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1 | 1 | # zeroconf.py - zeroconf support for Mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms of |
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6 | 6 | # the GNU General Public License (version 2), incorporated herein by |
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7 | 7 | # reference. |
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8 | 8 | |
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9 | 9 | '''zeroconf support for mercurial repositories |
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10 | 10 | |
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11 | 11 | Zeroconf enabled repositories will be announced in a network without the need |
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12 | 12 | to configure a server or a service. They can be discovered without knowing |
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13 | 13 | their actual IP address. |
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14 | 14 | |
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15 | 15 | To use the zeroconf extension add the following entry to your hgrc file: |
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16 | 16 | |
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17 | 17 | [extensions] |
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18 | 18 | hgext.zeroconf = |
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19 | 19 | |
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20 | 20 | To allow other people to discover your repository using run "hg serve" in your |
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21 | 21 | repository. |
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22 | 22 | |
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23 | 23 | $ cd test |
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24 | 24 | $ hg serve |
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25 | 25 | |
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26 | 26 | You can discover zeroconf enabled repositories by running "hg paths". |
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27 | 27 | |
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28 | 28 | $ hg paths |
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29 | 29 | zc-test = http://example.com:8000/test |
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30 | 30 | ''' |
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31 | 31 | |
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32 | 32 | import Zeroconf, socket, time, os |
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33 | 33 | from mercurial import ui |
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34 | 34 | from mercurial import extensions |
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35 | 35 | from mercurial.hgweb import hgweb_mod |
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36 | 36 | from mercurial.hgweb import hgwebdir_mod |
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37 | 37 | |
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38 | 38 | # publish |
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39 | 39 | |
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40 | 40 | server = None |
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41 | 41 | localip = None |
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42 | 42 | |
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43 | 43 | def getip(): |
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44 | 44 | # finds external-facing interface without sending any packets (Linux) |
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45 | 45 | try: |
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46 | 46 | s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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47 | 47 | s.connect(('1.0.0.1', 0)) |
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48 | 48 | ip = s.getsockname()[0] |
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49 | 49 | return ip |
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50 | 50 | except: |
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51 | 51 | pass |
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52 | 52 | |
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53 | 53 | # Generic method, sometimes gives useless results |
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54 | 54 | dumbip = socket.gethostbyaddr(socket.gethostname())[2][0] |
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55 | if not dumbip.startswith('127.'): | |
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55 | if not dumbip.startswith('127.') and ':' not in dumbip: | |
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56 | 56 | return dumbip |
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57 | 57 | |
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58 | 58 | # works elsewhere, but actually sends a packet |
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59 | 59 | try: |
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60 | 60 | s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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61 | 61 | s.connect(('1.0.0.1', 1)) |
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62 | 62 | ip = s.getsockname()[0] |
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63 | 63 | return ip |
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64 | 64 | except: |
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65 | 65 | pass |
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66 | 66 | |
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67 | 67 | return dumbip |
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68 | 68 | |
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69 | 69 | def publish(name, desc, path, port): |
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70 | 70 | global server, localip |
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71 | 71 | if not server: |
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72 | 72 | try: |
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73 | 73 | server = Zeroconf.Zeroconf() |
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74 | 74 | except socket.gaierror: |
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75 | 75 | # if we have no internet connection, this can happen. |
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76 | 76 | return |
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77 | 77 | ip = getip() |
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78 | 78 | localip = socket.inet_aton(ip) |
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79 | 79 | |
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80 | 80 | parts = socket.gethostname().split('.') |
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81 | 81 | host = parts[0] + ".local" |
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82 | 82 | |
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83 | 83 | # advertise to browsers |
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84 | 84 | svc = Zeroconf.ServiceInfo('_http._tcp.local.', |
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85 | 85 | name + '._http._tcp.local.', |
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86 | 86 | server = host, |
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87 | 87 | port = port, |
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88 | 88 | properties = {'description': desc, |
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89 | 89 | 'path': "/" + path}, |
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90 | 90 | address = localip, weight = 0, priority = 0) |
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91 | 91 | server.registerService(svc) |
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92 | 92 | |
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93 | 93 | # advertise to Mercurial clients |
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94 | 94 | svc = Zeroconf.ServiceInfo('_hg._tcp.local.', |
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95 | 95 | name + '._hg._tcp.local.', |
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96 | 96 | server = host, |
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97 | 97 | port = port, |
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98 | 98 | properties = {'description': desc, |
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99 | 99 | 'path': "/" + path}, |
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100 | 100 | address = localip, weight = 0, priority = 0) |
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101 | 101 | server.registerService(svc) |
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102 | 102 | |
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103 | 103 | class hgwebzc(hgweb_mod.hgweb): |
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104 | 104 | def __init__(self, repo, name=None): |
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105 | 105 | super(hgwebzc, self).__init__(repo, name) |
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106 | 106 | name = self.reponame or os.path.basename(repo.root) |
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107 | 107 | desc = self.repo.ui.config("web", "description", name) |
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108 | 108 | publish(name, desc, name, int(repo.ui.config("web", "port", 8000))) |
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109 | 109 | |
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110 | 110 | class hgwebdirzc(hgwebdir_mod.hgwebdir): |
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111 | 111 | def run(self): |
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112 | 112 | for r, p in self.repos: |
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113 | 113 | u = ui.ui(parentui=self.parentui) |
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114 | 114 | u.readconfig(os.path.join(p, '.hg', 'hgrc')) |
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115 | 115 | n = os.path.basename(r) |
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116 | 116 | publish(n, "hgweb", p, int(u.config("web", "port", 8000))) |
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117 | 117 | return super(hgwebdirzc, self).run() |
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118 | 118 | |
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119 | 119 | # listen |
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120 | 120 | |
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121 | 121 | class listener(object): |
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122 | 122 | def __init__(self): |
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123 | 123 | self.found = {} |
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124 | 124 | def removeService(self, server, type, name): |
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125 | 125 | if repr(name) in self.found: |
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126 | 126 | del self.found[repr(name)] |
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127 | 127 | def addService(self, server, type, name): |
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128 | 128 | self.found[repr(name)] = server.getServiceInfo(type, name) |
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129 | 129 | |
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130 | 130 | def getzcpaths(): |
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131 | 131 | server = Zeroconf.Zeroconf() |
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132 | 132 | l = listener() |
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133 | 133 | browser = Zeroconf.ServiceBrowser(server, "_hg._tcp.local.", l) |
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134 | 134 | time.sleep(1) |
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135 | 135 | server.close() |
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136 | 136 | for v in l.found.values(): |
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137 | 137 | n = v.name[:v.name.index('.')] |
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138 | 138 | n.replace(" ", "-") |
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139 | 139 | u = "http://%s:%s%s" % (socket.inet_ntoa(v.address), v.port, |
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140 | 140 | v.properties.get("path", "/")) |
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141 | 141 | yield "zc-" + n, u |
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142 | 142 | |
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143 | 143 | def config(orig, self, section, key, default=None, untrusted=False): |
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144 | 144 | if section == "paths" and key.startswith("zc-"): |
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145 | 145 | for n, p in getzcpaths(): |
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146 | 146 | if n == key: |
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147 | 147 | return p |
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148 | 148 | return orig(self, section, key, default, untrusted) |
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149 | 149 | |
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150 | 150 | def configitems(orig, self, section, untrusted=False): |
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151 | 151 | r = orig(self, section, untrusted) |
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152 | 152 | if section == "paths": |
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153 | 153 | r += getzcpaths() |
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154 | 154 | return r |
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155 | 155 | |
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156 | 156 | extensions.wrapfunction(ui.ui, 'config', config) |
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157 | 157 | extensions.wrapfunction(ui.ui, 'configitems', configitems) |
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158 | 158 | hgweb_mod.hgweb = hgwebzc |
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159 | 159 | hgwebdir_mod.hgwebdir = hgwebdirzc |
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