Simple server apps to send mail

Three examples for logging and sending emails using smtp when receiving a POST request with a "mailto" key. Examples are in php, Node.js and Python (flask). The apps expect a posted JSON (content-type:application/json) in a format like:

{
    "mailto": "[email protected]",
    "message": "string",
    "datetime": "string",
    "location": {
        "address": "string",
        "latitude": float,
        "longitude": float
    }
}

The mailto key/value pair is optional, it can also be set as a GET argument (http(s)://your.server.com/prefix?mailto=[email protected]).

Libraries used for mail:

• php: phpmailer, licence: LGPL
• Node.js: nodemailer, licence: MIT
• Python: Flask-Mail, licence: BSD 3-clause

Instructions:

create a .env (see: .env.template) file in the same folder with index.(php/js/py) with:

SMTP_SERVER=smtp.eaxmple.com
SMTP_PORT=587
[email protected]
SMTP_PASSWORD=_secret_
SMTP_AUTH=true
SMTP_SECURE=tls|ssl
SMTP_FROM='User First Name - Last Name'
SMTP_MAIL_SUBJECT='Mail Subject'

Node.js:

cd node && yarn # or npm install    
yarn start # or npm run start

php:

make sure composer is installed

cd php && composer install

Python3:

in virtualenv or not:

cd python && pip install -r requirements.txt

start server with

uwsgi --ini mailer.ini

Example nginx server config parts:

# PHP:
root /path/to/simple-mailer/php;
index index.php index.html index.htm;
location ~ \.php$ {
    fastcgi_pass        unix:///path/to/php-fpm.sock;
    fastcgi_index       index.php;
    include             fastcgi_params;
    fastcgi_param       SCRIPT_FILENAME $document_root$fastcgi_script_name;
}	

# Python / uwsgi:	
location / {
    include             uwsgi_params;
    uwsgi_pass          unix:///path/to/simple-mailer/python/uwsgi-mailer.sock;
    uwsgi_ignore_client_abort on;
}

# NODE JS:
location / {
    proxy_set_header        Host $host;
    proxy_set_header        X-Real-IP $remote_addr;
    proxy_set_header        X-Forwarded-Proto $scheme;
    proxy_set_header        X-Forwarded-For $remote_addr;
    proxy_pass              http://localhost:3000/;
    proxy_cache_bypass      $http_upgrade;
    proxy_redirect          off;
}