code.delx.au - pulseaudio/blob - src/pulsecore/proplist-util.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2008 Lennart Poettering
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <locale.h>
  28
  29 #ifdef ENABLE_NLS
  30 #include <libintl.h>
  31 #endif
  32
  33 #ifdef __APPLE__
  34 #include <crt_externs.h>
  35 #define environ (*_NSGetEnviron())
  36 #elif !HAVE_DECL_ENVIRON
  37 extern char **environ;
  38 #endif
  39
  40 #include <pulse/gccmacro.h>
  41 #include <pulse/proplist.h>
  42 #include <pulse/utf8.h>
  43 #include <pulse/xmalloc.h>
  44 #include <pulse/util.h>
  45
  46 #include <pulsecore/core-util.h>
  47
  48 #if defined(HAVE_GLIB) && defined(PA_GCC_WEAKREF)
  49 #include <glib.h>
  50 static G_CONST_RETURN gchar* _g_get_application_name(void) PA_GCC_WEAKREF(g_get_application_name);
  51 #endif
  52
  53 #if defined(HAVE_GTK) && defined(PA_GCC_WEAKREF)
  54 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
  55 #include <gtk/gtk.h>
  56 #include <gdk/gdkx.h>
  57 static G_CONST_RETURN gchar* _gtk_window_get_default_icon_name(void) PA_GCC_WEAKREF(gtk_window_get_default_icon_name);
  58 static Display *_gdk_display PA_GCC_WEAKREF(gdk_display);
  59 #endif
  60
  61 #include "proplist-util.h"
  62
  63 static void add_glib_properties(pa_proplist *p) {
  64
  65 #if defined(HAVE_GLIB) && defined(PA_GCC_WEAKREF)
  66
  67     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME))
  68         if (_g_get_application_name) {
  69             const gchar *t;
  70
  71             /* We ignore the tiny race condition here. */
  72
  73             if ((t = _g_get_application_name()))
  74                 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
  75         }
  76
  77 #endif
  78 }
  79
  80 static void add_gtk_properties(pa_proplist *p) {
  81
  82 #if defined(HAVE_GTK) && defined(PA_GCC_WEAKREF)
  83
  84     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_ICON_NAME))
  85         if (_gtk_window_get_default_icon_name) {
  86             const gchar *t;
  87
  88             /* We ignore the tiny race condition here. */
  89
  90             if ((t = _gtk_window_get_default_icon_name()))
  91                 pa_proplist_sets(p, PA_PROP_APPLICATION_ICON_NAME, t);
  92         }
  93
  94     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY))
  95         if (&_gdk_display && _gdk_display) {
  96             const char *t;
  97
  98             /* We ignore the tiny race condition here. */
  99
 100             if ((t = DisplayString(_gdk_display)))
 101                 pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, t);
 102         }
 103
 104 #endif
 105 }
 106
 107 void pa_init_proplist(pa_proplist *p) {
 108     char **e;
 109     const char *pp;
 110
 111     pa_assert(p);
 112
 113     if (environ) {
 114
 115         /* Some applications seem to reset environ to NULL for various
 116          * reasons, hence we need to check for this explicitly. See
 117          * rhbz #473080 */
 118
 119         for (e = environ; *e; e++) {
 120
 121             if (pa_startswith(*e, "PULSE_PROP_")) {
 122                 size_t kl, skip;
 123                 char *k;
 124                 pa_bool_t override;
 125
 126                 if (pa_startswith(*e, "PULSE_PROP_OVERRIDE_")) {
 127                     skip = 20;
 128                     override = TRUE;
 129                 } else {
 130                     skip = 11;
 131                     override = FALSE;
 132                 }
 133
 134                 kl = strcspn(*e+skip, "=");
 135
 136                 if ((*e)[skip+kl] != '=')
 137                     continue;
 138
 139                 k = pa_xstrndup(*e+skip, kl);
 140
 141                 if (!pa_streq(k, "OVERRIDE"))
 142                     if (override || !pa_proplist_contains(p, k))
 143                         pa_proplist_sets(p, k, *e+skip+kl+1);
 144                 pa_xfree(k);
 145             }
 146         }
 147     }
 148
 149     if ((pp = getenv("PULSE_PROP"))) {
 150         pa_proplist *t;
 151
 152         if ((t = pa_proplist_from_string(pp))) {
 153             pa_proplist_update(p, PA_UPDATE_MERGE, t);
 154             pa_proplist_free(t);
 155         }
 156     }
 157
 158     if ((pp = getenv("PULSE_PROP_OVERRIDE"))) {
 159         pa_proplist *t;
 160
 161         if ((t = pa_proplist_from_string(pp))) {
 162             pa_proplist_update(p, PA_UPDATE_REPLACE, t);
 163             pa_proplist_free(t);
 164         }
 165     }
 166
 167     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_ID)) {
 168         char t[32];
 169         pa_snprintf(t, sizeof(t), "%lu", (unsigned long) getpid());
 170         pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_ID, t);
 171     }
 172
 173     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_USER)) {
 174         char *u;
 175
 176         if ((u = pa_get_user_name_malloc())) {
 177             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_USER, u);
 178             pa_xfree(u);
 179         }
 180     }
 181
 182     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_HOST)) {
 183         char *h;
 184
 185         if ((h = pa_get_host_name_malloc())) {
 186             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_HOST, h);
 187             pa_xfree(h);
 188         }
 189     }
 190
 191     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_BINARY)) {
 192         char *t;
 193
 194         if ((t = pa_get_binary_name_malloc())) {
 195             char *c = pa_utf8_filter(t);
 196             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_BINARY, c);
 197             pa_xfree(t);
 198             pa_xfree(c);
 199         }
 200     }
 201
 202     add_glib_properties(p);
 203     add_gtk_properties(p);
 204
 205     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 206         const char *t;
 207
 208         if ((t = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
 209             pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
 210     }
 211
 212     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_LANGUAGE)) {
 213         const char *l;
 214
 215         if ((l = setlocale(LC_MESSAGES, NULL)))
 216             pa_proplist_sets(p, PA_PROP_APPLICATION_LANGUAGE, l);
 217     }
 218
 219     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY)) {
 220         const char *t;
 221
 222         if ((t = getenv("DISPLAY"))) {
 223             char *c = pa_utf8_filter(t);
 224             pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, c);
 225             pa_xfree(c);
 226         }
 227     }
 228
 229     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID)) {
 230         char *m;
 231
 232         if ((m = pa_machine_id())) {
 233             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID, m);
 234             pa_xfree(m);
 235         }
 236     }
 237
 238     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_SESSION_ID)) {
 239         char *s;
 240
 241         if ((s = pa_session_id())) {
 242             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_SESSION_ID, s);
 243             pa_xfree(s);
 244         }
 245     }
 246 }
 247
 248 char *pa_proplist_get_stream_group(pa_proplist *p, const char *prefix, const char *cache) {
 249     const char *r;
 250     char *t;
 251
 252     if (!p)
 253         return NULL;
 254
 255     if (cache && (r = pa_proplist_gets(p, cache)))
 256         return pa_xstrdup(r);
 257
 258     if (!prefix)
 259         prefix = "stream";
 260
 261     if ((r = pa_proplist_gets(p, PA_PROP_MEDIA_ROLE)))
 262         t = pa_sprintf_malloc("%s-by-media-role:%s", prefix, r);
 263     else if ((r = pa_proplist_gets(p, PA_PROP_APPLICATION_ID)))
 264         t = pa_sprintf_malloc("%s-by-application-id:%s", prefix, r);
 265     else if ((r = pa_proplist_gets(p, PA_PROP_APPLICATION_NAME)))
 266         t = pa_sprintf_malloc("%s-by-application-name:%s", prefix, r);
 267     else if ((r = pa_proplist_gets(p, PA_PROP_MEDIA_NAME)))
 268         t = pa_sprintf_malloc("%s-by-media-name:%s", prefix, r);
 269     else
 270         t = pa_sprintf_malloc("%s-fallback:%s", prefix, r);
 271
 272     if (cache)
 273         pa_proplist_sets(p, cache, t);
 274
 275     return t;
 276 }