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>
43 # include <android/log.h>
46 #define LOG_FILE_TEXT "vlc-log.txt"
47 #define LOG_FILE_HTML "vlc-log.html"
49 #define TEXT_HEADER "\xEF\xBB\xBF-- logger module started --\n"
50 #define TEXT_FOOTER "-- logger module stopped --\n"
53 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n" \
54 " \"http://www.w3.org/TR/html4/strict.dtd\">\n" \
57 " <title>vlc log</title>\n" \
58 " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n" \
60 " <body style=\"background-color: #000000; color: #aaaaaa;\">\n" \
62 " <strong>-- logger module started --</strong>\n"
64 " <strong>-- logger module stopped --</strong>\n" \
73 /*****************************************************************************
74 * intf_sys_t: description and status of log interface
75 *****************************************************************************/
83 /*****************************************************************************
85 *****************************************************************************/
86 static int Open ( vlc_object_t * );
87 static void Close ( vlc_object_t * );
89 static void TextPrint(void *, int, const vlc_log_t *, const char *, va_list);
90 static void HtmlPrint(void *, int, const vlc_log_t *, const char *, va_list);
92 static void SyslogPrint(void *, int, const vlc_log_t *, const char *, va_list);
95 static void AndroidPrint(void *, int, const vlc_log_t *, const char *, va_list);
98 /*****************************************************************************
100 *****************************************************************************/
101 static const char *const mode_list[] = { "text", "html"
109 static const char *const mode_list_text[] = { N_("Text"), "HTML"
118 #define LOGMODE_TEXT N_("Log format")
119 #define LOGMODE_LONGTEXT N_("Specify the logging format.")
122 #define SYSLOG_IDENT_TEXT N_("Syslog ident")
123 #define SYSLOG_IDENT_LONGTEXT N_("Set the ident that VLC would use when " \
124 "logging to syslog.")
126 #define SYSLOG_FACILITY_TEXT N_("Syslog facility")
127 #define SYSLOG_FACILITY_LONGTEXT N_("Select the syslog facility where logs " \
128 "will be forwarded.")
130 /* First in list is the default facility used. */
131 #define DEFINE_SYSLOG_FACILITY \
132 DEF( "user", LOG_USER ), \
133 DEF( "daemon", LOG_DAEMON ), \
134 DEF( "local0", LOG_LOCAL0 ), \
135 DEF( "local1", LOG_LOCAL1 ), \
136 DEF( "local2", LOG_LOCAL2 ), \
137 DEF( "local3", LOG_LOCAL3 ), \
138 DEF( "local4", LOG_LOCAL4 ), \
139 DEF( "local5", LOG_LOCAL5 ), \
140 DEF( "local6", LOG_LOCAL6 ), \
141 DEF( "local7", LOG_LOCAL7 )
143 #define DEF( a, b ) a
144 static const char *const fac_name[] = { DEFINE_SYSLOG_FACILITY };
146 #define DEF( a, b ) b
147 static const int fac_number[] = { DEFINE_SYSLOG_FACILITY };
149 enum { fac_entries = sizeof(fac_name)/sizeof(fac_name[0]) };
150 #undef DEFINE_SYSLOG_FACILITY
154 #define LOGVERBOSE_TEXT N_("Verbosity")
155 #define LOGVERBOSE_LONGTEXT N_("Select the verbosity to use for log or -1 to " \
156 "use the same verbosity given by --verbose.")
159 set_shortname( N_( "Logging" ) )
160 set_description( N_("File logging") )
162 set_category( CAT_ADVANCED )
163 set_subcategory( SUBCAT_ADVANCED_MISC )
165 add_savefile( "logfile", NULL,
166 N_("Log filename"), N_("Specify the log filename."), false )
167 add_string( "logmode", "text", LOGMODE_TEXT, LOGMODE_LONGTEXT,
169 change_string_list( mode_list, mode_list_text )
171 add_string( "syslog-ident", "vlc", SYSLOG_IDENT_TEXT,
172 SYSLOG_IDENT_LONGTEXT, true )
173 add_string( "syslog-facility", fac_name[0], SYSLOG_FACILITY_TEXT,
174 SYSLOG_FACILITY_LONGTEXT, true )
175 change_string_list( fac_name, fac_name )
177 add_integer( "log-verbose", -1, LOGVERBOSE_TEXT, LOGVERBOSE_LONGTEXT,
180 add_obsolete_string( "rrd-file" )
182 set_capability( "interface", 0 )
183 set_callbacks( Open, Close )
186 /*****************************************************************************
187 * Open: initialize and create stuff
188 *****************************************************************************/
189 static int Open( vlc_object_t *p_this )
191 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->p_file = NULL;
203 vlc_log_cb cb = TextPrint;
204 const char *filename = LOG_FILE_TEXT, *header = TEXT_HEADER;
205 p_sys->footer = TEXT_FOOTER;
207 char *mode = var_InheritString( p_intf, "logmode" );
210 if( !strcmp( mode, "html" ) )
212 p_sys->footer = HTML_FOOTER;
213 header = HTML_HEADER;
217 else if( !strcmp( mode, "syslog" ) )
221 else if( !strcmp( mode, "android" ) )
224 else if( strcmp( mode, "text" ) )
225 msg_Warn( p_intf, "invalid log mode `%s', using `text'", mode );
230 if( cb == SyslogPrint )
233 char *psz_facility = var_InheritString( p_intf, "syslog-facility" );
237 for( size_t i = 0; i < fac_entries; ++i )
239 if( !strcmp( psz_facility, fac_name[i] ) )
241 i_facility = fac_number[i];
248 msg_Warn( p_intf, "invalid syslog facility `%s', using `%s'",
249 psz_facility, fac_name[0] );
250 i_facility = fac_number[0];
252 free( psz_facility );
256 msg_Warn( p_intf, "no syslog facility specified, using `%s'",
258 i_facility = fac_number[0];
261 char *psz_syslog_ident = var_InheritString( p_intf, "syslog-ident" );
262 if (unlikely(psz_syslog_ident == NULL))
268 p_sys->ident = psz_syslog_ident;
269 openlog( p_sys->ident, LOG_PID|LOG_NDELAY, i_facility );
271 p_sys->p_file = NULL;
276 if( cb == AndroidPrint )
283 char *psz_file = var_InheritString( p_intf, "logfile" );
287 # define LOG_DIR "Library/Logs"
288 char *home = config_GetUserDir(VLC_HOME_DIR);
290 || asprintf( &psz_file, "%s/"LOG_DIR"/%s", home,
296 msg_Warn( p_intf, "no log filename provided, using `%s'",
302 /* Open the log file and remove any buffering for the stream */
303 msg_Dbg( p_intf, "opening logfile `%s'", filename );
304 p_sys->p_file = vlc_fopen( filename, "at" );
305 if( p_sys->p_file == NULL )
307 msg_Err( p_intf, "error opening logfile `%s': %s", filename,
308 vlc_strerror_c(errno) );
314 setvbuf( p_sys->p_file, NULL, _IONBF, 0 );
315 fputs( header, p_sys->p_file );
318 vlc_LogSet( p_intf->p_libvlc, cb, p_intf );
322 /*****************************************************************************
323 * Close: destroy interface stuff
324 *****************************************************************************/
325 static void Close( vlc_object_t *p_this )
327 intf_thread_t *p_intf = (intf_thread_t *)p_this;
328 intf_sys_t *p_sys = p_intf->p_sys;
330 /* Flush the queue and unsubscribe from the message queue */
331 vlc_LogSet( p_intf->p_libvlc, NULL, NULL );
333 /* Close the log file */
335 if( p_sys->p_file == NULL )
338 free( p_sys->ident );
344 fputs( p_sys->footer, p_sys->p_file );
345 fclose( p_sys->p_file );
348 /* Destroy structure */
352 static bool IgnoreMessage( intf_thread_t *p_intf, int type )
354 /* TODO: cache value... */
355 int verbosity = var_InheritInteger( p_intf, "log-verbose" );
357 verbosity = var_InheritInteger( p_intf, "verbose" );
359 return verbosity < 0 || verbosity < (type - VLC_MSG_ERR);
366 static const char ppsz_type[4][9] = {
374 static const android_LogPriority prioritytype[4] = {
381 static void AndroidPrint( void *opaque, int type, const vlc_log_t *item,
382 const char *fmt, va_list ap )
385 intf_thread_t *p_intf = opaque;
387 if( IgnoreMessage( p_intf, type ) )
390 int canc = vlc_savecancel();
391 __android_log_vprint(prioritytype[type], "VLC", fmt, ap);
392 vlc_restorecancel( canc );
396 static void TextPrint( void *opaque, int type, const vlc_log_t *item,
397 const char *fmt, va_list ap )
399 intf_thread_t *p_intf = opaque;
400 FILE *stream = p_intf->p_sys->p_file;
402 if( IgnoreMessage( p_intf, type ) )
405 int canc = vlc_savecancel();
407 fprintf( stream, "%s%s: ", item->psz_module, ppsz_type[type] );
408 vfprintf( stream, fmt, ap );
409 putc_unlocked( '\n', stream );
410 funlockfile( stream );
411 vlc_restorecancel( canc );
415 static void SyslogPrint( void *opaque, int type, const vlc_log_t *item,
416 const char *fmt, va_list ap )
418 static const int i_prio[4] = { LOG_INFO, LOG_ERR, LOG_WARNING, LOG_DEBUG };
420 intf_thread_t *p_intf = opaque;
422 int i_priority = i_prio[type];
424 if( IgnoreMessage( p_intf, type )
425 || unlikely(vasprintf( &str, fmt, ap ) == -1) )
428 int canc = vlc_savecancel();
429 if( item->psz_header != NULL )
430 syslog( i_priority, "[%s] %s%s: %s", item->psz_header,
431 item->psz_module, ppsz_type[type], str );
433 syslog( i_priority, "%s%s: %s",
434 item->psz_module, ppsz_type[type], str );
435 vlc_restorecancel( canc );
440 static void HtmlPrint( void *opaque, int type, const vlc_log_t *item,
441 const char *fmt, va_list ap )
443 static const unsigned color[4] = {
444 0xffffff, 0xff6666, 0xffff66, 0xaaaaaa,
447 intf_thread_t *p_intf = opaque;
448 FILE *stream = p_intf->p_sys->p_file;
450 if( IgnoreMessage( p_intf, type ) )
453 int canc = vlc_savecancel();
455 fprintf( stream, "%s%s: <span style=\"color: #%06x\">",
456 item->psz_module, ppsz_type[type], color[type] );
457 /* FIXME: encode special ASCII characters */
458 vfprintf( stream, fmt, ap );
459 fputs( "</span>\n", stream );
460 funlockfile( stream );
461 vlc_restorecancel( canc );