| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_http.h> |
| |
| |
| static ngx_int_t ngx_http_script_init_arrays(ngx_http_script_compile_t *sc); |
| static ngx_int_t ngx_http_script_done(ngx_http_script_compile_t *sc); |
| static ngx_int_t ngx_http_script_add_copy_code(ngx_http_script_compile_t *sc, |
| ngx_str_t *value, ngx_uint_t last); |
| static ngx_int_t ngx_http_script_add_var_code(ngx_http_script_compile_t *sc, |
| ngx_str_t *name); |
| static ngx_int_t ngx_http_script_add_args_code(ngx_http_script_compile_t *sc); |
| #if (NGX_PCRE) |
| static ngx_int_t ngx_http_script_add_capture_code(ngx_http_script_compile_t *sc, |
| ngx_uint_t n); |
| #endif |
| static ngx_int_t |
| ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc); |
| static size_t ngx_http_script_full_name_len_code(ngx_http_script_engine_t *e); |
| static void ngx_http_script_full_name_code(ngx_http_script_engine_t *e); |
| |
| |
| #define ngx_http_script_exit (u_char *) &ngx_http_script_exit_code |
| |
| static uintptr_t ngx_http_script_exit_code = (uintptr_t) NULL; |
| |
| |
| void |
| ngx_http_script_flush_complex_value(ngx_http_request_t *r, |
| ngx_http_complex_value_t *val) |
| { |
| ngx_uint_t *index; |
| |
| index = val->flushes; |
| |
| if (index) { |
| while (*index != (ngx_uint_t) -1) { |
| |
| if (r->variables[*index].no_cacheable) { |
| r->variables[*index].valid = 0; |
| r->variables[*index].not_found = 0; |
| } |
| |
| index++; |
| } |
| } |
| } |
| |
| |
| ngx_int_t |
| ngx_http_complex_value(ngx_http_request_t *r, ngx_http_complex_value_t *val, |
| ngx_str_t *value) |
| { |
| size_t len; |
| ngx_http_script_code_pt code; |
| ngx_http_script_len_code_pt lcode; |
| ngx_http_script_engine_t e; |
| |
| if (val->lengths == NULL) { |
| *value = val->value; |
| return NGX_OK; |
| } |
| |
| ngx_http_script_flush_complex_value(r, val); |
| |
| ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); |
| |
| e.ip = val->lengths; |
| e.request = r; |
| e.flushed = 1; |
| |
| len = 0; |
| |
| while (*(uintptr_t *) e.ip) { |
| lcode = *(ngx_http_script_len_code_pt *) e.ip; |
| len += lcode(&e); |
| } |
| |
| value->len = len; |
| value->data = ngx_pnalloc(r->pool, len); |
| if (value->data == NULL) { |
| return NGX_ERROR; |
| } |
| |
| e.ip = val->values; |
| e.pos = value->data; |
| e.buf = *value; |
| |
| while (*(uintptr_t *) e.ip) { |
| code = *(ngx_http_script_code_pt *) e.ip; |
| code((ngx_http_script_engine_t *) &e); |
| } |
| |
| *value = e.buf; |
| |
| return NGX_OK; |
| } |
| |
| |
| size_t |
| ngx_http_complex_value_size(ngx_http_request_t *r, |
| ngx_http_complex_value_t *val, size_t default_value) |
| { |
| size_t size; |
| ngx_str_t value; |
| |
| if (val == NULL) { |
| return default_value; |
| } |
| |
| if (val->lengths == NULL) { |
| return val->u.size; |
| } |
| |
| if (ngx_http_complex_value(r, val, &value) != NGX_OK) { |
| return default_value; |
| } |
| |
| size = ngx_parse_size(&value); |
| |
| if (size == (size_t) NGX_ERROR) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "invalid size \"%V\"", &value); |
| return default_value; |
| } |
| |
| return size; |
| } |
| |
| |
| ngx_int_t |
| ngx_http_compile_complex_value(ngx_http_compile_complex_value_t *ccv) |
| { |
| ngx_str_t *v; |
| ngx_uint_t i, n, nv, nc; |
| ngx_array_t flushes, lengths, values, *pf, *pl, *pv; |
| ngx_http_script_compile_t sc; |
| |
| v = ccv->value; |
| |
| nv = 0; |
| nc = 0; |
| |
| for (i = 0; i < v->len; i++) { |
| if (v->data[i] == '$') { |
| if (v->data[i + 1] >= '1' && v->data[i + 1] <= '9') { |
| nc++; |
| |
| } else { |
| nv++; |
| } |
| } |
| } |
| |
| if ((v->len == 0 || v->data[0] != '$') |
| && (ccv->conf_prefix || ccv->root_prefix)) |
| { |
| if (ngx_conf_full_name(ccv->cf->cycle, v, ccv->conf_prefix) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| ccv->conf_prefix = 0; |
| ccv->root_prefix = 0; |
| } |
| |
| ccv->complex_value->value = *v; |
| ccv->complex_value->flushes = NULL; |
| ccv->complex_value->lengths = NULL; |
| ccv->complex_value->values = NULL; |
| |
| if (nv == 0 && nc == 0) { |
| return NGX_OK; |
| } |
| |
| n = nv + 1; |
| |
| if (ngx_array_init(&flushes, ccv->cf->pool, n, sizeof(ngx_uint_t)) |
| != NGX_OK) |
| { |
| return NGX_ERROR; |
| } |
| |
| n = nv * (2 * sizeof(ngx_http_script_copy_code_t) |
| + sizeof(ngx_http_script_var_code_t)) |
| + sizeof(uintptr_t); |
| |
| if (ngx_array_init(&lengths, ccv->cf->pool, n, 1) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| n = (nv * (2 * sizeof(ngx_http_script_copy_code_t) |
| + sizeof(ngx_http_script_var_code_t)) |
| + sizeof(uintptr_t) |
| + v->len |
| + sizeof(uintptr_t) - 1) |
| & ~(sizeof(uintptr_t) - 1); |
| |
| if (ngx_array_init(&values, ccv->cf->pool, n, 1) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| pf = &flushes; |
| pl = &lengths; |
| pv = &values; |
| |
| ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
| |
| sc.cf = ccv->cf; |
| sc.source = v; |
| sc.flushes = &pf; |
| sc.lengths = &pl; |
| sc.values = &pv; |
| sc.complete_lengths = 1; |
| sc.complete_values = 1; |
| sc.zero = ccv->zero; |
| sc.conf_prefix = ccv->conf_prefix; |
| sc.root_prefix = ccv->root_prefix; |
| |
| if (ngx_http_script_compile(&sc) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| if (flushes.nelts) { |
| ccv->complex_value->flushes = flushes.elts; |
| ccv->complex_value->flushes[flushes.nelts] = (ngx_uint_t) -1; |
| } |
| |
| ccv->complex_value->lengths = lengths.elts; |
| ccv->complex_value->values = values.elts; |
| |
| return NGX_OK; |
| } |
| |
| |
| char * |
| ngx_http_set_complex_value_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| char *p = conf; |
| |
| ngx_str_t *value; |
| ngx_http_complex_value_t **cv; |
| ngx_http_compile_complex_value_t ccv; |
| |
| cv = (ngx_http_complex_value_t **) (p + cmd->offset); |
| |
| if (*cv != NGX_CONF_UNSET_PTR && *cv != NULL) { |
| return "is duplicate"; |
| } |
| |
| *cv = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t)); |
| if (*cv == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| value = cf->args->elts; |
| |
| ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| |
| ccv.cf = cf; |
| ccv.value = &value[1]; |
| ccv.complex_value = *cv; |
| |
| if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| char * |
| ngx_http_set_complex_value_zero_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf) |
| { |
| char *p = conf; |
| |
| ngx_str_t *value; |
| ngx_http_complex_value_t **cv; |
| ngx_http_compile_complex_value_t ccv; |
| |
| cv = (ngx_http_complex_value_t **) (p + cmd->offset); |
| |
| if (*cv != NGX_CONF_UNSET_PTR) { |
| return "is duplicate"; |
| } |
| |
| *cv = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t)); |
| if (*cv == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| value = cf->args->elts; |
| |
| ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| |
| ccv.cf = cf; |
| ccv.value = &value[1]; |
| ccv.complex_value = *cv; |
| ccv.zero = 1; |
| |
| if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| char * |
| ngx_http_set_complex_value_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf) |
| { |
| char *p = conf; |
| |
| char *rv; |
| ngx_http_complex_value_t *cv; |
| |
| rv = ngx_http_set_complex_value_slot(cf, cmd, conf); |
| |
| if (rv != NGX_CONF_OK) { |
| return rv; |
| } |
| |
| cv = *(ngx_http_complex_value_t **) (p + cmd->offset); |
| |
| if (cv->lengths) { |
| return NGX_CONF_OK; |
| } |
| |
| cv->u.size = ngx_parse_size(&cv->value); |
| if (cv->u.size == (size_t) NGX_ERROR) { |
| return "invalid value"; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_http_test_predicates(ngx_http_request_t *r, ngx_array_t *predicates) |
| { |
| ngx_str_t val; |
| ngx_uint_t i; |
| ngx_http_complex_value_t *cv; |
| |
| if (predicates == NULL) { |
| return NGX_OK; |
| } |
| |
| cv = predicates->elts; |
| |
| for (i = 0; i < predicates->nelts; i++) { |
| if (ngx_http_complex_value(r, &cv[i], &val) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| if (val.len && (val.len != 1 || val.data[0] != '0')) { |
| return NGX_DECLINED; |
| } |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_http_test_required_predicates(ngx_http_request_t *r, |
| ngx_array_t *predicates) |
| { |
| ngx_str_t val; |
| ngx_uint_t i; |
| ngx_http_complex_value_t *cv; |
| |
| if (predicates == NULL) { |
| return NGX_OK; |
| } |
| |
| cv = predicates->elts; |
| |
| for (i = 0; i < predicates->nelts; i++) { |
| if (ngx_http_complex_value(r, &cv[i], &val) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| if (val.len == 0 || (val.len == 1 && val.data[0] == '0')) { |
| return NGX_DECLINED; |
| } |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| char * |
| ngx_http_set_predicate_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| char *p = conf; |
| |
| ngx_str_t *value; |
| ngx_uint_t i; |
| ngx_array_t **a; |
| ngx_http_complex_value_t *cv; |
| ngx_http_compile_complex_value_t ccv; |
| |
| a = (ngx_array_t **) (p + cmd->offset); |
| |
| if (*a == NGX_CONF_UNSET_PTR) { |
| *a = ngx_array_create(cf->pool, 1, sizeof(ngx_http_complex_value_t)); |
| if (*a == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| value = cf->args->elts; |
| |
| for (i = 1; i < cf->args->nelts; i++) { |
| cv = ngx_array_push(*a); |
| if (cv == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| |
| ccv.cf = cf; |
| ccv.value = &value[i]; |
| ccv.complex_value = cv; |
| |
| if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| ngx_uint_t |
| ngx_http_script_variables_count(ngx_str_t *value) |
| { |
| ngx_uint_t i, n; |
| |
| for (n = 0, i = 0; i < value->len; i++) { |
| if (value->data[i] == '$') { |
| n++; |
| } |
| } |
| |
| return n; |
| } |
| |
| |
| ngx_int_t |
| ngx_http_script_compile(ngx_http_script_compile_t *sc) |
| { |
| u_char ch; |
| ngx_str_t name; |
| ngx_uint_t i, bracket; |
| |
| if (ngx_http_script_init_arrays(sc) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| for (i = 0; i < sc->source->len; /* void */ ) { |
| |
| name.len = 0; |
| |
| if (sc->source->data[i] == '$') { |
| |
| if (++i == sc->source->len) { |
| goto invalid_variable; |
| } |
| |
| if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') { |
| #if (NGX_PCRE) |
| ngx_uint_t n; |
| |
| n = sc->source->data[i] - '0'; |
| |
| if (sc->captures_mask & ((ngx_uint_t) 1 << n)) { |
| sc->dup_capture = 1; |
| } |
| |
| sc->captures_mask |= (ngx_uint_t) 1 << n; |
| |
| if (ngx_http_script_add_capture_code(sc, n) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| i++; |
| |
| continue; |
| #else |
| ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, |
| "using variable \"$%c\" requires " |
| "PCRE library", sc->source->data[i]); |
| return NGX_ERROR; |
| #endif |
| } |
| |
| if (sc->source->data[i] == '{') { |
| bracket = 1; |
| |
| if (++i == sc->source->len) { |
| goto invalid_variable; |
| } |
| |
| name.data = &sc->source->data[i]; |
| |
| } else { |
| bracket = 0; |
| name.data = &sc->source->data[i]; |
| } |
| |
| for ( /* void */ ; i < sc->source->len; i++, name.len++) { |
| ch = sc->source->data[i]; |
| |
| if (ch == '}' && bracket) { |
| i++; |
| bracket = 0; |
| break; |
| } |
| |
| if ((ch >= 'A' && ch <= 'Z') |
| || (ch >= 'a' && ch <= 'z') |
| || (ch >= '0' && ch <= '9') |
| || ch == '_') |
| { |
| continue; |
| } |
| |
| break; |
| } |
| |
| if (bracket) { |
| ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, |
| "the closing bracket in \"%V\" " |
| "variable is missing", &name); |
| return NGX_ERROR; |
| } |
| |
| if (name.len == 0) { |
| goto invalid_variable; |
| } |
| |
| sc->variables++; |
| |
| if (ngx_http_script_add_var_code(sc, &name) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| continue; |
| } |
| |
| if (sc->source->data[i] == '?' && sc->compile_args) { |
| sc->args = 1; |
| sc->compile_args = 0; |
| |
| if (ngx_http_script_add_args_code(sc) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| i++; |
| |
| continue; |
| } |
| |
| name.data = &sc->source->data[i]; |
| |
| while (i < sc->source->len) { |
| |
| if (sc->source->data[i] == '$') { |
| break; |
| } |
| |
| if (sc->source->data[i] == '?') { |
| |
| sc->args = 1; |
| |
| if (sc->compile_args) { |
| break; |
| } |
| } |
| |
| i++; |
| name.len++; |
| } |
| |
| sc->size += name.len; |
| |
| if (ngx_http_script_add_copy_code(sc, &name, (i == sc->source->len)) |
| != NGX_OK) |
| { |
| return NGX_ERROR; |
| } |
| } |
| |
| return ngx_http_script_done(sc); |
| |
| invalid_variable: |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name"); |
| |
| return NGX_ERROR; |
| } |
| |
| |
| u_char * |
| ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value, |
| void *code_lengths, size_t len, void *code_values) |
| { |
| ngx_uint_t i; |
| ngx_http_script_code_pt code; |
| ngx_http_script_len_code_pt lcode; |
| ngx_http_script_engine_t e; |
| ngx_http_core_main_conf_t *cmcf; |
| |
| cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); |
| |
| for (i = 0; i < cmcf->variables.nelts; i++) { |
| if (r->variables[i].no_cacheable) { |
| r->variables[i].valid = 0; |
| r->variables[i].not_found = 0; |
| } |
| } |
| |
| ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); |
| |
| e.ip = code_lengths; |
| e.request = r; |
| e.flushed = 1; |
| |
| while (*(uintptr_t *) e.ip) { |
| lcode = *(ngx_http_script_len_code_pt *) e.ip; |
| len += lcode(&e); |
| } |
| |
| |
| value->len = len; |
| value->data = ngx_pnalloc(r->pool, len); |
| if (value->data == NULL) { |
| return NULL; |
| } |
| |
| e.ip = code_values; |
| e.pos = value->data; |
| |
| while (*(uintptr_t *) e.ip) { |
| code = *(ngx_http_script_code_pt *) e.ip; |
| code((ngx_http_script_engine_t *) &e); |
| } |
| |
| return e.pos; |
| } |
| |
| |
| void |
| ngx_http_script_flush_no_cacheable_variables(ngx_http_request_t *r, |
| ngx_array_t *indices) |
| { |
| ngx_uint_t n, *index; |
| |
| if (indices) { |
| index = indices->elts; |
| for (n = 0; n < indices->nelts; n++) { |
| if (r->variables[index[n]].no_cacheable) { |
| r->variables[index[n]].valid = 0; |
| r->variables[index[n]].not_found = 0; |
| } |
| } |
| } |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_script_init_arrays(ngx_http_script_compile_t *sc) |
| { |
| ngx_uint_t n; |
| |
| if (sc->flushes && *sc->flushes == NULL) { |
| n = sc->variables ? sc->variables : 1; |
| *sc->flushes = ngx_array_create(sc->cf->pool, n, sizeof(ngx_uint_t)); |
| if (*sc->flushes == NULL) { |
| return NGX_ERROR; |
| } |
| } |
| |
| if (*sc->lengths == NULL) { |
| n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t) |
| + sizeof(ngx_http_script_var_code_t)) |
| + sizeof(uintptr_t); |
| |
| *sc->lengths = ngx_array_create(sc->cf->pool, n, 1); |
| if (*sc->lengths == NULL) { |
| return NGX_ERROR; |
| } |
| } |
| |
| if (*sc->values == NULL) { |
| n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t) |
| + sizeof(ngx_http_script_var_code_t)) |
| + sizeof(uintptr_t) |
| + sc->source->len |
| + sizeof(uintptr_t) - 1) |
| & ~(sizeof(uintptr_t) - 1); |
| |
| *sc->values = ngx_array_create(sc->cf->pool, n, 1); |
| if (*sc->values == NULL) { |
| return NGX_ERROR; |
| } |
| } |
| |
| sc->variables = 0; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_script_done(ngx_http_script_compile_t *sc) |
| { |
| ngx_str_t zero; |
| uintptr_t *code; |
| |
| if (sc->zero) { |
| |
| zero.len = 1; |
| zero.data = (u_char *) "\0"; |
| |
| if (ngx_http_script_add_copy_code(sc, &zero, 0) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| } |
| |
| if (sc->conf_prefix || sc->root_prefix) { |
| if (ngx_http_script_add_full_name_code(sc) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| } |
| |
| if (sc->complete_lengths) { |
| code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *code = (uintptr_t) NULL; |
| } |
| |
| if (sc->complete_values) { |
| code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t), |
| &sc->main); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *code = (uintptr_t) NULL; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| void * |
| ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size) |
| { |
| if (*codes == NULL) { |
| *codes = ngx_array_create(pool, 256, 1); |
| if (*codes == NULL) { |
| return NULL; |
| } |
| } |
| |
| return ngx_array_push_n(*codes, size); |
| } |
| |
| |
| void * |
| ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code) |
| { |
| u_char *elts, **p; |
| void *new; |
| |
| elts = codes->elts; |
| |
| new = ngx_array_push_n(codes, size); |
| if (new == NULL) { |
| return NULL; |
| } |
| |
| if (code) { |
| if (elts != codes->elts) { |
| p = code; |
| *p += (u_char *) codes->elts - elts; |
| } |
| } |
| |
| return new; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_script_add_copy_code(ngx_http_script_compile_t *sc, ngx_str_t *value, |
| ngx_uint_t last) |
| { |
| u_char *p; |
| size_t size, len, zero; |
| ngx_http_script_copy_code_t *code; |
| |
| zero = (sc->zero && last); |
| len = value->len + zero; |
| |
| code = ngx_http_script_add_code(*sc->lengths, |
| sizeof(ngx_http_script_copy_code_t), NULL); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = (ngx_http_script_code_pt) (void *) |
| ngx_http_script_copy_len_code; |
| code->len = len; |
| |
| size = (sizeof(ngx_http_script_copy_code_t) + len + sizeof(uintptr_t) - 1) |
| & ~(sizeof(uintptr_t) - 1); |
| |
| code = ngx_http_script_add_code(*sc->values, size, &sc->main); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = ngx_http_script_copy_code; |
| code->len = len; |
| |
| p = ngx_cpymem((u_char *) code + sizeof(ngx_http_script_copy_code_t), |
| value->data, value->len); |
| |
| if (zero) { |
| *p = '\0'; |
| sc->zero = 0; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| size_t |
| ngx_http_script_copy_len_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_script_copy_code_t *code; |
| |
| code = (ngx_http_script_copy_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_copy_code_t); |
| |
| return code->len; |
| } |
| |
| |
| void |
| ngx_http_script_copy_code(ngx_http_script_engine_t *e) |
| { |
| u_char *p; |
| ngx_http_script_copy_code_t *code; |
| |
| code = (ngx_http_script_copy_code_t *) e->ip; |
| |
| p = e->pos; |
| |
| if (!e->skip) { |
| e->pos = ngx_copy(p, e->ip + sizeof(ngx_http_script_copy_code_t), |
| code->len); |
| } |
| |
| e->ip += sizeof(ngx_http_script_copy_code_t) |
| + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1)); |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script copy: \"%*s\"", e->pos - p, p); |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_script_add_var_code(ngx_http_script_compile_t *sc, ngx_str_t *name) |
| { |
| ngx_int_t index, *p; |
| ngx_http_script_var_code_t *code; |
| |
| index = ngx_http_get_variable_index(sc->cf, name); |
| |
| if (index == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (sc->flushes) { |
| p = ngx_array_push(*sc->flushes); |
| if (p == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *p = index; |
| } |
| |
| code = ngx_http_script_add_code(*sc->lengths, |
| sizeof(ngx_http_script_var_code_t), NULL); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = (ngx_http_script_code_pt) (void *) |
| ngx_http_script_copy_var_len_code; |
| code->index = (uintptr_t) index; |
| |
| code = ngx_http_script_add_code(*sc->values, |
| sizeof(ngx_http_script_var_code_t), |
| &sc->main); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = ngx_http_script_copy_var_code; |
| code->index = (uintptr_t) index; |
| |
| return NGX_OK; |
| } |
| |
| |
| size_t |
| ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_variable_value_t *value; |
| ngx_http_script_var_code_t *code; |
| |
| code = (ngx_http_script_var_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_var_code_t); |
| |
| if (e->flushed) { |
| value = ngx_http_get_indexed_variable(e->request, code->index); |
| |
| } else { |
| value = ngx_http_get_flushed_variable(e->request, code->index); |
| } |
| |
| if (value && !value->not_found) { |
| return value->len; |
| } |
| |
| return 0; |
| } |
| |
| |
| void |
| ngx_http_script_copy_var_code(ngx_http_script_engine_t *e) |
| { |
| u_char *p; |
| ngx_http_variable_value_t *value; |
| ngx_http_script_var_code_t *code; |
| |
| code = (ngx_http_script_var_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_var_code_t); |
| |
| if (!e->skip) { |
| |
| if (e->flushed) { |
| value = ngx_http_get_indexed_variable(e->request, code->index); |
| |
| } else { |
| value = ngx_http_get_flushed_variable(e->request, code->index); |
| } |
| |
| if (value && !value->not_found) { |
| p = e->pos; |
| e->pos = ngx_copy(p, value->data, value->len); |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, |
| e->request->connection->log, 0, |
| "http script var: \"%*s\"", e->pos - p, p); |
| } |
| } |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_script_add_args_code(ngx_http_script_compile_t *sc) |
| { |
| uintptr_t *code; |
| |
| code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *code = (uintptr_t) ngx_http_script_mark_args_code; |
| |
| code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t), &sc->main); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *code = (uintptr_t) ngx_http_script_start_args_code; |
| |
| return NGX_OK; |
| } |
| |
| |
| size_t |
| ngx_http_script_mark_args_code(ngx_http_script_engine_t *e) |
| { |
| e->is_args = 1; |
| e->ip += sizeof(uintptr_t); |
| |
| return 1; |
| } |
| |
| |
| void |
| ngx_http_script_start_args_code(ngx_http_script_engine_t *e) |
| { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script args"); |
| |
| e->is_args = 1; |
| e->args = e->pos; |
| e->ip += sizeof(uintptr_t); |
| } |
| |
| |
| #if (NGX_PCRE) |
| |
| void |
| ngx_http_script_regex_start_code(ngx_http_script_engine_t *e) |
| { |
| size_t len; |
| ngx_int_t rc; |
| ngx_uint_t n; |
| ngx_http_request_t *r; |
| ngx_http_script_engine_t le; |
| ngx_http_script_len_code_pt lcode; |
| ngx_http_script_regex_code_t *code; |
| |
| code = (ngx_http_script_regex_code_t *) e->ip; |
| |
| r = e->request; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http script regex: \"%V\"", &code->name); |
| |
| if (code->uri) { |
| e->line = r->uri; |
| } else { |
| e->sp--; |
| e->line.len = e->sp->len; |
| e->line.data = e->sp->data; |
| } |
| |
| rc = ngx_http_regex_exec(r, code->regex, &e->line); |
| |
| if (rc == NGX_DECLINED) { |
| if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) { |
| ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, |
| "\"%V\" does not match \"%V\"", |
| &code->name, &e->line); |
| } |
| |
| r->ncaptures = 0; |
| |
| if (code->test) { |
| if (code->negative_test) { |
| e->sp->len = 1; |
| e->sp->data = (u_char *) "1"; |
| |
| } else { |
| e->sp->len = 0; |
| e->sp->data = (u_char *) ""; |
| } |
| |
| e->sp++; |
| |
| e->ip += sizeof(ngx_http_script_regex_code_t); |
| return; |
| } |
| |
| e->ip += code->next; |
| return; |
| } |
| |
| if (rc == NGX_ERROR) { |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) { |
| ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, |
| "\"%V\" matches \"%V\"", &code->name, &e->line); |
| } |
| |
| if (code->test) { |
| if (code->negative_test) { |
| e->sp->len = 0; |
| e->sp->data = (u_char *) ""; |
| |
| } else { |
| e->sp->len = 1; |
| e->sp->data = (u_char *) "1"; |
| } |
| |
| e->sp++; |
| |
| e->ip += sizeof(ngx_http_script_regex_code_t); |
| return; |
| } |
| |
| if (code->status) { |
| e->status = code->status; |
| |
| if (!code->redirect) { |
| e->ip = ngx_http_script_exit; |
| return; |
| } |
| } |
| |
| if (code->uri) { |
| r->internal = 1; |
| r->valid_unparsed_uri = 0; |
| |
| if (code->break_cycle) { |
| r->valid_location = 0; |
| r->uri_changed = 0; |
| |
| } else { |
| r->uri_changed = 1; |
| } |
| } |
| |
| if (code->lengths == NULL) { |
| e->buf.len = code->size; |
| |
| if (code->uri) { |
| if (r->ncaptures && (r->quoted_uri || r->plus_in_uri)) { |
| e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, |
| NGX_ESCAPE_ARGS); |
| } |
| } |
| |
| for (n = 2; n < r->ncaptures; n += 2) { |
| e->buf.len += r->captures[n + 1] - r->captures[n]; |
| } |
| |
| } else { |
| ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); |
| |
| le.ip = code->lengths->elts; |
| le.line = e->line; |
| le.request = r; |
| le.quote = code->redirect; |
| |
| len = 0; |
| |
| while (*(uintptr_t *) le.ip) { |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| len += lcode(&le); |
| } |
| |
| e->buf.len = len; |
| } |
| |
| if (code->add_args && r->args.len) { |
| e->buf.len += r->args.len + 1; |
| } |
| |
| e->buf.data = ngx_pnalloc(r->pool, e->buf.len); |
| if (e->buf.data == NULL) { |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| e->quote = code->redirect; |
| |
| e->pos = e->buf.data; |
| |
| e->ip += sizeof(ngx_http_script_regex_code_t); |
| } |
| |
| |
| void |
| ngx_http_script_regex_end_code(ngx_http_script_engine_t *e) |
| { |
| u_char *dst, *src; |
| ngx_http_request_t *r; |
| ngx_http_script_regex_end_code_t *code; |
| |
| code = (ngx_http_script_regex_end_code_t *) e->ip; |
| |
| r = e->request; |
| |
| e->quote = 0; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http script regex end"); |
| |
| if (code->redirect) { |
| |
| dst = e->buf.data; |
| src = e->buf.data; |
| |
| ngx_unescape_uri(&dst, &src, e->pos - e->buf.data, |
| NGX_UNESCAPE_REDIRECT); |
| |
| if (src < e->pos) { |
| dst = ngx_movemem(dst, src, e->pos - src); |
| } |
| |
| e->pos = dst; |
| |
| if (code->add_args && r->args.len) { |
| *e->pos++ = (u_char) (code->args ? '&' : '?'); |
| e->pos = ngx_copy(e->pos, r->args.data, r->args.len); |
| } |
| |
| e->buf.len = e->pos - e->buf.data; |
| |
| if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) { |
| ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, |
| "rewritten redirect: \"%V\"", &e->buf); |
| } |
| |
| ngx_http_clear_location(r); |
| |
| r->headers_out.location = ngx_list_push(&r->headers_out.headers); |
| if (r->headers_out.location == NULL) { |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| r->headers_out.location->hash = 1; |
| r->headers_out.location->next = NULL; |
| ngx_str_set(&r->headers_out.location->key, "Location"); |
| r->headers_out.location->value = e->buf; |
| |
| e->ip += sizeof(ngx_http_script_regex_end_code_t); |
| return; |
| } |
| |
| if (e->args) { |
| e->buf.len = e->args - e->buf.data; |
| |
| if (code->add_args && r->args.len) { |
| *e->pos++ = '&'; |
| e->pos = ngx_copy(e->pos, r->args.data, r->args.len); |
| } |
| |
| r->args.len = e->pos - e->args; |
| r->args.data = e->args; |
| |
| e->args = NULL; |
| |
| } else { |
| e->buf.len = e->pos - e->buf.data; |
| |
| if (!code->add_args) { |
| r->args.len = 0; |
| } |
| } |
| |
| if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) { |
| ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, |
| "rewritten data: \"%V\", args: \"%V\"", |
| &e->buf, &r->args); |
| } |
| |
| if (code->uri) { |
| r->uri = e->buf; |
| |
| if (r->uri.len == 0) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "the rewritten URI has a zero length"); |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| ngx_http_set_exten(r); |
| } |
| |
| e->ip += sizeof(ngx_http_script_regex_end_code_t); |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_script_add_capture_code(ngx_http_script_compile_t *sc, ngx_uint_t n) |
| { |
| ngx_http_script_copy_capture_code_t *code; |
| |
| code = ngx_http_script_add_code(*sc->lengths, |
| sizeof(ngx_http_script_copy_capture_code_t), |
| NULL); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = (ngx_http_script_code_pt) (void *) |
| ngx_http_script_copy_capture_len_code; |
| code->n = 2 * n; |
| |
| |
| code = ngx_http_script_add_code(*sc->values, |
| sizeof(ngx_http_script_copy_capture_code_t), |
| &sc->main); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = ngx_http_script_copy_capture_code; |
| code->n = 2 * n; |
| |
| if (sc->ncaptures < n) { |
| sc->ncaptures = n; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| size_t |
| ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e) |
| { |
| int *cap; |
| u_char *p; |
| ngx_uint_t n; |
| ngx_http_request_t *r; |
| ngx_http_script_copy_capture_code_t *code; |
| |
| r = e->request; |
| |
| code = (ngx_http_script_copy_capture_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_copy_capture_code_t); |
| |
| n = code->n; |
| |
| if (n < r->ncaptures) { |
| |
| cap = r->captures; |
| |
| if ((e->is_args || e->quote) |
| && (e->request->quoted_uri || e->request->plus_in_uri)) |
| { |
| p = r->captures_data; |
| |
| return cap[n + 1] - cap[n] |
| + 2 * ngx_escape_uri(NULL, &p[cap[n]], cap[n + 1] - cap[n], |
| NGX_ESCAPE_ARGS); |
| } else { |
| return cap[n + 1] - cap[n]; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| void |
| ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e) |
| { |
| int *cap; |
| u_char *p, *pos; |
| ngx_uint_t n; |
| ngx_http_request_t *r; |
| ngx_http_script_copy_capture_code_t *code; |
| |
| r = e->request; |
| |
| code = (ngx_http_script_copy_capture_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_copy_capture_code_t); |
| |
| n = code->n; |
| |
| pos = e->pos; |
| |
| if (n < r->ncaptures) { |
| |
| cap = r->captures; |
| p = r->captures_data; |
| |
| if ((e->is_args || e->quote) |
| && (e->request->quoted_uri || e->request->plus_in_uri)) |
| { |
| e->pos = (u_char *) ngx_escape_uri(pos, &p[cap[n]], |
| cap[n + 1] - cap[n], |
| NGX_ESCAPE_ARGS); |
| } else { |
| e->pos = ngx_copy(pos, &p[cap[n]], cap[n + 1] - cap[n]); |
| } |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script capture: \"%*s\"", e->pos - pos, pos); |
| } |
| |
| #endif |
| |
| |
| static ngx_int_t |
| ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc) |
| { |
| ngx_http_script_full_name_code_t *code; |
| |
| code = ngx_http_script_add_code(*sc->lengths, |
| sizeof(ngx_http_script_full_name_code_t), |
| NULL); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = (ngx_http_script_code_pt) (void *) |
| ngx_http_script_full_name_len_code; |
| code->conf_prefix = sc->conf_prefix; |
| |
| code = ngx_http_script_add_code(*sc->values, |
| sizeof(ngx_http_script_full_name_code_t), |
| &sc->main); |
| if (code == NULL) { |
| return NGX_ERROR; |
| } |
| |
| code->code = ngx_http_script_full_name_code; |
| code->conf_prefix = sc->conf_prefix; |
| |
| return NGX_OK; |
| } |
| |
| |
| static size_t |
| ngx_http_script_full_name_len_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_script_full_name_code_t *code; |
| |
| code = (ngx_http_script_full_name_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_full_name_code_t); |
| |
| return code->conf_prefix ? ngx_cycle->conf_prefix.len: |
| ngx_cycle->prefix.len; |
| } |
| |
| |
| static void |
| ngx_http_script_full_name_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_script_full_name_code_t *code; |
| |
| ngx_str_t value, *prefix; |
| |
| code = (ngx_http_script_full_name_code_t *) e->ip; |
| |
| value.data = e->buf.data; |
| value.len = e->pos - e->buf.data; |
| |
| prefix = code->conf_prefix ? (ngx_str_t *) &ngx_cycle->conf_prefix: |
| (ngx_str_t *) &ngx_cycle->prefix; |
| |
| if (ngx_get_full_name(e->request->pool, prefix, &value) != NGX_OK) { |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| e->buf = value; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script fullname: \"%V\"", &value); |
| |
| e->ip += sizeof(ngx_http_script_full_name_code_t); |
| } |
| |
| |
| void |
| ngx_http_script_return_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_script_return_code_t *code; |
| |
| code = (ngx_http_script_return_code_t *) e->ip; |
| |
| if (code->status < NGX_HTTP_BAD_REQUEST |
| || code->text.value.len |
| || code->text.lengths) |
| { |
| e->status = ngx_http_send_response(e->request, code->status, NULL, |
| &code->text); |
| } else { |
| e->status = code->status; |
| } |
| |
| e->ip = ngx_http_script_exit; |
| } |
| |
| |
| void |
| ngx_http_script_break_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_request_t *r; |
| |
| r = e->request; |
| |
| if (r->uri_changed) { |
| r->valid_location = 0; |
| r->uri_changed = 0; |
| } |
| |
| e->ip = ngx_http_script_exit; |
| } |
| |
| |
| void |
| ngx_http_script_if_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_script_if_code_t *code; |
| |
| code = (ngx_http_script_if_code_t *) e->ip; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script if"); |
| |
| e->sp--; |
| |
| if (e->sp->len && (e->sp->len != 1 || e->sp->data[0] != '0')) { |
| if (code->loc_conf) { |
| e->request->loc_conf = code->loc_conf; |
| ngx_http_update_location_config(e->request); |
| } |
| |
| e->ip += sizeof(ngx_http_script_if_code_t); |
| return; |
| } |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script if: false"); |
| |
| e->ip += code->next; |
| } |
| |
| |
| void |
| ngx_http_script_equal_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_variable_value_t *val, *res; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script equal"); |
| |
| e->sp--; |
| val = e->sp; |
| res = e->sp - 1; |
| |
| e->ip += sizeof(uintptr_t); |
| |
| if (val->len == res->len |
| && ngx_strncmp(val->data, res->data, res->len) == 0) |
| { |
| *res = ngx_http_variable_true_value; |
| return; |
| } |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script equal: no"); |
| |
| *res = ngx_http_variable_null_value; |
| } |
| |
| |
| void |
| ngx_http_script_not_equal_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_variable_value_t *val, *res; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script not equal"); |
| |
| e->sp--; |
| val = e->sp; |
| res = e->sp - 1; |
| |
| e->ip += sizeof(uintptr_t); |
| |
| if (val->len == res->len |
| && ngx_strncmp(val->data, res->data, res->len) == 0) |
| { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script not equal: no"); |
| |
| *res = ngx_http_variable_null_value; |
| return; |
| } |
| |
| *res = ngx_http_variable_true_value; |
| } |
| |
| |
| void |
| ngx_http_script_file_code(ngx_http_script_engine_t *e) |
| { |
| ngx_str_t path; |
| ngx_http_request_t *r; |
| ngx_open_file_info_t of; |
| ngx_http_core_loc_conf_t *clcf; |
| ngx_http_variable_value_t *value; |
| ngx_http_script_file_code_t *code; |
| |
| value = e->sp - 1; |
| |
| code = (ngx_http_script_file_code_t *) e->ip; |
| e->ip += sizeof(ngx_http_script_file_code_t); |
| |
| path.len = value->len - 1; |
| path.data = value->data; |
| |
| r = e->request; |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http script file op %p \"%V\"", (void *) code->op, &path); |
| |
| clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| |
| ngx_memzero(&of, sizeof(ngx_open_file_info_t)); |
| |
| of.read_ahead = clcf->read_ahead; |
| of.directio = clcf->directio; |
| of.valid = clcf->open_file_cache_valid; |
| of.min_uses = clcf->open_file_cache_min_uses; |
| of.test_only = 1; |
| of.errors = clcf->open_file_cache_errors; |
| of.events = clcf->open_file_cache_events; |
| |
| if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) { |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) |
| != NGX_OK) |
| { |
| if (of.err == 0) { |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| if (of.err != NGX_ENOENT |
| && of.err != NGX_ENOTDIR |
| && of.err != NGX_ENAMETOOLONG) |
| { |
| ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err, |
| "%s \"%s\" failed", of.failed, value->data); |
| } |
| |
| switch (code->op) { |
| |
| case ngx_http_script_file_plain: |
| case ngx_http_script_file_dir: |
| case ngx_http_script_file_exists: |
| case ngx_http_script_file_exec: |
| goto false_value; |
| |
| case ngx_http_script_file_not_plain: |
| case ngx_http_script_file_not_dir: |
| case ngx_http_script_file_not_exists: |
| case ngx_http_script_file_not_exec: |
| goto true_value; |
| } |
| |
| goto false_value; |
| } |
| |
| switch (code->op) { |
| case ngx_http_script_file_plain: |
| if (of.is_file) { |
| goto true_value; |
| } |
| goto false_value; |
| |
| case ngx_http_script_file_not_plain: |
| if (of.is_file) { |
| goto false_value; |
| } |
| goto true_value; |
| |
| case ngx_http_script_file_dir: |
| if (of.is_dir) { |
| goto true_value; |
| } |
| goto false_value; |
| |
| case ngx_http_script_file_not_dir: |
| if (of.is_dir) { |
| goto false_value; |
| } |
| goto true_value; |
| |
| case ngx_http_script_file_exists: |
| if (of.is_file || of.is_dir || of.is_link) { |
| goto true_value; |
| } |
| goto false_value; |
| |
| case ngx_http_script_file_not_exists: |
| if (of.is_file || of.is_dir || of.is_link) { |
| goto false_value; |
| } |
| goto true_value; |
| |
| case ngx_http_script_file_exec: |
| if (of.is_exec) { |
| goto true_value; |
| } |
| goto false_value; |
| |
| case ngx_http_script_file_not_exec: |
| if (of.is_exec) { |
| goto false_value; |
| } |
| goto true_value; |
| } |
| |
| false_value: |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http script file op false"); |
| |
| *value = ngx_http_variable_null_value; |
| return; |
| |
| true_value: |
| |
| *value = ngx_http_variable_true_value; |
| return; |
| } |
| |
| |
| void |
| ngx_http_script_complex_value_code(ngx_http_script_engine_t *e) |
| { |
| size_t len; |
| ngx_http_script_engine_t le; |
| ngx_http_script_len_code_pt lcode; |
| ngx_http_script_complex_value_code_t *code; |
| |
| code = (ngx_http_script_complex_value_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_complex_value_code_t); |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script complex value"); |
| |
| ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); |
| |
| le.ip = code->lengths->elts; |
| le.line = e->line; |
| le.request = e->request; |
| le.quote = e->quote; |
| |
| for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) { |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| } |
| |
| e->buf.len = len; |
| e->buf.data = ngx_pnalloc(e->request->pool, len); |
| if (e->buf.data == NULL) { |
| e->ip = ngx_http_script_exit; |
| e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; |
| return; |
| } |
| |
| e->pos = e->buf.data; |
| |
| e->sp->len = e->buf.len; |
| e->sp->data = e->buf.data; |
| e->sp++; |
| } |
| |
| |
| void |
| ngx_http_script_value_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_script_value_code_t *code; |
| |
| code = (ngx_http_script_value_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_value_code_t); |
| |
| e->sp->len = code->text_len; |
| e->sp->data = (u_char *) code->text_data; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script value: \"%v\"", e->sp); |
| |
| e->sp++; |
| } |
| |
| |
| void |
| ngx_http_script_set_var_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_request_t *r; |
| ngx_http_script_var_code_t *code; |
| |
| code = (ngx_http_script_var_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_var_code_t); |
| |
| r = e->request; |
| |
| e->sp--; |
| |
| r->variables[code->index].len = e->sp->len; |
| r->variables[code->index].valid = 1; |
| r->variables[code->index].no_cacheable = 0; |
| r->variables[code->index].not_found = 0; |
| r->variables[code->index].data = e->sp->data; |
| |
| #if (NGX_DEBUG) |
| { |
| ngx_http_variable_t *v; |
| ngx_http_core_main_conf_t *cmcf; |
| |
| cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); |
| |
| v = cmcf->variables.elts; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script set $%V", &v[code->index].name); |
| } |
| #endif |
| } |
| |
| |
| void |
| ngx_http_script_var_set_handler_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_script_var_handler_code_t *code; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script set var handler"); |
| |
| code = (ngx_http_script_var_handler_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_var_handler_code_t); |
| |
| e->sp--; |
| |
| code->handler(e->request, e->sp, code->data); |
| } |
| |
| |
| void |
| ngx_http_script_var_code(ngx_http_script_engine_t *e) |
| { |
| ngx_http_variable_value_t *value; |
| ngx_http_script_var_code_t *code; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script var"); |
| |
| code = (ngx_http_script_var_code_t *) e->ip; |
| |
| e->ip += sizeof(ngx_http_script_var_code_t); |
| |
| value = ngx_http_get_flushed_variable(e->request, code->index); |
| |
| if (value && !value->not_found) { |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| "http script var: \"%v\"", value); |
| |
| *e->sp = *value; |
| e->sp++; |
| |
| return; |
| } |
| |
| *e->sp = ngx_http_variable_null_value; |
| e->sp++; |
| } |
| |
| |
| void |
| ngx_http_script_nop_code(ngx_http_script_engine_t *e) |
| { |
| e->ip += sizeof(uintptr_t); |
| } |