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telegram_backup
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Code Issues Releases Wiki Activity

You can now restrict the downloading of channels and supergroups by defining black- and whitelists in config.ini

This commit is contained in:
Fabian Schlenz 2018-03-13 06:30:39 +01:00
parent 19973818f8
commit 25a01fae4b
3 changed files with 117 additions and 64 deletions
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131
src/main/kotlin/de/fabianonline/telegram_backup/DownloadManager.kt
View File

@ -106,19 +106,14 @@ class DownloadManager(internal var client: TelegramClient?, p: DownloadProgressI
@Throws(RpcErrorException::class, IOException::class, TimeoutException::class)
fun _downloadMessages(limit: Int?) {
logger.info("This is _downloadMessages with limit {}", limit)
val dialog_limit = 100
logger.info("Downloading the last {} dialogs", dialog_limit)
logger.info("Downloading the last dialogs")
System.out.println("Downloading most recent dialogs... ")
var max_message_id = 0
val dialogs = client!!.messagesGetDialogs(
0,
0,
TLInputPeerEmpty(),
dialog_limit)
logger.debug("Got {} dialogs", dialogs.getDialogs().size)
val chats = getChats()
logger.debug("Got {} dialogs, {} supergoups, {} channels", chats.dialogs.size, chats.supergroups.size, chats.channels.size)
for (d in dialogs.getDialogs()) {
if (d.getTopMessage() > max_message_id && d.getPeer() !is TLPeerChannel) {
for (d in chats.dialogs) {
if (d.getTopMessage() > max_message_id) {
logger.trace("Updating top message id: {} => {}. Dialog type: {}", max_message_id, d.getTopMessage(), d.getPeer().javaClass)
max_message_id = d.getTopMessage()
}
@ -179,63 +174,32 @@ class DownloadManager(internal var client: TelegramClient?, p: DownloadProgressI
*/
if (IniSettings.download_channels || IniSettings.download_supergroups) {
System.out.println("Processing channels and/or supergroups...")
System.out.println("Please note that only channels/supergroups in the last 100 active chats are processed.")
val channel_access_hashes = HashMap<Int, Long>()
val channel_names = HashMap<Int, String>()
val channels = LinkedList<Int>()
val supergroups = LinkedList<Int>()
// TODO Add chat title (and other stuff?) to the database
for (c in dialogs.getChats()) {
if (c is TLChannel) {
channel_access_hashes.put(c.getId(), c.getAccessHash())
channel_names.put(c.getId(), c.getTitle())
if (c.getMegagroup()) {
supergroups.add(c.getId())
} else {
channels.add(c.getId())
}
// Channel: TLChannel
// Supergroup: getMegagroup()==true
}
if (IniSettings.download_channels) {
println("Checking channels...")
for (channel in chats.channels) { if (channel.download) downloadMessagesFromChannel(channel) }
}
for (d in dialogs.getDialogs()) {
if (d.getPeer() is TLPeerChannel) {
val channel_id = (d.getPeer() as TLPeerChannel).getChannelId()
// If this is a channel and we don't want to download channels OR
// it is a supergroups and we don't want to download supergroups, then
if (channels.contains(channel_id) && !IniSettings.download_channels || supergroups.contains(channel_id) && !IniSettings.download_supergroups) {
// Skip this chat.
continue
}
val max_known_id = db!!.getTopMessageIDForChannel(channel_id)
if (d.getTopMessage() > max_known_id) {
val ids = makeIdList(max_known_id + 1, d.getTopMessage())
val access_hash = channel_access_hashes.get(channel_id) ?: throw RuntimeException("AccessHash for Channel missing.")
var channel_name = channel_names.get(channel_id)
if (channel_name == null) {
channel_name = "?"
}
val channel = TLInputChannel(channel_id, access_hash)
val source_type = if (supergroups.contains(channel_id)) {
MessageSource.SUPERGROUP
} else if (channels.contains(channel_id)) {
MessageSource.CHANNEL
} else {
throw RuntimeException("chat is neither in channels nor in supergroups...")
}
downloadMessages(ids, channel, source_type=source_type, source_name=channel_name)
}
}
if (IniSettings.download_supergroups) {
println("Checking supergroups...")
for (supergroup in chats.supergroups) { if (supergroup.download) downloadMessagesFromChannel(supergroup) }
}
}
}
private fun downloadMessagesFromChannel(channel: Channel) {
val obj = channel.obj
val max_known_id = db!!.getTopMessageIDForChannel(channel.id)
if (obj.getTopMessage() > max_known_id) {
val ids = makeIdList(max_known_id + 1, obj.getTopMessage())
var channel_name = channel.title
val input_channel = TLInputChannel(channel.id, channel.access_hash)
val source_type = channel.message_source
downloadMessages(ids, input_channel, source_type=source_type, source_name=channel_name)
}
}
@Throws(RpcErrorException::class, IOException::class)
private fun downloadMessages(ids: MutableList<Int>, channel: TLInputChannel?, source_type: MessageSource = MessageSource.NORMAL, source_name: String? = null) {
@ -385,6 +349,49 @@ class DownloadManager(internal var client: TelegramClient?, p: DownloadProgressI
for (i in start..end) a.add(i)
return a
}
fun getChats(): ChatList {
val cl = ChatList()
logger.trace("Calling messagesGetDialogs")
val dialogs = client!!.messagesGetDialogs(0, 0, TLInputPeerEmpty(), 100)
logger.trace("Got {} dialogs back", dialogs.getDialogs().size)
// Add dialogs
cl.dialogs.addAll(dialogs.getDialogs().filter{it.getPeer() !is TLPeerChannel})
// Add supergoups and channels
for (tl_channel in dialogs.getChats().filter{it is TLChannel}.map{it as TLChannel}) {
val tl_peer_channel = dialogs.getDialogs().find{var p = it.getPeer() ; p is TLPeerChannel && p.getChannelId()==tl_channel.getId()}
if (tl_peer_channel == null) continue
var download = true
if (IniSettings.whitelist_channels != null) {
download = IniSettings.whitelist_channels!!.contains(tl_channel.getId().toString())
} else if (IniSettings.blacklist_channels != null) {
download = !IniSettings.blacklist_channels!!.contains(tl_channel.getId().toString())
}
val channel = Channel(id=tl_channel.getId(), access_hash=tl_channel.getAccessHash(), title=tl_channel.getTitle(), obj=tl_peer_channel, download=download)
if (tl_channel.getMegagroup()) {
channel.message_source = MessageSource.SUPERGROUP
cl.supergroups.add(channel)
} else {
channel.message_source = MessageSource.CHANNEL
cl.channels.add(channel)
}
}
return cl
}
class ChatList {
val dialogs = mutableListOf<TLDialog>()
val supergroups = mutableListOf<Channel>()
val channels = mutableListOf<Channel>()
}
class Channel(val id: Int, val access_hash: Long, val title: String, val obj: TLDialog, val download: Boolean) {
lateinit var message_source: MessageSource
}
companion object {
internal var download_client: TelegramClient? = null

11
src/main/kotlin/de/fabianonline/telegram_backup/IniSettings.kt
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@ -55,8 +55,13 @@ object IniSettings {
fun println() = println(settings)
fun get(key: String, default: String? = null): String? = settings.get(key)?.last() ?: default
fun getStringList(key: String): List<String>? = settings.get(key)
fun getInt(key: String, default: Int? = null): Int? = try { settings.get(key)?.last()?.toInt() } catch (e: NumberFormatException) { null } ?: default
fun getBoolean(key: String, default: Boolean = false): Boolean = settings.get(key)?.last() == "true"
fun getBoolean(key: String, default: Boolean = false): Boolean {
val value = settings.get(key)?.last()
if (value==null) return default
return value=="true"
}
fun getArray(key: String): List<String> = settings.get(key) ?: listOf<String>()
val gmaps_key: String
@ -71,4 +76,8 @@ object IniSettings {
get() = getBoolean("download_channels", default=false)
val download_supergroups: Boolean
get() = getBoolean("download_supergroups", default=false)
val whitelist_channels: List<String>?
get() = getStringList("whitelist_channels")
val blacklist_channels: List<String>?
get() = getStringList("blacklist_channels")
}

39
src/main/resources/config.sample.ini
View File

@ -18,6 +18,43 @@
## Download media files
# download_media = true
## Don't download supergroups and channels by default
## Downloads of channels and supergroups
## Here you can specify which channels and supergroups
## should be downloaded. The rules for this are:
## 1. Channels and supergroups are NEVER downloaded unless download_channels and/or
## download_supergroups is set to true.
## 2. If there is at least one entry called whitelist_channels, ONLY channels and/or
## supergroups that are listed in the whitelist will be downloaded.
## 3. Only if there are NO channels whitelisted, entrys listed as blacklist_channels
## will not be downloaded, all other channels / supergroups will be.
##
## In other words:
## * Set download_channels and/or download_supergroups to true if you want to include
## those types in your backup.
## * If you use neither black- nor whitelist, all channels (if you set download_channels
## to true) / supergroups (if you set download_supergroups to true) get downloaded.
## * If you set a whitelist, only listed channels / supergroups (there is no distinction
## made here) will be loaded.
## * If you set a blacklist, everything except the listed channels / supergroups (again,
## although the entry is called whitelist_channels it affects channels AND supergroups)
## will be loaded.
## * If you set a whitelist AND a blacklist, the blacklist will be ignored.
##
## Call the app with `--list-channels` to list the available channels and supergroups
## with their IDs. That list will also tell you if a channel / supergroup will be
## be downloaded according to your black- and whitelists.
##
## You can have more than one whitelist_channels and/or blacklist_channels entries
## to build your list. One ID per entry.
# download_channels = false
# download_supergroups = false
# blacklist_channels = 12345678
# blacklist_channels = 8886542
# blacklist_channels = 715952
# whitelist_channels = 238572935
# whitelist_channels = 23857623