1 | <?php |
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2 | /** |
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3 | * @link https://github.com/chrmorandi/yii2-ldap for the source repository |
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4 | * @package yii2-ldap |
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5 | * @author Christopher Mota <[email protected]> |
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6 | * @license MIT License - view the LICENSE file that was distributed with this source code. |
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7 | * @since 1.0.0 |
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8 | */ |
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9 | |||
10 | namespace chrmorandi\ldap; |
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11 | |||
12 | use yii\base\InvalidArgumentException; |
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13 | use yii\base\InvalidParamException; |
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14 | |||
15 | /** |
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16 | * Some common helper LDAP functions. |
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17 | */ |
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18 | class LdapHelper |
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19 | { |
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20 | /** |
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21 | * Converts a string distinguished name into its separate pieces. |
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22 | * |
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23 | * @param string $dn |
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24 | * @param int $withAttributes Set to 0 to get the attribute names along with the value. |
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25 | * @return array |
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26 | */ |
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27 | public static function explodeDn($dn, $withAttributes = 1) |
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28 | { |
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29 | $pieces = ldap_explode_dn($dn, $withAttributes); |
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30 | |||
31 | if ($pieces === false || !isset($pieces['count']) || $pieces['count'] == 0) { |
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32 | throw new InvalidParamException(sprintf('Unable to parse DN "%s".', $dn)); |
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33 | } |
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34 | unset($pieces['count']); |
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35 | return $pieces; |
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36 | } |
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37 | |||
38 | /** |
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39 | * Given a DN as an array in ['cn=Name', 'ou=Employees', 'dc=example', 'dc=com'] form, return it as its string |
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40 | * representation that is safe to pass back to a query or to save back to LDAP for a DN. |
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41 | * |
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42 | * @param array $dn |
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43 | * @return string |
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44 | */ |
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45 | public static function implodeDn(array $dn) |
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46 | { |
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47 | foreach ($dn as $index => $piece) { |
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48 | $values = explode('=', $piece, 2); |
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49 | if (count($values) === 1) { |
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50 | throw new InvalidArgumentException(sprintf('Unable to parse DN piece "%s".', $values[0])); |
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51 | } |
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52 | $dn[$index] = $values[0] . '=' . $values[1]; |
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53 | } |
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54 | |||
55 | return implode(',', $dn); |
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56 | } |
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57 | |||
58 | /** |
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59 | * Given a full escaped DN return the RDN in escaped form. |
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60 | * |
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61 | * @param string $dn |
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62 | * @return string Return string like "attribute = value" |
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63 | */ |
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64 | public static function getRdnFromDn($dn) |
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65 | { |
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66 | $rdn = self::explodeDn($dn, 0)[0]; |
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67 | $rdn = explode('=', $rdn, 2); |
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68 | |||
69 | return $rdn[0] . '=' . $rdn[1]; |
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70 | } |
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71 | |||
72 | /** |
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73 | * Recursively implodes an array with optional key inclusion |
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74 | * |
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75 | * Example of $include_keys output: key, value, key, value, key, value |
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76 | * |
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77 | * @access public |
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78 | * @param array $array multi-dimensional array to recursively implode |
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79 | * @param string $glue value that glues elements together |
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80 | * @param bool $include_keys include keys before their values |
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81 | * @param bool $trim_all trim ALL whitespace from string |
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82 | * @return string imploded array |
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83 | */ |
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84 | public static function recursive_implode(array $array, $glue = ',', $include_keys = false, $trim_all = true) |
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85 | { |
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86 | $glued_string = ''; |
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87 | |||
88 | // Recursively iterates array and adds key/value to glued string |
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89 | array_walk_recursive($array, function($value, $key) use ($glue, $include_keys, &$glued_string) { |
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90 | $include_keys and $glued_string .= $key . $glue; |
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91 | $glued_string .= $value . $glue; |
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92 | }); |
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93 | |||
94 | // Removes last $glue from string |
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95 | strlen($glue) > 0 and $glued_string = substr($glued_string, 0, -strlen($glue)); |
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96 | |||
97 | // Trim ALL whitespace |
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98 | $trim_all and $glued_string = preg_replace("/(\s)/ixsm", '', $glued_string); |
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99 | |||
100 | return (string) $glued_string; |
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101 | } |
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102 | |||
103 | } |
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104 |