[GitHub] [cordova-plugin-file-transfer] rolinger opened a new issue #296: Error in success callbackID on iOS

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

rolinger opened a new issue #296:
URL: https://github.com/apache/cordova-plugin-file-transfer/issues/296


   # Bug Report
   File is successfully downloading but getting an error the success callback
   
   ## Problem
   ```
   [{"isFile":false,"isDirectory":true,"name":"","fullPath":"/","filesystem":"<FileSystem: library-nosync>","nativeURL":"file:///var/mobile/Containers/Data/Application/900BE112-444C-4F33-84AF-F745E8EE0C91/Library/NoCloud/"}]
   [{"isFile":false,"isDirectory":true,"name":"download","fullPath":"/download/","filesystem":"<FileSystem: library-nosync>","nativeURL":"file:///var/mobile/Containers/Data/Application/900BE112-444C-4F33-84AF-F745E8EE0C91/Library/NoCloud/download/"}]
    pathB1: file:/var/mobile/Containers/Data/Application/900BE112-444C-4F33-84AF-F745E8EE0C91/Library/NoCloud/download/Word1.DOC
   File Transfer downloading file...
   [CDVFileTransferDelegate connection:didReceiveResponse:] [Line 771] Streaming to file /var/mobile/Containers/Data/Application/900BE112-444C-4F33-84AF-F745E8EE0C91/Library/NoCloud/download/Word1.DOC
   File Transfer Finished with response code 200
   [CDVFileTransferDelegate connectionDidFinishLoading:] [Line 637] File Transfer Download success
   Error in Success callbackId: FileTransfer1502202275 : TypeError: null is not an object (evaluating 'result.lengthComputable')
   win@ionic://myApp/plugins/cordova-plugin-file-transfer/www/FileTransfer.js:202:26
   callbackFromNative@ionic://attendago/cordova.js:295:63
   ionic://myApp/plugins/cordova-plugin-ionic-webview/src/www/ios/ios-wkwebview-exec.js:129:35
   promiseReactionJob@[native code]
   ```
   
   
   ### What is expected to happen?
   Its supposed to cleanly download the file.
   
   
   ### What does actually happen?
   The above error is thrown, the file can't be found anywhere in iOS folders and the app page breaks because the JS error was thrown.
   
   
   ### Command or Code
   Here is the code I am using to download the file.  It all works just fine on Android, but not on iOS.  I am using the `codorva-plugin-file-downloader` plugin which is a wrapper that uses this plugin.  The error being thrown is from this plugin.
   ```
   $scope.downloadLink = function(fileInfo) {
       if (fileInfo.cType == 2) {
          var dir = "images" ;
       } else {
         var dir = "docs" ;
       }
       var urlFile = "https://portal.attendago.com/files/C" +fileInfo.cID+ "/" +dir+ "/" + fileInfo.cfInfo ;
       var newFileName = fileInfo.cfName+ "." +fileInfo.cfExt ;
       let storage_location = '' ;
   
       if (ionic.Platform.isIOS()) {
          //storage_location = cordova.file.documentsDirectory ;
          storage_location = cordova.file.dataDirectory ;
       } else if (ionic.Platform.isAndroid()) {
          storage_location = 'file:///storage/emulated/0/' ;
       }
       let downloading = function(event) {
         var data = event.data ;
         if (data[0] != 100) {
           var msg = "Downloading file: " +data[0]+ "%" ;
           var color = "red" ;
         } else {
           var msg = "DOWNLOAD COMPLETE!" ;
           var color = "green" ;
         }
         $scope.startStatus(fileInfo.cfID,color,msg) ;
       }
       let downloaded = function(event) {
         setTimeout(function() {
           $scope.endStatus(fileInfo.cfID) ;
           event.target.removeEventListener(event.name,downloaded) ;
         },5000) ;
       }
       let initialized = function(event) {
         downloader.get(urlFile,null,newFileName) ;
         event.target.removeEventListener(event.name,initialized) ;
       } ;
       document.addEventListener('DOWNLOADER_initialized', initialized) ;
       document.addEventListener('DOWNLOADER_downloadProgress',downloading) ;
       document.addEventListener('DOWNLOADER_downloadSuccess', downloaded) ;
       document.addEventListener('DOWNLOADER_gotFileSystem', function() {
         console.log(event.data) ;
       }) ;
       document.addEventListener('DOWNLOADER_gotFolder', function() {
         console.log(event.data) ;
       }) ;
       downloader.init({folder: 'download', fileSystem: storage_location})
     }
   ```
   
   
   ### Environment, Platform, Device
   iPhone 7, iOS 14.1
   
   
   ### Version information
   ```
   Ionic:
   
      Ionic CLI         : 6.10.1 (/usr/local/lib/node_modules/@ionic/cli)
      Ionic Framework   : ionic1 1.0.0
      @ionic/v1-toolkit : 1.0.22
   
   Cordova:
   
      Cordova CLI       : 9.0.0 (cordova-lib@9.0.1)
      Cordova Platforms : ios 5.1.1
      Cordova Plugins   : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 5.0.0, (and 32 other plugins)
   
   Utility:
   
      cordova-res (update available: 0.15.2) : 0.15.1
      native-run (update available: 1.3.0)   : 1.2.2
   
   System:
   
      ios-deploy : 1.10.0
      ios-sim    : 8.0.2
      NodeJS     : v10.21.0 (/usr/local/Cellar/node@10/10.21.0/bin/node)
      npm        : 6.14.4
      OS         : macOS Catalina
      Xcode      : Xcode 12.1 Build version 12A7403
   ```
   
   
   
   
   ## Checklist
   <!-- Please check the boxes by putting an x in the [ ] like so: [x] -->
   
   - [x ] I searched for existing GitHub issues
   - [ ] I updated all Cordova tooling to most recent version
   - [x ] I included all the necessary information above
   


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