feat: adds spaceapi endpoint (#57)

A basic implementation of the https://spaceapi.io/ specification.
Tested working door sensor status. Added basic info about us, our website, git forge and wiki.

Co-authored with @sindos and @oysteikt.

Reviewed-on: #57
Co-authored-by: Felix Albrigtsen <felix@albrigtsen.it>
Co-committed-by: Felix Albrigtsen <felix@albrigtsen.it>

nix/module.nix

@@ -198,6 +198,10 @@ in
             fastcgi_pass unix:${config.services.phpfpm.pools."pvv-nettsiden".socket};
           '';
 
+          "= /spaceapi.php".extraConfig = ''
+            add_header Content-Type application/json;
+          '';
+
           # based on https://simplesamlphp.org/docs/stable/simplesamlphp-install.html#configuring-nginx
           "^~ /simplesaml/" = {
             alias = "${finalPackage}/${finalPackage.passthru.simplesamlphpPath}/public/";

www/spaceapi.php

@@ -0,0 +1,68 @@
+<?php
+
+require_once dirname(__DIR__) . implode(DIRECTORY_SEPARATOR, ['', 'inc', 'include.php']);
+
+$pdo = new \PDO($DB_DSN, $DB_USER, $DB_PASS);
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+$door = new \pvv\side\Door($pdo);
+$doorEntry = (object)($door->getCurrent());
+
+?>
+{
+  "api_compatibility": ["14"],
+  "space": "Programvareverkstedet",
+  "logo": "https://git.pvv.ntnu.no/assets/img/logo.png",
+  "url": "https://www.pvv.ntnu.no/",
+  "location": {
+    "ext_campus": "NTNU Gløshaugen",
+    "ext_room_name": "Oppredning/Gruvedrift, Floor 2, Room 247",
+    "ext_mazemap": "https://link.mazemap.com/2n2HWa7H",
+    "address": "Sem Sælands vei 1, 7034 Trondheim, Norway",
+    "timezone": "Europe/Oslo",
+    "lon": 10.242,
+    "lat": 63.250
+  },
+  "contact": {
+    "irc": "irc://irc.pvv.ntnu.no/pvv",
+    "email": "pvv@pvv.ntnu.no",
+    "ext_discord": "https://discord.gg/8VTBr6Q",
+    "gopher": "gopher://isvegg.pvv.ntnu.no",
+    "matrix": "#pvv:pvv.ntnu.no"
+  },
+  "issue_report_channels": ["email"],
+  "state": {
+    "open": <?php echo($doorEntry->open ? "true" : "false"); ?>,
+    "lastchange": <?php echo($doorEntry->time ? $doorEntry->time : 0); ?>,
+    "message": "<?php echo($doorEntry->open ? "open for public, members are present" : "closed"); ?>"
+  },
+  "feeds": {
+    "wiki": {
+      "type": "atom",
+      "url": "https://www.pvv.ntnu.no/w/api.php?hidebots=1&urlversion=1&action=feedrecentchanges&feedformat=atom"
+    },
+    "calendar": {
+      "type": "html",
+      "url": "https://www.pvv.ntnu.no/hendelser/"
+    }
+  },
+  "projects": [
+    "https://github.com/Programvareverkstedet/",
+    "https://git.pvv.ntnu.no/",
+    "https://www.pvv.ntnu.no/prosjekt/"
+  ],
+  "links": [
+    {
+      "name": "YouTube",
+      "url": "https://www.youtube.com/@pvvntnu5640"
+    },
+    {
+      "name": "LinkedIn",
+      "url": "https://www.linkedin.com/company/pvvntnu/"
+    },
+    {
+      "name": "Facebook",
+      "url": "https://www.facebook.com/pvvntnu/"
+    }
+  ]
+}