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import requests
import json
import time
import os
def get_access_token(appid: str, secret: str, config) -> str:
"""
获取调用凭证
https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/access-token/auth.getAccessToken.html
args:
apppid: 小程序appid
secret: 小程序appSecret
return: access_token
"""
# 检查本地token
token = config["access_token"]
try:
now = int(time.time())
if None == token or (now - config["create_time"]) > config["expires_in"]:
resp = requests.get(
"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}".format(
appid, secret
)
)
resp = resp.json()
if None == resp["access_token"]:
raise Exception(resp["errmsg"])
# 缓存处理
config["access_token"] = resp["access_token"]
config["create_time"] = int(time.time())
config["expires_in"] = resp["expires_in"]
return config["access_token"]
except Exception as e:
print("获取access token失败")
raise e
def get_upload_file_info(access_token: str, env: str, path: str):
"""
上传文件信息
https://developers.weixin.qq.com/miniprogram/dev/wxcloudrun/src/development/storage/service/upload.html
args:
access_token:
env: 云托管的路径
path: 存放位置
return:
json: {
errcode,
errmsg,
url,
token,
authorization,
file_id,
cos_file_id
}
"""
try:
url = "https://api.weixin.qq.com/tcb/uploadfile?access_token={0}".format(
access_token
)
headers = {"Content-Type": "application/json;charset=UTF-8"}
data = {"env": env, "path": path}
resp = requests.post(url, json=data, headers=headers)
# 转json
resp = resp.json()
if 0 != resp["errcode"]:
print(resp["errmsg"])
print(resp)
raise Exception(resp["errmsg"])
# 返回上传文件信息
return resp
except Exception as e:
print("获取文件上传链接失败")
raise e
def upload_file(url, request_path, authorization, token, file_id, file):
"""
上传文件
https://developers.weixin.qq.com/miniprogram/dev/wxcloudrun/src/development/storage/service/upload.html
args:
url: 上传图片路径 由get_upload获得的url
request_path: 上传路径，和get_upload_file_info内部的一致
authorization: info返回的token
file_id: cos_file_id
file: 文件的二进制数据
return: None
"""
try:
form = {
"key": request_path,
"Signature": authorization,
"x-cos-security-token": token,
"x-cos-meta-fileid": file_id,
"file": file,
}
resp = requests.post(url=url, files=form)
return resp
except Exception as e:
print("上传文件失败")
raise e
def get_download_link(access_token, env, file_id):
"""
获取文件下载链接
https://developers.weixin.qq.com/miniprogram/dev/wxcloudrun/src/development/storage/service/download.html
args:
access_token: 调用token
env: 云环境env
file_id: file_id
return: 文件下载链接
"""
try:
url = "https://api.weixin.qq.com/tcb/batchdownloadfile?access_token={0}".format(
access_token
)
#headers = {"Content-Type": "application/json"}
data = {
"env": env,
"file_list": [
{
"fileid": file_id
# max_age
}
],
}
resp = requests.post(url, json=data)
resp = resp.json()
if 0 != resp["errcode"]:
print(resp["errmsg"])
raise Exception(resp["errmsg"])
return resp["file_list"][0]["download_url"]
except Exception as e:
print("获取下载链接失败")
raise e
def load_config(path="./config.json"):
"""
获取配置，主要是读取缓存的access_token
args: 读取路径
return: config
"""
with open(path, "r") as f:
config = json.load(f)
return config
def save_config(config, path="./config.json"):
"""
保持配置
args: 读取路径
"""
with open(path, "w") as f:
json.dump(config, f, indent=4)
def wx_upload_file(config, filepath, uploadpath):
"""
上传文件
args:
config: 配置
filepath: 文件的路径
uploadpath: 上传的路径，不能以/开头，以/结尾
return: url
"""
realpath = os.path.realpath(filepath)
filename = os.path.basename(realpath)
with open(realpath, "rb") as f:
data = f.read()
# 获取access_token
token = get_access_token(config["appid"], config["secret"], config)
# 获取上传文件链接
info = get_upload_file_info(token, config["env"], uploadpath + filename)
upload_file(
info["url"],
uploadpath + filename,
info["authorization"],
info["token"],
info["cos_file_id"],
data,
)
download_url = get_download_link(token, config["env"], info['file_id'])
return (download_url, info['file_id'])
if __name__ == "__main__":
config = load_config("./config.json")
#print(wx_upload_file(config, "121.jpg", "temp3/"))
# 有url
# print(wx_upload_file(config,'./temp.jpg','temp3/'))
#
# # 无url
path = "./154190339_附件/"
filenames = os.listdir(path)
for filename in filenames:
print(filename)
image = os.path.join(path, filename)
url = wx_upload_file(config, image, "temp3/")
print(url)
save_config(config, "./config.json")
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