Gazelle/sections/ajax/autofill/manga.php

<?php
#declare(strict_types=1);

if (empty($_GET['url'])) {
    json_die();
}

$url = str_replace('exhentai', 'e-hentai', $_GET['url']);

$matches = [];
preg_match('/^https?:\/\/g?\.?e.hentai\.org\/g\/(\d+)\/([\w\d]+)\/?$/', $url, $matches);

$gid = $matches[1] ?? '';
$token = $matches[2] ?? '';

if (empty($gid) || empty($token)) {
    json_die("failure", "Invalid URL");
}

if ($Cache->get_value('manga_fill_json_'.$gid)) {
    json_die("success", $Cache->get_value('manga_fill_json_'.$gid));
} else {
    $data = json_encode(["method" => "gdata", "gidlist" => [[$gid, $token]], "namespace" => 1]);
    $curl = curl_init('http://api.e-hentai.org/api.php');
    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($curl, CURLOPT_TIMEOUT, 10);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_HTTPHEADER, ['Content-Type: application/json', 'Content-Length: '.strlen($data)]);

    $json = curl_exec($curl);

    if (empty($json)) {
        json_die("failure", "Could not get page");
    }

    $json = json_decode($json, true)["gmetadata"][0];

    $artists = [];
    $tags = [];
    $lang = null;
    $circle = null;
    $censored = true;
    foreach ($json["tags"] as $tag) {
        if (strpos($tag, ':') !== false) {
            list($namespace, $tag) = explode(':', $tag);
        } else {
            $namespace = '';
        }

        if ($namespace == "artist") {
            array_push($artists, ucwords($tag));
        } elseif ($namespace == "group") {
            $circle = empty($circle) ? ucfirst($tag) : $circle;
        } elseif ($tag == "uncensored") {
            $censored = false;
        } else {
            if ($namespace) {
                $tag = $tag.':'.$namespace;
            }
            array_push($tags, str_replace(' ', '.', $tag));
        }
    }

    // get the cover for ants
    $cover = $json['thumb'];
    // and let's see if we can replace it with something better
    $gallery_page = file_get_contents($url);
    $re = '/'.preg_quote('-0px 0 no-repeat"><a href="').'(.*)'.preg_quote('"><img alt="01"').'/';
    preg_match($re, $gallery_page, $galmatch);
    // were we able to find the first page of the gallery?
    if ($galmatch[1]) {
        $image_page = file_get_contents($galmatch[1]);
        $re = '/'.preg_quote('"><img id="img" src="').'([^<]*)'.preg_quote('" style=').'/';
        preg_match($re, $image_page, $imgmatch);
        // were we able to find the image url?
        if ($imgmatch[1]) {
            $cover = $imgmatch[1];
        }
    }

    $title = html_entity_decode($json['title'], ENT_QUOTES);
    $title = preg_replace("/\(([^()]*+|(?R))*\)/", "", $title);
    $title = trim(preg_replace("/\[([^\[\]]*+|(?R))*\]/", "", $title));
    $title_jp = html_entity_decode($json['title_jpn'], ENT_QUOTES);
    $title_jp = preg_replace("/\(([^()]*+|(?R))*\)/", "", $title_jp);
    $title_jp = trim(preg_replace("/\[([^\[\]]*+|(?R))*\]/", "", $title_jp));

    $json_str = [
    'id'          => $gid,
    'title'       => $title,
    'title_jp'    => $title_jp,
    'artists'     => $artists,
    'circle'      => $circle,
    'censored'    => $censored,
    'year'        => null,
    'tags'        => $tags,
    'lang'        => $lang ?? 'Japanese',
    'description' => '',
    'cover'       => $cover
  ];

    $Cache->cache_value('manga_fill_json_'.$gid, $json_str, 86400);

    json_die("success", $json_str);
}