Mercurial > hg > ngx_http_compose_filter_module

annotate ngx_http_compose_filter_module.c @ 8:3fb3e1cbffd5 default tip

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Some tests.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 14 Jul 2009 03:18:57 +0400
parents 88272d0f29f9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Copyright (C) Maxim Dounin
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4 */
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5
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6 #include <ngx_config.h>
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7 #include <ngx_core.h>
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8 #include <ngx_http.h>
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9
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10
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11 typedef struct {
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12 ngx_flag_t enable;
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13 } ngx_http_compose_conf_t;
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14
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16 typedef struct {
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17 ngx_uint_t done;
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18 ngx_array_t parts;
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19 } ngx_http_compose_ctx_t;
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20
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21
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22 static void *ngx_http_compose_create_conf(ngx_conf_t *cf);
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23 static char *ngx_http_compose_merge_conf(ngx_conf_t *cf, void *parent,
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24 void *child);
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25 static ngx_int_t ngx_http_compose_init(ngx_conf_t *cf);
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26 static ngx_int_t ngx_http_compose_body_init(ngx_conf_t *cf);
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27
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28
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29 static ngx_command_t ngx_http_compose_commands[] = {
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30
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31 { ngx_string("compose"),
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32 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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33 ngx_conf_set_flag_slot,
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34 NGX_HTTP_LOC_CONF_OFFSET,
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35 offsetof(ngx_http_compose_conf_t, enable),
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36 NULL },
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37
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38 ngx_null_command
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39 };
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40
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41
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42 static ngx_http_module_t ngx_http_compose_module_ctx = {
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43 NULL, /* preconfiguration */
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44 ngx_http_compose_init, /* postconfiguration */
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45
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46 NULL, /* create main configuration */
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47 NULL, /* init main configuration */
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48
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49 NULL, /* create server configuration */
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50 NULL, /* merge server configuration */
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51
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52 ngx_http_compose_create_conf, /* create location configuration */
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53 ngx_http_compose_merge_conf /* merge location configuration */
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54 };
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55
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56
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57 ngx_module_t ngx_http_compose_filter_module = {
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58 NGX_MODULE_V1,
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59 &ngx_http_compose_module_ctx, /* module context */
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60 ngx_http_compose_commands, /* module directives */
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61 NGX_HTTP_MODULE, /* module type */
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62 NULL, /* init master */
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63 NULL, /* init module */
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64 NULL, /* init process */
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65 NULL, /* init thread */
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66 NULL, /* exit thread */
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67 NULL, /* exit process */
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68 NULL, /* exit master */
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69 NGX_MODULE_V1_PADDING
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70 };
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71
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72
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73 static ngx_http_module_t ngx_http_compose_body_module_ctx = {
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74 NULL, /* preconfiguration */
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75 ngx_http_compose_body_init, /* postconfiguration */
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76
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77 NULL, /* create main configuration */
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78 NULL, /* init main configuration */
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79
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80 NULL, /* create server configuration */
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81 NULL, /* merge server configuration */
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82
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83 NULL, /* create location configuration */
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84 NULL /* merge location configuration */
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85 };
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86
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87
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88 ngx_module_t ngx_http_compose_body_filter_module = {
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89 NGX_MODULE_V1,
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90 &ngx_http_compose_body_module_ctx, /* module context */
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91 NULL, /* module directives */
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92 NGX_HTTP_MODULE, /* module type */
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93 NULL, /* init master */
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94 NULL, /* init module */
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95 NULL, /* init process */
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96 NULL, /* init thread */
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97 NULL, /* exit thread */
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98 NULL, /* exit process */
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99 NULL, /* exit master */
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100 NGX_MODULE_V1_PADDING
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101 };
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102
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103
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104 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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105 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
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106
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107
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108 static ngx_int_t
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109 ngx_http_compose_header_filter(ngx_http_request_t *r)
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110 {
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111 off_t len;
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112 ngx_uint_t i;
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113 ngx_str_t *uri;
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114 ngx_list_part_t *part;
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115 ngx_table_elt_t *header;
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116 ngx_http_compose_conf_t *conf;
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117 ngx_http_compose_ctx_t *ctx;
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118
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119 conf = ngx_http_get_module_loc_conf(r, ngx_http_compose_filter_module);
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120
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121 if (!conf->enable) {
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122 return ngx_http_next_header_filter(r);
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123 }
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124
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125 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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126 "compose header filter");
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127
1
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128 /* create context */
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129
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130 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_compose_ctx_t));
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131 if (ctx == NULL) {
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132 return NGX_ERROR;
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133 }
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134
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135 if (ngx_array_init(&ctx->parts, r->pool, 1, sizeof(ngx_str_t))
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136 == NGX_ERROR)
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137 {
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138 return NGX_ERROR;
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139 }
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140
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141
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142 /*
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parents: 0
diff changeset
143 * Collect all X-Compose headers (or combined one?), store in context
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parents: 0
diff changeset
144 * for our body filter to make actual subrequests. Hide them from the
ba5471a3c988 First working code, still in progress.
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parents: 0
diff changeset
145 * response.
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parents: 0
diff changeset
146 */
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parents: 0
diff changeset
147
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parents: 0
diff changeset
148 part = &r->headers_out.headers.part;
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parents: 0
diff changeset
149 header = part->elts;
6
27628b3310ab Better handle absence of controlling headers.
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parents: 5
diff changeset
150 len = -1;
1
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parents: 0
diff changeset
151
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parents: 0
diff changeset
152 for (i = 0; /* void */; i++) {
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parents: 0
diff changeset
153
ba5471a3c988 First working code, still in progress.
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parents: 0
diff changeset
154 if (i >= part->nelts) {
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parents: 0
diff changeset
155 if (part->next == NULL) {
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
156 break;
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
157 }
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parents: 0
diff changeset
158
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parents: 0
diff changeset
159 part = part->next;
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parents: 0
diff changeset
160 header = part->elts;
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parents: 0
diff changeset
161 i = 0;
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parents: 0
diff changeset
162 }
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parents: 0
diff changeset
163
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
164 if (header[i].hash == 0) {
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
165 continue;
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
166 }
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
167
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
168 if (header[i].key.len == sizeof("X-Compose-Length") - 1
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parents: 0
diff changeset
169 && ngx_strncasecmp(header[i].key.data, "X-Compose-Length",
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
170 sizeof("X-Compose-Length") - 1)
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
171 == 0)
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parents: 0
diff changeset
172 {
5
fc206607251c Fix compilation without debug.
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parents: 4
diff changeset
173 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1
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parents: 0
diff changeset
174 "compose body filter: bingo, %V, %V",
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
175 &header[i].key, &header[i].value);
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
176
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
177 header[i].hash = 0;
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parents: 0
diff changeset
178
6
27628b3310ab Better handle absence of controlling headers.
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parents: 5
diff changeset
179 len = ngx_atoof(header[i].value.data, header[i].value.len);
1
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parents: 0
diff changeset
180 }
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parents: 0
diff changeset
181
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parents: 0
diff changeset
182 if (header[i].key.len == sizeof("X-Compose") - 1
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parents: 0
diff changeset
183 && ngx_strncasecmp(header[i].key.data, "X-Compose",
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
184 sizeof("X-Compose") - 1)
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
185 == 0)
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parents: 0
diff changeset
186 {
5
fc206607251c Fix compilation without debug.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4
diff changeset
187 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1
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parents: 0
diff changeset
188 "compose body filter: bingo, %V, %V",
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
189 &header[i].key, &header[i].value);
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
190
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
191 header[i].hash = 0;
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parents: 0
diff changeset
192
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
193 /*
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
194 * XXX multiple headers with the same name must be combinable,
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
195 * see RFC 2616 4.2 Message Headers
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parents: 0
diff changeset
196 */
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parents: 0
diff changeset
197
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parents: 0
diff changeset
198 uri = ngx_array_push(&ctx->parts);
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parents: 0
diff changeset
199 if (uri == NULL) {
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parents: 0
diff changeset
200 return NGX_ERROR;
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parents: 0
diff changeset
201 }
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parents: 0
diff changeset
202
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parents: 0
diff changeset
203 *uri = header[i].value;
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parents: 0
diff changeset
204 }
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parents: 0
diff changeset
205 }
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parents: 0
diff changeset
206
6
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
207 if (ctx->parts.nelts == 0) {
27628b3310ab Better handle absence of controlling headers.
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parents: 5
diff changeset
208 return ngx_http_next_header_filter(r);
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
209 }
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
210
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
211 r->headers_out.content_length_n = len;
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
212
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
213 if (r->headers_out.content_length) {
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
214 r->headers_out.content_length->hash = 0;
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
215 r->headers_out.content_length = NULL;
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
216 }
1
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parents: 0
diff changeset
217
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
218 ngx_http_set_ctx(r, ctx, ngx_http_compose_filter_module);
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parents: 0
diff changeset
219
6
27628b3310ab Better handle absence of controlling headers.
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parents: 5
diff changeset
220 if (len != -1) {
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
221 r->allow_ranges = 1;
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
222 r->late_ranges = 1;
7
88272d0f29f9 Make sure upstream's status line won't be reused.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6
diff changeset
223 r->headers_out.status_line.len = 0;
6
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
224
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
225 } else {
27628b3310ab Better handle absence of controlling headers.
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parents: 5
diff changeset
226 ngx_http_clear_accept_ranges(r);
27628b3310ab Better handle absence of controlling headers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5
diff changeset
227 }
4
37c6f2e0f278 Allow ranges and use new late_ranges functionality.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2
diff changeset
228
0
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
229 return ngx_http_next_header_filter(r);
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
230 }
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
231
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
232
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
233 static ngx_int_t
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
234 ngx_http_compose_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
235 {
1
ba5471a3c988 First working code, still in progress.
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parents: 0
diff changeset
236 ngx_str_t *uri, args;
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parents: 0
diff changeset
237 ngx_int_t rc;
2
ed63d0bd4d14 Correctly handle complex body filtering.
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parents: 1
diff changeset
238 ngx_uint_t i, flags, last;
1
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
239 ngx_http_request_t *sr;
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Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
240 ngx_http_compose_ctx_t *ctx;
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
241
0
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
242 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
243 "compose body filter");
6535d94ae07d Compose filter module skeleton, currently does nothing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
244
1
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
245 ctx = ngx_http_get_module_ctx(r, ngx_http_compose_filter_module);
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
246
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
247 if (ctx == NULL) {
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
248 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
249 "compose body filter: no ctx");
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
250 return ngx_http_next_body_filter(r, in);
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
251 }
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
252
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
253 if (ctx->done) {
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
254 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
255 "compose body filter: done");
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
256 return ngx_http_next_body_filter(r, in);
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
257 }
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
258
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
259 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
260 "compose body filter, doing work");
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
261
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
262 /*
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
263 * Ignore body that comes to us, replace it with subrequests.
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
264 */
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
265
2
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
266 last = 0;
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
267
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
268 for ( ; in; in = in->next) {
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
269 in->buf->pos = in->buf->last;
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
270 if (in->buf->last_buf) {
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
271 last = 1;
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
272 in->buf->last_buf = 0;
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
273 }
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
274 }
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
275
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
276 if (!last) {
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
277 return NGX_OK;
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
278 }
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
279
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
280 ctx->done = 1;
ed63d0bd4d14 Correctly handle complex body filtering.
Maxim Dounin <mdounin@mdounin.ru>
parents: 1
diff changeset
281
1
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
282 uri = ctx->parts.elts;
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
283
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
284 for (i = 0; i < ctx->parts.nelts; i++) {
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
285
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
286 args.len = 0;
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
287 args.data = NULL;
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
288 flags = 0;
ba5471a3c988 First working code, still in progress.
Maxim Dounin <mdounin@mdounin.ru>
parents: 0
diff changeset
289
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290 if (ngx_http_parse_unsafe_uri(r, &uri[i], &args, &flags) != NGX_OK) {
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291 return NGX_ERROR;
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292 }
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293
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294 rc = ngx_http_subrequest(r, &uri[i], &args, &sr, NULL, flags);
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295
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296 if (rc == NGX_ERROR || rc == NGX_DONE) {
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297 return rc;
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298 }
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299 }
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300
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301 return ngx_http_send_special(r, NGX_HTTP_LAST);
0
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302 }
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303
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304
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305 static void *
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306 ngx_http_compose_create_conf(ngx_conf_t *cf)
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307 {
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308 ngx_http_compose_conf_t *conf;
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309
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310 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_compose_conf_t));
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311 if (conf == NULL) {
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312 return NGX_CONF_ERROR;
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313 }
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314
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315 conf->enable = NGX_CONF_UNSET;
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316
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317 return conf;
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318 }
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319
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320
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321 static char *
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322 ngx_http_compose_merge_conf(ngx_conf_t *cf, void *parent, void *child)
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323 {
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324 ngx_http_compose_conf_t *prev = parent;
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325 ngx_http_compose_conf_t *conf = child;
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326
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327 ngx_conf_merge_value(conf->enable, prev->enable, 0);
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328
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329 return NGX_CONF_OK;
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330 }
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331
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332
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333 static ngx_int_t
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334 ngx_http_compose_init(ngx_conf_t *cf)
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335 {
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336 ngx_http_next_header_filter = ngx_http_top_header_filter;
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337 ngx_http_top_header_filter = ngx_http_compose_header_filter;
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338
1
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339 return NGX_OK;
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340 }
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341
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342
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343 static ngx_int_t
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344 ngx_http_compose_body_init(ngx_conf_t *cf)
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345 {
0
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346 ngx_http_next_body_filter = ngx_http_top_body_filter;
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347 ngx_http_top_body_filter = ngx_http_compose_body_filter;
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348
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349 return NGX_OK;
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350 }