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mock_connect.py
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mock_connect.py
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# Installation:
# virtualenv flask
# source flask/bin/activate
# pip install flask
# To run:
# FLASK_APP=mock_connect.py flask run --host=0.0.0.0
# Use the API key below (0123456789abcdef0123456789abcdef) in rsconnect-jupyter
import io
import tarfile
import uuid
from datetime import datetime
from json import dumps, loads
from functools import wraps
from pprint import pprint
# noinspection PyPackageRequirements
from flask import (
Flask,
Blueprint,
abort,
after_this_request,
g,
request,
url_for,
jsonify,
)
def error(code, reason):
def set_code(response):
response.status_code = code
return response
after_this_request(set_code)
return {"error": reason}
class IdGenerator(object):
def __init__(self):
self._value = 0
def next(self):
self._value = self._value + 1
return self._value
app = Flask(__name__)
apps, app_id_generator = {}, IdGenerator()
bundles, bundle_id_generator = {}, IdGenerator()
tasks, task_id_generator = {}, IdGenerator()
api_keys = {"0123456789abcdef0123456789abcdef": "admin"}
# noinspection SpellCheckingInspection
users = {
"admin": {
"username": "admin",
"active_time": "2018-08-30T23:49:18.421238194Z",
"first_name": "Super",
"last_name": "User",
"locked": False,
"privileges": [
"add_users",
"add_vanities",
"change_app_permissions",
"change_apps",
"change_groups",
"change_usernames",
"change_users",
"change_variant_schedule",
"create_groups",
"edit_run_as",
"edit_runtime",
"lock_users",
"publish_apps",
"remove_apps",
"remove_groups",
"remove_users",
"remove_vanities",
"view_app_settings",
"view_apps",
],
"guid": "29a74070-2c13-4ef9-a898-cfc6bcf0f275",
"user_role": "administrator",
"updated_time": "2018-08-29T19:25:23.68280816Z",
"confirmed": True,
"created_time": "2018-08-29T19:25:23.68280816Z",
"password": "",
"email": "[email protected]",
}
}
def authenticated(f):
@wraps(f)
def wrapper(*args, **kw):
auth = request.headers.get("Authorization")
if auth is None or not auth.startswith("Key "):
abort(401)
key = auth[4:]
if key not in api_keys:
abort(401)
g.user = users[api_keys[key]]
return f(*args, **kw)
return wrapper
def json(f):
@wraps(f)
def wrapper(*args, **kw):
return jsonify(f(*args, **kw))
return wrapper
def item_by_id(d):
def decorator(f):
@wraps(f)
def wrapper(object_id, *args, **kw):
item = d.get(object_id)
if item is None:
return dumps(error(404, "Not found"))
return f(item, *args, **kw)
return wrapper
return decorator
api = Blueprint("api", __name__)
@app.route("/")
def index():
return "<html><body>Welcome to Mock Connect!</body></html>"
@api.route("me")
@authenticated
@json
def me():
return g.user
def timestamp():
return datetime.utcnow().replace(microsecond=0).isoformat() + "Z"
@api.route("applications", methods=["GET", "POST"])
@authenticated
@json
def applications():
if request.method == "POST":
connect_app = request.get_json(force=True)
name = connect_app.get("name")
if name and [existing_app for existing_app in apps.values() if existing_app.get("name") == name]:
return error(409, "An object with that name already exists.")
connect_app["id"] = app_id_generator.next()
connect_app["guid"] = str(uuid.uuid4())
connect_app["url"] = "{0}content/{1}".format(url_for("index", _external=True), connect_app["id"])
connect_app["owner_username"] = g.user.get("username")
connect_app["owner_first_name"] = g.user.get("first_name")
connect_app["owner_last_name"] = g.user.get("last_name")
connect_app["owner_email"] = g.user.get("email")
connect_app["owner_locked"] = g.user.get("locked")
connect_app["bundle_id"] = None
connect_app["needs_config"] = True
connect_app["access_type"] = None
connect_app["description"] = ""
connect_app["app_mode"] = None
connect_app["created_time"] = timestamp()
connect_app.setdefault("title", "")
apps[str(connect_app["id"])] = connect_app
return connect_app
else:
count = int(request.args.get("count", 10000))
search = request.args.get("search")
def match(app_to_match):
return search is None or (app_to_match.get("title") or "").startswith(search)
matches = list(filter(match, apps.values()))[:count]
return {
"count": len(matches),
"total": len(matches),
"applications": matches,
}
# noinspection PyUnresolvedReferences
@api.route("applications/<object_id>", methods=["GET", "POST"])
@authenticated
@json
@item_by_id(apps)
def application(connect_app):
if request.method == "GET":
return connect_app
else:
connect_app.update(request.get_json(force=True))
return connect_app
# noinspection PyUnresolvedReferences
@api.route("applications/<object_id>/config")
@authenticated
@json
@item_by_id(apps)
def config(connect_app):
return {"config_url": "{0}content/apps/{1}".format(url_for("index", _external=True), connect_app["id"])}
# noinspection PyUnresolvedReferences
@api.route("applications/<object_id>/upload", methods=["POST"])
@authenticated
@json
@item_by_id(apps)
def upload(connect_app):
bundle_id = bundle_id_generator.next()
ts = timestamp()
bundle = {
"id": bundle_id,
"app_id": connect_app["id"],
"created_time": ts,
"updated_time": ts,
}
bundles[bundle_id] = (bundle, request.data)
return bundle
def read_bundle_file(tarball, filename):
bio = io.BytesIO(tarball)
with tarfile.open("r:gz", fileobj=bio) as tar:
return tar.extractfile(filename).read()
def read_manifest(tarball):
manifest_data = read_bundle_file(tarball, "manifest.json").decode("utf-8")
return loads(manifest_data)
def read_html(tarball):
manifest = read_manifest(tarball)
meta = manifest["metadata"]
# noinspection SpellCheckingInspection
filename = meta.get("primary_html") or meta.get("entrypoint")
return read_bundle_file(tarball, filename).decode("utf-8")
app_modes = {
"static": 4,
"jupyter-static": 7,
"jupyter-voila": 16,
}
# noinspection PyUnresolvedReferences
@api.route("applications/<object_id>/deploy", methods=["POST"])
@authenticated
@json
@item_by_id(apps)
def deploy(connect_app):
bundle_id = request.get_json(force=True).get("bundle")
if bundle_id is None:
return error(400, "bundle_id is required") # message and status code probably wrong
if bundle_id not in bundles:
return error(404, "bundle %s not found" % bundle_id) # message and status code probably wrong
bundle, tarball = bundles[bundle_id]
manifest = read_manifest(tarball)
pprint(manifest)
old_app_mode = connect_app["app_mode"]
# noinspection SpellCheckingInspection
new_app_mode = app_modes[manifest["metadata"]["appmode"]]
if old_app_mode is not None and old_app_mode != new_app_mode:
return error(400, "Cannot change app mode once deployed") # message and status code probably wrong
connect_app["app_mode"] = new_app_mode
connect_app["bundle_id"] = bundle_id
connect_app["last_deployed_time"] = timestamp()
task_id = task_id_generator.next()
task = {
"id": task_id,
"user_id": 0,
"finished": True,
"code": 0,
"error": "",
"last_status": 0,
"status": ["Building static content", "Deploying static content"],
}
tasks[str(task_id)] = task
return task
# noinspection PyUnresolvedReferences
@api.route("tasks/<object_id>")
@authenticated
@json
@item_by_id(tasks)
def get_task(task):
return task
@api.route("server_settings")
@json
def server_settings():
return {"not_empty": True}
# noinspection PyUnresolvedReferences
@app.route("/content/apps/<object_id>")
@item_by_id(apps)
def content(connect_app):
bundle, tarball = bundles[connect_app["bundle_id"]]
return read_html(tarball)
app.register_blueprint(api, url_prefix="/__api__")