+++ /dev/null
-package pnews.servlet;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.io.UnsupportedEncodingException;
-import java.io.Writer;
-import java.net.URLDecoder;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.ServletConfig;
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import com.rometools.rome.io.FeedException;
-
-import net.wpitchoune.pnews.Article;
-import net.wpitchoune.pnews.ArticleStore;
-import net.wpitchoune.pnews.Category;
-import net.wpitchoune.pnews.Config;
-import net.wpitchoune.pnews.Language;
-
-public class Pnews extends HttpServlet {
- private static final String CLASS_NAME = Pnews.class.getName();
- private static final Logger LOG = Logger.getLogger(Pnews.class.getName());
- private static final long serialVersionUID = 1L;
- private ArticleProvider provider;
- private Config config;
-
- private static String getQueryParameter(HttpServletRequest rq, String key)
- throws UnsupportedEncodingException {
- final String METHOD_NAME="getQueryParameter";
- String[] params;
- int idx;
- String q;
-
-
- LOG.entering(CLASS_NAME, METHOD_NAME, new Object[] { rq, key} );
-
- q = rq.getQueryString();
-
- if (q == null)
- return null;
-
- params = q.split("&");
-
- for (String p: params) {
- idx = p.indexOf('=');
-
- if (idx > 1 && p.substring(0, idx).equals(key))
- return URLDecoder.decode(p.substring(idx + 1), "UTF-8");
- }
-
- return null;
- }
-
- private static void redirect(HttpServletRequest rq, HttpServletResponse rp) {
- String redirectURL;
- Article a;
-
- LOG.entering(Pnews.class.getName(), "redirect", new Object[] { rq, rp });
-
- try {
- redirectURL = getQueryParameter(rq, "url");
-
- LOG.info("Request redirection to " + redirectURL);
-
- if (redirectURL != null) {
- a = ArticleStore.singleton.get(redirectURL);
- if (a != null)
- a.incrementReadCount();
- else
- LOG.severe("Cannot find the article " + redirectURL);
-
- rp.setHeader("Location", redirectURL);
- rp.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
- } else {
- LOG.severe("No redirection URL");
- rp.setStatus(HttpServletResponse.SC_NOT_FOUND);
- }
-
- } catch (UnsupportedEncodingException e) {
- e.printStackTrace();
- LOG.log(Level.SEVERE, "redirect failure", e);
- rp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
- }
-
- LOG.exiting(Pnews.class.getName(), "redirect");
- }
-
- private static void doTemporaryRedirect(String newURL, HttpServletResponse rp) {
- rp.setHeader("Location", newURL);
- rp.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
- }
-
- private void writeStats(HttpServletResponse rp) throws IOException {
- rp.setContentType("application/json;charset=utf-8");
- rp.setCharacterEncoding("utf-8");
-
- rp.getWriter().write(JSON.getStats(provider, config));
- }
-
-
- private void writeArticles(Category cat, String entity, HttpServletResponse rp) {
- String html;
- List<Article> articles;
-
- try {
- articles = provider.getArticles(cat, entity);
- if (articles != null) {
- html = HTML.toHTML(articles, cat, entity, config, provider);
- rp.setContentType("text/html;charset=utf-8");
- rp.getWriter().write(html);
- rp.setCharacterEncoding("utf-8");
- } else {
- LOG.severe("writeArticles cannot retrieve any articles");
- html = HTML.toHTML(new ArrayList<Article>(), cat, entity, config, provider);
- rp.setContentType("text/html");
- rp.getWriter().write(html);
- }
- } catch (IOException | IllegalArgumentException | FeedException e) {
- LOG.log(Level.SEVERE, "writeArticles failure", e);
- rp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
- }
- }
-
- private void copy(InputStream in, Writer writer) throws IOException {
- Reader r;
- char[] buf;
- int n;
-
- buf = new char[1024];
- r = new InputStreamReader(in);
- while ( (n = r.read(buf, 0, buf.length)) != -1)
- writer.write(buf, 0, n);
- }
-
- @Override
- protected void doGet(HttpServletRequest req, HttpServletResponse resp) {
- final String METHOD_NAME = "doGet";
- String path;
- InputStream in;
-
- RequesterLog.singleton.writeRequest(req);
-
- LOG.info("doGet " + req.getRemoteAddr().toString() + " " + req.getRequestURI() + " " + req.getQueryString());
-
- LOG.info(METHOD_NAME + " queryString=" + req.getQueryString());
-
- path = req.getPathInfo();
-
- if (path.equals("/redirect")) {
- redirect(req, resp);
- return ;
- }
-
- if (path.equals("/style.css")) {
- try {
- in = HTML.class.getClassLoader().getResourceAsStream("style.css");
- copy(in, resp.getWriter());
- resp.setContentType("text/css");
-
- return ;
- } catch (IOException e) {
- LOG.log(Level.SEVERE, "doGet failure", e);
- resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
-
- return ;
- }
- }
-
- if (path.equals("/")) {
- doTemporaryRedirect(config.getDefaultLanguage().toURL(), resp);
- return ;
- }
-
- try {
- if (path.equals("/stats")) {
- writeStats(resp);
- return ;
- }
-
- for (Category cat: config.getCategories()) {
- if (path.equals(cat.getURL())) {
- writeArticles(cat, getQueryParameter(req, "entity"), resp);
- return ;
- }
- }
-
- for (Language l: config.getLanguages()) {
- if (path.equals(l.toURL())) {
- doTemporaryRedirect(config.getDefaultCategory(l).getURL(), resp);
- return ;
- }
- }
-
- resp.getWriter().write("Not found " + req.getPathInfo());
- resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
- } catch (IOException | RuntimeException e) {
- LOG.log(Level.SEVERE, "doGet failure", e);
- resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
- }
- }
-
- @Override
- public void init(ServletConfig cfg) throws ServletException {
- LOG.info("Pnews servlet init " + cfg.getServletContext().getContextPath());
-
- config = new Config();
- try {
- config.loadConfig();
- } catch (UnsupportedEncodingException e) {
- throw new ServletException(e);
- }
-
- provider = new ArticleProvider(config);
- }
-}
projects / pnews.git / blobdiff