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https://github.com/clearflask/clearflask

Listen to your users during product development with ClearFlask
https://github.com/clearflask/clearflask

feedback roadmap

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Listen to your users during product development with ClearFlask

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README

        



Logo




ClearFlask




Build Status


GitHub release


License


Open-source Feedback Management Tool.


Alternative to Canny and UserVoice.




Video link



Demo


Demo


Demo

### Contents

- [Managed hosting](#managed-hosting)
- [Self hosting](#self-hosting)
- [Quick start](#quick-start)
- [Deploy dependencies](#deploy-dependencies)
- [Via Docker](#via-docker)
- [Via AWS](#via-aws)
- [Deploy ClearFlask](#deploy-clearflask)
- [Setup](#setup)
- [Run](#run)
- [Maintenance](#maintenance)
- [Migration between Elasticsearch/MySQL](#migration-between-elasticsearchmysql)
- [Contributing](#contributing)
- [Code quality](#code-quality)
- [Building](#building)
- [Architecture](#architecture)
- [Release](#release)
- [Security Policy](#security-policy)

# Managed Hosting

Support our open-source development by choosing cloud hosting with [scalable pricing](https://clearflask.com/pricing),
check us out on [our website](https://clearflask.com).

# Self Hosting

## Quick start

For a quick start using [Docker](https://www.docker.com/products/docker-desktop), download
the [Docker Compose service file](clearflask-release/src/main/docker/compose/docker-compose.self-host.yml)
as `docker-compose.yml`, and run the following:

```shell
docker-compose --profile with-deps up
```

Point your browser at [http://localhost](http://localhost) and create an account using email `admin@localhost`.

You also want to setup outgoing mail, read the [Email section](#email).

If you wish to host it on your domain other than `localhost`, read the [DNS section](#dns) and then
setup [SSL/TLS certificates](#certificate-management).

## Replace dependencies

There are several dependencies that you can swap out for ClearFlask:

- **AWS DynamoDB** or **Localstack** or API-compatible alternative (ScyllaDB is not fully compatible)
- **MinIO** or **AWS S3** or API-compatible alternative
- One of:
- **MySQL** or **Aurora**
- **ElasticSearch** or **OpenSearch**
- **Email service via SMTP** or **AWS SES**

And a few optional:

- **Google ReCaptcha**
- **Let's Encrypt** automagic certificate management
- **CloudFront** as a CDN (Use in front of `clearflask-connect`)

### Via Docker

You can spin up all dependencies via Docker.

Simply add the `--profile with-deps` to your `docker-compose` command when starting ClearFlask.

All database content will be persisted to local filesystem under `data` folder.

### Via AWS

For production workload, you will want to spin up these dependencies yourself and point ClearFlask to their endpoints.

##### IAM access

For AWS services, `clearflask-server` auto-detects Access Keys using either a configuration property or the default
locations. If you are running in EC2 or ECS, keys detection is automated, you just need to create the appropriate IAM
role.

##### AWS DynamoDB

Provide IAM access including create table permission as table is created automatically by ClearFlask on startup.

IAM actions:

- CreateTable
- BatchGetItem
- GetItem
- Query
- BatchWriteItem
- DeleteItem
- PutItem
- UpdateItem

##### AWS S3

Create a private bucket with IAM access to ClearFlask.

IAM actions:

- ListBucket
- GetObject
- DeleteObject
- PutObject

You can also use an API-compatible alternative service such as Wasabi, MinIO...

##### ElasticSearch or MySQL

Recommended is AWS ES, give the proper IAM access

IAM actions, all in these categories:

- List
- Read
- Write
- Tagging

Alternatively you can deploy it yourself (cheaper) or host it on Elastic. Or you can choose to use MySQL/Aurora as a
cheaper alternative.

##### AWS SES

In order to setup SES, you need to seek limit increase via AWS support.

Change the config property `...EmailServiceImpl$Config.useService` to `ses` and give the proper IAM access.

IAM actions:

- SendEmail
- SendRawEmail

Alternatively use any other email provider and fill out the SMTP settings

## Deploy ClearFlask

ClearFlask consists of two components:

- Tomcat application for serving API requests
- NodeJS for SSR, dynamic cert management and serving static files

### Setup

1. Download the [Docker Compose service file](clearflask-release/src/main/docker/compose/docker-compose.self-host.yml)
2. Run it with `docker-compose --profile with-deps up` which creates few configuration files in your local directory
3. Carefully read and modify `server/config-selfhost.cfg`.
4. Carefully read and modify `connect/connect.config.json`.
5. Adjust the Docker Compose service file to add/remove dependencies if you are hosting them outside of Docker

#### Email

By default, email is configured for AWS SES pointing to your Localstack (which doesn't do anything).

You can choose to setup your own SMTP server or use AWS SES.

##### Email using SMTP

Change the configuration to SMTP:

- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.useService`: `smtp`

Then you need to gather your SMTP settings and fill out the following:

- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.smtpStrategy`: `SMTP_TLS`
(SMTP_TLS, SMTPS, SMTP)
- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.smtpHost`: `smtp.gmail.com`
(e.g. smtp.gmail.com)
- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.smtpPort`: `587`
(587 for SMTP_TLS, 465 for SMTPS, 25 for SMTP)
- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.smtpUser`: `[email protected]`
(e.g. [email protected])
- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.smtpPassword`: `asdfqwerzxcvasdf`
(To get this working, you need to enable IMAP if not enabled. If you use 2FA, you need to generate an app password and
use it here)
- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.emailDisplayName`: `ClearFlask`
(e.g. 'ClearFlask for MyCompany')
- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.fromEmailLocalPart`: `my.name`
(first part of your email, for [email protected], it would be 'my.name')
- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.fromEmailDomainOverride`: `gmail.com`
(domain part of your email, for [email protected], it would be 'gmail.com')

##### Email using AWS SES

Change the configuration to SMTP:

- `com.smotana.clearflask.core.push.provider.EmailServiceImpl$Config.useService`: `ses`

Then fill out the SES settings:

- `com.smotana.clearflask.core.email.AmazonSimpleEmailServiceProvider$Config.region`: `us-east-1`
- `com.smotana.clearflask.core.email.AmazonSimpleEmailServiceProvider$Config.serviceEndpoint`: (Leave blank, unless you
need to override)

#### DNS

By default, everything is assumed to be on `localhost`. If you wish to host your portal on `yoursite.com`
or `192.168.1.123`, set the following properties:

- `connect.config.json:parentDomain`: `yoursite.com`
- `config-selfhost.cfg:com.smotana.clearflask.web.Application$Config.domain`: `yoursite.com`

#### Certificate management

##### Automagic using Let's Encrypt

If you wish to have certificates fetched and renewed for you automagically using Let's Encrypt, ensure your DNS is
correctly pointing to your server, it is publicly accessible, and set the following config parameters:

- `connect.config.json:disableAutoFetchCertificate`: `false`
- `connect.config.json:forceRedirectHttpToHttps`: `true`
- `config-selfhost.cfg:com.smotana.clearflask.web.security.AuthCookieImpl$Config.authCookieSecure`: `true`

Once you load your site for the first time, a Certificate is auto-magically fetched for you.

##### Static certificate

If you wish to use your own certificate, set the following properties:

- `connect.config.json:disableAutoFetchCertificate`: `false`
- `connect.config.json:forceRedirectHttpToHttps`: `true`
- `config-selfhost.cfg:com.smotana.clearflask.web.security.AuthCookieImpl$Config.authCookieSecure`: `true`
- `config-selfhost.cfg:com.smotana.clearflask.security.CertFetcherImpl$Config.staticCert`: ``

For the `staticCert` property value, this has to be a JSON object with the following structure, but you need to put it
in a single line:

```json
{
"cert": {
"cert": "-----BEGIN CERTIFICATE-----\nMIIFFjCC...",
"chain": "-----BEGIN CERTIFICATE-----\nMIIE/jCC",
"subject": "feedback.example.com",
"altnames": [
"feedback.example.com"
],
"issuedAt": 1709572939000,
"expiresAt": 1741108939000
},
"keypair": {
"privateKeyPem": "-----BEGIN PRIVATE KEY-----\nMIIEvwIB..."
}
}
```

Note that you have to put this into a single line. The cert, chain and keypair will replace any literal `\n` into a
newline.

This approach is not recommended as you will have to update this certificate manually.

##### Self-managed behind reverse proxy

If you are managing TLS certificates behind a reverse proxy, redirect all `http` requests to `https`, set the following
config:

- `connect.config.json:disableAutoFetchCertificate`: `true`
- `connect.config.json:forceRedirectHttpToHttps`: `true`
- `config-selfhost.cfg:com.smotana.clearflask.web.security.AuthCookieImpl$Config.authCookieSecure`: `true`

##### No certificates

Although discouraged, you can run ClearFlask over HTTP only. Ensure these settings are set:

- `connect.config.json:disableAutoFetchCertificate`: `true`
- `connect.config.json:forceRedirectHttpToHttps`: `false`
- `config-selfhost.cfg:com.smotana.clearflask.web.security.AuthCookieImpl$Config.authCookieSecure`: `false`

#### Dashboard account

For you to manage the dashboard, you need to whitelist an email to be able to create a super-admin account:

`config-selfhost.cfg:com.smotana.clearflask.web.security.SuperAdminPredicate$Config.superAdminEmailRegex`: `^[email protected]$`

After you sign-up, disable further signups using:

`config-selfhost.cfg:com.smotana.clearflask.web.resource.AccountResource$Config.signupEnabled`: `false`

### Run

1. Run `docker-compose up` or `docker-compose --profile with-deps up` to also start dependencies.
2. Point your browser at `http://localhost` or if you configured your DNS `https://yoursite.com`.
3. Create an account using `admin@localhost` email or based on your configuration of `superAdminEmailRegex`.

## Maintenance

### Migration between ElasticSearch/MySQL

Source of truth data is stored in a NoSQL DynamoDB compatible database. For searching/filtering, you have a choice of
using a separate database:

ElasticSearch:

- Intended for large projects
- Searching is great (example: searching for 'Johnny' will find 'Jonathan')

MySQL:

- Intended for small projects
- Lightweight
- Cheap to host
- Searching is idential match only (example: searching for 'Jon' will find 'Jonathan')

#### Migration prerequisites

To check what you are using now, open your configuration file `config-selfhost.cfg` for the
property `com.smotana.clearflask.web.Application$Config.defaultSearchEngine`. If you can't find it, the default value
uses ElasticSearch.

You will need a JMX client such
as [jconsole](https://docs.oracle.com/javase/7/docs/technotes/guides/management/jconsole.html) probably already bundled
with your JRE/JDK on your system or [VisualVM](https://visualvm.github.io/). To connect to your running instance, you
need to enable port forwarding in your `docker-compose.yml` file by uncommenting the `JMX` ports and restarting. Then
you can connect to `service:jmx:rmi:///jndi/rmi://localhost:9950/jmxrmi` without credentials and without SSL.

During the migration, you should be checking the logs for any warnings or errors. Especially when starting up or
invoking a JMX method. If you run in to issues, document it, open an issue on GitHub and optionally rolback by undoing
all the steps in reverse order.

#### Migrate from Mysql to ElasticSearch

1. Double check you are using MySQL, you should have this property
set: `config-selfhost.cfg:com.smotana.clearflask.web.Application$Config.defaultSearchEngine`: `READWRITE_MYSQL`
2. Edit `docker-compose.yml`:
1. Uncomment `clearflask-server` container's JMX ports `9950:9950` and `9951:9951`
2. Uncomment `elasticsearch` container
3. Restart the server
3. Using JMX, invoke `com.smotana.clearflask.web.resource.ProjectResource`.`createIndexes`(`true`, `false`); On failure,
check the logs
4. Edit `docker-compose.yml`
1. Change `com.smotana.clearflask.web.Application$Config.defaultSearchEngine` to `READ_MYSQL_WRITE_BOTH`
2. Restart the server
5. Using JMX, invoke `com.smotana.clearflask.web.resource.ProjectResource`.`reindexProjects`(`true`, `true`, `false`)
6. At this point you are using both ElasticSearch and MySQL but reading only from MySQL. To test a single project with
ElasticSearch, as super admin open `https:///dashboard/settings/project/advanced` and at the bottom of
the page force override the search engine to ElasticSearch. Remember to unset this property before continuing.
7. Edit `docker-compose.yml`
1. Change `com.smotana.clearflask.web.Application$Config.defaultSearchEngine` to `READ_ELASTICSEARCH_WRITE_BOTH`
2. Restart the server and ensure every project is working well.
8. Edit `docker-compose.yml` and change `com.smotana.clearflask.web.Application$Config.defaultSearchEngine`
to `READWRITE_ELASTICSEARCH`
9. Edit `docker-compose.yml`:
1. Comment out `mysql-db` container to prevent it from starting up.
2. Comment out `clearflask-server` container's JMX ports `9950:9950` and `9951:9951`
3. Restart the server
10. Remove the leftover data stored by the now non-functional MySQL container.

#### Migrate from ElasticSearch to Mysql

1. Double check you are using ElasticSearch, you may have this property
set: `config-selfhost.cfg:com.smotana.clearflask.web.Application$Config.defaultSearchEngine`: `READWRITE_ELASTICSEARCH`
. If it is missing, the default is ElasticSearch
2. Edit `docker-compose.yml`:
1. Uncomment `clearflask-server` container's JMX ports `9950:9950` and `9951:9951`
2. Uncomment `mysql-db` container
3. Restart the server
3. Using JMX, invoke `com.smotana.clearflask.web.resource.ProjectResource`.`createIndexes`(`false`, `true`); On failure,
check the logs
4. Edit `docker-compose.yml`
1. Change `com.smotana.clearflask.web.Application$Config.defaultSearchEngine`
to `READ_ELASTICSEARCH_WRITE_BOTH`
2. Restart the server
5. Using JMX, invoke `com.smotana.clearflask.web.resource.ProjectResource`.`reindexProjects`(`true`, `false`, `true`)
6. At this point you are using both ElasticSearch and MySQL but reading only from ElasticSearch. To test a single
project with MySQL, as super admin open `https:///dashboard/settings/project/advanced` and at the bottom
of the page force override the search engine to MySQL. Remember to unset this property before continuing.
7. Edit `docker-compose.yml`
1. Change `com.smotana.clearflask.web.Application$Config.defaultSearchEngine`
to `READ_MYSQL_WRITE_BOTH`
2. Restart the server and ensure every project is working well.
8. Edit `docker-compose.yml` and change `com.smotana.clearflask.web.Application$Config.defaultSearchEngine`
to `READWRITE_MYSQL`
9. Edit `docker-compose.yml`:
1. Comment out `elasticsearch` container to prevent it from starting up.
2. Comment out `clearflask-server` container's JMX ports `9950:9950` and `9951:9951`
3. Restart the server
10. Remove the leftover data stored by the now non-functional ElasticSearch container.

# Contributing

Your contributions are very much appreciated. Please see here on how to contribute to our codebase.

## Code quality

### Java

- Generally following the [Google Java Style Guide](https://google.github.io/styleguide/javaguide.html)
- **IntelliJ** Recommended: Code style formatting is in `.idea` folder
- It is expected to write a test for each functionality.

### JS/TS

- **VisualCode** recommended: code formatting and properties are defined in `.vscode` folder
- We are yet to establish a proper test framework. A proposal would be welcome.

## Building

### Environment setup

Development has been done under Mac, Linux, and Windows (with WSL)

The following requirements are a minimum:

- Java 11
- Maven
- Makefile (for local and production deployment)
- Docker
- FFmpeg and ffprobe (For `babel-plugin-transform-media-imports`)
- OpenSSL (For local deployment's self-signed certs)

```shell
brew install maven ffmpeg make openssl
```

Please let us know if we missed anything.

### Compile and build

Building is straightforward and can be done by running:

```shell
mvn clean install
```

Add `-DskipTests` or `-DskipITs` to skip all tests or just Integration tests respectively.

For developing integration tests, you may want to start a local instance of ClearFlask and run integrations directly
from your IDE. Otherwise you will have to alwasy spin up all dependencies.

### Run locally

There are several ways to run locally depending on what you want to test.

#### Frontend + Mock backend

Ideal for fast-iteration on frontend changes. Changes to code take effect immediately.

```shell
make frontend-start
```

Open browser at [http://localhost:3000](http://localhost:3000).

#### Connect + Frontend + Mock backend

Intended for testing Connect and SSR. For code changes to take effect, you must rebuild clearflask-frontend.

```shell
make connect-start
```

Open browser at [http://localhost:9080](http://localhost:9080).

#### HTTPS + Connect + Frontend + Backend

Intended for testing the whole deal before deployment. For code changes to take effect, you must completely rebuild
clearflask.

```shell
make local-up
make local-down
```

Open browser at [https://localhost](https://localhost).

#### Connect + Frontend + Backend (Self-host)

Intended for testing self-host deployment, uses locally built Docker images rather than officially released images. For
code changes to take effect, you must completely rebuild clearflask.

```shell
make selfhost-up
make selfhost-down
```

Open browser at [https://localhost](https://localhost).

### Debugging

When running a local deploy, you can debug various components:

#### Attach debugger

For debugging `clearflask-server` running on Tomcat, point IntelliJ IDEA or your favourite IDE to remote JVM debug
on `localhost:9999`.

#### JMX

For changing configuration parameters or running exposed operations, connect via JMX using your favourite tool (
JVisualVM, JConsole, ...) on `localhost:9950` without credentials and without SSL.

#### ElasticSearch Kibana

To look at the ES cluster and run commands, point your browser at `http://localhost:5601`.

#### KillBill Kaui

To look at the billing sysstem, point your browser at `http://localhost:8081`.

Credentials are `admin/password` and API key and secret is `bob/lazar`.

If you are debugging an Integration Test, a log line will reveal the API key and
secret: `KillBill test randomized apiKey {} secretKey {}`.

#### AWS services (DynamoDB, Route53, SES, S3)

You can use regular AWS command line tool and point it to our mocked up LocalStack services:

```shell
aws --endpoint-url=http://localhost:4566 ...
```

## Architecture

### Overall view

The following is a production deployment of ClearFlask. It was once scribbled down during a conversation and now it's an
official architecture diagram until we have a better replacement.

![Architecture diagram](clearflask-resources/clearflask-architecture.png)

### Project Structure

##### clearflask-api

Contains OpenAPI definition for communication between frontend and backend. Also includes definition of project
settings.

##### clearflask-frontend

Client side React application containing the Landing page, customer dashboard and portal. Entry point is `index.ts`.

Also contains a NodeJS server nicknamed `Connect` that serves static files, Server-Side Rendered page as well as
handling dynamic TLS certificate issuing for customers. Entry point is `connect.ts`.

##### clearflask-legal

Resource module containing Privacy Policy and Terms of Service documents.

##### clearflask-logging

Server logging module used for formattinbg logs as well as sending criticial emails to SRE of any warnings or errors. It
is a separate package since it's used by both `clearflask-server` as well as KillBill servers.

##### clearflask-resources

ClearFlask official vector logo and resources.

##### clearflask-server

Server implementation of the OpenAPI definition to serve requests from clients. Uses several dependencies:

- DynamoDB: Most data is stored in this NoSQL database for fast access and scalability
- ElasticSearch: For relevant results and searching, data is replicated to ES for fast searching.
- S3: User uploaded images are served directly from S3.
- KillBill: For payment processing and billing management, KillBill is used.

## Release

Intended for ClearFlask developers, this guide is for making a release of ClearFlask to create Docker images and Maven
artifacts.

### Prerequisites

You need credentials for uploading to GitHub Packages repository for both Docker and Maven.

In GitHub personal settings create a PAT with `read:packages`, `write:packages`, and `delete:packages` scopes.

For Docker registry, run this command and input your PAT as password:

```shell
docker login ghcr.io -u USERNAME
```

Then fill out the following with your PAT and put it under `~/.m2/settings.xml`:

```xml



github
matusfaro
~~INSERT PAT TOKEN~~



github


central
https://repo1.maven.org/maven2


github
https://maven.pkg.github.com/OWNER/*

true





github

```

### Perform release

To perform a release, decide which version to increment and run the following Makefile target:

```shell
make release-
```

#### Continuing a failed release

If the `perform:prepare` Maven target failed, you can re-run the whole release again from beginning.

If the `perform:release` Maven target failed, you can resume it by:

```shell
cd target/checkout
mvn deploy -P docker-images-push -rf clearflask-
```

# Security Policy

## Reporting a Vulnerability

Please report to [email protected] for all vulnerabilities or questions regarding security. We will issue a bounty
for useful vulnerabilities to pay for your contribution, however we do not have a set standard on the amount and type of
vulnerabilities at this time.