/* * 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 #include BuddyList::BuddyList() { // Find home dir findHomeDir(); // 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::findHomeDir(void) { //TODO: Find homeDir filename = new std::string("buddy.xml"); } 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 ""; }