This is a Tornado websocket backend for the Xterm.js Javascript terminal emulator library.
It evolved out of pyxterm, which was part of GraphTerm (as lineterm.py), v0.57.0 (2014-07-18), and ultimately derived from the public-domain Ajaxterm code, v0.11 (2008-11-13) (also on Github as part of QWeb).
Modules:
terminado.management: controls launching virtual terminals, connecting them to Tornado's event loop, and closing them down.terminado.websocket: Provides a websocket handler for communicating with a terminal.terminado.uimodule: Provides a Terminal Tornado UI Module.JS:
terminado/_static/terminado.js: A lightweight wrapper to set up a term.js terminal with a websocket.Local Installation:
$ pip install -e .[test]
Usage example:
import os.path
import tornado.web
import tornado.ioloop
# This demo requires tornado_xstatic and XStatic-term.js
import tornado_xstatic
import terminado
STATIC_DIR = os.path.join(os.path.dirname(terminado.__file__), "_static")
class TerminalPageHandler(tornado.web.RequestHandler):
def get(self):
return self.render(
"termpage.html",
static=self.static_url,
xstatic=self.application.settings["xstatic_url"],
ws_url_path="/websocket",
)
if __name__ == "__main__":
term_manager = terminado.SingleTermManager(shell_command=["bash"])
handlers = [
(r"/websocket", terminado.TermSocket, {"term_manager": term_manager}),
(r"/", TerminalPageHandler),
(
r"/xstatic/(.*)",
tornado_xstatic.XStaticFileHandler,
{"allowed_modules": ["termjs"]},
),
]
app = tornado.web.Application(
handlers,
static_path=STATIC_DIR,
xstatic_url=tornado_xstatic.url_maker("/xstatic/"),
)
# Serve at http://localhost:8765/ N.B. Leaving out 'localhost' here will
# work, but it will listen on the public network interface as well.
# Given what terminado does, that would be rather a security hole.
app.listen(8765, "localhost")
try:
tornado.ioloop.IOLoop.instance().start()
finally:
term_manager.shutdown()
See the demos directory for more examples. This is a simplified version of the single.py demo.
Run the unit tests with:
$ pytest
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