I have a fairly simply web app that uses expressjs and handlebarsjs to retrieve and format markdown files and render them as html to the browser. I'd like to write the html output to the disk instead of sending it to the browser ? I know there are static website generators out there, but I'd rather just modify the existing program a tiny bit instead of installing a whole new kitchen sink.
The standard filesystem library should be able to do this -
fs.writeFile(filename, html, function (err) {
if (err) throw err;
console.log('It\'s saved!');
});
Where filename is the filename, and html is the content you want to write to the file.
See the filesystem docs.
Related
I'm working with Flutter.
I have a pdf document that I download from a webservice.
The http body response of this pdf sent by http package is typed as Uint8List.
Then, I would like to print it with printing which is working with pdf package.
So I need an instance of a PdfDocument from this class.
Is there a way that I can convert this Uint8List to pdf ? I tried some other dart packages, but they didn't answer my needs because I need to print pdf, not just view them.
I also looked with flutter_downloader in order to simply get pdf file without bothering myself with Uint8List, but it seems the package is not working at the moment: https://github.com/fluttercommunity/flutter_downloader/issues/132
Thank you very much for answering.
Use:
var data = await getThePdfData(); // obtain the Uint8List
Printing.sharePdf(bytes: data);
I have an MHT (Microsoft web archive) file that I have added to my project folder. I need this file to display in a WebView on a help page. I have set the file's build action to "Content," like this question reccomended. I then use this code in the page's Loaded event handler.
Try
Dim strHelpNavigate = Path.Combine(Windows.ApplicationModel.Package.Current.InstalledLocation.ToString(), "\MyAppsHelp.mht")
webHelp.Navigate(New Uri(strHelpNavigate))
Catch ex As Exception
webHelp.NavigateToString("<html><head><style>body {font-family: segoe ui; color: white; background-color: black;}</style></head><body><h2>Sorry, the help page is currently unavailable.</h2></body></html>")
End Try
This code produces an exception: {"Invalid URI: The format of the URI could not be determined."}
I have also tried passing "\MyAppsHelp.mht" to the Navigate method like this question reccomended, but this produces the same exception, and I see from the Local window that the string passed to the Navigate method is the same either way.
Does anyone have any advice on how to display this file in the WebView?
WebView does not natively support HTML archive files, but you can do the work convert these files to html + images if you're so inclined.
Open the .mht file in notepad, and you'll see that there are separate sections for each part of the HTML file - you can parse these sections to get the HTML out, then the base64 encoded images, then save them in your local app folder and use WebView.NavigateToLocalStreamUri to load them. See http://blogs.msdn.com/b/wsdevsol/archive/2014/06/20/a-primer-on-webview-navigatetolocalstreamuri.aspx for details on how to use this method.
OF course, if it's a static file that you will be using all of the time, it would be far easier to just convert it before packaging the app.
Follow up to this question:
apply downloaded CSS on windows 8 metroUI app
So, yes, Windows says "for security reasons, you cannot navigate to HTML you have downloaded to this location and you cannot run any executable or potentially executable code, such as script or CSS. It is intended for media such as images or videos and the like."
But I really, really want to use that css file from my local storage. Shouldn't I be able to use the execUnsafeLocalFunction method to bypass this restriction like this?:
MSApp.execUnsafeLocalFunction(function () {
el["href"] = "ms-appdata:///local/style.css"
});
It still throws "An app can’t load remote web content in the local context."
I also tried just reading the file with localFolder.getFileAsync and readText, but nothing seems to help. Is there really no way to work around this?
I think I found a way to get the CSS to load.
I tested the code below by adding a css file that sets the body background to red in the local storage folder.
The code reads the contents of the file, creates a style tag in the head and adds the content of the css file to the style.
var url = new Windows.Foundation.Uri(filename);
Windows.Storage.StorageFile.getFileFromApplicationUriAsync(url).then(function (file) {
Windows.Storage.FileIO.readTextAsync(file).then(function(text) {
var style = document.createElement("style");
style.innerText = text;
document.getElementsByTagName("head")[0].appendChild(style);
});
});
I have an html template which I need to render as a .PDF and then save that pdf file on server. I'm using "rendering" plugin of grails. I'm able to render file as PDF but I don't understand how to save it on server location and not on user's system. Can anybody please help me ?
The pdfRenderingService provided by the plugin allows you to call render and get back an OutputStream. Using that output stream you can write that to a file on your server. The documentation explains the basics of using the service.
Your code may look something like this:
new File("report.pdf").withOutputStream { outputStream ->
outputStream << pdfRenderingService.render(template: '/report/report', model: [serial: 12345])
}
Well, actually I changed my plugin. Got Wkhtmltopdf plugin of grails more helpful. you can find it here --
https://github.com/quorak/grails-wkhtmltopdf
Also instructions regarding using this plugin you can find on the same link or here --
[https://github.com/quorak/grails-wkhtmltopdf]
Using this you can get "bytes" which you can write to file system.
I have few queries with regard to fileUploadField in wicket 1.4.8. I want the user to have ability to upload one file at a time but should be able to upload many files before form submit.
I have included . User does select one file at a time and I display it as thumbnail on the page. I am simulating the behavior of with a "Choose Image" button. He is then allowed to select another file. So, how do I get all these multiple files in wicket controller on form submit?
2.Most of the examples on fileUploadField available in google or on wicket site has below code snippet. Few things are not clarified here for me.
2.1. What is the getUploadFolder(). Is it the path for source file? or Is it the path for destination? I am allowing user to upload files from mobile device. So, if it is source path, how does it work in my case?
2.1.2. Also, I don't want to save the file either in my local disk or server side. I want the file data to be converted to byte[] and send across to downstream for further processing. Can I do that with fileUploadField or MultiFileUpload?
for (FileUpload upload : uploads)
{
// Create a new file
File newFile = new File(getUploadFolder(), upload.getClientFileName());
// Check new file, delete if it already existed
checkFileExists(newFile);
try
{
// Save to new file
newFile.createNewFile();
upload.writeTo(newFile);
UploadPage.this.info("saved file: " + upload.getClientFileName());
}
catch (Exception e)
{
throw new IllegalStateException("Unable to write file", e);
}
}
You probably already have looked around yourself, but have you seen the Wicket guide?
http://wicket.apache.org/guide/guide/chapter11.html#chapter11_7