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/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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
* any later version.
*
* The Mana World 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 The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "buddylist.h"
#include "../main.h"
#include <iostream>
#include <fstream>
BuddyList::BuddyList()
{
// Find saved buddy list file
filename = new std::string(std::string(homeDir) + "buddy.xml");
// Create buddy file
buddyXmlwriterMemory();
// Load buddy from file
streamFile();
}
BuddyList::~BuddyList()
{
int rc;
std::ofstream outputStream(filename->c_str(), std::ios::trunc);
if( !outputStream ) {
std::cerr << "Error opening output stream" << std::endl;
return;
}
/* Close last element. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
std::cerr << "buddyXmlwriterFilename: Error at xmlTextWriterEndElement" << std::endl;
return;
}
xmlFreeTextWriter(writer);
xmlCleanupParser();
/* Write and close file */
outputStream << (const char*)buf->content;
outputStream.close();
xmlBufferFree(buf);
delete filename;
}
void BuddyList::streamFile(void) {
int ret;
reader = xmlReaderForFile(filename->c_str(), NULL, 0);
if (reader != NULL) {
ret = xmlTextReaderRead(reader);
while (ret == 1) {
processNode();
ret = xmlTextReaderRead(reader);
}
xmlFreeTextReader(reader);
if (ret != 0) {
std::cerr << filename << " : failed to parse" << std::endl;
}
} else {
std::cerr << "Unable to open " << filename << std::endl;
}
}
void BuddyList::processNode(void) {
const xmlChar *name, *value;
name = xmlTextReaderConstName(reader);
if (name == NULL)
name = BAD_CAST "--";
value = xmlTextReaderConstValue(reader);
if(!xmlTextReaderIsEmptyElement(reader) && xmlTextReaderHasValue(reader))
addBuddy((char *)value);
}
void BuddyList::buddyXmlwriterMemory(void)
{
int rc;
/* Create a new XML buffer, to which the XML document will be
* written */
buf = xmlBufferCreate();
if (buf == NULL) {
std::cerr << "buddyXmlwriterMemory: Error creating the xml buffer" << std::endl;
return;
}
// Create a new XmlWriter for uri, with no compression
writer = xmlNewTextWriterMemory(buf, 0);
if (writer == NULL) {
std::cerr << "buddyXmlwriterMemory: Error creating the xml writer" << std::endl;
return;
}
// Start with the xml default version and UTF-8 encoding
rc = xmlTextWriterStartDocument(writer, NULL, "UTF-8", NULL);
if (rc < 0) {
std::cerr << "buddyXmlwriterFilename: Error at xmlTextWriterStartDocument" << std::endl;
return;
}
// Start with the root named "LIST"
rc = xmlTextWriterStartElement(writer, BAD_CAST "LIST");
if (rc < 0) {
std::cerr << "buddyXmlwriterFilename: Error at xmlTextWriterStartElement" << std::endl;
return;
}
}
bool BuddyList::addBuddy(const std::string buddy)
{
int rc;
for (buddyit = buddylist.begin(); buddyit != buddylist.end(); buddyit++)
{
// Buddy already exist
if (*buddyit == buddy) return false;
}
// Buddy doesnt exist, add it
buddylist.push_back(buddy);
// Store buddy in "PEOPLE"
rc = xmlTextWriterWriteElement(writer, BAD_CAST "PEOPLE", (xmlChar *) buddy.c_str());
if (rc < 0) {
std::cerr << "buddyXmlwriterFilename: Error at xmlTextWriterWriteElement" << std::endl;
return false;
}
return true;
}
bool BuddyList::removeBuddy(const std::string buddy)
{
if (buddylist.size() > 0) {
for (buddyit = buddylist.begin(); buddyit != buddylist.end(); buddyit++)
{
// Buddy exist, remove it
if (*buddyit == buddy) {
buddylist.remove(buddy);
return true;
}
}
}
// TODO: Remove from buddy.xml
// Buddy doesnt exist
return false;
}
int BuddyList::getNumberOfElements(void)
{
return buddylist.size();
}
std::string BuddyList::getElementAt(int number)
{
if (number <= (int) buddylist.size() - 1)
{
buddyit = buddylist.begin();
std::advance(buddyit, number);
return *buddyit;
}
return "";
}
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