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>
36 #include <vlc_charset.h>
42 # include <android/log.h>
45 #define LOG_FILE_TEXT "vlc-log.txt"
46 #define LOG_FILE_HTML "vlc-log.html"
48 #define TEXT_HEADER "\xEF\xBB\xBF-- logger module started --\n"
49 #define TEXT_FOOTER "-- logger module stopped --\n"
52 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n" \
53 " \"http://www.w3.org/TR/html4/strict.dtd\">\n" \
56 " <title>vlc log</title>\n" \
57 " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n" \
59 " <body style=\"background-color: #000000; color: #aaaaaa;\">\n" \
61 " <strong>-- logger module started --</strong>\n"
63 " <strong>-- logger module stopped --</strong>\n" \
72 /*****************************************************************************
73 * intf_sys_t: description and status of log interface
74 *****************************************************************************/
81 /*****************************************************************************
83 *****************************************************************************/
84 static int Open ( vlc_object_t * );
85 static void Close ( vlc_object_t * );
87 static void TextPrint(void *, int, const vlc_log_t *, const char *, va_list);
88 static void HtmlPrint(void *, int, const vlc_log_t *, const char *, va_list);
90 static void SyslogPrint(void *, int, const vlc_log_t *, const char *, va_list);
93 static void AndroidPrint(void *, int, const vlc_log_t *, const char *, va_list);
96 /*****************************************************************************
98 *****************************************************************************/
99 static const char *const mode_list[] = { "text", "html"
107 static const char *const mode_list_text[] = { N_("Text"), "HTML"
116 #define LOGMODE_TEXT N_("Log format")
117 #define LOGMODE_LONGTEXT N_("Specify the logging format.")
120 #define SYSLOG_FACILITY_TEXT N_("Syslog facility")
121 #define SYSLOG_FACILITY_LONGTEXT N_("Select the syslog facility where logs " \
122 "will be forwarded.")
124 /* First in list is the default facility used. */
125 #define DEFINE_SYSLOG_FACILITY \
126 DEF( "user", LOG_USER ), \
127 DEF( "daemon", LOG_DAEMON ), \
128 DEF( "local0", LOG_LOCAL0 ), \
129 DEF( "local1", LOG_LOCAL1 ), \
130 DEF( "local2", LOG_LOCAL2 ), \
131 DEF( "local3", LOG_LOCAL3 ), \
132 DEF( "local4", LOG_LOCAL4 ), \
133 DEF( "local5", LOG_LOCAL5 ), \
134 DEF( "local6", LOG_LOCAL6 ), \
135 DEF( "local7", LOG_LOCAL7 )
137 #define DEF( a, b ) a
138 static const char *const fac_name[] = { DEFINE_SYSLOG_FACILITY };
140 #define DEF( a, b ) b
141 static const int fac_number[] = { DEFINE_SYSLOG_FACILITY };
143 enum { fac_entries = sizeof(fac_name)/sizeof(fac_name[0]) };
144 #undef DEFINE_SYSLOG_FACILITY
148 #define LOGVERBOSE_TEXT N_("Verbosity")
149 #define LOGVERBOSE_LONGTEXT N_("Select the verbosity to use for log or -1 to " \
150 "use the same verbosity given by --verbose.")
153 set_shortname( N_( "Logging" ) )
154 set_description( N_("File logging") )
156 set_category( CAT_ADVANCED )
157 set_subcategory( SUBCAT_ADVANCED_MISC )
159 add_savefile( "logfile", NULL,
160 N_("Log filename"), N_("Specify the log filename."), false )
161 add_string( "logmode", "text", LOGMODE_TEXT, LOGMODE_LONGTEXT,
163 change_string_list( mode_list, mode_list_text )
165 add_string( "syslog-facility", fac_name[0], SYSLOG_FACILITY_TEXT,
166 SYSLOG_FACILITY_LONGTEXT, true )
167 change_string_list( fac_name, fac_name )
169 add_integer( "log-verbose", -1, LOGVERBOSE_TEXT, LOGVERBOSE_LONGTEXT,
172 add_obsolete_string( "rrd-file" )
174 set_capability( "interface", 0 )
175 set_callbacks( Open, Close )
178 /*****************************************************************************
179 * Open: initialize and create stuff
180 *****************************************************************************/
181 static int Open( vlc_object_t *p_this )
183 intf_thread_t *p_intf = (intf_thread_t *)p_this;
187 msg_Info( p_intf, "using logger." );
189 /* Allocate instance and initialize some members */
190 p_sys = p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
194 p_sys->p_file = NULL;
195 vlc_log_cb cb = TextPrint;
196 const char *filename = LOG_FILE_TEXT, *header = TEXT_HEADER;
197 p_sys->footer = TEXT_FOOTER;
199 char *mode = var_InheritString( p_intf, "logmode" );
202 if( !strcmp( mode, "html" ) )
204 p_sys->footer = HTML_FOOTER;
205 header = HTML_HEADER;
209 else if( !strcmp( mode, "syslog" ) )
213 else if( !strcmp( mode, "android" ) )
216 else if( strcmp( mode, "text" ) )
217 msg_Warn( p_intf, "invalid log mode `%s', using `text'", mode );
222 if( cb == SyslogPrint )
225 char *psz_facility = var_InheritString( p_intf, "syslog-facility" );
229 for( size_t i = 0; i < fac_entries; ++i )
231 if( !strcmp( psz_facility, fac_name[i] ) )
233 i_facility = fac_number[i];
240 msg_Warn( p_intf, "invalid syslog facility `%s', using `%s'",
241 psz_facility, fac_name[0] );
242 i_facility = fac_number[0];
244 free( psz_facility );
248 msg_Warn( p_intf, "no syslog facility specified, using `%s'",
250 i_facility = fac_number[0];
253 openlog( "vlc", LOG_PID|LOG_NDELAY, i_facility );
254 p_sys->p_file = NULL;
259 if( cb == AndroidPrint )
266 char *psz_file = var_InheritString( p_intf, "logfile" );
270 # define LOG_DIR "Library/Logs"
271 char *home = config_GetUserDir(VLC_HOME_DIR);
273 || asprintf( &psz_file, "%s/"LOG_DIR"/%s", home,
279 msg_Warn( p_intf, "no log filename provided, using `%s'",
285 /* Open the log file and remove any buffering for the stream */
286 msg_Dbg( p_intf, "opening logfile `%s'", filename );
287 p_sys->p_file = vlc_fopen( filename, "at" );
289 if( p_sys->p_file == NULL )
291 msg_Err( p_intf, "error opening logfile `%s': %m", filename );
295 setvbuf( p_sys->p_file, NULL, _IONBF, 0 );
296 fputs( header, p_sys->p_file );
299 vlc_LogSet( p_intf->p_libvlc, cb, p_intf );
303 /*****************************************************************************
304 * Close: destroy interface stuff
305 *****************************************************************************/
306 static void Close( vlc_object_t *p_this )
308 intf_thread_t *p_intf = (intf_thread_t *)p_this;
309 intf_sys_t *p_sys = p_intf->p_sys;
311 /* Flush the queue and unsubscribe from the message queue */
312 vlc_LogSet( p_intf->p_libvlc, NULL, NULL );
314 /* Close the log file */
316 if( p_sys->p_file == NULL )
322 fputs( p_sys->footer, p_sys->p_file );
323 fclose( p_sys->p_file );
326 /* Destroy structure */
330 static bool IgnoreMessage( intf_thread_t *p_intf, int type )
332 /* TODO: cache value... */
333 int verbosity = var_InheritInteger( p_intf, "log-verbose" );
335 verbosity = var_InheritInteger( p_intf, "verbose" );
337 return verbosity < 0 || verbosity < (type - VLC_MSG_ERR);
344 static const char ppsz_type[4][9] = {
352 static const android_LogPriority prioritytype[4] = {
359 static void AndroidPrint( void *opaque, int type, const vlc_log_t *item,
360 const char *fmt, va_list ap )
363 intf_thread_t *p_intf = opaque;
365 if( IgnoreMessage( p_intf, type ) )
368 int canc = vlc_savecancel();
369 __android_log_vprint(prioritytype[type], "VLC", fmt, ap);
370 vlc_restorecancel( canc );
374 static void TextPrint( void *opaque, int type, const vlc_log_t *item,
375 const char *fmt, va_list ap )
377 intf_thread_t *p_intf = opaque;
378 FILE *stream = p_intf->p_sys->p_file;
380 if( IgnoreMessage( p_intf, type ) )
383 int canc = vlc_savecancel();
385 fprintf( stream, "%s%s: ", item->psz_module, ppsz_type[type] );
386 vfprintf( stream, fmt, ap );
387 putc_unlocked( '\n', stream );
388 funlockfile( stream );
389 vlc_restorecancel( canc );
393 static void SyslogPrint( void *opaque, int type, const vlc_log_t *item,
394 const char *fmt, va_list ap )
396 static const int i_prio[4] = { LOG_INFO, LOG_ERR, LOG_WARNING, LOG_DEBUG };
398 intf_thread_t *p_intf = opaque;
400 int i_priority = i_prio[type];
402 if( IgnoreMessage( p_intf, type )
403 || unlikely(vasprintf( &str, fmt, ap ) == -1) )
406 int canc = vlc_savecancel();
407 if( item->psz_header != NULL )
408 syslog( i_priority, "[%s] %s%s: %s", item->psz_header,
409 item->psz_module, ppsz_type[type], str );
411 syslog( i_priority, "%s%s: %s",
412 item->psz_module, ppsz_type[type], str );
413 vlc_restorecancel( canc );
418 static void HtmlPrint( void *opaque, int type, const vlc_log_t *item,
419 const char *fmt, va_list ap )
421 static const unsigned color[4] = {
422 0xffffff, 0xff6666, 0xffff66, 0xaaaaaa,
425 intf_thread_t *p_intf = opaque;
426 FILE *stream = p_intf->p_sys->p_file;
428 if( IgnoreMessage( p_intf, type ) )
431 int canc = vlc_savecancel();
433 fprintf( stream, "%s%s: <span style=\"color: #%06x\">",
434 item->psz_module, ppsz_type[type], color[type] );
435 /* FIXME: encode special ASCII characters */
436 vfprintf( stream, fmt, ap );
437 fputs( "</span>\n", stream );
438 funlockfile( stream );
439 vlc_restorecancel( canc );