Issues while configuring the API Subscription BPS WSO2 - wso2

Question

So, i've my WSO2 BPS 3.6.0 configured to support SSL and a custom hostname i.e. mydomain.domain.com:9445 etc. and i'm trying to implement the API Subscription Workflow by following this documentation.
Now i've performed the following steps:
set the offset of wso2 bps to 2 and it is running fine with port: 9445
edited the wsa:Address tag in bothSubscriptionService.epr and SubscriptionCallbackService.epr located in API-M_HOME/business-processes/epr
as the bps server had a customized hostname instead of localhost (not sure if performing this step was right)
SubscriptionService.epr
SubscriptionCallBackService.epr
copy-pasted the epr folder from API-M_HOME/business-processes/epr to BPS_HOME/repository/conf/epr
Added the required BPEL package and human task accordingly
Navigated to the carbon console from APIM and edited the workflow-extensions.xml, here's how it looks like
set the TaskCoordinationEnabled tag of b4p-cordination-config.xml to true located in BPS_Home\repository\conf
Consider OTHER required configurations:
At API Manager End:
site.json file located at APIM_Home\repository\deployment\server\jaggeryapps\admin\site\conf
{
"theme": {
"base": "wso2",
"subtheme": "modern"
},
"context": "/admin",
"request_url": "READ_FROM_REQUEST",
"tasksPerPage": 10,
"allowedPermission": "/permission/admin/manage/apim_admin",
"workflows": {
"workFlowServerURL": "https://mydomain.domain.com:9445/services/",
},
"ssoConfiguration": {
"enabled": "false",
"issuer": "API_WORKFLOW_ADMIN",
"identityProviderURL": "https://localhost:9443/samlsso",
"keyStorePassword": "",
"identityAlias": "",
"keyStoreName": "",
"verifyAssertionValidityPeriod": "true",
"audienceRestrictionsEnabled": "true",
"responseSigningEnabled": "true",
"assertionSigningEnabled": "true",
"assertionEncryptionEnabled": "false",
"idpInit" : "false",
"idpInitSSOURL" : "https://localhost:9443/samlsso?spEntityID=API_WORKFLOW_ADMIN",
"externalLogoutPage" : "https://localhost:9443/samlsso?slo=true"
},
"reverseProxy": {
"enabled": false,
// values true , false , "auto" - will look for X-Forwarded-* headers
"host": "sample.proxydomain.com",
// If reverse proxy do not have a domain name use IP
"context": ""
//"regContext":"" // Use only if different path is used for registry
}
}
the workflowconfiguration in api-manager.xml
At BPS end:
carbon.xml
Issue: Now whenever a user navigates to APIM Store and subscribes to any API, the subscription request is listed at the APIM Admin console. When i select APPROVE from the provided ddl and click on the COMPLETE button, the record vanishes. However, this is the error that i see at WSO2's CMD windows:
APIM's cmd window
[2017-11-09 00:13:17,022] INFO - TimeoutHandler This engine will
expire all cal lbacks after GLOBAL_TIMEOUT: 120 seconds, irrespective
of the timeout action, af ter the specified or optional timeout
[2017-11-09 00:13:17,164] ERROR - TargetHandler I/O error: Host name
verificatio n failed for host : localhost javax.net.ssl.SSLException:
Host name verification failed for host : localhost
at org.apache.synapse.transport.http.conn.ClientSSLSetupHandler.verify(C
lientSSLSetupHandler.java:171)
at org.apache.http.nio.reactor.ssl.SSLIOSession.doHandshake(SSLIOSession
.java:308)
at org.apache.http.nio.reactor.ssl.SSLIOSession.isAppInputReady(SSLIOSes
sion.java:410)
at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(Abstra
ctIODispatch.java:119)
at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor
.java:159)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(Abstr
actIOReactor.java:338)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(Abst
ractIOReactor.java:316)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIO
Reactor.java:277)
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.
java:105)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.
run(AbstractMultiworkerIOReactor.java:586)
at java.lang.Thread.run(Thread.java:745)
[2017-11-09 00:13:17,188] WARN - EndpointContext Endpoint : AnonymousEndpoint w
ith address
https://localhost:9443/store/site/blocks/workflow/workflow-listener/
ajax/workflow-listener.jag will be marked SUSPENDED as it failed
[2017-11-09 00:13:17,193] WARN - EndpointContext Suspending endpoint
: Anonymou sEndpoint with address
https://localhost:9443/store/site/blocks/workflow/workflo
w-listener/ajax/workflow-listener.jag - current suspend duration is :
30000ms - Next retry after : Thu Nov 09 00:13:47 EST 2017
[2017-11-0900:13:17,201] INFO - LogMediator STATUS = Executing default 'fault'
sequence, ERROR_CODE = 101500, ERROR_MESSAGE = Error in Sender
[2017-11-09 00:14:17,238] INFO - SourceHandler Writer null when
calling informW riterError [2017-11-09 00:14:17,238] WARN -
SourceHandler Connection time out after reques t is read:
http-incoming-1 Socket Timeout : 60000 Remote Address : /10.10.30.130
:49249
[2017-11-09 00:14:24,671] ERROR - AxisEngine The endpoint
reference (EPR) for th e Operation not found is
/services/WorkflowCallbackService and the WSA Action = null. If this
EPR was previously reachable, please contact the server administra
tor. org.apache.axis2.AxisFault: The endpoint reference (EPR) for the
Operation not f ound is /services/WorkflowCallbackService and the WSA
Action = null. If this EPR was previously reachable, please contact
the server administrator.
at org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPha
se.java:102)
at org.apache.axis2.engine.Phase.invoke(Phase.java:329)
at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:261)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:167)
at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEn
closingRESTHandler(ServerWorker.java:325)
at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.j
ava:158)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(Native
WorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
at java.lang.Thread.run(Thread.java:745) [2017-11-09 00:14:24,673] ERROR - ServerWorker Error processing GET request for :
/services/WorkflowCallbackService org.apache.axis2.AxisFault: The
endpoint reference (EPR) for the Operation not f ound is
/services/WorkflowCallbackService and the WSA Action = null. If this
EPR was previously reachable, please contact the server
administrator.
at org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPha
se.java:102)
at org.apache.axis2.engine.Phase.invoke(Phase.java:329)
at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:261)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:167)
at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEn
closingRESTHandler(ServerWorker.java:325)
at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.j
ava:158)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(Native
WorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
at java.lang.Thread.run(Thread.java:745)
BPS's cmd window:
[2017-11-09 00:14:16,738] ERROR {org.wso2.carbon.bpel.core.ode.integration.Partn erService} - Error
sending message to Axis2 for ODE mex {PartnerRoleMex#hqejbhc
nphrcr2a32g83oh [PID
{http://workflow.subscription.apimgt.carbon.wso2.org}Subscr
iptionApprovalWorkFlowProcess-1] calling
org.apache.ode.bpel.epr.WSAEndpoint#705 fc38f.resumeEvent(...) Status
REQUEST} org.apache.axis2.AxisFault: Read timed out
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.jav
a:199)
at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessa
geWithCommons(CommonsHTTPTransportSender.java:451)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(Com
monsHTTPTransportSender.java:278)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
at org.apache.axis2.description.OutOnlyAxisOperationClient.executeImpl(O
utOnlyAxisOperation.java:297)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:
149)
at org.wso2.carbon.bpel.core.ode.integration.utils.AxisServiceUtils.invo
keService(AxisServiceUtils.java:323)
at org.wso2.carbon.bpel.core.ode.integration.PartnerService.invoke(Partn
erService.java:333)
at org.wso2.carbon.bpel.core.ode.integration.BPELMessageExchangeContextI
mpl.invokePartner(BPELMessageExchangeContextImpl.java:43)
at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(BpelRuntimeC
ontextImpl.java:897)
at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:130)
at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:4
51)
at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:139)
at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(BpelRuntime
ContextImpl.java:1002)
at org.apache.ode.bpel.engine.PartnerLinkMyRoleImpl.invokeInstance(Partn
erLinkMyRoleImpl.java:250)
at org.apache.ode.bpel.engine.BpelProcess$1.invoke(BpelProcess.java:288)
at org.apache.ode.bpel.engine.BpelProcess.invokeProcess(BpelProcess.java
:224)
at org.apache.ode.bpel.engine.BpelProcess.invokeProcess(BpelProcess.java
:279)
at org.apache.ode.bpel.engine.BpelProcess.handleJobDetails(BpelProcess.j
ava:434)
at org.apache.ode.bpel.engine.BpelEngineImpl.onScheduledJob(BpelEngineIm
pl.java:558)
at org.apache.ode.bpel.engine.BpelServerImpl.onScheduledJob(BpelServerIm
pl.java:467)
at org.apache.ode.scheduler.simple.SimpleScheduler$RunJob$1.call(SimpleS
cheduler.java:633)
at org.apache.ode.scheduler.simple.SimpleScheduler$RunJob$1.call(SimpleS
cheduler.java:627)
at org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(Simpl
eScheduler.java:298)
at org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(Simpl
eScheduler.java:253)
at org.apache.ode.scheduler.simple.SimpleScheduler$RunJob.call(SimpleSch
eduler.java:627)
at org.apache.ode.scheduler.simple.SimpleScheduler$RunJob.call(SimpleSch
eduler.java:611)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
at java.lang.Thread.run(Thread.java:745) Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:150)
at java.net.SocketInputStream.read(SocketInputStream.java:121)
at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
at sun.security.ssl.InputRecord.read(InputRecord.java:503)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:961)
at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:918)
at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
at java.io.BufferedInputStream.read(BufferedInputStream.java:265)
at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:
78)
at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106
)
at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.
java:1116)
at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$Http
ConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1413)
at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMetho
dBase.java:1973)
at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodB
ase.java:1735)
at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.j
ava:1098)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(Htt
pMethodDirector.java:398)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMe
thodDirector.java:171)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.jav
a:397)
at org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(Abst
ractHTTPSender.java:659)
at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.jav
a:195)
... 34 more
What could be the issue here? Any idea? do let me know. Thanks
Note that the bps workflow for API STATE CHANGE works just fine with the same configurations

Answer 1

Please note, that you are using calls with HTTPS with specific domain names
Host name verification failed for host : localhost at org.apache.synapse.transport.http.conn.ClientSSLSetupHandler.verify(ClientSSLSetupHandler.java:171) at org.apache.http.nio.reactor.ssl.SSLIOSession.doHandshake(SSLIOSession .java:308)
the certificate provided is CN=localhost, so indeed the host verification fails
what you can do about it
simplest way is switching to http when on secure network (behind firewall, vpn, ..)
update SSL certificates of BPS and APIM to match their hostnames and they have to trust each others certificate (or certificate issuer)
disable SSL hostname validation in axis2.xml (I do not recommend it, good for DEV, VERY BAD for PROD) - set <parameter name="HostnameVerifier">AllowAll</parameter>