edms.py
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import os
import requests
from zeep import Client, xsd
from settings import conf
from apps.doc import consts
from common.redis_cache import redis_handler as rh
class EDMS:
def __init__(self):
self.sm_client = Client(wsdl=conf.SM_WSDL)
self.dm_client = Client(wsdl=conf.DM_WSDL)
self.df_client = Client(wsdl=conf.DF_WSDL)
self.rc_client = Client(wsdl=conf.RC_WSDL)
self.download_url = conf.EDMS_DOWNLOAD_URL
self.upload_url = conf.EDMS_UPLOAD_URL
self.dealer_code = conf.DEALER_CODE
self.user_name = conf.EDMS_USER
self.pwd = conf.EDMS_PWD
self.session_id = None
def set_session_id(self):
self.session_id = self.sm_client.service.StartSession(login=self.user_name,
password=self.pwd,
clientType=consts.CUSTOM_CLIENT)
rh.set_session_id(self.session_id)
return self.session_id
def get_session_id(self):
if self.session_id is None:
# redis获取session_id
self.session_id = rh.get_session_id()
if self.session_id is None:
return self.set_session_id()
# 验证session_id
is_session_valid = self.sm_client.service.IsSessionValid(sessionId=self.session_id, keepAlive=False)
if is_session_valid is True:
return self.session_id
return self.set_session_id()
def get_headers(self):
session_id = self.get_session_id()
headers = {'Cookie': '{0}={1}'.format(consts.SESSION_PREFIX, session_id)}
return headers
def get_download_token(self, headers, metadata_version_id):
with self.dm_client.settings(extra_http_headers=headers):
res = self.dm_client.service.PrepareSingleDocumentToDownload(metadataVersionId=metadata_version_id,
token=consts.FIXED_TOKEN,
fileSize=consts.FIXED_FILE_SIZE,
actionType=consts.DOWNLOAD_ACTION_TYPE)
return res.token
def download_handler(self, params, headers, save_path):
r = requests.get(self.download_url, params=params, headers=headers, stream=True)
with open(save_path, "wb") as f:
# chunk是指定每次写入的大小，每次只写了512byte
for chunk in r.iter_content(chunk_size=1024):
if chunk:
f.write(chunk)
f.flush()
def download(self, save_path, metadata_version_id):
headers = self.get_headers()
token = self.get_download_token(headers, metadata_version_id)
params = {'token': token}
self.download_handler(params, headers, save_path)
def create_upload_token(self, headers):
with self.rc_client.settings(extra_http_headers=headers):
token = self.rc_client.service.CreateUploadToken(fileSize=consts.FIXED_FILE_SIZE)
return token
def upload_handler(self, file_path, params, headers):
with open(file_path, 'rb') as f:
data = f.read()
for retry in range(4):
res = requests.post(self.upload_url, params=params, headers=headers, data=data)
if res.status_code == requests.codes.ok:
break
else:
raise Exception
@staticmethod
def get_doc_file_name(doc_name):
if doc_name.endswith('pdf'):
name, _ = os.path.splitext(doc_name)
return name
return doc_name
def get_doc_info(self, token, doc, business_type, file_path):
business_type = consts.BUSINESS_TYPE_DICT.get(business_type)
doc_schema_id, auto_filing = consts.DOC_SCHEMA_ID_FILL.get(doc.document_scheme)
application_id = doc.application_id
doc_file_name = self.get_doc_file_name(doc.document_name)
origin_file_name = os.path.basename(file_path)
fields_with_value = [
{'FieldId': consts.APPLICATION_ID_META_FIELD_id,
'FieldValue': xsd.AnyObject(xsd.String(), application_id)},
{'FieldId': consts.DEALER_CODE_META_FIELD_id,
'FieldValue': xsd.AnyObject(xsd.String(), self.dealer_code)},
{'FieldId': consts.BUSINESS_TYPE_META_FIELD_id,
'FieldValue': xsd.AnyObject(xsd.String(), business_type)},
]
fields_with_values = {'FieldWithValue': fields_with_value}
info = {
'DocumentSchemaId': doc_schema_id,
'DocumentName': doc_file_name,
'FieldsWithValues': fields_with_values,
'UploadToken': token,
'OriginalFileName': origin_file_name,
'SendEmailToMembers': False,
'AutoFilingScriptToUse': auto_filing,
'DocumentSchemaType': consts.DOC_SCHEMA_TYPE,
}
return info
def add_doc_info(self, headers, token, doc, business_type, file_path):
info = self.get_doc_info(token, doc, business_type, file_path)
with self.dm_client.settings(extra_http_headers=headers):
metadata_version_id = self.dm_client.service.AddDocumentInfo(info=info)
return metadata_version_id
def upload(self, file_path, doc, business_type):
# file_path = '/Users/clay/Postman/files/OCRuploadTest4.txt'
# file_size = 16
# doc_info = {
# 'document_scheme': 'Acceptance',
# 'application_id': 'CH-B100014248',
# 'doc_file_name': 'OCRuploadTest4.txt',
# 'business_type': 'CO00001',
# }
headers = self.get_headers()
token = self.create_upload_token(headers)
headers.update({'Content-Type': 'application/octet-stream'})
params = {'token': token}
self.upload_handler(file_path, params, headers)
headers.pop('Content-Type')
metadata_version_id = self.add_doc_info(headers, token, doc, business_type, file_path)
return metadata_version_id