diff options
Diffstat (limited to 'app/nginx/src/http/modules/ngx_http_rewrite_module.c')
| -rw-r--r-- | app/nginx/src/http/modules/ngx_http_rewrite_module.c | 1022 |
1 files changed, 0 insertions, 1022 deletions
diff --git a/app/nginx/src/http/modules/ngx_http_rewrite_module.c b/app/nginx/src/http/modules/ngx_http_rewrite_module.c deleted file mode 100644 index a6f1fc8..0000000 --- a/app/nginx/src/http/modules/ngx_http_rewrite_module.c +++ /dev/null @@ -1,1022 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_http.h> - - -typedef struct { - ngx_array_t *codes; /* uintptr_t */ - - ngx_uint_t stack_size; - - ngx_flag_t log; - ngx_flag_t uninitialized_variable_warn; -} ngx_http_rewrite_loc_conf_t; - - -static void *ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf); -static char *ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, - void *parent, void *child); -static ngx_int_t ngx_http_rewrite_init(ngx_conf_t *cf); -static char *ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -static char *ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char * ngx_http_rewrite_if_condition(ngx_conf_t *cf, - ngx_http_rewrite_loc_conf_t *lcf); -static char *ngx_http_rewrite_variable(ngx_conf_t *cf, - ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); -static char *ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char * ngx_http_rewrite_value(ngx_conf_t *cf, - ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); - - -static ngx_command_t ngx_http_rewrite_commands[] = { - - { ngx_string("rewrite"), - NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF - |NGX_CONF_TAKE23, - ngx_http_rewrite, - NGX_HTTP_LOC_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("return"), - NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF - |NGX_CONF_TAKE12, - ngx_http_rewrite_return, - NGX_HTTP_LOC_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("break"), - NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF - |NGX_CONF_NOARGS, - ngx_http_rewrite_break, - NGX_HTTP_LOC_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("if"), - NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE, - ngx_http_rewrite_if, - NGX_HTTP_LOC_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("set"), - NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF - |NGX_CONF_TAKE2, - ngx_http_rewrite_set, - NGX_HTTP_LOC_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("rewrite_log"), - NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF - |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_HTTP_LOC_CONF_OFFSET, - offsetof(ngx_http_rewrite_loc_conf_t, log), - NULL }, - - { ngx_string("uninitialized_variable_warn"), - NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF - |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_HTTP_LOC_CONF_OFFSET, - offsetof(ngx_http_rewrite_loc_conf_t, uninitialized_variable_warn), - NULL }, - - ngx_null_command -}; - - -static ngx_http_module_t ngx_http_rewrite_module_ctx = { - NULL, /* preconfiguration */ - ngx_http_rewrite_init, /* postconfiguration */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - NULL, /* create server configuration */ - NULL, /* merge server configuration */ - - ngx_http_rewrite_create_loc_conf, /* create location configuration */ - ngx_http_rewrite_merge_loc_conf /* merge location configuration */ -}; - - -ngx_module_t ngx_http_rewrite_module = { - NGX_MODULE_V1, - &ngx_http_rewrite_module_ctx, /* module context */ - ngx_http_rewrite_commands, /* module directives */ - NGX_HTTP_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static ngx_int_t -ngx_http_rewrite_handler(ngx_http_request_t *r) -{ - ngx_int_t index; - ngx_http_script_code_pt code; - ngx_http_script_engine_t *e; - ngx_http_core_srv_conf_t *cscf; - ngx_http_core_main_conf_t *cmcf; - ngx_http_rewrite_loc_conf_t *rlcf; - - cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); - cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); - index = cmcf->phase_engine.location_rewrite_index; - - if (r->phase_handler == index && r->loc_conf == cscf->ctx->loc_conf) { - /* skipping location rewrite phase for server null location */ - return NGX_DECLINED; - } - - rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); - - if (rlcf->codes == NULL) { - return NGX_DECLINED; - } - - e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t)); - if (e == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - e->sp = ngx_pcalloc(r->pool, - rlcf->stack_size * sizeof(ngx_http_variable_value_t)); - if (e->sp == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - e->ip = rlcf->codes->elts; - e->request = r; - e->quote = 1; - e->log = rlcf->log; - e->status = NGX_DECLINED; - - while (*(uintptr_t *) e->ip) { - code = *(ngx_http_script_code_pt *) e->ip; - code(e); - } - - if (e->status < NGX_HTTP_BAD_REQUEST) { - return e->status; - } - - if (r->err_status == 0) { - return e->status; - } - - return r->err_status; -} - - -static ngx_int_t -ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v, - uintptr_t data) -{ - ngx_http_variable_t *var; - ngx_http_core_main_conf_t *cmcf; - ngx_http_rewrite_loc_conf_t *rlcf; - - rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); - - if (rlcf->uninitialized_variable_warn == 0) { - *v = ngx_http_variable_null_value; - return NGX_OK; - } - - cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); - - var = cmcf->variables.elts; - - /* - * the ngx_http_rewrite_module sets variables directly in r->variables, - * and they should be handled by ngx_http_get_indexed_variable(), - * so the handler is called only if the variable is not initialized - */ - - ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, - "using uninitialized \"%V\" variable", &var[data].name); - - *v = ngx_http_variable_null_value; - - return NGX_OK; -} - - -static void * -ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) -{ - ngx_http_rewrite_loc_conf_t *conf; - - conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); - if (conf == NULL) { - return NULL; - } - - conf->stack_size = NGX_CONF_UNSET_UINT; - conf->log = NGX_CONF_UNSET; - conf->uninitialized_variable_warn = NGX_CONF_UNSET; - - return conf; -} - - -static char * -ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_http_rewrite_loc_conf_t *prev = parent; - ngx_http_rewrite_loc_conf_t *conf = child; - - uintptr_t *code; - - ngx_conf_merge_value(conf->log, prev->log, 0); - ngx_conf_merge_value(conf->uninitialized_variable_warn, - prev->uninitialized_variable_warn, 1); - ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10); - - if (conf->codes == NULL) { - return NGX_CONF_OK; - } - - if (conf->codes == prev->codes) { - return NGX_CONF_OK; - } - - code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); - if (code == NULL) { - return NGX_CONF_ERROR; - } - - *code = (uintptr_t) NULL; - - return NGX_CONF_OK; -} - - -static ngx_int_t -ngx_http_rewrite_init(ngx_conf_t *cf) -{ - ngx_http_handler_pt *h; - ngx_http_core_main_conf_t *cmcf; - - cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); - - h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers); - if (h == NULL) { - return NGX_ERROR; - } - - *h = ngx_http_rewrite_handler; - - h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); - if (h == NULL) { - return NGX_ERROR; - } - - *h = ngx_http_rewrite_handler; - - return NGX_OK; -} - - -static char * -ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_http_rewrite_loc_conf_t *lcf = conf; - - ngx_str_t *value; - ngx_uint_t last; - ngx_regex_compile_t rc; - ngx_http_script_code_pt *code; - ngx_http_script_compile_t sc; - ngx_http_script_regex_code_t *regex; - ngx_http_script_regex_end_code_t *regex_end; - u_char errstr[NGX_MAX_CONF_ERRSTR]; - - regex = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_regex_code_t)); - if (regex == NULL) { - return NGX_CONF_ERROR; - } - - ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); - - value = cf->args->elts; - - ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); - - rc.pattern = value[1]; - rc.err.len = NGX_MAX_CONF_ERRSTR; - rc.err.data = errstr; - - /* TODO: NGX_REGEX_CASELESS */ - - regex->regex = ngx_http_regex_compile(cf, &rc); - if (regex->regex == NULL) { - return NGX_CONF_ERROR; - } - - regex->code = ngx_http_script_regex_start_code; - regex->uri = 1; - regex->name = value[1]; - - if (value[2].data[value[2].len - 1] == '?') { - - /* the last "?" drops the original arguments */ - value[2].len--; - - } else { - regex->add_args = 1; - } - - last = 0; - - if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0 - || ngx_strncmp(value[2].data, "https://", sizeof("https://") - 1) == 0 - || ngx_strncmp(value[2].data, "$scheme", sizeof("$scheme") - 1) == 0) - { - regex->status = NGX_HTTP_MOVED_TEMPORARILY; - regex->redirect = 1; - last = 1; - } - - if (cf->args->nelts == 4) { - if (ngx_strcmp(value[3].data, "last") == 0) { - last = 1; - - } else if (ngx_strcmp(value[3].data, "break") == 0) { - regex->break_cycle = 1; - last = 1; - - } else if (ngx_strcmp(value[3].data, "redirect") == 0) { - regex->status = NGX_HTTP_MOVED_TEMPORARILY; - regex->redirect = 1; - last = 1; - - } else if (ngx_strcmp(value[3].data, "permanent") == 0) { - regex->status = NGX_HTTP_MOVED_PERMANENTLY; - regex->redirect = 1; - last = 1; - - } else { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid parameter \"%V\"", &value[3]); - return NGX_CONF_ERROR; - } - } - - ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); - - sc.cf = cf; - sc.source = &value[2]; - sc.lengths = ®ex->lengths; - sc.values = &lcf->codes; - sc.variables = ngx_http_script_variables_count(&value[2]); - sc.main = regex; - sc.complete_lengths = 1; - sc.compile_args = !regex->redirect; - - if (ngx_http_script_compile(&sc) != NGX_OK) { - return NGX_CONF_ERROR; - } - - regex = sc.main; - - regex->size = sc.size; - regex->args = sc.args; - - if (sc.variables == 0 && !sc.dup_capture) { - regex->lengths = NULL; - } - - regex_end = ngx_http_script_add_code(lcf->codes, - sizeof(ngx_http_script_regex_end_code_t), - ®ex); - if (regex_end == NULL) { - return NGX_CONF_ERROR; - } - - regex_end->code = ngx_http_script_regex_end_code; - regex_end->uri = regex->uri; - regex_end->args = regex->args; - regex_end->add_args = regex->add_args; - regex_end->redirect = regex->redirect; - - if (last) { - code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); - if (code == NULL) { - return NGX_CONF_ERROR; - } - - *code = NULL; - } - - regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts - - (u_char *) regex; - - return NGX_CONF_OK; -} - - -static char * -ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_http_rewrite_loc_conf_t *lcf = conf; - - u_char *p; - ngx_str_t *value, *v; - ngx_http_script_return_code_t *ret; - ngx_http_compile_complex_value_t ccv; - - ret = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_return_code_t)); - if (ret == NULL) { - return NGX_CONF_ERROR; - } - - value = cf->args->elts; - - ngx_memzero(ret, sizeof(ngx_http_script_return_code_t)); - - ret->code = ngx_http_script_return_code; - - p = value[1].data; - - ret->status = ngx_atoi(p, value[1].len); - - if (ret->status == (uintptr_t) NGX_ERROR) { - - if (cf->args->nelts == 2 - && (ngx_strncmp(p, "http://", sizeof("http://") - 1) == 0 - || ngx_strncmp(p, "https://", sizeof("https://") - 1) == 0 - || ngx_strncmp(p, "$scheme", sizeof("$scheme") - 1) == 0)) - { - ret->status = NGX_HTTP_MOVED_TEMPORARILY; - v = &value[1]; - - } else { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid return code \"%V\"", &value[1]); - return NGX_CONF_ERROR; - } - - } else { - - if (ret->status > 999) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid return code \"%V\"", &value[1]); - return NGX_CONF_ERROR; - } - - if (cf->args->nelts == 2) { - return NGX_CONF_OK; - } - - v = &value[2]; - } - - ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); - - ccv.cf = cf; - ccv.value = v; - ccv.complex_value = &ret->text; - - if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { - return NGX_CONF_ERROR; - } - - return NGX_CONF_OK; -} - - -static char * -ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_http_rewrite_loc_conf_t *lcf = conf; - - ngx_http_script_code_pt *code; - - code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); - if (code == NULL) { - return NGX_CONF_ERROR; - } - - *code = ngx_http_script_break_code; - - return NGX_CONF_OK; -} - - -static char * -ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_http_rewrite_loc_conf_t *lcf = conf; - - void *mconf; - char *rv; - u_char *elts; - ngx_uint_t i; - ngx_conf_t save; - ngx_http_module_t *module; - ngx_http_conf_ctx_t *ctx, *pctx; - ngx_http_core_loc_conf_t *clcf, *pclcf; - ngx_http_script_if_code_t *if_code; - ngx_http_rewrite_loc_conf_t *nlcf; - - ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); - if (ctx == NULL) { - return NGX_CONF_ERROR; - } - - pctx = cf->ctx; - ctx->main_conf = pctx->main_conf; - ctx->srv_conf = pctx->srv_conf; - - ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); - if (ctx->loc_conf == NULL) { - return NGX_CONF_ERROR; - } - - for (i = 0; cf->cycle->modules[i]; i++) { - if (cf->cycle->modules[i]->type != NGX_HTTP_MODULE) { - continue; - } - - module = cf->cycle->modules[i]->ctx; - - if (module->create_loc_conf) { - - mconf = module->create_loc_conf(cf); - if (mconf == NULL) { - return NGX_CONF_ERROR; - } - - ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = mconf; - } - } - - pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; - - clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; - clcf->loc_conf = ctx->loc_conf; - clcf->name = pclcf->name; - clcf->noname = 1; - - if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { - return NGX_CONF_ERROR; - } - - if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { - return NGX_CONF_ERROR; - } - - if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); - if (if_code == NULL) { - return NGX_CONF_ERROR; - } - - if_code->code = ngx_http_script_if_code; - - elts = lcf->codes->elts; - - - /* the inner directives must be compiled to the same code array */ - - nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; - nlcf->codes = lcf->codes; - - - save = *cf; - cf->ctx = ctx; - - if (cf->cmd_type == NGX_HTTP_SRV_CONF) { - if_code->loc_conf = NULL; - cf->cmd_type = NGX_HTTP_SIF_CONF; - - } else { - if_code->loc_conf = ctx->loc_conf; - cf->cmd_type = NGX_HTTP_LIF_CONF; - } - - rv = ngx_conf_parse(cf, NULL); - - *cf = save; - - if (rv != NGX_CONF_OK) { - return rv; - } - - - if (elts != lcf->codes->elts) { - if_code = (ngx_http_script_if_code_t *) - ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); - } - - if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts - - (u_char *) if_code; - - /* the code array belong to parent block */ - - nlcf->codes = NULL; - - return NGX_CONF_OK; -} - - -static char * -ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) -{ - u_char *p; - size_t len; - ngx_str_t *value; - ngx_uint_t cur, last; - ngx_regex_compile_t rc; - ngx_http_script_code_pt *code; - ngx_http_script_file_code_t *fop; - ngx_http_script_regex_code_t *regex; - u_char errstr[NGX_MAX_CONF_ERRSTR]; - - value = cf->args->elts; - last = cf->args->nelts - 1; - - if (value[1].len < 1 || value[1].data[0] != '(') { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid condition \"%V\"", &value[1]); - return NGX_CONF_ERROR; - } - - if (value[1].len == 1) { - cur = 2; - - } else { - cur = 1; - value[1].len--; - value[1].data++; - } - - if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid condition \"%V\"", &value[last]); - return NGX_CONF_ERROR; - } - - if (value[last].len == 1) { - last--; - - } else { - value[last].len--; - value[last].data[value[last].len] = '\0'; - } - - len = value[cur].len; - p = value[cur].data; - - if (len > 1 && p[0] == '$') { - - if (cur != last && cur + 2 != last) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid condition \"%V\"", &value[cur]); - return NGX_CONF_ERROR; - } - - if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { - return NGX_CONF_ERROR; - } - - if (cur == last) { - return NGX_CONF_OK; - } - - cur++; - - len = value[cur].len; - p = value[cur].data; - - if (len == 1 && p[0] == '=') { - - if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { - return NGX_CONF_ERROR; - } - - code = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(uintptr_t)); - if (code == NULL) { - return NGX_CONF_ERROR; - } - - *code = ngx_http_script_equal_code; - - return NGX_CONF_OK; - } - - if (len == 2 && p[0] == '!' && p[1] == '=') { - - if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { - return NGX_CONF_ERROR; - } - - code = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(uintptr_t)); - if (code == NULL) { - return NGX_CONF_ERROR; - } - - *code = ngx_http_script_not_equal_code; - return NGX_CONF_OK; - } - - if ((len == 1 && p[0] == '~') - || (len == 2 && p[0] == '~' && p[1] == '*') - || (len == 2 && p[0] == '!' && p[1] == '~') - || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) - { - regex = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_regex_code_t)); - if (regex == NULL) { - return NGX_CONF_ERROR; - } - - ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); - - ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); - - rc.pattern = value[last]; - rc.options = (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0; - rc.err.len = NGX_MAX_CONF_ERRSTR; - rc.err.data = errstr; - - regex->regex = ngx_http_regex_compile(cf, &rc); - if (regex->regex == NULL) { - return NGX_CONF_ERROR; - } - - regex->code = ngx_http_script_regex_start_code; - regex->next = sizeof(ngx_http_script_regex_code_t); - regex->test = 1; - if (p[0] == '!') { - regex->negative_test = 1; - } - regex->name = value[last]; - - return NGX_CONF_OK; - } - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "unexpected \"%V\" in condition", &value[cur]); - return NGX_CONF_ERROR; - - } else if ((len == 2 && p[0] == '-') - || (len == 3 && p[0] == '!' && p[1] == '-')) - { - if (cur + 1 != last) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid condition \"%V\"", &value[cur]); - return NGX_CONF_ERROR; - } - - value[last].data[value[last].len] = '\0'; - value[last].len++; - - if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { - return NGX_CONF_ERROR; - } - - fop = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_file_code_t)); - if (fop == NULL) { - return NGX_CONF_ERROR; - } - - fop->code = ngx_http_script_file_code; - - if (p[1] == 'f') { - fop->op = ngx_http_script_file_plain; - return NGX_CONF_OK; - } - - if (p[1] == 'd') { - fop->op = ngx_http_script_file_dir; - return NGX_CONF_OK; - } - - if (p[1] == 'e') { - fop->op = ngx_http_script_file_exists; - return NGX_CONF_OK; - } - - if (p[1] == 'x') { - fop->op = ngx_http_script_file_exec; - return NGX_CONF_OK; - } - - if (p[0] == '!') { - if (p[2] == 'f') { - fop->op = ngx_http_script_file_not_plain; - return NGX_CONF_OK; - } - - if (p[2] == 'd') { - fop->op = ngx_http_script_file_not_dir; - return NGX_CONF_OK; - } - - if (p[2] == 'e') { - fop->op = ngx_http_script_file_not_exists; - return NGX_CONF_OK; - } - - if (p[2] == 'x') { - fop->op = ngx_http_script_file_not_exec; - return NGX_CONF_OK; - } - } - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid condition \"%V\"", &value[cur]); - return NGX_CONF_ERROR; - } - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid condition \"%V\"", &value[cur]); - - return NGX_CONF_ERROR; -} - - -static char * -ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, - ngx_str_t *value) -{ - ngx_int_t index; - ngx_http_script_var_code_t *var_code; - - value->len--; - value->data++; - - index = ngx_http_get_variable_index(cf, value); - - if (index == NGX_ERROR) { - return NGX_CONF_ERROR; - } - - var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_var_code_t)); - if (var_code == NULL) { - return NGX_CONF_ERROR; - } - - var_code->code = ngx_http_script_var_code; - var_code->index = index; - - return NGX_CONF_OK; -} - - -static char * -ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_http_rewrite_loc_conf_t *lcf = conf; - - ngx_int_t index; - ngx_str_t *value; - ngx_http_variable_t *v; - ngx_http_script_var_code_t *vcode; - ngx_http_script_var_handler_code_t *vhcode; - - value = cf->args->elts; - - if (value[1].data[0] != '$') { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid variable name \"%V\"", &value[1]); - return NGX_CONF_ERROR; - } - - value[1].len--; - value[1].data++; - - v = ngx_http_add_variable(cf, &value[1], - NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_WEAK); - if (v == NULL) { - return NGX_CONF_ERROR; - } - - index = ngx_http_get_variable_index(cf, &value[1]); - if (index == NGX_ERROR) { - return NGX_CONF_ERROR; - } - - if (v->get_handler == NULL) { - v->get_handler = ngx_http_rewrite_var; - v->data = index; - } - - if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { - return NGX_CONF_ERROR; - } - - if (v->set_handler) { - vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_var_handler_code_t)); - if (vhcode == NULL) { - return NGX_CONF_ERROR; - } - - vhcode->code = ngx_http_script_var_set_handler_code; - vhcode->handler = v->set_handler; - vhcode->data = v->data; - - return NGX_CONF_OK; - } - - vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_var_code_t)); - if (vcode == NULL) { - return NGX_CONF_ERROR; - } - - vcode->code = ngx_http_script_set_var_code; - vcode->index = (uintptr_t) index; - - return NGX_CONF_OK; -} - - -static char * -ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, - ngx_str_t *value) -{ - ngx_int_t n; - ngx_http_script_compile_t sc; - ngx_http_script_value_code_t *val; - ngx_http_script_complex_value_code_t *complex; - - n = ngx_http_script_variables_count(value); - - if (n == 0) { - val = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_value_code_t)); - if (val == NULL) { - return NGX_CONF_ERROR; - } - - n = ngx_atoi(value->data, value->len); - - if (n == NGX_ERROR) { - n = 0; - } - - val->code = ngx_http_script_value_code; - val->value = (uintptr_t) n; - val->text_len = (uintptr_t) value->len; - val->text_data = (uintptr_t) value->data; - - return NGX_CONF_OK; - } - - complex = ngx_http_script_start_code(cf->pool, &lcf->codes, - sizeof(ngx_http_script_complex_value_code_t)); - if (complex == NULL) { - return NGX_CONF_ERROR; - } - - complex->code = ngx_http_script_complex_value_code; - complex->lengths = NULL; - - ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); - - sc.cf = cf; - sc.source = value; - sc.lengths = &complex->lengths; - sc.values = &lcf->codes; - sc.variables = n; - sc.complete_lengths = 1; - - if (ngx_http_script_compile(&sc) != NGX_OK) { - return NGX_CONF_ERROR; - } - - return NGX_CONF_OK; -} |