[英]How to use os.fork with sqlalchemy core and flask using API?
我已經創建了一個用戶,並希望將電子郵件發送給該用戶的郵件ID,並提供詳細信息:
def send_new_user_mail(new_user_id, plain_passwd):
'''
Send mail to new user added
'''
s1 = select([users]).where(users.c.id == new_user_id)
rs1 = conn.execute(s1).fetchone()
if rs1:
msg = Message("You are registered to use DMS",
sender=app.config['DEFAULT_MAIL_SENDER'],
recipients=[rs1[users.c.email]])
print g.referer, 'g.referer'
user_details = ('username: ' + rs1[users.c.email] + '<br>' +
'password:' + plain_passwd)
# TODO: send change password link
chg_passwd = ('<br><br>You can change password by visiting: ' +
'<a href=url_for("change_password")>' +
url_for("change_my_password", user_id=rs1[users.c.id]) +
'</a>')
chg_passwd = ''
msg.html = ('url: ' + '<a href=' + str(g.referer) + '>' +
g.referer + '</a></br><br>' + user_details +
chg_passwd)
print msg.html, 'msg.html'
try:
with app.app_context():
mail.send(msg)
return True
except Exception, e:
print e
return False
conn1.close()
return
@app.route('/sf/api/v1.0/users', methods=['POST'])
def add_user():
'''
Add a user
'''
if 'id' in session:
data = request.get_json(force=True)
trans = conn.begin()
try:
if 'first_name' in data:
data['first_name'] = data['first_name'].title()
if 'last_name' in data:
data['last_name'] = data['last_name'].title()
ins = users.insert().values(data)
rs = conn.execute(ins)
mnew_user = rs.inserted_primary_key[0]
mfolder = create_ftp_user_source_folder(mnew_user)
trans.commit()
for g in mgroups:
ins2 = users_groups.insert().values(
user=mnew_user,
group=g)
rs2 = conn1.execute(ins2)
except Exception, e:
print e
trans.rollback()
return jsonify({'message': "Invalid / duplicate details"}), 400
# user FTP source folder exists
if mfolder:
# new_child_proc = 0
new_child_proc = os.fork()
print new_child_proc, 'new_child_proc'
if new_child_proc == 0:
x = send_new_user_mail(mnew_user, plain_passwd)
os._exit(0)
else:
print 'child:', new_child_proc
return jsonify({'id': mnew_user}), 201
else:
return jsonify(
{'message': "Cannot create FTP source/already exists"}), 403
return jsonify({'message': "UNAUTHORIZED"}), 401
我嘗試了此代碼,但出現錯誤:還添加了代碼的其他部分。 如果用戶已經屬於一個組,則不會在users_groups中添加它,而是繼續。 添加新用戶后,還會在文件系統中創建一個源文件夾。 正如建議的那樣,我將值存儲在變量中后進行了分叉並嘗試過,但仍然出現相同的錯誤。 有沒有更好的解決方案呢?
(psycopg2.DatabaseError)SSL錯誤:解密失敗或錯誤的記錄mac
連接池出現一些錯誤,我在這里不知道如何使用它。 請指導。 Flask v.0.11,python 2.7,sqlalchemy核心1.0.8
按照@inverio的建議更新我的答案,方法是在fork之后刪除查詢部分:
def send_new_user_mail(memail_id, plain_passwd, mnew_user):
'''
Send mail to new user added to dms with url
'''
msg = Message("You are registered to use DMS",
sender=app.config['DEFAULT_MAIL_SENDER'],
recipients=[memail_id])
user_details = ('username: ' + memail_id + '<br>' +
'password:' + plain_passwd)
chg_passwd = ''
msg.html = ('url: ' + '<a href=' + str(g.referer) + '>' +
g.referer + '</a></br><br>' + user_details +
chg_passwd)
try:
with app.app_context():
mail.send(msg)
return True
except Exception, e:
print e
return False
conn1.close()
return
@app.route('/sf/api/v1.0/users', methods=['POST'])
def add_user():
'''
Add a user and select his group(s)
'''
if 'id' in session:
if session['email'].split("@")[0] == 'ytms.admin' and \
session['flag'] is True:
mgroups = []
mnew_user = None
mfolder = None
memail = None
data = request.get_json(force=True)
if data['password']:
# pass
plain_passwd = data['password']
mypass = pwd_context.encrypt(data['password'])
data['password'] = mypass
if "groups" not in data:
return jsonify({'message': "Cannot add without group(s)"}), 400
for g in data["groups"]:
mgroups.append(g)
del data["groups"]
print data, 'data'
trans = conn.begin()
try:
if 'first_name' in data:
data['first_name'] = data['first_name'].title()
if 'last_name' in data:
data['last_name'] = data['last_name'].title()
ins = users.insert().values(data)
rs = conn.execute(ins)
mnew_user = rs.inserted_primary_key[0]
mfolder = create_ftp_user_source_folder(mnew_user)
memail = data['email']
trans.commit()
for g in mgroups:
ins2 = users_groups.insert().values(
user=mnew_user,
group=g)
rs2 = conn1.execute(ins2)
except Exception, e:
print e
trans.rollback()
return jsonify({'message': "Invalid / duplicate details"}), 400
# user FTP source folder exists
if mfolder:
new_child_proc = os.fork()
if new_child_proc == 0:
x = send_new_user_mail(memail, plain_passwd, mnew_user)
os._exit(0)
else:
print 'child:', new_child_proc
return jsonify({'id': mnew_user}), 201
else:
return jsonify(
{'message': "Cannot create FTP source/already exists"}), 403
return jsonify({'message': "UNAUTHORIZED"}), 401
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