Add JSON import for MCP servers (#385)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: samanhappy <2755122+samanhappy@users.noreply.github.com>
Co-authored-by: samanhappy <samanhappy@gmail.com>

frontend/src/components/JSONImportForm.tsx

@@ -0,0 +1,311 @@
+import React, { useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { apiPost } from '@/utils/fetchInterceptor';
+
+interface JSONImportFormProps {
+  onSuccess: () => void;
+  onCancel: () => void;
+}
+
+interface McpServerConfig {
+  command?: string;
+  args?: string[];
+  env?: Record<string, string>;
+  type?: string;
+  url?: string;
+  headers?: Record<string, string>;
+}
+
+interface ImportJsonFormat {
+  mcpServers: Record<string, McpServerConfig>;
+}
+
+const JSONImportForm: React.FC<JSONImportFormProps> = ({ onSuccess, onCancel }) => {
+  const { t } = useTranslation();
+  const [jsonInput, setJsonInput] = useState('');
+  const [error, setError] = useState<string | null>(null);
+  const [isImporting, setIsImporting] = useState(false);
+  const [previewServers, setPreviewServers] = useState<Array<{ name: string; config: any }> | null>(
+    null,
+  );
+
+  const examplePlaceholder = `STDIO example:
+{
+  "mcpServers": {
+    "stdio-server-example": {
+      "command": "npx",
+      "args": ["-y", "mcp-server-example"]
+    }
+  }
+}
+
+SSE example:
+{
+  "mcpServers": {
+    "sse-server-example": {
+      "type": "sse",
+      "url": "http://localhost:3000"
+    }
+  }
+}
+
+HTTP example:
+{
+  "mcpServers": {
+    "http-server-example": {
+      "type": "streamable-http",
+      "url": "http://localhost:3001",
+      "headers": {
+        "Content-Type": "application/json",
+        "Authorization": "Bearer your-token"
+      }
+    }
+  }
+}`;
+
+  const parseAndValidateJson = (input: string): ImportJsonFormat | null => {
+    try {
+      const parsed = JSON.parse(input.trim());
+
+      // Validate structure
+      if (!parsed.mcpServers || typeof parsed.mcpServers !== 'object') {
+        setError(t('jsonImport.invalidFormat'));
+        return null;
+      }
+
+      return parsed as ImportJsonFormat;
+    } catch (e) {
+      setError(t('jsonImport.parseError'));
+      return null;
+    }
+  };
+
+  const handlePreview = () => {
+    setError(null);
+    const parsed = parseAndValidateJson(jsonInput);
+    if (!parsed) return;
+
+    const servers = Object.entries(parsed.mcpServers).map(([name, config]) => {
+      // Normalize config to MCPHub format
+      const normalizedConfig: any = {};
+
+      if (config.type === 'sse' || config.type === 'streamable-http') {
+        normalizedConfig.type = config.type;
+        normalizedConfig.url = config.url;
+        if (config.headers) {
+          normalizedConfig.headers = config.headers;
+        }
+      } else {
+        // Default to stdio
+        normalizedConfig.type = 'stdio';
+        normalizedConfig.command = config.command;
+        normalizedConfig.args = config.args || [];
+        if (config.env) {
+          normalizedConfig.env = config.env;
+        }
+      }
+
+      return { name, config: normalizedConfig };
+    });
+
+    setPreviewServers(servers);
+  };
+
+  const handleImport = async () => {
+    if (!previewServers) return;
+
+    setIsImporting(true);
+    setError(null);
+
+    try {
+      let successCount = 0;
+      const errors: string[] = [];
+
+      for (const server of previewServers) {
+        try {
+          const result = await apiPost('/servers', {
+            name: server.name,
+            config: server.config,
+          });
+
+          if (result.success) {
+            successCount++;
+          } else {
+            errors.push(`${server.name}: ${result.message || t('jsonImport.addFailed')}`);
+          }
+        } catch (err) {
+          errors.push(
+            `${server.name}: ${err instanceof Error ? err.message : t('jsonImport.addFailed')}`,
+          );
+        }
+      }
+
+      if (errors.length > 0) {
+        setError(
+          t('jsonImport.partialSuccess', { count: successCount, total: previewServers.length }) +
+            '\n' +
+            errors.join('\n'),
+        );
+      }
+
+      if (successCount > 0) {
+        onSuccess();
+      }
+    } catch (err) {
+      console.error('Import error:', err);
+      setError(t('jsonImport.importFailed'));
+    } finally {
+      setIsImporting(false);
+    }
+  };
+
+  return (
+    <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4">
+      <div className="bg-white shadow rounded-lg p-6 w-full max-w-4xl max-h-[90vh] overflow-y-auto">
+        <div className="flex justify-between items-center mb-6">
+          <h2 className="text-xl font-semibold text-gray-900">{t('jsonImport.title')}</h2>
+          <button onClick={onCancel} className="text-gray-500 hover:text-gray-700">
+            ✕
+          </button>
+        </div>
+
+        {error && (
+          <div className="mb-4 bg-red-50 border-l-4 border-red-500 p-4 rounded">
+            <p className="text-red-700 whitespace-pre-wrap">{error}</p>
+          </div>
+        )}
+
+        {!previewServers ? (
+          <div>
+            <div className="mb-4">
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                {t('jsonImport.inputLabel')}
+              </label>
+              <textarea
+                value={jsonInput}
+                onChange={(e) => setJsonInput(e.target.value)}
+                className="w-full h-96 px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 font-mono text-sm"
+                placeholder={examplePlaceholder}
+              />
+              <p className="text-xs text-gray-500 mt-2">{t('jsonImport.inputHelp')}</p>
+            </div>
+
+            <div className="flex justify-end space-x-4">
+              <button
+                onClick={onCancel}
+                className="px-4 py-2 text-gray-700 bg-gray-200 rounded hover:bg-gray-300 btn-secondary"
+              >
+                {t('common.cancel')}
+              </button>
+              <button
+                onClick={handlePreview}
+                disabled={!jsonInput.trim()}
+                className="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50 btn-primary"
+              >
+                {t('jsonImport.preview')}
+              </button>
+            </div>
+          </div>
+        ) : (
+          <div>
+            <div className="mb-4">
+              <h3 className="text-lg font-medium text-gray-900 mb-3">
+                {t('jsonImport.previewTitle')}
+              </h3>
+              <div className="space-y-3">
+                {previewServers.map((server, index) => (
+                  <div key={index} className="bg-gray-50 p-4 rounded-lg border border-gray-200">
+                    <div className="flex items-start justify-between">
+                      <div className="flex-1">
+                        <h4 className="font-medium text-gray-900">{server.name}</h4>
+                        <div className="mt-2 space-y-1 text-sm text-gray-600">
+                          <div>
+                            <strong>{t('server.type')}:</strong> {server.config.type || 'stdio'}
+                          </div>
+                          {server.config.command && (
+                            <div>
+                              <strong>{t('server.command')}:</strong> {server.config.command}
+                            </div>
+                          )}
+                          {server.config.args && server.config.args.length > 0 && (
+                            <div>
+                              <strong>{t('server.arguments')}:</strong>{' '}
+                              {server.config.args.join(' ')}
+                            </div>
+                          )}
+                          {server.config.url && (
+                            <div>
+                              <strong>{t('server.url')}:</strong> {server.config.url}
+                            </div>
+                          )}
+                          {server.config.env && Object.keys(server.config.env).length > 0 && (
+                            <div>
+                              <strong>{t('server.envVars')}:</strong>{' '}
+                              {Object.keys(server.config.env).join(', ')}
+                            </div>
+                          )}
+                          {server.config.headers &&
+                            Object.keys(server.config.headers).length > 0 && (
+                              <div>
+                                <strong>{t('server.headers')}:</strong>{' '}
+                                {Object.keys(server.config.headers).join(', ')}
+                              </div>
+                            )}
+                        </div>
+                      </div>
+                    </div>
+                  </div>
+                ))}
+              </div>
+            </div>
+
+            <div className="flex justify-end space-x-4">
+              <button
+                onClick={() => setPreviewServers(null)}
+                disabled={isImporting}
+                className="px-4 py-2 text-gray-700 bg-gray-200 rounded hover:bg-gray-300 disabled:opacity-50 btn-secondary"
+              >
+                {t('common.back')}
+              </button>
+              <button
+                onClick={handleImport}
+                disabled={isImporting}
+                className="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50 flex items-center btn-primary"
+              >
+                {isImporting ? (
+                  <>
+                    <svg
+                      className="animate-spin h-4 w-4 mr-2"
+                      xmlns="http://www.w3.org/2000/svg"
+                      fill="none"
+                      viewBox="0 0 24 24"
+                    >
+                      <circle
+                        className="opacity-25"
+                        cx="12"
+                        cy="12"
+                        r="10"
+                        stroke="currentColor"
+                        strokeWidth="4"
+                      ></circle>
+                      <path
+                        className="opacity-75"
+                        fill="currentColor"
+                        d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
+                      ></path>
+                    </svg>
+                    {t('jsonImport.importing')}
+                  </>
+                ) : (
+                  t('jsonImport.import')
+                )}
+              </button>
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default JSONImportForm;

frontend/src/pages/ServersPage.tsx

@@ -7,6 +7,7 @@ import AddServerForm from '@/components/AddServerForm';
 import EditServerForm from '@/components/EditServerForm';
 import { useServerData } from '@/hooks/useServerData';
 import DxtUploadForm from '@/components/DxtUploadForm';
+import JSONImportForm from '@/components/JSONImportForm';
 
 const ServersPage: React.FC = () => {
   const { t } = useTranslation();
@@ -25,6 +26,7 @@ const ServersPage: React.FC = () => {
   const [editingServer, setEditingServer] = useState<Server | null>(null);
   const [isRefreshing, setIsRefreshing] = useState(false);
   const [showDxtUpload, setShowDxtUpload] = useState(false);
+  const [showJsonImport, setShowJsonImport] = useState(false);
 
   const handleEditClick = async (server: Server) => {
     const fullServerData = await handleServerEdit(server);
@@ -55,6 +57,12 @@ const ServersPage: React.FC = () => {
     triggerRefresh();
   };
 
+  const handleJsonImportSuccess = () => {
+    // Close import dialog and refresh servers
+    setShowJsonImport(false);
+    triggerRefresh();
+  };
+
   return (
     <div>
       <div className="flex justify-between items-center mb-8">
@@ -70,6 +78,15 @@ const ServersPage: React.FC = () => {
             {t('nav.market')}
           </button>
           <AddServerForm onAdd={handleServerAdd} />
+          <button
+            onClick={() => setShowJsonImport(true)}
+            className="px-4 py-2 bg-blue-100 text-blue-800 rounded hover:bg-blue-200 flex items-center btn-primary transition-all duration-200"
+          >
+            <svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4 mr-2" viewBox="0 0 20 20" fill="currentColor">
+              <path fillRule="evenodd" d="M3 17a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM6.293 6.707a1 1 0 010-1.414l3-3a1 1 0 011.414 0l3 3a1 1 0 01-1.414 1.414L11 5.414V13a1 1 0 11-2 0V5.414L7.707 6.707a1 1 0 01-1.414 0z" clipRule="evenodd" />
+            </svg>
+            {t('jsonImport.button')}
+          </button>
           <button
             onClick={() => setShowDxtUpload(true)}
             className="px-4 py-2 bg-blue-100 text-blue-800 rounded hover:bg-blue-200 flex items-center btn-primary transition-all duration-200"
@@ -161,6 +178,13 @@ const ServersPage: React.FC = () => {
           onCancel={() => setShowDxtUpload(false)}
         />
       )}
+
+      {showJsonImport && (
+        <JSONImportForm
+          onSuccess={handleJsonImportSuccess}
+          onCancel={() => setShowJsonImport(false)}
+        />
+      )}
     </div>
   );
 };