func (c *Connection) Serve() {
for {
r := c.conn.Next()
c.conn.StartRequest(r)
s, e := c.conn.ReadLine()
if e != nil {
break
}
pbmatch := pullblock.FindStringSubmatch(s)
switch {
case s == "PUSHBLOCK":
_, e = io.ReadFull(c.conn.R, c.block1)
if e == nil {
bucket.StoreBlock(c.bck, c.block1)
}
c.conn.EndRequest(r)
go c.donothing(r)
case pbmatch != nil:
key, e := base64.URLEncoding.DecodeString(pbmatch[1])
c.conn.EndRequest(r)
if e != nil {
go c.sendLine(r, 901, "base64 error")
} else {
go c.sendBlock(r, key)
}
default:
c.conn.EndRequest(r)
go c.sendLine(r, 909, "command error")
}
}
// println("close Connection")
c.conn.Close()
}
// block1 should be already initialized
func GenerateTupleFromBlock(block1, block2 []byte, rand io.Reader, bck bucket.Bucket, tupleSize int) (tuple [][]byte, e error) {
tuple = make([][]byte, tupleSize)
for i := 1; i < tupleSize; i++ {
e = blockutil.RandomBlock(rand, block2)
if e != nil {
return
}
tuple[i], e = bucket.StoreBlock(bck, block2)
if e != nil {
return
}
blockutil.XorBlock(block1, block2) // block1 ^= block2
}
tuple[0], e = bucket.StoreBlock(bck, block1)
if e != nil {
return
}
return
}