How to anchor a website to a usb flash drive? - html

So I've developed a website with multiple (10) pages, including a home page, and each page has links to the others. But when demo'ing the site, the links point to "C://users/hp/(etc etc)". Is there a way to simply point the links on the website to their parent folder, wherever that folder is located? I want to be able to put it on a flash drive, give that flash drive to a friend, and for them to be able to plug it in and use the website without changing or moving anything.

Just use relative paths instead of absolute ones:
C:\Users\hp\foo\bar.txt This is called absolute path.
..\..\foo\bar.txt This is called relative path (Any path that doesn't begin with the root of the filesystem, in your case, it is C:).
In relative paths, .. mean the parent directory, and . means the current directory. So to refer to the parent directory use ../ then complete the path from this directory to the file.

Related

Writing HTML file path names for local files

Please bear with me since I am a noob at html.
Let's say I have a local directory called website saved inside my local Downloads folder, and inside this website directory I have an html file called page.html
Inside the website directory, I also have another directory called folder
Inside the folder directory, I have an html file called page2.html
In the html code for page.html, there is this line of code:
page 2
When I open page.html locally in a web browser, the file path name is file:///Users/myuser/Downloads/website/page.html.
When I then click that page 2 link on the webpage, it brings me to file:///website/folder/page2.html instead of the correct path file:///Users/myuser/Downloads/website/folder/page2.html so it doesn't work.
I know I could change the href link in page.html to file:///Users/myuser/Downloads/website/folder/page2.html but I want this link to work even if I move the website directory into a different local directory. For example, the href link would work whether I have the website directory inside my Downloads, Desktop, or Documents folder, or even if I saved this website directory onto a different PC.
Is there a way to word the href link so that this can happen?
You’ll need to use href="../page.html" in your page2.html file.
I recommend you read up on what a URL is, especially the part Absolute URLs vs relative URLs
So a URL has different parts, beginning with the scheme like file or https.
Image from Mozilla at the before-mentioned URLs
You can skip certain parts at the beginning of a URL, which will give you a relative URL. These parts will be replaced by the user agent (the browser) from the current location.
For example, you can use scheme-relative URLs:
<a href="//myhost.example.com/page.html">
If the page containing that code is served via https, the link will also be completed to https: https://myhost.example.com/page.html. If it’s served via ftp, it will complete to ftp://myhost.example.com/page.html.
The same goes for other parts, and when referencing other pages from the same site, you would use path-relative URLs.
Absolute and relative paths
Now, concerning the path part of a URL, there is also a distinction between absolute paths and relative paths, just like in your operating system.
<a href="/page.html"> is using an absolute path. This means go to the root directory of the same drive or host, to find page.html.
In your case, the page2.html is delivered from file:///Users/myuser/Downloads/website/folder/page2.html.
So when you use a path beginning with / (absolute), it will refer to the root of the drive, so basically C:\ and complete to file:///page.html.
<a href="../page.html"> now is a relative path, relative to the current location. It’s saying go up one directory to find page.html.
So with the same location as before, this will complete to
file:///Users/myuser/Downloads/website/page.html.

How can anchors <a href=""> be created without the protocol and domain?

What is the correct way to do this and have what is generated / used by the browser be relative paths?
I need to do this in order to generate PDF's with links that will open files in a folder directory on a user's hard drive. The links must use relative paths, since the files will be downloaded in a directory structure that will be moved around on the hard drive. To further clarify the use case, the PDF(s) and the files will be downloaded in zip archives together, so the initial relative location will always be known.
I understand there are things in place in browsers to prevent this working from within a browser window, but in this case it will only be used in anchors in PDF files generated from HTML.
One of the problems with using something like this is that the protocol and domain is appended to the front of the path in the anchor. The relative path that's needed is to navigate within a folder directory in Windows Expolorer.
file.txt
The PDF's are converted from HTML using SelectPdf, and this is an Asp.Net MVC web app.
I have tried variations of this, which windows explorer is not able to use:
file.txt

How do I get the application root?

The physical folder structure on my web server is:
inetpub
oo|
oo|_wwwroot
oooooo|
oooooo|_MyApp ----> this is the root folder of my web application
oooooooooo|
oooooooooo|_images
oooooooooo|
oooooooooo|_styles
oooooooooo|
oooooooooo|_pages
I have an html file (test.html) under the pages folder. I want to link to other files (eg. stylesheets and images) via absolute paths. So, I have a line of code similar to this:
<img src="/images/roundbutton.png" />
When the page is rendered, the image is not displayed, as the "/" tells it to look for the image in a folder wwwroot/images.
Is there another way to use absolute paths to refer to the application root, instead of the site root? Or is using relative paths the only other option?
Yes, use the <base> element.

How to go up a level in the src path of a URL in HTML?

I am storing style sheets in {root}/styles while images in {root}/images for a website.
How do I give the path in the style sheets to go look in the images directory for the specified images?
e.g. In background-image: url('/images/bg.png');
Use .. to indicate the parent directory:
background-image: url('../images/bg.png');
Here is all you need to know about relative file paths:
Starting with / returns to the root directory and starts there
Starting with ../ moves one directory backward and starts there
Starting with ../../ moves two directories backward and starts there (and so on...)
To move forward, just start with the first sub directory and keep moving forward.
Click here for more details!
Use ../:
background-image: url('../images/bg.png');
You can use that as often as you want, e.g. ../../images/ or even at different positions, e.g. ../images/../images/../images/ (same as ../images/ of course)
In Chrome when you load a website from some HTTP server both absolute paths (e.g. /images/sth.png) and relative paths to some upper level directory (e.g. ../images/sth.png) work.
But!
When you load (in Chrome!) a HTML document from local filesystem you cannot access directories above current directory. I.e. you cannot access ../something/something.sth and changing relative path to absolute or anything else won't help.
If you store stylesheets/images in a folder so that multiple websites can use them, or you want to re-use the same files on another site on the same server, I have found that my browser/Apache does not allow me to go to any parent folder above the website root URL. This seems obvious for security reasons - one should not be able to browse around on the server any place other than the specified web folders.
Eg. does not work: www.mywebsite.com/../images
As a workaround, I use Symlinks:
Go to the directory of www.mywebsite.com
Run the command ln -s ../images images
Now www.mywebsite.com/images will point to www.mywebsite.com/../images
Supposing you have the following file structure:
-css
--index.css
-images
--image1.png
--image2.png
--image3.png
In CSS you can access image1, for example, using the line ../images/image1.png.
NOTE: If you are using Chrome, it may doesn't work and you will get an error that the file could not be found. I had the same problem, so I just deleted the entire cache history from chrome and it worked.
if you want to go to the root of the folder use / or ctrl+space
if you want to go to the back folder use ../ and ctrl+space if it dont suggest
and not use the live server if you use the ../

HTML image storing?

I had created one HTML page for my experiance. In this i had use the background image like c:\documents ans settings.....\leftline.png.
But i don't know how to add images from a common directory. (like background-image= ('./images/leftline.png'). how i can do like this?
The second line you have is a relative address, relative to the "thing" that is calling it.
So, say you have a webpage called "index.html" and it lives in
C:\My Documents\WebPages\My Page. You might also have C:\My Documents\WebPages\My Page\images\leftline.png
Now, rather than type in "C:\My Documents\WebPages\My Page\images\leftline.png" we can simply use "images\leftline.png" in our index.html page. Why? Well, check the locations:
C:\My Documents\WebPages\My Page\images\leftline.png
C:\My Documents\WebPages\My Page\index.html
RELATIVE to index.html, leftline is only one directory away, so you can address relatively.
You have to save the images inside the directory of your website and then you can acess these images using relative path.
If your page for example Default.htm lies inside the virtual directory WebSite1 then you can create a folder for images say 'Images' and can point to an image inside the 'Images' directory by using 'Images/image1.jpg'
If from your html file you have to traverse a folder up then you can use '../Images/image1.jpg'
You can also give an absolute path for the image like http://.....
Put the files in a directory that is in the same folder the html file is in. name the folder images.
You need to have this image inside your website.
And then the trick is to work out what URL to use (that's apparently your problem).
When you use an HTML image tag () in you page, then the browser sees the URL you specify. If that URL is relative (does not start with "http://" or a "/"), then it is sees as relative to the URL of the page. So usually you will need some "../" to go back to the root of the site and then back up again to the image.
A URL that is specified inside a .css file is relative to that css file.
If you use asp.net and want to specify the image-url in a server tag ( for instance), then you can use a "~" as first character to specify the "root of the site". This will work only if that URL is processed by the server as a property of some server control.