bigbluebutton-Github/DEVELOPMENT.md
2017-06-06 18:18:33 -04:00

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This document provides instructions for developers to setup their
environment and work on the upcoming BBB 2.0 (tentative release version).
## Install BBB 1.1
Follow the (install instructions)[http://docs.bigbluebutton.org/install/install.html] for 1.1.
Make sure you have a working BBB 1.1 before you proceed with the instructions below.
## Setup development environment
Setup your development environment following these (instructions)[http://docs.bigbluebutton.org/dev/setup.html]
## Checkout development branch
Checkout the development branch `move-java-classes-from-bbb-web-to-bbb-common-web` from this (repository)[https://github.com/ritzalam/bigbluebutton]
Open nine (9) terminal windows so you will dedicate one window for each bbb-component.
You can name them client, bbb-apps, apps-common, red5, akka-apps, akka-fsesl, bbb-web, common-web, and messages.
## Building the client
On you bbb-client terminal, run the following commands.
```
cd ~/dev/bigbluebutton/bigbluebutton-client
```
Build build a specific locale (en_US default)
```
ant locale -DLOCALE=en_US
```
To build all locales
```
ant locales
```
This will take about 10 minutes (depending on the speed of your computer). Next, let's build the client
```
ant
```
This will create a build of the BigBlueButton client in the `/home/firstuser/dev/bigbluebutton/bigbluebutton-client/client` directory.
## Build BBB Red5 Applications
On your red5 terminal, turn off red5 service
```
sudo systemctl stop red5
```
You need to make `red5/webapps` writeable. Otherwise, you will get a permission error when you try to deploy into Red5.
```
sudo chmod -R 777 /usr/share/red5/webapps
```
### Build common-message
On your message terminal, run the following commands. Other components depends on this, so build this first.
```
cd ~/dev/bigbluebutton/bbb-common-message/
sbt clean
sbt publish
sbt publishLocal
```
### Build bbb-apps
We've split bbb-apps into bbb-apps-common and bigbluebutton-apps. We need to build bbb-apps-common first.
On your apps-common terminal, build the bbb-apps-common component.
```
cd ~/dev/bigbluebutton/bbb-apps-common/
# Force updating of bbb-commons-message
sbt clean
# Build and share library
sbt publish publishLocal
```
On your bbb-apps terminal, run the following commands.
```
cd ~/dev/bigbluebutton/bigbluebutton-apps/
# To make sure the lib folder is clean of old dependencies especially if you've used this
# dev environment for BBB 1.1, delete the contents of the lib directory. You can only to
# do once.
rm lib/*
# Force updating dependencies (bbb-apps-common)
gradle clean
gradle resolveDeps
gradle war deploy
```
## Manually start services
### Run Red5
On your red5 terminal, start red5.
```
cd /usr/share/red5
sudo -u red5 ./red5.sh
```
### Run Akka Apps
On your akka-apps terminal, start akka-apps
```
cd ~/dev/bigbluebutton/akka-bbb-apps
# To make sure the lib folder is clean of old dependencies especially if you've used this
# dev environment for BBB 1.1, delete the contents of the lib directory. You can only to
# do once.
rm lib_managed/*
# We need to stop the existing packaged akka-apps
sudo systemctl stop bbb-apps-akka
# Now we can run our own
sbt clean
sbt run
```
### Run Akka FSESL App
On your akka-fsesl terminal, start akka-fsesl
```
cd ~/dev/bigbluebutton/akka-bbb-fsesl
# To make sure the lib folder is clean of old dependencies especially if you've used this
# dev environment for BBB 1.1, delete the contents of the lib directory. You can only to
# do once.
rm lib_managed/*
# We need to stop the existing packaged akka-fsesl
sudo systemctl stop bbb-fsesl-akka
# Now we can run our own
sbt clean
sbt run
```
### Build bbb-web
We've split up bbb-web into bbb-common-web and bigbluebutton-web. We need to build
bbb-common-web first.
On your common-web terminal, run these commands
```
cd ~/dev/bigbluebutton/bbb-common-web/
# To make sure the lib folder is clean of old dependencies especially if you've used this
# dev environment for BBB 1.1, delete the contents of the lib directory. You can only to
# do once.
rm lib_managed/*
# Force updating of dependencies especially bbb-commons-message
sbt clean
sbt publish publishLocal
```
### Run bbb-web
First we need to remove the old `bbb-web` app from tomcat to avoid duplicate messages
```
sudo cp /var/lib/tomcat7/webapps/bigbluebutton.war /var/lib/tomcat7/webapps/bigbluebutton.war-packaged
sudo rm -r /var/lib/tomcat7/webapps/bigbluebutton
```
On your bbb-web terminal, start bbb-web
```
cd ~/dev/bigbluebutton/bigbluebutton-web
```
Get the salt and BBB URL from `/var/lib/tomcat7/webapps/demo/bbb_api_conf.jsp`
Edit `grails-app/conf/bigbluebutton.properties` and change the following with
the salt and IP you got from above.
```
bigbluebutton.web.serverURL=http://192.168.74.128
securitySalt=856d5e0197b1aa0cf79897841142a5f6
```
Start bbb-web
```
# To make sure the lib folder is clean of old dependencies especially if you've used this
# dev environment for BBB 1.1, delete the contents of the lib directory. You can only to
# do once.
rm lib/*
gradle clean
gradle resolveDeps
grails clean
sudo chmod -R ugo+rwx /var/log/bigbluebutton
grails -Dserver.port=8888 run-war
```
If things started without errors, congrats!
## Converting and Adding new messages
In bigbluebutton-apps, from [InMessages.scala](https://github.com/bigbluebutton/bigbluebutton/blob/bbb-2x-mconf/akka-bbb-apps/src/main/scala/org/bigbluebutton/core/api/InMessages.scala) choose the message to convert.
```
case class UserShareWebcam(meetingID: String, userId: String, stream: String) extends InMessage
```
In bbb-apps-common, add new message in [BbbCoreEnvelope.scala](https://github.com/bigbluebutton/bigbluebutton/blob/bbb-2x-mconf/bbb-common-message/src/main/scala/org/bigbluebutton/common2/messages/BbbCoreEnvelope.scala)
```
object UserShareWebcamMsg { val NAME = "UserShareWebcamMsg" }
case class UserShareWebcamMsg(header: BbbClientMsgHeader, body: UserShareWebcamMsgBody)
```
Define `UserShareWebcamMsgBody` in `MessageBody.scala`
```
case class UserShareWebcamMsgBody(userId: String, stream: String)
```
From the client, send message as
```
{
"header": {
"name": "UserShareWebcamMsg",
"meetingId": "foo-meetingId",
"userId": "bar-userId"
},
"body": {
"streamId": "my-webcam-stream"
}
}
```
In [ReceivedJsonMsgHandlerActor](https://github.com/bigbluebutton/bigbluebutton/blob/bbb-2x-mconf/akka-bbb-apps/src/main/scala/org/bigbluebutton/core/pubsub/senders/ReceivedJsonMsgHandlerActor.scala), deserialize the message with implementation in [ReceivedJsonMsgDeserializer](https://github.com/bigbluebutton/bigbluebutton/blob/bbb-2x-mconf/akka-bbb-apps/src/main/scala/org/bigbluebutton/core/pubsub/senders/ReceivedJsonMsgDeserializer.scala).
```
case UserShareWebcamMsg.NAME =>
for {
m <- routeUserShareWebcamMsg(jsonNode)
} yield {
send(envelope, m)
}
```
Route the message in [ReceivedMessageRouter](https://github.com/bigbluebutton/bigbluebutton/blob/bbb-2x-mconf/akka-bbb-apps/src/main/scala/org/bigbluebutton/core2/ReceivedMessageRouter.scala).
```
def send(envelope: BbbCoreEnvelope, msg: UserShareWebcamMsg): Unit = {
val event = BbbMsgEvent(msg.header.meetingId, BbbCommonEnvCoreMsg(envelope, msg))
publish(event)
}
```
Handle the message in [MeestingActor](https://github.com/bigbluebutton/bigbluebutton/blob/bbb-2x-mconf/akka-bbb-apps/src/main/scala/org/bigbluebutton/core/running/MeetingActor.scala) replacing the old implementation.
A complete example would be the `ValidateAuthTokenReqMsg`.