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package primary
// This file implements external HTTP handler callbacks for primary nodes.
import (
"context"
"fmt"
"net/http"
"git.sigsum.org/log-go/internal/node/handler"
"git.sigsum.org/log-go/internal/requests"
"git.sigsum.org/sigsum-go/pkg/log"
)
func addLeaf(ctx context.Context, c handler.Config, w http.ResponseWriter, r *http.Request) (int, error) {
p := c.(Primary)
log.Debug("handling add-leaf request")
req, err := requests.LeafRequestFromHTTP(r, p.Config.ShardStart, ctx, p.DNS)
if err != nil {
return http.StatusBadRequest, err
}
sth := p.Stateman.ToCosignTreeHead()
sequenced, err := p.TrillianClient.AddLeaf(ctx, req, sth.TreeSize)
if err != nil {
return http.StatusInternalServerError, err
}
if sequenced {
return http.StatusOK, nil
} else {
return http.StatusAccepted, nil
}
}
func addCosignature(ctx context.Context, c handler.Config, w http.ResponseWriter, r *http.Request) (int, error) {
p := c.(Primary)
log.Debug("handling add-cosignature request")
req, err := requests.CosignatureRequestFromHTTP(r, p.Witnesses)
if err != nil {
return http.StatusBadRequest, err
}
vk := p.Witnesses[req.KeyHash]
if err := p.Stateman.AddCosignature(ctx, &vk, &req.Cosignature); err != nil {
return http.StatusBadRequest, err
}
return http.StatusOK, nil
}
func getTreeHeadToCosign(ctx context.Context, c handler.Config, w http.ResponseWriter, _ *http.Request) (int, error) {
p := c.(Primary)
log.Debug("handling get-tree-head-to-cosign request")
sth := p.Stateman.ToCosignTreeHead()
if err := sth.ToASCII(w); err != nil {
return http.StatusInternalServerError, err
}
return http.StatusOK, nil
}
func getTreeHeadCosigned(ctx context.Context, c handler.Config, w http.ResponseWriter, _ *http.Request) (int, error) {
p := c.(Primary)
log.Debug("handling get-tree-head-cosigned request")
cth, err := p.Stateman.CosignedTreeHead(ctx)
if err != nil {
return http.StatusInternalServerError, err
}
if err := cth.ToASCII(w); err != nil {
return http.StatusInternalServerError, err
}
return http.StatusOK, nil
}
func getConsistencyProof(ctx context.Context, c handler.Config, w http.ResponseWriter, r *http.Request) (int, error) {
p := c.(Primary)
log.Debug("handling get-consistency-proof request")
req, err := requests.ConsistencyProofRequestFromHTTP(r)
if err != nil {
return http.StatusBadRequest, err
}
curTree := p.Stateman.ToCosignTreeHead()
if req.NewSize > curTree.TreeHead.TreeSize {
return http.StatusBadRequest, fmt.Errorf("new_size outside of current tree")
}
proof, err := p.TrillianClient.GetConsistencyProof(ctx, req)
if err != nil {
return http.StatusInternalServerError, err
}
if err := proof.ToASCII(w); err != nil {
return http.StatusInternalServerError, err
}
return http.StatusOK, nil
}
func getInclusionProof(ctx context.Context, c handler.Config, w http.ResponseWriter, r *http.Request) (int, error) {
p := c.(Primary)
log.Debug("handling get-inclusion-proof request")
req, err := requests.InclusionProofRequestFromHTTP(r)
if err != nil {
return http.StatusBadRequest, err
}
curTree := p.Stateman.ToCosignTreeHead()
if req.TreeSize > curTree.TreeHead.TreeSize {
return http.StatusBadRequest, fmt.Errorf("tree_size outside of current tree")
}
proof, err := p.TrillianClient.GetInclusionProof(ctx, req)
if err != nil {
return http.StatusInternalServerError, err
}
if err := proof.ToASCII(w); err != nil {
return http.StatusInternalServerError, err
}
return http.StatusOK, nil
}
func getLeavesGeneral(ctx context.Context, c handler.Config, w http.ResponseWriter, r *http.Request, doLimitToCurrentTree bool) (int, error) {
p := c.(Primary)
log.Debug("handling get-leaves request")
req, err := requests.LeavesRequestFromHTTP(r, uint64(p.MaxRange))
if err != nil {
return http.StatusBadRequest, err
}
if doLimitToCurrentTree {
curTree := p.Stateman.ToCosignTreeHead()
if req.EndSize >= curTree.TreeHead.TreeSize {
return http.StatusBadRequest, fmt.Errorf("end_size outside of current tree")
}
}
leaves, err := p.TrillianClient.GetLeaves(ctx, req)
if err != nil {
return http.StatusInternalServerError, err
}
for _, leaf := range *leaves {
if err := leaf.ToASCII(w); err != nil {
return http.StatusInternalServerError, err
}
}
return http.StatusOK, nil
}
func getLeavesExternal(ctx context.Context, c handler.Config, w http.ResponseWriter, r *http.Request) (int, error) {
return getLeavesGeneral(ctx, c, w, r, true)
}
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