Configuration

The required runtime configuration for Notification Services is composed of a configuration file and a set of environment variables.

Configuration File

The NS configuration file is referenced by the environment variable PASS_NOTIFICATION_CONFIGURATION or a system property named pass.notification.configuration. The value of this environment variable must be a Spring Resource URI, beginning with classpath:/, file:/, or http://.

Here is a sample NS configuration file:

{
  "mode": "${pass.notification.mode}",
  "recipient-config": [
    {
      "mode": "DEMO",
      "fromAddress": "[email protected]",
      "global_cc": [
        "[email protected]"
      ],
      "whitelist": [
        "mailto:[email protected]"
      ]
    }
  ],
  "templates": [
    {
      "notification": "SUBMISSION_APPROVAL_INVITE",
      "templates": {
        "SUBJECT": "Approval Invite Subject",
        "BODY": "Approval Invite Body",
        "FOOTER": "classpath:/templates/footer.hbr"
      }
    },
    {
      "notification": "SUBMISSION_APPROVAL_REQUESTED",
      "templates": {
        "SUBJECT": "Approval Requested Subject",
        "BODY": "Approval Requested Body",
        "FOOTER": "classpath:/templates/footer.hbr"
      }
    },
    {
      "notification": "SUBMISSION_CHANGES_REQUESTED",
      "templates": {
        "SUBJECT": "Changes Requested Subject",
        "BODY": "Changes Requested Body",
        "FOOTER": "classpath:/templates/footer.hbr"
      }
    },
    {
      "notification": "SUBMISSION_SUBMISSION_SUBMITTED",
      "templates": {
        "SUBJECT": "Submission Submitted Subject",
        "BODY": "Submission Submitted Body",
        "FOOTER": "classpath:/templates/footer.hbr"
      }
    },
    {
      "notification": "SUBMISSION_SUBMISSION_CANCELLED",
      "templates": {
        "SUBJECT": "Submission Cancelled Subject",
        "BODY": "Submission Cancelled Body",
        "FOOTER": "classpath:/templates/footer.hbr"
      }
    }
  ],
  "link-validators": [
    {
      "rels" : [
        "submission-view",
        "submission-review",
        "submission-review-invite"
      ],
      "requiredBaseURI" : "https://example.org",
      "throwExceptionWhenInvalid": true
    }, 
    {
      "rels": ["*"],
      "requiredBaseURI" : "http",
      "throwExceptionWhenInvalid": false
    }
  ]
}

Mode

Notification Services has three runtime modes:

• DISABLED: No notifications will be composed or emitted. All JMS messages received by NS will be immediately acknowledged and subsequently discarded.

• DEMO: Allows a whitelist, global carbon copy recipient list, and notification templates to be configured distinct from the PRODUCTION mode. Otherwise, exactly the same as PRODUCTION.

• PRODUCTION: Allows a whitelist, global carbon copy recipient list, and notification templates to be configured distinct from the DEMO mode. Otherwise, exactly the same as DEMO.

Configuration elements for both PRODUCTION and DEMO modes may reside in the same configuration file. There is no need to have separate configuration files for a "demo" and "production" instance of NS.

The environment variable PASS_NOTIFICATION_MODE (or its system property equivalent pass.notification.mode) is used to set the runtime mode.

Notification Recipients

The recipient(s) of a notification (e.g. email) is a function of a {Submission, SubmissionEvent} tuple. After the recipient list has been determined, it can be manipulated as discussed below.

Whitelist

Each configuration mode may have an associated whitelist. If the whitelist is empty, all recipients for a given notification will receive an email. If the whitelist is not empty, the recipients for a given notification will be filtered, and only whitelisted recipients will receive the notification. Having a whitelist for the DEMO mode is useful to prevent sending test notifications to unintended recipients.

Production should use an empty whitelist (i.e. all potential notification recipients are whitelisted).

Global Carbon Copy Support

Each configuration mode may specify one or more "global carbon copy" addresses. These addresses will receive a copy of each email sent by Notification Services (NS). Global carbon copy addresses are automatically whitelisted and do not need to be explicitly added to the whitelist. Blind carbon copy is also supported.

Here is an example recipient configuration that specifies a global carbon copy and a global blind carbon copy:

{
  "recipient-config": [
    {
      "mode": "DEMO",
      "fromAddress": "[email protected]",
      "global_cc": [
        "[email protected]"
      ],
      "global_bcc": [
        "[email protected]"
      ]
    }
  ]
}

Multiple email addresses may be specified.

Example

For example, let's say that NS is preparing to send a notification to [email protected]. If the runtime mode of NS is DEMO , and:

• The DEMO mode has no (or an empty) whitelist, then [email protected] and the global carbon copy address (for the DEMO mode) receives the notification.

• The DEMO mode has a whitelist that does not contain [email protected], then only the global carbon copy address receives the notification.

• The DEMO mode has a whitelist that does contain [email protected], then [email protected] and the global carbon copy address receives the notification.

• The DEMO mode has a whitelist that does not contain [email protected] and there is no global carbon copy address (for the DEMO mode), then no notification will be dispatched.

If the runtime mode of NS is PRODUCTION, and:

• The PRODUCTION mode has no (or an empty) whitelist, then [email protected] and the global carbon copy address (for the PRODUCTION mode) receives the notification.

• The PRODUCTION mode has a whitelist that does not contain [email protected], then only the global carbon copy address receives the notification.

• The PRODUCTION mode has a whitelist that does contain [email protected], then [email protected] and the global carbon copy address receives the notification.

• The PRODUCTION mode has a whitelist that does not contain [email protected] and there is no global carbon copy address (for the PRODUCTION mode), then no notification will be dispatched.

Environment Variables

Supported environment variables (system property analogs) and default values are:

• PASS_NOTIFICATION_QUEUE_EVENT_NAME (pass.notification.queue.event.name): event

• PASS_NOTIFICATION_MODE (pass.notification.mode): DEMO

• PASS_CORE_URL (pass.client.url): {PASS_CORE_URL}

• PASS_CORE_USER (pass.client.user): {PASS_CORE_USER}

• PASS_CORE_PASSWORD (pass.client.password): ${PASS_CORE_PASSWORD}

• SPRING_MAIL_HOST (spring.mail.host): ${SPRING_MAIL_HOST}

• SPRING_MAIL_PORT (spring.mail.port): ${SPRING_MAIL_PORT}

• SPRING_MAIL_USERNAME (spring.mail.user): {SPRING_MAIL_USERNAME}

• SPRING_MAIL_PASSWORD (spring.mail.pass): {SPRING_MAIL_PASSWORD}

• SPRING_MAIL_PROTOCOL (spring.mail.transport): ${SPRING_MAIL_PROTOCOL:SMTP}

• PASS_NOTIFICATION_CONFIGURATION (pass.notification.configuration): classpath:/notification.json

In order for notification services to connect to AWS SQS queue (the default messaging provider), the following variables must be set as Environment Variables (System Properties (-Dargs)):

• AWS_REGION (aws.region): AWS region id (i.e. us-east-1)

In order for NS to access to AWS SQS, standard AWS access management needs to be configured on the deployed NS. See AWS IAM Access Management for more information.

For testing purposes, you may set AWS access keys to gain access:

• AWS_ACCESS_KEY_ID (aws.accessKeyId): AWS Access Key to account with access to SQS queue

• AWS_SECRET_ACCESS_KEY (aws.secretKey) : AWS Secret Access Key to account with access to SQS queue

NOTE: The AWS ID and key should only be used for testing, and in production access should be managed through IAM roles.