feat(dns): add db-backed DNS provider, domain, and record management with ops UI support

ts/dns/providers/cloudflare.provider.ts

@@ -0,0 +1,139 @@
+import * as plugins from '../../plugins.js';
+import { logger } from '../../logger.js';
+import type {
+  IDnsProviderClient,
+  IConnectionTestResult,
+  IProviderRecord,
+  IProviderRecordInput,
+} from './interfaces.js';
+import type { IProviderDomainListing } from '../../../ts_interfaces/data/dns-provider.js';
+import type { TDnsRecordType } from '../../../ts_interfaces/data/dns-record.js';
+
+/**
+ * Cloudflare implementation of IDnsProviderClient.
+ *
+ * Wraps `@apiclient.xyz/cloudflare`. Records at Cloudflare are addressed by
+ * an internal record id, which we surface as `providerRecordId` so the rest
+ * of the system can issue updates and deletes without ambiguity (Cloudflare
+ * can have multiple records of the same name+type).
+ */
+export class CloudflareDnsProvider implements IDnsProviderClient {
+  private cfAccount: plugins.cloudflare.CloudflareAccount;
+
+  constructor(apiToken: string) {
+    if (!apiToken) {
+      throw new Error('CloudflareDnsProvider: apiToken is required');
+    }
+    this.cfAccount = new plugins.cloudflare.CloudflareAccount(apiToken);
+  }
+
+  /**
+   * Returns the underlying CloudflareAccount — used by ACME DNS-01
+   * to wrap into a smartacme Dns01Handler.
+   */
+  public getCloudflareAccount(): plugins.cloudflare.CloudflareAccount {
+    return this.cfAccount;
+  }
+
+  public async testConnection(): Promise<IConnectionTestResult> {
+    try {
+      // Listing zones is the lightest-weight call that proves the token works.
+      await this.cfAccount.zoneManager.listZones();
+      return { ok: true };
+    } catch (err: unknown) {
+      const message = err instanceof Error ? err.message : String(err);
+      logger.log('warn', `CloudflareDnsProvider testConnection failed: ${message}`);
+      return { ok: false, error: message };
+    }
+  }
+
+  public async listDomains(): Promise<IProviderDomainListing[]> {
+    const zones = await this.cfAccount.zoneManager.listZones();
+    return zones.map((zone) => ({
+      name: zone.name,
+      externalId: zone.id,
+      nameservers: zone.name_servers ?? [],
+    }));
+  }
+
+  public async listRecords(domain: string): Promise<IProviderRecord[]> {
+    const records = await this.cfAccount.recordManager.listRecords(domain);
+    return records
+      .filter((r) => this.isSupportedType(r.type))
+      .map((r) => ({
+        providerRecordId: r.id,
+        name: r.name,
+        type: r.type as TDnsRecordType,
+        value: r.content,
+        ttl: r.ttl,
+        proxied: r.proxied,
+      }));
+  }
+
+  public async createRecord(
+    domain: string,
+    record: IProviderRecordInput,
+  ): Promise<IProviderRecord> {
+    const zoneId = await this.cfAccount.zoneManager.getZoneId(domain);
+    const apiRecord: any = {
+      zone_id: zoneId,
+      type: record.type,
+      name: record.name,
+      content: record.value,
+      ttl: record.ttl ?? 1, // 1 = automatic
+    };
+    if (record.proxied !== undefined) {
+      apiRecord.proxied = record.proxied;
+    }
+    const created = await (this.cfAccount as any).apiAccount.dns.records.create(apiRecord);
+    return {
+      providerRecordId: created.id,
+      name: created.name,
+      type: created.type as TDnsRecordType,
+      value: created.content,
+      ttl: created.ttl,
+      proxied: created.proxied,
+    };
+  }
+
+  public async updateRecord(
+    domain: string,
+    providerRecordId: string,
+    record: IProviderRecordInput,
+  ): Promise<IProviderRecord> {
+    const zoneId = await this.cfAccount.zoneManager.getZoneId(domain);
+    const apiRecord: any = {
+      zone_id: zoneId,
+      type: record.type,
+      name: record.name,
+      content: record.value,
+      ttl: record.ttl ?? 1,
+    };
+    if (record.proxied !== undefined) {
+      apiRecord.proxied = record.proxied;
+    }
+    const updated = await (this.cfAccount as any).apiAccount.dns.records.edit(
+      providerRecordId,
+      apiRecord,
+    );
+    return {
+      providerRecordId: updated.id,
+      name: updated.name,
+      type: updated.type as TDnsRecordType,
+      value: updated.content,
+      ttl: updated.ttl,
+      proxied: updated.proxied,
+    };
+  }
+
+  public async deleteRecord(domain: string, providerRecordId: string): Promise<void> {
+    const zoneId = await this.cfAccount.zoneManager.getZoneId(domain);
+    await (this.cfAccount as any).apiAccount.dns.records.delete(providerRecordId, {
+      zone_id: zoneId,
+    });
+  }
+
+  private isSupportedType(type: string): boolean {
+    return ['A', 'AAAA', 'CNAME', 'MX', 'TXT', 'NS', 'SOA', 'CAA'].includes(type);
+  }
+}

ts/dns/providers/factory.ts

@@ -0,0 +1,31 @@
+import type { IDnsProviderClient } from './interfaces.js';
+import type {
+  TDnsProviderType,
+  TDnsProviderCredentials,
+} from '../../../ts_interfaces/data/dns-provider.js';
+import { CloudflareDnsProvider } from './cloudflare.provider.js';
+
+/**
+ * Instantiate a runtime DNS provider client from a stored DnsProviderDoc.
+ *
+ * @throws if the provider type is not supported.
+ */
+export function createDnsProvider(
+  type: TDnsProviderType,
+  credentials: TDnsProviderCredentials,
+): IDnsProviderClient {
+  switch (type) {
+    case 'cloudflare': {
+      if (credentials.type !== 'cloudflare') {
+        throw new Error(
+          `createDnsProvider: type mismatch — provider type is 'cloudflare' but credentials.type is '${credentials.type}'`,
+        );
+      }
+      return new CloudflareDnsProvider(credentials.apiToken);
+    }
+    default: {
+      const _exhaustive: never = type;
+      throw new Error(`createDnsProvider: unsupported provider type: ${_exhaustive}`);
+    }
+  }
+}

ts/dns/providers/index.ts

@@ -0,0 +1,3 @@
+export * from './interfaces.js';
+export * from './cloudflare.provider.js';
+export * from './factory.js';

ts/dns/providers/interfaces.ts

@@ -0,0 +1,67 @@
+import type { TDnsRecordType } from '../../../ts_interfaces/data/dns-record.js';
+import type { IProviderDomainListing } from '../../../ts_interfaces/data/dns-provider.js';
+
+/**
+ * A DNS record as seen at a provider's API. The `providerRecordId` field
+ * is the provider's internal identifier, used for subsequent updates and
+ * deletes (since providers can have multiple records of the same name+type).
+ */
+export interface IProviderRecord {
+  providerRecordId: string;
+  name: string;
+  type: TDnsRecordType;
+  value: string;
+  ttl: number;
+  proxied?: boolean;
+}
+
+/**
+ * Input shape for creating / updating a DNS record at a provider.
+ */
+export interface IProviderRecordInput {
+  name: string;
+  type: TDnsRecordType;
+  value: string;
+  ttl?: number;
+  proxied?: boolean;
+}
+
+/**
+ * Outcome of a connection test against a provider's API.
+ */
+export interface IConnectionTestResult {
+  ok: boolean;
+  error?: string;
+}
+
+/**
+ * Pluggable DNS provider client interface. One implementation per provider type
+ * (Cloudflare, Route53, …). Implementations live in ts/dns/providers/ and are
+ * instantiated by `createDnsProvider()` in factory.ts.
+ *
+ * NOT a smartdata interface — this is the *runtime* client. The persisted
+ * representation is in `IDnsProvider` (ts_interfaces/data/dns-provider.ts).
+ */
+export interface IDnsProviderClient {
+  /** Lightweight check that credentials are valid and the API is reachable. */
+  testConnection(): Promise<IConnectionTestResult>;
+
+  /** List all DNS zones visible to this provider account. */
+  listDomains(): Promise<IProviderDomainListing[]>;
+
+  /** List all DNS records for a zone (FQDN). */
+  listRecords(domain: string): Promise<IProviderRecord[]>;
+
+  /** Create a new DNS record at the provider; returns the created record (with id). */
+  createRecord(domain: string, record: IProviderRecordInput): Promise<IProviderRecord>;
+
+  /** Update an existing record by provider id; returns the updated record. */
+  updateRecord(
+    domain: string,
+    providerRecordId: string,
+    record: IProviderRecordInput,
+  ): Promise<IProviderRecord>;
+
+  /** Delete a record by provider id. */
+  deleteRecord(domain: string, providerRecordId: string): Promise<void>;
+}