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Posted to commits@sling.apache.org by ro...@apache.org on 2017/11/07 09:21:17 UTC
[sling-org-apache-sling-commons-fsclassloader] 03/06: Working on
SLING-4792 : Adding an OSGi Console for viewing the FSClassloader files
This is an automated email from the ASF dual-hosted git repository.
rombert pushed a commit to annotated tag org.apache.sling.commons.fsclassloader-1.0.2
in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-commons-fsclassloader.git
commit 1339f45e8668feabdfe65d6cfd458f1bf669082a
Author: Dan Klco <dk...@apache.org>
AuthorDate: Wed Jun 10 15:19:57 2015 +0000
Working on SLING-4792 : Adding an OSGi Console for viewing the FSClassloader files
git-svn-id: https://svn.apache.org/repos/asf/sling/trunk/bundles/commons/fsclassloader@1684695 13f79535-47bb-0310-9956-ffa450edef68
---
pom.xml | 22 ++
.../impl/FSClassLoaderWebConsole.java | 395 +++++++++++++++++++++
src/main/resources/res/ui/prettify.css | 1 +
src/main/resources/res/ui/prettify.js | 30 ++
4 files changed, 448 insertions(+)
diff --git a/pom.xml b/pom.xml
index 6f6630a..13c6efc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -99,5 +99,27 @@
<version>1.3.0</version>
<scope>provided</scope>
</dependency>
+ <dependency>
+ <groupId>javax.servlet</groupId>
+ <artifactId>servlet-api</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>commons-lang</groupId>
+ <artifactId>commons-lang</artifactId>
+ <version>2.5</version>
+ <scope>provided</scope>
+ </dependency>
+ <dependency>
+ <groupId>commons-io</groupId>
+ <artifactId>commons-io</artifactId>
+ <version>1.4</version>
+ <scope>provided</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>org.apache.felix.webconsole</artifactId>
+ <version>3.0.0</version>
+ <scope>provided</scope>
+ </dependency>
</dependencies>
</project>
diff --git a/src/main/java/org/apache/sling/commons/fsclassloader/impl/FSClassLoaderWebConsole.java b/src/main/java/org/apache/sling/commons/fsclassloader/impl/FSClassLoaderWebConsole.java
new file mode 100644
index 0000000..4e36614
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/fsclassloader/impl/FSClassLoaderWebConsole.java
@@ -0,0 +1,395 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.sling.commons.fsclassloader.impl;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Writer;
+import java.net.MalformedURLException;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang.StringEscapeUtils;
+import org.apache.commons.lang.StringUtils;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Properties;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.felix.webconsole.AbstractWebConsolePlugin;
+import org.osgi.service.component.ComponentContext;
+
+/**
+ * Web Console for the FileSystem Class Loader. Allows users to download Java
+ * and Class files.
+ */
+@Component
+@Service
+@Properties({
+ @Property(name = "service.description", value = "JSP Script Handler"),
+ @Property(name = "service.vendor", value = "The Apache Software Foundation"),
+ @Property(name = "felix.webconsole.label", value = FSClassLoaderWebConsole.APP_ROOT),
+ @Property(name = "felix.webconsole.title", value = "File System Class Loader"),
+ @Property(name = "felix.webconsole.css", value = { FSClassLoaderWebConsole.RES_LOC
+ + "/prettify.css" }),
+ @Property(name = "felix.webconsole.category", value = "Sling") })
+public class FSClassLoaderWebConsole extends AbstractWebConsolePlugin {
+
+ static final String APP_ROOT = "fsclassloader";
+
+ static final String RES_LOC = APP_ROOT + "/res/ui";
+
+ /**
+ * Represents a set of class, java and deps files for a script.
+ */
+ private static class ScriptFiles {
+
+ /**
+ * Gets the script associated with the file.
+ *
+ * @param file
+ * the file to find the associate script
+ * @return the associated script
+ */
+ public static String getScript(File file) {
+ String relative = file.getAbsolutePath().substring(
+ root.getAbsolutePath().length());
+ String script = remove(relative, "/org/apache/jsp");
+ script = remove(script, ".class");
+ script = remove(script, ".java");
+ script = remove(script, ".deps");
+ if (File.separatorChar == '\\') {
+ script = script.replace(File.separatorChar, '/');
+ }
+ return StringUtils.substringBeforeLast(script, "_") + "."
+ + StringUtils.substringAfterLast(script, "_");
+ }
+
+ private static String remove(String orig, String rem) {
+ return orig.replace(rem, "");
+ }
+
+ private final String classFile;
+ private final String depsFile;
+
+ private final String javaFile;
+
+ private final String script;
+
+ public ScriptFiles(File file) {
+ script = getScript(file);
+
+ String relative = file.getAbsolutePath().substring(
+ root.getAbsolutePath().length());
+
+ relative = remove(relative, ".class");
+ relative = remove(relative, ".deps");
+ relative = remove(relative, ".java");
+ classFile = relative + ".class";
+ depsFile = relative + ".deps";
+ javaFile = relative + ".java";
+ }
+
+ public String getClassFile() {
+ return classFile;
+ }
+
+ public String getDepsFile() {
+ return depsFile;
+ }
+
+ public String getJavaFile() {
+ return javaFile;
+ }
+
+ public String getScript() {
+ return script;
+ }
+
+ }
+
+ /**
+ * The root under which the class files are under
+ */
+ private static File root;
+
+ /**
+ * The serialization UID
+ */
+ private static final long serialVersionUID = -5728679635644481848L;
+
+ /**
+ * The servlet configuration
+ */
+ private ServletConfig config;
+
+ /**
+ * Activate this component. Create the root directory.
+ *
+ * @param componentContext
+ * @throws MalformedURLException
+ */
+ @Activate
+ protected void activate(final ComponentContext componentContext)
+ throws MalformedURLException {
+ // get the file root
+ root = new File(componentContext.getBundleContext().getDataFile(""),
+ "classes");
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see javax.servlet.Servlet#destroy()
+ */
+ public void destroy() {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see javax.servlet.Servlet#service(javax.servlet.ServletRequest,
+ * javax.servlet.ServletResponse)
+ */
+ protected void doGet(HttpServletRequest request,
+ HttpServletResponse response) throws ServletException, IOException {
+ String file = request.getParameter("download");
+ File toDownload = new File(root + file);
+ if (!StringUtils.isEmpty(file)) {
+ if (isValid(toDownload)) {
+ InputStream is = null;
+ try {
+ is = new FileInputStream(toDownload);
+ response.setHeader("Content-disposition",
+ "attachment; filename=" + toDownload.getName());
+ IOUtils.copy(is, response.getOutputStream());
+ } finally {
+ IOUtils.closeQuietly(is);
+ IOUtils.closeQuietly(response.getOutputStream());
+ }
+ } else {
+ response.sendError(404, "File " + file + " not found");
+ }
+ } else if (request.getRequestURI().endsWith(RES_LOC + "/prettify.css")) {
+ response.setContentType("text/css");
+ IOUtils.copy(
+ getClass().getClassLoader().getResourceAsStream(
+ "/res/ui/prettify.css"), response.getOutputStream());
+ } else if (request.getRequestURI().endsWith(RES_LOC + "/prettify.js")) {
+ response.setContentType("application/javascript");
+ IOUtils.copy(
+ getClass().getClassLoader().getResourceAsStream(
+ "/res/ui/prettify.js"), response.getOutputStream());
+ } else {
+ super.doGet(request, response);
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.apache.felix.webconsole.AbstractWebConsolePlugin#getLabel()
+ */
+ @Override
+ public String getLabel() {
+ return "fsclassloader";
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see javax.servlet.Servlet#getServletConfig()
+ */
+ public ServletConfig getServletConfig() {
+ return this.config;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see javax.servlet.Servlet#getServletInfo()
+ */
+ public String getServletInfo() {
+ return "";
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.apache.felix.webconsole.AbstractWebConsolePlugin#getTitle()
+ */
+ @Override
+ public String getTitle() {
+ return "File System Class Loader";
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see javax.servlet.Servlet#init(javax.servlet.ServletConfig)
+ */
+ public void init(ServletConfig config) throws ServletException {
+ this.config = config;
+ }
+
+ /**
+ * Checks whether the specified file is a file and is underneath the root
+ * directory.
+ *
+ * @param file
+ * the file to check
+ * @return false if not a file or not under the root directory, true
+ * otherwise
+ * @throws IOException
+ */
+ private boolean isValid(File file) throws IOException {
+ if (file.isFile()) {
+ File parent = file.getCanonicalFile().getAbsoluteFile()
+ .getParentFile();
+ while (parent != null) {
+ if (parent.getAbsolutePath().equals(root.getAbsolutePath())) {
+ return true;
+ }
+ parent = parent.getParentFile();
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Reads all of the files under the current file.
+ *
+ * @param file
+ * the root file
+ * @param scripts
+ * the map of scripts
+ * @throws IOException
+ * an exception occurs reading the files
+ */
+ private void readFiles(File file, Map<String, ScriptFiles> scripts)
+ throws IOException {
+ if (file.isDirectory()) {
+ for (File f : file.listFiles()) {
+ readFiles(f, scripts);
+ }
+ } else {
+ String script = ScriptFiles.getScript(file);
+ if (!scripts.containsKey(script)
+ && file.getName().endsWith(".java")) {
+ scripts.put(script, new ScriptFiles(file));
+ }
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see
+ * org.apache.felix.webconsole.AbstractWebConsolePlugin#renderContent(javax
+ * .servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
+ */
+ @Override
+ protected void renderContent(HttpServletRequest request,
+ HttpServletResponse response) throws ServletException, IOException {
+ Map<String, ScriptFiles> scripts = new LinkedHashMap<String, ScriptFiles>();
+ readFiles(root, scripts);
+
+ Writer w = response.getWriter();
+
+ w.write("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + RES_LOC
+ + "/prettify.css\"></link>");
+ w.write("<script type=\"text/javascript\" src=\"" + RES_LOC
+ + "/prettify.js\"></script>");
+ w.write("<script>$(document).ready(prettyPrint);</script>");
+ w.write("<style>.prettyprint ol.linenums > li { list-style-type: decimal; }</style>");
+ String file = request.getParameter("view");
+ File toView = new File(root + file);
+ if (!StringUtils.isEmpty(file)) {
+ if (isValid(toView)) {
+
+ w.write("<p class=\"statline ui-state-highlight\">Viewing Script: "
+ + root + file + "</p><br/><br/>");
+
+ ScriptFiles scriptFiles = new ScriptFiles(toView);
+
+ w.write("<table class=\"nicetable ui-widget\">");
+ w.write("<tr class=\"header ui-widget-header\">");
+ w.write("<th>Script</th>");
+ w.write("<th>Class</th>");
+ w.write("<th>Deps</th>");
+ w.write("<th>Java</th>");
+ w.write("</tr>");
+ w.write("<tr class=\"ui-state-default\">");
+ w.write("<td>" + scriptFiles.getScript() + "</td>");
+ w.write("<td>[<a href=\"?download="
+ + scriptFiles.getClassFile()
+ + "\" target=\"_blank\">download</a>]</td>");
+ w.write("<td>[<a href=\"?download="
+ + scriptFiles.getDepsFile()
+ + "\" target=\"_blank\">download</a>]</td>");
+ w.write("<td>[<a href=\"?download="
+ + scriptFiles.getJavaFile()
+ + "\" target=\"_blank\">download</a>]</td>");
+ w.write("</tr>");
+ w.write("</table><br/><br/>");
+ InputStream is = null;
+ try {
+ is = new FileInputStream(toView);
+ String contents = IOUtils.toString(is);
+ w.write("<pre class=\"prettyprint linenums\"><code>");
+ StringEscapeUtils.escapeHtml(w, contents);
+ w.write("</pre></code>");
+ } finally {
+ IOUtils.closeQuietly(is);
+ }
+ } else {
+ response.sendError(404, "File " + file + " not found");
+ }
+ } else {
+
+ w.write("<p class=\"statline ui-state-highlight\">File System ClassLoader Root: "
+ + root + "</p>");
+
+ w.write("<table class=\"nicetable ui-widget\">");
+ w.write("<tr class=\"header ui-widget-header\">");
+ w.write("<th>View</th>");
+ w.write("<th>Script</th>");
+ w.write("</tr>");
+ int i = 0;
+ for (ScriptFiles scriptFiles : scripts.values()) {
+ w.write("<tr class=\"" + (i % 2 == 0 ? "even" : "odd")
+ + " ui-state-default\">");
+ w.write("<td>[<a href=\"?view=" + scriptFiles.getJavaFile()
+ + "\">view</a>]</td>");
+ w.write("<td>" + scriptFiles.getScript() + "</td>");
+ w.write("</tr>");
+ i++;
+ }
+ w.write("</table>");
+ }
+ }
+}
diff --git a/src/main/resources/res/ui/prettify.css b/src/main/resources/res/ui/prettify.css
new file mode 100644
index 0000000..d44b3a2
--- /dev/null
+++ b/src/main/resources/res/ui/prettify.css
@@ -0,0 +1 @@
+.pln{color:#000}@media screen{.str{color:#080}.kwd{color:#008}.com{color:#800}.typ{color:#606}.lit{color:#066}.pun,.opn,.clo{color:#660}.tag{color:#008}.atn{color:#606}.atv{color:#080}.dec,.var{color:#606}.fun{color:red}}@media print,projection{.str{color:#060}.kwd{color:#006;font-weight:bold}.com{color:#600;font-style:italic}.typ{color:#404;font-weight:bold}.lit{color:#044}.pun,.opn,.clo{color:#440}.tag{color:#006;font-weight:bold}.atn{color:#404}.atv{color:#060}}pre.prettyprint{padding [...]
\ No newline at end of file
diff --git a/src/main/resources/res/ui/prettify.js b/src/main/resources/res/ui/prettify.js
new file mode 100644
index 0000000..7b99049
--- /dev/null
+++ b/src/main/resources/res/ui/prettify.js
@@ -0,0 +1,30 @@
+!function(){var q=null;window.PR_SHOULD_USE_CONTINUATION=!0;
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