Files
Pupil/libpupil/src/main/java/xyz/quaver/hitomi/common.kt
2020-01-15 11:28:38 +09:00

87 lines
2.6 KiB
Kotlin

/*
* Copyright 2019 tom5079
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package xyz.quaver.hitomi
import kotlinx.serialization.json.Json
import kotlinx.serialization.json.JsonConfiguration
import kotlinx.serialization.list
import java.net.URL
const val protocol = "https:"
fun getGalleryInfo(galleryID: Int): List<GalleryInfo> {
return Json(JsonConfiguration.Stable).parse(
GalleryInfo.serializer().list,
Regex("""\[.+]""").find(
URL("$protocol//$domain/galleries/$galleryID.js").readText()
)?.value ?: "[]"
)
}
//common.js
var adapose = false
const val numberOfFrontends = 3
const val domain = "ltn.hitomi.la"
const val galleryblockdir = "galleryblock"
const val nozomiextension = ".nozomi"
fun subdomainFromGalleryID(g: Int) : String {
if (adapose)
return "0"
val o = g % numberOfFrontends
return (97+o).toChar().toString()
}
fun subdomainFromURL(url: String, base: String? = null) : String {
var retval = "a"
if (!base.isNullOrBlank())
retval = base
val b = 16
val r = Regex("""/[0-9a-f]/([0-9a-f]{2})/""")
val m = r.find(url) ?: return retval
val g = m.groupValues[1].toIntOrNull(b) ?: return retval
retval = subdomainFromGalleryID(g) + retval
return retval
}
fun urlFromURL(url: String, base: String? = null) : String {
return url.replace(Regex("""//..?\.hitomi\.la/"""), "//${subdomainFromURL(url, base)}.hitomi.la/")
}
fun fullPathFromHash(hash: String?) : String? {
return when {
(hash?.length ?: 0) < 3 -> hash
else -> hash!!.replace(Regex("^.*(..)(.)$"), "$2/$1/$hash")
}
}
@Suppress("NAME_SHADOWING", "UNUSED_PARAMETER")
fun urlFromHash(galleryID: Int, image: GalleryInfo, dir: String? = null, ext: String? = null) : String {
val ext = ext ?: dir ?: image.name.split('.').last()
val dir = dir ?: "images"
return "$protocol//a.hitomi.la/$dir/${fullPathFromHash(image.hash)}.$ext"
}
fun urlFromUrlFromHash(galleryID: Int, image: GalleryInfo, dir: String? = null, ext: String? = null, base: String? = null) =
urlFromURL(urlFromHash(galleryID, image, dir, ext), base)