/
block.go
72 lines (57 loc) · 1.28 KB
/
block.go
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package block
import (
"errors"
"github.com/zalando/skipper/filters"
)
var (
ErrClosed = errors.New("reader closed")
)
type blockSpec struct {
MaxMatcherBufferSize uint64
}
type block struct {
toblockList []toblockKeys
maxEditorBuffer uint64
maxBufferHandling maxBufferHandling
}
func NewBlockFilter(maxMatcherBufferSize uint64) filters.Spec {
return &blockSpec{
MaxMatcherBufferSize: maxMatcherBufferSize,
}
}
func (*blockSpec) Name() string {
return filters.BlockName
}
func (bs *blockSpec) CreateFilter(args []interface{}) (filters.Filter, error) {
if len(args) == 0 {
return nil, filters.ErrInvalidFilterParameters
}
sargs := make([]toblockKeys, 0, len(args))
for _, w := range args {
switch v := w.(type) {
case string:
sargs = append(sargs, toblockKeys{str: []byte(v)})
default:
return nil, filters.ErrInvalidFilterParameters
}
}
b := &block{
toblockList: sargs,
maxBufferHandling: maxBufferBestEffort,
maxEditorBuffer: bs.MaxMatcherBufferSize,
}
return *b, nil
}
func (b block) Request(ctx filters.FilterContext) {
req := ctx.Request()
if req.ContentLength == 0 {
return
}
req.Body = newMatcher(
req.Body,
b.toblockList,
b.maxEditorBuffer,
b.maxBufferHandling,
)
}
func (block) Response(filters.FilterContext) {}