From 6f374efaaba2894c6c89f9aa92845c3c1104da26 Mon Sep 17 00:00:00 2001
From: sunnylqm <sunnylqm@gmail.com>
Date: Wed, 21 May 2025 11:11:04 +0800
Subject: [PATCH] add enhancedfetch for android <=7

---
 lib/main.ts  |  6 +++---
 lib/utils.ts | 31 +++++++++++++++++++++++++++----
 package.json |  2 +-
 3 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/lib/main.ts b/lib/main.ts
index fbd600a..80c717d 100644
--- a/lib/main.ts
+++ b/lib/main.ts
@@ -16,7 +16,7 @@ import {
   UpdateAvailableResult,
   UpdateEventsListener,
 } from './type';
-import { assertRelease, logger, promiseAny, testUrls } from './utils';
+import { assertRelease, enhancedFetch, logger, promiseAny, testUrls } from './utils';
 export { setCustomEndpoints };
 const {
   version: v,
@@ -153,7 +153,7 @@ export async function checkUpdate(APPKEY: string) {
   };
   let resp;
   try {
-    resp = await fetch(getCheckUrl(APPKEY), fetchPayload);
+    resp = await enhancedFetch(getCheckUrl(APPKEY), fetchPayload);
   } catch (e: any) {
     report({
       type: 'errorChecking',
@@ -164,7 +164,7 @@ export async function checkUpdate(APPKEY: string) {
       try {
         resp = await promiseAny(
           backupEndpoints.map((endpoint) =>
-            fetch(getCheckUrl(APPKEY, endpoint), fetchPayload),
+            enhancedFetch(getCheckUrl(APPKEY, endpoint), fetchPayload),
           ),
         );
       } catch {}
diff --git a/lib/utils.ts b/lib/utils.ts
index d0b7adc..7272e36 100644
--- a/lib/utils.ts
+++ b/lib/utils.ts
@@ -33,15 +33,15 @@ const ping =
     : async (url: string) => {
         let pingFinished = false;
         return Promise.race([
-          fetch(url, {
+          enhancedFetch(url, {
             method: 'HEAD',
           })
-            .then(({ status, statusText }) => {
+            .then(({ status, statusText, url: finalUrl }) => {
               pingFinished = true;
               if (status === 200) {
-                return url;
+                return finalUrl;
               }
-              logger('ping failed', url, status, statusText);
+              logger('ping failed', finalUrl, status, statusText);
               throw new Error('Ping failed');
             })
             .catch((e) => {
@@ -73,3 +73,26 @@ export const testUrls = async (urls?: string[]) => {
   logger('all ping failed, use first url:', urls[0]);
   return urls[0];
 };
+
+export const isAndroid70AndBelow = () => {
+  // android 7.0 and below devices do not support letsencrypt cert
+  // https://letsencrypt.org/2023/07/10/cross-sign-expiration/
+  return Platform.OS === 'android' && Platform.Version <= 24;
+};
+
+export const enhancedFetch = async (
+  url: string,
+  params: Parameters<typeof fetch>[1],
+) => {
+  return fetch(url, params).catch((e) => {
+    logger('fetch error', url, e);
+    if (isAndroid70AndBelow()) {
+      logger(
+        `try fallback to http because android version: ${Platform.Version}`,
+      );
+      return fetch(url.replace('https', 'http'), params);
+    } else {
+      throw e;
+    }
+  });
+};
diff --git a/package.json b/package.json
index 485252c..dcf1114 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-update",
-  "version": "8.5.6",
+  "version": "8.5.7",
   "description": "react-native hot update",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",