func PreAuthRequest(ctx context.Context) {
id := ctx.PathValue("id")
if p, err := preauth.Load(id); err != nil {
err_msg := "err:@preAuth load: " + err.Error()
logger.Error(err_msg)
responder.RespondWithError(ctx, 500, err_msg)
return
} else {
if n, err := node.LoadUnauth(p.NodeId); err == nil {
switch p.Type {
case "download":
filename := n.Id
if fn, has := p.Options["filename"]; has {
filename = fn
}
streamDownload(ctx, n, filename)
preauth.Delete(id)
return
default:
responder.RespondWithError(ctx, 500, "Preauthorization type not supported: "+p.Type)
}
} else {
err_msg := "err:@preAuth loadnode: " + err.Error()
logger.Error(err_msg)
responder.RespondWithError(ctx, 500, err_msg)
}
}
return
}
// GET, POST, PUT, DELETE: /node/{nid}/acl/
// GET is the only action implemented here.
func AclRequest(ctx context.Context) {
nid := ctx.PathValue("nid")
u, err := request.Authenticate(ctx.HttpRequest())
if err != nil && err.Error() != e.NoAuth {
request.AuthError(err, ctx)
return
}
// acl require auth even for public data
if u == nil {
responder.RespondWithError(ctx, http.StatusUnauthorized, e.NoAuth)
return
}
// Load node and handle user unauthorized
n, err := node.LoadUnauth(nid)
if err != nil {
if err.Error() == e.MongoDocNotFound {
responder.RespondWithError(ctx, http.StatusNotFound, "Node not found")
return
} else {
// In theory the db connection could be lost between
// checking user and load but seems unlikely.
err_msg := "Err@node_Read:LoadNode: " + err.Error()
logger.Error(err_msg)
responder.RespondWithError(ctx, http.StatusInternalServerError, err_msg)
return
}
}
// only the owner can view/edit acl's unless owner="" or owner=nil
// note: owner can only be empty when anonymous node creation is enabled in shock config.
if n.Acl.Owner != u.Uuid && n.Acl.Owner != "" {
err_msg := "Only the node owner can edit/view node ACL's"
logger.Error(err_msg)
responder.RespondWithError(ctx, http.StatusUnauthorized, err_msg)
return
}
if ctx.HttpRequest().Method == "GET" {
if u.Uuid == n.Acl.Owner || rights["read"] {
// this is pretty clumsy and I could have done it with a lot less code and cleaner
// in perl or js, but I am not so familiar with GO yet (it always hurts the first time)
// the return structure should probably not be a concatenated string, but rather a hash
// for each entry containing Username, Fullname and Uuid
// owner
cu, err := user.FindByUuid(n.Acl.Owner)
if err != nil {
responder.RespondWithError(ctx, http.StatusInternalServerError, "Err@Uuid_Resolve: "+err.Error())
return
} else {
n.Acl.Owner = cu.Username + "|" + cu.Uuid
}
// read
p1 := []string{}
for _, v := range n.Acl.Read {
cu, err := user.FindByUuid(v)
if err != nil {
responder.RespondWithError(ctx, http.StatusInternalServerError, "Err@Uuid_Resolve: "+err.Error())
return
} else {
p1 = append(p1, cu.Username + "|" + cu.Uuid)
}
}
n.Acl.Read = p1
// write
p2 := []string{}
for _, v := range n.Acl.Write {
cu, err := user.FindByUuid(v)
if err != nil {
responder.RespondWithError(ctx, http.StatusInternalServerError, "Err@Uuid_Resolve: "+err.Error())
return
} else {
p2 = append(p2, cu.Username + "|" + cu.Uuid)
}
}
n.Acl.Write = p2
// delete
p3 := []string{}
for _, v := range n.Acl.Delete {
cu, err := user.FindByUuid(v)
if err != nil {
responder.RespondWithError(ctx, http.StatusInternalServerError, "Err@Uuid_Resolve: "+err.Error())
return
} else {
p3 = append(p3, cu.Username + "|" + cu.Uuid)
}
}
n.Acl.Delete = p3
responder.RespondWithData(ctx, n.Acl)
} else {
responder.RespondWithError(ctx, http.StatusNotImplemented, "This request type is not implemented.")
}
return
}
// GET, POST, PUT, DELETE: /node/{nid}/acl/{type}
func AclTypedRequest(ctx context.Context) {
nid := ctx.PathValue("nid")
rtype := ctx.PathValue("type")
u, err := request.Authenticate(ctx.HttpRequest())
if err != nil && err.Error() != e.NoAuth {
request.AuthError(err, ctx)
return
}
if !validAclTypes[rtype] {
responder.RespondWithError(ctx, http.StatusBadRequest, "Invalid acl type")
return
}
// acl require auth even for public data
if u == nil {
responder.RespondWithError(ctx, http.StatusUnauthorized, e.NoAuth)
return
}
// Load node and handle user unauthorized
n, err := node.LoadUnauth(nid)
if err != nil {
if err.Error() == e.MongoDocNotFound {
responder.RespondWithError(ctx, http.StatusNotFound, "Node not found")
return
} else {
// In theory the db connection could be lost between
// checking user and load but seems unlikely.
err_msg := "Err@node_Read:LoadNode: " + err.Error()
logger.Error(err_msg)
responder.RespondWithError(ctx, http.StatusInternalServerError, err_msg)
return
}
}
// only the owner can view/edit acl's unless owner="" or owner=nil
// note: owner can only be empty when anonymous node creation is enabled in shock config.
if n.Acl.Owner != u.Uuid && n.Acl.Owner != "" {
err_msg := "Only the node owner can edit/view node ACL's"
logger.Error(err_msg)
responder.RespondWithError(ctx, http.StatusBadRequest, err_msg)
return
}
requestMethod := ctx.HttpRequest().Method
if requestMethod != "GET" {
ids, err := parseAclRequestTyped(ctx)
if err != nil {
responder.RespondWithError(ctx, http.StatusBadRequest, err.Error())
return
}
if requestMethod == "POST" || requestMethod == "PUT" {
if rtype == "owner" {
if len(ids) == 1 {
n.Acl.SetOwner(ids[0])
} else {
responder.RespondWithError(ctx, http.StatusBadRequest, "Too many users. Nodes may have only one owner.")
return
}
} else if rtype == "all" {
for _, atype := range []string{"read", "write", "delete"} {
for _, i := range ids {
n.Acl.Set(i, map[string]bool{atype: true})
}
}
} else {
for _, i := range ids {
n.Acl.Set(i, map[string]bool{rtype: true})
}
}
n.Save()
} else if requestMethod == "DELETE" {
if rtype == "owner" {
responder.RespondWithError(ctx, http.StatusBadRequest, "Deleting ownership is not a supported request type.")
return
} else if rtype == "all" {
for _, atype := range []string{"read", "write", "delete"} {
for _, i := range ids {
n.Acl.UnSet(i, map[string]bool{atype: true})
}
}
} else {
for _, i := range ids {
n.Acl.UnSet(i, map[string]bool{rtype: true})
}
}
n.Save()
} else {
responder.RespondWithError(ctx, http.StatusNotImplemented, "This request type is not implemented.")
return
}
}
switch rtype {
default:
responder.RespondWithError(ctx, http.StatusNotImplemented, "This request type is not implemented.")
case "read":
responder.RespondWithData(ctx, map[string][]string{"read": n.Acl.Read})
case "write":
responder.RespondWithData(ctx, map[string][]string{"write": n.Acl.Write})
case "delete":
responder.RespondWithData(ctx, map[string][]string{"delete": n.Acl.Delete})
case "owner":
responder.RespondWithData(ctx, map[string]string{"owner": n.Acl.Owner})
case "all":
responder.RespondWithData(ctx, n.Acl)
}
return
}
func parseAclRequestTyped(ctx context.Context) (ids []string, err error) {
var users []string
query := ctx.HttpRequest().URL.Query()
params, _, err := request.ParseMultipartForm(ctx.HttpRequest())
if _, ok := query["users"]; ok && err != nil && err.Error() == "request Content-Type isn't multipart/form-data" {
users = strings.Split(query.Get("users"), ",")
} else if params["users"] != "" {
users = strings.Split(params["users"], ",")
} else {
return nil, errors.New("Action requires list of comma separated usernames in 'users' parameter")
}
for _, v := range users {
if uuid.Parse(v) != nil {
ids = append(ids, v)
} else {
u := user.User{Username: v}
if err := u.SetMongoInfo(); err != nil {
return nil, err
}
ids = append(ids, u.Uuid)
}
}
return ids, nil
}