[GitHub] [cordova-android] regnete edited a comment on issue #1329: WebViewAssetLoader: Application private path Raw File access at JavaScript using XMLHttpRequest fails.

[GitBox <gi...@apache.org>]

regnete edited a comment on issue #1329:
URL: https://github.com/apache/cordova-android/issues/1329#issuecomment-924648282


   Facing similiar issue when using an absolute file url:
   ```javascript
   lFileUrl = 'file:///data/user/0/com.company.stub/files/myfolder/IMG-20210826-204423558thumb.jpg'
   xhr.open("GET", lFileUrl, true);
   xhr.onload = function() {
      console.log('loaded');
   }
   try {
       xhr.send();
   } catch (e) {
       console.error(e);
   }
   ```
   Error message on console:
   
   `Not allowed to load local resource: file:///data/user/0/com.company.stub/files/myfolder/IMG-20210826-204423558thumb.jpg`
   
   Solution could be to provide something similar to `window.WkWebView.convertFilePath('your/file/path');` from `cordova-ios`.
   see https://github.com/apache/cordova-ios/blob/715c2dbfb273fb33721e8cf3f989ce7b20892d32/cordova-js-src/plugin/ios/wkwebkit.js#L28
   
   ```javascript
   
   async function resolveLocalFileSystemURL(uri){
           return new Promise(function (resolve, reject) {
               window.resolveLocalFileSystemURL(uri, resolve, (cause) => {
                   if (cause.code == FileError.NOT_FOUND_ERR)
                       resolve(null);
                   else reject({cause, uri, message: "cannot resolve local file system url"})
               });
           });
   }
   
   async function convertFilePath(uri){
      if(uri.startsWith('file://'){
         const resolved = await this.utils.resolveLocalFileSystemURL(uri);
          uri = resolved.toInternalURL().replace("cdvfile://localhost/", "https://" + location.host + "/");
      }
      return uri;
   }
   
   lFileUrl = await convertFilePath('file:///data/user/0/com.company.stub/files/myfolder/IMG-20210826-204423558thumb.jpg');
   xhr.open("GET", lFileUrl, true);
   xhr.onload = function() {
      console.log('loaded');
   }
   try {
       xhr.send();
   } catch (e) {
       console.error(e);
   }
   ```
   Error message in chrome debugger network panel: `net::ERR_CONNECTION_REFUSED`
   
   Looks like https://github.com/apache/cordova-android/blob/015db819aed3f35892d2b6035781ea4bd752149d/framework/src/org/apache/cordova/engine/SystemWebViewClient.java is missing a https://developer.android.com/reference/androidx/webkit/WebViewAssetLoader.InternalStoragePathHandler to make `file:///data/user/0/com.company.stub/files` available at `https://localhost/files/....`. The solution should pbe able to provide access to all locations mentioned here: https://github.com/apache/cordova-plugin-file#android-file-system-layout


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