diff options
Diffstat (limited to 'markdown-plugin/src/main/java/fi/iki/elonen/MarkdownWebServerPlugin.java')
-rw-r--r-- | markdown-plugin/src/main/java/fi/iki/elonen/MarkdownWebServerPlugin.java | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/markdown-plugin/src/main/java/fi/iki/elonen/MarkdownWebServerPlugin.java b/markdown-plugin/src/main/java/fi/iki/elonen/MarkdownWebServerPlugin.java new file mode 100644 index 0000000..5144fea --- /dev/null +++ b/markdown-plugin/src/main/java/fi/iki/elonen/MarkdownWebServerPlugin.java @@ -0,0 +1,121 @@ +package fi.iki.elonen; + +/* + * #%L + * NanoHttpd-Webserver-Markdown-Plugin + * %% + * Copyright (C) 2012 - 2015 nanohttpd + * %% + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. Neither the name of the nanohttpd nor the names of its contributors + * may be used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * #L% + */ + +import static fi.iki.elonen.NanoHTTPD.Response.Status.OK; + +import java.io.BufferedReader; +import java.io.ByteArrayInputStream; +import java.io.File; +import java.io.FileReader; +import java.io.IOException; +import java.io.UnsupportedEncodingException; +import java.util.Map; +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.pegdown.PegDownProcessor; + +/** + * @author Paul S. Hawke (paul.hawke@gmail.com) On: 9/13/13 at 4:03 AM + */ +public class MarkdownWebServerPlugin implements WebServerPlugin { + + /** + * logger to log to. + */ + private static final Logger LOG = Logger.getLogger(MarkdownWebServerPlugin.class.getName()); + + private final PegDownProcessor processor; + + public MarkdownWebServerPlugin() { + this.processor = new PegDownProcessor(); + } + + @Override + public boolean canServeUri(String uri, File rootDir) { + File f = new File(rootDir, uri); + return f.exists(); + } + + @Override + public void initialize(Map<String, String> commandLineOptions) { + } + + private String readSource(File file) { + FileReader fileReader = null; + BufferedReader reader = null; + try { + fileReader = new FileReader(file); + reader = new BufferedReader(fileReader); + String line = null; + StringBuilder sb = new StringBuilder(); + do { + line = reader.readLine(); + if (line != null) { + sb.append(line).append("\n"); + } + } while (line != null); + reader.close(); + return sb.toString(); + } catch (Exception e) { + MarkdownWebServerPlugin.LOG.log(Level.SEVERE, "could not read source", e); + return null; + } finally { + try { + if (fileReader != null) { + fileReader.close(); + } + if (reader != null) { + reader.close(); + } + } catch (IOException ignored) { + MarkdownWebServerPlugin.LOG.log(Level.FINEST, "close failed", ignored); + } + } + } + + @Override + public NanoHTTPD.Response serveFile(String uri, Map<String, String> headers, NanoHTTPD.IHTTPSession session, File file, String mimeType) { + String markdownSource = readSource(file); + byte[] bytes; + try { + bytes = this.processor.markdownToHtml(markdownSource).getBytes("UTF-8"); + } catch (UnsupportedEncodingException e) { + MarkdownWebServerPlugin.LOG.log(Level.SEVERE, "encoding problem, responding nothing", e); + bytes = new byte[0]; + } + return markdownSource == null ? null : new NanoHTTPD.Response(OK, NanoHTTPD.MIME_HTML, new ByteArrayInputStream(bytes), bytes.length); + } +} |