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-rw-r--r--client/src/leap/soledad/client/_blobs.py61
1 files changed, 48 insertions, 13 deletions
diff --git a/client/src/leap/soledad/client/_blobs.py b/client/src/leap/soledad/client/_blobs.py
index f41f3cf4..ec836123 100644
--- a/client/src/leap/soledad/client/_blobs.py
+++ b/client/src/leap/soledad/client/_blobs.py
@@ -27,15 +27,50 @@ from _crypto import DocInfo, BlobEncryptor, BlobDecryptor
logger = Logger()
-class _ConnectionPool(adbapi.ConnectionPool):
+class ConnectionPool(adbapi.ConnectionPool):
- def blob(self, table, column, key, value):
- conn = self.connectionFactory(self)
- # XXX FIXME what are these values???
- # shouldn't I pass the doc_id key?? Why is it asking for an integer???
- blob = conn.blob(table, column, 1, 1)
- print "GOT BLOB", blob
- return blob
+ def insertAndGetLastRowid(self, *args, **kwargs):
+ """
+ Execute an SQL query and return the last rowid.
+
+ See: https://sqlite.org/c3ref/last_insert_rowid.html
+ """
+ return self.runInteraction(
+ self._insertAndGetLastRowid, *args, **kwargs)
+
+ def _insertAndGetLastRowid(self, trans, *args, **kw):
+ trans.execute(*args, **kw)
+ return trans.lastrowid
+
+ def blob(self, table, column, irow, flags):
+ """
+ Open a BLOB for incremental I/O.
+
+ Return a handle to the BLOB that would be selected by:
+
+ SELECT column FROM table WHERE rowid = irow;
+
+ See: https://sqlite.org/c3ref/blob_open.html
+
+ :param table: The table in which to lookup the blob.
+ :type table: str
+ :param column: The column where the BLOB is located.
+ :type column: str
+ :param rowid: The rowid of the BLOB.
+ :type rowid: int
+ :param flags: If zero, BLOB is opened for read-only. If non-zero,
+ BLOB is opened for RW.
+ :type flags: int
+
+ :return: A BLOB handle.
+ :rtype: pysqlcipher.dbapi.Blob
+ """
+ return self.runInteraction(self._blob, table, column, irow, flags)
+
+ def _blob(self, trans, table, column, irow, flags):
+ # TODO: should not use transaction private variable here
+ handle = trans._connection.blob(table, column, irow, flags)
+ return handle
class DecrypterBuffer(object):
@@ -160,15 +195,15 @@ class SQLiteBlobBackend(object):
pragmafun = partial(pragmas.set_init_pragmas, opts=opts)
openfun = _sqlcipherInitFactory(pragmafun)
- self.dbpool = _ConnectionPool(
+ self.dbpool = ConnectionPool(
backend, self.path, check_same_thread=False, timeout=5,
cp_openfun=openfun, cp_min=1, cp_max=2, cp_name='blob_pool')
@defer.inlineCallbacks
def put(self, blob_id, blob_fd, size=None):
- insert = str('INSERT INTO blobs VALUES (?, zeroblob(?))')
- yield self.dbpool.runQuery(insert, (blob_id, size))
- dbblob = self.dbpool.blob('blobs', 'payload', 'blob_id', blob_id)
+ insert = 'INSERT INTO blobs (blob_id, payload) VALUES (?, zeroblob(?))'
+ irow = yield self.dbpool.insertAndGetLastRowid(insert, (blob_id, size))
+ handle = yield self.dbpool.blob('blobs', 'payload', irow, 1)
blob_fd.seek(0)
# XXX I have to copy the buffer here so that I'm able to
# return a non-closed file to the caller (blobmanager.get)
@@ -176,7 +211,7 @@ class SQLiteBlobBackend(object):
# have a look at how treq does cope with closing the handle
# for uploading a file
producer = FileBodyProducer(copy(blob_fd))
- done = yield producer.startProducing(dbblob)
+ done = yield producer.startProducing(handle)
defer.returnValue(done)
@defer.inlineCallbacks