Webmention action

.github/workflows/webmentions.yml

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+name: Webmentions
+
+on:
+  schedule:
+    - cron: "0 */6 * * *"
+
+jobs:
+  webmentions:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@master
+
+      - name: Set up Node.js
+        uses: actions/setup-node@master
+        with:
+          node-version: 12.x
+
+      - name: Fetch webmentions
+        env:
+          WEBMENTIONS_TOKEN: ${{ secrets.WEBMENTIONS_TOKEN }}
+        run: node ./webmentions.js
+
+      - name: Commit to repository
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          COMMIT_MSG: |
+            Fetch webmentions
+            skip-checks: true
+        run: |
+          git config user.email "git@fundor333.com"
+          git config user.name "fundor333"
+          git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/fundor333/fundor333.github.io.git
+          git checkout master
+          git add .
+          git diff --quiet && git diff --staged --quiet || (git commit -m "${COMMIT_MSG}"; git push origin master)

webmentions.js

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+const fs = require("fs");
+const https = require("https");
+ 
+fetchWebmentions().then(webmentions => {
+  webmentions.forEach(webmention => {
+    const slug = webmention["wm-target"]
+      .replace("https://fundor333.com/", "")
+      .replace(/\/$/, "")
+      .replace("/", "--");
+ 
+    const filename = `${__dirname}/data/webmentions/${slug}.json`;
+ 
+    if (!fs.existsSync(filename)) {
+      fs.writeFileSync(filename, JSON.stringify([webmention], null, 2));
+ 
+      return;
+    }
+ 
+    const entries = JSON.parse(fs.readFileSync(filename))
+      .filter(wm => wm["wm-id"] !== webmention["wm-id"])
+      .concat([webmention]);
+ 
+    entries.sort((a, b) => a["wm-id"] - b["wm-id"]);
+ 
+    fs.writeFileSync(filename, JSON.stringify(entries, null, 2));
+  });
+});
+ 
+function fetchWebmentions() {
+  const token = process.env.WEBMENTIONS_TOKEN;
+ 
+  const since = new Date();
+  since.setDate(since.getDate() - 3);
+ 
+  const url =
+    "https://webmention.io/api/mentions.jf2" +
+    "?domain=fundor333.com" +
+    `&token=${token}` +
+    `&since=${since.toISOString()}` +
+    "&per-page=999";
+ 
+  return new Promise((resolve, reject) => {
+    https
+      .get(url, res => {
+        let body = "";
+ 
+        res.on("data", chunk => {
+          body += chunk;
+        });
+ 
+        res.on("end", () => {
+          try {
+            resolve(JSON.parse(body));
+          } catch (error) {
+            reject(error);
+          }
+        });
+      })
+      .on("error", error => {
+        reject(error);
+      });
+  }).then(response => {
+    if (!("children" in response)) {
+      throw new Error("Invalid webmention.io response.");
+    }
+ 
+    return response.children;
+  });
+}