gulag/app/GulagDB.py

251 lines
8.3 KiB
Python

import mysql.connector as mariadb
from Entities import Mailbox,MailboxException,QuarMail,QuarMailException,Attachment,AttachmentException
class GulagDBException(Exception):
message = None
def __init__(self,message):
self.message = str(message)
class GulagDB:
conn = None
uri_prefixes = None
def __init__(self, args, uri_prefixes):
try:
if 'unix_socket' in args:
self.conn = mariadb.connect(
unix_socket=args['unix_socket'],
user=args['user'],
password=args['password'],
database=args['name'],
autocommit=True
)
else:
self.conn = mariadb.connect(
host=args['server'],
user=args['user'],
password=args['password'],
database=args['name'],
autocommit=True
)
self.uri_prefixes = uri_prefixes
except mariadb.Error as e:
raise GulagDBException(e) from e
def close(self):
self.conn.close()
def get_mailboxes(self):
try:
cursor = self.conn.cursor()
cursor.execute("select * from Mailboxes;")
results = []
data = cursor.fetchall()
if not data:
raise GulagDBException("No mailboxes found in DB!")
desc = cursor.description
for tuple in data:
dict = {}
for (name, value) in zip(desc, tuple):
dict[name[0]] = value
dict['href'] = self.uri_prefixes['mailboxes'] + dict['email_address']
try:
results.append(Mailbox(dict).__dict__)
except MailboxException as e:
print("MailboxException: " + e.message)
continue
return results
except mariadb.Error as e:
raise GulagDBException(e) from e
def get_mailbox(self,mailbox_id):
try:
cursor = self.conn.cursor()
cursor.execute(
"select * from Mailboxes where email_address='" + mailbox_id + "' limit 1;"
)
data = cursor.fetchall()
if not data:
raise GulagDBException("Mailbox '" + mailbox_id + "' does not exist!")
desc = cursor.description
tuple = data[0]
dict = {}
for (name, value) in zip(desc, tuple):
dict[name[0]] = value
dict['href'] = self.uri_prefixes['mailboxes'] + dict['email_address']
try:
return Mailbox(dict).__dict__
except MailboxException as e:
raise GulagDBException(e.message) from e
except mariadb.Error as e:
raise GulagDBException(e) from e
def add_quarmail(self, quarmail):
try:
cursor = self.conn.cursor()
cursor.execute("insert into QuarMails " +
"(mx_queue_id,env_from,env_rcpt,"+
"hdr_cf,hdr_from,hdr_subject,"+
"hdr_msgid,hdr_date,cf_meta,"+
"mailbox_id,imap_uid,msg_size) " +
"values (%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)",
(quarmail['mx_queue_id'],quarmail['env_from'],quarmail['env_rcpt'],
quarmail['hdr_cf'],quarmail['hdr_from'],quarmail['hdr_subject'],
quarmail['hdr_msgid'],quarmail['hdr_date'],quarmail['cf_meta'],
quarmail['mailbox_id'],quarmail['imap_uid'],quarmail['msg_size']
)
)
id = cursor.lastrowid
cursor.close()
return id
except mariadb.Error as e:
raise GulagDBException(e) from e
def del_quarmail(self, id):
try:
cursor = self.conn.cursor()
cursor.execute("delete from QuarMails where id=%s;", (id))
cursor.close()
return True
except mariadb.Error as e:
raise GulagDBException(e) from e
def get_quarmails(self):
try:
cursor = self.conn.cursor()
# cursor.execute("select * from QuarMails;")
query = "select *,(select count(*) from QuarMail2Attachment"
query += " where QuarMails.id=QuarMail2Attachment.quarmail_id) as attach_count"
query += " from QuarMails;"
cursor.execute(query)
results = []
data = cursor.fetchall()
if not data:
raise GulagDBException("No Quarmails found in DB!")
desc = cursor.description
cursor.close()
for tuple in data:
dict = {}
for (name, value) in zip(desc, tuple):
if(name[0] == 'ctime'):
dict[name[0]] = value.strftime('%Y-%m-%d %H:%M:%S')
else:
dict[name[0]] = value
dict['href'] = self.uri_prefixes['quarmails'] + str(dict['id'])
results.append(QuarMail(dict).__dict__)
return results
except mariadb.Error as e:
raise GulagDBException(e) from e
def get_quarmail(self,args):
try:
cursor = self.conn.cursor()
# TODO: build SQL query by args
#query = "select * from QuarMails where id='" + args['id'] + "';"
query = "select *,(select count(*) from QuarMail2Attachment"
query += " where QuarMails.id=QuarMail2Attachment.quarmail_id) as attach_count"
query += " from QuarMails where QuarMails.id="+ str(args['id']) +";"
cursor.execute(query)
data = cursor.fetchall()
if not data:
raise GulagDBException("Quarmail with id '"+ args['id'] + "' does not exist!")
desc = cursor.description
cursor.close()
tuple = data[0]
dict = {}
for (name, value) in zip(desc, tuple):
if(name[0] == 'ctime'):
dict[name[0]] = value.strftime('%Y-%m-%d %H:%M:%S')
else:
dict[name[0]] = value
dict['href'] = self.uri_prefixes['quarmails'] + str(dict['id'])
try:
dict['attachments'] = self.get_attachments_by_quarmail(args['id'])
except GulagDBException as e:
pass
return QuarMail(dict).__dict__
except mariadb.Error as e:
raise GulagDBException(e) from e
def get_deprecated_mails(self,retention_period):
try:
cursor = self.conn.cursor()
query = "select ctime,mailbox_id,imap_uid from QuarMails"
query += " where ctime < date_sub(NOW(), INTERVAL "+ str(retention_period) +");"
cursor.execute(query)
results = []
data = cursor.fetchall()
if not data:
return results
desc = cursor.description
for tuple in data:
dict = {}
for (name, value) in zip(desc, tuple):
dict[name[0]] = value
results.append(dict)
return results
except mariadb.Error as e:
raise GulagDBException(e) from e
def add_attachment(self, attach):
try:
cursor = self.conn.cursor()
cursor.execute("insert into Attachments " +
"(filename, content_type) values (%s,%s)",
(attach['filename'], attach['content_type'])
)
return cursor.lastrowid
except mariadb.Error as e:
raise GulagDBException(e) from e
def get_attachment(self, args):
try:
cursor = self.conn.cursor()
cursor.execute("select * from Attachments where id=" + str(args['id']) + ";")
data = cursor.fetchall()
if not data:
raise GulagDBException("Attachment("+ str(args['id']) +") does not exist!")
desc = cursor.description
tuple = data[0]
dict = {}
for (name, value) in zip(desc, tuple):
dict[name[0]] = value
dict['href'] = self.uri_prefixes['attachments'] + str(dict['id'])
return Attachment(dict).__dict__
except mariadb.Error as e:
raise GulagDBException(e) from e
def get_attachments_by_quarmail(self,quarmail_id):
try:
query = "select Attachments.* from QuarMail2Attachment"
query += " left join QuarMails ON QuarMails.id = QuarMail2Attachment.quarmail_id"
query += " left join Attachments ON Attachments.id = QuarMail2Attachment.attachment_id"
query += " where QuarMails.id = " + str(quarmail_id) + ";"
cursor = self.conn.cursor()
cursor.execute(query)
results = []
data = cursor.fetchall()
if not data:
raise GulagDBException("QuarMail("+ str(quarmail_id) +") has no attachments!")
desc = cursor.description
for tuple in data:
dict = {}
for (name, value) in zip(desc, tuple):
dict[name[0]] = value
dict['href'] = self.uri_prefixes['attachments'] + str(dict['id'])
results.append(Attachment(dict).__dict__)
return results
except mariadb.Error as e:
raise GulagDBException(e) from e
def quarmail2attachment(self,quarmail_id,attachment_id):
try:
cursor = self.conn.cursor()
cursor.execute("insert into QuarMail2Attachment " +
"(quarmail_id, attachment_id) values (%s,%s)",
(quarmail_id, attachment_id)
)
except mariadb.Error as e:
raise GulagDBException(e) from e