forked from GitHub-Mirror/riotX-android
67 lines
2.2 KiB
Kotlin
67 lines
2.2 KiB
Kotlin
/*
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* Copyright 2019 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package im.vector.matrix.android.api.pushrules
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import im.vector.matrix.android.api.session.events.model.Event
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import im.vector.matrix.android.api.session.room.RoomService
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import timber.log.Timber
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private val regex = Regex("^(==|<=|>=|<|>)?(\\d*)$")
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class RoomMemberCountCondition(val `is`: String) : Condition(Kind.room_member_count) {
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override fun isSatisfied(conditionResolver: ConditionResolver): Boolean {
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return conditionResolver.resolveRoomMemberCountCondition(this)
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}
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override fun technicalDescription(): String {
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return "Room member count is $`is`"
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}
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fun isSatisfied(event: Event, session: RoomService?): Boolean {
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// sanity check^
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val roomId = event.roomId ?: return false
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val room = session?.getRoom(roomId) ?: return false
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// Parse the is field into prefix and number the first time
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val (prefix, count) = parseIsField() ?: return false
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val numMembers = room.getNumberOfJoinedMembers()
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return when (prefix) {
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"<" -> numMembers < count
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">" -> numMembers > count
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"<=" -> numMembers <= count
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">=" -> numMembers >= count
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else -> numMembers == count
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}
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}
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/**
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* Parse the is field to extract meaningful information.
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*/
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private fun parseIsField(): Pair<String?, Int>? {
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try {
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val match = regex.find(`is`) ?: return null
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val (prefix, count) = match.destructured
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return prefix to count.toInt()
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} catch (t: Throwable) {
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Timber.d(t)
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}
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return null
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}
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} |