SubwayTooter-Android-App/app/src/main/java/jp/juggler/subwaytooter/api/entity/TootInstance.kt

376 lines
11 KiB
Kotlin

package jp.juggler.subwaytooter.api.entity
import android.os.SystemClock
import jp.juggler.subwaytooter.App1
import jp.juggler.subwaytooter.Pref
import jp.juggler.subwaytooter.api.TootApiClient
import jp.juggler.subwaytooter.api.TootApiResult
import jp.juggler.subwaytooter.api.TootParser
import jp.juggler.subwaytooter.table.SavedAccount
import jp.juggler.subwaytooter.util.LinkHelper
import jp.juggler.subwaytooter.util.VersionString
import jp.juggler.util.JsonObject
import jp.juggler.util.groupEx
import jp.juggler.util.toPostRequestBuilder
import okhttp3.Request
import java.util.*
import java.util.regex.Pattern
import kotlin.collections.ArrayList
import kotlin.math.max
class TootInstance(parser : TootParser, src : JsonObject) {
// いつ取得したか(内部利用)
private var time_parse : Long = SystemClock.elapsedRealtime()
val isExpire : Boolean
get() = SystemClock.elapsedRealtime() - time_parse >= EXPIRE
// URI of the current instance
val uri : String?
// The instance's title
val title : String?
// A description for the instance
// (HTML)
// (Mastodon: 3.0.0より後のWebUIでは全く使われなくなる見込み。 https://github.com/tootsuite/mastodon/pull/12119)
val description : String?
// (Mastodon 3.0.0以降)
// (HTML)
val short_description : String?
// An email address which can be used to contact the instance administrator
// misskeyの場合はURLらしい
val email : String?
val version : String?
// バージョンの内部表現
private val decoded_version : VersionString
// インスタンスのサムネイル。推奨サイズ1200x630px。マストドン1.6.1以降。
val thumbnail : String?
// ユーザ数等の数字。マストドン1.6以降。
val stats : Stats?
// 言語のリスト。マストドン2.3.0以降
val languages : ArrayList<String>?
val contact_account : TootAccount?
// (Pleroma only) トゥートの最大文字数
val max_toot_chars : Int?
// (Mastodon 3.0.0)
val approval_required : Boolean
// インスタンスの種別
enum class InstanceType {
Mastodon,
Misskey,
Pixelfed,
Pleroma
}
val instanceType : InstanceType
// XXX: urls をパースしてない。使ってないから…
init {
if(parser.serviceType == ServiceType.MISSKEY) {
this.uri = parser.accessHost
this.title = parser.accessHost
val sv = src.jsonObject("maintainer")?.string("url")
this.email = when {
sv?.startsWith("mailto:") == true -> sv.substring(7)
else -> sv
}
this.version = src.string("version")
this.decoded_version = VersionString(version)
this.stats = null
this.thumbnail = null
this.max_toot_chars = src.int("maxNoteTextLength")
this.instanceType = InstanceType.Misskey
this.languages = src.jsonArray("langs")?.stringArrayList() ?: ArrayList()
this.contact_account = null
this.description = src.string("description")
this.short_description = null
this.approval_required = false
} else {
this.uri = src.string("uri")
this.title = src.string("title")
val sv = src.string("email")
this.email = when {
sv?.startsWith("mailto:") == true -> sv.substring(7)
else -> sv
}
this.version = src.string("version")
this.decoded_version = VersionString(version)
this.stats = parseItem(::Stats, src.jsonObject("stats"))
this.thumbnail = src.string("thumbnail")
this.max_toot_chars = src.int("max_toot_chars")
this.instanceType = when {
rePleroma.matcher(version ?: "").find() -> InstanceType.Pleroma
rePixelfed.matcher(version ?: "").find() -> InstanceType.Pixelfed
else -> InstanceType.Mastodon
}
languages = src.jsonArray("languages")?.stringArrayList()
val parser2 = TootParser(
parser.context,
LinkHelper.newLinkHelper(uri ?: "?")
)
contact_account =
parseItem(::TootAccount, parser2, src.jsonObject("contact_account"))
this.description = src.string("description")
this.short_description = src.string("short_description")
this.approval_required = src.boolean("approval_required") ?: false
}
}
class Stats(src : JsonObject) {
val user_count : Long
val status_count : Long
val domain_count : Long
init {
this.user_count = src.long("user_count") ?: - 1L
this.status_count = src.long("status_count") ?: - 1L
this.domain_count = src.long("domain_count") ?: - 1L
}
}
fun versionGE(check : VersionString) : Boolean {
if(decoded_version.isEmpty || check.isEmpty) return false
val i = VersionString.compare(decoded_version, check)
return i >= 0
}
val misskeyVersion : Int
get() = when {
instanceType != InstanceType.Misskey -> 0
versionGE(MISSKEY_VERSION_11) -> 11
else -> 10
}
companion object {
private val rePleroma = Pattern.compile("""\bpleroma\b""", Pattern.CASE_INSENSITIVE)
private val rePixelfed = Pattern.compile("""\bpixelfed\b""", Pattern.CASE_INSENSITIVE)
val VERSION_1_6 = VersionString("1.6")
val VERSION_2_4_0_rc1 = VersionString("2.4.0rc1")
val VERSION_2_4_0_rc2 = VersionString("2.4.0rc2")
// val VERSION_2_4_0 = VersionString("2.4.0")
// val VERSION_2_4_1_rc1 = VersionString("2.4.1rc1")
val VERSION_2_4_1 = VersionString("2.4.1")
val VERSION_2_6_0 = VersionString("2.6.0")
val VERSION_2_7_0_rc1 = VersionString("2.7.0rc1")
val VERSION_3_0_0_rc1 = VersionString("3.0.0rc1")
val VERSION_3_1_0_rc1 = VersionString("3.1.0rc1")
val MISSKEY_VERSION_11 = VersionString("11.0")
private val reDigits = Pattern.compile("(\\d+)")
private const val EXPIRE = (1000 * 3600).toLong()
const val DESCRIPTION_DEFAULT = "(no description)"
// 引数はtoken_infoかTootInstanceのパース前のいずれか
fun parseMisskeyVersion(token_info : JsonObject) : Int {
return when(val o = token_info[TootApiClient.KEY_MISSKEY_VERSION]) {
is Int -> o
is Boolean -> if(o) 10 else 0
else -> 0
}
}
// 疑似アカウントの追加時に、インスタンスの検証を行う
private fun TootApiClient.getInstanceInformationMastodon() : TootApiResult? {
val result = TootApiResult.makeWithCaption(instance)
if(result.error != null) return result
if(sendRequest(result) {
Request.Builder().url("https://$instance/api/v1/instance").build()
}
) {
parseJson(result) ?: return null
}
// misskeyの事は忘れて本来のエラー情報を返す
return result
}
// 疑似アカウントの追加時に、インスタンスの検証を行う
private fun TootApiClient.getInstanceInformationMisskey() : TootApiResult? {
val result = TootApiResult.makeWithCaption(instance)
if(result.error != null) return result
if(sendRequest(result) {
JsonObject().apply {
put("dummy", 1)
}
.toPostRequestBuilder()
.url("https://$instance/api/meta")
.build()
}) {
parseJson(result) ?: return null
result.jsonObject?.apply {
val m = reDigits.matcher(string("version") ?: "")
if(m.find()) {
put(TootApiClient.KEY_MISSKEY_VERSION, max(1, m.groupEx(1) !!.toInt()))
}
}
}
return result
}
// 疑似アカウントの追加時に、インスタンスの検証を行う
private fun TootApiClient.getInstanceInformation() : TootApiResult? {
// misskeyのインスタンス情報を読めたら、それはmisskeyのインスタンス
val r2 = getInstanceInformationMisskey() ?: return null
if(r2.jsonObject != null) return r2
// マストドンのインスタンス情報を読めたら、それはマストドンのインスタンス
val r1 = getInstanceInformationMastodon() ?: return null
if(r1.jsonObject != null) return r1
return r1 // 通信エラーの表示ならr1でもr2でも構わないはず
}
// インスタンス情報のキャッシュ。同期オブジェクトを兼ねる
class CacheEntry(var data : TootInstance? = null)
private val cache = HashMap<String, CacheEntry>()
private fun getCacheEntry(hostLower : String) : CacheEntry =
synchronized(cache) {
var item = cache[hostLower]
if(item == null) {
item = CacheEntry()
cache[hostLower] = item
}
item
}
// get from cache
// no request, no expiration check
fun getCached(host : String) = getCacheEntry(host.toLowerCase(Locale.JAPAN)).data
fun get(
client : TootApiClient,
host : String? = client.instance,
account : SavedAccount? = if(host == client.instance) client.account else null,
allowPixelfed : Boolean = false,
forceUpdate : Boolean = false
) : Pair<TootInstance?, TootApiResult?> {
val tmpInstance = client.instance
val tmpAccount = client.account
try {
client.account = account
if(host != null) client.instance = host
val instanceName = client.instance !!.toLowerCase(Locale.JAPAN)
// ホスト名ごとに用意したオブジェクトで同期する
val cacheEntry = getCacheEntry(instanceName)
synchronized(cacheEntry) {
var item : TootInstance?
if(! forceUpdate) {
// re-use cached item.
val now = SystemClock.elapsedRealtime()
item = cacheEntry.data
if(item != null && now - item.time_parse <= EXPIRE) {
if(item.instanceType == InstanceType.Pixelfed &&
! Pref.bpEnablePixelfed(App1.pref) &&
! allowPixelfed
) {
return Pair(
null,
TootApiResult("currently Pixelfed instance is not supported.")
)
}
return Pair(item, TootApiResult())
}
}
// get new information
val result = if(account != null) {
if(account.isMisskey) {
val params = JsonObject().apply {
put("dummy", 1)
}
client.request("/api/meta", params.toPostRequestBuilder())
} else {
client.request("/api/v1/instance")
}
} else {
client.getInstanceInformation()
}
val json = result?.jsonObject ?: return Pair(null, result)
item = parseItem(
::TootInstance,
if(account != null) {
TootParser(client.context, account)
} else {
TootParser(
client.context,
LinkHelper.newLinkHelper(
instanceName,
misskeyVersion = parseMisskeyVersion(json)
)
)
},
json
)
return when {
item == null ->
Pair(
null,
result.setError("instance information parse error.")
)
item.instanceType == InstanceType.Pixelfed &&
! Pref.bpEnablePixelfed(App1.pref) &&
! allowPixelfed ->
Pair(
null,
result.setError("currently Pixelfed instance is not supported.")
)
else -> {
cacheEntry.data = item
Pair(item, result)
}
}
}
} finally {
client.account = tmpAccount
client.instance = tmpInstance // must be last.
}
}
}
}