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user.py
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user.py
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# These functions handle user authentication, BigQuery initilization for databases,
# Google Drive integration, Google Sheets creation, and sharing files to the Google Suite
# user making the request.
#
# Google Suite users are authenticated with Google Sign-In which then adds 'X-Goog-Authenticated-User'
# headers. This app uses provided user ID to track requests and user email for file sharing/access.
import config
import datetime
import time
from flask import Flask, render_template, request, Response, stream_with_context, jsonify
from googleapiclient.discovery import build
from google.oauth2 import service_account
from google.cloud import datastore
from google.cloud import bigquery
def getUserData():
userID = request.headers.get('X-Goog-Authenticated-User-ID')
user = request.headers.get('X-Goog-Authenticated-User-Email')
if user != None:
user = user.split(':')[1]
else:
userID = -1
user = ''
return [userID,user]
class user:
def __init__(self,fromID = -1):
self.ID = request.headers.get('X-Goog-Authenticated-User-ID')
self.name = request.headers.get('X-Goog-Authenticated-User-Email')
if self.name != None:
self.name = str(self.name.split(':')[1])
self.ID = str(self.ID.split(':')[1])
self.client = bigquery.Client()
else:
if fromID != -1:
self.ID = fromID
else:
self.ID = 'None'
self.name = ''
def setupUserDataset(self):
bq = bigquery.Client()
from google.cloud.exceptions import NotFound
try:
bq.get_dataset(self.ID)
except NotFound:
dataset_ref = bq.dataset(self.ID)
dataset = bigquery.Dataset(dataset_ref)
dataset.location = "US"
dataset = bq.create_dataset(dataset)
access_entries = dataset.access_entries
access_entries.append(bigquery.AccessEnty('READER', 'groupByEmai',self.name))
dataset.access_entries = access_entries
dataset = bq.update_dataset(dataset,['access_entries'])
def addTable(self,table_name):
if self.ID != -1:
self.setupUserDataset()
bq = bigquery.Client()
dataset_ref = bq.dataset(self.ID)
schema = [
bigquery.SchemaField('id', 'STRING', mode = 'REQUIRED'),
bigquery.SchemaField('data', 'STRING', mode = 'REQUIRED')
]
table_ref = dataset_ref.table(table_name)
table = bigquery.Table(table_ref, schema = schema)
table = bq.create_table(table)
table.table_id == table_name
def addData(self,table_id,data):
if self.ID != -1 and data != []:
bq = bigquery.Client()
dataset_ref = bq.dataset(self.ID)
table_ref = dataset_ref.table(table_id)
table = bq.get_table(table_ref)
errors = bq.insert_rows(table,data)
def getData(self,table_id):
bq = bigquery.Client()
dataset_ref = bq.dataset(self.ID)
table_ref = dataset_ref.table(table_id)
table = bq.get_table(table_ref)
sql = "SELECT * FROM `{0}.{1}.{2}`".format(config.apiConfig['tasks']['project-id'],self.ID,table_id)
request = bq.query(sql)
data = request.result()
return data
class gInterface:
def __init__(self):
self.credentials = service_account.Credentials.from_service_account_file('credentials.json')
self.datastore = datastore.Client()
def startDrive(self):
self.drive = build('drive', 'v3', credentials = self.credentials)
self.sheets = build('sheets', 'v4', credentials = self.credentials)
def createSheet(self,name):
spreadsheet = {'properties': {'title': name}}
spreadsheet = self.sheets.spreadsheets().create(body = spreadsheet,fields = 'spreadsheetId').execute()
sheetID = spreadsheet.get('spreadsheetId')
return sheetID
def addDataToSheet(self,sheetID,dataRange,data):
body = {'values':data}
self.sheets.spreadsheets().values().update(spreadsheetId = sheetID,range = dataRange,valueInputOption = "RAW",body = body).execute()
def shareFileWithUser(self,fileID,userEmail,message = ''):
if userEmail != '':
permissions = self.drive.permissions().create(
fileId = fileID,
transferOwnership = False,
sendNotificationEmail = True,
emailMessage = message,
body = {
'type':'user',
'role':'writer',
'emailAddress': userEmail
}
).execute()
self.drive.files().update(fileId = fileID,body = {'permissionIds': [permissions['id']]}).execute()
def transferToUser(self,fileID,userEmail):
if userEmail != '':
permissions = self.drive.permissions().create(
fileId = fileID,
transferOwnership = True,
body = {
'type':'user',
'role':'owner',
'emailAddress': userEmail
}
).execute()
self.drive.files().update(fileId = fileID,body = {'permissionIds': [permissions['id']]}).execute()
def addUserRequest(self,userID,apiName,requests):
sessionRecord = datastore.Entity(key = self.datastore.key(str(userID)))
sessionRecord.update({'timestamp':time.time(),'api':apiName,'requests':requests})
self.datastore.put(sessionRecord)
def checkUserRequests(self,userID,apiName,beginTime = 0, endTime = 2000000000):
userRecord = self.datastore.query(kind = str(userID))
userData = userRecord.fetch()
totalRequests = 0
for thisRow in userData:
if 'api' in thisRow:
if thisRow['api'] == apiName:
if thisRow['timestamp'] > beginTime and thisRow['timestamp'] < endTime:
totalRequests = totalRequests + thisRow['requests']
return totalRequests
def getQuotas(self,userID,apiName):
quotas = {}
now = datetime.datetime.today()
endMonth = now.month
endYear = now.year
if endMonth == 12:
endMonth = 1
endYear = endYear + 1
startTime = datetime.datetime.timestamp(datetime.datetime(year = now.year, month = now.month, day = 1))
endTime = datetime.datetime.timestamp(datetime.datetime(year = endYear, month = endMonth, day = 1))
quotas['userMonth'] = self.checkUserRequests(userID,apiName,startTime,endTime)
quotas['userTotal'] = config.apiConfig[apiName]['user-monthly-limit']
startTime = datetime.datetime.timestamp(datetime.datetime(year = now.year, month = now.month, day = now.day))
endTime = datetime.datetime.timestamp(datetime.datetime(year = now.year, month = now.month, day = now.day + 1))
quotas['apiToday'] = self.checkUserRequests(apiName,apiName,startTime,endTime)
quotas['apiTotal'] = config.apiConfig[apiName]['api-daily-limit']
availableUserRequests = quotas['userTotal'] - quotas['userMonth']
availableAPIRequests = quotas['apiTotal'] - quotas['apiToday']
if availableAPIRequests > 0 and availableUserRequests > 0:
if availableAPIRequests > availableUserRequests:
quotas['maxAvailable'] = availableUserRequests
else:
quotas['maxAvailable'] = availableAPIRequests
else:
quotas['maxAvailable'] = 0
return quotas