From a7317acec01cde855a9f9f3d2da3dcc49d89aa86 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Thu, 24 Oct 2013 23:44:11 -0400
Subject: Support for intra-Markdown linking using [[WikiLinks]] syntax
 (issue-324)

All WikiLinks must be specified relative to the root of the repository.
The displayed link text is stripped to just the document name. Spaces in
the document name are replaced with '-' characters; this is consistent with
wiki syntax and Github.

Change-Id: Id3fb1b5441352d9bacc4993a5b85882db113693b
---
 .../com/gitblit/wicket/pages/MarkdownPage.java     | 32 +++++++++++++++++++---
 1 file changed, 28 insertions(+), 4 deletions(-)

(limited to 'src/main/java/com/gitblit/wicket/pages/MarkdownPage.java')

diff --git a/src/main/java/com/gitblit/wicket/pages/MarkdownPage.java b/src/main/java/com/gitblit/wicket/pages/MarkdownPage.java
index 188a5b4b..e0c85cf5 100644
--- a/src/main/java/com/gitblit/wicket/pages/MarkdownPage.java
+++ b/src/main/java/com/gitblit/wicket/pages/MarkdownPage.java
@@ -16,6 +16,7 @@
 package com.gitblit.wicket.pages;
 
 import java.text.MessageFormat;
+import java.util.List;
 
 import org.apache.wicket.PageParameters;
 import org.apache.wicket.markup.html.basic.Label;
@@ -25,6 +26,7 @@ import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.revwalk.RevCommit;
 
 import com.gitblit.GitBlit;
+import com.gitblit.Keys;
 import com.gitblit.utils.JGitUtils;
 import com.gitblit.utils.MarkdownUtils;
 import com.gitblit.utils.StringUtils;
@@ -38,11 +40,32 @@ public class MarkdownPage extends RepositoryPage {
 	public MarkdownPage(PageParameters params) {
 		super(params);
 
-		final String markdownPath = WicketUtils.getPath(params);
+		final String path = WicketUtils.getPath(params).replace("%2f", "/").replace("%2F", "/");
 
 		Repository r = getRepository();
 		RevCommit commit = JGitUtils.getCommit(r, objectId);
 		String [] encodings = GitBlit.getEncodings();
+		List<String> extensions = GitBlit.getStrings(Keys.web.markdownExtensions);
+
+		// Read raw markdown content and transform it to html
+		String markdownPath = path;
+		String markdownText = JGitUtils.getStringContent(r, commit.getTree(), path, encodings);
+		if (StringUtils.isEmpty(markdownText)) {
+			String name = path;
+			if (path.indexOf('.') > -1) {
+				name = path.substring(0, path.lastIndexOf('.'));
+			}
+
+			for (String ext : extensions) {
+				String checkName = name + "." + ext;
+				markdownText = JGitUtils.getStringContent(r, commit.getTree(), checkName, encodings);
+				if (!StringUtils.isEmpty(markdownText)) {
+					// found it
+					markdownPath = path;
+					break;
+				}
+			}
+		}
 
 		// markdown page links
 		add(new BookmarkablePageLink<Void>("blameLink", BlamePage.class,
@@ -54,13 +77,14 @@ public class MarkdownPage extends RepositoryPage {
 		add(new BookmarkablePageLink<Void>("headLink", MarkdownPage.class,
 				WicketUtils.newPathParameter(repositoryName, Constants.HEAD, markdownPath)));
 
-		// Read raw markdown content and transform it to html
-		String markdownText = JGitUtils.getStringContent(r, commit.getTree(), markdownPath, encodings);
 		String htmlText;
 		try {
-			htmlText = MarkdownUtils.transformMarkdown(markdownText);
+			htmlText = MarkdownUtils.transformMarkdown(markdownText, getLinkRenderer());
 		} catch (Exception e) {
 			logger.error("failed to transform markdown", e);
+			if (markdownText == null) {
+				markdownText = String.format("Markdown document <b>%1$s</b> not found in <em>%2$s</em>", markdownPath, repositoryName);
+			}
 			markdownText = MessageFormat.format("<div class=\"alert alert-error\"><strong>{0}:</strong> {1}</div>{2}", getString("gb.error"), getString("gb.markdownFailure"), markdownText);
 			htmlText = StringUtils.breakLinesForHtml(markdownText);
 		}
-- 
cgit v1.2.3