RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð ....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! Aõ.ç~ÓBûH÷JCÌ]õVƒd «ú´QÙEA–¯¯Œ!.ˆˆëQ±ù œ·Ì!Õâ )ùL„ÅÀlÚè5@B…o´Æ¸XÓ&Û…O«˜”_#‡ƒ„ûÈt!¤ÁÏ›ÎÝŠ?c9 â\>lÓÁVÄÑ™£eØY]:fÝ–—ù+p{™ðè û³”g±OƒÚSù£áÁÊ„ä,ï7š²G ÕÌBk)~ÑiCµ|h#u¤¶îK¨² #²vݯGãeÖ϶ú…¾múÀ¶þÔñ‚Š9'^($¤§ò “š½{éúp÷J›ušS¹áªCÂubÃH9™D™/ZöØÁ‡¦ÝÙŸ·kð*_”.C‹{áXó€‡c¡c€§/šò/&éš÷,àéJþ‰X›fµ“C¨œ®r¬"kL‰Â_q…Z–.ÉL~O µ›zn‚¹À¦Öª7\àHµšÖ %»ÇníV[¥*Õ;ƒ#½¾HK-ÖIÊdÏEÚ#=o÷Óò³´Š: Ç?{¾+9›–‘OEáU·S€˜j"ÄaÜ ŒÛWt› á–c#a»pÔZÞdŽtWê=9éöÊ¢µ~ ë ;Öe‡Œ®:bî3±ýê¢wà¼îpêñ¹¾4 zc¾ðÖÿzdêŒÑÒŝÀ‰s6¤í³ÎÙB¿OZ”+F¤á‡3@Ñëäg©·Ž ˆèª<ù@É{&S„œÕúÀA)‰h:YÀ5^ÂÓŒ°õäU\ ùËÍû#²?Xe¬tu‰^zÒÔãë¼ÛWtEtû …‚g¶Úüâî*moGè¨7%u!]PhÏd™Ý%Îx: VÒ¦ôÊD3ÀŽKÛËãvÆî…N¯ä>Eró–ð`5 Œ%u5XkñÌ*NU%¶áœÊ:Qÿú»“úzyÏ6å-၇¾ ´ ÒÊ]y žO‘w2Äøæ…H’²f±ÎÇ.ª|¥'gîV•Ü .̘¯€šòü¤U~Ù†*¢!?ò wý,}´°ÔÞnïoKq5µb!áÓ3"vAßH¡³¡·G(ÐÎ0Îò¼MG!/ài®@—¬04*`…«é8ªøøló“ˆÊ”èù¤…ßÊoÿé'ËuÌÖ5×È¡§ˆˆfŽë9}hìâ_!!¯  B&Ëö¶‰ÀAÙNVŸ Wh›¸®XÑJì¨ú“¿÷3uj²˜¨ÍÎìë±aúŠÝå¯ð*Ó¨ôJ“yºØ)m°WýOè68†ŸÏ2—‰Ïüꪫٚ¥‹l1 ø ÏÄFjêµvÌbü¦èÝx:X±¢H=MÐß—,ˆÉÇ´(9ú¾^ÅÚ4¿m‡$âX‘å%(AlZo@½¨UOÌÕ”1ø¸jÎÀÃÃ_ µ‘Ü.œº¦Ut: Æï’!=¯uwû#,“pþÇúŒø(é@?³ü¥‘Mo §—s@Œ#)§ŒùkL}NOÆêA›¸~r½¼ÙA—HJ«eˆÖ´*¡ÓpÌŸö.m<-"³ûÈ$¬_6­åf£ïÚâj1y§ÕJ½@dÞÁr&Í\Z%D£Íñ·AZ Û³øüd/ªAi†/Й~  ‡âĮҮÏh§°b—›Û«mJžòG'[ÈYýŒ¦9psl ýÁ ®±f¦x,‰½tN ‚Xª9 ÙÖH.«Lo0×?͹m¡å†Ѽ+›2ƒF ±Ê8 7Hցϓ²Æ–m9…òŸï]Â1äN†VLâCˆU .ÿ‰Ts +ÅÎx(%¦u]6AF Š ØF鈄‘ |¢¶c±soŒ/t[a¾–û:s·`i햍ê›ËchÈ…8ßÀUÜewŒðNOƒõD%q#éû\9¤x¹&UE×G¥ Í—™$ð E6-‡¼!ýpãÔM˜ Âsìe¯ñµK¢Ç¡ùôléœ4Ö£”À Š®Ðc ^¨À}ÙËŸ§›ºê{ÊuÉC ×Sr€¤’fÉ*j!úÓ’Gsùìoîßîn%ò· àc Wp÷$¨˜)û»H ×8ŽÒ€Zj¤3ÀÙºY'Ql¦py{-6íÔCeiØp‘‡XÊîÆUߢ܂ž£Xé¼Y8þ©ëgñß}é.ÎógÒ„ÃØËø¯»™§Xýy M%@NŠ À(~áÐvu7&•,Ù˜ó€uP‡^^®=_E„jt’ 403WebShell
403Webshell
Server IP : 104.225.223.251  /  Your IP : 216.73.216.41
Web Server : Apache/2.4.41 (Ubuntu)
System : Linux agtdemo03 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64
User : root ( 0)
PHP Version : 7.4.3-4ubuntu2.29
Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare,
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : OFF  |  Sudo : ON  |  Pkexec : ON
Directory :  /lib/python3/dist-packages/twisted/scripts/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /lib/python3/dist-packages/twisted/scripts//_twistd_unix.py
# -*- test-case-name: twisted.test.test_twistd -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

from __future__ import absolute_import, division, print_function

import errno
import os
import pwd
import sys
import traceback

from twisted.python import log, logfile, usage
from twisted.python.compat import (intToBytes, _bytesRepr, _PY3)
from twisted.python.util import (
    switchUID, uidFromString, gidFromString, untilConcludes)
from twisted.application import app, service
from twisted.internet.interfaces import IReactorDaemonize
from twisted import copyright, logger
from twisted.python.runtime import platformType



if platformType == "win32":
    raise ImportError("_twistd_unix doesn't work on Windows.")


def _umask(value):
    return int(value, 8)


class ServerOptions(app.ServerOptions):
    synopsis = "Usage: twistd [options]"

    optFlags = [['nodaemon', 'n', "don't daemonize, don't use default umask of 0077"],
                ['originalname', None, "Don't try to change the process name"],
                ['syslog', None, "Log to syslog, not to file"],
                ['euid', '',
                 "Set only effective user-id rather than real user-id. "
                 "(This option has no effect unless the server is running as "
                 "root, in which case it means not to shed all privileges "
                 "after binding ports, retaining the option to regain "
                 "privileges in cases such as spawning processes. "
                 "Use with caution.)"],
               ]

    optParameters = [
                     ['prefix', None,'twisted',
                      "use the given prefix when syslogging"],
                     ['pidfile','','twistd.pid',
                      "Name of the pidfile"],
                     ['chroot', None, None,
                      'Chroot to a supplied directory before running'],
                     ['uid', 'u', None, "The uid to run as.", uidFromString],
                     ['gid', 'g', None,
                      "The gid to run as.  If not specified, the default gid "
                      "associated with the specified --uid is used.",
                      gidFromString],
                     ['umask', None, None,
                      "The (octal) file creation mask to apply.", _umask],
                    ]

    compData = usage.Completions(
        optActions={"pidfile": usage.CompleteFiles("*.pid"),
                    "chroot": usage.CompleteDirs(descr="chroot directory"),
                    "gid": usage.CompleteGroups(descr="gid to run as"),
                    "uid": usage.CompleteUsernames(descr="uid to run as"),
                    "prefix": usage.Completer(descr="syslog prefix"),
                    },
        )


    def opt_version(self):
        """
        Print version information and exit.
        """
        print('twistd (the Twisted daemon) {}'.format(copyright.version),
              file=self.stdout)
        print(copyright.copyright, file=self.stdout)
        sys.exit()


    def postOptions(self):
        app.ServerOptions.postOptions(self)
        if self['pidfile']:
            self['pidfile'] = os.path.abspath(self['pidfile'])


def checkPID(pidfile):
    if not pidfile:
        return
    if os.path.exists(pidfile):
        try:
            with open(pidfile) as f:
                pid = int(f.read())
        except ValueError:
            sys.exit('Pidfile {} contains non-numeric value'.format(pidfile))
        try:
            os.kill(pid, 0)
        except OSError as why:
            if why.errno == errno.ESRCH:
                # The pid doesn't exist.
                log.msg('Removing stale pidfile {}'.format(pidfile), isError=True)
                os.remove(pidfile)
            else:
                sys.exit(
                    "Can't check status of PID {} from pidfile {}: {}".format(
                    pid, pidfile, why))
        else:
            sys.exit("""\
Another twistd server is running, PID {}\n
This could either be a previously started instance of your application or a
different application entirely. To start a new one, either run it in some other
directory, or use the --pidfile and --logfile parameters to avoid clashes.
""".format(pid))



class UnixAppLogger(app.AppLogger):
    """
    A logger able to log to syslog, to files, and to stdout.

    @ivar _syslog: A flag indicating whether to use syslog instead of file
        logging.
    @type _syslog: C{bool}

    @ivar _syslogPrefix: If C{sysLog} is C{True}, the string prefix to use for
        syslog messages.
    @type _syslogPrefix: C{str}

    @ivar _nodaemon: A flag indicating the process will not be daemonizing.
    @type _nodaemon: C{bool}
    """

    def __init__(self, options):
        app.AppLogger.__init__(self, options)
        self._syslog = options.get("syslog", False)
        self._syslogPrefix = options.get("prefix", "")
        self._nodaemon = options.get("nodaemon", False)


    def _getLogObserver(self):
        """
        Create and return a suitable log observer for the given configuration.

        The observer will go to syslog using the prefix C{_syslogPrefix} if
        C{_syslog} is true.  Otherwise, it will go to the file named
        C{_logfilename} or, if C{_nodaemon} is true and C{_logfilename} is
        C{"-"}, to stdout.

        @return: An object suitable to be passed to C{log.addObserver}.
        """
        if self._syslog:
            from twisted.python import syslog
            return syslog.SyslogObserver(self._syslogPrefix).emit

        if self._logfilename == '-':
            if not self._nodaemon:
                sys.exit('Daemons cannot log to stdout, exiting!')
            logFile = sys.stdout
        elif self._nodaemon and not self._logfilename:
            logFile = sys.stdout
        else:
            if not self._logfilename:
                self._logfilename = 'twistd.log'
            logFile = logfile.LogFile.fromFullPath(self._logfilename)
            try:
                import signal
            except ImportError:
                pass
            else:
                # Override if signal is set to None or SIG_DFL (0)
                if not signal.getsignal(signal.SIGUSR1):
                    def rotateLog(signal, frame):
                        from twisted.internet import reactor
                        reactor.callFromThread(logFile.rotate)
                    signal.signal(signal.SIGUSR1, rotateLog)
        return logger.textFileLogObserver(logFile)



def launchWithName(name):
    if name and name != sys.argv[0]:
        exe = os.path.realpath(sys.executable)
        log.msg('Changing process name to ' + name)
        os.execv(exe, [name, sys.argv[0], '--originalname'] + sys.argv[1:])



class UnixApplicationRunner(app.ApplicationRunner):
    """
    An ApplicationRunner which does Unix-specific things, like fork,
    shed privileges, and maintain a PID file.
    """
    loggerFactory = UnixAppLogger

    def preApplication(self):
        """
        Do pre-application-creation setup.
        """
        checkPID(self.config['pidfile'])
        self.config['nodaemon'] = (self.config['nodaemon']
                                   or self.config['debug'])
        self.oldstdout = sys.stdout
        self.oldstderr = sys.stderr


    def _formatChildException(self, exception):
        """
        Format the C{exception} in preparation for writing to the
        status pipe.  This does the right thing on Python 2 if the
        exception's message is Unicode, and in all cases limits the
        length of the message afte* encoding to 100 bytes.

        This means the returned message may be truncated in the middle
        of a unicode escape.

        @type exception: L{Exception}
        @param exception: The exception to format.

        @return: The formatted message, suitable for writing to the
            status pipe.
        @rtype: L{bytes}
        """
        # On Python 2 this will encode Unicode messages with the ascii
        # codec and the backslashreplace error handler.
        exceptionLine = traceback.format_exception_only(exception.__class__,
                                                        exception)[-1]
        # remove the trailing newline
        formattedMessage = '1 {}'.format(exceptionLine.strip())
        # On Python 3, encode the message the same way Python 2's
        # format_exception_only does
        if _PY3:
            formattedMessage = formattedMessage.encode('ascii',
                                                       'backslashreplace')
        # By this point, the message has been encoded, if appropriate,
        # with backslashreplace on both Python 2 and Python 3.
        # Truncating the encoded message won't make it completely
        # unreadable, and the reader should print out the repr of the
        # message it receives anyway.  What it will do, however, is
        # ensure that only 100 bytes are written to the status pipe,
        # ensuring that the child doesn't block because the pipe's
        # full.  This assumes PIPE_BUF > 100!
        return formattedMessage[:100]


    def postApplication(self):
        """
        To be called after the application is created: start the application
        and run the reactor. After the reactor stops, clean up PID files and
        such.
        """
        try:
            self.startApplication(self.application)
        except Exception as ex:
            statusPipe = self.config.get("statusPipe", None)
            if statusPipe is not None:
                message = self._formatChildException(ex)
                untilConcludes(os.write, statusPipe, message)
                untilConcludes(os.close, statusPipe)
            self.removePID(self.config['pidfile'])
            raise
        else:
            statusPipe = self.config.get("statusPipe", None)
            if statusPipe is not None:
                untilConcludes(os.write, statusPipe, b"0")
                untilConcludes(os.close, statusPipe)
        self.startReactor(None, self.oldstdout, self.oldstderr)
        self.removePID(self.config['pidfile'])


    def removePID(self, pidfile):
        """
        Remove the specified PID file, if possible.  Errors are logged, not
        raised.

        @type pidfile: C{str}
        @param pidfile: The path to the PID tracking file.
        """
        if not pidfile:
            return
        try:
            os.unlink(pidfile)
        except OSError as e:
            if e.errno == errno.EACCES or e.errno == errno.EPERM:
                log.msg("Warning: No permission to delete pid file")
            else:
                log.err(e, "Failed to unlink PID file:")
        except:
            log.err(None, "Failed to unlink PID file:")


    def setupEnvironment(self, chroot, rundir, nodaemon, umask, pidfile):
        """
        Set the filesystem root, the working directory, and daemonize.

        @type chroot: C{str} or L{None}
        @param chroot: If not None, a path to use as the filesystem root (using
            L{os.chroot}).

        @type rundir: C{str}
        @param rundir: The path to set as the working directory.

        @type nodaemon: C{bool}
        @param nodaemon: A flag which, if set, indicates that daemonization
            should not be done.

        @type umask: C{int} or L{None}
        @param umask: The value to which to change the process umask.

        @type pidfile: C{str} or L{None}
        @param pidfile: If not L{None}, the path to a file into which to put
            the PID of this process.
        """
        daemon = not nodaemon

        if chroot is not None:
            os.chroot(chroot)
            if rundir == '.':
                rundir = '/'
        os.chdir(rundir)
        if daemon and umask is None:
            umask = 0o077
        if umask is not None:
            os.umask(umask)
        if daemon:
            from twisted.internet import reactor
            self.config["statusPipe"] = self.daemonize(reactor)
        if pidfile:
            with open(pidfile, 'wb') as f:
                f.write(intToBytes(os.getpid()))


    def daemonize(self, reactor):
        """
        Daemonizes the application on Unix. This is done by the usual double
        forking approach.

        @see: U{http://code.activestate.com/recipes/278731/}
        @see: W. Richard Stevens,
            "Advanced Programming in the Unix Environment",
            1992, Addison-Wesley, ISBN 0-201-56317-7

        @param reactor: The reactor in use.  If it provides
            L{IReactorDaemonize}, its daemonization-related callbacks will be
            invoked.

        @return: A writable pipe to be used to report errors.
        @rtype: C{int}
        """
        # If the reactor requires hooks to be called for daemonization, call
        # them. Currently the only reactor which provides/needs that is
        # KQueueReactor.
        if IReactorDaemonize.providedBy(reactor):
            reactor.beforeDaemonize()
        r, w = os.pipe()
        if os.fork():  # launch child and...
            code = self._waitForStart(r)
            os.close(r)
            os._exit(code)   # kill off parent
        os.setsid()
        if os.fork():  # launch child and...
            os._exit(0)  # kill off parent again.
        null = os.open('/dev/null', os.O_RDWR)
        for i in range(3):
            try:
                os.dup2(null, i)
            except OSError as e:
                if e.errno != errno.EBADF:
                    raise
        os.close(null)

        if IReactorDaemonize.providedBy(reactor):
            reactor.afterDaemonize()

        return w


    def _waitForStart(self, readPipe):
        """
        Wait for the daemonization success.

        @param readPipe: file descriptor to read start information from.
        @type readPipe: C{int}

        @return: code to be passed to C{os._exit}: 0 for success, 1 for error.
        @rtype: C{int}
        """
        data = untilConcludes(os.read, readPipe, 100)
        dataRepr = _bytesRepr(data[2:])
        if data != b"0":
            msg = ("An error has occurred: {}\nPlease look at log "
                   "file for more information.\n".format(dataRepr))
            untilConcludes(sys.__stderr__.write, msg)
            return 1
        return 0


    def shedPrivileges(self, euid, uid, gid):
        """
        Change the UID and GID or the EUID and EGID of this process.

        @type euid: C{bool}
        @param euid: A flag which, if set, indicates that only the I{effective}
            UID and GID should be set.

        @type uid: C{int} or L{None}
        @param uid: If not L{None}, the UID to which to switch.

        @type gid: C{int} or L{None}
        @param gid: If not L{None}, the GID to which to switch.
        """
        if uid is not None or gid is not None:
            extra = euid and 'e' or ''
            desc = '{}uid/{}gid {}/{}'.format(extra, extra, uid, gid)
            try:
                switchUID(uid, gid, euid)
            except OSError as e:
                log.msg('failed to set {}: {} (are you root?) -- '
                        'exiting.'.format(desc, e))
                sys.exit(1)
            else:
                log.msg('set {}'.format(desc))


    def startApplication(self, application):
        """
        Configure global process state based on the given application and run
        the application.

        @param application: An object which can be adapted to
            L{service.IProcess} and L{service.IService}.
        """
        process = service.IProcess(application)
        if not self.config['originalname']:
            launchWithName(process.processName)
        self.setupEnvironment(
            self.config['chroot'], self.config['rundir'],
            self.config['nodaemon'], self.config['umask'],
            self.config['pidfile'])

        service.IService(application).privilegedStartService()

        uid, gid = self.config['uid'], self.config['gid']
        if uid is None:
            uid = process.uid
        if gid is None:
            gid = process.gid
        if uid is not None and gid is None:
            gid = pwd.getpwuid(uid).pw_gid

        self.shedPrivileges(self.config['euid'], uid, gid)
        app.startApplication(application, not self.config['no_save'])

Youez - 2016 - github.com/yon3zu
LinuXploit