org.ng200.openolympus.controller.admin.DiagnosticsController.java Source code

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Here is the source code for org.ng200.openolympus.controller.admin.DiagnosticsController.java

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/**
 * The MIT License
 * Copyright (c) 2014 Nick Guletskii
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.ng200.openolympus.controller.admin;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.Collectors;

import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.DefaultExecutor;
import org.apache.commons.exec.ExecuteWatchdog;
import org.apache.commons.exec.PumpStreamHandler;
import org.ng200.openolympus.FileAccess;
import org.ng200.openolympus.HtmlUtils;
import org.ng200.openolympus.Pair;
import org.ng200.openolympus.repositories.VerdictRepository;
import org.ng200.openolympus.services.SolutionService;
import org.ng200.openolympus.services.TestingService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class DiagnosticsController {
    @Autowired
    private SolutionService solutionService;

    @Autowired
    private TestingService testingService;

    @Autowired
    private VerdictRepository verdictRepository;

    public boolean isChrootPresent() {
        final File chroot = new File("/usr/chroot");
        return chroot.exists() && chroot.isDirectory();
    }

    public boolean isExecutable(final File file) {
        return this.isFile(file) && FileAccess.isExecutable(file);
    }

    private boolean isFile(final File file) {
        return file != null && file.exists() && !file.isDirectory();
    }

    public boolean isFpcPresent() {
        return this.isExecutable(this.which("ppcx64"));
    }

    public boolean isGppPresent() {
        return this.isExecutable(this.which("g++"));
    }

    public boolean isJavacPresent() {
        return this.isExecutable(this.which("javac"));
    }

    public boolean isLibsandboxPresent() {
        return this.isFile(new File("/usr/lib/libsandbox.so"));
    }

    public boolean isOlrunnerPresent() {
        return this.isExecutable(this.which("olrunner"));
    }

    public boolean isRsyncPresent() {
        return this.isExecutable(this.which("rsync"));
    }

    @RequestMapping(value = "/admin/diagnostics", method = RequestMethod.GET)
    public String showDiagnosticsPage(final Model model) {
        final Map<String, Boolean> statusMap = new TreeMap<String, Boolean>();
        statusMap.put("olrunner", this.isOlrunnerPresent());
        statusMap.put("GCC", this.isGppPresent());
        statusMap.put("FPC", this.isFpcPresent());
        statusMap.put("JDK", this.isJavacPresent());
        statusMap.put("rsync", this.isRsyncPresent());
        statusMap.put("libsandbox", this.isLibsandboxPresent());
        statusMap.put("chroot template", this.isChrootPresent());
        model.addAttribute("statusMap", statusMap);
        model.addAttribute("numberOfPendingVerdicts",
                this.verdictRepository.findByTestedOrderByIdAsc(false).size());
        model.addAttribute("testingServiceInternalErrors",
                this.testingService.getInternalErrors().stream()
                        .map(p -> new Pair<>(p.getFirst(), HtmlUtils.stringToHtml(p.getSecond())))
                        .collect(Collectors.toList()));
        return "admin/diagnostics";
    }

    private File which(final String applicationName) {
        try {
            final DefaultExecutor executor = new DefaultExecutor();
            executor.setWatchdog(new ExecuteWatchdog(20000));
            final CommandLine commandLine = new CommandLine("which");
            commandLine.addArgument(applicationName);
            final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            executor.setStreamHandler(new PumpStreamHandler(byteArrayOutputStream));
            executor.execute(commandLine);
            final String fileName = byteArrayOutputStream.toString().trim();
            if (fileName.isEmpty()) {
                return null;
            }
            return new File(fileName);
        } catch (final IOException e) {
            return null;
        }
    }
}