/
header_op.c
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/
header_op.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) 2001-2011 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 "header_op.h"
#include "util.h"
ret_t
cherokee_header_op_new (cherokee_header_op_t **op)
{
CHEROKEE_NEW_STRUCT (n, header_op);
INIT_LIST_HEAD (&n->entry);
cherokee_buffer_init (&n->header);
cherokee_buffer_init (&n->value);
*op = n;
return ret_ok;
}
ret_t
cherokee_header_op_free (cherokee_header_op_t *op)
{
if (unlikely (op == NULL)) {
return ret_ok;
}
cherokee_buffer_mrproper (&op->header);
cherokee_buffer_mrproper (&op->value);
free (op);
return ret_ok;
}
ret_t
cherokee_header_op_configure (cherokee_header_op_t *op,
cherokee_config_node_t *conf)
{
ret_t ret;
cherokee_buffer_t *tmp;
/* Operation type
*/
ret = cherokee_config_node_read (conf, "type", &tmp);
if (ret != ret_ok) {
free (op);
return ret_error;
}
if (cherokee_buffer_case_cmp_str (tmp, "add") == 0) {
op->op = cherokee_header_op_add;
} else if (cherokee_buffer_case_cmp_str (tmp, "del") == 0) {
op->op = cherokee_header_op_del;
} else {
free (op);
return ret_error;
}
/* Details
*/
ret = cherokee_config_node_copy (conf, "header", &op->header);
if (ret != ret_ok) {
free (op);
return ret_error;
}
if (op->op == cherokee_header_op_add) {
ret = cherokee_config_node_copy (conf, "value", &op->value);
if (ret != ret_ok) {
cherokee_buffer_mrproper (&op->header);
free (op);
return ret_error;
}
}
return ret_ok;
}
static ret_t
remove_header (cherokee_buffer_t *buffer,
cherokee_buffer_t *header)
{
char *p, *s;
p = strncasestrn (buffer->buf, buffer->len,
header->buf, header->len);
if (p == NULL)
return ret_not_found;
if (p[header->len] != ':')
return ret_not_found;
s = strchr (p, '\r');
if (s == NULL)
return ret_eof;
cherokee_buffer_remove_chunk (buffer, p - buffer->buf, s-p +2);
return ret_ok;
}
ret_t
cherokee_header_op_render (cherokee_list_t *ops_list,
cherokee_buffer_t *buffer)
{
cherokee_list_t *i;
cherokee_header_op_t *op;
list_for_each (i, ops_list){
op = HEADER_OP(i);
if (op->op == cherokee_header_op_add) {
/* Check whether there is a previous
* header. If so, get rid of it.
*/
remove_header (buffer, &op->header);
/* Add the new entry
*/
cherokee_buffer_add_buffer (buffer, &op->header);
cherokee_buffer_add_str (buffer, ": ");
cherokee_buffer_add_buffer (buffer, &op->value);
cherokee_buffer_add_str (buffer, CRLF);
} else if (op->op == cherokee_header_op_del) {
remove_header (buffer, &op->header);
}
}
return ret_ok;
}