pki: T3642: Add ability to import files into PKi configuration

3 files changed, 326 insertions, 7 deletions

diff --git a/op-mode-definitions/pki.xml.in b/op-mode-definitions/pki.xml.in
index a1c55dcf4..346febec0 100644
--- a/op-mode-definitions/pki.xml.in
+++ b/op-mode-definitions/pki.xml.in
@@ -349,6 +349,141 @@
       </node>
     </children>
   </node>
+  <node name="import">
+    <properties>
+      <help>Import an object</help>
+    </properties>
+    <children>
+      <node name="pki">
+        <properties>
+          <help>Import file into PKI configuration</help>
+        </properties>
+        <children>
+          <tagNode name="ca">
+            <properties>
+              <help>Import CA certificate into PKI</help>
+              <completionHelp>
+                <list>&lt;name&gt;</list>
+              </completionHelp>
+            </properties>
+            <children>
+              <tagNode name="file">
+                <properties>
+                  <help>Path to CA certificate file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --ca "$4" --filename "$6"</command>
+              </tagNode>
+              <tagNode name="key-file">
+                <properties>
+                  <help>Path to private key file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --ca "$4" --key-filename "$6"</command>
+              </tagNode>
+            </children>
+          </tagNode>
+          <tagNode name="certificate">
+            <properties>
+              <help>Import certificate into PKI</help>
+              <completionHelp>
+                <list>&lt;name&gt;</list>
+              </completionHelp>
+            </properties>
+            <children>
+              <tagNode name="file">
+                <properties>
+                  <help>Path to certificate file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --certificate "$4" --filename "$6"</command>
+              </tagNode>
+              <tagNode name="key-file">
+                <properties>
+                  <help>Path to private key file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --certificate "$4" --key-filename "$6"</command>
+              </tagNode>
+            </children>
+          </tagNode>
+          <tagNode name="crl">
+            <properties>
+              <help>Import certificate revocation list into PKI</help>
+              <completionHelp>
+                <list>&lt;CA name&gt;</list>
+              </completionHelp>
+            </properties>
+            <children>
+              <tagNode name="file">
+                <properties>
+                  <help>Path to CRL file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --crl "$4" --filename "$6"</command>
+              </tagNode>
+            </children>
+          </tagNode>
+          <tagNode name="dh">
+            <properties>
+              <help>Import DH parameters into PKI</help>
+              <completionHelp>
+                <list>&lt;name&gt;</list>
+              </completionHelp>
+            </properties>
+            <children>
+              <tagNode name="file">
+                <properties>
+                  <help>Path to DH parameters file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --dh "$4" --filename "$6"</command>
+              </tagNode>
+            </children>
+          </tagNode>
+          <tagNode name="key-pair">
+            <properties>
+              <help>Import key pair into PKI</help>
+              <completionHelp>
+                <list>&lt;name&gt;</list>
+              </completionHelp>
+            </properties>
+            <children>
+              <tagNode name="public-file">
+                <properties>
+                  <help>Path to public key file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --keypair "$4" --filename "$6"</command>
+              </tagNode>
+              <tagNode name="private-file">
+                <properties>
+                  <help>Path to private key file</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --keypair "$4" --key-filename "$6"</command>
+              </tagNode>
+            </children>
+          </tagNode>
+          <node name="openvpn">
+            <properties>
+              <help>Import OpenVPN keys into PKI</help>
+            </properties>
+            <children>
+              <tagNode name="shared-secret">
+                <properties>
+                  <help>Import OpenVPN shared secret key into PKI</help>
+                  <completionHelp>
+                    <list>&lt;name&gt;</list>
+                  </completionHelp>
+                </properties>
+                <children>
+                  <tagNode name="file">
+                    <properties>
+                      <help>Path to shared secret key file</help>
+                    </properties>
+                    <command>sudo ${vyos_op_scripts_dir}/pki.py --action import --openvpn "$5" --filename "$7"</command>
+                  </tagNode>
+                </children>
+              </tagNode>
+            </children>
+          </node>
+        </children>
+      </node>
+    </children>
+  </node>
   <node name="show">
     <children>
       <node name="pki">
diff --git a/python/vyos/pki.py b/python/vyos/pki.py
index 0b916eaae..fd91fc9bf 100644
--- a/python/vyos/pki.py
+++ b/python/vyos/pki.py
@@ -247,7 +247,7 @@ def load_private_key(raw_data, passphrase=None, wrap_tags=True):
     if wrap_tags:
         raw_data = wrap_private_key(raw_data, passphrase)
 
-    if passphrase:
+    if passphrase is not None:
         passphrase = bytes(passphrase, 'utf-8')
 
     try:
diff --git a/src/op_mode/pki.py b/src/op_mode/pki.py
index bc7813052..193d97744 100755
--- a/src/op_mode/pki.py
+++ b/src/op_mode/pki.py
@@ -17,6 +17,7 @@
 import argparse
 import ipaddress
 import os
+import re
 import sys
 import tabulate
 
@@ -30,7 +31,8 @@ from vyos.pki import encode_certificate, encode_public_key, encode_private_key,
 from vyos.pki import create_certificate, create_certificate_request, create_certificate_revocation_list
 from vyos.pki import create_private_key
 from vyos.pki import create_dh_parameters
-from vyos.pki import load_certificate, load_certificate_request, load_private_key, load_crl
+from vyos.pki import load_certificate, load_certificate_request, load_private_key
+from vyos.pki import load_crl, load_dh_parameters, load_public_key
 from vyos.pki import verify_certificate
 from vyos.xml import defaults
 from vyos.util import ask_input, ask_yes_no
@@ -183,13 +185,13 @@ def install_ssh_key(name, public_key, private_key, passphrase=None):
     ])
     print(encode_private_key(private_key, encoding='PEM', key_format='OpenSSH', passphrase=passphrase))
 
-def install_keypair(name, key_type, private_key=None, public_key=None, passphrase=None):
+def install_keypair(name, key_type, private_key=None, public_key=None, passphrase=None, prompt=True):
     # Show/install conf commands for key-pair
     
     config_paths = []
 
     if public_key:
-        install_public_key = ask_yes_no('Do you want to install the public key?', default=True)
+        install_public_key = not prompt or ask_yes_no('Do you want to install the public key?', default=True)
         public_key_pem = encode_public_key(public_key)
 
         if install_public_key:
@@ -200,7 +202,7 @@ def install_keypair(name, key_type, private_key=None, public_key=None, passphras
             print(public_key_pem)
 
     if private_key:
-        install_private_key = ask_yes_no('Do you want to install the private key?', default=True)
+        install_private_key = not prompt or ask_yes_no('Do you want to install the private key?', default=True)
         private_key_pem = encode_private_key(private_key, passphrase=passphrase)
 
         if install_private_key:
@@ -214,6 +216,13 @@ def install_keypair(name, key_type, private_key=None, public_key=None, passphras
 
     install_into_config(conf, config_paths)
 
+def install_openvpn_key(name, key_data, key_version='1'):
+    config_paths = [
+        f"pki openvpn shared-secret {name} key '{key_data}'",
+        f"pki openvpn shared-secret {name} version '{key_version}'"
+    ]
+    install_into_config(conf, config_paths)
+
 def install_wireguard_key(interface, private_key, public_key):
     # Show conf commands for installing wireguard key pairs
     from vyos.ifconfig import Section
@@ -640,7 +649,6 @@ def generate_openvpn_key(name, install=False, file=False):
         key_data = "".join(key_lines[1:-1]) # Remove wrapper tags and line endings
         key_version = '1'
 
-        import re
         version_search = re.search(r'BEGIN OpenVPN Static key V(\d+)', result) # Future-proofing (hopefully)
         if version_search:
             key_version = version_search[1]
@@ -670,6 +678,167 @@ def generate_wireguard_psk(interface=None, peer=None, install=False):
     else:
         print(f'Pre-shared key: {psk}')
 
+# Import functions
+def import_ca_certificate(name, path=None, key_path=None):
+    if path:
+        if not os.path.exists(path):
+            print(f'File not found: {path}')
+            return
+
+        cert = None
+
+        with open(path) as f:
+            cert_data = f.read()
+            cert = load_certificate(cert_data, wrap_tags=False)
+
+        if not cert:
+            print(f'Invalid certificate: {path}')
+            return
+
+        install_certificate(name, cert, is_ca=True)
+
+    if key_path:
+        if not os.path.exists(key_path):
+            print(f'File not found: {key_path}')
+            return
+
+        key = None
+        passphrase = ask_input('Enter private key passphrase: ') or None
+
+        with open(key_path) as f:
+            key_data = f.read()
+            key = load_private_key(key_data, passphrase=passphrase, wrap_tags=False)
+
+        if not key:
+            print(f'Invalid private key or passphrase: {path}')
+            return
+
+        install_certificate(name, private_key=key, is_ca=True)
+
+def import_certificate(name, path=None, key_path=None):
+    if path:
+        if not os.path.exists(path):
+            print(f'File not found: {path}')
+            return
+
+        cert = None
+
+        with open(path) as f:
+            cert_data = f.read()
+            cert = load_certificate(cert_data, wrap_tags=False)
+
+        if not cert:
+            print(f'Invalid certificate: {path}')
+            return
+
+        install_certificate(name, cert, is_ca=False)
+
+    if key_path:
+        if not os.path.exists(key_path):
+            print(f'File not found: {key_path}')
+            return
+
+        key = None
+        passphrase = ask_input('Enter private key passphrase: ') or None
+
+        with open(key_path) as f:
+            key_data = f.read()
+            key = load_private_key(key_data, passphrase=passphrase, wrap_tags=False)
+
+        if not key:
+            print(f'Invalid private key or passphrase: {path}')
+            return
+
+        install_certificate(name, private_key=key, is_ca=False)
+
+def import_crl(name, path):
+    if not os.path.exists(path):
+        print(f'File not found: {path}')
+        return
+
+    crl = None
+
+    with open(path) as f:
+        crl_data = f.read()
+        crl = load_crl(crl_data, wrap_tags=False)
+
+    if not crl:
+        print(f'Invalid certificate: {path}')
+        return
+
+    install_crl(name, crl)
+
+def import_dh_parameters(name, path):
+    if not os.path.exists(path):
+        print(f'File not found: {path}')
+        return
+
+    dh = None
+
+    with open(path) as f:
+        dh_data = f.read()
+        dh = load_dh_parameters(dh_data, wrap_tags=False)
+
+    if not dh:
+        print(f'Invalid DH parameters: {path}')
+        return
+
+    install_dh_parameters(name, dh)
+
+def import_keypair(name, path=None, key_path=None):
+    if path:
+        if not os.path.exists(path):
+            print(f'File not found: {path}')
+            return
+
+        key = None
+
+        with open(path) as f:
+            key_data = f.read()
+            key = load_public_key(key_data, wrap_tags=False)
+
+        if not key:
+            print(f'Invalid public key: {path}')
+            return
+
+        install_keypair(name, None, public_key=key, prompt=False)
+
+    if key_path:
+        if not os.path.exists(key_path):
+            print(f'File not found: {key_path}')
+            return
+
+        key = None
+        passphrase = ask_input('Enter private key passphrase: ') or None
+
+        with open(key_path) as f:
+            key_data = f.read()
+            key = load_private_key(key_data, passphrase=passphrase, wrap_tags=False)
+
+        if not key:
+            print(f'Invalid private key or passphrase: {path}')
+            return
+
+        install_keypair(name, None, private_key=key, prompt=False)
+
+def import_openvpn_secret(name, path):
+    if not os.path.exists(path):
+        print(f'File not found: {path}')
+        return
+
+    key_data = None
+    key_version = '1'
+
+    with open(path) as f:
+        key_lines = f.read().split("\n")
+        key_data = "".join(key_lines[1:-1]) # Remove wrapper tags and line endings
+
+    version_search = re.search(r'BEGIN OpenVPN Static key V(\d+)', key_lines[0]) # Future-proofing (hopefully)
+    if version_search:
+        key_version = version_search[1]
+
+    install_openvpn_key(name, key_data, key_version)
+
 # Show functions
 def show_certificate_authority(name=None):
     headers = ['Name', 'Subject', 'Issuer CN', 'Issued', 'Expiry', 'Private Key', 'Parent']
@@ -799,6 +968,9 @@ if __name__ == '__main__':
     parser.add_argument('--file', help='Write generated keys into specified filename', action='store_true')
     parser.add_argument('--install', help='Install generated keys into running-config', action='store_true')
 
+    parser.add_argument('--filename', help='Write certificate into specified filename', action='store')
+    parser.add_argument('--key-filename', help='Write key into specified filename', action='store')
+
     args = parser.parse_args()
 
     try:
@@ -840,7 +1012,19 @@ if __name__ == '__main__':
                     generate_wireguard_key(args.interface, install=args.install)
                 if args.psk:
                     generate_wireguard_psk(args.interface, peer=args.peer, install=args.install)
-
+        elif args.action == 'import':
+            if args.ca:
+                import_ca_certificate(args.ca, path=args.filename, key_path=args.key_filename)
+            elif args.certificate:
+                import_certificate(args.certificate, path=args.filename, key_path=args.key_filename)
+            elif args.crl:
+                import_crl(args.crl, args.filename)
+            elif args.dh:
+                import_dh_parameters(args.dh, args.filename)
+            elif args.keypair:
+                import_keypair(args.keypair, path=args.filename, key_path=args.key_filename)
+            elif args.openvpn:
+                import_openvpn_secret(args.openvpn, args.filename)
         elif args.action == 'show':
             if args.ca:
                 ca_name = None if args.ca == 'all' else args.ca