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package hackers_git
import (
"fmt"
yaml "gopkg.in/yaml.v2"
"io/ioutil"
"os"
"path"
"sd_daemon/logger"
"strconv"
"strings"
)
func filename2uid(filename string) int32 {
basename := path.Base(filename)
parts := strings.SplitN(basename, ".", 2)
if len(parts) != 2 || parts[1] != "yml" {
return -1
}
uid, err := strconv.ParseInt(parts[0], 10, 32)
if err != nil {
return -1
}
return int32(uid)
}
var usersGid = name2gid("users")
func parse_user_yaml(filename string) (ret user, err error) {
ret.passwd.UID = filename2uid(filename)
if ret.passwd.UID < 0 {
err = fmt.Errorf("Invalid user filename: %q", filename)
return
}
file, err := os.Open(filename)
if err != nil {
return
}
contents, err := ioutil.ReadAll(file)
if err != nil {
return
}
var _data interface{}
err = yaml.Unmarshal(contents, &_data)
if err != nil {
return
}
data, isMap := _data.(map[interface{}]interface{})
errs := []string{}
if !isMap {
errs = append(errs, "root node is not a map")
} else {
if iface, isSet := data["username"]; !isSet {
errs = append(errs, "\"username\" is not set")
} else if str, isTyp := iface.(string); !isTyp {
errs = append(errs, "\"username\" is not a string")
} else {
ret.passwd.Name = str
ret.passwd.HomeDir = "/home/" + str
}
if iface, isSet := data["fullname"]; !isSet {
errs = append(errs, "\"fullname\" is not set")
} else if str, isTyp := iface.(string); !isTyp {
errs = append(errs, "\"fullname\" is not a string")
} else {
ret.passwd.GECOS = str
}
if iface, isSet := data["shell"]; !isSet {
errs = append(errs, "\"shell\" is not set")
} else if str, isTyp := iface.(string); !isTyp {
errs = append(errs, "\"shell\" is not a string")
} else {
ret.passwd.Shell = str
}
if iface, isSet := data["groups"]; !isSet {
ret.groups = make([]string, 0)
} else if ary, isTyp := iface.([]interface{}); !isTyp {
errs = append(errs, "\"groups\" is not an array")
} else {
groups := make(map[string]bool, len(ary))
e := false
for _, iface := range ary {
if str, isTyp := iface.(string); !isTyp {
errs = append(errs, "\"group\" item is not an array")
e = true
break
} else {
groups[str] = true
}
}
if !e {
ret.groups = make([]string, len(groups))
var i uint = 0
for group, _ := range groups {
ret.groups[i] = group
i++
}
}
}
}
if len(errs) > 0 {
err = &yaml.TypeError{Errors: errs}
}
ret.passwd.PwHash = "!"
ret.passwd.GID = usersGid
return
}
func parse_user_password(filename string) (hash string) {
hash = "!"
file, err := os.Open(filename)
if err != nil {
logger.Debug("hackers.git: %v", err)
return
}
contents, err := ioutil.ReadAll(file)
if err != nil {
logger.Debug("hackers.git: Error while reading: %q: %v", filename, err)
return
}
lines := strings.Split(string(contents), "\n")
switch len(lines) {
case 1:
hash = lines[0]
case 2:
if lines[1] == "" {
hash = lines[0]
} else {
logger.Debug("hackers.git: Invalid password format in file: %q", filename)
}
default:
logger.Debug("hackers.git: Invalid password format in file: %q", filename)
}
return
}
|
