Mercurial > hg > nginx-quic
annotate src/http/v2/ngx_http_v2_encode.c @ 7524:deebe988cbd7
Perl: reworked perl module to pass ctx instead of request.
This ensures that correct ctx is always available, including after
filter finalization. In particular, this fixes a segmentation fault
with the following configuration:
location / {
image_filter test;
perl 'sub {
my $r = shift;
$r->send_http_header();
$r->print("foo\n");
$r->print("bar\n");
}';
}
This also seems to be the only way to correctly handle filter finalization
in various complex cases, for example, when embedded perl is used both
in the original handler and in an error page called after filter
finalization.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 12 Jul 2019 11:29:22 +0300 |
parents | 87e9e4aabf1b |
children | 336084ff943b |
rev | line source |
---|---|
7229
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
2 /* |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
3 * Copyright (C) Nginx, Inc. |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
4 * Copyright (C) Valentin V. Bartenev |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
5 */ |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
6 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
7 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
8 #include <ngx_config.h> |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
9 #include <ngx_core.h> |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
10 #include <ngx_http.h> |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
11 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
12 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
13 static u_char *ngx_http_v2_write_int(u_char *pos, ngx_uint_t prefix, |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
14 ngx_uint_t value); |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
15 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
16 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
17 u_char * |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
18 ngx_http_v2_string_encode(u_char *dst, u_char *src, size_t len, u_char *tmp, |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
19 ngx_uint_t lower) |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
20 { |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
21 size_t hlen; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
22 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
23 hlen = ngx_http_v2_huff_encode(src, len, tmp, lower); |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
24 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
25 if (hlen > 0) { |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
26 *dst = NGX_HTTP_V2_ENCODE_HUFF; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
27 dst = ngx_http_v2_write_int(dst, ngx_http_v2_prefix(7), hlen); |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
28 return ngx_cpymem(dst, tmp, hlen); |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
29 } |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
30 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
31 *dst = NGX_HTTP_V2_ENCODE_RAW; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
32 dst = ngx_http_v2_write_int(dst, ngx_http_v2_prefix(7), len); |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
33 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
34 if (lower) { |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
35 ngx_strlow(dst, src, len); |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
36 return dst + len; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
37 } |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
38 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
39 return ngx_cpymem(dst, src, len); |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
40 } |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
41 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
42 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
43 static u_char * |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
44 ngx_http_v2_write_int(u_char *pos, ngx_uint_t prefix, ngx_uint_t value) |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
45 { |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
46 if (value < prefix) { |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
47 *pos++ |= value; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
48 return pos; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
49 } |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
50 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
51 *pos++ |= prefix; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
52 value -= prefix; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
53 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
54 while (value >= 128) { |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
55 *pos++ = value % 128 + 128; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
56 value /= 128; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
57 } |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
58 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
59 *pos++ = (u_char) value; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
60 |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
61 return pos; |
87e9e4aabf1b
HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
62 } |