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Improve search attribute extraction #321

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merged 2 commits into from
Aug 15, 2021
Merged

Improve search attribute extraction #321

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20922c5
Refactor search attribute extraction
Aug 15, 2021
984f5b4
Merge branch 'master' into feature/attribute-perfomance
johnweldon Aug 15, 2021
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37 changes: 27 additions & 10 deletions search.go
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Original file line number Diff line number Diff line change
Expand Up @@ -376,16 +376,9 @@ func (l *Conn) Search(searchRequest *SearchRequest) (*SearchResult, error) {

switch packet.Children[1].Tag {
case 4:
entry := new(Entry)
entry.DN = packet.Children[1].Children[0].Value.(string)
for _, child := range packet.Children[1].Children[1].Children {
attr := new(EntryAttribute)
attr.Name = child.Children[0].Value.(string)
for _, value := range child.Children[1].Children {
attr.Values = append(attr.Values, value.Value.(string))
attr.ByteValues = append(attr.ByteValues, value.ByteValue)
}
entry.Attributes = append(entry.Attributes, attr)
entry := &Entry{
DN: packet.Children[1].Children[0].Value.(string),
Attributes: unpackAttributes(packet.Children[1].Children[1].Children),
}
result.Entries = append(result.Entries, entry)
case 5:
Expand All @@ -408,3 +401,27 @@ func (l *Conn) Search(searchRequest *SearchRequest) (*SearchResult, error) {
}
}
}

// unpackAttributes will extract all given LDAP attributes and it's values
// from the ber.Packet
func unpackAttributes(children []*ber.Packet) []*EntryAttribute {
entries := make([]*EntryAttribute, len(children))
for i, child := range children {
length := len(child.Children[1].Children)
entry := &EntryAttribute{
Name: child.Children[0].Value.(string),
// pre-allocate the slice since we can determine
// the number of attributes at this point
Values: make([]string, length),
ByteValues: make([][]byte, length),
}

for i, value := range child.Children[1].Children {
entry.ByteValues[i] = value.ByteValue
entry.Values[i] = value.Value.(string)
}
entries[i] = entry
}

return entries
}
37 changes: 27 additions & 10 deletions v3/search.go
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Original file line number Diff line number Diff line change
Expand Up @@ -376,16 +376,9 @@ func (l *Conn) Search(searchRequest *SearchRequest) (*SearchResult, error) {

switch packet.Children[1].Tag {
case 4:
entry := new(Entry)
entry.DN = packet.Children[1].Children[0].Value.(string)
for _, child := range packet.Children[1].Children[1].Children {
attr := new(EntryAttribute)
attr.Name = child.Children[0].Value.(string)
for _, value := range child.Children[1].Children {
attr.Values = append(attr.Values, value.Value.(string))
attr.ByteValues = append(attr.ByteValues, value.ByteValue)
}
entry.Attributes = append(entry.Attributes, attr)
entry := &Entry{
DN: packet.Children[1].Children[0].Value.(string),
Attributes: unpackAttributes(packet.Children[1].Children[1].Children),
}
result.Entries = append(result.Entries, entry)
case 5:
Expand All @@ -408,3 +401,27 @@ func (l *Conn) Search(searchRequest *SearchRequest) (*SearchResult, error) {
}
}
}

// unpackAttributes will extract all given LDAP attributes and it's values
// from the ber.Packet
func unpackAttributes(children []*ber.Packet) []*EntryAttribute {
entries := make([]*EntryAttribute, len(children))
for i, child := range children {
length := len(child.Children[1].Children)
entry := &EntryAttribute{
Name: child.Children[0].Value.(string),
// pre-allocate the slice since we can determine
// the number of attributes at this point
Values: make([]string, length),
ByteValues: make([][]byte, length),
}

for i, value := range child.Children[1].Children {
entry.ByteValues[i] = value.ByteValue
entry.Values[i] = value.Value.(string)
}
entries[i] = entry
}

return entries
}