Chrys
parent
8ea6e37537
commit
9e48fb1cf6
@ -1,215 +1,216 @@
|
|||||||
#!/bin/python
|
#!/bin/python
|
||||||
# -*- coding: utf-8 -*-
|
# -*- coding: utf-8 -*-
|
||||||
|
|
||||||
# Fenrir TTY screen reader
|
# Fenrir TTY screen reader
|
||||||
# By Chrys, Storm Dragon, and contributers.
|
# By Chrys, Storm Dragon, and contributers.
|
||||||
|
|
||||||
import os, struct, sys, pty, tty, termios, shlex, signal, select, pyte, time, fcntl ,getpass
|
import os, struct, sys, pty, tty, termios, shlex, signal, select, pyte, time, fcntl ,getpass
|
||||||
from fenrirscreenreader.core import debug
|
from fenrirscreenreader.core import debug
|
||||||
from fenrirscreenreader.core.eventData import fenrirEventType
|
from fenrirscreenreader.core.eventData import fenrirEventType
|
||||||
from fenrirscreenreader.core.screenDriver import screenDriver
|
from fenrirscreenreader.core.screenDriver import screenDriver
|
||||||
from fenrirscreenreader.utils import screen_utils
|
from fenrirscreenreader.utils import screen_utils
|
||||||
|
|
||||||
|
|
||||||
class fenrirScreen(pyte.HistoryScreen):
|
class fenrirScreen(pyte.HistoryScreen):
|
||||||
def set_margins(self, *args, **kwargs):
|
def set_margins(self, *args, **kwargs):
|
||||||
kwargs.pop("private", None)
|
kwargs.pop("private", None)
|
||||||
return super(fenrirScreen, self).set_margins(*args, **kwargs)
|
return super(fenrirScreen, self).set_margins(*args, **kwargs)
|
||||||
|
|
||||||
class Terminal:
|
class Terminal:
|
||||||
def __init__(self, columns, lines, p_in):
|
def __init__(self, columns, lines, p_in):
|
||||||
self.text = ''
|
self.text = ''
|
||||||
self.attributes = None
|
self.attributes = None
|
||||||
self.screen = fenrirScreen(columns, lines)
|
self.screen = fenrirScreen(columns, lines)
|
||||||
self.screen.set_mode(pyte.modes.LNM)
|
self.screen.set_mode(pyte.modes.LNM)
|
||||||
self.screen.write_process_input = \
|
self.screen.write_process_input = \
|
||||||
lambda data: p_in.write(data.encode())
|
lambda data: p_in.write(data.encode())
|
||||||
self.stream = pyte.ByteStream()
|
self.stream = pyte.ByteStream()
|
||||||
self.stream.attach(self.screen)
|
self.stream.attach(self.screen)
|
||||||
def feed(self, data):
|
def feed(self, data):
|
||||||
self.stream.feed(data)
|
self.stream.feed(data)
|
||||||
|
|
||||||
def updateAttributes(self, initialize = False):
|
def updateAttributes(self, initialize = False):
|
||||||
buffer = self.screen.buffer
|
buffer = self.screen.buffer
|
||||||
lines = None
|
lines = None
|
||||||
if not initialize:
|
if not initialize:
|
||||||
lines = self.screen.dirty
|
lines = self.screen.dirty
|
||||||
else:
|
else:
|
||||||
lines = range(self.screen.lines)
|
lines = range(self.screen.lines)
|
||||||
self.attributes = [[list(attribute[1:]) + [False, 'default', 'default'] for attribute in line.values()] for line in buffer.values()]
|
self.attributes = [[list(attribute[1:]) + [False, 'default', 'default'] for attribute in line.values()] for line in buffer.values()]
|
||||||
|
|
||||||
for y in lines:
|
for y in lines:
|
||||||
try:
|
try:
|
||||||
t = self.attributes[y]
|
t = self.attributes[y]
|
||||||
except:
|
except:
|
||||||
self.attributes.append([])
|
self.attributes.append([])
|
||||||
|
|
||||||
self.attributes[y] = [list(attribute[1:]) + [False, 'default', 'default'] for attribute in (buffer[y].values())]
|
self.attributes[y] = [list(attribute[1:]) + [False, 'default', 'default'] for attribute in (buffer[y].values())]
|
||||||
if len(self.attributes[y]) < self.screen.columns:
|
if len(self.attributes[y]) < self.screen.columns:
|
||||||
diff = self.screen.columns - len(self.attributes[y])
|
diff = self.screen.columns - len(self.attributes[y])
|
||||||
self.attributes[y] += [['default', 'default', False, False, False, False, False, False, 'default', 'default']] * diff
|
self.attributes[y] += [['default', 'default', False, False, False, False, False, False, 'default', 'default']] * diff
|
||||||
|
|
||||||
def resize(self, lines, columns):
|
def resize(self, lines, columns):
|
||||||
self.screen.resize(lines, columns)
|
self.screen.resize(lines, columns)
|
||||||
self.setCursor()
|
self.setCursor()
|
||||||
self.updateAttributes(True)
|
self.updateAttributes(True)
|
||||||
def setCursor(self, x = -1, y = -1):
|
def setCursor(self, x = -1, y = -1):
|
||||||
xPos = x
|
xPos = x
|
||||||
yPos = y
|
yPos = y
|
||||||
if xPos == -1:
|
if xPos == -1:
|
||||||
xPos = self.screen.cursor.x
|
xPos = self.screen.cursor.x
|
||||||
if yPos == -1:
|
if yPos == -1:
|
||||||
yPos = self.screen.cursor.y
|
yPos = self.screen.cursor.y
|
||||||
self.screen.cursor.x = min(self.screen.cursor.x, self.screen.columns - 1)
|
self.screen.cursor.x = min(self.screen.cursor.x, self.screen.columns - 1)
|
||||||
self.screen.cursor.y = min(self.screen.cursor.y, self.screen.lines - 1)
|
self.screen.cursor.y = min(self.screen.cursor.y, self.screen.lines - 1)
|
||||||
def GetScreenContent(self):
|
def GetScreenContent(self):
|
||||||
cursor = self.screen.cursor
|
cursor = self.screen.cursor
|
||||||
self.text = '\n'.join(self.screen.display)
|
self.text = '\n'.join(self.screen.display)
|
||||||
self.updateAttributes(self.attributes == None)
|
self.updateAttributes(self.attributes == None)
|
||||||
self.screen.dirty.clear()
|
self.screen.dirty.clear()
|
||||||
return {"cursor": (cursor.x, cursor.y),
|
return {"cursor": (cursor.x, cursor.y),
|
||||||
'lines': self.screen.lines,
|
'lines': self.screen.lines,
|
||||||
'columns': self.screen.columns,
|
'columns': self.screen.columns,
|
||||||
"text": self.text,
|
"text": self.text,
|
||||||
'attributes': self.attributes.copy(),
|
'attributes': self.attributes.copy(),
|
||||||
'screen': 'pty',
|
'screen': 'pty',
|
||||||
'screenUpdateTime': time.time(),
|
'screenUpdateTime': time.time(),
|
||||||
}.copy()
|
}.copy()
|
||||||
|
|
||||||
class driver(screenDriver):
|
class driver(screenDriver):
|
||||||
def __init__(self):
|
def __init__(self):
|
||||||
screenDriver.__init__(self)
|
screenDriver.__init__(self)
|
||||||
self.signalPipe = os.pipe()
|
self.signalPipe = os.pipe()
|
||||||
self.p_out = None
|
self.p_out = None
|
||||||
signal.signal(signal.SIGWINCH, self.handleSigwinch)
|
signal.signal(signal.SIGWINCH, self.handleSigwinch)
|
||||||
def initialize(self, environment):
|
def initialize(self, environment):
|
||||||
self.env = environment
|
self.env = environment
|
||||||
self.command = self.env['runtime']['settingsManager'].getSetting('general','shell')
|
self.command = self.env['runtime']['settingsManager'].getSetting('general','shell')
|
||||||
self.shortcutType = self.env['runtime']['inputManager'].getShortcutType()
|
self.shortcutType = self.env['runtime']['inputManager'].getShortcutType()
|
||||||
self.env['runtime']['processManager'].addCustomEventThread(self.terminalEmulation)
|
self.env['runtime']['processManager'].addCustomEventThread(self.terminalEmulation)
|
||||||
def getCurrScreen(self):
|
def getCurrScreen(self):
|
||||||
self.env['screen']['oldTTY'] = 'pty'
|
self.env['screen']['oldTTY'] = 'pty'
|
||||||
self.env['screen']['newTTY'] = 'pty'
|
self.env['screen']['newTTY'] = 'pty'
|
||||||
|
|
||||||
def injectTextToScreen(self, msgBytes, screen = None):
|
def injectTextToScreen(self, msgBytes, screen = None):
|
||||||
if not screen:
|
if not screen:
|
||||||
screen = self.p_out.fileno()
|
screen = self.p_out.fileno()
|
||||||
if isinstance(msgBytes, str):
|
if isinstance(msgBytes, str):
|
||||||
msgBytes = bytes(msgBytes, 'UTF-8')
|
msgBytes = bytes(msgBytes, 'UTF-8')
|
||||||
os.write(screen, msgBytes)
|
os.write(screen, msgBytes)
|
||||||
|
|
||||||
def getSessionInformation(self):
|
def getSessionInformation(self):
|
||||||
self.env['screen']['autoIgnoreScreens'] = []
|
self.env['screen']['autoIgnoreScreens'] = []
|
||||||
self.env['general']['prevUser'] = getpass.getuser()
|
self.env['general']['prevUser'] = getpass.getuser()
|
||||||
self.env['general']['currUser'] = getpass.getuser()
|
self.env['general']['currUser'] = getpass.getuser()
|
||||||
def readAll(self, fd, timeout = 9999999, interruptFd = None, len = 2048):
|
def readAll(self, fd, timeout = 9999999, interruptFd = None, len = 2048):
|
||||||
bytes = b''
|
bytes = b''
|
||||||
fdList = []
|
fdList = []
|
||||||
fdList += [fd]
|
fdList += [fd]
|
||||||
if interruptFd:
|
if interruptFd:
|
||||||
fdList += [interruptFd]
|
fdList += [interruptFd]
|
||||||
starttime = time.time()
|
starttime = time.time()
|
||||||
while True:
|
while True:
|
||||||
# respect timeout but wait a little bit of time to see if something more is here
|
# respect timeout but wait a little bit of time to see if something more is here
|
||||||
if (time.time() - starttime) >= timeout:
|
if (time.time() - starttime) >= timeout:
|
||||||
break
|
break
|
||||||
r = screen_utils.hasMoreWhat(fdList,0)
|
r = screen_utils.hasMoreWhat(fdList,0)
|
||||||
hasmore = fd in r
|
hasmore = fd in r
|
||||||
if not hasmore:
|
if not hasmore:
|
||||||
break
|
break
|
||||||
# exit on interrupt available
|
# exit on interrupt available
|
||||||
if interruptFd in r:
|
if interruptFd in r:
|
||||||
break
|
break
|
||||||
data = os.read(fd, len)
|
data = os.read(fd, len)
|
||||||
if data == b'':
|
if data == b'':
|
||||||
raise EOFError
|
raise EOFError
|
||||||
bytes += data
|
bytes += data
|
||||||
return bytes
|
return bytes
|
||||||
def openTerminal(self, columns, lines, command):
|
def openTerminal(self, columns, lines, command):
|
||||||
p_pid, master_fd = pty.fork()
|
p_pid, master_fd = pty.fork()
|
||||||
if p_pid == 0: # Child.
|
if p_pid == 0: # Child.
|
||||||
argv = shlex.split(command)
|
argv = shlex.split(command)
|
||||||
env = os.environ.copy()
|
env = os.environ.copy()
|
||||||
#values are VT100,xterm-256color,linux
|
#values are VT100,xterm-256color,linux
|
||||||
try:
|
try:
|
||||||
if env["TERM"] == '':
|
eterm = env["TERM"]
|
||||||
env["TERM"] = 'linux'
|
if eterm == '':
|
||||||
except:
|
env["TERM"] = 'linux'
|
||||||
env["TERM"] = 'linux'
|
except:
|
||||||
os.execvpe(argv[0], argv, env)
|
env["TERM"] = 'linux'
|
||||||
# File-like object for I/O with the child process aka command.
|
os.execvpe(argv[0], argv, env)
|
||||||
p_out = os.fdopen(master_fd, "w+b", 0)
|
# File-like object for I/O with the child process aka command.
|
||||||
return Terminal(columns, lines, p_out), p_pid, p_out
|
p_out = os.fdopen(master_fd, "w+b", 0)
|
||||||
def resizeTerminal(self,fd):
|
return Terminal(columns, lines, p_out), p_pid, p_out
|
||||||
s = struct.pack('HHHH', 0, 0, 0, 0)
|
def resizeTerminal(self,fd):
|
||||||
s = fcntl.ioctl(0, termios.TIOCGWINSZ, s)
|
s = struct.pack('HHHH', 0, 0, 0, 0)
|
||||||
fcntl.ioctl(fd, termios.TIOCSWINSZ, s)
|
s = fcntl.ioctl(0, termios.TIOCGWINSZ, s)
|
||||||
lines, columns, _, _ = struct.unpack('hhhh', s)
|
fcntl.ioctl(fd, termios.TIOCSWINSZ, s)
|
||||||
return lines, columns
|
lines, columns, _, _ = struct.unpack('hhhh', s)
|
||||||
def getTerminalSize(self, fd):
|
return lines, columns
|
||||||
s = struct.pack('HHHH', 0, 0, 0, 0)
|
def getTerminalSize(self, fd):
|
||||||
lines, columns, _, _ = struct.unpack('HHHH', fcntl.ioctl(fd, termios.TIOCGWINSZ, s))
|
s = struct.pack('HHHH', 0, 0, 0, 0)
|
||||||
return lines, columns
|
lines, columns, _, _ = struct.unpack('HHHH', fcntl.ioctl(fd, termios.TIOCGWINSZ, s))
|
||||||
def handleSigwinch(self, *args):
|
return lines, columns
|
||||||
os.write(self.signalPipe[1], b'w')
|
def handleSigwinch(self, *args):
|
||||||
def terminalEmulation(self,active , eventQueue):
|
os.write(self.signalPipe[1], b'w')
|
||||||
try:
|
def terminalEmulation(self,active , eventQueue):
|
||||||
old_attr = termios.tcgetattr(sys.stdin)
|
try:
|
||||||
tty.setraw(0)
|
old_attr = termios.tcgetattr(sys.stdin)
|
||||||
lines, columns = self.getTerminalSize(0)
|
tty.setraw(0)
|
||||||
if self.command == '':
|
lines, columns = self.getTerminalSize(0)
|
||||||
self.command = screen_utils.getShell()
|
if self.command == '':
|
||||||
terminal, p_pid, self.p_out = self.openTerminal(columns, lines, self.command)
|
self.command = screen_utils.getShell()
|
||||||
lines, columns = self.resizeTerminal(self.p_out)
|
terminal, p_pid, self.p_out = self.openTerminal(columns, lines, self.command)
|
||||||
terminal.resize(lines, columns)
|
lines, columns = self.resizeTerminal(self.p_out)
|
||||||
fdList = [sys.stdin, self.p_out, self.signalPipe[0]]
|
terminal.resize(lines, columns)
|
||||||
while active.value:
|
fdList = [sys.stdin, self.p_out, self.signalPipe[0]]
|
||||||
r, _, _ = select.select(fdList, [], [], 1)
|
while active.value:
|
||||||
# none
|
r, _, _ = select.select(fdList, [], [], 1)
|
||||||
if r == []:
|
# none
|
||||||
continue
|
if r == []:
|
||||||
# signals
|
continue
|
||||||
if self.signalPipe[0] in r:
|
# signals
|
||||||
os.read(self.signalPipe[0], 1)
|
if self.signalPipe[0] in r:
|
||||||
lines, columns = self.resizeTerminal(self.p_out)
|
os.read(self.signalPipe[0], 1)
|
||||||
terminal.resize(lines, columns)
|
lines, columns = self.resizeTerminal(self.p_out)
|
||||||
# input
|
terminal.resize(lines, columns)
|
||||||
if sys.stdin in r:
|
# input
|
||||||
try:
|
if sys.stdin in r:
|
||||||
msgBytes = self.readAll(sys.stdin.fileno())
|
try:
|
||||||
except (EOFError, OSError):
|
msgBytes = self.readAll(sys.stdin.fileno())
|
||||||
active.value = False
|
except (EOFError, OSError):
|
||||||
break
|
active.value = False
|
||||||
if self.shortcutType == 'KEY':
|
break
|
||||||
try:
|
if self.shortcutType == 'KEY':
|
||||||
self.injectTextToScreen(msgBytes)
|
try:
|
||||||
except:
|
self.injectTextToScreen(msgBytes)
|
||||||
active.value = False
|
except:
|
||||||
break
|
active.value = False
|
||||||
else:
|
break
|
||||||
eventQueue.put({"Type":fenrirEventType.ByteInput,
|
else:
|
||||||
"Data":msgBytes })
|
eventQueue.put({"Type":fenrirEventType.ByteInput,
|
||||||
# output
|
"Data":msgBytes })
|
||||||
if self.p_out in r:
|
# output
|
||||||
try:
|
if self.p_out in r:
|
||||||
msgBytes = self.readAll(self.p_out.fileno(), timeout=0.001, interruptFd=sys.stdin)
|
try:
|
||||||
except (EOFError, OSError):
|
msgBytes = self.readAll(self.p_out.fileno(), timeout=0.001, interruptFd=sys.stdin)
|
||||||
active.value = False
|
except (EOFError, OSError):
|
||||||
break
|
active.value = False
|
||||||
terminal.feed(msgBytes)
|
break
|
||||||
os.write(sys.stdout.fileno(), msgBytes)
|
terminal.feed(msgBytes)
|
||||||
eventQueue.put({"Type":fenrirEventType.ScreenUpdate,
|
os.write(sys.stdout.fileno(), msgBytes)
|
||||||
"Data":screen_utils.createScreenEventData(terminal.GetScreenContent())
|
eventQueue.put({"Type":fenrirEventType.ScreenUpdate,
|
||||||
})
|
"Data":screen_utils.createScreenEventData(terminal.GetScreenContent())
|
||||||
except Exception as e: # Process died?
|
})
|
||||||
print(e)
|
except Exception as e: # Process died?
|
||||||
active.value = False
|
print(e)
|
||||||
finally:
|
active.value = False
|
||||||
os.kill(p_pid, signal.SIGTERM)
|
finally:
|
||||||
self.p_out.close()
|
os.kill(p_pid, signal.SIGTERM)
|
||||||
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_attr)
|
self.p_out.close()
|
||||||
eventQueue.put({"Type":fenrirEventType.StopMainLoop,"Data":None})
|
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_attr)
|
||||||
sys.exit(0)
|
eventQueue.put({"Type":fenrirEventType.StopMainLoop,"Data":None})
|
||||||
|
sys.exit(0)
|
||||||
def getCurrApplication(self):
|
|
||||||
pass
|
def getCurrApplication(self):
|
||||||
|
pass
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user