forked from Github-Mirrors/canaille
83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
import ldap
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import ldap.modlist
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import ldif
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import os
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from .models import Token, AuthorizationCode, Client, Consent
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from contextlib import contextmanager
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from cryptography.hazmat.primitives import serialization as crypto_serialization
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from cryptography.hazmat.primitives.asymmetric import rsa
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from cryptography.hazmat.backends import default_backend as crypto_default_backend
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class InstallationException(Exception):
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pass
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def install(config):
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setup_ldap_tree(config)
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setup_keypair(config)
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setup_schemas(config)
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@contextmanager
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def ldap_connection(config):
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conn = ldap.initialize(config["LDAP"]["URI"])
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if config["LDAP"].get("TIMEOUT"):
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conn.set_option(ldap.OPT_NETWORK_TIMEOUT, config["LDAP"]["TIMEOUT"])
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conn.simple_bind_s(config["LDAP"]["BIND_DN"], config["LDAP"]["BIND_PW"])
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try:
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yield conn
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finally:
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conn.unbind_s()
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def setup_ldap_tree(config):
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with ldap_connection(config) as conn:
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Token.initialize(conn)
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AuthorizationCode.initialize(conn)
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Client.initialize(conn)
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Consent.initialize(conn)
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def setup_keypair(config):
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if os.path.exists(config["JWT"]["PUBLIC_KEY"]) or os.path.exists(
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config["JWT"]["PRIVATE_KEY"]
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):
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return
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key = rsa.generate_private_key(
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backend=crypto_default_backend(), public_exponent=65537, key_size=2048
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)
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private_key = key.private_bytes(
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crypto_serialization.Encoding.PEM,
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crypto_serialization.PrivateFormat.PKCS8,
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crypto_serialization.NoEncryption(),
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)
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public_key = key.public_key().public_bytes(
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crypto_serialization.Encoding.OpenSSH, crypto_serialization.PublicFormat.OpenSSH
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)
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with open(config["JWT"]["PUBLIC_KEY"], "wb") as fd:
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fd.write(public_key)
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with open(config["JWT"]["PRIVATE_KEY"], "wb") as fd:
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fd.write(private_key)
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def setup_schemas(config):
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with open("schemas/oauth2-openldap.ldif") as fd:
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parser = ldif.LDIFRecordList(fd)
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parser.parse()
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try:
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with ldap_connection(config) as conn:
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for dn, entry in parser.all_records:
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add_modlist = ldap.modlist.addModlist(entry)
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conn.add_s(dn, add_modlist)
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except ldap.INSUFFICIENT_ACCESS as exc:
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raise InstallationException(
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f"The user '{config['LDAP']['BIND_DN']}' has insufficient permissions to install LDAP schemas."
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) from exc
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