asdf/deleteFiles.html at master · ganesh92git/asdf · GitHub

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<!DOCTYPE HTML>
<HTML>
<HEAD>


<!--<script src="https://www.gstatic.com/firebasejs/5.7.3/firebase.js"></script> -->
<script src="https://www.gstatic.com/firebasejs/5.7.2/firebase-app.js"></script>

<!-- Add additional services that you want to use -->
<script src="https://www.gstatic.com/firebasejs/5.7.2/firebase-auth.js"></script>
<script src="https://www.gstatic.com/firebasejs/5.7.2/firebase-database.js"></script>
<script src="https://www.gstatic.com/firebasejs/5.7.2/firebase-storage.js"></script>
<script>
  // Initialize Firebase
  var config = {
    apiKey: "AIzaSyDNtZL7iuvfKrlNb7fzVp6Uu9InDewtffw",
    authDomain: "projects92.firebaseapp.com",
    databaseURL: "https://projects92.firebaseio.com",
    projectId: "projects92",
    storageBucket: "projects92.appspot.com",
    messagingSenderId: "194786329134"
  };
  firebase.initializeApp(config);
</script>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<style>
table {
  border-collapse: collapse;
}
table, td, th {
  border: 1px solid black;
  padding : 5px;
}
</style>
</HEAD>
<BODY>
<pre>
	<center><h2>Unrestricted view mode</h2></center>
<a href="unrestrictedModeIndex.html">Show unhidden files</a>  		<a href="showAll.html">Show all files</a>
</pre>
	<input id="choosefile" type="file" value="click here">
	<input type="button" value="upload" onclick="tryToUpload()"> <br>

	<table id="uploadList"><tr><th>File Name</th><th>Done(MB)</th><th>Total(MB)</th><th>Status</th></tr>
	</table>

	<p id="fileList"> Fetching files.... Please wait</p>

	<script>
		var auth = firebase.auth();

		$(document).ready(function(){
			$("#uploadList").hide();
		});

		window.onload = function() {
		  auth.onAuthStateChanged(function(user) {
			if (user) {
				  console.log('Anonymous user signed-in.', user);

				  // check if user is logged in
				var logstatus = firebase.database().ref('GlobalData/status');
				console.log("status "+logstatus);
				if(logstatus=='false'){
					window.open("index.html","_self");
				}else{
					readFiles(true);
				}
			} else {
			  console.log('There was no anonymous session. Creating a new anonymous user.');
			  // Sign the user in anonymously since accessing Storage requires the user to be authorized.
			  auth.signInAnonymously().catch(function(error) {
				if (error.code === 'auth/operation-not-allowed') {
				  window.alert('Anonymous Sign-in failed. Please make sure that you have enabled anonymous ' +
					  'sign-in on your Firebase project.');
				}
			  });
			}
		  });
		}


		function downloadURI(uri, name) {

			var link = document.createElement("a");
			link.download = name;
			link.href = uri;
			document.body.appendChild(link);
			link.click();
			document.body.removeChild(link);
			delete link;
		}

		function readFiles(readHiddenFiles){
			var auth = firebase.auth();
			var imgRef=firebase.database().ref('files/');
			imgRef.on('value', function(snapshot) {
				if(snapshot.val()!=null){
					obj = snapshot.val();
					console.log(obj);
					var filesAvailable=false;
					var tableStr = "<table><tr><th>File Name</th><th>Hidden</th><th></th></tr>";
					for(var i=1;i<obj.length;i++){
						if(obj[i].isDeleted=="false"){
							filesAvailable=true;
							tableStr+="<tr><td><a href='"+obj[i].reference+"'>"+ obj[i].name + "</a></td>";
							tableStr+= "<td>"+ obj[i].isHidden +"</td>";
							tableStr+= "<td><input type='button' value='delete' id='"+obj[i].id+"' name='"+obj[i].name+"' onclick='deleteFile(this.id,this.name)'></td></tr>";
						}
					}

					if(filesAvailable){
						tableStr+="</table>";
						document.getElementById('fileList').innerHTML=tableStr;
					}else{
						document.getElementById('fileList').innerHTML="No Files Found";
					}
				}else{
					console.log("file not found");
					document.getElementById('fileList').innerHTML="No Files Found";
				}
			});
		}

		function writeUserData(fileId,fileName, ref, isHidden, isDeleted) {
		  var auth = firebase.auth();
		  firebase.database().ref('files/'+fileId).set({
			id : fileId,
			name : fileName,
			reference: ref,
			isHidden : isHidden,
			isDeleted: isDeleted
		  });
		}

		function uploadToDb(fileName, ref){
			var auth = firebase.auth();
			var imgRef=firebase.database().ref("GlobalData/latestFileId/");
			var newId=1;
			imgRef.once('value').then(function(snapshot) {
				if(snapshot.val()!=null){
					var obj = snapshot.val();
					newId = obj+1;
					console.log("new id: "+newId);
					writeUserData(newId, fileName, ref, 'false', 'false');

					firebase.database().ref("GlobalData/").set({
						latestFileId: newId});
				}else{
					console.log("file id not found");
				}
			});
		}

		function uploadToStorage(){
			var storageRef = firebase.storage().ref();

			var files = document.getElementById('choosefile').files;

			for(var i=0;i<files.length;i++){
				var file = files[i];
				var metadata = {
					'contentType': file.type
				};
				var uploadTask = storageRef.child("files/"+file.name).put(file, metadata);

				var tableStr = "<td>"+file.name+"</td><td id='done"+file.name+"'>0</td><td id='total"+file.name+"'>unknown</td><td id='uploadStatus"+file.name+"'>0%</td>";
				if(i==files.length-1){
					document.getElementById('uploadList').innerHTML=document.getElementById('uploadList').innerHTML+tableStr;
					$("#uploadList").show();
				}

				uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, // or 'state_changed'
				  function(snapshot) {
					var progress = (snapshot.bytesTransferred / snapshot.totalBytes) * 100;
					console.log('Upload is ' + progress + '% done');
					var uploaded = snapshot.bytesTransferred/1048576;
					var total = snapshot.totalBytes/1048576;
					document.getElementById('done'+file.name).innerHTML	   =  Math.floor(uploaded*100)/100;
					document.getElementById('total'+file.name).innerHTML	   =  Math.floor(total*100)/100;
					document.getElementById('uploadStatus'+file.name).innerHTML=  Math.floor(progress*100)/100 +"%";

					switch (snapshot.state) {
					  case firebase.storage.TaskState.PAUSED: // or 'paused'
						console.log('Upload is paused');
						break;
					  case firebase.storage.TaskState.RUNNING: // or 'running'
						console.log('Upload is running');
						break;
					}
				  }, function(error) {
						switch (error.code) {
							case 'storage/unauthorized':
							  // User doesn't have permission to access the object
							  break;
							case 'storage/canceled':
							  // User canceled the upload
							  break;
							case 'storage/unknown':
							  // Unknown error occurred, inspect error.serverResponse
							  break;
						}
				}, function() {
					uploadTask.snapshot.ref.getDownloadURL().then(function(downloadURL) {
						console.log("file name "+file.name);
						uploadToDb(file.name, downloadURL);
					});
				});
			}
		}

		function tryToUpload(){
			var file = document.getElementById('choosefile').files[0];

			if(file!=null){
				var metadata = {
					'contentType': file.type
				};

				var auth = firebase.auth();
				var imgRef=firebase.database().ref('files/');
				imgRef.once('value').then(function(snapshot) {
					if(snapshot.val()!=null){
						obj = snapshot.val();
						var	foundFile = false;
						for(var i=1;i<obj.length;i++){
							if(obj[i].name==file.name){
								var r = confirm("File with same name exists. Do you want to overwrite?");
								foundFile = true;
								if (r == true) {
								  obj[i].isDeleted='true';
								  firebase.database().ref('files/'+obj[i].id).set(obj[i]);
								  uploadToStorage();
								}
								break;
							}
						}

						if(foundFile==false)
							uploadToStorage();
					}else{
						console.log("folder 'files' not found");
						uploadToStorage();
					}
				});
			}else{
				window.alert("Choose files first");
			}
		}

		function deleteFile(fileId, fileName){
			var dbRef=firebase.database().ref('files/'+fileId);
			var storageRef = firebase.storage().ref();

			var stoRef = firebase.storage().ref().child('files/'+fileName);
			stoRef.delete().then(function() {
			  console.log("file deleted");
			  firebase.database().ref('files/'+fileId+'/isDeleted').set('true');
			}).catch(function(error) {
			  // Uh-oh, an error occurred!
			});
		}


	</script>
</BODY>

</HTML>