feat: add support for keybase.io

close #21, fix #21

Signed-off-by: Certseeds <51754303+Certseeds@users.noreply.github.com>

src/components/linkes/keybase.io.ts

@@ -0,0 +1,40 @@
+interface keybase_io_key {
+  key_id?: string,
+  raw_key?: string,
+}
+
+const getKeybaseKey: (username: string) => Promise<string> = async (username: string) => {
+  if ((username?.length ?? 0) > 0) {
+    const url = `https://keybase.io/_/api/1.0/user/lookup.json?username=${username}&fields=public_keys`
+    const ownKey = await fetch(url, {
+      method: 'get',
+      headers: { 'Accept': 'application/json', },
+    }).then(body => body.json())
+      .then(json => {
+        const value = getBundleKey(json);
+        return value.raw_key
+      }) ?? '';
+    return ownKey;
+  }
+  return '';
+}
+
+const getBundleKey: (keys: any) => keybase_io_key = (keys: any) => {
+  // keys is a {}, not []
+  if (0 === (Object.keys(keys).length ?? 0)) {
+    return {};
+  } else if (keys["status"]["code"] !== 0 || keys["status"]["name"] !== "OK") {
+    console.log("keybase.io api error");
+    return {};
+  }
+  const primary = keys["them"]["public_keys"]["primary"];
+  console.log(`mtime: ${primary["mtime"]}, ctime: ${primary["ctime"]}, etime: ${primary["etime"]}`);// TODO, what is those means?
+  return {
+    key_id: primary["kid"],
+    raw_key: primary["bundle"],
+
+  }
+};
+
+export type { keybase_io_key };
+export { getKeybaseKey, getBundleKey };

src/components/linktokey.ts

@@ -1,14 +1,17 @@
 import { getGithubKey } from '@/components/linkes/github';
+import { getKeybaseKey } from './linkes/keybase.io';
 
 
 const fetchKeyByUrl: (prefix: string, path: string) => Promise<string> = async (prefix: string, path: string) => {
-  if (prefix === 'github') {
-    return await getGithubKey(path);
-  } else if (prefix.length === 0) {
+  if (prefix.length === 0) {
     const defaultKey = await fetch('https://blog.certseeds.com/public.key', {
       method: 'get',
     }).then(body => body.text())
     return defaultKey
+  } else if (prefix === 'github') {
+    return await getGithubKey(path);
+  } else if (prefix === 'keybase.io') {
+    return await getKeybaseKey(path);
   } else if (prefix === 'raw') {
     console.log('please ensure the cors rules allow this page')
     if (!path.startsWith('https')) {