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/*
 * Copyright 2006 Richard Wilson <info@tinct.net>
 * Copyright 2008 Chris Young <chris@unsatisfactorysoftware.co.uk>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * NetSurf 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, see <http://www.gnu.org/licenses/>.
 */

/** \file
 * Cookies (implementation).
 */

#include <string.h>
#include "content/urldb.h"
#include "desktop/cookies.h"
#include "desktop/tree.h"
#include "utils/messages.h"
#include "utils/log.h"
#include "amiga/cookies.h"
#include <proto/exec.h>
#include <assert.h>
#include "utils/utils.h"

static bool cookies_init;

struct node *ami_cookies_find(const char *url);

/**
 * Initialise cookies tree
 */
void ami_cookies_initialise(void)
{
	if(cookies_tree) return;

	/* Create an empty tree */
	cookies_tree = AllocVec(sizeof(struct tree),MEMF_CLEAR | MEMF_PRIVATE);
	if (!cookies_tree) {
		warn_user("NoMemory", 0);
		return;
	}
	cookies_tree->root = tree_create_folder_node(NULL, "Root");
	if (!cookies_tree->root) {
		warn_user("NoMemory", 0);
		FreeVec(cookies_tree);
		cookies_tree = NULL;
	}
	cookies_tree->root->expanded = true;
	cookies_tree->movable = false;
	cookies_tree->no_drag = true;

	cookies_init = true;
	urldb_iterate_cookies(cookies_update);
	cookies_init = false;
	tree_initialise(cookies_tree);
}

/**
 * Perform cookie addition
 *
 * \param data Cookie data for a domain, or NULL
 * \return true (for urldb_iterate_entries)
 */
bool cookies_update(const char *domain, const struct cookie_data *data)
{
	struct node *parent;
	struct node *node = NULL;
	struct node *child;
	struct node *add;
	const struct cookie_data *cookie = NULL;
	bool expanded;

	assert(domain);

	/* check if we're a domain, and add get the first cookie */
	if (data)
		for (cookie = data; cookie->prev; cookie = cookie->prev);

	if (!cookies_init) {
		node = ami_cookies_find(domain);
		if (node) {
			/* mark as deleted so we don't remove the cookies */
			expanded = node->expanded;
			for (child = node->child; child; child = child->next)
				child->deleted = true;
			if (node->child)
				tree_delete_node(cookies_tree, node->child,
						true);
			/* deleting will have contracted our node */
			node->expanded = expanded;
		}
		if (!data) {
			if (!node)
				return true;
			tree_delete_node(cookies_tree, node, false);
			tree_handle_node_changed(cookies_tree,
					cookies_tree->root, true, false);
			return true;
		}
	}

	if (!node) {
		for (parent = cookies_tree->root->child; parent;
				parent = parent->next) {
			if (strcmp(domain, parent->data.text) == 0)
				break;
		}
		if (!parent) {
			node = tree_create_folder_node(cookies_tree->root,
					domain);
		} else {
			node = parent;
		}
	}
	if (!node)
		return true;
	node->editable = false;

	for (; cookie; cookie = cookie->next) {
		add = tree_create_cookie_node(node, cookie);
		if (add && !cookies_init)
			tree_handle_node_changed(cookies_tree, add,
					true, false);
	}
	if (!cookies_init) {
		tree_handle_node_changed(cookies_tree, node,
				true, false);
/*
		tree_redraw_area(cookies_tree,
				node->box.x - NODE_INSTEP,
				0, NODE_INSTEP, 16384);
*/
	}
	return true;
}

/**
 * Find an entry in the cookie tree
 *
 * \param url The URL to find
 * \return Pointer to node, or NULL if not found
 */
struct node *ami_cookies_find(const char *url)
{
	struct node *node;

	for (node = cookies_tree->root->child; node; node = node->next) {
		if (!strcmp(url, node->data.text))
			return node;
	}
	return NULL;
}

void ami_cookies_free()
{
	FreeVec(cookies_tree);
}