I'm trying to get JSF 2.2 to run on GAE 1.8.7. I'm following this tutorial: http://java.wildstartech.com/Java-Platform-Enterprise-Edition/JavaServer-Faces/javaserver-faces-22/configuring-jsf-22-to-run-on-the-google-app-engine-using-eclipse
When I run it locally, then the index.jsf page renders well.
However, when I deploy it to GAE, while normal servlets run well, the index.jsf shows a HTTP 505 error with the following in the GAE logs:
2013-11-15 11:23:42.578 /index.jsf 500 533ms 0kb Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36 module=default version=1 W
2013-11-15 11:23:42.573 /index.jsf java.lang.NoSuchMethodError: javax.el.ELContext.notifyBeforeEvaluation(Ljava/lang/String;)V
at com.sun.el.lang.EvaluationContext.notifyBef
2013-11-15 11:23:42.577 Uncaught exception from servlet java.lang.NoSuchMethodError: javax.el.ELContext.notifyBeforeEvaluation(Ljava/lang/String;)V
at com.sun.el.lang.Evalua
I'm using javax-faces.2.2.0.jar and javax-el.3.0.0.jar from maven repository.
If you don't really need the EL 3.x features, then I would suggest moving to a 2.x version and then specifying it in your web.xml file as a context parameter:
<context-param>
<param-name>com.sun.faces.expressionFactory</param-name>
<param-value>com.sun.el.ExpressionFactoryImpl</param-value>
</context-param>
The above declaration will ensure that you are using the EL version that is shipped along with your code and not the one provided by the GAE/J container.
Don't forget to include the EL implementation jar as well in your libraries.
p.s.: If it is of any help, I have a starter template on GitHub that can help you get started.
Related
I am using mod_security with CRS 3.3.0 on top of Apache 2.4. During a recent L7 DDoS attack, I recognized that certain attacks using HTTP/1.* were correctly block with HTTP 403 based on geolookup and having the country code listed in tx.high_risk_country_codes of the CRS config. However, a request from the identical IP was not blocked when using HTTP/2 as protocol. Any idea of a configuration setting specific for REQUEST-910-IP-REPUTATION.conf only enabled for protocols HTTP/1.* in the default rule set? For the time being, I restricted allowed protocols to HTTP 1.1 for affected site make mod_security working.
Some examples from access log:
<HOST>:443 XXX.XXX.XXX.XXX - - [03/Aug/2022:00:37:49 +0200] "GET /?s HTTP/1.1" 403 5636 "https://<HOST>/?s" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36"
<HOST>:443 XXX.XXX.XXX.XXX - - [03/Aug/2022:00:43:12 +0200] "GET /?s HTTP/2.0" 301 392 "https:///?s" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36"
Thanks in advance!
SCHAPPY
CRS dev-on-duty here. There is no configuration setting specific for REQUEST-910-IP-REPUTATION.conf that is only enabled for protocols HTTP/1.*.
I have no idea why the rule 910100 does not work for HTTP/2.
But do you have the possibility to enable debug logs (better not in production) with SecDebugLog and SecDebugLogLevel? Maybe you'll get more insights this way?
If you can't see and solve the problem with the modsec_debug.log, you can open an issue in the Core Rule Set GitHub project. We're happy to help!
When I tried to run GWT quick start tutorial I got this error message!
How can I fix this issue?
P.S.
I already installed GWT Developer plugin for Firefox 1.23
I installed eclipse from ubuntu 13.04 repository (version 3.8.1)
I already GWT from ubuntu 13.04 repository (version 2.4.0)
00:27:29.230 [ERROR] [hellostupid] Failed to load module 'hellostupid' from user agent 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0' at localhost:40544
java.lang.NullPointerException: null
at com.google.gwt.dev.javac.JsniChecker.getSuppressedWarnings(JsniChecker.java:565)
at com.google.gwt.dev.javac.JsniChecker$JsniDeclChecker.visit(JsniChecker.java:135)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1233)
at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:679)
at com.google.gwt.dev.javac.JsniChecker.check(JsniChecker.java:615)
at com.google.gwt.dev.javac.JsniChecker.check(JsniChecker.java:559)
at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater$UnitProcessorImpl.process(CompilationStateBuilder.java:83)
at com.google.gwt.dev.javac.JdtCompiler$CompilerImpl.process(JdtCompiler.java:251)
at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:464)
at com.google.gwt.dev.javac.JdtCompiler.doCompile(JdtCompiler.java:710)
at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater.compile(CompilationStateBuilder.java:235)
at com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom(CompilationStateBuilder.java:447)
at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:370)
at com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:360)
at com.google.gwt.dev.DevModeBase$UiBrowserWidgetHostImpl.createModuleSpaceHost(DevModeBase.java:110)
at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:197)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:525)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:363)
at java.lang.Thread.run(Thread.java:724)
I was facing the same issue , you can try this if you are getting this problem -
1.[ERROR] [mysecondproj] - Unable to initialize static dispatcher
2.[ERROR] [mysecondproj] - Failed to load module 'mysecondproj' from user agent 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1712.2 Safari/537.36' at 127.0.0.1:63405
http://stackoverflow.com/questions/29411048/gwt-starting-sample-project
I have build it from eclipse and ran on development server, it works, when I deploy it on app engine from eclipse, I got this following error, any idea why?
Very first time it went up to oauth2 dance, but it did not succeed, I have fixed redirect-url on api console, then, localhost worked, I did deployed again onto app engine, but it did not work, I got this error:
Error: 500 Server Error
The server encountered an error and could not complete your request.
If the problem persists, please report your problem and mention this error message and the query that caused it.
Error log in App engine console:
2013-06-07 01:59:36.619 /oauth2callback?code={removed now} 500 2416ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.110 Safari/537.36
68.5.238.205 - - [07/Jun/2013:01:59:36 -0700] "GET /oauth2callback?code={removed now} HTTP/1.1" 500 0 - "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.110 Safari/537.36" "{my appid }.appspot.com" ms=2416 cpu_ms=1581 cpm_usd=0.000087 app_engine_release=1.8.0 instance=00c61b117c2c977fac245e8480eff747e75eb6
I 2013-06-07 01:59:34.228
com.google.glassware.AuthFilter doFilter: Skipping auth check during auth flow
I 2013-06-07 01:59:34.230
com.google.glassware.AuthServlet doGet: Got a code. Attempting to exchange for access token.
I 2013-06-07 01:59:35.427
com.google.glassware.AuthServlet doGet: Code exchange worked. User 115370471277937689999 logged in.
W 2013-06-07 01:59:36.614
Error for /oauth2callback
java.lang.NoClassDefFoundError: com/google/common/collect/Lists
at com.google.glassware.NewUserBootstrapper.bootstrapNewUser(NewUserBootstrapper.java:54)
at com.google.glassware.AuthServlet.doGet(AuthServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
This looks like a bug in App Engine and the Google OAuth endpoints. It's being tracked in the Glass issue tracker. You can star that issue to receive updates as the investigation proceeds.
In the mean time, check out the .NET and PHP quick starts. They're working great.
I'm trying to run the GWT 2.4 sample app "MobileWebApp". I get a 500 "No Realm" error when I try to run the app in dev mode through Eclipse.
I understand this is an authentication problem.
I'm not familiar with Google App Engine or Jetty but from looking at the web.xml I can see there is a servlet filter where it is using the appengine UserService to presumably redirect the user to Google for authentication.
I'm using:
Eclipse 3.7 (Indigo SR1)
Google Plugin for Eclipse 2.4
m2eclipse
I'm including an excerpt from the web.xml below. I'm not sure what other info would be helpful in diagnosing this problem.
<security-constraint>
<display-name>
Redirect to the login page if needed before showing
the host html page.
</display-name>
<web-resource-collection>
<web-resource-name>Login required</web-resource-name>
<url-pattern>/MobileWebApp.html</url-pattern>
</web-resource-collection>
<auth-constraint>
<role-name>*</role-name>
</auth-constraint>
</security-constraint>
<filter>
<filter-name>GaeAuthFilter</filter-name>
<!--
This filter demonstrates making GAE authentication
services visible to a RequestFactory client.
-->
<filter-class>com.google.gwt.sample.gaerequest.server.GaeAuthFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>GaeAuthFilter</filter-name>
<url-pattern>/gwtRequest/*</url-pattern>
</filter-mapping>
Below is the output in the Eclipse console:
[WARN] Request /MobileWebApp.html failed - no realm
[ERROR] 500 - GET /MobileWebApp.html?gwt.codesvr=127.0.0.1:9997 (127.0.0.1) 1401 bytes
Request headers
Host: 127.0.0.1:8888
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection: keep-alive
Response headers
Content-Type: text/html; charset=iso-8859-1
Content-Length: 1401
Many thanks for any helpful advice!
Edit on 11/11/11: I added Jetty tag since it seems relevant to this problem.
If your very first request fails, just getting the /MobileWebApp.html page, then it probably isn't an authentication problem. Do you have GAE enabled for that project (not only GWT)? That might be one issue.
I read somewhere that there's two ways of debugging an app in Eclipse, one is with run as/webapp, and forgot which was the other one (I don't use Eclipse). One of them works and another doesn't.
If that doesn't work, you can try replacing the built-in jetty:
add a GWT param: -server com.google.appengine.tools.development.gwt.AppEngineLauncher
VM param: -javaagent:/path_to/appengine-agent.jar
And the last option is with -noserver, but then you wont be able to debug the server-side code, just the client-side GWT stuff: first start jetty with mvn jetty:run and then debug in Eclipse with -noserver GWT param.
I had the same problem. Finally I noticed that when I switched to a newer version of Appengine, the older Appengine libraries remained in the WEB-INF/lib along with the new ones.
Removing them solved the problem.
I am getting the following error in App Engine after I deployed it. Does anybody know the reason? It's causing an error page sometimes. It seems simplejson is the cause...
According to http://code.google.com/status/appengine/ everyting should be working accordingly.
09-20 11:03AM 56.027 / 500 55902ms 240cpu_ms 0kb Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; nl-nl) AppleWebKit/533.18.1 (KHTML, like Gecko) Version/5.0.2 Safari/533.18.5,gzip(gfe)
- - [20/Sep/2010:11:04:51 -0700] "GET / HTTP/1.1" 500 0 - "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; nl-nl) AppleWebKit/533.18.1 (KHTML, like Gecko) Version/5.0.2 Safari/533.18.5,gzip(gfe)" "" ms=55903 cpu_ms=240 api_cpu_ms=0 cpm_usd=0.006723 loading_request=1 pending_ms=1266
E 09-20 11:04AM 51.915
<class 'google.appengine.runtime.DeadlineExceededError'>:
Traceback (most recent call last):
File "/base/data/home/apps//7.344918194765199957/main.py", line 11, in <module>
from logic import home, program, image, searchhandler, twitter, sitemap, feed
File "/base/data/home/apps/7.344918194765199957/logic/home.py", line 14, in <module>
from django.utils import simplejson
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/utils/simplejson/__init__.py", line 95, in <module>
from django.utils.simplejson.decoder import JSONDecoder
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/utils/simplejson/decoder.py", line 6, in <module>
from django.utils.simplejson.scanner import Scanner, pattern
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/utils/simplejson/scanner.py", line 3, in <module>
"""
I 09-20 11:04AM 51.924
This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application.
This is the error that the page will show:
Error: Server Error
The server encountered an error and could not complete your request.
If the problem persists, please report your problem and mention this error message and the query that caused it.
It seems this is not the only error causing the 500 error. Because most of the time this seems to be the cause:
09-20 11:37AM 18.229 /ohohcherso.html 500 11007ms 0cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.62 Safari/534.3,gzip(gfe),gzip(gfe)
94.209.194.233 - sammiestoel [20/Sep/2010:11:37:29 -0700] "GET /ohohcherso.html HTTP/1.1" 500 0 "http://www.tweetstream.nl/index.html" "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.62 Safari/534.3,gzip(gfe),gzip(gfe)" "www.tweetstream.nl" ms=11008 cpu_ms=0 api_cpu_ms=0 cpm_usd=0.000148
W 09-20 11:37AM 29.237
Request was aborted after waiting too long to attempt to service your request. This may happen sporadically when the App Engine serving cluster is under unexpectedly high or uneven load. If you see this message frequently, please contact the App Engine team.
Here's your problem:
<class 'google.appengine.runtime.DeadlineExceededError'>
Your page is too slow, it should load within 30 seconds. Otherwise the App Engine will kill it.
http://code.google.com/appengine/docs/python/runtime.html#The_Request_Timer
It seems the real problem was there was a """ in the file as some comments, which created the 500 error. The app is working smooth now. I'm happy I found it at last.
So if you get this error first check if you made comments in a bad way!