/usr/share/pyshared/mod_python/apache.py is in libapache2-mod-python 3.3.1-9ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 | # vim: set sw=4 expandtab :
#
# Copyright 2004 Apache Software Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you
# may not use this file except in compliance with the License. You
# may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing
# permissions and limitations under the License.
#
# Originally developed by Gregory Trubetskoy.
#
# $Id: apache.py 468216 2006-10-27 00:54:12Z grahamd $
import sys
import traceback
import time
import os
import pdb
import stat
import imp
import types
import cgi
import _apache
try:
import threading
except:
import dummy_threading as threading
# Cache for values of PythonPath that have been seen already.
_path_cache = {}
_path_cache_lock = threading.Lock()
_result_warning = """Handler has returned result or raised SERVER_RETURN
exception with argument having non integer type. Type of value returned
was %s, whereas expected """ + str(types.IntType) + "."
class CallBack:
"""
A generic callback object.
"""
class HStack:
"""
The actual stack string lives in the request object so
it can be manipulated by both apache.py and mod_python.c
"""
def __init__(self, req):
self.req = req
def pop(self):
handlers = self.req.hstack.split()
if not handlers:
return None
else:
self.req.hstack = " ".join(handlers[1:])
return handlers[0]
def ConnectionDispatch(self, conn):
# config
config = conn.base_server.get_config()
debug = int(config.get("PythonDebug", 0))
try:
handler = conn.hlist.handler
# split module::handler
l = handler.split('::', 1)
module_name = l[0]
if len(l) == 1:
# no oject, provide default
object_str = "connectionhandler"
else:
object_str = l[1]
# evaluate pythonpath and set sys.path to
# resulting value if not already done
if config.has_key("PythonPath"):
_path_cache_lock.acquire()
try:
pathstring = config["PythonPath"]
if not _path_cache.has_key(pathstring):
newpath = eval(pathstring)
_path_cache[pathstring] = None
sys.path[:] = newpath
finally:
_path_cache_lock.release()
# import module
module = import_module(module_name,
autoreload=int(config.get("PythonAutoReload", 1)),
log=debug)
# find the object
object = resolve_object(module, object_str,
arg=conn, silent=0)
# Only permit debugging using pdb if Apache has
# actually been started in single process mode.
pdb_debug = int(config.get("PythonEnablePdb", "0"))
one_process = exists_config_define("ONE_PROCESS")
if pdb_debug and one_process:
# Don't use pdb.runcall() as it results in
# a bogus 'None' response when pdb session
# is quit. With this code the exception
# marking that the session has been quit is
# propogated back up and it is obvious in
# the error message what actually occurred.
debugger = pdb.Pdb()
debugger.reset()
sys.settrace(debugger.trace_dispatch)
try:
result = object(conn)
finally:
debugger.quitting = 1
sys.settrace(None)
else:
result = object(conn)
assert (type(result) == type(int())), \
"ConnectionHandler '%s' returned invalid return code." % handler
except PROG_TRACEBACK, traceblock:
# Program run-time error
try:
(etype, value, traceback) = traceblock
result = self.ReportError(etype, value, traceback, srv=conn.base_server,
phase="ConnectionHandler",
hname=handler, debug=debug)
finally:
traceback = None
except:
# Any other rerror (usually parsing)
try:
exc_type, exc_value, exc_traceback = sys.exc_info()
result = self.ReportError(exc_type, exc_value, exc_traceback, srv=conn.base_server,
phase="ConnectionHandler",
hname=handler, debug=debug)
finally:
exc_traceback = None
return result
def FilterDispatch(self, filter):
req = filter.req
# config
config = req.get_config()
debug = int(config.get("PythonDebug", 0))
try:
# add the directory to pythonpath if
# not there yet, or evaluate pythonpath
# and set sys.path to resulting value
# if not already done
if config.has_key("PythonPath"):
_path_cache_lock.acquire()
try:
pathstring = config["PythonPath"]
if not _path_cache.has_key(pathstring):
newpath = eval(pathstring)
_path_cache[pathstring] = None
sys.path[:] = newpath
finally:
_path_cache_lock.release()
else:
if filter.dir and (filter.dir not in sys.path):
sys.path[:0] = [filter.dir]
if not callable(filter.handler):
# split module::handler
l = filter.handler.split('::', 1)
module_name = l[0]
if len(l) == 1:
# no oject, provide default
if filter.is_input:
object_str = "inputfilter"
else:
object_str = "outputfilter"
else:
object_str = l[1]
# import module
module = import_module(module_name,
autoreload=int(config.get("PythonAutoReload", 1)),
log=debug)
# find the object
object = resolve_object(module, object_str, arg=filter, silent=0)
else:
object = filter.handler
# Only permit debugging using pdb if Apache has
# actually been started in single process mode.
pdb_debug = int(config.get("PythonEnablePdb", "0"))
one_process = exists_config_define("ONE_PROCESS")
if pdb_debug and one_process:
# Don't use pdb.runcall() as it results in
# a bogus 'None' response when pdb session
# is quit. With this code the exception
# marking that the session has been quit is
# propogated back up and it is obvious in
# the error message what actually occurred.
debugger = pdb.Pdb()
debugger.reset()
sys.settrace(debugger.trace_dispatch)
try:
result = object(filter)
finally:
debugger.quitting = 1
sys.settrace(None)
else:
result = object(filter)
# always flush the filter. without a FLUSH or EOS bucket,
# the content is never written to the network.
# XXX an alternative is to tell the user to flush() always
if not filter.closed:
filter.flush()
except SERVER_RETURN, value:
# SERVER_RETURN indicates a non-local abort from below
# with value as (result, status) or (result, None) or result
try:
if len(value.args) == 2:
(result, status) = value.args
if status:
req.status = status
else:
result = value.args[0]
if type(result) != type(7):
s = "Value raised with SERVER_RETURN is invalid. It is a "
s = s + "%s, but it must be a tuple or an int." % type(result)
_apache.log_error(s, APLOG_NOERRNO|APLOG_ERR, req.server)
return
except:
pass
except PROG_TRACEBACK, traceblock:
# Program run-time error
try:
(etype, value, traceback) = traceblock
filter.disable()
result = self.ReportError(etype, value, traceback, req=req, filter=filter,
phase="Filter: " + filter.name,
hname=filter.handler, debug=debug)
finally:
traceback = None
except:
# Any other rerror (usually parsing)
try:
exc_type, exc_value, exc_traceback = sys.exc_info()
filter.disable()
result = self.ReportError(exc_type, exc_value, exc_traceback, req=req, filter=filter,
phase=filter.name, hname=filter.handler,
debug=debug)
finally:
exc_traceback = None
return OK
def HandlerDispatch(self, req):
"""
This is the handler dispatcher.
"""
# be cautious
result = HTTP_INTERNAL_SERVER_ERROR
# config
config = req.get_config()
debug = int(config.get("PythonDebug", 0))
default_object_str = req.phase[len("python"):].lower()
# Lookup expected status values that allow us to
# continue when multiple handlers exist.
expected = _status_values[default_object_str]
try:
hlist = req.hlist
while hlist.handler is not None:
# add the directory to pythonpath if
# not there yet, or evaluate pythonpath
# and set sys.path to resulting value
# if not already done
if config.has_key("PythonPath"):
_path_cache_lock.acquire()
try:
pathstring = config["PythonPath"]
if not _path_cache.has_key(pathstring):
newpath = eval(pathstring)
_path_cache[pathstring] = None
sys.path[:] = newpath
finally:
_path_cache_lock.release()
else:
dir = hlist.directory
if dir and (dir not in sys.path):
sys.path[:0] = [dir]
if not callable(hlist.handler):
# split module::handler
l = hlist.handler.split('::', 1)
module_name = l[0]
if len(l) == 1:
# no object, provide default
object_str = default_object_str
else:
object_str = l[1]
# import module
module = import_module(module_name,
autoreload=int(config.get("PythonAutoReload", 1)),
log=debug)
# find the object
object = resolve_object(module, object_str,
arg=req, silent=hlist.silent)
else:
object = hlist.handler
if not hlist.silent or object is not None:
try:
# Only permit debugging using pdb if Apache has
# actually been started in single process mode.
pdb_debug = int(config.get("PythonEnablePdb", "0"))
one_process = exists_config_define("ONE_PROCESS")
if pdb_debug and one_process:
# Don't use pdb.runcall() as it results in
# a bogus 'None' response when pdb session
# is quit. With this code the exception
# marking that the session has been quit is
# propogated back up and it is obvious in
# the error message what actually occurred.
debugger = pdb.Pdb()
debugger.reset()
sys.settrace(debugger.trace_dispatch)
try:
result = object(req)
finally:
debugger.quitting = 1
sys.settrace(None)
else:
result = object(req)
except SERVER_RETURN, value:
# The SERVER_RETURN exception type when raised
# otherwise indicates an abort from below with
# value as (result, status) or (result, None) or
# result.
if len(value.args) == 2:
(result, status) = value.args
if status:
req.status = status
else:
result = value.args[0]
assert (type(result) == types.IntType), \
_result_warning % type(result)
# stop cycling through handlers
if result not in expected:
break
elif hlist.silent:
# A missing handler when in silent mode will
# only propagate DECLINED if it is the first
# and only handler.
if result == HTTP_INTERNAL_SERVER_ERROR:
result = DECLINED
hlist.next()
except PROG_TRACEBACK, traceblock:
# Program run-time error
try:
(etype, value, traceback) = traceblock
result = self.ReportError(etype, value, traceback, req=req,
phase=req.phase, hname=hlist.handler,
debug=debug)
finally:
traceback = None
except:
# Any other rerror (usually parsing)
try:
exc_type, exc_value, exc_traceback = sys.exc_info()
result = self.ReportError(exc_type, exc_value, exc_traceback, req=req,
phase=req.phase, hname=hlist.handler, debug=debug)
finally:
exc_traceback = None
return result
def IncludeDispatch(self, filter, tag, code):
try:
config = filter.req.get_config()
debug = int(config.get("PythonDebug", 0))
if not hasattr(filter.req,"ssi_globals"):
filter.req.ssi_globals = {}
filter.req.ssi_globals["filter"] = filter
filter.req.ssi_globals["__file__"] = filter.req.filename
code = code.replace('\r\n', '\n').rstrip()
if tag == 'eval':
result = eval(code, filter.req.ssi_globals)
if result is not None:
filter.write(str(result))
elif tag == 'exec':
exec(code, filter.req.ssi_globals)
filter.flush()
except:
try:
exc_type, exc_value, exc_traceback = sys.exc_info()
result = self.ReportError(exc_type, exc_value, exc_traceback,
filter=filter, phase=filter.name,
hname=filter.req.filename,
debug=debug)
finally:
exc_traceback = None
raise
filter.req.ssi_globals["filter"] = None
return OK
def ImportDispatch(self, name):
config = main_server.get_config()
debug = int(config.get("PythonDebug", "0"))
# evaluate pythonpath and set sys.path to
# resulting value if not already done
if config.has_key("PythonPath"):
_path_cache_lock.acquire()
try:
pathstring = config["PythonPath"]
if not _path_cache.has_key(pathstring):
newpath = eval(pathstring)
_path_cache[pathstring] = None
sys.path[:] = newpath
finally:
_path_cache_lock.release()
# split module::function
l = name.split('::', 1)
module_name = l[0]
func_name = None
if len(l) != 1:
func_name = l[1]
module = import_module(module_name, log=debug)
if func_name:
getattr(module, func_name)()
def ReportError(self, etype, evalue, etb, req=None, filter=None, srv=None,
phase="N/A", hname="N/A", debug=0):
"""
This function is only used when debugging is on.
It sends the output similar to what you'd see
when using Python interactively to the browser
"""
try: # try/finally
try: # try/except
if str(etype) == "exceptions.IOError" \
and str(evalue)[:5] == "Write":
# if this is an IOError while writing to client,
# it is probably better not to try to write to the cleint
# even if debug is on.
debug = 0
# write to log
for e in traceback.format_exception(etype, evalue, etb):
s = "%s %s: %s" % (phase, hname, e[:-1])
if req:
req.log_error(s, APLOG_NOERRNO|APLOG_ERR)
else:
_apache.log_error(s, APLOG_NOERRNO|APLOG_ERR, srv)
if not debug or not req:
return HTTP_INTERNAL_SERVER_ERROR
else:
# write to client
req.status = HTTP_INTERNAL_SERVER_ERROR
req.content_type = 'text/html'
s = '\n<pre>\nMod_python error: "%s %s"\n\n' % (phase, hname)
for e in traceback.format_exception(etype, evalue, etb):
s = s + cgi.escape(e) + '\n'
s = s + "</pre>\n"
if filter:
filter.write(s)
filter.flush()
else:
req.write(s)
return DONE
except:
# last try
traceback.print_exc()
sys.stderr.flush()
finally:
# erase the traceback
etb = None
# we do not return anything
def import_module(module_name, autoreload=1, log=0, path=None):
"""
Get the module to handle the request. If
autoreload is on, then the module will be reloaded
if it has changed since the last import.
"""
# nlehuen: this is a big lock, we'll have to refine it later to get better performance.
# For now, we'll concentrate on thread-safety.
imp.acquire_lock()
try:
# (Re)import
if sys.modules.has_key(module_name):
# The module has been imported already
module = sys.modules[module_name]
# but is it in the path?
file = module.__dict__.get("__file__")
# the "and not" part of this condition is to prevent execution
# of arbitrary already imported modules, such as os. The
# reason we use startswith as opposed to exact match is that
# modules inside packages are actually in subdirectories.
if not file or (path and not filter(file.startswith, path)):
# there is a script by this name already imported, but it's in
# a different directory, therefore it's a different script
mtime, oldmtime = 0, -1
elif autoreload:
oldmtime = module.__dict__.get("__mtime__", 0)
mtime = module_mtime(module)
else:
mtime, oldmtime = 0, 0
else:
mtime, oldmtime = 0, -1
if mtime != oldmtime:
# Import the module
if log:
if path:
s = "mod_python: (Re)importing module '%s' with path set to '%s'" % (module_name, path)
else:
s = "mod_python: (Re)importing module '%s'" % module_name
_apache.log_error(s, APLOG_NOERRNO|APLOG_NOTICE)
parent = None
parts = module_name.split('.')
for i in range(len(parts)):
f, p, d = imp.find_module(parts[i], path)
try:
mname = ".".join(parts[:i+1])
module = imp.load_module(mname, f, p, d)
if parent:
setattr(parent,parts[i],module)
parent = module
finally:
if f: f.close()
if hasattr(module, "__path__"):
path = module.__path__
if mtime == 0:
mtime = module_mtime(module)
module.__mtime__ = mtime
return module
finally:
imp.release_lock()
def module_mtime(module):
"""Get modification time of module"""
mtime = 0
if module.__dict__.has_key("__file__"):
filepath = module.__file__
try:
# this try/except block is a workaround for a Python bug in
# 2.0, 2.1 and 2.1.1. See
# http://sourceforge.net/tracker/?group_id=5470&atid=105470&func=detail&aid=422004
if os.path.exists(filepath):
mtime = os.path.getmtime(filepath)
if os.path.exists(filepath[:-1]) :
mtime = max(mtime, os.path.getmtime(filepath[:-1]))
except OSError: pass
return mtime
def resolve_object(module, object_str, arg=None, silent=0):
"""
This function traverses the objects separated by .
(period) to find the last one we're looking for:
From left to right, find objects, if it is
an unbound method of a class, instantiate the
class passing the request as single argument
'arg' is sometimes req, sometimes filter,
sometimes connection
"""
obj = module
for obj_str in object_str.split('.'):
parent = obj
# don't throw attribute errors when silent
if silent and not hasattr(obj, obj_str):
return None
# this adds a little clarity if we have an attriute error
if obj == module and not hasattr(module, obj_str):
if hasattr(module, "__file__"):
s = "module '%s' contains no '%s'" % (module.__file__, obj_str)
raise AttributeError, s
obj = getattr(obj, obj_str)
if hasattr(obj, "im_self") and not obj.im_self:
# this is an unbound method, its class
# needs to be instantiated
instance = parent(arg)
obj = getattr(instance, obj_str)
return obj
def build_cgi_env(req):
"""
Utility function that returns a dictionary of
CGI environment variables as described in
http://hoohoo.ncsa.uiuc.edu/cgi/env.html
"""
req.add_common_vars()
env = req.subprocess_env.copy()
if req.path_info and len(req.path_info) > 0:
env["SCRIPT_NAME"] = req.uri[:-len(req.path_info)]
else:
env["SCRIPT_NAME"] = req.uri
env["GATEWAY_INTERFACE"] = "Python-CGI/1.1"
# you may want to comment this out for better security
if req.headers_in.has_key("authorization"):
env["HTTP_AUTHORIZATION"] = req.headers_in["authorization"]
return env
class NullIO:
""" Abstract IO
"""
def tell(self): return 0
def read(self, n = -1): return ""
def readline(self, length = None): return ""
def readlines(self): return []
def write(self, s): pass
def writelines(self, list):
self.write("".join(list))
def isatty(self): return 0
def flush(self): pass
def close(self): pass
def seek(self, pos, mode = 0): pass
class CGIStdin(NullIO):
def __init__(self, req):
self.pos = 0
self.req = req
self.BLOCK = 65536 # 64K
# note that self.buf sometimes contains leftovers
# that were read, but not used when readline was used
self.buf = ""
def read(self, n = -1):
if n == 0:
return ""
if n == -1:
s = self.req.read(self.BLOCK)
while s:
self.buf = self.buf + s
self.pos = self.pos + len(s)
s = self.req.read(self.BLOCK)
result = self.buf
self.buf = ""
return result
else:
if self.buf:
s = self.buf[:n]
n = n - len(s)
else:
s = ""
s = s + self.req.read(n)
self.pos = self.pos + len(s)
return s
def readlines(self):
s = (self.buf + self.read()).split('\n')
return map(lambda s: s + '\n', s)
def readline(self, n = -1):
if n == 0:
return ""
# fill up the buffer
self.buf = self.buf + self.req.read(self.BLOCK)
# look for \n in the buffer
i = self.buf.find('\n')
while i == -1: # if \n not found - read more
if (n != -1) and (len(self.buf) >= n): # we're past n
i = n - 1
break
x = len(self.buf)
self.buf = self.buf + self.req.read(self.BLOCK)
if len(self.buf) == x: # nothing read, eof
i = x - 1
break
i = self.buf.find('\n', x)
# carve out the piece, then shorten the buffer
result = self.buf[:i+1]
self.buf = self.buf[i+1:]
self.pos = self.pos + len(result)
return result
class CGIStdout(NullIO):
"""
Class that allows writing to the socket directly for CGI.
"""
def __init__(self, req):
self.pos = 0
self.req = req
self.headers_sent = 0
self.headers = ""
def write(self, s):
if not s: return
if not self.headers_sent:
self.headers = self.headers + s
# are headers over yet?
headers_over = 0
# first try RFC-compliant CRLF
ss = self.headers.split('\r\n\r\n', 1)
if len(ss) < 2:
# second try with \n\n
ss = self.headers.split('\n\n', 1)
if len(ss) >= 2:
headers_over = 1
else:
headers_over = 1
if headers_over:
# headers done, process them
ss[0] = ss[0].replace('\r\n', '\n')
lines = ss[0].split('\n')
for line in lines:
h, v = line.split(":", 1)
v = v.strip()
if h.lower() == "status":
status = int(v.split()[0])
self.req.status = status
elif h.lower() == "content-type":
self.req.content_type = v
self.req.headers_out[h] = v
else:
self.req.headers_out.add(h, v)
self.headers_sent = 1
# write the body if any at this point
self.req.write(ss[1])
else:
self.req.write(str(s))
self.pos = self.pos + len(s)
def tell(self): return self.pos
def setup_cgi(req):
"""
Replace sys.stdin and stdout with an objects that read/write to
the socket, as well as substitute the os.environ.
Returns (environ, stdin, stdout) which you must save and then use
with restore_nocgi().
"""
# save env
save_env = os.environ.copy()
si = sys.stdin
so = sys.stdout
os.environ.update(build_cgi_env(req))
sys.stdout = CGIStdout(req)
sys.stdin = CGIStdin(req)
sys.argv = [] # keeps cgi.py happy
return save_env, si, so
def restore_nocgi(sav_env, si, so):
""" see setup_cgi() """
osenv = os.environ
# restore env
for k in osenv.keys():
del osenv[k]
for k in sav_env:
osenv[k] = sav_env[k]
sys.stdout = si
sys.stdin = so
interpreter = None
main_server = None
_callback = None
def register_cleanup(callback, data=None):
_apache.register_cleanup(interpreter, main_server, callback, data)
def init(name, server):
"""
This function is called by the server at startup time
"""
global interpreter
global main_server
interpreter = name
main_server = server
sys.argv = ["mod_python"]
global _callback
_callback = CallBack()
options = main_server.get_options()
#interpreters = options.get('mod_python.future.importer', None)
interpreters = options.get('mod_python.legacy.importer', None)
if interpreters:
interpreters = map(lambda x: x.strip(), interpreters.split(','))
#if '*' in interpreters or interpreter in interpreters:
if not ('*' in interpreters or interpreter in interpreters):
from mod_python import importer
else:
from mod_python import importer
return _callback
## Some functions made public
make_table = _apache.table
log_error = _apache.log_error
table = _apache.table
config_tree = _apache.config_tree
server_root = _apache.server_root
mpm_query = _apache.mpm_query
exists_config_define = _apache.exists_config_define
stat = _apache.stat
## Some constants
HTTP_CONTINUE = 100
HTTP_SWITCHING_PROTOCOLS = 101
HTTP_PROCESSING = 102
HTTP_OK = 200
HTTP_CREATED = 201
HTTP_ACCEPTED = 202
HTTP_NON_AUTHORITATIVE = 203
HTTP_NO_CONTENT = 204
HTTP_RESET_CONTENT = 205
HTTP_PARTIAL_CONTENT = 206
HTTP_MULTI_STATUS = 207
HTTP_MULTIPLE_CHOICES = 300
HTTP_MOVED_PERMANENTLY = 301
HTTP_MOVED_TEMPORARILY = 302
HTTP_SEE_OTHER = 303
HTTP_NOT_MODIFIED = 304
HTTP_USE_PROXY = 305
HTTP_TEMPORARY_REDIRECT = 307
HTTP_BAD_REQUEST = 400
HTTP_UNAUTHORIZED = 401
HTTP_PAYMENT_REQUIRED = 402
HTTP_FORBIDDEN = 403
HTTP_NOT_FOUND = 404
HTTP_METHOD_NOT_ALLOWED = 405
HTTP_NOT_ACCEPTABLE = 406
HTTP_PROXY_AUTHENTICATION_REQUIRED= 407
HTTP_REQUEST_TIME_OUT = 408
HTTP_CONFLICT = 409
HTTP_GONE = 410
HTTP_LENGTH_REQUIRED = 411
HTTP_PRECONDITION_FAILED = 412
HTTP_REQUEST_ENTITY_TOO_LARGE = 413
HTTP_REQUEST_URI_TOO_LARGE = 414
HTTP_UNSUPPORTED_MEDIA_TYPE = 415
HTTP_RANGE_NOT_SATISFIABLE = 416
HTTP_EXPECTATION_FAILED = 417
HTTP_UNPROCESSABLE_ENTITY = 422
HTTP_LOCKED = 423
HTTP_FAILED_DEPENDENCY = 424
HTTP_UPGRADE_REQUIRED = 426
HTTP_INTERNAL_SERVER_ERROR = 500
HTTP_NOT_IMPLEMENTED = 501
HTTP_BAD_GATEWAY = 502
HTTP_SERVICE_UNAVAILABLE = 503
HTTP_GATEWAY_TIME_OUT = 504
HTTP_VERSION_NOT_SUPPORTED = 505
HTTP_VARIANT_ALSO_VARIES = 506
HTTP_INSUFFICIENT_STORAGE = 507
HTTP_NOT_EXTENDED = 510
# The APLOG constants in Apache are derived from syslog.h
# constants, so we do same here.
try:
import syslog
APLOG_EMERG = syslog.LOG_EMERG # system is unusable
APLOG_ALERT = syslog.LOG_ALERT # action must be taken immediately
APLOG_CRIT = syslog.LOG_CRIT # critical conditions
APLOG_ERR = syslog.LOG_ERR # error conditions
APLOG_WARNING = syslog.LOG_WARNING # warning conditions
APLOG_NOTICE = syslog.LOG_NOTICE # normal but significant condition
APLOG_INFO = syslog.LOG_INFO # informational
APLOG_DEBUG = syslog.LOG_DEBUG # debug-level messages
except ImportError:
APLOG_EMERG = 0
APLOG_ALERT = 1
APLOG_CRIT = 2
APLOG_ERR = 3
APLOG_WARNING = 4
APLOG_NOTICE = 5
APLOG_INFO = 6
APLOG_DEBUG = 7
APLOG_NOERRNO = 8
OK = REQ_PROCEED = 0
DONE = -2
DECLINED = REQ_NOACTION = -1
_status_values = {
"postreadrequesthandler": [ DECLINED, OK ],
"transhandler": [ DECLINED ],
"maptostoragehandler": [ DECLINED ],
"inithandler": [ DECLINED, OK ],
"headerparserhandler": [ DECLINED, OK ],
"accesshandler": [ DECLINED, OK ],
"authenhandler": [ DECLINED ],
"authzhandler": [ DECLINED ],
"typehandler": [ DECLINED ],
"fixuphandler": [ DECLINED, OK ],
"loghandler": [ DECLINED, OK ],
"handler": [ OK ],
}
# constants for get_remote_host
REMOTE_HOST = 0
REMOTE_NAME = 1
REMOTE_NOLOOKUP = 2
REMOTE_DOUBLE_REV = 3
# legacy/mod_python things
REQ_ABORTED = HTTP_INTERNAL_SERVER_ERROR
REQ_EXIT = "REQ_EXIT"
SERVER_RETURN = _apache.SERVER_RETURN
PROG_TRACEBACK = "PROG_TRACEBACK"
# the req.finfo tuple
FINFO_MODE = 0
FINFO_INO = 1
FINFO_DEV = 2
FINFO_NLINK = 3
FINFO_UID = 4
FINFO_GID = 5
FINFO_SIZE = 6
FINFO_ATIME = 7
FINFO_MTIME = 8
FINFO_CTIME = 9
FINFO_FNAME = 10
FINFO_NAME = 11
FINFO_FILETYPE = 12
# the req.parsed_uri
URI_SCHEME = 0
URI_HOSTINFO = 1
URI_USER = 2
URI_PASSWORD = 3
URI_HOSTNAME = 4
URI_PORT = 5
URI_PATH = 6
URI_QUERY = 7
URI_FRAGMENT = 8
# for req.proxyreq
PROXYREQ_NONE = 0 # No proxy
PROXYREQ_PROXY = 1 # Standard proxy
PROXYREQ_REVERSE = 2 # Reverse proxy
PROXYREQ_RESPONSE = 3 # Origin response
# methods for req.allow_method()
M_GET = 0 # RFC 2616: HTTP
M_PUT = 1
M_POST = 2
M_DELETE = 3
M_CONNECT = 4
M_OPTIONS = 5
M_TRACE = 6 # RFC 2616: HTTP
M_PATCH = 7
M_PROPFIND = 8 # RFC 2518: WebDAV
M_PROPPATCH = 9
M_MKCOL = 10
M_COPY = 11
M_MOVE = 12
M_LOCK = 13
M_UNLOCK = 14 # RFC2518: WebDAV
M_VERSION_CONTROL = 15 # RFC3253: WebDAV Versioning
M_CHECKOUT = 16
M_UNCHECKOUT = 17
M_CHECKIN = 18
M_UPDATE = 19
M_LABEL = 20
M_REPORT = 21
M_MKWORKSPACE = 22
M_MKACTIVITY = 23
M_BASELINE_CONTROL = 24
M_MERGE = 25
M_INVALID = 26 # RFC3253: WebDAV Versioning
# for req.used_path_info
AP_REQ_ACCEPT_PATH_INFO = 0 # Accept request given path_info
AP_REQ_REJECT_PATH_INFO = 1 # Send 404 error if path_info was given
AP_REQ_DEFAULT_PATH_INFO = 2 # Module's choice for handling path_info
# for mpm_query
AP_MPMQ_NOT_SUPPORTED = 0 # This value specifies whether
# an MPM is capable of
# threading or forking.
AP_MPMQ_STATIC = 1 # This value specifies whether
# an MPM is using a static # of
# threads or daemons.
AP_MPMQ_DYNAMIC = 2 # This value specifies whether
# an MPM is using a dynamic # of
# threads or daemons.
AP_MPMQ_MAX_DAEMON_USED = 1 # Max # of daemons used so far
AP_MPMQ_IS_THREADED = 2 # MPM can do threading
AP_MPMQ_IS_FORKED = 3 # MPM can do forking
AP_MPMQ_HARD_LIMIT_DAEMONS = 4 # The compiled max # daemons
AP_MPMQ_HARD_LIMIT_THREADS = 5 # The compiled max # threads
AP_MPMQ_MAX_THREADS = 6 # # of threads/child by config
AP_MPMQ_MIN_SPARE_DAEMONS = 7 # Min # of spare daemons
AP_MPMQ_MIN_SPARE_THREADS = 8 # Min # of spare threads
AP_MPMQ_MAX_SPARE_DAEMONS = 9 # Max # of spare daemons
AP_MPMQ_MAX_SPARE_THREADS = 10 # Max # of spare threads
AP_MPMQ_MAX_REQUESTS_DAEMON= 11 # Max # of requests per daemon
AP_MPMQ_MAX_DAEMONS = 12 # Max # of daemons by config
# magic mime types
CGI_MAGIC_TYPE = "application/x-httpd-cgi"
INCLUDES_MAGIC_TYPE = "text/x-server-parsed-html"
INCLUDES_MAGIC_TYPE3 = "text/x-server-parsed-html3"
DIR_MAGIC_TYPE = "httpd/unix-directory"
# for req.read_body
REQUEST_NO_BODY = 0
REQUEST_CHUNKED_ERROR = 1
REQUEST_CHUNKED_DECHUNK = 2
# for req.connection.keepalive
AP_CONN_UNKNOWN = _apache.AP_CONN_UNKNOWN
AP_CONN_CLOSE = _apache.AP_CONN_CLOSE
AP_CONN_KEEPALIVE = _apache.AP_CONN_KEEPALIVE
# for req.finfo[apache.FINFO_FILETYPE]
APR_NOFILE = _apache.APR_NOFILE
APR_REG = _apache.APR_REG
APR_DIR = _apache.APR_DIR
APR_CHR = _apache.APR_CHR
APR_BLK = _apache.APR_BLK
APR_PIPE = _apache.APR_PIPE
APR_LNK = _apache.APR_LNK
APR_SOCK = _apache.APR_SOCK
APR_UNKFILE = _apache.APR_UNKFILE
# for apache.stat()
APR_FINFO_LINK = 0x00000001 # Stat the link not the file itself if it is a link
APR_FINFO_MTIME = 0x00000010 # Modification Time
APR_FINFO_CTIME = 0x00000020 # Creation or inode-changed time
APR_FINFO_ATIME = 0x00000040 # Access Time
APR_FINFO_SIZE = 0x00000100 # Size of the file
APR_FINFO_CSIZE = 0x00000200 # Storage size consumed by the file
APR_FINFO_DEV = 0x00001000 # Device
APR_FINFO_INODE = 0x00002000 # Inode
APR_FINFO_NLINK = 0x00004000 # Number of links
APR_FINFO_TYPE = 0x00008000 # Type
APR_FINFO_USER = 0x00010000 # User
APR_FINFO_GROUP = 0x00020000 # Group
APR_FINFO_UPROT = 0x00100000 # User protection bits
APR_FINFO_GPROT = 0x00200000 # Group protection bits
APR_FINFO_WPROT = 0x00400000 # World protection bits
APR_FINFO_ICASE = 0x01000000 # if dev is case insensitive
APR_FINFO_NAME = 0x02000000 # ->name in proper case
APR_FINFO_MIN = 0x00008170 # type, mtime, ctime, atime, size
APR_FINFO_IDENT = 0x00003000 # dev and inode
APR_FINFO_OWNER = 0x00030000 # user and group
APR_FINFO_PROT = 0x00700000 # all protections
APR_FINFO_NORM = 0x0073b170 # an atomic unix apr_stat()
APR_FINFO_DIRENT = 0x02000000 # an atomic unix apr_dir_read()
|