mirror of
https://github.com/nginx/nginx.git
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145 lines
4.1 KiB
C
145 lines
4.1 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) Nginx, Inc.
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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static char *ngx_http_set_status(ngx_conf_t *cf, ngx_command_t *cmd,
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void *conf);
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static ngx_command_t ngx_http_status_commands[] = {
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{ ngx_string("stub_status"),
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NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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ngx_http_set_status,
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0,
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0,
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NULL },
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ngx_null_command
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};
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static ngx_http_module_t ngx_http_stub_status_module_ctx = {
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NULL, /* preconfiguration */
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NULL, /* postconfiguration */
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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NULL, /* create server configuration */
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NULL, /* merge server configuration */
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NULL, /* create location configuration */
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NULL /* merge location configuration */
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};
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ngx_module_t ngx_http_stub_status_module = {
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NGX_MODULE_V1,
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&ngx_http_stub_status_module_ctx, /* module context */
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ngx_http_status_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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NULL, /* init master */
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NULL, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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static ngx_int_t ngx_http_status_handler(ngx_http_request_t *r)
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{
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size_t size;
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ngx_int_t rc;
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ngx_buf_t *b;
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ngx_chain_t out;
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ngx_atomic_int_t ap, hn, ac, rq, rd, wr;
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if (r->method != NGX_HTTP_GET && r->method != NGX_HTTP_HEAD) {
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return NGX_HTTP_NOT_ALLOWED;
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}
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rc = ngx_http_discard_request_body(r);
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if (rc != NGX_OK) {
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return rc;
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}
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ngx_str_set(&r->headers_out.content_type, "text/plain");
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if (r->method == NGX_HTTP_HEAD) {
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r->headers_out.status = NGX_HTTP_OK;
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rc = ngx_http_send_header(r);
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if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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return rc;
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}
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}
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size = sizeof("Active connections: \n") + NGX_ATOMIC_T_LEN
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+ sizeof("server accepts handled requests\n") - 1
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+ 6 + 3 * NGX_ATOMIC_T_LEN
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+ sizeof("Reading: Writing: Waiting: \n") + 3 * NGX_ATOMIC_T_LEN;
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b = ngx_create_temp_buf(r->pool, size);
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if (b == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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out.buf = b;
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out.next = NULL;
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ap = *ngx_stat_accepted;
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hn = *ngx_stat_handled;
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ac = *ngx_stat_active;
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rq = *ngx_stat_requests;
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rd = *ngx_stat_reading;
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wr = *ngx_stat_writing;
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b->last = ngx_sprintf(b->last, "Active connections: %uA \n", ac);
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b->last = ngx_cpymem(b->last, "server accepts handled requests\n",
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sizeof("server accepts handled requests\n") - 1);
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b->last = ngx_sprintf(b->last, " %uA %uA %uA \n", ap, hn, rq);
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b->last = ngx_sprintf(b->last, "Reading: %uA Writing: %uA Waiting: %uA \n",
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rd, wr, ac - (rd + wr));
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r->headers_out.status = NGX_HTTP_OK;
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r->headers_out.content_length_n = b->last - b->pos;
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b->last_buf = (r == r->main) ? 1 : 0;
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rc = ngx_http_send_header(r);
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if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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return rc;
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}
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return ngx_http_output_filter(r, &out);
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}
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static char *ngx_http_set_status(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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{
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ngx_http_core_loc_conf_t *clcf;
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clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
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clcf->handler = ngx_http_status_handler;
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return NGX_CONF_OK;
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}
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