def perform_secure_deletion_of_files(self):
files_to_delete = yield self.get_files_to_secure_delete()
for file_to_delete in files_to_delete:
self.start_time = time.time()
log.debug("Starting secure delete of file %s" % file_to_delete)
overwrite_and_remove(file_to_delete)
yield self.commit_file_deletion(file_to_delete)
current_run_time = time.time() - self.start_time
log.debug("Ending secure delete of file %s (execution time: %.2f)" % (file_to_delete, current_run_time))
def perform_secure_deletion_of_files(self):
files_to_delete = self.get_files_to_secure_delete()
for file_to_delete in files_to_delete:
self.start_time = time.time()
log.debug("Starting secure delete of file %s" % file_to_delete)
overwrite_and_remove(file_to_delete)
self.commit_file_deletion(file_to_delete)
current_run_time = time.time() - self.start_time
log.debug("Ending secure delete of file %s (execution time: %.2f)" % (file_to_delete, current_run_time))
def sync_clean_untracked_files(store):
"""
removes files in GLSettings.submission_path that are not
tracked by InternalFile/ReceiverFile.
"""
tracked_files = db_get_tracked_files(store)
for filesystem_file in os.listdir(GLSettings.submission_path):
if filesystem_file not in tracked_files:
file_to_remove = os.path.join(GLSettings.submission_path, filesystem_file)
try:
log.debug("Removing untracked file: %s", file_to_remove)
security.overwrite_and_remove(file_to_remove)
except OSError:
log.err("Failed to remove untracked file", file_to_remove)
def clean_untracked_files():
"""
removes files in GLSettings.submission_path that are not
tracked by InternalFile/ReceiverFile.
"""
tracked_files = yield get_tracked_files()
for filesystem_file in os.listdir(GLSettings.submission_path):
if filesystem_file not in tracked_files:
file_to_remove = os.path.join(GLSettings.submission_path, filesystem_file)
try:
log.debug("Removing untracked file: %s" % file_to_remove)
security.overwrite_and_remove(file_to_remove)
except OSError:
log.err("Failed to remove untracked file" % file_to_remove)
def perform_schema_migration(version):
"""
@param version:
@return:
"""
to_delete_on_fail = []
to_delete_on_success = []
if version < FIRST_DATABASE_VERSION_SUPPORTED:
GLSettings.print_msg(
"Migrations from DB version lower than %d are no longer supported!"
% FIRST_DATABASE_VERSION_SUPPORTED)
quit()
tmpdir = os.path.abspath(os.path.join(GLSettings.db_path, 'tmp'))
orig_db_file = os.path.abspath(
os.path.join(GLSettings.db_path, 'glbackend-%d.db' % version))
final_db_file = os.path.abspath(
os.path.join(GLSettings.db_path, 'glbackend-%d.db' % DATABASE_VERSION))
shutil.rmtree(tmpdir, True)
os.mkdir(tmpdir)
shutil.copy2(orig_db_file, tmpdir)
new_db_file = None
try:
while version < DATABASE_VERSION:
old_db_file = os.path.abspath(
os.path.join(tmpdir, 'glbackend-%d.db' % version))
new_db_file = os.path.abspath(
os.path.join(tmpdir, 'glbackend-%d.db' % (version + 1)))
GLSettings.db_file = new_db_file
GLSettings.enable_input_length_checks = False
to_delete_on_fail.append(new_db_file)
to_delete_on_success.append(old_db_file)
GLSettings.print_msg("Updating DB from version %d to version %d" %
(version, version + 1))
store_old = Store(create_database('sqlite:' + old_db_file))
store_new = Store(create_database('sqlite:' + new_db_file))
# Here is instanced the migration script
MigrationModule = importlib.import_module(
"globaleaks.db.migrations.update_%d" % (version + 1))
migration_script = MigrationModule.MigrationScript(
migration_mapping, version, store_old, store_new)
GLSettings.print_msg("Migrating table:")
try:
try:
migration_script.prologue()
except Exception as exception:
GLSettings.print_msg(
"Failure while executing migration prologue: %s" %
exception)
raise exception
for model_name, _ in migration_mapping.iteritems():
if migration_script.model_from[
model_name] is not None and migration_script.model_to[
model_name] is not None:
try:
migration_script.migrate_model(model_name)
# Commit at every table migration in order to be able to detect
# the precise migration that may fail.
migration_script.commit()
except Exception as exception:
GLSettings.print_msg(
"Failure while migrating table %s: %s " %
(model_name, exception))
raise exception
try:
migration_script.epilogue()
migration_script.commit()
except Exception as exception:
GLSettings.print_msg(
"Failure while executing migration epilogue: %s " %
exception)
raise exception
finally:
# the database should be always closed before leaving the application
# in order to not keep leaking journal files.
migration_script.close()
GLSettings.print_msg("Migration stats:")
# we open a new db in order to verify integrity of the generated file
store_verify = Store(
create_database(GLSettings.make_db_uri(new_db_file)))
for model_name, _ in migration_mapping.iteritems():
if model_name == 'ApplicationData':
continue
if migration_script.model_from[
model_name] is not None and migration_script.model_to[
model_name] is not None:
count = store_verify.find(
migration_script.model_to[model_name]).count()
if migration_script.entries_count[model_name] != count:
if migration_script.fail_on_count_mismatch[model_name]:
raise AssertionError("Integrity check failed on count equality for table %s: %d != %d" % \
(model_name, count, migration_script.entries_count[model_name]))
else:
GLSettings.print_msg(" * %s table migrated (entries count changed from %d to %d)" % \
(model_name, migration_script.entries_count[model_name], count))
else:
GLSettings.print_msg(" * %s table migrated (%d entry(s))" % \
(model_name, migration_script.entries_count[model_name]))
version += 1
store_verify.close()
perform_data_update(new_db_file)
except Exception as exception:
# simply propagate the exception
raise exception
else:
# in case of success first copy the new migrated db, then as last action delete the original db file
shutil.copy(new_db_file, final_db_file)
security.overwrite_and_remove(orig_db_file)
finally:
# Always cleanup the temporary directory used for the migration
for f in os.listdir(tmpdir):
tmp_db_file = os.path.join(tmpdir, f)
security.overwrite_and_remove(tmp_db_file)
shutil.rmtree(tmpdir)
def perform_schema_migration(version):
"""
@param version:
@return:
"""
to_delete_on_fail = []
to_delete_on_success = []
if version < FIRST_DATABASE_VERSION_SUPPORTED:
GLSettings.print_msg("Migrations from DB version lower than %d are no longer supported!" % FIRST_DATABASE_VERSION_SUPPORTED)
quit()
tmpdir = os.path.abspath(os.path.join(GLSettings.db_path, 'tmp'))
orig_db_file = os.path.abspath(os.path.join(GLSettings.db_path, 'glbackend-%d.db' % version))
final_db_file = os.path.abspath(os.path.join(GLSettings.db_path, 'glbackend-%d.db' % DATABASE_VERSION))
shutil.rmtree(tmpdir, True)
os.mkdir(tmpdir)
shutil.copy2(orig_db_file, tmpdir)
new_db_file = None
try:
while version < DATABASE_VERSION:
old_db_file = os.path.abspath(os.path.join(tmpdir, 'glbackend-%d.db' % version))
new_db_file = os.path.abspath(os.path.join(tmpdir, 'glbackend-%d.db' % (version + 1)))
GLSettings.db_file = new_db_file
GLSettings.enable_input_length_checks = False
to_delete_on_fail.append(new_db_file)
to_delete_on_success.append(old_db_file)
GLSettings.print_msg("Updating DB from version %d to version %d" % (version, version + 1))
store_old = Store(create_database('sqlite:' + old_db_file))
store_new = Store(create_database('sqlite:' + new_db_file))
# Here is instanced the migration script
MigrationModule = importlib.import_module("globaleaks.db.migrations.update_%d" % (version + 1))
migration_script = MigrationModule.MigrationScript(migration_mapping, version, store_old, store_new)
GLSettings.print_msg("Migrating table:")
try:
try:
migration_script.prologue()
except Exception as exception:
GLSettings.print_msg("Failure while executing migration prologue: %s" % exception)
raise exception
for model_name, _ in migration_mapping.iteritems():
if migration_script.model_from[model_name] is not None and migration_script.model_to[model_name] is not None:
try:
migration_script.migrate_model(model_name)
# Commit at every table migration in order to be able to detect
# the precise migration that may fail.
migration_script.commit()
except Exception as exception:
GLSettings.print_msg("Failure while migrating table %s: %s " % (model_name, exception))
raise exception
try:
migration_script.epilogue()
migration_script.commit()
except Exception as exception:
GLSettings.print_msg("Failure while executing migration epilogue: %s " % exception)
raise exception
finally:
# the database should be always closed before leaving the application
# in order to not keep leaking journal files.
migration_script.close()
GLSettings.print_msg("Migration stats:")
# we open a new db in order to verify integrity of the generated file
store_verify = Store(create_database(GLSettings.make_db_uri(new_db_file)))
for model_name, _ in migration_mapping.iteritems():
if model_name == 'ApplicationData':
continue
if migration_script.model_from[model_name] is not None and migration_script.model_to[model_name] is not None:
count = store_verify.find(migration_script.model_to[model_name]).count()
if migration_script.entries_count[model_name] != count:
if migration_script.fail_on_count_mismatch[model_name]:
raise AssertionError("Integrity check failed on count equality for table %s: %d != %d" % \
(model_name, count, migration_script.entries_count[model_name]))
else:
GLSettings.print_msg(" * %s table migrated (entries count changed from %d to %d)" % \
(model_name, migration_script.entries_count[model_name], count))
else:
GLSettings.print_msg(" * %s table migrated (%d entry(s))" % \
(model_name, migration_script.entries_count[model_name]))
version += 1
store_verify.close()
perform_data_update(new_db_file)
except Exception as exception:
GLSettings.print_msg("[FATAL]: ", exception)
raise exception
else:
# in case of success first copy the new migrated db, then as last action delete the original db file
shutil.copy(new_db_file, final_db_file)
security.overwrite_and_remove(orig_db_file)
finally:
# Always cleanup the temporary directory used for the migration
for f in os.listdir(tmpdir):
tmp_db_file = os.path.join(tmpdir, f)
security.overwrite_and_remove(tmp_db_file)
shutil.rmtree(tmpdir)
def perform_secure_deletion_of_files(self):
files_to_delete = self.get_files_to_secure_delete()
for file_to_delete in files_to_delete:
overwrite_and_remove(file_to_delete)
self.commit_file_deletion(file_to_delete)