182 lines
No EOL
7 KiB
Python
182 lines
No EOL
7 KiB
Python
from twisted.protocols import basic
|
|
from twisted.internet import defer
|
|
import logging
|
|
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class ConsoleControl(basic.LineReceiver):
|
|
from os import linesep as delimiter
|
|
|
|
def __init__(self):
|
|
self.connected = False
|
|
self.buffer = []
|
|
self.command_handlers = {}
|
|
self.current_handler = None
|
|
|
|
def start(self, command_handlers):
|
|
self.command_handlers = {h.command: h for h in command_handlers}
|
|
self.current_handler = None
|
|
self.send_initial_prompt()
|
|
return defer.succeed(True)
|
|
|
|
def connectionMade(self):
|
|
self.connected = True
|
|
if self.buffer:
|
|
self.send(self.buffer)
|
|
self.buffer = []
|
|
|
|
def send_initial_prompt(self):
|
|
self.sendLine("")
|
|
self.sendLine("In this early release of LBRY, some functions will not work\n"
|
|
"until you have downloaded a full copy of our blockchain. To\n"
|
|
"check whether you've caught up with the blockchain, use the\n"
|
|
"command 'get-blockchain-status'.\n\n"
|
|
"If, for example, you are unable to download some files or\n"
|
|
"your balance is showing 0 when you know it shouldn't be, it\n"
|
|
"is likely that the culprit is the blockchain.\n\n"
|
|
"You should have received 1000 LBC the first time you ran\n"
|
|
"this program. If you did not, let us know! But first give\n"
|
|
"them a couple of minutes to show up.\n\n"
|
|
"Welcome to lbrynet-console!")
|
|
self.sendLine("")
|
|
self.sendLine("Enter a command. Try 'get wonderfullife' or 'help' to see more options.")
|
|
self.show_prompt()
|
|
|
|
def send(self, s):
|
|
self.transport.write(s)
|
|
|
|
def write(self, s):
|
|
if self.connected is False:
|
|
self.buffer.append(s)
|
|
else:
|
|
self.send(s)
|
|
|
|
def flush(self):
|
|
if self.connected is True and self.buffer:
|
|
self.send(self.buffer)
|
|
self.buffer = []
|
|
|
|
def show_prompt(self):
|
|
self.send("> ")
|
|
|
|
def show_quick_help(self):
|
|
self.sendLine("Available commands:")
|
|
self.sendLine("")
|
|
showed_help_all = False
|
|
sorted_handlers = sorted(self.command_handlers.items(), key=lambda x: x[0])
|
|
sorted_handlers = sorted(sorted_handlers, key=lambda x: x[1].priority, reverse=True)
|
|
for command, handler in sorted_handlers:
|
|
if handler.priority > 0:
|
|
if showed_help_all is False and handler.priority < 10:
|
|
self.sendLine("help-all - Show the full list of available commands")
|
|
showed_help_all = True
|
|
self.sendLine(command + " - " + handler.short_help)
|
|
self.sendLine("")
|
|
self.sendLine("For more information about any command type 'help <command>'")
|
|
|
|
def show_full_help(self):
|
|
self.sendLine("Available commands:")
|
|
self.sendLine("")
|
|
for command, handler in sorted(self.command_handlers.items(), key=lambda x: x[0]):
|
|
self.sendLine(command + " - " + handler.short_help)
|
|
self.sendLine("")
|
|
self.sendLine("For more information about any command type 'help <command>'")
|
|
|
|
def handler_done(self):
|
|
self.current_handler = None
|
|
self.show_prompt()
|
|
|
|
def handler_failed(self, err):
|
|
self.current_handler = None
|
|
self.sendLine("An error occurred:")
|
|
self.sendLine(err.getTraceback())
|
|
self.show_prompt()
|
|
|
|
def lineReceived(self, line):
|
|
if not self.command_handlers:
|
|
return
|
|
if self.current_handler is None:
|
|
words = line.split()
|
|
if len(words) == 0:
|
|
self.show_prompt()
|
|
return
|
|
command, args = words[0], words[1:]
|
|
if command == "help":
|
|
if len(args) == 0:
|
|
self.show_quick_help()
|
|
self.show_prompt()
|
|
return
|
|
if args[0] in self.command_handlers:
|
|
self.sendLine(self.command_handlers[args[0]].full_help)
|
|
self.show_prompt()
|
|
return
|
|
if args[0] == "help-all":
|
|
self.sendLine("Show the full list of available commands!")
|
|
self.show_prompt()
|
|
return
|
|
self.sendLine("Can't help you with '%s'. Sorry!" % args[0])
|
|
self.show_prompt()
|
|
return
|
|
elif command == "help-all":
|
|
self.show_full_help()
|
|
self.show_prompt()
|
|
return
|
|
if command in self.command_handlers:
|
|
command_handler = self.command_handlers[command]
|
|
else:
|
|
candidates = [k for k in self.command_handlers.keys() if k.startswith(command)]
|
|
if len(candidates) == 0:
|
|
self.sendLine("Unknown command. Type 'help' for a list of commands.")
|
|
self.show_prompt()
|
|
return
|
|
if len(candidates) >= 2:
|
|
l = "Ambiguous command. Matches: "
|
|
for candidate in candidates:
|
|
l += candidate
|
|
l += ", "
|
|
l = l[:-2]
|
|
l += l
|
|
self.sendLine(l)
|
|
self.show_prompt()
|
|
return
|
|
else:
|
|
command_handler = self.command_handlers[candidates[0]]
|
|
try:
|
|
self.current_handler = command_handler.get_handler(self)
|
|
except:
|
|
self.current_handler = None
|
|
import traceback
|
|
self.sendLine(traceback.format_exc())
|
|
log.error(traceback.format_exc())
|
|
self.show_prompt()
|
|
return
|
|
try:
|
|
self.current_handler.start(*args)
|
|
except TypeError:
|
|
self.current_handler = None
|
|
self.sendLine("Invalid arguments. Type 'help <command>' for the argument list.")
|
|
import traceback
|
|
log.error(traceback.format_exc())
|
|
self.show_prompt()
|
|
return
|
|
except:
|
|
self.current_handler = None
|
|
import traceback
|
|
self.sendLine(traceback.format_exc())
|
|
log.error(traceback.format_exc())
|
|
self.show_prompt()
|
|
return
|
|
self.current_handler.finished_deferred.addCallbacks(lambda _: self.handler_done(),
|
|
self.handler_failed)
|
|
else:
|
|
try:
|
|
self.current_handler.handle_line(line)
|
|
except Exception as e:
|
|
self.current_handler = None
|
|
import traceback
|
|
self.sendLine(traceback.format_exc())
|
|
log.error(traceback.format_exc())
|
|
self.show_prompt()
|
|
return |