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import os
try: #python3
from urllib.request import urlopen
except: #python2
from urllib2 import urlopen
from flask import Flask, flash, request, redirect, render_template, Response
from werkzeug.utils import secure_filename
import requests
import json
app = Flask(__name__)
app.secret_key = "secret key"
app.config['MAX_CONTENT_LENGTH'] = 16 * 1024 * 1024
ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif', 'py'])
PI_URL = 'http://localhost:8000'
RESULTS_DESTINATION = "Results/results.txt"
def allowed_file(filename):
return '.' in filename and filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
@app.route('/')
def upload_form():
return render_template('upload.html')
@app.route('/upload', methods=['POST'])
def upload_file():
if request.method == 'POST':
# Check if the post request has the file part
if 'file' not in request.files:
flash('No file part')
return redirect(request.url)
# Grab the file
file = request.files['file']
if file.filename == '':
flash('No file selected for uploading')
return redirect(request.url)
# Send the file content as a post to the PI
if file and allowed_file(file.filename):
dictToSend = {'file_content':file.read()}
file.close
print('Running test')
flash('Running test')
response = requests.post(PI_URL + '/tests/endpoint', json=dictToSend)
contents = json.loads(response.text)[u'results_content']
flash('Response from server:' + contents)
results = open(RESULTS_DESTINATION, "w")
results.write(contents)
results.close()
return render_template('upload.html', results = 'True')
else:
flash('Allowed file types are txt, pdf, png, jpg, jpeg, gif')
return redirect(request.url)
@app.route('/results', methods=['GET'])# this is a job for GET, not POST
def download():
print("in downlaods")
with open(RESULTS_DESTINATION, 'r') as results:
results_content = results.read()
results.close()
print("results_content")
return Response(
results_content,
mimetype="text/csv",
headers={"Content-disposition":
"attachment; filename=results.csv"})
if __name__ == "__main__":
app.run(host="localhost", port=5000)
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