view conf/koi-win @ 7354:1812f1d79d84

Fixed socket leak with "return 444" in error_page (ticket #274). Socket leak was observed in the following configuration: error_page 400 = /close; location = /close { return 444; } The problem is that "return 444" triggers termination of the request, and due to error_page termination thinks that it needs to use a posted request to clear stack. But at the early request processing where 400 errors are generated there are no ngx_http_run_posted_requests() calls, so the request is only terminated after an external event. Variants of the problem include "error_page 497" instead (ticket #695) and various other errors generated during early request processing (405, 414, 421, 494, 495, 496, 501, 505). The same problem can be also triggered with "return 499" and "return 408" as both codes trigger ngx_http_terminate_request(), much like "return 444". To fix this, the patch adds ngx_http_run_posted_requests() calls to ngx_http_process_request_line() and ngx_http_process_request_headers() functions, and to ngx_http_v2_run_request() and ngx_http_v2_push_stream() functions in HTTP/2. Since the ngx_http_process_request() function is now only called via other functions which call ngx_http_run_posted_requests(), the call there is no longer needed and was removed.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 21 Sep 2018 15:59:30 +0300
parents 400711951595
children
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charset_map  koi8-r  windows-1251 {

    80  88 ; # euro

    95  95 ; # bullet

    9A  A0 ; # &nbsp;

    9E  B7 ; # &middot;

    A3  B8 ; # small yo
    A4  BA ; # small Ukrainian ye

    A6  B3 ; # small Ukrainian i
    A7  BF ; # small Ukrainian yi

    AD  B4 ; # small Ukrainian soft g
    AE  A2 ; # small Byelorussian short u

    B0  B0 ; # &deg;

    B3  A8 ; # capital YO
    B4  AA ; # capital Ukrainian YE

    B6  B2 ; # capital Ukrainian I
    B7  AF ; # capital Ukrainian YI

    B9  B9 ; # numero sign

    BD  A5 ; # capital Ukrainian soft G
    BE  A1 ; # capital Byelorussian short U

    BF  A9 ; # (C)

    C0  FE ; # small yu
    C1  E0 ; # small a
    C2  E1 ; # small b
    C3  F6 ; # small ts
    C4  E4 ; # small d
    C5  E5 ; # small ye
    C6  F4 ; # small f
    C7  E3 ; # small g
    C8  F5 ; # small kh
    C9  E8 ; # small i
    CA  E9 ; # small j
    CB  EA ; # small k
    CC  EB ; # small l
    CD  EC ; # small m
    CE  ED ; # small n
    CF  EE ; # small o

    D0  EF ; # small p
    D1  FF ; # small ya
    D2  F0 ; # small r
    D3  F1 ; # small s
    D4  F2 ; # small t
    D5  F3 ; # small u
    D6  E6 ; # small zh
    D7  E2 ; # small v
    D8  FC ; # small soft sign
    D9  FB ; # small y
    DA  E7 ; # small z
    DB  F8 ; # small sh
    DC  FD ; # small e
    DD  F9 ; # small shch
    DE  F7 ; # small ch
    DF  FA ; # small hard sign

    E0  DE ; # capital YU
    E1  C0 ; # capital A
    E2  C1 ; # capital B
    E3  D6 ; # capital TS
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    E5  C5 ; # capital YE
    E6  D4 ; # capital F
    E7  C3 ; # capital G
    E8  D5 ; # capital KH
    E9  C8 ; # capital I
    EA  C9 ; # capital J
    EB  CA ; # capital K
    EC  CB ; # capital L
    ED  CC ; # capital M
    EE  CD ; # capital N
    EF  CE ; # capital O

    F0  CF ; # capital P
    F1  DF ; # capital YA
    F2  D0 ; # capital R
    F3  D1 ; # capital S
    F4  D2 ; # capital T
    F5  D3 ; # capital U
    F6  C6 ; # capital ZH
    F7  C2 ; # capital V
    F8  DC ; # capital soft sign
    F9  DB ; # capital Y
    FA  C7 ; # capital Z
    FB  D8 ; # capital SH
    FC  DD ; # capital E
    FD  D9 ; # capital SHCH
    FE  D7 ; # capital CH
    FF  DA ; # capital hard sign
}