launcher/launcher/src/main/java/sashegdev/zernmc/launcher/minecraft/installer/ForgeInstaller.java

@@ -48,7 +48,16 @@ public class ForgeInstaller {
         LauncherLogger.info("Downloading Forge Installer...");
         downloadFileWithProgress(installerUrl, installerJar);
 
-        // Step 4: Run Forge Installer and show its output
+        // Step 4: Pre-download the libraries the installer subprocess would fetch from
+        // maven.minecraftforge.net directly. On blocked networks that subprocess cannot
+        // reach the maven host, so we seed every library (version.json + install_profile.json)
+        // through the launcher smart proxy first. The installer reuses files whose checksums
+        // validate ("File exists: Checksum validated"), so no direct downloads are needed.
+        LauncherLogger.info("Prefetching Forge libraries via smart proxy...");
+        int prefetched = ZHttpClient.prefetchInstallerLibraries(installerJar, instance.getPath());
+        LauncherLogger.info("Prefetched " + prefetched + " Forge libraries");
+
+        // Step 5: Run Forge Installer and show its output
         LauncherLogger.info("Running Forge Installer...");
         LauncherLogger.info("This may take a few minutes. Please wait...");
         
@@ -105,6 +114,13 @@ public class ForgeInstaller {
         while (attempt <= maxRetries) {
             LauncherLogger.info("Attempt " + attempt + " of " + maxRetries);
 
+            // Re-seed libraries each attempt: the installer may have left partial files,
+            // and prefetch deletes any with a bad checksum before re-downloading via proxy.
+            int seeded = ZHttpClient.prefetchInstallerLibraries(installerJar, instance.getPath());
+            if (seeded > 0) {
+                LauncherLogger.info("  Prefetched " + seeded + " libraries for this attempt");
+            }
+
             ProcessBuilder pb = new ProcessBuilder(
                     JavaResolver.getJavaExecutable(),
                     "-jar",
@@ -175,19 +191,8 @@ public class ForgeInstaller {
             if (attempt < maxRetries) {
                 LauncherLogger.warn("Install error. Retrying in 5 seconds...");
                 Thread.sleep(5000);
-
-                // Clean temp files before retry
-                Path librariesDir = instance.getPath().resolve("libraries");
-                if (Files.exists(librariesDir)) {
-                    // Удаляем только частично скачанные библиотеки Forge
-                    try (var stream = Files.walk(librariesDir)) {
-                        stream.filter(p -> p.toString().contains("asm") && p.toString().endsWith(".jar"))
-                              .forEach(p -> {
-                                  try { Files.deleteIfExists(p); } 
-                                  catch (IOException e) { /* ignore */ }
-                              });
-                    }
-                }
+                // Prefetch at the top of the next attempt already re-seeds any library that
+                // was left partial or corrupted (SHA-1 mismatch -> delete + re-download via proxy).
             } else {
                 LauncherLogger.error("Forge Installer exited with error code: " + exitCode);
 

launcher/launcher/src/main/java/sashegdev/zernmc/launcher/minecraft/installer/NeoForgeInstaller.java

@@ -49,6 +49,10 @@ public class NeoForgeInstaller {
         LauncherLogger.info("Downloading NeoForge Installer...");
         downloadFileWithProgress(installerUrl, installerJar);
 
+        LauncherLogger.info("Prefetching NeoForge libraries via smart proxy...");
+        int prefetched = ZHttpClient.prefetchInstallerLibraries(installerJar, instance.getPath());
+        LauncherLogger.info("Prefetched " + prefetched + " NeoForge libraries");
+
         LauncherLogger.info("Running NeoForge Installer...");
         LauncherLogger.info("This may take a few minutes. Please wait...");
 

launcher/launcher/src/main/java/sashegdev/zernmc/launcher/ui/jfx/JFXLauncher.java

@@ -206,6 +206,77 @@ public class JFXLauncher extends Application {
         launch(args);
     }
 
+    private static final byte[] PNG_SIGNATURE = {(byte) 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A};
+
+    private static javafx.scene.image.Image loadWindowIcon() {
+        try {
+            byte[] ico = readAssetBytes("assets/ui/icons/zernmc.ico");
+            if (ico != null) {
+                byte[] png = extractIcoPngFrame(ico);
+                if (png != null) {
+                    return new javafx.scene.image.Image(new java.io.ByteArrayInputStream(png));
+                }
+            }
+            byte[] png = readAssetBytes("assets/ui/icons/zernmc.png");
+            if (png != null) {
+                return new javafx.scene.image.Image(new java.io.ByteArrayInputStream(png));
+            }
+        } catch (Exception e) {
+            log("Window icon load error: " + e.getMessage());
+        }
+        return null;
+    }
+
+    private static byte[] readAssetBytes(String resourcePath) {
+        try (InputStream in = JFXLauncher.class.getResourceAsStream("/" + resourcePath)) {
+            if (in != null) {
+                return in.readAllBytes();
+            }
+        } catch (Exception ignored) {}
+        try {
+            Path file = Paths.get(resourcePath);
+            if (Files.exists(file)) {
+                return Files.readAllBytes(file);
+            }
+        } catch (Exception ignored) {}
+        return null;
+    }
+
+    private static byte[] extractIcoPngFrame(byte[] ico) {
+        if (ico == null || ico.length < 6 || ico[0] != 0 || ico[1] != 0) {
+            return null;
+        }
+        int count = (ico[4] & 0xFF) | ((ico[5] & 0xFF) << 8);
+        int bestSize = -1;
+        int bestOffset = -1;
+        int bestLength = -1;
+        for (int i = 0; i < count; i++) {
+            int off = 6 + i * 16;
+            if (off + 16 > ico.length) break;
+            int w = ico[off] & 0xFF;
+            int h = ico[off + 1] & 0xFF;
+            int size = (w == 0 ? 256 : w) * (h == 0 ? 256 : h);
+            int len = (ico[off + 8] & 0xFF) | ((ico[off + 9] & 0xFF) << 8)
+                    | ((ico[off + 10] & 0xFF) << 16) | ((ico[off + 11] & 0xFF) << 24);
+            int imgOff = (ico[off + 12] & 0xFF) | ((ico[off + 13] & 0xFF) << 8)
+                    | ((ico[off + 14] & 0xFF) << 16) | ((ico[off + 15] & 0xFF) << 24);
+            if (imgOff < 0 || len <= 0 || imgOff + len > ico.length) continue;
+            boolean isPng = true;
+            for (int b = 0; b < PNG_SIGNATURE.length; b++) {
+                if (ico[imgOff + b] != PNG_SIGNATURE[b]) { isPng = false; break; }
+            }
+            if (isPng && size > bestSize) {
+                bestSize = size;
+                bestOffset = imgOff;
+                bestLength = len;
+            }
+        }
+        if (bestOffset < 0 || bestLength <= 0) return null;
+        byte[] png = new byte[bestLength];
+        System.arraycopy(ico, bestOffset, png, 0, bestLength);
+        return png;
+    }
+
     private static void extractAssets() {
         try {
             Path assetsDir = Paths.get("assets");
@@ -445,6 +516,11 @@ public class JFXLauncher extends Application {
             String url = "http://localhost:" + PORT + "/assets/ui/index.html";
             engine.load(url);
 
+            javafx.scene.image.Image windowIcon = loadWindowIcon();
+            if (windowIcon != null) {
+                stage.getIcons().add(windowIcon);
+            }
+
             stage.setTitle(APP_TITLE);
             int winW = Config.getWindowWidth();
             int winH = Config.getWindowHeight();
@@ -518,6 +594,7 @@ public class JFXLauncher extends Application {
         server.createContext("/api/exit-parent", this::handleExitParent);
         server.createContext("/api/system-info", this::handleSystemInfo);
         server.createContext("/api/open-log-file", this::handleOpenLogFile);
+        server.createContext("/api/clipboard", this::handleClipboard);
         server.createContext("/api/friends/list", this::handleFriendList);
         server.createContext("/api/friends/add", this::handleFriendAdd);
         server.createContext("/api/friends/remove", this::handleFriendRemove);
@@ -561,21 +638,43 @@ public class JFXLauncher extends Application {
 
     private void handleOpenLogFile(HttpExchange exchange) {
         try {
+            Path target = null;
             if (gameLogFile != null && Files.exists(gameLogFile)) {
+                target = gameLogFile;
+            } else if (launcherLogFile != null && Files.exists(launcherLogFile)) {
+                target = launcherLogFile;
+            }
+            if (target != null) {
                 if (Desktop.isDesktopSupported()) {
-                    Desktop.getDesktop().open(gameLogFile.toFile());
-                    sendJson(exchange, Map.of("success", true));
+                    Desktop.getDesktop().open(target.toFile());
+                    sendJson(exchange, Map.of("success", true, "file", target.toString()));
                 } else {
                     sendJson(exchange, Map.of("success", false, "error", "Desktop not supported"));
                 }
             } else {
-                sendJson(exchange, Map.of("success", false, "error", "No game log file found"));
+                sendJson(exchange, Map.of("success", false, "error", "No log file found"));
             }
         } catch (Exception e) {
             sendJson(exchange, Map.of("success", false, "error", e.getMessage()));
         }
     }
 
+    private void handleClipboard(HttpExchange exchange) {
+        try {
+            Map<String, String> body = parseJson(exchange.getRequestBody());
+            String text = body != null ? body.get("text") : null;
+            if (text == null) {
+                sendJson(exchange, Map.of("success", false, "error", "Empty clipboard text"));
+                return;
+            }
+            java.awt.Toolkit.getDefaultToolkit().getSystemClipboard().setContents(
+                new java.awt.datatransfer.StringSelection(text), null);
+            sendJson(exchange, Map.of("success", true));
+        } catch (Exception e) {
+            sendJson(exchange, Map.of("success", false, "error", e.getMessage()));
+        }
+    }
+
     private void handleOpenUrl(HttpExchange exchange) {
         try {
             Map<String, String> body = parseJson(exchange.getRequestBody());

launcher/launcher/src/main/java/sashegdev/zernmc/launcher/utils/ZHttpClient.java

@@ -717,6 +717,83 @@ public class ZHttpClient {
         }
     }
 
+    /**
+     * Pre-downloads every library referenced by a loader installer jar (Forge/NeoForge).
+     * The installer later runs as a separate JVM subprocess that downloads libraries
+     * directly from the loader's maven repository, bypassing this launcher's smart proxy.
+     * On blocked networks (e.g. maven.minecraftforge.net unreachable) that subprocess
+     * fails with "Connection reset". Because the installer reuses any library already
+     * present with a matching checksum ("File exists: Checksum validated"), pre-seeding
+     * those files through the proxy lets the install complete without direct downloads.
+     *
+     * @return number of new library files downloaded
+     */
+    public static int prefetchInstallerLibraries(Path installerJar, Path minecraftDir) {
+        int prefetched = 0;
+        try (java.util.zip.ZipFile zip = new java.util.zip.ZipFile(installerJar.toFile())) {
+            for (String jsonName : List.of("version.json", "install_profile.json")) {
+                java.util.zip.ZipEntry entry = zip.getEntry(jsonName);
+                if (entry == null) continue;
+                String content = new String(zip.getInputStream(entry).readAllBytes(), StandardCharsets.UTF_8);
+                JSONObject root = new JSONObject(content);
+                JSONArray libs = root.optJSONArray("libraries");
+                if (libs == null) continue;
+                for (int i = 0; i < libs.length(); i++) {
+                    JSONObject lib = libs.optJSONObject(i);
+                    if (lib == null) continue;
+                    JSONObject downloads = lib.optJSONObject("downloads");
+                    if (downloads == null) continue;
+                    JSONObject artifact = downloads.optJSONObject("artifact");
+                    if (artifact == null) continue;
+                    String url = artifact.optString("url", null);
+                    String path = artifact.optString("path", null);
+                    String sha1 = artifact.optString("sha1", null);
+                    if (url == null || path == null) continue;
+
+                    Path target = minecraftDir.resolve("libraries").resolve(path);
+                    try {
+                        if (Files.exists(target)) {
+                            if (sha1 == null || sha1.isEmpty() || sha1Matches(target, sha1)) {
+                                continue;
+                            }
+                            Files.delete(target);
+                        }
+                        Files.createDirectories(target.getParent());
+                        downloadFileWithSmartProxy(url, target);
+                        if (sha1 != null && !sha1.isEmpty() && !sha1Matches(target, sha1)) {
+                            Files.delete(target);
+                            LauncherLogger.warn("[LIB] Checksum mismatch after prefetch: " + path);
+                            continue;
+                        }
+                        prefetched++;
+                        LauncherLogger.info("[LIB] Prefetched " + path);
+                    } catch (Exception e) {
+                        LauncherLogger.warn("[LIB] Prefetch failed for " + path + ": " + e.getMessage());
+                    }
+                }
+            }
+        } catch (Exception e) {
+            LauncherLogger.warn("[LIB] Installer prefetch scan failed: " + e.getMessage());
+        }
+        return prefetched;
+    }
+
+    private static boolean sha1Matches(Path file, String expectedSha1) throws Exception {
+        java.security.MessageDigest digest = java.security.MessageDigest.getInstance("SHA-1");
+        try (java.io.InputStream in = Files.newInputStream(file)) {
+            byte[] buffer = new byte[8192];
+            int read;
+            while ((read = in.read(buffer)) != -1) {
+                digest.update(buffer, 0, read);
+            }
+        }
+        StringBuilder sb = new StringBuilder();
+        for (byte b : digest.digest()) {
+            sb.append(String.format("%02x", b));
+        }
+        return sb.toString().equalsIgnoreCase(expectedSha1);
+    }
+
     private static String resolveCoordinatesUrl(JSONObject lib) {
         String name = lib.getString("name");
         String base = lib.getString("url");

launcher/launcher/src/resources/ui/index.html

@@ -151,7 +151,7 @@
                                     <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
                                 </button>
                             </div>
-                            <div id="server-packs-list" class="pack-list"></div>
+                            <div class="pack-list-collapse"><div id="server-packs-list" class="pack-list"></div></div>
                         </div>
 
                         <div class="sidebar-section section-collapsible" id="local-packs-section">
@@ -164,7 +164,7 @@
                                     <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
                                 </button>
                             </div>
-                            <div id="local-packs-list" class="pack-list"></div>
+                            <div class="pack-list-collapse"><div id="local-packs-list" class="pack-list"></div></div>
                         </div>
                     </div>
 
@@ -550,7 +550,7 @@
                     <h3 data-i18n="logViewer.title">Game Log</h3>
                     <div class="log-viewer-actions">
                         <button class="btn-secondary btn-sm" id="copy-log-btn" onclick="app.copyLogs()"><span data-i18n="logViewer.copy">Copy</span></button>
-                        <button class="btn-secondary btn-sm" onclick="app.req('/open-log-file', {method:'POST'})"><span data-i18n="logViewer.openFile">Open File</span></button>
+                        <button class="btn-secondary btn-sm" onclick="app.openLogFile()"><span data-i18n="logViewer.openFile">Open File</span></button>
                         <button class="modal-close" id="close-log-viewer-btn" onclick="app.closeLogViewer()">&times;</button>
                     </div>
                 </div>

launcher/launcher/src/resources/ui/launcher.js

@@ -58,6 +58,8 @@ const LOCALES = {
         'logViewer.noLogs': 'No logs yet. Launch the game to see logs here.',
         'logViewer.copy': 'Copy', 'logViewer.copied': 'Copied!',
         'logViewer.openFile': 'Open File', 'logViewer.close': 'Close',
+        'logViewer.opened': 'File opened',
+        'logViewer.openFailed': 'Could not open the log file',
         'logViewer.waiting': 'Waiting for game output...',
         'install.title': 'Install Pack',
         'install.tab.serverPack': 'Server Pack', 'install.tab.custom': 'Custom',
@@ -267,6 +269,8 @@ const LOCALES = {
         'logViewer.noLogs': 'Логов пока нет. Запустите игру, чтобы увидеть логи.',
         'logViewer.copy': 'Копировать', 'logViewer.copied': 'Скопировано!',
         'logViewer.openFile': 'Открыть файл', 'logViewer.close': 'Закрыть',
+        'logViewer.opened': 'Файл открыт',
+        'logViewer.openFailed': 'Не удалось открыть файл логов',
         'logViewer.waiting': 'Ожидание вывода игры...',
         'install.title': 'Установить сборку',
         'install.tab.serverPack': 'Серверная сборка', 'install.tab.custom': 'Своя',
@@ -475,7 +479,10 @@ class ZernMCLauncher {
         _localeData = LOCALES[lang] || LOCALES.en;
         applyLocale();
         var sel = document.getElementById('locale-select');
-        if (sel) sel.value = lang;
+        if (sel) {
+            sel.value = lang;
+            if (sel.dataset.enhanced) this.refreshCustomSelect(sel);
+        }
     }
 
     // ==================== BACKGROUND ====================
@@ -2477,6 +2484,7 @@ class ZernMCLauncher {
     openLogViewer() {
         var overlay = document.getElementById('log-viewer-overlay');
         if (!overlay) return;
+        this._logRenderedLines = null;
         overlay.classList.remove('hidden');
         this._pollLogViewer();
         this._logPollInterval = setInterval(this._pollLogViewer.bind(this), 1500);
@@ -2504,13 +2512,32 @@ class ZernMCLauncher {
         var content = document.getElementById('log-viewer-content');
         if (!content) return;
         if (!raw || !raw.trim()) {
+            this._logRenderedLines = null;
             content.innerHTML = '<div class="log-line log-empty">' + t('logViewer.noLogs') + '</div>';
             return;
         }
         var lines = raw.split('\n').filter(function(l) { return l.trim(); });
-        var html = lines.map(this._renderLogLine.bind(this)).join('');
-        content.innerHTML = html;
-        content.scrollTop = content.scrollHeight;
+        var cleaned = lines.map(function(l) { return l.replace(/§[0-9a-fklmnor]/g, ''); });
+
+        var stick = content.scrollTop + content.clientHeight >= content.scrollHeight - 40;
+
+        var prev = this._logRenderedLines;
+        var appendFrom = 0;
+        if (prev && prev.length > 0 && lines.length >= prev.length) {
+            var same = true;
+            for (var i = 0; i < prev.length; i++) {
+                if (cleaned[i] !== prev[i]) { same = false; break; }
+            }
+            if (same) appendFrom = prev.length;
+        }
+
+        this._logRenderedLines = cleaned;
+        if (appendFrom > 0) {
+            content.insertAdjacentHTML('beforeend', lines.slice(appendFrom).map(this._renderLogLine.bind(this)).join(''));
+        } else {
+            content.innerHTML = lines.map(this._renderLogLine.bind(this)).join('');
+        }
+        if (stick) content.scrollTop = content.scrollHeight;
     }
 
     _renderLogLine(line) {
@@ -2524,10 +2551,18 @@ class ZernMCLauncher {
         return '<div class="' + cls + '">' + this.esc(text) + '</div>';
     }
 
-    copyLogs() {
+    async copyLogs() {
         var content = document.getElementById('log-viewer-content');
         if (!content) return;
         var text = content.textContent;
+        try {
+            var r = await this.req('/clipboard', { method: 'POST', body: JSON.stringify({ text: text }) });
+            if (r && r.success) {
+                this.toast(t('logViewer.copied'), 'success');
+                return;
+            }
+        } catch(e) {}
+        // Fallback for plain-browser use (outside the launcher)
         if (navigator.clipboard && navigator.clipboard.writeText) {
             navigator.clipboard.writeText(text).then(function() {
                 app.toast(t('logViewer.copied'), 'success');
@@ -2547,6 +2582,19 @@ class ZernMCLauncher {
         }
     }
 
+    async openLogFile() {
+        try {
+            var r = await this.req('/open-log-file', { method: 'POST' });
+            if (r && r.success) {
+                this.toast(t('logViewer.opened'), 'success');
+            } else {
+                this.toast((r && r.error) || t('logViewer.openFailed'), 'error');
+            }
+        } catch(e) {
+            this.toast(t('logViewer.openFailed'), 'error');
+        }
+    }
+
     esc(s) {
         if (!s) return '';
         const d = document.createElement('div');

launcher/launcher/src/resources/ui/style.css

@@ -29,6 +29,9 @@
 
 *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
 
+html, body, * { -webkit-user-select: none; user-select: none; }
+input, textarea { -webkit-user-select: text; user-select: text; }
+
 html { font-size: 14px; }
 
 body {
@@ -226,15 +229,31 @@ body {
 }
 .section-title { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); transition: var(--transition); }
 .section-chevron { flex-shrink: 0; color: var(--text-muted); transition: transform .2s var(--ease, ease); }
+.section-collapsible { display: flex; flex-direction: column; min-height: 0; }
+.section-collapsible:not(.collapsed) { flex: 1 1 auto; }
+.section-collapsible:not(.collapsed) .section-chevron { transform: rotate(0deg); }
 .section-collapsible.collapsed .section-chevron { transform: rotate(-90deg); }
-.section-collapsible.collapsed .pack-list { display: none; }
 .section-collapsible.collapsed .section-header { margin-bottom: 0; }
 .section-collapsible.collapsed .section-title { color: var(--text-muted); }
 
+.pack-list-collapse {
+    display: grid;
+    grid-template-rows: 0fr;
+    transition: grid-template-rows .3s var(--ease, ease);
+    min-height: 0;
+    overflow: hidden;
+}
+.section-collapsible:not(.collapsed) .pack-list-collapse {
+    grid-template-rows: 1fr;
+    flex: 1;
+}
+.pack-list-collapse > .pack-list {
+    overflow-y: auto;
+    min-height: 0;
+}
+
 .pack-list {
     display: flex; flex-direction: column; gap: 3px;
-    overflow-y: auto; max-height: calc((100vh - 460px) / 2);
-    min-height: 40px;
 }
 .pack-list:empty::after {
     content: 'No packs'; display: block; padding: 12px 8px;

launcher/pom.xml

@@ -20,7 +20,7 @@
 
     <properties>
         <revision>1.0.16</revision>
-        <hotfix>18</hotfix>
+        <hotfix>21</hotfix>
         <maven.compiler.source>21</maven.compiler.source>
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>