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$uid_got and $uid_set may used at any time

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This commit is contained in:
Igor Sysoev 2008-05-16 15:03:37 +00:00
parent 3be5257a4f
commit 69988d1162
1 changed files with 115 additions and 73 deletions
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188
src/http/modules/ngx_http_userid_filter_module.c
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@ -41,15 +41,14 @@ typedef struct {
} ngx_http_userid_ctx_t;
static void ngx_http_userid_get_uid(ngx_http_request_t *r,
ngx_http_userid_ctx_t *ctx, ngx_http_userid_conf_t *conf);
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_add_variables(ngx_conf_t *cf);
static ngx_int_t ngx_http_userid_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
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,
@ -191,7 +190,6 @@ static ngx_str_t ngx_http_userid_set = ngx_string("uid_set");
static ngx_int_t
ngx_http_userid_filter(ngx_http_request_t *r)
{
ngx_int_t rc;
ngx_http_userid_ctx_t *ctx;
ngx_http_userid_conf_t *conf;
@ -201,25 +199,18 @@ ngx_http_userid_filter(ngx_http_request_t *r)
conf = ngx_http_get_module_loc_conf(r, ngx_http_userid_filter_module);
if (conf->enable == NGX_HTTP_USERID_OFF) {
if (conf->enable <= NGX_HTTP_USERID_LOG) {
return ngx_http_next_header_filter(r);
}
ctx = ngx_http_userid_get_uid(r, conf);
ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_userid_ctx_t));
if (ctx == NULL) {
return NGX_ERROR;
}
ngx_http_set_ctx(r, ctx, ngx_http_userid_filter_module);
ngx_http_userid_get_uid(r, ctx, conf);
if (conf->enable == NGX_HTTP_USERID_LOG) {
return ngx_http_next_header_filter(r);
}
if (ctx->uid_got[3] != 0) {
if (conf->mark == '\0') {
return ngx_http_next_header_filter(r);
@ -233,28 +224,95 @@ ngx_http_userid_filter(ngx_http_request_t *r)
}
}
rc = ngx_http_userid_set_uid(r, ctx, conf);
/* ctx->status == NGX_DECLINED */
if (rc != NGX_OK) {
return rc;
if (ngx_http_userid_set_uid(r, ctx, conf) == NGX_OK) {
return ngx_http_next_header_filter(r);
}
return ngx_http_next_header_filter(r);
return NGX_ERROR;
}
static void
ngx_http_userid_get_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_got_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data)
{
ngx_int_t n;
ngx_str_t src, dst;
ngx_table_elt_t **cookies;
ngx_http_userid_ctx_t *ctx;
ngx_http_userid_conf_t *conf;
conf = ngx_http_get_module_loc_conf(r->main, ngx_http_userid_filter_module);
if (conf->enable == NGX_HTTP_USERID_OFF) {
v->not_found = 1;
return NGX_OK;
}
ctx = ngx_http_userid_get_uid(r, conf);
if (ctx == NULL) {
return NGX_ERROR;
}
if (ctx->uid_got[3] != 0) {
return ngx_http_userid_variable(r, v, &conf->name, ctx->uid_got);
}
/* ctx->status == NGX_DECLINED */
v->not_found = 1;
return NGX_OK;
}
static ngx_int_t
ngx_http_userid_set_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data)
{
ngx_http_userid_ctx_t *ctx;
ngx_http_userid_conf_t *conf;
ctx = ngx_http_get_module_ctx(r, ngx_http_userid_filter_module);
if (ctx == NULL || ctx->uid_set[3] == 0) {
v->not_found = 1;
return NGX_OK;
}
conf = ngx_http_get_module_loc_conf(r, ngx_http_userid_filter_module);
return ngx_http_userid_variable(r, v, &conf->name, ctx->uid_set);
}
static ngx_http_userid_ctx_t *
ngx_http_userid_get_uid(ngx_http_request_t *r, ngx_http_userid_conf_t *conf)
{
ngx_int_t n;
ngx_str_t src, dst;
ngx_table_elt_t **cookies;
ngx_http_userid_ctx_t *ctx;
ctx = ngx_http_get_module_ctx(r, ngx_http_userid_filter_module);
if (ctx) {
return ctx;
}
if (ctx == NULL) {
ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_userid_ctx_t));
if (ctx == NULL) {
return NULL;
}
ngx_http_set_ctx(r, ctx, ngx_http_userid_filter_module);
}
n = ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &conf->name,
&ctx->cookie);
if (n == NGX_DECLINED) {
return;
return ctx;
}
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
@ -265,7 +323,7 @@ ngx_http_userid_get_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"client sent too short userid cookie \"%V\"",
&cookies[n]->value);
return;
return ctx;
}
src = ctx->cookie;
@ -286,13 +344,15 @@ ngx_http_userid_get_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"client sent invalid userid cookie \"%V\"",
&cookies[n]->value);
return;
return ctx;
}
ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"uid: %08XD%08XD%08XD%08XD",
ctx->uid_got[0], ctx->uid_got[1],
ctx->uid_got[2], ctx->uid_got[3]);
return ctx;
}
@ -304,7 +364,6 @@ ngx_http_userid_set_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
size_t len;
ngx_str_t src, dst;
ngx_table_elt_t *set_cookie, *p3p;
/*
* TODO: in the threaded mode the sequencers should be in TLS and their
* ranges should be divided between threads
@ -432,51 +491,11 @@ ngx_http_userid_set_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
}
static ngx_int_t
ngx_http_userid_add_variables(ngx_conf_t *cf)
{
ngx_http_variable_t *var;
var = ngx_http_add_variable(cf, &ngx_http_userid_got, NGX_HTTP_VAR_NOHASH);
if (var == NULL) {
return NGX_ERROR;
}
var->get_handler = ngx_http_userid_variable;
var->data = offsetof(ngx_http_userid_ctx_t, uid_got);
var = ngx_http_add_variable(cf, &ngx_http_userid_set, NGX_HTTP_VAR_NOHASH);
if (var == NULL) {
return NGX_ERROR;
}
var->get_handler = ngx_http_userid_variable;
var->data = offsetof(ngx_http_userid_ctx_t, uid_set);
return NGX_OK;
}
static ngx_int_t
ngx_http_userid_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
uintptr_t data)
ngx_str_t *name, uint32_t *uid)
{
uint32_t *uid;
ngx_http_userid_ctx_t *ctx;
ngx_http_userid_conf_t *conf;
ctx = ngx_http_get_module_ctx(r, ngx_http_userid_filter_module);
uid = (uint32_t *) ((char *) ctx + data);
if (ctx == NULL || uid[3] == 0) {
v->not_found = 1;
return NGX_OK;
}
conf = ngx_http_get_module_loc_conf(r, ngx_http_userid_filter_module);
v->len = conf->name.len + sizeof("=00001111222233334444555566667777") - 1;
v->len = name->len + sizeof("=00001111222233334444555566667777") - 1;
v->data = ngx_palloc(r->pool, v->len);
if (v->data == NULL) {
return NGX_ERROR;
@ -487,7 +506,30 @@ ngx_http_userid_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
v->not_found = 0;
ngx_sprintf(v->data, "%V=%08XD%08XD%08XD%08XD",
&conf->name, uid[0], uid[1], uid[2], uid[3]);
name, uid[0], uid[1], uid[2], uid[3]);
return NGX_OK;
}
static ngx_int_t
ngx_http_userid_add_variables(ngx_conf_t *cf)
{
ngx_http_variable_t *var;
var = ngx_http_add_variable(cf, &ngx_http_userid_got, NGX_HTTP_VAR_NOHASH);
if (var == NULL) {
return NGX_ERROR;
}
var->get_handler = ngx_http_userid_got_variable;
var = ngx_http_add_variable(cf, &ngx_http_userid_set, NGX_HTTP_VAR_NOHASH);
if (var == NULL) {
return NGX_ERROR;
}
var->get_handler = ngx_http_userid_set_variable;
return NGX_OK;
}