sapling/edenscm/mercurial/sshserver.py
Xavier Deguillard c5957985a3 use pycompat.range instead of xrange
Summary: The xrange function doesn't exist in python3, use the pycompat version instead.

Reviewed By: ikostia

Differential Revision: D17607522

fbshipit-source-id: c7b992071ad7933372033892ca99e240aa11ccba
2019-09-26 15:29:48 -07:00

148 lines
4.3 KiB
Python

# sshserver.py - ssh protocol server support for mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
import os
import socket
import sys
from . import encoding, error, hook, util, wireproto
from .i18n import _
from .pycompat import range
class sshserver(wireproto.abstractserverproto):
def __init__(self, ui, repo):
self.ui = ui
self.repo = repo
self.lock = None
self.fin = ui.fin
self.fout = ui.fout
self.name = "ssh"
hook.redirect(True)
ui.fout = repo.ui.fout = ui.ferr
# Prevent insertion/deletion of CRs
util.setbinary(self.fin)
util.setbinary(self.fout)
def getargs(self, args):
data = {}
keys = args.split()
for n in range(len(keys)):
argline = self.fin.readline()[:-1]
arg, l = argline.split()
if arg not in keys:
raise error.Abort(_("unexpected parameter %r") % arg)
if arg == "*":
star = {}
for k in range(int(l)):
argline = self.fin.readline()[:-1]
arg, l = argline.split()
val = self.fin.read(int(l))
star[arg] = val
data["*"] = star
else:
val = self.fin.read(int(l))
data[arg] = val
return [data[k] for k in keys]
def getarg(self, name):
return self.getargs(name)[0]
def getfile(self, fpout):
self.sendresponse("")
count = int(self.fin.readline())
while count:
fpout.write(self.fin.read(count))
count = int(self.fin.readline())
def redirect(self):
pass
def sendresponse(self, v):
self.fout.write("%d\n" % len(v))
self.fout.write(v)
self.fout.flush()
def sendstream(self, source):
write = self.fout.write
if source.reader:
gen = iter(lambda: source.reader.read(4096), "")
else:
gen = source.gen
for chunk in gen:
write(chunk)
self.fout.flush()
def sendpushresponse(self, rsp):
self.sendresponse("")
self.sendresponse(str(rsp.res))
def sendpusherror(self, rsp):
self.sendresponse(rsp.res)
def sendooberror(self, rsp):
self.ui.ferr.write("%s\n-\n" % rsp.message)
self.ui.ferr.flush()
self.fout.write("\n")
self.fout.flush()
def serve_forever(self):
try:
while self.serve_one():
pass
finally:
if self.lock is not None:
self.lock.release()
sys.exit(0)
handlers = {
str: sendresponse,
wireproto.streamres: sendstream,
wireproto.pushres: sendpushresponse,
wireproto.pusherr: sendpusherror,
wireproto.ooberror: sendooberror,
}
def serve_one(self):
cmd = self.fin.readline()[:-1]
if cmd:
if util.safehasattr(util, "setprocname"):
client = encoding.environ.get("SSH_CLIENT", "").split(" ")[0]
# Resolve IP to hostname
try:
client = socket.gethostbyaddr(client)[0]
except (socket.error, IndexError):
pass
reponame = os.path.basename(self.repo.root)
title = "hg serve (%s)" % " ".join(
filter(None, [reponame, cmd, client])
)
util.setprocname(title)
if cmd in wireproto.commands:
rsp = wireproto.dispatch(self.repo, self, cmd)
self.handlers[rsp.__class__](self, rsp)
else:
impl = getattr(self, "do_" + cmd, None)
if impl:
r = impl()
if r is not None:
self.sendresponse(r)
else:
self.sendresponse("")
return cmd != ""
def _client(self):
client = encoding.environ.get("SSH_CLIENT", "").split(" ", 1)[0]
return "remote:ssh:" + client