contactform-slack

Send contact form input to Slack with email validation and GeoLite2 information

Features

• Small web service
• Validate email string
• Block bad user-agent requests
• JSON error messages
• Block free email addresses
• Parse GeoLite2 info for Slack message
• Detect browser user-agent and is mobile
• Send Slack message of contact information

Example Slack Message Contents

URL: localhost:8080/contact

Name: Tim Ski

Email: tim@someemail.com

Message: Love the site!

Browser: Chrome

Mobile: false

Country: United States

City: McLean

State: Virginia

Build

# Binary Build
make build

# Docker Build
make dbuild

## or

# Go build

CGO_ENABLED=0 go build -a -installsuffix cgo -o contactform-slack -ldflags -s -w .

# Create self-signed certs
openssl req -x509 -newkey rsa:4096 -nodes -keyout ./localhost.key -out ./localhost.pem -days 365 -sha256 -subj '/CN=localhost'

# Docker build
sudo docker build . -t perlogix:contactform-slack

Docker Run

./env-file format

SLACK_URL=https://hooks.slack.com/services/...
REDIRECT_URL=https://somesite.com/contact
GEOLITE_DB=./GeoLite2-City.mmdb

make drun

# or 

sudo docker run --name=contactform-slack -d -p 127.0.0.1:8080:8080 --env-file ./env-file --restart always perlogix:contactform-slack

Example Request

curl -k -XPOST -H 'User-Agent: test-message' -F 'email=tim@someemail.com' -F 'name=tim ski' -F 'message=whats up' https://localhost:8080/contact

Responses

{"error":"Email not valid"}
{"error":"Missing form information"}