
+    server_jar="purpur-$server_version-$build_version.jar"
+    wget -O "$server_jar" "https://api.purpurmc.org/v2/purpur/$server_version/$build_version/download" || exit 1
     ;;
   "Vanilla")
     available_versions=$(curl -s https://serverjars.com/api/fetchAll/Vanilla/$server_category/0 | jq -r '.response[] | .version')
@@ -88,10 +91,6 @@ case "$server_category" in
     ;;
 esac
 
-if [[ "$extglob_was_enabled" == "0" ]]; then
-  shopt -u extglob
-fi
-
 while [[ ! -a $(echo ${server_jar}) ]]; do
   description="Please use the website which has opened to download your chosen version of the Minecraft Java Server.\
   \nAdd your ${server_jar} file to the folder opened $HOME/Minecraft-Java-Server and press OK.\
@@ -104,13 +103,14 @@ done
 server_jar=$(echo ${server_jar})
 
 if [ -z "$server_version" ]; then
-  # tell user to choose java 8 or 17
+  # tell user to choose java 8, 17, or 21
   description="In order to run Minecraft, the game requires a specific version of Java.\
   \nPlease choose below which version of java the server of your choice should run with.\
-  \nJava versions can be 8 or 17.\
+  \nJava versions can be 8, 17, or 21.\
   \n\nAll versions of Minecraft before and including Minecraft 1.16.5 should use Java 8.\
-  \nMinecraft 1.17+ should use java 17."
-  table=("Java 17" "Java 8")
+  \nMinecraft 1.17-1.20 should use java 17.\
+  \nMinecraft 1.21+ should use java 21."
+  table=("Java 21" "Java 17" "Java 8")
   userinput_func "$description" "${table[@]}"
   java_selection="$output"
 else
@@ -122,17 +122,21 @@ else
   if [ $(version $server_version) -le $(version "1.16.5") ]; then
     echo "Using Java 8 by default"
     java_selection="Java 8"
+  elif [ $(version $server_version) -ge $(version "1.21") ]; then
+    echo "Using Java 17 by default"
+    java_selection="Java 17"
   elif [ $(version $server_version) -ge $(version "1.17") ]; then
     echo "Using Java 17 by default"
     java_selection="Java 17"
   else
     description="WARNING: We don't know how you got here... your version $server_version does not seem to be a normal minecraft format.\
     \n\nIn order to run Minecraft, the game requires a specific version of Java.\
     \nPlease choose below which version of java the server of your choice should run with.\
-    \nJava versions can be 8 or 17.\
+    \nJava versions can be 8, 17, or 21.\
     \n\nAll version of Minecraft before and including Minecraft 1.16.5 should use Java 8.\
-    \nMinecraft 1.17+ should use java 17."
-    table=("Java 17" "Java 8")
+    \nMinecraft 1.17-1.20 should use java 17.\
+    \nMinecraft 1.21+ should use java 21."
+    table=("Java 21" "Java 17" "Java 8")
     userinput_func "$description" "${table[@]}"
     java_selection="$output"
   fi
@@ -141,7 +145,7 @@ fi
 install_packages lsb-release wget gpg screen || exit 1
 
 case "$java_selection" in
-  "Java 8"|"Java 17")
+  "Java 8"|"Java 17"|"Java 21")
     adoptium_installer || exit 1
     ;;
   *)
@@ -170,6 +174,14 @@ case "$java_selection" in
     install_packages temurin-17-jre || exit 1
     java_location="/usr/lib/jvm/temurin-17-jre-$dpkg_arch/bin/java"
     ;;
+  "Java 21")
+    if package_available temurin-21-jre ;then
+      install_packages temurin-21-jre || exit 1
+    else
+      error "Java 21 is not available for your platform from Adoptium. Exiting the script."
+    fi
+    java_location="/usr/lib/jvm/temurin-21-jre-$dpkg_arch/bin/java"
+    ;;
 esac
 
 jvm_test="1"

etc/categories

@@ -113,7 +113,7 @@ Minecraft Bedrock|Games
 Minecraft Java GDLauncher|Games
 Minecraft Java Lunar|hidden
 Minecraft Java Prism Launcher|Games
-Minecraft Java Server|hidden
+Minecraft Java Server|Games
 Minecraft Pi (Modded)|Games
 Min|Internet/Browsers
 Mission Planner|Engineering