#uPyhttpd, because microWebSrv wasn't small enough.
import socket
_routes={}
_HTTPStatusCodes={
    100: 'Continue',
    101: 'Switching Protocols',
    200: 'OK',
    201: 'Created',
    202: 'Accepted',
    204: 'No Content',
    301: 'Moved Permanently',
    302: 'Found',
    404: 'Not Found',
    500: 'Not Implemented',
}

def __init__(self, bind_ip='0.0.0.0', bind_port=80, verbose=False):
    self.verbose=verbose
    self.bind_ip=bind_ip
    self.bind_port=bind_port
    self.wssock=self.socket.getaddrinfo(bind_ip, bind_port)[0][-1]

def add_route(self, path, handler):
    self._routes.update({b'%s' % path: handler})

def start(self):
    self.wss=self.socket.socket()
    self.wss.bind(self.wssock)
    self.wss.listen(1)
    print("tinyWebServer started on %s:%d" % (self.bind_ip, self.bind_port))
    while True: self.handle_request(*self.wss.accept())

def handle_request(self, reqclient, reqsocket):
    if reqclient == None or reqsocket == None: return
    if self.verbose: print(reqclient)
    reqmethod = None
    reqpath = None
    reqclf = reqclient.makefile('rwb', 0)
    while True:
        reqline = reqclf.readline()
        if not reqline or reqline == b'\r\n': break
        if reqmethod == None or reqpath == None and reqline.find(b' ') >= 0 and len(reqline.split(b' ')) == 3 and reqline.split(b' ')[2].startswith(b'HTTP'):
            reqmethod, reqpath = reqline.split(b' ')[:-1]
    if reqmethod == None or reqpath == None:
        if self.verbose: print("closing attempted keepalive")
        reqclient.close()
        return
    if self.verbose: print("client connected from %s: %s %s" % (reqsocket[0], reqmethod, reqpath))
    reqclient.send(self._routes.get(reqpath, self.no_route)(reqclient))
    reqclient.close()

def respond(self, body='', status=200, ctype="application/json"):
    return "HTTP/1.1 %d %s\r\nContent-Type: %s\r\nConnection: close\r\nServer: tinyWebServer (horny)\r\n\r\n%s" % (
        status, self._HTTPStatusCodes[status], ctype, body)

def no_route(self, request):
    return self.respond(status=404)