func getObject(tx *sql.Tx, s *privileges.Session, path string) (object, error) {
rules, _ := privileges.NewRules("root", "root", "0755")
var obj object = newFolder(tx, s, "", rules)
if len(path) < 2 {
return obj, nil
}
route := strings.Split(path[1:], "/")
for _, o := range route {
val, err := s.Exec(obj)
if err != nil {
return nil, err
}
children, ok := val.(map[string]object)
if !ok {
return nil, errInternal
}
obj = children[o]
if obj == nil {
return nil, errExist
}
}
return obj, nil
}
func newObject(tx *sql.Tx, s *privileges.Session, overwrite bool, path, checksum string, headers map[string][]string) ([]string, error) {
var deleted []string
rules, _ := privileges.NewRules("root", "root", "0755")
var obj object = newFolder(tx, s, "", rules)
route := strings.Split(path[1:], "/")
ctype := "folder"
var date uint64
a, ok := headers["Date"]
if ok {
date, _ = strconv.ParseUint(a[0], 10, 64)
}
author := ""
a, ok = headers["Author"]
if ok {
author = a[0]
}
description := ""
a, ok = headers["Description"]
if ok {
description = a[0]
}
for i, o := range route {
if i == len(route)-1 && checksum != emptyPayloadChecksum {
ctype = "image"
}
val, err := s.Exec(obj)
if err != nil {
return nil, err
}
children, ok := val.(map[string]object)
if !ok {
return nil, errInternal
}
gid, _ := s.Gid("", "")
mod, _ := s.Umask("")
rule, _ := privileges.NewRules(s.User, gid, mod)
path := ""
for j := 0; j <= i; j++ {
path = path + "/" + route[j]
}
if children[o] == nil { // make an entry
if !s.CanWrite(obj) {
return nil, errDenied
}
if ctype == "folder" {
folder := newFolder(tx, s, path, rule)
children[o] = folder
_, err = tx.Exec("INSERT INTO vimages VALUES(?,?,?,?,?,?,?,?,?)", path, true, s.User, gid, mod, "", 0, "", "")
if err != nil {
return nil, err
}
} else { // image
_, err = tx.Exec("INSERT INTO vimages VALUES(?,?,?,?,?,?,?,?,?)", path, false, s.User, gid, mod, checksum, date, author, description)
if err != nil {
return nil, err
}
return deleted, nil
}
} else if children[o].otype() != ctype { // overwrite?
if !overwrite {
return nil, errCollission
}
if !s.CanWrite(obj) {
return nil, errDenied
}
// overwrite EVERYTHING
d, err := children[o].delete()
if err != nil {
return nil, err
}
deleted = append(deleted, d...)
if ctype == "folder" {
folder := newFolder(tx, s, path, rule)
children[o] = folder
_, err = tx.Exec("INSERT INTO vimages VALUES(?,?,?,?,?,?,?,?,?)", path, true, s.User, gid, mod, checksum, date, author, description)
if err != nil {
return nil, err
}
} else { // image
_, err = tx.Exec("INSERT INTO vimages VALUES(?,?,?,?,?,?,?,?,?)", path, false, s.User, gid, mod, checksum, date, author, description)
if err != nil {
return nil, err
}
return deleted, nil
}
} else if i == len(route)-1 { // overwrite if final image
if !overwrite {
return nil, errCollission
}
if s.CanWrite(children[o]) {
d, err := children[o].delete()
if err != nil {
return nil, err
}
deleted = append(deleted, d...)
_, err = tx.Exec("DELETE FROM vimages WHERE path=?", path)
if err != nil {
return nil, err
}
_, err = tx.Exec("INSERT INTO vimages VALUES(?,?,?,?,?,?,?,?,?)", path, false, s.User, gid, mod, checksum, date, author, description)
if err != nil {
return nil, err
}
return deleted, nil
} else {
return nil, errDenied
}
}
obj = children[o]
}
return deleted, nil
}