1 /*****************************************************************************
2 * file.c: file logger plugin
3 *****************************************************************************
4 * Copyright (C) 2002-2008 the VideoLAN team
5 * Copyright © 2007-2015 Rémi Denis-Courmont
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 *****************************************************************************/
28 #include <vlc_common.h>
29 #include <vlc_plugin.h>
31 //#include <vlc_charset.h>
37 static const char msg_type[4][9] = { "", " error", " warning", " debug" };
46 #define TEXT_FILENAME "vlc-log.txt"
47 #define TEXT_HEADER "\xEF\xBB\xBF" /* UTF-8 BOM */ \
48 "-- logger module started --\n"
49 #define TEXT_FOOTER "-- logger module stopped --\n"
51 static void LogText(void *opaque, int type, const vlc_log_t *meta,
52 const char *format, va_list ap)
54 vlc_logger_sys_t *sys = opaque;
55 FILE *stream = sys->stream;
57 if (sys->verbosity < type)
60 int canc = vlc_savecancel();
63 fprintf(stream, "%s%s: ", meta->psz_module, msg_type[type]);
64 vfprintf(stream, format, ap);
65 putc_unlocked('\n', stream);
68 vlc_restorecancel(canc);
71 #define HTML_FILENAME "vlc-log.html"
73 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n" \
74 " \"http://www.w3.org/TR/html4/strict.dtd\">\n" \
77 " <title>vlc log</title>\n" \
78 " <meta http-equiv=\"Content-Type\"" \
79 " content=\"text/html; charset=UTF-8\">\n" \
81 " <body style=\"background-color: #000000; color: #aaaaaa;\">\n" \
83 " <strong>-- logger module started --</strong>\n"
85 " <strong>-- logger module stopped --</strong>\n" \
90 static void LogHtml(void *opaque, int type, const vlc_log_t *meta,
91 const char *format, va_list ap)
93 static const unsigned color[4] = {
94 0xffffff, 0xff6666, 0xffff66, 0xaaaaaa,
96 vlc_logger_sys_t *sys = opaque;
97 FILE *stream = sys->stream;
99 if (sys->verbosity < type)
102 int canc = vlc_savecancel();
105 fprintf(stream, "%s%s: <span style=\"color: #%06x\">",
106 meta->psz_module, msg_type[type], color[type]);
107 /* FIXME: encode special ASCII characters */
108 vfprintf(stream, format, ap);
109 fputs("</span>\n", stream);
112 vlc_restorecancel(canc);
115 static vlc_log_cb Open(vlc_object_t *obj, void **restrict sysp)
117 if (!var_InheritBool(obj, "file-logging"))
120 int verbosity = var_InheritInteger(obj, "log-verbose");
122 verbosity = var_InheritInteger(obj, "verbose");
124 return NULL; /* nothing to log */
126 verbosity += VLC_MSG_ERR;
128 vlc_logger_sys_t *sys = malloc(sizeof (*sys));
129 if (unlikely(sys == NULL))
132 const char *filename = TEXT_FILENAME;
133 const char *header = TEXT_HEADER;
135 vlc_log_cb cb = LogText;
136 sys->footer = TEXT_FOOTER;
137 sys->verbosity = verbosity;
139 char *mode = var_InheritString(obj, "logmode");
142 if (!strcmp(mode, "html"))
144 filename = HTML_FILENAME;
145 header = HTML_HEADER;
147 sys->footer = HTML_FOOTER;
149 else if (strcmp(mode, "text"))
150 msg_Warn(obj, "invalid log mode \"%s\"", mode);
154 char *path = var_InheritString(obj, "logfile");
158 char *home = config_GetUserDir(VLC_HOME_DIR);
161 if (asprintf(&path, "%s/Library/Logs/%s", home, path) == -1)
170 /* Open the log file and remove any buffering for the stream */
171 msg_Dbg(obj, "opening logfile `%s'", filename);
172 sys->stream = vlc_fopen(filename, "at");
173 if (sys->stream == NULL)
175 msg_Err(obj, "error opening log file `%s': %s", filename,
176 vlc_strerror_c(errno) );
183 setvbuf(sys->stream, NULL, _IONBF, 0);
184 fputs(header, sys->stream);
190 static void Close(void *opaque)
192 vlc_logger_sys_t *sys = opaque;
194 fputs(sys->footer, sys->stream);
199 static const char *const mode_list[] = { "text", "html" };
200 static const char *const mode_list_text[] = { N_("Text"), N_("HTML") };
202 #define FILE_LOG_TEXT N_("Log to file")
203 #define FILE_LOG_LONGTEXT N_("Log all VLC messages to a text file.")
205 #define LOGMODE_TEXT N_("Log format")
206 #define LOGMODE_LONGTEXT N_("Specify the logging format.")
208 #define LOGVERBOSE_TEXT N_("Verbosity")
209 #define LOGVERBOSE_LONGTEXT N_("Select the verbosity to use for log or -1 to " \
210 "use the same verbosity given by --verbose.")
213 set_shortname(N_("Logger"))
214 set_description(N_("File logger"))
215 set_category(CAT_ADVANCED)
216 set_subcategory(SUBCAT_ADVANCED_MISC)
217 set_capability("logger", 15)
218 set_callbacks(Open, Close)
220 add_bool("file-logging", false, FILE_LOG_TEXT, FILE_LOG_LONGTEXT, false)
221 add_savefile("logfile", NULL,
222 N_("Log filename"), N_("Specify the log filename."), false)
223 add_string("logmode", "text", LOGMODE_TEXT, LOGMODE_LONGTEXT, false)
224 change_string_list(mode_list, mode_list_text)
225 add_integer("log-verbose", -1, LOGVERBOSE_TEXT, LOGVERBOSE_LONGTEXT,