While loading a URL in webView there are multiple of HTTP request made while loading a single page. Is there a way to track those requests? The closest I could get is to use
public boolean shouldOverrideUrlLoading(WebView view, String url)
method to view the URL requests made but could not capture the packets each page make.
I know this Question has already been asked years ago but couldn't find a solid answer that I can depend. Any help would be helpful
You can override
public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request)
method of WebViewClient. This will be called everytime javascript code requests any resource inside Webview.
Related
I have an url which has to be loaded in web view, but I need to pass an header to the request.
I tried using setting headers to web view, using HashMap but it didn't worked.
I found the solutions such as web view intercepting client but did not get a proper example of how to load the url.
Can anyone suggest how to achieve it.
Try
loadUrl(String url, Map<String, String> extraHeaders)
For adding headers to resources loading requests, make custom WebViewClient and override:
API 24+:
WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request)
or
WebResourceResponse shouldInterceptRequest(WebView view, String url)
I want to analyze all requests sent from WebView.
For this, I have WebViewClient and shouldInterceptRequest overridden.
I can see requests, but I would like to see what webView will receive in response. I need this for analysis, I do not have need to change response.
Line bellow gives null,
WebResourceResponse response = super.shouldInterceptRequest(view, request);
I know, that shouldInterceptRequest() return null, means that no one intercept the request, and the webView will load the origin URL.
But, I would like to see this WebResourceResponse and do not implement it by myself.Thanks!!
I want to add custom Headers to requests in the webview. I think it should be possible to do it in shouldInterceptRequest.. Since my minimum API level is less than 21 shouldInterceptRequest (final WebView view, final String url) is also called and therefore I need to add headers here as well but I am not sure how.
#Override
public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
request.getRequestHeaders().put("ClientId", "ANDROID");
request.getRequestHeaders().put("Tokon", token);
}
return super.shouldInterceptRequest(view, request);
}
#Override
public WebResourceResponse shouldInterceptRequest(final WebView view, final String url) {
// I need to updated the header here
return super.shouldInterceptRequest(view, url);
}
There is a suggestion to use view.loadUrl(url,headers) but this does not work either.
The difficulty you run into with pre API 21 is the shouldInterceptRequest only provides the intercepted URL and the webview without the body of the request. I ran into this same issue and discovered the following GitHub repository
https://github.com/KeejOow/android-post-webview
The important part of this project is interceptheader.html in the assets folder. This html contains javascript that is inserted at the top of every html response the webview loads. This JS intercepts every form and ajax submission from the page and loads the body data into a java class. Next the shouldInterceptRequest method determines whether the request is POST or GET (you only get those two, unfortunately) based on whether there is any data in the body.
Finally, once it has marshalled all the relevant information, it performs the request by itself (instead of passing it off to Android), returning the resulting WebResourceResponse.
Be warned that the repository has seen some aging. I had to do some fiddling to get pages to work as I wanted them.
The best place to add your headers is in the InterceptingWebViewClient class under shouldInterceptRequest.
conn.setRequestProperty("header-name", value);
In an Android web view, I'm trying to get the URL of webpages visited by the user. I'm using:
public void onPageStarted(WebView view, String url, Bitmap favicon)
public boolean shouldOverrideUrlLoading(WebView view, String url)
public void onPageFinished(WebView view, String url)
Unfortunately, for certain cases all of the above return me the wrong URL. For example when I'm on http://www.yahoo.com I get the correct URL, but once I click on any news article, the URL returned to me is still http://www.yahoo.com.
Just to confirm, I opened http://www.yahoo.com on Chrome, and then tapped the same articles to check whether Chrome gets the correct URLs. It does, which means it's possible and I'm probably missing something fundamental.
How can I get that URL in my own webview? Note that I have tried the JavaScript interface as well, but it's been of no use.
After looking around, I am unable to find an easy way to intercept requests made by the WebView and change the URL.
For example, I would like requests *.melange to actually route to localhost:8080 while keeping the original URL as the Host header.
It appears, at first glance, that the easiest method to achieve this sort of URL rewriting would be to use the "new" (API Level 21 or higher) shouldInterceptRequest, copy the values out of the WebResourceRequest to make the HTTP request manually then return a WebResourceResponse with the correct values. In my mind, there "should" be an easier way to do this.
Please let me know if I am missing something obvious. Thanks!
private class MyWebviewclient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(url.contains("melange"){
String newUrl = "http://localhost:8080"+url.split("melange")[1];
loadUrl(newUrl);
}
return false;
}
}
Now,
yourWebView.setWebViewClient(new MyWebviewclient());