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annotate src/http/modules/ngx_http_chunked_filter_module.c @ 7034:1b068a4e82d8

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Added support for trailers in HTTP responses. Example: ngx_table_elt_t *h; h = ngx_list_push(&r->headers_out.trailers); if (h == NULL) { return NGX_ERROR; } ngx_str_set(&h->key, "Fun"); ngx_str_set(&h->value, "with trailers"); h->hash = ngx_hash_key_lc(h->key.data, h->key.len); The code above adds "Fun: with trailers" trailer to the response. Modules that want to emit trailers must set r->expect_trailers = 1 in header filter, otherwise they might not be emitted for HTTP/1.1 responses that aren't already chunked. This change also adds $sent_trailer_* variables. Signed-off-by: Piotr Sikora <piotrsikora@google.com>
author Piotr Sikora <piotrsikora@google.com>
date Fri, 24 Mar 2017 03:37:34 -0700
parents f01ab2dbcfdc
children 46e3542d51b3
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441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 356
diff changeset
1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 356
diff changeset
2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 441
diff changeset
3 * Copyright (C) Igor Sysoev
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 4128
diff changeset
4 * Copyright (C) Nginx, Inc.
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 356
diff changeset
5 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 356
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6
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a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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7
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #include <ngx_config.h>
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9 #include <ngx_core.h>
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10 #include <ngx_http.h>
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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11
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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12
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
13 typedef struct {
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Maxim Dounin <mdounin@mdounin.ru>
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14 ngx_chain_t *free;
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Maxim Dounin <mdounin@mdounin.ru>
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15 ngx_chain_t *busy;
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parents: 3484
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16 } ngx_http_chunked_filter_ctx_t;
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17
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18
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7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 667
diff changeset
19 static ngx_int_t ngx_http_chunked_filter_init(ngx_conf_t *cf);
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Piotr Sikora <piotrsikora@google.com>
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20 static ngx_chain_t *ngx_http_chunked_create_trailers(ngx_http_request_t *r,
1b068a4e82d8 Added support for trailers in HTTP responses.
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21 ngx_http_chunked_filter_ctx_t *ctx);
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Igor Sysoev <igor@sysoev.ru>
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22
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
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23
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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24 static ngx_http_module_t ngx_http_chunked_filter_module_ctx = {
509
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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25 NULL, /* preconfiguration */
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26 ngx_http_chunked_filter_init, /* postconfiguration */
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4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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27
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a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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28 NULL, /* create main configuration */
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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29 NULL, /* init main configuration */
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30
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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31 NULL, /* create server configuration */
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32 NULL, /* merge server configuration */
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33
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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34 NULL, /* create location configuration */
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parents: 615
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35 NULL /* merge location configuration */
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36 };
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37
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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38
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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39 ngx_module_t ngx_http_chunked_filter_module = {
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9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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40 NGX_MODULE_V1,
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parents:
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41 &ngx_http_chunked_filter_module_ctx, /* module context */
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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42 NULL, /* module directives */
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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43 NGX_HTTP_MODULE, /* module type */
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b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
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44 NULL, /* init master */
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 667
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45 NULL, /* init module */
541
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
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46 NULL, /* init process */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
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47 NULL, /* init thread */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
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48 NULL, /* exit thread */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
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49 NULL, /* exit process */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
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50 NULL, /* exit master */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
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51 NGX_MODULE_V1_PADDING
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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52 };
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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53
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
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54
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
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55 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
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56 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
99
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Igor Sysoev <igor@sysoev.ru>
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57
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
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58
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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59 static ngx_int_t
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60 ngx_http_chunked_header_filter(ngx_http_request_t *r)
99
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Igor Sysoev <igor@sysoev.ru>
parents:
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61 {
4113
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62 ngx_http_core_loc_conf_t *clcf;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
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63 ngx_http_chunked_filter_ctx_t *ctx;
3484
81457372d938 chunked_transfer_encoding
Igor Sysoev <igor@sysoev.ru>
parents: 3411
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64
615
5ef026a2ac74 nginx-0.3.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 597
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65 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED
5ef026a2ac74 nginx-0.3.29-RELEASE import
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parents: 597
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66 || r->headers_out.status == NGX_HTTP_NO_CONTENT
5072
7fa7e60a7f66 Proxy: support for connection upgrade (101 Switching Protocols).
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
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67 || r->headers_out.status < NGX_HTTP_OK
3331
e0bc43a52382 backout r3325: postpone filter is a body only filter
Igor Sysoev <igor@sysoev.ru>
parents: 3324
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68 || r != r->main
6306
b1858fc47e3b Style: unified request method checks.
Ruslan Ermilov <ru@nginx.com>
parents: 5072
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69 || r->method == NGX_HTTP_HEAD)
615
5ef026a2ac74 nginx-0.3.29-RELEASE import
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parents: 597
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70 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
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parents: 153
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71 return ngx_http_next_header_filter(r);
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e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 113
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72 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 113
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73
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Piotr Sikora <piotrsikora@google.com>
parents: 6480
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74 if (r->headers_out.content_length_n == -1
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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75 || r->expect_trailers)
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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76 {
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77 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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78
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79 if (r->http_version >= NGX_HTTP_VERSION_11
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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80 && clcf->chunked_transfer_encoding)
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81 {
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82 if (r->expect_trailers) {
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83 ngx_http_clear_content_length(r);
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84 }
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85
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86 r->chunked = 1;
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87
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88 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_chunked_filter_ctx_t));
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parents: 6480
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89 if (ctx == NULL) {
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Piotr Sikora <piotrsikora@google.com>
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90 return NGX_ERROR;
1b068a4e82d8 Added support for trailers in HTTP responses.
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91 }
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92
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93 ngx_http_set_ctx(r, ctx, ngx_http_chunked_filter_module);
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94
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95 } else if (r->headers_out.content_length_n == -1) {
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96 r->keepalive = 0;
99
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97 }
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98 }
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99
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100 return ngx_http_next_header_filter(r);
99
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101 }
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102
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
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103
501
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Igor Sysoev <igor@sysoev.ru>
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104 static ngx_int_t
d4ea69372b94 nginx-0.1.25-RELEASE import
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105 ngx_http_chunked_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
99
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parents:
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106 {
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Maxim Dounin <mdounin@mdounin.ru>
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107 u_char *chunk;
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Maxim Dounin <mdounin@mdounin.ru>
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108 off_t size;
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Maxim Dounin <mdounin@mdounin.ru>
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109 ngx_int_t rc;
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Maxim Dounin <mdounin@mdounin.ru>
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110 ngx_buf_t *b;
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Maxim Dounin <mdounin@mdounin.ru>
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111 ngx_chain_t *out, *cl, *tl, **ll;
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parents: 3484
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112 ngx_http_chunked_filter_ctx_t *ctx;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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113
483
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 473
diff changeset
114 if (in == NULL || !r->chunked || r->header_only) {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
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parents: 153
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115 return ngx_http_next_body_filter(r, in);
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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116 }
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
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117
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diff changeset
118 ctx = ngx_http_get_module_ctx(r, ngx_http_chunked_filter_module);
a28ba1cdec27 Buffers reuse in chunked filter.
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parents: 3484
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119
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Maxim Dounin <mdounin@mdounin.ru>
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120 out = NULL;
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Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
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121 ll = &out;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
122
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
123 size = 0;
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
124 cl = in;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
125
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
126 for ( ;; ) {
336
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
127 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
6480
f01ab2dbcfdc Fixed logging.
Sergey Kandaurov <pluknet@nginx.com>
parents: 6306
diff changeset
128 "http chunk: %O", ngx_buf_size(cl->buf));
336
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
129
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 337
diff changeset
130 size += ngx_buf_size(cl->buf);
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131
667
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 633
diff changeset
132 if (cl->buf->flush
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 633
diff changeset
133 || cl->buf->sync
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 633
diff changeset
134 || ngx_buf_in_memory(cl->buf)
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 633
diff changeset
135 || cl->buf->in_file)
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 633
diff changeset
136 {
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
137 tl = ngx_alloc_chain_link(r->pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
138 if (tl == NULL) {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
139 return NGX_ERROR;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
140 }
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
141
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
142 tl->buf = cl->buf;
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
143 *ll = tl;
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
144 ll = &tl->next;
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
145 }
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
147 if (cl->next == NULL) {
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148 break;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
149 }
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
150
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
151 cl = cl->next;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152 }
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153
336
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
154 if (size) {
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
155 tl = ngx_chain_get_free_buf(r->pool, &ctx->free);
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
156 if (tl == NULL) {
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
157 return NGX_ERROR;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
158 }
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
159
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
160 b = tl->buf;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
161 chunk = b->start;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
162
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
163 if (chunk == NULL) {
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
164 /* the "0000000000000000" is 64-bit hexadecimal string */
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
165
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
166 chunk = ngx_palloc(r->pool, sizeof("0000000000000000" CRLF) - 1);
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
167 if (chunk == NULL) {
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
168 return NGX_ERROR;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
169 }
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
170
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
171 b->start = chunk;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
172 b->end = chunk + sizeof("0000000000000000" CRLF) - 1;
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
173 }
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
174
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
175 b->tag = (ngx_buf_tag_t) &ngx_http_chunked_filter_module;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
176 b->memory = 0;
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
177 b->temporary = 1;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
178 b->pos = chunk;
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
179 b->last = ngx_sprintf(chunk, "%xO" CRLF, size);
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
180
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
181 tl->next = out;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
182 out = tl;
336
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
183 }
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 337
diff changeset
185 if (cl->buf->last_buf) {
7034
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
186 tl = ngx_http_chunked_create_trailers(r, ctx);
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
187 if (tl == NULL) {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
188 return NGX_ERROR;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
189 }
4128
4b0b0e77dc3d Trailing space fix.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4114
diff changeset
190
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 337
diff changeset
191 cl->buf->last_buf = 0;
336
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
192
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
193 *ll = tl;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
194
336
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
195 if (size == 0) {
7034
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
196 tl->buf->pos += 2;
336
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
197 }
ca9a7f8c86da nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
198
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
199 } else if (size > 0) {
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
200 tl = ngx_chain_get_free_buf(r->pool, &ctx->free);
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
201 if (tl == NULL) {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
202 return NGX_ERROR;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
203 }
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
204
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
205 b = tl->buf;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
206
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
207 b->tag = (ngx_buf_tag_t) &ngx_http_chunked_filter_module;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
208 b->temporary = 0;
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 337
diff changeset
209 b->memory = 1;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 337
diff changeset
210 b->pos = (u_char *) CRLF;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 337
diff changeset
211 b->last = b->pos + 2;
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
212
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
213 *ll = tl;
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
214
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
215 } else {
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
216 *ll = NULL;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
217 }
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
219 rc = ngx_http_next_body_filter(r, out);
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220
4114
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4113
diff changeset
221 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out,
4113
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
222 (ngx_buf_tag_t) &ngx_http_chunked_filter_module);
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
223
a28ba1cdec27 Buffers reuse in chunked filter.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3484
diff changeset
224 return rc;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
225 }
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
226
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227
7034
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
228 static ngx_chain_t *
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
229 ngx_http_chunked_create_trailers(ngx_http_request_t *r,
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
230 ngx_http_chunked_filter_ctx_t *ctx)
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
231 {
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
232 size_t len;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
233 ngx_buf_t *b;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
234 ngx_uint_t i;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
235 ngx_chain_t *cl;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
236 ngx_list_part_t *part;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
237 ngx_table_elt_t *header;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
238
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
239 len = 0;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
240
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
241 part = &r->headers_out.trailers.part;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
242 header = part->elts;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
243
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
244 for (i = 0; /* void */; i++) {
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
245
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
246 if (i >= part->nelts) {
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
247 if (part->next == NULL) {
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
248 break;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
249 }
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
250
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
251 part = part->next;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
252 header = part->elts;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
253 i = 0;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
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254 }
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255
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256 if (header[i].hash == 0) {
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257 continue;
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258 }
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259
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260 len += header[i].key.len + sizeof(": ") - 1
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261 + header[i].value.len + sizeof(CRLF) - 1;
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262 }
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263
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264 cl = ngx_chain_get_free_buf(r->pool, &ctx->free);
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265 if (cl == NULL) {
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266 return NULL;
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267 }
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268
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269 b = cl->buf;
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270
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271 b->tag = (ngx_buf_tag_t) &ngx_http_chunked_filter_module;
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272 b->temporary = 0;
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273 b->memory = 1;
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274 b->last_buf = 1;
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275
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276 if (len == 0) {
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277 b->pos = (u_char *) CRLF "0" CRLF CRLF;
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278 b->last = b->pos + sizeof(CRLF "0" CRLF CRLF) - 1;
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279 return cl;
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280 }
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281
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282 len += sizeof(CRLF "0" CRLF CRLF) - 1;
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283
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284 b->pos = ngx_palloc(r->pool, len);
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285 if (b->pos == NULL) {
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286 return NULL;
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287 }
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288
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289 b->last = b->pos;
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290
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291 *b->last++ = CR; *b->last++ = LF;
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292 *b->last++ = '0';
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293 *b->last++ = CR; *b->last++ = LF;
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294
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295 part = &r->headers_out.trailers.part;
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296 header = part->elts;
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297
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298 for (i = 0; /* void */; i++) {
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299
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300 if (i >= part->nelts) {
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diff changeset
301 if (part->next == NULL) {
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diff changeset
302 break;
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303 }
1b068a4e82d8 Added support for trailers in HTTP responses.
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304
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305 part = part->next;
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diff changeset
306 header = part->elts;
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diff changeset
307 i = 0;
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diff changeset
308 }
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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diff changeset
309
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
310 if (header[i].hash == 0) {
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
311 continue;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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diff changeset
312 }
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
313
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
314 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
315 "http trailer: \"%V: %V\"",
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
316 &header[i].key, &header[i].value);
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diff changeset
317
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
318 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
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diff changeset
319 *b->last++ = ':'; *b->last++ = ' ';
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Piotr Sikora <piotrsikora@google.com>
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diff changeset
320
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
321 b->last = ngx_copy(b->last, header[i].value.data, header[i].value.len);
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Piotr Sikora <piotrsikora@google.com>
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diff changeset
322 *b->last++ = CR; *b->last++ = LF;
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Piotr Sikora <piotrsikora@google.com>
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diff changeset
323 }
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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diff changeset
324
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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diff changeset
325 *b->last++ = CR; *b->last++ = LF;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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diff changeset
326
1b068a4e82d8 Added support for trailers in HTTP responses.
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diff changeset
327 return cl;
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
328 }
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
parents: 6480
diff changeset
329
1b068a4e82d8 Added support for trailers in HTTP responses.
Piotr Sikora <piotrsikora@google.com>
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diff changeset
330
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
331 static ngx_int_t
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 667
diff changeset
332 ngx_http_chunked_filter_init(ngx_conf_t *cf)
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
333 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
334 ngx_http_next_header_filter = ngx_http_top_header_filter;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
335 ngx_http_top_header_filter = ngx_http_chunked_header_filter;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
336
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
337 ngx_http_next_body_filter = ngx_http_top_body_filter;
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
338 ngx_http_top_body_filter = ngx_http_chunked_body_filter;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
339
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
340 return NGX_OK;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
341 }