annotate Lib/SimpleHTTPServer.py @ 44825:ef859cd754a7 legacy-trunk

Fixed a wrong assumption in configure.in and Include/pyport.h. The is finite function is not called isfinite() but finite(). Sorry, my fault. :)
author Christian Heimes <christian@cheimes.de>
date Sun, 20 Jan 2008 14:28:28 +0000
parents 09f4b460baeb
children e9724d7abbc2 0e92ef57c0d4
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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 if not self.path.endswith('/'):
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70 # redirect browser - doing basically what apache does
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71 self.send_response(301)
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72 self.send_header("Location", self.path + "/")
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73 self.end_headers()
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74 return None
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75 for index in "index.html", "index.htm":
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76 index = os.path.join(path, index)
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77 if os.path.exists(index):
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78 path = index
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79 break
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80 else:
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81 return self.list_directory(path)
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82 ctype = self.guess_type(path)
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83 if ctype.startswith('text/'):
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84 mode = 'r'
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85 else:
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86 mode = 'rb'
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87 try:
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88 f = open(path, mode)
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89 except IOError:
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90 self.send_error(404, "File not found")
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91 return None
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92 self.send_response(200)
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93 self.send_header("Content-type", ctype)
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94 fs = os.fstat(f.fileno())
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95 self.send_header("Content-Length", str(fs[6]))
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96 self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
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97 self.end_headers()
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98 return f
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99
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100 def list_directory(self, path):
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101 """Helper to produce a directory listing (absent index.html).
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102
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103 Return value is either a file object, or None (indicating an
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104 error). In either case, the headers are sent, making the
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105 interface the same as for send_head().
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106
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107 """
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108 try:
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109 list = os.listdir(path)
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110 except os.error:
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111 self.send_error(404, "No permission to list directory")
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112 return None
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113 list.sort(key=lambda a: a.lower())
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114 f = StringIO()
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115 displaypath = cgi.escape(urllib.unquote(self.path))
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116 f.write("<title>Directory listing for %s</title>\n" % displaypath)
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117 f.write("<h2>Directory listing for %s</h2>\n" % displaypath)
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118 f.write("<hr>\n<ul>\n")
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119 for name in list:
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120 fullname = os.path.join(path, name)
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121 displayname = linkname = name
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122 # Append / for directories or @ for symbolic links
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123 if os.path.isdir(fullname):
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124 displayname = name + "/"
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125 linkname = name + "/"
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126 if os.path.islink(fullname):
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127 displayname = name + "@"
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128 # Note: a link to a directory displays with @ and links with /
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129 f.write('<li><a href="%s">%s</a>\n'
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130 % (urllib.quote(linkname), cgi.escape(displayname)))
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131 f.write("</ul>\n<hr>\n")
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132 length = f.tell()
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133 f.seek(0)
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134 self.send_response(200)
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135 self.send_header("Content-type", "text/html")
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136 self.send_header("Content-Length", str(length))
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137 self.end_headers()
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138 return f
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139
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140 def translate_path(self, path):
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141 """Translate a /-separated PATH to the local filename syntax.
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142
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143 Components that mean special things to the local file system
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144 (e.g. drive or directory names) are ignored. (XXX They should
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145 probably be diagnosed.)
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146
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147 """
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148 # abandon query parameters
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149 path = urlparse.urlparse(path)[2]
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150 path = posixpath.normpath(urllib.unquote(path))
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151 words = path.split('/')
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152 words = filter(None, words)
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153 path = os.getcwd()
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154 for word in words:
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155 drive, word = os.path.splitdrive(word)
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156 head, word = os.path.split(word)
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157 if word in (os.curdir, os.pardir): continue
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158 path = os.path.join(path, word)
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159 return path
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160
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161 def copyfile(self, source, outputfile):
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162 """Copy all data between two file objects.
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163
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164 The SOURCE argument is a file object open for reading
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165 (or anything with a read() method) and the DESTINATION
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166 argument is a file object open for writing (or
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167 anything with a write() method).
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168
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169 The only reason for overriding this would be to change
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170 the block size or perhaps to replace newlines by CRLF
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171 -- note however that this the default server uses this
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172 to copy binary data as well.
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173
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174 """
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175 shutil.copyfileobj(source, outputfile)
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176
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177 def guess_type(self, path):
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178 """Guess the type of a file.
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179
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180 Argument is a PATH (a filename).
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181
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182 Return value is a string of the form type/subtype,
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183 usable for a MIME Content-type header.
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184
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185 The default implementation looks the file's extension
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186 up in the table self.extensions_map, using application/octet-stream
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187 as a default; however it would be permissible (if
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188 slow) to look inside the data to make a better guess.
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189
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190 """
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191
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192 base, ext = posixpath.splitext(path)
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193 if ext in self.extensions_map:
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194 return self.extensions_map[ext]
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195 ext = ext.lower()
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196 if ext in self.extensions_map:
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197 return self.extensions_map[ext]
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198 else:
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199 return self.extensions_map['']
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200
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201 if not mimetypes.inited:
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202 mimetypes.init() # try to read system mime.types
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203 extensions_map = mimetypes.types_map.copy()
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204 extensions_map.update({
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205 '': 'application/octet-stream', # Default
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206 '.py': 'text/plain',
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207 '.c': 'text/plain',
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208 '.h': 'text/plain',
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209 })
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210
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211
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212 def test(HandlerClass = SimpleHTTPRequestHandler,
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213 ServerClass = BaseHTTPServer.HTTPServer):
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214 BaseHTTPServer.test(HandlerClass, ServerClass)
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215
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216
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217 if __name__ == '__main__':
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218 test()