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Add version negotiation

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*Actually* closes #12.
This commit is contained in:
Samuel Sloniker 2021-07-05 11:39:56 -07:00
parent a5bae2c0e2
commit 87008043db
2 changed files with 14 additions and 7 deletions
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6
client/js/main.js
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@ -24,7 +24,9 @@ function setup() {
window.m = e
let type, pos, x, y, data, img, code, msg
type = e.data.split('%')[0]
if ( type == 'pic' ) {
if (type == 'ver') {
ws.send('pass ' + localStorage.getItem('password'))
} else if ( type == 'pic' ) {
pos = e.data.split('%')[1]
x = Number(pos.split('x')[0])
y = Number(pos.split('x')[1])
@ -63,7 +65,7 @@ function setup() {
canvas.style.display = 'none'
}
ws.onopen = function(e) {
ws.send('pass ' + localStorage.getItem('password'))
ws.send('maxver 1')
}
setInterval(function(){ws.send('ack')}, 3000)
}

15
server/wss.py
View File

@ -75,6 +75,7 @@ class Client:
class HCRAServer(tornado.websocket.WebSocketHandler):
def open(self):
self.has_auth = False
self.version = None
def on_close(self):
global client
@ -85,10 +86,15 @@ class HCRAServer(tornado.websocket.WebSocketHandler):
def on_message(self, message):
action = message.split(' ', 1)[0]
if not self.has_auth:
print(message)
print(action)
print(action != 'pass')
if self.version is None:
if action == 'maxver':
self.version = min(int(message.split(' ', 1)[1]), 1)
self.write_message(f'ver%{self.version}')
else:
self.write_message('err%*mustmaxver%Client must send version')
self.close()
return
elif not self.has_auth:
if action != 'pass':
self.write_message('err%*mustauth%Authentication required')
self.close()
@ -125,7 +131,6 @@ class HCRAServer(tornado.websocket.WebSocketHandler):
if action == 'ack':
self.client.good = True
else:
print(message)
_, x, y, w, is_long = message.split(' ')
x, y, w, is_long = int(x), int(y), int(w), is_long == 'true'
imgproc.touch(x, y, w, is_long)