Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1 | """HTTP/1.1 client library |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 2 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 3 | <intro stuff goes here> |
| 4 | <other stuff, too> |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 5 | |
Andrew M. Kuchling | ca2e790 | 2006-07-30 00:27:34 +0000 | [diff] [blame] | 6 | HTTPConnection goes through a number of "states", which define when a client |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 7 | may legally make another request or fetch the response for a particular |
| 8 | request. This diagram details these state transitions: |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 9 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 10 | (null) |
| 11 | | |
| 12 | | HTTPConnection() |
| 13 | v |
| 14 | Idle |
| 15 | | |
| 16 | | putrequest() |
| 17 | v |
| 18 | Request-started |
| 19 | | |
| 20 | | ( putheader() )* endheaders() |
| 21 | v |
| 22 | Request-sent |
| 23 | | |
| 24 | | response = getresponse() |
| 25 | v |
| 26 | Unread-response [Response-headers-read] |
| 27 | |\____________________ |
Tim Peters | 5ceadc8 | 2001-01-13 19:16:21 +0000 | [diff] [blame] | 28 | | | |
| 29 | | response.read() | putrequest() |
| 30 | v v |
| 31 | Idle Req-started-unread-response |
| 32 | ______/| |
| 33 | / | |
| 34 | response.read() | | ( putheader() )* endheaders() |
| 35 | v v |
| 36 | Request-started Req-sent-unread-response |
| 37 | | |
| 38 | | response.read() |
| 39 | v |
| 40 | Request-sent |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 41 | |
| 42 | This diagram presents the following rules: |
| 43 | -- a second request may not be started until {response-headers-read} |
| 44 | -- a response [object] cannot be retrieved until {request-sent} |
| 45 | -- there is no differentiation between an unread response body and a |
| 46 | partially read response body |
| 47 | |
| 48 | Note: this enforcement is applied by the HTTPConnection class. The |
| 49 | HTTPResponse class does not enforce this state machine, which |
| 50 | implies sophisticated clients may accelerate the request/response |
| 51 | pipeline. Caution should be taken, though: accelerating the states |
| 52 | beyond the above pattern may imply knowledge of the server's |
| 53 | connection-close behavior for certain requests. For example, it |
| 54 | is impossible to tell whether the server will close the connection |
| 55 | UNTIL the response headers have been read; this means that further |
| 56 | requests cannot be placed into the pipeline until it is known that |
| 57 | the server will NOT be closing the connection. |
| 58 | |
| 59 | Logical State __state __response |
| 60 | ------------- ------- ---------- |
| 61 | Idle _CS_IDLE None |
| 62 | Request-started _CS_REQ_STARTED None |
| 63 | Request-sent _CS_REQ_SENT None |
| 64 | Unread-response _CS_IDLE <response_class> |
| 65 | Req-started-unread-response _CS_REQ_STARTED <response_class> |
| 66 | Req-sent-unread-response _CS_REQ_SENT <response_class> |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 67 | """ |
Guido van Rossum | 23acc95 | 1994-02-21 16:36:04 +0000 | [diff] [blame] | 68 | |
Guido van Rossum | 65ab98c | 1995-08-07 20:13:02 +0000 | [diff] [blame] | 69 | import mimetools |
Jeremy Hylton | 6459c8d | 2001-10-11 17:47:22 +0000 | [diff] [blame] | 70 | import socket |
Jeremy Hylton | 8acf1e0 | 2002-03-08 19:35:51 +0000 | [diff] [blame] | 71 | from urlparse import urlsplit |
Bill Janssen | c459264 | 2007-08-31 19:02:23 +0000 | [diff] [blame] | 72 | import warnings |
Guido van Rossum | 23acc95 | 1994-02-21 16:36:04 +0000 | [diff] [blame] | 73 | |
Guido van Rossum | 09c8b6c | 1999-12-07 21:37:17 +0000 | [diff] [blame] | 74 | try: |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 75 | from cStringIO import StringIO |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 76 | except ImportError: |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 77 | from StringIO import StringIO |
Guido van Rossum | 09c8b6c | 1999-12-07 21:37:17 +0000 | [diff] [blame] | 78 | |
Thomas Wouters | a6900e8 | 2007-08-30 21:54:39 +0000 | [diff] [blame] | 79 | __all__ = ["HTTP", "HTTPResponse", "HTTPConnection", |
Skip Montanaro | 951a884 | 2001-06-01 16:25:38 +0000 | [diff] [blame] | 80 | "HTTPException", "NotConnected", "UnknownProtocol", |
Jeremy Hylton | 7c75c99 | 2002-06-28 23:38:14 +0000 | [diff] [blame] | 81 | "UnknownTransferEncoding", "UnimplementedFileMode", |
| 82 | "IncompleteRead", "InvalidURL", "ImproperConnectionState", |
| 83 | "CannotSendRequest", "CannotSendHeader", "ResponseNotReady", |
Georg Brandl | 6aab16e | 2006-02-17 19:17:25 +0000 | [diff] [blame] | 84 | "BadStatusLine", "error", "responses"] |
Skip Montanaro | 2dd4276 | 2001-01-23 15:35:05 +0000 | [diff] [blame] | 85 | |
Guido van Rossum | 23acc95 | 1994-02-21 16:36:04 +0000 | [diff] [blame] | 86 | HTTP_PORT = 80 |
Guido van Rossum | 09c8b6c | 1999-12-07 21:37:17 +0000 | [diff] [blame] | 87 | HTTPS_PORT = 443 |
| 88 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 89 | _UNKNOWN = 'UNKNOWN' |
| 90 | |
| 91 | # connection states |
| 92 | _CS_IDLE = 'Idle' |
| 93 | _CS_REQ_STARTED = 'Request-started' |
| 94 | _CS_REQ_SENT = 'Request-sent' |
| 95 | |
Martin v. Löwis | 39a3178 | 2004-09-18 09:03:49 +0000 | [diff] [blame] | 96 | # status codes |
| 97 | # informational |
| 98 | CONTINUE = 100 |
| 99 | SWITCHING_PROTOCOLS = 101 |
| 100 | PROCESSING = 102 |
| 101 | |
| 102 | # successful |
| 103 | OK = 200 |
| 104 | CREATED = 201 |
| 105 | ACCEPTED = 202 |
| 106 | NON_AUTHORITATIVE_INFORMATION = 203 |
| 107 | NO_CONTENT = 204 |
| 108 | RESET_CONTENT = 205 |
| 109 | PARTIAL_CONTENT = 206 |
| 110 | MULTI_STATUS = 207 |
| 111 | IM_USED = 226 |
| 112 | |
| 113 | # redirection |
| 114 | MULTIPLE_CHOICES = 300 |
| 115 | MOVED_PERMANENTLY = 301 |
| 116 | FOUND = 302 |
| 117 | SEE_OTHER = 303 |
| 118 | NOT_MODIFIED = 304 |
| 119 | USE_PROXY = 305 |
| 120 | TEMPORARY_REDIRECT = 307 |
| 121 | |
| 122 | # client error |
| 123 | BAD_REQUEST = 400 |
| 124 | UNAUTHORIZED = 401 |
| 125 | PAYMENT_REQUIRED = 402 |
| 126 | FORBIDDEN = 403 |
| 127 | NOT_FOUND = 404 |
| 128 | METHOD_NOT_ALLOWED = 405 |
| 129 | NOT_ACCEPTABLE = 406 |
| 130 | PROXY_AUTHENTICATION_REQUIRED = 407 |
| 131 | REQUEST_TIMEOUT = 408 |
| 132 | CONFLICT = 409 |
| 133 | GONE = 410 |
| 134 | LENGTH_REQUIRED = 411 |
| 135 | PRECONDITION_FAILED = 412 |
| 136 | REQUEST_ENTITY_TOO_LARGE = 413 |
| 137 | REQUEST_URI_TOO_LONG = 414 |
| 138 | UNSUPPORTED_MEDIA_TYPE = 415 |
| 139 | REQUESTED_RANGE_NOT_SATISFIABLE = 416 |
| 140 | EXPECTATION_FAILED = 417 |
| 141 | UNPROCESSABLE_ENTITY = 422 |
| 142 | LOCKED = 423 |
| 143 | FAILED_DEPENDENCY = 424 |
| 144 | UPGRADE_REQUIRED = 426 |
| 145 | |
| 146 | # server error |
| 147 | INTERNAL_SERVER_ERROR = 500 |
| 148 | NOT_IMPLEMENTED = 501 |
| 149 | BAD_GATEWAY = 502 |
| 150 | SERVICE_UNAVAILABLE = 503 |
| 151 | GATEWAY_TIMEOUT = 504 |
| 152 | HTTP_VERSION_NOT_SUPPORTED = 505 |
| 153 | INSUFFICIENT_STORAGE = 507 |
| 154 | NOT_EXTENDED = 510 |
| 155 | |
Georg Brandl | 6aab16e | 2006-02-17 19:17:25 +0000 | [diff] [blame] | 156 | # Mapping status codes to official W3C names |
| 157 | responses = { |
| 158 | 100: 'Continue', |
| 159 | 101: 'Switching Protocols', |
| 160 | |
| 161 | 200: 'OK', |
| 162 | 201: 'Created', |
| 163 | 202: 'Accepted', |
| 164 | 203: 'Non-Authoritative Information', |
| 165 | 204: 'No Content', |
| 166 | 205: 'Reset Content', |
| 167 | 206: 'Partial Content', |
| 168 | |
| 169 | 300: 'Multiple Choices', |
| 170 | 301: 'Moved Permanently', |
| 171 | 302: 'Found', |
| 172 | 303: 'See Other', |
| 173 | 304: 'Not Modified', |
| 174 | 305: 'Use Proxy', |
| 175 | 306: '(Unused)', |
| 176 | 307: 'Temporary Redirect', |
| 177 | |
| 178 | 400: 'Bad Request', |
| 179 | 401: 'Unauthorized', |
| 180 | 402: 'Payment Required', |
| 181 | 403: 'Forbidden', |
| 182 | 404: 'Not Found', |
| 183 | 405: 'Method Not Allowed', |
| 184 | 406: 'Not Acceptable', |
| 185 | 407: 'Proxy Authentication Required', |
| 186 | 408: 'Request Timeout', |
| 187 | 409: 'Conflict', |
| 188 | 410: 'Gone', |
| 189 | 411: 'Length Required', |
| 190 | 412: 'Precondition Failed', |
| 191 | 413: 'Request Entity Too Large', |
| 192 | 414: 'Request-URI Too Long', |
| 193 | 415: 'Unsupported Media Type', |
| 194 | 416: 'Requested Range Not Satisfiable', |
| 195 | 417: 'Expectation Failed', |
| 196 | |
| 197 | 500: 'Internal Server Error', |
| 198 | 501: 'Not Implemented', |
| 199 | 502: 'Bad Gateway', |
| 200 | 503: 'Service Unavailable', |
| 201 | 504: 'Gateway Timeout', |
| 202 | 505: 'HTTP Version Not Supported', |
| 203 | } |
| 204 | |
Georg Brandl | 80ba8e8 | 2005-09-29 20:16:07 +0000 | [diff] [blame] | 205 | # maximal amount of data to read at one time in _safe_read |
| 206 | MAXAMOUNT = 1048576 |
| 207 | |
Jeremy Hylton | 6d0a4c7 | 2002-07-07 16:51:37 +0000 | [diff] [blame] | 208 | class HTTPMessage(mimetools.Message): |
| 209 | |
| 210 | def addheader(self, key, value): |
| 211 | """Add header for field key handling repeats.""" |
| 212 | prev = self.dict.get(key) |
| 213 | if prev is None: |
| 214 | self.dict[key] = value |
| 215 | else: |
| 216 | combined = ", ".join((prev, value)) |
| 217 | self.dict[key] = combined |
| 218 | |
| 219 | def addcontinue(self, key, more): |
| 220 | """Add more field data from a continuation line.""" |
| 221 | prev = self.dict[key] |
| 222 | self.dict[key] = prev + "\n " + more |
| 223 | |
| 224 | def readheaders(self): |
| 225 | """Read header lines. |
| 226 | |
| 227 | Read header lines up to the entirely blank line that terminates them. |
| 228 | The (normally blank) line that ends the headers is skipped, but not |
| 229 | included in the returned list. If a non-header line ends the headers, |
| 230 | (which is an error), an attempt is made to backspace over it; it is |
| 231 | never included in the returned list. |
| 232 | |
| 233 | The variable self.status is set to the empty string if all went well, |
| 234 | otherwise it is an error message. The variable self.headers is a |
| 235 | completely uninterpreted list of lines contained in the header (so |
| 236 | printing them will reproduce the header exactly as it appears in the |
| 237 | file). |
| 238 | |
| 239 | If multiple header fields with the same name occur, they are combined |
| 240 | according to the rules in RFC 2616 sec 4.2: |
| 241 | |
| 242 | Appending each subsequent field-value to the first, each separated |
| 243 | by a comma. The order in which header fields with the same field-name |
| 244 | are received is significant to the interpretation of the combined |
| 245 | field value. |
| 246 | """ |
| 247 | # XXX The implementation overrides the readheaders() method of |
| 248 | # rfc822.Message. The base class design isn't amenable to |
| 249 | # customized behavior here so the method here is a copy of the |
| 250 | # base class code with a few small changes. |
| 251 | |
| 252 | self.dict = {} |
| 253 | self.unixfrom = '' |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 254 | self.headers = hlist = [] |
Jeremy Hylton | 6d0a4c7 | 2002-07-07 16:51:37 +0000 | [diff] [blame] | 255 | self.status = '' |
| 256 | headerseen = "" |
| 257 | firstline = 1 |
| 258 | startofline = unread = tell = None |
| 259 | if hasattr(self.fp, 'unread'): |
| 260 | unread = self.fp.unread |
| 261 | elif self.seekable: |
| 262 | tell = self.fp.tell |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 263 | while True: |
Jeremy Hylton | 6d0a4c7 | 2002-07-07 16:51:37 +0000 | [diff] [blame] | 264 | if tell: |
| 265 | try: |
| 266 | startofline = tell() |
| 267 | except IOError: |
| 268 | startofline = tell = None |
| 269 | self.seekable = 0 |
| 270 | line = self.fp.readline() |
| 271 | if not line: |
| 272 | self.status = 'EOF in headers' |
| 273 | break |
| 274 | # Skip unix From name time lines |
| 275 | if firstline and line.startswith('From '): |
| 276 | self.unixfrom = self.unixfrom + line |
| 277 | continue |
| 278 | firstline = 0 |
| 279 | if headerseen and line[0] in ' \t': |
| 280 | # XXX Not sure if continuation lines are handled properly |
| 281 | # for http and/or for repeating headers |
| 282 | # It's a continuation line. |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 283 | hlist.append(line) |
Jeremy Hylton | 6d0a4c7 | 2002-07-07 16:51:37 +0000 | [diff] [blame] | 284 | self.addcontinue(headerseen, line.strip()) |
| 285 | continue |
| 286 | elif self.iscomment(line): |
| 287 | # It's a comment. Ignore it. |
| 288 | continue |
| 289 | elif self.islast(line): |
| 290 | # Note! No pushback here! The delimiter line gets eaten. |
| 291 | break |
| 292 | headerseen = self.isheader(line) |
| 293 | if headerseen: |
| 294 | # It's a legal header line, save it. |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 295 | hlist.append(line) |
Jeremy Hylton | 6d0a4c7 | 2002-07-07 16:51:37 +0000 | [diff] [blame] | 296 | self.addheader(headerseen, line[len(headerseen)+1:].strip()) |
| 297 | continue |
| 298 | else: |
| 299 | # It's not a header line; throw it back and stop here. |
| 300 | if not self.dict: |
| 301 | self.status = 'No headers' |
| 302 | else: |
| 303 | self.status = 'Non-header line where header expected' |
| 304 | # Try to undo the read. |
| 305 | if unread: |
| 306 | unread(line) |
| 307 | elif tell: |
| 308 | self.fp.seek(startofline) |
| 309 | else: |
| 310 | self.status = self.status + '; bad seek' |
| 311 | break |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 312 | |
| 313 | class HTTPResponse: |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 314 | |
| 315 | # strict: If true, raise BadStatusLine if the status line can't be |
| 316 | # parsed as a valid HTTP/1.0 or 1.1 status line. By default it is |
Skip Montanaro | 186bec2 | 2002-07-25 16:10:38 +0000 | [diff] [blame] | 317 | # false because it prevents clients from talking to HTTP/0.9 |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 318 | # servers. Note that a response with a sufficiently corrupted |
| 319 | # status line will look like an HTTP/0.9 response. |
| 320 | |
| 321 | # See RFC 2616 sec 19.6 and RFC 1945 sec 6 for details. |
| 322 | |
Jeremy Hylton | c1b2cb9 | 2003-05-05 16:13:58 +0000 | [diff] [blame] | 323 | def __init__(self, sock, debuglevel=0, strict=0, method=None): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 324 | self.fp = sock.makefile('rb', 0) |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 325 | self.debuglevel = debuglevel |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 326 | self.strict = strict |
Jeremy Hylton | c1b2cb9 | 2003-05-05 16:13:58 +0000 | [diff] [blame] | 327 | self._method = method |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 328 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 329 | self.msg = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 330 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 331 | # from the Status-Line of the response |
Tim Peters | 07e99cb | 2001-01-14 23:47:14 +0000 | [diff] [blame] | 332 | self.version = _UNKNOWN # HTTP-Version |
| 333 | self.status = _UNKNOWN # Status-Code |
| 334 | self.reason = _UNKNOWN # Reason-Phrase |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 335 | |
Tim Peters | 07e99cb | 2001-01-14 23:47:14 +0000 | [diff] [blame] | 336 | self.chunked = _UNKNOWN # is "chunked" being used? |
| 337 | self.chunk_left = _UNKNOWN # bytes left to read in current chunk |
| 338 | self.length = _UNKNOWN # number of bytes left in response |
| 339 | self.will_close = _UNKNOWN # conn will close at end of response |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 340 | |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 341 | def _read_status(self): |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 342 | # Initialize with Simple-Response defaults |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 343 | line = self.fp.readline() |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 344 | if self.debuglevel > 0: |
| 345 | print "reply:", repr(line) |
Jeremy Hylton | b676952 | 2003-06-29 17:55:05 +0000 | [diff] [blame] | 346 | if not line: |
| 347 | # Presumably, the server closed the connection before |
| 348 | # sending a valid response. |
| 349 | raise BadStatusLine(line) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 350 | try: |
Guido van Rossum | 34735a6 | 2000-12-15 15:09:42 +0000 | [diff] [blame] | 351 | [version, status, reason] = line.split(None, 2) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 352 | except ValueError: |
| 353 | try: |
Guido van Rossum | 34735a6 | 2000-12-15 15:09:42 +0000 | [diff] [blame] | 354 | [version, status] = line.split(None, 1) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 355 | reason = "" |
| 356 | except ValueError: |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 357 | # empty version will cause next test to fail and status |
| 358 | # will be treated as 0.9 response. |
| 359 | version = "" |
| 360 | if not version.startswith('HTTP/'): |
| 361 | if self.strict: |
| 362 | self.close() |
| 363 | raise BadStatusLine(line) |
| 364 | else: |
| 365 | # assume it's a Simple-Response from an 0.9 server |
| 366 | self.fp = LineAndFileWrapper(line, self.fp) |
| 367 | return "HTTP/0.9", 200, "" |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 368 | |
Jeremy Hylton | 23d4047 | 2001-04-13 14:57:08 +0000 | [diff] [blame] | 369 | # The status code is a three-digit number |
| 370 | try: |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 371 | status = int(status) |
Jeremy Hylton | 23d4047 | 2001-04-13 14:57:08 +0000 | [diff] [blame] | 372 | if status < 100 or status > 999: |
| 373 | raise BadStatusLine(line) |
| 374 | except ValueError: |
| 375 | raise BadStatusLine(line) |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 376 | return version, status, reason |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 377 | |
Jeremy Hylton | 39c0380 | 2002-07-12 14:04:09 +0000 | [diff] [blame] | 378 | def begin(self): |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 379 | if self.msg is not None: |
| 380 | # we've already started reading the response |
| 381 | return |
| 382 | |
| 383 | # read until we get a non-100 response |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 384 | while True: |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 385 | version, status, reason = self._read_status() |
Martin v. Löwis | 39a3178 | 2004-09-18 09:03:49 +0000 | [diff] [blame] | 386 | if status != CONTINUE: |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 387 | break |
| 388 | # skip the header from the 100 response |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 389 | while True: |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 390 | skip = self.fp.readline().strip() |
| 391 | if not skip: |
| 392 | break |
| 393 | if self.debuglevel > 0: |
| 394 | print "header:", skip |
Tim Peters | c411dba | 2002-07-16 21:35:23 +0000 | [diff] [blame] | 395 | |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 396 | self.status = status |
| 397 | self.reason = reason.strip() |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 398 | if version == 'HTTP/1.0': |
| 399 | self.version = 10 |
Jeremy Hylton | 110941a | 2000-10-12 19:58:36 +0000 | [diff] [blame] | 400 | elif version.startswith('HTTP/1.'): |
Tim Peters | 07e99cb | 2001-01-14 23:47:14 +0000 | [diff] [blame] | 401 | self.version = 11 # use HTTP/1.1 code for HTTP/1.x where x>=1 |
Jeremy Hylton | 110941a | 2000-10-12 19:58:36 +0000 | [diff] [blame] | 402 | elif version == 'HTTP/0.9': |
| 403 | self.version = 9 |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 404 | else: |
| 405 | raise UnknownProtocol(version) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 406 | |
Jeremy Hylton | 110941a | 2000-10-12 19:58:36 +0000 | [diff] [blame] | 407 | if self.version == 9: |
Georg Brandl | 0aade9a | 2005-06-26 22:06:54 +0000 | [diff] [blame] | 408 | self.length = None |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 409 | self.chunked = 0 |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 410 | self.will_close = 1 |
Jeremy Hylton | 6d0a4c7 | 2002-07-07 16:51:37 +0000 | [diff] [blame] | 411 | self.msg = HTTPMessage(StringIO()) |
Jeremy Hylton | 110941a | 2000-10-12 19:58:36 +0000 | [diff] [blame] | 412 | return |
| 413 | |
Jeremy Hylton | 6d0a4c7 | 2002-07-07 16:51:37 +0000 | [diff] [blame] | 414 | self.msg = HTTPMessage(self.fp, 0) |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 415 | if self.debuglevel > 0: |
| 416 | for hdr in self.msg.headers: |
| 417 | print "header:", hdr, |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 418 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 419 | # don't let the msg keep an fp |
| 420 | self.msg.fp = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 421 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 422 | # are we using the chunked-style of transfer encoding? |
| 423 | tr_enc = self.msg.getheader('transfer-encoding') |
Jeremy Hylton | d229b3a | 2002-09-03 19:24:24 +0000 | [diff] [blame] | 424 | if tr_enc and tr_enc.lower() == "chunked": |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 425 | self.chunked = 1 |
| 426 | self.chunk_left = None |
| 427 | else: |
| 428 | self.chunked = 0 |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 429 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 430 | # will the connection close at the end of the response? |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 431 | self.will_close = self._check_close() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 432 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 433 | # do we have a Content-Length? |
| 434 | # NOTE: RFC 2616, S4.4, #3 says we ignore this if tr_enc is "chunked" |
| 435 | length = self.msg.getheader('content-length') |
| 436 | if length and not self.chunked: |
Jeremy Hylton | 30a8181 | 2000-09-14 20:34:27 +0000 | [diff] [blame] | 437 | try: |
| 438 | self.length = int(length) |
| 439 | except ValueError: |
| 440 | self.length = None |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 441 | else: |
| 442 | self.length = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 443 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 444 | # does the body have a fixed length? (of zero) |
Martin v. Löwis | 39a3178 | 2004-09-18 09:03:49 +0000 | [diff] [blame] | 445 | if (status == NO_CONTENT or status == NOT_MODIFIED or |
Jeremy Hylton | c1b2cb9 | 2003-05-05 16:13:58 +0000 | [diff] [blame] | 446 | 100 <= status < 200 or # 1xx codes |
| 447 | self._method == 'HEAD'): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 448 | self.length = 0 |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 449 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 450 | # if the connection remains open, and we aren't using chunked, and |
| 451 | # a content-length was not provided, then assume that the connection |
| 452 | # WILL close. |
| 453 | if not self.will_close and \ |
| 454 | not self.chunked and \ |
| 455 | self.length is None: |
| 456 | self.will_close = 1 |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 457 | |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 458 | def _check_close(self): |
Jeremy Hylton | 2c17825 | 2004-08-07 16:28:14 +0000 | [diff] [blame] | 459 | conn = self.msg.getheader('connection') |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 460 | if self.version == 11: |
| 461 | # An HTTP/1.1 proxy is assumed to stay open unless |
| 462 | # explicitly closed. |
| 463 | conn = self.msg.getheader('connection') |
Raymond Hettinger | bac788a | 2004-05-04 09:21:43 +0000 | [diff] [blame] | 464 | if conn and "close" in conn.lower(): |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 465 | return True |
| 466 | return False |
| 467 | |
Jeremy Hylton | 2c17825 | 2004-08-07 16:28:14 +0000 | [diff] [blame] | 468 | # Some HTTP/1.0 implementations have support for persistent |
| 469 | # connections, using rules different than HTTP/1.1. |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 470 | |
Georg Brandl | 26458c1 | 2007-12-08 10:56:39 +0000 | [diff] [blame] | 471 | # For older HTTP, Keep-Alive indicates persistent connection. |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 472 | if self.msg.getheader('keep-alive'): |
| 473 | return False |
Tim Peters | 77c06fb | 2002-11-24 02:35:35 +0000 | [diff] [blame] | 474 | |
Jeremy Hylton | 2c17825 | 2004-08-07 16:28:14 +0000 | [diff] [blame] | 475 | # At least Akamai returns a "Connection: Keep-Alive" header, |
| 476 | # which was supposed to be sent by the client. |
| 477 | if conn and "keep-alive" in conn.lower(): |
| 478 | return False |
| 479 | |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 480 | # Proxy-Connection is a netscape hack. |
| 481 | pconn = self.msg.getheader('proxy-connection') |
Raymond Hettinger | bac788a | 2004-05-04 09:21:43 +0000 | [diff] [blame] | 482 | if pconn and "keep-alive" in pconn.lower(): |
Jeremy Hylton | 22b3a49 | 2002-11-13 17:27:43 +0000 | [diff] [blame] | 483 | return False |
| 484 | |
| 485 | # otherwise, assume it will close |
| 486 | return True |
| 487 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 488 | def close(self): |
| 489 | if self.fp: |
| 490 | self.fp.close() |
| 491 | self.fp = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 492 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 493 | def isclosed(self): |
| 494 | # NOTE: it is possible that we will not ever call self.close(). This |
| 495 | # case occurs when will_close is TRUE, length is None, and we |
| 496 | # read up to the last byte, but NOT past it. |
| 497 | # |
| 498 | # IMPLIES: if will_close is FALSE, then self.close() will ALWAYS be |
| 499 | # called, meaning self.isclosed() is meaningful. |
| 500 | return self.fp is None |
| 501 | |
Jeremy Hylton | 2c17825 | 2004-08-07 16:28:14 +0000 | [diff] [blame] | 502 | # XXX It would be nice to have readline and __iter__ for this, too. |
| 503 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 504 | def read(self, amt=None): |
| 505 | if self.fp is None: |
| 506 | return '' |
| 507 | |
| 508 | if self.chunked: |
Jeremy Hylton | d4c472c | 2002-09-03 20:49:06 +0000 | [diff] [blame] | 509 | return self._read_chunked(amt) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 510 | |
Jeremy Hylton | d4c472c | 2002-09-03 20:49:06 +0000 | [diff] [blame] | 511 | if amt is None: |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 512 | # unbounded read |
Jeremy Hylton | def9d2a | 2004-11-07 16:13:49 +0000 | [diff] [blame] | 513 | if self.length is None: |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 514 | s = self.fp.read() |
| 515 | else: |
| 516 | s = self._safe_read(self.length) |
Jeremy Hylton | def9d2a | 2004-11-07 16:13:49 +0000 | [diff] [blame] | 517 | self.length = 0 |
Tim Peters | 07e99cb | 2001-01-14 23:47:14 +0000 | [diff] [blame] | 518 | self.close() # we read everything |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 519 | return s |
| 520 | |
| 521 | if self.length is not None: |
| 522 | if amt > self.length: |
| 523 | # clip the read to the "end of response" |
| 524 | amt = self.length |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 525 | |
| 526 | # we do not use _safe_read() here because this may be a .will_close |
| 527 | # connection, and the user is reading more bytes than will be provided |
| 528 | # (for example, reading in 1k chunks) |
| 529 | s = self.fp.read(amt) |
Jeremy Hylton | def9d2a | 2004-11-07 16:13:49 +0000 | [diff] [blame] | 530 | if self.length is not None: |
| 531 | self.length -= len(s) |
Facundo Batista | 7066590 | 2007-10-18 03:16:03 +0000 | [diff] [blame] | 532 | if not self.length: |
| 533 | self.close() |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 534 | return s |
| 535 | |
Jeremy Hylton | d4c472c | 2002-09-03 20:49:06 +0000 | [diff] [blame] | 536 | def _read_chunked(self, amt): |
| 537 | assert self.chunked != _UNKNOWN |
| 538 | chunk_left = self.chunk_left |
| 539 | value = '' |
| 540 | |
| 541 | # XXX This accumulates chunks by repeated string concatenation, |
| 542 | # which is not efficient as the number or size of chunks gets big. |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 543 | while True: |
Jeremy Hylton | d4c472c | 2002-09-03 20:49:06 +0000 | [diff] [blame] | 544 | if chunk_left is None: |
| 545 | line = self.fp.readline() |
| 546 | i = line.find(';') |
| 547 | if i >= 0: |
| 548 | line = line[:i] # strip chunk-extensions |
| 549 | chunk_left = int(line, 16) |
| 550 | if chunk_left == 0: |
| 551 | break |
| 552 | if amt is None: |
| 553 | value += self._safe_read(chunk_left) |
| 554 | elif amt < chunk_left: |
| 555 | value += self._safe_read(amt) |
| 556 | self.chunk_left = chunk_left - amt |
| 557 | return value |
| 558 | elif amt == chunk_left: |
| 559 | value += self._safe_read(amt) |
| 560 | self._safe_read(2) # toss the CRLF at the end of the chunk |
| 561 | self.chunk_left = None |
| 562 | return value |
| 563 | else: |
| 564 | value += self._safe_read(chunk_left) |
| 565 | amt -= chunk_left |
| 566 | |
| 567 | # we read the whole chunk, get another |
| 568 | self._safe_read(2) # toss the CRLF at the end of the chunk |
| 569 | chunk_left = None |
| 570 | |
| 571 | # read and discard trailer up to the CRLF terminator |
| 572 | ### note: we shouldn't have any trailers! |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 573 | while True: |
Jeremy Hylton | d4c472c | 2002-09-03 20:49:06 +0000 | [diff] [blame] | 574 | line = self.fp.readline() |
Martin v. Löwis | dad88dc | 2008-02-12 18:47:34 +0000 | [diff] [blame] | 575 | if not line: |
| 576 | # a vanishingly small number of sites EOF without |
| 577 | # sending the trailer |
| 578 | break |
Jeremy Hylton | d4c472c | 2002-09-03 20:49:06 +0000 | [diff] [blame] | 579 | if line == '\r\n': |
| 580 | break |
| 581 | |
| 582 | # we read everything; close the "file" |
Jeremy Hylton | d4c472c | 2002-09-03 20:49:06 +0000 | [diff] [blame] | 583 | self.close() |
| 584 | |
| 585 | return value |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 586 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 587 | def _safe_read(self, amt): |
| 588 | """Read the number of bytes requested, compensating for partial reads. |
| 589 | |
| 590 | Normally, we have a blocking socket, but a read() can be interrupted |
| 591 | by a signal (resulting in a partial read). |
| 592 | |
| 593 | Note that we cannot distinguish between EOF and an interrupt when zero |
| 594 | bytes have been read. IncompleteRead() will be raised in this |
| 595 | situation. |
| 596 | |
| 597 | This function should be used when <amt> bytes "should" be present for |
| 598 | reading. If the bytes are truly not available (due to EOF), then the |
| 599 | IncompleteRead exception can be used to detect the problem. |
| 600 | """ |
Georg Brandl | 80ba8e8 | 2005-09-29 20:16:07 +0000 | [diff] [blame] | 601 | s = [] |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 602 | while amt > 0: |
Georg Brandl | 80ba8e8 | 2005-09-29 20:16:07 +0000 | [diff] [blame] | 603 | chunk = self.fp.read(min(amt, MAXAMOUNT)) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 604 | if not chunk: |
| 605 | raise IncompleteRead(s) |
Georg Brandl | 80ba8e8 | 2005-09-29 20:16:07 +0000 | [diff] [blame] | 606 | s.append(chunk) |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 607 | amt -= len(chunk) |
Georg Brandl | 80ba8e8 | 2005-09-29 20:16:07 +0000 | [diff] [blame] | 608 | return ''.join(s) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 609 | |
| 610 | def getheader(self, name, default=None): |
| 611 | if self.msg is None: |
| 612 | raise ResponseNotReady() |
| 613 | return self.msg.getheader(name, default) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 614 | |
Martin v. Löwis | deacce2 | 2004-08-18 12:46:26 +0000 | [diff] [blame] | 615 | def getheaders(self): |
| 616 | """Return list of (header, value) tuples.""" |
| 617 | if self.msg is None: |
| 618 | raise ResponseNotReady() |
| 619 | return self.msg.items() |
| 620 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 621 | |
| 622 | class HTTPConnection: |
| 623 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 624 | _http_vsn = 11 |
| 625 | _http_vsn_str = 'HTTP/1.1' |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 626 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 627 | response_class = HTTPResponse |
| 628 | default_port = HTTP_PORT |
| 629 | auto_open = 1 |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 630 | debuglevel = 0 |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 631 | strict = 0 |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 632 | |
Facundo Batista | 07c78be | 2007-03-23 18:54:07 +0000 | [diff] [blame] | 633 | def __init__(self, host, port=None, strict=None, timeout=None): |
| 634 | self.timeout = timeout |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 635 | self.sock = None |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 636 | self._buffer = [] |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 637 | self.__response = None |
| 638 | self.__state = _CS_IDLE |
Jeremy Hylton | c1b2cb9 | 2003-05-05 16:13:58 +0000 | [diff] [blame] | 639 | self._method = None |
Tim Peters | c411dba | 2002-07-16 21:35:23 +0000 | [diff] [blame] | 640 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 641 | self._set_hostport(host, port) |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 642 | if strict is not None: |
| 643 | self.strict = strict |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 644 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 645 | def _set_hostport(self, host, port): |
| 646 | if port is None: |
Skip Montanaro | 10e6e0e | 2004-09-14 16:32:02 +0000 | [diff] [blame] | 647 | i = host.rfind(':') |
Skip Montanaro | cae14d2 | 2004-09-14 17:55:21 +0000 | [diff] [blame] | 648 | j = host.rfind(']') # ipv6 addresses have [...] |
| 649 | if i > j: |
Skip Montanaro | 9d38997 | 2002-03-24 16:53:50 +0000 | [diff] [blame] | 650 | try: |
| 651 | port = int(host[i+1:]) |
| 652 | except ValueError: |
Jeremy Hylton | fbd7994 | 2002-07-02 20:19:08 +0000 | [diff] [blame] | 653 | raise InvalidURL("nonnumeric port: '%s'" % host[i+1:]) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 654 | host = host[:i] |
| 655 | else: |
| 656 | port = self.default_port |
Raymond Hettinger | 4d03791 | 2004-10-14 15:23:38 +0000 | [diff] [blame] | 657 | if host and host[0] == '[' and host[-1] == ']': |
Brett Cannon | 0a1af4a | 2004-09-15 23:26:23 +0000 | [diff] [blame] | 658 | host = host[1:-1] |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 659 | self.host = host |
| 660 | self.port = port |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 661 | |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 662 | def set_debuglevel(self, level): |
| 663 | self.debuglevel = level |
| 664 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 665 | def connect(self): |
| 666 | """Connect to the host and port specified in __init__.""" |
Georg Brandl | f03facf | 2007-03-26 20:28:28 +0000 | [diff] [blame] | 667 | self.sock = socket.create_connection((self.host,self.port), |
| 668 | self.timeout) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 669 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 670 | def close(self): |
| 671 | """Close the connection to the HTTP server.""" |
| 672 | if self.sock: |
Tim Peters | 07e99cb | 2001-01-14 23:47:14 +0000 | [diff] [blame] | 673 | self.sock.close() # close it manually... there may be other refs |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 674 | self.sock = None |
| 675 | if self.__response: |
| 676 | self.__response.close() |
| 677 | self.__response = None |
| 678 | self.__state = _CS_IDLE |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 679 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 680 | def send(self, str): |
| 681 | """Send `str' to the server.""" |
| 682 | if self.sock is None: |
| 683 | if self.auto_open: |
| 684 | self.connect() |
| 685 | else: |
| 686 | raise NotConnected() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 687 | |
Jeremy Hylton | e3252ec | 2002-07-16 21:41:43 +0000 | [diff] [blame] | 688 | # send the data to the server. if we get a broken pipe, then close |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 689 | # the socket. we want to reconnect when somebody tries to send again. |
| 690 | # |
| 691 | # NOTE: we DO propagate the error, though, because we cannot simply |
| 692 | # ignore the error... the caller will know if they can retry. |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 693 | if self.debuglevel > 0: |
| 694 | print "send:", repr(str) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 695 | try: |
Martin v. Löwis | 040a927 | 2006-11-12 10:32:47 +0000 | [diff] [blame] | 696 | blocksize=8192 |
| 697 | if hasattr(str,'read') : |
| 698 | if self.debuglevel > 0: print "sendIng a read()able" |
| 699 | data=str.read(blocksize) |
| 700 | while data: |
| 701 | self.sock.sendall(data) |
| 702 | data=str.read(blocksize) |
| 703 | else: |
| 704 | self.sock.sendall(str) |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 705 | except socket.error, v: |
Tim Peters | 07e99cb | 2001-01-14 23:47:14 +0000 | [diff] [blame] | 706 | if v[0] == 32: # Broken pipe |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 707 | self.close() |
| 708 | raise |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 709 | |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 710 | def _output(self, s): |
| 711 | """Add a line of output to the current request buffer. |
Tim Peters | 469cdad | 2002-08-08 20:19:19 +0000 | [diff] [blame] | 712 | |
Jeremy Hylton | e3252ec | 2002-07-16 21:41:43 +0000 | [diff] [blame] | 713 | Assumes that the line does *not* end with \\r\\n. |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 714 | """ |
| 715 | self._buffer.append(s) |
| 716 | |
| 717 | def _send_output(self): |
| 718 | """Send the currently buffered request and clear the buffer. |
| 719 | |
Jeremy Hylton | e3252ec | 2002-07-16 21:41:43 +0000 | [diff] [blame] | 720 | Appends an extra \\r\\n to the buffer. |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 721 | """ |
| 722 | self._buffer.extend(("", "")) |
| 723 | msg = "\r\n".join(self._buffer) |
| 724 | del self._buffer[:] |
| 725 | self.send(msg) |
| 726 | |
Martin v. Löwis | af7dc8d | 2003-11-19 19:51:55 +0000 | [diff] [blame] | 727 | def putrequest(self, method, url, skip_host=0, skip_accept_encoding=0): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 728 | """Send a request to the server. |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 729 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 730 | `method' specifies an HTTP request method, e.g. 'GET'. |
| 731 | `url' specifies the object being requested, e.g. '/index.html'. |
Martin v. Löwis | af7dc8d | 2003-11-19 19:51:55 +0000 | [diff] [blame] | 732 | `skip_host' if True does not add automatically a 'Host:' header |
| 733 | `skip_accept_encoding' if True does not add automatically an |
| 734 | 'Accept-Encoding:' header |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 735 | """ |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 736 | |
Greg Stein | 616a58d | 2003-06-24 06:35:19 +0000 | [diff] [blame] | 737 | # if a prior response has been completed, then forget about it. |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 738 | if self.__response and self.__response.isclosed(): |
| 739 | self.__response = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 740 | |
Tim Peters | 58eb11c | 2004-01-18 20:29:55 +0000 | [diff] [blame] | 741 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 742 | # in certain cases, we cannot issue another request on this connection. |
| 743 | # this occurs when: |
| 744 | # 1) we are in the process of sending a request. (_CS_REQ_STARTED) |
| 745 | # 2) a response to a previous request has signalled that it is going |
| 746 | # to close the connection upon completion. |
| 747 | # 3) the headers for the previous response have not been read, thus |
| 748 | # we cannot determine whether point (2) is true. (_CS_REQ_SENT) |
| 749 | # |
| 750 | # if there is no prior response, then we can request at will. |
| 751 | # |
| 752 | # if point (2) is true, then we will have passed the socket to the |
| 753 | # response (effectively meaning, "there is no prior response"), and |
| 754 | # will open a new one when a new request is made. |
| 755 | # |
| 756 | # Note: if a prior response exists, then we *can* start a new request. |
| 757 | # We are not allowed to begin fetching the response to this new |
| 758 | # request, however, until that prior response is complete. |
| 759 | # |
| 760 | if self.__state == _CS_IDLE: |
| 761 | self.__state = _CS_REQ_STARTED |
| 762 | else: |
| 763 | raise CannotSendRequest() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 764 | |
Jeremy Hylton | c1b2cb9 | 2003-05-05 16:13:58 +0000 | [diff] [blame] | 765 | # Save the method we use, we need it later in the response phase |
| 766 | self._method = method |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 767 | if not url: |
| 768 | url = '/' |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 769 | str = '%s %s %s' % (method, url, self._http_vsn_str) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 770 | |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 771 | self._output(str) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 772 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 773 | if self._http_vsn == 11: |
| 774 | # Issue some standard headers for better HTTP/1.1 compliance |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 775 | |
Jeremy Hylton | 3921ff6 | 2002-03-09 06:07:23 +0000 | [diff] [blame] | 776 | if not skip_host: |
| 777 | # this header is issued *only* for HTTP/1.1 |
| 778 | # connections. more specifically, this means it is |
| 779 | # only issued when the client uses the new |
| 780 | # HTTPConnection() class. backwards-compat clients |
| 781 | # will be using HTTP/1.0 and those clients may be |
| 782 | # issuing this header themselves. we should NOT issue |
| 783 | # it twice; some web servers (such as Apache) barf |
| 784 | # when they see two Host: headers |
Guido van Rossum | f6922aa | 2001-01-14 21:03:01 +0000 | [diff] [blame] | 785 | |
Jeremy Hylton | 3921ff6 | 2002-03-09 06:07:23 +0000 | [diff] [blame] | 786 | # If we need a non-standard port,include it in the |
| 787 | # header. If the request is going through a proxy, |
| 788 | # but the host of the actual URL, not the host of the |
| 789 | # proxy. |
Jeremy Hylton | 8acf1e0 | 2002-03-08 19:35:51 +0000 | [diff] [blame] | 790 | |
Jeremy Hylton | 3921ff6 | 2002-03-09 06:07:23 +0000 | [diff] [blame] | 791 | netloc = '' |
| 792 | if url.startswith('http'): |
| 793 | nil, netloc, nil, nil, nil = urlsplit(url) |
| 794 | |
| 795 | if netloc: |
Georg Brandl | a2ac2ef | 2006-05-03 18:03:22 +0000 | [diff] [blame] | 796 | try: |
| 797 | netloc_enc = netloc.encode("ascii") |
| 798 | except UnicodeEncodeError: |
| 799 | netloc_enc = netloc.encode("idna") |
| 800 | self.putheader('Host', netloc_enc) |
Jeremy Hylton | 3921ff6 | 2002-03-09 06:07:23 +0000 | [diff] [blame] | 801 | else: |
Georg Brandl | a2ac2ef | 2006-05-03 18:03:22 +0000 | [diff] [blame] | 802 | try: |
| 803 | host_enc = self.host.encode("ascii") |
| 804 | except UnicodeEncodeError: |
| 805 | host_enc = self.host.encode("idna") |
| 806 | if self.port == HTTP_PORT: |
| 807 | self.putheader('Host', host_enc) |
| 808 | else: |
| 809 | self.putheader('Host', "%s:%s" % (host_enc, self.port)) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 810 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 811 | # note: we are assuming that clients will not attempt to set these |
| 812 | # headers since *this* library must deal with the |
| 813 | # consequences. this also means that when the supporting |
| 814 | # libraries are updated to recognize other forms, then this |
| 815 | # code should be changed (removed or updated). |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 816 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 817 | # we only want a Content-Encoding of "identity" since we don't |
| 818 | # support encodings such as x-gzip or x-deflate. |
Martin v. Löwis | af7dc8d | 2003-11-19 19:51:55 +0000 | [diff] [blame] | 819 | if not skip_accept_encoding: |
| 820 | self.putheader('Accept-Encoding', 'identity') |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 821 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 822 | # we can accept "chunked" Transfer-Encodings, but no others |
| 823 | # NOTE: no TE header implies *only* "chunked" |
| 824 | #self.putheader('TE', 'chunked') |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 825 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 826 | # if TE is supplied in the header, then it must appear in a |
| 827 | # Connection header. |
| 828 | #self.putheader('Connection', 'TE') |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 829 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 830 | else: |
| 831 | # For HTTP/1.0, the server will assume "not chunked" |
| 832 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 833 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 834 | def putheader(self, header, value): |
| 835 | """Send a request header line to the server. |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 836 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 837 | For example: h.putheader('Accept', 'text/html') |
| 838 | """ |
| 839 | if self.__state != _CS_REQ_STARTED: |
| 840 | raise CannotSendHeader() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 841 | |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 842 | str = '%s: %s' % (header, value) |
| 843 | self._output(str) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 844 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 845 | def endheaders(self): |
| 846 | """Indicate that the last header line has been sent to the server.""" |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 847 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 848 | if self.__state == _CS_REQ_STARTED: |
| 849 | self.__state = _CS_REQ_SENT |
| 850 | else: |
| 851 | raise CannotSendHeader() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 852 | |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 853 | self._send_output() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 854 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 855 | def request(self, method, url, body=None, headers={}): |
| 856 | """Send a complete request to the server.""" |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 857 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 858 | try: |
| 859 | self._send_request(method, url, body, headers) |
| 860 | except socket.error, v: |
| 861 | # trap 'Broken pipe' if we're allowed to automatically reconnect |
| 862 | if v[0] != 32 or not self.auto_open: |
| 863 | raise |
| 864 | # try one more time |
| 865 | self._send_request(method, url, body, headers) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 866 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 867 | def _send_request(self, method, url, body, headers): |
Jeremy Hylton | 2c17825 | 2004-08-07 16:28:14 +0000 | [diff] [blame] | 868 | # honour explicitly requested Host: and Accept-Encoding headers |
| 869 | header_names = dict.fromkeys([k.lower() for k in headers]) |
| 870 | skips = {} |
| 871 | if 'host' in header_names: |
| 872 | skips['skip_host'] = 1 |
| 873 | if 'accept-encoding' in header_names: |
| 874 | skips['skip_accept_encoding'] = 1 |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 875 | |
Jeremy Hylton | 2c17825 | 2004-08-07 16:28:14 +0000 | [diff] [blame] | 876 | self.putrequest(method, url, **skips) |
| 877 | |
| 878 | if body and ('content-length' not in header_names): |
Martin v. Löwis | 040a927 | 2006-11-12 10:32:47 +0000 | [diff] [blame] | 879 | thelen=None |
| 880 | try: |
| 881 | thelen=str(len(body)) |
| 882 | except TypeError, te: |
| 883 | # If this is a file-like object, try to |
| 884 | # fstat its file descriptor |
| 885 | import os |
| 886 | try: |
| 887 | thelen = str(os.fstat(body.fileno()).st_size) |
| 888 | except (AttributeError, OSError): |
| 889 | # Don't send a length if this failed |
| 890 | if self.debuglevel > 0: print "Cannot stat!!" |
Tim Peters | f733abb | 2007-01-30 03:03:46 +0000 | [diff] [blame] | 891 | |
Martin v. Löwis | 040a927 | 2006-11-12 10:32:47 +0000 | [diff] [blame] | 892 | if thelen is not None: |
| 893 | self.putheader('Content-Length',thelen) |
Raymond Hettinger | b2e0b92 | 2003-02-26 22:45:18 +0000 | [diff] [blame] | 894 | for hdr, value in headers.iteritems(): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 895 | self.putheader(hdr, value) |
| 896 | self.endheaders() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 897 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 898 | if body: |
| 899 | self.send(body) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 900 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 901 | def getresponse(self): |
| 902 | "Get the response from the server." |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 903 | |
Greg Stein | 616a58d | 2003-06-24 06:35:19 +0000 | [diff] [blame] | 904 | # if a prior response has been completed, then forget about it. |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 905 | if self.__response and self.__response.isclosed(): |
| 906 | self.__response = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 907 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 908 | # |
| 909 | # if a prior response exists, then it must be completed (otherwise, we |
| 910 | # cannot read this response's header to determine the connection-close |
| 911 | # behavior) |
| 912 | # |
| 913 | # note: if a prior response existed, but was connection-close, then the |
| 914 | # socket and response were made independent of this HTTPConnection |
| 915 | # object since a new request requires that we open a whole new |
| 916 | # connection |
| 917 | # |
| 918 | # this means the prior response had one of two states: |
| 919 | # 1) will_close: this connection was reset and the prior socket and |
| 920 | # response operate independently |
| 921 | # 2) persistent: the response was retained and we await its |
| 922 | # isclosed() status to become true. |
| 923 | # |
| 924 | if self.__state != _CS_REQ_SENT or self.__response: |
| 925 | raise ResponseNotReady() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 926 | |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 927 | if self.debuglevel > 0: |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 928 | response = self.response_class(self.sock, self.debuglevel, |
Tim Peters | c2659cf | 2003-05-12 20:19:37 +0000 | [diff] [blame] | 929 | strict=self.strict, |
Jeremy Hylton | c1b2cb9 | 2003-05-05 16:13:58 +0000 | [diff] [blame] | 930 | method=self._method) |
Jeremy Hylton | 30f8674 | 2000-09-18 22:50:38 +0000 | [diff] [blame] | 931 | else: |
Jeremy Hylton | c1b2cb9 | 2003-05-05 16:13:58 +0000 | [diff] [blame] | 932 | response = self.response_class(self.sock, strict=self.strict, |
| 933 | method=self._method) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 934 | |
Jeremy Hylton | 39c0380 | 2002-07-12 14:04:09 +0000 | [diff] [blame] | 935 | response.begin() |
Jeremy Hylton | be4fcf1 | 2002-06-28 22:38:01 +0000 | [diff] [blame] | 936 | assert response.will_close != _UNKNOWN |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 937 | self.__state = _CS_IDLE |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 938 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 939 | if response.will_close: |
Martin v. Löwis | 0af3388 | 2007-03-23 13:27:15 +0000 | [diff] [blame] | 940 | # this effectively passes the connection to the response |
| 941 | self.close() |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 942 | else: |
| 943 | # remember this, so we can tell when it is complete |
| 944 | self.__response = response |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 945 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 946 | return response |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 947 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 948 | |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 949 | class HTTP: |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 950 | "Compatibility class with httplib.py from 1.5." |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 951 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 952 | _http_vsn = 10 |
| 953 | _http_vsn_str = 'HTTP/1.0' |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 954 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 955 | debuglevel = 0 |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 956 | |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 957 | _connection_class = HTTPConnection |
| 958 | |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 959 | def __init__(self, host='', port=None, strict=None): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 960 | "Provide a default host, since the superclass requires one." |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 961 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 962 | # some joker passed 0 explicitly, meaning default port |
| 963 | if port == 0: |
| 964 | port = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 965 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 966 | # Note that we may pass an empty string as the host; this will throw |
| 967 | # an error when we attempt to connect. Presumably, the client code |
| 968 | # will call connect before then, with a proper host. |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 969 | self._setup(self._connection_class(host, port, strict)) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 970 | |
Greg Stein | 81937a4 | 2001-08-18 09:20:23 +0000 | [diff] [blame] | 971 | def _setup(self, conn): |
| 972 | self._conn = conn |
| 973 | |
| 974 | # set up delegation to flesh out interface |
| 975 | self.send = conn.send |
| 976 | self.putrequest = conn.putrequest |
| 977 | self.endheaders = conn.endheaders |
| 978 | self.set_debuglevel = conn.set_debuglevel |
| 979 | |
| 980 | conn._http_vsn = self._http_vsn |
| 981 | conn._http_vsn_str = self._http_vsn_str |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 982 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 983 | self.file = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 984 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 985 | def connect(self, host=None, port=None): |
| 986 | "Accept arguments to set the host/port, since the superclass doesn't." |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 987 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 988 | if host is not None: |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 989 | self._conn._set_hostport(host, port) |
| 990 | self._conn.connect() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 991 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 992 | def getfile(self): |
| 993 | "Provide a getfile, since the superclass' does not use this concept." |
| 994 | return self.file |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 995 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 996 | def putheader(self, header, *values): |
| 997 | "The superclass allows only one value argument." |
Guido van Rossum | 34735a6 | 2000-12-15 15:09:42 +0000 | [diff] [blame] | 998 | self._conn.putheader(header, '\r\n\t'.join(values)) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 999 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1000 | def getreply(self): |
| 1001 | """Compat definition since superclass does not define it. |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1002 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1003 | Returns a tuple consisting of: |
| 1004 | - server status code (e.g. '200' if all goes well) |
| 1005 | - server "reason" corresponding to status code |
| 1006 | - any RFC822 headers in the response from the server |
| 1007 | """ |
| 1008 | try: |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 1009 | response = self._conn.getresponse() |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1010 | except BadStatusLine, e: |
| 1011 | ### hmm. if getresponse() ever closes the socket on a bad request, |
| 1012 | ### then we are going to have problems with self.sock |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1013 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1014 | ### should we keep this behavior? do people use it? |
| 1015 | # keep the socket open (as a file), and return it |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 1016 | self.file = self._conn.sock.makefile('rb', 0) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1017 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1018 | # close our socket -- we want to restart after any protocol error |
| 1019 | self.close() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1020 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1021 | self.headers = None |
| 1022 | return -1, e.line, None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1023 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1024 | self.headers = response.msg |
| 1025 | self.file = response.fp |
| 1026 | return response.status, response.reason, response.msg |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1027 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1028 | def close(self): |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 1029 | self._conn.close() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1030 | |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1031 | # note that self.file == response.fp, which gets closed by the |
| 1032 | # superclass. just clear the object ref here. |
| 1033 | ### hmm. messy. if status==-1, then self.file is owned by us. |
| 1034 | ### well... we aren't explicitly closing, but losing this ref will |
| 1035 | ### do it |
| 1036 | self.file = None |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1037 | |
Bill Janssen | 426ea0a | 2007-08-29 22:35:05 +0000 | [diff] [blame] | 1038 | try: |
| 1039 | import ssl |
| 1040 | except ImportError: |
| 1041 | pass |
| 1042 | else: |
| 1043 | class HTTPSConnection(HTTPConnection): |
| 1044 | "This class allows communication via SSL." |
| 1045 | |
| 1046 | default_port = HTTPS_PORT |
| 1047 | |
| 1048 | def __init__(self, host, port=None, key_file=None, cert_file=None, |
| 1049 | strict=None, timeout=None): |
| 1050 | HTTPConnection.__init__(self, host, port, strict, timeout) |
| 1051 | self.key_file = key_file |
| 1052 | self.cert_file = cert_file |
| 1053 | |
| 1054 | def connect(self): |
| 1055 | "Connect to a host on a given (SSL) port." |
| 1056 | |
| 1057 | sock = socket.create_connection((self.host, self.port), self.timeout) |
Bill Janssen | 98d19da | 2007-09-10 21:51:02 +0000 | [diff] [blame] | 1058 | self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file) |
Bill Janssen | 426ea0a | 2007-08-29 22:35:05 +0000 | [diff] [blame] | 1059 | |
Thomas Wouters | a6900e8 | 2007-08-30 21:54:39 +0000 | [diff] [blame] | 1060 | __all__.append("HTTPSConnection") |
Bill Janssen | 426ea0a | 2007-08-29 22:35:05 +0000 | [diff] [blame] | 1061 | |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 1062 | class HTTPS(HTTP): |
| 1063 | """Compatibility with 1.5 httplib interface |
| 1064 | |
| 1065 | Python 1.5.2 did not have an HTTPS class, but it defined an |
| 1066 | interface for sending http requests that is also useful for |
Tim Peters | 5ceadc8 | 2001-01-13 19:16:21 +0000 | [diff] [blame] | 1067 | https. |
Jeremy Hylton | 29b8d5a | 2000-08-01 17:33:32 +0000 | [diff] [blame] | 1068 | """ |
| 1069 | |
Martin v. Löwis | d7bf974 | 2000-09-21 22:09:47 +0000 | [diff] [blame] | 1070 | _connection_class = HTTPSConnection |
Tim Peters | 5ceadc8 | 2001-01-13 19:16:21 +0000 | [diff] [blame] | 1071 | |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1072 | def __init__(self, host='', port=None, key_file=None, cert_file=None, |
| 1073 | strict=None): |
Greg Stein | 81937a4 | 2001-08-18 09:20:23 +0000 | [diff] [blame] | 1074 | # provide a default host, pass the X509 cert info |
| 1075 | |
| 1076 | # urf. compensate for bad input. |
| 1077 | if port == 0: |
| 1078 | port = None |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1079 | self._setup(self._connection_class(host, port, key_file, |
| 1080 | cert_file, strict)) |
Greg Stein | 81937a4 | 2001-08-18 09:20:23 +0000 | [diff] [blame] | 1081 | |
| 1082 | # we never actually use these for anything, but we keep them |
| 1083 | # here for compatibility with post-1.5.2 CVS. |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1084 | self.key_file = key_file |
| 1085 | self.cert_file = cert_file |
Greg Stein | 81937a4 | 2001-08-18 09:20:23 +0000 | [diff] [blame] | 1086 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1087 | |
Bill Janssen | 426ea0a | 2007-08-29 22:35:05 +0000 | [diff] [blame] | 1088 | def FakeSocket (sock, sslobj): |
Bill Janssen | c459264 | 2007-08-31 19:02:23 +0000 | [diff] [blame] | 1089 | warnings.warn("FakeSocket is deprecated, and won't be in 3.x. " + |
Bill Janssen | 98d19da | 2007-09-10 21:51:02 +0000 | [diff] [blame] | 1090 | "Use the result of ssl.wrap_socket() directly instead.", |
Bill Janssen | c459264 | 2007-08-31 19:02:23 +0000 | [diff] [blame] | 1091 | DeprecationWarning, stacklevel=2) |
Bill Janssen | 426ea0a | 2007-08-29 22:35:05 +0000 | [diff] [blame] | 1092 | return sslobj |
| 1093 | |
| 1094 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1095 | class HTTPException(Exception): |
Jeremy Hylton | 12f4f35 | 2002-07-06 18:55:01 +0000 | [diff] [blame] | 1096 | # Subclasses that define an __init__ must call Exception.__init__ |
| 1097 | # or define self.args. Otherwise, str() will fail. |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1098 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1099 | |
| 1100 | class NotConnected(HTTPException): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1101 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1102 | |
Skip Montanaro | 9d38997 | 2002-03-24 16:53:50 +0000 | [diff] [blame] | 1103 | class InvalidURL(HTTPException): |
| 1104 | pass |
| 1105 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1106 | class UnknownProtocol(HTTPException): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1107 | def __init__(self, version): |
Jeremy Hylton | 12f4f35 | 2002-07-06 18:55:01 +0000 | [diff] [blame] | 1108 | self.args = version, |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1109 | self.version = version |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1110 | |
| 1111 | class UnknownTransferEncoding(HTTPException): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1112 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1113 | |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1114 | class UnimplementedFileMode(HTTPException): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1115 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1116 | |
| 1117 | class IncompleteRead(HTTPException): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1118 | def __init__(self, partial): |
Jeremy Hylton | 12f4f35 | 2002-07-06 18:55:01 +0000 | [diff] [blame] | 1119 | self.args = partial, |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1120 | self.partial = partial |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1121 | |
| 1122 | class ImproperConnectionState(HTTPException): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1123 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1124 | |
| 1125 | class CannotSendRequest(ImproperConnectionState): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1126 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1127 | |
| 1128 | class CannotSendHeader(ImproperConnectionState): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1129 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1130 | |
| 1131 | class ResponseNotReady(ImproperConnectionState): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1132 | pass |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1133 | |
| 1134 | class BadStatusLine(HTTPException): |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1135 | def __init__(self, line): |
Jeremy Hylton | 12f4f35 | 2002-07-06 18:55:01 +0000 | [diff] [blame] | 1136 | self.args = line, |
Greg Stein | dd6eefb | 2000-07-18 09:09:48 +0000 | [diff] [blame] | 1137 | self.line = line |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1138 | |
| 1139 | # for backwards compatibility |
| 1140 | error = HTTPException |
| 1141 | |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1142 | class LineAndFileWrapper: |
| 1143 | """A limited file-like object for HTTP/0.9 responses.""" |
| 1144 | |
| 1145 | # The status-line parsing code calls readline(), which normally |
| 1146 | # get the HTTP status line. For a 0.9 response, however, this is |
| 1147 | # actually the first line of the body! Clients need to get a |
| 1148 | # readable file object that contains that line. |
| 1149 | |
| 1150 | def __init__(self, line, file): |
| 1151 | self._line = line |
| 1152 | self._file = file |
| 1153 | self._line_consumed = 0 |
| 1154 | self._line_offset = 0 |
| 1155 | self._line_left = len(line) |
| 1156 | |
| 1157 | def __getattr__(self, attr): |
| 1158 | return getattr(self._file, attr) |
| 1159 | |
| 1160 | def _done(self): |
| 1161 | # called when the last byte is read from the line. After the |
| 1162 | # call, all read methods are delegated to the underlying file |
Skip Montanaro | 74b9a7a | 2003-02-25 17:48:15 +0000 | [diff] [blame] | 1163 | # object. |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1164 | self._line_consumed = 1 |
| 1165 | self.read = self._file.read |
| 1166 | self.readline = self._file.readline |
| 1167 | self.readlines = self._file.readlines |
| 1168 | |
| 1169 | def read(self, amt=None): |
Hye-Shik Chang | 39aef79 | 2004-06-05 13:30:56 +0000 | [diff] [blame] | 1170 | if self._line_consumed: |
| 1171 | return self._file.read(amt) |
| 1172 | assert self._line_left |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1173 | if amt is None or amt > self._line_left: |
| 1174 | s = self._line[self._line_offset:] |
| 1175 | self._done() |
| 1176 | if amt is None: |
| 1177 | return s + self._file.read() |
| 1178 | else: |
Tim Peters | c411dba | 2002-07-16 21:35:23 +0000 | [diff] [blame] | 1179 | return s + self._file.read(amt - len(s)) |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1180 | else: |
| 1181 | assert amt <= self._line_left |
| 1182 | i = self._line_offset |
| 1183 | j = i + amt |
| 1184 | s = self._line[i:j] |
| 1185 | self._line_offset = j |
| 1186 | self._line_left -= amt |
| 1187 | if self._line_left == 0: |
| 1188 | self._done() |
| 1189 | return s |
Tim Peters | c411dba | 2002-07-16 21:35:23 +0000 | [diff] [blame] | 1190 | |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1191 | def readline(self): |
Hye-Shik Chang | 39aef79 | 2004-06-05 13:30:56 +0000 | [diff] [blame] | 1192 | if self._line_consumed: |
| 1193 | return self._file.readline() |
| 1194 | assert self._line_left |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1195 | s = self._line[self._line_offset:] |
| 1196 | self._done() |
| 1197 | return s |
| 1198 | |
| 1199 | def readlines(self, size=None): |
Hye-Shik Chang | 39aef79 | 2004-06-05 13:30:56 +0000 | [diff] [blame] | 1200 | if self._line_consumed: |
| 1201 | return self._file.readlines(size) |
| 1202 | assert self._line_left |
Jeremy Hylton | d46aa37 | 2002-07-06 18:48:07 +0000 | [diff] [blame] | 1203 | L = [self._line[self._line_offset:]] |
| 1204 | self._done() |
| 1205 | if size is None: |
| 1206 | return L + self._file.readlines() |
| 1207 | else: |
| 1208 | return L + self._file.readlines(size) |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1209 | |
Guido van Rossum | 23acc95 | 1994-02-21 16:36:04 +0000 | [diff] [blame] | 1210 | def test(): |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 1211 | """Test this module. |
| 1212 | |
Jeremy Hylton | 29d27ac | 2002-07-09 21:22:36 +0000 | [diff] [blame] | 1213 | A hodge podge of tests collected here, because they have too many |
| 1214 | external dependencies for the regular test suite. |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 1215 | """ |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1216 | |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 1217 | import sys |
| 1218 | import getopt |
| 1219 | opts, args = getopt.getopt(sys.argv[1:], 'd') |
| 1220 | dl = 0 |
| 1221 | for o, a in opts: |
| 1222 | if o == '-d': dl = dl + 1 |
| 1223 | host = 'www.python.org' |
| 1224 | selector = '/' |
| 1225 | if args[0:]: host = args[0] |
| 1226 | if args[1:]: selector = args[1] |
| 1227 | h = HTTP() |
| 1228 | h.set_debuglevel(dl) |
| 1229 | h.connect(host) |
| 1230 | h.putrequest('GET', selector) |
| 1231 | h.endheaders() |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1232 | status, reason, headers = h.getreply() |
| 1233 | print 'status =', status |
| 1234 | print 'reason =', reason |
Jeremy Hylton | 29d27ac | 2002-07-09 21:22:36 +0000 | [diff] [blame] | 1235 | print "read", len(h.getfile().read()) |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 1236 | print |
| 1237 | if headers: |
Guido van Rossum | 34735a6 | 2000-12-15 15:09:42 +0000 | [diff] [blame] | 1238 | for header in headers.headers: print header.strip() |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 1239 | print |
Greg Stein | 5e0fa40 | 2000-06-26 08:28:01 +0000 | [diff] [blame] | 1240 | |
Jeremy Hylton | 8acf1e0 | 2002-03-08 19:35:51 +0000 | [diff] [blame] | 1241 | # minimal test that code to extract host from url works |
| 1242 | class HTTP11(HTTP): |
| 1243 | _http_vsn = 11 |
| 1244 | _http_vsn_str = 'HTTP/1.1' |
| 1245 | |
| 1246 | h = HTTP11('www.python.org') |
| 1247 | h.putrequest('GET', 'http://www.python.org/~jeremy/') |
| 1248 | h.endheaders() |
| 1249 | h.getreply() |
| 1250 | h.close() |
| 1251 | |
Bill Janssen | 426ea0a | 2007-08-29 22:35:05 +0000 | [diff] [blame] | 1252 | try: |
| 1253 | import ssl |
| 1254 | except ImportError: |
| 1255 | pass |
| 1256 | else: |
Tim Peters | c411dba | 2002-07-16 21:35:23 +0000 | [diff] [blame] | 1257 | |
Jeremy Hylton | 29d27ac | 2002-07-09 21:22:36 +0000 | [diff] [blame] | 1258 | for host, selector in (('sourceforge.net', '/projects/python'), |
Jeremy Hylton | 29d27ac | 2002-07-09 21:22:36 +0000 | [diff] [blame] | 1259 | ): |
| 1260 | print "https://%s%s" % (host, selector) |
| 1261 | hs = HTTPS() |
Jeremy Hylton | 8531b1b | 2002-07-16 21:21:11 +0000 | [diff] [blame] | 1262 | hs.set_debuglevel(dl) |
Jeremy Hylton | 29d27ac | 2002-07-09 21:22:36 +0000 | [diff] [blame] | 1263 | hs.connect(host) |
| 1264 | hs.putrequest('GET', selector) |
| 1265 | hs.endheaders() |
| 1266 | status, reason, headers = hs.getreply() |
| 1267 | print 'status =', status |
| 1268 | print 'reason =', reason |
| 1269 | print "read", len(hs.getfile().read()) |
| 1270 | print |
| 1271 | if headers: |
| 1272 | for header in headers.headers: print header.strip() |
| 1273 | print |
Guido van Rossum | 23acc95 | 1994-02-21 16:36:04 +0000 | [diff] [blame] | 1274 | |
Guido van Rossum | 23acc95 | 1994-02-21 16:36:04 +0000 | [diff] [blame] | 1275 | if __name__ == '__main__': |
Guido van Rossum | 41999c1 | 1997-12-09 00:12:23 +0000 | [diff] [blame] | 1276 | test() |