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package gonf
import (
"errors"
"io/fs"
"os"
"os/user"
"strconv"
"syscall"
)
type Permissions struct {
group Value
mode Value
user Value
}
func ModeUserGroup(mode, user, group interface{}) *Permissions {
return &Permissions{
group: interfaceToTemplateValue(group),
mode: interfaceToTemplateValue(mode),
user: interfaceToTemplateValue(user),
}
}
func (p *Permissions) resolve(filename string) (Status, error) {
g, ok := p.group.(*IntValue)
if !ok {
if group, err := user.LookupGroup(p.group.String()); err != nil {
return BROKEN, err
} else {
if groupId, err := strconv.Atoi(group.Gid); err != nil {
return BROKEN, err
} else {
g = &IntValue{groupId}
p.group = g
}
}
}
m, err := p.mode.Int()
if err != nil {
return BROKEN, err
}
u, ok := p.user.(*IntValue)
if !ok {
if user, err := user.Lookup(p.user.String()); err != nil {
return BROKEN, err
} else {
if userId, err := strconv.Atoi(user.Uid); err != nil {
return BROKEN, err
} else {
u = &IntValue{userId}
p.group = u
}
}
}
var status Status = KEPT
if fileInfo, err := os.Lstat(filename); err != nil {
return BROKEN, err
} else {
gv, _ := g.Int()
mv := fs.FileMode(m)
uv, _ := u.Int()
if fileInfo.Mode() != mv {
if err := os.Chmod(filename, mv); err != nil {
return BROKEN, err
}
status = REPAIRED
}
if stat, ok := fileInfo.Sys().(*syscall.Stat_t); ok {
if stat.Gid != uint32(gv) || stat.Uid != uint32(uv) {
if err := os.Chown(filename, uv, gv); err != nil {
return BROKEN, err
}
status = REPAIRED
}
} else {
return BROKEN, errors.New("Unsupported operating system")
}
}
return status, nil
}
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