Mercurial > cpython-lru_cache-weakref

annotate Lib/SimpleHTTPServer.py @ 39496:352ffe77b71d legacy-trunk

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Patch #1535500: fix segfault in BZ2File.writelines and make sure it raises the correct exceptions.
author Georg Brandl <georg@python.org>
date Mon, 14 Aug 2006 21:42:55 +0000
parents 32adaad59fb3
children 09f4b460baeb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 """Simple HTTP Server.
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2
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3 This module builds on BaseHTTPServer by implementing the standard GET
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4 and HEAD requests in a fairly straightforward manner.
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5
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6 """
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7
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8
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9 __version__ = "0.6"
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10
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11 __all__ = ["SimpleHTTPRequestHandler"]
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12
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13 import os
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14 import posixpath
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15 import BaseHTTPServer
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16 import urllib
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17 import urlparse
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18 import cgi
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19 import shutil
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20 import mimetypes
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21 try:
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22 from cStringIO import StringIO
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23 except ImportError:
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24 from StringIO import StringIO
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25
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26
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27 class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
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28
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29 """Simple HTTP request handler with GET and HEAD commands.
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30
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31 This serves files from the current directory and any of its
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32 subdirectories. The MIME type for files is determined by
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33 calling the .guess_type() method.
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34
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35 The GET and HEAD requests are identical except that the HEAD
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36 request omits the actual contents of the file.
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37
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38 """
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39
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40 server_version = "SimpleHTTP/" + __version__
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41
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42 def do_GET(self):
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43 """Serve a GET request."""
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44 f = self.send_head()
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45 if f:
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46 self.copyfile(f, self.wfile)
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47 f.close()
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48
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49 def do_HEAD(self):
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50 """Serve a HEAD request."""
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51 f = self.send_head()
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52 if f:
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53 f.close()
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54
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55 def send_head(self):
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56 """Common code for GET and HEAD commands.
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57
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58 This sends the response code and MIME headers.
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59
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60 Return value is either a file object (which has to be copied
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61 to the outputfile by the caller unless the command was HEAD,
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62 and must be closed by the caller under all circumstances), or
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63 None, in which case the caller has nothing further to do.
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64
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65 """
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66 path = self.translate_path(self.path)
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67 f = None
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68 if os.path.isdir(path):
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69 for index in "index.html", "index.htm":
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70 index = os.path.join(path, index)
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71 if os.path.exists(index):
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72 path = index
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73 break
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74 else:
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75 return self.list_directory(path)
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76 ctype = self.guess_type(path)
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77 if ctype.startswith('text/'):
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78 mode = 'r'
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79 else:
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80 mode = 'rb'
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81 try:
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82 f = open(path, mode)
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83 except IOError:
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84 self.send_error(404, "File not found")
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85 return None
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86 self.send_response(200)
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87 self.send_header("Content-type", ctype)
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88 fs = os.fstat(f.fileno())
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89 self.send_header("Content-Length", str(fs[6]))
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90 self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
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91 self.end_headers()
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92 return f
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93
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94 def list_directory(self, path):
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95 """Helper to produce a directory listing (absent index.html).
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96
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97 Return value is either a file object, or None (indicating an
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98 error). In either case, the headers are sent, making the
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99 interface the same as for send_head().
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100
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101 """
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102 try:
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103 list = os.listdir(path)
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104 except os.error:
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105 self.send_error(404, "No permission to list directory")
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106 return None
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107 list.sort(key=lambda a: a.lower())
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108 f = StringIO()
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109 displaypath = cgi.escape(urllib.unquote(self.path))
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110 f.write("<title>Directory listing for %s</title>\n" % displaypath)
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111 f.write("<h2>Directory listing for %s</h2>\n" % displaypath)
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112 f.write("<hr>\n<ul>\n")
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113 for name in list:
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114 fullname = os.path.join(path, name)
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115 displayname = linkname = name
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116 # Append / for directories or @ for symbolic links
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117 if os.path.isdir(fullname):
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118 displayname = name + "/"
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119 linkname = name + "/"
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120 if os.path.islink(fullname):
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121 displayname = name + "@"
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122 # Note: a link to a directory displays with @ and links with /
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123 f.write('<li><a href="%s">%s</a>\n'
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124 % (urllib.quote(linkname), cgi.escape(displayname)))
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125 f.write("</ul>\n<hr>\n")
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126 length = f.tell()
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127 f.seek(0)
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128 self.send_response(200)
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129 self.send_header("Content-type", "text/html")
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130 self.send_header("Content-Length", str(length))
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131 self.end_headers()
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132 return f
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133
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134 def translate_path(self, path):
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135 """Translate a /-separated PATH to the local filename syntax.
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136
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137 Components that mean special things to the local file system
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138 (e.g. drive or directory names) are ignored. (XXX They should
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139 probably be diagnosed.)
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140
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141 """
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142 # abandon query parameters
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143 path = urlparse.urlparse(path)[2]
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c9cd4bbed8e2 Moshe Zadka writes: When deploying SimpleHTTPServer, I noticed a
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144 path = posixpath.normpath(urllib.unquote(path))
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145 words = path.split('/')
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146 words = filter(None, words)
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147 path = os.getcwd()
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148 for word in words:
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149 drive, word = os.path.splitdrive(word)
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150 head, word = os.path.split(word)
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151 if word in (os.curdir, os.pardir): continue
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152 path = os.path.join(path, word)
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153 return path
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154
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155 def copyfile(self, source, outputfile):
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156 """Copy all data between two file objects.
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157
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158 The SOURCE argument is a file object open for reading
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159 (or anything with a read() method) and the DESTINATION
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160 argument is a file object open for writing (or
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161 anything with a write() method).
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162
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163 The only reason for overriding this would be to change
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164 the block size or perhaps to replace newlines by CRLF
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165 -- note however that this the default server uses this
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166 to copy binary data as well.
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167
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168 """
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169 shutil.copyfileobj(source, outputfile)
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170
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171 def guess_type(self, path):
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172 """Guess the type of a file.
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173
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174 Argument is a PATH (a filename).
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175
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176 Return value is a string of the form type/subtype,
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177 usable for a MIME Content-type header.
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178
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179 The default implementation looks the file's extension
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Andrew M. Kuchling <amk@amk.ca>
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180 up in the table self.extensions_map, using application/octet-stream
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181 as a default; however it would be permissible (if
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182 slow) to look inside the data to make a better guess.
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183
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184 """
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185
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186 base, ext = posixpath.splitext(path)
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187 if ext in self.extensions_map:
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188 return self.extensions_map[ext]
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189 ext = ext.lower()
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190 if ext in self.extensions_map:
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191 return self.extensions_map[ext]
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192 else:
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193 return self.extensions_map['']
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32adaad59fb3 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 38827
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194
38827
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Georg Brandl <georg@python.org>
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195 if not mimetypes.inited:
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196 mimetypes.init() # try to read system mime.types
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197 extensions_map = mimetypes.types_map.copy()
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198 extensions_map.update({
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199 '': 'application/octet-stream', # Default
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200 '.py': 'text/plain',
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201 '.c': 'text/plain',
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202 '.h': 'text/plain',
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203 })
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204
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205
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206 def test(HandlerClass = SimpleHTTPRequestHandler,
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207 ServerClass = BaseHTTPServer.HTTPServer):
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208 BaseHTTPServer.test(HandlerClass, ServerClass)
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209
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210
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211 if __name__ == '__main__':
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212 test()