Files
mattermost-mobile/android/app/src/main/java/com/mattermost/helpers/PushNotificationDataHelper.kt
2022-08-19 16:29:15 -04:00

296 lines
15 KiB
Kotlin

package com.mattermost.helpers
import android.content.Context
import android.os.Bundle
import android.util.Log
import com.facebook.react.bridge.Arguments
import com.facebook.react.bridge.ReadableArray
import com.facebook.react.bridge.ReadableMap
import com.facebook.react.bridge.WritableNativeArray
import com.nozbe.watermelondb.Database
import java.io.IOException
import java.util.concurrent.Executors
import kotlin.coroutines.*
import kotlinx.coroutines.*
class PushNotificationDataHelper(private val context: Context) {
private var scope = Executors.newSingleThreadExecutor()
fun fetchAndStoreDataForPushNotification(initialData: Bundle) {
scope.execute(Runnable {
runBlocking {
PushNotificationDataRunnable.start(context, initialData)
}
})
}
}
class PushNotificationDataRunnable {
companion object {
private val specialMentions = listOf("all", "here", "channel")
@Synchronized
suspend fun start(context: Context, initialData: Bundle) {
try {
val serverUrl: String = initialData.getString("server_url") ?: return
val channelId = initialData.getString("channel_id")
val rootId = initialData.getString("root_id")
val isCRTEnabled = initialData.getString("is_crt_enabled") == "true"
val db = DatabaseHelper.instance!!.getDatabaseForServer(context, serverUrl)
Log.i("ReactNative", "Start fetching notification data in server="+serverUrl+" for channel="+channelId)
if (db != null) {
var postData: ReadableMap?
var posts: ReadableMap? = null
var userIdsToLoad: ReadableArray? = null
var usernamesToLoad: ReadableArray? = null
var threads: ReadableArray? = null
var usersFromThreads: ReadableArray? = null
val receivingThreads = isCRTEnabled && !rootId.isNullOrEmpty()
coroutineScope {
if (channelId != null) {
postData = fetchPosts(db, serverUrl, channelId, isCRTEnabled, rootId)
posts = postData?.getMap("posts")
userIdsToLoad = postData?.getArray("userIdsToLoad")
usernamesToLoad = postData?.getArray("usernamesToLoad")
threads = postData?.getArray("threads")
usersFromThreads = postData?.getArray("usersFromThreads")
if (userIdsToLoad != null && userIdsToLoad!!.size() > 0) {
val users = fetchUsersById(serverUrl, userIdsToLoad!!)
userIdsToLoad = users?.getArray("data")
}
if (usernamesToLoad != null && usernamesToLoad!!.size() > 0) {
val users = fetchUsersByUsernames(serverUrl, usernamesToLoad!!)
usernamesToLoad = users?.getArray("data")
}
}
}
db.transaction {
if (posts != null && channelId != null) {
DatabaseHelper.instance!!.handlePosts(db, posts!!.getMap("data"), channelId, receivingThreads)
}
if (threads != null) {
DatabaseHelper.instance!!.handleThreads(db, threads!!)
}
if (userIdsToLoad != null && userIdsToLoad!!.size() > 0) {
DatabaseHelper.instance!!.handleUsers(db, userIdsToLoad!!)
}
if (usernamesToLoad != null && usernamesToLoad!!.size() > 0) {
DatabaseHelper.instance!!.handleUsers(db, usernamesToLoad!!)
}
if (usersFromThreads != null) {
DatabaseHelper.instance!!.handleUsers(db, usersFromThreads!!)
}
}
db.close()
Log.i("ReactNative", "Done processing push notification="+serverUrl+" for channel="+channelId)
}
} catch (e: Exception) {
e.printStackTrace()
}
}
private suspend fun fetchPosts(db: Database, serverUrl: String, channelId: String, isCRTEnabled: Boolean, rootId: String?): ReadableMap? {
val regex = Regex("""\B@(([a-z0-9-._]*[a-z0-9_])[.-]*)""", setOf(RegexOption.IGNORE_CASE))
val since = DatabaseHelper.instance!!.queryPostSinceForChannel(db, channelId)
val currentUserId = DatabaseHelper.instance!!.queryCurrentUserId(db)?.removeSurrounding("\"")
val currentUser = DatabaseHelper.instance!!.find(db, "User", currentUserId)
val currentUsername = currentUser?.getString("username")
var additionalParams = ""
if (isCRTEnabled) {
additionalParams = "&collapsedThreads=true&collapsedThreadsExtended=true"
}
val receivingThreads = isCRTEnabled && !rootId.isNullOrEmpty()
val endpoint = if (receivingThreads) {
val queryParams = "?skipFetchThreads=false&perPage=60&fromCreatedAt=0&direction=up"
"/api/v4/posts/$rootId/thread$queryParams$additionalParams"
} else {
val queryParams = if (since == null) "?page=0&per_page=60" else "?since=${since.toLong()}"
"/api/v4/channels/$channelId/posts$queryParams$additionalParams"
}
val postsResponse = fetch(serverUrl, endpoint)
val results = Arguments.createMap()
if (postsResponse != null) {
val data = ReadableMapUtils.toMap(postsResponse)
results.putMap("posts", postsResponse)
val postsData = data["data"] as? Map<*, *>
if (postsData != null) {
val postsMap = postsData["posts"]
if (postsMap != null) {
val posts = ReadableMapUtils.toWritableMap(postsMap as? Map<String, Any>)
val iterator = posts.keySetIterator()
val userIds = mutableListOf<String>()
val usernames = mutableListOf<String>()
val threads = WritableNativeArray()
val threadParticipantUserIds = mutableListOf<String>() // Used to exclude the "userIds" present in the thread participants
val threadParticipantUsernames = mutableListOf<String>() // Used to exclude the "usernames" present in the thread participants
val threadParticipantUsers = HashMap<String, ReadableMap>() // All unique users from thread participants are stored here
while(iterator.hasNextKey()) {
val key = iterator.nextKey()
val post = posts.getMap(key)
val userId = post?.getString("user_id")
if (userId != null && userId != currentUserId && !userIds.contains(userId)) {
userIds.add(userId)
}
val message = post?.getString("message")
if (message != null) {
val matchResults = regex.findAll(message)
matchResults.iterator().forEach {
val username = it.value.removePrefix("@")
if (!usernames.contains(username) && currentUsername != username && !specialMentions.contains(username)) {
usernames.add(username)
}
}
}
if (isCRTEnabled) {
// Add root post as a thread
val threadId = post?.getString("root_id")
if (threadId.isNullOrEmpty()) {
threads.pushMap(post!!)
}
// Add participant userIds and usernames to exclude them from getting fetched again
val participants = post.getArray("participants")
if (participants != null) {
for (i in 0 until participants.size()) {
val participant = participants.getMap(i)
val participantId = participant.getString("id")
if (participantId != currentUserId && participantId != null) {
if (!threadParticipantUserIds.contains(participantId)) {
threadParticipantUserIds.add(participantId)
}
if (!threadParticipantUsers.containsKey(participantId)) {
threadParticipantUsers[participantId] = participant
}
}
val username = participant.getString("username")
if (username != null && username != currentUsername && !threadParticipantUsernames.contains(username)) {
threadParticipantUsernames.add(username)
}
}
}
}
}
val existingUserIds = DatabaseHelper.instance!!.queryIds(db, "User", userIds.toTypedArray())
val existingUsernames = DatabaseHelper.instance!!.queryByColumn(db, "User", "username", usernames.toTypedArray())
userIds.removeAll { it in existingUserIds }
usernames.removeAll { it in existingUsernames }
if (threadParticipantUserIds.size > 0) {
// Do not fetch users found in thread participants as we get the user's data in the posts response already
userIds.removeAll { it in threadParticipantUserIds }
usernames.removeAll { it in threadParticipantUsernames }
// Get users from thread participants
val existingThreadParticipantUserIds = DatabaseHelper.instance!!.queryIds(db, "User", threadParticipantUserIds.toTypedArray())
// Exclude the thread participants already present in the DB from getting inserted again
val usersFromThreads = WritableNativeArray()
threadParticipantUsers.forEach{ (userId, user) ->
if (!existingThreadParticipantUserIds.contains(userId)) {
usersFromThreads.pushMap(user)
}
}
if (usersFromThreads.size() > 0) {
results.putArray("usersFromThreads", usersFromThreads)
}
}
if (userIds.size > 0) {
results.putArray("userIdsToLoad", ReadableArrayUtils.toWritableArray(userIds.toTypedArray()))
}
if (usernames.size > 0) {
results.putArray("usernamesToLoad", ReadableArrayUtils.toWritableArray(usernames.toTypedArray()))
}
if (threads.size() > 0) {
results.putArray("threads", threads)
}
}
}
}
return results
}
private suspend fun fetchUsersById(serverUrl: String, userIds: ReadableArray): ReadableMap? {
val endpoint = "api/v4/users/ids"
val options = Arguments.createMap()
options.putArray("body", ReadableArrayUtils.toWritableArray(ReadableArrayUtils.toArray(userIds)))
return fetchWithPost(serverUrl, endpoint, options)
}
private suspend fun fetchUsersByUsernames(serverUrl: String, usernames: ReadableArray): ReadableMap? {
val endpoint = "api/v4/users/usernames"
val options = Arguments.createMap()
options.putArray("body", ReadableArrayUtils.toWritableArray(ReadableArrayUtils.toArray(usernames)))
return fetchWithPost(serverUrl, endpoint, options)
}
private suspend fun fetch(serverUrl: String, endpoint: String): ReadableMap? {
return suspendCoroutine { cont ->
Network.get(serverUrl, endpoint, null, object : ResolvePromise() {
override fun resolve(value: Any?) {
val response = value as ReadableMap?
if (response != null && !response.getBoolean("ok")) {
val error = response.getMap("data")
cont.resumeWith(Result.failure((IOException("Unexpected code ${error?.getInt("status_code")} ${error?.getString("message")}"))))
} else {
cont.resumeWith(Result.success(response))
}
}
override fun reject(code: String, message: String) {
cont.resumeWith(Result.failure(IOException("Unexpected code $code $message")))
}
override fun reject(reason: Throwable?) {
cont.resumeWith(Result.failure(IOException("Unexpected code $reason")))
}
})
}
}
private suspend fun fetchWithPost(serverUrl: String, endpoint: String, options: ReadableMap?) : ReadableMap? {
return suspendCoroutine { cont ->
Network.post(serverUrl, endpoint, options, object : ResolvePromise() {
override fun resolve(value: Any?) {
val response = value as ReadableMap?
cont.resumeWith(Result.success(response))
}
override fun reject(code: String, message: String) {
cont.resumeWith(Result.failure(IOException("Unexpected code $code $message")))
}
override fun reject(reason: Throwable?) {
cont.resumeWith(Result.failure(IOException("Unexpected code $reason")))
}
})
}
}
}
}