118 lines
3.5 KiB
Markdown
118 lines
3.5 KiB
Markdown
---
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title: DN API | ldapjs
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---
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# ldapjs DN API
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<div class="intro">
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This document covers the ldapjs DN API and assumes that you are familiar
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with LDAP. If you're not, read the [guide](guide.html) first.
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</div>
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DNs are LDAP distinguished names, and are composed of a set of RDNs (relative
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distinguished names). [RFC2253](http://www.ietf.org/rfc/rfc2253.txt) has the
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complete specification, but basically an RDN is an attribute value assertion
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with `=` as the seperator, like: `cn=foo` where 'cn' is 'commonName' and 'foo'
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is the value. You can have compound RDNs by using the `+` character:
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`cn=foo+sn=bar`. As stated above, DNs are a set of RDNs, typically separated
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with the `,` character, like: `cn=foo, ou=people, o=example`. This uniquely
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identifies an entry in the tree, and is read "bottom up".
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# parseDN(dnString)
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The `parseDN` API converts a string representation of a DN into an ldapjs DN
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object; in most cases this will be handled for you under the covers of the
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ldapjs framework, but if you need it, it's there.
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var parseDN = require('ldapjs').parseDN;
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var dn = parseDN('cn=foo+sn=bar, ou=people, o=example');
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console.log(dn.toString());
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# DN
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The DN object is largely what you'll be interacting with, since all the server
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APIs are setup to give you a DN object.
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## childOf(dn)
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Returns a boolean indicating whether 'this' is a child of the passed in dn. The
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`dn` argument can be either a string or a DN.
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server.add('o=example', function(req, res, next) {
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if (req.dn.childOf('ou=people, o=example')) {
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...
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} else {
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...
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}
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});
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## parentOf(dn)
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The inverse of `childOf`; returns a boolean on whether or not `this` is a parent
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of the passed in dn. Like `childOf`, can take either a string or a DN.
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server.add('o=example', function(req, res, next) {
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var dn = parseDN('ou=people, o=example');
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if (dn.parentOf(req.dn)) {
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...
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} else {
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...
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}
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});
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## equals(dn)
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Returns a boolean indicating whether `this` is equivalent to the passed in `dn`
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argument. `dn` can be a string or a DN.
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server.add('o=example', function(req, res, next) {
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if (req.dn.equals('cn=foo, ou=people, o=example')) {
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...
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} else {
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...
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}
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});
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## parent()
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Returns a DN object that is the direct parent of `this`. If there is no parent
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this can return `null` (e.g. `parseDN('o=example').parent()` will return null).
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## format(options)
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Convert a DN object to string according to specified formatting options. These
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options are divided into two types. Preservation Options use data recorded
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during parsing to preserve details of the original DN. Modification options
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alter string formatting defaults. Preservation options _always_ take
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precedence over Modification Options.
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Preservation Options:
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- `keepOrder`: Order of multi-value RDNs.
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- `keepQuote`: RDN values which were quoted will remain so.
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- `keepSpace`: Leading/trailing spaces will be output.
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- `keepCase`: Parsed attribute name will be output instead of lowercased version.
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Modification Options:
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- `upperName`: RDN names will be uppercased instead of lowercased.
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- `skipSpace`: Disable trailing space after RDN separators
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## setFormat(options)
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Sets the default `options` for string formatting when `toString` is called.
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It accepts the same parameters as `format`.
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## toString()
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Returns the string representation of `this`.
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server.add('o=example', function(req, res, next) {
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console.log(req.dn.toString());
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});
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