+++ /dev/null
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) Nginx, Inc.
- */
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_http.h>
-
-
-typedef struct {
- ngx_str_t before_body;
- ngx_str_t after_body;
-
- ngx_hash_t types;
- ngx_array_t *types_keys;
-} ngx_http_addition_conf_t;
-
-
-typedef struct {
- ngx_uint_t before_body_sent;
-} ngx_http_addition_ctx_t;
-
-
-static void *ngx_http_addition_create_conf(ngx_conf_t *cf);
-static char *ngx_http_addition_merge_conf(ngx_conf_t *cf, void *parent,
- void *child);
-static ngx_int_t ngx_http_addition_filter_init(ngx_conf_t *cf);
-
-
-static ngx_command_t ngx_http_addition_commands[] = {
-
- { ngx_string("add_before_body"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
- ngx_conf_set_str_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_addition_conf_t, before_body),
- NULL },
-
- { ngx_string("add_after_body"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
- ngx_conf_set_str_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_addition_conf_t, after_body),
- NULL },
-
- { ngx_string("addition_types"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
- ngx_http_types_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_addition_conf_t, types_keys),
- &ngx_http_html_default_types[0] },
-
- ngx_null_command
-};
-
-
-static ngx_http_module_t ngx_http_addition_filter_module_ctx = {
- NULL, /* preconfiguration */
- ngx_http_addition_filter_init, /* postconfiguration */
-
- NULL, /* create main configuration */
- NULL, /* init main configuration */
-
- NULL, /* create server configuration */
- NULL, /* merge server configuration */
-
- ngx_http_addition_create_conf, /* create location configuration */
- ngx_http_addition_merge_conf /* merge location configuration */
-};
-
-
-ngx_module_t ngx_http_addition_filter_module = {
- NGX_MODULE_V1,
- &ngx_http_addition_filter_module_ctx, /* module context */
- ngx_http_addition_commands, /* module directives */
- NGX_HTTP_MODULE, /* module type */
- NULL, /* init master */
- NULL, /* init module */
- NULL, /* init process */
- NULL, /* init thread */
- NULL, /* exit thread */
- NULL, /* exit process */
- NULL, /* exit master */
- NGX_MODULE_V1_PADDING
-};
-
-
-static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
-static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
-
-
-static ngx_int_t
-ngx_http_addition_header_filter(ngx_http_request_t *r)
-{
- ngx_http_addition_ctx_t *ctx;
- ngx_http_addition_conf_t *conf;
-
- if (r->headers_out.status != NGX_HTTP_OK || r != r->main) {
- return ngx_http_next_header_filter(r);
- }
-
- conf = ngx_http_get_module_loc_conf(r, ngx_http_addition_filter_module);
-
- if (conf->before_body.len == 0 && conf->after_body.len == 0) {
- return ngx_http_next_header_filter(r);
- }
-
- if (ngx_http_test_content_type(r, &conf->types) == NULL) {
- return ngx_http_next_header_filter(r);
- }
-
- ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_addition_ctx_t));
- if (ctx == NULL) {
- return NGX_ERROR;
- }
-
- ngx_http_set_ctx(r, ctx, ngx_http_addition_filter_module);
-
- ngx_http_clear_content_length(r);
- ngx_http_clear_accept_ranges(r);
- ngx_http_weak_etag(r);
-
- return ngx_http_next_header_filter(r);
-}
-
-
-static ngx_int_t
-ngx_http_addition_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
-{
- ngx_int_t rc;
- ngx_uint_t last;
- ngx_chain_t *cl;
- ngx_http_request_t *sr;
- ngx_http_addition_ctx_t *ctx;
- ngx_http_addition_conf_t *conf;
-
- if (in == NULL || r->header_only) {
- return ngx_http_next_body_filter(r, in);
- }
-
- ctx = ngx_http_get_module_ctx(r, ngx_http_addition_filter_module);
-
- if (ctx == NULL) {
- return ngx_http_next_body_filter(r, in);
- }
-
- conf = ngx_http_get_module_loc_conf(r, ngx_http_addition_filter_module);
-
- if (!ctx->before_body_sent) {
- ctx->before_body_sent = 1;
-
- if (conf->before_body.len) {
- if (ngx_http_subrequest(r, &conf->before_body, NULL, &sr, NULL, 0)
- != NGX_OK)
- {
- return NGX_ERROR;
- }
- }
- }
-
- if (conf->after_body.len == 0) {
- ngx_http_set_ctx(r, NULL, ngx_http_addition_filter_module);
- return ngx_http_next_body_filter(r, in);
- }
-
- last = 0;
-
- for (cl = in; cl; cl = cl->next) {
- if (cl->buf->last_buf) {
- cl->buf->last_buf = 0;
- cl->buf->last_in_chain = 1;
- cl->buf->sync = 1;
- last = 1;
- }
- }
-
- rc = ngx_http_next_body_filter(r, in);
-
- if (rc == NGX_ERROR || !last || conf->after_body.len == 0) {
- return rc;
- }
-
- if (ngx_http_subrequest(r, &conf->after_body, NULL, &sr, NULL, 0)
- != NGX_OK)
- {
- return NGX_ERROR;
- }
-
- ngx_http_set_ctx(r, NULL, ngx_http_addition_filter_module);
-
- return ngx_http_send_special(r, NGX_HTTP_LAST);
-}
-
-
-static ngx_int_t
-ngx_http_addition_filter_init(ngx_conf_t *cf)
-{
- ngx_http_next_header_filter = ngx_http_top_header_filter;
- ngx_http_top_header_filter = ngx_http_addition_header_filter;
-
- ngx_http_next_body_filter = ngx_http_top_body_filter;
- ngx_http_top_body_filter = ngx_http_addition_body_filter;
-
- return NGX_OK;
-}
-
-
-static void *
-ngx_http_addition_create_conf(ngx_conf_t *cf)
-{
- ngx_http_addition_conf_t *conf;
-
- conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_addition_conf_t));
- if (conf == NULL) {
- return NULL;
- }
-
- /*
- * set by ngx_pcalloc():
- *
- * conf->before_body = { 0, NULL };
- * conf->after_body = { 0, NULL };
- * conf->types = { NULL };
- * conf->types_keys = NULL;
- */
-
- return conf;
-}
-
-
-static char *
-ngx_http_addition_merge_conf(ngx_conf_t *cf, void *parent, void *child)
-{
- ngx_http_addition_conf_t *prev = parent;
- ngx_http_addition_conf_t *conf = child;
-
- ngx_conf_merge_str_value(conf->before_body, prev->before_body, "");
- ngx_conf_merge_str_value(conf->after_body, prev->after_body, "");
-
- if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types,
- &prev->types_keys, &prev->types,
- ngx_http_html_default_types)
- != NGX_OK)
- {
- return NGX_CONF_ERROR;
- }
-
- return NGX_CONF_OK;
-}
Code Review / tldk.git / blobdiff