Mercurial > hg
annotate mercurial/sshserver.py @ 6409:47f4a47161b4
merge with crew
author | Benoit Boissinot <benoit.boissinot@ens-lyon.org> |
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date | Sun, 30 Mar 2008 20:31:35 +0200 |
parents | f89fd07fc51d |
children | 3b6f18851d87 |
rev | line source |
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2399 | 1 # sshserver.py - ssh protocol server support for mercurial |
2396 | 2 # |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
2859 | 4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
2396 | 5 # |
6 # This software may be used and distributed according to the terms | |
7 # of the GNU General Public License, incorporated herein by reference. | |
8 | |
3891 | 9 from i18n import _ |
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10 from node import bin, hex |
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11 import os, streamclone, sys, tempfile, util, hook |
2396 | 12 |
13 class sshserver(object): | |
14 def __init__(self, ui, repo): | |
15 self.ui = ui | |
16 self.repo = repo | |
17 self.lock = None | |
18 self.fin = sys.stdin | |
19 self.fout = sys.stdout | |
20 | |
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21 hook.redirect(True) |
2396 | 22 sys.stdout = sys.stderr |
23 | |
24 # Prevent insertion/deletion of CRs | |
25 util.set_binary(self.fin) | |
26 util.set_binary(self.fout) | |
27 | |
28 def getarg(self): | |
29 argline = self.fin.readline()[:-1] | |
30 arg, l = argline.split() | |
31 val = self.fin.read(int(l)) | |
32 return arg, val | |
33 | |
34 def respond(self, v): | |
35 self.fout.write("%d\n" % len(v)) | |
36 self.fout.write(v) | |
37 self.fout.flush() | |
38 | |
39 def serve_forever(self): | |
40 while self.serve_one(): pass | |
41 sys.exit(0) | |
42 | |
43 def serve_one(self): | |
44 cmd = self.fin.readline()[:-1] | |
45 if cmd: | |
46 impl = getattr(self, 'do_' + cmd, None) | |
47 if impl: impl() | |
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48 else: self.respond("") |
2396 | 49 return cmd != '' |
50 | |
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51 def do_lookup(self): |
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52 arg, key = self.getarg() |
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53 assert arg == 'key' |
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54 try: |
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55 r = hex(self.repo.lookup(key)) |
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56 success = 1 |
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57 except Exception,inst: |
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58 r = str(inst) |
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59 success = 0 |
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60 self.respond("%s %s\n" % (success, r)) |
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61 |
2396 | 62 def do_heads(self): |
63 h = self.repo.heads() | |
64 self.respond(" ".join(map(hex, h)) + "\n") | |
65 | |
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66 def do_hello(self): |
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67 '''the hello command returns a set of lines describing various |
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68 interesting things about the server, in an RFC822-like format. |
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69 Currently the only one defined is "capabilities", which |
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70 consists of a line in the form: |
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71 |
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72 capabilities: space separated list of tokens |
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73 ''' |
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74 |
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75 caps = ['unbundle', 'lookup', 'changegroupsubset'] |
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76 if self.ui.configbool('server', 'uncompressed'): |
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77 caps.append('stream=%d' % self.repo.changelog.version) |
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78 self.respond("capabilities: %s\n" % (' '.join(caps),)) |
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79 |
2396 | 80 def do_lock(self): |
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81 '''DEPRECATED - allowing remote client to lock repo is not safe''' |
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82 |
2396 | 83 self.lock = self.repo.lock() |
84 self.respond("") | |
85 | |
86 def do_unlock(self): | |
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87 '''DEPRECATED''' |
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88 |
2396 | 89 if self.lock: |
90 self.lock.release() | |
91 self.lock = None | |
92 self.respond("") | |
93 | |
94 def do_branches(self): | |
95 arg, nodes = self.getarg() | |
96 nodes = map(bin, nodes.split(" ")) | |
97 r = [] | |
98 for b in self.repo.branches(nodes): | |
99 r.append(" ".join(map(hex, b)) + "\n") | |
100 self.respond("".join(r)) | |
101 | |
102 def do_between(self): | |
103 arg, pairs = self.getarg() | |
104 pairs = [map(bin, p.split("-")) for p in pairs.split(" ")] | |
105 r = [] | |
106 for b in self.repo.between(pairs): | |
107 r.append(" ".join(map(hex, b)) + "\n") | |
108 self.respond("".join(r)) | |
109 | |
110 def do_changegroup(self): | |
111 nodes = [] | |
112 arg, roots = self.getarg() | |
113 nodes = map(bin, roots.split(" ")) | |
114 | |
115 cg = self.repo.changegroup(nodes, 'serve') | |
116 while True: | |
117 d = cg.read(4096) | |
118 if not d: | |
119 break | |
120 self.fout.write(d) | |
121 | |
122 self.fout.flush() | |
123 | |
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124 def do_changegroupsubset(self): |
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125 bases = [] |
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126 heads = [] |
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127 argmap = dict([self.getarg(), self.getarg()]) |
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128 bases = [bin(n) for n in argmap['bases'].split(' ')] |
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129 heads = [bin(n) for n in argmap['heads'].split(' ')] |
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130 |
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131 cg = self.repo.changegroupsubset(bases, heads, 'serve') |
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132 while True: |
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133 d = cg.read(4096) |
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134 if not d: |
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135 break |
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136 self.fout.write(d) |
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137 |
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138 self.fout.flush() |
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139 |
2396 | 140 def do_addchangegroup(self): |
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141 '''DEPRECATED''' |
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142 |
2396 | 143 if not self.lock: |
144 self.respond("not locked") | |
145 return | |
146 | |
147 self.respond("") | |
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148 r = self.repo.addchangegroup(self.fin, 'serve', self.client_url()) |
2396 | 149 self.respond(str(r)) |
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150 |
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151 def client_url(self): |
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152 client = os.environ.get('SSH_CLIENT', '').split(' ', 1)[0] |
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153 return 'remote:ssh:' + client |
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154 |
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155 def do_unbundle(self): |
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156 their_heads = self.getarg()[1].split() |
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157 |
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158 def check_heads(): |
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159 heads = map(hex, self.repo.heads()) |
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160 return their_heads == [hex('force')] or their_heads == heads |
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161 |
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162 # fail early if possible |
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163 if not check_heads(): |
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164 self.respond(_('unsynced changes')) |
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165 return |
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166 |
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167 self.respond('') |
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168 |
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169 # write bundle data to temporary file because it can be big |
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170 |
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171 try: |
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172 fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-') |
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173 fp = os.fdopen(fd, 'wb+') |
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174 |
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175 count = int(self.fin.readline()) |
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176 while count: |
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177 fp.write(self.fin.read(count)) |
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178 count = int(self.fin.readline()) |
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179 |
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180 was_locked = self.lock is not None |
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181 if not was_locked: |
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182 self.lock = self.repo.lock() |
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183 try: |
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184 if not check_heads(): |
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185 # someone else committed/pushed/unbundled while we |
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186 # were transferring data |
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187 self.respond(_('unsynced changes')) |
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188 return |
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189 self.respond('') |
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190 |
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191 # push can proceed |
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192 |
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193 fp.seek(0) |
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194 r = self.repo.addchangegroup(fp, 'serve', self.client_url()) |
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195 self.respond(str(r)) |
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196 finally: |
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197 if not was_locked: |
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198 self.lock.release() |
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199 self.lock = None |
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200 finally: |
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201 fp.close() |
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202 os.unlink(tempname) |
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203 |
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204 def do_stream_out(self): |
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205 streamclone.stream_out(self.repo, self.fout) |