Phonegap Android 应用程序对 HTTPS 的 ajax 请求失败，状态为 0 [英] Phonegap Android app ajax requests to HTTPS fail with status 0

问题描述

来自我在 Android 上的 PhoneGap/Cordova 应用程序的 Ajax HTTPS 请求莫名其妙地失败，状态 = 0.它仅在使用发布密钥签署应用程序时出现(即从 ADT 导出)，但在使用调试密钥签名时不出现(直接在模拟器或手机中运行).

Ajax HTTPS requests from my PhoneGap/Cordova app on Android inexplicably fail with status=0. It appears only when signing the app with the release key (i.e., exporting from ADT), but doesn't appear when signing with debug key (running directly in emulator or phone).

request = new XMLHttpRequest()
request.open "GET", "https://some.domain/", true
request.onreadystatechange = ->
  console.log "** state = " + request.readyState
  if request.readyState is 4
      console.log "** status = " + request.status

request.send()

总是输出

** state = 4
** status = 0

我是从 Play 商店安装应用程序还是使用 adb 实用程序安装该应用程序都没有关系.我认为它可以与证书相关联，因为并非所有 HTTPS 域都以这种方式失败.

It doesn't matter if i install the app from Play Store or with adb utility. I presume it could be connected with the certificate, since not all HTTPS domains fail this way.

推荐答案

当请求的 URL 响应错误或自签名证书时会发生这种情况.在测试或将应用分发给朋友时，在 AndroidManifest.xml 中设置 <application android:debuggable="true"...> 就足够了——它会自动绕过证书错误.

It happens when the requested URL responds with an erroneous or self-signed certificate. While testing or distributing the app to friends, setting <application android:debuggable="true"...> in AndroidManifest.xml is enough — it automatically bypasses certificate errors.

但 Google Play 商店不接受带有 android:debuggable="true" 的 APK.首先，证书当然需要固定.但是，当发生这种情况时，以下是 PhoneGap/Cordova 3 的解决方法:

But Google Play Store will not accept an APK with android:debuggable="true". First of all, the certificates, of course, need to be fixed. But while that happens, here is a workaround for PhoneGap/Cordova 3:

1. 在您的应用程序包中为 CordovaWebViewClient 创建一个子类:

public class SSLAcceptingCordovaWebViewClient extends CordovaWebViewClient {
    public SSLAcceptingCordovaWebViewClient(CordovaInterface cordova, CordovaWebView view) {
        super(cordova, view);
    }

    @Override
    public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
        handler.proceed();
    }
}

与 IceCreamCordovaWebViewClient 相同:

public class SSLAcceptingIceCreamCordovaWebViewClient extends IceCreamCordovaWebViewClient {
    public SSLAcceptingIceCreamCordovaWebViewClient(CordovaInterface cordova, CordovaWebView view) {
        super(cordova, view);
    }

    @Override
    public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
        handler.proceed();
    }
}

在 .java 中为 makeWebViewClient 添加覆盖:

@Override
protected CordovaWebViewClient makeWebViewClient(CordovaWebView webView) {
    if(android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.HONEYCOMB) {
        return new SSLAcceptingCordovaWebViewClient(this, webView);
    } else {
        return new SSLAcceptingIceCreamCordovaWebViewClient(this, webView);
    }
}

等等！ SSL 错误将被忽略.但是，永远不要使用错误的证书.尝试先修复它们，并仅在您用完其他解决方案时才使用这种肮脏的解决方法.

Et voilà! SSL errors will be disregarded. However, never use erroneous certificates. Try to fix them first and use this dirty workaround only when you run out of other solutions.

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