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mdTeXer.py.bak
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#!/usr/bin/python3
# TODO: Qt WebChannel checken!
'''
Base file of mdTeXer
This starts a Webserver and a WebSocketServer at the same time on different ports.
'''
import os
from http.server import BaseHTTPRequestHandler, HTTPServer
import asyncio
import websockets
import datetime
import random
from multiprocessing import Process
# convertions to html:
from modules import mdTeX2html
# global settings:
webServerPort = 8081
wsServerPort = 8082
# WebServer stuff:
class testHTTPServer_RequestHandler(BaseHTTPRequestHandler):
''' HTTPRequestHandler class '''
def do_HEAD(s):
s.send_response(200)
s.send_header("Content-type", "text/html")
s.end_headers()
# GET
def do_GET(self):
# Send response status code
self.send_response(200)
# Send headers
self.send_header('Content-type','text/html')
self.end_headers()
# Send message back to client
message = '''
<!doctype html><html>
<head>
<title>mdTeXer</title><meta charset="utf-8" />
</head>
<body style="background-color:#040;">
<h1>mdTeXer</h1>
<div id="notConnected" style="width:100%;background-color:#faa;display:none;">
<p style="text-align:center;">Not connected to WebSocketServer! <!--<button onclick="connect()">Reconnect</button>--></p>
</div>
<textarea id="mdtex" oninput="sendMdTeX()" style="width:49%; height:200px; float:left;">
# Title
TeX-Formula: $\sqrt2=x^2 \Rightarrow x=\sqrt{\sqrt{2}}$
- This
- is
- a List.</textarea>
<div id="htmlOut" style="border:1px solid black; width:49%; float:right; background-color:#fff;"></div>
<script>
var ws = new WebSocket('ws://127.0.0.1:8082/');
function sendMdTeX() {
var mdtex = document.getElementById('mdtex').value;
ws.send(mdtex);
}
function connect() {
ws = new WebSocket('ws://127.0.0.1:8082/');
ws.onopen = function (e) {
document.getElementById('notConnected').style.display='none';
sendMdTeX();
};
ws.onmessage = function (event) {
out = document.getElementById('htmlOut');
out.innerHTML = event.data;
};
ws.onclose = function(e) {
console.log('Socket is closed. Reconnect will be attempted in 3 seconds.', e.reason);
setTimeout(function() {
if (ws.readyState != 1) {
document.getElementById('notConnected').style.display='block';
}
connect();
}, 3000);
}
ws.onerror = function(err) {
console.error('Socket encountered error: ', err.message, 'Closing socket');
ws.close();
};
}
connect();
document.onkeydown = function(e){
if(e.ctrlKey && e.which === 83){ // Check for the Ctrl key being pressed, and if the key = [S] (83)
alert('TODO: speichern');
e.preventDefault();
return false;
}
}
</script>
'''
message += '\n</body>\n</html>'
# Write content as utf-8 data
self.wfile.write(bytes(message, "utf8"))
return
# WebSocketServer-stuff:
CLIENTS = set()
#async def socketMdTeX2html(websocket, path):
# '''Webdocket-Server'''
# while True:
# try:
# mdtex = await websocket.recv()
# html = mdTeX2html.convert(mdtex)
# await websocket.send(html)
# except:
# pass
async def broadcast():
while True:
try:
for ws in CLIENTS:
mdtex = await ws.recv()
html = mdTeX2html.convert(mdtex)
for ws in CLIENTS:
await ws.send(html)
except:
pass
#await asyncio.gather(
# *[ws.send("woof") for ws in CLIENTS],
# return_exceptions=False,
#)
#await asyncio.sleep(2)
asyncio.create_task(broadcast())
async def wsHandler(websocket, path):
CLIENTS.add(websocket)
try:
async for msg in websocket:
pass
except websockets.ConnectionClosedError:
pass
finally:
CLIENTS.remove(websocket)
# get it started:
def runWebServer():
''' start the webserver '''
print('starting webserver')
server_address = ('127.0.0.1', webServerPort)
httpd = HTTPServer(server_address, testHTTPServer_RequestHandler)
print('server is running')
httpd.serve_forever()
def runWsServer():
''' start the websocket-server '''
start_server = websockets.serve(wsHandler, "127.0.0.1", wsServerPort)
ws = asyncio.get_event_loop()
ws.run_until_complete(start_server)
ws.run_forever()
#runServer()
#connection.close()
wsServer = Process(target=runWsServer, args=())
wsServer.start()
webServer = Process(target=runWebServer, args=())
webServer.start()