mirror of
https://github.com/nginx/nginx.git
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9ad18e43ac
If of.err is 0, it means that there was a memory allocation error and no further logging and/or processing is needed. The of.failed string can be only accessed if of.err is not 0.
1544 lines
39 KiB
C
1544 lines
39 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_stream.h>
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#if (NGX_ZLIB)
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#include <zlib.h>
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#endif
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typedef struct ngx_stream_log_op_s ngx_stream_log_op_t;
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typedef u_char *(*ngx_stream_log_op_run_pt) (ngx_stream_session_t *s,
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u_char *buf, ngx_stream_log_op_t *op);
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typedef size_t (*ngx_stream_log_op_getlen_pt) (ngx_stream_session_t *s,
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uintptr_t data);
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struct ngx_stream_log_op_s {
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size_t len;
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ngx_stream_log_op_getlen_pt getlen;
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ngx_stream_log_op_run_pt run;
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uintptr_t data;
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};
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typedef struct {
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ngx_str_t name;
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ngx_array_t *flushes;
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ngx_array_t *ops; /* array of ngx_stream_log_op_t */
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} ngx_stream_log_fmt_t;
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typedef struct {
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ngx_array_t formats; /* array of ngx_stream_log_fmt_t */
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} ngx_stream_log_main_conf_t;
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typedef struct {
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u_char *start;
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u_char *pos;
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u_char *last;
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ngx_event_t *event;
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ngx_msec_t flush;
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ngx_int_t gzip;
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} ngx_stream_log_buf_t;
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typedef struct {
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ngx_array_t *lengths;
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ngx_array_t *values;
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} ngx_stream_log_script_t;
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typedef struct {
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ngx_open_file_t *file;
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ngx_stream_log_script_t *script;
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time_t disk_full_time;
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time_t error_log_time;
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ngx_syslog_peer_t *syslog_peer;
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ngx_stream_log_fmt_t *format;
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ngx_stream_complex_value_t *filter;
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} ngx_stream_log_t;
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typedef struct {
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ngx_array_t *logs; /* array of ngx_stream_log_t */
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ngx_open_file_cache_t *open_file_cache;
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time_t open_file_cache_valid;
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ngx_uint_t open_file_cache_min_uses;
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ngx_uint_t off; /* unsigned off:1 */
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} ngx_stream_log_srv_conf_t;
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typedef struct {
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ngx_str_t name;
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size_t len;
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ngx_stream_log_op_run_pt run;
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} ngx_stream_log_var_t;
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static void ngx_stream_log_write(ngx_stream_session_t *s, ngx_stream_log_t *log,
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u_char *buf, size_t len);
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static ssize_t ngx_stream_log_script_write(ngx_stream_session_t *s,
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ngx_stream_log_script_t *script, u_char **name, u_char *buf, size_t len);
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#if (NGX_ZLIB)
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static ssize_t ngx_stream_log_gzip(ngx_fd_t fd, u_char *buf, size_t len,
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ngx_int_t level, ngx_log_t *log);
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static void *ngx_stream_log_gzip_alloc(void *opaque, u_int items, u_int size);
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static void ngx_stream_log_gzip_free(void *opaque, void *address);
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#endif
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static void ngx_stream_log_flush(ngx_open_file_t *file, ngx_log_t *log);
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static void ngx_stream_log_flush_handler(ngx_event_t *ev);
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static ngx_int_t ngx_stream_log_variable_compile(ngx_conf_t *cf,
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ngx_stream_log_op_t *op, ngx_str_t *value, ngx_uint_t json);
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static size_t ngx_stream_log_variable_getlen(ngx_stream_session_t *s,
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uintptr_t data);
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static u_char *ngx_stream_log_variable(ngx_stream_session_t *s, u_char *buf,
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ngx_stream_log_op_t *op);
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static uintptr_t ngx_stream_log_escape(u_char *dst, u_char *src, size_t size);
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static size_t ngx_stream_log_json_variable_getlen(ngx_stream_session_t *s,
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uintptr_t data);
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static u_char *ngx_stream_log_json_variable(ngx_stream_session_t *s,
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u_char *buf, ngx_stream_log_op_t *op);
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static void *ngx_stream_log_create_main_conf(ngx_conf_t *cf);
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static void *ngx_stream_log_create_srv_conf(ngx_conf_t *cf);
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static char *ngx_stream_log_merge_srv_conf(ngx_conf_t *cf, void *parent,
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void *child);
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static char *ngx_stream_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd,
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void *conf);
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static char *ngx_stream_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd,
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void *conf);
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static char *ngx_stream_log_compile_format(ngx_conf_t *cf,
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ngx_array_t *flushes, ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s);
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static char *ngx_stream_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd,
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void *conf);
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static ngx_int_t ngx_stream_log_init(ngx_conf_t *cf);
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static ngx_command_t ngx_stream_log_commands[] = {
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{ ngx_string("log_format"),
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NGX_STREAM_MAIN_CONF|NGX_CONF_2MORE,
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ngx_stream_log_set_format,
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NGX_STREAM_MAIN_CONF_OFFSET,
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0,
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NULL },
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{ ngx_string("access_log"),
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NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE,
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ngx_stream_log_set_log,
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NGX_STREAM_SRV_CONF_OFFSET,
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0,
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NULL },
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{ ngx_string("open_log_file_cache"),
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NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1234,
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ngx_stream_log_open_file_cache,
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NGX_STREAM_SRV_CONF_OFFSET,
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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_stream_module_t ngx_stream_log_module_ctx = {
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NULL, /* preconfiguration */
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ngx_stream_log_init, /* postconfiguration */
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ngx_stream_log_create_main_conf, /* create main configuration */
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NULL, /* init main configuration */
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ngx_stream_log_create_srv_conf, /* create server configuration */
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ngx_stream_log_merge_srv_conf /* merge server configuration */
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};
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ngx_module_t ngx_stream_log_module = {
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NGX_MODULE_V1,
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&ngx_stream_log_module_ctx, /* module context */
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ngx_stream_log_commands, /* module directives */
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NGX_STREAM_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
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ngx_stream_log_handler(ngx_stream_session_t *s)
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{
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u_char *line, *p;
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size_t len, size;
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ssize_t n;
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ngx_str_t val;
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ngx_uint_t i, l;
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ngx_stream_log_t *log;
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ngx_stream_log_op_t *op;
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ngx_stream_log_buf_t *buffer;
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ngx_stream_log_srv_conf_t *lscf;
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ngx_log_debug0(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
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"stream log handler");
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lscf = ngx_stream_get_module_srv_conf(s, ngx_stream_log_module);
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if (lscf->off || lscf->logs == NULL) {
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return NGX_OK;
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}
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log = lscf->logs->elts;
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for (l = 0; l < lscf->logs->nelts; l++) {
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if (log[l].filter) {
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if (ngx_stream_complex_value(s, log[l].filter, &val) != NGX_OK) {
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return NGX_ERROR;
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}
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if (val.len == 0 || (val.len == 1 && val.data[0] == '0')) {
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continue;
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}
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}
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if (ngx_time() == log[l].disk_full_time) {
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/*
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* on FreeBSD writing to a full filesystem with enabled softupdates
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* may block process for much longer time than writing to non-full
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* filesystem, so we skip writing to a log for one second
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*/
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continue;
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}
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ngx_stream_script_flush_no_cacheable_variables(s,
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log[l].format->flushes);
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len = 0;
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op = log[l].format->ops->elts;
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for (i = 0; i < log[l].format->ops->nelts; i++) {
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if (op[i].len == 0) {
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len += op[i].getlen(s, op[i].data);
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} else {
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len += op[i].len;
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}
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}
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if (log[l].syslog_peer) {
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/* length of syslog's PRI and HEADER message parts */
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len += sizeof("<255>Jan 01 00:00:00 ") - 1
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+ ngx_cycle->hostname.len + 1
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+ log[l].syslog_peer->tag.len + 2;
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goto alloc_line;
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}
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len += NGX_LINEFEED_SIZE;
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buffer = log[l].file ? log[l].file->data : NULL;
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if (buffer) {
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if (len > (size_t) (buffer->last - buffer->pos)) {
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ngx_stream_log_write(s, &log[l], buffer->start,
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buffer->pos - buffer->start);
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buffer->pos = buffer->start;
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}
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if (len <= (size_t) (buffer->last - buffer->pos)) {
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p = buffer->pos;
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if (buffer->event && p == buffer->start) {
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ngx_add_timer(buffer->event, buffer->flush);
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}
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for (i = 0; i < log[l].format->ops->nelts; i++) {
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p = op[i].run(s, p, &op[i]);
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}
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ngx_linefeed(p);
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buffer->pos = p;
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continue;
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}
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if (buffer->event && buffer->event->timer_set) {
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ngx_del_timer(buffer->event);
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}
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}
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alloc_line:
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line = ngx_pnalloc(s->connection->pool, len);
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if (line == NULL) {
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return NGX_ERROR;
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}
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p = line;
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if (log[l].syslog_peer) {
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p = ngx_syslog_add_header(log[l].syslog_peer, line);
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}
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for (i = 0; i < log[l].format->ops->nelts; i++) {
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p = op[i].run(s, p, &op[i]);
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}
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if (log[l].syslog_peer) {
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size = p - line;
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n = ngx_syslog_send(log[l].syslog_peer, line, size);
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if (n < 0) {
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ngx_log_error(NGX_LOG_WARN, s->connection->log, 0,
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"send() to syslog failed");
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} else if ((size_t) n != size) {
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ngx_log_error(NGX_LOG_WARN, s->connection->log, 0,
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"send() to syslog has written only %z of %uz",
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n, size);
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}
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continue;
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}
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ngx_linefeed(p);
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ngx_stream_log_write(s, &log[l], line, p - line);
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}
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return NGX_OK;
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}
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static void
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ngx_stream_log_write(ngx_stream_session_t *s, ngx_stream_log_t *log,
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u_char *buf, size_t len)
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{
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u_char *name;
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time_t now;
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ssize_t n;
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ngx_err_t err;
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#if (NGX_ZLIB)
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ngx_stream_log_buf_t *buffer;
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#endif
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if (log->script == NULL) {
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name = log->file->name.data;
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#if (NGX_ZLIB)
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buffer = log->file->data;
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if (buffer && buffer->gzip) {
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n = ngx_stream_log_gzip(log->file->fd, buf, len, buffer->gzip,
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s->connection->log);
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} else {
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n = ngx_write_fd(log->file->fd, buf, len);
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}
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#else
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n = ngx_write_fd(log->file->fd, buf, len);
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#endif
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} else {
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name = NULL;
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n = ngx_stream_log_script_write(s, log->script, &name, buf, len);
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}
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if (n == (ssize_t) len) {
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return;
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}
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now = ngx_time();
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if (n == -1) {
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err = ngx_errno;
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if (err == NGX_ENOSPC) {
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log->disk_full_time = now;
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}
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if (now - log->error_log_time > 59) {
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ngx_log_error(NGX_LOG_ALERT, s->connection->log, err,
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ngx_write_fd_n " to \"%s\" failed", name);
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log->error_log_time = now;
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}
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return;
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}
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if (now - log->error_log_time > 59) {
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ngx_log_error(NGX_LOG_ALERT, s->connection->log, 0,
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ngx_write_fd_n " to \"%s\" was incomplete: %z of %uz",
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name, n, len);
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log->error_log_time = now;
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}
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}
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static ssize_t
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ngx_stream_log_script_write(ngx_stream_session_t *s,
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ngx_stream_log_script_t *script, u_char **name, u_char *buf, size_t len)
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{
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ssize_t n;
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ngx_str_t log;
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ngx_open_file_info_t of;
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ngx_stream_log_srv_conf_t *lscf;
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if (ngx_stream_script_run(s, &log, script->lengths->elts, 1,
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script->values->elts)
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== NULL)
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{
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/* simulate successful logging */
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return len;
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}
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log.data[log.len - 1] = '\0';
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*name = log.data;
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ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
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"stream log \"%s\"", log.data);
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lscf = ngx_stream_get_module_srv_conf(s, ngx_stream_log_module);
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ngx_memzero(&of, sizeof(ngx_open_file_info_t));
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of.log = 1;
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of.valid = lscf->open_file_cache_valid;
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of.min_uses = lscf->open_file_cache_min_uses;
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of.directio = NGX_OPEN_FILE_DIRECTIO_OFF;
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|
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if (ngx_open_cached_file(lscf->open_file_cache, &log, &of,
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s->connection->pool)
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!= NGX_OK)
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{
|
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if (of.err == 0) {
|
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/* simulate successful logging */
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return len;
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}
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ngx_log_error(NGX_LOG_CRIT, s->connection->log, ngx_errno,
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"%s \"%s\" failed", of.failed, log.data);
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/* simulate successful logging */
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return len;
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}
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ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
|
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"stream log #%d", of.fd);
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n = ngx_write_fd(of.fd, buf, len);
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return n;
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}
|
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|
|
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#if (NGX_ZLIB)
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|
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static ssize_t
|
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ngx_stream_log_gzip(ngx_fd_t fd, u_char *buf, size_t len, ngx_int_t level,
|
|
ngx_log_t *log)
|
|
{
|
|
int rc, wbits, memlevel;
|
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u_char *out;
|
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size_t size;
|
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ssize_t n;
|
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z_stream zstream;
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ngx_err_t err;
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ngx_pool_t *pool;
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|
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wbits = MAX_WBITS;
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memlevel = MAX_MEM_LEVEL - 1;
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|
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while ((ssize_t) len < ((1 << (wbits - 1)) - 262)) {
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wbits--;
|
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memlevel--;
|
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}
|
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|
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/*
|
|
* This is a formula from deflateBound() for conservative upper bound of
|
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* compressed data plus 18 bytes of gzip wrapper.
|
|
*/
|
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|
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size = len + ((len + 7) >> 3) + ((len + 63) >> 6) + 5 + 18;
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|
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ngx_memzero(&zstream, sizeof(z_stream));
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pool = ngx_create_pool(256, log);
|
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if (pool == NULL) {
|
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/* simulate successful logging */
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return len;
|
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}
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pool->log = log;
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|
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zstream.zalloc = ngx_stream_log_gzip_alloc;
|
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zstream.zfree = ngx_stream_log_gzip_free;
|
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zstream.opaque = pool;
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|
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out = ngx_pnalloc(pool, size);
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if (out == NULL) {
|
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goto done;
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}
|
|
|
|
zstream.next_in = buf;
|
|
zstream.avail_in = len;
|
|
zstream.next_out = out;
|
|
zstream.avail_out = size;
|
|
|
|
rc = deflateInit2(&zstream, (int) level, Z_DEFLATED, wbits + 16, memlevel,
|
|
Z_DEFAULT_STRATEGY);
|
|
|
|
if (rc != Z_OK) {
|
|
ngx_log_error(NGX_LOG_ALERT, log, 0, "deflateInit2() failed: %d", rc);
|
|
goto done;
|
|
}
|
|
|
|
ngx_log_debug4(NGX_LOG_DEBUG_STREAM, log, 0,
|
|
"deflate in: ni:%p no:%p ai:%ud ao:%ud",
|
|
zstream.next_in, zstream.next_out,
|
|
zstream.avail_in, zstream.avail_out);
|
|
|
|
rc = deflate(&zstream, Z_FINISH);
|
|
|
|
if (rc != Z_STREAM_END) {
|
|
ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
"deflate(Z_FINISH) failed: %d", rc);
|
|
goto done;
|
|
}
|
|
|
|
ngx_log_debug5(NGX_LOG_DEBUG_STREAM, log, 0,
|
|
"deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d",
|
|
zstream.next_in, zstream.next_out,
|
|
zstream.avail_in, zstream.avail_out,
|
|
rc);
|
|
|
|
size -= zstream.avail_out;
|
|
|
|
rc = deflateEnd(&zstream);
|
|
|
|
if (rc != Z_OK) {
|
|
ngx_log_error(NGX_LOG_ALERT, log, 0, "deflateEnd() failed: %d", rc);
|
|
goto done;
|
|
}
|
|
|
|
n = ngx_write_fd(fd, out, size);
|
|
|
|
if (n != (ssize_t) size) {
|
|
err = (n == -1) ? ngx_errno : 0;
|
|
|
|
ngx_destroy_pool(pool);
|
|
|
|
ngx_set_errno(err);
|
|
return -1;
|
|
}
|
|
|
|
done:
|
|
|
|
ngx_destroy_pool(pool);
|
|
|
|
/* simulate successful logging */
|
|
return len;
|
|
}
|
|
|
|
|
|
static void *
|
|
ngx_stream_log_gzip_alloc(void *opaque, u_int items, u_int size)
|
|
{
|
|
ngx_pool_t *pool = opaque;
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_STREAM, pool->log, 0,
|
|
"gzip alloc: n:%ud s:%ud", items, size);
|
|
|
|
return ngx_palloc(pool, items * size);
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_stream_log_gzip_free(void *opaque, void *address)
|
|
{
|
|
#if 0
|
|
ngx_pool_t *pool = opaque;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_STREAM, pool->log, 0,
|
|
"gzip free: %p", address);
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
static void
|
|
ngx_stream_log_flush(ngx_open_file_t *file, ngx_log_t *log)
|
|
{
|
|
size_t len;
|
|
ssize_t n;
|
|
ngx_stream_log_buf_t *buffer;
|
|
|
|
buffer = file->data;
|
|
|
|
len = buffer->pos - buffer->start;
|
|
|
|
if (len == 0) {
|
|
return;
|
|
}
|
|
|
|
#if (NGX_ZLIB)
|
|
if (buffer->gzip) {
|
|
n = ngx_stream_log_gzip(file->fd, buffer->start, len, buffer->gzip,
|
|
log);
|
|
} else {
|
|
n = ngx_write_fd(file->fd, buffer->start, len);
|
|
}
|
|
#else
|
|
n = ngx_write_fd(file->fd, buffer->start, len);
|
|
#endif
|
|
|
|
if (n == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
ngx_write_fd_n " to \"%s\" failed",
|
|
file->name.data);
|
|
|
|
} else if ((size_t) n != len) {
|
|
ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
ngx_write_fd_n " to \"%s\" was incomplete: %z of %uz",
|
|
file->name.data, n, len);
|
|
}
|
|
|
|
buffer->pos = buffer->start;
|
|
|
|
if (buffer->event && buffer->event->timer_set) {
|
|
ngx_del_timer(buffer->event);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_stream_log_flush_handler(ngx_event_t *ev)
|
|
{
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
"stream log buffer flush handler");
|
|
|
|
ngx_stream_log_flush(ev->data, ev->log);
|
|
}
|
|
|
|
|
|
static u_char *
|
|
ngx_stream_log_copy_short(ngx_stream_session_t *s, u_char *buf,
|
|
ngx_stream_log_op_t *op)
|
|
{
|
|
size_t len;
|
|
uintptr_t data;
|
|
|
|
len = op->len;
|
|
data = op->data;
|
|
|
|
while (len--) {
|
|
*buf++ = (u_char) (data & 0xff);
|
|
data >>= 8;
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
|
|
static u_char *
|
|
ngx_stream_log_copy_long(ngx_stream_session_t *s, u_char *buf,
|
|
ngx_stream_log_op_t *op)
|
|
{
|
|
return ngx_cpymem(buf, (u_char *) op->data, op->len);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_stream_log_variable_compile(ngx_conf_t *cf, ngx_stream_log_op_t *op,
|
|
ngx_str_t *value, ngx_uint_t json)
|
|
{
|
|
ngx_int_t index;
|
|
|
|
index = ngx_stream_get_variable_index(cf, value);
|
|
if (index == NGX_ERROR) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
op->len = 0;
|
|
|
|
if (json) {
|
|
op->getlen = ngx_stream_log_json_variable_getlen;
|
|
op->run = ngx_stream_log_json_variable;
|
|
|
|
} else {
|
|
op->getlen = ngx_stream_log_variable_getlen;
|
|
op->run = ngx_stream_log_variable;
|
|
}
|
|
|
|
op->data = index;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static size_t
|
|
ngx_stream_log_variable_getlen(ngx_stream_session_t *s, uintptr_t data)
|
|
{
|
|
uintptr_t len;
|
|
ngx_stream_variable_value_t *value;
|
|
|
|
value = ngx_stream_get_indexed_variable(s, data);
|
|
|
|
if (value == NULL || value->not_found) {
|
|
return 1;
|
|
}
|
|
|
|
len = ngx_stream_log_escape(NULL, value->data, value->len);
|
|
|
|
value->escape = len ? 1 : 0;
|
|
|
|
return value->len + len * 3;
|
|
}
|
|
|
|
|
|
static u_char *
|
|
ngx_stream_log_variable(ngx_stream_session_t *s, u_char *buf,
|
|
ngx_stream_log_op_t *op)
|
|
{
|
|
ngx_stream_variable_value_t *value;
|
|
|
|
value = ngx_stream_get_indexed_variable(s, op->data);
|
|
|
|
if (value == NULL || value->not_found) {
|
|
*buf = '-';
|
|
return buf + 1;
|
|
}
|
|
|
|
if (value->escape == 0) {
|
|
return ngx_cpymem(buf, value->data, value->len);
|
|
|
|
} else {
|
|
return (u_char *) ngx_stream_log_escape(buf, value->data, value->len);
|
|
}
|
|
}
|
|
|
|
|
|
static uintptr_t
|
|
ngx_stream_log_escape(u_char *dst, u_char *src, size_t size)
|
|
{
|
|
ngx_uint_t n;
|
|
static u_char hex[] = "0123456789ABCDEF";
|
|
|
|
static uint32_t escape[] = {
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
|
/* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
0x00000004, /* 0000 0000 0000 0000 0000 0000 0000 0100 */
|
|
|
|
/* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
0x10000000, /* 0001 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
|
/* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
};
|
|
|
|
|
|
if (dst == NULL) {
|
|
|
|
/* find the number of the characters to be escaped */
|
|
|
|
n = 0;
|
|
|
|
while (size) {
|
|
if (escape[*src >> 5] & (1U << (*src & 0x1f))) {
|
|
n++;
|
|
}
|
|
src++;
|
|
size--;
|
|
}
|
|
|
|
return (uintptr_t) n;
|
|
}
|
|
|
|
while (size) {
|
|
if (escape[*src >> 5] & (1U << (*src & 0x1f))) {
|
|
*dst++ = '\\';
|
|
*dst++ = 'x';
|
|
*dst++ = hex[*src >> 4];
|
|
*dst++ = hex[*src & 0xf];
|
|
src++;
|
|
|
|
} else {
|
|
*dst++ = *src++;
|
|
}
|
|
size--;
|
|
}
|
|
|
|
return (uintptr_t) dst;
|
|
}
|
|
|
|
|
|
static size_t
|
|
ngx_stream_log_json_variable_getlen(ngx_stream_session_t *s, uintptr_t data)
|
|
{
|
|
uintptr_t len;
|
|
ngx_stream_variable_value_t *value;
|
|
|
|
value = ngx_stream_get_indexed_variable(s, data);
|
|
|
|
if (value == NULL || value->not_found) {
|
|
return 0;
|
|
}
|
|
|
|
len = ngx_escape_json(NULL, value->data, value->len);
|
|
|
|
value->escape = len ? 1 : 0;
|
|
|
|
return value->len + len;
|
|
}
|
|
|
|
|
|
static u_char *
|
|
ngx_stream_log_json_variable(ngx_stream_session_t *s, u_char *buf,
|
|
ngx_stream_log_op_t *op)
|
|
{
|
|
ngx_stream_variable_value_t *value;
|
|
|
|
value = ngx_stream_get_indexed_variable(s, op->data);
|
|
|
|
if (value == NULL || value->not_found) {
|
|
return buf;
|
|
}
|
|
|
|
if (value->escape == 0) {
|
|
return ngx_cpymem(buf, value->data, value->len);
|
|
|
|
} else {
|
|
return (u_char *) ngx_escape_json(buf, value->data, value->len);
|
|
}
|
|
}
|
|
|
|
|
|
static void *
|
|
ngx_stream_log_create_main_conf(ngx_conf_t *cf)
|
|
{
|
|
ngx_stream_log_main_conf_t *conf;
|
|
|
|
conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_log_main_conf_t));
|
|
if (conf == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (ngx_array_init(&conf->formats, cf->pool, 4,
|
|
sizeof(ngx_stream_log_fmt_t))
|
|
!= NGX_OK)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
return conf;
|
|
}
|
|
|
|
|
|
static void *
|
|
ngx_stream_log_create_srv_conf(ngx_conf_t *cf)
|
|
{
|
|
ngx_stream_log_srv_conf_t *conf;
|
|
|
|
conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_log_srv_conf_t));
|
|
if (conf == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
conf->open_file_cache = NGX_CONF_UNSET_PTR;
|
|
|
|
return conf;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_stream_log_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
{
|
|
ngx_stream_log_srv_conf_t *prev = parent;
|
|
ngx_stream_log_srv_conf_t *conf = child;
|
|
|
|
if (conf->open_file_cache == NGX_CONF_UNSET_PTR) {
|
|
|
|
conf->open_file_cache = prev->open_file_cache;
|
|
conf->open_file_cache_valid = prev->open_file_cache_valid;
|
|
conf->open_file_cache_min_uses = prev->open_file_cache_min_uses;
|
|
|
|
if (conf->open_file_cache == NGX_CONF_UNSET_PTR) {
|
|
conf->open_file_cache = NULL;
|
|
}
|
|
}
|
|
|
|
if (conf->logs || conf->off) {
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
conf->logs = prev->logs;
|
|
conf->off = prev->off;
|
|
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_stream_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
{
|
|
ngx_stream_log_srv_conf_t *lscf = conf;
|
|
|
|
ssize_t size;
|
|
ngx_int_t gzip;
|
|
ngx_uint_t i, n;
|
|
ngx_msec_t flush;
|
|
ngx_str_t *value, name, s;
|
|
ngx_stream_log_t *log;
|
|
ngx_syslog_peer_t *peer;
|
|
ngx_stream_log_buf_t *buffer;
|
|
ngx_stream_log_fmt_t *fmt;
|
|
ngx_stream_script_compile_t sc;
|
|
ngx_stream_log_main_conf_t *lmcf;
|
|
ngx_stream_compile_complex_value_t ccv;
|
|
|
|
value = cf->args->elts;
|
|
|
|
if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
lscf->off = 1;
|
|
if (cf->args->nelts == 2) {
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"invalid parameter \"%V\"", &value[2]);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (lscf->logs == NULL) {
|
|
lscf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_stream_log_t));
|
|
if (lscf->logs == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
}
|
|
|
|
lmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_log_module);
|
|
|
|
log = ngx_array_push(lscf->logs);
|
|
if (log == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
ngx_memzero(log, sizeof(ngx_stream_log_t));
|
|
|
|
|
|
if (ngx_strncmp(value[1].data, "syslog:", 7) == 0) {
|
|
|
|
peer = ngx_pcalloc(cf->pool, sizeof(ngx_syslog_peer_t));
|
|
if (peer == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (ngx_syslog_process_conf(cf, peer) != NGX_CONF_OK) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
log->syslog_peer = peer;
|
|
|
|
goto process_formats;
|
|
}
|
|
|
|
n = ngx_stream_script_variables_count(&value[1]);
|
|
|
|
if (n == 0) {
|
|
log->file = ngx_conf_open_file(cf->cycle, &value[1]);
|
|
if (log->file == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
} else {
|
|
if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
log->script = ngx_pcalloc(cf->pool, sizeof(ngx_stream_log_script_t));
|
|
if (log->script == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
ngx_memzero(&sc, sizeof(ngx_stream_script_compile_t));
|
|
|
|
sc.cf = cf;
|
|
sc.source = &value[1];
|
|
sc.lengths = &log->script->lengths;
|
|
sc.values = &log->script->values;
|
|
sc.variables = n;
|
|
sc.complete_lengths = 1;
|
|
sc.complete_values = 1;
|
|
|
|
if (ngx_stream_script_compile(&sc) != NGX_OK) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
}
|
|
|
|
process_formats:
|
|
|
|
if (cf->args->nelts >= 3) {
|
|
name = value[2];
|
|
|
|
} else {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"log format is not specified");
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
fmt = lmcf->formats.elts;
|
|
for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
if (fmt[i].name.len == name.len
|
|
&& ngx_strcasecmp(fmt[i].name.data, name.data) == 0)
|
|
{
|
|
log->format = &fmt[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (log->format == NULL) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"unknown log format \"%V\"", &name);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
size = 0;
|
|
flush = 0;
|
|
gzip = 0;
|
|
|
|
for (i = 3; i < cf->args->nelts; i++) {
|
|
|
|
if (ngx_strncmp(value[i].data, "buffer=", 7) == 0) {
|
|
s.len = value[i].len - 7;
|
|
s.data = value[i].data + 7;
|
|
|
|
size = ngx_parse_size(&s);
|
|
|
|
if (size == NGX_ERROR || size == 0) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"invalid buffer size \"%V\"", &s);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ngx_strncmp(value[i].data, "flush=", 6) == 0) {
|
|
s.len = value[i].len - 6;
|
|
s.data = value[i].data + 6;
|
|
|
|
flush = ngx_parse_time(&s, 0);
|
|
|
|
if (flush == (ngx_msec_t) NGX_ERROR || flush == 0) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"invalid flush time \"%V\"", &s);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ngx_strncmp(value[i].data, "gzip", 4) == 0
|
|
&& (value[i].len == 4 || value[i].data[4] == '='))
|
|
{
|
|
#if (NGX_ZLIB)
|
|
if (size == 0) {
|
|
size = 64 * 1024;
|
|
}
|
|
|
|
if (value[i].len == 4) {
|
|
gzip = Z_BEST_SPEED;
|
|
continue;
|
|
}
|
|
|
|
s.len = value[i].len - 5;
|
|
s.data = value[i].data + 5;
|
|
|
|
gzip = ngx_atoi(s.data, s.len);
|
|
|
|
if (gzip < 1 || gzip > 9) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"invalid compression level \"%V\"", &s);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
continue;
|
|
|
|
#else
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"nginx was built without zlib support");
|
|
return NGX_CONF_ERROR;
|
|
#endif
|
|
}
|
|
|
|
if (ngx_strncmp(value[i].data, "if=", 3) == 0) {
|
|
s.len = value[i].len - 3;
|
|
s.data = value[i].data + 3;
|
|
|
|
ngx_memzero(&ccv, sizeof(ngx_stream_compile_complex_value_t));
|
|
|
|
ccv.cf = cf;
|
|
ccv.value = &s;
|
|
ccv.complex_value = ngx_palloc(cf->pool,
|
|
sizeof(ngx_stream_complex_value_t));
|
|
if (ccv.complex_value == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (ngx_stream_compile_complex_value(&ccv) != NGX_OK) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
log->filter = ccv.complex_value;
|
|
|
|
continue;
|
|
}
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"invalid parameter \"%V\"", &value[i]);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (flush && size == 0) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"no buffer is defined for access_log \"%V\"",
|
|
&value[1]);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (size) {
|
|
|
|
if (log->script) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"buffered logs cannot have variables in name");
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (log->syslog_peer) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"logs to syslog cannot be buffered");
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (log->file->data) {
|
|
buffer = log->file->data;
|
|
|
|
if (buffer->last - buffer->start != size
|
|
|| buffer->flush != flush
|
|
|| buffer->gzip != gzip)
|
|
{
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"access_log \"%V\" already defined "
|
|
"with conflicting parameters",
|
|
&value[1]);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
buffer = ngx_pcalloc(cf->pool, sizeof(ngx_stream_log_buf_t));
|
|
if (buffer == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
buffer->start = ngx_pnalloc(cf->pool, size);
|
|
if (buffer->start == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
buffer->pos = buffer->start;
|
|
buffer->last = buffer->start + size;
|
|
|
|
if (flush) {
|
|
buffer->event = ngx_pcalloc(cf->pool, sizeof(ngx_event_t));
|
|
if (buffer->event == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
buffer->event->data = log->file;
|
|
buffer->event->handler = ngx_stream_log_flush_handler;
|
|
buffer->event->log = &cf->cycle->new_log;
|
|
buffer->event->cancelable = 1;
|
|
|
|
buffer->flush = flush;
|
|
}
|
|
|
|
buffer->gzip = gzip;
|
|
|
|
log->file->flush = ngx_stream_log_flush;
|
|
log->file->data = buffer;
|
|
}
|
|
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_stream_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
{
|
|
ngx_stream_log_main_conf_t *lmcf = conf;
|
|
|
|
ngx_str_t *value;
|
|
ngx_uint_t i;
|
|
ngx_stream_log_fmt_t *fmt;
|
|
|
|
value = cf->args->elts;
|
|
|
|
fmt = lmcf->formats.elts;
|
|
for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
if (fmt[i].name.len == value[1].len
|
|
&& ngx_strcmp(fmt[i].name.data, value[1].data) == 0)
|
|
{
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"duplicate \"log_format\" name \"%V\"",
|
|
&value[1]);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
}
|
|
|
|
fmt = ngx_array_push(&lmcf->formats);
|
|
if (fmt == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
fmt->name = value[1];
|
|
|
|
fmt->flushes = ngx_array_create(cf->pool, 4, sizeof(ngx_int_t));
|
|
if (fmt->flushes == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_stream_log_op_t));
|
|
if (fmt->ops == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
return ngx_stream_log_compile_format(cf, fmt->flushes, fmt->ops,
|
|
cf->args, 2);
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_stream_log_compile_format(ngx_conf_t *cf, ngx_array_t *flushes,
|
|
ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s)
|
|
{
|
|
u_char *data, *p, ch;
|
|
size_t i, len;
|
|
ngx_str_t *value, var;
|
|
ngx_int_t *flush;
|
|
ngx_uint_t bracket, json;
|
|
ngx_stream_log_op_t *op;
|
|
|
|
json = 0;
|
|
value = args->elts;
|
|
|
|
if (s < args->nelts && ngx_strncmp(value[s].data, "escape=", 7) == 0) {
|
|
data = value[s].data + 7;
|
|
|
|
if (ngx_strcmp(data, "json") == 0) {
|
|
json = 1;
|
|
|
|
} else if (ngx_strcmp(data, "default") != 0) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"unknown log format escaping \"%s\"", data);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
s++;
|
|
}
|
|
|
|
for ( /* void */ ; s < args->nelts; s++) {
|
|
|
|
i = 0;
|
|
|
|
while (i < value[s].len) {
|
|
|
|
op = ngx_array_push(ops);
|
|
if (op == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
data = &value[s].data[i];
|
|
|
|
if (value[s].data[i] == '$') {
|
|
|
|
if (++i == value[s].len) {
|
|
goto invalid;
|
|
}
|
|
|
|
if (value[s].data[i] == '{') {
|
|
bracket = 1;
|
|
|
|
if (++i == value[s].len) {
|
|
goto invalid;
|
|
}
|
|
|
|
var.data = &value[s].data[i];
|
|
|
|
} else {
|
|
bracket = 0;
|
|
var.data = &value[s].data[i];
|
|
}
|
|
|
|
for (var.len = 0; i < value[s].len; i++, var.len++) {
|
|
ch = value[s].data[i];
|
|
|
|
if (ch == '}' && bracket) {
|
|
i++;
|
|
bracket = 0;
|
|
break;
|
|
}
|
|
|
|
if ((ch >= 'A' && ch <= 'Z')
|
|
|| (ch >= 'a' && ch <= 'z')
|
|
|| (ch >= '0' && ch <= '9')
|
|
|| ch == '_')
|
|
{
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (bracket) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"the closing bracket in \"%V\" "
|
|
"variable is missing", &var);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (var.len == 0) {
|
|
goto invalid;
|
|
}
|
|
|
|
if (ngx_stream_log_variable_compile(cf, op, &var, json)
|
|
!= NGX_OK)
|
|
{
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (flushes) {
|
|
|
|
flush = ngx_array_push(flushes);
|
|
if (flush == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
*flush = op->data; /* variable index */
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
i++;
|
|
|
|
while (i < value[s].len && value[s].data[i] != '$') {
|
|
i++;
|
|
}
|
|
|
|
len = &value[s].data[i] - data;
|
|
|
|
if (len) {
|
|
|
|
op->len = len;
|
|
op->getlen = NULL;
|
|
|
|
if (len <= sizeof(uintptr_t)) {
|
|
op->run = ngx_stream_log_copy_short;
|
|
op->data = 0;
|
|
|
|
while (len--) {
|
|
op->data <<= 8;
|
|
op->data |= data[len];
|
|
}
|
|
|
|
} else {
|
|
op->run = ngx_stream_log_copy_long;
|
|
|
|
p = ngx_pnalloc(cf->pool, len);
|
|
if (p == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
ngx_memcpy(p, data, len);
|
|
op->data = (uintptr_t) p;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
invalid:
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%s\"", data);
|
|
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_stream_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
{
|
|
ngx_stream_log_srv_conf_t *lscf = conf;
|
|
|
|
time_t inactive, valid;
|
|
ngx_str_t *value, s;
|
|
ngx_int_t max, min_uses;
|
|
ngx_uint_t i;
|
|
|
|
if (lscf->open_file_cache != NGX_CONF_UNSET_PTR) {
|
|
return "is duplicate";
|
|
}
|
|
|
|
value = cf->args->elts;
|
|
|
|
max = 0;
|
|
inactive = 10;
|
|
valid = 60;
|
|
min_uses = 1;
|
|
|
|
for (i = 1; i < cf->args->nelts; i++) {
|
|
|
|
if (ngx_strncmp(value[i].data, "max=", 4) == 0) {
|
|
|
|
max = ngx_atoi(value[i].data + 4, value[i].len - 4);
|
|
if (max == NGX_ERROR) {
|
|
goto failed;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) {
|
|
|
|
s.len = value[i].len - 9;
|
|
s.data = value[i].data + 9;
|
|
|
|
inactive = ngx_parse_time(&s, 1);
|
|
if (inactive == (time_t) NGX_ERROR) {
|
|
goto failed;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ngx_strncmp(value[i].data, "min_uses=", 9) == 0) {
|
|
|
|
min_uses = ngx_atoi(value[i].data + 9, value[i].len - 9);
|
|
if (min_uses == NGX_ERROR) {
|
|
goto failed;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ngx_strncmp(value[i].data, "valid=", 6) == 0) {
|
|
|
|
s.len = value[i].len - 6;
|
|
s.data = value[i].data + 6;
|
|
|
|
valid = ngx_parse_time(&s, 1);
|
|
if (valid == (time_t) NGX_ERROR) {
|
|
goto failed;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (ngx_strcmp(value[i].data, "off") == 0) {
|
|
|
|
lscf->open_file_cache = NULL;
|
|
|
|
continue;
|
|
}
|
|
|
|
failed:
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"invalid \"open_log_file_cache\" parameter \"%V\"",
|
|
&value[i]);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (lscf->open_file_cache == NULL) {
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
if (max == 0) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"\"open_log_file_cache\" must have \"max\" parameter");
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
lscf->open_file_cache = ngx_open_file_cache_init(cf->pool, max, inactive);
|
|
|
|
if (lscf->open_file_cache) {
|
|
|
|
lscf->open_file_cache_valid = valid;
|
|
lscf->open_file_cache_min_uses = min_uses;
|
|
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_stream_log_init(ngx_conf_t *cf)
|
|
{
|
|
ngx_stream_handler_pt *h;
|
|
ngx_stream_core_main_conf_t *cmcf;
|
|
|
|
cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module);
|
|
|
|
h = ngx_array_push(&cmcf->phases[NGX_STREAM_LOG_PHASE].handlers);
|
|
if (h == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
*h = ngx_stream_log_handler;
|
|
|
|
return NGX_OK;
|
|
}
|