#Maschinendeck State API

Get the state of the hackerspace.

##Endpoints

###spaceapi.php

Returns JSON complying to the SpaceAPI v13.

###update.php

POST to update the state of the hackerspace. You can only update one property per request.

• property=[values] What does this property do?
• open=[0,1] Is the hackerspace open (1) or closed (0)

####Example

Request

curl https://state.fancyspace.org/update.php -u username:password -d open=0

Response

{
	"status":200, 	//HTTP status code
	"success":true 	//Indicator for success of request
}

Error

{
	"status":400,	//HTTP status code
	"success":false	//Indicator for success of request
	"errorMessage":"Could not find the parameter 'open'"	//An error message in English that can be displayed to the user
}

#Setup

• Copy data/spaceapi_template.json.sample to data/spaceapi_template.json and adjust the values for your hackerspace.
• Copy config.php.sample to config.php and adjust the values for your hackerspace.
• Ensure that the process that'll run update.php has read-write-permissions to data directory
• Copy .htaccess.sample to .htaccess
• Run htpasswd -c .htpasswd apiuser. Enter the password for apiuser on prompt. This creates the .htpasswd file in your current directory.
• Adjust the path to .htpasswd in your .htaccess in line AuthUserFile ...

A bit clunky but this way you don't need a database, etc.

##Implementation

###update.php

• Check for correct request parameters
• Read data/space_state.json and decode it
• If newValue != currentValue
  • Get a write file handle
  • Get an exclusive lock on that file handle
  • Change value in JSON
  • Encode JSON and write to disk

####Responses

Responses are handled by respond($status, $errorMsg, $callback=null).

It sets HTTP headers, creates a JSON response and optionally calls a callback before it calls exit().

→ Important: Code after a call to respond(...) will not be run.

###Security & Authentication

Important: update.php does not implement its own authentication.

It is recommended to use HTTPS Client authentication or HTTPS + HTTP Authentication. Whilst the former is more elegant, the latter can be configured using .htaccess files.

You can find a sample .htaccess file in the project directory.