70 lines
1.8 KiB
Go
70 lines
1.8 KiB
Go
package jws
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/lestrrat-go/iter/mapiter"
|
|
"github.com/lestrrat-go/jwx/internal/iter"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
// Iterate returns a channel that successively returns all the
|
|
// header name and values.
|
|
func (h *stdHeaders) Iterate(ctx context.Context) Iterator {
|
|
pairs := h.makePairs()
|
|
ch := make(chan *HeaderPair, len(pairs))
|
|
go func(ctx context.Context, ch chan *HeaderPair, pairs []*HeaderPair) {
|
|
defer close(ch)
|
|
for _, pair := range pairs {
|
|
select {
|
|
case <-ctx.Done():
|
|
return
|
|
case ch <- pair:
|
|
}
|
|
}
|
|
}(ctx, ch, pairs)
|
|
return mapiter.New(ch)
|
|
}
|
|
|
|
func (h *stdHeaders) Walk(ctx context.Context, visitor Visitor) error {
|
|
return iter.WalkMap(ctx, h, visitor)
|
|
}
|
|
|
|
func (h *stdHeaders) AsMap(ctx context.Context) (map[string]interface{}, error) {
|
|
return iter.AsMap(ctx, h)
|
|
}
|
|
|
|
func (h *stdHeaders) Copy(ctx context.Context, dst Headers) error {
|
|
for iter := h.Iterate(ctx); iter.Next(ctx); {
|
|
pair := iter.Pair()
|
|
if err := dst.Set(pair.Key.(string), pair.Value); err != nil {
|
|
return errors.Wrapf(err, `failed to set header`)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// mergeHeaders merges two headers, and works even if the first Header
|
|
// object is nil. This is not exported because ATM it felt like this
|
|
// function is not frequently used, and MergeHeaders seemed a clunky name
|
|
func mergeHeaders(ctx context.Context, h1, h2 Headers) (Headers, error) {
|
|
h3 := NewHeaders()
|
|
|
|
if h1 != nil {
|
|
if err := h1.Copy(ctx, h3); err != nil {
|
|
return nil, errors.Wrap(err, `failed to copy headers from first Header`)
|
|
}
|
|
}
|
|
|
|
if h2 != nil {
|
|
if err := h2.Copy(ctx, h3); err != nil {
|
|
return nil, errors.Wrap(err, `failed to copy headers from second Header`)
|
|
}
|
|
}
|
|
|
|
return h3, nil
|
|
}
|
|
|
|
func (h *stdHeaders) Merge(ctx context.Context, h2 Headers) (Headers, error) {
|
|
return mergeHeaders(ctx, h, h2)
|
|
}
|