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config_node.c
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config_node.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Cherokee
*
* Authors:
* Alvaro Lopez Ortega <alvaro@alobbs.com>
*
* Copyright (C) 2001-2014 Alvaro Lopez Ortega
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "common-internal.h"
#include "config_node.h"
#include "config_reader.h"
#include "util.h"
#define ENTRIES "config"
/* Implements _new() and _free()
*/
CHEROKEE_ADD_FUNC_NEW (config_node);
CHEROKEE_ADD_FUNC_FREE (config_node);
ret_t
cherokee_config_node_init (cherokee_config_node_t *conf)
{
INIT_LIST_HEAD (&conf->entry);
INIT_LIST_HEAD (&conf->child);
cherokee_buffer_init (&conf->key);
cherokee_buffer_init (&conf->val);
return ret_ok;
}
ret_t
cherokee_config_node_mrproper (cherokee_config_node_t *conf)
{
cherokee_list_t *i, *j;
cherokee_buffer_mrproper (&conf->key);
cherokee_buffer_mrproper (&conf->val);
list_for_each_safe (i, j, &conf->child) {
cherokee_config_node_free (CONFIG_NODE(i));
}
return ret_ok;
}
static cherokee_config_node_t *
search_child (cherokee_config_node_t *current, cherokee_buffer_t *child)
{
cherokee_list_t *i;
cherokee_config_node_t *entry;
list_for_each (i, ¤t->child) {
entry = CONFIG_NODE(i);
if (strcmp (entry->key.buf, child->buf) == 0)
return entry;
}
return NULL;
}
static cherokee_config_node_t *
add_new_child (cherokee_config_node_t *entry, cherokee_buffer_t *key)
{
ret_t ret;
cherokee_config_node_t *n;
ret = cherokee_config_node_new (&n);
if (ret != ret_ok) return NULL;
cherokee_buffer_add_buffer (&n->key, key);
cherokee_list_add_tail (LIST(n), &entry->child);
return n;
}
ret_t
cherokee_config_node_add (cherokee_config_node_t *conf, const char *key, cherokee_buffer_t *val)
{
char *sep;
cherokee_config_node_t *child;
cherokee_config_node_t *current = conf;
const char *begin = key;
cherokee_buffer_t tmp = CHEROKEE_BUF_INIT;
cherokee_boolean_t final = false;
/* 'include' is a special case
*/
if (equal_str (key, "include")) {
return cherokee_config_reader_parse (conf, val);
} else if (equal_str (key, "try_include")) {
cherokee_config_reader_parse (conf, val);
}
do {
/* Extract current child
*/
sep = strchr (begin, '!');
if (sep != NULL) {
cherokee_buffer_add (&tmp, begin, sep - begin);
} else {
cherokee_buffer_add (&tmp, begin, strlen(begin));
final = true;
}
/* Look for the child entry
*/
child = search_child (current, &tmp);
if (child == NULL) {
child = add_new_child (current, &tmp);
if (child == NULL) return ret_error;
}
if (final) {
cherokee_buffer_clean (&child->val);
cherokee_buffer_add_buffer (&child->val, val);
}
/* Prepare for next step
*/
begin = sep + 1;
current = child;
cherokee_buffer_clean (&tmp);
} while (! final);
cherokee_buffer_mrproper (&tmp);
return ret_ok;
}
ret_t
cherokee_config_node_add_buf (cherokee_config_node_t *conf, cherokee_buffer_t *key, cherokee_buffer_t *val)
{
return cherokee_config_node_add (conf, key->buf, val);
}
ret_t
cherokee_config_node_get (cherokee_config_node_t *conf, const char *key, cherokee_config_node_t **entry)
{
char *sep;
cherokee_config_node_t *child;
cherokee_config_node_t *current = conf;
const char *begin = key;
cherokee_buffer_t tmp = CHEROKEE_BUF_INIT;
cherokee_boolean_t final = false;
do {
/* Extract current child
*/
sep = strchr (begin, '!');
if (sep != NULL) {
cherokee_buffer_add (&tmp, begin, sep - begin);
} else {
cherokee_buffer_add (&tmp, begin, strlen(begin));
final = true;
}
/* Look for the child entry
*/
child = search_child (current, &tmp);
if (child == NULL) {
cherokee_buffer_mrproper (&tmp);
return ret_not_found;
}
if (final) {
*entry = child;
}
/* Prepare for next step
*/
begin = sep + 1;
current = child;
cherokee_buffer_clean (&tmp);
} while (! final);
cherokee_buffer_mrproper (&tmp);
return ret_ok;
}
ret_t
cherokee_config_node_get_buf (cherokee_config_node_t *conf, cherokee_buffer_t *key, cherokee_config_node_t **entry)
{
return cherokee_config_node_get (conf, key->buf, entry);
}
ret_t
cherokee_config_node_while (cherokee_config_node_t *conf, cherokee_config_node_while_func_t func, void *data)
{
ret_t ret;
cherokee_list_t *i;
cherokee_config_node_foreach (i, conf) {
ret = func (CONFIG_NODE(i), data);
if (ret != ret_ok) return ret;
}
return ret_ok;
}
ret_t
cherokee_config_node_read (cherokee_config_node_t *conf, const char *key, cherokee_buffer_t **buf)
{
ret_t ret;
cherokee_config_node_t *tmp;
ret = cherokee_config_node_get (conf, key, &tmp);
if (ret != ret_ok) return ret;
*buf = &tmp->val;
return ret_ok;
}
ret_t
cherokee_config_node_copy (cherokee_config_node_t *conf, const char *key, cherokee_buffer_t *buf)
{
ret_t ret;
cherokee_buffer_t *tmp = NULL;
ret = cherokee_config_node_read (conf, key, &tmp);
if (ret != ret_ok) return ret;
return cherokee_buffer_add_buffer (buf, tmp);
}
ret_t
cherokee_config_node_read_int (cherokee_config_node_t *conf, const char *key, int *num)
{
ret_t ret;
cherokee_config_node_t *tmp;
ret = cherokee_config_node_get (conf, key, &tmp);
if (ret != ret_ok) return ret;
if (cherokee_buffer_is_empty (&tmp->val)) {
return ret_not_found;
}
ret = cherokee_atoi (tmp->val.buf, num);
if (unlikely (ret != ret_ok))
return ret_error;
return ret_ok;
}
ret_t
cherokee_config_node_read_uint (cherokee_config_node_t *conf, const char *key, cuint_t *num)
{
ret_t ret;
cherokee_config_node_t *tmp;
ret = cherokee_config_node_get (conf, key, &tmp);
if (ret != ret_ok) return ret;
if (cherokee_buffer_is_empty (&tmp->val)) {
return ret_not_found;
}
ret = cherokee_atou (tmp->val.buf, num);
if (unlikely (ret != ret_ok))
return ret_error;
return ret_ok;
}
ret_t
cherokee_config_node_read_long (cherokee_config_node_t *conf, const char *key, long *num)
{
ret_t ret;
cherokee_config_node_t *tmp;
ret = cherokee_config_node_get (conf, key, &tmp);
if (ret != ret_ok) return ret;
if (cherokee_buffer_is_empty (&tmp->val)) {
return ret_not_found;
}
*num = atol (tmp->val.buf);
return ret_ok;
}
ret_t
cherokee_config_node_read_bool (cherokee_config_node_t *conf, const char *key, cherokee_boolean_t *val)
{
ret_t ret;
int tmp;
ret = cherokee_config_node_read_int (conf, key, &tmp);
if (ret != ret_ok) return ret;
*val = !! tmp;
return ret_ok;
}
ret_t
cherokee_config_node_read_path (cherokee_config_node_t *conf, const char *key, cherokee_buffer_t **buf)
{
ret_t ret;
cherokee_config_node_t *tmp;
if (key != NULL) {
ret = cherokee_config_node_get (conf, key, &tmp);
if (ret != ret_ok) return ret;
} else {
tmp = conf;
}
if (cherokee_buffer_is_empty (&tmp->val)) {
return ret_not_found;
}
if (cherokee_buffer_end_char (&tmp->val) != '/')
cherokee_buffer_add_str (&tmp->val, "/");
*buf = &tmp->val;
return ret_ok;
}
ret_t
cherokee_config_node_read_list (cherokee_config_node_t *conf,
const char *key,
cherokee_config_node_list_func_t func,
void *param)
{
ret_t ret;
char *ptr;
char *stop;
cherokee_config_node_t *tmp;
if (key != NULL) {
ret = cherokee_config_node_get (conf, key, &tmp);
if (ret != ret_ok) return ret;
} else {
tmp = conf;
}
if (cherokee_buffer_is_empty (&tmp->val)) {
return ret_not_found;
}
ptr = tmp->val.buf;
if (ptr == NULL)
return ret_not_found;
for (;;) {
while ((*ptr == ' ') && (*ptr != '\0'))
ptr++;
stop = strchr (ptr, ',');
if (stop != NULL) *stop = '\0';
ret = func (ptr, param);
if (ret != ret_ok) return ret;
if (stop == NULL)
break;
*stop = ',';
ptr = stop + 1;
}
return ret_ok;
}
static ret_t
convert_to_list_step (char *entry, void *data)
{
CHEROKEE_NEW(buf, buffer);
cherokee_buffer_add (buf, entry, strlen(entry));
return cherokee_list_add_tail_content (LIST(data), buf);
}
ret_t
cherokee_config_node_convert_list (cherokee_config_node_t *conf, const char *key, cherokee_list_t *list)
{
return cherokee_config_node_read_list (conf, key, convert_to_list_step, list);
}