From bb812914b87953b01db50a22e75052f8179da9fc Mon Sep 17 00:00:00 2001
From: rattatwinko <seppmutterman@gmail.com>
Date: Wed, 6 Aug 2025 13:15:35 +0200
Subject: [PATCH] added docker deployment and added a preview to the files.

---
 .dockerignore                                 |  29 +++++
 .gitignore                                    |   1 +
 dockerfile                                    |   9 ++
 src/main/java/com/filejet/API/Server.java     |   4 +
 .../com/filejet/API/routes/DownloadRoute.java |  92 ++++++++++++-
 src/main/resources/HTML/index.html            |  10 +-
 src/main/resources/HTML/script.js             | 123 ++++++++++++++++--
 7 files changed, 249 insertions(+), 19 deletions(-)
 create mode 100644 .dockerignore
 create mode 100644 dockerfile

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..56eac86
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,29 @@
+# ---> Java
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
+
+target
+
+
diff --git a/.gitignore b/.gitignore
index a5c3a45..0ab2846 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,4 +27,5 @@ replay_pid*
 target
 
 *.env
+.idea
 
diff --git a/dockerfile b/dockerfile
new file mode 100644
index 0000000..eec6b71
--- /dev/null
+++ b/dockerfile
@@ -0,0 +1,9 @@
+#fjet dockerfile
+FROM eclipse-temurin:17-jdk
+WORKDIR /app
+COPY pom.xml mvnw* .mvn/ ./
+COPY src ./src
+RUN ./mvnw clean package -DskipTests
+RUN cp target/*.jar fjet.jar
+EXPOSE 8080
+CMD ["java", "-jar", "fjet.jar"]
diff --git a/src/main/java/com/filejet/API/Server.java b/src/main/java/com/filejet/API/Server.java
index 4e4b049..34e5670 100644
--- a/src/main/java/com/filejet/API/Server.java
+++ b/src/main/java/com/filejet/API/Server.java
@@ -15,6 +15,10 @@ public class Server {
         app.get("/api/download", DownloadRoute::handle); // for ?path=... downloads
         app.get("/api/download/{file}", DownloadRoute::handle); // legacy/compat
         app.get("/api/list-isos", DownloadRoute::list);
+        app.get("/api/view", DownloadRoute::view); // for file preview
+
+        // New endpoint for directory version/hash
+        app.get("/api/dir-version", DownloadRoute::dirVersion);
 
         app.before("/api/*", ctx -> {
             String ua = ctx.header("User-Agent");
diff --git a/src/main/java/com/filejet/API/routes/DownloadRoute.java b/src/main/java/com/filejet/API/routes/DownloadRoute.java
index be42955..97237d9 100644
--- a/src/main/java/com/filejet/API/routes/DownloadRoute.java
+++ b/src/main/java/com/filejet/API/routes/DownloadRoute.java
@@ -30,11 +30,6 @@ public class DownloadRoute {
             if (resource == null) {
                 ctx.status(404).json(new String[]{"Directory not found"});
                 return;
-                // Helper: construct the full resource path from isoDir and relPath
-                private static String getFullPath(String relPath) {
-                    String basePath = isoDir.endsWith("/") ? isoDir : isoDir + "/";
-                    return basePath + (relPath.startsWith("/") ? relPath.substring(1) : relPath);
-                }
             }
             File dir = new File(resource.toURI());
             if (!dir.exists() || !dir.isDirectory()) {
@@ -71,6 +66,12 @@ public class DownloadRoute {
         }
     }
 
+    // Helper: construct the full resource path from isoDir and relPath
+    private static String getFullPath(String relPath) {
+        String basePath = isoDir.endsWith("/") ? isoDir : isoDir + "/";
+        return basePath + (relPath.startsWith("/") ? relPath.substring(1) : relPath);
+    }
+
     // Helper: recursively search for files/folders containing searchTerm, add to result with relative path
     private static void recursiveSearch(File dir, String relPath, String searchTerm, List<Map<String, Object>> result) {
         File[] files = dir.listFiles();
@@ -147,4 +148,85 @@ public class DownloadRoute {
             ctx.status(500).result("Error: " + e.getMessage());
         }
     }
+    // TODO: Fix the refreshing of the files. it should be done
+    // but fucking isnt. idk what the fuck is going on
+
+    // Serve text/code file content for preview
+    public static void view(Context ctx) {
+        String relPath = ctx.queryParam("path");
+        if (relPath == null || relPath.isEmpty()) {
+            ctx.status(400).result("Missing file path");
+            return;
+        }
+        try {
+            var classLoader = Thread.currentThread().getContextClassLoader();
+            String fullPath = getFullPath(relPath);
+            var resource = classLoader.getResource(fullPath);
+            if (resource == null) {
+                ctx.status(404).result("Not Found!");
+                return;
+            }
+            File file = new File(resource.toURI());
+            if (!file.exists() || !file.isFile()) {
+                ctx.status(404).result("Not Found!");
+                return;
+            }
+            // Only allow preview for small files (e.g. <1MB)
+            if (file.length() > 1024 * 1024) {
+                ctx.status(413).result("File too large to preview");
+                return;
+            }
+            // Try to detect text
+            String mime = ctx.header("Accept");
+            if (mime == null || mime.isEmpty()) mime = "text/plain";
+            ctx.res().setContentType(mime);
+            try (InputStream is = new FileInputStream(file)) {
+                String text = new String(is.readAllBytes(), java.nio.charset.StandardCharsets.UTF_8);
+                ctx.result(text);
+            }
+        } catch (Exception e) {
+            ctx.status(500).result("Error: " + e.getMessage());
+        }
+    }
+    // Returns a hash/version of the directory contents for change detection
+    public static void dirVersion(io.javalin.http.Context ctx) {
+        String relPath = ctx.queryParam("path");
+        if (relPath == null || relPath.isEmpty()) relPath = "/";
+        try {
+            var classLoader = Thread.currentThread().getContextClassLoader();
+            String fullPath = getFullPath(relPath);
+            var resource = classLoader.getResource(fullPath);
+            if (resource == null) {
+                ctx.status(404).result("Directory not found");
+                return;
+            }
+            File dir = new File(resource.toURI());
+            if (!dir.exists() || !dir.isDirectory()) {
+                ctx.status(404).result("Not a directory");
+                return;
+            }
+            // Compute a hash based on file names and last modified times
+            java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
+            File[] files = dir.listFiles();
+            if (files != null) {
+                for (File f : files) {
+                    md.update(f.getName().getBytes());
+                    md.update(Long.toString(f.lastModified()).getBytes());
+                }
+            }
+            String hash = bytesToHex(md.digest());
+            ctx.json(java.util.Collections.singletonMap("version", hash));
+        } catch (Exception e) {
+            ctx.status(500).result("Error: " + e.getMessage());
+        }
+    }
+
+    // Helper: convert byte array to hex string (replacement for DatatypeConverter.printHexBinary)
+    private static String bytesToHex(byte[] bytes) {
+        StringBuilder sb = new StringBuilder();
+        for (byte b : bytes) {
+            sb.append(String.format("%02X", b));
+        }
+        return sb.toString();
+    }
 }
diff --git a/src/main/resources/HTML/index.html b/src/main/resources/HTML/index.html
index 7ec8e7b..a609cfb 100644
--- a/src/main/resources/HTML/index.html
+++ b/src/main/resources/HTML/index.html
@@ -21,6 +21,7 @@
             </div>
         </div>
 
+
         <div class="main-content">
             <div class="file-header">
                 <div></div>
@@ -30,10 +31,17 @@
                 <div>MODIFIED</div>
                 <div>ACTION</div>
             </div>
-            
             <div id="file-list" class="file-list"></div>
         </div>
 
+        <!-- File preview modal -->
+        <div id="preview-modal" style="display:none; position:fixed; top:0; left:0; width:100vw; height:100vh; background:rgba(0,0,0,0.85); z-index:1000; align-items:center; justify-content:center;">
+            <div style="background:#181818; color:#eee; max-width:80vw; max-height:80vh; min-width:320px; min-height:120px; border-radius:8px; box-shadow:0 2px 16px #000; padding:24px; position:relative; display:flex; flex-direction:column;">
+                <button id="close-preview" style="position:absolute; top:8px; right:12px; background:#222; color:#fff; border:none; font-size:18px; cursor:pointer;">&times;</button>
+                <pre id="preview-content" style="overflow:auto; font-family:monospace; font-size:15px; background:none; color:inherit; margin:0; white-space:pre-wrap;"></pre>
+            </div>
+        </div>
+
         <div class="status-bar">
             <div id="status-text">Ready</div>
             <div class="help-text">
diff --git a/src/main/resources/HTML/script.js b/src/main/resources/HTML/script.js
index 49a9fff..c9a0eb3 100644
--- a/src/main/resources/HTML/script.js
+++ b/src/main/resources/HTML/script.js
@@ -57,6 +57,11 @@ document.addEventListener('DOMContentLoaded', () => {
                 forwardStack = [];
                 selectedIndex = -1;
                 fetchFiles();
+            } else if (isPreviewable(item.name)) {
+                // Preview file
+                let cur = getCurrentPath();
+                let filePath = cur.endsWith('/') ? cur + item.name : cur + '/' + item.name;
+                showPreview(filePath, item.name);
             } else {
                 // Download file
                 let cur = getCurrentPath();
@@ -64,9 +69,73 @@ document.addEventListener('DOMContentLoaded', () => {
                 window.location.href = `/api/download?path=${encodeURIComponent(filePath)}`;
             }
         }
+    // Returns true if file is previewable (text, md, code, etc)
+    function isPreviewable(name) {
+        return /\.(txt|md|js|ts|json|css|html?|java|py|c|cpp|h|xml|sh|bat|ini|conf|log|csv|yml|yaml|go|rs|php|rb|pl|swift|kt|scala|cs|sql)$/i.test(name);
     }
 
-    function fetchFiles(searchTerm = '') {
+    // Show preview modal and fetch file content
+    function showPreview(filePath, fileName) {
+        const modal = document.getElementById('preview-modal');
+        const content = document.getElementById('preview-content');
+        modal.style.display = 'flex';
+        content.textContent = 'Loading...';
+        fetch(`/api/view?path=${encodeURIComponent(filePath)}`)
+            .then(res => {
+                if (!res.ok) throw new Error('Failed to load file');
+                return res.text();
+            })
+            .then(text => {
+                content.textContent = text;
+            })
+            .catch(err => {
+                content.textContent = 'Error: ' + err.message;
+            });
+    }
+
+    // Close preview modal
+    document.addEventListener('DOMContentLoaded', () => {
+        const modal = document.getElementById('preview-modal');
+        const closeBtn = document.getElementById('close-preview');
+        if (closeBtn) {
+            closeBtn.onclick = () => {
+                modal.style.display = 'none';
+            };
+        }
+        modal.onclick = (e) => {
+            if (e.target === modal) modal.style.display = 'none';
+        };
+    });
+    }
+
+    // Returns true if file is previewable (text, md, code, etc)
+    function isPreviewable(name) {
+        return /\.(txt|md|js|ts|json|css|html?|java|py|c|cpp|h|xml|sh|bat|ini|conf|log|csv|yml|yaml|go|rs|php|rb|pl|swift|kt|scala|cs|sql|java|cpp|c|py|rs|toml)$/i.test(name);
+    }
+
+    // Show preview modal and fetch file content
+    function showPreview(filePath, fileName) {
+        const modal = document.getElementById('preview-modal');
+        const content = document.getElementById('preview-content');
+        modal.style.display = 'flex';
+        content.textContent = 'Loading...';
+        fetch(`/api/view?path=${encodeURIComponent(filePath)}`)
+            .then(res => {
+                if (!res.ok) throw new Error('Failed to load file');
+                return res.text();
+            })
+            .then(text => {
+                content.textContent = text;
+            })
+            .catch(err => {
+                content.textContent = 'Error: ' + err.message;
+            });
+    }
+
+    let lastDirVersion = null;
+    let dirVersionPoller = null;
+
+    function fetchFiles(searchTerm = '', skipVersionCheck = false) {
         setAddressBar();
         statusText.textContent = 'Loading...';
         let path = getCurrentPath();
@@ -93,14 +162,12 @@ document.addEventListener('DOMContentLoaded', () => {
                     const div = document.createElement('div');
                     div.className = 'file-item';
                     div.dataset.index = index;
-                    
                     // Icon
                     const icon = document.createElement('img');
                     icon.className = 'icon';
                     icon.src = item.isDir ? 'data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTYiIGhlaWdodD0iMTYiIHZpZXdCb3g9IjAgMCAxNiAxNiIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPHBhdGggZD0iTTIgM0MxLjQ0NzcyIDMgMSAzLjQ0NzcyIDEgNFYxMkMxIDEyLjU1MjMgMS40NDc3MiAxMyAyIDEzSDE0QzE0LjU1MjMgMTMgMTUgMTIuNTUyMyAxNSAxMlY2QzE1IDUuNDQ3NzIgMTQuNTUyMyA1IDE0IDVIOEw2IDNIMloiIGZpbGw9IiNGRkQ3MDAiLz4KPC9zdmc+' : 'data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTYiIGhlaWdodD0iMTYiIHZpZXdCb3g9IjAgMCAxNiAxNiIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPHBhdGggZD0iTTMgM0MyLjQ0NzcyIDMgMiAzLjQ0NzcyIDIgNFYxMkMyIDEyLjU1MjMgMi40NDc3MiAxMyAzIDEzSDEzQzEzLjU1MjMgMTMgMTQgMTIuNTUyMyAxNCAxMlY0QzE0IDMuNDQ3NzIgMTMuNTUyMyAzIDEzIDNIM1oiIGZpbGw9IiM4ODg4ODgiLz4KPC9zdmc+';
                     icon.onerror = () => icon.style.display = 'none';
                     div.appendChild(icon);
-                    
                     // Name (show relative path if searching)
                     const nameSpan = document.createElement('span');
                     nameSpan.className = 'file-name';
@@ -110,25 +177,21 @@ document.addEventListener('DOMContentLoaded', () => {
                         nameSpan.textContent = item.name;
                     }
                     div.appendChild(nameSpan);
-                    
                     // Type
                     const typeSpan = document.createElement('span');
                     typeSpan.className = 'file-type';
                     typeSpan.textContent = item.isDir ? 'Folder' : 'File';
                     div.appendChild(typeSpan);
-                    
                     // Size
                     const sizeSpan = document.createElement('span');
                     sizeSpan.className = 'file-size';
                     sizeSpan.textContent = item.isDir ? '' : '-';
                     div.appendChild(sizeSpan);
-                    
                     // Date Modified
                     const dateSpan = document.createElement('span');
                     dateSpan.className = 'file-date';
                     dateSpan.textContent = '';
                     div.appendChild(dateSpan);
-                    
                     // Action
                     const actionDiv = document.createElement('div');
                     if (!item.isDir) {
@@ -144,20 +207,21 @@ document.addEventListener('DOMContentLoaded', () => {
                         actionDiv.appendChild(dlBtn);
                     }
                     div.appendChild(actionDiv);
-                    
                     // Click handlers
-                    div.onclick = () => {
+                    div.onclick = (e) => {
                         selectItem(index);
                         if (item.isDir) {
-                            setTimeout(() => openSelectedItem(), 200);
+                            openSelectedItem();
+                        } else if (isPreviewable(item.name)) {
+                            // Open preview immediately on single click
+                            let cur = getCurrentPath();
+                            let filePath = cur.endsWith('/') ? cur + item.name : cur + '/' + item.name;
+                            showPreview(filePath, item.name);
                         }
                     };
-                    
                     fileList.appendChild(div);
                 });
-                
                 statusText.textContent = `${items.length} item${items.length !== 1 ? 's' : ''}`;
-                
                 // Update button states
                 backBtn.disabled = historyIndex <= 0;
                 forwardBtn.disabled = historyIndex >= history.length - 1;
@@ -167,6 +231,39 @@ document.addEventListener('DOMContentLoaded', () => {
                 fileList.innerHTML = `<div class="file-item" style="grid-column: 1 / -1; text-align: center; color: #d9534f;">${err.message}</div>`;
                 statusText.textContent = 'Error loading files';
             });
+
+        // Start polling for directory version if not already started
+        if (!skipVersionCheck && !dirVersionPoller) {
+            startDirVersionPolling();
+        }
+    }
+
+    function startDirVersionPolling() {
+        if (dirVersionPoller) clearInterval(dirVersionPoller);
+        let path = getCurrentPath();
+        function poll() {
+            fetch(`/api/dir-version?path=${encodeURIComponent(path)}`)
+                .then(res => res.ok ? res.json() : null)
+                .then(data => {
+                    if (!data || !data.version) return;
+                    if (lastDirVersion && data.version !== lastDirVersion) {
+                        // Directory changed, refresh file list
+                        fetchFiles('', true); // skipVersionCheck=true to avoid infinite loop
+                    }
+                    lastDirVersion = data.version;
+                })
+                .catch(() => {});
+        }
+        poll();
+        dirVersionPoller = setInterval(poll, 3000); // poll every 3 seconds
+    }
+
+    // Stop polling when navigating away
+    function stopDirVersionPolling() {
+        if (dirVersionPoller) {
+            clearInterval(dirVersionPoller);
+            dirVersionPoller = null;
+        }
     }
 
     // Navigation event handlers