91 lines
3.2 KiB
Python
91 lines
3.2 KiB
Python
"""迁移码：按目标俱乐部 AppID 生成无限小程序码并上传 COS。"""
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from __future__ import annotations
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import io
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import logging
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import time
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from typing import Optional, Tuple
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import requests
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from django.conf import settings
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from jituan.services.club_migrate import SCENE_PREFIX, scene_for_token
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logger = logging.getLogger(__name__)
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RECEIVE_PAGE = 'pages/migrate/receive'
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def generate_migrate_qrcode(*, to_club_id: str, token: str) -> Tuple[str, str]:
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"""返回 (relative_url, err)。成功时 err 为空。"""
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from utils.weixin_token import get_club_mini_access_token, is_weixin_token_invalid
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club_id = (to_club_id or '').strip()
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if not club_id:
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return '', '缺少目标俱乐部'
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scene = scene_for_token(token)
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if len(scene) > 32:
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return '', 'scene 超长'
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if not scene.startswith(SCENE_PREFIX):
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return '', 'scene 非法'
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access_token = get_club_mini_access_token(club_id)
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if not access_token:
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return '', f'俱乐部 {club_id} 获取微信 token 失败'
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post_data = {
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'scene': scene,
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'page': RECEIVE_PAGE,
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'width': 430,
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'auto_color': False,
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'line_color': {'r': 0, 'g': 0, 'b': 0},
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'check_path': False,
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}
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def _req(tok: str):
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url = f'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token={tok}'
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return requests.post(url, json=post_data, timeout=15)
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wx_resp = _req(access_token)
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if wx_resp.headers.get('content-type', '').startswith('application/json'):
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try:
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err = wx_resp.json()
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if is_weixin_token_invalid(err.get('errcode'), err.get('errmsg', '')):
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access_token = get_club_mini_access_token(club_id, force_refresh=True)
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if access_token:
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wx_resp = _req(access_token)
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except Exception:
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pass
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content_type = wx_resp.headers.get('content-type', '')
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if wx_resp.status_code != 200 or 'image' not in content_type:
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errmsg = '未知错误'
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try:
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error_info = wx_resp.json()
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errmsg = error_info.get('errmsg', errmsg)
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logger.error('migrate qr fail club=%s err=%s', club_id, error_info)
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except Exception:
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logger.error('migrate qr fail club=%s status=%s', club_id, wx_resp.status_code)
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return '', f'生成小程序码失败: {errmsg}'
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from utils.oss_utils import upload_to_oss
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filename = f"migrate_{club_id}_{token}_{int(time.time())}.png"
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oss_path = f"club_migrate/{club_id}/{filename}"
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file_obj = io.BytesIO(wx_resp.content)
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try:
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full_url = upload_to_oss(file_obj, oss_path, content_type='image/png')
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except Exception as e:
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logger.exception('migrate qr upload fail: %s', e)
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return '', f'上传小程序码失败: {e}'
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if not full_url:
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return '', '上传小程序码失败'
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# 前端保存相册必须用 https 完整链；相对路径在 oss 未就绪时会保存失败
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if str(full_url).startswith('http'):
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return str(full_url), ''
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cos_domain = getattr(settings, 'COS_DOMAIN', '').rstrip('/')
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if cos_domain:
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return f'{cos_domain}/{str(full_url).lstrip("/")}', ''
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return str(full_url), ''
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