/*
 * store.h
 * vim: expandtab:ts=4:sts=4:sw=4
 *
 * Copyright (C) 2019 Paul Fariello <paul@fariello.eu>
 *
 * This file is part of Profanity.
 *
 * Profanity is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Profanity 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Profanity.  If not, see <https://www.gnu.org/licenses/>.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link the code of portions of this program with the OpenSSL library under
 * certain conditions as described in each individual source file, and
 * distribute linked combinations including the two.
 *
 * You must obey the GNU General Public License in all respects for all of the
 * code used other than OpenSSL. If you modify file(s) with this exception, you
 * may extend this exception to your version of the file(s), but you are not
 * obligated to do so. If you do not wish to do so, delete this exception
 * statement from your version. If you delete this exception statement from all
 * source files in the program, then also delete it here.
 *
 */
#include <signal/signal_protocol.h>

#include "config.h"

#define OMEMO_STORE_GROUP_IDENTITY           "identity"
#define OMEMO_STORE_GROUP_PREKEYS            "prekeys"
#define OMEMO_STORE_GROUP_SIGNED_PREKEYS     "signed_prekeys"
#define OMEMO_STORE_KEY_DEVICE_ID            "device_id"
#define OMEMO_STORE_KEY_REGISTRATION_ID      "registration_id"
#define OMEMO_STORE_KEY_IDENTITY_KEY_PUBLIC  "identity_key_public"
#define OMEMO_STORE_KEY_IDENTITY_KEY_PRIVATE "identity_key_private"

typedef struct
{
    signal_buffer* public;
    signal_buffer* private;
    uint32_t registration_id;
    GHashTable* trusted;
    bool recv;
} identity_key_store_t;

GHashTable* session_store_new(void);
GHashTable* pre_key_store_new(void);
GHashTable* signed_pre_key_store_new(void);
void identity_key_store_new(identity_key_store_t* identity_key_store);

/**
 * Returns a copy of the serialized session record corresponding to the
 * provided recipient ID + device ID tuple.
 *
 * @param record pointer to a freshly allocated buffer containing the
 *     serialized session record. Unset if no record was found.
 *     The Signal Protocol library is responsible for freeing this buffer.
 * @param address the address of the remote client
 * @return 1 if the session was loaded, 0 if the session was not found, negative on failure
 */
#ifdef HAVE_LIBSIGNAL_LT_2_3_2
int load_session(signal_buffer** record, const signal_protocol_address* address, void* user_data);
#else
int load_session(signal_buffer** record, signal_buffer** user_record, const signal_protocol_address* address, void* user_data);
#endif

/**
 * Returns all known devices with active sessions for a recipient
 *
 * @param pointer to an array that will be allocated and populated with the result
 * @param name the name of the remote client
 * @param name_len the length of the name
 * @return size of the sessions array, or negative on failure
 */
int get_sub_device_sessions(signal_int_list** sessions, const char* name, size_t name_len, void* user_data);

/**
 * Commit to storage the session record for a given
 * recipient ID + device ID tuple.
 *
 * @param address the address of the remote client
 * @param record pointer to a buffer containing the serialized session
 *     record for the remote client
 * @param record_len length of the serialized session record
 * @return 0 on success, negative on failure
 */
#ifdef HAVE_LIBSIGNAL_LT_2_3_2
int store_session(const signal_protocol_address* address, uint8_t* record, size_t record_len, void* user_data);
#else
int store_session(const signal_protocol_address* address, uint8_t* record, size_t record_len, uint8_t* user_record, size_t user_record_len, void* user_data);
#endif

/**
 * Determine whether there is a committed session record for a
 * recipient ID + device ID tuple.
 *
 * @param address the address of the remote client
 * @return 1 if a session record exists, 0 otherwise.
 */
int contains_session(const signal_protocol_address* address, void* user_data);

/**
 * Remove a session record for a recipient ID + device ID tuple.
 *
 * @param address the address of the remote client
 * @return 1 if a session was deleted, 0 if a session was not deleted, negative on error
 */
int delete_session(const signal_protocol_address* address, void* user_data);

/**
 * Remove the session records corresponding to all devices of a recipient ID.
 *
 * @param name the name of the remote client
 * @param name_len the length of the name
 * @return the number of deleted sessions on success, negative on failure
 */
int delete_all_sessions(const char* name, size_t name_len, void* user_data);

/**
 * Load a local serialized PreKey record.
 *
 * @param record pointer to a newly allocated buffer containing the record,
 *     if found. Unset if no record was found.
 *     The Signal Protocol library is responsible for freeing this buffer.
 * @param pre_key_id the ID of the local serialized PreKey record
 * @retval SG_SUCCESS if the key was found
 * @retval SG_ERR_INVALID_KEY_ID if the key could not be found
 */
int load_pre_key(signal_buffer** record, uint32_t pre_key_id, void* user_data);

/**
 * Store a local serialized PreKey record.
 *
 * @param pre_key_id the ID of the PreKey record to store.
 * @param record pointer to a buffer containing the serialized record
 * @param record_len length of the serialized record
 * @return 0 on success, negative on failure
 */
int store_pre_key(uint32_t pre_key_id, uint8_t* record, size_t record_len, void* user_data);

/**
 * Determine whether there is a committed PreKey record matching the
 * provided ID.
 *
 * @param pre_key_id A PreKey record ID.
 * @return 1 if the store has a record for the PreKey ID, 0 otherwise
 */
int contains_pre_key(uint32_t pre_key_id, void* user_data);

/**
 * Delete a PreKey record from local storage.
 *
 * @param pre_key_id The ID of the PreKey record to remove.
 * @return 0 on success, negative on failure
 */
int remove_pre_key(uint32_t pre_key_id, void* user_data);

/**
 * Load a local serialized signed PreKey record.
 *
 * @param record pointer to a newly allocated buffer containing the record,
 *     if found. Unset if no record was found.
 *     The Signal Protocol library is responsible for freeing this buffer.
 * @param signed_pre_key_id the ID of the local signed PreKey record
 * @retval SG_SUCCESS if the key was found
 * @retval SG_ERR_INVALID_KEY_ID if the key could not be found
 */
int load_signed_pre_key(signal_buffer** record, uint32_t signed_pre_key_id, void* user_data);

/**
 * Store a local serialized signed PreKey record.
 *
 * @param signed_pre_key_id the ID of the signed PreKey record to store
 * @param record pointer to a buffer containing the serialized record
 * @param record_len length of the serialized record
 * @return 0 on success, negative on failure
 */
int store_signed_pre_key(uint32_t signed_pre_key_id, uint8_t* record, size_t record_len, void* user_data);

/**
 * Determine whether there is a committed signed PreKey record matching
 * the provided ID.
 *
 * @param signed_pre_key_id A signed PreKey record ID.
 * @return 1 if the store has a record for the signed PreKey ID, 0 otherwise
 */
int contains_signed_pre_key(uint32_t signed_pre_key_id, voidpre { line-height: 125%; }
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#include <glib.h>
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include <stdlib.h>
#include <string.h>

#include <stabber.h>
#include <expect.h>

#include "proftest.h"

void
sends_room_join(void **state)
{
    prof_connect();

    prof_input("/join testroom@conference.localhost");

    assert_true(stbbr_last_received(
        "<presence id='*' to='testroom@conference.localhost/stabber'>"
            "<x xmlns='http://jabber.org/protocol/muc'/>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
        "</presence>"
    ));
}

void
sends_room_join_with_nick(void **state)
{
    prof_connect();

    prof_input("/join testroom@conference.localhost nick testnick");

    assert_true(stbbr_last_received(
        "<presence id='*' to='testroom@conference.localhost/testnick'>"
            "<x xmlns='http://jabber.org/protocol/muc'/>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
        "</presence>"
    ));
}

void
sends_room_join_with_password(void **state)
{
    prof_connect();

    prof_input("/join testroom@conference.localhost password testpassword");

    assert_true(stbbr_last_received(
        "<presence id='*' to='testroom@conference.localhost/stabber'>"
            "<x xmlns='http://jabber.org/protocol/muc'>"
                "<password>testpassword</password>"
            "</x>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
        "</presence>"
    ));
}

void
sends_room_join_with_nick_and_password(void **state)
{
    prof_connect();

    prof_input("/join testroom@conference.localhost nick testnick password testpassword");

    assert_true(stbbr_last_received(
        "<presence id='*' to='testroom@conference.localhost/testnick'>"
            "<x xmlns='http://jabber.org/protocol/muc'>"
                "<password>testpassword</password>"
            "</x>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
        "</presence>"
    ));
}

void
shows_role_and_affiliation_on_join(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");

    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));
}

void
shows_subject_on_join(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost'>"
            "<subject>Test room subject</subject>"
            "<body>anothernick has set the subject to: Test room subject</body>"
        "</message>"
    );

    assert_true(prof_output_regex("Room subject: .+Test room subject"));
}

void
shows_history_message(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/testoccupant'>"
            "<body>an old message</body>"
            "<delay xmlns='urn:xmpp:delay' stamp='2015-12-19T23:55:25Z' from='testroom@conference.localhost'/>"
            "<x xmlns='jabber:x:delay' stamp='20151219T23:55:25'/>"
        "</message>"
    );

    assert_true(prof_output_regex("testoccupant: an old message"));
}

void
shows_occupant_join(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    stbbr_send(
        "<presence to='stabber@localhost/profanity' from='testroom@conference.localhost/testoccupant'>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='someuser@someserver.org/work' affiliation='none'/>"
            "</x>"
        "</presence>"
    );

    assert_true(prof_output_exact("-> testoccupant has joined the room, role: participant, affiliation: none"));
}

void
shows_message(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/testoccupant'>"
            "<body>a new message</body>"
        "</message>"
    );

    assert_true(prof_output_regex("testoccupant: .+a new message"));
}

void
shows_me_message_from_occupant(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/testoccupant'>"
            "<body>/me did something</body>"
        "</message>"
    );

    assert_true(prof_output_exact("*testoccupant did something"));
}

void
shows_me_message_from_self(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<body>/me did something</body>"
        "</message>"
    );

    assert_true(prof_output_exact("*stabber did something"));
}

void
shows_all_messages_in_console_when_window_not_focussed(void **state)
{
    prof_connect();

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    prof_input("/win 1");
    assert_true(prof_output_exact("Profanity. Type /help for help information."));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/testoccupant'>"
            "<body>a new message</body>"
        "</message>"
    );

    assert_true(prof_output_exact("<< room message: testoccupant in testroom@conference.localhost (win 2)"));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/anotheroccupant'>"
            "<body>some other message</body>"
        "</message>"
    );

    assert_true(prof_output_exact("<< room message: anotheroccupant in testroom@conference.localhost (win 2)"));
}

void
shows_first_message_in_console_when_window_not_focussed(void **state)
{
    prof_connect();

    prof_input("/console muc first");
    assert_true(prof_output_exact("Console MUC messages set: first"));

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    prof_input("/win 1");
    assert_true(prof_output_exact("Profanity. Type /help for help information."));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/testoccupant'>"
            "<body>a new message</body>"
        "</message>"
    );

    assert_true(prof_output_exact("<< room message: testroom@conference.localhost (win 2)"));
    prof_input("/clear");
    prof_input("/about");
    assert_true(prof_output_exact("Type '/help' to show complete help."));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/anotheroccupant'>"
            "<body>some other message</body>"
        "</message>"
    );

    prof_timeout(2);
    assert_false(prof_output_exact("<< room message: testroom@conference.localhost (win 2)"));
    prof_timeout_reset();
}

void
shows_no_message_in_console_when_window_not_focussed(void **state)
{
    prof_connect();

    prof_input("/console muc none");
    assert_true(prof_output_exact("Console MUC messages set: none"));

    stbbr_for_id("prof_join_4",
        "<presence id='prof_join_4' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
            "<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
            "<x xmlns='http://jabber.org/protocol/muc#user'>"
                "<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
            "</x>"
            "<status code='110'/>"
        "</presence>"
    );

    prof_input("/join testroom@conference.localhost");
    assert_true(prof_output_exact("-> You have joined the room as stabber, role: participant, affiliation: none"));

    prof_input("/win 1");
    assert_true(prof_output_exact("Profanity. Type /help for help information."));

    stbbr_send(
        "<message type='groupchat' to='stabber@localhost/profanity' from='testroom@conference.localhost/testoccupant'>"
            "<body>a new message</body>"
        "</message>"
    );

    prof_timeout(2);
    assert_false(prof_output_exact("testroom@conference.localhost (win 2)"));
    prof_timeout_reset();
}