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import json
import re
import vt100
class Handler(object):
def __init__(self, rows, cols):
self.rows = rows
self.cols = cols
self.buf = b''
self.vt = vt100.vt100(rows, cols)
def process(self, data):
self.buf += data
clear = self.buf.rfind(b"\033[2J")
if clear != -1:
self.buf = self.buf[clear + 4:]
self.vt.process(data)
def get_term(self):
term = ''
for i in range(0, self.rows):
for j in range(0, self.cols):
term += self.vt.cell(i, j).contents()
term += "\n"
return term[:-1]
class Connection(object):
def __init__(self, client, connection_id, publisher):
self.client = client
self.connection_id = connection_id
self.publisher = publisher
def run(self):
buf = b''
while len(buf) < 1024 and b"\n" not in buf:
buf += self.client.recv(1024)
pos = buf.find(b"\n")
if pos == -1:
print("no authentication found")
return
auth = buf[:pos]
buf = buf[pos+1:]
auth_re = re.compile(b'^hello ([^ ]+) ([^ ]+)$')
m = auth_re.match(auth)
if m is None:
print("no authentication found (%s)" % auth)
return
print(b"got auth: " + auth)
self.name = m.group(1)
self.client.send(b"hello, " + self.name + b"\n")
extra_data = {}
extra_data_re = re.compile(b'^\033\[H\000([^\377]*)\377\033\[H\033\[2J(.*)$')
m = extra_data_re.match(buf)
if m is not None:
extra_data_json = m.group(1)
extra_data = json.loads(extra_data_json.decode('utf-8'))
buf = m.group(2)
if "geometry" in extra_data:
self.handler = Handler(extra_data["geometry"][1], extra_data["geometry"][0])
else:
self.handler = Handler(24, 80)
self.handler.process(buf)
while True:
buf = self.client.recv(1024)
if len(buf) > 0:
self.publisher.notify("new_data", self.connection_id, self.handler.buf, buf)
self.handler.process(buf)
else:
return
def msg_new_viewer(self, connection_id):
# XXX restore this once we start passing in meaningful connection ids
# if connection_id != self.connection_id:
# return
self.publisher.notify("new_data", self.connection_id, self.handler.buf, b'')
def request_get_streamers(self):
return {
"name": self.name,
"id": self.connection_id,
}
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