ClientLibraryProxyServlet.java
13.5 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
/*
* Decompiled with CFR 0_118.
*
* Could not load the following classes:
* javax.jcr.RepositoryException
* javax.jcr.Session
* javax.servlet.ServletContext
* javax.servlet.ServletException
* javax.servlet.ServletOutputStream
* javax.servlet.http.HttpServletRequest
* org.apache.commons.io.IOUtils
* org.apache.felix.scr.annotations.Reference
* org.apache.felix.scr.annotations.sling.SlingServlet
* org.apache.jackrabbit.util.Text
* org.apache.sling.api.SlingHttpServletRequest
* org.apache.sling.api.SlingHttpServletResponse
* org.apache.sling.api.request.RequestPathInfo
* org.apache.sling.api.resource.Resource
* org.apache.sling.api.resource.ResourceMetadata
* org.apache.sling.api.resource.ResourceResolver
* org.apache.sling.api.resource.ResourceUtil
* org.apache.sling.api.servlets.SlingSafeMethodsServlet
* org.apache.sling.jcr.api.SlingRepository
* org.apache.sling.jcr.resource.JcrResourceResolverFactory
* org.slf4j.Logger
* org.slf4j.LoggerFactory
*/
package com.adobe.granite.ui.clientlibs.impl;
import com.adobe.granite.ui.clientlibs.HtmlLibrary;
import com.adobe.granite.ui.clientlibs.HtmlLibraryManager;
import com.adobe.granite.ui.clientlibs.LibraryType;
import com.adobe.granite.ui.clientlibs.impl.HtmlLibraryImpl;
import com.adobe.granite.ui.clientlibs.impl.HtmlLibraryManagerImpl;
import com.adobe.granite.ui.clientlibs.impl.HtmlLibraryServlet;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.io.IOUtils;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.sling.SlingServlet;
import org.apache.jackrabbit.util.Text;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.request.RequestPathInfo;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceMetadata;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceUtil;
import org.apache.sling.api.servlets.SlingSafeMethodsServlet;
import org.apache.sling.jcr.api.SlingRepository;
import org.apache.sling.jcr.resource.JcrResourceResolverFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SlingServlet(paths={"/libs/sling/servlet/default/clientlibs.GET.servlet"})
public class ClientLibraryProxyServlet
extends SlingSafeMethodsServlet {
private static final Logger log = LoggerFactory.getLogger(ClientLibraryProxyServlet.class);
@Reference
private HtmlLibraryManager hMgr = null;
@Reference
SlingRepository repository = null;
@Reference
JcrResourceResolverFactory resolverFactory = null;
private final long maxAge = 86400;
/*
* WARNING - Removed try catching itself - possible behaviour change.
*/
protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException {
block47 : {
Resource r = request.getResource();
String[] selectors = request.getRequestPathInfo().getSelectors();
String suffix = request.getRequestPathInfo().getSuffix();
if (selectors.length != 0 || !"/etc".equals(r.getPath()) || ResourceUtil.isNonExistingResource((Resource)r) || suffix == null || suffix.length() < 2) {
log.info("Proxy request to {} not supported.", (Object)request.getRequestURI());
response.setStatus(404);
response.flushBuffer();
return;
}
String relPath = suffix.substring(1);
HtmlLibraryManagerImpl mgr = (HtmlLibraryManagerImpl)this.hMgr;
ResourceResolver resolver = request.getResourceResolver();
String[] sp = resolver.getSearchPath();
Session session = null;
try {
Resource staticResource = ClientLibraryProxyServlet.resolve(resolver, sp, relPath);
if (staticResource == null) {
session = mgr.getServiceSession();
ResourceResolver sessionResolver = this.resolverFactory.getResourceResolver(session);
staticResource = ClientLibraryProxyServlet.resolve(sessionResolver, sp, relPath);
}
if (staticResource == null) {
String s;
int idxLastSlash = relPath.lastIndexOf(47);
int lastDot = relPath.lastIndexOf(46);
if (lastDot < idxLastSlash) {
log.info("Unable to proxy {}. No extension", (Object)relPath);
response.setStatus(404);
response.flushBuffer();
return;
}
String ext = relPath.substring(lastDot);
LibraryType type = null;
if (ext.equals(LibraryType.JS.extension)) {
type = LibraryType.JS;
} else if (ext.equals(LibraryType.CSS.extension)) {
type = LibraryType.CSS;
}
if (type == null) {
log.info("Unable to proxy {}. No supported type for {}", (Object)suffix, (Object)ext);
response.setStatus(404);
response.flushBuffer();
return;
}
int firstDot = relPath.indexOf(46, idxLastSlash);
String libRelPath = relPath.substring(0, firstDot);
HtmlLibrary lib = null;
String[] arr$ = sp;
int len$ = arr$.length;
for (int i$ = 0; i$ < len$ && (lib = mgr.getLibrary(type, (s = arr$[i$]) + libRelPath, true)) == null; ++i$) {
}
if (lib == null) {
log.info("Unable to proxy {}. No such library for {}", (Object)relPath, (Object)libRelPath);
response.setStatus(404);
response.flushBuffer();
return;
}
Boolean allowed = mgr.proxyAllowed(lib.getLibraryPath(), null);
if (allowed == null || !allowed.booleanValue()) {
log.info("Unable to proxy library at {}. Not allowed.", (Object)lib.getPath());
response.setStatus(404);
response.flushBuffer();
return;
}
if (HtmlLibraryServlet.isDebug(request)) {
log.debug("Creating {} debug library for {}", (Object)lib.getType(), (Object)lib.getLibraryPath());
try {
if (lib.getType() == LibraryType.JS) {
HtmlLibraryServlet.createJsDebugScript(lib, request, response, mgr.isDebugEnabled());
} else {
HtmlLibraryServlet.createCssDebugScript(lib, request, response, mgr.isDebugEnabled());
}
log.debug("Created {} debug library for {}", (Object)lib.getType(), (Object)lib.getLibraryPath());
}
catch (Exception e) {
log.error("Cannot create library for {}", (Object)request.getRequestURI(), (Object)e);
response.sendError(404);
}
} else {
boolean minified = false;
if (firstDot < lastDot) {
String selectorString = relPath.substring(firstDot + 1, lastDot);
String[] suffixSelectors = Text.explode((String)selectorString, (int)46);
minified = "min".equals(suffixSelectors[0]);
}
mgr.send((HtmlLibraryImpl)lib, request, response, minified);
}
break block47;
}
String libPath = Text.getRelativeParent((String)relPath, (int)1);
boolean isBelowResources = "resources".equals(Text.getName((String)libPath));
Boolean allowed = null;
while (allowed == null && libPath.length() > 0) {
allowed = mgr.proxyAllowed(libPath, sp);
if (allowed != null || !"resources".equals(Text.getName((String)(libPath = Text.getRelativeParent((String)libPath, (int)1))))) continue;
isBelowResources = true;
}
if (allowed == null) {
log.info("Unable to proxy static resources at {}. No below valid library.", (Object)relPath);
response.setStatus(404);
response.flushBuffer();
return;
}
if (!allowed.booleanValue()) {
log.info("Unable to proxy static resources at {}. Proxy disabled by library.", (Object)relPath);
response.setStatus(404);
response.flushBuffer();
return;
}
if (!isBelowResources && !mgr.isDebugEnabled()) {
log.info("Unable to proxy static resources at {}. Not allowed outside resources.", (Object)relPath);
response.setStatus(404);
response.flushBuffer();
return;
}
ResourceMetadata meta = staticResource.getResourceMetadata();
long modifTime = meta.getModificationTime();
if (this.unmodified((HttpServletRequest)request, modifTime)) {
response.setHeader("Cache-Control", "max-age=86400, public");
response.setStatus(304);
return;
}
InputStream is = (InputStream)staticResource.adaptTo(InputStream.class);
if (is == null) {
log.info("Resource at {} is no streamable", (Object)staticResource.getPath());
response.setStatus(404);
response.flushBuffer();
return;
}
try {
String encoding;
String ct;
String contentType;
long length = meta.getContentLength();
if (length >= 0) {
response.setHeader("Content-Length", String.valueOf(length));
}
response.setHeader("Cache-Control", "max-age=86400, public");
if (modifTime > 0) {
response.setDateHeader("Last-Modified", modifTime);
}
if (((contentType = meta.getContentType()) == null || "application/octet-stream".equals(contentType)) && (ct = this.getServletContext().getMimeType(relPath)) != null) {
contentType = ct;
}
if (contentType != null) {
response.setContentType(contentType);
}
if ((encoding = meta.getCharacterEncoding()) != null) {
response.setCharacterEncoding(encoding);
}
IOUtils.copy((InputStream)is, (OutputStream)response.getOutputStream());
}
finally {
IOUtils.closeQuietly((InputStream)is);
}
}
catch (RepositoryException e) {
log.error("Error while accessing repository", (Throwable)e);
response.setStatus(500);
response.flushBuffer();
}
finally {
if (session != null) {
session.logout();
}
}
}
}
private static Resource resolve(ResourceResolver resolver, String[] sp, String relPath) {
for (String s : sp) {
Resource r = resolver.getResource(s + relPath);
if (r == null) continue;
return r;
}
return null;
}
private boolean unmodified(HttpServletRequest request, long modifTime) {
if (modifTime > 0) {
long modTime = modifTime / 1000;
long ims = request.getDateHeader("If-Modified-Since") / 1000;
return modTime <= ims;
}
return false;
}
protected void bindHMgr(HtmlLibraryManager htmlLibraryManager) {
this.hMgr = htmlLibraryManager;
}
protected void unbindHMgr(HtmlLibraryManager htmlLibraryManager) {
if (this.hMgr == htmlLibraryManager) {
this.hMgr = null;
}
}
protected void bindRepository(SlingRepository slingRepository) {
this.repository = slingRepository;
}
protected void unbindRepository(SlingRepository slingRepository) {
if (this.repository == slingRepository) {
this.repository = null;
}
}
protected void bindResolverFactory(JcrResourceResolverFactory jcrResourceResolverFactory) {
this.resolverFactory = jcrResourceResolverFactory;
}
protected void unbindResolverFactory(JcrResourceResolverFactory jcrResourceResolverFactory) {
if (this.resolverFactory == jcrResourceResolverFactory) {
this.resolverFactory = null;
}
}
}