feat(memos-local): add data export endpoint and UI (closes #1474)

apps/memos-local-openclaw/src/storage/sqlite.ts

@@ -2873,6 +2873,39 @@ export class SqliteStore {
     return result;
   }
 
+  // ─── Export ───
+
+  exportAll(): { memories: unknown[]; tasks: unknown[]; skills: unknown[] } {
+    const memories = this.db.prepare(
+      "SELECT * FROM chunks ORDER BY created_at ASC",
+    ).all();
+
+    const tasks = this.db.prepare(
+      "SELECT * FROM tasks ORDER BY started_at ASC",
+    ).all();
+
+    const skills = this.db.prepare(
+      "SELECT id, name, description, content, version, status, visibility, owner, created_at, updated_at FROM skills ORDER BY created_at ASC",
+    ).all();
+
+    return { memories, tasks, skills };
+  }
+
+  exportMemoriesAsCsv(): string {
+    const rows = this.db.prepare(
+      "SELECT id, session_key, role, summary, content, created_at FROM chunks ORDER BY created_at ASC",
+    ).all() as Array<{ id: string; session_key: string; role: string; summary: string; content: string; created_at: number }>;
+
+    const escape = (v: string) => `"${String(v ?? "").replace(/"/g, '""')}"`;
+    const header = ["id", "session_key", "role", "summary", "content", "created_at"].join(",");
+    const lines = rows.map((r) =>
+      [r.id, r.session_key, r.role, r.summary, r.content, new Date(r.created_at).toISOString()]
+        .map(escape)
+        .join(","),
+    );
+    return [header, ...lines].join("\n");
+  }
+
   close(): void {
     this.db.close();
   }

apps/memos-local-openclaw/src/viewer/html.ts

@@ -1837,6 +1837,13 @@ input,textarea,select{font-family:inherit;font-size:inherit}
               <button class="btn btn-ghost" onclick="loadConfig()" data-i18n="settings.reset">Reset</button>
               <button class="btn btn-primary" onclick="saveGeneralConfig()" data-i18n="settings.save">Save Settings</button>
             </div>
+            <div class="settings-card-divider"></div>
+            <div class="settings-card-subtitle" data-i18n="settings.export">\u{1F4E4} Export Data</div>
+            <div class="field-hint" style="margin-bottom:10px" data-i18n="settings.export.hint">Download all your memories, tasks, and skills as a backup file. Choose JSON for full data or CSV for memories only.</div>
+            <div style="display:flex;gap:8px;flex-wrap:wrap">
+              <button class="btn btn-ghost" onclick="exportData('json')" data-i18n="settings.export.json">\u2B07 Export JSON (full backup)</button>
+              <button class="btn btn-ghost" onclick="exportData('csv')" data-i18n="settings.export.csv">\u2B07 Export CSV (memories only)</button>
+            </div>
           </div>
         </div>
 
@@ -2327,6 +2334,10 @@ const I18N={
     'settings.telemetry':'Telemetry',
     'settings.telemetry.enabled':'Enable Anonymous Telemetry',
     'settings.telemetry.hint':'Only collects tool names, latencies and version info. No memory content or personal data.',
+    'settings.export':'Export Data',
+    'settings.export.hint':'Download all your memories, tasks, and skills as a backup file.',
+    'settings.export.json':'Export JSON (full backup)',
+    'settings.export.csv':'Export CSV (memories only)',
     'settings.viewerport':'Viewer Port',
     'settings.viewerport.hint':'Requires restart to take effect',
     'settings.taskAutoFinalize':'Task Auto-Finalize (hours)',
@@ -3100,6 +3111,10 @@ const I18N={
     'settings.telemetry':'数据统计',
     'settings.telemetry.enabled':'启用匿名数据统计',
     'settings.telemetry.hint':'仅收集工具名称、响应时间和版本号，不涉及任何记忆内容或个人数据。',
+    'settings.export':'导出数据',
+    'settings.export.hint':'将所有记忆、任务和技能下载为备份文件。',
+    'settings.export.json':'导出 JSON（完整备份）',
+    'settings.export.csv':'导出 CSV（仅记忆）',
     'settings.viewerport':'Viewer 端口',
     'settings.viewerport.hint':'修改后需重启网关生效',
     'settings.taskAutoFinalize':'任务自动完结（小时）',
@@ -7493,6 +7508,16 @@ async function saveHubConfig(){
   }
 }
 
+function exportData(format){
+  var url='/api/export?format='+encodeURIComponent(format);
+  var a=document.createElement('a');
+  a.href=url;
+  a.style.display='none';
+  document.body.appendChild(a);
+  a.click();
+  document.body.removeChild(a);
+}
+
 async function saveGeneralConfig(){
   var card=document.querySelector('.card-general');
   var saveBtn=card.querySelector('.settings-actions .btn-primary');

apps/memos-local-openclaw/src/viewer/server.ts

@@ -395,6 +395,7 @@ export class ViewerServer {
       else if (p === "/api/migrate/postprocess/stream" && req.method === "GET") this.handlePostprocessStream(res);
       else if (p === "/api/migrate/postprocess/stop" && req.method === "POST") this.handlePostprocessStop(res);
       else if (p === "/api/migrate/postprocess/status" && req.method === "GET") this.handlePostprocessStatus(res);
+      else if (p === "/api/export" && req.method === "GET") this.handleExport(res, url);
       else {
         res.writeHead(404, { "Content-Type": "application/json" });
         res.end(JSON.stringify({ error: "not found" }));
@@ -3014,6 +3015,42 @@ export class ViewerServer {
     res.end(JSON.stringify({ ips }));
   }
 
+  // ─── Export ───
+
+  private handleExport(res: http.ServerResponse, url: URL): void {
+    const format = url.searchParams.get("format") ?? "json";
+    const now = new Date().toISOString().replace(/[:.]/g, "-").slice(0, 19);
+
+    try {
+      if (format === "csv") {
+        const csv = this.store.exportMemoriesAsCsv();
+        const filename = `memos-memories-${now}.csv`;
+        res.writeHead(200, {
+          "Content-Type": "text/csv; charset=utf-8",
+          "Content-Disposition": `attachment; filename="${filename}"`,
+        });
+        res.end(csv);
+      } else {
+        const data = this.store.exportAll();
+        const payload = JSON.stringify(
+          { exportedAt: new Date().toISOString(), version: 1, ...data },
+          null,
+          2,
+        );
+        const filename = `memos-export-${now}.json`;
+        res.writeHead(200, {
+          "Content-Type": "application/json",
+          "Content-Disposition": `attachment; filename="${filename}"`,
+        });
+        res.end(payload);
+      }
+    } catch (err) {
+      this.log.error(`Export failed: ${err}`);
+      res.writeHead(500, { "Content-Type": "application/json" });
+      res.end(JSON.stringify({ error: String(err) }));
+    }
+  }
+
   private serveConfig(res: http.ServerResponse): void {
     try {
       const cfgPath = this.getOpenClawConfigPath();