Hub stage 3: compare and sync app configs across servers
The hub keeps a baseline per app in /data/apps/<app>/baseline.json. Local fields (overrides.json) are left out of the sync and out of the matrix comparison. Each server gets the baseline plus its own values. Applying goes target picker, preview with per-server diffs and warnings, then apply. Apply refuses a server whose config changed since the preview, saves the old config to history, then reads the new one back to check it. Large config bodies are read only for signed-in callers. The App config dialog has Compare, Baseline and Local fields tabs and an empty state that offers an import. Co-Authored-By: Claude Opus 5.5 <[email protected]>
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@@ -197,8 +197,8 @@ if (VARIANT === 'b') {
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}
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const appConfigs = {
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'Advanced Blocking': VARIANT === 'b'
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? { enableBlocking: true, blockingAnswerTtl: 60, networkGroupMap: { '0.0.0.0/0': 'default' }, groups: [{ name: 'default', enableBlocking: false, blockAsNxDomain: false }] }
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: { enableBlocking: true, blockingAnswerTtl: 30, networkGroupMap: { '0.0.0.0/0': 'default' }, groups: [{ name: 'default', enableBlocking: true, blockAsNxDomain: false }] },
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? { enableBlocking: true, blockingAnswerTtl: 60, localGroup: 'office', networkGroupMap: { '0.0.0.0/0': 'default' }, groups: [{ name: 'default', enableBlocking: false, blockAsNxDomain: false }] }
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: { enableBlocking: true, blockingAnswerTtl: 30, localGroup: 'home', networkGroupMap: { '0.0.0.0/0': 'default' }, groups: [{ name: 'default', enableBlocking: true, blockAsNxDomain: false }] },
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'Query Logs (Sqlite)': { enableLogging: true, maxLogDays: 365, sqliteDbPath: VARIANT === 'b' ? '/var/lib/dns/ndns/querylogs.db' : '/var/lib/dns/mdns/querylogs.db' },
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'Split Horizon': { domainGroupMap: { 'lan.example.net': 'internal' }, networkGroupMap: { '10.0.0.0/8': 'internal' } },
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}
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@@ -307,6 +307,12 @@ function route(path, q) {
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apps = update ? apps.map((a) => (a.name === name ? installed : a)) : [...apps, installed]
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return ok(update ? { updatedApp: installed } : { installedApp: installed })
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}
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case 'apps/config/set': {
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const name = q.get('name') ?? ''
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if (!apps.some((a) => a.name === name)) return { status: 'error', errorMessage: `DNS application '${name}' was not found.` }
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try { appConfigs[name] = JSON.parse(q.get('config') ?? '') } catch (e) { return { status: 'error', errorMessage: `The config is not valid JSON: ${e.message}` } }
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return ok()
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}
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case 'apps/config/get': return ok({ config: appConfigs[q.get('name')] ? JSON.stringify(appConfigs[q.get('name')], null, 2) : JSON.stringify({ enabled: true }, null, 2) })
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case 'apps/uninstall': apps = apps.filter((a) => a.name !== q.get('name')); return ok()
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case 'logs/list': return ok({ logFiles: [{ fileName: '2026-10-26', size: '412.8 KB' }, { fileName: '2026-10-25', size: '1.2 MB' }, { fileName: '2026-10-24', size: '980.4 KB' }] })
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