mirror of https://github.com/kiwix/libkiwix.git
735 lines
21 KiB
C++
735 lines
21 KiB
C++
/*
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* Copyright 2011 Emmanuel Engelhart <kelson@kiwix.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include "manager.h"
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#include "downloader.h"
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namespace kiwix
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{
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/* Constructor */
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Manager::Manager() : writableLibraryPath("")
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{
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}
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/* Destructor */
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Manager::~Manager()
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{
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}
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bool Manager::parseXmlDom(const pugi::xml_document& doc,
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const bool readOnly,
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const string libraryPath)
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{
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pugi::xml_node libraryNode = doc.child("library");
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if (strlen(libraryNode.attribute("current").value()))
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this->setCurrentBookId(libraryNode.attribute("current").value());
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string libraryVersion = libraryNode.attribute("version").value();
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for (pugi::xml_node bookNode = libraryNode.child("book"); bookNode;
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bookNode = bookNode.next_sibling("book")) {
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bool ok = true;
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kiwix::Book book;
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book.readOnly = readOnly;
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book.id = bookNode.attribute("id").value();
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book.path = bookNode.attribute("path").value();
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book.last = (std::string(bookNode.attribute("last").value()) != "undefined"
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? bookNode.attribute("last").value()
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: "");
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book.indexPath = bookNode.attribute("indexPath").value();
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book.indexType = XAPIAN;
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book.title = bookNode.attribute("title").value();
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book.name = bookNode.attribute("name").value();
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book.tags = bookNode.attribute("tags").value();
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book.description = bookNode.attribute("description").value();
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book.language = bookNode.attribute("language").value();
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book.date = bookNode.attribute("date").value();
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book.creator = bookNode.attribute("creator").value();
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book.publisher = bookNode.attribute("publisher").value();
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book.url = bookNode.attribute("url").value();
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book.origId = bookNode.attribute("origId").value();
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book.articleCount = bookNode.attribute("articleCount").value();
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book.mediaCount = bookNode.attribute("mediaCount").value();
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book.size = bookNode.attribute("size").value();
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book.favicon = bookNode.attribute("favicon").value();
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book.faviconMimeType = bookNode.attribute("faviconMimeType").value();
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/* Check absolute and relative paths */
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this->checkAndCleanBookPaths(book, libraryPath);
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/* Update the book properties with the new importer */
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if (libraryVersion.empty()
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|| atoi(libraryVersion.c_str()) <= atoi(KIWIX_LIBRARY_VERSION)) {
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if (!book.path.empty()) {
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ok = this->readBookFromPath(book.pathAbsolute);
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}
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}
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if (ok) {
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library.addBook(book);
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}
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}
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return true;
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}
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bool Manager::readXml(const string& xml,
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const bool readOnly,
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const string libraryPath)
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{
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pugi::xml_document doc;
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pugi::xml_parse_result result
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= doc.load_buffer_inplace((void*)xml.data(), xml.size());
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if (result) {
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this->parseXmlDom(doc, readOnly, libraryPath);
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}
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return true;
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}
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bool Manager::parseOpdsDom(const pugi::xml_document& doc, const std::string& urlHost)
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{
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pugi::xml_node libraryNode = doc.child("feed");
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for (pugi::xml_node entryNode = libraryNode.child("entry"); entryNode;
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entryNode = entryNode.next_sibling("entry")) {
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kiwix::Book book;
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book.readOnly = false;
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book.id = entryNode.child("id").child_value();
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book.title = entryNode.child("title").child_value();
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book.description = entryNode.child("summary").child_value();
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book.language = entryNode.child("language").child_value();
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book.date = entryNode.child("updated").child_value();
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book.creator = entryNode.child("author").child("name").child_value();
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for(pugi::xml_node linkNode = entryNode.child("link"); linkNode;
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linkNode = linkNode.next_sibling("link")) {
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std::string rel = linkNode.attribute("rel").value();
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if (rel == "http://opds-spec.org/image/thumbnail") {
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auto faviconUrl = urlHost + linkNode.attribute("href").value();
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auto downloader = Downloader();
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auto fileHandle = downloader.download(faviconUrl);
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if (fileHandle.success) {
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auto content = getFileContent(fileHandle.path);
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book.favicon = base64_encode((const unsigned char*)content.data(), content.size());
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book.faviconMimeType = linkNode.attribute("type").value();
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} else {
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std::cerr << "Cannot get favicon content from " << faviconUrl << std::endl;
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}
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} else if (rel == "http://opds-spec.org/acquisition/open-access") {
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book.url = linkNode.attribute("href").value();
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}
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}
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/* Update the book properties with the new importer */
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library.addBook(book);
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}
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return true;
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}
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bool Manager::readOpds(const string& content, const std::string& urlHost)
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{
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pugi::xml_document doc;
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pugi::xml_parse_result result
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= doc.load_buffer_inplace((void*)content.data(), content.size());
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if (result) {
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this->parseOpdsDom(doc, urlHost);
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return true;
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}
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return false;
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}
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bool Manager::readFile(const string path, const bool readOnly)
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{
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return this->readFile(path, path, readOnly);
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}
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bool Manager::readFile(const string nativePath,
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const string UTF8Path,
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const bool readOnly)
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{
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bool retVal = true;
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pugi::xml_document doc;
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pugi::xml_parse_result result = doc.load_file(nativePath.c_str());
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if (result) {
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this->parseXmlDom(doc, readOnly, UTF8Path);
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} else {
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retVal = false;
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}
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/* This has to be set (although if the file does not exists) to be
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* able to know where to save the library if new content are
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* available */
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if (!readOnly) {
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this->writableLibraryPath = UTF8Path;
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}
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return retVal;
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}
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bool Manager::writeFile(const string path)
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{
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pugi::xml_document doc;
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/* Add the library node */
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pugi::xml_node libraryNode = doc.append_child("library");
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if (!getCurrentBookId().empty()) {
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libraryNode.append_attribute("current") = getCurrentBookId().c_str();
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}
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if (!library.version.empty())
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libraryNode.append_attribute("version") = library.version.c_str();
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/* Add each book */
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std::vector<kiwix::Book>::iterator itr;
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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if (!itr->readOnly) {
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this->checkAndCleanBookPaths(*itr, path);
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pugi::xml_node bookNode = libraryNode.append_child("book");
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bookNode.append_attribute("id") = itr->id.c_str();
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if (!itr->path.empty()) {
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bookNode.append_attribute("path") = itr->path.c_str();
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}
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if (!itr->last.empty() && itr->last != "undefined") {
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bookNode.append_attribute("last") = itr->last.c_str();
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}
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if (!itr->indexPath.empty())
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bookNode.append_attribute("indexPath") = itr->indexPath.c_str();
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if (!itr->indexPath.empty() || !itr->indexPathAbsolute.empty()) {
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if (itr->indexType == XAPIAN) {
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bookNode.append_attribute("indexType") = "xapian";
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}
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}
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if (itr->origId.empty()) {
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if (!itr->title.empty())
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bookNode.append_attribute("title") = itr->title.c_str();
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if (!itr->name.empty())
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bookNode.append_attribute("name") = itr->name.c_str();
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if (!itr->tags.empty())
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bookNode.append_attribute("tags") = itr->tags.c_str();
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if (!itr->description.empty())
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bookNode.append_attribute("description") = itr->description.c_str();
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if (!itr->language.empty())
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bookNode.append_attribute("language") = itr->language.c_str();
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if (!itr->creator.empty())
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bookNode.append_attribute("creator") = itr->creator.c_str();
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if (!itr->publisher.empty())
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bookNode.append_attribute("publisher") = itr->publisher.c_str();
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if (!itr->favicon.empty())
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bookNode.append_attribute("favicon") = itr->favicon.c_str();
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if (!itr->faviconMimeType.empty())
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bookNode.append_attribute("faviconMimeType")
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= itr->faviconMimeType.c_str();
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}
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if (!itr->date.empty()) {
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bookNode.append_attribute("date") = itr->date.c_str();
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}
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if (!itr->url.empty()) {
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bookNode.append_attribute("url") = itr->url.c_str();
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}
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if (!itr->origId.empty())
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bookNode.append_attribute("origId") = itr->origId.c_str();
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if (!itr->articleCount.empty())
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bookNode.append_attribute("articleCount") = itr->articleCount.c_str();
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if (!itr->mediaCount.empty())
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bookNode.append_attribute("mediaCount") = itr->mediaCount.c_str();
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if (!itr->size.empty()) {
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bookNode.append_attribute("size") = itr->size.c_str();
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}
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}
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}
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/* saving file */
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doc.save_file(path.c_str());
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return true;
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}
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bool Manager::setCurrentBookId(const string id)
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{
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if (library.current.empty() || library.current.top() != id) {
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if (id.empty() && !library.current.empty()) {
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library.current.pop();
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} else {
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library.current.push(id);
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}
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}
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return true;
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}
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string Manager::getCurrentBookId() const
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{
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return library.current.empty() ? "" : library.current.top();
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}
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/* Add a book to the library. Return empty string if failed, book id otherwise
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*/
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string Manager::addBookFromPathAndGetId(const string pathToOpen,
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const string pathToSave,
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const string url,
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const bool checkMetaData)
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{
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kiwix::Book book;
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if (this->readBookFromPath(pathToOpen, &book)) {
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if (pathToSave != pathToOpen) {
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book.path = pathToSave;
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book.pathAbsolute
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= isRelativePath(pathToSave)
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? computeAbsolutePath(
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removeLastPathElement(writableLibraryPath, true, false),
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pathToSave)
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: pathToSave;
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}
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if (!checkMetaData
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|| (checkMetaData && !book.title.empty() && !book.language.empty()
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&& !book.date.empty())) {
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book.url = url;
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library.addBook(book);
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return book.id;
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}
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}
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return "";
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}
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/* Wrapper over Manager::addBookFromPath which return a bool instead of a string
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*/
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bool Manager::addBookFromPath(const string pathToOpen,
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const string pathToSave,
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const string url,
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const bool checkMetaData)
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{
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return !(
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this->addBookFromPathAndGetId(pathToOpen, pathToSave, url, checkMetaData)
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.empty());
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}
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bool Manager::readBookFromPath(const string path, kiwix::Book* book)
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{
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try {
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kiwix::Reader* reader = new kiwix::Reader(path);
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if (book != NULL) {
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book->path = path;
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book->pathAbsolute = path;
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book->id = reader->getId();
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book->description = reader->getDescription();
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book->language = reader->getLanguage();
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book->date = reader->getDate();
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book->creator = reader->getCreator();
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book->publisher = reader->getPublisher();
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book->title = reader->getTitle();
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book->name = reader->getName();
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book->tags = reader->getTags();
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book->origId = reader->getOrigId();
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std::ostringstream articleCountStream;
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articleCountStream << reader->getArticleCount();
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book->articleCount = articleCountStream.str();
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std::ostringstream mediaCountStream;
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mediaCountStream << reader->getMediaCount();
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book->mediaCount = mediaCountStream.str();
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ostringstream convert;
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convert << reader->getFileSize();
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book->size = convert.str();
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string favicon;
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string faviconMimeType;
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if (reader->getFavicon(favicon, faviconMimeType)) {
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book->favicon = base64_encode(
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reinterpret_cast<const unsigned char*>(favicon.c_str()),
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favicon.length());
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book->faviconMimeType = faviconMimeType;
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}
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}
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delete reader;
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} catch (const std::exception& e) {
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std::cerr << e.what() << std::endl;
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return false;
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}
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return true;
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}
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bool Manager::removeBookByIndex(const unsigned int bookIndex)
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{
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return this->library.removeBookByIndex(bookIndex);
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}
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bool Manager::removeBookById(const string id)
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{
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unsigned int bookIndex = 0;
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std::vector<kiwix::Book>::iterator itr;
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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if (itr->id == id) {
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return this->library.removeBookByIndex(bookIndex);
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}
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bookIndex++;
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}
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return false;
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}
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vector<string> Manager::getBooksLanguages()
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{
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std::vector<string> booksLanguages;
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std::vector<kiwix::Book>::iterator itr;
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std::map<string, bool> booksLanguagesMap;
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std::sort(
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library.books.begin(), library.books.end(), kiwix::Book::sortByLanguage);
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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if (booksLanguagesMap.find(itr->language) == booksLanguagesMap.end()) {
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if (itr->origId.empty()) {
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booksLanguagesMap[itr->language] = true;
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booksLanguages.push_back(itr->language);
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}
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}
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}
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return booksLanguages;
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}
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vector<string> Manager::getBooksCreators()
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{
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std::vector<string> booksCreators;
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std::vector<kiwix::Book>::iterator itr;
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std::map<string, bool> booksCreatorsMap;
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std::sort(
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library.books.begin(), library.books.end(), kiwix::Book::sortByCreator);
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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if (booksCreatorsMap.find(itr->creator) == booksCreatorsMap.end()) {
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if (itr->origId.empty()) {
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booksCreatorsMap[itr->creator] = true;
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booksCreators.push_back(itr->creator);
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}
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}
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}
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return booksCreators;
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}
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vector<string> Manager::getBooksIds()
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{
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std::vector<string> booksIds;
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std::vector<kiwix::Book>::iterator itr;
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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booksIds.push_back(itr->id);
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}
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return booksIds;
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}
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vector<string> Manager::getBooksPublishers()
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{
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std::vector<string> booksPublishers;
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std::vector<kiwix::Book>::iterator itr;
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std::map<string, bool> booksPublishersMap;
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std::sort(
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library.books.begin(), library.books.end(), kiwix::Book::sortByPublisher);
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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if (booksPublishersMap.find(itr->publisher) == booksPublishersMap.end()) {
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if (itr->origId.empty()) {
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booksPublishersMap[itr->publisher] = true;
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booksPublishers.push_back(itr->publisher);
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}
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}
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}
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return booksPublishers;
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}
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kiwix::Library Manager::cloneLibrary()
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{
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return this->library;
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}
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bool Manager::getCurrentBook(Book& book)
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{
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string currentBookId = getCurrentBookId();
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if (currentBookId.empty()) {
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return false;
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} else {
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getBookById(currentBookId, book);
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return true;
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}
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}
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bool Manager::getBookById(const string id, Book& book)
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{
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std::vector<kiwix::Book>::iterator itr;
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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if (itr->id == id) {
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book = *itr;
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return true;
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}
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}
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return false;
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}
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bool Manager::updateBookLastOpenDateById(const string id)
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{
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std::vector<kiwix::Book>::iterator itr;
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for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
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if (itr->id == id) {
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char unixdate[12];
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sprintf(unixdate, "%d", (int)time(NULL));
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itr->last = unixdate;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool Manager::setBookIndex(const string id,
|
|
const string path,
|
|
const supportedIndexType type)
|
|
{
|
|
std::vector<kiwix::Book>::iterator itr;
|
|
for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
|
|
if (itr->id == id) {
|
|
itr->indexPath = path;
|
|
itr->indexPathAbsolute
|
|
= isRelativePath(path)
|
|
? computeAbsolutePath(
|
|
removeLastPathElement(writableLibraryPath, true, false),
|
|
path)
|
|
: path;
|
|
itr->indexType = type;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool Manager::setBookPath(const string id, const string path)
|
|
{
|
|
std::vector<kiwix::Book>::iterator itr;
|
|
for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
|
|
if (itr->id == id) {
|
|
itr->path = path;
|
|
itr->pathAbsolute
|
|
= isRelativePath(path)
|
|
? computeAbsolutePath(
|
|
removeLastPathElement(writableLibraryPath, true, false),
|
|
path)
|
|
: path;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void Manager::removeBookPaths()
|
|
{
|
|
std::vector<kiwix::Book>::iterator itr;
|
|
for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
|
|
itr->path = "";
|
|
itr->pathAbsolute = "";
|
|
}
|
|
}
|
|
|
|
unsigned int Manager::getBookCount(const bool localBooks,
|
|
const bool remoteBooks)
|
|
{
|
|
unsigned int result = 0;
|
|
std::vector<kiwix::Book>::iterator itr;
|
|
for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
|
|
if ((!itr->path.empty() && localBooks)
|
|
|| (itr->path.empty() && remoteBooks)) {
|
|
result++;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool Manager::listBooks(const supportedListMode mode,
|
|
const supportedListSortBy sortBy,
|
|
const unsigned int maxSize,
|
|
const string language,
|
|
const string creator,
|
|
const string publisher,
|
|
const string search)
|
|
{
|
|
this->bookIdList.clear();
|
|
std::vector<kiwix::Book>::iterator itr;
|
|
|
|
/* Sort */
|
|
if (sortBy == TITLE) {
|
|
std::sort(
|
|
library.books.begin(), library.books.end(), kiwix::Book::sortByTitle);
|
|
} else if (sortBy == SIZE) {
|
|
std::sort(
|
|
library.books.begin(), library.books.end(), kiwix::Book::sortBySize);
|
|
} else if (sortBy == DATE) {
|
|
std::sort(
|
|
library.books.begin(), library.books.end(), kiwix::Book::sortByDate);
|
|
} else if (sortBy == CREATOR) {
|
|
std::sort(
|
|
library.books.begin(), library.books.end(), kiwix::Book::sortByCreator);
|
|
} else if (sortBy == PUBLISHER) {
|
|
std::sort(library.books.begin(),
|
|
library.books.end(),
|
|
kiwix::Book::sortByPublisher);
|
|
}
|
|
|
|
/* Special sort for LASTOPEN */
|
|
if (mode == LASTOPEN) {
|
|
std::sort(library.books.begin(),
|
|
library.books.end(),
|
|
kiwix::Book::sortByLastOpen);
|
|
for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
|
|
if (!itr->last.empty()) {
|
|
this->bookIdList.push_back(itr->id);
|
|
}
|
|
}
|
|
} else {
|
|
/* Generate the list of book id */
|
|
for (itr = library.books.begin(); itr != library.books.end(); ++itr) {
|
|
bool ok = true;
|
|
|
|
if (mode == LOCAL && itr->path.empty()) {
|
|
ok = false;
|
|
}
|
|
|
|
if (ok == true && mode == REMOTE
|
|
&& (!itr->path.empty() || itr->url.empty())) {
|
|
ok = false;
|
|
}
|
|
|
|
if (ok == true && maxSize != 0
|
|
&& (unsigned int)atoi(itr->size.c_str()) > maxSize * 1024 * 1024) {
|
|
ok = false;
|
|
}
|
|
|
|
if (ok == true && !language.empty()
|
|
&& !matchRegex(itr->language, language)) {
|
|
ok = false;
|
|
}
|
|
|
|
if (ok == true && !creator.empty() && itr->creator != creator) {
|
|
ok = false;
|
|
}
|
|
|
|
if (ok == true && !publisher.empty() && itr->publisher != publisher) {
|
|
ok = false;
|
|
}
|
|
|
|
if ((ok == true && !search.empty())
|
|
&& !(matchRegex(itr->title, "\\Q" + search + "\\E")
|
|
|| matchRegex(itr->description, "\\Q" + search + "\\E")
|
|
|| matchRegex(itr->language, "\\Q" + search + "\\E"))) {
|
|
ok = false;
|
|
}
|
|
|
|
if (ok == true) {
|
|
this->bookIdList.push_back(itr->id);
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
Library Manager::filter(const std::string& search) {
|
|
Library library;
|
|
|
|
if (search.empty()) {
|
|
return library;
|
|
}
|
|
|
|
for(auto book:this->library.books) {
|
|
if (matchRegex(book.title, "\\Q" + search + "\\E")
|
|
|| matchRegex(book.description, "\\Q" + search + "\\E")) {
|
|
library.addBook(book);
|
|
}
|
|
}
|
|
|
|
return library;
|
|
}
|
|
|
|
void Manager::checkAndCleanBookPaths(Book& book, const string& libraryPath)
|
|
{
|
|
if (!book.path.empty()) {
|
|
if (isRelativePath(book.path)) {
|
|
book.pathAbsolute = computeAbsolutePath(
|
|
removeLastPathElement(libraryPath, true, false), book.path);
|
|
} else {
|
|
book.pathAbsolute = book.path;
|
|
book.path = computeRelativePath(
|
|
removeLastPathElement(libraryPath, true, false), book.pathAbsolute);
|
|
}
|
|
}
|
|
|
|
if (!book.indexPath.empty()) {
|
|
if (isRelativePath(book.indexPath)) {
|
|
book.indexPathAbsolute = computeAbsolutePath(
|
|
removeLastPathElement(libraryPath, true, false), book.indexPath);
|
|
} else {
|
|
book.indexPathAbsolute = book.indexPath;
|
|
book.indexPath
|
|
= computeRelativePath(removeLastPathElement(libraryPath, true, false),
|
|
book.indexPathAbsolute);
|
|
}
|
|
}
|
|
}
|
|
}
|