Mercurial > hg
annotate hgext/zeroconf/__init__.py @ 9296:5043a5b16d91
gendoc: rename underlined/bold to section/subsection
author | Martin Geisler <mg@lazybytes.net> |
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date | Fri, 31 Jul 2009 11:40:03 +0200 |
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1 # zeroconf.py - zeroconf support for Mercurial |
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2 # |
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3 # Copyright 2005-2007 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 of the |
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6 # GNU General Public License version 2, incorporated herein by reference. |
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7 |
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8 '''discover and advertise repositories on the local network |
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9 |
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10 Zeroconf enabled repositories will be announced in a network without |
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11 the need to configure a server or a service. They can be discovered |
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12 without knowing their actual IP address. |
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13 |
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14 To allow other people to discover your repository using run "hg serve" |
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15 in your repository:: |
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16 |
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17 $ cd test |
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18 $ hg serve |
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19 |
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20 You can discover zeroconf enabled repositories by running "hg paths":: |
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21 |
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22 $ hg paths |
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23 zc-test = http://example.com:8000/test |
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24 ''' |
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25 |
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26 import Zeroconf, socket, time, os |
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27 from mercurial import ui |
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28 from mercurial import extensions |
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29 from mercurial.hgweb import hgweb_mod |
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30 from mercurial.hgweb import hgwebdir_mod |
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31 |
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32 # publish |
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33 |
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34 server = None |
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35 localip = None |
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36 |
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37 def getip(): |
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38 # finds external-facing interface without sending any packets (Linux) |
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39 try: |
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40 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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41 s.connect(('1.0.0.1', 0)) |
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42 ip = s.getsockname()[0] |
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43 return ip |
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44 except: |
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45 pass |
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46 |
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47 # Generic method, sometimes gives useless results |
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48 try: |
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49 dumbip = socket.gethostbyaddr(socket.gethostname())[2][0] |
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50 if not dumbip.startswith('127.') and ':' not in dumbip: |
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51 return dumbip |
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52 except socket.gaierror: |
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53 dumbip = '127.0.0.1' |
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54 |
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55 # works elsewhere, but actually sends a packet |
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56 try: |
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57 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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58 s.connect(('1.0.0.1', 1)) |
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59 ip = s.getsockname()[0] |
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60 return ip |
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61 except: |
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62 pass |
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63 |
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64 return dumbip |
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65 |
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66 def publish(name, desc, path, port): |
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67 global server, localip |
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68 if not server: |
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69 ip = getip() |
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70 if ip.startswith('127.'): |
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71 # if we have no internet connection, this can happen. |
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72 return |
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73 localip = socket.inet_aton(ip) |
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74 server = Zeroconf.Zeroconf(ip) |
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75 |
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76 hostname = socket.gethostname().split('.')[0] |
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77 host = hostname + ".local" |
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78 name = "%s-%s" % (hostname, name) |
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79 |
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80 # advertise to browsers |
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81 svc = Zeroconf.ServiceInfo('_http._tcp.local.', |
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82 name + '._http._tcp.local.', |
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83 server = host, |
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84 port = port, |
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85 properties = {'description': desc, |
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86 'path': "/" + path}, |
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87 address = localip, weight = 0, priority = 0) |
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88 server.registerService(svc) |
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89 |
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90 # advertise to Mercurial clients |
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91 svc = Zeroconf.ServiceInfo('_hg._tcp.local.', |
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92 name + '._hg._tcp.local.', |
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93 server = host, |
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94 port = port, |
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95 properties = {'description': desc, |
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96 'path': "/" + path}, |
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97 address = localip, weight = 0, priority = 0) |
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98 server.registerService(svc) |
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99 |
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100 class hgwebzc(hgweb_mod.hgweb): |
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101 def __init__(self, repo, name=None): |
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102 super(hgwebzc, self).__init__(repo, name) |
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103 name = self.reponame or os.path.basename(repo.root) |
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104 desc = self.repo.ui.config("web", "description", name) |
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105 publish(name, desc, name, int(repo.ui.config("web", "port", 8000))) |
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106 |
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107 class hgwebdirzc(hgwebdir_mod.hgwebdir): |
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108 def run(self): |
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109 for r, p in self.repos: |
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110 u = self.ui.copy() |
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111 u.readconfig(os.path.join(p, '.hg', 'hgrc')) |
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112 n = os.path.basename(r) |
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113 publish(n, "hgweb", p, int(u.config("web", "port", 8000))) |
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114 return super(hgwebdirzc, self).run() |
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115 |
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116 # listen |
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117 |
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118 class listener(object): |
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119 def __init__(self): |
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120 self.found = {} |
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121 def removeService(self, server, type, name): |
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122 if repr(name) in self.found: |
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123 del self.found[repr(name)] |
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124 def addService(self, server, type, name): |
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125 self.found[repr(name)] = server.getServiceInfo(type, name) |
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126 |
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127 def getzcpaths(): |
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128 ip = getip() |
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129 if ip.startswith('127.'): |
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130 return |
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131 server = Zeroconf.Zeroconf(ip) |
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132 l = listener() |
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133 Zeroconf.ServiceBrowser(server, "_hg._tcp.local.", l) |
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134 time.sleep(1) |
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135 server.close() |
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136 for v in l.found.values(): |
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137 n = v.name[:v.name.index('.')] |
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138 n.replace(" ", "-") |
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139 u = "http://%s:%s%s" % (socket.inet_ntoa(v.address), v.port, |
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140 v.properties.get("path", "/")) |
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141 yield "zc-" + n, u |
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142 |
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143 def config(orig, self, section, key, default=None, untrusted=False): |
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144 if section == "paths" and key.startswith("zc-"): |
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145 for n, p in getzcpaths(): |
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146 if n == key: |
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147 return p |
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148 return orig(self, section, key, default, untrusted) |
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149 |
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150 def configitems(orig, self, section, untrusted=False): |
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151 r = orig(self, section, untrusted) |
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152 if section == "paths": |
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153 r += getzcpaths() |
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154 return r |
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155 |
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156 extensions.wrapfunction(ui.ui, 'config', config) |
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157 extensions.wrapfunction(ui.ui, 'configitems', configitems) |
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158 hgweb_mod.hgweb = hgwebzc |
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159 hgwebdir_mod.hgwebdir = hgwebdirzc |