在apache和mod_wsgi上的python flask中创建文件时出现权限被拒绝错误 [英] permission denied error while creating a file in python flask on apache and mod_wsgi
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问题描述
我正在尝试通过python flask.创建一个CSV文件。该代码在本地主机中运行良好,但在AWS EC2实例上部署在apache+mod_wsgi上时会出现权限被拒绝错误。
@app.route('/downloadChats/<db_token>/<requestrange>/', methods = ['GET'])
def downloadChats(db_token, requestrange):
<fetch data from table>
try:
filename = str(time.time()).strip().split('.')[0] + '.csv'
df = pd.DataFrame(columns = ['sessionid', 'city', 'ipAddress', 'startTime', 'timestamp', 'name', 'mob_no'])
for sessid in sessionids:
df = df.append({'sessionid' : disp_json[sessid]['sessionid'], 'city' : disp_json[sessid]['city'], 'ipAddress' : disp_j$
df.to_csv(filename, index = False)
except Exception as msg:
print("Exception while writing csv file in downloadChats : " + str(msg))
return "<h1> THis service is unavailable currently, Please try later. </h1> "
return send_from_directory('/var/www/FlaskApps/chatbotApp/', filename, as_attachment=True)
APP配置文件为:
<VirtualHost *:80>
ServerName example1.example.com
ServerAdmin admin@mywebsite.com
WSGIScriptAlias / /var/www/FlaskApps/FlaskApps.wsgi
WSGIPassAuthorization On
<Directory /var/www/FlaskApps/chatbotApp/>
Order allow,deny
Allow from all
</Directory>
<Directory /var/www/FlaskApps/chatbotApp/static/>
Order allow,deny
Allow from all
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
RewriteEngine on
RewriteCond %{SERVER_NAME} = example1.example.com
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI}
[END,NE,R=permanent]
</VirtualHost>
WSGI配置文件为:
导入系统
导入日志记录
logging.basicConfig(stream=sys.stderr)
sys.path.insert(0,"/var/www/FlaskApps/chatbotApp/")
# home points to the home.py file
from home import app as application
application.secret_key = "somesecretsessionkey"
错误:
[Errno 13] Permission denied: '1518497209.csv'
推荐答案
您不能使用相对路径名,因为进程的工作目录将不在您的代码所在的位置。Mod_wsgi文档中对此以及您需要执行的操作进行了说明:
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