Я пытаюсь отправить электронное письмо с вложением (в идеале несколько вложений), размер которого превышает 10 МБ и меньше, чем ограничение в 25 МБ.Причина, по которой я упоминаю 10 МБ, заключается в том, что она, как представляется, является нижней границей, когда обычный способ прикрепления файлов перестает работать, и вы получаете Error 10053
.
Я прочитал в документации, что лучший способсделать это можно было бы с помощью метода resumeble upload , но я не смог заставить его работать и не смог найти хороших примеров в Python.Большинство вопросов SO по этому вопросу просто ссылаются на документацию, в которой нет примера Python, или их код привел к другим ошибкам.
Я ищу объяснение в Python, потому что хочу убедиться, чтоЯ правильно понимаю.
Вопросы, которые я просмотрел:
Код:
import base64
import json
import os
from email import utils, encoders
from email.message import EmailMessage
from email.mime import application, multipart, text, base, image, audio
import mimetypes
from apiclient import errors
from googleapiclient import discovery, http
from google.oauth2 import service_account
def send_email(email_subject, email_body, email_sender='my_service_account@gmail.com', email_to='', email_cc='', email_bcc='', files=None):
# Getting credentials
with open(os.environ.get('SERVICE_KEY_PASSWORD')) as f:
service_account_info = json.loads(f.read())
# Define which scopes we're trying to access
SCOPES = ['https://www.googleapis.com/auth/gmail.send']
# Setting up credentials using the gmail api
credentials = service_account.Credentials.from_service_account_info(service_account_info, scopes=SCOPES)
# This allows us to assign an alias account to the message so that the messages aren't coming from 'ServiceDriod-8328balh blah blah'
delegated_credentials = credentials.with_subject(email_sender)
# 'Building' the service instance using the credentials we've passed
service = discovery.build(serviceName='gmail', version='v1', credentials=delegated_credentials)
# Building out the email
message = multipart.MIMEMultipart()
message['to'] = email_to
message['from'] = email_sender
message['date'] = utils.formatdate(localtime=True)
message['subject'] = email_subject
message['cc'] = email_cc
message['bcc'] = email_bcc
message.attach(text.MIMEText(email_body, 'html'))
for f in files or []:
mimetype, encoding = mimetypes.guess_type(f)
# If the extension is not recognized it will return: (None, None)
# If it's an .mp3, it will return: (audio/mp3, None) (None is for the encoding)
# For an unrecognized extension we set mimetype to 'application/octet-stream' so it won't return None again.
if mimetype is None or encoding is not None:
mimetype = 'application/octet-stream'
main_type, sub_type = mimetype.split('/', 1)
# Creating the attachement:
# This part is used to tell how the file should be read and stored (r, or rb, etc.)
if main_type == 'text':
print('text')
with open(f, 'rb') as outfile:
attachement = text.MIMEText(outfile.read(), _subtype=sub_type)
elif main_type == 'image':
print('image')
with open(f, 'rb') as outfile:
attachement = image.MIMEImage(outfile.read(), _subtype=sub_type)
elif main_type == 'audio':
print('audio')
with open(f, 'rb') as outfile:
attachement = audio.MIMEAudio(outfile.read(), _subtype=sub_type)
elif main_type == 'application' and sub_type == 'pdf':
with open(f, 'rb') as outfile:
attachement = application.MIMEApplication(outfile.read(), _subtype=sub_type)
else:
attachement = base.MIMEBase(main_type, sub_type)
with open(f, 'rb') as outfile:
attachement.set_payload(outfile.read())
encoders.encode_base64(attachement)
attachement.add_header('Content-Disposition', 'attachment', filename=os.path.basename(f))
message.attach(attachement)
media_body = http.MediaFileUpload(files[0], chunksize=500, resumable=True)
print('Uploading large file...')
body = {'raw': base64.urlsafe_b64encode(message.as_bytes()).decode()}
message = (service.users().messages().send(userId='me', body=body, media_body=media_body).execute())
Примечание: Прямо сейчас, в MediaFileUpload я использую files[0]
, потому что я только мыОдин файл для тестирования, и я просто хотел прикрепить один файл, пока он не заработает.
Ошибка:
Exception has occurred: ResumableUploadError
<HttpError 400 "Bad Request">
File "C:\Users\CON01599\AppData\Local\Continuum\anaconda3\Lib\site-packages\googleapiclient\http.py", line 927, in next_chunk
raise ResumableUploadError(resp, content)
File "C:\Users\CON01599\AppData\Local\Continuum\anaconda3\Lib\site-packages\googleapiclient\_helpers.py", line 130, in positional_wrapper
return wrapped(*args, **kwargs)
File "C:\Users\CON01599\AppData\Local\Continuum\anaconda3\Lib\site-packages\googleapiclient\http.py", line 822, in execute
_, body = self.next_chunk(http=http, num_retries=num_retries)
File "C:\Users\CON01599\AppData\Local\Continuum\anaconda3\Lib\site-packages\googleapiclient\_helpers.py", line 130, in positional_wrapper
return wrapped(*args, **kwargs)
File "C:\Users\CON01599\Documents\GitHub\pipelines\components\email\send_email.py", line 105, in send_email
message = (service.users().messages().send(userId='me', body=body, media_body=media_body).execute())
Ответ:
import base64
import io
import json
import os
from email import utils, encoders
from email.message import EmailMessage
from email.mime import application, multipart, text, base, image, audio
import mimetypes
from apiclient import errors
from googleapiclient import discovery, http
from google.oauth2 import service_account
def get_environment_variables():
""" Retrieves the environment variables and returns them in
a dictionary object.
"""
env_var_dict = {
'to': os.environ.get('TO'),
'subject': os.environ.get('SUBJECT'),
'body': os.environ.get('BODY'),
'file': os.environ.get('FILE')
}
return env_var_dict
def send_email(email_subject, email_body, email_sender='my_service_account@gmail.com', email_to='', email_cc='', email_bcc='', files=None):
# Pulling in the string value of the service key from the parameter
with open(os.environ.get('SERVICE_KEY_PASSWORD')) as f:
service_account_info = json.loads(f.read())
# Define which scopes we're trying to access
SCOPES = ['https://www.googleapis.com/auth/gmail.send']
# Setting up credentials using the gmail api
credentials = service_account.Credentials.from_service_account_info(service_account_info, scopes=SCOPES)
# This allows us to assign an alias account to the message so that the messages aren't coming from 'ServiceDriod-8328balh blah blah'
delegated_credentials = credentials.with_subject(email_sender)
# 'Building' the service instance using the credentials we've passed
service = discovery.build(serviceName='gmail', version='v1', credentials=delegated_credentials)
# Building out the email
message = multipart.MIMEMultipart()
message['to'] = email_to
message['from'] = email_sender
message['date'] = utils.formatdate(localtime=True)
message['subject'] = email_subject
message['cc'] = email_cc
message['bcc'] = email_bcc
message.attach(text.MIMEText(email_body, 'html'))
for f in files or []:
f = f.strip(' ')
mimetype, encoding = mimetypes.guess_type(f)
# If the extension is not recognized it will return: (None, None)
# If it's an .mp3, it will return: (audio/mp3, None) (None is for the encoding)
# For an unrecognized extension we set mimetype to 'application/octet-stream' so it won't return None again.
if mimetype is None or encoding is not None:
mimetype = 'application/octet-stream'
main_type, sub_type = mimetype.split('/', 1)
# Creating the attachement:
# This part is used to tell how the file should be read and stored (r, or rb, etc.)
if main_type == 'text':
print('text')
with open(f, 'rb') as outfile:
attachement = text.MIMEText(outfile.read(), _subtype=sub_type)
elif main_type == 'image':
print('image')
with open(f, 'rb') as outfile:
attachement = image.MIMEImage(outfile.read(), _subtype=sub_type)
elif main_type == 'audio':
print('audio')
with open(f, 'rb') as outfile:
attachement = audio.MIMEAudio(outfile.read(), _subtype=sub_type)
elif main_type == 'application' and sub_type == 'pdf':
with open(f, 'rb') as outfile:
attachement = application.MIMEApplication(outfile.read(), _subtype=sub_type)
else:
attachement = base.MIMEBase(main_type, sub_type)
with open(f, 'rb') as outfile:
attachement.set_payload(outfile.read())
encoders.encode_base64(attachement)
attachement.add_header('Content-Disposition', 'attachment', filename=os.path.basename(f))
message.attach(attachement)
media_body = http.MediaIoBaseUpload(io.BytesIO(message.as_bytes()), mimetype='message/rfc822', resumable=True)
body_metadata = {} # no thread, no labels in this example
try:
print('Uploading file...')
response = service.users().messages().send(userId='me', body=body_metadata, media_body=media_body).execute()
print(response)
except errors.HttpError as error:
print('An error occurred when sending the email:\n{}'.format(error))
if __name__ == '__main__':
env_var_dict = get_environment_variables()
print("Sending email...")
send_email(email_subject=env_var_dict['subject'],
email_body=env_var_dict['body'],
email_to=env_var_dict['to'],
files=env_var_dict['file'].split(','))
print("Email sent!")