mirror of
https://github.com/transmission/transmission
synced 2024-12-27 10:07:40 +00:00
441 lines
11 KiB
C
441 lines
11 KiB
C
/******************************************************************************
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* $Id$
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*
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* Copyright (c) 2005-2008 Transmission authors and contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*****************************************************************************/
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <glib.h>
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#include <glib/gi18n.h>
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#include <glib/gstdio.h>
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#include <libtransmission/transmission.h>
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#include <libtransmission/bencode.h>
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#include <libtransmission/platform.h>
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#include "conf.h"
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#include "util.h"
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static char * gl_confdir = NULL;
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static char * gl_lockpath = NULL;
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/* errstr may be NULL, this might be called before GTK is initialized */
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gboolean
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cf_init(const char *dir, char **errstr)
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{
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if( errstr != NULL )
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*errstr = NULL;
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gl_confdir = g_strdup( dir );
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if( mkdir_p( gl_confdir, 0755 ) )
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return TRUE;
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if( errstr != NULL )
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*errstr = g_strdup_printf( _( "Couldn't create \"%1$s\": %2$s" ),
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gl_confdir, g_strerror(errno) );
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return FALSE;
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}
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/***
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****
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**** Lockfile
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****
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***/
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/* errstr may be NULL, this might be called before GTK is initialized */
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static gboolean
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lockfile(const char * filename, tr_lockfile_state_t *tr_state, char **errstr)
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{
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const tr_lockfile_state_t state = tr_lockfile( filename );
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const gboolean success = state == TR_LOCKFILE_SUCCESS;
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if( errstr ) switch( state ) {
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case TR_LOCKFILE_EOPEN:
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*errstr = g_strdup_printf( _( "Couldn't open \"%1$s\": %2$s" ),
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filename, g_strerror( errno ) );
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break;
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case TR_LOCKFILE_ELOCK:
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*errstr = g_strdup_printf( _( "%s is already running." ),
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g_get_application_name( ) );
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break;
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case TR_LOCKFILE_SUCCESS:
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*errstr = NULL;
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break;
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}
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if( tr_state != NULL)
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*tr_state = state;
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return success;
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}
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static char*
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getLockFilename( void )
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{
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assert( gl_confdir != NULL );
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return g_build_filename( gl_confdir, "lock", NULL );
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}
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static void
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cf_removelocks( void )
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{
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if( gl_lockpath ) {
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g_unlink( gl_lockpath );
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g_free( gl_lockpath );
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}
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}
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/* errstr may be NULL, this might be called before GTK is initialized */
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gboolean
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cf_lock( tr_lockfile_state_t *tr_state, char ** errstr )
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{
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char * path = getLockFilename( );
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const gboolean didLock = lockfile( path, tr_state, errstr );
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if( didLock )
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gl_lockpath = g_strdup( path );
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g_atexit( cf_removelocks );
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g_free( path );
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return didLock;
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}
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/***
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****
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**** Preferences
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****
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***/
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static char*
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getPrefsFilename( void )
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{
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assert( gl_confdir != NULL );
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return g_build_filename( gl_confdir, "settings.json", NULL );
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}
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static tr_benc*
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getPrefs( void )
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{
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static tr_benc dict;
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static gboolean loaded = FALSE;
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if( !loaded )
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{
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char * filename = getPrefsFilename( );
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if( tr_bencLoadJSONFile( filename, &dict ) )
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tr_bencInitDict( &dict, 100 );
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g_free( filename );
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loaded = TRUE;
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}
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return &dict;
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}
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/***
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****
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***/
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int
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pref_int_get( const char * key )
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{
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int64_t i;
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tr_bencDictFindInt( getPrefs( ), key, &i );
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return i;
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}
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void
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pref_int_set( const char * key, int value )
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{
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tr_benc * d = getPrefs( );
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tr_bencDictRemove( d, key );
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tr_bencDictAddInt( d, key, value );
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}
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void
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pref_int_set_default( const char * key, int value )
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{
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if( !tr_bencDictFind( getPrefs( ), key ) )
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pref_int_set( key, value );
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}
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/***
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****
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***/
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gboolean
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pref_flag_get ( const char * key )
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{
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int64_t i;
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tr_bencDictFindInt( getPrefs( ), key, &i );
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return i != 0;
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}
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gboolean
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pref_flag_eval( pref_flag_t val, const char * key )
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{
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switch( val ) {
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case PREF_FLAG_TRUE: return TRUE;
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case PREF_FLAG_FALSE: return FALSE;
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default: return pref_flag_get( key );
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}
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}
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void
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pref_flag_set( const char * key, gboolean value )
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{
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pref_int_set( key, value!=0 );
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}
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void
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pref_flag_set_default( const char * key, gboolean value )
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{
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pref_int_set_default( key, value!=0 );
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}
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/***
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****
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***/
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const char*
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pref_string_get( const char * key )
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{
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const char * str = NULL;
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tr_bencDictFindStr( getPrefs( ), key, &str );
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return str;
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}
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void
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pref_string_set( const char * key, const char * value )
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{
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tr_benc * d = getPrefs( );
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tr_bencDictRemove( d, key );
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tr_bencDictAddStr( d, key, value );
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}
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void
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pref_string_set_default( const char * key, const char * value )
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{
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if( !tr_bencDictFind( getPrefs( ), key ) )
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pref_string_set( key, value );
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}
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/***
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****
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***/
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void
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pref_save( void )
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{
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char * filename = getPrefsFilename( );
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char * path = g_path_get_dirname( filename );
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mkdir_p( path, 0755 );
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tr_bencSaveJSONFile( filename, getPrefs( ) );
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g_free( path );
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g_free( filename );
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}
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/***
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****
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***/
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#if !GLIB_CHECK_VERSION(2,8,0)
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static void
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tr_file_set_contents( const char * filename, const void * out, size_t len, GError* unused UNUSED )
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{
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FILE * fp = fopen( filename, "wb+" );
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if( fp != NULL ) {
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fwrite( out, 1, len, fp );
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fclose( fp );
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}
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}
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#define g_file_set_contents tr_file_set_contents
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#endif
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static char*
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getCompat080PrefsFilename( void )
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{
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assert( gl_confdir != NULL );
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return g_build_filename( g_get_home_dir(), ".transmission", "gtk", "prefs", NULL );
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}
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static char*
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getCompat090PrefsFilename( void )
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{
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assert( gl_confdir != NULL );
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return g_build_filename( g_get_home_dir(), ".transmission", "gtk", "prefs.ini", NULL );
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}
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static char*
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getCompat121PrefsFilename( void )
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{
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return g_build_filename( g_get_user_config_dir(), "transmission", "gtk", "prefs.ini", NULL );
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}
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static void
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translate_08_to_09( const char* oldfile, const char* newfile )
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{
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static struct pref_entry {
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const char* oldkey;
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const char* newkey;
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} pref_table[] = {
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{ "add-behavior-ipc", "add-behavior-ipc"},
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{ "add-behavior-standard", "add-behavior-standard"},
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{ "download-directory", "default-download-directory"},
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{ "download-limit", "download-limit"},
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{ "use-download-limit", "download-limit-enabled" },
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{ "listening-port", "listening-port"},
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{ "use-nat-traversal", "nat-traversal-enabled"},
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{ "use-peer-exchange", "pex-enabled"},
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{ "ask-quit", "prompt-before-exit"},
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{ "ask-download-directory", "prompt-for-download-directory"},
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{ "use-tray-icon", "system-tray-icon-enabled"},
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{ "upload-limit", "upload-limit"},
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{ "use-upload-limit", "upload-limit-enabled"}
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};
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GString * out = g_string_new( NULL );
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gchar * contents = NULL;
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gsize contents_len = 0;
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tr_benc top;
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memset( &top, 0, sizeof(tr_benc) );
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if( g_file_get_contents( oldfile, &contents, &contents_len, NULL )
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&& !tr_bencLoad( contents, contents_len, &top, NULL )
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&& top.type==TYPE_DICT )
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{
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unsigned int i;
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g_string_append( out, "\n[general]\n" );
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for ( i=0; i<G_N_ELEMENTS(pref_table); ++i ) {
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const tr_benc * val = tr_bencDictFind( &top, pref_table[i].oldkey );
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if( val != NULL ) {
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const char * valstr = val->val.s.s;
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if( !strcmp( valstr, "yes" ) ) valstr = "true";
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if( !strcmp( valstr, "no" ) ) valstr = "false";
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g_string_append_printf( out, "%s=%s\n", pref_table[i].newkey, valstr );
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}
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}
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}
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g_file_set_contents( newfile, out->str, out->len, NULL );
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g_string_free( out, TRUE );
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g_free( contents );
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}
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static void
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translate_keyfile_to_json( const char * old_file, const char * new_file )
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{
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tr_benc dict;
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GKeyFile * keyfile;
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gchar ** keys;
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gsize i;
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gsize length;
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static struct pref_entry {
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const char* oldkey;
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const char* newkey;
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} renamed[] = {
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{ "default-download-directory", "download-dir" },
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{ "encrypted-connections-only", "encryption" },
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{ "listening-port", "peer-port" },
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{ "nat-traversal-enabled", "port-forwarding-enabled" },
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{ "open-dialog-folder", "open-dialog-dir" },
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{ "watch-folder", "watch-dir" },
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{ "watch-folder-enabled", "watch-dir-enabled" }
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};
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keyfile = g_key_file_new( );
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g_key_file_load_from_file( keyfile, old_file, 0, NULL );
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length = 0;
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keys = g_key_file_get_keys( keyfile, "general", &length, NULL );
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tr_bencInitDict( &dict, length );
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for( i=0; i<length; ++i )
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{
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guint j;
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const char * key = keys[i];
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gchar * val = g_key_file_get_value( keyfile, "general", key, NULL );
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for( j=0; j<G_N_ELEMENTS(renamed); ++j )
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if( !strcmp( renamed[j].oldkey, key ) )
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key = renamed[j].newkey;
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if( !strcmp(val,"true") || !strcmp(val,"false") )
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tr_bencDictAddInt( &dict, key, !strcmp( val, "true" ) );
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else {
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char * end;
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long l;
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errno = 0;
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l = strtol( val, &end, 10 );
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if( !errno && end && !*end )
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tr_bencDictAddInt( &dict, key, l );
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else
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tr_bencDictAddStr( &dict, key, val );
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}
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g_free( val );
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}
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g_key_file_free( keyfile );
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tr_bencSaveJSONFile( new_file, &dict );
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tr_bencFree( &dict );
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}
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void
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cf_check_older_configs( void )
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{
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char * filename = getPrefsFilename( );
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if( !g_file_test( filename, G_FILE_TEST_IS_REGULAR ) )
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{
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char * key1 = getCompat121PrefsFilename( );
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char * key2 = getCompat090PrefsFilename( );
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char * benc = getCompat080PrefsFilename( );
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if( g_file_test( key1, G_FILE_TEST_IS_REGULAR ) )
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{
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translate_keyfile_to_json( key1, filename );
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}
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else if( g_file_test( key2, G_FILE_TEST_IS_REGULAR ) )
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{
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translate_keyfile_to_json( key2, filename );
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}
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else if( g_file_test( benc, G_FILE_TEST_IS_REGULAR ) )
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{
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char * tmpfile;
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int fd = g_file_open_tmp( "transmission-prefs-XXXXXX", &tmpfile, NULL );
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if( fd != -1 ) close( fd );
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translate_08_to_09( benc, tmpfile );
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translate_keyfile_to_json( tmpfile, filename );
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unlink( tmpfile );
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}
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g_free( benc );
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g_free( key2 );
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g_free( key1 );
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}
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g_free( filename );
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}
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