06701625 |
1 | /* |
2 | * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc> |
3 | * |
4 | * Permission to use, copy, modify, and distribute this software for any |
5 | * purpose with or without fee is hereby granted, provided that the above |
6 | * copyright notice and this permission notice appear in all copies. |
7 | * |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
15 | */ |
16 | |
17 | #include <unistd.h> |
18 | #include <limits.h> |
19 | #include <string.h> |
20 | |
21 | #include <glib/gprintf.h> |
22 | #include <glib-unix.h> |
23 | #include <polkit/polkit.h> |
24 | |
25 | #include "polkit-auth.h" |
26 | |
571a5b70 |
27 | static gboolean is_valid_action(GList *action_list, const gchar *action) { |
28 | |
29 | PolkitActionDescription *action_descr; |
30 | action_descr = (PolkitActionDescription *)g_list_first(action_list); |
31 | |
32 | while((action_descr = (PolkitActionDescription *)g_list_next(action_list))) |
33 | if(!g_strcmp0(action, polkit_action_description_get_action_id(action_descr))) |
34 | return TRUE; |
35 | |
36 | return FALSE; |
37 | } |
38 | |
39 | check_auth_result polkit_try_auth(const gchar *bus, const gchar *action) { |
40 | |
41 | GList *valid_actions; |
42 | PolkitAuthority *auth; |
43 | PolkitSubject *subj; |
44 | PolkitAuthorizationResult *result; |
45 | gboolean authorized, challenge; |
46 | |
47 | auth = NULL; |
48 | subj = NULL; |
49 | result = NULL; |
50 | valid_actions = NULL; |
51 | authorized = challenge = FALSE; |
52 | |
53 | auth = polkit_authority_get_sync(NULL, NULL); /* TODO timeout for this */ |
54 | subj = polkit_system_bus_name_new(bus); |
55 | valid_actions = polkit_authority_enumerate_actions_sync(auth, NULL, NULL); |
56 | |
57 | if(!auth || !valid_actions) |
58 | return ERROR_GENERIC; /* extremely unlikely */ |
59 | else if(!subj) |
60 | return ERROR_BADBUS; |
61 | else if(!is_valid_action(valid_actions, action)) |
62 | return ERROR_BADACTION; |
63 | |
64 | if(!(result = polkit_authority_check_authorization_sync(auth, subj, action, NULL, POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, NULL, NULL))) |
65 | return ERROR_GENERIC; /* TODO pass, check gerror and return more relevant error */ |
66 | |
67 | authorized = polkit_authorization_result_get_is_authorized(result); |
68 | challenge = polkit_authorization_result_get_is_challenge(result); |
69 | |
70 | /* free()'s before return */ |
71 | if(valid_actions) |
72 | g_object_unref(valid_actions); |
73 | if(auth) |
74 | g_object_unref(auth); |
75 | if(subj) |
76 | g_object_unref(subj); |
77 | if(result) |
78 | g_object_unref(result); |
79 | |
80 | if(authorized) { |
81 | |
82 | if(challenge) |
83 | return AUTHORIZED_BY_PROMPT; |
84 | |
85 | return AUTHORIZED_NATIVELY; |
86 | |
87 | } else if(challenge) |
88 | return UNAUTHORIZED_FAILED_PROMPT; |
89 | |
90 | return UNAUTHORIZED_NATIVELY; |
06701625 |
91 | } |