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ngx_http_lua_directive.c
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/*
* Copyright (C) Xiaozhe Wang (chaoslawful)
* Copyright (C) Yichun Zhang (agentzh)
*/
#ifndef DDEBUG
#define DDEBUG 0
#endif
#include "ddebug.h"
#include "ngx_http_lua_common.h"
#include "ngx_http_lua_directive.h"
#include "ngx_http_lua_util.h"
#include "ngx_http_lua_cache.h"
#include "ngx_http_lua_contentby.h"
#include "ngx_http_lua_accessby.h"
#include "ngx_http_lua_rewriteby.h"
#include "ngx_http_lua_logby.h"
#include "ngx_http_lua_headerfilterby.h"
#include "ngx_http_lua_bodyfilterby.h"
#include "ngx_http_lua_initby.h"
#include "ngx_http_lua_initworkerby.h"
#include "ngx_http_lua_shdict.h"
#include "ngx_http_lua_ssl_certby.h"
#include "ngx_http_lua_lex.h"
#include "api/ngx_http_lua_api.h"
#include "ngx_http_lua_log_ringbuf.h"
#include "ngx_http_lua_log.h"
typedef struct ngx_http_lua_block_parser_ctx_s
ngx_http_lua_block_parser_ctx_t;
#if defined(NDK) && NDK
#include "ngx_http_lua_setby.h"
static ngx_int_t ngx_http_lua_set_by_lua_init(ngx_http_request_t *r);
#endif
static u_char *ngx_http_lua_gen_chunk_name(ngx_conf_t *cf, const char *tag,
size_t tag_len);
static ngx_int_t ngx_http_lua_conf_read_lua_token(ngx_conf_t *cf,
ngx_http_lua_block_parser_ctx_t *ctx);
static u_char *ngx_http_lua_strlstrn(u_char *s1, u_char *last, u_char *s2,
size_t n);
struct ngx_http_lua_block_parser_ctx_s {
ngx_uint_t start_line;
int token_len;
};
enum {
FOUND_LEFT_CURLY = 0,
FOUND_RIGHT_CURLY,
FOUND_LEFT_LBRACKET_STR,
FOUND_LBRACKET_STR = FOUND_LEFT_LBRACKET_STR,
FOUND_LEFT_LBRACKET_CMT,
FOUND_LBRACKET_CMT = FOUND_LEFT_LBRACKET_CMT,
FOUND_RIGHT_LBRACKET,
FOUND_COMMENT_LINE,
FOUND_DOUBLE_QUOTED,
FOUND_SINGLE_QUOTED
};
char *
ngx_http_lua_shared_dict(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_lua_main_conf_t *lmcf = conf;
ngx_str_t *value, name;
ngx_shm_zone_t *zone;
ngx_shm_zone_t **zp;
ngx_http_lua_shdict_ctx_t *ctx;
ssize_t size;
if (lmcf->shdict_zones == NULL) {
lmcf->shdict_zones = ngx_palloc(cf->pool, sizeof(ngx_array_t));
if (lmcf->shdict_zones == NULL) {
return NGX_CONF_ERROR;
}
if (ngx_array_init(lmcf->shdict_zones, cf->pool, 2,
sizeof(ngx_shm_zone_t *))
!= NGX_OK)
{
return NGX_CONF_ERROR;
}
}
value = cf->args->elts;
ctx = NULL;
if (value[1].len == 0) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid lua shared dict name \"%V\"", &value[1]);
return NGX_CONF_ERROR;
}
name = value[1];
size = ngx_parse_size(&value[2]);
if (size <= 8191) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid lua shared dict size \"%V\"", &value[2]);
return NGX_CONF_ERROR;
}
ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_lua_shdict_ctx_t));
if (ctx == NULL) {
return NGX_CONF_ERROR;
}
ctx->name = name;
ctx->main_conf = lmcf;
ctx->log = &cf->cycle->new_log;
zone = ngx_http_lua_shared_memory_add(cf, &name, (size_t) size,
&ngx_http_lua_module);
if (zone == NULL) {
return NGX_CONF_ERROR;
}
if (zone->data) {
ctx = zone->data;
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"lua_shared_dict \"%V\" is already defined as "
"\"%V\"", &name, &ctx->name);
return NGX_CONF_ERROR;
}
zone->init = ngx_http_lua_shdict_init_zone;
zone->data = ctx;
zp = ngx_array_push(lmcf->shdict_zones);
if (zp == NULL) {
return NGX_CONF_ERROR;
}
*zp = zone;
lmcf->requires_shm = 1;
return NGX_CONF_OK;
}
char *
ngx_http_lua_code_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
char *p = conf;
ngx_flag_t *fp;
char *ret;
ret = ngx_conf_set_flag_slot(cf, cmd, conf);
if (ret != NGX_CONF_OK) {
return ret;
}
fp = (ngx_flag_t *) (p + cmd->offset);
if (!*fp) {
ngx_conf_log_error(NGX_LOG_ALERT, cf, 0,
"lua_code_cache is off; this will hurt "
"performance");
}
return NGX_CONF_OK;
}
char *
ngx_http_lua_package_cpath(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_lua_main_conf_t *lmcf = conf;
ngx_str_t *value;
if (lmcf->lua_cpath.len != 0) {
return "is duplicate";
}
dd("enter");
value = cf->args->elts;
lmcf->lua_cpath.len = value[1].len;
lmcf->lua_cpath.data = value[1].data;
return NGX_CONF_OK;
}
char *
ngx_http_lua_package_path(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_lua_main_conf_t *lmcf = conf;
ngx_str_t *value;
if (lmcf->lua_path.len != 0) {
return "is duplicate";
}
dd("enter");
value = cf->args->elts;
lmcf->lua_path.len = value[1].len;
lmcf->lua_path.data = value[1].data;
return NGX_CONF_OK;
}
#if defined(NDK) && NDK
char *
ngx_http_lua_set_by_lua_block(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *rv;
ngx_conf_t save;
save = *cf;
cf->handler = ngx_http_lua_set_by_lua;
cf->handler_conf = conf;
rv = ngx_http_lua_conf_lua_block_parse(cf, cmd);
*cf = save;
return rv;
}
char *
ngx_http_lua_set_by_lua(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
u_char *p;
ngx_str_t *value;
ngx_str_t target;
ndk_set_var_t filter;
ngx_http_lua_set_var_data_t *filter_data;
/*
* value[0] = "set_by_lua"
* value[1] = target variable name
* value[2] = lua script source to be executed
* value[3..] = real params
* */
value = cf->args->elts;
target = value[1];
filter.type = NDK_SET_VAR_MULTI_VALUE_DATA;
filter.func = cmd->post;
filter.size = cf->args->nelts - 3; /* get number of real params */
filter_data = ngx_palloc(cf->pool, sizeof(ngx_http_lua_set_var_data_t));
if (filter_data == NULL) {
return NGX_CONF_ERROR;
}
filter_data->size = filter.size;
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_INLINE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
filter_data->key = p;
p = ngx_copy(p, NGX_HTTP_LUA_INLINE_TAG, NGX_HTTP_LUA_INLINE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[2].data, value[2].len);
*p = '\0';
filter_data->script = value[2];
filter.data = filter_data;
return ndk_set_var_multi_value_core(cf, &target, &value[3], &filter);
}
char *
ngx_http_lua_set_by_lua_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
u_char *p;
ngx_str_t *value;
ngx_str_t target;
ndk_set_var_t filter;
ngx_http_lua_set_var_data_t *filter_data;
/*
* value[0] = "set_by_lua_file"
* value[1] = target variable name
* value[2] = lua script file path to be executed
* value[3..] = real params
* */
value = cf->args->elts;
target = value[1];
filter.type = NDK_SET_VAR_MULTI_VALUE_DATA;
filter.func = cmd->post;
filter.size = cf->args->nelts - 2; /* get number of real params and
lua script */
filter_data = ngx_palloc(cf->pool, sizeof(ngx_http_lua_set_var_data_t));
if (filter_data == NULL) {
return NGX_CONF_ERROR;
}
filter_data->size = filter.size;
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_FILE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
filter_data->key = p;
p = ngx_copy(p, NGX_HTTP_LUA_FILE_TAG, NGX_HTTP_LUA_FILE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[2].data, value[2].len);
*p = '\0';
ngx_str_null(&filter_data->script);
filter.data = filter_data;
return ndk_set_var_multi_value_core(cf, &target, &value[2], &filter);
}
ngx_int_t
ngx_http_lua_filter_set_by_lua_inline(ngx_http_request_t *r, ngx_str_t *val,
ngx_http_variable_value_t *v, void *data)
{
lua_State *L;
ngx_int_t rc;
ngx_http_lua_set_var_data_t *filter_data = data;
if (ngx_http_lua_set_by_lua_init(r) != NGX_OK) {
return NGX_ERROR;
}
L = ngx_http_lua_get_lua_vm(r, NULL);
/* load Lua inline script (w/ cache) sp = 1 */
rc = ngx_http_lua_cache_loadbuffer(r->connection->log, L,
filter_data->script.data,
filter_data->script.len,
filter_data->key, "=set_by_lua");
if (rc != NGX_OK) {
return NGX_ERROR;
}
rc = ngx_http_lua_set_by_chunk(L, r, val, v, filter_data->size,
&filter_data->script);
if (rc != NGX_OK) {
return NGX_ERROR;
}
return NGX_OK;
}
ngx_int_t
ngx_http_lua_filter_set_by_lua_file(ngx_http_request_t *r, ngx_str_t *val,
ngx_http_variable_value_t *v, void *data)
{
lua_State *L;
ngx_int_t rc;
u_char *script_path;
size_t nargs;
ngx_http_lua_set_var_data_t *filter_data = data;
dd("set by lua file");
if (ngx_http_lua_set_by_lua_init(r) != NGX_OK) {
return NGX_ERROR;
}
filter_data->script.data = v[0].data;
filter_data->script.len = v[0].len;
/* skip the lua file path argument */
v++;
nargs = filter_data->size - 1;
dd("script: %.*s", (int) filter_data->script.len, filter_data->script.data);
dd("nargs: %d", (int) nargs);
script_path = ngx_http_lua_rebase_path(r->pool, filter_data->script.data,
filter_data->script.len);
if (script_path == NULL) {
return NGX_ERROR;
}
L = ngx_http_lua_get_lua_vm(r, NULL);
/* load Lua script file (w/ cache) sp = 1 */
rc = ngx_http_lua_cache_loadfile(r->connection->log, L, script_path,
filter_data->key);
if (rc != NGX_OK) {
return NGX_ERROR;
}
rc = ngx_http_lua_set_by_chunk(L, r, val, v, nargs, &filter_data->script);
if (rc != NGX_OK) {
return NGX_ERROR;
}
return NGX_OK;
}
#endif /* defined(NDK) && NDK */
char *
ngx_http_lua_rewrite_by_lua_block(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *rv;
ngx_conf_t save;
save = *cf;
cf->handler = ngx_http_lua_rewrite_by_lua;
cf->handler_conf = conf;
rv = ngx_http_lua_conf_lua_block_parse(cf, cmd);
*cf = save;
return rv;
}
char *
ngx_http_lua_rewrite_by_lua(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
u_char *p, *chunkname;
ngx_str_t *value;
ngx_http_lua_main_conf_t *lmcf;
ngx_http_lua_loc_conf_t *llcf = conf;
ngx_http_compile_complex_value_t ccv;
dd("enter");
#if defined(nginx_version) && nginx_version >= 8042 && nginx_version <= 8053
return "does not work with " NGINX_VER;
#endif
/* must specify a content handler */
if (cmd->post == NULL) {
return NGX_CONF_ERROR;
}
if (llcf->rewrite_handler) {
return "is duplicate";
}
value = cf->args->elts;
if (value[1].len == 0) {
/* Oops...Invalid location conf */
ngx_conf_log_error(NGX_LOG_ERR, cf, 0,
"invalid location config: no runnable Lua code");
return NGX_CONF_ERROR;
}
if (cmd->post == ngx_http_lua_rewrite_handler_inline) {
chunkname = ngx_http_lua_gen_chunk_name(cf, "rewrite_by_lua",
sizeof("rewrite_by_lua") - 1);
if (chunkname == NULL) {
return NGX_CONF_ERROR;
}
llcf->rewrite_chunkname = chunkname;
/* Don't eval nginx variables for inline lua code */
llcf->rewrite_src.value = value[1];
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_INLINE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->rewrite_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_INLINE_TAG, NGX_HTTP_LUA_INLINE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
} else {
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &llcf->rewrite_src;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (llcf->rewrite_src.lengths == NULL) {
/* no variable found */
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_FILE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->rewrite_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_FILE_TAG, NGX_HTTP_LUA_FILE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
}
}
llcf->rewrite_handler = (ngx_http_handler_pt) cmd->post;
lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_lua_module);
lmcf->requires_rewrite = 1;
lmcf->requires_capture_filter = 1;
return NGX_CONF_OK;
}
char *
ngx_http_lua_access_by_lua_block(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *rv;
ngx_conf_t save;
save = *cf;
cf->handler = ngx_http_lua_access_by_lua;
cf->handler_conf = conf;
rv = ngx_http_lua_conf_lua_block_parse(cf, cmd);
*cf = save;
return rv;
}
char *
ngx_http_lua_access_by_lua(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
u_char *p, *chunkname;
ngx_str_t *value;
ngx_http_lua_main_conf_t *lmcf;
ngx_http_lua_loc_conf_t *llcf = conf;
ngx_http_compile_complex_value_t ccv;
dd("enter");
/* must specify a content handler */
if (cmd->post == NULL) {
return NGX_CONF_ERROR;
}
if (llcf->access_handler) {
return "is duplicate";
}
value = cf->args->elts;
if (value[1].len == 0) {
/* Oops...Invalid location conf */
ngx_conf_log_error(NGX_LOG_ERR, cf, 0,
"invalid location config: no runnable Lua code");
return NGX_CONF_ERROR;
}
if (cmd->post == ngx_http_lua_access_handler_inline) {
chunkname = ngx_http_lua_gen_chunk_name(cf, "access_by_lua",
sizeof("access_by_lua") - 1);
if (chunkname == NULL) {
return NGX_CONF_ERROR;
}
llcf->access_chunkname = chunkname;
/* Don't eval nginx variables for inline lua code */
llcf->access_src.value = value[1];
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_INLINE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->access_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_INLINE_TAG, NGX_HTTP_LUA_INLINE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
} else {
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &llcf->access_src;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (llcf->access_src.lengths == NULL) {
/* no variable found */
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_FILE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->access_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_FILE_TAG, NGX_HTTP_LUA_FILE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
}
}
llcf->access_handler = (ngx_http_handler_pt) cmd->post;
lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_lua_module);
lmcf->requires_access = 1;
lmcf->requires_capture_filter = 1;
return NGX_CONF_OK;
}
char *
ngx_http_lua_content_by_lua_block(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *rv;
ngx_conf_t save;
save = *cf;
cf->handler = ngx_http_lua_content_by_lua;
cf->handler_conf = conf;
rv = ngx_http_lua_conf_lua_block_parse(cf, cmd);
*cf = save;
return rv;
}
char *
ngx_http_lua_content_by_lua(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
u_char *p;
u_char *chunkname;
ngx_str_t *value;
ngx_http_core_loc_conf_t *clcf;
ngx_http_lua_main_conf_t *lmcf;
ngx_http_lua_loc_conf_t *llcf = conf;
ngx_http_compile_complex_value_t ccv;
dd("enter");
/* must specify a content handler */
if (cmd->post == NULL) {
return NGX_CONF_ERROR;
}
if (llcf->content_handler) {
return "is duplicate";
}
value = cf->args->elts;
dd("value[0]: %.*s", (int) value[0].len, value[0].data);
dd("value[1]: %.*s", (int) value[1].len, value[1].data);
if (value[1].len == 0) {
/* Oops...Invalid location conf */
ngx_conf_log_error(NGX_LOG_ERR, cf, 0,
"invalid location config: no runnable Lua code");
return NGX_CONF_ERROR;
}
if (cmd->post == ngx_http_lua_content_handler_inline) {
chunkname = ngx_http_lua_gen_chunk_name(cf, "content_by_lua",
sizeof("content_by_lua") - 1);
if (chunkname == NULL) {
return NGX_CONF_ERROR;
}
llcf->content_chunkname = chunkname;
dd("chunkname: %s", chunkname);
/* Don't eval nginx variables for inline lua code */
llcf->content_src.value = value[1];
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_INLINE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->content_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_INLINE_TAG, NGX_HTTP_LUA_INLINE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
} else {
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &llcf->content_src;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (llcf->content_src.lengths == NULL) {
/* no variable found */
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_FILE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->content_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_FILE_TAG, NGX_HTTP_LUA_FILE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
}
}
llcf->content_handler = (ngx_http_handler_pt) cmd->post;
lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_lua_module);
lmcf->requires_capture_filter = 1;
/* register location content handler */
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
if (clcf == NULL) {
return NGX_CONF_ERROR;
}
clcf->handler = ngx_http_lua_content_handler;
return NGX_CONF_OK;
}
char *
ngx_http_lua_log_by_lua_block(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *rv;
ngx_conf_t save;
save = *cf;
cf->handler = ngx_http_lua_log_by_lua;
cf->handler_conf = conf;
rv = ngx_http_lua_conf_lua_block_parse(cf, cmd);
*cf = save;
return rv;
}
char *
ngx_http_lua_log_by_lua(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
u_char *p, *chunkname;
ngx_str_t *value;
ngx_http_lua_main_conf_t *lmcf;
ngx_http_lua_loc_conf_t *llcf = conf;
ngx_http_compile_complex_value_t ccv;
dd("enter");
/* must specify a content handler */
if (cmd->post == NULL) {
return NGX_CONF_ERROR;
}
if (llcf->log_handler) {
return "is duplicate";
}
value = cf->args->elts;
if (value[1].len == 0) {
/* Oops...Invalid location conf */
ngx_conf_log_error(NGX_LOG_ERR, cf, 0,
"invalid location config: no runnable Lua code");
return NGX_CONF_ERROR;
}
if (cmd->post == ngx_http_lua_log_handler_inline) {
chunkname = ngx_http_lua_gen_chunk_name(cf, "log_by_lua",
sizeof("log_by_lua") - 1);
if (chunkname == NULL) {
return NGX_CONF_ERROR;
}
llcf->log_chunkname = chunkname;
/* Don't eval nginx variables for inline lua code */
llcf->log_src.value = value[1];
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_INLINE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->log_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_INLINE_TAG, NGX_HTTP_LUA_INLINE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
} else {
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &llcf->log_src;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (llcf->log_src.lengths == NULL) {
/* no variable found */
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_FILE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->log_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_FILE_TAG, NGX_HTTP_LUA_FILE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
}
}
llcf->log_handler = (ngx_http_handler_pt) cmd->post;
lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_lua_module);
lmcf->requires_log = 1;
return NGX_CONF_OK;
}
char *
ngx_http_lua_header_filter_by_lua_block(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *rv;
ngx_conf_t save;
save = *cf;
cf->handler = ngx_http_lua_header_filter_by_lua;
cf->handler_conf = conf;
rv = ngx_http_lua_conf_lua_block_parse(cf, cmd);
*cf = save;
return rv;
}
char *
ngx_http_lua_header_filter_by_lua(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
u_char *p;
ngx_str_t *value;
ngx_http_lua_main_conf_t *lmcf;
ngx_http_lua_loc_conf_t *llcf = conf;
ngx_http_compile_complex_value_t ccv;
dd("enter");
/* must specify a content handler */
if (cmd->post == NULL) {
return NGX_CONF_ERROR;
}
if (llcf->header_filter_handler) {
return "is duplicate";
}
value = cf->args->elts;
if (value[1].len == 0) {
/* Oops...Invalid location conf */
ngx_conf_log_error(NGX_LOG_ERR, cf, 0,
"invalid location config: no runnable Lua code");
return NGX_CONF_ERROR;
}
if (cmd->post == ngx_http_lua_header_filter_inline) {
/* Don't eval nginx variables for inline lua code */
llcf->header_filter_src.value = value[1];
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_INLINE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->header_filter_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_INLINE_TAG, NGX_HTTP_LUA_INLINE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
} else {
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &llcf->header_filter_src;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (llcf->header_filter_src.lengths == NULL) {
/* no variable found */
p = ngx_palloc(cf->pool, NGX_HTTP_LUA_FILE_KEY_LEN + 1);
if (p == NULL) {
return NGX_CONF_ERROR;
}
llcf->header_filter_src_key = p;
p = ngx_copy(p, NGX_HTTP_LUA_FILE_TAG, NGX_HTTP_LUA_FILE_TAG_LEN);
p = ngx_http_lua_digest_hex(p, value[1].data, value[1].len);
*p = '\0';
}
}
llcf->header_filter_handler = (ngx_http_handler_pt) cmd->post;
lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_lua_module);
lmcf->requires_header_filter = 1;
return NGX_CONF_OK;
}
char *
ngx_http_lua_body_filter_by_lua_block(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *rv;
ngx_conf_t save;
save = *cf;
cf->handler = ngx_http_lua_body_filter_by_lua;
cf->handler_conf = conf;
rv = ngx_http_lua_conf_lua_block_parse(cf, cmd);
*cf = save;
return rv;