feat: Jaas example that uses local jitsi-meet (#13350)

* feat: Adds an example to convert a deployment to use jaas.

* squash: Generates the daily asap token with expiration of 1 day.

The default is 1 hour.

* squash: Use local deployment UI with jaas, not 8x8.vc one.

- We load config.js from 8x8.vc with the tenant, to allow release pinning to work.

- We sed the vpass_cookie in the custom nginx conf as variables are not allowed in location matching.

- The jaas-vars need to be global as it will overwrite config.js location and index html.

* squash: Enables e2ee for the meetings.

* squash: Bump node version check.

* squash: Fix filename.

* squash: Updates the readme.

* squash: Checks whether node is installed.

* squash: Fixes initial configuration.

The jaas-vars is required to reload nginx, done by update-asap-daily script.

* squash: More fixes of misspelled config file.

* squash: Fixes serving the pub key.

.eslintignore

 # The build artifacts of the jitsi-meet project.
 build/*
 
+doc/*
+
 # Third-party source code which we (1) do not want to modify or (2) try to
 # modify as little as possible.
 libs/*

debian/jitsi-meet-web-config.install

 doc/debian/jitsi-meet/jitsi-meet.example        /usr/share/jitsi-meet-web-config/
 doc/debian/jitsi-meet/jitsi-meet.example-apache /usr/share/jitsi-meet-web-config/
 config.js                                       /usr/share/jitsi-meet-web-config/
+doc/jaas/nginx-jaas.conf                        /usr/share/jitsi-meet-web-config/
+doc/jaas/index-jaas.html                        /usr/share/jitsi-meet-web-config/
+doc/jaas/8x8.vc-config.js                        /usr/share/jitsi-meet-web-config/

debian/jitsi-meet-web.install

 resources/*.sh			/usr/share/jitsi-meet/scripts/
 pwa-worker.js			/usr/share/jitsi-meet/
 manifest.json			/usr/share/jitsi-meet/
+doc/jaas/move-to-jaas.sh        /usr/share/jitsi-meet/scripts/
+doc/jaas/update-asap-daily.sh   /usr/share/jitsi-meet/scripts/

doc/debian/jitsi-meet/jitsi-meet.example

 
     add_header Strict-Transport-Security "max-age=63072000" always;
     set $prefix "";
+    set $custom_index "";
+    set $config_js_location /etc/jitsi/meet/jitsi-meet.example.com-config.js;
 
     ssl_certificate /etc/jitsi/meet/jitsi-meet.example.com.crt;
     ssl_certificate_key /etc/jitsi/meet/jitsi-meet.example.com.key;
     gzip_proxied no-cache no-store private expired auth;
     gzip_min_length 512;
 
+    include /etc/jitsi/meet/jaas/*.conf;
+
     location = /config.js {
-        alias /etc/jitsi/meet/jitsi-meet.example.com-config.js;
+        alias $config_js_location;
     }
 
     location = /external_api.js {
         proxy_set_header Host $http_host;
     }
 
+    location ~ ^/_api/public/(.*)$ {
+        autoindex off;
+        alias /etc/jitsi/meet/public/$1;
+    }
+
     # ensure all static content can always be found first
     location ~ ^/(libs|css|static|images|fonts|lang|sounds|.well-known)/(.*)$
     {
     #}
 
     location ~ ^/([^/?&:'"]+)$ {
+        set $roomname "$1";
         try_files $uri @root_path;
     }
 
     location @root_path {
-        rewrite ^/(.*)$ / break;
+        rewrite ^/(.*)$ /$custom_index break;
     }
 
     location ~ ^/([^/?&:'"]+)/config.js$
         set $subdomain "$1.";
         set $subdir "$1/";
 
-        alias /etc/jitsi/meet/jitsi-meet.example.com-config.js;
+        alias $config_js_location;
     }
 
     # Matches /(TENANT)/pwa-worker.js or /(TENANT)/manifest.json to rewrite to / and look for file

doc/jaas/8x8.vc-config.js

+</script>
+<script src="https://8x8.vc/<!--# echo var="subdir" default="" -->config.js" onload="{
+config.p2p.disabledCodec='VP9';
+config.videoQuality.disabledCodec='VP9';
+config.e2ee = { externallyManagedKey: true };
+}"/>
+<script>

doc/jaas/README.md

+## How to switch your deployment to [JaaS](https://jaas.8x8.vc) in one easy step
+
+Note: By default it will have e2ee(end-to-end) encryption enabled that works only on chromium based browsers (Chrome, Edge, ...). If a participant joins from another browser or mobile the e2ee is turned off. 
+
+In order to use your deployment with JaaS you first need to login to your [JaaS Developer console](https://jaas.8x8.vc/#/apikeys) and generate a key pair.
+Use `Add API key` button and then `Generate API key pair`. Make sure you download the generated private key from:
+
+<img src="generated_key_dialog.png" height="250">
+
+Make sure you transfer this downloaded private key to your server. Copy the key id from:
+
+<img src="api_keys_kid.png" height="200">
+
+Now on your server run the helper script passing the private key file and the key id:
+
+```
+sudo /usr/share/jitsi-meet/scripts/move-to-jaas.sh /my/path/test-key.pk <key_id>
+```
+
+More information about JaaS Api keys at: https://developer.8x8.com/jaas/docs/jaas-console-api-keys
+
+If you want to adjust the enabled services you can do that in /etc/jits/meet/jaas/nginx-jaas.conf. The part after `proxy_set_body` is the jwt token content that will be used for the client tokens. More info about the JaaS tokens: https://developer.8x8.com/jaas/docs/api-keys-jwt

doc/jaas/index-jaas.html

+<!DOCTYPE html>
+<html>
+    <head>
+        <script src='external_api.js' async></script>
+        <style>html, body, #jaas-container { height: 100%; }</style>
+        <script type="text/javascript">
+            function getRoomName(pathname) {
+                const contextRootEndIndex = pathname.lastIndexOf('/');
+
+                return pathname.substring(contextRootEndIndex + 1);
+            }
+            window.onload = () => {
+                const jaasJwt = <!--#include virtual="/jaas-jwt" -->;
+                const api = new JitsiMeetExternalAPI(
+                    window.location.host, {
+                        roomName: `${jaasJwt.tenant}/${getRoomName(window.location.pathname)}`,
+                        parentNode: document.querySelector('#jaas-container'),
+                        jwt: jaasJwt.token,
+                        e2eeKey: jaasJwt.e2eeKey
+                    });
+                api.addListener('videoConferenceJoined', () => {
+                    if (jaasJwt.e2eeKey) {
+                        console.info('Toggling e2ee on!')
+                        api.executeCommand('toggleE2EE', true);
+                    }
+                });
+            }
+        </script>
+    </head>
+    <body>
+        <div id="jaas-container" />
+    </body>
+</html>

doc/jaas/move-to-jaas.sh

+#!/bin/bash
+
+set -e
+
+PRIVATE_KEY=$1
+JAAS_KEY_ID=$2
+
+if [ ! -f "${PRIVATE_KEY}" ] ; then
+  echo "You need to specify a correct path for the private key as a first argument."
+  exit 1;
+fi
+
+if [[ ! "${JAAS_KEY_ID}" =~ ^vpaas-magic-cookie-[0-9a-z]+/[0-9a-z]+$ ]]; then
+    echo "Invalid key id passed as a second argument."
+    exit 2;
+fi
+
+command -v node >/dev/null 2>&1 || { echo >&2 "You must install node first, go to https://nodejs.org. Aborting."; exit 4; }
+
+NODE_VER=$(node -v);
+NODE_MAJOR_VER=$(echo ${NODE_VER:1} |  cut -d. -f1);
+
+if [ "$NODE_MAJOR_VER" -lt "18" ]; then
+    echo "Please install latest LTS version of node (18+)";
+    exit 3;
+fi
+
+# we need this util for debconf-set-selections
+sudo apt install debconf-utils
+
+# Let's pre-set some settings for token-generator
+cat << EOF | sudo debconf-set-selections
+token-generator token-generator/private-key string ${PRIVATE_KEY}
+token-generator token-generator/kid  string ${JAAS_KEY_ID}
+EOF
+
+apt install token-generator
+
+mkdir -p /etc/jitsi/meet/jaas
+
+VPASS_COOKIE=$(echo -n ${JAAS_KEY_ID}| cut -d/ -f1)
+cp /usr/share/jitsi-meet-web-config/nginx-jaas.conf /etc/jitsi/meet/jaas
+sed -i "s/jaas_magic_cookie/${VPASS_COOKIE}/g" /etc/jitsi/meet/jaas/nginx-jaas.conf
+
+cp /usr/share/jitsi-meet-web-config/8x8.vc-config.js /etc/jitsi/meet/jaas/
+echo "set \$config_js_location /etc/jitsi/meet/jaas/8x8.vc-config.js;" >> /etc/jitsi/meet/jaas/jaas-vars
+echo "set \$custom_index index-jaas.html;" >> /etc/jitsi/meet/jaas/jaas-vars
+
+ln -s /usr/share/jitsi-meet-web-config/index-jaas.html /usr/share/jitsi-meet/index-jaas.html
+
+# let's create the daily key now
+/usr/share/jitsi-meet/scripts/update-asap-daily.sh
+
+# let's add to cron daily the update of the asap key
+if [ -d /etc/cron.daily ]; then
+  ln -s /usr/share/jitsi-meet/scripts/update-asap-daily.sh /etc/cron.daily/update-jaas-asap.sh
+else
+  echo "No /etc/cron.daily. Please add to your cron jobs to execute as root daily the script: /usr/share/jitsi-meet/scripts/update-asap-daily.sh"
+fi

doc/jaas/nginx-jaas.conf

+include /etc/jitsi/meet/jaas/jaas-vars;
+location = /jaas-jwt {
+  include /etc/jitsi/token-generator/daily-key;
+  ssi on;
+  proxy_method POST;
+  proxy_set_header content-type "application/json";
+  proxy_set_header Accept-Encoding "";
+  proxy_set_header Authorization "Bearer $jaas_asap_key";
+  proxy_pass_request_body off;
+  proxy_set_body '{"sub":"jaas_magic_cookie","context":{"features":{"livestreaming":false,"outbound-call":false,"sip-outbound-call":false,"transcription":false,"recording":false},"user":{"moderator":true}},"room": "$roomname"}';
+  proxy_pass http://127.0.0.1:8017/generate/client?e2eeKey=true;
+}
+
+location @magic_root_path {
+    rewrite ^/(.*)$ /index.html break;
+}
+
+# Anything that didn't match above, and isn't a real file, assume it's a room name and redirect to /
+location ~ ^/jaas_magic_cookie/(.*)$ {
+    set $subdomain "jaas_magic_cookie.";
+    set $subdir "jaas_magic_cookie/";
+    try_files $1 @magic_root_path;
+}

doc/jaas/update-asap-daily.sh

+JWT_KID=$(cat /etc/jitsi/token-generator/config | grep  SYSTEM_ASAP_BASE_URL_MAPPINGS | cut -d= -f2- | jq -r .[].kid)
+JWT_DATE=$(echo -n $JWT_KID | cut -d/ -f2-)
+JWT_DATE=${JWT_DATE#jwt-}
+KEY_FILE=/etc/jitsi/token-generator/daily-key
+echo -n "set \$jaas_asap_key " > ${KEY_FILE}
+ASAP_KEY=$(ASAP_SIGNING_KEY_FILE=/etc/jitsi/token-generator/asap-${JWT_DATE}.key ASAP_JWT_KID="${JWT_KID}" ASAP_EXPIRES_IN="1 day" node /usr/share/token-generator/jwt.js| tail -n1)
+echo -n "${ASAP_KEY};" >> ${KEY_FILE}
+
+service nginx reload

modules/API/external/external_api.js

     cancelPrivateChat: 'cancel-private-chat',
     closeBreakoutRoom: 'close-breakout-room',
     displayName: 'display-name',
-    e2eeKey: 'e2ee-key',
     endConference: 'end-conference',
     email: 'email',
     grantModerator: 'grant-moderator',
             switch (name) {
             case 'video-conference-joined': {
                 if (typeof this._tmpE2EEKey !== 'undefined') {
-                    this.executeCommand(commands.e2eeKey, this._tmpE2EEKey);
+
+                    const hexToBytes = hex => {
+                        const bytes = [];
+
+                        for (let c = 0; c < hex.length; c += 2) {
+                            bytes.push(parseInt(hex.substring(c, c + 2), 16));
+                        }
+
+                        return bytes;
+                    };
+
+                    this.executeCommand('setMediaEncryptionKey', JSON.stringify({
+                        exportedKey: hexToBytes(this._tmpE2EEKey),
+                        index: 0
+                    }));
+
                     this._tmpE2EEKey = undefined;
                 }