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queue blob and channel deletions per-user

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This commit is contained in:
ansuz 2020-04-09 16:29:52 -04:00
parent bd3e18d1a8
commit e527867e2e
2 changed files with 20 additions and 9 deletions
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28
lib/commands/channel.js
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@ -54,16 +54,8 @@ Channel.clearOwnedChannel = function (Env, safeKey, channelId, cb, Server) {
});
};
Channel.removeOwnedChannel = function (Env, safeKey, channelId, cb, Server) {
if (typeof(channelId) !== 'string' || !Core.isValidId(channelId)) {
return cb('INVALID_ARGUMENTS');
}
var archiveOwnedChannel = function (Env, safeKey, channelId, cb, Server) {
var unsafeKey = Util.unescapeKeyCharacters(safeKey);
if (Env.blobStore.isFileId(channelId)) {
return void Env.removeOwnedBlob(channelId, safeKey, cb);
}
Metadata.getMetadata(Env, channelId, function (err, metadata) {
if (err) { return void cb(err); }
if (!Core.hasOwners(metadata)) { return void cb('E_NO_OWNERS'); }
@ -124,6 +116,24 @@ Channel.removeOwnedChannel = function (Env, safeKey, channelId, cb, Server) {
});
};
Channel.removeOwnedChannel = function (Env, safeKey, channelId, __cb, Server) {
var _cb = Util.once(Util.mkAsync(__cb));
if (typeof(channelId) !== 'string' || !Core.isValidId(channelId)) {
return _cb('INVALID_ARGUMENTS');
}
// archiving large channels or files can be expensive, so do it one at a time
// for any given user to ensure that nobody can use too much of the server's resources
Env.queueDeletes(safeKey, function (next) {
var cb = Util.both(_cb, next);
if (Env.blobStore.isFileId(channelId)) {
return void Env.removeOwnedBlob(channelId, safeKey, cb);
}
archiveOwnedChannel(Env, safeKey, channelId, cb, Server);
});
};
Channel.trimHistory = function (Env, safeKey, data, cb) {
if (!(data && typeof(data.channel) === 'string' && typeof(data.hash) === 'string' && data.hash.length === 64)) {
return void cb('INVALID_ARGS');

1
lib/historyKeeper.js
View File

@ -38,6 +38,7 @@ module.exports.create = function (config, cb) {
metadata_cache: {},
channel_cache: {},
queueStorage: WriteQueue(),
queueDeletes: WriteQueue(),
batchIndexReads: BatchRead("HK_GET_INDEX"),
batchMetadata: BatchRead('GET_METADATA'),