How to show large amount of data in page wise using HTML and how to restrict the page data.
ex:suppose if we save the page using browser the data should not be saved by the users.
1) To show parts of HTML data divided over a few pages, you'll probably want to have the data in a database and then retrieve, format it and the deliver to your user.
2) You can't restrict the users from saving the data on your page when using HTML. The rationale is that what the user sees must definitely be downloaded from your site. That being said, when he saves the page, he'll definitely be able to save all the text and HTML. If your data is really that important and needs to be protected, consider using other technologies, such as Adobe Flash or even Java Applets.
Hope it helps. Cheers!
You can use hyperlinks to divide the page data in multiple pages or needs to use some server side scripting like PHP/ASP.
You cannot restrict user to save the html output however you can use java applets or flash to do that.
Not sure I understood the question, but if you want to show something on the page that user cannot easily download or copy you can use Flash. There is no way to do it with HTML.
Related
Say I have a product website, like Amazon (this is not the case, but it will help me explain my point), and I have a URL for every single product (such as with Amazon)...
Do I need to copy-paste and modify an HTML file for every single individual product page, or is there a way to use a "model" on which I can base all my other pages without recopying the whole code and modifying a few things in each?
I've just started learning HTML and web development, so bare with me if I'm asking a stupid question.
It just seems odd to me that a million-page website should host a million+ individual, nearly identical, HTML files.
Thank you very much in advance.
P.S. I'm using Amazon's brand name as an example here, and am not affiliated with anything related to it. Thank you for understanding.
No, you do not need an HTML file for every single page on your website. While you could do that, it is becomes very infeasible to manage the bigger your site becomes. On most websites you would have the following components:
A front end - consists of HTML code and usually some sort of template engine with placeholders for your data
A backend - consists of your data store (usually a database).
There will also usually be some form of API and/or middleware between your front end and backend.
If you go to https://example.com/myproductid in your browser, your computer will send that request to the web server. The web server will then retrieve your data, load it into the correct template, and serve the page to you.
In traditional HTML and PHP only websites, you would have to reload the entire page each time you went to a new product. However, you can instead use a technique called Ajax to only update certain parts of a web page rather than reloading the entire page. That way you can just update the text, images, and links that are specific to the product, and the rest of the page would stay the same. (Note: Ajax originally used XML, modern implementations usually use JSON).
Ultimately, you will want to learn some JavaScript and then start looking into various web frameworks or libraries such as ReactJS.
Not you Can have only one page for all product, but you have to make it Dynamic.
Yes you need an HTML document for your each webpage, like for Home page, contact us page you need different HTML documents
I need to embed both pdf-files and images in my html-page, however, due to the fact that my html contains a form and the user has to be able to decide whether he would like to upload a pdf-file or an image, I need a flexible solution regarding how to embed either a pdf-file or an image with the same code.
I read that I could possibly use the <object/> tag, however, I also read that that's not a very "elegant" and possibly slow solution.
I also considered to use <embed/> which, as of right now, is the best solution I could come up with. Unfortunately I couldn't find out about if it's a very conventional solution or not.
I can't seem to find very much resources regarding this topic online, hence why I'm asking here. Are there any other/better ways to embed a pdf- or image-file in an html page?
Edit: I want top display the pdf kind of like a file. Also, I don't want the user to be able to resize the pdf in the viewer
I'm sure this is better suited to a comment, however I'm new and am working on unlocking that feature.
...however,
due to the fact that my html contains a form and the user has to be
able to decide whether he would like to upload a pdf-file or an image...
What are you using for the form (query language & database management)?
(PHP, Django, MySQL, MongoDB, etc)
Are there any other/better ways to embed a
pdf- or image-file in an html page?
I would recommend using embed or iframes. You are correct in thinking that the object tag is not an elegant solution, since you are dealing with images.
Edit: I want top display the pdf kind of like a file. Also, I don't
want the user to be able to resize the pdf in the viewer
Easy to do with iframes. There's a lot of hate when it comes to iframes. As you seem to plan on using it as a tool to display a file within a page, then I believe using an iframe here is just fine.
Check out this link on iframes. (will also tell you how to keep the user from resizing it)
I am creating a collection of HTML documents that is connected with a navbar. It is really simple, but so far, the links on the Nav-Bar just link to other HTML Pages.
All of these pages are very data-heavy, and use Javascript to process through almost a terabyte of data, so I can't have it so that when I need to go back and forth, the page reloads all of the data.
Any good ways to accomplish this?
You might look into using localStorage to store as much of the data on the user's machine as you can. It won't store a whole terabyte, though.
You will probably also want to incorporate ajax, so your script can first check if the data is in localStorage and then download it asynchronously if it isn't.
There is a website called file2hd.com which can download any type of content from your website including audio, movies, links, applications, objects and style sheets. Of course this doesn't work for high profile websites such as Google, but is there there a type of method I can use to cloak content on my website and prevent this?
E.g. Using a HTML Code, or using .htaccess method?
Answers are appreciated. :)
If you hide something from the software, you also hide it from regular users. Unless you have a password-protected part of your website. But even then, those users with passwords will be able to fetch all loaded content - HTML is transparent. And since you didn't provide what kind of content are you trying to hide, it's hard to give you a more accurate answer.
One thing you can do, but it works just for certain file types, is to server just small portions of a file. For example, you have a video on your page and you're fetching 5-second bits of the video from the server every 5 seconds. That way, in order for someone to download the whole thing, they'd have to get all the bits (by watching the whole thing) and then find a way to join the parts... and it's usually just not worth it. Think of Google Maps... and Google uses this/similar technique on a few other products as well.
I am thinking to create an website that generates HTML through a wizard.Finally, I want to make the users to buy the generated HTML source if they like what they see.
But I don't want to let the users to steal the HTML, CSS and JS that I use to create the effect they want.
I want a technique which is immune to Firebug and Right Click -> View Page Source.
Any thoughts ?
edit: I remember something about iframes or frameset, but I'm not sure how to fool the browser and Firebug to execute the code without updating their capability of showing that source code. A popup is also a possible solution.
edit 2: html hosted in silverlight ? will you use it ?
The best thing you can do is to just obfuscate your code. Trying to hide the source is not going to work (for ex: if you disable right click-> view source that doesn't stop them from using the menu or saving the page or using a shortcut key or writing an app to stream the http request into a file and open that, etc).
Firstly, depending on what you are doing you can have the HTML code loaded through JS after the page load (AJAX).
As far as your JS goes:
Free Obfuscator
Not Free Obfuscator
In the end though, there is no stopping someone who really wants to get that source. Even obfuscated code can be rebuilt (though it's hell on wheels painful depending on how good the obfuscator is).
To really protect the sample HTML from prying eyes, you'd need to render it on the server-side and only pass image data to the client. If you want the user to be able to interact with the sample as if it were a normal Web page, you'll also need to send their pointer and keyboard inputs to the server and update the displayed image when necessary. At that point, though, you're basically making an HTTP-based version of VNC. This is definitely possible, but I don't think it will be easy, and I doubt there are any existing software packages to let you do this. If I were you, I'd rethink my business model a bit.
Sending XSL-templated XML to the browser may be enough fool some, and it will work more or less the same in many modern browsers including IE6 (maybe even 5.5).
But really, trying to hide the HTML code isn't going to work if anyone halfway serious wants to get it.
I am thinking to create an website that generates HTML through a wizard.
Finally, I want to make the users to buy the generated HTML source if they like what they see.
If this is what you need you might consider the possibility of creating a preview of the page as an image, and provide the download of the source only after the user agreed and paid. There is no magic way to let a browser display a code that you can't see.
You can make a video, showing the functionality and upload the same, which may help users to view / feel it.