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etiquette/frontends/etiquette_flask/etiquette_flask/etiquette_flask.py

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import flask
from flask import request
import json
import mimetypes
import os
import random
import traceback
import urllib.parse
import warnings
import zipstream
import etiquette
from . import decorators
from . import jsonify
from . import sessions
from voussoirkit import pathclass
root_dir = pathclass.Path(__file__).parent.parent
TEMPLATE_DIR = root_dir.with_child('templates')
STATIC_DIR = root_dir.with_child('static')
FAVICON_PATH = STATIC_DIR.with_child('favicon.png')
site = flask.Flask(
__name__,
template_folder=TEMPLATE_DIR.absolute_path,
static_folder=STATIC_DIR.absolute_path,
)
site.config.update(
SEND_FILE_MAX_AGE_DEFAULT=180,
TEMPLATES_AUTO_RELOAD=True,
)
site.jinja_env.add_extension('jinja2.ext.do')
site.jinja_env.trim_blocks = True
site.jinja_env.lstrip_blocks = True
site.debug = True
P = etiquette.photodb.PhotoDB()
session_manager = sessions.SessionManager()
####################################################################################################
####################################################################################################
####################################################################################################
####################################################################################################
def back_url():
return request.args.get('goto') or request.referrer or '/'
def create_tag(easybake_string):
notes = P.easybake(easybake_string)
notes = [{'action': action, 'tagname': tagname} for (action, tagname) in notes]
return notes
def delete_tag(tag):
tag = tag.split('.')[-1].split('+')[0]
tag = P.get_tag(tag)
tag.delete()
return {'action': 'delete_tag', 'tagname': tag.name}
def delete_synonym(synonym):
synonym = synonym.split('+')[-1].split('.')[-1]
try:
master_tag = P.get_tag(synonym)
except etiquette.exceptions.NoSuchTag as e:
raise etiquette.exceptions.NoSuchSynonym(*e.given_args, **e.given_kwargs)
else:
master_tag.remove_synonym(synonym)
return {'action':'delete_synonym', 'synonym': synonym}
def P_wrapper(function):
def P_wrapped(thingid, response_type='html'):
try:
return function(thingid)
except etiquette.exceptions.EtiquetteException as e:
if isinstance(e, etiquette.exceptions.NoSuch):
status = 404
else:
status = 400
if response_type == 'html':
flask.abort(status, e.error_message)
else:
response = etiquette.jsonify.exception(e)
response = jsonify.make_json_response(response, status=status)
flask.abort(response)
except Exception as e:
traceback.print_exc()
if response_type == 'html':
flask.abort(500)
else:
flask.abort(etiquette.jsonify.make_json_response({}, status=500))
return P_wrapped
@P_wrapper
def P_album(albumid):
return P.get_album(albumid)
@P_wrapper
def P_photo(photoid):
return P.get_photo(photoid)
@P_wrapper
def P_tag(tagname):
return P.get_tag(tagname)
@P_wrapper
def P_user(username):
return P.get_user(username=username)
@P_wrapper
def P_user_id(userid):
return P.get_user(id=userid)
def send_file(filepath, override_mimetype=None):
'''
Range-enabled file sending.
'''
try:
file_size = os.path.getsize(filepath)
except FileNotFoundError:
flask.abort(404)
outgoing_headers = {}
if override_mimetype is not None:
mimetype = override_mimetype
else:
mimetype = mimetypes.guess_type(filepath)[0]
if mimetype is not None:
if 'text/' in mimetype:
mimetype += '; charset=utf-8'
outgoing_headers['Content-Type'] = mimetype
if 'range' in request.headers:
desired_range = request.headers['range'].lower()
desired_range = desired_range.split('bytes=')[-1]
int_helper = lambda x: int(x) if x.isdigit() else None
if '-' in desired_range:
(desired_min, desired_max) = desired_range.split('-')
range_min = int_helper(desired_min)
range_max = int_helper(desired_max)
else:
range_min = int_helper(desired_range)
if range_min is None:
range_min = 0
if range_max is None:
range_max = file_size
# because ranges are 0-indexed
range_max = min(range_max, file_size - 1)
range_min = max(range_min, 0)
range_header = 'bytes {min}-{max}/{outof}'.format(
min=range_min,
max=range_max,
outof=file_size,
)
outgoing_headers['Content-Range'] = range_header
status = 206
else:
range_max = file_size - 1
range_min = 0
status = 200
outgoing_headers['Accept-Ranges'] = 'bytes'
outgoing_headers['Content-Length'] = (range_max - range_min) + 1
if request.method == 'HEAD':
outgoing_data = bytes()
else:
outgoing_data = etiquette.helpers.read_filebytes(
filepath,
range_min=range_min,
range_max=range_max,
chunk_size=P.config['file_read_chunk'],
)
response = flask.Response(
outgoing_data,
status=status,
headers=outgoing_headers,
)
return response
####################################################################################################
####################################################################################################
####################################################################################################
####################################################################################################
def get_album_core(albumid):
album = P_album(albumid)
return album
def get_albums_core():
albums = list(P.get_root_albums())
albums.sort(key=lambda x: x.display_name.lower())
return albums
def get_search_core():
warning_bag = etiquette.objects.WarningBag()
has_tags = request.args.get('has_tags')
tag_musts = request.args.get('tag_musts')
tag_mays = request.args.get('tag_mays')
tag_forbids = request.args.get('tag_forbids')
tag_expression = request.args.get('tag_expression')
filename_terms = request.args.get('filename')
extension = request.args.get('extension')
extension_not = request.args.get('extension_not')
mimetype = request.args.get('mimetype')
limit = request.args.get('limit')
# This is being pre-processed because the site enforces a maximum value
# which the PhotoDB api does not.
limit = etiquette.searchhelpers.normalize_limit(limit, warning_bag=warning_bag)
if limit is None:
limit = 50
else:
limit = min(limit, 100)
offset = request.args.get('offset')
authors = request.args.get('author')
orderby = request.args.get('orderby')
area = request.args.get('area')
width = request.args.get('width')
height = request.args.get('height')
ratio = request.args.get('ratio')
bytes = request.args.get('bytes')
duration = request.args.get('duration')
created = request.args.get('created')
# These are in a dictionary so I can pass them to the page template.
search_kwargs = {
'area': area,
'width': width,
'height': height,
'ratio': ratio,
'bytes': bytes,
'duration': duration,
'authors': authors,
'created': created,
'extension': extension,
'extension_not': extension_not,
'filename': filename_terms,
'has_tags': has_tags,
'mimetype': mimetype,
'tag_musts': tag_musts,
'tag_mays': tag_mays,
'tag_forbids': tag_forbids,
'tag_expression': tag_expression,
'limit': limit,
'offset': offset,
'orderby': orderby,
'warning_bag': warning_bag,
'give_back_parameters': True
}
#print(search_kwargs)
search_generator = P.search(**search_kwargs)
# Because of the giveback, first element is cleaned up kwargs
search_kwargs = next(search_generator)
# The search has converted many arguments into sets or other types.
# Convert them back into something that will display nicely on the search form.
join_helper = lambda x: ', '.join(x) if x else None
search_kwargs['extension'] = join_helper(search_kwargs['extension'])
search_kwargs['extension_not'] = join_helper(search_kwargs['extension_not'])
search_kwargs['mimetype'] = join_helper(search_kwargs['mimetype'])
tagname_helper = lambda tags: [tag.qualified_name() for tag in tags] if tags else None
search_kwargs['tag_musts'] = tagname_helper(search_kwargs['tag_musts'])
search_kwargs['tag_mays'] = tagname_helper(search_kwargs['tag_mays'])
search_kwargs['tag_forbids'] = tagname_helper(search_kwargs['tag_forbids'])
search_results = list(search_generator)
warnings = set()
photos = []
for item in search_results:
if isinstance(item, etiquette.objects.WarningBag):
warnings.update(item.warnings)
else:
photos.append(item)
# TAGS ON THIS PAGE
total_tags = set()
for photo in photos:
for tag in photo.tags():
total_tags.add(tag)
total_tags = sorted(total_tags, key=lambda t: t.qualified_name())
# PREV-NEXT PAGE URLS
offset = search_kwargs['offset'] or 0
original_params = request.args.to_dict()
original_params['limit'] = limit
if len(photos) == limit:
next_params = original_params.copy()
next_params['offset'] = offset + limit
next_params = etiquette.helpers.dict_to_params(next_params)
next_page_url = '/search' + next_params
else:
next_page_url = None
if offset > 0:
prev_params = original_params.copy()
prev_params['offset'] = max(0, offset - limit)
prev_params = etiquette.helpers.dict_to_params(prev_params)
prev_page_url = '/search' + prev_params
else:
prev_page_url = None
view = request.args.get('view', 'grid')
search_kwargs['view'] = view
final_results = {
'next_page_url': next_page_url,
'prev_page_url': prev_page_url,
'photos': photos,
'total_tags': total_tags,
'warnings': list(warnings),
'search_kwargs': search_kwargs,
}
return final_results
def get_tags_core(specific_tag=None):
if specific_tag is None:
tags = P.get_tags()
else:
tags = specific_tag.walk_children()
tags = list(tags)
tags.sort(key=lambda x: x.qualified_name())
return tags
def post_photo_add_remove_tag_core(photoid, tagname, add_or_remove):
photo = P_photo(photoid, response_type='json')
tag = P_tag(tagname, response_type='json')
try:
if add_or_remove == 'add':
photo.add_tag(tag)
elif add_or_remove == 'remove':
photo.remove_tag(tag)
except etiquette.exceptions.EtiquetteException as e:
response = etiquette.jsonify.exception(e)
response = jsonify.make_json_response(response, status=400)
flask.abort(response)
response = {'tagname': tag.name}
return jsonify.make_json_response(response)
def post_tag_create_delete_core(tagname, function):
try:
response = function(tagname)
status = 200
except etiquette.exceptions.EtiquetteException as e:
response = etiquette.jsonify.exception(e)
status = 400
#print(response)
return jsonify.make_json_response(response, status=status)
####################################################################################################
####################################################################################################
####################################################################################################
####################################################################################################
@site.route('/')
@session_manager.give_token
def root():
motd = random.choice(P.config['motd_strings'])
session = session_manager.get(request)
return flask.render_template('root.html', motd=motd, session=session)
@site.route('/album/<albumid>')
@session_manager.give_token
def get_album_html(albumid):
album = get_album_core(albumid)
session = session_manager.get(request)
response = flask.render_template(
'album.html',
album=album,
session=session,
view=request.args.get('view', 'grid'),
)
return response
@site.route('/album/<albumid>.json')
@session_manager.give_token
def get_album_json(albumid):
album = get_album_core(albumid)
album = etiquette.jsonify.album(album)
album['sub_albums'] = [P_album(x) for x in album['sub_albums']]
album['sub_albums'].sort(key=lambda x: (x.title or x.id).lower())
album['sub_albums'] = [etiquette.jsonify.album(x, minimal=True) for x in album['sub_albums']]
return jsonify.make_json_response(album)
@site.route('/album/<albumid>.zip')
def get_album_zip(albumid):
album = P_album(albumid)
recursive = request.args.get('recursive', True)
recursive = etiquette.helpers.truthystring(recursive)
arcnames = etiquette.helpers.album_zip_filenames(album, recursive=recursive)
streamed_zip = zipstream.ZipFile()
for (real_filepath, arcname) in arcnames.items():
streamed_zip.write(real_filepath, arcname=arcname)
# Add the album metadata as an {id}.txt file within each directory.
directories = etiquette.helpers.album_zip_directories(album, recursive=recursive)
for (inner_album, directory) in directories.items():
text = []
if inner_album.title:
text.append('Title: ' + inner_album.title)
if inner_album.description:
text.append('Description: ' + inner_album.description)
if not text:
continue
text = '\r\n\r\n'.join(text)
streamed_zip.writestr(
arcname=os.path.join(directory, 'album %s.txt' % inner_album.id),
data=text.encode('utf-8'),
)
if album.title:
download_as = 'album %s - %s.zip' % (album.id, album.title)
else:
download_as = 'album %s.zip' % album.id
download_as = etiquette.helpers.normalize_filepath(download_as)
download_as = urllib.parse.quote(download_as)
outgoing_headers = {
'Content-Type': 'application/octet-stream',
'Content-Disposition': 'attachment; filename*=UTF-8\'\'%s' % download_as,
}
return flask.Response(streamed_zip, headers=outgoing_headers)
@site.route('/album/<albumid>/add_tag', methods=['POST'])
@session_manager.give_token
def post_album_add_tag(albumid):
'''
Apply a tag to every photo in the album.
'''
response = {}
album = P_album(albumid)
tag = request.form['tagname'].strip()
try:
tag = P_tag(tag)
except etiquette.exceptions.NoSuchTag as e:
response = etiquette.jsonify.exception(e)
return jsonify.make_json_response(response, status=404)
recursive = request.form.get('recursive', False)
recursive = etiquette.helpers.truthystring(recursive)
album.add_tag_to_all(tag, nested_children=recursive)
response['action'] = 'add_tag'
response['tagname'] = tag.name
return jsonify.make_json_response(response)
@site.route('/album/<albumid>/edit', methods=['POST'])
@session_manager.give_token
def post_album_edit(albumid):
'''
Edit the title / description.
'''
album = P_album(albumid)
title = request.form.get('title', None)
description = request.form.get('description', None)
try:
album.edit(title=title, description=description)
except etiquette.exceptions.EtiquetteException as e:
response = etiquette.jsonify.exception(e)
response = jsonify.make_json_response(response, status=400)
flask.abort(response)
response = etiquette.jsonify.album(album, minimal=True)
return jsonify.make_json_response(response)
@site.route('/albums')
@session_manager.give_token
def get_albums_html():
albums = get_albums_core()
session = session_manager.get(request)
return flask.render_template('albums.html', albums=albums, session=session)
@site.route('/albums.json')
@session_manager.give_token
def get_albums_json():
albums = get_albums_core()
albums = [etiquette.jsonify.album(album, minimal=True) for album in albums]
return jsonify.make_json_response(albums)
@site.route('/albums/create_album', methods=['POST'])
def post_albums_create():
title = request.form.get('title', None)
description = request.form.get('description', None)
parent = request.form.get('parent', None)
if parent is not None:
parent = P_album(parent)
try:
album = P.new_album(title=title, description=description)
except etiquette.exceptions.EtiquetteException as e:
response = etiquette.jsonify.exception(e)
response = jsonify.make_json_response(response, status=400)
flask.abort(response)
if parent is not None:
parent.add(album)
response = etiquette.jsonify.album(album, minimal=False)
return jsonify.make_json_response(response)
@site.route('/bookmarks')
@session_manager.give_token
def get_bookmarks_html():
session = session_manager.get(request)
bookmarks = list(P.get_bookmarks())
return flask.render_template('bookmarks.html', bookmarks=bookmarks, session=session)
@site.route('/bookmarks.json')
@session_manager.give_token
def get_bookmarks_json():
bookmarks = [etiquette.jsonify.bookmark(b) for b in P.get_bookmarks()]
return jsonify.make_json_response(bookmarks)
@site.route('/bookmarks/create_bookmark', methods=['POST'])
@decorators.required_fields(['url'], forbid_whitespace=True)
def post_bookmarks_create():
url = request.form['url']
title = request.form.get('title', None)
try:
bookmark = P.new_bookmark(url=url, title=title)
except etiquette.exceptions.EtiquetteException as e:
response = etiquette.jsonify.exception(e)
response = jsonify.make_json_response(response, status=400)
flask.abort(response)
response = etiquette.jsonify.bookmark(bookmark)
response = jsonify.make_json_response(response)
return response
@site.route('/favicon.ico')
@site.route('/favicon.png')
def favicon():
return flask.send_file(FAVICON_PATH.absolute_path)
@site.route('/file/<photoid>')
def get_file(photoid):
photoid = photoid.split('.')[0]
photo = P.get_photo(photoid)
do_download = request.args.get('download', False)
do_download = etiquette.helpers.truthystring(do_download)
use_original_filename = request.args.get('original_filename', False)
use_original_filename = etiquette.helpers.truthystring(use_original_filename)
if do_download:
if use_original_filename:
download_as = photo.basename
else:
download_as = photo.id + photo.dot_extension
download_as = etiquette.helpers.normalize_filepath(download_as)
download_as = urllib.parse.quote(download_as)
response = flask.make_response(send_file(photo.real_filepath))
response.headers['Content-Disposition'] = 'attachment; filename*=UTF-8\'\'%s' % download_as
return response
else:
return send_file(photo.real_filepath, override_mimetype=photo.mimetype)
@site.route('/login', methods=['GET'])
@session_manager.give_token
def get_login():
session = session_manager.get(request)
return flask.render_template('login.html', session=session)
@site.route('/login', methods=['POST'])
@session_manager.give_token
@decorators.required_fields(['username', 'password'])
def post_login():
if session_manager.get(request):
e = etiquette.exceptions.AlreadySignedIn()
response = etiquette.jsonify.exception(e)
return jsonify.make_json_response(response, status=403)
username = request.form['username']
password = request.form['password']
try:
# Consideration: Should the server hash the password to discourage
# information (user exists) leak via response time?
# Currently I think not, because they can check if the account
# page 404s anyway.
user = P.get_user(username=username)
user = P.login(user.id, password)
except (etiquette.exceptions.NoSuchUser, etiquette.exceptions.WrongLogin):
e = etiquette.exceptions.WrongLogin()
response = etiquette.jsonify.exception(e)
return jsonify.make_json_response(response, status=422)
session = sessions.Session(request, user)
session_manager.add(session)
return jsonify.make_json_response({})
@site.route('/logout', methods=['GET', 'POST'])
@session_manager.give_token
def logout():
session_manager.remove(request)
response = flask.Response('redirect', status=302, headers={'Location': back_url()})
return response
@site.route('/photo/<photoid>', methods=['GET'])
@session_manager.give_token
def get_photo_html(photoid):
photo = P_photo(photoid, response_type='html')
session = session_manager.get(request)
return flask.render_template('photo.html', photo=photo, session=session)
@site.route('/photo/<photoid>.json', methods=['GET'])
@session_manager.give_token
def get_photo_json(photoid):
photo = P_photo(photoid, response_type='json')
photo = etiquette.jsonify.photo(photo)
photo = jsonify.make_json_response(photo)
return photo
@site.route('/photo/<photoid>/add_tag', methods=['POST'])
@decorators.required_fields(['tagname'], forbid_whitespace=True)
def post_photo_add_tag(photoid):
'''
Add a tag to this photo.
'''
return post_photo_add_remove_tag_core(photoid, request.form['tagname'], 'add')
@site.route('/photo/<photoid>/refresh_metadata', methods=['POST'])
def post_photo_refresh_metadata(photoid):
'''
Refresh the file metadata.
'''
P.caches['photo'].remove(photoid)
photo = P_photo(photoid, response_type='json')
try:
photo.reload_metadata()
except etiquette.exceptions.EtiquetteException as e:
response = etiquette.jsonify.exception(e)
response = jsonify.make_json_response(response, status=400)
flask.abort(response)
return jsonify.make_json_response({})
@site.route('/photo/<photoid>/remove_tag', methods=['POST'])
@decorators.required_fields(['tagname'], forbid_whitespace=True)
def post_photo_remove_tag(photoid):
'''
Remove a tag from this photo.
'''
return post_photo_add_remove_tag_core(photoid, request.form['tagname'], 'remove')
@site.route('/register', methods=['GET'])
def get_register():
return flask.redirect('/login')
@site.route('/register', methods=['POST'])
@session_manager.give_token
@decorators.required_fields(['username', 'password_1', 'password_2'])
def post_register():
if session_manager.get(request):
e = etiquette.exceptions.AlreadySignedIn()
response = etiquette.jsonify.exception(e)
return jsonify.make_json_response(response, status=403)
username = request.form['username']
password_1 = request.form['password_1']
password_2 = request.form['password_2']
if password_1 != password_2:
response = {
'error_type': 'PASSWORDS_DONT_MATCH',
'error_message': 'Passwords do not match.',
}
return jsonify.make_json_response(response, status=422)
try:
user = P.register_user(username, password_1)
except etiquette.exceptions.EtiquetteException as e:
response = etiquette.jsonify.exception(e)
return jsonify.make_json_response(response, status=400)
session = sessions.Session(request, user)
session_manager.add(session)
return jsonify.make_json_response({})
@site.route('/search')
@session_manager.give_token
def get_search_html():
search_results = get_search_core()
search_kwargs = search_results['search_kwargs']
qualname_map = etiquette.tag_export.qualified_names(P.get_tags())
session = session_manager.get(request)
response = flask.render_template(
'search.html',
next_page_url=search_results['next_page_url'],
prev_page_url=search_results['prev_page_url'],
photos=search_results['photos'],
qualname_map=json.dumps(qualname_map),
search_kwargs=search_kwargs,
session=session,
total_tags=search_results['total_tags'],
warnings=search_results['warnings'],
)
return response
@site.route('/search.json')
@session_manager.give_token
def get_search_json():
search_results = get_search_core()
search_results['photos'] = [
etiquette.jsonify.photo(photo, include_albums=False) for photo in search_results['photos']
]
return jsonify.make_json_response(search_results)
@site.route('/tag/<specific_tag>')
@site.route('/tags')
@session_manager.give_token
def get_tags_html(specific_tag=None):
if specific_tag is not None:
specific_tag = P_tag(specific_tag, response_type='html')
tags = get_tags_core(specific_tag)
session = session_manager.get(request)
include_synonyms = request.args.get('synonyms')
include_synonyms = include_synonyms is None or etiquette.helpers.truthystring(include_synonyms)
response = flask.render_template(
'tags.html',
include_synonyms=include_synonyms,
session=session,
specific_tag=specific_tag,
tags=tags,
)
return response
@site.route('/tag/<specific_tag>.json')
@site.route('/tags.json')
@session_manager.give_token
def get_tags_json(specific_tag=None):
if specific_tag is not None:
specific_tag = P_tag(specific_tag, response_type='json')
tags = get_tags_core(specific_tag=specific_tag)
include_synonyms = request.args.get('synonyms')
include_synonyms = include_synonyms is None or etiquette.helpers.truthystring(include_synonyms)
tags = [etiquette.jsonify.tag(tag, include_synonyms=include_synonyms) for tag in tags]
return jsonify.make_json_response(tags)
@site.route('/tag/<specific_tag>/edit', methods=['POST'])
def post_tag_edit(specific_tag):
tag = P_tag(specific_tag)
description = request.form.get('description', None)
tag.edit(description=description)
response = etiquette.jsonify.tag(tag)
response = jsonify.make_json_response(response)
return response
@site.route('/tags/<specific_tag>')
@site.route('/tags/<specific_tag>.json')
def get_tags_specific_redirect(specific_tag=None):
return flask.redirect(request.url.replace('/tags/', '/tag/'))
@site.route('/tags/create_tag', methods=['POST'])
@decorators.required_fields(['tagname'], forbid_whitespace=True)
def post_tag_create():
'''
Create a tag.
'''
return post_tag_create_delete_core(request.form['tagname'], create_tag)
@site.route('/tags/delete_synonym', methods=['POST'])
@decorators.required_fields(['tagname'], forbid_whitespace=True)
def post_tag_delete_synonym():
'''
Delete a synonym.
'''
return post_tag_create_delete_core(request.form['tagname'], delete_synonym)
@site.route('/tags/delete_tag', methods=['POST'])
@decorators.required_fields(['tagname'], forbid_whitespace=True)
def post_tag_delete():
'''
Delete a tag.
'''
return post_tag_create_delete_core(request.form['tagname'], delete_tag)
@site.route('/thumbnail/<photoid>')
def get_thumbnail(photoid):
photoid = photoid.split('.')[0]
photo = P_photo(photoid)
if photo.thumbnail:
path = photo.thumbnail
else:
flask.abort(404, 'That file doesnt have a thumbnail')
return send_file(path)
@site.route('/user/<username>', methods=['GET'])
@session_manager.give_token
def get_user_html(username):
user = P_user(username, response_type='html')
session = session_manager.get(request)
return flask.render_template('user.html', user=user, session=session)
@site.route('/user/<username>.json', methods=['GET'])
@session_manager.give_token
def get_user_json(username):
user = P_user(username, response_type='json')
user = etiquette.jsonify.user(user)
return jsonify.make_json_response(user)
@site.route('/userid/<userid>')
@site.route('/userid/<userid>.json')
def get_user_id_redirect(userid):
if request.url.endswith('.json'):
user = P_user_id(userid, response_type='json')
else:
user = P_user_id(userid, response_type='html')
url_from = '/userid/' + userid
url_to = '/user/' + user.username
url = request.url.replace(url_from, url_to)
return flask.redirect(url)
@site.route('/apitest')
@session_manager.give_token
def apitest():
response = flask.Response('testing')
response.set_cookie('etiquette_session', 'don\'t overwrite me')
return response
if __name__ == '__main__':
#site.run(threaded=True)
pass
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