I have the following code:
private function uploadFile(file:File, packageId:String):void {
try {
var fullpath:String = file.nativePath;
var filename:String = fullpath.substr(fullpath.lastIndexOf("/")+1,fullpath.length);
packageItem.status = "Uploading file: "+filename;
file.addEventListener(ProgressEvent.PROGRESS, function(event:ProgressEvent):void{uploadProgress(event, packageId)} );
file.addEventListener(flash.events.Event.COMPLETE, function(event:flash.events.Event):void{uploadComplete(event, packageId)} );
file.upload(urlRequest, packageId);
} catch (error:Error) {
logging.log(error.message);
}
}
So i extract the filename from the path in a file object.
the files are comming from:
File.applicationStorageDirectory
The problem is that this isnt working for windows because they are using backslashes instead of slashes like mac osx does. What would be the best way to seperate the filename and file so it works on mac and windows?
Its fairly obvious.
The url property has the filesystem url of the file. So a file with a nativePath of
C:\Documents and Settings\some_file.txt
would have a url of
file:///C:/Documents%20and%20Settings/some_file.txt
Now you just need to split on / and you're done.
P.S.: You might have to unescape the file name to remove the url-type formatting
Related
I'm using the following when trying to open a local file:
some document
When I click the above in a browser, it opens Finder to the folder. But does not open the file. Should I be doing something else to have the file open in Numbers?
You cannot open local files on the client. This would be a huge security risk.
You can link to files on your server (like you did) or you can ask the client for a file using <input type="file">
You can only open some types of files in browsers, like html css js and mp4, otherwise the browser will want to download it. Also remember that browsers replace spaces with %20. I recommend right clicking the file and opening it with chrome then copy that link and using it.
You can open files that are local as long as it is a file that is on the file that is trying to open another file is local.
Your issue is likely the space in the document name. Try this instead:
some document
The %20 will be read by your browser as a space.
Update
The other answer points out something I missed. The .numbers extension will not be able to be opened directly by your browser. Additionally the other answer describes the security risk this could create.
The File API in HTML 5 now allows you to work with local files directly from JS (after basic user interaction in selecting the file(s), for security).
From the Mozilla File API docs:
"The File interface provides information about files and allows JavaScript in a web page to access their content.
File objects are generally retrieved from a FileList object returned as a result of a user selecting files using the <input> element, from a drag and drop operation's DataTransfer object, or from the mozGetAsFile() API on an HTMLCanvasElement."
For more info and code examples, see the sample demo linked from the same article.
This might not be what you're trying to do, but someone out there may find it helpful:
If you want to share a link (by email for example) to a network file you can do so like this:
file:///Volumes/SomeNetworkFolder/Path/To/file.html
This however also requires that the recipient connects to the network folder in finder --- in menu bar,
Go > Connect to Server
enter server address (e.g. file.yourdomain.com - "SomeNetworkFolder" will be inside this directory) and click Connect. Now the link above should work.
Here is the alternative way to download local file by client side and server side effort:
<a onclick='fileClick(this)' href="file://C:/path/to/file/file.html"/>
js:
function fileClick(a) {
var linkTag = a.href;
var substring = "file:///";
if (linkTag.includes(substring)) {
var url = '/v/downloadLocalfile?path=' +
encodeURIComponent(linkTag);
fileOpen(url);
}
else {
window.open(linkTag, '_blank');
}
}
function fileOpen(url) {
$.ajax({
url: url,
complete: function (jqxhr, txt_status) {
console.log("Complete: [ " + txt_status + " ] " + jqxhr);
if (txt_status == 'success') {
window.open(url, '_self');
}
else {
alert("File not found[404]!");
}
// }
}
});
}
Server side[java]:
#GetMapping("/v/downloadLocalfile")
public void downloadLocalfile(#RequestParam String path, HttpServletResponse
response) throws IOException, JRException {
try {
String nPath = path.replace("file:///", "").trim();
File file = new File(nPath);
String fileName = file.getName();
response.setHeader("Content-Disposition", "attachment;filename=" +
fileName);
if (file.exists()) {
FileInputStream in = new FileInputStream(file);
response.setStatus(200);
OutputStream out = response.getOutputStream();
byte[] buffer = new byte[1024];
int numBytesRead;
while ((numBytesRead = in.read(buffer)) > 0) {
out.write(buffer, 0, numBytesRead);
}
// out.flush();
in.close();
out.close();
}
else {
response.setStatus(404);
}
} catch (Exception ex) {
logger.error(ex.getLocalizedMessage());
}
return;
}
You can expose your entire file system in your browser by using an http server.
caddy2 server
caddy file-server --listen :2022 --browse --root /
serves the root file system at http://localhost:2022/
python3 built-in server
python3 -m http.server
serves current dir on http://localhost:8000/
python2 built-in server
python3 -m SimpleHTTPServer
serves current dir on http://localhost:8000/
This s
I try to open a swf from another swf. They are on the same folder. Here is the code block I am trying to get the file.
var newRequest:URLRequest;
var path:String = "mahmut"+".swf";
newRequest = new URLRequest(path);
newLoader = new Loader;
newLoader.load(newRequest);
newLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, completeFn);
newLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, camaluriFn);
function camaluriFn(e:IOErrorEvent)
{
trace("Error: " + String(e));
}
and trace throws Error #2035: URL Not Found. URL: app:/mahmut.swf
So how can I give right path and it can open display successfully?
Doesn't matter where those files are, what matters is from where they are loaded. In your case all local paths are from the app root no matter what. If you swf are in folder "myswfs" then the right path is not just "mahmut"+".swf" but "myswf/smahmut.swf".
i have a question. If there is a possibility at windows phone 8 at visual studio to create button event to read text file? i know about streamReader and if i declare wchich exacly file i want to read, but if i want to choose from list of files wchich i want to display. i did research on the Internet but i didint find an answer. I know i can use isolatedStorage to read music, video, image but not text files, on the app i created few files with text in it and i want users to have posibility to display one from this file, whichever they want to see. So, can you tell me how to do this?
You can use IsolatedStorage to read any file type you wish. You must of been using something like a Launcher that filters out the file type based on the Chooser.
You can open a file like this:
private async Task<string> ReadTextFile(string file_name)
{
// return buffer
string file_content = "";
// Get the local folder
StorageFolder local = Windows.Storage.ApplicationData.Current.LocalFolder;
if (local != null)
{
// Get the file
StorageFile file;
try
{
file = await local.GetFileAsync(file_name);
}
catch (Exception ex)
{
// no file, return empty
return file_content;
}
// Get the stream
System.IO.Stream file_stream = await file.OpenStreamForReadAsync();
// Read the data
using (StreamReader streamReader = new StreamReader(file_stream))
{
file_content = streamReader.ReadToEnd(); // read the full text file
streamReader.Close();
}
// Close the stream
file_stream.Close();
}
// return
return file_content;
}
If you want to get the PackageLocation (files that you added into the project like assets and images) then replace the LocalFolder with
Windows.ApplicationModel.Package package = Windows.ApplicationModel.Package.Current;
Windows.Storage.StorageFolder installedLocation = package.InstalledLocation;
With Windows Phone 8.1, File Pickers are allowed, consisting the same functionality you are expecting, so probably you might want to upgrade your app to WP8.1.
Here's more info on this API : Working with File Pickers
I'm writing a windows phone 8 application that have following functions
Download a zip file from the internet
Extract it to the isolated storage
I'm looking for a solution to deal with it but haven't found once. If you have any suggestion please help.
Thanks in advance!
EDIT:
I break it down into several steps:
Check if storage is available - DONE
Check if file is compressed - DONE
Use Background Transfer (or another method) to download to local folder and display information to user (percentage, ect.) - NOT YET
Unzip file to desired location in isolated storage - NOT YET
Do stuffs after that... - DONE
For step 4, I found and modified some script to extract file to isolated storage (using SharpGIS.UnZipper lib):
public async void UnzipAndSaveFiles(Stream stream, string name)
{
using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
{
using (var zipStream = new UnZipper(stream))
{
foreach (string file in zipStream.FileNamesInZip)
{
string fileName = Path.GetFileName(file);
if (!string.IsNullOrEmpty(fileName))
{
StorageFolder folder = ApplicationData.Current.LocalFolder;
folder = await folder.CreateFolderAsync("html", CreationCollisionOption.OpenIfExists);
StorageFile file1 = await folder.CreateFileAsync(name, CreationCollisionOption.ReplaceExisting);
//save file entry to storage
using (var writer = new StreamWriter(await file1.OpenStreamForWriteAsync()))
{
writer.Write(file);
}
}
}
}
}
}
This code is untested (since I haven't downloaded any file).
Can anyone point out any thing that should be corrected (enhanced)?
Can anyone help me to modify it to extract password-protected file (Obviously I have the key)?
I'm trying to link to a local file. I've set href as follows:
Link Anchor
In Firefox, when I right click and "open link in new tab", nothing happens.
When I right click and "copy link location", then manually open a new tab and paste the copied link, it works fine. So it seems my file:// syntax is fine. I've also tried it with 3 slashes like file:/// but it's the same result.
What am I doing wrong?
By definition, file: URLs are system-dependent, and they have little use. A URL as in your example works when used locally, i.e. the linking page itself is in the user’s computer. But browsers generally refuse to follow file: links on a page that it has fetched with the HTTP protocol, so that the page's own URL is an http: URL. When you click on such a link, nothing happens. The purpose is presumably security: to prevent a remote page from accessing files in the visitor’s computer. (I think this feature was first implemented in Mozilla, then copied to other browsers.)
So if you work with HTML documents in your computer, the file: URLs should work, though there are system-dependent issues in their syntax (how you write path names and file names in such a URL).
If you really need to work with an HTML document on your computers and another HTML document on a web server, the way to make links work is to use the local file as primary and, if needed, use client-side scripting to fetch the document from the server,
Organize your files in hierarchical directories and then just use relative paths.
Demo:
HTML (index.html)
<a href='inner/file.html'>link</a>
Directory structure:
base/
base/index.html
base/inner/file.html
....
The href value inside the base tag will become your reference point for all your relative paths and thus override your current directory path value otherwise - the '~' is the root of your site
<head>
<base href="~/" />
</head>
This can happen when you are running IIS and you run the html page through it, then the Local file system will not be accessible.
To make your link work locally the run the calling html page directly from file browser not visual studio F5 or IIS simply click it to open from the file system, and make sure you are using the link like this:
Intro
../htmlfilename with .html
User can do this
This will solve your problem of redirection to anypage for local files.
Try swapping your colon : for a bar |. that should do it
Link Anchor
The right way of setting a href=“” when it's a local file.
It will not make any issue when code or file is online.
FAQ
Hope it will help you.
Here is the alternative way to download local file by client side and server side effort:
<a onclick='fileClick(this)' href="file://C:/path/to/file/file.html"/>
Js:
function fileClick(a) {
var linkTag = a.href;
var substring = "file:///";
if (linkTag.includes(substring)) {
var url = '/cnm/document/v/downloadLocalfile?path=' + encodeURIComponent(linkTag);
fileOpen(url);
}
else {
window.open(linkTag, '_blank');
}
}
function fileOpen(url) {
$.ajax({
url: url,
complete: function (jqxhr, txt_status) {
console.log("Complete: [ " + txt_status + " ] " + jqxhr);
if (txt_status == 'success') {
window.open(url, '_self');
}
else {
alert("File not found[404]!");
}
// }
}
});
}
Server side[java]:
#GetMapping("/v/downloadLocalfile")
public void downloadLocalfile(#RequestParam String path, HttpServletResponse
response) throws IOException, JRException {
try {
String nPath = path.replace("file:///", "").trim();
File file = new File(nPath);
String fileName = file.getName();
response.setHeader("Content-Disposition", "attachment;filename=" +
fileName);
if (file.exists()) {
FileInputStream in = new FileInputStream(file);
response.setStatus(200);
OutputStream out = response.getOutputStream();
byte[] buffer = new byte[1024];
int numBytesRead;
while ((numBytesRead = in.read(buffer)) > 0) {
out.write(buffer, 0, numBytesRead);
}
// out.flush();
in.close();
out.close();
}
else {
response.setStatus(404);
}
} catch (Exception ex) {
logger.error(ex.getLocalizedMessage());
}
return;
}