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Programming language: Crystal
License: MIT License
Tags:
Database Drivers/Clients
Latest version: v0.9.0
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README
LDAP Support for Crystal Lang
Installation
Add the dependency to your shard.yml:
dependencies:
ldap:
github: spider-gazelle/crystal-ldap
Usage
Connecting and Binding
Passing a TLS context will upgrade the connection using start tls
require "ldap"
host = "ldap.forumsys.com"
port = 389
user = "cn=read-only-admin,dc=example,dc=com"
pass = "password"
# Standard LDAP port with unencrypted socket
socket = TCPSocket.new(host, port)
# Providing a context will upgrade to encrypted comms using start tls (official method)
tls = OpenSSL::SSL::Context::Client.new
tls.verify_mode = OpenSSL::SSL::VerifyMode::NONE
# Bind to the server
client = LDAP::Client.new(socket, tls)
client.authenticate(user, pass)
# Can now perform LDAP operations
To use the non-standard LDAPS (LDAP Secure, commonly known as LDAP over SSL) protocol then pass in a OpenSSL::SSL::Socket::Client directly: LDAP::Client.new(tls_socket)
Querying
You can perform search requests
# You can use LDAP string filters directly
client.search(base: "dc=example,dc=com", filter: "(|(uid=einstein)(uid=training))")
# There are options to select particular attributes and limit response sizes
filter = LDAP::Request::Filter.equal("objectClass", "person")
client.search(
base: "dc=example,dc=com",
filter: filter,
size: 6,
attributes: ["hasSubordinates", "objectClass"]
)
# Filters can be combined using standard operations
filter = (
LDAP::Request::Filter.equal("objectClass", "person") &
LDAP::Request::Filter.equal("sn", "training")) |
LDAP::Request::FilterParser.parse("(uid=einstein)"
)
client.search(base: "dc=example,dc=com", filter: filter)
Search responses are Array(Hash(String, Array(String)))
[
{
"dn" => ["uid=einstein,dc=example,dc=com"],
"objectClass" => ["inetOrgPerson", "organizationalPerson", "person", "top"],
"cn" => ["Albert Einstein"],
"sn" => ["Einstein"],
"uid" => ["einstein"],
"mail" => ["[email protected]"],
"telephoneNumber" => ["314-159-2653"]
},
{
"dn" => ["uid=training,dc=example,dc=com"],
"uid" => ["training"],
"objectClass" => ["inetOrgPerson", "organizationalPerson", "person", "top"],
"cn" => ["FS Training"],
"sn" => ["training"],
"mail" => ["[email protected]"],
"telephoneNumber" => ["888-111-2222"]
}
]