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certspotter
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Tweak logic for storing tree position

This commit is contained in:
Andrew Ayer 2017-01-06 12:19:53 -08:00
parent 87c6bc4f1c
commit 0d9b81ecc8
2 changed files with 13 additions and 6 deletions
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5
auditing.go
View File

@ -154,6 +154,11 @@ func NewMerkleTreeBuilder (stack []ct.MerkleTreeNode, numLeaves uint64) (*Merkle
}
return &MerkleTreeBuilder{stack: stack, numLeaves: numLeaves}, nil
}
func CloneMerkleTreeBuilder (source *MerkleTreeBuilder) *MerkleTreeBuilder {
stack := make([]ct.MerkleTreeNode, len(source.stack))
copy(stack, source.stack)
return &MerkleTreeBuilder{stack: stack, numLeaves: source.numLeaves}
}
func (builder *MerkleTreeBuilder) Add(hash ct.MerkleTreeNode) {
builder.stack = append(builder.stack, hash)

10
cmd/common.go
View File

@ -226,8 +226,7 @@ func (ctlog *logHandle) scan (processCallback certspotter.ProcessCallback) error
endIndex := int64(ctlog.verifiedSTH.TreeSize)
if endIndex > startIndex {
treeBuilder := ctlog.position
ctlog.position = nil
treeBuilder := certspotter.CloneMerkleTreeBuilder(ctlog.position)
if err := ctlog.scanner.Scan(startIndex, endIndex, processCallback, treeBuilder); err != nil {
return fmt.Errorf("Error scanning log (if this error persists, it should be construed as misbehavior by the log): %s", err)
@ -239,11 +238,10 @@ func (ctlog *logHandle) scan (processCallback certspotter.ProcessCallback) error
}
ctlog.position = treeBuilder
}
if err := ctlog.state.StoreLogPosition(ctlog.position); err != nil {
return fmt.Errorf("Error storing log position: %s", err)
}
}
return nil
}
@ -291,6 +289,10 @@ func processLog(logInfo* certspotter.LogInfo, processCallback certspotter.Proces
log.Printf("New log; scanning all %d entries in the log", ctlog.verifiedSTH.TreeSize)
}
}
if err := ctlog.state.StoreLogPosition(ctlog.position); err != nil {
log.Printf("Error storing log position: %s\n", err)
return 1
}
if err := ctlog.scan(processCallback); err != nil {
log.Printf("%s\n", err)