You might want to disable debug mode (aka. show_exceptions setting) unless you want people to have access to sensitive information like the one contained in the "firebase.rb" file or "/root/nginx-unicorn-sinatra/app.rb". Sending an invalid User-Agent as part of the HTTP requests (like one with Unicode characters) makes the web application fail and respond with a dump of the global _SERVER variable with additional information provided by the Sinatra framework:
A tiny serverless computing platform for ruby developers. You can Run/Schedule single-purpose ruby scripts on a REST endpoint. I used Redis, Sinatra, Sidekiq to develop the stack, Its running on unicorn & Nginx. Ruby version is 2.3.1p112. Let me know your views on it.
I'm reading the description and reading it, and I still can't make heads or
tails of what does it do and when would I want to use it. Publishing text
files that happen to be code? Running a parametrized script on a request,
RPC-like? Running a script that was supplied in request, so people don't need
to find code injection attacks, but simply submit their code? Something
different?
What it do? --> Just upload your code to serverlessly.io. You receive a REST endpoint. You can trigger your code via HTTP verbs. GET for immediate response, POST for scheduling the code.
When You should use? --> If you developing one of these; Mobile apps, IOT, REST endpoints for Webapps; You will consider solutions like serverlessly, AWS lambda, Google CF over building own cloud infrastructure with ec2 or Google CE. Also, there are projects that consider separating out Compute/Memory intense tasks, Single-purpose stand-alone tasks from the stack to REST endpoint.
What are use-cases for individual rubyist ? ---> Building web crawlers, Program to send bulk emails or schedule emails, Processing text, Converters(csv, pdf..etc), A cool REST endpoint that other can use.
To answer your question, first one is right i.e. Publishing text files that happen to be code