def shell_stream(request):
"""Execute command via SSH and stream output
Streams output using the hidden iframe technique.
"""
def parse(lines):
"""Generator function that converts stdout_lines to html with
js which it streams in a hidden iframe.
"""
# send some blank data to fill the initial buffer and get (webkit)
# browsers to display right away what's sent
#yield 1024*'\0'
# start the html response
yield "<html><body>\n"
js = "<script type='text/javascript'>parent.appendShell('%s', '%s');</script>\n"
for line in lines:
# get commands output, line by line
clear_line = line.replace('\'', '\\\'')
clear_line = clear_line.replace('\n', '<br/>')
clear_line = clear_line.replace('\r', '')
#.replace('<','<').replace('>', '>')
ret = js % (clear_line, cmd_id)
yield ret
js = "<script type='text/javascript'>"
js += "parent.completeShell(%s, '%s');</script>\n"
yield js % (1, cmd_id) # FIXME
yield "</body></html>\n"
log.info("got shell_stream request")
backend_id = request.matchdict['backend']
machine_id = request.matchdict['machine']
cmd = request.params.get('command')
cmd_id = request.params.get('command_id').encode('utf-8', 'ignore')
host = request.params.get('host')
try:
if not cmd:
raise RequiredParameterMissingError("command")
if not host:
raise RequiredParameterMissingError("host")
user = user_from_request(request)
shell = Shell(host)
shell.autoconfigure(user, backend_id, machine_id)
# stdout_lines is a generator that spits out lines of combined
# stdout and stderr output. cmd is executed via the shell on the background
# and the stdout_lines generator is immediately available. stdout_lines
# will block if no line is in the buffer and will stop iterating once the
# command is completed and the pipe is closed.
stdout_lines = shell.command_stream(cmd)
except Exception as e:
message = ["Failed to execute command\n", "Error: %s \n" % e]
return Response(status=500, app_iter=parse(message))
return Response(status=200, app_iter=parse(stdout_lines))
def shell_stream(request):
"""Execute command via SSH and stream output
Streams output using the hidden iframe technique.
"""
def parse(lines):
"""Generator function that converts stdout_lines to html with
js which it streams in a hidden iframe.
"""
# send some blank data to fill the initial buffer and get (webkit)
# browsers to display right away what's sent
#yield 1024*'\0'
# start the html response
yield "<html><body>\n"
js = "<script type='text/javascript'>parent.appendShell('%s', '%s');</script>\n"
for line in lines:
# get commands output, line by line
clear_line = line.replace('\'', '\\\'')
clear_line = clear_line.replace('\n', '<br/>')
clear_line = clear_line.replace('\r', '')
#.replace('<','<').replace('>', '>')
ret = js % (clear_line, cmd_id)
yield ret
js = "<script type='text/javascript'>"
js += "parent.completeShell(%s, '%s');</script>\n"
yield js % (1, cmd_id) # FIXME
yield "</body></html>\n"
log.info("got shell_stream request")
backend_id = request.matchdict['backend']
machine_id = request.matchdict['machine']
cmd = request.params.get('command')
cmd_id = request.params.get('command_id').encode('utf-8', 'ignore')
host = request.params.get('host')
try:
if not cmd:
raise RequiredParameterMissingError("command")
if not host:
raise RequiredParameterMissingError("host")
user = user_from_request(request)
shell = Shell(host)
shell.autoconfigure(user, backend_id, machine_id)
# stdout_lines is a generator that spits out lines of combined
# stdout and stderr output. cmd is executed via the shell on the background
# and the stdout_lines generator is immediately available. stdout_lines
# will block if no line is in the buffer and will stop iterating once the
# command is completed and the pipe is closed.
stdout_lines = shell.command_stream(cmd)
except Exception as e:
message = ["Failed to execute command\n", "Error: %s \n" % e]
return Response(status=500, app_iter=parse(message))
return Response(status=200, app_iter=parse(stdout_lines))
