From 656b93b2488f4e6806b926de740eeb90e556b4ef Mon Sep 17 00:00:00 2001
From: Patrick Stevens <3138005+Smaug123@users.noreply.github.com>
Date: Wed, 29 Jan 2025 18:34:49 +0000
Subject: [PATCH] Add apps subdomain (#36)

* Add apps subdomain

* Fix formatting
---
 PulumiWebServer/Domain.fs                     | 21 ++--
 PulumiWebServer/Nix/apps/apps.nix             | 32 +++++++
 PulumiWebServer/Nix/apps/static/index.html    | 12 +++
 .../Nix/apps/static/middle_word.html          | 25 +++++
 .../Nix/apps/static/sha256sum.html            | 95 +++++++++++++++++++
 PulumiWebServer/Nix/configuration.nix         |  3 +
 6 files changed, 179 insertions(+), 9 deletions(-)
 create mode 100644 PulumiWebServer/Nix/apps/apps.nix
 create mode 100644 PulumiWebServer/Nix/apps/static/index.html
 create mode 100644 PulumiWebServer/Nix/apps/static/middle_word.html
 create mode 100644 PulumiWebServer/Nix/apps/static/sha256sum.html
diff --git a/PulumiWebServer/Domain.fs b/PulumiWebServer/Domain.fs
index 86a0ed7..54c5de7 100644
--- a/PulumiWebServer/Domain.fs
+++ b/PulumiWebServer/Domain.fs
@@ -95,6 +95,7 @@ type Address =
 
 type WellKnownSubdomain =
     | Nextcloud
+    | Apps
     | Gitea
     | Radicale
     | Rss
@@ -106,18 +107,20 @@ type WellKnownSubdomain =
 
     override this.ToString () =
         match this with
-        | Nextcloud -> "nextcloud"
-        | Gitea -> "gitea"
-        | Radicale -> "calendar"
-        | Rss -> "rss"
-        | Grafana -> "grafana"
-        | Woodpecker -> "woodpecker"
-        | WoodpeckerAgent -> "woodpecker-agent"
-        | PureGym -> "puregym"
-        | Whisper -> "whisper"
+        | WellKnownSubdomain.Nextcloud -> "nextcloud"
+        | WellKnownSubdomain.Apps -> "apps"
+        | WellKnownSubdomain.Gitea -> "gitea"
+        | WellKnownSubdomain.Radicale -> "calendar"
+        | WellKnownSubdomain.Rss -> "rss"
+        | WellKnownSubdomain.Grafana -> "grafana"
+        | WellKnownSubdomain.Woodpecker -> "woodpecker"
+        | WellKnownSubdomain.WoodpeckerAgent -> "woodpecker-agent"
+        | WellKnownSubdomain.PureGym -> "puregym"
+        | WellKnownSubdomain.Whisper -> "whisper"
 
     static member Parse (s : string) =
         match s with
+        | "apps" -> WellKnownSubdomain.Apps
         | "nextcloud" -> WellKnownSubdomain.Nextcloud
         | "gitea" -> WellKnownSubdomain.Gitea
         | "calendar" -> WellKnownSubdomain.Radicale
diff --git a/PulumiWebServer/Nix/apps/apps.nix b/PulumiWebServer/Nix/apps/apps.nix
new file mode 100644
index 0000000..54cbf16
--- /dev/null
+++ b/PulumiWebServer/Nix/apps/apps.nix
@@ -0,0 +1,32 @@
+{
+  lib,
+  config,
+  ...
+}: {
+  options = {
+    services.apps-config = {
+      domain = lib.mkOption {
+        type = lib.types.str;
+        example = "example.com";
+        description = lib.mdDoc "Top-level domain to configure";
+      };
+      subdomain = lib.mkOption {
+        type = lib.types.str;
+        example = "apps";
+        description = lib.mdDoc "Subdomain in which to put apps";
+      };
+      port = lib.mkOption {
+        type = lib.types.port;
+        description = lib.mdDoc "App server localhost port";
+        default = 9521;
+      };
+    };
+  };
+  config = {
+    services.nginx.virtualHosts."${config.services.apps-config.subdomain}.${config.services.apps-config.domain}" = {
+      forceSSL = true;
+      enableACME = true;
+      root = ./static;
+    };
+  };
+}
diff --git a/PulumiWebServer/Nix/apps/static/index.html b/PulumiWebServer/Nix/apps/static/index.html
new file mode 100644
index 0000000..70b5e9f
--- /dev/null
+++ b/PulumiWebServer/Nix/apps/static/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<body>
+    <h1>Apps</h1>
+    <p>This is a collection of single-page applications, mostly vomited out by Claude to solve small tasks.</p>
+    <ul>
+      <li><a href="/middle_word.html">Compute the number of words in a string and the middle word.</a></li>
+      <li><a href="/sha256sum.html">Compute SHA256sums, as one might wish to do to verify someone's precommitment to a piece of text.</a></li>
+    </ul>
+</body>
+</html>
+
diff --git a/PulumiWebServer/Nix/apps/static/middle_word.html b/PulumiWebServer/Nix/apps/static/middle_word.html
new file mode 100644
index 0000000..f768fe3
--- /dev/null
+++ b/PulumiWebServer/Nix/apps/static/middle_word.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<body>
+    <textarea id="input" rows="10" cols="50"></textarea><br>
+    <button onclick="analyzeText()">Ok</button>
+    <div id="result"></div>
+
+    <script>
+        function analyzeText() {
+            const text = document.getElementById('input').value;
+            const words = text.trim().split(' ').filter(word => word.length > 0);
+            const count = words.length;
+            const result = `Word count: ${count}`;
+
+            if (count % 2 === 1) {
+                const middleWord = words[Math.floor(count/2)];
+                document.getElementById('result').textContent =
+                    `${result}\nMiddle word: ${middleWord}`;
+            } else {
+                document.getElementById('result').textContent = result;
+            }
+        }
+    </script>
+</body>
+</html>
diff --git a/PulumiWebServer/Nix/apps/static/sha256sum.html b/PulumiWebServer/Nix/apps/static/sha256sum.html
new file mode 100644
index 0000000..7781b20
--- /dev/null
+++ b/PulumiWebServer/Nix/apps/static/sha256sum.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Base64 Decoder and SHA256 Calculator</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            max-width: 800px;
+            margin: 20px auto;
+            padding: 20px;
+        }
+        .container {
+            display: flex;
+            flex-direction: column;
+            gap: 20px;
+        }
+        .input-group {
+            display: flex;
+            flex-direction: column;
+            gap: 10px;
+        }
+        textarea {
+            width: 100%;
+            min-height: 100px;
+            padding: 8px;
+            margin-bottom: 10px;
+        }
+        button {
+            padding: 8px 16px;
+            background-color: #4CAF50;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+        }
+        button:hover {
+            background-color: #45a049;
+        }
+        #hashOutput {
+            font-family: monospace;
+            padding: 8px;
+            background-color: #f5f5f5;
+            border: 1px solid #ddd;
+            border-radius: 4px;
+            word-break: break-all;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="input-group">
+            <label for="base64Input">Base64 Input:</label>
+            <textarea id="base64Input" placeholder="Enter base64 encoded text here"></textarea>
+            <button onclick="decodeBase64()">Decode Base64</button>
+        </div>
+
+        <div class="input-group">
+            <label for="textInput">Text Input:</label>
+            <textarea id="textInput" placeholder="Enter text or see decoded base64 here"></textarea>
+            <button onclick="calculateSHA256()">Calculate SHA256</button>
+        </div>
+
+        <div class="input-group">
+            <label for="hashOutput">SHA256 Hash:</label>
+            <div id="hashOutput"></div>
+        </div>
+    </div>
+
+    <script>
+        function decodeBase64() {
+            try {
+                const base64Input = document.getElementById('base64Input').value;
+                const decoded = atob(base64Input);
+                document.getElementById('textInput').value = decoded;
+            } catch (error) {
+                alert('Invalid base64 input: ' + error.message);
+            }
+        }
+
+        async function calculateSHA256() {
+            try {
+                const text = document.getElementById('textInput').value;
+                const encoder = new TextEncoder();
+                const data = encoder.encode(text);
+                const hashBuffer = await crypto.subtle.digest('SHA-256', data);
+                const hashArray = Array.from(new Uint8Array(hashBuffer));
+                const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
+                document.getElementById('hashOutput').textContent = hashHex;
+            } catch (error) {
+                alert('Error calculating hash: ' + error.message);
+            }
+        }
+    </script>
+</body>
+</html>
diff --git a/PulumiWebServer/Nix/configuration.nix b/PulumiWebServer/Nix/configuration.nix
index 10d0314..924f34c 100644
--- a/PulumiWebServer/Nix/configuration.nix
+++ b/PulumiWebServer/Nix/configuration.nix
@@ -7,6 +7,7 @@
 in {
   imports = [
     ./sops.nix
+    ./apps/apps.nix
     ./radicale/radicale-config.nix
     ./gitea/gitea-config.nix
     ./miniflux/miniflux.nix
@@ -43,6 +44,8 @@ in {
   services.prometheus-config.domain-exporter-domains = [userConfig.domain];
   services.puregym-config.domain = userConfig.domain;
   services.puregym-config.subdomain = "puregym";
+  services.apps-config.subdomain = "apps";
+  services.apps-config.domain = userConfig.domain;
   # services.whisper-config.domain = userConfig.domain;
   # services.whisper-config.subdomain = "whisper";
 
