Migrates EventStore from Android's SQLLite to KMP

Fixes testing of libsodium between java and android
This commit is contained in:
Vitor Pamplona
2026-03-20 16:00:17 -04:00
parent c5066d89c3
commit d431b12f94
53 changed files with 22041 additions and 513 deletions
@@ -1,60 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
interface IEventStore {
fun insert(event: Event): Boolean
interface ITransaction {
fun insert(event: Event): Boolean
}
fun transaction(body: ITransaction.() -> Unit)
fun <T : Event> query(filter: Filter): List<T>
fun <T : Event> query(filters: List<Filter>): List<T>
fun <T : Event> query(
filter: Filter,
onEach: (T) -> Unit,
)
fun <T : Event> query(
filters: List<Filter>,
onEach: (T) -> Unit,
)
fun count(filter: Filter): Int
fun count(filters: List<Filter>): Int
fun delete(filter: Filter)
fun delete(filters: List<Filter>)
fun deleteExpiredEvents()
fun close()
}
@@ -1,170 +0,0 @@
# Event Store Module
This module implements an **Event Store** with nostr-native queries.
The goal was not to make the fastest database, since there could be multiple optimizations made if
consistency can be sacrificed, but a database that will never crash and never go corrupt.
## Features
- **Storage & Retrieval**:
Stores Nostr events and retrieves using Nostr filters
- **Replaceable Events**:
- Forces unique constraint by kind, pubkey
- Old versions are removed when newer versions arrive.
- Old versions are blocked if newer versions exist.
- **Addressable Events**:
- Forces unique constraint by kind, pubkey, d-tag
- Old versions are removed when newer versions arrive.
- Old versions are blocked if newer versions exist.
- **Ephemeral Events**
- Ephemeral events never stored.
- **NIP-40 Expirations**
- Deletes expired events.
- Blocks expired events from being reinserted
- **NIP-09 Deletion Events**
- Deletes by event id
- Deletes by address until the `created_at`
- Blocks deleted events from being re-inserted.
- GiftWraps are deleted by p-tag
- **NIP-62 Right to Vanish**
- Deletes all user events until the `created_at`
- Blocks vanished events from being re-inserted.
- GiftWraps are deleted by p-tag
- **NIP-45 Counts**:
- Counts records matching Nostr filters
- **NIP-50 Full Text Search**:
- Custom content/tag indexing
- Rich queries over event content and tags
- Indexes updated on replaceables, deletions, vanish and expirations.
- **NIP-91: AND operator for tags**:
- Allows queries matching two or more tags at the same time
- **Immutable Tables**
- Tables cannot be updated, only inserted and deleted.
## Indexing Strategy
The store indexes events using five dedicated tables:
- `event_headers`: stores the canonical event fields.
- `event_tags`: indexes tag values as a hash for fast filtering on tag-based queries.
- `event_fts`: for the content of full text search
- `event_expirations`: to control when expired events must be deleted.
- `event_vanish`: to control up to when vanished accounts must be blocked.
## Querying
This module supports optimized query planning, producing efficient SQL for multi-filter evaluation
across fields and tags, including `limit` clauses per filter:
For instance, the following filter:
```kotlin
store.query(
listOf(
Filter(limit = 10),
Filter(authors = listOf(hexkey), kinds = listOf(1, 1111), search = "keywords", limit = 100),
Filter(kinds = listOf(20), search = "cats", limit = 30),
)
)
```
## How to Use
The `EventStore` class provides a high-level interface for interacting with the event database.
It is initialized with a `SQLiteDatabase` instance, and it manages the underlying tables and query planning.
### Initialization
To initialize the `EventStore` in your Application class:
```kotlin
val eventStore = EventStore(context, "dbname.db", relayUrlIdentifier)
```
### Querying Events
To query events, use the `query` method with one or more `Filter` objects:
```kotlin
val filters = listOf(
Filter(limit = 10),
Filter(authors = listOf(hexkey))
)
val events = eventStore.query(filters)
```
or to receive events as the cursor sends:
```kotlin
val filters = listOf(
Filter(limit = 10),
Filter(authors = listOf(hexkey))
)
eventStore.query(filters) { event ->
// do something
}
```
`count` and `delete` also accept one or more filters.
### Inserting Events
Insert a single event using the `insert` method:
```kotlin
eventStore.insert(event)
```
### Deleting Events
Events should be deleted by adding a DeletionRequest or a VanishRequest to the db, but to manually
delete an event by ID, use the `delete` method:
```kotlin
eventStore.delete(event.id)
```
### Full-Text Search
The store supports full-text search using the `search` parameter in filters:
```kotlin
val result = eventStore.query(Filter(search = "bitcoin", limit = 20))
```
This will match any event whose content contains "bitcoin", returning the most recent 20 results.
### Periodic cleanup of expired events.
The store exposes a `deleteExpiredEvents` to be used in a periodic clean up procedure. Users
should use a WorkManager or a coroutine to periodically call `store.deleteExpiredEvents()`. We
recommend a 15-minute window to remove recently expired events from the database.
Here's an example of a Worker that should be added to your application class.
```kotlin
class ExpirationWorker(appContext: Context, workerParams: WorkerParameters) : Worker(appContext, workerParams) {
override fun doWork(): Result {
YourApplication.store.deleteExpiredEvents()
return Result.success()
}
}
fun schedulePeriodicWork(context: Context) {
val periodicWorkRequest =
PeriodicWorkRequestBuilder<ExpirationWorker>(15, TimeUnit.MINUTES).build()
WorkManager.getInstance(context).enqueue(periodicWorkRequest)
}
```
@@ -1,63 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
class AddressableModule : IModule {
override fun create(db: SQLiteDatabase) {
db.execSQL(
"""
CREATE UNIQUE INDEX addressable_idx
ON event_headers (kind, pubkey, d_tag)
WHERE kind >= 30000 AND kind < 40000
""".trimIndent(),
)
// deletes older addressables when inserting new ones
// if a newer addressable is inserted the unique index
// above will be triggered. Delete cascade will take
// care of the event_tags table
// the duplicate: kind >= 30000 AND kind < 40000
// helps SQLlite find the index above
db.execSQL(
"""
CREATE TRIGGER delete_older_addressable_event
BEFORE INSERT ON event_headers
FOR EACH ROW
WHEN (NEW.kind >= 30000 AND NEW.kind < 40000)
BEGIN
DELETE FROM event_headers
WHERE
event_headers.kind = NEW.kind AND
event_headers.pubkey = NEW.pubkey AND
event_headers.d_tag = NEW.d_tag AND
event_headers.created_at < NEW.created_at AND
event_headers.kind >= 30000 AND event_headers.kind < 40000;
END;
""".trimIndent(),
)
}
override fun drop(db: SQLiteDatabase) {}
override fun deleteAll(db: SQLiteDatabase) {}
}
@@ -1,190 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
import com.vitorpamplona.quartz.nip01Core.core.Address
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip01Core.core.HexKey
import com.vitorpamplona.quartz.nip01Core.core.isAddressable
import com.vitorpamplona.quartz.nip01Core.core.isReplaceable
import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent
class DeletionRequestModule(
val hasher: (db: SQLiteDatabase) -> TagNameValueHasher,
val indexStrategy: IndexingStrategy = DefaultIndexingStrategy(),
) : IModule {
fun rejectDeletedEventsSQLTemplate(): String =
if (indexStrategy.indexTagsWithKindAndPubkey) {
"""
|SELECT 1 FROM event_tags
|WHERE
| event_tags.tag_hash IN (NEW.etag_hash, NEW.atag_hash) AND
| event_tags.kind = 5 AND
| event_tags.pubkey_hash = NEW.pubkey_owner_hash AND
| event_tags.created_at >= NEW.created_at
""".trimMargin()
} else {
"""
|SELECT 1 FROM event_tags
|WHERE
| event_tags.tag_hash IN (NEW.etag_hash, NEW.atag_hash) AND
| event_tags.kind = 5 AND
| event_tags.created_at >= NEW.created_at AND
| event_tags.pubkey_hash = NEW.pubkey_owner_hash
""".trimMargin()
}
/**
* Creates a trigger to reject events that have been
* deleted by ID or ATag including GiftWraps that
* must be checked against the p-tag (pubkey_owner_hash)
*/
override fun create(db: SQLiteDatabase) {
val sql = rejectDeletedEventsSQLTemplate().replace("\n", "\n ")
db.execSQL(
"""
CREATE TRIGGER reject_deleted_events
BEFORE INSERT ON event_headers
FOR EACH ROW
BEGIN
SELECT RAISE(ABORT, 'blocked: a deletion event exists')
WHERE EXISTS (
$sql
);
END;
""".trimIndent(),
)
}
override fun drop(db: SQLiteDatabase) {}
override fun deleteAll(db: SQLiteDatabase) {}
fun insert(
event: Event,
db: SQLiteDatabase,
) {
if (event is DeletionEvent) {
val idValues = event.deleteEventIds()
val addresses = event.deleteAddresses()
deleteSQL(event.pubKey, idValues, addresses, hasher(db)).forEach { delete ->
db.execSQL(delete.sql, delete.args)
}
}
}
/**
* Creates a Delete statement that correctly deletes by id,
* by address and by replaceable (no d-tag) using each index
* appropriately, including GiftWraps where the owner is the
* p-tag (via event_header.pubkey_owner_hash)
*/
fun deleteSQL(
pubkey: HexKey,
idValues: List<String>,
addresses: List<Address>,
hasher: TagNameValueHasher,
): List<SqlArgs> {
val owner = hasher.hash(pubkey)
val idParams = idValues.joinToString(",") { "?" }
// aligns each type of param with the need to filter d-tag
// and thus each index type
val addressablesByKind = addresses.filter { it.kind.isAddressable() && it.pubKeyHex == pubkey }.groupBy { it.kind }
val replaceablesByKind = addresses.filter { it.kind.isReplaceable() && it.pubKeyHex == pubkey }.groupBy { it.kind }
val addressableParams =
addressablesByKind.keys.joinToString("\n OR\n ") {
val tagList = addressablesByKind[it]
if (tagList == null) {
""
} else if (tagList.size == 1) {
"(kind = ? AND pubkey = ? AND d_tag = ?)"
} else {
"(kind = ? AND pubkey = ? AND d_tag IN (${tagList.joinToString(",") { "?" }}))"
}
}
val addressableValues =
addressablesByKind.flatMap {
listOf<Any>(it.key.toLong(), pubkey) + it.value.map { it.dTag }
}
val replaceableKindsParam = replaceablesByKind.keys.joinToString(",") { "?" }
val replaceableKindsValues = replaceablesByKind.keys.map { it.toLong() }
val deleteById =
if (idValues.isNotEmpty()) {
SqlArgs(
"""
DELETE FROM event_headers
WHERE
id IN ($idParams) AND
pubkey_owner_hash = ?
""".trimIndent(),
idValues.plus(owner).toTypedArray(),
)
} else {
null
}
val deleteByAddress =
if (addressableValues.isNotEmpty()) {
SqlArgs(
"""
DELETE FROM event_headers
WHERE (
$addressableParams
) AND
kind >= 30000 AND kind < 40000
""".trimIndent(),
addressableValues.toTypedArray(),
)
} else {
null
}
val deleteByReplaceable =
if (replaceableKindsParam.isNotEmpty()) {
SqlArgs(
"""
DELETE FROM event_headers
WHERE
kind IN ($replaceableKindsParam) AND
pubkey = ? AND
((kind in (0,3)) OR (kind >= 10000 AND kind < 20000))
""".trimIndent(),
replaceableKindsValues.plus(pubkey).toTypedArray(),
)
} else {
null
}
return listOfNotNull(deleteById, deleteByAddress, deleteByReplaceable)
}
class SqlArgs(
val sql: String,
val args: Array<Any>,
)
}
@@ -1,44 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
class EphemeralModule : IModule {
override fun create(db: SQLiteDatabase) {
// Rejects all ephemeral events.
db.execSQL(
"""
CREATE TRIGGER reject_ephemeral_events
BEFORE INSERT ON event_headers
FOR EACH ROW
WHEN (NEW.kind >= 20000 AND NEW.kind < 30000)
BEGIN
SELECT RAISE(ABORT, 'blocked: cannot store ephemeral events');
END;
""".trimIndent(),
)
}
override fun drop(db: SQLiteDatabase) {}
override fun deleteAll(db: SQLiteDatabase) {}
}
@@ -1,220 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
import com.vitorpamplona.quartz.nip01Core.core.AddressSerializer
import com.vitorpamplona.quartz.nip01Core.core.AddressableEvent
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip01Core.core.OptimizedJsonMapper
import com.vitorpamplona.quartz.nip59Giftwrap.wraps.GiftWrapEvent
class EventIndexesModule(
val hasher: (db: SQLiteDatabase) -> TagNameValueHasher,
val indexStrategy: IndexingStrategy = DefaultIndexingStrategy(),
) : IModule {
override fun create(db: SQLiteDatabase) {
db.execSQL(
"""
CREATE TABLE event_headers (
row_id INTEGER PRIMARY KEY AUTOINCREMENT,
id TEXT NOT NULL,
pubkey TEXT NOT NULL,
created_at INTEGER NOT NULL,
kind INTEGER NOT NULL,
d_tag TEXT,
tags TEXT NOT NULL,
content TEXT NOT NULL,
sig TEXT NOT NULL,
pubkey_owner_hash INTEGER NOT NULL,
etag_hash INTEGER,
atag_hash INTEGER
)
""".trimIndent(),
)
db.execSQL(
"""
CREATE TABLE event_tags (
event_header_row_id INTEGER NOT NULL,
tag_hash INTEGER NOT NULL,
created_at INTEGER NOT NULL,
kind INTEGER NOT NULL,
pubkey_hash INTEGER NOT NULL,
FOREIGN KEY (event_header_row_id) REFERENCES event_headers(row_id) ON DELETE CASCADE
)
""".trimIndent(),
)
// queries by ID (load events)
db.execSQL("CREATE UNIQUE INDEX event_headers_id ON event_headers (id)")
val orderBy =
if (indexStrategy.useAndIndexIdOnOrderBy) {
"created_at DESC, id ASC"
} else {
"created_at DESC"
}
// queries by limit (latest records), since, until (sync all) alone without any filter by kind.. rare
if (indexStrategy.indexEventsByCreatedAtAlone) {
db.execSQL("CREATE INDEX query_by_created_at_id ON event_headers ($orderBy)")
}
// queries by kind only, mostly used in Global Feeds when author is not important.
db.execSQL("CREATE INDEX query_by_kind_created ON event_headers (kind, $orderBy)")
// queries by kind + pubkey, but not d-tag, even if they are replaceables and addressables, by date.
db.execSQL("CREATE INDEX query_by_kind_pubkey_created ON event_headers (kind, pubkey, $orderBy)")
// makes deletions on the event_header fast
db.execSQL("CREATE INDEX fk_event_tags_header_id ON event_tags (event_header_row_id)")
// ---------------------------------------------------------------------------
// These next 3 are a very slow indexes (80% of the insert time goes here)
// ---------------------------------------------------------------------------
if (indexStrategy.indexTagsByCreatedAtAlone) {
// First one is only needed if the user is searching by tags without a kind.
db.execSQL("CREATE INDEX query_by_tags_hash ON event_tags (tag_hash, created_at DESC)")
}
// This is the default index for most clients: tags by specific kinds that are supported by the client.
db.execSQL("CREATE INDEX query_by_tags_hash_kind ON event_tags (tag_hash, kind, created_at DESC)")
// this one is to allow search of tags by kind and author at the same time: NIP-04 DMs, reports,
if (indexStrategy.indexTagsWithKindAndPubkey) {
db.execSQL("CREATE INDEX query_by_tags_hash_kind_pubkey ON event_tags (tag_hash, kind, pubkey_hash, created_at DESC)")
}
// Prevent updates to maintain immutability
db.execSQL(
"""
CREATE TRIGGER event_headers_prevent_update
BEFORE UPDATE ON event_headers
FOR EACH ROW
BEGIN
SELECT RAISE(ABORT, 'Error: Updates are not allowed.');
END;
""".trimIndent(),
)
db.execSQL(
"""
CREATE TRIGGER event_tags_prevent_update
BEFORE UPDATE ON event_tags
FOR EACH ROW
BEGIN
SELECT RAISE(ABORT, 'Error: Updates are not allowed.');
END;
""".trimIndent(),
)
}
override fun drop(db: SQLiteDatabase) {
db.execSQL("DROP TABLE IF EXISTS event_tags")
db.execSQL("DROP TABLE IF EXISTS event_headers")
}
val sqlInsertHeader =
"""
INSERT INTO event_headers
(id, pubkey, created_at, kind, tags, content, sig, d_tag, pubkey_owner_hash, etag_hash, atag_hash)
VALUES
(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
""".trimIndent()
val sqlInsertTags =
"""
INSERT OR ROLLBACK INTO event_tags
(event_header_row_id, tag_hash, created_at, kind, pubkey_hash)
VALUES
(?,?,?,?,?)
""".trimIndent()
fun insert(
event: Event,
db: SQLiteDatabase,
): Long {
val hasher = hasher(db)
val stmt = db.compileStatement(sqlInsertHeader)
val kindLong = event.kind.toLong()
val pubkeyHash = hasher.hash(event.pubKey)
val eventOwnerHash =
if (event is GiftWrapEvent) {
event.recipientPubKey()?.let { hasher.hash(it) } ?: pubkeyHash
} else {
pubkeyHash
}
val eTagHash = hasher.hashETag(event.id)
stmt.bindString(1, event.id)
stmt.bindString(2, event.pubKey)
stmt.bindLong(3, event.createdAt)
stmt.bindLong(4, kindLong)
stmt.bindString(5, OptimizedJsonMapper.toJson(event.tags))
stmt.bindString(6, event.content)
stmt.bindString(7, event.sig)
if (event is AddressableEvent) {
val dTag = event.dTag()
stmt.bindString(8, dTag)
stmt.bindLong(9, eventOwnerHash)
stmt.bindLong(10, eTagHash)
stmt.bindLong(11, hasher.hashATag(AddressSerializer.assemble(event.kind, event.pubKey, dTag)))
} else {
stmt.bindNull(8)
stmt.bindLong(9, eventOwnerHash)
stmt.bindLong(10, eTagHash)
stmt.bindNull(11)
}
val headerId = stmt.executeInsert()
val stmtTags = db.compileStatement(sqlInsertTags)
// sorting helps SQLLite by avoiding
// rebalancing the tree every new insert
val indexableTags = ArrayList<Long>()
for (idx in event.tags.indices) {
if (indexStrategy.shouldIndex(event.kind, event.tags[idx])) {
indexableTags.add(hasher.hash(event.tags[idx][0], event.tags[idx][1]))
}
}
indexableTags.sort()
indexableTags.forEach {
stmtTags.bindLong(1, headerId)
stmtTags.bindLong(2, it)
stmtTags.bindLong(3, event.createdAt)
stmtTags.bindLong(4, kindLong)
stmtTags.bindLong(5, pubkeyHash)
stmtTags.executeInsert()
}
return headerId
}
override fun deleteAll(db: SQLiteDatabase) {
db.execSQL("DELETE FROM event_tags")
db.execSQL("DELETE FROM event_headers")
}
}
@@ -1,65 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.content.Context
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
import com.vitorpamplona.quartz.nip01Core.store.IEventStore
class EventStore(
context: Context,
dbName: String? = "events.db",
val relayUrl: String? = "wss://quartz.local",
val indexStrategy: IndexingStrategy = DefaultIndexingStrategy(),
) : IEventStore {
val store = SQLiteEventStore(context, dbName, relayUrl, indexStrategy)
override fun insert(event: Event) = store.insertEvent(event)
override fun transaction(body: IEventStore.ITransaction.() -> Unit) = store.transaction(body)
override fun <T : Event> query(filter: Filter) = store.query<T>(filter)
override fun <T : Event> query(filters: List<Filter>) = store.query<T>(filters)
override fun <T : Event> query(
filter: Filter,
onEach: (T) -> Unit,
) = store.query(filter, onEach)
override fun <T : Event> query(
filters: List<Filter>,
onEach: (T) -> Unit,
) = store.query(filters, onEach)
override fun count(filter: Filter) = store.count(filter)
override fun count(filters: List<Filter>) = store.count(filters)
override fun delete(filter: Filter) = store.delete(filter)
override fun delete(filters: List<Filter>) = store.delete(filters)
override fun deleteExpiredEvents() = store.deleteExpiredEvents()
override fun close() = store.close()
}
@@ -1,94 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip40Expiration.expiration
class ExpirationModule : IModule {
override fun create(db: SQLiteDatabase) {
db.execSQL(
"""
CREATE TABLE event_expirations (
event_header_row_id INTEGER PRIMARY KEY NOT NULL,
expiration INTEGER NOT NULL,
FOREIGN KEY (event_header_row_id) REFERENCES event_headers(row_id) ON DELETE CASCADE
)
""".trimIndent(),
)
// Rejects old addressables
db.execSQL(
"""
CREATE TRIGGER reject_expired_events
BEFORE INSERT ON event_expirations
FOR EACH ROW
BEGIN
-- Check for existing newer record
SELECT RAISE(ABORT, 'blocked: this event is expired')
WHERE NEW.expiration <= unixepoch();
END;
""".trimIndent(),
)
}
override fun drop(db: SQLiteDatabase) {
db.execSQL("DROP TABLE IF EXISTS event_expirations")
}
val insertExpiration =
"""
INSERT OR ROLLBACK INTO event_expirations (event_header_row_id, expiration)
VALUES (?, ?)
""".trimIndent()
fun insert(
event: Event,
headerId: Long,
db: SQLiteDatabase,
) {
val exp = event.expiration()
if (exp != null && exp > 0) {
val stmt = db.compileStatement(insertExpiration)
stmt.bindLong(1, headerId)
stmt.bindLong(2, exp)
stmt.executeInsert()
}
}
val deleteExpiredEvents =
"""
DELETE FROM event_headers
WHERE row_id IN (
SELECT event_expirations.event_header_row_id FROM event_expirations
WHERE event_expirations.expiration < unixepoch()
);
""".trimIndent()
fun deleteExpiredEvents(db: SQLiteDatabase) {
db.compileStatement(deleteExpiredEvents).execute()
}
override fun deleteAll(db: SQLiteDatabase) {
db.execSQL("DELETE FROM event_expirations")
}
}
@@ -1,96 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
import android.database.sqlite.SQLiteException
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip50Search.SearchableEvent
class FullTextSearchModule : IModule {
val tableName = "event_fts"
val eventHeaderRowIdName = "event_header_row_id"
val contentName = "content"
override fun create(db: SQLiteDatabase) {
val ftsVersion = FullTextSearchModule().versionFinder(db)
db.execSQL(
"""
CREATE VIRTUAL TABLE $tableName
USING fts$ftsVersion($eventHeaderRowIdName, $contentName)
""",
)
// Foreign key cleanup for full text search
db.execSQL(
"""
CREATE TRIGGER fts_foreign_key
AFTER DELETE ON event_headers
FOR EACH ROW
BEGIN
DELETE FROM $tableName
WHERE old.row_id = $tableName.$eventHeaderRowIdName;
END;
""",
)
}
override fun drop(db: SQLiteDatabase) {
db.execSQL("DROP TABLE IF EXISTS $tableName")
}
val insertFTS =
"""
INSERT OR ROLLBACK INTO $tableName ($eventHeaderRowIdName, $contentName)
VALUES (?, ?)
""".trimIndent()
fun insert(
event: Event,
headerId: Long,
db: SQLiteDatabase,
) {
if (event is SearchableEvent) {
val stmt = db.compileStatement(insertFTS)
stmt.bindLong(1, headerId)
stmt.bindString(2, event.indexableContent())
stmt.executeInsert()
}
}
fun versionFinder(db: SQLiteDatabase): Int =
try {
try {
db.execSQL("CREATE VIRTUAL TABLE dummy_fts5 USING fts5(dummy)")
5
} catch (e: SQLiteException) {
db.execSQL("CREATE VIRTUAL TABLE dummy_fts4 USING fts4(dummy)")
4
}
} catch (e: SQLiteException) {
db.execSQL("CREATE VIRTUAL TABLE dummy_fts3 USING fts3(dummy)")
3
}
override fun deleteAll(db: SQLiteDatabase) {
db.execSQL("DELETE FROM event_fts")
}
}
@@ -1,31 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
interface IModule {
fun create(db: SQLiteDatabase)
fun drop(db: SQLiteDatabase)
fun deleteAll(db: SQLiteDatabase)
}
@@ -1,103 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import com.vitorpamplona.quartz.nip01Core.core.Tag
interface IndexingStrategy {
/**
* Activate this if you see too many Filters with just LIMIT, SINCE and
* UNTIL filled up.
*
* Clients never support all kinds, so this is usually
* only done with syncing services that must download ALL kinds from
* ALL authors.
*
* The index will make these queries significantly faster, but maybe speed
* is not a requirement on Sync services. The size of this index is
* considerable.
*
* Keep in mind that activating too many indexes increases the size of the
* DB so much that the indexes themselves won't fit in memory, requiring
* frequent reloadings of the index itself from disk.
*/
val indexEventsByCreatedAtAlone: Boolean
/**
* Activate this if you see too many Tag-centric Filters without
* kind, pubkey or id.
*
* Clients never support all kinds, so this is usually
* only done in rare usecases where the client supports all
* kinds.
*
* The index will make these queries significantly faster, but maybe speed
* is not a requirement on such services. Because this is an index in
* event tags, it becomes QUITE BIG.
*
* Keep in mind that activating too many indexes increases the size of the
* DB so much that the indexes themselves won't fit in memory, requiring
* frequent reloadings of the index itself from disk.
*/
val indexTagsByCreatedAtAlone: Boolean
/**
* Activate this if you see too many Tag-centric Filters without
* kind AND pubkey at the same time.
*
* This is a rarely used index (reports by your follows or
* NIP-04 DMs for instance) that becomes quite large without
* major gains.
*
* Keep in mind that activating too many indexes increases the size of the
* DB so much that the indexes themselves won't fit in memory, requiring
* frequent reloadings of the index itself from disk.
*/
val indexTagsWithKindAndPubkey: Boolean
/**
* Activate this to make sure queries are always in order when
* the same created_at exists. This will impact performance and
* the size of indexes, but it provides results that are compliant
* with the Nostr Spec
*/
val useAndIndexIdOnOrderBy: Boolean
fun shouldIndex(
kind: Int,
tag: Tag,
): Boolean
}
/**
* By default, we index all tags that have a single letter name and some value
*/
class DefaultIndexingStrategy(
override val indexEventsByCreatedAtAlone: Boolean = false,
override val indexTagsByCreatedAtAlone: Boolean = false,
override val indexTagsWithKindAndPubkey: Boolean = false,
override val useAndIndexIdOnOrderBy: Boolean = false,
) : IndexingStrategy {
override fun shouldIndex(
kind: Int,
tag: Tag,
) = tag.size >= 2 && tag[0].length == 1
}
@@ -1,711 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.Cursor
import android.database.sqlite.SQLiteDatabase
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip01Core.core.HexKey
import com.vitorpamplona.quartz.nip01Core.core.Kind
import com.vitorpamplona.quartz.nip01Core.core.OptimizedJsonMapper
import com.vitorpamplona.quartz.nip01Core.core.isAddressable
import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
import com.vitorpamplona.quartz.nip01Core.store.sqlite.sql.where
import com.vitorpamplona.quartz.utils.EventFactory
class QueryBuilder(
val fts: FullTextSearchModule,
val hasher: (db: SQLiteDatabase) -> TagNameValueHasher,
val indexStrategy: IndexingStrategy,
) {
// ------------
// Main methods
// ------------
fun <T : Event> query(
filter: Filter,
db: SQLiteDatabase,
): List<T> = db.runQuery(toSql(filter, hasher(db)))
fun <T : Event> query(
filter: Filter,
db: SQLiteDatabase,
onEach: (T) -> Unit,
) = db.runQuery(toSql(filter, hasher(db)), onEach)
fun <T : Event> query(
filters: List<Filter>,
db: SQLiteDatabase,
): List<T> = db.runQuery(toSql(filters, hasher(db)))
fun <T : Event> query(
filters: List<Filter>,
db: SQLiteDatabase,
onEach: (T) -> Unit,
) = db.runQuery(toSql(filters, hasher(db)), onEach)
// ---------------------------
// Raw methods for performance
// ---------------------------
fun rawQuery(
filter: Filter,
db: SQLiteDatabase,
): List<RawEvent> = db.runRawQuery(toSql(filter, hasher(db)))
fun rawQuery(
filter: Filter,
db: SQLiteDatabase,
onEach: (RawEvent) -> Unit,
) = db.runRawQuery(toSql(filter, hasher(db)), onEach)
fun rawQuery(
filters: List<Filter>,
db: SQLiteDatabase,
): List<RawEvent> = db.runRawQuery(toSql(filters, hasher(db)))
fun rawQuery(
filters: List<Filter>,
db: SQLiteDatabase,
onEach: (RawEvent) -> Unit,
) = db.runRawQuery(toSql(filters, hasher(db)), onEach)
// -----------
// Debug Tools
// -----------
fun planQuery(
filter: Filter,
hasher: TagNameValueHasher,
db: SQLiteDatabase,
): String {
val query = toSql(filter, hasher)
return db.explainQuery(query.sql, query.args.toTypedArray())
}
fun planQuery(
filters: List<Filter>,
hasher: TagNameValueHasher,
db: SQLiteDatabase,
): String {
val query = toSql(filters, hasher)
return db.explainQuery(query.sql, query.args.toTypedArray())
}
fun toSql(
filter: Filter,
hasher: TagNameValueHasher,
): QuerySpec {
val newFilter = filter.toFilterWithDTags()
if (newFilter.isSimpleQuery()) {
return makeSimpleQuery(
project = true,
ids = newFilter.ids,
authors = newFilter.authors,
kinds = newFilter.kinds,
dTags = newFilter.dTags,
since = newFilter.since,
until = newFilter.until,
limit = newFilter.limit,
)
}
if (newFilter.isSimpleSearch()) {
return makeSimpleSearch(
search = newFilter.search!!,
ids = newFilter.ids,
authors = newFilter.authors,
kinds = newFilter.kinds,
dTags = newFilter.dTags,
since = newFilter.since,
until = newFilter.until,
limit = newFilter.limit,
)
}
val rowIdSubqueries = prepareRowIDSubQueries(filter, hasher)
return if (rowIdSubqueries == null) {
QuerySpec(makeEverythingQuery())
} else {
QuerySpec(
makeQueryIn(rowIdSubqueries.sql),
rowIdSubqueries.args,
)
}
}
fun toSql(
filters: List<Filter>,
hasher: TagNameValueHasher,
): QuerySpec {
if (filters.size == 1) return toSql(filters.first(), hasher)
val rowIdSubqueries = unionSubqueriesIfNeeded(filters, hasher)
return if (rowIdSubqueries == null) {
QuerySpec(
makeEverythingQuery(),
emptyList(),
)
} else {
QuerySpec(
makeQueryIn(rowIdSubqueries.sql),
rowIdSubqueries.args,
)
}
}
private fun makeEverythingQuery() = "SELECT id, pubkey, created_at, kind, tags, content, sig FROM event_headers ORDER BY created_at DESC${if (indexStrategy.useAndIndexIdOnOrderBy) ", id ASC" else ""}"
private fun makeQueryIn(rowIdQuery: String) =
"""
SELECT id, pubkey, created_at, kind, tags, content, sig FROM event_headers
INNER JOIN (
$rowIdQuery
) AS filtered
ON event_headers.row_id = filtered.row_id
ORDER BY created_at DESC${if (indexStrategy.useAndIndexIdOnOrderBy) ", id ASC" else ""}
""".trimIndent()
private fun <T : Event> SQLiteDatabase.runQuery(query: QuerySpec): List<T> =
rawQuery(query.sql, query.args.toTypedArray()).use { cursor ->
ArrayList<T>(cursor.count).apply {
while (cursor.moveToNext()) {
add(cursor.toEvent())
}
}
}
private fun SQLiteDatabase.runRawQuery(query: QuerySpec): List<RawEvent> =
rawQuery(query.sql, query.args.toTypedArray()).use { cursor ->
ArrayList<RawEvent>(cursor.count).apply {
while (cursor.moveToNext()) {
add(cursor.toRawEvent())
}
}
}
private inline fun <T : Event> SQLiteDatabase.runQuery(
query: QuerySpec,
onEach: (T) -> Unit,
) = rawQuery(query.sql, query.args.toTypedArray()).use { cursor ->
while (cursor.moveToNext()) {
onEach(cursor.toEvent())
}
}
private inline fun SQLiteDatabase.runRawQuery(
query: QuerySpec,
onEach: (RawEvent) -> Unit,
) = rawQuery(query.sql, query.args.toTypedArray()).use { cursor ->
while (cursor.moveToNext()) {
onEach(cursor.toRawEvent())
}
}
private fun <T : Event> Cursor.toEvent() =
EventFactory.create<T>(
getString(0).intern(),
getString(1).intern(),
getLong(2),
getInt(3),
OptimizedJsonMapper.fromJsonToTagArray(getString(4)),
getString(5),
getString(6),
)
private fun Cursor.toRawEvent() =
RawEvent(
getString(0),
getString(1),
getLong(2),
getInt(3),
getString(4),
getString(5),
getString(6),
)
// --------------
// Counts
// -------------
fun count(
filter: Filter,
db: SQLiteDatabase,
): Int {
val newFilter = filter.toFilterWithDTags()
if (newFilter.isSimpleQuery()) {
val sql =
makeSimpleQuery(
project = false,
ids = newFilter.ids,
authors = newFilter.authors,
kinds = newFilter.kinds,
dTags = newFilter.dTags,
since = newFilter.since,
until = newFilter.until,
limit = newFilter.limit,
)
return db.countIn(sql.sql, sql.args)
}
val rowIdSubQuery = prepareRowIDSubQueries(filter, hasher(db))
return if (rowIdSubQuery == null) {
db.countEverything()
} else {
db.countIn(rowIdSubQuery.sql, rowIdSubQuery.args)
}
}
fun count(
filters: List<Filter>,
db: SQLiteDatabase,
): Int {
val rowIdSubqueries = unionSubqueriesIfNeeded(filters, hasher(db)) ?: return db.countEverything()
return db.countIn(rowIdSubqueries.sql, rowIdSubqueries.args)
}
private fun SQLiteDatabase.countEverything() = runCount("SELECT count(*) as count FROM event_headers")
private fun SQLiteDatabase.countIn(
rowIdQuery: String,
args: List<String>,
) = runCount("SELECT COUNT(*) as count FROM ($rowIdQuery)", args)
private fun SQLiteDatabase.runCount(
sql: String,
args: List<String> = emptyList(),
): Int =
rawQuery(sql, args.toTypedArray()).use { cursor ->
cursor.moveToNext()
cursor.getInt(0)
}
// --------------
// Deletes
// -------------
fun delete(
filter: Filter,
db: SQLiteDatabase,
): Int {
val rowIdQuery = prepareRowIDSubQueries(filter, hasher(db))
return if (rowIdQuery == null) {
0
} else {
db.runDelete(rowIdQuery.sql, rowIdQuery.args)
}
}
fun delete(
filters: List<Filter>,
db: SQLiteDatabase,
): Int {
val rowIdSubqueries = unionSubqueriesIfNeeded(filters, hasher(db)) ?: return 0
return db.runDelete(rowIdSubqueries.sql, rowIdSubqueries.args)
}
private fun SQLiteDatabase.runDelete(
sql: String,
args: List<String> = emptyList(),
): Int = delete("event_headers", "row_id IN ($sql)", args.toTypedArray())
// ---------------------------------
// Prepare unions of all the filters
// ---------------------------------
fun unionSubqueriesIfNeeded(
filters: List<Filter>,
hasher: TagNameValueHasher,
): QuerySpec? {
val inner =
filters.mapNotNull { filter ->
prepareRowIDSubQueries(filter, hasher)
}
if (inner.isEmpty()) return null
return if (inner.size == 1) {
inner.first()
} else {
QuerySpec(
sql = inner.joinToString("\n UNION\n ") { "SELECT row_id FROM (${it.sql})" },
args = inner.flatMap { it.args },
)
}
}
sealed class TagNameForQuery {
class InTags(
val tagName: String,
) : TagNameForQuery()
class AllTags(
val tagName: String,
val tagValueIndex: Int,
) : TagNameForQuery()
}
// ----------------------------
// Inner row id selections
// ----------------------------
fun prepareRowIDSubQueries(
filter: Filter,
hasher: TagNameValueHasher,
): QuerySpec? {
if (filter.isEmpty()) return null
val mustJoinSearch = (filter.search != null)
val nonDTagsIn = filter.tags?.filter { it.key != "d" } ?: emptyMap()
val nonDTagsAll = filter.tagsAll?.filter { it.key != "d" } ?: emptyMap()
val reverseLookup = nonDTagsIn.isNotEmpty() || nonDTagsAll.isNotEmpty()
val needHeaders =
with(filter) {
(ids != null) || (tags != null && tags.containsKey("d"))
}
val hasHeaders =
with(filter) {
(ids != null) ||
(authors != null && authors.isNotEmpty()) ||
(kinds != null && kinds.isNotEmpty()) ||
(tags != null && tags.containsKey("d")) ||
(since != null) ||
(until != null) ||
(limit != null)
}
var defaultTagKey: TagNameForQuery? = null
val projection =
buildString {
// always do tags if there are any
if (reverseLookup) {
append("SELECT DISTINCT(event_tags.event_header_row_id) as row_id FROM event_tags")
// it's quite rare to have 2 tags in the filter, but possible
nonDTagsIn.keys.forEachIndexed { index, tagName ->
if (defaultTagKey != null) {
append(" INNER JOIN event_tags as event_tagsIn$index ON event_tagsIn$index.event_header_row_id = event_tags.event_header_row_id AND event_tagsIn$index.created_at = event_tags.created_at")
} else {
defaultTagKey = TagNameForQuery.InTags(tagName)
}
}
nonDTagsAll.keys.forEachIndexed { index, tagName ->
nonDTagsAll[tagName]!!.forEachIndexed { valueIndex, tagValue ->
if (defaultTagKey != null) {
append(" INNER JOIN event_tags as event_tagsAll${index}_$valueIndex ON event_tagsAll${index}_$valueIndex.event_header_row_id = event_tags.event_header_row_id AND event_tagsAll${index}_$valueIndex.created_at = event_tags.created_at")
} else {
defaultTagKey = TagNameForQuery.AllTags(tagName, valueIndex)
}
}
}
if (needHeaders) {
append(" INNER JOIN event_headers ON event_headers.row_id = event_tags.event_header_row_id")
}
if (mustJoinSearch) {
append(" INNER JOIN ${fts.tableName} ON ${fts.tableName}.${fts.eventHeaderRowIdName} = event_tags.event_header_row_id")
}
} else if (mustJoinSearch) {
append("SELECT ${fts.tableName}.${fts.eventHeaderRowIdName} as row_id FROM ${fts.tableName}")
if (hasHeaders) {
append(" INNER JOIN event_headers ON event_headers.row_id = ${fts.tableName}.${fts.eventHeaderRowIdName}")
}
} else {
// no tags and no search.
append("SELECT event_headers.row_id as row_id FROM event_headers")
}
}
val clause =
where {
// the order should match indexes
// ids reduce the filter the most
filter.ids?.let { equalsOrIn("event_headers.id", it) }
// it's quite rare to have 2 tags in the filter, but possible
nonDTagsIn.keys.forEachIndexed { index, tagName ->
val column =
if (defaultTagKey == null || (defaultTagKey is TagNameForQuery.InTags && defaultTagKey.tagName == tagName)) {
"event_tags.tag_hash"
} else {
"event_tagsIn$index.tag_hash"
}
equalsOrIn(
column,
nonDTagsIn[tagName]!!.map {
hasher.hash(tagName, it)
},
)
}
// there are indexes for these, starting with tags.
nonDTagsAll.keys.forEachIndexed { index, tagName ->
nonDTagsAll[tagName]!!.forEachIndexed { valueIndex, tagValue ->
val column =
if (defaultTagKey == null || (defaultTagKey is TagNameForQuery.AllTags && defaultTagKey.tagName == tagName && defaultTagKey.tagValueIndex == valueIndex)) {
"event_tags.tag_hash"
} else {
"event_tagsAll${index}_$valueIndex.tag_hash"
}
equals(column, hasher.hash(tagName, tagValue))
}
}
// range search is bad but most of the time these are up the top with few elements.
if (reverseLookup) {
filter.kinds?.let { equalsOrIn("event_tags.kind", it) }
filter.authors?.let { equalsOrIn("event_tags.pubkey_hash", it.map { hasher.hash(it) }) }
filter.since?.let { greaterThanOrEquals("event_tags.created_at", it) }
filter.until?.let { lessThanOrEquals("event_tags.created_at", it) }
// there are indexes for these, starting with tags.
filter.tags?.forEach { (tagName, tagValues) ->
if (tagName == "d") {
equalsOrIn("event_headers.d_tag", tagValues)
}
}
} else {
filter.kinds?.let { equalsOrIn("event_headers.kind", it) }
filter.authors?.let { equalsOrIn("event_headers.pubkey", it) }
// there are indexes for these, starting with tags.
filter.tags?.forEach { (tagName, tagValues) ->
if (tagName == "d") {
equalsOrIn("event_headers.d_tag", tagValues)
}
}
filter.since?.let { greaterThanOrEquals("event_headers.created_at", it) }
filter.until?.let { lessThanOrEquals("event_headers.created_at", it) }
// no need to add the replaceable because query_by_kind_pubkey_created already covers it
val isAllAddressable = filter.kinds?.all { it.isAddressable() } ?: false
if (isAllAddressable) {
// matches unique index kind >= 30000 AND kind < 40000
raw("(event_headers.kind >= 30000 AND event_headers.kind < 40000)")
}
}
// if search is included, SQLLite will always start here.
filter.search?.let {
if (it.isNotBlank()) {
match(fts.tableName, it)
}
}
}
val sql =
buildString {
append(projection)
if (clause.conditions.isNotEmpty()) {
append(" WHERE ${clause.conditions}")
}
if (filter.limit != null) {
if (reverseLookup) {
append(" ORDER BY event_tags.created_at DESC")
append(" LIMIT ")
append(filter.limit)
} else {
append(" ORDER BY event_headers.created_at DESC")
append(" LIMIT ")
append(filter.limit)
}
}
}
return QuerySpec(sql, clause.args)
}
private fun makeSimpleSearch(
search: String,
ids: List<HexKey>? = null,
authors: List<HexKey>? = null,
kinds: List<Kind>? = null,
dTags: List<String>? = null,
since: Long? = null,
until: Long? = null,
limit: Int? = null,
): QuerySpec {
val clause =
where {
// the order should match indexes
// ids reduce the filter the most
ids?.let { equalsOrIn("event_headers.id", it) }
match(fts.tableName, search)
kinds?.let { equalsOrIn("event_headers.kind", it) }
authors?.let { equalsOrIn("event_headers.pubkey", it) }
// there are indexes for these, starting with tags.
dTags?.let { equalsOrIn("event_headers.d_tag", it) }
since?.let { greaterThanOrEquals("event_headers.created_at", it) }
until?.let { lessThanOrEquals("event_headers.created_at", it) }
// if this is a dTag filter, it is likely that all kinds are addressables
// and so force the use of the addressable index
if (dTags != null && kinds != null) {
if (kinds.all { it.isAddressable() }) {
// matches unique index kind >= 30000 AND kind < 40000
raw("(event_headers.kind >= 30000 AND kind < 40000)")
}
}
}
val sql =
buildString {
append("SELECT event_headers.id, event_headers.pubkey, event_headers.created_at, event_headers.kind, event_headers.tags, event_headers.content, event_headers.sig FROM event_headers")
append("\nINNER JOIN ${fts.tableName} ON event_headers.row_id = ${fts.tableName}.${fts.eventHeaderRowIdName}")
if (clause.conditions.isNotEmpty()) {
append("\nWHERE ${clause.conditions}")
}
append("\nORDER BY event_headers.created_at DESC")
if (indexStrategy.useAndIndexIdOnOrderBy) {
append(", event_headers.id ASC")
}
if (limit != null) {
append("\nLIMIT ")
append(limit)
}
}
return QuerySpec(sql, clause.args)
}
private fun makeSimpleQuery(
project: Boolean,
ids: List<HexKey>? = null,
authors: List<HexKey>? = null,
kinds: List<Kind>? = null,
dTags: List<String>? = null,
since: Long? = null,
until: Long? = null,
limit: Int? = null,
): QuerySpec {
val clause =
where {
// the order should match indexes
// ids reduce the filter the most
ids?.let { equalsOrIn("id", it) }
kinds?.let { equalsOrIn("kind", it) }
authors?.let { equalsOrIn("pubkey", it) }
// there are indexes for these, starting with tags.
dTags?.let { equalsOrIn("d_tag", it) }
since?.let { greaterThanOrEquals("created_at", it) }
until?.let { lessThanOrEquals("created_at", it) }
// if this is a dTag filter, it is likely that all kinds are addressables
// and so force the use of the addressable index
if (dTags != null && kinds != null) {
if (kinds.all { it.isAddressable() }) {
// matches unique index kind >= 30000 AND kind < 40000
raw("(kind >= 30000 AND kind < 40000)")
}
}
}
val sql =
buildString {
if (project) {
append("SELECT id, pubkey, created_at, kind, tags, content, sig FROM event_headers")
} else {
append("SELECT row_id FROM event_headers")
}
if (clause.conditions.isNotEmpty()) {
append("\nWHERE ")
append(clause.conditions)
}
if (project) {
append("\nORDER BY created_at DESC")
if (indexStrategy.useAndIndexIdOnOrderBy) {
append(", id ASC")
}
}
if (limit != null) {
append("\nLIMIT ")
append(limit)
}
}
return QuerySpec(sql, clause.args)
}
class FilterWithDTags(
val ids: List<HexKey>? = null,
val authors: List<HexKey>? = null,
val kinds: List<Kind>? = null,
val dTags: List<String>? = null,
val nonDTagsIn: Map<String, List<String>>? = null,
val nonDTagsAll: Map<String, List<String>>? = null,
val since: Long? = null,
val until: Long? = null,
val limit: Int? = null,
val search: String? = null,
) {
fun isSimpleSearch() =
search != null &&
search.isNotEmpty() &&
(nonDTagsIn == null || nonDTagsIn.isEmpty()) &&
(nonDTagsAll == null || nonDTagsAll.isEmpty())
// can be resolved with just event_headers
fun isSimpleQuery() =
(nonDTagsIn == null || nonDTagsIn.isEmpty()) &&
(nonDTagsAll == null || nonDTagsAll.isEmpty()) &&
(search == null || search.isEmpty())
}
fun Filter.toFilterWithDTags(): FilterWithDTags =
FilterWithDTags(
ids = ids,
authors = authors,
kinds = kinds,
dTags = tags?.get("d") ?: tagsAll?.get("d"),
nonDTagsIn = tags?.filter { it.key != "d" }?.ifEmpty { null },
nonDTagsAll = tagsAll?.filter { it.key != "d" }?.ifEmpty { null },
since = since,
until = until,
limit = limit,
search = search,
)
data class QuerySpec(
val sql: String,
val args: List<String> = emptyList(),
)
}
@@ -1,94 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
fun SQLiteEventStore.explainQuery(
sql: String,
args: Array<Any> = emptyArray(),
) = readableDatabase.explainQuery(sql, args.map { it.toString() }.toTypedArray())
fun SQLiteDatabase.explainQuery(
sql: String,
args: Array<String> = emptyArray(),
): String =
rawQuery("EXPLAIN QUERY PLAN $sql", args).use { cursor ->
val treeIndex = mutableMapOf<Int, PlanNode>()
val rootNodes = mutableListOf<PlanNode>()
while (cursor.moveToNext()) {
val id = cursor.getInt(0)
val parentId = cursor.getInt(1)
val detail = cursor.getString(3)
val line = PlanNode(detail)
treeIndex[id] = line
val parent = treeIndex[parentId]
if (parent != null) {
parent.children.add(line)
} else {
rootNodes.add(line)
}
}
buildString {
appendLine(populateArgs(sql, args))
for (idx in rootNodes.indices) {
printNode(rootNodes[idx], "", idx == rootNodes.size - 1, idx > 0)
}
}
}
private fun populateArgs(
sql: String,
args: Array<String> = emptyArray(),
): String {
var result = sql
args.forEach {
result = result.replaceFirst("?", "\"$it\"")
}
return result
}
fun StringBuilder.printNode(
node: PlanNode,
prefix: String,
isLast: Boolean,
newLine: Boolean,
) {
if (newLine) append('\n')
append(prefix)
append(if (isLast) "└── " else "├── ")
append(node.detail)
val newPrefix = prefix + if (isLast) " " else ""
for (i in node.children.indices) {
printNode(node.children[i], newPrefix, i == node.children.size - 1, true)
}
}
data class PlanNode(
val detail: String,
val children: MutableList<PlanNode> = mutableListOf(),
)
@@ -1,60 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
class ReplaceableModule : IModule {
override fun create(db: SQLiteDatabase) {
db.execSQL(
"""
CREATE UNIQUE INDEX replaceable_idx
ON event_headers (kind, pubkey)
WHERE (kind IN (0, 3)) OR (kind >= 10000 AND kind < 20000)
""".trimIndent(),
)
// deletes older addressables when inserting new ones
// if a newer addressable is inserted the unique index
// above will be triggered. Delete cascade will take
// care of the event_tags table
db.execSQL(
"""
CREATE TRIGGER delete_older_replaceable_event
BEFORE INSERT ON event_headers
FOR EACH ROW
WHEN (NEW.kind IN (0, 3)) OR (NEW.kind >= 10000 AND NEW.kind < 20000)
BEGIN
-- Delete older records if this is the newest
DELETE FROM event_headers
WHERE
event_headers.kind = NEW.kind AND
event_headers.pubkey = NEW.pubkey AND
event_headers.created_at < NEW.created_at;
END;
""".trimIndent(),
)
}
override fun drop(db: SQLiteDatabase) {}
override fun deleteAll(db: SQLiteDatabase) {}
}
@@ -1,119 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip62RequestToVanish.RequestToVanishEvent
class RightToVanishModule(
val hasher: (db: SQLiteDatabase) -> TagNameValueHasher,
) : IModule {
override fun create(db: SQLiteDatabase) {
db.execSQL(
"""
CREATE TABLE event_vanish (
event_header_row_id INTEGER PRIMARY KEY NOT NULL,
pubkey_hash INTEGER NOT NULL,
created_at INTEGER NOT NULL,
FOREIGN KEY (event_header_row_id) REFERENCES event_headers(row_id) ON DELETE CASCADE
)
""".trimIndent(),
)
db.execSQL("CREATE UNIQUE INDEX event_vanish_key ON event_vanish (pubkey_hash)")
db.execSQL(
"""
CREATE TRIGGER delete_older_event_vanish
BEFORE INSERT ON event_vanish
FOR EACH ROW
BEGIN
-- Delete older records if this is the newest
DELETE FROM event_vanish
WHERE
event_vanish.pubkey_hash = NEW.pubkey_hash AND
event_vanish.created_at < NEW.created_at;
END;
""".trimIndent(),
)
db.execSQL(
"""
CREATE TRIGGER delete_events_on_event_vanish
AFTER INSERT ON event_vanish
FOR EACH ROW
BEGIN
DELETE FROM event_headers
WHERE event_headers.created_at < NEW.created_at AND
event_headers.pubkey_owner_hash = NEW.pubkey_hash;
END;
""".trimIndent(),
)
// reject new events inside a right to vanish request
db.execSQL(
"""
CREATE TRIGGER reject_events_on_event_vanish
BEFORE INSERT ON event_headers
FOR EACH ROW
BEGIN
SELECT RAISE(ABORT, 'blocked: a request to vanish event exists')
WHERE EXISTS (
SELECT 1 FROM event_vanish
WHERE
event_vanish.pubkey_hash = NEW.pubkey_owner_hash AND
event_vanish.created_at >= NEW.created_at
);
END;
""".trimIndent(),
)
}
override fun drop(db: SQLiteDatabase) {
db.execSQL("DROP TABLE IF EXISTS event_vanish")
}
val insertRTV =
"""
INSERT OR ROLLBACK INTO event_vanish (event_header_row_id, pubkey_hash, created_at)
VALUES (?, ?, ?)
""".trimIndent()
fun insert(
event: Event,
relayUrl: String?,
headerId: Long,
db: SQLiteDatabase,
) {
if (event is RequestToVanishEvent && event.shouldVanishFrom(relayUrl)) {
val stmt = db.compileStatement(insertRTV)
stmt.bindLong(1, headerId)
stmt.bindLong(2, hasher(db).hash(event.pubKey))
stmt.bindLong(3, event.createdAt)
stmt.executeInsert()
}
}
override fun deleteAll(db: SQLiteDatabase) {
db.execSQL("DELETE FROM event_vanish")
}
}
@@ -1,257 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.content.Context
import android.database.sqlite.SQLiteConstraintException
import android.database.sqlite.SQLiteDatabase
import android.database.sqlite.SQLiteOpenHelper
import androidx.core.database.sqlite.transaction
import com.vitorpamplona.quartz.nip01Core.core.Event
import com.vitorpamplona.quartz.nip01Core.core.HexKey
import com.vitorpamplona.quartz.nip01Core.core.Kind
import com.vitorpamplona.quartz.nip01Core.core.OptimizedJsonMapper
import com.vitorpamplona.quartz.nip01Core.core.isEphemeral
import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
import com.vitorpamplona.quartz.nip01Core.store.IEventStore
import com.vitorpamplona.quartz.nip40Expiration.isExpired
import com.vitorpamplona.quartz.utils.EventFactory
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
class SQLiteEventStore(
val context: Context,
val dbName: String? = "events.db",
val relayUrl: String? = null,
val indexStrategy: IndexingStrategy = DefaultIndexingStrategy(),
) : SQLiteOpenHelper(context, dbName, null, DATABASE_VERSION) {
companion object {
const val DATABASE_VERSION = 2
}
val seedModule = SeedModule()
val fullTextSearchModule = FullTextSearchModule()
val eventIndexModule = EventIndexesModule(seedModule::hasher, indexStrategy)
val replaceableModule = ReplaceableModule()
val addressableModule = AddressableModule()
val ephemeralModule = EphemeralModule()
val deletionModule = DeletionRequestModule(seedModule::hasher)
val expirationModule = ExpirationModule()
val rightToVanishModule = RightToVanishModule(seedModule::hasher)
val queryBuilder = QueryBuilder(fullTextSearchModule, seedModule::hasher, indexStrategy)
val modules =
listOf(
seedModule,
eventIndexModule,
replaceableModule,
addressableModule,
ephemeralModule,
deletionModule,
expirationModule,
rightToVanishModule,
fullTextSearchModule,
)
override fun onConfigure(db: SQLiteDatabase) {
super.onConfigure(db)
// 32MB memory cache
db.execSQL("PRAGMA cache_size=-32000;")
// makes sure the FKs are sane
db.setForeignKeyConstraintsEnabled(true)
// SQLite implements mutations by appending them to a log, which it occasionally
// compacts into the database. This is called Write-Ahead Logging (WAL)
db.enableWriteAheadLogging()
// The DB can be corrupted if the OS is shutdown before sync, which generally
// doesn't happen on Android
db.execSQL("PRAGMA synchronous = OFF;")
}
fun dbSizeMB(): Int {
val f1 = context.getDatabasePath(dbName)
val f2 = context.getDatabasePath("$dbName-wal")
val total = f1.length() + f2.length()
return (total / (1024 * 1024)).toInt()
}
override fun onCreate(db: SQLiteDatabase) {
modules.forEach {
it.create(db)
}
}
override fun onUpgrade(
db: SQLiteDatabase,
oldVersion: Int,
newVersion: Int,
) {
// Handle all intermediate versions
for (version in oldVersion..<newVersion) {
when (version) {
1 -> {
// Upgrade from version 1 to 2
// We changed event_tags to use a probabilistic hash as tag
modules.reversed().forEach { it.drop(db) }
modules.forEach { it.create(db) }
}
}
}
}
fun clearDB() {
val db = writableDatabase
modules.reversed().forEach { it.deleteAll(db) }
}
suspend fun vacuum() {
// 1. ANALYZE: Collects statistics about tables and indices
// to help the query planner optimize queries.
withContext(Dispatchers.IO) {
writableDatabase.execSQL("VACUUM")
}
}
suspend fun analyse() {
// 2. VACUUM: Rebuilds the database file, reclaiming unused space
// and reducing fragmentation.
withContext(Dispatchers.IO) {
writableDatabase.execSQL("ANALYZE")
}
}
private fun innerInsertEvent(
event: Event,
db: SQLiteDatabase,
) {
val headerId = eventIndexModule.insert(event, db)
deletionModule.insert(event, db)
expirationModule.insert(event, headerId, db)
fullTextSearchModule.insert(event, headerId, db)
rightToVanishModule.insert(event, relayUrl, headerId, db)
}
fun insertEvent(event: Event): Boolean {
if (event.isExpired()) throw SQLiteConstraintException("blocked: Cannot insert an expired event")
if (event.kind.isEphemeral()) return false
writableDatabase.transaction {
innerInsertEvent(event, this)
}
return true
}
inner class Transaction(
val db: SQLiteDatabase,
) : IEventStore.ITransaction {
override fun insert(event: Event): Boolean {
if (event.isExpired()) throw SQLiteConstraintException("blocked: Cannot insert an expired event")
if (event.kind.isEphemeral()) return false
innerInsertEvent(event, db)
return true
}
}
fun transaction(body: Transaction.() -> Unit) {
writableDatabase.transaction {
with(Transaction(this)) {
body()
}
}
}
fun <T : Event> query(filter: Filter): List<T> = queryBuilder.query(filter, readableDatabase)
fun <T : Event> query(filters: List<Filter>): List<T> = queryBuilder.query(filters, readableDatabase)
fun <T : Event> query(
filter: Filter,
onEach: (T) -> Unit,
) = queryBuilder.query(filter, readableDatabase, onEach)
fun <T : Event> query(
filters: List<Filter>,
onEach: (T) -> Unit,
) = queryBuilder.query(filters, readableDatabase, onEach)
fun rawQuery(filter: Filter): List<RawEvent> = queryBuilder.rawQuery(filter, readableDatabase)
fun rawQuery(filters: List<Filter>): List<RawEvent> = queryBuilder.rawQuery(filters, readableDatabase)
fun rawQuery(
filter: Filter,
onEach: (RawEvent) -> Unit,
) = queryBuilder.rawQuery(filter, readableDatabase, onEach)
fun rawQuery(
filters: List<Filter>,
onEach: (RawEvent) -> Unit,
) = queryBuilder.rawQuery(filters, readableDatabase, onEach)
fun planQuery(filter: Filter) = queryBuilder.planQuery(filter, seedModule.hasher(readableDatabase), readableDatabase)
fun planQuery(filters: List<Filter>) = queryBuilder.planQuery(filters, seedModule.hasher(readableDatabase), readableDatabase)
fun count(filter: Filter): Int = queryBuilder.count(filter, readableDatabase)
fun count(filters: List<Filter>): Int = queryBuilder.count(filters, readableDatabase)
fun delete(filter: Filter) {
queryBuilder.delete(filter, writableDatabase)
}
fun delete(filters: List<Filter>) {
queryBuilder.delete(filters, writableDatabase)
}
fun delete(id: HexKey): Int = writableDatabase.delete("event_headers", "id = ?", arrayOf(id))
fun deleteExpiredEvents() = expirationModule.deleteExpiredEvents(writableDatabase)
}
class RawEvent(
val id: HexKey,
val pubKey: HexKey,
val createdAt: Long,
val kind: Kind,
val jsonTags: String,
val content: String,
val sig: HexKey,
) {
fun <T : Event> toEvent() =
EventFactory.create<T>(
id.intern(),
pubKey.intern(),
createdAt,
kind,
OptimizedJsonMapper.fromJsonToTagArray(jsonTags),
content,
sig,
)
}
@@ -1,83 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import android.database.sqlite.SQLiteDatabase
import com.vitorpamplona.quartz.utils.RandomInstance
class SeedModule : IModule {
override fun create(db: SQLiteDatabase) {
db.execSQL("CREATE TABLE seeds (seed_value INTEGER)")
val insertSeed = "INSERT INTO seeds (seed_value) VALUES (?)"
val stmt = db.compileStatement(insertSeed)
stmt.bindLong(1, RandomInstance.long())
stmt.executeInsert()
// Prevent updates to maintain immutability
db.execSQL(
"""
CREATE TRIGGER block_insert_seeds
BEFORE INSERT ON seeds
BEGIN
SELECT RAISE(ABORT, 'Inserts are not allowed on this table');
END;
""".trimIndent(),
)
db.execSQL(
"""
CREATE TRIGGER block_update_seeds
BEFORE UPDATE ON seeds
BEGIN
SELECT RAISE(ABORT, 'Inserts are not allowed on this table');
END;
""".trimIndent(),
)
db.execSQL(
"""
CREATE TRIGGER block_delete_seeds
BEFORE DELETE ON seeds
BEGIN
SELECT RAISE(ABORT, 'Inserts are not allowed on this table');
END;
""".trimIndent(),
)
}
fun getSeed(db: SQLiteDatabase): Long =
db.rawQuery("SELECT seed_value FROM seeds LIMIT 1", null).use {
it.moveToFirst()
it.getLong(0)
}
override fun drop(db: SQLiteDatabase) {
db.execSQL("DROP TABLE IF EXISTS seeds")
}
override fun deleteAll(db: SQLiteDatabase) {}
private var hasherCache: TagNameValueHasher? = null
fun hasher(db: SQLiteDatabase): TagNameValueHasher = hasherCache ?: TagNameValueHasher(getSeed(db)).also { hasherCache = it }
}
@@ -1,67 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite
import com.vitorpamplona.quartz.nip01Core.core.HexKey
import com.vitorpamplona.quartz.nip01Core.hints.bloom.MurmurHash3
/**
* The seed is used to compute the hash of the Key, which
* becomes the seed for the hash of the value
*/
class TagNameValueHasher(
val seed: Long,
) {
val hasher = MurmurHash3()
// small performance improvements on inserting
val pTagHash by lazy {
hasher.hash128x64Half("p".encodeToByteArray(), seed)
}
val eTagHash by lazy {
hasher.hash128x64Half("e".encodeToByteArray(), seed)
}
val aTagHash by lazy {
hasher.hash128x64Half("a".encodeToByteArray(), seed)
}
fun hash(
key: ByteArray,
value: ByteArray,
) = hasher.hash128x64Half(value, hasher.hash128x64Half(key, seed))
/*
* We tried caching these values to avoid recomputation of the hash
* But caching on a LruCache<String, Long> is slower than recomputing
*/
fun hash(
key: String,
value: String,
) = hash(key.encodeToByteArray(), value.encodeToByteArray())
fun hashATag(value: String) = hasher.hash128x64Half(value.encodeToByteArray(), aTagHash)
fun hashETag(value: String) = hasher.hash128x64Half(value.encodeToByteArray(), eTagHash)
fun hashPTag(value: String) = hasher.hash128x64Half(value.encodeToByteArray(), pTagHash)
fun hash(value: HexKey) = hasher.hash128x64Half(value.encodeToByteArray(), seed)
}
@@ -1,90 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite.sql
sealed class Condition {
data class Raw(
val condition: String,
) : Condition()
data class Equals(
val column: String,
val value: Any?,
) : Condition()
data class NotEquals(
val column: String,
val value: Any?,
) : Condition()
data class GreaterThan(
val column: String,
val value: Any,
) : Condition()
data class GreaterThanOrEquals(
val column: String,
val value: Any,
) : Condition()
data class LessThan(
val column: String,
val value: Any,
) : Condition()
data class LessThanOrEquals(
val column: String,
val value: Any,
) : Condition()
data class Like(
val column: String,
val value: String,
) : Condition()
data class Match(
val table: String,
val value: String,
) : Condition()
data class IsNull(
val column: String,
) : Condition()
data class IsNotNull(
val column: String,
) : Condition()
data class In(
val column: String,
val values: List<Any>,
) : Condition()
data class And(
val conditions: List<Condition>,
) : Condition()
data class Or(
val conditions: List<Condition>,
) : Condition()
class Empty : Condition()
}
@@ -1,134 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite.sql
class SqlSelectionBuilder(
private val condition: Condition,
) {
private val selectionArgs = mutableListOf<String>()
fun build(): WhereClause {
selectionArgs.clear() // Clear previous args for a fresh build
val conditions = buildCondition(condition)
return WhereClause(conditions, selectionArgs)
}
/**
* Recursively builds the SQL string for a given condition.
* @param cond The [Condition] to build the SQL string for.
* @return The SQL string representation of the condition.
*/
private fun buildCondition(cond: Condition): String =
when (cond) {
is Condition.Empty -> {
""
}
is Condition.Raw -> {
cond.condition
}
is Condition.Equals -> {
if (cond.value == null) {
"${cond.column} IS NULL"
} else {
selectionArgs.add(cond.value.toString())
"${cond.column} = ?"
}
}
is Condition.NotEquals -> {
if (cond.value == null) {
"${cond.column} IS NULL"
} else {
selectionArgs.add(cond.value.toString())
"${cond.column} != ?"
}
}
is Condition.GreaterThan -> {
selectionArgs.add(cond.value.toString())
"${cond.column} > ?"
}
is Condition.GreaterThanOrEquals -> {
selectionArgs.add(cond.value.toString())
"${cond.column} >= ?"
}
is Condition.LessThan -> {
selectionArgs.add(cond.value.toString())
"${cond.column} < ?"
}
is Condition.LessThanOrEquals -> {
selectionArgs.add(cond.value.toString())
"${cond.column} <= ?"
}
is Condition.Like -> {
selectionArgs.add(cond.value)
"${cond.column} LIKE ?"
}
is Condition.Match -> {
selectionArgs.add(cond.value)
"${cond.table} MATCH ?"
}
is Condition.IsNull -> {
"${cond.column} IS NULL"
}
is Condition.IsNotNull -> {
"${cond.column} IS NOT NULL"
}
is Condition.In -> {
if (cond.values.isEmpty()) {
// Handle empty IN clause gracefully, perhaps by making it always false
// or throwing an error, depending on desired behavior.
// For now, let's make it an always false condition to avoid SQL errors.
"1 = 0" // Always false
} else {
val placeholders = cond.values.joinToString(", ") { "?" }
cond.values.forEach { selectionArgs.add(it.toString()) }
"${cond.column} IN ($placeholders)"
}
}
is Condition.And -> {
if (cond.conditions.isEmpty()) {
"1 = 1" // Always true for an empty AND
} else {
cond.conditions.joinToString(" AND ") { "(${buildCondition(it)})" }
}
}
is Condition.Or -> {
if (cond.conditions.isEmpty()) {
"1 = 0" // Always false for an empty OR
} else {
cond.conditions.joinToString(" OR ") { "(${buildCondition(it)})" }
}
}
}
}
@@ -1,129 +0,0 @@
/*
* Copyright (c) 2025 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.quartz.nip01Core.store.sqlite.sql
class WhereClauseBuilder {
private val conditions = mutableListOf<Condition>()
fun raw(condition: String) = apply { conditions.add(Condition.Raw(condition)) }
fun equals(
column: String,
value: Any?,
) = apply { conditions.add(Condition.Equals(column, value)) }
fun notEquals(
column: String,
value: Any?,
) = apply { conditions.add(Condition.NotEquals(column, value)) }
fun greaterThan(
column: String,
value: Any,
) = apply { conditions.add(Condition.GreaterThan(column, value)) }
fun greaterThanOrEquals(
column: String,
value: Any,
) = apply { conditions.add(Condition.GreaterThanOrEquals(column, value)) }
fun lessThan(
column: String,
value: Any,
) = apply { conditions.add(Condition.LessThan(column, value)) }
fun lessThanOrEquals(
column: String,
value: Any,
) = apply { conditions.add(Condition.LessThanOrEquals(column, value)) }
fun like(
column: String,
pattern: String,
) = apply { conditions.add(Condition.Like(column, pattern)) }
fun match(
table: String,
pattern: String,
) = apply { conditions.add(Condition.Match(table, pattern)) }
fun isNull(column: String) = apply { conditions.add(Condition.IsNull(column)) }
fun isNotNull(column: String) = apply { conditions.add(Condition.IsNotNull(column)) }
fun isIn(
column: String,
values: List<Any>,
) = apply { conditions.add(Condition.In(column, values)) }
fun equalsOrIn(
column: String,
values: List<Any>,
) = apply {
if (values.size == 1) {
equals(column, values.first())
} else {
isIn(column, values)
}
}
fun and(block: WhereClauseBuilder.() -> Unit) =
apply {
val builder = WhereClauseBuilder().apply(block)
val builtCondition = builder.buildAnd()
if (builtCondition != null) {
conditions.add(builtCondition)
}
}
fun or(block: WhereClauseBuilder.() -> Unit) =
apply {
val builder = WhereClauseBuilder().apply(block)
val builtCondition = builder.buildOr()
if (builtCondition != null) {
conditions.add(builtCondition)
}
}
fun buildAnd(): Condition? =
when (conditions.size) {
0 -> null
1 -> conditions.first()
else -> Condition.And(conditions.toList())
}
fun buildOr(): Condition? =
when (conditions.size) {
0 -> null
1 -> conditions.first()
else -> Condition.Or(conditions.toList())
}
}
fun where(block: WhereClauseBuilder.() -> Unit): WhereClause {
val condition = WhereClauseBuilder().apply(block).buildAnd() ?: Condition.Empty()
return SqlSelectionBuilder(condition).build()
}
class WhereClause(
val conditions: String,
val args: List<String>,
)
@@ -20,12 +20,38 @@
*/
package com.vitorpamplona.quartz.utils
import com.goterl.lazysodium.LazySodium
import com.goterl.lazysodium.LazySodiumAndroid
import com.goterl.lazysodium.Sodium
import com.goterl.lazysodium.SodiumAndroid
actual object LibSodiumInstance {
private val libSodium = SodiumAndroid()
private val lazySodium = LazySodiumAndroid(libSodium)
private val libSodium: Sodium =
try {
// If we are running in a host test, SodiumJava might be available.
// SodiumJava uses a ResourceLoader to find the dylib/so/dll in the jar.
Class
.forName("com.goterl.lazysodium.SodiumJava")
.getConstructor()
.newInstance() as Sodium
} catch (_: Exception) {
SodiumAndroid()
}
private val lazySodium: LazySodium =
if (libSodium is SodiumAndroid) {
LazySodiumAndroid(libSodium)
} else {
// this should only happen on test cases
val sodiumJava =
Class
.forName("com.goterl.lazysodium.SodiumJava")
Class
.forName("com.goterl.lazysodium.LazySodiumJava")
.getConstructor(sodiumJava)
.newInstance(libSodium) as LazySodium
}
actual fun cryptoAeadXChaCha20Poly1305IetfDecrypt(
message: ByteArray,