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__init__.py
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__init__.py
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#Copyright 2014 Drexel Univeristy
from converter import do_conversion, get_work_dir, clean_work_dir
from scanner import all_target_extensions, conversion_dict
from test import run_tests
from flask import Flask, request, redirect, url_for, stream_with_context, request, Response, send_from_directory, jsonify, g
from os import path, makedirs
import json
from jinja2 import Environment, FileSystemLoader
templatepath = path.join(path.dirname(__file__), 'templates')
env = Environment(loader=FileSystemLoader(templatepath))
app = Flask(__name__)
def after_this_request(func):
if not hasattr(g, 'call_after_request'):
g.call_after_request = []
g.call_after_request.append(func)
return func
@app.after_request
def per_request_callbacks(response):
for func in getattr(g, 'call_after_request', ()):
response = func(response)
return response
@app.route('/', methods=['GET'])
def show_form():
template = env.get_template('main.html')
return template.render(jsonmap=json.dumps(conversion_dict), all_ext = all_target_extensions)
@app.route('/test', methods=['GET'])
def test_results():
return jsonify(run_tests())
@app.route('/', methods=['POST'])
def process_form():
if not 'output_format' in request.form:
return 'no destination format specified', 400
target_format = request.form['output_format']
target_format = target_format.strip()
if not 'file' in request.files:
return 'file not found in POST', 400
file = request.files['file']
file_base_name = path.splitext(file.filename)[0]
source_format = path.splitext(file.filename)[1][1:]
tmp_path = get_work_dir()
@after_this_request
def delete_work_dir(response):
clean_work_dir(tmp_path)
return response
filepath = path.join(tmp_path, 'file.' + source_format)
file.save(filepath)
result = do_conversion(filepath, target_format)
if result <> True:
return result, 500
resp = send_from_directory(tmp_path, 'file.' + target_format)
resp.headers['Content-Disposition'] = 'attachment; filename=' + file_base_name + '.' + target_format
return resp
if __name__ == '__main__':
app.run(threaded = True, host='0.0.0.0', debug=True)