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/*
* Copyright 2011 gitblit.com.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gitblit.wicket.pages;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Map;
import org.apache.wicket.Component;
import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.Image;
import org.apache.wicket.markup.html.link.BookmarkablePageLink;
import org.eclipse.jgit.lib.Constants;
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.StringUtils;
import com.gitblit.wicket.CacheControl;
import com.gitblit.wicket.CacheControl.LastModified;
import com.gitblit.wicket.ExternalImage;
import com.gitblit.wicket.WicketUtils;
import com.gitblit.wicket.panels.CommitHeaderPanel;
import com.gitblit.wicket.panels.PathBreadcrumbsPanel;
@CacheControl(LastModified.BOOT)
public class BlobPage extends RepositoryPage {
protected String fileExtension;
public BlobPage(PageParameters params) {
super(params);
Repository r = getRepository();
final String blobPath = WicketUtils.getPath(params);
String [] encodings = GitBlit.getEncodings();
if (StringUtils.isEmpty(blobPath)) {
// blob by objectid
add(new BookmarkablePageLink<Void>("blameLink", BlamePage.class,
WicketUtils.newPathParameter(repositoryName, objectId, blobPath))
.setEnabled(false));
add(new BookmarkablePageLink<Void>("historyLink", HistoryPage.class).setEnabled(false));
add(new BookmarkablePageLink<Void>("rawLink", RawPage.class,
WicketUtils.newPathParameter(repositoryName, objectId, blobPath)));
add(new BookmarkablePageLink<Void>("headLink", BlobPage.class).setEnabled(false));
add(new CommitHeaderPanel("commitHeader", objectId));
add(new PathBreadcrumbsPanel("breadcrumbs", repositoryName, blobPath, objectId));
Component c = new Label("blobText", JGitUtils.getStringContent(r, objectId, encodings));
WicketUtils.setCssClass(c, "plainprint");
add(c);
} else {
// standard blob view
String extension = null;
if (blobPath.lastIndexOf('.') > -1) {
extension = blobPath.substring(blobPath.lastIndexOf('.') + 1).toLowerCase();
}
// see if we should redirect to the markdown page
for (String ext : GitBlit.getStrings(Keys.web.markdownExtensions)) {
if (ext.equals(extension)) {
setResponsePage(MarkdownPage.class, params);
return;
}
}
// manually get commit because it can be null
RevCommit commit = JGitUtils.getCommit(r, objectId);
// blob page links
add(new BookmarkablePageLink<Void>("blameLink", BlamePage.class,
WicketUtils.newPathParameter(repositoryName, objectId, blobPath)));
add(new BookmarkablePageLink<Void>("historyLink", HistoryPage.class,
WicketUtils.newPathParameter(repositoryName, objectId, blobPath)));
add(new BookmarkablePageLink<Void>("rawLink", RawPage.class,
WicketUtils.newPathParameter(repositoryName, objectId, blobPath)));
add(new BookmarkablePageLink<Void>("headLink", BlobPage.class,
WicketUtils.newPathParameter(repositoryName, Constants.HEAD, blobPath)));
add(new CommitHeaderPanel("commitHeader", repositoryName, commit));
add(new PathBreadcrumbsPanel("breadcrumbs", repositoryName, blobPath, objectId));
// Map the extensions to types
Map<String, Integer> map = new HashMap<String, Integer>();
for (String ext : GitBlit.getStrings(Keys.web.prettyPrintExtensions)) {
map.put(ext.toLowerCase(), 1);
}
for (String ext : GitBlit.getStrings(Keys.web.imageExtensions)) {
map.put(ext.toLowerCase(), 2);
}
for (String ext : GitBlit.getStrings(Keys.web.binaryExtensions)) {
map.put(ext.toLowerCase(), 3);
}
if (extension != null) {
int type = 0;
if (map.containsKey(extension)) {
type = map.get(extension);
}
switch (type) {
case 2:
// image blobs
add(new Label("blobText").setVisible(false));
add(new ExternalImage("blobImage", urlFor(RawPage.class, WicketUtils.newPathParameter(repositoryName, objectId, blobPath)).toString()));
break;
case 3:
// binary blobs
add(new Label("blobText", "Binary File"));
add(new Image("blobImage").setVisible(false));
break;
default:
// plain text
String source = JGitUtils.getStringContent(r, commit.getTree(), blobPath, encodings);
String table;
if (source == null) {
table = missingBlob(blobPath, commit);
} else {
table = generateSourceView(source, extension, type == 1);
}
add(new Label("blobText", table).setEscapeModelStrings(false));
add(new Image("blobImage").setVisible(false));
fileExtension = extension;
}
} else {
// plain text
String source = JGitUtils.getStringContent(r, commit.getTree(), blobPath, encodings);
String table;
if (source == null) {
table = missingBlob(blobPath, commit);
} else {
table = generateSourceView(source, null, false);
}
add(new Label("blobText", table).setEscapeModelStrings(false));
add(new Image("blobImage").setVisible(false));
}
}
}
protected String missingBlob(String blobPath, RevCommit commit) {
StringBuilder sb = new StringBuilder();
sb.append("<div class=\"alert alert-error\">");
String pattern = getString("gb.doesNotExistInTree").replace("{0}", "<b>{0}</b>").replace("{1}", "<b>{1}</b>");
sb.append(MessageFormat.format(pattern, blobPath, commit.getTree().getId().getName()));
sb.append("</div>");
return sb.toString();
}
protected String generateSourceView(String source, String extension, boolean prettyPrint) {
String [] lines = source.split("\n");
StringBuilder sb = new StringBuilder();
sb.append("<!-- start blob table -->");
sb.append("<table width=\"100%\"><tbody><tr>");
// nums column
sb.append("<!-- start nums column -->");
sb.append("<td id=\"nums\">");
sb.append("<pre>");
String numPattern = "<span id=\"L{0}\" class=\"jump\"></span><a href=\"#L{0}\">{0}</a>\n";
for (int i = 0; i < lines.length; i++) {
sb.append(MessageFormat.format(numPattern, "" + (i + 1)));
}
sb.append("</pre>");
sb.append("<!-- end nums column -->");
sb.append("</td>");
sb.append("<!-- start lines column -->");
sb.append("<td id=\"lines\">");
sb.append("<div class=\"sourceview\">");
if (prettyPrint) {
sb.append("<pre class=\"prettyprint lang-" + extension + "\">");
} else {
sb.append("<pre class=\"plainprint\">");
}
lines = StringUtils.escapeForHtml(source, true).split("\n");
sb.append("<table width=\"100%\"><tbody>");
String linePattern = "<tr class=\"{0}\"><td><div><span class=\"line\">{1}</span></div>\r</tr>";
for (int i = 0; i < lines.length; i++) {
String line = lines[i].replace('\r', ' ');
String cssClass = (i % 2 == 0) ? "even" : "odd";
if (StringUtils.isEmpty(line.trim())) {
line = " ";
}
sb.append(MessageFormat.format(linePattern, cssClass, line, "" + (i + 1)));
}
sb.append("</tbody></table></pre>");
sb.append("</pre>");
sb.append("</div>");
sb.append("</td>");
sb.append("<!-- end lines column -->");
sb.append("</tr></tbody></table>");
sb.append("<!-- end blob table -->");
return sb.toString();
}
@Override
protected String getPageName() {
return getString("gb.view");
}
@Override
protected Class<? extends BasePage> getRepoNavPageClass() {
return TreePage.class;
}
}
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