lighttpd 1.4.x
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804 lines
23 KiB
804 lines
23 KiB
%token_prefix TK_ |
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%extra_argument {config_t *ctx} |
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%name configparser |
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%include { |
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#include "first.h" |
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#include "base.h" |
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#include "configfile.h" |
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#include "buffer.h" |
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#include "array.h" |
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#include "http_header.h" /* http_header_hkey_get() */ |
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#include "request.h" /* http_request_host_normalize() */ |
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#include <ctype.h> |
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#include <errno.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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__attribute_pure__ |
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static data_config * configparser_get_data_config(const array *a, const char *k, const size_t klen) { |
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return (data_config *)array_get_data_unset(a, k, klen); |
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} |
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static void configparser_push(config_t *ctx, data_config *dc, int isnew) { |
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if (isnew) { |
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dc->context_ndx = ctx->all_configs->used; |
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force_assert(dc->context_ndx > ctx->current->context_ndx); |
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array_insert_unique(ctx->all_configs, (data_unset *)dc); |
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dc->parent = ctx->current; |
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vector_config_weak_push(&dc->parent->children, dc); |
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} |
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if (ctx->configs_stack.used > 0 && ctx->current->context_ndx == 0) { |
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fprintf(stderr, "Cannot use conditionals inside a global { ... } block\n"); |
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exit(-1); |
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} |
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vector_config_weak_push(&ctx->configs_stack, ctx->current); |
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ctx->current = dc; |
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} |
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static data_config *configparser_pop(config_t *ctx) { |
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data_config *old = ctx->current; |
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ctx->current = vector_config_weak_pop(&ctx->configs_stack); |
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force_assert(old && ctx->current); |
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return old; |
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} |
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/* return a copied variable */ |
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static data_unset *configparser_get_variable(config_t *ctx, const buffer *key) { |
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const data_unset *du; |
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data_config *dc; |
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#if 0 |
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fprintf(stderr, "get var %s\n", key->ptr); |
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#endif |
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for (dc = ctx->current; dc; dc = dc->parent) { |
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#if 0 |
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fprintf(stderr, "get var on block: %s\n", dc->key.ptr); |
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array_print(dc->value, 0); |
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#endif |
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if (NULL != (du = array_get_element_klen(dc->value, BUF_PTR_LEN(key)))) { |
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data_unset *du_copy = du->fn->copy(du); |
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buffer_clear(&du_copy->key); |
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return du_copy; |
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} |
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} |
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return NULL; |
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} |
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/* op1 is to be eat/return by this function if success, op1->key is not cared |
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op2 is left untouch, unreferenced |
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*/ |
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static data_unset *configparser_merge_data(data_unset *op1, const data_unset *op2) { |
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/* type mismatch */ |
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if (op1->type != op2->type) { |
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if (op1->type == TYPE_STRING && op2->type == TYPE_INTEGER) { |
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data_string *ds = (data_string *)op1; |
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buffer_append_int(&ds->value, ((data_integer*)op2)->value); |
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return op1; |
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} else if (op1->type == TYPE_INTEGER && op2->type == TYPE_STRING) { |
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data_string *ds = array_data_string_init(); |
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buffer_append_int(&ds->value, ((data_integer*)op1)->value); |
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buffer_append_string_buffer(&ds->value, &((data_string*)op2)->value); |
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op1->fn->free(op1); |
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return (data_unset *)ds; |
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} else { |
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fprintf(stderr, "data type mismatch, cannot merge\n"); |
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op1->fn->free(op1); |
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return NULL; |
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} |
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} |
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switch (op1->type) { |
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case TYPE_STRING: |
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buffer_append_string_buffer(&((data_string *)op1)->value, &((data_string *)op2)->value); |
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break; |
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case TYPE_INTEGER: |
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((data_integer *)op1)->value += ((data_integer *)op2)->value; |
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break; |
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case TYPE_ARRAY: { |
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array *dst = &((data_array *)op1)->value; |
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array *src = &((data_array *)op2)->value; |
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const data_unset *du, *ddu; |
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size_t i; |
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for (i = 0; i < src->used; i ++) { |
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du = (data_unset *)src->data[i]; |
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if (du) { |
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if (buffer_is_unset(&du->key) |
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|| !(ddu = array_get_element_klen(dst, BUF_PTR_LEN(&du->key)))){ |
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array_insert_unique(dst, du->fn->copy(du)); |
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} else { |
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fprintf(stderr, "Duplicate array-key '%s'\n", du->key.ptr); |
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if (ddu->type == du->type) { |
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/*(ignore if new key/value pair matches existing key/value)*/ |
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if (du->type == TYPE_STRING |
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&& buffer_is_equal(&((data_string *)du)->value, |
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&((data_string *)ddu)->value)) |
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continue; |
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if (du->type == TYPE_INTEGER |
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&& ((data_integer*)du)->value == ((data_integer*)ddu)->value) |
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continue; |
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} |
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op1->fn->free(op1); |
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return NULL; |
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} |
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} |
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} |
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break; |
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} |
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default: |
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force_assert(0); |
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break; |
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} |
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return op1; |
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} |
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__attribute_pure__ |
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static comp_key_t |
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configparser_comp_key_id(const buffer * const obj_tag, const buffer * const comp_tag) |
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{ |
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/* $REQUEST_HEADER["..."] */ |
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/* $SERVER["socket"] */ |
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/* $HTTP["..."] */ |
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if (buffer_eq_slen(obj_tag, CONST_STR_LEN("REQUEST_HEADER"))) |
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return COMP_HTTP_REQUEST_HEADER; |
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else if (buffer_eq_slen(obj_tag, CONST_STR_LEN("SERVER"))) |
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return (buffer_eq_slen(comp_tag, CONST_STR_LEN("socket"))) |
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? COMP_SERVER_SOCKET |
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: COMP_UNSET; |
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else if (buffer_eq_slen(obj_tag, CONST_STR_LEN("HTTP"))) { |
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static const struct { |
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comp_key_t comp; |
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uint32_t len; |
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const char *comp_tag; |
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} comps[] = { |
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{ COMP_HTTP_URL, CONST_LEN_STR("url" ) }, |
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{ COMP_HTTP_HOST, CONST_LEN_STR("host" ) }, |
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{ COMP_HTTP_REQUEST_HEADER, CONST_LEN_STR("referer" ) }, |
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{ COMP_HTTP_USER_AGENT, CONST_LEN_STR("useragent" ) }, |
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{ COMP_HTTP_REQUEST_HEADER, CONST_LEN_STR("user-agent" ) }, |
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{ COMP_HTTP_LANGUAGE, CONST_LEN_STR("language" ) }, |
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{ COMP_HTTP_REQUEST_HEADER, CONST_LEN_STR("cookie" ) }, |
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{ COMP_HTTP_REMOTE_IP, CONST_LEN_STR("remoteip" ) }, |
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{ COMP_HTTP_REMOTE_IP, CONST_LEN_STR("remote-ip" ) }, |
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{ COMP_HTTP_QUERY_STRING, CONST_LEN_STR("querystring" ) }, |
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{ COMP_HTTP_QUERY_STRING, CONST_LEN_STR("query-string" ) }, |
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{ COMP_HTTP_REQUEST_METHOD, CONST_LEN_STR("request-method") }, |
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{ COMP_HTTP_SCHEME, CONST_LEN_STR("scheme" ) } |
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}; |
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for (uint32_t i = 0; i < sizeof(comps)/sizeof(comps[0]); ++i) { |
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if (buffer_eq_slen(comp_tag, comps[i].comp_tag, comps[i].len)) |
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return comps[i].comp; |
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} |
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} |
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return COMP_UNSET; |
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} |
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static config_cond_t |
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configparser_simplify_regex(buffer * const b) |
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{ |
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/* translate simple regex anchored with ^ and/or $ to simpler match types |
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* (note: skips if regex contains any '\\', even if some could be removed, |
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* though we special-case "\.ext"; skips if other '.' found in str) |
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* (currently assumes CONFIG_COND_MATCH input, not CONFIG_COND_NOMATCH) */ |
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uint32_t len = buffer_clen(b); |
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config_cond_t cond = CONFIG_COND_MATCH; |
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int off = 0; |
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if (len && b->ptr[len-1] == '$') { |
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cond = CONFIG_COND_SUFFIX; |
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if (b->ptr[0] == '\\' && b->ptr[1] == '.') |
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off = 2; |
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else if (b->ptr[0] == '^') { |
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off = 1; |
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cond = CONFIG_COND_EQ; |
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} |
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--len; |
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} |
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else if (b->ptr[0] == '^') { |
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off = 1; |
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cond = CONFIG_COND_PREFIX; |
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} |
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else |
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return CONFIG_COND_MATCH; |
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static const char regex_chars[] = "\\^$.|?*+()[]{}"; |
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if (strcspn(b->ptr+off, regex_chars) != len - off) |
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return CONFIG_COND_MATCH; |
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if (off) { /*(remove only first char if (off == 2) to keep '.' in "\.")*/ |
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memmove(b->ptr, b->ptr+1, len-1); |
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--len; |
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} |
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buffer_truncate(b, len); |
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return cond; |
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} |
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static void |
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configparser_parse_condition(config_t * const ctx, const buffer * const obj_tag, const buffer * const comp_tag, config_cond_t cond, buffer * const rvalue) |
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{ |
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const comp_key_t comp = configparser_comp_key_id(obj_tag, comp_tag); |
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if (cond == CONFIG_COND_MATCH && comp != COMP_SERVER_SOCKET) |
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cond = configparser_simplify_regex(rvalue); |
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const char *op = NULL; |
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switch(cond) { |
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case CONFIG_COND_NE: op = "!="; break; |
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case CONFIG_COND_EQ: op = "=="; break; |
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case CONFIG_COND_NOMATCH: op = "!~"; break; |
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case CONFIG_COND_MATCH: op = "=~"; break; |
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case CONFIG_COND_PREFIX: op = "=^"; break; |
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case CONFIG_COND_SUFFIX: op = "=$"; break; |
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default: |
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force_assert(0); |
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return; /* unreachable */ |
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} |
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const uint32_t comp_offset = buffer_clen(&ctx->current->key)+3; |
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buffer * const tb = ctx->srv->tmp_buf; |
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buffer_clear(tb); |
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struct const_iovec iov[] = { |
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{ BUF_PTR_LEN(&ctx->current->key) } |
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,{ CONST_STR_LEN(" / ") } /* comp_offset */ |
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,{ CONST_STR_LEN("$") } |
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,{ BUF_PTR_LEN(obj_tag) } /*(HTTP, REQUEST_HEADER, SERVER)*/ |
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,{ CONST_STR_LEN("[\"") } |
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,{ BUF_PTR_LEN(comp_tag) } |
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,{ CONST_STR_LEN("\"] ") } |
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,{ op, 2 } |
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,{ CONST_STR_LEN(" \"") } |
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,{ BUF_PTR_LEN(rvalue) } |
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,{ CONST_STR_LEN("\"") } |
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}; |
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buffer_append_iovec(tb, iov, sizeof(iov)/sizeof(*iov)); |
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data_config *dc; |
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if (NULL != (dc = configparser_get_data_config(ctx->all_configs, |
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BUF_PTR_LEN(tb)))) { |
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configparser_push(ctx, dc, 0); |
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} |
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else { |
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dc = data_config_init(); |
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dc->cond = cond; |
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dc->comp = comp; |
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buffer_copy_buffer(&dc->key, tb); |
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buffer_copy_buffer(&dc->comp_tag, comp_tag); |
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dc->comp_key = dc->key.ptr + comp_offset; |
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if (COMP_UNSET == dc->comp) { |
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fprintf(stderr, "error comp_key %s", dc->comp_key); |
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ctx->ok = 0; |
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} |
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else if (COMP_HTTP_LANGUAGE == dc->comp) { |
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dc->comp = COMP_HTTP_REQUEST_HEADER; |
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buffer_copy_string_len(&dc->comp_tag, CONST_STR_LEN("Accept-Language")); |
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} |
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else if (COMP_HTTP_USER_AGENT == dc->comp) { |
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dc->comp = COMP_HTTP_REQUEST_HEADER; |
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buffer_copy_string_len(&dc->comp_tag, CONST_STR_LEN("User-Agent")); |
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} |
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else if (COMP_HTTP_REMOTE_IP == dc->comp |
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&& (dc->cond == CONFIG_COND_EQ || |
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dc->cond == CONFIG_COND_NE || |
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dc->cond == CONFIG_COND_PREFIX || |
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dc->cond == CONFIG_COND_SUFFIX)) { |
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if (!config_remoteip_normalize(rvalue, tb)) { |
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fprintf(stderr, "invalid IP addr: %s\n", rvalue->ptr); |
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ctx->ok = 0; |
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} |
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} |
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else if (COMP_SERVER_SOCKET == dc->comp) { |
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/*(redundant with parsing in network.c; not actually required here)*/ |
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if (rvalue->ptr[0] != ':' /*(network.c special-cases ":" and "[]")*/ |
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&& !(rvalue->ptr[0] == '[' && rvalue->ptr[1] == ']') |
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&& !(rvalue->ptr[0] == '/' || rvalue->ptr[0] == '\\')) { /*(UDS)*/ |
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if (http_request_host_normalize(rvalue, 0)) { |
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fprintf(stderr, "invalid IP addr: %s\n", rvalue->ptr); |
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ctx->ok = 0; |
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} |
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} |
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} |
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else if (COMP_HTTP_HOST == dc->comp) { |
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if (dc->cond == CONFIG_COND_EQ || |
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dc->cond == CONFIG_COND_NE || |
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dc->cond == CONFIG_COND_PREFIX || |
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dc->cond == CONFIG_COND_SUFFIX) { |
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if (http_request_host_normalize(rvalue, 0)) { |
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fprintf(stderr, "invalid IP addr: %s\n", rvalue->ptr); |
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ctx->ok = 0; |
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} |
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} |
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} |
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if (COMP_HTTP_REQUEST_HEADER == dc->comp) { |
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dc->ext = http_header_hkey_get(BUF_PTR_LEN(&dc->comp_tag)); |
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} |
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buffer_move(&dc->string, rvalue); |
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if (ctx->ok) |
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configparser_push(ctx, dc, 1); |
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else |
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dc->fn->free((data_unset*) dc); |
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} |
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} |
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static void |
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configparser_parse_else_condition(config_t * const ctx) |
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{ |
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data_config * const dc = data_config_init(); |
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dc->cond = CONFIG_COND_ELSE; |
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buffer_append_str2(&dc->key, BUF_PTR_LEN(&ctx->current->key), |
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CONST_STR_LEN(" / " |
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"else_tmp_token")); |
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configparser_push(ctx, dc, 1); |
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} |
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} |
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%parse_failure { |
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ctx->ok = 0; |
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} |
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input ::= metalines. |
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metalines ::= metalines metaline. |
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metalines ::= . |
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metaline ::= varline. |
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metaline ::= global. |
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metaline ::= condlines(A) EOL. { A = NULL; } |
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metaline ::= include. |
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metaline ::= include_shell. |
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metaline ::= EOL. |
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%type value {data_unset *} |
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%type expression {data_unset *} |
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%type aelement {data_unset *} |
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%type condline {data_config *} |
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%type cond_else {data_config *} |
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%type condlines {data_config *} |
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%type aelements {array *} |
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%type array {array *} |
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%type key {buffer *} |
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%type stringop {buffer *} |
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%type cond {config_cond_t } |
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%destructor value { if ($$) $$->fn->free($$); } |
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%destructor expression { if ($$) $$->fn->free($$); } |
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%destructor aelement { if ($$) $$->fn->free($$); } |
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%destructor aelements { array_free($$); } |
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%destructor array { array_free($$); } |
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%destructor key { buffer_free($$); } |
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%destructor stringop { buffer_free($$); } |
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%token_type {buffer *} |
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%token_destructor { buffer_free($$); } |
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varline ::= key(A) ASSIGN expression(B). { |
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if (ctx->ok) { |
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buffer_copy_buffer(&B->key, A); |
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if (strncmp(A->ptr, "env.", sizeof("env.") - 1) == 0) { |
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fprintf(stderr, "Setting env variable is not supported in conditional %d %s: %s\n", |
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ctx->current->context_ndx, |
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ctx->current->key.ptr, A->ptr); |
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ctx->ok = 0; |
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} else if (NULL == array_get_element_klen(ctx->current->value, BUF_PTR_LEN(&B->key))) { |
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array_insert_unique(ctx->current->value, B); |
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B = NULL; |
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} else { |
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fprintf(stderr, "Duplicate config variable in conditional %d %s: %s\n", |
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ctx->current->context_ndx, |
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ctx->current->key.ptr, B->key.ptr); |
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ctx->ok = 0; |
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} |
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} |
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buffer_free(A); |
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A = NULL; |
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if (B) B->fn->free(B); |
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B = NULL; |
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} |
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varline ::= key(A) FORCE_ASSIGN expression(B). { |
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if (ctx->ok) { |
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if (strncmp(A->ptr, "env.", sizeof("env.") - 1) == 0) { |
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fprintf(stderr, "Setting env variable is not supported in conditional %d %s: %s\n", |
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ctx->current->context_ndx, |
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ctx->current->key.ptr, A->ptr); |
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ctx->ok = 0; |
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} else { |
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buffer_copy_buffer(&B->key, A); |
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array_replace(ctx->current->value, B); |
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B = NULL; |
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} |
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} |
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buffer_free(A); |
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A = NULL; |
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if (B) B->fn->free(B); |
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B = NULL; |
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} |
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|
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varline ::= key(A) APPEND expression(B). { |
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if (ctx->ok) { |
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array *vars = ctx->current->value; |
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data_unset *du; |
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if (strncmp(A->ptr, "env.", sizeof("env.") - 1) == 0) { |
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fprintf(stderr, "Appending env variable is not supported in conditional %d %s: %s\n", |
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ctx->current->context_ndx, |
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ctx->current->key.ptr, A->ptr); |
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ctx->ok = 0; |
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} else if (NULL != (du = array_extract_element_klen(vars, BUF_PTR_LEN(A))) || NULL != (du = configparser_get_variable(ctx, A))) { |
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du = configparser_merge_data(du, B); |
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if (NULL == du) { |
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ctx->ok = 0; |
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} |
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else { |
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buffer_copy_buffer(&du->key, A); |
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array_insert_unique(ctx->current->value, du); |
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} |
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} else { |
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buffer_copy_buffer(&B->key, A); |
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array_insert_unique(ctx->current->value, B); |
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B = NULL; |
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} |
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} |
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buffer_free(A); |
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A = NULL; |
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if (B) B->fn->free(B); |
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B = NULL; |
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} |
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key(A) ::= LKEY(B). { |
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if (strchr(B->ptr, '.') == NULL) { |
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buffer_copy_string((A = buffer_init()), "var."); |
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buffer_append_string_buffer(A, B); |
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} else { |
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A = B; |
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B = NULL; |
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} |
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buffer_free(B); |
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B = NULL; |
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} |
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expression(A) ::= expression(B) PLUS value(C). { |
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A = NULL; |
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if (ctx->ok) { |
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A = configparser_merge_data(B, C); |
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B = NULL; |
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if (NULL == A) { |
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ctx->ok = 0; |
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} |
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} |
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if (B) B->fn->free(B); |
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B = NULL; |
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if (C) C->fn->free(C); |
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C = NULL; |
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} |
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expression(A) ::= value(B). { |
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A = B; |
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B = NULL; |
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} |
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value(A) ::= key(B). { |
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A = NULL; |
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if (ctx->ok) { |
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if (strncmp(B->ptr, "env.", sizeof("env.") - 1) == 0) { |
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char *env; |
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|
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if (NULL != (env = getenv(B->ptr + 4))) { |
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data_string *ds; |
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ds = array_data_string_init(); |
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buffer_append_string(&ds->value, env); |
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A = (data_unset *)ds; |
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} |
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else { |
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fprintf(stderr, "Undefined env variable: %s\n", B->ptr + 4); |
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ctx->ok = 0; |
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} |
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} else if (NULL == (A = configparser_get_variable(ctx, B))) { |
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fprintf(stderr, "Undefined config variable: %s\n", B->ptr); |
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ctx->ok = 0; |
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} |
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} |
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buffer_free(B); |
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B = NULL; |
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} |
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value(A) ::= STRING(B). { |
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A = (data_unset *)array_data_string_init(); |
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/* assumes array_data_string_init() result does not need swap, buffer_free()*/ |
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memcpy(&((data_string *)A)->value, B, sizeof(*B)); |
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free(B); |
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B = NULL; |
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} |
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|
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value(A) ::= INTEGER(B). { |
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char *endptr; |
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A = (data_unset *)array_data_integer_init(); |
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errno = 0; |
|
((data_integer *)(A))->value = strtol(B->ptr, &endptr, 10); |
|
/* skip trailing whitespace */ |
|
if (endptr != B->ptr) while (isspace(*(unsigned char *)endptr)) endptr++; |
|
if (0 != errno || *endptr != '\0') { |
|
fprintf(stderr, "error parsing number: '%s'\n", B->ptr); |
|
ctx->ok = 0; |
|
} |
|
buffer_free(B); |
|
B = NULL; |
|
} |
|
value(A) ::= array(B). { |
|
A = (data_unset *)array_data_array_init(); |
|
/* assumes array_data_array_init() result does not need swap, array_free() */ |
|
memcpy(&((data_array *)(A))->value, B, sizeof(*B)); |
|
free(B); |
|
B = NULL; |
|
} |
|
array(A) ::= LPARAN RPARAN. { |
|
A = array_init(8); |
|
} |
|
array(A) ::= LPARAN aelements(B) RPARAN. { |
|
A = B; |
|
B = NULL; |
|
} |
|
|
|
aelements(A) ::= aelements(C) COMMA aelement(B). { |
|
A = NULL; |
|
if (ctx->ok) { |
|
if (buffer_is_unset(&B->key) || |
|
NULL == array_get_element_klen(C, BUF_PTR_LEN(&B->key))) { |
|
array_insert_unique(C, B); |
|
B = NULL; |
|
} else { |
|
fprintf(stderr, "Error: duplicate array-key: %s. Please get rid of the duplicate entry.\n", |
|
B->key.ptr); |
|
ctx->ok = 0; |
|
} |
|
|
|
A = C; |
|
C = NULL; |
|
} |
|
array_free(C); |
|
C = NULL; |
|
if (B) B->fn->free(B); |
|
B = NULL; |
|
} |
|
|
|
aelements(A) ::= aelements(C) COMMA. { |
|
A = C; |
|
C = NULL; |
|
} |
|
|
|
aelements(A) ::= aelement(B). { |
|
A = NULL; |
|
if (ctx->ok) { |
|
A = array_init(4); |
|
array_insert_unique(A, B); |
|
B = NULL; |
|
} |
|
if (B) B->fn->free(B); |
|
B = NULL; |
|
} |
|
|
|
aelement(A) ::= expression(B). { |
|
A = B; |
|
B = NULL; |
|
} |
|
aelement(A) ::= stringop(B) ARRAY_ASSIGN expression(C). { |
|
A = NULL; |
|
if (ctx->ok) { |
|
buffer_copy_buffer(&C->key, B); |
|
|
|
A = C; |
|
C = NULL; |
|
} |
|
if (C) C->fn->free(C); |
|
C = NULL; |
|
buffer_free(B); |
|
B = NULL; |
|
} |
|
|
|
eols ::= EOL. |
|
eols ::= . |
|
|
|
globalstart ::= GLOBAL. { |
|
data_config *dc; |
|
dc = configparser_get_data_config(ctx->srv->config_context, CONST_STR_LEN("global")); |
|
force_assert(dc); |
|
configparser_push(ctx, dc, 0); |
|
} |
|
|
|
global ::= globalstart LCURLY metalines RCURLY. { |
|
configparser_pop(ctx); |
|
} |
|
|
|
condlines(A) ::= condlines(B) eols ELSE condline(C). { |
|
A = NULL; |
|
if (ctx->ok) { |
|
if (B->context_ndx >= C->context_ndx) { |
|
fprintf(stderr, "unreachable else condition\n"); |
|
ctx->ok = 0; |
|
} |
|
if (B->cond == CONFIG_COND_ELSE) { |
|
fprintf(stderr, "unreachable condition following else catch-all\n"); |
|
ctx->ok = 0; |
|
} |
|
C->prev = B; |
|
B->next = C; |
|
A = C; |
|
} |
|
B = NULL; |
|
C = NULL; |
|
} |
|
|
|
condlines(A) ::= condlines(B) eols ELSE cond_else(C). { |
|
A = NULL; |
|
if (ctx->ok) { |
|
if (B->context_ndx >= C->context_ndx) { |
|
fprintf(stderr, "unreachable else condition\n"); |
|
ctx->ok = 0; |
|
} |
|
if (B->cond == CONFIG_COND_ELSE) { |
|
fprintf(stderr, "unreachable condition following else catch-all\n"); |
|
ctx->ok = 0; |
|
} |
|
} |
|
if (ctx->ok) { |
|
size_t pos; |
|
data_config *dc; |
|
dc = (data_config *)array_extract_element_klen(ctx->all_configs, BUF_PTR_LEN(&C->key)); |
|
force_assert(C == dc); |
|
buffer_copy_buffer(&C->key, &B->key); |
|
C->comp_key = C->key.ptr + (B->comp_key - B->key.ptr); |
|
C->comp = B->comp; |
|
/*buffer_copy_buffer(&C->string, &B->string);*/ |
|
/* -2 for "==" and minus 3 for spaces and quotes around string (in key) */ |
|
pos = buffer_clen(&C->key) - buffer_clen(&B->string) - 5; |
|
switch(B->cond) { |
|
case CONFIG_COND_NE: |
|
C->key.ptr[pos] = '='; /* opposite cond */ |
|
/*buffer_copy_string_len(C->op, CONST_STR_LEN("=="));*/ |
|
break; |
|
case CONFIG_COND_EQ: |
|
C->key.ptr[pos] = '!'; /* opposite cond */ |
|
/*buffer_copy_string_len(C->op, CONST_STR_LEN("!="));*/ |
|
break; |
|
case CONFIG_COND_NOMATCH: |
|
C->key.ptr[pos] = '='; /* opposite cond */ |
|
/*buffer_copy_string_len(C->op, CONST_STR_LEN("=~"));*/ |
|
break; |
|
case CONFIG_COND_MATCH: |
|
C->key.ptr[pos] = '!'; /* opposite cond */ |
|
/*buffer_copy_string_len(C->op, CONST_STR_LEN("!~"));*/ |
|
break; |
|
case CONFIG_COND_PREFIX: |
|
C->key.ptr[pos] = '!'; /* opposite cond */ |
|
/*buffer_copy_string_len(C->op, CONST_STR_LEN("!^"));*/ |
|
break; |
|
case CONFIG_COND_SUFFIX: |
|
C->key.ptr[pos] = '!'; /* opposite cond */ |
|
/*buffer_copy_string_len(C->op, CONST_STR_LEN("!$"));*/ |
|
break; |
|
default: /* should not happen; CONFIG_COND_ELSE checked further above */ |
|
force_assert(0); |
|
} |
|
|
|
if (NULL == (dc = configparser_get_data_config(ctx->all_configs, BUF_PTR_LEN(&C->key)))) { |
|
/* re-insert into ctx->all_configs with new C->key */ |
|
array_insert_unique(ctx->all_configs, (data_unset *)C); |
|
C->prev = B; |
|
B->next = C; |
|
} else { |
|
fprintf(stderr, "unreachable else condition\n"); |
|
ctx->ok = 0; |
|
C->fn->free((data_unset *)C); |
|
C = dc; |
|
} |
|
|
|
A = C; |
|
} |
|
B = NULL; |
|
C = NULL; |
|
} |
|
|
|
condlines(A) ::= condline(B). { |
|
A = B; |
|
B = NULL; |
|
} |
|
|
|
condline(A) ::= context LCURLY metalines RCURLY. { |
|
A = NULL; |
|
if (ctx->ok) { |
|
A = configparser_pop(ctx); |
|
} |
|
} |
|
|
|
cond_else(A) ::= context_else LCURLY metalines RCURLY. { |
|
A = NULL; |
|
if (ctx->ok) { |
|
A = configparser_pop(ctx); |
|
} |
|
} |
|
|
|
context ::= DOLLAR SRVVARNAME(B) LBRACKET stringop(C) RBRACKET cond(E) expression(D). { |
|
|
|
if (ctx->ok && D->type != TYPE_STRING) { |
|
fprintf(stderr, "rvalue must be string"); |
|
ctx->ok = 0; |
|
} |
|
|
|
if (ctx->ok) { |
|
configparser_parse_condition(ctx, B, C, E, &((data_string *)D)->value); |
|
} |
|
|
|
buffer_free(B); |
|
B = NULL; |
|
buffer_free(C); |
|
C = NULL; |
|
D->fn->free(D); |
|
D = NULL; |
|
} |
|
|
|
context_else ::= . { |
|
if (ctx->ok) { |
|
configparser_parse_else_condition(ctx); |
|
} |
|
} |
|
|
|
cond(A) ::= EQ. { |
|
A = CONFIG_COND_EQ; |
|
} |
|
cond(A) ::= MATCH. { |
|
A = CONFIG_COND_MATCH; |
|
} |
|
cond(A) ::= NE. { |
|
A = CONFIG_COND_NE; |
|
} |
|
cond(A) ::= NOMATCH. { |
|
A = CONFIG_COND_NOMATCH; |
|
} |
|
cond(A) ::= PREFIX. { |
|
A = CONFIG_COND_PREFIX; |
|
} |
|
cond(A) ::= SUFFIX. { |
|
A = CONFIG_COND_SUFFIX; |
|
} |
|
|
|
stringop(A) ::= expression(B). { |
|
A = NULL; |
|
if (ctx->ok) { |
|
if (B->type == TYPE_STRING) { |
|
buffer_copy_buffer((A = buffer_init()), &((data_string*)B)->value); |
|
} else if (B->type == TYPE_INTEGER) { |
|
A = buffer_init(); |
|
buffer_append_int(A, ((data_integer *)B)->value); |
|
} else { |
|
fprintf(stderr, "operand must be string"); |
|
ctx->ok = 0; |
|
} |
|
} |
|
if (B) B->fn->free(B); |
|
B = NULL; |
|
} |
|
|
|
include ::= INCLUDE stringop(A). { |
|
if (ctx->ok) { |
|
if (0 != config_parse_file(ctx->srv, ctx, A->ptr)) { |
|
ctx->ok = 0; |
|
} |
|
} |
|
buffer_free(A); |
|
A = NULL; |
|
} |
|
|
|
include_shell ::= INCLUDE_SHELL stringop(A). { |
|
if (ctx->ok) { |
|
if (0 != config_parse_cmd(ctx->srv, ctx, A->ptr)) { |
|
ctx->ok = 0; |
|
} |
|
} |
|
buffer_free(A); |
|
A = NULL; |
|
}
|
|
|