forked from cory/tildefriends
1575 lines
49 KiB
C
1575 lines
49 KiB
C
#include "ssb.db.h"
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#include "log.h"
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#include "mem.h"
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#include "ssb.h"
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#include "trace.h"
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#include "util.js.h"
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#include "sodium/crypto_hash_sha256.h"
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#include "sodium/crypto_sign.h"
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#include "sqlite3.h"
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#include "uv.h"
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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typedef struct _message_store_t message_store_t;
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static void _tf_ssb_db_store_message_work_finish(message_store_t* store);
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static void _tf_ssb_db_store_message_after_work(uv_work_t* work, int status);
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static void _tf_ssb_db_exec(sqlite3* db, const char* statement)
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{
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char* error = NULL;
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int result = sqlite3_exec(db, statement, NULL, NULL, &error);
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if (result != SQLITE_OK)
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{
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tf_printf("Error running '%s': %s.\n", statement, error ? error : sqlite3_errmsg(db));
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abort();
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}
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}
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static bool _tf_ssb_db_has_rows(sqlite3* db, const char* query)
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{
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bool found = false;
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sqlite3_stmt* statement = NULL;
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if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
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{
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int result = SQLITE_OK;
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while ((result = sqlite3_step(statement)) == SQLITE_ROW)
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{
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found = true;
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}
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if (result != SQLITE_DONE)
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{
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tf_printf("%s\n", sqlite3_errmsg(db));
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abort();
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}
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sqlite3_finalize(statement);
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}
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else
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{
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tf_printf("%s\n", sqlite3_errmsg(db));
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abort();
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}
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return found;
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}
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static void _tf_ssb_db_init_internal(sqlite3* db)
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{
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sqlite3_extended_result_codes(db, 1);
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_tf_ssb_db_exec(db, "PRAGMA journal_mode = WAL");
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_tf_ssb_db_exec(db, "PRAGMA synchronous = NORMAL");
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}
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void tf_ssb_db_init_reader(sqlite3* db)
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{
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_tf_ssb_db_init_internal(db);
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}
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void tf_ssb_db_init(tf_ssb_t* ssb)
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{
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sqlite3* db = tf_ssb_acquire_db_writer(ssb);
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_tf_ssb_db_init_internal(db);
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sqlite3_stmt* statement = NULL;
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int auto_vacuum = 0;
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if (sqlite3_prepare(db, "PRAGMA auto_vacuum", -1, &statement, NULL) == SQLITE_OK)
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{
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if (sqlite3_step(statement) == SQLITE_ROW)
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{
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auto_vacuum = sqlite3_column_int(statement, 0);
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}
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sqlite3_finalize(statement);
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}
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if (auto_vacuum != 1 /* FULL */)
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{
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tf_printf("Enabling auto-vacuum and performing full vacuum.\n");
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_tf_ssb_db_exec(db, "PRAGMA auto_vacuum = FULL");
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_tf_ssb_db_exec(db, "VACUUM main");
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tf_printf("All clean.\n");
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}
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_tf_ssb_db_exec(db,
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"CREATE TABLE IF NOT EXISTS messages ("
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" author TEXT,"
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" id TEXT PRIMARY KEY,"
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" sequence INTEGER,"
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" timestamp REAL,"
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" previous TEXT,"
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" hash TEXT,"
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" content BLOB,"
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" signature TEXT,"
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" sequence_before_author INTEGER,"
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" UNIQUE(author, sequence)"
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")");
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if (_tf_ssb_db_has_rows(db, "SELECT name FROM pragma_table_info('messages') WHERE name = 'content' AND type == 'TEXT'"))
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{
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tf_printf("converting to JSONB\n");
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_tf_ssb_db_exec(db, "DROP TRIGGER IF EXISTS messages_ai_refs");
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_tf_ssb_db_exec(db, "DROP TRIGGER IF EXISTS messages_ad_refs");
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_tf_ssb_db_exec(db, "DROP TRIGGER IF EXISTS messages_ai");
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_tf_ssb_db_exec(db, "DROP TRIGGER IF EXISTS messages_ad");
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_tf_ssb_db_exec(db, "DROP TABLE IF EXISTS messages_fts");
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_tf_ssb_db_exec(db, "BEGIN TRANSACTION");
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_tf_ssb_db_exec(db, "ALTER TABLE messages ADD COLUMN contentb BLOB");
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_tf_ssb_db_exec(db, "UPDATE messages SET contentb = jsonb(content)");
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_tf_ssb_db_exec(db, "ALTER TABLE messages DROP COLUMN content");
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_tf_ssb_db_exec(db, "ALTER TABLE messages RENAME COLUMN contentb TO content");
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_tf_ssb_db_exec(db, "COMMIT TRANSACTION");
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}
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS messages_author_id_index ON messages (author, id)");
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS messages_author_sequence_index ON messages (author, sequence)");
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS messages_author_timestamp_index ON messages (author, timestamp)");
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS messages_timestamp_index ON messages (timestamp)");
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_tf_ssb_db_exec(db,
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"CREATE TABLE IF NOT EXISTS blobs ("
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" id TEXT PRIMARY KEY,"
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" content BLOB,"
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" created INTEGER"
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")");
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_tf_ssb_db_exec(db, "DROP TABLE IF EXISTS blob_wants");
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_tf_ssb_db_exec(db,
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"CREATE TABLE IF NOT EXISTS properties ("
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" id TEXT,"
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" key TEXT,"
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" value TEXT,"
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" UNIQUE(id, key)"
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")");
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_tf_ssb_db_exec(db,
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"CREATE TABLE IF NOT EXISTS connections ("
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" host TEXT,"
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" port INTEGER,"
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" key TEXT,"
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" last_attempt INTEGER,"
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" last_success INTEGER,"
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" UNIQUE(host, port, key)"
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")");
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_tf_ssb_db_exec(db,
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"CREATE TABLE IF NOT EXISTS identities ("
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" user TEXT,"
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" public_key TEXT UNIQUE,"
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" private_key TEXT UNIQUE"
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")");
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS identities_user ON identities (user, public_key)");
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bool populate_fts = false;
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if (!_tf_ssb_db_has_rows(db, "PRAGMA table_list('messages_fts')"))
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{
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_tf_ssb_db_exec(db, "CREATE VIRTUAL TABLE IF NOT EXISTS messages_fts USING fts5(content, content=messages, content_rowid=rowid)");
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populate_fts = true;
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}
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if (!populate_fts && /* HACK */ false)
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{
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tf_printf("Checking FTS5 integrity...\n");
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if (sqlite3_exec(db, "INSERT INTO messages_fts(messages_fts, rank) VALUES ('integrity-check', 0)", NULL, NULL, NULL) == SQLITE_CORRUPT_VTAB)
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{
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populate_fts = true;
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}
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tf_printf("Done.\n");
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}
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if (populate_fts)
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{
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tf_printf("Populating full-text search...\n");
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_tf_ssb_db_exec(db, "INSERT INTO messages_fts (rowid, content) SELECT rowid, json(content) FROM messages");
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tf_printf("Done.\n");
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}
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_tf_ssb_db_exec(
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db, "CREATE TRIGGER IF NOT EXISTS messages_ai AFTER INSERT ON messages BEGIN INSERT INTO messages_fts(rowid, content) VALUES (new.rowid, json(new.content)); END");
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_tf_ssb_db_exec(db,
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"CREATE TRIGGER IF NOT EXISTS messages_ad AFTER DELETE ON messages BEGIN INSERT INTO messages_fts(messages_fts, rowid, content) VALUES ('delete', old.rowid, "
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"old.content); END");
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if (!_tf_ssb_db_has_rows(db, "PRAGMA table_list('messages_refs')"))
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{
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_tf_ssb_db_exec(db,
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"CREATE TABLE IF NOT EXISTS messages_refs ("
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" message TEXT, "
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" ref TEXT, "
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" UNIQUE(message, ref)"
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")");
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tf_printf("Populating messages_refs...\n");
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_tf_ssb_db_exec(db,
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"INSERT INTO messages_refs(message, ref) "
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"SELECT messages.id, j.value FROM messages, json_tree(messages.content) as j WHERE "
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"j.value LIKE '&%.sha256' OR "
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"j.value LIKE '%%%.sha256' OR "
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"j.value LIKE '@%.ed25519' "
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"ON CONFLICT DO NOTHING");
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tf_printf("Done.\n");
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}
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_tf_ssb_db_exec(db, "DROP TRIGGER IF EXISTS messages_ai_refs");
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_tf_ssb_db_exec(db,
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"CREATE TRIGGER IF NOT EXISTS messages_ai_refs AFTER INSERT ON messages BEGIN "
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"INSERT INTO messages_refs(message, ref) "
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"SELECT DISTINCT new.id, j.value FROM json_tree(new.content) as j WHERE "
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"j.value LIKE '&%.sha256' OR "
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"j.value LIKE '%%%.sha256' OR "
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"j.value LIKE '@%.ed25519' "
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"ON CONFLICT DO NOTHING; END");
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_tf_ssb_db_exec(db, "DROP TRIGGER IF EXISTS messages_ad_refs");
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_tf_ssb_db_exec(db, "CREATE TRIGGER IF NOT EXISTS messages_ad_refs AFTER DELETE ON messages BEGIN DELETE FROM messages_refs WHERE messages_refs.message = old.id; END");
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS messages_refs_message_idx ON messages_refs (message)");
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS messages_refs_ref_idx ON messages_refs (ref)");
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_tf_ssb_db_exec(db, "DROP VIEW IF EXISTS blob_wants_view");
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_tf_ssb_db_exec(db,
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"CREATE VIEW IF NOT EXISTS blob_wants_view (id, timestamp) AS "
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" SELECT messages_refs.ref AS id, messages.timestamp AS timestamp "
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" FROM messages_refs "
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" JOIN messages ON messages.id = messages_refs.message "
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" LEFT OUTER JOIN blobs ON messages_refs.ref = blobs.id "
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" WHERE blobs.id IS NULL "
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" AND LENGTH(messages_refs.ref) = 52 "
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" AND messages_refs.ref LIKE '&%.sha256'");
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bool need_add_sequence_before_author = true;
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bool need_convert_timestamp_to_real = false;
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if (sqlite3_prepare(db, "PRAGMA table_info(messages)", -1, &statement, NULL) == SQLITE_OK)
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{
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int result = SQLITE_OK;
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while ((result = sqlite3_step(statement)) == SQLITE_ROW)
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{
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const char* name = (const char*)sqlite3_column_text(statement, 1);
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const char* type = (const char*)sqlite3_column_text(statement, 2);
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if (name && type && strcmp(name, "timestamp") == 0 && strcmp(type, "INTEGER") == 0)
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{
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need_convert_timestamp_to_real = true;
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}
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if (name && strcmp(name, "sequence_before_author") == 0)
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{
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need_add_sequence_before_author = false;
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}
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}
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sqlite3_finalize(statement);
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}
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if (need_convert_timestamp_to_real)
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{
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tf_printf("Converting timestamp column from INTEGER to REAL.\n");
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_tf_ssb_db_exec(db, "BEGIN TRANSACTION");
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_tf_ssb_db_exec(db, "DROP INDEX IF EXISTS messages_author_timestamp_index");
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_tf_ssb_db_exec(db, "ALTER TABLE messages ADD COLUMN timestamp_real REAL");
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_tf_ssb_db_exec(db, "UPDATE messages SET timestamp_real = timestamp");
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_tf_ssb_db_exec(db, "ALTER TABLE messages DROP COLUMN timestamp");
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_tf_ssb_db_exec(db, "ALTER TABLE messages RENAME COLUMN timestamp_real TO timestamp");
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_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS messages_author_timestamp_index ON messages (author, timestamp)");
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_tf_ssb_db_exec(db, "COMMIT TRANSACTION");
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}
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if (need_add_sequence_before_author)
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{
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tf_printf("Adding sequence_before_author column.\n");
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_tf_ssb_db_exec(db, "ALTER TABLE messages ADD COLUMN sequence_before_author INTEGER");
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}
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tf_ssb_release_db_writer(ssb, db);
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}
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static bool _tf_ssb_db_previous_message_exists(sqlite3* db, const char* author, int64_t sequence, const char* previous)
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{
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bool exists = false;
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if (sequence == 1)
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{
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exists = true;
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}
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else
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{
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sqlite3_stmt* statement;
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if (sqlite3_prepare(db, "SELECT COUNT(*) FROM messages WHERE author = ?1 AND sequence = ?2 AND id = ?3", -1, &statement, NULL) == SQLITE_OK)
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{
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if (sqlite3_bind_text(statement, 1, author, -1, NULL) == SQLITE_OK && sqlite3_bind_int64(statement, 2, sequence - 1) == SQLITE_OK &&
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sqlite3_bind_text(statement, 3, previous, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
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{
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exists = sqlite3_column_int(statement, 0) != 0;
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}
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sqlite3_finalize(statement);
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}
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}
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return exists;
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}
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static int64_t _tf_ssb_db_store_message_raw(tf_ssb_t* ssb, const char* id, const char* previous, const char* author, int64_t sequence, double timestamp, const char* content,
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size_t content_len, const char* signature, bool sequence_before_author)
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{
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sqlite3* db = tf_ssb_acquire_db_writer(ssb);
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int64_t last_row_id = -1;
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if (_tf_ssb_db_previous_message_exists(db, author, sequence, previous))
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{
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const char* query = "INSERT INTO messages (id, previous, author, sequence, timestamp, content, hash, signature, sequence_before_author) VALUES (?, ?, ?, ?, ?, jsonb(?), "
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"?, ?, ?) ON CONFLICT DO NOTHING";
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sqlite3_stmt* statement;
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if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
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{
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if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK &&
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(previous ? sqlite3_bind_text(statement, 2, previous, -1, NULL) : sqlite3_bind_null(statement, 2)) == SQLITE_OK &&
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sqlite3_bind_text(statement, 3, author, -1, NULL) == SQLITE_OK && sqlite3_bind_int64(statement, 4, sequence) == SQLITE_OK &&
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sqlite3_bind_double(statement, 5, timestamp) == SQLITE_OK && sqlite3_bind_text(statement, 6, content, content_len, NULL) == SQLITE_OK &&
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sqlite3_bind_text(statement, 7, "sha256", 6, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 8, signature, -1, NULL) == SQLITE_OK &&
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sqlite3_bind_int(statement, 9, sequence_before_author) == SQLITE_OK)
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{
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int r = sqlite3_step(statement);
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if (r != SQLITE_DONE)
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{
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tf_printf("_tf_ssb_db_store_message_raw: %s\n", sqlite3_errmsg(db));
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}
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if (r == SQLITE_DONE && sqlite3_changes(db) != 0)
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{
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last_row_id = sqlite3_last_insert_rowid(db);
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}
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}
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else
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{
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tf_printf("bind failed\n");
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}
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sqlite3_finalize(statement);
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}
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else
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{
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tf_printf("%s: prepare failed: %s\n", __FUNCTION__, sqlite3_errmsg(db));
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}
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}
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else
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{
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tf_printf("%p: Previous message doesn't exist for author=%s sequence=%" PRId64 ".\n", db, author, sequence);
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}
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tf_ssb_release_db_writer(ssb, db);
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return last_row_id;
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}
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static char* _tf_ssb_db_get_message_blob_wants(tf_ssb_t* ssb, int64_t rowid)
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{
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sqlite3* db = tf_ssb_acquire_db_reader(ssb);
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sqlite3_stmt* statement;
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char* result = NULL;
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size_t size = 0;
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if (sqlite3_prepare(db,
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"SELECT DISTINCT json.value FROM messages, json_tree(messages.content) AS json LEFT OUTER JOIN blobs ON json.value = blobs.id WHERE messages.rowid = ?1 AND "
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"json.value LIKE '&%%.sha256' AND length(json.value) = ?2 AND blobs.content IS NULL",
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-1, &statement, NULL) == SQLITE_OK)
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{
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if (sqlite3_bind_int64(statement, 1, rowid) == SQLITE_OK && sqlite3_bind_int(statement, 2, k_blob_id_len - 1) == SQLITE_OK)
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{
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int r = SQLITE_OK;
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while ((r = sqlite3_step(statement)) == SQLITE_ROW)
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{
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int id_size = sqlite3_column_bytes(statement, 0);
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const uint8_t* id = sqlite3_column_text(statement, 0);
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result = tf_resize_vec(result, size + id_size + 1);
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memcpy(result + size, id, id_size + 1);
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size += id_size + 1;
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}
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if (r != SQLITE_DONE)
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{
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tf_printf("%s\n", sqlite3_errmsg(db));
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}
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}
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else
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{
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tf_printf("bind failed: %s\n", sqlite3_errmsg(db));
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}
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sqlite3_finalize(statement);
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}
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else
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{
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tf_printf("%s: prepare failed: %s\n", __FUNCTION__, sqlite3_errmsg(db));
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}
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result = tf_realloc(result, size + 1);
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result[size] = '\0';
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tf_ssb_release_db_reader(ssb, db);
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return result;
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}
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typedef struct _message_store_t
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{
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uv_work_t work;
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tf_ssb_t* ssb;
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char id[k_id_base64_len];
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char signature[512];
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bool sequence_before_author;
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char previous[k_id_base64_len];
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char author[k_id_base64_len];
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int64_t sequence;
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double timestamp;
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const char* content;
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size_t length;
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bool out_stored;
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char* out_blob_wants;
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tf_ssb_db_store_message_callback_t* callback;
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void* user_data;
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message_store_t* next;
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} message_store_t;
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static void _tf_ssb_db_store_message_work(uv_work_t* work)
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{
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message_store_t* store = work->data;
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tf_ssb_record_thread_busy(store->ssb, true);
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tf_trace_t* trace = tf_ssb_get_trace(store->ssb);
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tf_trace_begin(trace, "message_store_work");
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int64_t last_row_id = _tf_ssb_db_store_message_raw(store->ssb, store->id, *store->previous ? store->previous : NULL, store->author, store->sequence, store->timestamp,
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store->content, store->length, store->signature, store->sequence_before_author);
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if (last_row_id != -1)
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{
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store->out_stored = true;
|
|
store->out_blob_wants = _tf_ssb_db_get_message_blob_wants(store->ssb, last_row_id);
|
|
}
|
|
tf_trace_end(trace);
|
|
tf_ssb_record_thread_busy(store->ssb, false);
|
|
}
|
|
|
|
static void _wake_up_queue(tf_ssb_t* ssb, tf_ssb_store_queue_t* queue)
|
|
{
|
|
if (!queue->running)
|
|
{
|
|
message_store_t* next = queue->head;
|
|
if (next)
|
|
{
|
|
queue->head = next->next;
|
|
if (queue->tail == next)
|
|
{
|
|
queue->tail = NULL;
|
|
}
|
|
next->next = NULL;
|
|
queue->running = true;
|
|
int r = uv_queue_work(tf_ssb_get_loop(ssb), &next->work, _tf_ssb_db_store_message_work, _tf_ssb_db_store_message_after_work);
|
|
if (r)
|
|
{
|
|
_tf_ssb_db_store_message_work_finish(next);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void _tf_ssb_db_store_message_work_finish(message_store_t* store)
|
|
{
|
|
JSContext* context = tf_ssb_get_context(store->ssb);
|
|
if (store->callback)
|
|
{
|
|
store->callback(store->id, store->out_stored, store->user_data);
|
|
}
|
|
JS_FreeCString(context, store->content);
|
|
tf_ssb_store_queue_t* queue = tf_ssb_get_store_queue(store->ssb);
|
|
queue->running = false;
|
|
_wake_up_queue(store->ssb, queue);
|
|
tf_free(store);
|
|
}
|
|
|
|
static void _tf_ssb_db_store_message_after_work(uv_work_t* work, int status)
|
|
{
|
|
message_store_t* store = work->data;
|
|
tf_trace_t* trace = tf_ssb_get_trace(store->ssb);
|
|
tf_trace_begin(trace, "message_store_after_work");
|
|
if (store->out_stored)
|
|
{
|
|
tf_trace_begin(trace, "notify_message_added");
|
|
JSContext* context = tf_ssb_get_context(store->ssb);
|
|
JSValue formatted = tf_ssb_format_message(
|
|
context, store->previous, store->author, store->sequence, store->timestamp, "sha256", store->content, store->signature, store->sequence_before_author);
|
|
JSValue message = JS_NewObject(context);
|
|
JS_SetPropertyStr(context, message, "key", JS_NewString(context, store->id));
|
|
JS_SetPropertyStr(context, message, "value", formatted);
|
|
char timestamp_string[256];
|
|
snprintf(timestamp_string, sizeof(timestamp_string), "%f", store->timestamp);
|
|
JS_SetPropertyStr(context, message, "timestamp", JS_NewString(context, timestamp_string));
|
|
tf_ssb_notify_message_added(store->ssb, store->id, message);
|
|
JS_FreeValue(context, message);
|
|
tf_trace_end(trace);
|
|
}
|
|
if (store->out_blob_wants)
|
|
{
|
|
tf_trace_begin(trace, "notify_blob_wants_added");
|
|
for (char* p = store->out_blob_wants; *p; p = p + strlen(p))
|
|
{
|
|
tf_ssb_notify_blob_want_added(store->ssb, p);
|
|
}
|
|
tf_free(store->out_blob_wants);
|
|
tf_trace_end(trace);
|
|
}
|
|
_tf_ssb_db_store_message_work_finish(store);
|
|
tf_trace_end(trace);
|
|
}
|
|
|
|
void tf_ssb_db_store_message(tf_ssb_t* ssb, JSContext* context, const char* id, JSValue val, const char* signature, bool sequence_before_author,
|
|
tf_ssb_db_store_message_callback_t* callback, void* user_data)
|
|
{
|
|
JSValue previousval = JS_GetPropertyStr(context, val, "previous");
|
|
const char* previous = JS_IsNull(previousval) ? NULL : JS_ToCString(context, previousval);
|
|
JS_FreeValue(context, previousval);
|
|
|
|
JSValue authorval = JS_GetPropertyStr(context, val, "author");
|
|
const char* author = JS_ToCString(context, authorval);
|
|
JS_FreeValue(context, authorval);
|
|
|
|
int64_t sequence = -1;
|
|
JSValue sequenceval = JS_GetPropertyStr(context, val, "sequence");
|
|
JS_ToInt64(context, &sequence, sequenceval);
|
|
JS_FreeValue(context, sequenceval);
|
|
|
|
double timestamp = -1.0;
|
|
JSValue timestampval = JS_GetPropertyStr(context, val, "timestamp");
|
|
JS_ToFloat64(context, ×tamp, timestampval);
|
|
JS_FreeValue(context, timestampval);
|
|
|
|
JSValue contentval = JS_GetPropertyStr(context, val, "content");
|
|
JSValue content = JS_JSONStringify(context, contentval, JS_NULL, JS_NULL);
|
|
size_t content_len;
|
|
const char* contentstr = JS_ToCStringLen(context, &content_len, content);
|
|
JS_FreeValue(context, content);
|
|
JS_FreeValue(context, contentval);
|
|
|
|
message_store_t* store = tf_malloc(sizeof(message_store_t));
|
|
*store = (message_store_t)
|
|
{
|
|
.work =
|
|
{
|
|
.data = store,
|
|
},
|
|
.ssb = ssb,
|
|
.sequence = sequence,
|
|
.timestamp = timestamp,
|
|
.content = contentstr,
|
|
.length = content_len,
|
|
.sequence_before_author = sequence_before_author,
|
|
|
|
.callback = callback,
|
|
.user_data = user_data,
|
|
};
|
|
snprintf(store->id, sizeof(store->id), "%s", id);
|
|
snprintf(store->previous, sizeof(store->previous), "%s", previous ? previous : "");
|
|
snprintf(store->author, sizeof(store->author), "%s", author);
|
|
snprintf(store->signature, sizeof(store->signature), "%s", signature);
|
|
JS_FreeCString(context, author);
|
|
JS_FreeCString(context, previous);
|
|
|
|
tf_ssb_store_queue_t* queue = tf_ssb_get_store_queue(ssb);
|
|
if (queue->tail)
|
|
{
|
|
message_store_t* tail = queue->tail;
|
|
tail->next = store;
|
|
queue->tail = store;
|
|
}
|
|
else
|
|
{
|
|
queue->head = store;
|
|
queue->tail = store;
|
|
}
|
|
_wake_up_queue(ssb, queue);
|
|
}
|
|
|
|
bool tf_ssb_db_message_content_get(tf_ssb_t* ssb, const char* id, uint8_t** out_blob, size_t* out_size)
|
|
{
|
|
bool result = false;
|
|
sqlite3_stmt* statement;
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
const char* query = "SELECT json(content) FROM messages WHERE id = ?";
|
|
if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
const uint8_t* blob = sqlite3_column_blob(statement, 0);
|
|
int size = sqlite3_column_bytes(statement, 0);
|
|
if (out_blob)
|
|
{
|
|
*out_blob = tf_malloc(size + 1);
|
|
memcpy(*out_blob, blob, size);
|
|
(*out_blob)[size] = '\0';
|
|
}
|
|
if (out_size)
|
|
{
|
|
*out_size = size;
|
|
}
|
|
result = true;
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return result;
|
|
}
|
|
|
|
bool tf_ssb_db_blob_has(tf_ssb_t* ssb, const char* id)
|
|
{
|
|
bool result = false;
|
|
sqlite3_stmt* statement;
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
const char* query = "SELECT COUNT(*) FROM blobs WHERE id = ?1";
|
|
if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
result = sqlite3_column_int64(statement, 0) != 0;
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return result;
|
|
}
|
|
|
|
bool tf_ssb_db_blob_get(tf_ssb_t* ssb, const char* id, uint8_t** out_blob, size_t* out_size)
|
|
{
|
|
bool result = false;
|
|
sqlite3_stmt* statement;
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
const char* query = "SELECT content FROM blobs WHERE id = ?1";
|
|
if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
const uint8_t* blob = sqlite3_column_blob(statement, 0);
|
|
int size = sqlite3_column_bytes(statement, 0);
|
|
if (out_blob)
|
|
{
|
|
*out_blob = tf_malloc(size + 1);
|
|
if (size)
|
|
{
|
|
memcpy(*out_blob, blob, size);
|
|
}
|
|
(*out_blob)[size] = '\0';
|
|
}
|
|
if (out_size)
|
|
{
|
|
*out_size = size;
|
|
}
|
|
result = true;
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return result;
|
|
}
|
|
|
|
typedef struct _blob_store_work_t
|
|
{
|
|
uv_work_t work;
|
|
tf_ssb_t* ssb;
|
|
const uint8_t* blob;
|
|
size_t size;
|
|
char id[k_blob_id_len];
|
|
bool is_new;
|
|
tf_ssb_db_blob_store_callback_t* callback;
|
|
void* user_data;
|
|
} blob_store_work_t;
|
|
|
|
static void _tf_ssb_db_blob_store_work(uv_work_t* work)
|
|
{
|
|
blob_store_work_t* blob_work = work->data;
|
|
tf_ssb_record_thread_busy(blob_work->ssb, true);
|
|
tf_trace_t* trace = tf_ssb_get_trace(blob_work->ssb);
|
|
tf_trace_begin(trace, "blob_store_work");
|
|
tf_ssb_db_blob_store(blob_work->ssb, blob_work->blob, blob_work->size, blob_work->id, sizeof(blob_work->id), &blob_work->is_new);
|
|
tf_trace_end(trace);
|
|
tf_ssb_record_thread_busy(blob_work->ssb, false);
|
|
}
|
|
|
|
static void _tf_ssb_db_blob_store_after_work(uv_work_t* work, int status)
|
|
{
|
|
blob_store_work_t* blob_work = work->data;
|
|
tf_trace_t* trace = tf_ssb_get_trace(blob_work->ssb);
|
|
tf_trace_begin(trace, "blob_store_after_work");
|
|
if (status == 0 && *blob_work->id)
|
|
{
|
|
tf_ssb_notify_blob_stored(blob_work->ssb, blob_work->id);
|
|
}
|
|
if (status != 0)
|
|
{
|
|
tf_printf("tf_ssb_db_blob_store_async -> uv_queue_work failed asynchronously: %s\n", uv_strerror(status));
|
|
}
|
|
if (blob_work->callback)
|
|
{
|
|
blob_work->callback(status == 0 ? blob_work->id : NULL, blob_work->is_new, blob_work->user_data);
|
|
}
|
|
tf_trace_end(trace);
|
|
tf_free(blob_work);
|
|
}
|
|
|
|
void tf_ssb_db_blob_store_async(tf_ssb_t* ssb, const uint8_t* blob, size_t size, tf_ssb_db_blob_store_callback_t* callback, void* user_data)
|
|
{
|
|
blob_store_work_t* work = tf_malloc(sizeof(blob_store_work_t));
|
|
*work = (blob_store_work_t)
|
|
{
|
|
.work =
|
|
{
|
|
.data = work,
|
|
},
|
|
.ssb = ssb,
|
|
.blob = blob,
|
|
.size = size,
|
|
.callback = callback,
|
|
.user_data = user_data,
|
|
};
|
|
int r = uv_queue_work(tf_ssb_get_loop(ssb), &work->work, _tf_ssb_db_blob_store_work, _tf_ssb_db_blob_store_after_work);
|
|
if (r)
|
|
{
|
|
tf_printf("tf_ssb_db_blob_store_async -> uv_queue_work failed immediately: %s\n", uv_strerror(r));
|
|
if (callback)
|
|
{
|
|
callback(NULL, false, user_data);
|
|
}
|
|
tf_free(work);
|
|
}
|
|
}
|
|
|
|
bool tf_ssb_db_blob_store(tf_ssb_t* ssb, const uint8_t* blob, size_t size, char* out_id, size_t out_id_size, bool* out_new)
|
|
{
|
|
bool result = false;
|
|
|
|
uint8_t hash[crypto_hash_sha256_BYTES];
|
|
crypto_hash_sha256(hash, blob, size);
|
|
|
|
char hash64[256];
|
|
tf_base64_encode(hash, sizeof(hash), hash64, sizeof(hash64));
|
|
|
|
char id[512];
|
|
snprintf(id, sizeof(id), "&%s.sha256", hash64);
|
|
|
|
int rows = 0;
|
|
|
|
sqlite3* db = tf_ssb_acquire_db_writer(ssb);
|
|
sqlite3_stmt* statement;
|
|
if (sqlite3_prepare(db, "INSERT INTO blobs (id, content, created) VALUES (?1, ?2, CAST(strftime('%s') AS INTEGER)) ON CONFLICT DO NOTHING", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK && sqlite3_bind_blob(statement, 2, blob, size, NULL) == SQLITE_OK)
|
|
{
|
|
result = sqlite3_step(statement) == SQLITE_DONE;
|
|
rows = sqlite3_changes(db);
|
|
}
|
|
else
|
|
{
|
|
tf_printf("bind failed: %s\n", sqlite3_errmsg(db));
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
else
|
|
{
|
|
tf_printf("%s: prepare failed: %s\n", __FUNCTION__, sqlite3_errmsg(db));
|
|
}
|
|
tf_ssb_release_db_writer(ssb, db);
|
|
|
|
if (rows)
|
|
{
|
|
if (!out_new)
|
|
{
|
|
tf_printf("blob stored %s %zd => %d\n", id, size, result);
|
|
}
|
|
}
|
|
|
|
if (result && out_id)
|
|
{
|
|
snprintf(out_id, out_id_size, "%s", id);
|
|
}
|
|
if (out_new)
|
|
{
|
|
*out_new = rows != 0;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool tf_ssb_db_get_message_by_author_and_sequence(
|
|
tf_ssb_t* ssb, const char* author, int64_t sequence, char* out_message_id, size_t out_message_id_size, double* out_timestamp, char** out_content)
|
|
{
|
|
bool found = false;
|
|
sqlite3_stmt* statement;
|
|
const char* query = "SELECT id, timestamp, json(content) FROM messages WHERE author = ?1 AND sequence = ?2";
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, author, -1, NULL) == SQLITE_OK && sqlite3_bind_int64(statement, 2, sequence) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
if (out_message_id)
|
|
{
|
|
strncpy(out_message_id, (const char*)sqlite3_column_text(statement, 0), out_message_id_size - 1);
|
|
}
|
|
if (out_timestamp)
|
|
{
|
|
*out_timestamp = sqlite3_column_double(statement, 1);
|
|
}
|
|
if (out_content)
|
|
{
|
|
*out_content = tf_strdup((const char*)sqlite3_column_text(statement, 2));
|
|
}
|
|
found = true;
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
else
|
|
{
|
|
tf_printf("%s: prepare failed: %s\n", __FUNCTION__, sqlite3_errmsg(db));
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return found;
|
|
}
|
|
|
|
bool tf_ssb_db_get_latest_message_by_author(tf_ssb_t* ssb, const char* author, int64_t* out_sequence, char* out_message_id, size_t out_message_id_size)
|
|
{
|
|
bool found = false;
|
|
sqlite3_stmt* statement;
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
const char* query = "SELECT id, sequence FROM messages WHERE author = ?1 AND sequence = (SELECT MAX(sequence) FROM messages WHERE author = ?1)";
|
|
if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, author, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
if (out_sequence)
|
|
{
|
|
*out_sequence = sqlite3_column_int64(statement, 1);
|
|
}
|
|
if (out_message_id)
|
|
{
|
|
strncpy(out_message_id, (const char*)sqlite3_column_text(statement, 0), out_message_id_size - 1);
|
|
}
|
|
found = true;
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
else
|
|
{
|
|
tf_printf("%s: prepare failed: %s\n", __FUNCTION__, sqlite3_errmsg(db));
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return found;
|
|
}
|
|
|
|
static JSValue _tf_ssb_sqlite_bind_json(JSContext* context, sqlite3* db, sqlite3_stmt* statement, JSValue binds)
|
|
{
|
|
if (JS_IsUndefined(binds))
|
|
{
|
|
return JS_UNDEFINED;
|
|
}
|
|
if (!JS_IsArray(context, binds))
|
|
{
|
|
return JS_ThrowTypeError(context, "Expected bind parameters to be an array.");
|
|
}
|
|
|
|
JSValue result = JS_UNDEFINED;
|
|
int32_t length = tf_util_get_length(context, binds);
|
|
for (int i = 0; i < length && JS_IsUndefined(result); i++)
|
|
{
|
|
JSValue value = JS_GetPropertyUint32(context, binds, i);
|
|
if (JS_IsNumber(value))
|
|
{
|
|
int64_t number = 0;
|
|
JS_ToInt64(context, &number, value);
|
|
if (sqlite3_bind_int64(statement, i + 1, number) != SQLITE_OK)
|
|
{
|
|
result = JS_ThrowInternalError(context, "Failed to bind: %s.", sqlite3_errmsg(db));
|
|
}
|
|
}
|
|
else if (JS_IsBool(value))
|
|
{
|
|
if (sqlite3_bind_int(statement, i + 1, JS_ToBool(context, value) ? 1 : 0) != SQLITE_OK)
|
|
{
|
|
result = JS_ThrowInternalError(context, "Failed to bind: %s.", sqlite3_errmsg(db));
|
|
}
|
|
}
|
|
else if (JS_IsNull(value))
|
|
{
|
|
if (sqlite3_bind_null(statement, i + 1) != SQLITE_OK)
|
|
{
|
|
result = JS_ThrowInternalError(context, "Failed to bind: %s.", sqlite3_errmsg(db));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
size_t str_len = 0;
|
|
const char* str = JS_ToCStringLen(context, &str_len, value);
|
|
if (str)
|
|
{
|
|
if (sqlite3_bind_text(statement, i + 1, str, str_len, SQLITE_TRANSIENT) != SQLITE_OK)
|
|
{
|
|
result = JS_ThrowInternalError(context, "Failed to bind: %s.", sqlite3_errmsg(db));
|
|
}
|
|
JS_FreeCString(context, str);
|
|
}
|
|
else
|
|
{
|
|
result = JS_ThrowInternalError(context, "Could not convert bind argument %d to string.", i);
|
|
}
|
|
}
|
|
JS_FreeValue(context, value);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static JSValue _tf_ssb_sqlite_row_to_json(JSContext* context, sqlite3_stmt* row)
|
|
{
|
|
JSValue result = JS_NewObject(context);
|
|
for (int i = 0; i < sqlite3_column_count(row); i++)
|
|
{
|
|
const char* name = sqlite3_column_name(row, i);
|
|
switch (sqlite3_column_type(row, i))
|
|
{
|
|
case SQLITE_INTEGER:
|
|
JS_SetPropertyStr(context, result, name, JS_NewInt64(context, sqlite3_column_int64(row, i)));
|
|
break;
|
|
case SQLITE_FLOAT:
|
|
JS_SetPropertyStr(context, result, name, JS_NewFloat64(context, sqlite3_column_double(row, i)));
|
|
break;
|
|
case SQLITE_TEXT:
|
|
JS_SetPropertyStr(context, result, name, JS_NewStringLen(context, (const char*)sqlite3_column_text(row, i), sqlite3_column_bytes(row, i)));
|
|
break;
|
|
case SQLITE_BLOB:
|
|
JS_SetPropertyStr(context, result, name, JS_NewArrayBufferCopy(context, sqlite3_column_blob(row, i), sqlite3_column_bytes(row, i)));
|
|
break;
|
|
case SQLITE_NULL:
|
|
JS_SetPropertyStr(context, result, name, JS_NULL);
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
int tf_ssb_sqlite_authorizer(void* user_data, int action_code, const char* arg0, const char* arg1, const char* arg2, const char* arg3)
|
|
{
|
|
int result = SQLITE_DENY;
|
|
switch (action_code)
|
|
{
|
|
case SQLITE_SELECT:
|
|
case SQLITE_FUNCTION:
|
|
result = SQLITE_OK;
|
|
break;
|
|
case SQLITE_READ:
|
|
result = (strcmp(arg0, "blob_wants_view") == 0 || strcmp(arg0, "json_each") == 0 || strcmp(arg0, "json_tree") == 0 || strcmp(arg0, "messages") == 0 ||
|
|
strcmp(arg0, "messages_fts") == 0 || strcmp(arg0, "messages_fts_idx") == 0 || strcmp(arg0, "messages_fts_config") == 0 || strcmp(arg0, "messages_refs") == 0 ||
|
|
strcmp(arg0, "messages_refs_message_idx") == 0 || strcmp(arg0, "messages_refs_ref_idx") == 0 || strcmp(arg0, "sqlite_master") == 0 || false)
|
|
? SQLITE_OK
|
|
: SQLITE_DENY;
|
|
break;
|
|
case SQLITE_PRAGMA:
|
|
result = strcmp(arg0, "data_version") == 0 ? SQLITE_OK : SQLITE_DENY;
|
|
break;
|
|
case SQLITE_UPDATE:
|
|
result = strcmp(arg0, "sqlite_master") == 0 ? SQLITE_OK : SQLITE_DENY;
|
|
break;
|
|
}
|
|
if (result != SQLITE_OK)
|
|
{
|
|
tf_printf("Denying sqlite access to %d %s %s %s %s\n", action_code, arg0, arg1, arg2, arg3);
|
|
fflush(stdout);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
JSValue tf_ssb_db_visit_query(tf_ssb_t* ssb, const char* query, const JSValue binds, void (*callback)(JSValue row, void* user_data), void* user_data)
|
|
{
|
|
JSValue result = JS_UNDEFINED;
|
|
sqlite3* db = tf_ssb_acquire_db_reader_restricted(ssb);
|
|
JSContext* context = tf_ssb_get_context(ssb);
|
|
sqlite3_stmt* statement;
|
|
if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
JSValue bind_result = _tf_ssb_sqlite_bind_json(context, db, statement, binds);
|
|
if (JS_IsUndefined(bind_result))
|
|
{
|
|
int r = SQLITE_OK;
|
|
while ((r = sqlite3_step(statement)) == SQLITE_ROW)
|
|
{
|
|
JSValue row = _tf_ssb_sqlite_row_to_json(context, statement);
|
|
tf_trace_t* trace = tf_ssb_get_trace(ssb);
|
|
tf_trace_begin(trace, "callback");
|
|
callback(row, user_data);
|
|
tf_trace_end(trace);
|
|
JS_FreeValue(context, row);
|
|
}
|
|
if (r != SQLITE_DONE)
|
|
{
|
|
result = JS_ThrowInternalError(context, "SQL Error %s: running \"%s\".", sqlite3_errmsg(db), query);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result = bind_result;
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
else
|
|
{
|
|
result = JS_ThrowInternalError(context, "SQL Error %s: preparing \"%s\".", sqlite3_errmsg(db), query);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return result;
|
|
}
|
|
|
|
JSValue tf_ssb_format_message(JSContext* context, const char* previous, const char* author, int64_t sequence, double timestamp, const char* hash, const char* content,
|
|
const char* signature, bool sequence_before_author)
|
|
{
|
|
JSValue value = JS_NewObject(context);
|
|
JS_SetPropertyStr(context, value, "previous", (previous && *previous) ? JS_NewString(context, previous) : JS_NULL);
|
|
if (sequence_before_author)
|
|
{
|
|
JS_SetPropertyStr(context, value, "sequence", JS_NewInt64(context, sequence));
|
|
JS_SetPropertyStr(context, value, "author", JS_NewString(context, author));
|
|
}
|
|
else
|
|
{
|
|
JS_SetPropertyStr(context, value, "author", JS_NewString(context, author));
|
|
JS_SetPropertyStr(context, value, "sequence", JS_NewInt64(context, sequence));
|
|
}
|
|
JS_SetPropertyStr(context, value, "timestamp", JS_NewFloat64(context, timestamp));
|
|
JS_SetPropertyStr(context, value, "hash", JS_NewString(context, hash));
|
|
JS_SetPropertyStr(context, value, "content", JS_ParseJSON(context, content, strlen(content), NULL));
|
|
JS_SetPropertyStr(context, value, "signature", JS_NewString(context, signature));
|
|
return value;
|
|
}
|
|
|
|
int tf_ssb_db_identity_get_count_for_user(tf_ssb_t* ssb, const char* user)
|
|
{
|
|
int count = 0;
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
sqlite3_stmt* statement = NULL;
|
|
if (sqlite3_prepare(db, "SELECT COUNT(*) FROM identities WHERE user = ?", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
count = sqlite3_column_int(statement, 0);
|
|
}
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return count;
|
|
}
|
|
|
|
bool tf_ssb_db_identity_create(tf_ssb_t* ssb, const char* user, uint8_t* out_public_key, uint8_t* out_private_key)
|
|
{
|
|
int count = tf_ssb_db_identity_get_count_for_user(ssb, user);
|
|
if (count < 16)
|
|
{
|
|
char public[512];
|
|
char private[512];
|
|
tf_ssb_generate_keys_buffer(public, sizeof(public), private, sizeof(private));
|
|
if (tf_ssb_db_identity_add(ssb, user, public, private))
|
|
{
|
|
tf_ssb_id_str_to_bin(out_public_key, public);
|
|
tf_ssb_id_str_to_bin(out_private_key, private);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool tf_ssb_db_identity_add(tf_ssb_t* ssb, const char* user, const char* public_key, const char* private_key)
|
|
{
|
|
bool added = false;
|
|
sqlite3* db = tf_ssb_acquire_db_writer(ssb);
|
|
sqlite3_stmt* statement = NULL;
|
|
if (sqlite3_prepare(db, "INSERT INTO identities (user, public_key, private_key) VALUES (?, ?, ?) ON CONFLICT DO NOTHING", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 2, public_key, -1, NULL) == SQLITE_OK &&
|
|
sqlite3_bind_text(statement, 3, private_key, -1, NULL) == SQLITE_OK)
|
|
{
|
|
added = sqlite3_step(statement) == SQLITE_DONE && sqlite3_changes(db) != 0;
|
|
if (!added)
|
|
{
|
|
tf_printf("Unable to add identity: %s.\n", sqlite3_errmsg(db));
|
|
}
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_writer(ssb, db);
|
|
return added;
|
|
}
|
|
|
|
bool tf_ssb_db_identity_delete(tf_ssb_t* ssb, const char* user, const char* public_key)
|
|
{
|
|
bool removed = false;
|
|
sqlite3* db = tf_ssb_acquire_db_writer(ssb);
|
|
sqlite3_stmt* statement = NULL;
|
|
tf_printf("deleting [%s] [%s]\n", user, public_key);
|
|
if (sqlite3_prepare(db, "DELETE FROM identities WHERE user = ? AND public_key = ?", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 2, public_key, -1, NULL) == SQLITE_OK)
|
|
{
|
|
removed = sqlite3_step(statement) == SQLITE_DONE && sqlite3_changes(db) != 0;
|
|
if (!removed)
|
|
{
|
|
tf_printf("Unable to delete identity: %s.\n", sqlite3_errmsg(db));
|
|
}
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_writer(ssb, db);
|
|
return removed;
|
|
}
|
|
|
|
void tf_ssb_db_identity_visit(tf_ssb_t* ssb, const char* user, void (*callback)(const char* identity, void* user_data), void* user_data)
|
|
{
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
sqlite3_stmt* statement = NULL;
|
|
if (sqlite3_prepare(db, "SELECT public_key FROM identities WHERE user = ? ORDER BY public_key", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK)
|
|
{
|
|
while (sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
callback((const char*)sqlite3_column_text(statement, 0), user_data);
|
|
}
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
}
|
|
|
|
void tf_ssb_db_identity_visit_all(tf_ssb_t* ssb, void (*callback)(const char* identity, void* user_data), void* user_data)
|
|
{
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
sqlite3_stmt* statement = NULL;
|
|
if (sqlite3_prepare(db, "SELECT public_key FROM identities ORDER BY public_key", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
while (sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
callback((const char*)sqlite3_column_text(statement, 0), user_data);
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
}
|
|
|
|
bool tf_ssb_db_identity_get_private_key(tf_ssb_t* ssb, const char* user, const char* public_key, uint8_t* out_private_key, size_t private_key_size)
|
|
{
|
|
bool success = false;
|
|
if (out_private_key)
|
|
{
|
|
memset(out_private_key, 0, private_key_size);
|
|
}
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
sqlite3_stmt* statement = NULL;
|
|
if (sqlite3_prepare(db, "SELECT private_key FROM identities WHERE user = ? AND public_key = ?", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK &&
|
|
sqlite3_bind_text(statement, 2, (public_key && *public_key == '@') ? public_key + 1 : public_key, -1, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
const char* key = (const char*)sqlite3_column_text(statement, 0);
|
|
if (out_private_key && private_key_size)
|
|
{
|
|
int r = tf_base64_decode(key, sqlite3_column_bytes(statement, 0) - strlen(".ed25519"), out_private_key, private_key_size);
|
|
success = r > 0;
|
|
}
|
|
else
|
|
{
|
|
success = true;
|
|
}
|
|
}
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return success;
|
|
}
|
|
|
|
typedef struct _following_t following_t;
|
|
|
|
typedef struct _following_t
|
|
{
|
|
char id[k_id_base64_len];
|
|
following_t** following;
|
|
following_t** blocking;
|
|
int following_count;
|
|
int blocking_count;
|
|
int depth;
|
|
int ref_count;
|
|
int block_ref_count;
|
|
bool populated;
|
|
} following_t;
|
|
|
|
static int _following_compare(const void* a, const void* b)
|
|
{
|
|
const char* ida = a;
|
|
const following_t* const* followingb = b;
|
|
return strcmp(ida, (*followingb)->id);
|
|
}
|
|
|
|
static bool _has_following_entry(const char* id, following_t** list, int count)
|
|
{
|
|
return count ? bsearch(id, list, count, sizeof(following_t*), _following_compare) != 0 : false;
|
|
}
|
|
|
|
static bool _add_following_entry(following_t*** list, int* count, following_t* add)
|
|
{
|
|
int index = tf_util_insert_index(add->id, *list, *count, sizeof(following_t*), _following_compare);
|
|
if (index >= *count || strcmp(add->id, (*list)[index]->id) != 0)
|
|
{
|
|
*list = tf_resize_vec(*list, sizeof(**list) * (*count + 1));
|
|
if (*count - index)
|
|
{
|
|
memmove(*list + index + 1, *list + index, sizeof(following_t*) * (*count - index));
|
|
}
|
|
(*list)[index] = add;
|
|
(*count)++;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool _remove_following_entry(following_t*** list, int* count, following_t* remove)
|
|
{
|
|
int index = tf_util_insert_index(remove->id, *list, *count, sizeof(following_t*), _following_compare);
|
|
if (index < *count && strcmp(remove->id, (*list)[index]->id) == 0)
|
|
{
|
|
if (*count - index > 1)
|
|
{
|
|
memmove(*list + index, *list + index + 1, sizeof(following_t*) * (*count - index - 1));
|
|
}
|
|
*list = tf_resize_vec(*list, sizeof(**list) * (*count - 1));
|
|
(*count)--;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
typedef struct _block_node_t block_node_t;
|
|
|
|
typedef struct _block_node_t
|
|
{
|
|
following_t* entry;
|
|
block_node_t* parent;
|
|
} block_node_t;
|
|
|
|
static bool _is_blocked_by_active_blocks(const char* id, const block_node_t* blocks)
|
|
{
|
|
for (const block_node_t* b = blocks; b; b = b->parent)
|
|
{
|
|
if (_has_following_entry(id, b->entry->blocking, b->entry->blocking_count))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static following_t* _make_following_node(const char* id, following_t*** following, int* following_count, block_node_t* blocks)
|
|
{
|
|
if (_is_blocked_by_active_blocks(id, blocks))
|
|
{
|
|
return NULL;
|
|
}
|
|
int index = tf_util_insert_index(id, *following, *following_count, sizeof(following_t*), _following_compare);
|
|
following_t* entry = NULL;
|
|
if (index < *following_count && strcmp(id, (*following)[index]->id) == 0)
|
|
{
|
|
entry = (*following)[index];
|
|
}
|
|
else
|
|
{
|
|
*following = tf_resize_vec(*following, sizeof(*following) * (*following_count + 1));
|
|
if (*following_count - index)
|
|
{
|
|
memmove(*following + index + 1, *following + index, sizeof(following_t*) * (*following_count - index));
|
|
}
|
|
entry = tf_malloc(sizeof(following_t));
|
|
(*following)[index] = entry;
|
|
(*following_count)++;
|
|
memset(entry, 0, sizeof(*entry));
|
|
entry->depth = INT_MAX;
|
|
snprintf(entry->id, sizeof(entry->id), "%s", id);
|
|
}
|
|
return entry;
|
|
}
|
|
|
|
static void _populate_follows_and_blocks(tf_ssb_t* ssb, following_t* entry, following_t*** following, int* following_count, block_node_t* active_blocks)
|
|
{
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
sqlite3_stmt* statement = NULL;
|
|
if (sqlite3_prepare(db,
|
|
"SELECT json_extract(content, '$.contact') AS contact, json_extract(content, '$.following'), json_extract(content, '$.blocking') "
|
|
"FROM messages "
|
|
"WHERE contact IS NOT NULL AND author = ? AND json_extract(content, '$.type') = 'contact' "
|
|
"ORDER BY sequence",
|
|
-1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, entry->id, -1, NULL) == SQLITE_OK)
|
|
{
|
|
while (sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
const char* contact = (const char*)sqlite3_column_text(statement, 0);
|
|
if (sqlite3_column_type(statement, 1) != SQLITE_NULL)
|
|
{
|
|
bool is_following = sqlite3_column_int(statement, 1) != 0;
|
|
following_t* next = _make_following_node(contact, following, following_count, active_blocks);
|
|
if (next)
|
|
{
|
|
if (is_following)
|
|
{
|
|
if (_add_following_entry(&entry->following, &entry->following_count, next))
|
|
{
|
|
next->ref_count++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (_remove_following_entry(&entry->following, &entry->following_count, next))
|
|
{
|
|
next->ref_count--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (sqlite3_column_type(statement, 2) != SQLITE_NULL)
|
|
{
|
|
bool is_blocking = sqlite3_column_int(statement, 2) != 0;
|
|
following_t* next = _make_following_node(contact, following, following_count, active_blocks);
|
|
if (next)
|
|
{
|
|
if (is_blocking)
|
|
{
|
|
if (_add_following_entry(&entry->blocking, &entry->blocking_count, next))
|
|
{
|
|
next->block_ref_count++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (_remove_following_entry(&entry->blocking, &entry->blocking_count, next))
|
|
{
|
|
next->block_ref_count--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
}
|
|
|
|
static void _get_following(tf_ssb_t* ssb, following_t* entry, following_t*** following, int* following_count, int depth, int max_depth, block_node_t* active_blocks)
|
|
{
|
|
entry->depth = tf_min(depth, entry->depth);
|
|
if (depth < max_depth && !entry->populated && !_is_blocked_by_active_blocks(entry->id, active_blocks))
|
|
{
|
|
entry->populated = true;
|
|
_populate_follows_and_blocks(ssb, entry, following, following_count, active_blocks);
|
|
|
|
if (depth < max_depth)
|
|
{
|
|
block_node_t blocks = { .entry = entry, .parent = active_blocks };
|
|
for (int i = 0; i < entry->following_count; i++)
|
|
{
|
|
if (!_has_following_entry(entry->following[i]->id, entry->blocking, entry->blocking_count))
|
|
{
|
|
_get_following(ssb, entry->following[i], following, following_count, depth + 1, max_depth, &blocks);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
tf_ssb_following_t* tf_ssb_db_following_deep(tf_ssb_t* ssb, const char** ids, int count, int depth)
|
|
{
|
|
following_t** following = NULL;
|
|
int following_count = 0;
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
following_t* entry = _make_following_node(ids[i], &following, &following_count, NULL);
|
|
_get_following(ssb, entry, &following, &following_count, 0, depth, NULL);
|
|
entry->ref_count++;
|
|
}
|
|
|
|
int actual_following_count = 0;
|
|
for (int i = 0; i < following_count; i++)
|
|
{
|
|
if (following[i]->ref_count > 0)
|
|
{
|
|
actual_following_count++;
|
|
}
|
|
}
|
|
|
|
tf_ssb_following_t* result = tf_malloc(sizeof(tf_ssb_following_t) * (actual_following_count + 1));
|
|
memset(result, 0, sizeof(tf_ssb_following_t) * (actual_following_count + 1));
|
|
|
|
int write_index = 0;
|
|
for (int i = 0; i < following_count; i++)
|
|
{
|
|
if (following[i]->ref_count > 0)
|
|
{
|
|
snprintf(result[write_index].id, sizeof(result[write_index].id), "%s", following[i]->id);
|
|
result[write_index].following_count = following[i]->following_count;
|
|
result[write_index].blocking_count = following[i]->blocking_count;
|
|
result[write_index].followed_by_count = following[i]->ref_count;
|
|
result[write_index].blocked_by_count = following[i]->block_ref_count;
|
|
write_index++;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < following_count; i++)
|
|
{
|
|
tf_free(following[i]->following);
|
|
tf_free(following[i]->blocking);
|
|
tf_free(following[i]);
|
|
}
|
|
tf_free(following);
|
|
|
|
return result;
|
|
}
|
|
|
|
const char** tf_ssb_db_following_deep_ids(tf_ssb_t* ssb, const char** ids, int count, int depth)
|
|
{
|
|
following_t** following = NULL;
|
|
int following_count = 0;
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
following_t* entry = _make_following_node(ids[i], &following, &following_count, NULL);
|
|
_get_following(ssb, entry, &following, &following_count, 0, depth, NULL);
|
|
entry->ref_count++;
|
|
}
|
|
|
|
int actual_following_count = 0;
|
|
for (int i = 0; i < following_count; i++)
|
|
{
|
|
if (following[i]->ref_count > 0)
|
|
{
|
|
actual_following_count++;
|
|
}
|
|
}
|
|
|
|
char** result = tf_malloc(sizeof(char*) * (actual_following_count + 1) + k_id_base64_len * actual_following_count);
|
|
char* result_ids = (char*)result + sizeof(char*) * (actual_following_count + 1);
|
|
|
|
int write_index = 0;
|
|
for (int i = 0; i < following_count; i++)
|
|
{
|
|
if (following[i]->ref_count > 0)
|
|
{
|
|
result[write_index] = result_ids + k_id_base64_len * write_index;
|
|
snprintf(result[write_index], k_id_base64_len, "%s", following[i]->id);
|
|
write_index++;
|
|
}
|
|
}
|
|
result[actual_following_count] = NULL;
|
|
|
|
for (int i = 0; i < following_count; i++)
|
|
{
|
|
tf_free(following[i]->following);
|
|
tf_free(following[i]->blocking);
|
|
tf_free(following[i]);
|
|
}
|
|
tf_free(following);
|
|
|
|
return (const char**)result;
|
|
}
|
|
|
|
typedef struct _identities_t
|
|
{
|
|
const char** ids;
|
|
int count;
|
|
} identities_t;
|
|
|
|
static void _add_identity(const char* identity, void* user_data)
|
|
{
|
|
identities_t* identities = user_data;
|
|
char full_id[k_id_base64_len];
|
|
snprintf(full_id, sizeof(full_id), "@%s", identity);
|
|
identities->ids = tf_resize_vec(identities->ids, sizeof(const char*) * (identities->count + 1));
|
|
identities->ids[identities->count++] = tf_strdup(full_id);
|
|
}
|
|
|
|
const char** tf_ssb_db_get_all_visible_identities(tf_ssb_t* ssb, int depth)
|
|
{
|
|
identities_t identities = { 0 };
|
|
tf_ssb_db_identity_visit_all(ssb, _add_identity, &identities);
|
|
const char** following = tf_ssb_db_following_deep_ids(ssb, identities.ids, identities.count, depth);
|
|
for (int i = 0; i < identities.count; i++)
|
|
{
|
|
tf_free((void*)identities.ids[i]);
|
|
}
|
|
tf_free(identities.ids);
|
|
return following;
|
|
}
|
|
|
|
JSValue tf_ssb_db_get_message_by_id(tf_ssb_t* ssb, const char* id, bool is_keys)
|
|
{
|
|
JSValue result = JS_UNDEFINED;
|
|
JSContext* context = tf_ssb_get_context(ssb);
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
sqlite3_stmt* statement;
|
|
if (sqlite3_prepare(db, "SELECT previous, author, id, sequence, timestamp, hash, json(content), signature, sequence_before_author FROM messages WHERE id = ?", -1, &statement,
|
|
NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
JSValue message = JS_UNDEFINED;
|
|
JSValue formatted = tf_ssb_format_message(context, (const char*)sqlite3_column_text(statement, 0), (const char*)sqlite3_column_text(statement, 1),
|
|
sqlite3_column_int64(statement, 3), sqlite3_column_double(statement, 4), (const char*)sqlite3_column_text(statement, 5),
|
|
(const char*)sqlite3_column_text(statement, 6), (const char*)sqlite3_column_text(statement, 7), sqlite3_column_int(statement, 8));
|
|
if (is_keys)
|
|
{
|
|
message = JS_NewObject(context);
|
|
JS_SetPropertyStr(context, message, "key", JS_NewString(context, (const char*)sqlite3_column_text(statement, 2)));
|
|
JS_SetPropertyStr(context, message, "value", formatted);
|
|
JS_SetPropertyStr(context, message, "timestamp", JS_NewString(context, (const char*)sqlite3_column_text(statement, 4)));
|
|
}
|
|
else
|
|
{
|
|
message = formatted;
|
|
}
|
|
result = message;
|
|
}
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
return result;
|
|
}
|
|
|
|
tf_ssb_db_stored_connection_t* tf_ssb_db_get_stored_connections(tf_ssb_t* ssb, int* out_count)
|
|
{
|
|
sqlite3* db = tf_ssb_acquire_db_reader(ssb);
|
|
tf_ssb_db_stored_connection_t* result = NULL;
|
|
int count = 0;
|
|
|
|
sqlite3_stmt* statement;
|
|
if (sqlite3_prepare(db, "SELECT host, port, key FROM connections ORDER BY host, port, key", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
while (sqlite3_step(statement) == SQLITE_ROW)
|
|
{
|
|
result = tf_resize_vec(result, sizeof(tf_ssb_db_stored_connection_t) * (count + 1));
|
|
result[count] = (tf_ssb_db_stored_connection_t) {
|
|
.port = sqlite3_column_int(statement, 1),
|
|
};
|
|
snprintf(result[count].address, sizeof(result[count].address), "%s", (const char*)sqlite3_column_text(statement, 0));
|
|
snprintf(result[count].pubkey, sizeof(result[count].pubkey), "%s", (const char*)sqlite3_column_text(statement, 2));
|
|
count++;
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_reader(ssb, db);
|
|
|
|
*out_count = count;
|
|
return result;
|
|
}
|
|
|
|
void tf_ssb_db_forget_stored_connection(tf_ssb_t* ssb, const char* address, int port, const char* pubkey)
|
|
{
|
|
sqlite3* db = tf_ssb_acquire_db_writer(ssb);
|
|
sqlite3_stmt* statement;
|
|
if (sqlite3_prepare(db, "DELETE FROM connections WHERE host = ? AND port = ? AND key = ?", -1, &statement, NULL) == SQLITE_OK)
|
|
{
|
|
if (sqlite3_bind_text(statement, 1, address, -1, NULL) != SQLITE_OK || sqlite3_bind_int(statement, 2, port) != SQLITE_OK ||
|
|
sqlite3_bind_text(statement, 3, pubkey, -1, NULL) != SQLITE_OK || sqlite3_step(statement) != SQLITE_DONE)
|
|
{
|
|
tf_printf("Delete stored connection: %s.\n", sqlite3_errmsg(db));
|
|
}
|
|
sqlite3_finalize(statement);
|
|
}
|
|
tf_ssb_release_db_writer(ssb, db);
|
|
}
|