312 lines
11 KiB
C++
312 lines
11 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) 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, MA 02110-1301, USA.
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*
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*/
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#include "backends/networking/sdl_net/indexpagehandler.h"
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#include "backends/networking/sdl_net/localwebserver.h"
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#include "backends/saves/default/default-saves.h"
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#include "common/archive.h"
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#include "common/config-manager.h"
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#include "common/file.h"
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#include "common/savefile.h"
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#include "common/translation.h"
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#include "common/unzip.h"
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#include "gui/storagewizarddialog.h"
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namespace Networking {
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#define ARCHIVE_NAME "wwwroot.zip"
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#define INDEX_PAGE_NAME "index.html"
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#define FILES_PAGE_NAME "files.html"
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IndexPageHandler::IndexPageHandler(): CommandSender(nullptr) {}
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IndexPageHandler::~IndexPageHandler() {
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LocalServer.removePathHandler("/");
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LocalServer.removePathHandler("/files/");
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Common::ArchiveMemberList fileList = listArchive();
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for (Common::ArchiveMemberList::iterator it = fileList.begin(); it != fileList.end(); ++it) {
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Common::ArchiveMember const &m = **it;
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if (m.getName() == INDEX_PAGE_NAME) continue;
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LocalServer.removePathHandler("/" + m.getName());
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}
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}
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void IndexPageHandler::handle(Client &client) {
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Common::String response = "<html><head><title>ScummVM</title></head><body>{message}</body></html>";
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// load stylish response page from the archive
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Common::SeekableReadStream *const stream = getArchiveFile(INDEX_PAGE_NAME);
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if (stream) response = readEverythingFromStream(stream);
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Common::String code = client.queryParameter("code");
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if (code == "") {
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replace(response, "{message}", _("This is a local webserver index page."));
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LocalWebserver::setClientGetHandler(client, response);
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return;
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}
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_code = code;
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sendCommand(GUI::kStorageCodePassedCmd, 0);
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replace(response, "{message}", _("ScummVM got the code and already connects to your cloud storage!"));
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LocalWebserver::setClientGetHandler(client, response);
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}
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void IndexPageHandler::handleFiles(Client &client) {
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Common::String response = "<html><head><title>ScummVM</title></head><body><table>{content}</table></body></html>"; //TODO: add controls
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Common::String itemTemplate = "<tr><td><a href=\"{link}\">{name}</a></td><td>{size}</td></tr>\n"; //TODO: load this template too?
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// load stylish response page from the archive
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Common::SeekableReadStream *const stream = getArchiveFile(FILES_PAGE_NAME);
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if (stream) response = readEverythingFromStream(stream);
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Common::String path = client.queryParameter("path");
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Common::String content = "";
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// show an error message if failed to list directory
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if (!listDirectory(path, content, itemTemplate)) {
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handleErrorMessage(
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client,
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Common::String::format(
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"%s<br/><a href=\"files?path=/\">%s</a>",
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_("ScummVM couldn't list the directory you specified."),
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_("Back to the files manager")
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)
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);
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return;
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}
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//these occur twice:
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replace(response, "{create_directory_button}", _("Create directory"));
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replace(response, "{create_directory_button}", _("Create directory"));
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replace(response, "{upload_files_button}", _("Upload files")); //tab
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replace(response, "{upload_file_button}", _("Upload files")); //button in the tab
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replace(response, "{create_directory_desc}", _("Type new directory name:"));
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replace(response, "{upload_file_desc}", _("Select a file to upload:"));
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replace(response, "{content}", content);
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LocalWebserver::setClientGetHandler(client, response);
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}
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void IndexPageHandler::handleResource(Client &client) {
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Common::String filename = client.path();
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filename.deleteChar(0);
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LocalWebserver::setClientGetHandler(client, getArchiveFile(filename), 200, LocalWebserver::determineMimeType(filename));
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}
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void IndexPageHandler::handleErrorMessage(Client &client, Common::String message) {
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Common::String response = "<html><head><title>ScummVM</title></head><body>{message}</body></html>";
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// load stylish response page from the archive
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Common::SeekableReadStream *const stream = getArchiveFile(INDEX_PAGE_NAME);
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if (stream) response = readEverythingFromStream(stream);
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replace(response, "{message}", message);
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LocalWebserver::setClientGetHandler(client, response);
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}
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/// "files/"-related
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Common::String IndexPageHandler::parentPath(Common::String path) {
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if (path.size() && (path.lastChar() == '/' || path.lastChar() == '\\')) path.deleteLastChar();
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if (!path.empty()) {
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for (int i = path.size() - 1; i >= 0; --i)
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if (i == 0 || path[i] == '/' || path[i] == '\\') {
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path.erase(i);
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break;
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}
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}
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if (path.size() && path.lastChar() != '/' && path.lastChar() != '\\') path += '/';
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return path;
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}
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void IndexPageHandler::addItem(Common::String &content, const Common::String &itemTemplate, bool isDirectory, Common::String path, Common::String name, Common::String size) {
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Common::String item = itemTemplate;
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replace(item, "{link}", (isDirectory ? "files?path=" : "download?path=") + path);
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replace(item, "{name}", name);
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replace(item, "{size}", size);
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content += item;
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}
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bool IndexPageHandler::listDirectory(Common::String path, Common::String &content, const Common::String &itemTemplate) {
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if (path == "" || path == "/") {
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addItem(content, itemTemplate, true, "/root/", _("File system root"));
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addItem(content, itemTemplate, true, "/saves/", _("Saved games"));
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return true;
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}
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Common::String prefixToRemove = "", prefixToAdd = "";
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if (!transformPath(path, prefixToRemove, prefixToAdd)) return false;
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Common::FSNode node = Common::FSNode(path);
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if (path == "/") node = node.getParent(); // absolute root
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if (!node.isDirectory()) return false;
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// list directory
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Common::FSList _nodeContent;
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if (!node.getChildren(_nodeContent, Common::FSNode::kListAll, false)) // do not show hidden files
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_nodeContent.clear();
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else
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Common::sort(_nodeContent.begin(), _nodeContent.end());
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// add parent directory link
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{
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Common::String filePath = path;
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if (filePath.hasPrefix(prefixToRemove))
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filePath.erase(0, prefixToRemove.size());
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if (filePath == "" || filePath == "/" || filePath == "\\")
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filePath = "/";
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else
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filePath = parentPath(prefixToAdd + filePath);
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addItem(content, itemTemplate, true, filePath, _("Parent directory"));
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}
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// fill the content
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for (Common::FSList::iterator i = _nodeContent.begin(); i != _nodeContent.end(); ++i) {
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Common::String name = i->getDisplayName();
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if (i->isDirectory()) name += "/";
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Common::String filePath = i->getPath();
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if (filePath.hasPrefix(prefixToRemove))
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filePath.erase(0, prefixToRemove.size());
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filePath = prefixToAdd + filePath;
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addItem(content, itemTemplate, i->isDirectory(), filePath, name);
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}
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return true;
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}
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bool IndexPageHandler::transformPath(Common::String &path, Common::String &prefixToRemove, Common::String &prefixToAdd) {
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// <path> is not empty, but could lack the trailing slash
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if (path.lastChar() != '/' && path.lastChar() != '\\') path += '/';
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if (path.hasPrefix("/root")) {
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prefixToAdd = "/root/";
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prefixToRemove = "";
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path.erase(0, 5);
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if (path == "") path = "/"; // absolute root is '/'
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if (path != "/") path.deleteChar(0); // if that was "/root/ab/c", it becomes "/ab/c", but we need "ab/c"
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return true;
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}
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if (path.hasPrefix("/saves")) {
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prefixToAdd = "/saves/";
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// determine savepath (prefix to remove)
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DefaultSaveFileManager *manager = dynamic_cast<DefaultSaveFileManager *>(g_system->getSavefileManager());
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prefixToRemove = (manager ? manager->concatWithSavesPath("") : ConfMan.get("savepath"));
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if (prefixToRemove.size() && prefixToRemove.lastChar() != '/' && prefixToRemove.lastChar() != '\\')
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prefixToRemove += '/';
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path.erase(0, 6);
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if (path.size() && (path[0] == '/' || path[0] == '\\'))
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path.deleteChar(0);
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path = prefixToRemove + path;
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return true;
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}
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return false;
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}
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/// public
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void IndexPageHandler::addPathHandler(LocalWebserver &server) {
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// we can't use LocalServer yet, because IndexPageHandler is created while LocalWebserver is created
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// (thus no _instance is available and it causes stack overflow)
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server.addPathHandler("/", new Common::Callback<IndexPageHandler, Client &>(this, &IndexPageHandler::handle));
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server.addPathHandler("/files", new Common::Callback<IndexPageHandler, Client &>(this, &IndexPageHandler::handleFiles));
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Common::ArchiveMemberList fileList = listArchive();
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for (Common::ArchiveMemberList::iterator it = fileList.begin(); it != fileList.end(); ++it) {
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Common::ArchiveMember const &m = **it;
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if (m.getName() == INDEX_PAGE_NAME) continue;
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if (m.getName() == FILES_PAGE_NAME) continue;
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server.addPathHandler("/" + m.getName(), new Common::Callback<IndexPageHandler, Client &>(this, &IndexPageHandler::handleResource));
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}
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}
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Common::String IndexPageHandler::code() { return _code; }
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/// utils
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Common::Archive *IndexPageHandler::getZipArchive() {
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// first search in themepath
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if (ConfMan.hasKey("themepath")) {
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const Common::FSNode &node = Common::FSNode(ConfMan.get("themepath"));
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if (!node.exists() || !node.isReadable() || !node.isDirectory())
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return nullptr;
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Common::FSNode fileNode = node.getChild(ARCHIVE_NAME);
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if (fileNode.exists() && fileNode.isReadable() && !fileNode.isDirectory()) {
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Common::SeekableReadStream *const stream = fileNode.createReadStream();
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Common::Archive *zipArchive = Common::makeZipArchive(stream);
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if (zipArchive) return zipArchive;
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}
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}
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// then use SearchMan to find it
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Common::ArchiveMemberList fileList;
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SearchMan.listMatchingMembers(fileList, ARCHIVE_NAME);
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for (Common::ArchiveMemberList::iterator it = fileList.begin(); it != fileList.end(); ++it) {
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Common::ArchiveMember const &m = **it;
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Common::SeekableReadStream *const stream = m.createReadStream();
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Common::Archive *zipArchive = Common::makeZipArchive(stream);
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if (zipArchive) return zipArchive;
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}
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return nullptr;
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}
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Common::ArchiveMemberList IndexPageHandler::listArchive() {
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Common::ArchiveMemberList resultList;
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Common::Archive *zipArchive = getZipArchive();
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if (zipArchive) {
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zipArchive->listMembers(resultList);
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delete zipArchive;
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}
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return resultList;
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}
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Common::SeekableReadStream *IndexPageHandler::getArchiveFile(Common::String name) {
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Common::SeekableReadStream *result = nullptr;
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Common::Archive *zipArchive = getZipArchive();
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if (zipArchive) {
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const Common::ArchiveMemberPtr ptr = zipArchive->getMember(name);
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result = ptr->createReadStream();
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delete zipArchive;
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}
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return result;
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}
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Common::String IndexPageHandler::readEverythingFromStream(Common::SeekableReadStream *const stream) {
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Common::String result;
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char buf[1024];
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uint32 readBytes;
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while (!stream->eos()) {
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readBytes = stream->read(buf, 1024);
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result += Common::String(buf, readBytes);
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}
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return result;
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}
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} // End of namespace Networking
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