Files
infiplot-web/app/api/beat-audio/route.ts
T
yuanzonghao 1a6238f8b8 fix(tts): harden StepFun provider integration
- Validate voice.provider against known whitelist (xiaomi|stepfun) in
  beat-audio route to return a clear 400 instead of falling through
- Move single-char pronouns (他/她) to weak-signal fallback in
  detectGender to avoid false positives on compounds like 其他
- Update .env.example with StepFun configuration examples

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-06-09 14:24:27 +08:00

47 lines
1.7 KiB
TypeScript

import { requestBeatAudio } from "@infiplot/engine";
import type { BeatAudioRequest } from "@infiplot/types";
import { NextResponse } from "next/server";
import { loadEngineConfig } from "@/lib/config";
export const runtime = "nodejs";
export async function POST(req: Request) {
let body: BeatAudioRequest;
try {
body = (await req.json()) as BeatAudioRequest;
} catch {
return NextResponse.json({ error: "Invalid JSON" }, { status: 400 });
}
// Accept either provider's voice shape — xiaomi carries referenceAudioBase64,
// stepfun carries voiceId. We only check the discriminator + the line text;
// shape-specific validation lives in each provider's synth function.
const VALID_TTS_PROVIDERS = ["xiaomi", "stepfun"];
if (
!body.beat?.id ||
!body.beat?.line ||
!body.voice?.provider ||
!VALID_TTS_PROVIDERS.includes(body.voice.provider)
) {
return NextResponse.json(
{ error: "beat.id, beat.line and voice.provider (xiaomi|stepfun) are required" },
{ status: 400 },
);
}
try {
const config = loadEngineConfig();
const result = await requestBeatAudio(config, body);
if (!result.audio) return new Response(null, { status: 204 });
const binary = Buffer.from(result.audio.base64, "base64");
return new Response(binary, {
headers: { "Content-Type": result.audio.mime },
});
} catch (err) {
// Engine already swallows synth errors and returns audio:null. Anything
// that reaches here is config-level — surface so the client can log it.
const message = err instanceof Error ? err.message : "Unknown error";
return NextResponse.json({ error: message }, { status: 500 });
}
}