Mercurial > cpython-lru_cache-weakref
annotate Lib/http/server.py @ 87690:66c1c9f32567 default tip
Add use_weakref option to functools.lru_cache
The use_weakref option makes lru_cache create weak references to the function
arguments when creating the cache key, which prevents them from staying in the
memory forever even after all other references to them are gone.
This is a proof of concept for http://bugs.python.org/issue19859
| author | Radomir Dopieralski <devel@sheep.art.pl> |
|---|---|
| date | Tue, 03 Dec 2013 16:02:48 +0100 |
| parents | d6ad412dee40 |
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| rev | line source |
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1 """HTTP server classes. |
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2 |
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3 Note: BaseHTTPRequestHandler doesn't implement any HTTP request; see |
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4 SimpleHTTPRequestHandler for simple implementations of GET, HEAD and POST, |
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5 and CGIHTTPRequestHandler for CGI scripts. |
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6 |
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7 It does, however, optionally implement HTTP/1.1 persistent connections, |
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8 as of version 0.3. |
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9 |
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10 Notes on CGIHTTPRequestHandler |
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11 ------------------------------ |
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12 |
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13 This class implements GET and POST requests to cgi-bin scripts. |
| 2887 | 14 |
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15 If the os.fork() function is not present (e.g. on Windows), |
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16 subprocess.Popen() is used as a fallback, with slightly altered semantics. |
| 2887 | 17 |
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18 In all cases, the implementation is intentionally naive -- all |
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19 requests are executed synchronously. |
| 2887 | 20 |
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21 SECURITY WARNING: DON'T USE THIS CODE UNLESS YOU ARE INSIDE A FIREWALL |
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22 -- it may execute arbitrary Python code or external programs. |
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23 |
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24 Note that status code 200 is sent prior to execution of a CGI script, so |
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25 scripts cannot send other status codes such as 302 (redirect). |
| 2887 | 26 |
| 27 XXX To do: | |
| 28 | |
| 29 - log requests even later (to capture byte count) | |
| 30 - log user-agent header and other interesting goodies | |
| 31 - send error log to separate file | |
| 32 """ | |
| 33 | |
| 34 | |
| 35 # See also: | |
| 36 # | |
| 37 # HTTP Working Group T. Berners-Lee | |
| 38 # INTERNET-DRAFT R. T. Fielding | |
| 39 # <draft-ietf-http-v10-spec-00.txt> H. Frystyk Nielsen | |
| 40 # Expires September 8, 1995 March 8, 1995 | |
| 41 # | |
| 42 # URL: http://www.ics.uci.edu/pub/ietf/http/draft-ietf-http-v10-spec-00.txt | |
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43 # |
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44 # and |
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45 # |
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46 # Network Working Group R. Fielding |
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47 # Request for Comments: 2616 et al |
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48 # Obsoletes: 2068 June 1999 |
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49 # Category: Standards Track |
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50 # |
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51 # URL: http://www.faqs.org/rfcs/rfc2616.html |
| 2887 | 52 |
| 53 # Log files | |
| 54 # --------- | |
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55 # |
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57 # |
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58 # | The logfile format is as follows. Each line consists of: |
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59 # | |
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60 # | host rfc931 authuser [DD/Mon/YYYY:hh:mm:ss] "request" ddd bbbb |
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61 # | |
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62 # | host: Either the DNS name or the IP number of the remote client |
| 2887 | 63 # | rfc931: Any information returned by identd for this person, |
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64 # | - otherwise. |
| 2887 | 65 # | authuser: If user sent a userid for authentication, the user name, |
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66 # | - otherwise. |
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67 # | DD: Day |
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68 # | Mon: Month (calendar name) |
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69 # | YYYY: Year |
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70 # | hh: hour (24-hour format, the machine's timezone) |
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71 # | mm: minutes |
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72 # | ss: seconds |
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73 # | request: The first line of the HTTP request as sent by the client. |
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74 # | ddd: the status code returned by the server, - if not available. |
| 2887 | 75 # | bbbb: the total number of bytes sent, |
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76 # | *not including the HTTP/1.0 header*, - if not available |
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77 # | |
| 2887 | 78 # | You can determine the name of the file accessed through request. |
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79 # |
| 2887 | 80 # (Actually, the latter is only true if you know the server configuration |
| 81 # at the time the request was made!) | |
| 82 | |
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83 __version__ = "0.6" |
| 2887 | 84 |
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85 __all__ = ["HTTPServer", "BaseHTTPRequestHandler"] |
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87 import html |
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88 import email.message |
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89 import email.parser |
| 52368 | 90 import http.client |
| 91 import io | |
| 92 import mimetypes | |
| 93 import os | |
| 94 import posixpath | |
| 95 import select | |
| 96 import shutil | |
| 97 import socket # For gethostbyaddr() | |
| 98 import socketserver | |
| 99 import sys | |
| 100 import time | |
| 101 import urllib.parse | |
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102 import copy |
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103 import argparse |
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104 |
| 2887 | 105 |
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106 # Default error message template |
| 2887 | 107 DEFAULT_ERROR_MESSAGE = """\ |
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108 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" |
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109 "http://www.w3.org/TR/html4/strict.dtd"> |
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110 <html> |
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111 <head> |
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112 <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> |
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113 <title>Error response</title> |
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114 </head> |
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115 <body> |
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116 <h1>Error response</h1> |
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117 <p>Error code: %(code)d</p> |
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118 <p>Message: %(message)s.</p> |
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119 <p>Error code explanation: %(code)s - %(explain)s.</p> |
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120 </body> |
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121 </html> |
| 2887 | 122 """ |
| 123 | |
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124 DEFAULT_ERROR_CONTENT_TYPE = "text/html;charset=utf-8" |
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125 |
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126 def _quote_html(html): |
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127 return html.replace("&", "&").replace("<", "<").replace(">", ">") |
| 2887 | 128 |
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129 class HTTPServer(socketserver.TCPServer): |
| 2887 | 130 |
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131 allow_reuse_address = 1 # Seems to make sense in testing environment |
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| 2887 | 133 def server_bind(self): |
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134 """Override server_bind to store the server name.""" |
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135 socketserver.TCPServer.server_bind(self) |
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136 host, port = self.socket.getsockname()[:2] |
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138 self.server_port = port |
| 2887 | 139 |
| 140 | |
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141 class BaseHTTPRequestHandler(socketserver.StreamRequestHandler): |
| 2887 | 142 |
| 143 """HTTP request handler base class. | |
| 144 | |
| 145 The following explanation of HTTP serves to guide you through the | |
| 146 code as well as to expose any misunderstandings I may have about | |
| 147 HTTP (so you don't need to read the code to figure out I'm wrong | |
| 148 :-). | |
| 149 | |
| 150 HTTP (HyperText Transfer Protocol) is an extensible protocol on | |
| 151 top of a reliable stream transport (e.g. TCP/IP). The protocol | |
| 152 recognizes three parts to a request: | |
| 153 | |
| 154 1. One line identifying the request type and path | |
| 155 2. An optional set of RFC-822-style headers | |
| 156 3. An optional data part | |
| 157 | |
| 158 The headers and data are separated by a blank line. | |
| 159 | |
| 160 The first line of the request has the form | |
| 161 | |
| 162 <command> <path> <version> | |
| 163 | |
| 164 where <command> is a (case-sensitive) keyword such as GET or POST, | |
| 165 <path> is a string containing path information for the request, | |
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166 and <version> should be the string "HTTP/1.0" or "HTTP/1.1". |
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167 <path> is encoded using the URL encoding scheme (using %xx to signify |
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168 the ASCII character with hex code xx). |
| 2887 | 169 |
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170 The specification specifies that lines are separated by CRLF but |
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171 for compatibility with the widest range of clients recommends |
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172 servers also handle LF. Similarly, whitespace in the request line |
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173 is treated sensibly (allowing multiple spaces between components |
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174 and allowing trailing whitespace). |
| 2887 | 175 |
| 176 Similarly, for output, lines ought to be separated by CRLF pairs | |
| 177 but most clients grok LF characters just fine. | |
| 178 | |
| 179 If the first line of the request has the form | |
| 180 | |
| 181 <command> <path> | |
| 182 | |
| 183 (i.e. <version> is left out) then this is assumed to be an HTTP | |
| 184 0.9 request; this form has no optional headers and data part and | |
| 185 the reply consists of just the data. | |
| 186 | |
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187 The reply form of the HTTP 1.x protocol again has three parts: |
| 2887 | 188 |
| 189 1. One line giving the response code | |
| 190 2. An optional set of RFC-822-style headers | |
| 191 3. The data | |
| 192 | |
| 193 Again, the headers and data are separated by a blank line. | |
| 194 | |
| 195 The response code line has the form | |
| 196 | |
| 197 <version> <responsecode> <responsestring> | |
| 198 | |
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199 where <version> is the protocol version ("HTTP/1.0" or "HTTP/1.1"), |
| 2887 | 200 <responsecode> is a 3-digit response code indicating success or |
| 201 failure of the request, and <responsestring> is an optional | |
| 202 human-readable string explaining what the response code means. | |
| 203 | |
| 204 This server parses the request and the headers, and then calls a | |
| 205 function specific to the request type (<command>). Specifically, | |
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206 a request SPAM will be handled by a method do_SPAM(). If no |
| 2887 | 207 such method exists the server sends an error response to the |
| 208 client. If it exists, it is called with no arguments: | |
| 209 | |
| 210 do_SPAM() | |
| 211 | |
| 212 Note that the request name is case sensitive (i.e. SPAM and spam | |
| 213 are different requests). | |
| 214 | |
| 215 The various request details are stored in instance variables: | |
| 216 | |
| 217 - client_address is the client IP address in the form (host, | |
| 218 port); | |
| 219 | |
| 220 - command, path and version are the broken-down request line; | |
| 221 | |
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222 - headers is an instance of email.message.Message (or a derived |
| 2887 | 223 class) containing the header information; |
| 224 | |
| 225 - rfile is a file object open for reading positioned at the | |
| 226 start of the optional input data part; | |
| 227 | |
| 228 - wfile is a file object open for writing. | |
| 229 | |
| 230 IT IS IMPORTANT TO ADHERE TO THE PROTOCOL FOR WRITING! | |
| 231 | |
| 232 The first thing to be written must be the response line. Then | |
| 233 follow 0 or more header lines, then a blank line, and then the | |
| 234 actual data (if any). The meaning of the header lines depends on | |
| 235 the command executed by the server; in most cases, when data is | |
| 236 returned, there should be at least one header line of the form | |
| 237 | |
| 238 Content-type: <type>/<subtype> | |
| 239 | |
| 240 where <type> and <subtype> should be registered MIME types, | |
| 241 e.g. "text/html" or "text/plain". | |
| 242 | |
| 243 """ | |
| 244 | |
| 245 # The Python system version, truncated to its first component. | |
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246 sys_version = "Python/" + sys.version.split()[0] |
| 2887 | 247 |
| 248 # The server software version. You may want to override this. | |
| 249 # The format is multiple whitespace-separated strings, | |
| 250 # where each string is of the form name[/version]. | |
| 251 server_version = "BaseHTTP/" + __version__ | |
| 252 | |
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253 error_message_format = DEFAULT_ERROR_MESSAGE |
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254 error_content_type = DEFAULT_ERROR_CONTENT_TYPE |
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255 |
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256 # The default request version. This only affects responses up until |
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257 # the point where the request line is parsed, so it mainly decides what |
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258 # the client gets back when sending a malformed request line. |
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259 # Most web servers default to HTTP 0.9, i.e. don't send a status line. |
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260 default_request_version = "HTTP/0.9" |
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261 |
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262 def parse_request(self): |
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263 """Parse a request (internal). |
| 2887 | 264 |
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265 The request should be stored in self.raw_requestline; the results |
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266 are in self.command, self.path, self.request_version and |
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267 self.headers. |
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268 |
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269 Return True for success, False for failure; on failure, an |
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270 error is sent back. |
| 2887 | 271 |
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272 """ |
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273 self.command = None # set in case of error on the first line |
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274 self.request_version = version = self.default_request_version |
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275 self.close_connection = 1 |
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276 requestline = str(self.raw_requestline, 'iso-8859-1') |
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277 requestline = requestline.rstrip('\r\n') |
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278 self.requestline = requestline |
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279 words = requestline.split() |
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280 if len(words) == 3: |
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281 command, path, version = words |
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282 if version[:5] != 'HTTP/': |
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283 self.send_error(400, "Bad request version (%r)" % version) |
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284 return False |
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285 try: |
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286 base_version_number = version.split('/', 1)[1] |
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287 version_number = base_version_number.split(".") |
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288 # RFC 2145 section 3.1 says there can be only one "." and |
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289 # - major and minor numbers MUST be treated as |
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290 # separate integers; |
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291 # - HTTP/2.4 is a lower version than HTTP/2.13, which in |
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292 # turn is lower than HTTP/12.3; |
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293 # - Leading zeros MUST be ignored by recipients. |
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294 if len(version_number) != 2: |
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295 raise ValueError |
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296 version_number = int(version_number[0]), int(version_number[1]) |
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297 except (ValueError, IndexError): |
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298 self.send_error(400, "Bad request version (%r)" % version) |
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299 return False |
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300 if version_number >= (1, 1) and self.protocol_version >= "HTTP/1.1": |
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301 self.close_connection = 0 |
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302 if version_number >= (2, 0): |
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303 self.send_error(505, |
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304 "Invalid HTTP Version (%s)" % base_version_number) |
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305 return False |
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306 elif len(words) == 2: |
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307 command, path = words |
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308 self.close_connection = 1 |
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309 if command != 'GET': |
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310 self.send_error(400, |
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311 "Bad HTTP/0.9 request type (%r)" % command) |
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312 return False |
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313 elif not words: |
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314 return False |
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315 else: |
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316 self.send_error(400, "Bad request syntax (%r)" % requestline) |
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317 return False |
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318 self.command, self.path, self.request_version = command, path, version |
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319 |
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320 # Examine the headers and look for a Connection directive. |
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321 try: |
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322 self.headers = http.client.parse_headers(self.rfile, |
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323 _class=self.MessageClass) |
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324 except http.client.LineTooLong: |
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325 self.send_error(400, "Line too long") |
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326 return False |
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327 |
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328 conntype = self.headers.get('Connection', "") |
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329 if conntype.lower() == 'close': |
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330 self.close_connection = 1 |
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331 elif (conntype.lower() == 'keep-alive' and |
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332 self.protocol_version >= "HTTP/1.1"): |
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333 self.close_connection = 0 |
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334 # Examine the headers and look for an Expect directive |
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335 expect = self.headers.get('Expect', "") |
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336 if (expect.lower() == "100-continue" and |
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337 self.protocol_version >= "HTTP/1.1" and |
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338 self.request_version >= "HTTP/1.1"): |
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339 if not self.handle_expect_100(): |
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340 return False |
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341 return True |
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342 |
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343 def handle_expect_100(self): |
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344 """Decide what to do with an "Expect: 100-continue" header. |
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345 |
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346 If the client is expecting a 100 Continue response, we must |
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347 respond with either a 100 Continue or a final response before |
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348 waiting for the request body. The default is to always respond |
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349 with a 100 Continue. You can behave differently (for example, |
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350 reject unauthorized requests) by overriding this method. |
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351 |
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352 This method should either return True (possibly after sending |
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353 a 100 Continue response) or send an error response and return |
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354 False. |
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355 |
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356 """ |
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357 self.send_response_only(100) |
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358 self.flush_headers() |
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359 return True |
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360 |
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361 def handle_one_request(self): |
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362 """Handle a single HTTP request. |
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363 |
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364 You normally don't need to override this method; see the class |
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365 __doc__ string for information on how to handle specific HTTP |
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366 commands such as GET and POST. |
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367 |
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368 """ |
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369 try: |
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370 self.raw_requestline = self.rfile.readline(65537) |
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371 if len(self.raw_requestline) > 65536: |
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372 self.requestline = '' |
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373 self.request_version = '' |
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374 self.command = '' |
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375 self.send_error(414) |
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376 return |
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377 if not self.raw_requestline: |
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378 self.close_connection = 1 |
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379 return |
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380 if not self.parse_request(): |
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381 # An error code has been sent, just exit |
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382 return |
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383 mname = 'do_' + self.command |
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384 if not hasattr(self, mname): |
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385 self.send_error(501, "Unsupported method (%r)" % self.command) |
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386 return |
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387 method = getattr(self, mname) |
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388 method() |
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389 self.wfile.flush() #actually send the response if not already done. |
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390 except socket.timeout as e: |
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391 #a read or a write timed out. Discard this connection |
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392 self.log_error("Request timed out: %r", e) |
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393 self.close_connection = 1 |
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394 return |
| 2887 | 395 |
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396 def handle(self): |
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397 """Handle multiple requests if necessary.""" |
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398 self.close_connection = 1 |
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399 |
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400 self.handle_one_request() |
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401 while not self.close_connection: |
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402 self.handle_one_request() |
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403 |
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404 def send_error(self, code, message=None, explain=None): |
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405 """Send and log an error reply. |
| 2887 | 406 |
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407 Arguments are |
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408 * code: an HTTP error code |
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409 3 digits |
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410 * message: a simple optional 1 line reason phrase. |
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411 *( HTAB / SP / VCHAR / %x80-FF ) |
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412 defaults to short entry matching the response code |
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413 * explain: a detailed message defaults to the long entry |
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414 matching the response code. |
| 2887 | 415 |
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416 This sends an error response (so it must be called before any |
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417 output has been generated), logs the error, and finally sends |
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418 a piece of HTML explaining the error to the user. |
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420 """ |
| 2887 | 421 |
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422 try: |
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423 shortmsg, longmsg = self.responses[code] |
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424 except KeyError: |
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425 shortmsg, longmsg = '???', '???' |
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426 if message is None: |
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427 message = shortmsg |
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428 if explain is None: |
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429 explain = longmsg |
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430 self.log_error("code %d, message %s", code, message) |
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431 # using _quote_html to prevent Cross Site Scripting attacks (see bug #1100201) |
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432 content = (self.error_message_format % |
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433 {'code': code, 'message': _quote_html(message), 'explain': _quote_html(explain)}) |
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434 body = content.encode('UTF-8', 'replace') |
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435 self.send_response(code, message) |
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436 self.send_header("Content-Type", self.error_content_type) |
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437 self.send_header('Connection', 'close') |
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438 self.send_header('Content-Length', int(len(body))) |
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439 self.end_headers() |
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440 if self.command != 'HEAD' and code >= 200 and code not in (204, 304): |
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441 self.wfile.write(body) |
| 2887 | 442 |
| 443 def send_response(self, code, message=None): | |
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444 """Add the response header to the headers buffer and log the |
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445 response code. |
| 2887 | 446 |
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447 Also send two standard headers with the server software |
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448 version and the current date. |
| 2887 | 449 |
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450 """ |
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451 self.log_request(code) |
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452 self.send_response_only(code, message) |
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453 self.send_header('Server', self.version_string()) |
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454 self.send_header('Date', self.date_time_string()) |
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455 |
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456 def send_response_only(self, code, message=None): |
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457 """Send the response header only.""" |
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458 if message is None: |
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459 if code in self.responses: |
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460 message = self.responses[code][0] |
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461 else: |
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462 message = '' |
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463 if self.request_version != 'HTTP/0.9': |
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464 if not hasattr(self, '_headers_buffer'): |
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465 self._headers_buffer = [] |
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466 self._headers_buffer.append(("%s %d %s\r\n" % |
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467 (self.protocol_version, code, message)).encode( |
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468 'latin-1', 'strict')) |
| 2887 | 469 |
| 470 def send_header(self, keyword, value): | |
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471 """Send a MIME header to the headers buffer.""" |
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472 if self.request_version != 'HTTP/0.9': |
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473 if not hasattr(self, '_headers_buffer'): |
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474 self._headers_buffer = [] |
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475 self._headers_buffer.append( |
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476 ("%s: %s\r\n" % (keyword, value)).encode('latin-1', 'strict')) |
| 2887 | 477 |
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478 if keyword.lower() == 'connection': |
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479 if value.lower() == 'close': |
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480 self.close_connection = 1 |
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481 elif value.lower() == 'keep-alive': |
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482 self.close_connection = 0 |
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483 |
| 2887 | 484 def end_headers(self): |
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485 """Send the blank line ending the MIME headers.""" |
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486 if self.request_version != 'HTTP/0.9': |
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487 self._headers_buffer.append(b"\r\n") |
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488 self.flush_headers() |
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489 |
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490 def flush_headers(self): |
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491 if hasattr(self, '_headers_buffer'): |
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492 self.wfile.write(b"".join(self._headers_buffer)) |
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493 self._headers_buffer = [] |
| 2887 | 494 |
| 495 def log_request(self, code='-', size='-'): | |
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496 """Log an accepted request. |
| 2887 | 497 |
| 36879 | 498 This is called by send_response(). |
| 2887 | 499 |
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500 """ |
| 2887 | 501 |
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502 self.log_message('"%s" %s %s', |
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503 self.requestline, str(code), str(size)) |
| 2887 | 504 |
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505 def log_error(self, format, *args): |
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506 """Log an error. |
| 2887 | 507 |
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508 This is called when a request cannot be fulfilled. By |
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509 default it passes the message on to log_message(). |
| 2887 | 510 |
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511 Arguments are the same as for log_message(). |
| 2887 | 512 |
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513 XXX This should go to the separate error log. |
| 2887 | 514 |
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515 """ |
| 2887 | 516 |
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517 self.log_message(format, *args) |
| 2887 | 518 |
| 519 def log_message(self, format, *args): | |
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520 """Log an arbitrary message. |
| 2887 | 521 |
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522 This is used by all other logging functions. Override |
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523 it if you have specific logging wishes. |
| 2887 | 524 |
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525 The first argument, FORMAT, is a format string for the |
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526 message to be logged. If the format string contains |
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527 any % escapes requiring parameters, they should be |
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528 specified as subsequent arguments (it's just like |
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529 printf!). |
| 2887 | 530 |
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531 The client ip and current date/time are prefixed to |
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532 every message. |
| 2887 | 533 |
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534 """ |
| 2887 | 535 |
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536 sys.stderr.write("%s - - [%s] %s\n" % |
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537 (self.address_string(), |
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538 self.log_date_time_string(), |
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539 format%args)) |
| 2887 | 540 |
| 541 def version_string(self): | |
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542 """Return the server software version string.""" |
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543 return self.server_version + ' ' + self.sys_version |
| 2887 | 544 |
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545 def date_time_string(self, timestamp=None): |
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546 """Return the current date and time formatted for a message header.""" |
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547 if timestamp is None: |
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548 timestamp = time.time() |
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549 year, month, day, hh, mm, ss, wd, y, z = time.gmtime(timestamp) |
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550 s = "%s, %02d %3s %4d %02d:%02d:%02d GMT" % ( |
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551 self.weekdayname[wd], |
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552 day, self.monthname[month], year, |
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553 hh, mm, ss) |
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554 return s |
| 2887 | 555 |
| 556 def log_date_time_string(self): | |
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557 """Return the current time formatted for logging.""" |
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558 now = time.time() |
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559 year, month, day, hh, mm, ss, x, y, z = time.localtime(now) |
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560 s = "%02d/%3s/%04d %02d:%02d:%02d" % ( |
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561 day, self.monthname[month], year, hh, mm, ss) |
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562 return s |
| 2887 | 563 |
| 564 weekdayname = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] | |
| 565 | |
| 566 monthname = [None, | |
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567 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', |
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568 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] |
| 2887 | 569 |
| 570 def address_string(self): | |
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571 """Return the client address.""" |
| 2887 | 572 |
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573 return self.client_address[0] |
| 2887 | 574 |
| 575 # Essentially static class variables | |
| 576 | |
| 577 # The version of the HTTP protocol we support. | |
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578 # Set this to HTTP/1.1 to enable automatic keepalive |
| 2887 | 579 protocol_version = "HTTP/1.0" |
| 580 | |
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581 # MessageClass used to parse headers |
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582 MessageClass = http.client.HTTPMessage |
| 2887 | 583 |
| 584 # Table mapping response codes to messages; entries have the | |
| 585 # form {code: (shortmessage, longmessage)}. | |
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586 # See RFC 2616 and 6585. |
| 2887 | 587 responses = { |
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588 100: ('Continue', 'Request received, please continue'), |
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589 101: ('Switching Protocols', |
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590 'Switching to new protocol; obey Upgrade header'), |
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591 |
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592 200: ('OK', 'Request fulfilled, document follows'), |
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593 201: ('Created', 'Document created, URL follows'), |
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594 202: ('Accepted', |
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595 'Request accepted, processing continues off-line'), |
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596 203: ('Non-Authoritative Information', 'Request fulfilled from cache'), |
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597 204: ('No Content', 'Request fulfilled, nothing follows'), |
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598 205: ('Reset Content', 'Clear input form for further input.'), |
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599 206: ('Partial Content', 'Partial content follows.'), |
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600 |
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601 300: ('Multiple Choices', |
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602 'Object has several resources -- see URI list'), |
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603 301: ('Moved Permanently', 'Object moved permanently -- see URI list'), |
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604 302: ('Found', 'Object moved temporarily -- see URI list'), |
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605 303: ('See Other', 'Object moved -- see Method and URL list'), |
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606 304: ('Not Modified', |
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607 'Document has not changed since given time'), |
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608 305: ('Use Proxy', |
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609 'You must use proxy specified in Location to access this ' |
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610 'resource.'), |
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611 307: ('Temporary Redirect', |
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612 'Object moved temporarily -- see URI list'), |
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613 |
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614 400: ('Bad Request', |
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615 'Bad request syntax or unsupported method'), |
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616 401: ('Unauthorized', |
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617 'No permission -- see authorization schemes'), |
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618 402: ('Payment Required', |
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619 'No payment -- see charging schemes'), |
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620 403: ('Forbidden', |
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621 'Request forbidden -- authorization will not help'), |
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622 404: ('Not Found', 'Nothing matches the given URI'), |
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623 405: ('Method Not Allowed', |
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624 'Specified method is invalid for this resource.'), |
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625 406: ('Not Acceptable', 'URI not available in preferred format.'), |
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626 407: ('Proxy Authentication Required', 'You must authenticate with ' |
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627 'this proxy before proceeding.'), |
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628 408: ('Request Timeout', 'Request timed out; try again later.'), |
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629 409: ('Conflict', 'Request conflict.'), |
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630 410: ('Gone', |
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631 'URI no longer exists and has been permanently removed.'), |
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632 411: ('Length Required', 'Client must specify Content-Length.'), |
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633 412: ('Precondition Failed', 'Precondition in headers is false.'), |
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634 413: ('Request Entity Too Large', 'Entity is too large.'), |
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635 414: ('Request-URI Too Long', 'URI is too long.'), |
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636 415: ('Unsupported Media Type', 'Entity body in unsupported format.'), |
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637 416: ('Requested Range Not Satisfiable', |
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638 'Cannot satisfy request range.'), |
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639 417: ('Expectation Failed', |
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640 'Expect condition could not be satisfied.'), |
|
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#14809: Add HTTP status codes from RFC 6585 to http.server and http.client
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|
641 428: ('Precondition Required', |
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diff
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|
642 'The origin server requires the request to be conditional.'), |
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|
643 429: ('Too Many Requests', 'The user has sent too many requests ' |
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644 'in a given amount of time ("rate limiting").'), |
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|
645 431: ('Request Header Fields Too Large', 'The server is unwilling to ' |
|
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parents:
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646 'process the request because its header fields are too large.'), |
|
15860
083a5c75ed90
Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
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|
647 |
|
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648 500: ('Internal Server Error', 'Server got itself in trouble'), |
|
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Patch #430706: Persistent connections in BaseHTTPServer.
Martin v. Löwis <martin@v.loewis.de>
parents:
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649 501: ('Not Implemented', |
|
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Guido van Rossum <guido@python.org>
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650 'Server does not support this operation'), |
|
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Martin v. Löwis <martin@v.loewis.de>
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651 502: ('Bad Gateway', 'Invalid responses from another server/proxy.'), |
|
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Georg Brandl <georg@python.org>
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652 503: ('Service Unavailable', |
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653 'The server cannot process the request due to a high load'), |
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654 504: ('Gateway Timeout', |
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655 'The gateway server did not receive a timely response'), |
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656 505: ('HTTP Version Not Supported', 'Cannot fulfill request.'), |
|
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parents:
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657 511: ('Network Authentication Required', |
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658 'The client needs to authenticate to gain network access.'), |
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parents:
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659 } |
| 2887 | 660 |
| 661 | |
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662 class SimpleHTTPRequestHandler(BaseHTTPRequestHandler): |
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663 |
|
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664 """Simple HTTP request handler with GET and HEAD commands. |
|
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665 |
|
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|
666 This serves files from the current directory and any of its |
|
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667 subdirectories. The MIME type for files is determined by |
|
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668 calling the .guess_type() method. |
|
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669 |
|
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670 The GET and HEAD requests are identical except that the HEAD |
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671 request omits the actual contents of the file. |
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672 |
|
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673 """ |
|
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|
674 |
|
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675 server_version = "SimpleHTTP/" + __version__ |
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676 |
|
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677 def do_GET(self): |
|
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678 """Serve a GET request.""" |
|
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679 f = self.send_head() |
|
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680 if f: |
|
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681 self.copyfile(f, self.wfile) |
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682 f.close() |
|
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|
683 |
|
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684 def do_HEAD(self): |
|
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685 """Serve a HEAD request.""" |
|
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|
686 f = self.send_head() |
|
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687 if f: |
|
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688 f.close() |
|
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diff
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|
689 |
|
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Georg Brandl <georg@python.org>
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|
690 def send_head(self): |
|
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parents:
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691 """Common code for GET and HEAD commands. |
|
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692 |
|
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Georg Brandl <georg@python.org>
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|
693 This sends the response code and MIME headers. |
|
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|
694 |
|
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Georg Brandl <georg@python.org>
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diff
changeset
|
695 Return value is either a file object (which has to be copied |
|
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parents:
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|
696 to the outputfile by the caller unless the command was HEAD, |
|
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parents:
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|
697 and must be closed by the caller under all circumstances), or |
|
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698 None, in which case the caller has nothing further to do. |
|
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Create http package. #2883.
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|
699 |
|
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Georg Brandl <georg@python.org>
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|
700 """ |
|
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parents:
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diff
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|
701 path = self.translate_path(self.path) |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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|
702 f = None |
|
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Georg Brandl <georg@python.org>
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changeset
|
703 if os.path.isdir(path): |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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|
704 if not self.path.endswith('/'): |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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changeset
|
705 # redirect browser - doing basically what apache does |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
706 self.send_response(301) |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
707 self.send_header("Location", self.path + "/") |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
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|
708 self.end_headers() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
709 return None |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
710 for index in "index.html", "index.htm": |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
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|
711 index = os.path.join(path, index) |
|
e1fcc3881cb6
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parents:
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diff
changeset
|
712 if os.path.exists(index): |
|
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
713 path = index |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
714 break |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
715 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
716 return self.list_directory(path) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
717 ctype = self.guess_type(path) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
718 try: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
719 f = open(path, 'rb') |
|
81039
7d69d04522e3
Replace IOError with OSError (#16715)
Andrew Svetlov <andrew.svetlov@gmail.com>
parents:
80932
diff
changeset
|
720 except OSError: |
|
47318
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
721 self.send_error(404, "File not found") |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
722 return None |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
723 self.send_response(200) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
724 self.send_header("Content-type", ctype) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
725 fs = os.fstat(f.fileno()) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
726 self.send_header("Content-Length", str(fs[6])) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
727 self.send_header("Last-Modified", self.date_time_string(fs.st_mtime)) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
728 self.end_headers() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
729 return f |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
730 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
731 def list_directory(self, path): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
732 """Helper to produce a directory listing (absent index.html). |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
733 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
734 Return value is either a file object, or None (indicating an |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
735 error). In either case, the headers are sent, making the |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
736 interface the same as for send_head(). |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
737 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
738 """ |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
739 try: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
740 list = os.listdir(path) |
|
80932
47f98a550d42
Issue #16706: get rid of os.error
Andrew Svetlov <andrew.svetlov@gmail.com>
parents:
79664
diff
changeset
|
741 except OSError: |
|
47318
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
742 self.send_error(404, "No permission to list directory") |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
743 return None |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
744 list.sort(key=lambda a: a.lower()) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
745 r = [] |
|
65362
5633af590057
#2830: add html.escape() helper and move cgi.escape() uses in the standard library to it. It defaults to quote=True and also escapes single quotes, which makes casual use safer. The cgi.escape() interface is not touched, but emits a (silent) PendingDeprecationWarning.
Georg Brandl <georg@python.org>
parents:
65075
diff
changeset
|
746 displaypath = html.escape(urllib.parse.unquote(self.path)) |
|
73303
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
747 enc = sys.getfilesystemencoding() |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
748 title = 'Directory listing for %s' % displaypath |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
749 r.append('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" ' |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
750 '"http://www.w3.org/TR/html4/strict.dtd">') |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
751 r.append('<html>\n<head>') |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
752 r.append('<meta http-equiv="Content-Type" ' |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
753 'content="text/html; charset=%s">' % enc) |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
754 r.append('<title>%s</title>\n</head>' % title) |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
755 r.append('<body>\n<h1>%s</h1>' % title) |
|
10823e7be085
#13295: http.server now produces valid HTML 4.01 strict.
Ezio Melotti <ezio.melotti@gmail.com>
parents:
70908
diff
changeset
|
756 r.append('<hr>\n<ul>') |
|
47318
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
757 for name in list: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
758 fullname = os.path.join(path, name) |
|
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759 displayname = linkname = name |
|
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|
760 # Append / for directories or @ for symbolic links |
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761 if os.path.isdir(fullname): |
|
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762 displayname = name + "/" |
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763 linkname = name + "/" |
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764 if os.path.islink(fullname): |
|
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765 displayname = name + "@" |
|
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766 # Note: a link to a directory displays with @ and links with / |
|
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|
767 r.append('<li><a href="%s">%s</a></li>' |
|
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#2830: add html.escape() helper and move cgi.escape() uses in the standard library to it. It defaults to quote=True and also escapes single quotes, which makes casual use safer. The cgi.escape() interface is not touched, but emits a (silent) PendingDeprecationWarning.
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768 % (urllib.parse.quote(linkname), html.escape(displayname))) |
|
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|
769 r.append('</ul>\n<hr>\n</body>\n</html>\n') |
|
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770 encoded = '\n'.join(r).encode(enc) |
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771 f = io.BytesIO() |
|
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|
772 f.write(encoded) |
|
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|
773 f.seek(0) |
|
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|
774 self.send_response(200) |
|
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775 self.send_header("Content-type", "text/html; charset=%s" % enc) |
|
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776 self.send_header("Content-Length", str(len(encoded))) |
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777 self.end_headers() |
|
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|
778 return f |
|
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|
779 |
|
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|
780 def translate_path(self, path): |
|
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781 """Translate a /-separated PATH to the local filename syntax. |
|
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782 |
|
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|
783 Components that mean special things to the local file system |
|
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784 (e.g. drive or directory names) are ignored. (XXX They should |
|
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|
785 probably be diagnosed.) |
|
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|
786 |
|
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787 """ |
|
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788 # abandon query parameters |
|
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789 path = path.split('?',1)[0] |
|
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|
790 path = path.split('#',1)[0] |
|
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|
791 # Don't forget explicit trailing slash when normalizing. Issue17324 |
|
85878
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Minor code improvement. Review comment by Eric V. Smith
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|
792 trailing_slash = path.rstrip().endswith('/') |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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|
793 path = posixpath.normpath(urllib.parse.unquote(path)) |
|
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794 words = path.split('/') |
|
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795 words = filter(None, words) |
|
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796 path = os.getcwd() |
|
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797 for word in words: |
|
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798 drive, word = os.path.splitdrive(word) |
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799 head, word = os.path.split(word) |
|
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800 if word in (os.curdir, os.pardir): continue |
|
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801 path = os.path.join(path, word) |
|
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|
802 if trailing_slash: |
|
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|
803 path += '/' |
|
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|
804 return path |
|
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|
805 |
|
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|
806 def copyfile(self, source, outputfile): |
|
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|
807 """Copy all data between two file objects. |
|
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|
808 |
|
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|
809 The SOURCE argument is a file object open for reading |
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|
810 (or anything with a read() method) and the DESTINATION |
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|
811 argument is a file object open for writing (or |
|
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|
812 anything with a write() method). |
|
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|
813 |
|
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|
814 The only reason for overriding this would be to change |
|
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|
815 the block size or perhaps to replace newlines by CRLF |
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|
816 -- note however that this the default server uses this |
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817 to copy binary data as well. |
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|
818 |
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819 """ |
|
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820 shutil.copyfileobj(source, outputfile) |
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|
821 |
|
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|
822 def guess_type(self, path): |
|
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|
823 """Guess the type of a file. |
|
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|
824 |
|
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|
825 Argument is a PATH (a filename). |
|
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826 |
|
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|
827 Return value is a string of the form type/subtype, |
|
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|
828 usable for a MIME Content-type header. |
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|
829 |
|
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|
830 The default implementation looks the file's extension |
|
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|
831 up in the table self.extensions_map, using application/octet-stream |
|
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832 as a default; however it would be permissible (if |
|
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833 slow) to look inside the data to make a better guess. |
|
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|
834 |
|
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|
835 """ |
|
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|
836 |
|
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|
837 base, ext = posixpath.splitext(path) |
|
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|
838 if ext in self.extensions_map: |
|
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|
839 return self.extensions_map[ext] |
|
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840 ext = ext.lower() |
|
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|
841 if ext in self.extensions_map: |
|
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|
842 return self.extensions_map[ext] |
|
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|
843 else: |
|
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|
844 return self.extensions_map[''] |
|
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|
845 |
|
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|
846 if not mimetypes.inited: |
|
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|
847 mimetypes.init() # try to read system mime.types |
|
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848 extensions_map = mimetypes.types_map.copy() |
|
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|
849 extensions_map.update({ |
|
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|
850 '': 'application/octet-stream', # Default |
|
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|
851 '.py': 'text/plain', |
|
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|
852 '.c': 'text/plain', |
|
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|
853 '.h': 'text/plain', |
|
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|
854 }) |
|
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diff
changeset
|
855 |
|
e1fcc3881cb6
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diff
changeset
|
856 |
|
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changeset
|
857 # Utilities for CGIHTTPRequestHandler |
|
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Create http package. #2883.
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|
858 |
|
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3.2 - Issue 10484 - Incorporate improvements to CGI module - Suggested by Glenn Linderman. Refactor code and tests
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859 def _url_collapse_path(path): |
|
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860 """ |
|
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861 Given a URL path, remove extra '/'s and '.' path elements and collapse |
|
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|
862 any '..' references and returns a colllapsed path. |
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863 |
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864 Implements something akin to RFC-2396 5.2 step 6 to parse relative paths. |
|
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865 The utility of this function is limited to is_cgi method and helps |
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866 preventing some security attacks. |
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867 |
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868 Returns: A tuple of (head, tail) where tail is everything after the final / |
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869 and head is everything before it. Head will always start with a '/' and, |
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870 if it contains anything else, never have a trailing '/'. |
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871 |
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|
872 Raises: IndexError if too many '..' occur within the path. |
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873 |
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874 """ |
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875 # Similar to os.path.split(os.path.normpath(path)) but specific to URL |
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|
876 # path semantics rather than local operating system semantics. |
|
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|
877 path_parts = path.split('/') |
|
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|
878 head_parts = [] |
|
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|
879 for part in path_parts[:-1]: |
|
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|
880 if part == '..': |
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|
881 head_parts.pop() # IndexError if more '..' than prior parts |
|
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|
882 elif part and part != '.': |
|
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|
883 head_parts.append( part ) |
|
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|
884 if path_parts: |
|
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|
885 tail_part = path_parts.pop() |
|
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|
886 if tail_part: |
|
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|
887 if tail_part == '..': |
|
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|
888 head_parts.pop() |
|
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|
889 tail_part = '' |
|
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|
890 elif tail_part == '.': |
|
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|
891 tail_part = '' |
|
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|
892 else: |
|
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|
893 tail_part = '' |
|
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|
894 |
|
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|
895 splitpath = ('/' + '/'.join(head_parts), tail_part) |
|
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|
896 collapsed_path = "/".join(splitpath) |
|
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|
897 |
|
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|
898 return collapsed_path |
|
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|
899 |
|
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900 |
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901 |
|
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902 nobody = None |
|
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903 |
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|
904 def nobody_uid(): |
|
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|
905 """Internal routine to get nobody's uid""" |
|
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|
906 global nobody |
|
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|
907 if nobody: |
|
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|
908 return nobody |
|
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|
909 try: |
|
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|
910 import pwd |
|
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|
911 except ImportError: |
|
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|
912 return -1 |
|
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|
913 try: |
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914 nobody = pwd.getpwnam('nobody')[2] |
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915 except KeyError: |
|
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|
916 nobody = 1 + max(x[2] for x in pwd.getpwall()) |
|
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917 return nobody |
|
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|
918 |
|
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|
919 |
|
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|
920 def executable(path): |
|
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|
921 """Test for executable file.""" |
|
70908
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|
922 return os.access(path, os.X_OK) |
|
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923 |
|
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924 |
|
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|
925 class CGIHTTPRequestHandler(SimpleHTTPRequestHandler): |
|
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|
926 |
|
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|
927 """Complete HTTP server with GET, HEAD and POST commands. |
|
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|
928 |
|
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|
929 GET and HEAD also support running CGI scripts. |
|
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|
930 |
|
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|
931 The POST command is *only* implemented for CGI scripts. |
|
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|
932 |
|
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|
933 """ |
|
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|
934 |
|
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|
935 # Determine platform specifics |
|
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|
936 have_fork = hasattr(os, 'fork') |
|
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937 |
|
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|
938 # Make rfile unbuffered -- we need to read one line and then pass |
|
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939 # the rest to a subprocess, so we can't use buffered input. |
|
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|
940 rbufsize = 0 |
|
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|
941 |
|
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|
942 def do_POST(self): |
|
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Create http package. #2883.
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|
943 """Serve a POST request. |
|
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|
944 |
|
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|
945 This is only implemented for CGI scripts. |
|
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|
946 |
|
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|
947 """ |
|
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|
948 |
|
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|
949 if self.is_cgi(): |
|
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Create http package. #2883.
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|
950 self.run_cgi() |
|
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Create http package. #2883.
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|
951 else: |
|
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Create http package. #2883.
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|
952 self.send_error(501, "Can only POST to CGI scripts") |
|
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|
953 |
|
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diff
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|
954 def send_head(self): |
|
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|
955 """Version of send_head that support CGI scripts""" |
|
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|
956 if self.is_cgi(): |
|
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|
957 return self.run_cgi() |
|
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|
958 else: |
|
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|
959 return SimpleHTTPRequestHandler.send_head(self) |
|
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|
960 |
|
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changeset
|
961 def is_cgi(self): |
|
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|
962 """Test whether self.path corresponds to a CGI script. |
|
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|
963 |
|
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|
964 Returns True and updates the cgi_info attribute to the tuple |
|
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|
965 (dir, rest) if self.path requires running a CGI script. |
|
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|
966 Returns False otherwise. |
|
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|
967 |
| 53921 | 968 If any exception is raised, the caller should assume that |
| 969 self.path was rejected as invalid and act accordingly. | |
| 970 | |
|
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|
971 The default implementation tests whether the normalized url |
|
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|
972 path begins with one of the strings in self.cgi_directories |
|
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|
973 (and the next character is a '/' or the end of the string). |
|
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|
974 |
|
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|
975 """ |
|
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|
976 collapsed_path = _url_collapse_path(self.path) |
|
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|
977 dir_sep = collapsed_path.find('/', 1) |
|
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|
978 head, tail = collapsed_path[:dir_sep], collapsed_path[dir_sep+1:] |
|
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|
979 if head in self.cgi_directories: |
|
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|
980 self.cgi_info = head, tail |
|
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|
981 return True |
|
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|
982 return False |
|
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|
983 |
|
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|
984 |
|
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|
985 cgi_directories = ['/cgi-bin', '/htbin'] |
|
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|
986 |
|
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|
987 def is_executable(self, path): |
|
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|
988 """Test whether argument path is an executable file.""" |
|
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|
989 return executable(path) |
|
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|
990 |
|
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|
991 def is_python(self, path): |
|
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|
992 """Test whether argument path is a Python script.""" |
|
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|
993 head, tail = os.path.splitext(path) |
|
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|
994 return tail.lower() in (".py", ".pyw") |
|
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Georg Brandl <georg@python.org>
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|
995 |
|
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Georg Brandl <georg@python.org>
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|
996 def run_cgi(self): |
|
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Georg Brandl <georg@python.org>
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|
997 """Execute a CGI script.""" |
|
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|
998 dir, rest = self.cgi_info |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
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|
999 |
|
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691b3df5036b
Transplant of rev 544b654d000c: directory traversal attack in CGIHttpRequestHandler.
Georg Brandl <georg@python.org>
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diff
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|
1000 i = rest.find('/') |
|
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|
1001 while i >= 0: |
|
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Georg Brandl <georg@python.org>
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diff
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|
1002 nextdir = rest[:i] |
|
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Georg Brandl <georg@python.org>
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diff
changeset
|
1003 nextrest = rest[i+1:] |
|
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|
1004 |
|
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diff
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|
1005 scriptdir = self.translate_path(nextdir) |
|
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Georg Brandl <georg@python.org>
parents:
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diff
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|
1006 if os.path.isdir(scriptdir): |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1007 dir, rest = nextdir, nextrest |
|
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Georg Brandl <georg@python.org>
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|
1008 i = rest.find('/') |
|
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|
1009 else: |
|
e1fcc3881cb6
Create http package. #2883.
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diff
changeset
|
1010 break |
|
e1fcc3881cb6
Create http package. #2883.
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diff
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|
1011 |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
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|
1012 # find an explicit query string, if present. |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
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|
1013 i = rest.rfind('?') |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
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|
1014 if i >= 0: |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1015 rest, query = rest[:i], rest[i+1:] |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
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|
1016 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
1017 query = '' |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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changeset
|
1018 |
|
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1019 # dissect the part after the directory name into a script name & |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
1020 # a possible additional path, to be stored in PATH_INFO. |
|
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Georg Brandl <georg@python.org>
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diff
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|
1021 i = rest.find('/') |
|
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Georg Brandl <georg@python.org>
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diff
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|
1022 if i >= 0: |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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changeset
|
1023 script, rest = rest[:i], rest[i:] |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
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|
1024 else: |
|
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Georg Brandl <georg@python.org>
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diff
changeset
|
1025 script, rest = rest, '' |
|
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Create http package. #2883.
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diff
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|
1026 |
|
e1fcc3881cb6
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parents:
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|
1027 scriptname = dir + '/' + script |
|
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|
1028 scriptfile = self.translate_path(scriptname) |
|
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diff
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|
1029 if not os.path.exists(scriptfile): |
|
e1fcc3881cb6
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diff
changeset
|
1030 self.send_error(404, "No such CGI script (%r)" % scriptname) |
|
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diff
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|
1031 return |
|
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diff
changeset
|
1032 if not os.path.isfile(scriptfile): |
|
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1033 self.send_error(403, "CGI script is not a plain file (%r)" % |
|
e1fcc3881cb6
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diff
changeset
|
1034 scriptname) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
1035 return |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1036 ispy = self.is_python(scriptname) |
|
70908
ecef74419d55
Close #12289: Fix "is executable?" test in the CGI server
Victor Stinner <victor.stinner@haypocalc.com>
parents:
69981
diff
changeset
|
1037 if self.have_fork or not ispy: |
|
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diff
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|
1038 if not self.is_executable(scriptfile): |
|
e1fcc3881cb6
Create http package. #2883.
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diff
changeset
|
1039 self.send_error(403, "CGI script is not executable (%r)" % |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1040 scriptname) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1041 return |
|
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diff
changeset
|
1042 |
|
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Georg Brandl <georg@python.org>
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diff
changeset
|
1043 # Reference: http://hoohoo.ncsa.uiuc.edu/cgi/env.html |
|
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|
1044 # XXX Much of the following could be prepared ahead of time! |
|
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Merged revisions 85202 via svnmerge from
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parents:
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diff
changeset
|
1045 env = copy.deepcopy(os.environ) |
|
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diff
changeset
|
1046 env['SERVER_SOFTWARE'] = self.version_string() |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1047 env['SERVER_NAME'] = self.server.server_name |
|
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Georg Brandl <georg@python.org>
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diff
changeset
|
1048 env['GATEWAY_INTERFACE'] = 'CGI/1.1' |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1049 env['SERVER_PROTOCOL'] = self.protocol_version |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1050 env['SERVER_PORT'] = str(self.server.server_port) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1051 env['REQUEST_METHOD'] = self.command |
|
48334
5a416a6417d3
Make a new urllib package .
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
47657
diff
changeset
|
1052 uqrest = urllib.parse.unquote(rest) |
|
47318
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Create http package. #2883.
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diff
changeset
|
1053 env['PATH_INFO'] = uqrest |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1054 env['PATH_TRANSLATED'] = self.translate_path(uqrest) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1055 env['SCRIPT_NAME'] = scriptname |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1056 if query: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1057 env['QUERY_STRING'] = query |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
1058 env['REMOTE_ADDR'] = self.client_address[0] |
|
47635
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Barry Warsaw <barry@python.org>
parents:
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diff
changeset
|
1059 authorization = self.headers.get("authorization") |
|
47318
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Create http package. #2883.
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parents:
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diff
changeset
|
1060 if authorization: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1061 authorization = authorization.split() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1062 if len(authorization) == 2: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1063 import base64, binascii |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
1064 env['AUTH_TYPE'] = authorization[0] |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1065 if authorization[0].lower() == "basic": |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1066 try: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1067 authorization = authorization[1].encode('ascii') |
|
54568
031b963f2bc2
More codestring -> codebytes.
Georg Brandl <georg@python.org>
parents:
53921
diff
changeset
|
1068 authorization = base64.decodebytes(authorization).\ |
|
47318
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Create http package. #2883.
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parents:
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diff
changeset
|
1069 decode('ascii') |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1070 except (binascii.Error, UnicodeError): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1071 pass |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1072 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1073 authorization = authorization.split(':') |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1074 if len(authorization) == 2: |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1075 env['REMOTE_USER'] = authorization[0] |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1076 # XXX REMOTE_IDENT |
|
47635
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Patch for issue 2848, mostly by Humberto Diogenes, with a couple of
Barry Warsaw <barry@python.org>
parents:
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diff
changeset
|
1077 if self.headers.get('content-type') is None: |
|
f31e32a2013c
Patch for issue 2848, mostly by Humberto Diogenes, with a couple of
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parents:
47318
diff
changeset
|
1078 env['CONTENT_TYPE'] = self.headers.get_content_type() |
|
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diff
changeset
|
1079 else: |
|
47635
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Patch for issue 2848, mostly by Humberto Diogenes, with a couple of
Barry Warsaw <barry@python.org>
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diff
changeset
|
1080 env['CONTENT_TYPE'] = self.headers['content-type'] |
|
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parents:
47318
diff
changeset
|
1081 length = self.headers.get('content-length') |
|
47318
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1082 if length: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1083 env['CONTENT_LENGTH'] = length |
|
47635
f31e32a2013c
Patch for issue 2848, mostly by Humberto Diogenes, with a couple of
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parents:
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diff
changeset
|
1084 referer = self.headers.get('referer') |
|
47318
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Create http package. #2883.
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parents:
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diff
changeset
|
1085 if referer: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1086 env['HTTP_REFERER'] = referer |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1087 accept = [] |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1088 for line in self.headers.getallmatchingheaders('accept'): |
|
e1fcc3881cb6
Create http package. #2883.
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diff
changeset
|
1089 if line[:1] in "\t\n\r ": |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1090 accept.append(line.strip()) |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1091 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1092 accept = accept + line[7:].split(',') |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1093 env['HTTP_ACCEPT'] = ','.join(accept) |
|
47635
f31e32a2013c
Patch for issue 2848, mostly by Humberto Diogenes, with a couple of
Barry Warsaw <barry@python.org>
parents:
47318
diff
changeset
|
1094 ua = self.headers.get('user-agent') |
|
47318
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Create http package. #2883.
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diff
changeset
|
1095 if ua: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1096 env['HTTP_USER_AGENT'] = ua |
|
47635
f31e32a2013c
Patch for issue 2848, mostly by Humberto Diogenes, with a couple of
Barry Warsaw <barry@python.org>
parents:
47318
diff
changeset
|
1097 co = filter(None, self.headers.get_all('cookie', [])) |
|
63443
93b3ae63d2f3
Merged revisions 83371,83390 via svnmerge from
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1098 cookie_str = ', '.join(co) |
|
93b3ae63d2f3
Merged revisions 83371,83390 via svnmerge from
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1099 if cookie_str: |
|
93b3ae63d2f3
Merged revisions 83371,83390 via svnmerge from
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parents:
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diff
changeset
|
1100 env['HTTP_COOKIE'] = cookie_str |
|
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diff
changeset
|
1101 # XXX Other HTTP_* headers |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1102 # Since we're setting the env in the parent, provide empty |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1103 # values to override previously set values |
|
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1104 for k in ('QUERY_STRING', 'REMOTE_HOST', 'CONTENT_LENGTH', |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1105 'HTTP_USER_AGENT', 'HTTP_COOKIE', 'HTTP_REFERER'): |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1106 env.setdefault(k, "") |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1107 |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
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diff
changeset
|
1108 self.send_response(200, "Script output follows") |
|
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1109 self.flush_headers() |
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1110 |
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1111 decoded_query = query.replace('+', ' ') |
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1112 |
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1113 if self.have_fork: |
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1114 # Unix -- fork as we should |
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1115 args = [script] |
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1116 if '=' not in decoded_query: |
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1117 args.append(decoded_query) |
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1118 nobody = nobody_uid() |
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1119 self.wfile.flush() # Always flush before forking |
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1120 pid = os.fork() |
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1121 if pid != 0: |
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1122 # Parent |
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1123 pid, sts = os.waitpid(pid, 0) |
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1124 # throw away additional data [see bug #427345] |
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1125 while select.select([self.rfile], [], [], 0)[0]: |
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1126 if not self.rfile.read(1): |
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1127 break |
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1128 if sts: |
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1129 self.log_error("CGI script exit status %#x", sts) |
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1130 return |
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1131 # Child |
|
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1132 try: |
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1133 try: |
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1134 os.setuid(nobody) |
|
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1135 except OSError: |
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1136 pass |
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1137 os.dup2(self.rfile.fileno(), 0) |
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1138 os.dup2(self.wfile.fileno(), 1) |
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1139 os.execve(scriptfile, args, env) |
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1140 except: |
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1141 self.server.handle_error(self.request, self.client_address) |
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1142 os._exit(127) |
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1143 |
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1144 else: |
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1145 # Non-Unix -- use subprocess |
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1146 import subprocess |
|
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1147 cmdline = [scriptfile] |
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1148 if self.is_python(scriptfile): |
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1149 interp = sys.executable |
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1150 if interp.lower().endswith("w.exe"): |
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1151 # On Windows, use python.exe, not pythonw.exe |
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1152 interp = interp[:-5] + interp[-4:] |
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1153 cmdline = [interp, '-u'] + cmdline |
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1154 if '=' not in query: |
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1155 cmdline.append(query) |
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1156 self.log_message("command: %s", subprocess.list2cmdline(cmdline)) |
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1157 try: |
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1158 nbytes = int(length) |
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1159 except (TypeError, ValueError): |
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1160 nbytes = 0 |
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1161 p = subprocess.Popen(cmdline, |
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1162 stdin=subprocess.PIPE, |
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1163 stdout=subprocess.PIPE, |
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1164 stderr=subprocess.PIPE, |
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1165 env = env |
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1166 ) |
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1167 if self.command.lower() == "post" and nbytes > 0: |
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1168 data = self.rfile.read(nbytes) |
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1169 else: |
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1170 data = None |
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1171 # throw away additional data [see bug #427345] |
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1172 while select.select([self.rfile._sock], [], [], 0)[0]: |
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1173 if not self.rfile._sock.recv(1): |
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1174 break |
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1175 stdout, stderr = p.communicate(data) |
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1176 self.wfile.write(stdout) |
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1177 if stderr: |
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1178 self.log_error('%s', stderr) |
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1179 p.stderr.close() |
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1180 p.stdout.close() |
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1181 status = p.returncode |
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1182 if status: |
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1183 self.log_error("CGI script exit status %#x", status) |
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1184 else: |
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1185 self.log_message("CGI script exited OK") |
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1186 |
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1187 |
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1188 def test(HandlerClass=BaseHTTPRequestHandler, |
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1189 ServerClass=HTTPServer, protocol="HTTP/1.0", port=8000, bind=""): |
| 2887 | 1190 """Test the HTTP request handler class. |
| 1191 | |
| 1192 This runs an HTTP server on port 8000 (or the first command line | |
| 1193 argument). | |
| 1194 | |
| 1195 """ | |
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1196 server_address = (bind, port) |
| 2887 | 1197 |
|
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Patch #430706: Persistent connections in BaseHTTPServer.
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1198 HandlerClass.protocol_version = protocol |
| 2887 | 1199 httpd = ServerClass(server_address, HandlerClass) |
| 1200 | |
|
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Patch #401196: Use getaddrinfo and AF_INET6 in TCP servers and clients.
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1201 sa = httpd.socket.getsockname() |
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Fix most trivially-findable print statements.
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1202 print("Serving HTTP on", sa[0], "port", sa[1], "...") |
|
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1203 try: |
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1204 httpd.serve_forever() |
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1205 except KeyboardInterrupt: |
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1206 print("\nKeyboard interrupt received, exiting.") |
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1207 httpd.server_close() |
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1208 sys.exit(0) |
| 2887 | 1209 |
| 1210 if __name__ == '__main__': | |
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1211 parser = argparse.ArgumentParser() |
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1212 parser.add_argument('--cgi', action='store_true', |
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1213 help='Run as CGI Server') |
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1214 parser.add_argument('--bind', '-b', default='', metavar='ADDRESS', |
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1215 help='Specify alternate bind address ' |
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1216 '[default: all interfaces]') |
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1217 parser.add_argument('port', action='store', |
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1218 default=8000, type=int, |
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1219 nargs='?', |
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1220 help='Specify alternate port [default: 8000]') |
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1221 args = parser.parse_args() |
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1222 if args.cgi: |
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1223 handler_class = CGIHTTPRequestHandler |
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1224 else: |
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1225 handler_class = SimpleHTTPRequestHandler |
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1226 test(HandlerClass=handler_class, port=args.port, bind=args.bind) |