CODEWITHSUNDEEP
jsonhtml
Sid Nalabandian
Sid Nalabandian

Reputation: 21

how to display .json file contents from an absolute path of client's computer

I have come accross the following html5 code which selects the .json from from local file system and displays its contents. But I need help in selecting the json file (without file upload dialog) from the pre-defined absolute path "C:\data.json"

<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>On loaded file + AngularJS</title>
  <script type='text/javascript' src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.12/angular.min.js"></script>
</head>
<body ng-app="myapp">
  <div ng-controller="MainCtrl" class="container">
  <h1>Select text file</h1>
    <input type="file" on-read-file="showContent($fileContent)" />
    <div ng-if="content">
        <h2>File content is:</h2>
        <pre>{{ content }}</pre>
    </div>
</div>

<script type='text/javascript'>//<![CDATA[ 

var myapp = angular.module('myapp', []);

myapp.controller('MainCtrl', function ($scope) {
    $scope.showContent = function($fileContent){
        $scope.content = $fileContent;
    };
  });

myapp.directive('onReadFile', function ($parse) {
    return {
        restrict: 'A',
        scope: false,
        link: function(scope, element, attrs) {
            var fn = $parse(attrs.onReadFile);

            element.on('change', function(onChangeEvent) {
                var reader = new FileReader();

                reader.onload = function(onLoadEvent) {
                    scope.$apply(function() {
                        fn(scope, {$fileContent:onLoadEvent.target.result});
                    });
                };

                reader.readAsText((onChangeEvent.srcElement || onChangeEvent.target).files[0]);
            });
        }
    };
});
//]]>  

</script>


</body>


</html>

Upvotes: 0

Views: 394

Answers (1)

Nir Lanka
Nir Lanka

Reputation: 378

What you're asking effectively is reading a local file without the client's explicit permission (having once being selected doesn't count), which has been avoided by design as it obviously introduces many kinds of threats. ;-)

It seems impossible to be done in any formal way. If you could explain on your actual goal, we might be able to suggest a different way.

Upvotes: 1

Related Questions