Mercurial > cpython-lru_cache-weakref
annotate Lib/http/server.py @ 68401:45d76bb9fbcd 3.2
merge 3.1
| author | Benjamin Peterson <benjamin@python.org> |
|---|---|
| date | Sat, 12 Mar 2011 11:58:40 -0600 |
| parents | 3c9232a684ae |
| children | db4967095f10 b39270c6b8d1 |
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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 # |
| 2887 | 56 # Here's a quote from the NCSA httpd docs about log file format. |
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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"] |
| 2887 | 86 |
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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 |
| 2887 | 103 |
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104 # Default error message template |
| 2887 | 105 DEFAULT_ERROR_MESSAGE = """\ |
| 106 <head> | |
| 107 <title>Error response</title> | |
| 108 </head> | |
| 109 <body> | |
| 110 <h1>Error response</h1> | |
| 111 <p>Error code %(code)d. | |
| 112 <p>Message: %(message)s. | |
| 113 <p>Error code explanation: %(code)s = %(explain)s. | |
| 114 </body> | |
| 115 """ | |
| 116 | |
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117 DEFAULT_ERROR_CONTENT_TYPE = "text/html;charset=utf-8" |
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118 |
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119 def _quote_html(html): |
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120 return html.replace("&", "&").replace("<", "<").replace(">", ">") |
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122 class HTTPServer(socketserver.TCPServer): |
| 2887 | 123 |
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124 allow_reuse_address = 1 # Seems to make sense in testing environment |
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125 |
| 2887 | 126 def server_bind(self): |
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127 """Override server_bind to store the server name.""" |
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128 socketserver.TCPServer.server_bind(self) |
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129 host, port = self.socket.getsockname()[:2] |
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130 self.server_name = socket.getfqdn(host) |
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131 self.server_port = port |
| 2887 | 132 |
| 133 | |
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134 class BaseHTTPRequestHandler(socketserver.StreamRequestHandler): |
| 2887 | 135 |
| 136 """HTTP request handler base class. | |
| 137 | |
| 138 The following explanation of HTTP serves to guide you through the | |
| 139 code as well as to expose any misunderstandings I may have about | |
| 140 HTTP (so you don't need to read the code to figure out I'm wrong | |
| 141 :-). | |
| 142 | |
| 143 HTTP (HyperText Transfer Protocol) is an extensible protocol on | |
| 144 top of a reliable stream transport (e.g. TCP/IP). The protocol | |
| 145 recognizes three parts to a request: | |
| 146 | |
| 147 1. One line identifying the request type and path | |
| 148 2. An optional set of RFC-822-style headers | |
| 149 3. An optional data part | |
| 150 | |
| 151 The headers and data are separated by a blank line. | |
| 152 | |
| 153 The first line of the request has the form | |
| 154 | |
| 155 <command> <path> <version> | |
| 156 | |
| 157 where <command> is a (case-sensitive) keyword such as GET or POST, | |
| 158 <path> is a string containing path information for the request, | |
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159 and <version> should be the string "HTTP/1.0" or "HTTP/1.1". |
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160 <path> is encoded using the URL encoding scheme (using %xx to signify |
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161 the ASCII character with hex code xx). |
| 2887 | 162 |
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163 The specification specifies that lines are separated by CRLF but |
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164 for compatibility with the widest range of clients recommends |
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165 servers also handle LF. Similarly, whitespace in the request line |
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166 is treated sensibly (allowing multiple spaces between components |
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167 and allowing trailing whitespace). |
| 2887 | 168 |
| 169 Similarly, for output, lines ought to be separated by CRLF pairs | |
| 170 but most clients grok LF characters just fine. | |
| 171 | |
| 172 If the first line of the request has the form | |
| 173 | |
| 174 <command> <path> | |
| 175 | |
| 176 (i.e. <version> is left out) then this is assumed to be an HTTP | |
| 177 0.9 request; this form has no optional headers and data part and | |
| 178 the reply consists of just the data. | |
| 179 | |
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180 The reply form of the HTTP 1.x protocol again has three parts: |
| 2887 | 181 |
| 182 1. One line giving the response code | |
| 183 2. An optional set of RFC-822-style headers | |
| 184 3. The data | |
| 185 | |
| 186 Again, the headers and data are separated by a blank line. | |
| 187 | |
| 188 The response code line has the form | |
| 189 | |
| 190 <version> <responsecode> <responsestring> | |
| 191 | |
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192 where <version> is the protocol version ("HTTP/1.0" or "HTTP/1.1"), |
| 2887 | 193 <responsecode> is a 3-digit response code indicating success or |
| 194 failure of the request, and <responsestring> is an optional | |
| 195 human-readable string explaining what the response code means. | |
| 196 | |
| 197 This server parses the request and the headers, and then calls a | |
| 198 function specific to the request type (<command>). Specifically, | |
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199 a request SPAM will be handled by a method do_SPAM(). If no |
| 2887 | 200 such method exists the server sends an error response to the |
| 201 client. If it exists, it is called with no arguments: | |
| 202 | |
| 203 do_SPAM() | |
| 204 | |
| 205 Note that the request name is case sensitive (i.e. SPAM and spam | |
| 206 are different requests). | |
| 207 | |
| 208 The various request details are stored in instance variables: | |
| 209 | |
| 210 - client_address is the client IP address in the form (host, | |
| 211 port); | |
| 212 | |
| 213 - command, path and version are the broken-down request line; | |
| 214 | |
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215 - headers is an instance of email.message.Message (or a derived |
| 2887 | 216 class) containing the header information; |
| 217 | |
| 218 - rfile is a file object open for reading positioned at the | |
| 219 start of the optional input data part; | |
| 220 | |
| 221 - wfile is a file object open for writing. | |
| 222 | |
| 223 IT IS IMPORTANT TO ADHERE TO THE PROTOCOL FOR WRITING! | |
| 224 | |
| 225 The first thing to be written must be the response line. Then | |
| 226 follow 0 or more header lines, then a blank line, and then the | |
| 227 actual data (if any). The meaning of the header lines depends on | |
| 228 the command executed by the server; in most cases, when data is | |
| 229 returned, there should be at least one header line of the form | |
| 230 | |
| 231 Content-type: <type>/<subtype> | |
| 232 | |
| 233 where <type> and <subtype> should be registered MIME types, | |
| 234 e.g. "text/html" or "text/plain". | |
| 235 | |
| 236 """ | |
| 237 | |
| 238 # The Python system version, truncated to its first component. | |
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239 sys_version = "Python/" + sys.version.split()[0] |
| 2887 | 240 |
| 241 # The server software version. You may want to override this. | |
| 242 # The format is multiple whitespace-separated strings, | |
| 243 # where each string is of the form name[/version]. | |
| 244 server_version = "BaseHTTP/" + __version__ | |
| 245 | |
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246 error_message_format = DEFAULT_ERROR_MESSAGE |
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247 error_content_type = DEFAULT_ERROR_CONTENT_TYPE |
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248 |
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249 # The default request version. This only affects responses up until |
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250 # the point where the request line is parsed, so it mainly decides what |
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251 # the client gets back when sending a malformed request line. |
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252 # Most web servers default to HTTP 0.9, i.e. don't send a status line. |
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253 default_request_version = "HTTP/0.9" |
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254 |
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255 def parse_request(self): |
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256 """Parse a request (internal). |
| 2887 | 257 |
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258 The request should be stored in self.raw_requestline; the results |
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259 are in self.command, self.path, self.request_version and |
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260 self.headers. |
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261 |
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262 Return True for success, False for failure; on failure, an |
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263 error is sent back. |
| 2887 | 264 |
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265 """ |
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266 self.command = None # set in case of error on the first line |
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267 self.request_version = version = self.default_request_version |
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268 self.close_connection = 1 |
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269 requestline = str(self.raw_requestline, 'iso-8859-1') |
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270 if requestline[-2:] == '\r\n': |
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271 requestline = requestline[:-2] |
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272 elif requestline[-1:] == '\n': |
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273 requestline = requestline[:-1] |
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274 self.requestline = requestline |
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275 words = requestline.split() |
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276 if len(words) == 3: |
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277 [command, path, version] = words |
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278 if version[:5] != 'HTTP/': |
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279 self.send_error(400, "Bad request version (%r)" % version) |
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280 return False |
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281 try: |
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282 base_version_number = version.split('/', 1)[1] |
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283 version_number = base_version_number.split(".") |
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284 # RFC 2145 section 3.1 says there can be only one "." and |
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285 # - major and minor numbers MUST be treated as |
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286 # separate integers; |
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287 # - HTTP/2.4 is a lower version than HTTP/2.13, which in |
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288 # turn is lower than HTTP/12.3; |
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289 # - Leading zeros MUST be ignored by recipients. |
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290 if len(version_number) != 2: |
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291 raise ValueError |
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292 version_number = int(version_number[0]), int(version_number[1]) |
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293 except (ValueError, IndexError): |
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294 self.send_error(400, "Bad request version (%r)" % version) |
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295 return False |
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296 if version_number >= (1, 1) and self.protocol_version >= "HTTP/1.1": |
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297 self.close_connection = 0 |
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298 if version_number >= (2, 0): |
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299 self.send_error(505, |
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300 "Invalid HTTP Version (%s)" % base_version_number) |
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301 return False |
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302 elif len(words) == 2: |
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303 [command, path] = words |
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304 self.close_connection = 1 |
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305 if command != 'GET': |
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306 self.send_error(400, |
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307 "Bad HTTP/0.9 request type (%r)" % command) |
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308 return False |
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309 elif not words: |
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310 return False |
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311 else: |
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312 self.send_error(400, "Bad request syntax (%r)" % requestline) |
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313 return False |
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314 self.command, self.path, self.request_version = command, path, version |
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315 |
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316 # Examine the headers and look for a Connection directive. |
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317 try: |
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318 self.headers = http.client.parse_headers(self.rfile, |
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319 _class=self.MessageClass) |
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320 except http.client.LineTooLong: |
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321 self.send_error(400, "Line too long") |
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322 return False |
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323 |
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324 conntype = self.headers.get('Connection', "") |
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325 if conntype.lower() == 'close': |
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326 self.close_connection = 1 |
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327 elif (conntype.lower() == 'keep-alive' and |
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328 self.protocol_version >= "HTTP/1.1"): |
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329 self.close_connection = 0 |
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330 # Examine the headers and look for an Expect directive |
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331 expect = self.headers.get('Expect', "") |
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332 if (expect.lower() == "100-continue" and |
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333 self.protocol_version >= "HTTP/1.1" and |
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334 self.request_version >= "HTTP/1.1"): |
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335 if not self.handle_expect_100(): |
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336 return False |
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337 return True |
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338 |
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339 def handle_expect_100(self): |
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340 """Decide what to do with an "Expect: 100-continue" header. |
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341 |
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342 If the client is expecting a 100 Continue response, we must |
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343 respond with either a 100 Continue or a final response before |
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344 waiting for the request body. The default is to always respond |
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345 with a 100 Continue. You can behave differently (for example, |
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346 reject unauthorized requests) by overriding this method. |
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347 |
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348 This method should either return True (possibly after sending |
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349 a 100 Continue response) or send an error response and return |
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350 False. |
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351 |
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352 """ |
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353 self.send_response_only(100) |
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354 return True |
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355 |
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356 def handle_one_request(self): |
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357 """Handle a single HTTP request. |
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358 |
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359 You normally don't need to override this method; see the class |
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360 __doc__ string for information on how to handle specific HTTP |
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361 commands such as GET and POST. |
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362 |
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363 """ |
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364 try: |
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365 self.raw_requestline = self.rfile.readline(65537) |
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366 if len(self.raw_requestline) > 65536: |
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367 self.requestline = '' |
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368 self.request_version = '' |
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369 self.command = '' |
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370 self.send_error(414) |
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371 return |
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372 if not self.raw_requestline: |
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373 self.close_connection = 1 |
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374 return |
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375 if not self.parse_request(): |
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376 # An error code has been sent, just exit |
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377 return |
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378 mname = 'do_' + self.command |
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379 if not hasattr(self, mname): |
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380 self.send_error(501, "Unsupported method (%r)" % self.command) |
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381 return |
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382 method = getattr(self, mname) |
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383 method() |
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384 self.wfile.flush() #actually send the response if not already done. |
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385 except socket.timeout as e: |
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386 #a read or a write timed out. Discard this connection |
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387 self.log_error("Request timed out: %r", e) |
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388 self.close_connection = 1 |
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389 return |
| 2887 | 390 |
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391 def handle(self): |
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392 """Handle multiple requests if necessary.""" |
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393 self.close_connection = 1 |
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394 |
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395 self.handle_one_request() |
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396 while not self.close_connection: |
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397 self.handle_one_request() |
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398 |
| 2887 | 399 def send_error(self, code, message=None): |
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400 """Send and log an error reply. |
| 2887 | 401 |
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402 Arguments are the error code, and a detailed message. |
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403 The detailed message defaults to the short entry matching the |
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404 response code. |
| 2887 | 405 |
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406 This sends an error response (so it must be called before any |
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407 output has been generated), logs the error, and finally sends |
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408 a piece of HTML explaining the error to the user. |
| 2887 | 409 |
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410 """ |
| 2887 | 411 |
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412 try: |
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413 shortmsg, longmsg = self.responses[code] |
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414 except KeyError: |
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415 shortmsg, longmsg = '???', '???' |
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416 if message is None: |
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417 message = shortmsg |
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418 explain = longmsg |
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419 self.log_error("code %d, message %s", code, message) |
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420 # using _quote_html to prevent Cross Site Scripting attacks (see bug #1100201) |
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421 content = (self.error_message_format % |
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422 {'code': code, 'message': _quote_html(message), 'explain': explain}) |
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423 self.send_response(code, message) |
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424 self.send_header("Content-Type", self.error_content_type) |
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425 self.send_header('Connection', 'close') |
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426 self.end_headers() |
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427 if self.command != 'HEAD' and code >= 200 and code not in (204, 304): |
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428 self.wfile.write(content.encode('UTF-8', 'replace')) |
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| 430 def send_response(self, code, message=None): | |
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431 """Send the response header and log the response code. |
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433 Also send two standard headers with the server software |
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434 version and the current date. |
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436 """ |
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437 self.log_request(code) |
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438 self.send_response_only(code, message) |
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439 self.send_header('Server', self.version_string()) |
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440 self.send_header('Date', self.date_time_string()) |
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441 |
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442 def send_response_only(self, code, message=None): |
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443 """Send the response header only.""" |
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444 if message is None: |
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445 if code in self.responses: |
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446 message = self.responses[code][0] |
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447 else: |
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448 message = '' |
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449 if self.request_version != 'HTTP/0.9': |
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450 self.wfile.write(("%s %d %s\r\n" % |
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451 (self.protocol_version, code, message)).encode('latin1', 'strict')) |
| 2887 | 452 |
| 453 def send_header(self, keyword, value): | |
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454 """Send a MIME header.""" |
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455 if self.request_version != 'HTTP/0.9': |
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456 if not hasattr(self, '_headers_buffer'): |
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457 self._headers_buffer = [] |
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458 self._headers_buffer.append( |
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459 ("%s: %s\r\n" % (keyword, value)).encode('latin1', 'strict')) |
| 2887 | 460 |
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461 if keyword.lower() == 'connection': |
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462 if value.lower() == 'close': |
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463 self.close_connection = 1 |
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464 elif value.lower() == 'keep-alive': |
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465 self.close_connection = 0 |
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466 |
| 2887 | 467 def end_headers(self): |
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468 """Send the blank line ending the MIME headers.""" |
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469 if self.request_version != 'HTTP/0.9': |
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470 self._headers_buffer.append(b"\r\n") |
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471 self.wfile.write(b"".join(self._headers_buffer)) |
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472 self._headers_buffer = [] |
| 2887 | 473 |
| 474 def log_request(self, code='-', size='-'): | |
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475 """Log an accepted request. |
| 2887 | 476 |
| 36879 | 477 This is called by send_response(). |
| 2887 | 478 |
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479 """ |
| 2887 | 480 |
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481 self.log_message('"%s" %s %s', |
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482 self.requestline, str(code), str(size)) |
| 2887 | 483 |
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484 def log_error(self, format, *args): |
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485 """Log an error. |
| 2887 | 486 |
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487 This is called when a request cannot be fulfilled. By |
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488 default it passes the message on to log_message(). |
| 2887 | 489 |
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490 Arguments are the same as for log_message(). |
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492 XXX This should go to the separate error log. |
| 2887 | 493 |
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494 """ |
| 2887 | 495 |
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496 self.log_message(format, *args) |
| 2887 | 497 |
| 498 def log_message(self, format, *args): | |
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499 """Log an arbitrary message. |
| 2887 | 500 |
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501 This is used by all other logging functions. Override |
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502 it if you have specific logging wishes. |
| 2887 | 503 |
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504 The first argument, FORMAT, is a format string for the |
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505 message to be logged. If the format string contains |
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506 any % escapes requiring parameters, they should be |
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507 specified as subsequent arguments (it's just like |
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508 printf!). |
| 2887 | 509 |
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510 The client host and current date/time are prefixed to |
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511 every message. |
| 2887 | 512 |
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513 """ |
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515 sys.stderr.write("%s - - [%s] %s\n" % |
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516 (self.address_string(), |
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517 self.log_date_time_string(), |
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518 format%args)) |
| 2887 | 519 |
| 520 def version_string(self): | |
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521 """Return the server software version string.""" |
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522 return self.server_version + ' ' + self.sys_version |
| 2887 | 523 |
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524 def date_time_string(self, timestamp=None): |
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525 """Return the current date and time formatted for a message header.""" |
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526 if timestamp is None: |
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527 timestamp = time.time() |
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528 year, month, day, hh, mm, ss, wd, y, z = time.gmtime(timestamp) |
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529 s = "%s, %02d %3s %4d %02d:%02d:%02d GMT" % ( |
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530 self.weekdayname[wd], |
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531 day, self.monthname[month], year, |
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532 hh, mm, ss) |
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533 return s |
| 2887 | 534 |
| 535 def log_date_time_string(self): | |
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536 """Return the current time formatted for logging.""" |
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537 now = time.time() |
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538 year, month, day, hh, mm, ss, x, y, z = time.localtime(now) |
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539 s = "%02d/%3s/%04d %02d:%02d:%02d" % ( |
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540 day, self.monthname[month], year, hh, mm, ss) |
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541 return s |
| 2887 | 542 |
| 543 weekdayname = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] | |
| 544 | |
| 545 monthname = [None, | |
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546 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', |
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547 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] |
| 2887 | 548 |
| 549 def address_string(self): | |
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550 """Return the client address formatted for logging. |
| 2887 | 551 |
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552 This version looks up the full hostname using gethostbyaddr(), |
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553 and tries to find a name that contains at least one dot. |
| 2887 | 554 |
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555 """ |
| 2887 | 556 |
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557 host, port = self.client_address[:2] |
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558 return socket.getfqdn(host) |
| 2887 | 559 |
| 560 # Essentially static class variables | |
| 561 | |
| 562 # The version of the HTTP protocol we support. | |
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563 # Set this to HTTP/1.1 to enable automatic keepalive |
| 2887 | 564 protocol_version = "HTTP/1.0" |
| 565 | |
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566 # MessageClass used to parse headers |
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567 MessageClass = http.client.HTTPMessage |
| 2887 | 568 |
| 569 # Table mapping response codes to messages; entries have the | |
| 570 # form {code: (shortmessage, longmessage)}. | |
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571 # See RFC 2616. |
| 2887 | 572 responses = { |
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573 100: ('Continue', 'Request received, please continue'), |
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574 101: ('Switching Protocols', |
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575 'Switching to new protocol; obey Upgrade header'), |
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576 |
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577 200: ('OK', 'Request fulfilled, document follows'), |
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578 201: ('Created', 'Document created, URL follows'), |
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579 202: ('Accepted', |
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580 'Request accepted, processing continues off-line'), |
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581 203: ('Non-Authoritative Information', 'Request fulfilled from cache'), |
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582 204: ('No Content', 'Request fulfilled, nothing follows'), |
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583 205: ('Reset Content', 'Clear input form for further input.'), |
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584 206: ('Partial Content', 'Partial content follows.'), |
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585 |
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586 300: ('Multiple Choices', |
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587 'Object has several resources -- see URI list'), |
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588 301: ('Moved Permanently', 'Object moved permanently -- see URI list'), |
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589 302: ('Found', 'Object moved temporarily -- see URI list'), |
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590 303: ('See Other', 'Object moved -- see Method and URL list'), |
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591 304: ('Not Modified', |
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592 'Document has not changed since given time'), |
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593 305: ('Use Proxy', |
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594 'You must use proxy specified in Location to access this ' |
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595 'resource.'), |
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596 307: ('Temporary Redirect', |
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597 'Object moved temporarily -- see URI list'), |
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598 |
|
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599 400: ('Bad Request', |
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600 'Bad request syntax or unsupported method'), |
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601 401: ('Unauthorized', |
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602 'No permission -- see authorization schemes'), |
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603 402: ('Payment Required', |
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604 'No payment -- see charging schemes'), |
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605 403: ('Forbidden', |
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606 'Request forbidden -- authorization will not help'), |
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607 404: ('Not Found', 'Nothing matches the given URI'), |
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608 405: ('Method Not Allowed', |
|
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Merged revisions 78301 via svnmerge from
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609 'Specified method is invalid for this resource.'), |
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610 406: ('Not Acceptable', 'URI not available in preferred format.'), |
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611 407: ('Proxy Authentication Required', 'You must authenticate with ' |
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612 'this proxy before proceeding.'), |
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613 408: ('Request Timeout', 'Request timed out; try again later.'), |
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614 409: ('Conflict', 'Request conflict.'), |
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615 410: ('Gone', |
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616 'URI no longer exists and has been permanently removed.'), |
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617 411: ('Length Required', 'Client must specify Content-Length.'), |
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618 412: ('Precondition Failed', 'Precondition in headers is false.'), |
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619 413: ('Request Entity Too Large', 'Entity is too large.'), |
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620 414: ('Request-URI Too Long', 'URI is too long.'), |
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621 415: ('Unsupported Media Type', 'Entity body in unsupported format.'), |
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622 416: ('Requested Range Not Satisfiable', |
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623 'Cannot satisfy request range.'), |
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624 417: ('Expectation Failed', |
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625 'Expect condition could not be satisfied.'), |
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626 |
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627 500: ('Internal Server Error', 'Server got itself in trouble'), |
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628 501: ('Not Implemented', |
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629 'Server does not support this operation'), |
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630 502: ('Bad Gateway', 'Invalid responses from another server/proxy.'), |
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631 503: ('Service Unavailable', |
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632 'The server cannot process the request due to a high load'), |
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633 504: ('Gateway Timeout', |
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634 'The gateway server did not receive a timely response'), |
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635 505: ('HTTP Version Not Supported', 'Cannot fulfill request.'), |
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636 } |
| 2887 | 637 |
| 638 | |
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639 class SimpleHTTPRequestHandler(BaseHTTPRequestHandler): |
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640 |
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641 """Simple HTTP request handler with GET and HEAD commands. |
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642 |
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643 This serves files from the current directory and any of its |
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644 subdirectories. The MIME type for files is determined by |
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645 calling the .guess_type() method. |
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646 |
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647 The GET and HEAD requests are identical except that the HEAD |
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648 request omits the actual contents of the file. |
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649 |
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650 """ |
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651 |
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652 server_version = "SimpleHTTP/" + __version__ |
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653 |
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654 def do_GET(self): |
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655 """Serve a GET request.""" |
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656 f = self.send_head() |
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657 if f: |
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658 self.copyfile(f, self.wfile) |
|
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659 f.close() |
|
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660 |
|
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|
661 def do_HEAD(self): |
|
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662 """Serve a HEAD request.""" |
|
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663 f = self.send_head() |
|
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|
664 if f: |
|
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|
665 f.close() |
|
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|
666 |
|
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|
667 def send_head(self): |
|
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|
668 """Common code for GET and HEAD commands. |
|
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|
669 |
|
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|
670 This sends the response code and MIME headers. |
|
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|
671 |
|
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|
672 Return value is either a file object (which has to be copied |
|
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|
673 to the outputfile by the caller unless the command was HEAD, |
|
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|
674 and must be closed by the caller under all circumstances), or |
|
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|
675 None, in which case the caller has nothing further to do. |
|
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|
676 |
|
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|
677 """ |
|
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678 path = self.translate_path(self.path) |
|
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|
679 f = None |
|
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|
680 if os.path.isdir(path): |
|
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681 if not self.path.endswith('/'): |
|
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682 # redirect browser - doing basically what apache does |
|
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683 self.send_response(301) |
|
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|
684 self.send_header("Location", self.path + "/") |
|
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|
685 self.end_headers() |
|
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|
686 return None |
|
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|
687 for index in "index.html", "index.htm": |
|
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Georg Brandl <georg@python.org>
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|
688 index = os.path.join(path, index) |
|
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|
689 if os.path.exists(index): |
|
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|
690 path = index |
|
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|
691 break |
|
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|
692 else: |
|
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|
693 return self.list_directory(path) |
|
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|
694 ctype = self.guess_type(path) |
|
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|
695 try: |
|
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|
696 f = open(path, 'rb') |
|
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|
697 except IOError: |
|
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|
698 self.send_error(404, "File not found") |
|
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|
699 return None |
|
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Georg Brandl <georg@python.org>
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diff
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|
700 self.send_response(200) |
|
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changeset
|
701 self.send_header("Content-type", ctype) |
|
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Georg Brandl <georg@python.org>
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|
702 fs = os.fstat(f.fileno()) |
|
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Georg Brandl <georg@python.org>
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|
703 self.send_header("Content-Length", str(fs[6])) |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
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|
704 self.send_header("Last-Modified", self.date_time_string(fs.st_mtime)) |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
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diff
changeset
|
705 self.end_headers() |
|
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diff
changeset
|
706 return f |
|
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parents:
47278
diff
changeset
|
707 |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
708 def list_directory(self, path): |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
709 """Helper to produce a directory listing (absent index.html). |
|
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
710 |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
711 Return value is either a file object, or None (indicating an |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
712 error). In either case, the headers are sent, making the |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
713 interface the same as for send_head(). |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
714 |
|
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
715 """ |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
716 try: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
717 list = os.listdir(path) |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
718 except os.error: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
719 self.send_error(404, "No permission to list directory") |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
720 return None |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
721 list.sort(key=lambda a: a.lower()) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
722 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
|
723 displaypath = html.escape(urllib.parse.unquote(self.path)) |
|
47318
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Create http package. #2883.
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diff
changeset
|
724 r.append('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">') |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
725 r.append("<html>\n<title>Directory listing for %s</title>\n" % displaypath) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
726 r.append("<body>\n<h2>Directory listing for %s</h2>\n" % displaypath) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
727 r.append("<hr>\n<ul>\n") |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
728 for name in list: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
729 fullname = os.path.join(path, name) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
730 displayname = linkname = name |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
731 # Append / for directories or @ for symbolic links |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
732 if os.path.isdir(fullname): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
733 displayname = name + "/" |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
734 linkname = name + "/" |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
735 if os.path.islink(fullname): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
736 displayname = name + "@" |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
737 # Note: a link to a directory displays with @ and links with / |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
738 r.append('<li><a href="%s">%s</a>\n' |
|
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
|
739 % (urllib.parse.quote(linkname), html.escape(displayname))) |
|
47318
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
740 r.append("</ul>\n<hr>\n</body>\n</html>\n") |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
741 enc = sys.getfilesystemencoding() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
742 encoded = ''.join(r).encode(enc) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
743 f = io.BytesIO() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
744 f.write(encoded) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
745 f.seek(0) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
746 self.send_response(200) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
747 self.send_header("Content-type", "text/html; charset=%s" % enc) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
748 self.send_header("Content-Length", str(len(encoded))) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
749 self.end_headers() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
750 return f |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
751 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
752 def translate_path(self, path): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
753 """Translate a /-separated PATH to the local filename syntax. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
754 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
755 Components that mean special things to the local file system |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
756 (e.g. drive or directory names) are ignored. (XXX They should |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
757 probably be diagnosed.) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
758 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
759 """ |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
760 # abandon query parameters |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
761 path = path.split('?',1)[0] |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
762 path = path.split('#',1)[0] |
|
48334
5a416a6417d3
Make a new urllib package .
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
47657
diff
changeset
|
763 path = posixpath.normpath(urllib.parse.unquote(path)) |
|
47318
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
764 words = path.split('/') |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
765 words = filter(None, words) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
766 path = os.getcwd() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
767 for word in words: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
768 drive, word = os.path.splitdrive(word) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
769 head, word = os.path.split(word) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
770 if word in (os.curdir, os.pardir): continue |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
771 path = os.path.join(path, word) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
772 return path |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
773 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
774 def copyfile(self, source, outputfile): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
775 """Copy all data between two file objects. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
776 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
777 The SOURCE argument is a file object open for reading |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
778 (or anything with a read() method) and the DESTINATION |
|
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779 argument is a file object open for writing (or |
|
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|
780 anything with a write() method). |
|
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Georg Brandl <georg@python.org>
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diff
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|
781 |
|
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diff
changeset
|
782 The only reason for overriding this would be to change |
|
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Create http package. #2883.
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|
783 the block size or perhaps to replace newlines by CRLF |
|
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|
784 -- note however that this the default server uses this |
|
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diff
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|
785 to copy binary data as well. |
|
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diff
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|
786 |
|
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|
787 """ |
|
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788 shutil.copyfileobj(source, outputfile) |
|
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Create http package. #2883.
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|
789 |
|
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|
790 def guess_type(self, path): |
|
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|
791 """Guess the type of a file. |
|
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Create http package. #2883.
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|
792 |
|
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|
793 Argument is a PATH (a filename). |
|
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|
794 |
|
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|
795 Return value is a string of the form type/subtype, |
|
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796 usable for a MIME Content-type header. |
|
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|
797 |
|
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|
798 The default implementation looks the file's extension |
|
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|
799 up in the table self.extensions_map, using application/octet-stream |
|
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|
800 as a default; however it would be permissible (if |
|
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Create http package. #2883.
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|
801 slow) to look inside the data to make a better guess. |
|
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|
802 |
|
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|
803 """ |
|
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|
804 |
|
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|
805 base, ext = posixpath.splitext(path) |
|
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|
806 if ext in self.extensions_map: |
|
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|
807 return self.extensions_map[ext] |
|
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Create http package. #2883.
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|
808 ext = ext.lower() |
|
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|
809 if ext in self.extensions_map: |
|
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|
810 return self.extensions_map[ext] |
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|
811 else: |
|
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|
812 return self.extensions_map[''] |
|
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|
813 |
|
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|
814 if not mimetypes.inited: |
|
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|
815 mimetypes.init() # try to read system mime.types |
|
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|
816 extensions_map = mimetypes.types_map.copy() |
|
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|
817 extensions_map.update({ |
|
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|
818 '': 'application/octet-stream', # Default |
|
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|
819 '.py': 'text/plain', |
|
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|
820 '.c': 'text/plain', |
|
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|
821 '.h': 'text/plain', |
|
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|
822 }) |
|
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Create http package. #2883.
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changeset
|
823 |
|
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Create http package. #2883.
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changeset
|
824 |
|
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changeset
|
825 # Utilities for CGIHTTPRequestHandler |
|
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|
826 |
|
53073
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|
827 # TODO(gregory.p.smith): Move this into an appropriate library. |
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|
828 def _url_collapse_path_split(path): |
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|
829 """ |
|
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|
830 Given a URL path, remove extra '/'s and '.' path elements and collapse |
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|
831 any '..' references. |
|
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|
832 |
|
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833 Implements something akin to RFC-2396 5.2 step 6 to parse relative paths. |
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|
834 |
|
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|
835 Returns: A tuple of (head, tail) where tail is everything after the final / |
|
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|
836 and head is everything before it. Head will always start with a '/' and, |
|
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|
837 if it contains anything else, never have a trailing '/'. |
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|
838 |
|
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|
839 Raises: IndexError if too many '..' occur within the path. |
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|
840 """ |
|
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841 # Similar to os.path.split(os.path.normpath(path)) but specific to URL |
|
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842 # path semantics rather than local operating system semantics. |
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|
843 path_parts = [] |
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|
844 for part in path.split('/'): |
|
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|
845 if part == '.': |
|
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|
846 path_parts.append('') |
|
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|
847 else: |
|
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|
848 path_parts.append(part) |
|
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|
849 # Filter out blank non trailing parts before consuming the '..'. |
|
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|
850 path_parts = [part for part in path_parts[:-1] if part] + path_parts[-1:] |
|
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|
851 if path_parts: |
|
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|
852 tail_part = path_parts.pop() |
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|
853 else: |
|
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|
854 tail_part = '' |
|
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|
855 head_parts = [] |
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|
856 for part in path_parts: |
|
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|
857 if part == '..': |
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|
858 head_parts.pop() |
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859 else: |
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|
860 head_parts.append(part) |
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|
861 if tail_part and tail_part == '..': |
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|
862 head_parts.pop() |
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863 tail_part = '' |
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864 return ('/' + '/'.join(head_parts), tail_part) |
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|
865 |
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changeset
|
866 |
|
47318
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867 nobody = None |
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868 |
|
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changeset
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869 def nobody_uid(): |
|
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870 """Internal routine to get nobody's uid""" |
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871 global nobody |
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872 if nobody: |
|
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|
873 return nobody |
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874 try: |
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875 import pwd |
|
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|
876 except ImportError: |
|
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|
877 return -1 |
|
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Georg Brandl <georg@python.org>
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878 try: |
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|
879 nobody = pwd.getpwnam('nobody')[2] |
|
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Create http package. #2883.
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880 except KeyError: |
|
66686
8b02f7f9475b
#1513299: cleanup some map() uses where a comprehension works better.
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|
881 nobody = 1 + max(x[2] for x in pwd.getpwall()) |
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882 return nobody |
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changeset
|
883 |
|
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changeset
|
884 |
|
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diff
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885 def executable(path): |
|
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886 """Test for executable file.""" |
|
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887 try: |
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|
888 st = os.stat(path) |
|
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889 except os.error: |
|
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Create http package. #2883.
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890 return False |
|
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|
891 return st.st_mode & 0o111 != 0 |
|
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|
892 |
|
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changeset
|
893 |
|
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894 class CGIHTTPRequestHandler(SimpleHTTPRequestHandler): |
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|
895 |
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|
896 """Complete HTTP server with GET, HEAD and POST commands. |
|
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897 |
|
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898 GET and HEAD also support running CGI scripts. |
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899 |
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|
900 The POST command is *only* implemented for CGI scripts. |
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|
901 |
|
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
902 """ |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
903 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
904 # Determine platform specifics |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
905 have_fork = hasattr(os, 'fork') |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
906 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
907 # Make rfile unbuffered -- we need to read one line and then pass |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
908 # the rest to a subprocess, so we can't use buffered input. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
909 rbufsize = 0 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
910 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
911 def do_POST(self): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
912 """Serve a POST request. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
913 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
914 This is only implemented for CGI scripts. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
915 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
916 """ |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
917 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
918 if self.is_cgi(): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
919 self.run_cgi() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
920 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
921 self.send_error(501, "Can only POST to CGI scripts") |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
922 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
923 def send_head(self): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
924 """Version of send_head that support CGI scripts""" |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
925 if self.is_cgi(): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
926 return self.run_cgi() |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
927 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
928 return SimpleHTTPRequestHandler.send_head(self) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
929 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
930 def is_cgi(self): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
931 """Test whether self.path corresponds to a CGI script. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
932 |
|
53073
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
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diff
changeset
|
933 Returns True and updates the cgi_info attribute to the tuple |
|
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
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diff
changeset
|
934 (dir, rest) if self.path requires running a CGI script. |
|
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
52770
diff
changeset
|
935 Returns False otherwise. |
|
47318
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Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
936 |
| 53921 | 937 If any exception is raised, the caller should assume that |
| 938 self.path was rejected as invalid and act accordingly. | |
| 939 | |
|
53073
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
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diff
changeset
|
940 The default implementation tests whether the normalized url |
|
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
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diff
changeset
|
941 path begins with one of the strings in self.cgi_directories |
|
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
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diff
changeset
|
942 (and the next character is a '/' or the end of the string). |
|
47318
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
943 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
944 """ |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
945 |
|
53073
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
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diff
changeset
|
946 splitpath = _url_collapse_path_split(self.path) |
|
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
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diff
changeset
|
947 if splitpath[0] in self.cgi_directories: |
|
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents:
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diff
changeset
|
948 self.cgi_info = splitpath |
|
3b1b6142690a
Merged revisions 71303 via svnmerge from
Benjamin Peterson <benjamin@python.org>
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diff
changeset
|
949 return True |
|
47318
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Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
950 return False |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
951 |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
952 cgi_directories = ['/cgi-bin', '/htbin'] |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
953 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
954 def is_executable(self, path): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
955 """Test whether argument path is an executable file.""" |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
956 return executable(path) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
957 |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
958 def is_python(self, path): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
959 """Test whether argument path is a Python script.""" |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
960 head, tail = os.path.splitext(path) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
961 return tail.lower() in (".py", ".pyw") |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
962 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
963 def run_cgi(self): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
964 """Execute a CGI script.""" |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
965 path = self.path |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
966 dir, rest = self.cgi_info |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
967 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
968 i = path.find('/', len(dir) + 1) |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
969 while i >= 0: |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
970 nextdir = path[:i] |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
971 nextrest = path[i+1:] |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
972 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
973 scriptdir = self.translate_path(nextdir) |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
974 if os.path.isdir(scriptdir): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
975 dir, rest = nextdir, nextrest |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
976 i = path.find('/', len(dir) + 1) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
977 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
978 break |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
979 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
980 # find an explicit query string, if present. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
981 i = rest.rfind('?') |
|
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Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
982 if i >= 0: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
983 rest, query = rest[:i], rest[i+1:] |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
984 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
985 query = '' |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
986 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
987 # dissect the part after the directory name into a script name & |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
988 # a possible additional path, to be stored in PATH_INFO. |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
989 i = rest.find('/') |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
990 if i >= 0: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
991 script, rest = rest[:i], rest[i:] |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
992 else: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
993 script, rest = rest, '' |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
994 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
995 scriptname = dir + '/' + script |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
996 scriptfile = self.translate_path(scriptname) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
997 if not os.path.exists(scriptfile): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
998 self.send_error(404, "No such CGI script (%r)" % scriptname) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
999 return |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1000 if not os.path.isfile(scriptfile): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1001 self.send_error(403, "CGI script is not a plain file (%r)" % |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1002 scriptname) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1003 return |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1004 ispy = self.is_python(scriptname) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1005 if not ispy: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1006 if not self.is_executable(scriptfile): |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1007 self.send_error(403, "CGI script is not executable (%r)" % |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1008 scriptname) |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1009 return |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1010 |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1011 # Reference: http://hoohoo.ncsa.uiuc.edu/cgi/env.html |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
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diff
changeset
|
1012 # XXX Much of the following could be prepared ahead of time! |
|
65076
945a55d4e73e
Merged revisions 85202 via svnmerge from
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diff
changeset
|
1013 env = copy.deepcopy(os.environ) |
|
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parents:
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diff
changeset
|
1014 env['SERVER_SOFTWARE'] = self.version_string() |
|
e1fcc3881cb6
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Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1015 env['SERVER_NAME'] = self.server.server_name |
|
e1fcc3881cb6
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parents:
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diff
changeset
|
1016 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
|
1017 env['SERVER_PROTOCOL'] = self.protocol_version |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1018 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
|
1019 env['REQUEST_METHOD'] = self.command |
|
48334
5a416a6417d3
Make a new urllib package .
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parents:
47657
diff
changeset
|
1020 uqrest = urllib.parse.unquote(rest) |
|
47318
e1fcc3881cb6
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parents:
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diff
changeset
|
1021 env['PATH_INFO'] = uqrest |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1022 env['PATH_TRANSLATED'] = self.translate_path(uqrest) |
|
e1fcc3881cb6
Create http package. #2883.
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parents:
47278
diff
changeset
|
1023 env['SCRIPT_NAME'] = scriptname |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
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diff
changeset
|
1024 if query: |
|
e1fcc3881cb6
Create http package. #2883.
Georg Brandl <georg@python.org>
parents:
47278
diff
changeset
|
1025 env['QUERY_STRING'] = query |
|
e1fcc3881cb6
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|
1026 host = self.address_string() |
|
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|
1027 if host != self.client_address[0]: |
|
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|
1028 env['REMOTE_HOST'] = host |
|
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|
1029 env['REMOTE_ADDR'] = self.client_address[0] |
|
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|
1030 authorization = self.headers.get("authorization") |
|
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|
1031 if authorization: |
|
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|
1032 authorization = authorization.split() |
|
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Create http package. #2883.
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|
1033 if len(authorization) == 2: |
|
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|
1034 import base64, binascii |
|
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|
1035 env['AUTH_TYPE'] = authorization[0] |
|
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|
1036 if authorization[0].lower() == "basic": |
|
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Create http package. #2883.
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diff
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|
1037 try: |
|
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|
1038 authorization = authorization[1].encode('ascii') |
|
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More codestring -> codebytes.
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|
1039 authorization = base64.decodebytes(authorization).\ |
|
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|
1040 decode('ascii') |
|
e1fcc3881cb6
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diff
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|
1041 except (binascii.Error, UnicodeError): |
|
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Create http package. #2883.
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diff
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|
1042 pass |
|
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diff
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|
1043 else: |
|
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|
1044 authorization = authorization.split(':') |
|
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|
1045 if len(authorization) == 2: |
|
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|
1046 env['REMOTE_USER'] = authorization[0] |
|
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|
1047 # XXX REMOTE_IDENT |
|
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|
1048 if self.headers.get('content-type') is None: |
|
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|
1049 env['CONTENT_TYPE'] = self.headers.get_content_type() |
|
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|
1050 else: |
|
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|
1051 env['CONTENT_TYPE'] = self.headers['content-type'] |
|
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|
1052 length = self.headers.get('content-length') |
|
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|
1053 if length: |
|
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diff
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|
1054 env['CONTENT_LENGTH'] = length |
|
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|
1055 referer = self.headers.get('referer') |
|
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|
1056 if referer: |
|
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|
1057 env['HTTP_REFERER'] = referer |
|
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|
1058 accept = [] |
|
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|
1059 for line in self.headers.getallmatchingheaders('accept'): |
|
e1fcc3881cb6
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|
1060 if line[:1] in "\t\n\r ": |
|
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|
1061 accept.append(line.strip()) |
|
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|
1062 else: |
|
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|
1063 accept = accept + line[7:].split(',') |
|
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|
1064 env['HTTP_ACCEPT'] = ','.join(accept) |
|
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|
1065 ua = self.headers.get('user-agent') |
|
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|
1066 if ua: |
|
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|
1067 env['HTTP_USER_AGENT'] = ua |
|
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|
1068 co = filter(None, self.headers.get_all('cookie', [])) |
|
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|
1069 cookie_str = ', '.join(co) |
|
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|
1070 if cookie_str: |
|
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|
1071 env['HTTP_COOKIE'] = cookie_str |
|
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|
1072 # XXX Other HTTP_* headers |
|
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|
1073 # Since we're setting the env in the parent, provide empty |
|
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|
1074 # values to override previously set values |
|
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|
1075 for k in ('QUERY_STRING', 'REMOTE_HOST', 'CONTENT_LENGTH', |
|
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|
1076 'HTTP_USER_AGENT', 'HTTP_COOKIE', 'HTTP_REFERER'): |
|
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|
1077 env.setdefault(k, "") |
|
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|
1078 |
|
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|
1079 self.send_response(200, "Script output follows") |
|
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|
1080 |
|
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|
1081 decoded_query = query.replace('+', ' ') |
|
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|
1082 |
|
e1fcc3881cb6
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|
1083 if self.have_fork: |
|
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|
1084 # Unix -- fork as we should |
|
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|
1085 args = [script] |
|
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|
1086 if '=' not in decoded_query: |
|
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|
1087 args.append(decoded_query) |
|
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|
1088 nobody = nobody_uid() |
|
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|
1089 self.wfile.flush() # Always flush before forking |
|
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1090 pid = os.fork() |
|
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|
1091 if pid != 0: |
|
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|
1092 # Parent |
|
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|
1093 pid, sts = os.waitpid(pid, 0) |
|
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|
1094 # throw away additional data [see bug #427345] |
|
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|
1095 while select.select([self.rfile], [], [], 0)[0]: |
|
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|
1096 if not self.rfile.read(1): |
|
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|
1097 break |
|
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Create http package. #2883.
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|
1098 if sts: |
|
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|
1099 self.log_error("CGI script exit status %#x", sts) |
|
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|
1100 return |
|
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|
1101 # Child |
|
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|
1102 try: |
|
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Create http package. #2883.
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|
1103 try: |
|
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|
1104 os.setuid(nobody) |
|
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|
1105 except os.error: |
|
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diff
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|
1106 pass |
|
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|
1107 os.dup2(self.rfile.fileno(), 0) |
|
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|
1108 os.dup2(self.wfile.fileno(), 1) |
|
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|
1109 os.execve(scriptfile, args, env) |
|
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|
1110 except: |
|
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|
1111 self.server.handle_error(self.request, self.client_address) |
|
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1112 os._exit(127) |
|
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1113 |
|
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|
1114 else: |
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1115 # Non-Unix -- use subprocess |
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1116 import subprocess |
|
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1117 cmdline = [scriptfile] |
|
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|
1118 if self.is_python(scriptfile): |
|
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|
1119 interp = sys.executable |
|
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1120 if interp.lower().endswith("w.exe"): |
|
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1121 # On Windows, use python.exe, not pythonw.exe |
|
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1122 interp = interp[:-5] + interp[-4:] |
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1123 cmdline = [interp, '-u'] + cmdline |
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1124 if '=' not in query: |
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1125 cmdline.append(query) |
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1126 self.log_message("command: %s", subprocess.list2cmdline(cmdline)) |
|
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1127 try: |
|
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1128 nbytes = int(length) |
|
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1129 except (TypeError, ValueError): |
|
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1130 nbytes = 0 |
|
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|
1131 p = subprocess.Popen(cmdline, |
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|
1132 stdin=subprocess.PIPE, |
|
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1133 stdout=subprocess.PIPE, |
|
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|
1134 stderr=subprocess.PIPE, |
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1135 env = env |
|
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|
1136 ) |
|
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1137 if self.command.lower() == "post" and nbytes > 0: |
|
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|
1138 data = self.rfile.read(nbytes) |
|
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|
1139 else: |
|
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|
1140 data = None |
|
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1141 # throw away additional data [see bug #427345] |
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1142 while select.select([self.rfile._sock], [], [], 0)[0]: |
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1143 if not self.rfile._sock.recv(1): |
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1144 break |
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1145 stdout, stderr = p.communicate(data) |
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1146 self.wfile.write(stdout) |
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1147 if stderr: |
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1148 self.log_error('%s', stderr) |
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1149 p.stderr.close() |
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1150 p.stdout.close() |
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1151 status = p.returncode |
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1152 if status: |
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1153 self.log_error("CGI script exit status %#x", status) |
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1154 else: |
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1155 self.log_message("CGI script exited OK") |
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1156 |
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1157 |
| 2887 | 1158 def test(HandlerClass = BaseHTTPRequestHandler, |
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1159 ServerClass = HTTPServer, protocol="HTTP/1.0"): |
| 2887 | 1160 """Test the HTTP request handler class. |
| 1161 | |
| 1162 This runs an HTTP server on port 8000 (or the first command line | |
| 1163 argument). | |
| 1164 | |
| 1165 """ | |
| 1166 | |
| 1167 if sys.argv[1:]: | |
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1168 port = int(sys.argv[1]) |
| 2887 | 1169 else: |
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1170 port = 8000 |
| 2887 | 1171 server_address = ('', port) |
| 1172 | |
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1173 HandlerClass.protocol_version = protocol |
| 2887 | 1174 httpd = ServerClass(server_address, HandlerClass) |
| 1175 | |
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1176 sa = httpd.socket.getsockname() |
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1177 print("Serving HTTP on", sa[0], "port", sa[1], "...") |
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1178 try: |
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1179 httpd.serve_forever() |
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1180 except KeyboardInterrupt: |
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1181 print("\nKeyboard interrupt received, exiting.") |
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1182 httpd.server_close() |
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1183 sys.exit(0) |
| 2887 | 1184 |
| 1185 if __name__ == '__main__': | |
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1186 test(HandlerClass=SimpleHTTPRequestHandler) |