def response_file(data, filename):
"""
:param data: response data
:param filename:
:return: return a file to client
"""
from flask import Response
from ctypes import create_string_buffer
import mimetypes, struct
from werkzeug.datastructures import Headers
# buf = create_string_buffer(len(data))
# struct.pack_into(str(len(data))+"s", buf, 0, data)
response = Response()
response.data = data
response.status_code = 200
mimetype_tuple = mimetypes.guess_type(filename)
response.default_mimetype=mimetype_tuple[0]
response_headers = Headers({
'Pragma': "no-cache",
'Expires': '0',
'Cache-Control': 'must-revalidate, post-check=0, pre-check=0',
'Content-Type': mimetype_tuple[0],
'Content-Disposition': 'attachment; filename=\"%s\";' % filename,
'Content-Transfer-Encoding': 'binary',
'Content-Length': len(response.data)
})
if not mimetype_tuple[1] is None:
response.headers.update({
'Content-Encoding': mimetype_tuple[1]
})
response.headers = response_headers
return response
def static_data_br_states_view():
"""
:return:
"""
path_states_json = os.path.join(
os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'data',
'br-states.json')
with open(path_states_json) as f:
resp = Response(f.read())
resp.default_mimetype = 'plain/json'
return resp
def static_data_br_states_view():
"""
:return:
"""
path_states_json = os.path.join(
os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
'data', 'br-states.json'
)
with open(path_states_json) as f:
resp = Response(f.read())
resp.default_mimetype = 'plain/json'
return resp
