Add resource page functions

lib/resourcesPages.ts

@@ -0,0 +1,47 @@
+import fs from "fs";
+import path from "path";
+
+import matter from "gray-matter";
+import { processMarkdownAsHTML } from "@/utils/remarkUtils";
+
+const contentDirectory = path.join(process.cwd(), "resources");
+
+export async function checkIfSlugIsValid(slug: string) {
+  if (!slug || typeof slug !== "string") {
+    return false;
+  }
+
+  // Check that the slug does not contain any slashes to prevent directory traversal
+  if (slug.includes("/") || slug.includes("\\")) {
+    return false;
+  }
+
+  const fullPath = path.join(contentDirectory, `${slug}.md`);
+
+  try {
+    await fs.promises.access(fullPath);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+export async function getContentData(slug: string) {
+  const fullPath = path.join(contentDirectory, `${slug}.md`);
+
+  const fileContents = await fs.promises.readFile(fullPath, "utf8");
+
+  if (!fileContents) {
+    throw new Error(`Page with slug "${slug}" does not exist.`);
+  }
+
+  const matterResult = matter(fileContents);
+
+  const contentHtml = await processMarkdownAsHTML(matterResult.content);
+
+  return {
+    slug,
+    contentHtml,
+    ...(matterResult.data as { title: string; description: string }),
+  };
+}