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-rw-r--r--app/nginx/src/http/ngx_http_script.c1762
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);
-}