Made changes including POST-to-GET CORS proxy in order to get NGINX site HTML and disabled CORS for the API.

.idea/gradle.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>

.idea/misc.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="FrameworkDetectionExcludesConfiguration">

.idea/workspace.xml

@@ -5,20 +5,11 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="ceecbd3e-6a84-488d-ae73-a0b5b3f4010e" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/gradle.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/gradle.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/gradle.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/jarRepositories.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/tech/nevets/ngxinstaller/Server.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/tech/nevets/ngxinstaller/Server.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/tech/nevets/ngxinstaller/TextStorage.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/tech/nevets/ngxinstaller/TextStorage.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/build.gradle" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/gradle/wrapper/gradle-wrapper.jar" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/gradle/wrapper/gradle-wrapper.properties" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/gradlew" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/gradlew.bat" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/settings.gradle" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/main/java/tech/nevets/ngxinstaller/Server.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/main/java/tech/nevets/ngxinstaller/TextStorage.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -38,23 +29,7 @@
         </task>
         <projects_view>
           <tree_state>
-            <expand>
+            <expand />
-              <path>
-                <item name="" type="6a2764b6:ExternalProjectsStructure$RootNode" />
-                <item name="NginxInstallerBackend" type="f1a62948:ProjectNode" />
-              </path>
-              <path>
-                <item name="" type="6a2764b6:ExternalProjectsStructure$RootNode" />
-                <item name="NginxInstallerBackend" type="f1a62948:ProjectNode" />
-                <item name="Tasks" type="e4a08cd1:TasksNode" />
-              </path>
-              <path>
-                <item name="" type="6a2764b6:ExternalProjectsStructure$RootNode" />
-                <item name="NginxInstallerBackend" type="f1a62948:ProjectNode" />
-                <item name="Tasks" type="e4a08cd1:TasksNode" />
-                <item name="shadow" type="c8890929:TasksNode$1" />
-              </path>
-            </expand>
             <select />
           </tree_state>
         </projects_view>
@@ -74,9 +49,9 @@
   <component name="MarkdownSettingsMigration">
     <option name="stateVersion" value="1" />
   </component>
-  <component name="ProjectColorInfo"><![CDATA[{
+  <component name="ProjectColorInfo">{
-  "associatedIndex": 0
+  &quot;associatedIndex&quot;: 0
-}]]></component>
+}</component>
   <component name="ProjectId" id="2Zm8KgH0I3o9715Y3ZzBs94Smav" />
   <component name="ProjectLevelVcsManager" settingsEditedManually="true">
     <ConfirmationsSetting value="2" id="Add" />
@@ -91,8 +66,11 @@
     "Gradle.NginxInstallerBackend [shadowJar].executor": "Run",
     "RunOnceActivity.OpenProjectViewOnStart": "true",
     "RunOnceActivity.ShowReadmeOnStart": "true",
+    "WebServerToolWindowFactoryState": "false",
+    "git-widget-placeholder": "master",
     "ignore.virus.scanning.warn.message": "true",
     "kotlin-language-version-configured": "true",
+    "last_opened_file_path": "F:/Projects/Web/NginxInstallerBackend",
     "node.js.detected.package.eslint": "true",
     "node.js.detected.package.tslint": "true",
     "node.js.selected.package.eslint": "(autodetect)",
@@ -101,7 +79,7 @@
     "vue.rearranger.settings.migration": "true"
   }
 }]]></component>
-  <component name="RunManager" selected="Gradle.NginxInstallerBackend [shadowJar]">
+  <component name="RunManager" selected="Application.Server">
     <configuration name="Server" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
       <option name="MAIN_CLASS_NAME" value="tech.nevets.ngxinstaller.Server" />
       <module name="NginxInstallerBackend.main" />
@@ -160,6 +138,7 @@
       <option name="presentableId" value="Default" />
       <updated>1703015833777</updated>
       <workItem from="1703015834937" duration="5516000" />
+      <workItem from="1703185574324" duration="1576000" />
     </task>
     <servers />
   </component>

src/main/java/tech/nevets/ngxinstaller/Server.java

@@ -4,6 +4,11 @@ import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonObject;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.Timer;
 import java.util.TimerTask;
 
@@ -11,17 +16,62 @@ import static spark.Spark.*;
 
 public class Server {
     private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create();
+    public static String cachedNginxSite = "";
     public static void main(String[] args) {
+        try {
+            cachedNginxSite = getHTML("https://nginx.org/download/");
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
         port(8080);
+        options("/*",
+                (request, response) -> {
+
+                    String accessControlRequestHeaders = request
+                            .headers("Access-Control-Request-Headers");
+                    if (accessControlRequestHeaders != null) {
+                        response.header("Access-Control-Allow-Headers",
+                                accessControlRequestHeaders);
+                    }
+
+                    String accessControlRequestMethod = request
+                            .headers("Access-Control-Request-Method");
+                    if (accessControlRequestMethod != null) {
+                        response.header("Access-Control-Allow-Methods",
+                                accessControlRequestMethod);
+                    }
+
+                    return "OK";
+                });
+
+        before((request, response) -> response.header("Access-Control-Allow-Origin", "*"));
+        post("/ngx/dhv", (req, res) -> {
+            System.out.println(req.body());
+            JsonObject jsonObject = GSON.fromJson(req.body(), JsonObject.class);
+            String version = jsonObject.get("version").getAsString();
+            System.out.println(version);
+            try {
+                if (cachedNginxSite.contains(version + ".tar.gz")) {
+                    System.out.println("true");
+                    return "{ \"url\":\"true\" }";
+                }
+            } catch (Exception ignore) {
+                System.out.println("false");
+                return "{ \"url\":\"false\" }";
+            }
+            System.out.println("false");
+            return "{ \"url\":\"false\" }";
+        });
         post("/ngx/create", (req, res) -> {
             JsonObject jsonObject = GSON.fromJson(req.body(), JsonObject.class);
-            TextStorage ts = TextStorage.createPaste(jsonObject.get("content").getAsString());
+            TextStorage ts = TextStorage.createPaste(java.net.URLDecoder.decode(jsonObject.get("content").getAsString(), StandardCharsets.UTF_8));
             return "{ \"url\":\"https://api.nevets.tech/ngx/raw/" + ts.getId() + "\" }";
         });
         get("/ngx/raw/*", (req, res) -> {
             String id = req.splat()[0];
             TextStorage ts = TextStorage.getPaste(id);
-            return GSON.toJson(ts);
+            res.type("raw");
+            return ts.getText();
         });
 
 
@@ -30,6 +80,21 @@ public class Server {
         timer.schedule(tt, 0, 60000);
     }
 
+    public static String getHTML(String urlToRead) throws Exception {
+        StringBuilder result = new StringBuilder();
+        URL url = new URL(urlToRead);
+        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+        conn.setRequestMethod("GET");
+        try (BufferedReader reader = new BufferedReader(
+                new InputStreamReader(conn.getInputStream()))) {
+            for (String line; (line = reader.readLine()) != null; ) {
+                result.append(line);
+            }
+        }
+        return result.toString();
+    }
+
+
     static class GCTask extends TimerTask {
         @Override
         public void run() {

src/main/java/tech/nevets/ngxinstaller/TextStorage.java

@@ -19,6 +19,10 @@ public class TextStorage {
         this.expiration = expiration;
     }
 
+    public String getText() {
+        return text;
+    }
+
     public String getId() {
         return this.id;
     }