```

feat(api): 新增AI生成内容检测功能

- 添加aigc-detect路由接口，用于检测图像是否为AI生成内容
- 集成阿里云AIGC检测服务，配置相关API参数
- 实现积分扣除机制，每次检测消耗1积分

feat(frontend): 前端集成AI生成检测UI组件

- 添加formatAigcDetectionResult函数用于格式化检测结果显示
- 实现detectAigcImage函数处理检测请求和响应
- 在图片展示区域添加AI生成检测按钮和结果展示框
- 更新图片容器布局，优化下载按钮显示效果

refactor(service): 优化积分管理逻辑

- 新增try_deduct_points函数实现积分预检查和扣除
- 改进错误处理机制，确保数据库事务安全

refactor(history): 过滤AI检测记录

- 在历史记录查询中排除AI生成检测类型的数据
- 使用image_urls字段过滤检测相关的记录
```

blueprints/api.py

@@ -22,6 +22,7 @@ from services.generation_service import (
     validate_video_request,
     start_async_video_task,
 )
+from services.aigc_detector_service import detect_aigc_image
 
 api_bp = Blueprint("api", __name__)
 
@@ -136,6 +137,22 @@ def generate():
         return jsonify({"error": str(e)}), 500
 
 
+@api_bp.route("/api/aigc-detect", methods=["POST"])
+@login_required
+def aigc_detect():
+    try:
+        user_id = session.get("user_id")
+        data = request.json if request.is_json else request.form
+        result, status_code = detect_aigc_image(
+            user_id,
+            (data.get("image_url") or data.get("url") or "").strip(),
+            request.url_root,
+        )
+        return jsonify(result), status_code
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500
+
+
 @api_bp.route("/api/video/generate", methods=["POST"])
 @login_required
 def video_generate():

config.py

@@ -61,6 +61,10 @@ class Config:
     # 阿里云短信配置
     ALIBABA_CLOUD_ACCESS_KEY_ID = "LTAI5tAbHKxmPKVPYsABEdyq"
     ALIBABA_CLOUD_ACCESS_KEY_SECRET = "v6URREddBqvGfwZrWH1DWoxs3w6RxZ"
+    AIGC_DETECTOR_SERVICE = os.getenv("AIGC_DETECTOR_SERVICE", "aigcDetector_ultra")
+    AIGC_DETECTOR_ENDPOINT = os.getenv("AIGC_DETECTOR_ENDPOINT", "green-cip.cn-beijing.aliyuncs.com")
+    AIGC_DETECTOR_REGION_ID = os.getenv("AIGC_DETECTOR_REGION_ID", "cn-beijing")
+    AIGC_DETECTOR_COST = int(os.getenv("AIGC_DETECTOR_COST", "1"))
     SMS_SIGN_NAME = "速通互联验证码"
     SMS_TEMPLATE_CODE = "100001"
     SMS_NEED_PARAM = False  # 该模板需要参数，如使用系统赠送模板请改为 False

services/aigc_detector_service.py

@@ -0,0 +1,228 @@
+import json
+import io
+import uuid
+from urllib.parse import unquote, urljoin, urlparse
+
+import requests
+from alibabacloud_tea_openapi.client import Client as OpenApiClient
+from alibabacloud_tea_openapi import models as open_api_models
+from alibabacloud_tea_openapi import utils_models as open_api_util_models
+from alibabacloud_tea_util import models as util_models
+
+from config import Config
+from extensions import db, s3_client
+from models import GenerationRecord
+from services.generation_service import refund_points, try_deduct_points
+from services.logger import system_logger
+from utils import get_proxied_url
+
+
+def _create_client():
+    config = open_api_models.Config(
+        access_key_id=Config.ALIBABA_CLOUD_ACCESS_KEY_ID,
+        access_key_secret=Config.ALIBABA_CLOUD_ACCESS_KEY_SECRET,
+        region_id=Config.AIGC_DETECTOR_REGION_ID,
+        endpoint=Config.AIGC_DETECTOR_ENDPOINT,
+    )
+    return OpenApiClient(config)
+
+
+def _normalize_image_url(image_url, request_root):
+    if not image_url:
+        return None
+    if image_url.startswith(("http://", "https://")):
+        return image_url
+    return urljoin(request_root, image_url.lstrip("/"))
+
+
+def _is_own_file_url(image_url, request_root):
+    public_path = Config.MINIO["public_url"].rstrip("/") + "/"
+    parsed = urlparse(image_url)
+    if not parsed.scheme:
+        return image_url.startswith(public_path)
+
+    root = urlparse(request_root)
+    return parsed.netloc == root.netloc and parsed.path.startswith(public_path)
+
+
+def _extract_minio_object_key(image_url, request_root):
+    public_path = Config.MINIO["public_url"].rstrip("/") + "/"
+    parsed = urlparse(_normalize_image_url(image_url, request_root))
+    minio_endpoint = urlparse(Config.MINIO["endpoint"])
+    bucket_path = f"/{Config.MINIO['bucket']}/"
+
+    if parsed.netloc == urlparse(request_root).netloc and parsed.path.startswith(public_path):
+        return unquote(parsed.path[len(public_path):])
+
+    if parsed.netloc == minio_endpoint.netloc and parsed.path.startswith(bucket_path):
+        return unquote(parsed.path[len(bucket_path):])
+
+    return None
+
+
+def _get_presigned_minio_url(object_key):
+    return s3_client.generate_presigned_url(
+        "get_object",
+        Params={"Bucket": Config.MINIO["bucket"], "Key": object_key},
+        ExpiresIn=1800,
+    )
+
+
+def _mirror_image_for_detection(image_url, request_root):
+    """把外部临时图转存到 MinIO，并返回给阿里云可直接下载的签名 URL。"""
+    normalized_url = _normalize_image_url(image_url, request_root)
+    object_key = _extract_minio_object_key(normalized_url, request_root)
+    if object_key:
+        return _get_presigned_minio_url(object_key)
+
+    resp = requests.get(get_proxied_url(normalized_url), timeout=Config.PROXY_TIMEOUT_SHORT)
+    resp.raise_for_status()
+
+    content_type = resp.headers.get("Content-Type") or "image/png"
+    ext = ".png"
+    if "jpeg" in content_type or "jpg" in content_type:
+        ext = ".jpg"
+    elif "webp" in content_type:
+        ext = ".webp"
+
+    filename = f"aigc-detect-{uuid.uuid4().hex}{ext}"
+    s3_client.upload_fileobj(
+        io.BytesIO(resp.content),
+        Config.MINIO["bucket"],
+        filename,
+        ExtraArgs={"ContentType": content_type},
+    )
+    return _get_presigned_minio_url(filename)
+
+
+def _extract_result(resp):
+    body = resp.get("body", resp)
+    data = body.get("Data") or body.get("data") or {}
+    if isinstance(data, str):
+        try:
+            data = json.loads(data)
+        except json.JSONDecodeError:
+            data = {"raw": data}
+
+    result = data.get("Result") or data.get("result") or []
+    result_items = result if isinstance(result, list) else []
+    first = result_items[0] if result_items else {}
+    if not isinstance(first, dict):
+        first = {"raw": first}
+
+    label = first.get("Label") or first.get("label") or data.get("Label") or data.get("label")
+    confidence = (
+        first.get("Confidence")
+        or first.get("confidence")
+        or first.get("Rate")
+        or first.get("rate")
+        or data.get("Confidence")
+        or data.get("confidence")
+    )
+    risk_level = (
+        first.get("RiskLevel")
+        or first.get("riskLevel")
+        or data.get("RiskLevel")
+        or data.get("riskLevel")
+    )
+    suggestion = (
+        first.get("Suggestion")
+        or first.get("suggestion")
+        or data.get("Suggestion")
+        or data.get("suggestion")
+    )
+    description = (
+        first.get("Description")
+        or first.get("description")
+        or data.get("Description")
+        or data.get("description")
+    )
+    details = []
+    for item in result_items:
+        if not isinstance(item, dict):
+            continue
+        details.append({
+            "label": item.get("Label") or item.get("label"),
+            "description": item.get("Description") or item.get("description"),
+            "confidence": item.get("Confidence") or item.get("confidence"),
+            "risk_level": item.get("RiskLevel") or item.get("riskLevel") or risk_level,
+        })
+
+    return {
+        "label": label,
+        "description": description,
+        "confidence": confidence,
+        "risk_level": risk_level,
+        "suggestion": suggestion,
+        "details": details,
+        "raw": body,
+    }
+
+
+def _ensure_success(resp):
+    body = resp.get("body", resp)
+    code = body.get("Code") if isinstance(body, dict) else None
+    if code is None and isinstance(body, dict):
+        code = body.get("code")
+    if code is None or str(code) == "200":
+        return
+
+    message = body.get("Msg") or body.get("Message") or body.get("msg") or body.get("message") or "检测接口返回失败"
+    raise RuntimeError(f"{message} (code={code})")
+
+
+def detect_aigc_image(user_id, image_url, request_root):
+    cost = Config.AIGC_DETECTOR_COST
+    if not image_url:
+        return {"error": "缺少图片地址"}, 400
+
+    if not try_deduct_points(user_id, cost):
+        return {"error": f"积分不足，本次 AI 生成检测需要 {cost} 积分"}, 400
+
+    try:
+        normalized_url = _mirror_image_for_detection(image_url, request_root)
+        client = _create_client()
+        params = open_api_util_models.Params(
+            action="ImageModeration",
+            version="2022-03-02",
+            protocol="HTTPS",
+            pathname="/",
+            method="POST",
+            auth_type="AK",
+            body_type="json",
+            req_body_type="json",
+            style="ROA",
+        )
+        request = open_api_util_models.OpenApiRequest(
+            body={
+                "Service": Config.AIGC_DETECTOR_SERVICE,
+                "ServiceParameters": json.dumps(
+                    {"imageUrl": normalized_url},
+                    ensure_ascii=False,
+                ),
+            }
+        )
+        runtime = util_models.RuntimeOptions(
+            read_timeout=Config.PROXY_TIMEOUT_DEFAULT * 1000,
+            connect_timeout=Config.PROXY_TIMEOUT_SHORT * 1000,
+        )
+        resp = client.do_request(params, request, runtime)
+        _ensure_success(resp)
+        result = _extract_result(resp)
+
+        record = GenerationRecord(
+            user_id=user_id,
+            prompt=f"AI生成检测: {normalized_url}",
+            model=Config.AIGC_DETECTOR_SERVICE,
+            cost=cost,
+            image_urls=json.dumps([{"type": "aigc_detection", "url": normalized_url, "result": result}], ensure_ascii=False),
+        )
+        db.session.add(record)
+        db.session.commit()
+
+        return {"message": "检测完成", "cost": cost, "result": result}, 200
+    except Exception as e:
+        db.session.rollback()
+        refund_points(user_id, cost)
+        system_logger.error("AI生成检测失败", user_id=user_id, image_url=image_url, error=str(e))
+        return {"error": f"AI生成检测失败: {str(e)}"}, 500

services/generation_service.py

@@ -112,6 +112,18 @@ def refund_points(user_id, cost):
         db.session.rollback()
 
 
+def try_deduct_points(user_id, cost):
+    """扣减积分，余额不足时返回 False。"""
+    user = db.session.query(User).filter_by(id=user_id).populate_existing().with_for_update().first()
+    if not user or user.points < cost:
+        return False
+
+    user.points -= cost
+    user.has_used_points = True
+    db.session.commit()
+    return True
+
+
 def handle_chat_generation_sync(user_id, api_key, model_value, prompt, use_trial, cost):
     """同步处理聊天类模型。"""
     chat_payload = {

services/history_service.py

@@ -12,7 +12,8 @@ def get_user_history_data(user_id, page=1, per_page=10, filter_type='all'):
     query = GenerationRecord.query.filter(
         GenerationRecord.user_id == user_id,
         GenerationRecord.created_at >= ninety_days_ago,
-        GenerationRecord.prompt != "解读验光单"
+        GenerationRecord.prompt != "解读验光单",
+        ~GenerationRecord.image_urls.like('%"type": "aigc_detection"%')
     )
     
     if filter_type == 'video':

static/js/main.js

@@ -167,6 +167,103 @@ async function downloadImage(url, options = {}) {
     }
 }
 
+function formatAigcDetectionResult(result) {
+    const riskMap = {
+        high: { text: '高风险', badge: 'bg-rose-50 text-rose-600 border-rose-100', bar: 'bg-rose-500' },
+        medium: { text: '中风险', badge: 'bg-amber-50 text-amber-600 border-amber-100', bar: 'bg-amber-500' },
+        low: { text: '低风险', badge: 'bg-emerald-50 text-emerald-600 border-emerald-100', bar: 'bg-emerald-500' },
+        none: { text: '未检出风险', badge: 'bg-emerald-50 text-emerald-600 border-emerald-100', bar: 'bg-emerald-500' }
+    };
+    const riskKey = String(result?.risk_level || '').toLowerCase();
+    const risk = riskMap[riskKey] || { text: result?.risk_level || '未知风险', badge: 'bg-slate-50 text-slate-600 border-slate-100', bar: 'bg-indigo-500' };
+    const confidence = Number(result?.confidence || 0);
+    const confidenceText = Number.isFinite(confidence) && confidence > 0 ? confidence.toFixed(confidence % 1 === 0 ? 0 : 1) : '--';
+    const confidenceWidth = Number.isFinite(confidence) ? Math.max(0, Math.min(100, confidence)) : 0;
+    const label = result?.description || result?.label || 'AI生成检测';
+    const details = Array.isArray(result?.details) ? result.details : [];
+    const detailHtml = details.length ? `
+        <div class="mt-3 space-y-2">
+            ${details.map(item => {
+                const itemConfidence = item.confidence === undefined || item.confidence === null || item.confidence === '' ? '--' : item.confidence;
+                const itemRisk = riskMap[String(item.risk_level || '').toLowerCase()]?.text || item.risk_level || '未知';
+                return `
+                    <div class="flex items-center justify-between gap-3 rounded-xl bg-white px-3 py-2 border border-slate-100">
+                        <div class="min-w-0">
+                            <div class="text-[11px] font-black text-slate-700 truncate">${item.description || item.label || '检测项'}</div>
+                            <div class="text-[9px] font-bold text-slate-400 mt-0.5">${item.label || '--'} · ${itemRisk}</div>
+                        </div>
+                        <div class="text-[11px] font-black text-indigo-600 shrink-0">${itemConfidence}</div>
+                    </div>
+                `;
+            }).join('')}
+        </div>
+    ` : '';
+
+    return `
+        <div class="space-y-3">
+            <div class="flex items-center justify-between gap-3">
+                <div class="min-w-0">
+                    <div class="text-[10px] font-black text-slate-400 uppercase tracking-widest">检测结果</div>
+                    <div class="text-sm font-black text-slate-800 mt-0.5 truncate">${label}</div>
+                </div>
+                <span class="shrink-0 rounded-full border px-3 py-1 text-[10px] font-black ${risk.badge}">${risk.text}</span>
+            </div>
+            <div>
+                <div class="flex items-center justify-between text-[10px] font-black text-slate-400 mb-1.5">
+                    <span>AI生成置信度</span>
+                    <span class="text-indigo-600">${confidenceText}</span>
+                </div>
+                <div class="h-2 rounded-full bg-slate-200 overflow-hidden">
+                    <div class="h-full rounded-full ${risk.bar}" style="width: ${confidenceWidth}%"></div>
+                </div>
+            </div>
+            ${detailHtml}
+            <div class="rounded-xl bg-amber-50 border border-amber-100 px-3 py-2 text-[10px] font-bold leading-relaxed text-amber-700">
+                提示：高风险图片大概率会被主流平台标记为 AI 生成内容。
+            </div>
+        </div>
+    `;
+}
+
+async function detectAigcImage(button) {
+    const imageUrl = decodeURIComponent(button.dataset.url || '');
+    const resultBox = button.closest('.image-frame')?.querySelector('.aigc-detect-result');
+    if (!imageUrl || !resultBox) return;
+
+    button.disabled = true;
+    const originalHtml = button.innerHTML;
+    button.innerHTML = '<i data-lucide="loader-2" class="w-4 h-4 animate-spin"></i><span>检测中</span>';
+    resultBox.classList.remove('hidden', 'text-rose-500');
+    resultBox.classList.add('text-slate-500');
+    resultBox.innerText = '正在调用 AI 生成检测，本次消耗 1 积分...';
+    lucide.createIcons();
+
+    try {
+        const r = await fetch('/api/aigc-detect', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ image_url: imageUrl })
+        });
+        const d = await r.json();
+        if (!r.ok || d.error) throw new Error(d.error || '检测失败');
+
+        resultBox.classList.remove('text-slate-500');
+        resultBox.classList.add('text-indigo-600');
+        resultBox.innerHTML = formatAigcDetectionResult(d.result);
+        showToast('AI 生成检测完成', 'success');
+        checkAuth();
+    } catch (e) {
+        resultBox.classList.remove('text-slate-500', 'text-indigo-600');
+        resultBox.classList.add('text-rose-500');
+        resultBox.innerText = e.message || '检测失败';
+        showToast(resultBox.innerText, 'error');
+    } finally {
+        button.disabled = false;
+        button.innerHTML = originalHtml;
+        lucide.createIcons();
+    }
+}
+
 async function loadHistory(isLoadMore = false) {
     if (isHistoryLoading || (!hasMoreHistory && isLoadMore)) return;
 
@@ -759,15 +856,24 @@ const displayResult = (slot, data) => {
         slot.innerHTML = `<div class="prose prose-slate prose-sm max-w-none text-slate-600 font-medium leading-relaxed">${data.content.replace(/\n/g, '<br>')}</div>`;
     } else {
         const imgUrl = data.url;
+        const encodedImgUrl = encodeURIComponent(imgUrl);
         slot.className = 'image-frame group relative animate-in zoom-in-95 duration-700 flex flex-col items-center justify-center overflow-hidden bg-white shadow-2xl transition-all hover:shadow-indigo-100/50';
         slot.innerHTML = `
-            <div class="w-full h-full flex items-center justify-center bg-slate-50/20 p-2">
+            <div class="relative w-full flex items-center justify-center bg-slate-50/20 p-2">
                 <img src="${imgUrl}" class="max-w-full max-h-[60vh] md:max-h-[70vh] object-contain rounded-2xl shadow-sm transition-transform duration-500 group-hover:scale-[1.01]">
+                <div class="absolute inset-2 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity bg-slate-900/40 backdrop-blur-[2px] rounded-2xl pointer-events-none">
+                    <button onclick="downloadImage('${imgUrl}')" class="bg-white/90 p-4 rounded-full text-indigo-600 shadow-xl hover:scale-110 transition-transform pointer-events-auto" title="下载">
+                        <i data-lucide="download-cloud" class="w-6 h-6"></i>
+                    </button>
+                </div>
             </div>
-            <div class="absolute inset-0 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity bg-slate-900/40 backdrop-blur-[2px] rounded-[2.5rem]">
+            <div class="w-full px-3 pb-3 pt-2 flex flex-col gap-2 bg-white">
-                <button onclick="downloadImage('${imgUrl}')" class="bg-white/90 p-4 rounded-full text-indigo-600 shadow-xl hover:scale-110 transition-transform">
+                <button type="button" data-url="${encodedImgUrl}" onclick="detectAigcImage(this)"
-                    <i data-lucide="download-cloud" class="w-6 h-6"></i>
+                    class="w-full flex items-center justify-center gap-2 rounded-2xl border border-indigo-100 bg-indigo-50 px-4 py-2.5 text-[11px] font-black text-indigo-600 hover:bg-indigo-100 disabled:opacity-60 disabled:cursor-not-allowed transition-colors">
+                    <i data-lucide="scan-search" class="w-4 h-4"></i>
+                    <span>AI生成检测 · 1积分</span>
                 </button>
+                <div class="aigc-detect-result hidden rounded-2xl bg-slate-50 px-4 py-4 text-[11px] font-bold leading-relaxed"></div>
             </div>
         `;
     }