Mercurial > hg
annotate tests/tinyproxy.py @ 42621:99ebde4fec99
commit: improve the files field of changelog for merges
Currently, the files list of merge commits repeats all the deletions
(either actual deletions, or files that got renamed) that happened
between base and p2 of the merge. If p2 is the main branch, the list
can easily be much bigger than the change being merged.
This results in various problems worth improving:
- changelog is bigger than necessary
- `hg log directory` lists many unrelated merge commits, and `hg log
-v -r commit` frequently fills multiple screens worth of files
- it possibly slows down adjustlinkrev, by forcing it to read more
manifests, and that function can certainly be a bottleneck
- the server side of pulls can waste a lot of time simply opening the
filelogs for pointless files (the constant factors for opening even
a tiny filelog is apparently pretty bad)
So stop listing such files as described in the code. Impacted merge
commits and their descendants get a different hash than they would
have without this. This doesn't seem problematic, except for
convert. The previous commit helped with that in the hg->hg case (but
if you do svn->hg twice from scratch, hashes can still change).
The rest of the description is numbers. I don't have much to report,
because recreating the files list of existing repositories is not
easy:
- debugupgradeformat and bundle/unbundle don't recreate the list
- export/import tends to choke quickly applying patches or on
description that contain diffs,
- merge commits from the convert extension don't have the right files
list for reasons orthogonal to the current commit
- replaying the merge with hg update/hg merge/hg revert --all/hg
commit can end up failing in hg revert
- I wasn't sure that using debugsetparents + debugrebuilddirstate
would really build the right thing
I measured commit time before and after this change, in a case with no
files filtered out, several files filtered out (no difference) and 5k
files filtered out (+1% time).
Recreating the 100 more recent merges in a private repo, the
concatenated uncompressed files lists goes from 1.12MB to
0.52MB. Excluding 3 merges that are not representative, then the size
goes from 570k to 15k.
I converted part of mozilla-central, and observed file list shrinking
quite a bit too, starting at the very first merge, 733641d9feaf, going
from 550 files to 10 files (although they have relatively few merges,
so they probably wouldn't care).
Differential Revision: https://phab.mercurial-scm.org/D6613
author | Valentin Gatien-Baron <valentin.gatienbaron@gmail.com> |
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date | Tue, 02 Jul 2019 12:59:58 -0400 |
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1 #!/usr/bin/env python |
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3 from __future__ import absolute_import, print_function |
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4 |
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5 __doc__ = """Tiny HTTP Proxy. |
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6 |
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7 This module implements GET, HEAD, POST, PUT and DELETE methods |
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8 on BaseHTTPServer, and behaves as an HTTP proxy. The CONNECT |
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9 method is also implemented experimentally, but has not been |
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10 tested yet. |
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11 |
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12 Any help will be greatly appreciated. SUZUKI Hisao |
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13 """ |
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14 |
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15 __version__ = "0.2.1" |
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17 import optparse |
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18 import os |
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19 import select |
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20 import socket |
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21 import sys |
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22 |
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23 from mercurial import ( |
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24 pycompat, |
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25 util, |
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26 ) |
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27 |
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28 httpserver = util.httpserver |
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29 socketserver = util.socketserver |
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30 urlreq = util.urlreq |
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31 |
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32 if os.environ.get('HGIPV6', '0') == '1': |
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33 family = socket.AF_INET6 |
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34 else: |
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35 family = socket.AF_INET |
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36 |
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37 class ProxyHandler (httpserver.basehttprequesthandler): |
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38 __base = httpserver.basehttprequesthandler |
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39 __base_handle = __base.handle |
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40 |
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41 server_version = "TinyHTTPProxy/" + __version__ |
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42 rbufsize = 0 # self.rfile Be unbuffered |
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43 |
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44 def handle(self): |
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45 (ip, port) = self.client_address |
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46 allowed = getattr(self, 'allowed_clients', None) |
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47 if allowed is not None and ip not in allowed: |
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48 self.raw_requestline = self.rfile.readline() |
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49 if self.parse_request(): |
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50 self.send_error(403) |
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51 else: |
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52 self.__base_handle() |
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53 |
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54 def log_request(self, code='-', size='-'): |
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55 xheaders = [h for h in self.headers.items() if h[0].startswith('x-')] |
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56 self.log_message('"%s" %s %s%s', |
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57 self.requestline, str(code), str(size), |
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58 ''.join([' %s:%s' % h for h in sorted(xheaders)])) |
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59 # Flush for Windows, so output isn't lost on TerminateProcess() |
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60 sys.stdout.flush() |
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61 sys.stderr.flush() |
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62 |
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63 def _connect_to(self, netloc, soc): |
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64 i = netloc.find(':') |
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65 if i >= 0: |
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66 host_port = netloc[:i], int(netloc[i + 1:]) |
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67 else: |
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68 host_port = netloc, 80 |
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69 print("\t" "connect to %s:%d" % host_port) |
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70 try: soc.connect(host_port) |
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71 except socket.error as arg: |
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72 try: msg = arg[1] |
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73 except (IndexError, TypeError): msg = arg |
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74 self.send_error(404, msg) |
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75 return 0 |
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76 return 1 |
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77 |
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78 def do_CONNECT(self): |
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79 soc = socket.socket(family, socket.SOCK_STREAM) |
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80 try: |
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81 if self._connect_to(self.path, soc): |
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82 self.log_request(200) |
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83 self.wfile.write(pycompat.bytestr(self.protocol_version) + |
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84 b" 200 Connection established\r\n") |
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85 self.wfile.write(b"Proxy-agent: %s\r\n" % |
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86 pycompat.bytestr(self.version_string())) |
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87 self.wfile.write(b"\r\n") |
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88 self._read_write(soc, 300) |
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89 finally: |
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90 print("\t" "bye") |
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91 soc.close() |
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92 self.connection.close() |
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93 |
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94 def do_GET(self): |
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95 (scm, netloc, path, params, query, fragment) = urlreq.urlparse( |
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96 self.path, 'http') |
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97 if scm != 'http' or fragment or not netloc: |
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98 self.send_error(400, "bad url %s" % self.path) |
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99 return |
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100 soc = socket.socket(family, socket.SOCK_STREAM) |
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101 try: |
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102 if self._connect_to(netloc, soc): |
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103 self.log_request() |
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104 url = urlreq.urlunparse(('', '', path, params, query, '')) |
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105 soc.send(b"%s %s %s\r\n" % ( |
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106 pycompat.bytestr(self.command), |
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107 pycompat.bytestr(url), |
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108 pycompat.bytestr(self.request_version))) |
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109 self.headers['Connection'] = 'close' |
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110 del self.headers['Proxy-Connection'] |
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111 for key, val in self.headers.items(): |
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112 soc.send(b"%s: %s\r\n" % (pycompat.bytestr(key), |
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113 pycompat.bytestr(val))) |
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114 soc.send(b"\r\n") |
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115 self._read_write(soc) |
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116 finally: |
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117 print("\t" "bye") |
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118 soc.close() |
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119 self.connection.close() |
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120 |
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121 def _read_write(self, soc, max_idling=20): |
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122 iw = [self.connection, soc] |
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123 ow = [] |
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124 count = 0 |
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125 while True: |
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126 count += 1 |
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127 (ins, _, exs) = select.select(iw, ow, iw, 3) |
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128 if exs: |
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129 break |
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130 if ins: |
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131 for i in ins: |
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132 if i is soc: |
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133 out = self.connection |
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134 else: |
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135 out = soc |
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136 try: |
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137 data = i.recv(8192) |
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138 except socket.error: |
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139 break |
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140 if data: |
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141 out.send(data) |
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142 count = 0 |
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143 else: |
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144 print("\t" "idle", count) |
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145 if count == max_idling: |
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146 break |
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147 |
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148 do_HEAD = do_GET |
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149 do_POST = do_GET |
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150 do_PUT = do_GET |
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151 do_DELETE = do_GET |
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152 |
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153 class ThreadingHTTPServer (socketserver.ThreadingMixIn, |
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154 httpserver.httpserver): |
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155 def __init__(self, *args, **kwargs): |
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156 httpserver.httpserver.__init__(self, *args, **kwargs) |
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157 a = open("proxy.pid", "w") |
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158 a.write(str(os.getpid()) + "\n") |
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159 a.close() |
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160 |
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161 def runserver(port=8000, bind=""): |
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162 server_address = (bind, port) |
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163 ProxyHandler.protocol_version = "HTTP/1.0" |
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164 httpd = ThreadingHTTPServer(server_address, ProxyHandler) |
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165 sa = httpd.socket.getsockname() |
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166 print("Serving HTTP on", sa[0], "port", sa[1], "...") |
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167 try: |
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168 httpd.serve_forever() |
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169 except KeyboardInterrupt: |
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170 print("\nKeyboard interrupt received, exiting.") |
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171 httpd.server_close() |
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172 sys.exit(0) |
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173 |
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174 if __name__ == '__main__': |
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175 argv = sys.argv |
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176 if argv[1:] and argv[1] in ('-h', '--help'): |
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177 print(argv[0], "[port [allowed_client_name ...]]") |
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178 else: |
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179 if argv[2:]: |
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180 allowed = [] |
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181 for name in argv[2:]: |
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182 client = socket.gethostbyname(name) |
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183 allowed.append(client) |
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184 print("Accept: %s (%s)" % (client, name)) |
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185 ProxyHandler.allowed_clients = allowed |
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186 del argv[2:] |
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187 else: |
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188 print("Any clients will be served...") |
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189 |
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190 parser = optparse.OptionParser() |
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191 parser.add_option('-b', '--bind', metavar='ADDRESS', |
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192 help='Specify alternate bind address ' |
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193 '[default: all interfaces]', default='') |
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194 (options, args) = parser.parse_args() |
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195 port = 8000 |
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196 if len(args) == 1: |
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197 port = int(args[0]) |
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198 runserver(port, options.bind) |