1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*
This file is part of GNUnet.
Copyright (C) 2020--2021 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Tobias Frisch
* @file src/messenger/messenger_api_contact_store.h
* @brief messenger api: client implementation of GNUnet MESSENGER service
*/
#ifndef GNUNET_MESSENGER_API_CONTACT_STORE_H
#define GNUNET_MESSENGER_API_CONTACT_STORE_H
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_identity_service.h"
struct GNUNET_MESSENGER_Contact;
struct GNUNET_MESSENGER_ContactStore
{
struct GNUNET_CONTAINER_MultiHashMap *anonymous;
struct GNUNET_CONTAINER_MultiHashMap *contacts;
};
/**
* Initializes a contact store as fully empty.
*
* @param[out] store Contact store
*/
void
init_contact_store (struct GNUNET_MESSENGER_ContactStore *store);
/**
* Clears a contact store, wipes its content and deallocates its memory.
*
* @param[in,out] store Contact store
*/
void
clear_contact_store (struct GNUNET_MESSENGER_ContactStore *store);
/**
* Returns a contact using the hash of a specific public key. In case the anonymous
* key gets used by the requested contact, it will use its provided member
* <i>context</i> to select the matching contact from the <i>store</i>.
*
* In case there is no contact stored which uses the given key or context,
* NULL gets returned.
*
* @param[in,out] store Contact store
* @param[in] context Member context
* @param[in] key_hash Hash of public key
*/
struct GNUNET_MESSENGER_Contact*
get_store_contact_raw (struct GNUNET_MESSENGER_ContactStore *store,
const struct GNUNET_HashCode *context,
const struct GNUNET_HashCode *key_hash);
/**
* Returns a contact using a specific public key. In case the anonymous
* key gets used by the requested contact, it will use its provided member
* <i>context</i> to select the matching contact from the <i>store</i>.
*
* In case there is no contact stored which uses the given key or context,
* a new contact will be created automatically.
*
* The function returns NULL if an error occurs during allocation
* or validation of the contacts key.
*
* @param[in,out] store Contact store
* @param[in] context Member context
* @param[in] pubkey Public key of EGO
*/
struct GNUNET_MESSENGER_Contact*
get_store_contact (struct GNUNET_MESSENGER_ContactStore *store,
const struct GNUNET_HashCode *context,
const struct GNUNET_IDENTITY_PublicKey *pubkey);
/**
* Moves a <i>contact</i> from the <i>store</i> to another location
* matching a given public key and member <i>context</i>.
*
* This function allows changes of keys or changes of member contexts!
*
* @param[in,out] store Contact store
* @param[in,out] contact Contact
* @param[in] context Member context
* @param[in] next_context Member context
* @param[in] pubkey Public key of EGO
*/
void
update_store_contact (struct GNUNET_MESSENGER_ContactStore *store,
struct GNUNET_MESSENGER_Contact* contact,
const struct GNUNET_HashCode *context,
const struct GNUNET_HashCode *next_context,
const struct GNUNET_IDENTITY_PublicKey *pubkey);
/**
* Removes a <i>contact</i> from the <i>store</i> which uses
* a given member <i>context</i>.
*
* @param[in,out] store Contact store
* @param[in,out] contact Contact
* @param[in] context Member context
*/
void
remove_store_contact (struct GNUNET_MESSENGER_ContactStore *store,
struct GNUNET_MESSENGER_Contact* contact,
const struct GNUNET_HashCode *context);
#endif //GNUNET_MESSENGER_API_CONTACT_STORE_H
|
