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/**
* Copyright (c) 2022, Timothy Stack
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Timothy Stack nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "lnav.events.hh"
#include "sqlitepp.client.hh"
namespace lnav {
namespace events {
namespace file {
const std::string open::SCHEMA_ID
= "https://lnav.org/event-file-open-v1.schema.json";
const typed_json_path_container<open> open::handlers = typed_json_path_container<open>{
yajlpp::property_handler("$schema").for_field(&open::o_schema)
.with_example(open::SCHEMA_ID),
yajlpp::property_handler("filename")
.with_description("The path of the file that was opened")
.for_field(&open::o_filename),
}
.with_schema_id2(open::SCHEMA_ID)
.with_description2("Event fired when a file is opened.");
const std::string format_detected::SCHEMA_ID
= "https://lnav.org/event-file-format-detected-v1.schema.json";
const typed_json_path_container<format_detected> format_detected::handlers = typed_json_path_container<format_detected>{
yajlpp::property_handler("$schema").for_field(&format_detected::fd_schema)
.with_example(format_detected::SCHEMA_ID),
yajlpp::property_handler("filename")
.with_description("The path of the file for which a matching format was found")
.for_field(&format_detected::fd_filename),
yajlpp::property_handler("format")
.with_description("The name of the format")
.for_field(&format_detected::fd_format),
}
.with_schema_id2(format_detected::SCHEMA_ID)
.with_description2("Event fired when a log format is detected for a file.");
} // namespace file
namespace log {
const std::string msg_detected::SCHEMA_ID
= "https://lnav.org/event-log-msg-detected-v1.schema.json";
static const json_path_container msg_values_handlers = {
yajlpp::pattern_property_handler("(?<name>[\\w\\-]+)")
.with_synopsis("<name>")
.for_field(&msg_detected::md_values),
};
const typed_json_path_container<msg_detected> msg_detected::handlers = typed_json_path_container<msg_detected>{
yajlpp::property_handler("$schema").for_field(&msg_detected::md_schema)
.with_example(msg_detected::SCHEMA_ID),
yajlpp::property_handler("watch-name")
.with_description("The name of the watch expression that matched this log message")
.for_field(&msg_detected::md_watch_name),
yajlpp::property_handler("filename")
.with_description("The path of the file containing the log message")
.for_field(&msg_detected::md_filename),
yajlpp::property_handler("line-number")
.with_description("The line number in the file, starting from zero")
.for_field(&msg_detected::md_line_number),
yajlpp::property_handler("format")
.with_description("The name of the log format that matched this log message")
.for_field(&msg_detected::md_format),
yajlpp::property_handler("timestamp")
.with_description("The timestamp of the log message")
.for_field(&msg_detected::md_timestamp),
yajlpp::property_handler("values")
.with_description("The log message values captured by the log format")
.with_children(msg_values_handlers),
}
.with_schema_id2(msg_detected::SCHEMA_ID)
.with_description2("Event fired when a log message is detected by a watch expression.");
} // namespace log
namespace session {
const std::string loaded::SCHEMA_ID
= "https://lnav.org/event-session-loaded-v1.schema.json";
const typed_json_path_container<loaded> loaded::handlers = typed_json_path_container<loaded>{
yajlpp::property_handler("$schema").for_field(&loaded::l_schema)
.with_example(loaded::SCHEMA_ID),
}
.with_schema_id2(loaded::SCHEMA_ID)
.with_description2("Event fired when a session is loaded.");
} // namespace session
int
register_events_tab(sqlite3* db)
{
static const char* CREATE_EVENTS_TAB_SQL = R"(
CREATE TABLE lnav_events (
ts TEXT NOT NULL DEFAULT(strftime('%Y-%m-%dT%H:%M:%f', 'now')),
content TEXT
)
)";
static const char* DELETE_EVENTS_TRIGGER_SQL = R"(
CREATE TRIGGER lnav_events_cleaner AFTER INSERT ON lnav_events
BEGIN
DELETE FROM lnav_events WHERE rowid <= NEW.rowid - 1000;
END
)";
auto_mem<char> errmsg(sqlite3_free);
if (sqlite3_exec(db, CREATE_EVENTS_TAB_SQL, nullptr, nullptr, errmsg.out())
!= SQLITE_OK)
{
log_error("Unable to create events table: %s", errmsg.in());
}
if (sqlite3_exec(
db, DELETE_EVENTS_TRIGGER_SQL, nullptr, nullptr, errmsg.out())
!= SQLITE_OK)
{
log_error("Unable to create event cleaner trigger: %s", errmsg.in());
}
return 0;
}
void
details::publish(sqlite3* db, const std::string& content)
{
static const char* INSERT_SQL = R"(
INSERT INTO lnav_events (content) VALUES (?)
)";
auto prep_res = prepare_stmt(db, INSERT_SQL, content);
if (prep_res.isErr()) {
log_error("unable to prepare event statement: %s",
prep_res.unwrapErr().c_str());
return;
}
auto exec_res = prep_res.unwrap().execute();
if (exec_res.isErr()) {
log_error("failed to execute insert: %s", exec_res.unwrapErr().c_str());
return;
}
}
} // namespace events
} // namespace lnav
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