func (sh *Handler) serveSignerAttrValue(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
signer := httputil.MustGetBlobRef(req, "signer")
attr := httputil.MustGet(req, "attr")
value := httputil.MustGet(req, "value")
pn, err := sh.index.PermanodeOfSignerAttrValue(signer, attr, value)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
dr := sh.NewDescribeRequest()
dr.Describe(pn, 2)
metaMap, err := dr.metaMap()
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, &SignerAttrValueResponse{
Permanode: pn,
Meta: metaMap,
})
}
func (sh *Handler) serveClaims(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var cr ClaimsRequest
cr.fromHTTP(req)
res, err := sh.GetClaims(&cr)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, res)
}
// servePermanodesWithAttr uses the indexer to search for the permanodes matching
// the request.
// The valid values for the "attr" key in the request (i.e the only attributes
// for a permanode which are actually indexed as such) are "tag" and "title".
func (sh *Handler) servePermanodesWithAttr(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var wr WithAttrRequest
wr.fromHTTP(req)
res, err := sh.GetPermanodesWithAttr(&wr)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, res)
}
func (sh *Handler) serveRecentPermanodes(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var rr RecentRequest
rr.fromHTTP(req)
res, err := sh.GetRecentPermanodes(&rr)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, res)
}
// Unlike the index interface's EdgesTo method, the "edgesto" Handler
// here additionally filters out since-deleted permanode edges.
func (sh *Handler) serveEdgesTo(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var er EdgesRequest
er.fromHTTP(req)
res, err := sh.EdgesTo(&er)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, res)
}
func (sh *Handler) serveSignerPaths(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var sr SignerPathsRequest
sr.fromHTTP(req)
res, err := sh.GetSignerPaths(&sr)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, res)
}
func (sh *Handler) serveDescribe(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var dr DescribeRequest
dr.fromHTTP(req)
res, err := sh.Describe(&dr)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, res)
}
func (sh *Handler) serveDescribe(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
br := httputil.MustGetBlobRef(req, "blobref")
dr := sh.NewDescribeRequest()
dr.Describe(br, 4)
metaMap, err := dr.metaMapThumbs(thumbnailSize(req))
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, &DescribeResponse{metaMap})
}
func (sh *Handler) serveQuery(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var sq SearchQuery
if err := sq.fromHTTP(req); err != nil {
httputil.ServeJSONError(rw, err)
return
}
sr, err := sh.Query(&sq)
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, sr)
}
func (sh *Handler) serveDescribe(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
var dr DescribeRequest
dr.fromHTTP(req)
sh.initDescribeRequest(&dr)
if dr.BlobRef.Valid() {
dr.Describe(dr.BlobRef, dr.depth())
}
for _, br := range dr.BlobRefs {
dr.Describe(br, dr.depth())
}
metaMap, err := dr.metaMapThumbs(thumbnailSize(req))
if err != nil {
httputil.ServeJSONError(rw, err)
return
}
httputil.ReturnJSON(rw, &DescribeResponse{metaMap})
}
// Unlike the index interface's EdgesTo method, the "edgesto" Handler
// here additionally filters out since-deleted permanode edges.
func (sh *Handler) serveEdgesTo(rw http.ResponseWriter, req *http.Request) {
defer httputil.RecoverJSON(rw, req)
ret := jsonMap()
toRef := httputil.MustGetBlobRef(req, "blobref")
toRefStr := toRef.String()
blobInfo := jsonMap()
ret[toRefStr] = blobInfo
jsonEdges := jsonMapList()
edges, err := sh.index.EdgesTo(toRef, nil)
if err != nil {
panic(err)
}
type mapOrError struct {
m map[string]interface{} // nil if no map
err error
}
resc := make(chan mapOrError)
verify := func(edge *Edge) {
fromStr := edge.From.String()
db, err := sh.NewDescribeRequest().DescribeSync(edge.From)
if err != nil {
resc <- mapOrError{err: err}
return
}
found := false
if db.Permanode != nil {
for attr, vv := range db.Permanode.Attr {
if IsBlobReferenceAttribute(attr) {
for _, v := range vv {
if v == toRefStr {
found = true
}
}
}
}
}
var em map[string]interface{}
if found {
em = jsonMap()
em["from"] = fromStr
em["fromType"] = "permanode"
}
resc <- mapOrError{m: em}
}
verifying := 0
for _, edge := range edges {
if edge.FromType == "permanode" {
verifying++
go verify(edge)
continue
}
em := jsonMap()
em["from"] = edge.From.String()
em["fromType"] = edge.FromType
jsonEdges = append(jsonEdges, em)
}
for i := 0; i < verifying; i++ {
res := <-resc
if res.err != nil {
panic(res.err) // caught and put in JSON response
}
if res.m != nil {
jsonEdges = append(jsonEdges, res.m)
}
}
blobInfo["edgesTo"] = jsonEdges
httputil.ReturnJSON(rw, ret)
}