Add indexes (WIP)

src/main/java/me/mrletsplay/mdblog/MdBlog.java

@@ -6,15 +6,21 @@ import java.nio.file.StandardWatchEventKinds;
 import java.nio.file.WatchKey;
 import java.nio.file.WatchService;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 import me.mrletsplay.mdblog.blog.Post;
+import me.mrletsplay.simplehttpserver.dom.html.HtmlDocument;
+import me.mrletsplay.simplehttpserver.dom.html.HtmlElement;
 import me.mrletsplay.simplehttpserver.http.HttpRequestMethod;
+import me.mrletsplay.simplehttpserver.http.HttpStatusCodes;
 import me.mrletsplay.simplehttpserver.http.document.FileDocument;
 import me.mrletsplay.simplehttpserver.http.request.HttpRequestContext;
+import me.mrletsplay.simplehttpserver.http.response.TextResponse;
 import me.mrletsplay.simplehttpserver.http.server.HttpServer;
 
 public class MdBlog {
@@ -34,6 +40,10 @@ public class MdBlog {
 			.port(3706)
 			.create());
 
+		server.getDocumentProvider().registerPattern(HttpRequestMethod.GET, "/posts", () -> {
+			createPostsIndex(POSTS_PATH);
+		});
+
 		server.getDocumentProvider().registerPattern(HttpRequestMethod.GET, "/posts/{path...}", () -> {
 			HttpRequestContext ctx = HttpRequestContext.getCurrentContext();
 			String path = ctx.getPathParameters().get("path");
@@ -44,13 +54,19 @@ public class MdBlog {
 			}
 
 			Path resolved = POSTS_PATH.resolve(path).normalize();
-			if(!resolved.startsWith(POSTS_PATH) || resolved.getFileName().toString().endsWith(".md")) {
+			if(!resolved.startsWith(POSTS_PATH)) {
 				server.getDocumentProvider().getNotFoundDocument().createContent();
 				return;
 			}
 
 			if(!Files.isRegularFile(resolved)) {
-				server.getDocumentProvider().getNotFoundDocument().createContent();
+				if(!Files.isDirectory(resolved)) {
+					server.getDocumentProvider().getNotFoundDocument().createContent();
+					return;
+				}
+
+				createPostsIndex(resolved);
+
 				return;
 			}
 
@@ -62,6 +78,7 @@ public class MdBlog {
 		});
 
 		extractAndRegister("style/base.css");
+		extractAndRegister("style/index.css");
 		extractAndRegister("style/post.css");
 
 		server.start();
@@ -92,6 +109,41 @@ public class MdBlog {
 		}
 	}
 
+	private static void createPostsIndex(Path directory) {
+		try {
+			// Generate posts index
+			List<Path> inDir = Files.list(directory)
+				.filter(p -> Files.isDirectory(p) || posts.values().stream().anyMatch(post -> post.getFilePath().equals(p)))
+				.collect(Collectors.toList());
+			Collections.sort(inDir);
+
+			HtmlDocument index = new HtmlDocument();
+			index.setTitle("Index of " + directory.getFileName());
+			index.addStyleSheet("/style/index.css");
+
+			HtmlElement ul = new HtmlElement("ul");
+			for(Path p : inDir) {
+				HtmlElement li = new HtmlElement("li");
+				HtmlElement a = new HtmlElement("a");
+				String relPath = directory.relativize(p).toString();
+				if(Files.isRegularFile(p)) relPath = relPath.substring(0, relPath.length() - Post.FILE_EXTENSION.length());
+				// TODO: only works with trailing /
+				a.setAttribute("href", relPath);
+				a.setText(relPath);
+				li.appendChild(a);
+				ul.appendChild(li);
+			}
+
+			index.getBodyNode().appendChild(ul);
+
+			index.createContent();
+		}catch(IOException e) {
+			e.printStackTrace();
+			HttpRequestContext ctx = HttpRequestContext.getCurrentContext();
+			ctx.respond(HttpStatusCodes.INTERNAL_SERVER_ERROR_500, new TextResponse("Failed to create index"));
+		}
+	}
+
 	private static void extractAndRegister(String path) throws IOException {
 		Path filePath = FILES_PATH.resolve(path);
 		if(!Files.exists(filePath)) {
@@ -111,12 +163,12 @@ public class MdBlog {
 
 		Files.walk(POSTS_PATH)
 			.filter(Files::isRegularFile)
-			.filter(f -> f.getFileName().toString().endsWith(".md"))
+			.filter(f -> f.getFileName().toString().endsWith(Post.FILE_EXTENSION))
 			.filter(f -> posts.values().stream().noneMatch(p -> p.getFilePath().equals(f)))
 			.forEach(f -> {
 				try {
 					String path = POSTS_PATH.relativize(f).toString();
-					path = path.substring(0, path.length() - ".md".length());
+					path = path.substring(0, path.length() - Post.FILE_EXTENSION.length());
 					posts.put(path, new Post(f));
 				} catch (IOException e) {}
 			});

src/main/java/me/mrletsplay/mdblog/blog/Post.java

@@ -13,6 +13,8 @@ import me.mrletsplay.simplehttpserver.dom.html.HtmlDocument;
 
 public class Post {
 
+	public static final String FILE_EXTENSION = ".md";
+
 	private static final MessageDigest MD_5;
 	private static final MdRenderer RENDERER = new MdRenderer();
 
@@ -39,6 +41,11 @@ public class Post {
 		return filePath;
 	}
 
+	public String getName() {
+		String fileName = filePath.getFileName().toString();
+		return fileName.substring(0, fileName.length() - FILE_EXTENSION.length());
+	}
+
 	public PostMetadata getMetadata() {
 		return metadata;
 	}

src/main/resources/style/index.css

@@ -0,0 +1,7 @@
+ul {
+	
+}
+
+li {
+	
+}