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Feat: add HitomiDTO & Produce More GalleryInfo

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This commit is contained in:
Dong Hyun Kim
2025-06-11 15:08:15 +09:00
parent 6a349dddfa
commit cffae5c3ac
3 changed files with 190 additions and 35 deletions
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106
src/main/java/dev/ptnr/Hitomi.java
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@@ -1,5 +1,6 @@
package dev.ptnr;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
@@ -12,32 +13,74 @@ public class Hitomi {
private static final String cdnUrl = ".gold-usergeneratedcontent.net";
private static final String baseCDNUrl = "https://ltn" + cdnUrl;
private static ArrayList<String> getGalleryData(Integer galleryId) {
private static HitomiDTO getGalleryData(Integer galleryId) {
String baseUrl = baseCDNUrl + "/galleries/" + galleryId + ".js";
String rawJson;
JsonNode rootNode;
ArrayList<String> imageHashList = new ArrayList<>();
ArrayList<String> artists = new ArrayList<>();
ArrayList<String> femaleTag = new ArrayList<>();
ArrayList<String> maleTag = new ArrayList<>();
ArrayList<String> normalTag = new ArrayList<>();
Map<String, ArrayList<String>> tags = new HashMap<String, ArrayList<String>>();
byte[] rawData = AyayaUtils.GetFileFromUrl(baseUrl);
if (rawData == null) {
System.out.println("[ERR > Hitomi.GetGalleryData()] Failed to Get " + galleryId + ".js");
return null;
}
String rawJson = new String(rawData).replace("var galleryinfo = ", "");
try {
rawJson = new String(rawData, "UTF-8").replace("var galleryinfo = ", "");
} catch (UnsupportedEncodingException e) {
System.out.println("[ERR > Hitomi.GetGalleryData()] Failed to Convert JSON");
return null;
}
ArrayList<String> galleryData = new ArrayList<>();
try {
ObjectMapper objectMapper = new ObjectMapper();
JsonNode rootNode = objectMapper.readTree(rawJson);
JsonNode files = rootNode.get("files");
for (JsonNode node : files) {
String fileHash = node.get("hash").asText();
galleryData.add(fileHash);
}
rootNode = objectMapper.readTree(rawJson);
} catch (Exception e) {
System.out.println("[ERR > Hitomi.GetGalleryData()] Failed to Parse JSON\n" + e.getMessage());
return null;
}
for (JsonNode node : rootNode.get("files")) {
String fileHash = node.get("hash").asText();
imageHashList.add(fileHash);
}
for (JsonNode node : rootNode.get("tags")) {
String tag = node.get("tag").asText();
if (node.get("female") == null) {
normalTag.add(tag);
continue;
}
if (node.get("female").asInt() == 1) femaleTag.add(tag);
if (node.get("male").asInt() == 1) maleTag.add(tag);
}
tags.put("female", femaleTag);
tags.put("male", maleTag);
tags.put("tag", normalTag);
for (JsonNode node : rootNode.get("artists")) {
String artist = node.get("artist").asText();
artists.add(artist);
}
HitomiDTO galleryData = new HitomiDTO(rootNode.get("title").asText(),
galleryId,
artists,
rootNode.get("type").asText(),
rootNode.get("language").asText(),
imageHashList,
tags);
return galleryData;
}
@@ -68,44 +111,45 @@ public class Hitomi {
return new String(rawJs);
}
private static String getImageUrl(String rawGG, String hash) {
int defaultDomainKey = getIdFromGG("var o = (\\d)", rawGG) + 1;
int offsetDomainKey = getIdFromGG("o = (\\d); break;", rawGG) + 1;
int commonKey = getIdFromGG("b: '(\\d+)\\/'", rawGG);
Map<Integer, Integer> Offsets = getOffsetsFromGG("case (\\d+):", rawGG, offsetDomainKey);
int domainOffset = defaultDomainKey;
public static String getImageUrl(String hash) {
String ggData = getGGJS();
if (ggData == null) {
System.err.println("[ERR > Hitomi.GetHitomiData()] Failed to Get gg.js");
return null;
}
// ex) hash == 415e8c1bfbac7cb6192b6f7c14768c196dde9029233126ca5f108d6aa99818de
// 8de to slice hash[-1:] / hash[-3:-1] (e / 8d)
// -> s == hash[-1:] + hash[-3:-1] == "e8d"
// s to parseInt(s, 16) == 3725 == ImageId
int imageId = Integer.parseInt(hash.substring(hash.length() - 1) + hash.substring(hash.length() - 3, hash.length() - 1), 16);
int defaultDomainKey = getIdFromGG("var o = (\\d)", ggData) + 1;
int offsetDomainKey = getIdFromGG("o = (\\d); break;", ggData) + 1;
int commonKey = getIdFromGG("b: '(\\d+)\\/'", ggData);
Map<Integer, Integer> Offsets = getOffsetsFromGG("case (\\d+):", ggData, offsetDomainKey);
int domainOffset = defaultDomainKey;
if (Offsets.containsKey(imageId)) domainOffset = offsetDomainKey;
// domain number (a1, a2 / w1, w2..)
// webp = w1, w2 / avif = a1, a2
return "https://w" + domainOffset + cdnUrl + "/" + commonKey + "/" + imageId + "/" + hash + ".webp";
}
public static String GetHitomiData(Integer galleryId) {
ArrayList<String> galleryData = getGalleryData(galleryId);
public static HitomiDTO GetHitomiData(Integer galleryId) {
HitomiDTO galleryData = getGalleryData(galleryId);
if (galleryData == null) {
System.err.println("[ERR > Hitomi.GetHitomiData()] Failed to Get Gallery Data");
return null;
}
String GGJS = getGGJS();
if (GGJS == null) {
System.err.println("[ERR > Hitomi.GetHitomiData()] Failed to Get gg.js");
return null;
}
return galleryData;
}
ArrayList<String> images = new ArrayList<>();
galleryData.forEach((hash) -> images.add(getImageUrl(GGJS, hash)));
return images.get(0);
public static void main(String[] args) {
HitomiDTO test = GetHitomiData(3392566);
System.out.println(test.getTagsAsString());
}
}