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src/stream/ngx_stream_set_module.c - nginx source code
Global variables defined
Data types defined
Functions defined
Source code
- #include <ngx_config.h>
- #include <ngx_core.h>
- #include <ngx_stream.h>
- typedef struct {
- ngx_int_t index;
- ngx_stream_set_variable_pt set_handler;
- uintptr_t data;
- ngx_stream_complex_value_t value;
- } ngx_stream_set_cmd_t;
- typedef struct {
- ngx_array_t commands;
- } ngx_stream_set_srv_conf_t;
- static ngx_int_t ngx_stream_set_handler(ngx_stream_session_t *s);
- static ngx_int_t ngx_stream_set_var(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data);
- static ngx_int_t ngx_stream_set_init(ngx_conf_t *cf);
- static void *ngx_stream_set_create_srv_conf(ngx_conf_t *cf);
- static char *ngx_stream_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
- static ngx_command_t ngx_stream_set_commands[] = {
- { ngx_string("set"),
- NGX_STREAM_SRV_CONF|NGX_CONF_TAKE2,
- ngx_stream_set,
- NGX_STREAM_SRV_CONF_OFFSET,
- 0,
- NULL },
- ngx_null_command
- };
- static ngx_stream_module_t ngx_stream_set_module_ctx = {
- NULL,
- ngx_stream_set_init,
- NULL,
- NULL,
- ngx_stream_set_create_srv_conf,
- NULL
- };
- ngx_module_t ngx_stream_set_module = {
- NGX_MODULE_V1,
- &ngx_stream_set_module_ctx,
- ngx_stream_set_commands,
- NGX_STREAM_MODULE,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NGX_MODULE_V1_PADDING
- };
- static ngx_int_t
- ngx_stream_set_handler(ngx_stream_session_t *s)
- {
- ngx_str_t str;
- ngx_uint_t i;
- ngx_stream_set_cmd_t *cmds;
- ngx_stream_set_srv_conf_t *scf;
- ngx_stream_variable_value_t vv;
- scf = ngx_stream_get_module_srv_conf(s, ngx_stream_set_module);
- cmds = scf->commands.elts;
- vv = ngx_stream_variable_null_value;
- for (i = 0; i < scf->commands.nelts; i++) {
- if (ngx_stream_complex_value(s, &cmds[i].value, &str) != NGX_OK) {
- return NGX_ERROR;
- }
- if (cmds[i].set_handler != NULL) {
- vv.len = str.len;
- vv.data = str.data;
- cmds[i].set_handler(s, &vv, cmds[i].data);
- } else {
- s->variables[cmds[i].index].len = str.len;
- s->variables[cmds[i].index].valid = 1;
- s->variables[cmds[i].index].no_cacheable = 0;
- s->variables[cmds[i].index].not_found = 0;
- s->variables[cmds[i].index].data = str.data;
- }
- }
- return NGX_DECLINED;
- }
- static ngx_int_t
- ngx_stream_set_var(ngx_stream_session_t *s, ngx_stream_variable_value_t *v,
- uintptr_t data)
- {
- *v = ngx_stream_variable_null_value;
- return NGX_OK;
- }
- static ngx_int_t
- ngx_stream_set_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_PREACCESS_PHASE].handlers);
- if (h == NULL) {
- return NGX_ERROR;
- }
- *h = ngx_stream_set_handler;
- return NGX_OK;
- }
- static void *
- ngx_stream_set_create_srv_conf(ngx_conf_t *cf)
- {
- ngx_stream_set_srv_conf_t *conf;
- conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_set_srv_conf_t));
- if (conf == NULL) {
- return NULL;
- }
-
- return conf;
- }
- static char *
- ngx_stream_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
- {
- ngx_stream_set_srv_conf_t *scf = conf;
- ngx_str_t *args;
- ngx_int_t index;
- ngx_stream_set_cmd_t *set_cmd;
- ngx_stream_variable_t *v;
- ngx_stream_compile_complex_value_t ccv;
- args = cf->args->elts;
- if (args[1].data[0] != '$') {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
- "invalid variable name \"%V\"", &args[1]);
- return NGX_CONF_ERROR;
- }
- args[1].len--;
- args[1].data++;
- v = ngx_stream_add_variable(cf, &args[1],
- NGX_STREAM_VAR_CHANGEABLE|NGX_STREAM_VAR_WEAK);
- if (v == NULL) {
- return NGX_CONF_ERROR;
- }
- index = ngx_stream_get_variable_index(cf, &args[1]);
- if (index == NGX_ERROR) {
- return NGX_CONF_ERROR;
- }
- if (v->get_handler == NULL) {
- v->get_handler = ngx_stream_set_var;
- }
- if (scf->commands.elts == NULL) {
- if (ngx_array_init(&scf->commands, cf->pool, 1,
- sizeof(ngx_stream_set_cmd_t))
- != NGX_OK)
- {
- return NGX_CONF_ERROR;
- }
- }
- set_cmd = ngx_array_push(&scf->commands);
- if (set_cmd == NULL) {
- return NGX_CONF_ERROR;
- }
- set_cmd->index = index;
- set_cmd->set_handler = v->set_handler;
- set_cmd->data = v->data;
- ngx_memzero(&ccv, sizeof(ngx_stream_compile_complex_value_t));
- ccv.cf = cf;
- ccv.value = &args[2];
- ccv.complex_value = &set_cmd->value;
- if (ngx_stream_compile_complex_value(&ccv) != NGX_OK) {
- return NGX_CONF_ERROR;
- }
- return NGX_CONF_OK;
- }
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