1 package org
.argeo
.cms
.servlet
.internal
;
3 import java
.io
.IOException
;
4 import java
.io
.InputStream
;
6 import java
.util
.Collection
;
7 import java
.util
.SortedMap
;
8 import java
.util
.TreeMap
;
10 import javax
.servlet
.ServletException
;
11 import javax
.servlet
.http
.HttpServlet
;
12 import javax
.servlet
.http
.HttpServletRequest
;
13 import javax
.servlet
.http
.HttpServletResponse
;
15 import org
.apache
.commons
.io
.IOUtils
;
16 import org
.argeo
.cms
.osgi
.PublishNamespace
;
17 import org
.argeo
.osgi
.util
.FilterRequirement
;
18 import org
.osgi
.framework
.Bundle
;
19 import org
.osgi
.framework
.BundleContext
;
20 import org
.osgi
.framework
.FrameworkUtil
;
21 import org
.osgi
.framework
.Version
;
22 import org
.osgi
.framework
.VersionRange
;
23 import org
.osgi
.framework
.namespace
.PackageNamespace
;
24 import org
.osgi
.framework
.wiring
.BundleCapability
;
25 import org
.osgi
.framework
.wiring
.BundleWiring
;
26 import org
.osgi
.framework
.wiring
.FrameworkWiring
;
27 import org
.osgi
.resource
.Requirement
;
29 public class PkgServlet
extends HttpServlet
{
30 private static final long serialVersionUID
= 7660824185145214324L;
32 private BundleContext bundleContext
= FrameworkUtil
.getBundle(PkgServlet
.class).getBundleContext();
35 protected void doGet(HttpServletRequest req
, HttpServletResponse resp
) throws ServletException
, IOException
{
36 String pathInfo
= req
.getPathInfo();
38 String pkg
, versionStr
, file
;
39 String
[] parts
= pathInfo
.split("/");
40 // first is always empty
41 if (parts
.length
== 4) {
43 versionStr
= parts
[2];
45 } else if (parts
.length
== 3) {
50 throw new IllegalArgumentException("Unsupported path length " + pathInfo
);
53 FrameworkWiring frameworkWiring
= bundleContext
.getBundle(0).adapt(FrameworkWiring
.class);
55 if (versionStr
== null) {
56 filter
= "(" + PackageNamespace
.PACKAGE_NAMESPACE
+ "=" + pkg
+ ")";
58 if (versionStr
.startsWith("[") || versionStr
.startsWith("(")) {// range
59 VersionRange versionRange
= new VersionRange(versionStr
);
60 filter
= "(&(" + PackageNamespace
.PACKAGE_NAMESPACE
+ "=" + pkg
+ ")"
61 + versionRange
.toFilterString(PackageNamespace
.CAPABILITY_VERSION_ATTRIBUTE
) + ")";
64 Version version
= new Version(versionStr
);
65 filter
= "(&(" + PackageNamespace
.PACKAGE_NAMESPACE
+ "=" + pkg
+ ")("
66 + PackageNamespace
.CAPABILITY_VERSION_ATTRIBUTE
+ "=" + version
+ "))";
69 Requirement requirement
= new FilterRequirement(PackageNamespace
.PACKAGE_NAMESPACE
, filter
);
70 Collection
<BundleCapability
> packages
= frameworkWiring
.findProviders(requirement
);
71 if (packages
.isEmpty()) {
76 // TODO verify that it works with multiple versions
77 SortedMap
<Version
, BundleCapability
> sorted
= new TreeMap
<>();
78 for (BundleCapability capability
: packages
) {
79 sorted
.put(capability
.getRevision().getVersion(), capability
);
82 Bundle bundle
= sorted
.get(sorted
.firstKey()).getRevision().getBundle();
83 String entryPath
= '/' + pkg
.replace('.', '/') + '/' + file
;
84 URL internalURL
= bundle
.getResource(entryPath
);
85 if (internalURL
== null) {
90 // Resource found, we now check whether it can be published
91 boolean publish
= false;
92 BundleWiring bundleWiring
= bundle
.adapt(BundleWiring
.class);
93 capabilities
: for (BundleCapability bundleCapability
: bundleWiring
94 .getCapabilities(PublishNamespace
.CMS_PUBLISH_NAMESPACE
)) {
95 Object publishedPkg
= bundleCapability
.getAttributes().get(PublishNamespace
.PKG
);
96 if (publishedPkg
!= null) {
97 if (publishedPkg
.equals("*") || publishedPkg
.equals(pkg
)) {
98 Object publishedFile
= bundleCapability
.getAttributes().get(PublishNamespace
.FILE
);
99 if (publishedFile
== null) {
103 String
[] publishedFiles
= publishedFile
.toString().split(",");
104 for (String pattern
: publishedFiles
) {
105 if (pattern
.startsWith("*.")) {
106 String ext
= pattern
.substring(1);
107 if (file
.endsWith(ext
)) {
112 if (publishedFile
.equals(file
)) {
128 try (InputStream in
= internalURL
.openStream()) {
129 IOUtils
.copy(in
, resp
.getOutputStream());