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Access log: the "if" parameter of the "access_log" directive.

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The parameter value specifies a condition under which the request is logged.
This commit is contained in:
Sergey Kandaurov 2014-04-15 21:32:56 +04:00
parent c69cabed1d
commit 7cf53e11f5
1 changed files with 47 additions and 10 deletions
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57
src/http/modules/ngx_http_log_module.c
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@ -67,6 +67,7 @@ typedef struct {
time_t disk_full_time;
time_t error_log_time;
ngx_http_log_fmt_t *format;
ngx_http_complex_value_t *filter;
} ngx_http_log_t;
@ -240,6 +241,7 @@ ngx_http_log_handler(ngx_http_request_t *r)
{
u_char *line, *p;
size_t len;
ngx_str_t val;
ngx_uint_t i, l;
ngx_http_log_t *log;
ngx_http_log_op_t *op;
@ -258,6 +260,16 @@ ngx_http_log_handler(ngx_http_request_t *r)
log = lcf->logs->elts;
for (l = 0; l < lcf->logs->nelts; l++) {
if (log[l].filter) {
if (ngx_http_complex_value(r, log[l].filter, &val) != NGX_OK) {
return NGX_ERROR;
}
if (val.len == 0 || (val.len == 1 && val.data[0] == '0')) {
continue;
}
}
if (ngx_time() == log[l].disk_full_time) {
/*
@ -1085,16 +1097,17 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_log_loc_conf_t *llcf = conf;
ssize_t size;
ngx_int_t gzip;
ngx_uint_t i, n;
ngx_msec_t flush;
ngx_str_t *value, name, s;
ngx_http_log_t *log;
ngx_http_log_buf_t *buffer;
ngx_http_log_fmt_t *fmt;
ngx_http_log_main_conf_t *lmcf;
ngx_http_script_compile_t sc;
ssize_t size;
ngx_int_t gzip;
ngx_uint_t i, n;
ngx_msec_t flush;
ngx_str_t *value, name, s, filter;
ngx_http_log_t *log;
ngx_http_log_buf_t *buffer;
ngx_http_log_fmt_t *fmt;
ngx_http_log_main_conf_t *lmcf;
ngx_http_script_compile_t sc;
ngx_http_compile_complex_value_t ccv;
value = cf->args->elts;
@ -1189,6 +1202,7 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
size = 0;
flush = 0;
gzip = 0;
filter.len = 0;
for (i = 3; i < cf->args->nelts; i++) {
@ -1255,6 +1269,12 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
#endif
}
if (ngx_strncmp(value[i].data, "if=", 3) == 0) {
filter.len = value[i].len - 3;
filter.data = value[i].data + 3;
continue;
}
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid parameter \"%V\"", &value[i]);
return NGX_CONF_ERROR;
@ -1324,6 +1344,23 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
log->file->data = buffer;
}
if (filter.len) {
log->filter = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t));
if (log->filter == NULL) {
return NGX_CONF_ERROR;
}
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &filter;
ccv.complex_value = log->filter;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
}
return NGX_CONF_OK;
}