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