I'd like my web page to have a "Show Source" link that will show the source of my HTML.
I'm also wondering if there's something I could append to the URL of my page that'll just show the source as opposed to rendering the page. Like this...
http://www.example.com/mypage.html#show_source
If you are okay with a link that opens source, you could use the following javascript:
if you are using FF:
window.location = "view-source:" + window.location.href;
and with IE:
var popup=window.open();
popup.document.open('text/plain').write(document.documentElement.outerHTML)
If all you need is code between the body tags - then you could do the following:
document.body.innerHTML
Can you provide a bit more information on the application?
"View Source Button" could be a solution, but if you need a direct link you need to change the Content-Type Header of your file to "plain/text".
If your page could be, for example, a PHP script, it would be:
<?php if($_GET["viewsource"]=="yes") header("Content-Type: plain/text"); ?>
and you can open link by appending ?viewsource=yes to your URL.
Remember, it works only "server side".
Related
I am offering a pdf document in the form of a download from my website via a landing page.
I want to hide the URL/link that displays in the address bar and when i hover over the download button on the web page so that the link cant be shared.
What is the best way to do this? Please explain carefully.
Thanks
Ok, you cannot do that with plain HTML. You can use all kind of tricks but they can be a problem to the user experience, you are to use a server side language.
What you can do is create a php page, name it the way you want (let's say download.php), and link to that one. The page should be something like this:
// Path to the file
$path = '/home/folder/yourfile.pdf';
// This is based on file type of $path, but not always needed
$mm_type = "application/octet-stream";
//Set headers
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Type: " . $mm_type);
header("Content-Length: " .(string)(filesize($path)) );
header('Content-Disposition: attachment; filename="'.basename($path).'"');
header("Content-Transfer-Encoding: binary\n");
// Outputs the content of the file
readfile($path);
exit();
This way you just link to your download.php page and it downloads/opens the PDF, like so:
Download
Edited based on BenjaminC suggestions
The other chance you have is to connect this to a database. The database has a table named downloads_table and inside you have 2 fields:
secret: char(32)
downloaded: int(1) dafault 0
Then you create an md5 string
$secret = md5(rand(1000, 9999999));
Place it inside the secret field, create the link:
Download
The user receives/sees a link, when pressed you are to edit the first line of the above code to check in the db if downloaded field = to 0 than procede to download, otherwise the person sees an error page.
This is so that it can be downloaded only once.
(Edit)
If in the future, this gets useful for anyone, the functionality can be seen in this fiddle: https://jsfiddle.net/aznjr87g/
It downloads 2.1.3 jquery.min.js from google.
(Edit end)
This can be achieved using Html5 's Download attribute.
Download PDF
If you hover your mouse over that, it simply shows yoursite.com/#
Place this somewhere in the body of the webpage:
And place this somewhere in the webpage:
<script>
function download() {
document.getElementById("download").src = "/path/to/download";
}
<script>
Then, on the element of the button (In the example of a div) do this in the tag:
<div onclick="download()"> </div>
However if it's a link you will want to do:
An element needs a href to work properly.
This is my web structure. In which all link contents are opened in iFrame when link is clicked.
Say I have clicked on 1st link (not Home page) , it gets open in iFrame,contents are displayed properly,all ok. But as I press refresh button expected is shlould load same page whose link I have clicked,but instead of that it loads Home page.
How should I be on same page after refresh also?
I'm using php for server side scripting. Thanks!
Edit:
I tried to store visited page name in session variable and then while loading Home page I check like
$_Session['visited']='/pages/neworder.html';
if(isset($_Session['visited']))
{
echo "<script>window.location.href=</script>".$_Session['visited'];
}
But didnt work!
I think the simplest way is with Jquery. If you make your website use anchors, for example
http://yoursite.com/#page-example
example
When you refresh the page, you will still be accessing this anchor. With jquery you can get this value and do some stuff based on that. So!
var hash = $(this).attr('href').split('#')[1];
This will get that # value, you can compare that in javascript then, or use a switch to determine what to do or simulate the page change.
Server side: Link sends GET request to the page and the src of the iFrame is set by the server.
-OR-
Client side: Add onclick function on the links which changes the src atribute for example with the following code:
document.getElementById('Iframe').src="new link";
-OR-
<iframe src="startin_link" name="iframe_a"></iframe>
<p>link</p>
Pure html.
EDIT: If you want to stay in the page... I suggest you use the first option. Example:
<a href='?page=1'>Some link</a>
then on server side:
if(!is_null($_GET['page'])){
$iframeLink=arrayOfLinks[$_GET['page']];
}else{
$iframeLink="Starting Link";
}
and the iFrame should look like this:
<iframe src='<?php echo $iframeLink; ?>'></iframe>
i have a request if possible,
i have an interface which containts a table :
name of application url
XXXXXX www.xxx.com
Problem is when I click in the url I lose my information on my current page.
my question is there is a code language by Internet explorer FF chrome... provide this action
open in tab this url to put in the url like the method version and the other
like this about:version ==> open in new tab : this url to put in the url navigator
and we get a new tab
thank you for help .
i try open in a new tab by tools provided by IE , but if possible provide a solution like a code entered in url to open a new tab
If I get you, you want your link to open the page in another tab.
You may use the target attribute of the link like this :
<a href="somepage.html" target=newtab>text</a>
If you want something you can type in the URL field of the browser, that is a bookmarklet, you may use this :
javascript: window.open('http://www.dystroy.org');
In most browsers, ctrl-click a link do the same thing.
EDIT :
If what you can modify is only the href attribute of the link, you can make this href be like this :
<a href="javascript:window.open('http://www.dystroy.org');" target=_blank>text</a>
If its a hyperlink just add a "target" to the hyperlink with its value as "_blank". Working example:
<a id="termsLink" href="www.someLink.com" target=_blank>
Terms and Conditions</a>
The java script solution works great in case of shortcodes which offer you an href (or url) option but no target parameter. Here is an example with a popular callout shortcode:
[callout title='Your big Title' text='your small text...' button_text='CLICK ME' button link="**javascript:window.open**('http://www.dystroy.org');"]
Without the javascript, the linked page would open onto the current one.
You don't need any code to open a link in a new tab or window. HTML already has that functionality built in.
Use an tag to show your url and use the target attribute to tell it to open in a new window.
Example:
www.xxx.com
Learn more about a tag and target attribute here
Is there a way to have a button/link and when you click on it, it will take the current page location and download an HTML version of it? It will be an iframe too, and the link should just download the iframe's content. Thanks!
The following JavaScript will take the current document and provide it as a download link. Tested in Chrome, not sure about others. Keep in mind that IE has limits for DataURI size. Furthermore, you'll lose your external images/CSS/etc, unless you inject the base tag into the top of the head tag (or find some other way to roll in resources):
// create the link to trigger download
// you could alternatively fetch an existing tag and update it
var a = document.createElement('a');
// send as type application/octet-stream to force download, not in browser
a.href =
"data:application/octet-stream;base64," +
btoa("<html>"+ document.getElementsByTagName('html')[0].outerHTML +
"</html>");
a.innerText = "Download this page";
// put the link wherever you want
document.body.appendChild(a);
EDIT: also doesn't provide a filename, or a .htm at the end of the download link... hmph. Those things can only really be provided by the Content-Disposition header, and that requires sending a request off to the server, so... not a fantastic user experience, but the easiest way to get the exact page state as the user sees it.
All you need is a simple script that takes the file name as a param and generates a zip. Here is an example in PHP.
How do you actually download a picture when you click on it? Is there some kind of a javascript code to do just that? Here is how i show the image with pure HTML.
<img src="myPic.png" border="0">
Assuming by "download" you mean "Cause the user's browser to throw up the 'save or open' dialogue" — you can't.
You could link to another URL offering the same file but with the Content-Disposition header set to attachment. The specifics of how you would provide such a resource at that URL would depend on the server side capabilities on offer to you.
Most people right-click on the image and choose "Save image as..."
The alternate is to link to use a server-side script that sets a "Content-type" and "Content-disposition" header. In PHP, that would be something like this example from the docs:
header('Content-Type: image/png'); // or 'image/jpg' or 'image/gif'
header('Content-Disposition: attachment; filename="filename.png"');
readfile('original.png');
UPDATE: Since you say the image is generated by a PHP script in the first place, there are a few options:
Put the URL (sig.php?...) as the parameter to readfile. This will mean double processing for anyone who clicks to download.
Cache the output from your image generation script to the filesystem, then pass that file to readfile.
Edit the image generation script to accept an extra parameter like mode=download and then where you are about to output the image, if the parameter is present, set those two headers above.
I trick this out a bit - I zip the picture and put it somewhere. Then, instead of using a fancy script or server-side stuff, I make the picture's link the location of the .zip file. The user get's warned/asked if they want to download this zip and voila...
But this is usually in an area where the user is someone who would want the image...
Do you want to open the picture in a new window/tab? Or do you want to download it to the users computer? If you want the user to save the image, then you need to set the content-type of the file they receive:
<?php
$file = $_GET['file'];
header("Content-Type: application/octet-stream; ");
header("Content-Transfer-Encoding: binary");
header('Content-Disposition: attachment; filename="'.basename($file).'"');
readfile($file);
?>
Remember to check the input so people can't download source files.