Add keyring and keyring_info modules (#4764) (#4864)

(cherry picked from commit 45362d39a2)

Co-authored-by: ahussey-redhat <93101976+ahussey-redhat@users.noreply.github.com>

plugins/modules/system/keyring.py

@@ -0,0 +1,270 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Copyright: (c) 2022, Alexander Hussey <ahussey@redhat.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+"""
+Ansible Module - community.general.keyring
+"""
+
+from __future__ import absolute_import, division, print_function
+
+__metaclass__ = type
+
+DOCUMENTATION = r"""
+---
+module: keyring
+version_added: 5.2.0
+author:
+  - Alexander Hussey (@ahussey-redhat)
+short_description: Set or delete a passphrase using the Operating System's native keyring
+description: >-
+  This module uses the L(keyring Python library, https://pypi.org/project/keyring/)
+  to set or delete passphrases for a given service and username from the OS' native keyring.
+requirements:
+  - keyring (Python library)
+  - gnome-keyring (application - required for headless Gnome keyring access)
+  - dbus-run-session (application - required for headless Gnome keyring access)
+options:
+  service:
+    description: The name of the service.
+    required: true
+    type: str
+  username:
+    description: The user belonging to the service.
+    required: true
+    type: str
+  user_password:
+    description: The password to set.
+    required: false
+    type: str
+    aliases:
+      - password
+  keyring_password:
+    description: Password to unlock keyring.
+    required: true
+    type: str
+  state:
+    description: Whether the password should exist.
+    required: false
+    default: present
+    type: str
+    choices:
+      - present
+      - absent
+"""
+
+EXAMPLES = r"""
+- name: Set a password for test/test1
+  community.general.keyring:
+    service: test
+    username: test1
+    user_password: "{{ user_password }}"
+    keyring_password: "{{ keyring_password }}"
+
+- name: Delete the password for test/test1
+  community.general.keyring:
+    service: test
+    username: test1
+    user_password: "{{ user_password }}"
+    keyring_password: "{{ keyring_password }}"
+    state: absent
+"""
+
+try:
+    from shlex import quote
+except ImportError:
+    from pipes import quote
+import traceback
+
+from ansible.module_utils.basic import AnsibleModule, missing_required_lib
+
+try:
+    import keyring
+
+    HAS_KEYRING = True
+except ImportError:
+    HAS_KEYRING = False
+    KEYRING_IMP_ERR = traceback.format_exc()
+
+
+def del_passphrase(module):
+    """
+    Attempt to delete a passphrase in the keyring using the Python API and fallback to using a shell.
+    """
+    if module.check_mode:
+        return None
+    try:
+        keyring.delete_password(module.params["service"], module.params["username"])
+        return None
+    except keyring.errors.KeyringLocked as keyring_locked_err:  # pylint: disable=unused-variable
+        delete_argument = (
+            'echo "%s" | gnome-keyring-daemon --unlock\nkeyring del %s %s\n'
+            % (
+                quote(module.params["keyring_password"]),
+                quote(module.params["service"]),
+                quote(module.params["username"]),
+            )
+        )
+        dummy, dummy, stderr = module.run_command(
+            "dbus-run-session -- /bin/bash",
+            use_unsafe_shell=True,
+            data=delete_argument,
+            encoding=None,
+        )
+
+        if not stderr.decode("UTF-8"):
+            return None
+        return stderr.decode("UTF-8")
+
+
+def set_passphrase(module):
+    """
+    Attempt to set passphrase in the keyring using the Python API and fallback to using a shell.
+    """
+    if module.check_mode:
+        return None
+    try:
+        keyring.set_password(
+            module.params["service"],
+            module.params["username"],
+            module.params["user_password"],
+        )
+        return None
+    except keyring.errors.KeyringLocked as keyring_locked_err:  # pylint: disable=unused-variable
+        set_argument = (
+            'echo "%s" | gnome-keyring-daemon --unlock\nkeyring set %s %s\n%s\n'
+            % (
+                quote(module.params["keyring_password"]),
+                quote(module.params["service"]),
+                quote(module.params["username"]),
+                quote(module.params["user_password"]),
+            )
+        )
+        dummy, dummy, stderr = module.run_command(
+            "dbus-run-session -- /bin/bash",
+            use_unsafe_shell=True,
+            data=set_argument,
+            encoding=None,
+        )
+        if not stderr.decode("UTF-8"):
+            return None
+        return stderr.decode("UTF-8")
+
+
+def get_passphrase(module):
+    """
+    Attempt to retrieve passphrase from keyring using the Python API and fallback to using a shell.
+    """
+    try:
+        passphrase = keyring.get_password(
+            module.params["service"], module.params["username"]
+        )
+        return passphrase
+    except keyring.errors.KeyringLocked:
+        pass
+    except keyring.errors.InitError:
+        pass
+    except AttributeError:
+        pass
+    get_argument = 'echo "%s" | gnome-keyring-daemon --unlock\nkeyring get %s %s\n' % (
+        quote(module.params["keyring_password"]),
+        quote(module.params["service"]),
+        quote(module.params["username"]),
+    )
+    dummy, stdout, dummy = module.run_command(
+        "dbus-run-session -- /bin/bash",
+        use_unsafe_shell=True,
+        data=get_argument,
+        encoding=None,
+    )
+    try:
+        return stdout.decode("UTF-8").splitlines()[1]  # Only return the line containing the password
+    except IndexError:
+        return None
+
+
+def run_module():
+    """
+    Attempts to retrieve a passphrase from a keyring.
+    """
+    result = dict(
+        changed=False,
+        msg="",
+    )
+
+    module_args = dict(
+        service=dict(type="str", required=True),
+        username=dict(type="str", required=True),
+        keyring_password=dict(type="str", required=True, no_log=True),
+        user_password=dict(
+            type="str", required=False, no_log=True, aliases=["password"]
+        ),
+        state=dict(
+            type="str", required=False, default="present", choices=["absent", "present"]
+        ),
+    )
+
+    module = AnsibleModule(argument_spec=module_args, supports_check_mode=True)
+
+    if not HAS_KEYRING:
+        module.fail_json(msg=missing_required_lib("keyring"), exception=KEYRING_IMP_ERR)
+
+    passphrase = get_passphrase(module)
+    if module.params["state"] == "present":
+        if passphrase is not None:
+            if passphrase == module.params["user_password"]:
+                result["msg"] = "Passphrase already set for %s@%s" % (
+                    module.params["service"],
+                    module.params["username"],
+                )
+            if passphrase != module.params["user_password"]:
+                set_result = set_passphrase(module)
+                if set_result is None:
+                    result["changed"] = True
+                    result["msg"] = "Passphrase has been updated for %s@%s" % (
+                        module.params["service"],
+                        module.params["username"],
+                    )
+                if set_result is not None:
+                    module.fail_json(msg=set_result)
+        if passphrase is None:
+            set_result = set_passphrase(module)
+            if set_result is None:
+                result["changed"] = True
+                result["msg"] = "Passphrase has been updated for %s@%s" % (
+                    module.params["service"],
+                    module.params["username"],
+                )
+            if set_result is not None:
+                module.fail_json(msg=set_result)
+
+    if module.params["state"] == "absent":
+        if not passphrase:
+            result["result"] = "Passphrase already absent for %s@%s" % (
+                module.params["service"],
+                module.params["username"],
+            )
+        if passphrase:
+            del_result = del_passphrase(module)
+            if del_result is None:
+                result["changed"] = True
+                result["msg"] = "Passphrase has been removed for %s@%s" % (
+                    module.params["service"],
+                    module.params["username"],
+                )
+            if del_result is not None:
+                module.fail_json(msg=del_result)
+
+    module.exit_json(**result)
+
+
+def main():
+    """
+    main module loop
+    """
+    run_module()
+
+
+if __name__ == "__main__":
+    main()