nginx/src/http/modules/ngx_http_userid_filter_module.c

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>


#define NGX_HTTP_USERID_OFF …
#define NGX_HTTP_USERID_LOG …
#define NGX_HTTP_USERID_V1 …
#define NGX_HTTP_USERID_ON …

#define NGX_HTTP_USERID_COOKIE_OFF …
#define NGX_HTTP_USERID_COOKIE_SECURE …
#define NGX_HTTP_USERID_COOKIE_HTTPONLY …
#define NGX_HTTP_USERID_COOKIE_SAMESITE …
#define NGX_HTTP_USERID_COOKIE_SAMESITE_STRICT …
#define NGX_HTTP_USERID_COOKIE_SAMESITE_LAX …
#define NGX_HTTP_USERID_COOKIE_SAMESITE_NONE …

/* 31 Dec 2037 23:55:55 GMT */
#define NGX_HTTP_USERID_MAX_EXPIRES …


ngx_http_userid_conf_t;


ngx_http_userid_ctx_t;


static ngx_http_userid_ctx_t *ngx_http_userid_get_uid(ngx_http_request_t *r,
    ngx_http_userid_conf_t *conf);
static ngx_int_t ngx_http_userid_variable(ngx_http_request_t *r,
    ngx_http_variable_value_t *v, ngx_str_t *name, uint32_t *uid);
static ngx_int_t ngx_http_userid_set_uid(ngx_http_request_t *r,
    ngx_http_userid_ctx_t *ctx, ngx_http_userid_conf_t *conf);
static ngx_int_t ngx_http_userid_create_uid(ngx_http_request_t *r,
    ngx_http_userid_ctx_t *ctx, ngx_http_userid_conf_t *conf);

static ngx_int_t ngx_http_userid_add_variables(ngx_conf_t *cf);
static ngx_int_t ngx_http_userid_init(ngx_conf_t *cf);
static void *ngx_http_userid_create_conf(ngx_conf_t *cf);
static char *ngx_http_userid_merge_conf(ngx_conf_t *cf, void *parent,
    void *child);
static char *ngx_http_userid_domain(ngx_conf_t *cf, void *post, void *data);
static char *ngx_http_userid_path(ngx_conf_t *cf, void *post, void *data);
static char *ngx_http_userid_expires(ngx_conf_t *cf, ngx_command_t *cmd,
    void *conf);
static char *ngx_http_userid_p3p(ngx_conf_t *cf, void *post, void *data);
static char *ngx_http_userid_mark(ngx_conf_t *cf, ngx_command_t *cmd,
    void *conf);
static ngx_int_t ngx_http_userid_init_worker(ngx_cycle_t *cycle);



static uint32_t  start_value;
static uint32_t  sequencer_v1 = …;
static uint32_t  sequencer_v2 = …;


static u_char expires[] = …;


static ngx_http_output_header_filter_pt  ngx_http_next_header_filter;


static ngx_conf_enum_t  ngx_http_userid_state[] = …;


static ngx_conf_bitmask_t  ngx_http_userid_flags[] = …;


static ngx_conf_post_handler_pt  ngx_http_userid_domain_p = …;
static ngx_conf_post_handler_pt  ngx_http_userid_path_p = …;
static ngx_conf_post_handler_pt  ngx_http_userid_p3p_p = …;


static ngx_command_t  ngx_http_userid_commands[] = …;


static ngx_http_module_t  ngx_http_userid_filter_module_ctx = …;


ngx_module_t  ngx_http_userid_filter_module = …;


static ngx_str_t   ngx_http_userid_got = …;
static ngx_str_t   ngx_http_userid_set = …;
static ngx_str_t   ngx_http_userid_reset = …;
static ngx_uint_t  ngx_http_userid_reset_index;


static ngx_int_t
ngx_http_userid_filter(ngx_http_request_t *r)
{ … }


static ngx_int_t
ngx_http_userid_got_variable(ngx_http_request_t *r,
    ngx_http_variable_value_t *v, uintptr_t data)
{ … }


static ngx_int_t
ngx_http_userid_set_variable(ngx_http_request_t *r,
    ngx_http_variable_value_t *v, uintptr_t data)
{ … }


static ngx_http_userid_ctx_t *
ngx_http_userid_get_uid(ngx_http_request_t *r, ngx_http_userid_conf_t *conf)
{ … }


static ngx_int_t
ngx_http_userid_set_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
    ngx_http_userid_conf_t *conf)
{ … }


static ngx_int_t
ngx_http_userid_create_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
    ngx_http_userid_conf_t *conf)
{ … }


static ngx_int_t
ngx_http_userid_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
    ngx_str_t *name, uint32_t *uid)
{ … }


static ngx_int_t
ngx_http_userid_reset_variable(ngx_http_request_t *r,
    ngx_http_variable_value_t *v, uintptr_t data)
{ … }


static ngx_int_t
ngx_http_userid_add_variables(ngx_conf_t *cf)
{ … }


static void *
ngx_http_userid_create_conf(ngx_conf_t *cf)
{ … }


static char *
ngx_http_userid_merge_conf(ngx_conf_t *cf, void *parent, void *child)
{ … }


static ngx_int_t
ngx_http_userid_init(ngx_conf_t *cf)
{ … }


static char *
ngx_http_userid_domain(ngx_conf_t *cf, void *post, void *data)
{ … }


static char *
ngx_http_userid_path(ngx_conf_t *cf, void *post, void *data)
{ … }


static char *
ngx_http_userid_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{ … }


static char *
ngx_http_userid_p3p(ngx_conf_t *cf, void *post, void *data)
{ … }


static char *
ngx_http_userid_mark(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{ … }


static ngx_int_t
ngx_http_userid_init_worker(ngx_cycle_t *cycle)
{ … }