pidgin/pidgin

GSoC History API including sqlite history adapter

2021-10-12, James Culver
741992355ead
GSoC History API including sqlite history adapter

The History API has been created to drive all message handling in purple3. It will be used to update existing messages for edits, reactions, pinning, read/deliver receipts, etc. The API uses an adapter pattern, to abstract out backends, but provides a SQLite3 backend by default.

It also provides search capabilities using a custom query language that can easily be expanded over time. It will be use by both the end user to search messages and the frontends to implement features like a pinned messages button. A command line utility is also provided for searching outside of the program itself.

## Remaining Items

**These all will most likely be done by the Pidgin core team after GSoC when we figure out exactly how to solve them.**

Need to store database in purple config directory
* Gary has spent some time looking at this and it looks like the purple-history cli will need to become a purple-ui to make this work write as in the future other adapters will be plugins.

Other things to consider:
- For simplicity, the SqliteHistoryAdapter is parsing the query itself, but for consistency having `PurpleHistoryAdapter` parse the query and pass tokens to the subclass might be something we want to do.

Testing Done:
## Unit Tests
History Manager
History Adapter

## Integration Tests
purplehistorycore created for integration tests.
PurpleSqliteHistoryAdapter functionality tested:
- Creates proper db schema
- Writes logs
- Reads logs
- Queries using query language
- Deletes using query language

Bugs closed: PIDGIN-17526, PIDGIN-17532, PIDGIN-17533, PIDGIN-17534

Reviewed at https://reviews.imfreedom.org/r/877/
/*
* Purple - Internet Messaging Library
* Copyright (C) Pidgin Developers <devel@pidgin.im>
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, see <https://www.gnu.org/licenses/>.
*/
#if !defined(PURPLE_GLOBAL_HEADER_INSIDE) && !defined(PURPLE_COMPILATION)
# error "only <purple.h> may be included directly"
#endif
#ifndef PURPLE_DEBUG_H
#define PURPLE_DEBUG_H
/**
* SECTION:debug
* @section_id: libpurple-debug
* @short_description: Developer Logging API
* @title: Debug API
*/
#include <glib.h>
#include <glib-object.h>
#include <stdarg.h>
G_BEGIN_DECLS
/**
* PurpleDebugLevel:
* @PURPLE_DEBUG_ALL: All debug levels.
* @PURPLE_DEBUG_MISC: General chatter.
* @PURPLE_DEBUG_INFO: General operation Information.
* @PURPLE_DEBUG_WARNING: Warnings.
* @PURPLE_DEBUG_ERROR: Errors.
* @PURPLE_DEBUG_FATAL: Fatal errors.
*
* Available debug levels.
*/
typedef enum {
PURPLE_DEBUG_ALL = 0,
PURPLE_DEBUG_MISC,
PURPLE_DEBUG_INFO,
PURPLE_DEBUG_WARNING,
PURPLE_DEBUG_ERROR,
PURPLE_DEBUG_FATAL
} PurpleDebugLevel;
#include "purpledebugui.h"
/**
* purple_debug:
* @level: The debug level.
* @category: The category (or %NULL).
* @format: The format string.
* @...: The parameters to insert into the format string.
*
* Outputs debug information.
*/
void purple_debug(PurpleDebugLevel level, const gchar *category, const gchar *format, ...) G_GNUC_PRINTF(3, 4);
/**
* purple_debug_misc:
* @category: The category or %NULL.
* @format: The format string.
* @...: The parameters to insert into the format string.
*
* Outputs misc. level debug information.
*
* This is a wrapper for purple_debug(), and uses #PURPLE_DEBUG_MISC as the
* level.
*
* See purple_debug().
*/
void purple_debug_misc(const gchar *category, const gchar *format, ...) G_GNUC_PRINTF(2, 3);
/**
* purple_debug_info:
* @category: The category (or %NULL).
* @format: The format string.
* @...: The parameters to insert into the format string.
*
* Outputs info level debug information.
*
* This is a wrapper for purple_debug(), and uses #PURPLE_DEBUG_INFO as
* the level.
*
* See purple_debug().
*/
void purple_debug_info(const gchar *category, const gchar *format, ...) G_GNUC_PRINTF(2, 3);
/**
* purple_debug_warning:
* @category: The category or %NULL.
* @format: The format string.
* @...: The parameters to insert into the format string.
*
* Outputs warning level debug information.
*
* This is a wrapper for purple_debug(), and uses #PURPLE_DEBUG_WARNING as the
* level.
*
* See purple_debug().
*/
void purple_debug_warning(const gchar *category, const gchar *format, ...) G_GNUC_PRINTF(2, 3);
/**
* purple_debug_error:
* @category: The category or %NULL.
* @format: The format string.
* @...: The parameters to insert into the format string.
*
* Outputs error level debug information.
*
* This is a wrapper for purple_debug(), and uses #PURPLE_DEBUG_ERROR as the
* level.
*
* See purple_debug().
*/
void purple_debug_error(const gchar *category, const gchar *format, ...) G_GNUC_PRINTF(2, 3);
/**
* purple_debug_fatal:
* @category: The category (or %NULL).
* @format: The format string.
* @...: The parameters to insert into the format string.
*
* Outputs fatal error level debug information.
*
* This is a wrapper for purple_debug(), and uses #PURPLE_DEBUG_ERROR as the
* level.
*
* See purple_debug().
*/
void purple_debug_fatal(const gchar *category, const gchar *format, ...) G_GNUC_PRINTF(2, 3);
/**
* purple_debug_set_enabled:
* @enabled: %TRUE to enable debug output or %FALSE to disable it.
*
* Enable or disable printing debug output to the console.
*/
void purple_debug_set_enabled(gboolean enabled);
/**
* purple_debug_is_enabled:
*
* Check if console debug output is enabled.
*
* Returns: %TRUE if debugging is enabled, %FALSE if it is not.
*/
gboolean purple_debug_is_enabled(void);
/**
* purple_debug_set_verbose:
* @verbose: %TRUE to enable verbose debugging or %FALSE to disable it.
*
* Enable or disable verbose debugging. This ordinarily should only be called
* by purple_debug_init(), but there are cases where this can be useful for
* plugins.
*/
void purple_debug_set_verbose(gboolean verbose);
/**
* purple_debug_is_verbose:
*
* Check if verbose logging is enabled.
*
* Returns: %TRUE if verbose debugging is enabled, %FALSE if it is not.
*/
gboolean purple_debug_is_verbose(void);
/**
* purple_debug_set_unsafe:
* @unsafe: %TRUE to enable debug logging of messages that could potentially
* contain passwords and other sensitive information. %FALSE to
* disable it.
*
* Enable or disable unsafe debugging. This ordinarily should only be called by
* purple_debug_init(), but there are cases where this can be useful for
* plugins.
*/
void purple_debug_set_unsafe(gboolean unsafe);
/**
* purple_debug_is_unsafe:
*
* Check if unsafe debugging is enabled. Defaults to %FALSE.
*
* Returns: %TRUE if the debug logging of all messages is enabled, %FALSE if
* messages that could potentially contain passwords and other
* sensitive information are not logged.
*/
gboolean purple_debug_is_unsafe(void);
/**
* purple_debug_set_colored:
* @colored: %TRUE to enable colored output, %FALSE to disable it.
*
* Enable or disable colored output for bash console.
*/
void purple_debug_set_colored(gboolean colored);
/******************************************************************************
* UI Registration Functions
*****************************************************************************/
/**
* purple_debug_set_ui:
* @ui: The UI operations structure.
*
* Sets the UI operations structure to be used when outputting debug
* information.
*
* Since: 3.0.0
*/
void purple_debug_set_ui(PurpleDebugUi *ui);
/**
* purple_debug_get_ui:
*
* Get the #PurpleDebugUi instance used for outputting debug information.
*
* Returns: (transfer none): The #PurpleDebugUi instance in use.
*
* Since: 3.0.0
*/
PurpleDebugUi *purple_debug_get_ui(void);
/******************************************************************************
* Debug Subsystem
*****************************************************************************/
/**
* purple_debug_init:
*
* Initializes the debug subsystem.
*/
void purple_debug_init(void);
G_END_DECLS
#endif /* PURPLE_DEBUG_H */