How to create link in HTML that download that file - html

I have http://192.168.230.237:20080 Server
file located on "/etc/Jay/log/jay.txt"
I tried with "http://192.168.230.237:20080/etc/Jay/log/jay.txt" this link gives me "404 NOT Found"
Here I can I link my file to link

Your HTTP server will have a configuration option somewhere (Apache HTTPD calls it DocumentRoot) which determines where http://example.com/ maps onto the filesystem of the computer.
Commonly this will be /var/www/.
Unless you change it to / (which would expose your entire filesystem over HTTP and is very much not recommended), you can't access arbitrary files on the computer.
/etc/ is used to store configuration information for software installed on the computer. It should almost never be exposed outside the computer.
The best solution to your problem is probably:
Look at the configuration of your HTTP server and identify the document root (e.g. /var/www/)
Move your website files to that directory
If you really want to expose files under /etc via HTTP then you could also change the document root.
Your webserver might also support features like Apache HTTPD's Alias directive which allows you to map a URL onto a file that can be outside the DocumentRoot.

Related

Mediawiki: Links to open local files on the server doesn't work

I have MediaWiki installed on a synology server. I would like to create a link on the wiki that would allow opening of files on the same server.
Here are the steps I did to achieve this:
Added $wgUrlProtocols[] = "file://"; in LocalSettings.php
A test file on the server: file://myServerName/path/to/file/test.txt. Putting this URL in my chrome browser directly opens the file.
Create a page in MediaWiki with a link to this file using [[file://myServerName/path/to/file/test.txt]]
When I click on the generated wiki page, nothing happens. However when I hover on top of the link, it shows the correct URL.
Can someone please point out what additional steps I need to do to get this working?
The file:// protocol points to the file on your computer. I'm not fully sure, but I think you cannot use it to retrieve file from a different machine (read my comment below about samba shares).
From quick research it looks like Chrome browser blocks requests with file:// protocol, But browsers like IE should allow you to open those files. It is done because of security reasons so the malicious site cannot open local files without your permission. You might bypass that by installing a special plugin in Chrome (look for Enable file links)
Instead of using file protocol, make those files available via Synology WebStation, and then create links that point to the file via webstation (not via path on the server). With that approach, links attached on your MediaWiki pages will work as those will be regular links.
If you don't use the WebStation, you might also try with ftp:// links (use the FTP service), or link to samba shares - that's where the file:// protocol might work, but again - I'm not sure and I cannot test it as I do not use windows.
I think that the safest/easiest/fastest way is to expose those files via WebStation.
Source: https://en.wikipedia.org/wiki/File_URI_scheme
The file URI scheme is a URI scheme defined in RFC 8089, typically used to retrieve files from within one's own computer.

Index.html without XAMPP

Is it possible to automatically load index.html on a system folder without using XAMPP, IIS or similar?
It is for a school project and I can't use them, so I have to open the file putting the path (C:/...) into the address bar.
I know I could use .htaccess, but I don't know what to write and if it gets read without any web server solutions!
This can get a little tricky... but is possible without any "administrator" privileges, nor without installing anything.
Download Python 3.8.2 - Windows x86-64 embeddable zip file
Create a folder on "python" on the c:\
Extract the "Zip" file into this folder
Change the folder name from "python-3.8.2-embed-amd64" to "python_src"
Create a folder named "python_html"
The folder structure should look like:
c:\python\
c:\python\python_src\
c:\python\python_html\
Create a file named "webserver.py" in the "c:\python\python_html" folder
Place the following code into that file:
#webserver.py
import http.server
import socketserver
PORT = 80
Handler = http.server.SimpleHTTPRequestHandler
with socketserver.TCPServer(("", PORT), Handler) as httpd:
print("serving at port", PORT)
httpd.serve_forever()
Save and close the file
Create index.html file in the "python_html" folder and place the following code in that file:
<html>
<head>
<title>Web Title</title>
</head>
<body>
<h1>Python Web Server File</h1>
<p>Congratulations! The HTTP Server is working!</p>
</body>
</html>
Open the "Command Prompt" and type the following commands
cd\
cd python\python_html\
c:\python\python_src\python ./webserver.py
Open a web browser and navigate to "http://localhost/"
Once you have confirmed this works, you can build an entire website within that "python_html" folder. As long as you don't close the command prompt it will continue acting as a "Web Server".
I know I could use .htaccess
.htaccess is an Apache (Web Server) config file, so unless you have Apache installed (ie. the "A" in XAMPP) then you can't use that. (If .htaccess was available then index.html would likely load automatically anyway.)
On Apache, being able to load index.html by default when requesting a directory requires mod_dir (an Apache module). In this case, mod_dir issues an internal subrequest for the DirectoryIndex - this all requires additional processes.
I can't install extensions... I have to open the file on my school computer
If you can't install anything then you can't do this I'm afraid. You appear to be limited to direct file requests.
When using a webserver (such as Apache or IIS) then you have a differentiation between a URL and a filesystem path. The webserver maps the URL to a filesystem path. Without a webserver you don't have that abstraction.
There are lighter webservers, other than Apache and IIS, but you need to install something extra.
Just give your file(s) meaningful names (ie. not index.html) and use those instead? eg. fox-project.html

HTML Domain and Path

I was learning about HTML domains and paths in my computer-science class. However, I have a question. What happens if you only specify a domain, such as apple.com instead of specifying a path? Does the page automatically give you the index file or something?
Thanks :)
That entirely depends on what the web server is configured to do. What you’re doing is you’re requesting a URL from a web server via HTTP. That does not inherently have anything to do with files. The web server can respond to the request in any way it wants.
But yes, most typically the average web server will look for a file named something like index.html in its webroot folder and return it.
yes, there is the default file that is returned if no path is provided
From Apache documentation
Typically, a document called index.html will be served when a directory is requested without a file name being specified. For example, if DocumentRoot is set to /var/www/html and a request is made for http://www.example.com/work/, the file /var/www/html/work/index.html will be served to the client.
From IIS documentation:
Default documents are enabled by default, and IIS 7 defines the following default document files in the ApplicationHost.config file as server-wide defaults: Default.htm, Default.asp, Index.htm, Index.html, Iisstart.htm.
(If you install ASP.NET on your Web server, the installation process will add the Default.aspx file to this list.)

For PyCharm/WebStorm my IDE's local server is not detecting other directories

When I select a html file to open "in browser" in Webstorm it works and it opens under the localhost. The issue I'm having is that this webstorm internal server is not detecting any of the other paths in my project root like images and javascript files.
I should note that this feature has worked before on other projects I started from scratch using "new project." The difference with this project is that I opened a directory as a project.
The built-in webserver serves files from http://localhost:<built-in server port>/<project root>. Forward slashes in URLs tell the browser to resolve them relative to the web server root (localhost:63342 in your case), causing 404 errors.
If you like to change the default web path on built-in web server, you have to re-configure the server by editing your system hosts file accordingly - see http://youtrack.jetbrains.com/issue/WEB-8988#comment=27-577559.

Basic HTML - does relative path to a sub-folder (using the directory name) work on a desktop?

I am doing some basic HTML exercises on a Mac OS 10.6.6.
Say I am here:
rootfolder/index.html
and I want to go here:
rootfolder/subfolder/index.html
I understand I can use the relative path to make a link:
link to subfolder
^ this works for me in my browser.
And if I wanted to shorten the href, I could just do this:
link to subfolder
When I click the short version in my browser, the link takes me to the folder on my desktop (not to the page in my browser)
I'm wondering, do the files need to be in a web host environment for
the short version to work in a browser?
When /bob/ => /bob/index.html works, it is generally because the server has listed it as its directory index, e.g. with Apache...
DirectoryIndex index.html index.php
...meaning in the request of a folder, it will first look up to see if an index.html or index.php exists (in that order).
So if you are running it from the folders of your local filesytem (i.e. on the file: protocol), it has no server and does not know that a blank directory should request index.html.
The serving of index.html (or index.cgi or default.asp or whatever) when requesting a url that points to a directory is done by the server, not the browser. It is usually done as a result of configuration setting.
It's neither a property of HTML nor a property of urls.
If your browser doesn't serve index.html — and I don't know any that do — then you've answered your own question.
Mac OS comes with Apache (the most commonly-used open-source web server) pre-installed. You can set it up by going to System Preferences, choosing the "Sharing" preference pane, and then checking the box to turn on Personal Web Sharing.
Once you've turned on Personal Web Sharing, http://addressofyourcomputer/~yourusername/ will point to the Sites directory in your user's folder in Mac OS (i.e., /Users/yourusername/Sites/). With Apache running, if you go to http://addressofyourcomputer/~yourusername/subfolder/, it will in fact serve up /Users/yourusername/Sites/subfolder/index.html if there is an index.html file in that subfolder.
Without turning on Personal Web Sharing, though, there is no server running, and so your browser is really just directly accessing your computer's filesystem. As a result, when you ask for a folder, it literally returns you that folder, whereas Apache server knows the convention that /subfolder/ is really a request for /subfolder/index.html and will re-direct you accordingly.
The default page setting/redirection works only on web servers. The browser do not have intelligence(?) for such redirection. So the second option will not work.