/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2004 Ximian, Inc. (www.ximian.com)
*
* This program 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 59 Temple Street #330, Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/xmlmemory.h>
#include <gconf/gconf-client.h>
#include "e-uid.h"
#include "e-signature.h"
static void e_signature_class_init (ESignatureClass *klass);
static void e_signature_init (ESignature *sig, ESignatureClass *klass);
static void e_signature_finalize (GObject *object);
static GObjectClass *parent_class = NULL;
GType
e_signature_get_type (void)
{
static GType type = 0;
if (!type) {
GTypeInfo type_info = {
sizeof (ESignatureClass),
NULL, NULL,
(GClassInitFunc) e_signature_class_init,
NULL, NULL,
sizeof (ESignature),
0,
(GInstanceInitFunc) e_signature_init,
};
type = g_type_register_static (G_TYPE_OBJECT, "ESignature", &type_info, 0);
}
return type;
}
static void
e_signature_class_init (ESignatureClass *klass)
{
GObjectClass *object_class = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
/* virtual method override */
object_class->finalize = e_signature_finalize;
}
static void
e_signature_init (ESignature *sig, ESignatureClass *klass)
{
;
}
static void
e_signature_finalize (GObject *object)
{
ESignature *sig = (ESignature *) object;
g_free (sig->uid);
g_free (sig->name);
g_free (sig->filename);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* e_signature_new:
*
* Returns a new signature which can be filled in and
* added to an #ESignatureList.
**/
ESignature *
e_signature_new (void)
{
ESignature *signature;
signature = g_object_new (E_TYPE_SIGNATURE, NULL);
signature->uid = e_uid_new ();
return signature;
}
/**
* e_signature_new_from_xml:
* @xml: an XML signature description
*
* Return value: a new #ESignature based on the data in @xml, or %NULL
* if @xml could not be parsed as valid signature data.
**/
ESignature *
e_signature_new_from_xml (const char *xml)
{
ESignature *signature;
signature = g_object_new (E_TYPE_SIGNATURE, NULL);
if (!e_signature_set_from_xml (signature, xml)) {
g_object_unref (signature);
return NULL;
}
return signature;
}
static gboolean
xml_set_bool (xmlNodePtr node, const char *name, gboolean *val)
{
gboolean bool;
char *buf;
if ((buf = xmlGetProp (node, name))) {
bool = (!strcmp (buf, "true") || !strcmp (buf, "yes"));
xmlFree (buf);
if (bool != *val) {
*val = bool;
return TRUE;
}
}
return FALSE;
}
static gboolean
xml_set_prop (xmlNodePtr node, const char *name, char **val)
{
char *buf, *new_val;
buf = xmlGetProp (node, name);
new_val = g_strdup (buf);
xmlFree (buf);
/* We can use strcmp here whether the value is UTF8 or
* not, since we only care if the bytes changed.
*/
if (!*val || strcmp (*val, new_val)) {
g_free (*val);
*val = new_val;
return TRUE;
} else {
g_free (new_val);
return FALSE;
}
}
static gboolean
xml_set_content (xmlNodePtr node, char **val)
{
char *buf, *new_val;
buf = xmlNodeGetContent (node);
new_val = g_strdup (buf);
xmlFree (buf);
/* We can use strcmp here whether the value is UTF8 or
* not, since we only care if the bytes changed.
*/
if (!*val || strcmp (*val, new_val)) {
g_free (*val);
*val = new_val;
return TRUE;
} else {
g_free (new_val);
return FALSE;
}
}
/**
* e_signature_uid_from_xml:
* @xml: an XML signature description
*
* Return value: the permanent UID of the signature described by @xml
* (or %NULL if @xml could not be parsed or did not contain a uid).
* The caller must free this string.
**/
char *
e_signature_uid_from_xml (const char *xml)
{
xmlNodePtr node;
xmlDocPtr doc;
char *uid = NULL;
if (!(doc = xmlParseDoc ((char *) xml)))
return NULL;
node = doc->children;
if (strcmp (node->name, "signature") != 0) {
xmlFreeDoc (doc);
return NULL;
}
xml_set_prop (node, "uid", &uid);
xmlFreeDoc (doc);
return uid;
}
/**
* e_signature_set_from_xml:
* @signature: an #ESignature
* @xml: an XML signature description.
*
* Changes @signature to match @xml.
*
* Returns %TRUE if the signature was loaded or %FALSE otherwise.
**/
gboolean
e_signature_set_from_xml (ESignature *signature, const char *xml)
{
gboolean changed = FALSE;
xmlNodePtr node, cur;
xmlDocPtr doc;
gboolean bool;
char *buf;
if (!(doc = xmlParseDoc ((char *) xml)))
return FALSE;
node = doc->children;
if (strcmp (node->name, "signature") != 0) {
xmlFreeDoc (doc);
return FALSE;
}
if (!signature->uid)
xml_set_prop (node, "uid", &signature->uid);
changed |= xml_set_prop (node, "name", &signature->name);
changed |= xml_set_bool (node, "auto", &signature->autogen);
if (signature->autogen) {
/* we're done */
g_free (signature->filename);
signature->filename = NULL;
signature->script = FALSE;
signature->html = FALSE;
xmlFreeDoc (doc);
return changed;
}
buf = NULL;
xml_set_prop (node, "format", &buf);
if (buf && !strcmp (buf, "text/html"))
bool = TRUE;
else
bool = FALSE;
g_free (buf);
if (signature->html != bool) {
signature->html = bool;
changed = TRUE;
}
cur = node->children;
while (cur) {
if (!strcmp (cur->name, "filename")) {
changed |= xml_set_content (cur, &signature->filename);
changed |= xml_set_bool (cur, "script", &signature->script);
break;
} else if (!strcmp (cur->name, "script")) {
/* this is for handling 1.4 signature script definitions */
changed |= xml_set_content (cur, &signature->filename);
if (!signature->script) {
signature->script = TRUE;
changed = TRUE;
}
break;
}
cur = cur->next;
}
xmlFreeDoc (doc);
return changed;
}
/**
* e_signature_to_xml:
* @signature: an #ESignature
*
* Return value: an XML representation of @signature, which the caller
* must free.
**/
char *
e_signature_to_xml (ESignature *signature)
{
char *xmlbuf, *tmp;
xmlNodePtr root, node;
xmlDocPtr doc;
int n;
doc = xmlNewDoc ("1.0");
root = xmlNewDocNode (doc, NULL, "signature", NULL);
xmlDocSetRootElement (doc, root);
xmlSetProp (root, "name", signature->name);
xmlSetProp (root, "uid", signature->uid);
xmlSetProp (root, "auto", signature->autogen ? "true" : "false");
if (!signature->autogen) {
xmlSetProp (root, "format", signature->html ? "text/html" : "text/plain");
if (signature->filename) {
node = xmlNewTextChild (root, NULL, "filename", signature->filename);
if (signature->script)
xmlSetProp (node, "script", "true");
}
} else {
/* this is to make Evolution-1.4 and older 1.5 versions happy */
xmlSetProp (root, "format", "text/html");
}
xmlDocDumpMemory (doc, (xmlChar **) &xmlbuf, &n);
xmlFreeDoc (doc);
/* remap to glib memory */
tmp = g_malloc (n + 1);
memcpy (tmp, xmlbuf, n);
tmp[n] = '\0';
xmlFree (xmlbuf);
return tmp;
}
