Replace Go script with Node.js implementation

1 files changed, 58 insertions, 0 deletions

diff --git a/netlify-preview.js b/netlify-preview.js
new file mode 100644
index 0000000..5b37433
--- /dev/null
+++ b/netlify-preview.js
@@ -0,0 +1,58 @@
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+
+const netlifyConfig = 'netlify.toml';
+
+// Read the netlify.toml file
+fs.readFile(path.resolve(__dirname, netlifyConfig), 'utf8', (err, data) => {
+  if (err) {
+    console.error('Error reading file: ', err);
+    return;
+  }
+
+  // Split the file content into lines
+  const lines = data.split('\n');
+
+  // Process each line
+  const processedLines = lines.map((line) => {
+    // -> default-src 'self';
+    // <- default-src 'self' blob:;
+    line = line.replace(/(default-src) ('self')(;)/, '$1 $2 blob:$3');
+
+    // -> style-src 'self' cdn.hypothes.is;
+    // <- style-src 'self' 'unsafe-inline' cdn.hypothes.is;
+    line = line.replace(/(style-src) ('self') (cdn\.hypothes\.is)(;)/, '$1 $2 $3 \'unsafe-inline\'$4');
+
+    // -> media-src 'self';
+    // <- media-src 'self' blob: https://app.netlify.com;
+    line = line.replace(/(media-src) ('self')(;)/, '$1 $2 blob: https://app.netlify.com$3');
+
+    // -> frame-src hypothes.is;
+    // <- frame-src hypothes.is app.netlify.com;
+    line = line.replace(/(frame-src) (hypothes\.is)(;)/, '$1 $2 app.netlify.com$3');
+
+    // -> script-src 'self' www.googletagmanager.com hypothes.is cdn.hypothes.is;
+    // <- script-src 'self' www.googletagmanager.com hypothes.is cdn.hypothes.is netlify-cdp-loader.netlify.app;
+    line = line.replace(
+      /(script-src) ('self' www\.googletagmanager\.com hypothes\.is cdn\.hypothes\.is)(;)/,
+      '$1 $2 netlify-cdp-loader.netlify.app$3'
+    );
+
+    return line;
+  });
+
+  // Join the processed lines back into a single string
+  const output = processedLines.join('\n');
+
+  // Write the modified content back to the file
+  fs.writeFile(path.resolve(__dirname, netlifyConfig), output, 'utf8', (err) => {
+    if (err) {
+      console.error('Error writing file:', err);
+      return;
+    }
+
+    console.log('Done');
+  });
+});