Convenient file sharing from scratch

Hi, Habr!

Today I want to tell you how to create a convenient http / ftp file storage. I'll say right away - it's pretty simple. What is required of the reader? Basic skills in the linux console, the ability to use the editor nano and, of course, the desire to create your own small file corner in the network.
I believe the following makes sense for people with a white IP address and fast internet connection. My version of the system involves the authorization of ftp / http and the ability to create hidden sections, while it remains possible to give direct links to files. Also, I provided for the use of http muzzle from mobile devices, so the script interface is nothing superfluous. For fans of fancy-look and wanting beauty and not functionality, this option is most likely not suitable. But this does not mean at all that your favorite file technician, my favorite technogic, will look ugly. See what comes out of this can be on the link .
First, let's define the initial configuration: debian 6, apache2, php5, proftpd and good mood. Everyone's favorite ubunt also fit.

Attention! The following actions must be performed as root . Just type su (or sudo su) and then the root password (or current user, in the case of sudo). Also, after any changes to the configuration files, the server must be restarted for the changes to take effect. This is done by teams

invoke-rc.d apache2 restart

and

invoke-rc.d proftpd restart

respectively.

So, all in order:
First we install the necessary software. Open the terminal, enter:

apt-get install apache2 php5 proftpd

Install it all, then enter:

nano /etc/apache2/sites-enabled/000-default

Here we will add a directive to disable the directory index and set the standard encoding.
At the beginning of the file will be a description of the directories with the contents. We are looking for the necessary lines:

  DocumentRoot / var / www
         <Directory />
                 Options FollowSymLinks
                 AllowOverride None
         </ Directory> 

We need to disable indexes and set the default encoding. You should have the following:

  DocumentRoot / var / www
         <Directory />
                 Options FollowSymLinks –Indexes
                 AddDefaultCharset utf-8
                 AllowOverride None
         </ Directory> 

With the apache setup, we are done. Save the config. In nano, this is done with the Ctrl + O combination, followed by Enter.
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The next step is to create a user for the ftp login and define it in the same group as the apache. For example, sosnickiy .
Attention! These username and password will need to be entered at the entrance to your ftp.
We write to the console:

adduser sosnickiy --ingroup www-data --shell /bin/false

Enter the password, the rest can not be filled, just click on Enter. The script will create a user, define it in a group and copy standard files. Create an ftp directory in its home directory:

mkdir -m 775 /home/sosnickiy/ftp

On this, perhaps, dealt with the user.

The next step is to set up an ftp server. So, we enter:

nano /etc/proftpd/proftpd.conf

We are looking for a parameter:

# DefaultRoot ~

A # (#) at the beginning of a line means that the parameter is commented out and ignored by the server. We remove this sieve.
We are looking for a parameter:

RequireValidShell on

Change it to:

RequireValidShell off

Add the following to the end of the configuration file:

  <Directory / home / sosnickiy / ftp>
        	 Umask 002 002
               <Limit ALL>
        		 AllowUser sosnickiy
        		 Denyall
               </ Limit>
 </ Directory>

 <Directory / home / sosnickiy / ftp / *>
	 Umask 002 002
               <Limit ALL>
              	 AllowUser sosnickiy
      	 	 Denyall
               </ Limit>
 </ Directory> 

This completes the ftp server setup. We save, restart it and can already use it. However, do not rush to upload files there. That's not all.
Now we will create an ftp directory in the http directory of the server and make it one with the ftp directory in the home folder of the user sosnickiy. This is where files will be uploaded via an ftp server.
Create a directory:

mkdir -m 775 /var/www/ftp

Execute the command:

mount --bind /home/sosnickiy/ftp /var/www/ftp

Now the directories are one.
We perpetuate change:

echo "/home/sosnickiy/ftp /var/www/ftp none bind 0 0" >> /etc/fstab

Now the directories will be one even after a reboot.

At this point, I would like to stop and make one important note: via http, the AutoIndex 2.2.4 script ( official site ) will be used to list files, upload them to the server, and manage directories, files and users. But its standard equipment does not allow starting and working right away as there is a bug with the Russian language file, a bug with the user / password storage file and there are some nuances with the rights created by the script files and directories. I have made minor changes, I will describe them below. If you don’t want to bother with his handset - I suggest downloading the script that is already fully ready for work: ( click here ). If you do not believe me, consider that I am in a conspiracy with the world government or just a bad person and added a bad change to the code of the Trojan / backdoor / other - manually do it yourself. At least, I advise you to take at least a file ru.txt from my archive. I note that in the case of downloading a ready-made script, you only need to upload it to the server, unpack it in / var / www and show your friends a working file sharing service (hehe, irony). I will not describe the script settings as everything is very obvious there.
So, if you are an incredulous person, you will have to do the following:
We download the archive from the official site, unpack it on the working computer, in the classes directory we find the Admin.php file, open it, look for line 68:

 return @mkdir($path, 0755); 

Change the number 755 to 775.
In the same directory, open the Upload.php file, look for line 73:

 @chmod($fullpathname, 0644); 

Change the number 644 to 664.
In the file Tar.php in line 78:

 . str_pad('755', 7, '0', STR_PAD_LEFT) . "\0" //permissions 

Instead of 755, we put 775.
This will fix the data access conflict.
Next, you need to open the file ru.txt in the languages ​​directory, delete its contents and insert corrected data into it:

Format: value [tab] translation to the desired language [line feed]
In the original file, the format is somewhat broken. Therefore, file sharing will not work.
Then, create in the root directory (next to the index.php file) file .htpasswd.autoindex . Mandatory with a dot at the beginning. Open, paste into it the following:

  admin 7c4a8d09ca3762af61e59520943dc26494f8941b 3
 user 12dea96fec20593566ab75692c9949596833adc9 1 

In this case, the administrator password is 123456
User Password: user

We save everything, we pack the directory with the corrected script in a zip archive, restart the ftp server, go in, upload the archive with the corrected script to the ftp directory.
For Windows, I recommend the Filezilla client. Or simply enter “Explorer” into the address bar:

  ftp: // ip_address_server / ftp / 

and hit enter. Also, you can save a password and add to Favorites. Conveniently.

So, the script is packed into the archive and lies in the ftp folder. Expand the console, write (better copy and paste):

cd /home/sosnickiy/ftp/ && unzip AutoIndex-2.2.4.zip && cp ./AutoIndex-2.2.4/* /var/www && rm -rf AutoIndex-2.2.4.zip AutoIndex-2.2.4

Now we execute a simple command:

chown -R www-data:www-data /var/www && chmod -R 775 /var/www

Now everything is ready! Use for health.
Thanks for attention.