feat: Add server management functionality with new API endpoints and update UI to include server statistics

backend/server.js

@@ -126,16 +126,87 @@ app.post('/api/asns', async (req, res) => {
     }
 });
 
+// --- Servers Routes (JSON format) ---
+
+// Get servers from S3
+app.get('/api/servers', async (req, res) => {
+    const params = {
+        Bucket: BUCKET_NAME,
+        Key: 'servers.json',
+    };
+
+    try {
+        const data = await s3.getObject(params).promise();
+        const fileContent = data.Body.toString('utf-8');
+        let servers = [];
+        
+        try {
+            servers = JSON.parse(fileContent);
+            // Ensure it's an array
+            if (!Array.isArray(servers)) {
+                servers = [];
+            }
+        } catch (parseError) {
+            console.error('Error parsing servers.json:', parseError);
+            servers = [];
+        }
+        
+        res.json(servers);
+    } catch (error) {
+        if (error.code === 'NoSuchKey') {
+            res.json([]); // Return empty array if file does not exist
+        } else {
+            console.error(error);
+            res.status(500).send('Error reading from S3');
+        }
+    }
+});
+
+// Update servers in S3
+app.post('/api/servers', async (req, res) => {
+    const { domains: servers } = req.body; // Keep name 'domains' for consistency
+    
+    // Validate servers structure
+    if (!Array.isArray(servers)) {
+        return res.status(400).send('Servers must be an array');
+    }
+    
+    // Validate each server has required fields
+    for (let i = 0; i < servers.length; i++) {
+        const server = servers[i];
+        if (!server.ip || !server.dns || !server.country || !server.provider || !server.tunnel) {
+            return res.status(400).send(`Server at index ${i} is missing required fields`);
+        }
+    }
+
+    const params = {
+        Bucket: BUCKET_NAME,
+        Key: 'servers.json',
+        Body: JSON.stringify(servers, null, 2), // Pretty print JSON
+        ContentType: 'application/json',
+    };
+
+    try {
+        await s3.putObject(params).promise();
+        res.send('File updated successfully');
+    } catch (error) {
+        console.error(error);
+        res.status(500).send('Error writing to S3');
+    }
+});
+
 // Новый эндпоинт для получения дат последнего изменения файлов S3
 app.get('/api/s3/last-modified', async (req, res) => {
     try {
-        const [domainsHead, asnsHead] = await Promise.all([
+        const [domainsHead, asnsHead, serversHead] = await Promise.all([
             s3.headObject({ Bucket: BUCKET_NAME, Key: 'domains.txt' }).promise(),
-            s3.headObject({ Bucket: BUCKET_NAME, Key: 'asns.txt' }).promise()
+            s3.headObject({ Bucket: BUCKET_NAME, Key: 'asns.txt' }).promise(),
+            s3.headObject({ Bucket: BUCKET_NAME, Key: 'servers.json' }).promise()
         ]);
         res.json({
             domainsLastModified: domainsHead.LastModified ? domainsHead.LastModified.toISOString() : null,
-            asnsLastModified: asnsHead.LastModified ? asnsHead.LastModified.toISOString() : null
+            asnsLastModified: asnsHead.LastModified ? asnsHead.LastModified.toISOString() : null,
+            serversLastModified: serversHead.LastModified ? serversHead.LastModified.toISOString() : null
         });
     } catch (error) {
         console.error(error);