Re: OM 3.1.0 Fails to Launch Applet in Reverse Proxy

Susheel Jalali Tue, 01 Mar 2016 12:02:12 -0800

Dear OpenMeetings Developers and Maxim,

Here is our input regarding the screensharing error:

Administration -> Configuration -->application.base.url =https://<Our_FQDN>/openmeetings

Still, when we launch public.jnlp, it gives “Unable to launchopenmeetings screensharing applet” in the dialog popup. The error isbelow. We are using HAProxy for reverse proxy. The configuration (seebelow) simply replaces an external https URL with an internal http.


Environment: CentOS 6.5, MySQL and Java 1.7_u67.

-------

Error
Exception

com.sun.deploy.net.FailedDownloadException: Unable to load resource:https://<OurFQDN>/<Reverse_Proxy_sub-domain>/screenshare/openmeetings-screenshare-3.1.0-SNAPSHOT.jar


Wrapped Exception

java.io.IOException: Server returned HTTP response code: 503 for URL:https://<OurFQDN>/<Reverse_Proxy_sub-domain>/screenshare/openmeetings-screenshare-3.1.0-SNAPSHOT.jar


-------

Reverse proxy configuration

backend test-backend

    rspirep ^(Location:)\ http://(.*)$   Location:\ https://\2

    server Test <Internal_Server_IP:5080 cookie om-310 check

== == ==
JNLP Screensharing error.txt
++++++++++++++++++++++

<?xml version='1.0' encoding='utf-8'?>
<!------- Omitting the standard Apache  license text, which please
consider implied ----- -->

<jnlp spec="1.0+" codebase="https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare">
    <information>
        <title>Openmeetings Screen Sharing applet</title>
        <vendor>OpenMeetings</vendor>
        <homepage>http://apache.org</homepage>
        <icon href="icon.jpg" />
        <icon kind="splash" href="splashicon.jpg" />
        <description>Openmeetings Screen Sharing applet</description>

<description kind="short">A File to grab a screen and send itto a Server</description>

        <offline-allowed/>
    </information>
    <security>
        <all-permissions/>
    </security>
    <resources>
        <j2se version='1.7+'/>

    <jar href="openmeetings-screenshare-3.1.0-SNAPSHOT.jar" main="true"/>
    <jar href="red5-client-1.0.6-RELEASE.jar"/>
    <jar href="red5-server-common-1.0.6-RELEASE.jar"/>
    <jar href="commons-collections-3.2.1.jar"/>
    <jar href="quartz-2.2.1.jar"/>
    <jar href="red5-io-1.0.6-RELEASE.jar"/>
    <jar href="slf4j-api-1.7.9.jar"/>
    <jar href="logback-core-1.1.2.jar"/>
    <jar href="logback-classic-1.1.2.jar"/>
    <jar href="bcprov-jdk15on-1.52.jar"/>
    <jar href="commons-beanutils-1.9.2.jar"/>
    <jar href="commons-codec-1.9.jar"/>
    <jar href="httpcore-4.4.jar"/>
    <jar href="httpclient-4.4.jar"/>
    <jar href="commons-lang3-3.3.2.jar"/>
    <jar href="jcl-over-slf4j-1.7.9.jar"/>
    <jar href="spring-beans-4.1.7.RELEASE.jar"/>
    <jar href="spring-context-4.1.7.RELEASE.jar"/>
    <jar href="ehcache-core-2.5.0.jar"/>
    <jar href="mina-core-2.0.8.jar"/>
    <jar href="spring-core-4.1.7.RELEASE.jar"/>

    </resources>
    <application-desc
main-class='org.apache.openmeetings.screen.webstart.CoreScreenShare'>
        <argument>rtmp://https://<Our
FQDN:1935>/<Reverse_Proxy_sub-domain>/5</argument>
        <argument>1</argument>
<argument>416d2ecdf0380423b86e4b183c26a5b5</argument>
        <argument><![CDATA[Desktop sharer;Click Start to publish your
screen;Start sharing;Pause sharing;Select your screen area:;Change
width;Change height;X-Offset;Y-Offset;Width:;Height:;Connection was closed
by server;Show mouse position to viewers;Recording;You may record and share
your screen at the same time. To enable others to see your screen just hit
the start button on the top.;Start recording;Stop recording;Close;Quality
of the screen share:;Very high quality;High quality;Medium quality;Low
quality;Publish;Start Publish;Stop Publish;Host;Publish App;Publish
Id;Reduce the width of the SharingScreen before you try to move it
left;Reduce the height of the SharingScreen before you try to move it
bottom;Reduce the x of the SharingScreen before you try to make it
wider;Reduce the y of the SharingScreen before you try to make it
higher;Fill these settings stream your screen data to 3th party providers
like justin.tv;Please start Screen sharing to be able to publish
it;Moderator permission required to start recording;Notify on
disconnect;Security;Allow Remote Control (during screen
sharing)]]></argument>
        <argument>1</argument>
        <argument>10</argument>
        <argument>true</argument>
        <argument>true</argument>
        <argument>true</argument>
        <argument>true</argument>
        <argument>--dummy--</argument>
        <argument>--dummy--</argument>
    </application-desc>
</jnlp>

Exception
com.sun.deploy.net.FailedDownloadException: Unable to load resource:
https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare/openmeetings-screenshare-3.1.0-SNAPSHOT.jar
    at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.downloadResource(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
    at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)


Wrapped Exception
java.io.IOException: Server returned HTTP response code: 503 for URL:
https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare/openmeetings-screenshare-3.1.0-SNAPSHOT.jar
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown
Source)
    at sun.net.www.protocol.http.HttpURLConnection.access$200(Unknown
Source)
    at sun.net.www.protocol.http.HttpURLConnection$9.run(Unknown Source)

    at sun.net.www.protocol.http.HttpURLConnection$9.run(Unknown Source)

    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessController.doPrivilegedWithCombiner(Unknown
Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown
Source)
    at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown

Source)
    at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
    at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
    at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
    at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.downloadResource(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
    at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
== == == ==

public_5.jnlp
+++++++++

<?xml version='1.0' encoding='utf-8'?>
<!------- Omitting the standard Apache license text, which please consider
implied ----- -->

<jnlp spec="1.0+" codebase="https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare">
    <information>
        <title>Openmeetings Screen Sharing applet</title>
        <vendor>OpenMeetings</vendor>
<homepage>http://apache.org</homepage>
        <icon href="icon.jpg" />
        <icon kind="splash" href="splashicon.jpg" />
        <description>Openmeetings Screen Sharing applet</description>
        <description kind="short">A File to grab a screen and send it to a
Server</description>
        <offline-allowed/>
    </information>
    <security>
        <all-permissions/>
    </security>
    <resources>
        <j2se version='1.7+'/>

    <jar href="openmeetings-screenshare-3.1.0-SNAPSHOT.jar" main="true"/>
    <jar href="red5-client-1.0.6-RELEASE.jar"/>
    <jar href="red5-server-common-1.0.6-RELEASE.jar"/>
    <jar href="commons-collections-3.2.1.jar"/>
    <jar href="quartz-2.2.1.jar"/>
    <jar href="red5-io-1.0.6-RELEASE.jar"/>
    <jar href="slf4j-api-1.7.9.jar"/>
    <jar href="logback-core-1.1.2.jar"/>
    <jar href="logback-classic-1.1.2.jar"/>
    <jar href="bcprov-jdk15on-1.52.jar"/>
    <jar href="commons-beanutils-1.9.2.jar"/>
    <jar href="commons-codec-1.9.jar"/>
    <jar href="httpcore-4.4.jar"/>
    <jar href="httpclient-4.4.jar"/>
    <jar href="commons-lang3-3.3.2.jar"/>
    <jar href="jcl-over-slf4j-1.7.9.jar"/>
    <jar href="spring-beans-4.1.7.RELEASE.jar"/>
    <jar href="spring-context-4.1.7.RELEASE.jar"/>
    <jar href="ehcache-core-2.5.0.jar"/>
    <jar href="mina-core-2.0.8.jar"/>
    <jar href="spring-core-4.1.7.RELEASE.jar"/>

    </resources>
    <application-desc
main-class='org.apache.openmeetings.screen.webstart.CoreScreenShare'>
        <argument>rtmp://https://<Our
FQDN:1935>/<Reverse_Proxy_sub-domain>/5</argument>
        <argument>1</argument>
<argument>ef0088e7866cdc9bac53ac294eb6d2e1</argument>
        <argument><![CDATA[Desktop sharer;Click Start to publish your
screen;Start sharing;Pause sharing;Select your screen area:;Change
width;Change height;X-Offset;Y-Offset;Width:;Height:;Connection was closed
by server;Show mouse position to viewers;Recording;You may record and share
your screen at the same time. To enable others to see your screen just hit
the start button on the top.;Start recording;Stop recording;Close;Quality
of the screen share:;Very high quality;High quality;Medium quality;Low
quality;Publish;Start Publish;Stop Publish;Host;Publish App;Publish
Id;Reduce the width of the SharingScreen before you try to move it
left;Reduce the height of the SharingScreen before you try to move it
bottom;Reduce the x of the SharingScreen before you try to make it
wider;Reduce the y of the SharingScreen before you try to make it
higher;Fill these settings stream your screen data to 3th party providers
like justin.tv;Please start Screen sharing to be able to publish
it;Moderator permission required to start recording;Notify on
disconnect;Security;Allow Remote Control (during screen
sharing)]]></argument>
        <argument>1</argument>
        <argument>10</argument>
        <argument>true</argument>
        <argument>true</argument>
        <argument>true</argument>
        <argument>true</argument>
        <argument>--dummy--</argument>
        <argument>--dummy--</argument>
    </application-desc>
</jnlp>

= == == ==


Thank you.

Sincerely,

Susheel Jalali
Coscend Communications Solutions
www.Coscend.com
----------------------------------------------------------------

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On 02/25/16 15:01, Maxim Solodovnik wrote:

Hello Susheel,

3.1.0 uses config setting "application.base.url" to set "codebase=" URL
you can check the docs here:
http://openmeetings.apache.org/GeneralConfiguration.html

please send more detailed reverse proxy configuration if changing this URL

will not help

On Sat, Feb 20, 2016 at 2:31 AM, Susheel Jalali <[email protected]>
wrote:

Dear OpenMeetings Developers,

We would appreciate your insights into our screensharing tests in OM
3.1.0.  When we run the downloaded public_#.jnlp file (see below), we get
the following test results where first two succeed, and third one fails
(Exception Log included below). Application.base.url settings were changed
suitably for each test case:

    (1)Within LAN (using local DNS URL):  works fine.

    (2)From WAN (using <FQDN:5080> in URL):  works fine.

    (3)From WAN (using <FQDN> with reverse proxy):  it gives “*Unable
    *to launch openmeetings screensharing applet” in the dialog popup.

OM 3.0.6 works fine in the same environment.

OM 3.0.7 worked fine.  But while downloading screensharing applet it used
to expose the port number <FQDN:5080> even in reverse proxy scenario.

-------------

Current environment:

OM 3.1.0
Server 1: CentOS 6.5, MySQL
Server 2: CentOS 7, MariaDB
Java 7 patch 76

== == ==

JNLP Screensharing error.txt
++++++++++++++++++++++

<?xml version='1.0' encoding='utf-8'?>
<!------- Omitting the standard Apache  license text, which please
consider implied ----- -->

<jnlp spec="1.0+" codebase="https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare">
     <information>
         <title>Openmeetings Screen Sharing applet</title>
         <vendor>OpenMeetings</vendor>
         <homepage>http://apache.org</homepage>
         <icon href="icon.jpg" />
         <icon kind="splash" href="splashicon.jpg" />
         <description>Openmeetings Screen Sharing applet</description>
         <description kind="short">A File to grab a screen and send it to a
Server</description>
         <offline-allowed/>
     </information>
     <security>
         <all-permissions/>
     </security>
     <resources>
         <j2se version='1.7+'/>

     <jar href="openmeetings-screenshare-3.1.0-SNAPSHOT.jar" main="true"/>
     <jar href="red5-client-1.0.6-RELEASE.jar"/>
     <jar href="red5-server-common-1.0.6-RELEASE.jar"/>
     <jar href="commons-collections-3.2.1.jar"/>
     <jar href="quartz-2.2.1.jar"/>
     <jar href="red5-io-1.0.6-RELEASE.jar"/>
     <jar href="slf4j-api-1.7.9.jar"/>
     <jar href="logback-core-1.1.2.jar"/>
     <jar href="logback-classic-1.1.2.jar"/>
     <jar href="bcprov-jdk15on-1.52.jar"/>
     <jar href="commons-beanutils-1.9.2.jar"/>
     <jar href="commons-codec-1.9.jar"/>
     <jar href="httpcore-4.4.jar"/>
     <jar href="httpclient-4.4.jar"/>
     <jar href="commons-lang3-3.3.2.jar"/>
     <jar href="jcl-over-slf4j-1.7.9.jar"/>
     <jar href="spring-beans-4.1.7.RELEASE.jar"/>
     <jar href="spring-context-4.1.7.RELEASE.jar"/>
     <jar href="ehcache-core-2.5.0.jar"/>
     <jar href="mina-core-2.0.8.jar"/>
     <jar href="spring-core-4.1.7.RELEASE.jar"/>

     </resources>
     <application-desc
main-class='org.apache.openmeetings.screen.webstart.CoreScreenShare'>
         <argument>rtmp://https://<Our
FQDN:1935>/<Reverse_Proxy_sub-domain>/5</argument>
         <argument>1</argument>
<argument>416d2ecdf0380423b86e4b183c26a5b5</argument>
         <argument><![CDATA[Desktop sharer;Click Start to publish your
screen;Start sharing;Pause sharing;Select your screen area:;Change
width;Change height;X-Offset;Y-Offset;Width:;Height:;Connection was closed
by server;Show mouse position to viewers;Recording;You may record and share
your screen at the same time. To enable others to see your screen just hit
the start button on the top.;Start recording;Stop recording;Close;Quality
of the screen share:;Very high quality;High quality;Medium quality;Low
quality;Publish;Start Publish;Stop Publish;Host;Publish App;Publish
Id;Reduce the width of the SharingScreen before you try to move it
left;Reduce the height of the SharingScreen before you try to move it
bottom;Reduce the x of the SharingScreen before you try to make it
wider;Reduce the y of the SharingScreen before you try to make it
higher;Fill these settings stream your screen data to 3th party providers
like justin.tv;Please start Screen sharing to be able to publish
it;Moderator permission required to start recording;Notify on
disconnect;Security;Allow Remote Control (during screen
sharing)]]></argument>
         <argument>1</argument>
         <argument>10</argument>
         <argument>true</argument>
         <argument>true</argument>
         <argument>true</argument>
         <argument>true</argument>
         <argument>--dummy--</argument>
         <argument>--dummy--</argument>
     </application-desc>
</jnlp>

Exception
com.sun.deploy.net.FailedDownloadException: Unable to load resource:
https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare/openmeetings-screenshare-3.1.0-SNAPSHOT.jar
     at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.downloadResource(Unknown Source)
     at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
     at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
     at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
     at java.util.concurrent.FutureTask.run(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)


Wrapped Exception
java.io.IOException: Server returned HTTP response code: 503 for URL:
https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare/openmeetings-screenshare-3.1.0-SNAPSHOT.jar
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown
Source)
     at sun.net.www.protocol.http.HttpURLConnection.access$200(Unknown
Source)
     at sun.net.www.protocol.http.HttpURLConnection$9.run(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection$9.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.security.AccessController.doPrivilegedWithCombiner(Unknown
Source)
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown
Source)
     at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown
Source)
     at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
     at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
     at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
     at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.downloadResource(Unknown Source)
     at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
     at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown
Source)
     at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
     at java.util.concurrent.FutureTask.run(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
== == == ==

public_5.jnlp
+++++++++

<?xml version='1.0' encoding='utf-8'?>
<!------- Omitting the standard Apache license text, which please consider
implied ----- -->

<jnlp spec="1.0+" codebase="https://<Our
FQDN>/<Reverse_Proxy_sub-domain>/screenshare">
     <information>
         <title>Openmeetings Screen Sharing applet</title>
         <vendor>OpenMeetings</vendor>
<homepage>http://apache.org</homepage>
         <icon href="icon.jpg" />
         <icon kind="splash" href="splashicon.jpg" />
         <description>Openmeetings Screen Sharing applet</description>
         <description kind="short">A File to grab a screen and send it to a
Server</description>
         <offline-allowed/>
     </information>
     <security>
         <all-permissions/>
     </security>
     <resources>
         <j2se version='1.7+'/>

     <jar href="openmeetings-screenshare-3.1.0-SNAPSHOT.jar" main="true"/>
     <jar href="red5-client-1.0.6-RELEASE.jar"/>
     <jar href="red5-server-common-1.0.6-RELEASE.jar"/>
     <jar href="commons-collections-3.2.1.jar"/>
     <jar href="quartz-2.2.1.jar"/>
     <jar href="red5-io-1.0.6-RELEASE.jar"/>
     <jar href="slf4j-api-1.7.9.jar"/>
     <jar href="logback-core-1.1.2.jar"/>
     <jar href="logback-classic-1.1.2.jar"/>
     <jar href="bcprov-jdk15on-1.52.jar"/>
     <jar href="commons-beanutils-1.9.2.jar"/>
     <jar href="commons-codec-1.9.jar"/>
     <jar href="httpcore-4.4.jar"/>
     <jar href="httpclient-4.4.jar"/>
     <jar href="commons-lang3-3.3.2.jar"/>
     <jar href="jcl-over-slf4j-1.7.9.jar"/>
     <jar href="spring-beans-4.1.7.RELEASE.jar"/>
     <jar href="spring-context-4.1.7.RELEASE.jar"/>
     <jar href="ehcache-core-2.5.0.jar"/>
     <jar href="mina-core-2.0.8.jar"/>
     <jar href="spring-core-4.1.7.RELEASE.jar"/>

     </resources>
     <application-desc
main-class='org.apache.openmeetings.screen.webstart.CoreScreenShare'>
         <argument>rtmp://https://<Our
FQDN:1935>/<Reverse_Proxy_sub-domain>/5</argument>
         <argument>1</argument>
<argument>ef0088e7866cdc9bac53ac294eb6d2e1</argument>
         <argument><![CDATA[Desktop sharer;Click Start to publish your
screen;Start sharing;Pause sharing;Select your screen area:;Change
width;Change height;X-Offset;Y-Offset;Width:;Height:;Connection was closed
by server;Show mouse position to viewers;Recording;You may record and share
your screen at the same time. To enable others to see your screen just hit
the start button on the top.;Start recording;Stop recording;Close;Quality
of the screen share:;Very high quality;High quality;Medium quality;Low
quality;Publish;Start Publish;Stop Publish;Host;Publish App;Publish
Id;Reduce the width of the SharingScreen before you try to move it
left;Reduce the height of the SharingScreen before you try to move it
bottom;Reduce the x of the SharingScreen before you try to make it
wider;Reduce the y of the SharingScreen before you try to make it
higher;Fill these settings stream your screen data to 3th party providers
like justin.tv;Please start Screen sharing to be able to publish
it;Moderator permission required to start recording;Notify on
disconnect;Security;Allow Remote Control (during screen
sharing)]]></argument>
         <argument>1</argument>
         <argument>10</argument>
         <argument>true</argument>
         <argument>true</argument>
         <argument>true</argument>
         <argument>true</argument>
         <argument>--dummy--</argument>
         <argument>--dummy--</argument>
     </application-desc>
</jnlp>

== == == ==


Thank you.

Sincerely,

Susheel Jalali
Coscend Communications Solutions
www.Coscend.com
----------------------------------------------------------------

CONFIDENTIALITY NOTICE: See 'Confidentiality Notice Regarding E-mail
Messages from Coscend Communications Solutions' posted at:
http://www.Coscend.com/Terms_and_Conditions.html

Re: OM 3.1.0 Fails to Launch Applet in Reverse Proxy

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