diff options
Diffstat (limited to 'app/nginx/src/http/ngx_http_script.c')
-rw-r--r-- | app/nginx/src/http/ngx_http_script.c | 1762 |
1 files changed, 0 insertions, 1762 deletions
diff --git a/app/nginx/src/http/ngx_http_script.c b/app/nginx/src/http/ngx_http_script.c deleted file mode 100644 index 96f3ec6..0000000 --- a/app/nginx/src/http/ngx_http_script.c +++ /dev/null @@ -1,1762 +0,0 @@ - -/* - * 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; -} - - -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 != 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; -} - - -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; -} - - -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) 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) 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; - 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) - 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) 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) -{ - e->request->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); -} |