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profanity/src/database.c

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/*
* database.c
* vim: expandtab:ts=4:sts=4:sw=4
*
* Copyright (C) 2020 Michael Vetter <jubalh@idoru.org>
*
* 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 "config.h"
#include <sys/stat.h>
#include <sqlite3.h>
#include <glib.h>
#include <stdio.h>
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#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "log.h"
#include "common.h"
#include "config/files.h"
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static sqlite3* g_chatlog_database;
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static void _add_to_db(ProfMessage* message, char* type, const Jid* const from_jid, const Jid* const to_jid);
static char* _get_db_filename(ProfAccount* account);
static prof_msg_type_t _get_message_type_type(const char* const type);
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static char*
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_get_db_filename(ProfAccount* account)
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{
return files_file_in_account_data_path(DIR_DATABASE, account->jid, "chatlog.db");
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}
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gboolean
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log_database_init(ProfAccount* account)
{
int ret = sqlite3_initialize();
if (ret != SQLITE_OK) {
log_error("Error initializing SQLite database: %d", ret);
return FALSE;
}
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char* filename = _get_db_filename(account);
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if (!filename) {
return FALSE;
}
ret = sqlite3_open(filename, &g_chatlog_database);
if (ret != SQLITE_OK) {
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const char* err_msg = sqlite3_errmsg(g_chatlog_database);
log_error("Error opening SQLite database: %s", err_msg);
free(filename);
return FALSE;
}
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char* err_msg;
// id is the ID of DB the entry
// from_jid is the senders jid
// to_jid is the receivers jid
// from_resource is the senders resource
// to_jid is the receivers resource
// message is the message text
// timestamp the timestamp like "2020/03/24 11:12:14"
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// type is there to distinguish: message (chat), MUC message (muc), muc pm (mucpm)
// stanza_id is the ID in <message>
// archive_id is the stanza-id from from XEP-0359: Unique and Stable Stanza IDs used for XEP-0313: Message Archive Management
// replace_id is the ID from XEP-0308: Last Message Correction
// encryption is to distinguish: none, omemo, otr, pgp
// marked_read is 0/1 whether a message has been marked as read via XEP-0333: Chat Markers
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char* query = "CREATE TABLE IF NOT EXISTS `ChatLogs` ( `id` INTEGER PRIMARY KEY AUTOINCREMENT, `from_jid` TEXT NOT NULL, `to_jid` TEXT NOT NULL, `from_resource` TEXT, `to_resource` TEXT, `message` TEXT, `timestamp` TEXT, `type` TEXT, `stanza_id` TEXT, `archive_id` TEXT, `replace_id` TEXT, `encryption` TEXT, `marked_read` INTEGER)";
if (SQLITE_OK != sqlite3_exec(g_chatlog_database, query, NULL, 0, &err_msg)) {
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goto out;
}
query = "CREATE TABLE IF NOT EXISTS `DbVersion` ( `dv_id` INTEGER PRIMARY KEY, `version` INTEGER UNIQUE)";
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if (SQLITE_OK != sqlite3_exec(g_chatlog_database, query, NULL, 0, &err_msg)) {
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goto out;
}
query = "INSERT OR IGNORE INTO `DbVersion` (`version`) VALUES('1')";
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if (SQLITE_OK != sqlite3_exec(g_chatlog_database, query, NULL, 0, &err_msg)) {
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goto out;
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}
log_debug("Initialized SQLite database: %s", filename);
free(filename);
return TRUE;
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out:
if (err_msg) {
log_error("SQLite error: %s", err_msg);
sqlite3_free(err_msg);
} else {
log_error("Unknown SQLite error");
}
free(filename);
return FALSE;
}
void
log_database_close(void)
{
if (g_chatlog_database) {
sqlite3_close(g_chatlog_database);
sqlite3_shutdown();
g_chatlog_database = NULL;
}
}
void
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log_database_add_incoming(ProfMessage* message)
{
if (message->to_jid) {
_add_to_db(message, NULL, message->from_jid, message->to_jid);
} else {
Jid* myjid = jid_create(connection_get_fulljid());
_add_to_db(message, NULL, message->from_jid, myjid);
jid_destroy(myjid);
}
}
static void
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_log_database_add_outgoing(char* type, const char* const id, const char* const barejid, const char* const message, const char* const replace_id, prof_enc_t enc)
{
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ProfMessage* msg = message_init();
msg->id = id ? strdup(id) : NULL;
msg->from_jid = jid_create(barejid);
msg->plain = message ? strdup(message) : NULL;
msg->replace_id = replace_id ? strdup(replace_id) : NULL;
msg->timestamp = g_date_time_new_now_local(); // TODO: get from outside. best to have whole ProfMessage from outside
msg->enc = enc;
Jid* myjid = jid_create(connection_get_fulljid());
_add_to_db(msg, type, myjid, msg->from_jid); // TODO: myjid now in profmessage
jid_destroy(myjid);
message_free(msg);
}
void
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log_database_add_outgoing_chat(const char* const id, const char* const barejid, const char* const message, const char* const replace_id, prof_enc_t enc)
{
_log_database_add_outgoing("chat", id, barejid, message, replace_id, enc);
}
void
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log_database_add_outgoing_muc(const char* const id, const char* const barejid, const char* const message, const char* const replace_id, prof_enc_t enc)
{
_log_database_add_outgoing("muc", id, barejid, message, replace_id, enc);
}
void
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log_database_add_outgoing_muc_pm(const char* const id, const char* const barejid, const char* const message, const char* const replace_id, prof_enc_t enc)
{
_log_database_add_outgoing("mucpm", id, barejid, message, replace_id, enc);
}
GSList*
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log_database_get_previous_chat(const gchar* const contact_barejid)
{
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sqlite3_stmt* stmt = NULL;
gchar* query;
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const char* jid = connection_get_fulljid();
Jid* myjid = jid_create(jid);
if (!myjid)
return NULL;
query = sqlite3_mprintf("SELECT * FROM (SELECT `message`, `timestamp`, `from_jid`, `type` from `ChatLogs` WHERE (`from_jid` = '%q' AND `to_jid` = '%q') OR (`from_jid` = '%q' AND `to_jid` = '%q') ORDER BY `timestamp` DESC LIMIT 10) ORDER BY `timestamp` ASC;", contact_barejid, myjid->barejid, myjid->barejid, contact_barejid);
if (!query) {
log_error("log_database_get_previous_chat(): SQL query. could not allocate memory");
return NULL;
}
jid_destroy(myjid);
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int rc = sqlite3_prepare_v2(g_chatlog_database, query, -1, &stmt, NULL);
if (rc != SQLITE_OK) {
log_error("log_database_get_previous_chat(): unknown SQLite error");
return NULL;
}
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GSList* history = NULL;
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while (sqlite3_step(stmt) == SQLITE_ROW) {
// TODO: also save to jid. since now part of profmessage
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char* message = (char*)sqlite3_column_text(stmt, 0);
char* date = (char*)sqlite3_column_text(stmt, 1);
char* from = (char*)sqlite3_column_text(stmt, 2);
char* type = (char*)sqlite3_column_text(stmt, 3);
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ProfMessage* msg = message_init();
msg->from_jid = jid_create(from);
msg->plain = strdup(message);
msg->timestamp = g_date_time_new_from_iso8601(date, NULL);
msg->type = _get_message_type_type(type);
// TODO: later we can get more fields like 'enc'. then we can display the history like regular chats with all info the user enabled.
history = g_slist_append(history, msg);
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}
sqlite3_finalize(stmt);
sqlite3_free(query);
return history;
}
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static const char*
_get_message_type_str(prof_msg_type_t type)
{
switch (type) {
case PROF_MSG_TYPE_CHAT:
return "chat";
case PROF_MSG_TYPE_MUC:
return "muc";
case PROF_MSG_TYPE_MUCPM:
return "mucpm";
case PROF_MSG_TYPE_UNINITIALIZED:
return NULL;
}
return NULL;
}
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static prof_msg_type_t
_get_message_type_type(const char* const type)
{
if (g_strcmp0(type, "chat") == 0) {
return PROF_MSG_TYPE_CHAT;
} else if (g_strcmp0(type, "muc") == 0) {
return PROF_MSG_TYPE_MUC;
} else if (g_strcmp0(type, "mucpm") == 0) {
return PROF_MSG_TYPE_MUCPM;
} else {
return PROF_MSG_TYPE_UNINITIALIZED;
}
}
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static const char*
_get_message_enc_str(prof_enc_t enc)
{
switch (enc) {
case PROF_MSG_ENC_OX:
return "ox";
case PROF_MSG_ENC_PGP:
return "pgp";
case PROF_MSG_ENC_OTR:
return "otr";
case PROF_MSG_ENC_OMEMO:
return "omemo";
case PROF_MSG_ENC_NONE:
return "none";
}
return "none"; // do not return none - return NULL
}
static void
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_add_to_db(ProfMessage* message, char* type, const Jid* const from_jid, const Jid* const to_jid)
{
if (!g_chatlog_database) {
log_debug("log_database_add() called but db is not initialized");
return;
}
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char* err_msg;
gchar* query;
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gchar* date_fmt;
if (message->timestamp) {
date_fmt = g_date_time_format_iso8601(message->timestamp);
} else {
date_fmt = g_date_time_format_iso8601(g_date_time_new_now_local());
}
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const char* enc = _get_message_enc_str(message->enc);
if (!type) {
type = (char*)_get_message_type_str(message->type);
}
query = sqlite3_mprintf("INSERT INTO `ChatLogs` (`from_jid`, `from_resource`, `to_jid`, `to_resource`, `message`, `timestamp`, `stanza_id`, `archive_id`, `replace_id`, `type`, `encryption`) SELECT '%q', '%q', '%q', '%q', '%q', '%q', '%q', '%q', '%q', '%q', '%q' WHERE NOT EXISTS (SELECT 1 FROM `ChatLogs` WHERE `archive_id` = '%q' AND `archive_id` != '')",
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from_jid->barejid,
from_jid->resourcepart ? from_jid->resourcepart : "",
to_jid->barejid,
to_jid->resourcepart ? to_jid->resourcepart : "",
message->plain ? message->plain : "",
date_fmt ? date_fmt : "",
message->id ? message->id : "",
message->stanzaid ? message->stanzaid : "",
message->replace_id ? message->replace_id : "",
type ? type : "",
enc ? enc : "",
message->stanzaid ? message->stanzaid : "");
if (!query) {
log_error("log_database_add(): SQL query. could not allocate memory");
return;
}
g_free(date_fmt);
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if (SQLITE_OK != sqlite3_exec(g_chatlog_database, query, NULL, 0, &err_msg)) {
if (err_msg) {
log_error("SQLite error: %s", err_msg);
sqlite3_free(err_msg);
} else {
log_error("Unknown SQLite error");
}
}
sqlite3_free(query);
}