49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
package chain
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import (
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"github.com/lbryio/lbcd/txscript"
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)
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// buildFilterBlocksWatchList constructs a watchlist used for matching against a
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// cfilter from a FilterBlocksRequest. The watchlist will be populated with all
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// external addresses, internal addresses, and outpoints contained in the
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// request.
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func buildFilterBlocksWatchList(req *FilterBlocksRequest) ([][]byte, error) {
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// Construct a watch list containing the script addresses of all
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// internal and external addresses that were requested, in addition to
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// the set of outpoints currently being watched.
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watchListSize := len(req.ExternalAddrs) +
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len(req.InternalAddrs) +
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len(req.WatchedOutPoints)
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watchList := make([][]byte, 0, watchListSize)
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for _, addr := range req.ExternalAddrs {
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p2shAddr, err := txscript.PayToAddrScript(addr)
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if err != nil {
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return nil, err
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}
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watchList = append(watchList, p2shAddr)
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}
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for _, addr := range req.InternalAddrs {
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p2shAddr, err := txscript.PayToAddrScript(addr)
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if err != nil {
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return nil, err
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}
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watchList = append(watchList, p2shAddr)
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}
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for _, addr := range req.WatchedOutPoints {
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addr, err := txscript.PayToAddrScript(addr)
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if err != nil {
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return nil, err
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}
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watchList = append(watchList, addr)
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}
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return watchList, nil
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}
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