This is an automated email from the ASF dual-hosted git repository. rombert pushed a commit to branch master in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-commons-fsclassloader.git
commit 37279f528f6b804dcaba9a24a480f55cfc3ad1db Author: Dan Klco <[email protected]> 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@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 ? 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