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#!/usr/bin/env python3.6
# Stdlib
from importlib.util import module_from_spec, spec_from_file_location
import mimetypes
import os
# External Libraries
from japronto import Application
app = Application()
def static_file(path: str): # type: (str) -> (req: {Response}) -> Coroutine
async def inner(req): # type: ({Response}) -> Coroutine
with open(path) as file:
return req.Response(
text=file.read(), mime_type=mimetypes.guess_type(path)[0])
return inner
def find_static_files(dir_: str) -> list: # type: (str) -> List[str]
data = []
for path, _, files in os.walk(dir_):
if not files:
continue
for file in files:
if not file.split(".")[-1] not in ("html", "css", "js"):
continue
pathname = f"{path[len(dir_):]}/{file.strip()}"
data.append(pathname.split(".")[0], static_file(pathname))
return data
def find_routes(
dir_: str) -> list: # type: (str) -> List[Tuple[str, str, callable]]
data = []
for path, _, files in os.walk(dir_):
if not files:
continue
for file in files:
if not file.endswith(".py"):
continue
pathname = f"{path}/{file.strip()}"
spec = spec_from_file_location(file[:-3], pathname)
module = module_from_spec(spec)
spec.loader.exec_module(module)
if not hasattr(module, "Index"):
raise Exception("No `Index` class!")
res = module.Index()
del module, spec
route_paths = res.path
for path_ in route_paths:
# TODO: Add all request types here
for method in ("GET", "POST", "DELETE", "PATCH"):
if hasattr(res, method.lower()):
data.append((path_, method, getattr(
res, method.lower())))
return data
def find_errors(dir_: str) -> list: # type: (str) -> List[str]
data = []
for path, _, files in os.walk(dir_):
if not files:
continue
for file in files:
if not file.endswith(".py"):
continue
pathname = f"{path}/{file.strip()}"
spec = spec_from_file_location(file[:-3], pathname)
module = module_from_spec(spec)
spec.loader.exec_module(module)
if not hasattr(module, "Index"):
raise Exception("No `Index` class!")
res = module.Index()
del module, spec
data.append((res.error_code, res.err))
return data
routes = find_routes("routes")
static = find_static_files("static")
errors = find_errors("error_handlers")
for path, method, handle in routes:
app.router.add_route(path, handle, method=method)
for path, handle in static:
app.router.add_route(path, handle, method="GET")
for errcode, handler in errors:
app.add_error_handler(errcode, handler)
app.run(debug=True, port=80)
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