1 /*****************************************************************************
2 * logger.c : file logging plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2002-2008 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_interface.h>
35 #include <vlc_playlist.h>
36 #include <vlc_charset.h>
41 # define _IONBF 0x0004
49 #define LOG_DIR "Library/Logs/"
52 #define LOG_FILE_TEXT "vlc-log.txt"
53 #define LOG_FILE_HTML "vlc-log.html"
55 #define TEXT_HEADER "-- logger module started --\n"
56 #define TEXT_FOOTER "-- logger module stopped --\n"
59 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n" \
60 " \"http://www.w3.org/TR/html4/strict.dtd\">\n" \
63 " <title>vlc log</title>\n" \
64 " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n" \
66 " <body style=\"background-color: #000000; color: #aaaaaa;\">\n" \
68 " <b>-- logger module started --</b>\n"
70 " <b>-- logger module stopped --</b>\n" \
81 intf_thread_t *p_intf;
86 /*****************************************************************************
87 * intf_sys_t: description and status of log interface
88 *****************************************************************************/
91 msg_subscription_t *p_sub;
95 /*****************************************************************************
97 *****************************************************************************/
98 static int Open ( vlc_object_t * );
99 static void Close ( vlc_object_t * );
101 static void Overflow (msg_cb_data_t *p_sys, msg_item_t *p_item, unsigned overruns);
102 static void TextPrint ( const msg_item_t *, FILE * );
103 static void HtmlPrint ( const msg_item_t *, FILE * );
105 static void SyslogPrint ( const msg_item_t *);
108 /*****************************************************************************
110 *****************************************************************************/
111 static const char *const mode_list[] = { "text", "html"
116 static const char *const mode_list_text[] = { N_("Text"), "HTML"
122 #define LOGMODE_TEXT N_("Log format")
123 #ifndef HAVE_SYSLOG_H
124 #define LOGMODE_LONGTEXT N_("Specify the log format. Available choices are " \
125 "\"text\" (default) and \"html\".")
128 #define LOGMODE_LONGTEXT N_("Specify the log format. Available choices are " \
129 "\"text\" (default), \"html\", and \"syslog\" (special mode to send to " \
130 "syslog instead of file.")
132 #define SYSLOG_FACILITY_TEXT N_("Syslog facility")
133 #define SYSLOG_FACILITY_LONGTEXT N_("Select the syslog facility where logs " \
134 "will be forwarded. Available choices are \"user\" (default), \"daemon\", " \
135 "and \"local0\" through \"local7\".")
137 /* First in list is the default facility used. */
138 #define DEFINE_SYSLOG_FACILITY \
139 DEF( "user", LOG_USER ), \
140 DEF( "daemon", LOG_DAEMON ), \
141 DEF( "local0", LOG_LOCAL0 ), \
142 DEF( "local1", LOG_LOCAL1 ), \
143 DEF( "local2", LOG_LOCAL2 ), \
144 DEF( "local3", LOG_LOCAL3 ), \
145 DEF( "local4", LOG_LOCAL4 ), \
146 DEF( "local5", LOG_LOCAL5 ), \
147 DEF( "local6", LOG_LOCAL6 ), \
148 DEF( "local7", LOG_LOCAL7 )
150 #define DEF( a, b ) a
151 static const char *const fac_name[] = { DEFINE_SYSLOG_FACILITY };
153 #define DEF( a, b ) b
154 static const int fac_number[] = { DEFINE_SYSLOG_FACILITY };
156 enum { fac_entries = sizeof(fac_name)/sizeof(fac_name[0]) };
157 #undef DEFINE_SYSLOG_FACILITY
162 set_shortname( N_( "Logging" ) )
163 set_description( N_("File logging") )
165 set_category( CAT_ADVANCED )
166 set_subcategory( SUBCAT_ADVANCED_MISC )
168 add_file( "logfile", NULL, NULL,
169 N_("Log filename"), N_("Specify the log filename."), false )
170 add_string( "logmode", "text", NULL, LOGMODE_TEXT, LOGMODE_LONGTEXT,
172 change_string_list( mode_list, mode_list_text, 0 )
174 add_string( "syslog-facility", fac_name[0], NULL, SYSLOG_FACILITY_TEXT,
175 SYSLOG_FACILITY_LONGTEXT, true )
176 change_string_list( fac_name, fac_name, 0 )
179 add_obsolete_string( "rrd-file" )
181 set_capability( "interface", 0 )
182 set_callbacks( Open, Close )
185 /*****************************************************************************
186 * Open: initialize and create stuff
187 *****************************************************************************/
188 static int Open( vlc_object_t *p_this )
190 intf_thread_t *p_intf = (intf_thread_t *)p_this;
195 msg_Info( p_intf, "using logger." );
197 /* Allocate instance and initialize some members */
198 p_sys = p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
202 p_sys->msg.p_intf = p_intf;
203 p_sys->msg.i_mode = MODE_TEXT;
204 psz_mode = var_CreateGetString( p_intf, "logmode" );
207 if( !strcmp( psz_mode, "text" ) )
209 else if( !strcmp( psz_mode, "html" ) )
211 p_sys->msg.i_mode = MODE_HTML;
214 else if( !strcmp( psz_mode, "syslog" ) )
216 p_sys->msg.i_mode = MODE_SYSLOG;
221 msg_Warn( p_intf, "invalid log mode `%s', using `text'", psz_mode );
222 p_sys->msg.i_mode = MODE_TEXT;
228 msg_Warn( p_intf, "no log mode specified, using `text'" );
231 if( p_sys->msg.i_mode != MODE_SYSLOG )
233 char *psz_file = config_GetPsz( p_intf, "logfile" );
237 if( asprintf( &psz_file, "%s/"LOG_DIR"/%s", config_GetHomeDir(),
238 (p_sys->msg.i_mode == MODE_HTML) ? LOG_FILE_HTML
239 : LOG_FILE_TEXT ) == -1 )
242 switch( p_sys->msg.i_mode )
245 psz_file = strdup( LOG_FILE_HTML );
249 psz_file = strdup( LOG_FILE_TEXT );
253 msg_Warn( p_intf, "no log filename provided, using `%s'",
257 /* Open the log file and remove any buffering for the stream */
258 msg_Dbg( p_intf, "opening logfile `%s'", psz_file );
259 p_sys->msg.p_file = utf8_fopen( psz_file, "at" );
260 if( p_sys->msg.p_file == NULL )
262 msg_Err( p_intf, "error opening logfile `%s'", psz_file );
267 setvbuf( p_sys->msg.p_file, NULL, _IONBF, 0 );
271 switch( p_sys->msg.i_mode )
274 fputs( HTML_HEADER, p_sys->msg.p_file );
278 fputs( TEXT_HEADER, p_sys->msg.p_file );
285 p_sys->msg.p_file = NULL;
288 char *psz_facility = var_CreateGetString( p_intf, "syslog-facility" );
292 for( size_t i = 0; i < fac_entries; ++i )
294 if( !strcmp( psz_facility, fac_name[i] ) )
296 i_facility = fac_number[i];
303 msg_Warn( p_intf, "invalid syslog facility `%s', using `%s'",
304 psz_facility, fac_name[0] );
305 i_facility = fac_number[0];
307 free( psz_facility );
311 msg_Warn( p_intf, "no syslog facility specified, using `%s'",
313 i_facility = fac_number[0];
316 openlog( "vlc", LOG_PID|LOG_NDELAY, i_facility );
320 p_sys->p_sub = msg_Subscribe( p_intf->p_libvlc, Overflow, &p_sys->msg );
325 /*****************************************************************************
326 * Close: destroy interface stuff
327 *****************************************************************************/
328 static void Close( vlc_object_t *p_this )
330 intf_thread_t *p_intf = (intf_thread_t *)p_this;
331 intf_sys_t *p_sys = p_intf->p_sys;
333 /* Flush the queue and unsubscribe from the message queue */
335 msg_Unsubscribe( p_sys->p_sub );
337 switch( p_sys->msg.i_mode )
340 fputs( HTML_FOOTER, p_sys->msg.p_file );
349 fputs( TEXT_FOOTER, p_sys->msg.p_file );
353 /* Close the log file */
354 if( p_sys->msg.p_file )
355 fclose( p_sys->msg.p_file );
357 /* Destroy structure */
364 static void Overflow (msg_cb_data_t *p_sys, msg_item_t *p_item, unsigned overruns)
366 VLC_UNUSED(overruns);
367 int verbosity = var_CreateGetInteger( p_sys->p_intf, "verbose" );
370 switch( p_item->i_type )
372 case VLC_MSG_WARN: priority = 1; break;
373 case VLC_MSG_DBG: priority = 2; break;
375 if (verbosity < priority)
378 switch( p_sys->i_mode )
381 HtmlPrint( p_item, p_sys->p_file );
385 SyslogPrint( p_item );
390 TextPrint( p_item, p_sys->p_file );
395 static const char ppsz_type[4][11] = {
402 static void TextPrint( const msg_item_t *p_msg, FILE *p_file )
404 fprintf( p_file, "%s%s%s\n", p_msg->psz_module, ppsz_type[p_msg->i_type],
409 static void SyslogPrint( const msg_item_t *p_msg )
411 static const int i_prio[4] = { LOG_INFO, LOG_ERR, LOG_WARNING, LOG_DEBUG };
412 int i_priority = i_prio[p_msg->i_type];
414 if( p_msg->psz_header )
415 syslog( i_priority, "%s %s%s%s", p_msg->psz_header, p_msg->psz_module,
416 ppsz_type[p_msg->i_type], p_msg->psz_msg );
418 syslog( i_priority, "%s%s%s", p_msg->psz_module,
419 ppsz_type[p_msg->i_type], p_msg->psz_msg );
424 static void HtmlPrint( const msg_item_t *p_msg, FILE *p_file )
426 static const char ppsz_color[4][30] = {
427 "<span style=\"color: #ffffff\">",
428 "<span style=\"color: #ff6666\">",
429 "<span style=\"color: #ffff66\">",
430 "<span style=\"color: #aaaaaa\">",
433 fprintf( p_file, "%s%s%s%s</span>\n", p_msg->psz_module,
434 ppsz_type[p_msg->i_type], ppsz_color[p_msg->i_type],