forked from LBRYCommunity/lbry-sdk
307 lines
12 KiB
Python
307 lines
12 KiB
Python
import sqlite3
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import unqlite
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import leveldb
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import shutil
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import os
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import logging
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import json
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log = logging.getLogger(__name__)
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known_dbs = ['lbryfile_desc.db', 'lbryfiles.db', 'valuable_blobs.db', 'blobs.db',
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'lbryfile_blob.db', 'lbryfile_info.db', 'settings.db', 'blind_settings.db',
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'blind_peers.db', 'blind_info.db', 'lbryfile_info.db', 'lbryfile_manager.db',
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'live_stream.db', 'stream_info.db', 'stream_blob.db', 'stream_desc.db']
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def do_move(from_dir, to_dir):
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for known_db in known_dbs:
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known_db_path = os.path.join(from_dir, known_db)
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if os.path.exists(known_db_path):
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log.debug("Moving %s to %s",
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os.path.abspath(known_db_path),
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os.path.abspath(os.path.join(to_dir, known_db)))
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shutil.move(known_db_path, os.path.join(to_dir, known_db))
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else:
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log.debug("Did not find %s", os.path.abspath(known_db_path))
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def do_migration(db_dir):
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old_dir = os.path.join(db_dir, "_0_to_1_old")
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new_dir = os.path.join(db_dir, "_0_to_1_new")
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try:
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log.info("Moving dbs from the real directory to %s", os.path.abspath(old_dir))
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os.makedirs(old_dir)
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do_move(db_dir, old_dir)
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except:
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log.error("An error occurred moving the old db files.")
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raise
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try:
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log.info("Creating the new directory in %s", os.path.abspath(new_dir))
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os.makedirs(new_dir)
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except:
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log.error("An error occurred creating the new directory.")
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raise
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try:
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log.info("Doing the migration")
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migrate_blob_db(old_dir, new_dir)
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migrate_lbryfile_db(old_dir, new_dir)
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migrate_livestream_db(old_dir, new_dir)
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migrate_ptc_db(old_dir, new_dir)
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migrate_lbryfile_manager_db(old_dir, new_dir)
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migrate_settings_db(old_dir, new_dir)
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migrate_repeater_db(old_dir, new_dir)
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log.info("Migration succeeded")
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except:
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log.error("An error occurred during the migration. Restoring.")
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do_move(old_dir, db_dir)
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raise
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try:
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log.info("Moving dbs in the new directory to the real directory")
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do_move(new_dir, db_dir)
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db_revision = open(os.path.join(db_dir, 'db_revision'), mode='w+')
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db_revision.write("1")
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db_revision.close()
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os.rmdir(new_dir)
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except:
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log.error("An error occurred moving the new db files.")
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raise
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return old_dir
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def migrate_blob_db(old_db_dir, new_db_dir):
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old_blob_db_path = os.path.join(old_db_dir, "blobs.db")
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if not os.path.exists(old_blob_db_path):
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return True
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old_db = leveldb.LevelDB(old_blob_db_path)
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new_db_conn = sqlite3.connect(os.path.join(new_db_dir, "blobs.db"))
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c = new_db_conn.cursor()
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c.execute("create table if not exists blobs (" +
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" blob_hash text primary key, " +
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" blob_length integer, " +
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" last_verified_time real, " +
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" next_announce_time real"
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")")
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new_db_conn.commit()
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c = new_db_conn.cursor()
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for blob_hash, blob_info in old_db.RangeIter():
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blob_length, verified_time, announce_time = json.loads(blob_info)
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c.execute("insert into blobs values (?, ?, ?, ?)",
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(blob_hash, blob_length, verified_time, announce_time))
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new_db_conn.commit()
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new_db_conn.close()
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def migrate_lbryfile_db(old_db_dir, new_db_dir):
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old_lbryfile_db_path = os.path.join(old_db_dir, "lbryfiles.db")
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if not os.path.exists(old_lbryfile_db_path):
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return True
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stream_info_db = leveldb.LevelDB(os.path.join(old_db_dir, "lbryfile_info.db"))
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stream_blob_db = leveldb.LevelDB(os.path.join(old_db_dir, "lbryfile_blob.db"))
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stream_desc_db = leveldb.LevelDB(os.path.join(old_db_dir, "lbryfile_desc.db"))
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db_conn = sqlite3.connect(os.path.join(new_db_dir, "lbryfile_info.db"))
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c = db_conn.cursor()
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c.execute("create table if not exists lbry_files (" +
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" stream_hash text primary key, " +
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" key text, " +
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" stream_name text, " +
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" suggested_file_name text" +
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")")
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c.execute("create table if not exists lbry_file_blobs (" +
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" blob_hash text, " +
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" stream_hash text, " +
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" position integer, " +
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" iv text, " +
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" length integer, " +
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" foreign key(stream_hash) references lbry_files(stream_hash)" +
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")")
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c.execute("create table if not exists lbry_file_descriptors (" +
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" sd_blob_hash TEXT PRIMARY KEY, " +
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" stream_hash TEXT, " +
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" foreign key(stream_hash) references lbry_files(stream_hash)" +
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")")
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db_conn.commit()
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c = db_conn.cursor()
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for stream_hash, stream_info in stream_info_db.RangeIter():
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key, name, suggested_file_name = json.loads(stream_info)
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c.execute("insert into lbry_files values (?, ?, ?, ?)",
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(stream_hash, key, name, suggested_file_name))
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db_conn.commit()
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c = db_conn.cursor()
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for blob_hash_stream_hash, blob_info in stream_blob_db.RangeIter():
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b_h, s_h = json.loads(blob_hash_stream_hash)
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position, iv, length = json.loads(blob_info)
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c.execute("insert into lbry_file_blobs values (?, ?, ?, ?, ?)",
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(b_h, s_h, position, iv, length))
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db_conn.commit()
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c = db_conn.cursor()
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for sd_blob_hash, stream_hash in stream_desc_db.RangeIter():
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c.execute("insert into lbry_file_descriptors values (?, ?)",
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(sd_blob_hash, stream_hash))
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db_conn.commit()
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db_conn.close()
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def migrate_livestream_db(old_db_dir, new_db_dir):
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old_db_path = os.path.join(old_db_dir, "stream_info.db")
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if not os.path.exists(old_db_path):
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return True
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stream_info_db = leveldb.LevelDB(os.path.join(old_db_dir, "stream_info.db"))
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stream_blob_db = leveldb.LevelDB(os.path.join(old_db_dir, "stream_blob.db"))
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stream_desc_db = leveldb.LevelDB(os.path.join(old_db_dir, "stream_desc.db"))
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db_conn = sqlite3.connect(os.path.join(new_db_dir, "live_stream.db"))
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c = db_conn.cursor()
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c.execute("create table if not exists live_streams (" +
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" stream_hash text primary key, " +
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" public_key text, " +
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" key text, " +
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" stream_name text, " +
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" next_announce_time real" +
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")")
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c.execute("create table if not exists live_stream_blobs (" +
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" blob_hash text, " +
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" stream_hash text, " +
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" position integer, " +
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" revision integer, " +
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" iv text, " +
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" length integer, " +
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" signature text, " +
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" foreign key(stream_hash) references live_streams(stream_hash)" +
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")")
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c.execute("create table if not exists live_stream_descriptors (" +
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" sd_blob_hash TEXT PRIMARY KEY, " +
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" stream_hash TEXT, " +
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" foreign key(stream_hash) references live_streams(stream_hash)" +
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")")
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db_conn.commit()
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c = db_conn.cursor()
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for stream_hash, stream_info in stream_info_db.RangeIter():
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public_key, key, name, next_announce_time = json.loads(stream_info)
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c.execute("insert into live_streams values (?, ?, ?, ?, ?)",
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(stream_hash, public_key, key, name, next_announce_time))
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db_conn.commit()
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c = db_conn.cursor()
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for blob_hash_stream_hash, blob_info in stream_blob_db.RangeIter():
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b_h, s_h = json.loads(blob_hash_stream_hash)
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position, revision, iv, length, signature = json.loads(blob_info)
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c.execute("insert into live_stream_blobs values (?, ?, ?, ?, ?, ?, ?)",
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(b_h, s_h, position, revision, iv, length, signature))
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db_conn.commit()
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c = db_conn.cursor()
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for sd_blob_hash, stream_hash in stream_desc_db.RangeIter():
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c.execute("insert into live_stream_descriptors values (?, ?)",
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(sd_blob_hash, stream_hash))
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db_conn.commit()
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db_conn.close()
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def migrate_ptc_db(old_db_dir, new_db_dir):
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old_db_path = os.path.join(old_db_dir, "ptcwallet.db")
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if not os.path.exists(old_db_path):
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return True
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old_db = leveldb.LevelDB(old_db_path)
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try:
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p_key = old_db.Get("private_key")
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new_db = unqlite.UnQLite(os.path.join(new_db_dir, "ptcwallet.db"))
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new_db['private_key'] = p_key
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except KeyError:
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pass
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def migrate_lbryfile_manager_db(old_db_dir, new_db_dir):
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old_db_path = os.path.join(old_db_dir, "lbryfiles.db")
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if not os.path.exists(old_db_path):
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return True
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old_db = leveldb.LevelDB(old_db_path)
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new_db = sqlite3.connect(os.path.join(new_db_dir, "lbryfile_info.db"))
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c = new_db.cursor()
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c.execute("create table if not exists lbry_file_options (" +
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" blob_data_rate real, " +
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" status text," +
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" stream_hash text,"
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" foreign key(stream_hash) references lbry_files(stream_hash)" +
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")")
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new_db.commit()
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LBRYFILE_STATUS = "t"
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LBRYFILE_OPTIONS = "o"
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c = new_db.cursor()
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for k, v in old_db.RangeIter():
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key_type, stream_hash = json.loads(k)
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if key_type == LBRYFILE_STATUS:
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try:
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rate = json.loads(old_db.Get(json.dumps((LBRYFILE_OPTIONS, stream_hash))))[0]
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except KeyError:
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rate = None
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c.execute("insert into lbry_file_options values (?, ?, ?)",
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(rate, v, stream_hash))
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new_db.commit()
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new_db.close()
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def migrate_settings_db(old_db_dir, new_db_dir):
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old_settings_db_path = os.path.join(old_db_dir, "settings.db")
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if not os.path.exists(old_settings_db_path):
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return True
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old_db = leveldb.LevelDB(old_settings_db_path)
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new_db = unqlite.UnQLite(os.path.join(new_db_dir, "settings.db"))
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for k, v in old_db.RangeIter():
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new_db[k] = v
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def migrate_repeater_db(old_db_dir, new_db_dir):
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old_repeater_db_path = os.path.join(old_db_dir, "valuable_blobs.db")
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if not os.path.exists(old_repeater_db_path):
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return True
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old_db = leveldb.LevelDB(old_repeater_db_path)
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info_db = sqlite3.connect(os.path.join(new_db_dir, "blind_info.db"))
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peer_db = sqlite3.connect(os.path.join(new_db_dir, "blind_peers.db"))
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unql_db = unqlite.UnQLite(os.path.join(new_db_dir, "blind_settings.db"))
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BLOB_INFO_TYPE = 'b'
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SETTING_TYPE = 's'
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PEER_TYPE = 'p'
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info_c = info_db.cursor()
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info_c.execute("create table if not exists valuable_blobs (" +
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" blob_hash text primary key, " +
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" blob_length integer, " +
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" reference text, " +
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" peer_host text, " +
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" peer_port integer, " +
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" peer_score text" +
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")")
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info_db.commit()
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peer_c = peer_db.cursor()
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peer_c.execute("create table if not exists approved_peers (" +
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" ip_address text, " +
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" port integer" +
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")")
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peer_db.commit()
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info_c = info_db.cursor()
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peer_c = peer_db.cursor()
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for k, v in old_db.RangeIter():
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key_type, key_rest = json.loads(k)
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if key_type == PEER_TYPE:
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host, port = key_rest
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peer_c.execute("insert into approved_peers values (?, ?)",
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(host, port))
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elif key_type == SETTING_TYPE:
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unql_db[key_rest] = v
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elif key_type == BLOB_INFO_TYPE:
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blob_hash = key_rest
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length, reference, peer_host, peer_port, peer_score = json.loads(v)
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info_c.execute("insert into valuable_blobs values (?, ?, ?, ?, ?, ?)",
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(blob_hash, length, reference, peer_host, peer_port, peer_score))
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info_db.commit()
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peer_db.commit()
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info_db.close()
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peer_db.close() |