annotate mercurial/sshserver.py @ 2419:b17eebc911ae

Initial implementation of hello command for ssh
author Matt Mackall <mpm@selenic.com>
date Fri, 09 Jun 2006 17:47:38 -0500
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1 # sshserver.py - ssh protocol server support for mercurial
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2 #
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3 # Copyright 2005 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7
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8 from demandload import demandload
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9 from i18n import gettext as _
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10 from node import *
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11 demandload(globals(), "sys util")
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12
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13 class sshserver(object):
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14 def __init__(self, ui, repo):
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15 self.ui = ui
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16 self.repo = repo
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17 self.lock = None
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18 self.fin = sys.stdin
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19 self.fout = sys.stdout
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20
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21 sys.stdout = sys.stderr
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22
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23 # Prevent insertion/deletion of CRs
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24 util.set_binary(self.fin)
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25 util.set_binary(self.fout)
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26
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27 def getarg(self):
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28 argline = self.fin.readline()[:-1]
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29 arg, l = argline.split()
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30 val = self.fin.read(int(l))
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31 return arg, val
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32
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33 def respond(self, v):
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34 self.fout.write("%d\n" % len(v))
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35 self.fout.write(v)
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36 self.fout.flush()
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37
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38 def serve_forever(self):
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39 while self.serve_one(): pass
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40 sys.exit(0)
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41
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42 def serve_one(self):
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43 cmd = self.fin.readline()[:-1]
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44 if cmd:
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45 impl = getattr(self, 'do_' + cmd, None)
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46 if impl: impl()
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47 else: self.respond("")
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48 return cmd != ''
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49
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50 def do_heads(self):
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51 h = self.repo.heads()
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52 self.respond(" ".join(map(hex, h)) + "\n")
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53
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54 def do_hello(self):
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55 '''the hello command returns a set of lines describing various
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56 interesting things about the server, in an RFC822-like format.
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57 Currently the only one defined is "capabilities", which
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58 consists of a line in the form:
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59
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60 capabilities: space separated list of tokens
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61 '''
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62
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63 r = "capabilities:\n"
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64 self.respond(r)
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65
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66 def do_lock(self):
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67 self.lock = self.repo.lock()
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68 self.respond("")
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69
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70 def do_unlock(self):
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71 if self.lock:
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72 self.lock.release()
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73 self.lock = None
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74 self.respond("")
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75
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76 def do_branches(self):
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77 arg, nodes = self.getarg()
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78 nodes = map(bin, nodes.split(" "))
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79 r = []
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80 for b in self.repo.branches(nodes):
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81 r.append(" ".join(map(hex, b)) + "\n")
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82 self.respond("".join(r))
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83
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84 def do_between(self):
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85 arg, pairs = self.getarg()
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86 pairs = [map(bin, p.split("-")) for p in pairs.split(" ")]
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87 r = []
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88 for b in self.repo.between(pairs):
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89 r.append(" ".join(map(hex, b)) + "\n")
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90 self.respond("".join(r))
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91
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92 def do_changegroup(self):
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93 nodes = []
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94 arg, roots = self.getarg()
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95 nodes = map(bin, roots.split(" "))
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96
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97 cg = self.repo.changegroup(nodes, 'serve')
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98 while True:
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99 d = cg.read(4096)
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100 if not d:
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101 break
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102 self.fout.write(d)
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103
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104 self.fout.flush()
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105
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106 def do_addchangegroup(self):
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107 if not self.lock:
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108 self.respond("not locked")
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109 return
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110
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111 self.respond("")
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112 r = self.repo.addchangegroup(self.fin, 'serve')
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113 self.respond(str(r))