A Manga and Doujinshi manager that runs on your LAMP server

This is just a personal project since I wanted to learn some PHP and MySQL. And well what could be better than a web doujinshi manager. This setup depends on external libraries and needs some initial administration.
So be prepared to do most things manually (only) while you're setting this up.
This is good if you want to work for your degeneracy.

You need a local web server (tested with Apache) with PHP (with mysqli) enabled and MySQL server running on your Linux machine.
You can find many guides on the internet about setting those up if you're new to it.

For the download tab to work properly, you need to have php-fpm with fastcgi enabled. You can look up how to set it up if you want to use it (you should use it regardless of if you use konnichiwa or not). If you do decide to use php-fpm, make sure to read the permissions section.

You can find more information in this pdf if you want to manually setup the tables, or you may use this sql dump to do the same.

To create tables from the sql dump, run the following commands in the mysql command line:

mysql> CREATE DATABASE dbname;
mysql> USE dbname;
mysql> SOURCE /path/to/help/create.sql

Download from here and put the php file as scripts/simple_html_dom.php.
This is needed for the downloading tab.

I don't want my webpage to connect to a CDN everytime I open it. So download the jquery min (not slim) version from here and put the js file as scripts/jquery.js.

But if you don't want to download jquery and are comfortable with connecting to a CDN, you can edit the scripts/header.php file. The $head variable contains the line <script src="/scripts/jquery.js"></script> which you can edit to refer to a CDN.

As said, no CDN. Download fontawesome from here and put the whole directory as assets/fontawesome.

Same as above, if you really want, you can just edit the $head variable in scripts/header.php, specifically the line <link rel="stylesheet" href="/assets/fontawesome/css/all.css"> to refer to a CDN.

Create a file scripts/login.php according to your sql setup. The content of the file is as follows (I think the variable names are self-explanatory):

<?php
$db_hostname = "hostname";
$db_username = "user";
$db_password = "password";
$db_database = "dbname";

So obviously you need the directory in which the doujinshi images are. Each doujinshi should have its separate subdirectory. A subdirectory may have its own nested subdirectory.

From here on, the directory with all the subdirectories is referred to as holy directory. You MUST name this directory as Doujinshi.

Now put a symlink named images in the same directory as index.php which links to the parent of the holy directory.
So, for instance, if the actual holy directory is /home/user/Private/Doujinshi then you put a symlink images which links to /home/user/Private and NOT /home/user/Private/Doujinshi, which can be done by the command (may need sudo)

cd konnichiwa
ln -s /home/user/Private images

Create a file scripts/directory.php as per your holy directory setup.
The content of the file is as follows:

<?php
$real_directory = "/home/user/Private/";
$directory = "/images/";
// The path to the holy directory
$image_directory = $real_directory . "Doujinshi/";
// The path to prepend to image files for html display
$relative_directory = "/images/Doujinshi/";
$dir_exists = false;

if(is_dir($real_directory)) {
	$dir_exists = true;
}

You just need to change the $real_directory variable to the path of the parent directory of the holy directory. In the sample above, the full path to the holy directory would be /home/user/Private/Doujinshi

• Do NOT remove/add any slashes to the paths

You can create a scripts/modification/data.json file with the following structure:

{
  "directories": [
    {
      "dirName": "Directory 1",
      "dirCover": "1.png",
      "authors": [
        "author"
      ],
      "tags": [
        "tag1",
        "tag2",
        "tag3",
        "tag4",
        "tag5"
      ]
    },
    {
      "dirName": "Directory 2",
      "dirCover": "ch-1 1.jpeg",
      "authors": [
        "author1",
        "author2",
        "author3"
      ],
      "tags": [
        "tag1",
        "tag2",
        "tag3",
        "tag4"
      ]
    }
  ]
}

Run the scripts/modification/refresh_db.php file and check the output for any errors, which you need to correct manually.

You can also name the file something other than data.json and then run the script as php refresh_db.php [FILENAME].

You can also add directories completely manually by going to [hostname]/add.php and filling out the form for each directory. If you have a small number of directories (i.e, you're just starting out on the hoarding), this option makes more sense.

You need the following fonts installed on the system:

• Nikkyou Sans (Used in the logo)
• Lato

RoverWire's virtualhost script does a pretty good job in creating an out-of-the-box usable virtualhost.

Make sure your server software (apache/nginx/etc) and php-fpm (if using) have the permissions to read/write to the holy directory. For me (on apache), the following steps worked:

• First of all check if the virtualhost has permissions Require all Granted for <Directory /var/www/[VIRTUALHOST]>. This can be done by going to /etc/apache2/sites-available and editing the virtualhost's configuration file [VIRTUALHOST].conf. (May be 000-default.conf). This is default behaviour if you created your virtualhost with RoverWire's virtualhost bash script. If not, add this line.

• Now add USER (your user in LINUX) to the group www-data by running:

sudo adduser [USER] www-data

• cd into /etc/apache2/ and edit the file envvars. In the file, find the line that says:

export APACHE_RUN_USER=www-data
export APACHE_RUN_GROUP=www-data

and edit it to:

export APACHE_RUN_USER=your-username
export APACHE_RUN_GROUP=your-username-group

You can check what groups your user is in by running:

groups [USER]

For php-fpm to use the same user as your server software, you need to edit the file www.conf located at /etc/php/[VERSION]/fpm/pool.d/www.conf. Look for the lines

user = www-data
group = www-data

and edit those to

user = your-username
group = your-username-group

Finally, restart apache and php-fpm services with

sudo service apache2 restart
sudo service php[VERSION]-fpm restart

This way, the server will have permissions to read/write to the user directory. Be careful if you're going to run some deleting/writing commands with php on your server.

If you see a directory tmp/ in your server root directory, don't panic, it's meant to be there. It should just contain two files:

• An image which has the cover of your last previewed doujinshi
• A plain text file that contains the information of your last/current download

It should be fine if you delete the files or even the whole directory.

The features are pretty much obvious if you are browsing the site. The only thing that needs explanation I think is the download tab.

⚠️ Download tab is practically useless now because of Cloudflare on NHentai. You can try using nhentai-konnichiwa if you would still like to use konnichiwa and would prefer automatic addition of metadata.

If you navigate to the Download tab in the website, you will be asked for an ID and an optional name.

• ID: The nhentai id of a doujinshi that you want to download (the numbers after the nhentai.net/g/ part)
• name: The optional prefix that you want to add to the saved files' names. The default is blank and the images have names like {page}.{ext} but for instance, if the provided name was ch-1, the files will be saved as ch-1 {page}.{ext}.

This setup is tested only on Ubuntu 18.04, 20.04 and the site only with firefox and chrome. If it works for you on a different system, consider updating this warning via a pull request.