388 lines
13 KiB
Python
388 lines
13 KiB
Python
from flask import Blueprint, request, jsonify, session, current_app
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from urllib.parse import unquote, urljoin, urlparse
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from config import Config
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from extensions import db, redis_client, s3_client
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from models import User, SavedPrompt
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from middlewares.auth import login_required
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from services.logger import system_logger
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import json
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from services.system_service import (
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get_system_config_data,
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get_user_latest_notification,
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mark_notification_as_read,
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)
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from services.history_service import get_user_history_data
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from services.file_service import handle_file_uploads, get_remote_file_stream
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from services.generation_service import (
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validate_generation_request,
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deduct_points,
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handle_chat_generation_sync,
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start_async_image_task,
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validate_video_request,
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start_async_video_task,
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)
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from services.aigc_detector_service import detect_aigc_image
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api_bp = Blueprint("api", __name__)
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@api_bp.route("/api/task_status/<task_id>")
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@login_required
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def get_task_status(task_id):
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try:
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data = redis_client.get(f"task:{task_id}")
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if not data:
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return jsonify({"status": "pending"})
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if isinstance(data, bytes):
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data = data.decode("utf-8")
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return jsonify(json.loads(data))
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except Exception as e:
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system_logger.error(f"查询任务状态异常: {str(e)}")
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return jsonify({"status": "error", "message": "状态查询失败"})
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@api_bp.route("/api/config")
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def get_config():
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try:
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return jsonify(get_system_config_data())
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/upload", methods=["POST"])
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@login_required
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def upload():
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try:
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files = request.files.getlist("images")
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img_urls = handle_file_uploads(files)
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system_logger.info(f"用户上传文件: {len(files)} 张", user_id=session.get("user_id"))
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return jsonify({"urls": img_urls})
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/generate", methods=["POST"])
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@login_required
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def generate():
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try:
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user_id = session.get("user_id")
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user = db.session.get(User, user_id)
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data = request.json if request.is_json else request.form
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image_urls = data.get(
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"image",
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data.get("image_urls", data.get("image_data", [])),
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) or []
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if isinstance(image_urls, str):
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image_urls = [image_urls]
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elif not isinstance(image_urls, (list, tuple)):
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return jsonify({"error": "参考图地址格式无效"}), 400
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normalized_image_urls = []
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for image_url in image_urls:
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if not isinstance(image_url, str) or not image_url.strip():
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return jsonify({"error": "参考图地址无效"}), 400
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image_url = image_url.strip()
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parsed_input = urlparse(image_url)
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if image_url.startswith("/"):
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absolute_url = urljoin(request.url_root, image_url)
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elif parsed_input.scheme in ("http", "https") and parsed_input.netloc:
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absolute_url = image_url
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else:
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return jsonify({"error": "参考图必须使用 HTTP(S) URL，不能使用 Base64"}), 400
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parsed_url = urlparse(absolute_url)
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if parsed_url.scheme not in ("http", "https") or not parsed_url.netloc:
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return jsonify({"error": "参考图必须使用 HTTP(S) URL，不能使用 Base64"}), 400
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normalized_image_urls.append(absolute_url)
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api_key, target_api, cost, use_trial, error = validate_generation_request(user, data)
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if error:
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return jsonify({"error": error}), 400
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if use_trial:
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deduct_points(user_id, cost)
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model_value = data.get("model")
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prompt = (data.get("prompt") or "").strip()
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if not prompt:
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return jsonify({"error": "提示词不能为空"}), 400
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model_lower = model_value.lower()
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is_chat_model = ("gemini" in model_lower or "gpt" in model_lower) and "image" not in model_lower
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if is_chat_model:
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result, status_code = handle_chat_generation_sync(
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user_id, api_key, model_value, prompt, use_trial, cost
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)
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return jsonify(result), status_code
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if model_value == "gpt-image-2":
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payload = {
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"prompt": prompt,
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"model": model_value,
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"response_format": "url",
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"size": data.get("size") or "2048x2048",
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"quality": "high",
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}
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if normalized_image_urls:
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payload["image"] = normalized_image_urls
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else:
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payload = {
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"prompt": prompt,
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"model": model_value,
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"response_format": "url",
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"aspect_ratio": data.get("ratio"),
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}
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if normalized_image_urls:
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payload["image"] = normalized_image_urls
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if model_value in ("nano-banana-2", "gemini-3.1-flash-image-preview") and data.get("size"):
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payload["image_size"] = data.get("size")
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app = current_app._get_current_object()
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task_id = start_async_image_task(
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app,
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user_id,
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payload,
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api_key,
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target_api,
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cost,
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data.get("mode"),
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model_value,
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use_trial,
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)
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return jsonify({
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"task_id": task_id,
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"message": "已开启异步生成任务",
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})
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/aigc-detect", methods=["POST"])
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@login_required
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def aigc_detect():
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try:
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user_id = session.get("user_id")
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data = request.json if request.is_json else request.form
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result, status_code = detect_aigc_image(
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user_id,
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(data.get("image_url") or data.get("url") or "").strip(),
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request.url_root,
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)
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return jsonify(result), status_code
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/video/generate", methods=["POST"])
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@login_required
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def video_generate():
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try:
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user_id = session.get("user_id")
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user = db.session.get(User, user_id)
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data = request.json
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model_value, cost, error = validate_video_request(user, data)
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if error:
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return jsonify({"error": error}), 400
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deduct_points(user_id, cost)
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payload = {
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"model": model_value,
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"prompt": data.get("prompt"),
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"enhance_prompt": data.get("enhance_prompt", False),
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"images": data.get("images", []),
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"aspect_ratio": data.get("aspect_ratio", "9:16"),
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}
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if payload.get("images"):
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payload["images"] = [img.split(",", 1)[1] if "," in img else img for img in payload["images"]]
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app = current_app._get_current_object()
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task_id = start_async_video_task(app, user_id, payload, cost, model_value)
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return jsonify({
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"task_id": task_id,
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"message": "视频生成任务已提交，系统正在处理中",
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})
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/notifications/latest", methods=["GET"])
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@login_required
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def get_latest_notification():
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try:
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user_id = session.get("user_id")
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data = get_user_latest_notification(user_id)
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return jsonify(data)
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/notifications/read", methods=["POST"])
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@login_required
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def mark_notif_read():
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try:
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user_id = session.get("user_id")
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data = request.json
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notif_id = data.get("id")
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if not notif_id:
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return jsonify({"error": "缺少通知 ID"}), 400
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mark_notification_as_read(user_id, notif_id)
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return jsonify({"status": "ok"})
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/history", methods=["GET"])
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@login_required
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def get_history():
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try:
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user_id = session.get("user_id")
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page = request.args.get("page", 1, type=int)
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per_page = request.args.get("per_page", 10, type=int)
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filter_type = request.args.get("filter_type", "all")
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data = get_user_history_data(user_id, page, per_page, filter_type)
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return jsonify(data)
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/stats/points", methods=["GET"])
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@login_required
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def get_user_point_stats():
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from services.stats_service import get_point_stats
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user_id = session.get("user_id")
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days = request.args.get("days", 7, type=int)
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return jsonify(get_point_stats(user_id, days))
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@api_bp.route("/api/stats/details", methods=["GET"])
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@login_required
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def get_user_point_details():
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from services.stats_service import get_point_details
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user_id = session.get("user_id")
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page = request.args.get("page", 1, type=int)
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return jsonify(get_point_details(user_id, page))
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@api_bp.route("/api/download_proxy", methods=["GET"])
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@login_required
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def download_proxy():
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import time
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url = request.args.get("url")
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default_name = f"video-{int(time.time())}.mp4"
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filename = request.args.get("filename") or default_name
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if not url:
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return jsonify({"error": "缺少 URL 参数"}), 400
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try:
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parsed_url = urlparse(url)
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public_prefix = Config.MINIO["public_url"].rstrip("/") + "/"
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is_same_origin_file = (
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parsed_url.path.startswith(public_prefix)
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and (not parsed_url.scheme or parsed_url.netloc == request.host)
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)
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if is_same_origin_file:
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object_key = unquote(parsed_url.path[len(public_prefix):])
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file_obj = s3_client.get_object(Bucket=Config.MINIO["bucket"], Key=object_key)
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headers = {
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"Content-Type": file_obj.get("ContentType") or "application/octet-stream",
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"Content-Disposition": f'attachment; filename="{filename}"',
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"Cache-Control": "private, max-age=0",
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}
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def generate_minio_stream():
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try:
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for chunk in file_obj["Body"].iter_chunks(chunk_size=4096):
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yield chunk
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finally:
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file_obj["Body"].close()
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return current_app.response_class(generate_minio_stream(), headers=headers)
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req, headers = get_remote_file_stream(url)
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headers["Content-Disposition"] = f'attachment; filename="{filename}"'
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def generate_stream():
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try:
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for chunk in req.iter_content(chunk_size=4096):
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yield chunk
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finally:
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req.close()
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return current_app.response_class(generate_stream(), headers=headers)
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except Exception as e:
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system_logger.error(f"代理下载失败: {str(e)}")
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return jsonify({"error": "下载失败"}), 500
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@api_bp.route("/api/prompts", methods=["GET"])
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@login_required
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def list_prompts():
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try:
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user_id = session.get("user_id")
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prompts = SavedPrompt.query.filter_by(user_id=user_id).order_by(SavedPrompt.created_at.desc()).all()
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return jsonify([
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{
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"id": p.id,
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"label": p.title,
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"value": p.prompt,
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}
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for p in prompts
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])
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/prompts", methods=["POST"])
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@login_required
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def save_prompt():
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try:
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user_id = session.get("user_id")
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data = request.json
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title = data.get("title")
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prompt_text = data.get("prompt")
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if not title or not prompt_text:
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return jsonify({"error": "标题和内容不能为空"}), 400
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count = SavedPrompt.query.filter_by(user_id=user_id).count()
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if count >= 50:
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return jsonify({"error": "收藏数量已达上限 (50)"}), 400
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prompt = SavedPrompt(user_id=user_id, title=title, prompt=prompt_text)
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db.session.add(prompt)
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db.session.commit()
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return jsonify({"message": "保存成功", "id": prompt.id})
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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@api_bp.route("/api/prompts/<int:id>", methods=["DELETE"])
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@login_required
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def delete_prompt(id):
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try:
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user_id = session.get("user_id")
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prompt = SavedPrompt.query.filter_by(id=id, user_id=user_id).first()
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if prompt:
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db.session.delete(prompt)
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db.session.commit()
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return jsonify({"message": "删除成功"})
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except Exception as e:
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return jsonify({"error": str(e)}), 500
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