修改Backblaze桶地址和访问令牌

worker.js

addEventListener("fetch", (event) => {
  event.respondWith(handleRequest(event.request));
});
addEventListener("scheduled", (event) => {
  event.waitUntil(updateRule());
});

const getB2Token = async () => {
  const res = await fetch(
    "https://api.backblazeb2.com/b2api/v2/b2_authorize_account",
    {
      headers: {
        Authorization: "Basic " + btoa(B2KeyID + ":" + B2AppKey),
      },
    }
  );
  const data = await res.json();
  return data.authorizationToken;
};

const updateRule = async () => {
  const b2Token = await getB2Token();

  const res = await fetch(
    `https://api.cloudflare.com/client/v4/zones/${CfZoneID}/rulesets/${CfRulesetID}/rules/${CfRuleID}`,
    {
      method: "PATCH",
      headers: {
        "Authorization": `Bearer ${CfAuthKey}`
      },
      body: 
      `{
        "description": "修改Backblaze桶地址和访问令牌",
        "action": "rewrite",
        "expression": "(http.host eq \\\"${CfHostname}\\\" and not starts_with(http.request.uri.path, \\\"/file/${B2BucketName}\\\"))",
        "action_parameters": {
          "uri": {
              "path": {
                  "expression": "concat(\\\"/file/${B2BucketName}\\\", http.request.uri.path)"
              },
              "query": {
                  "value": "Authorization=${b2Token}"
              }
          }
        }
      }`,
    }
  );

  const data = await res.text();
  console.log(data);
  return data;
};

async function handleRequest(request) {
  const data = await updateRule();
  return new Response(data);
}