This repository has been archived by the owner on Oct 25, 2018. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 15
/
xdg-app-builtins-run.c
311 lines (250 loc) · 9.07 KB
/
xdg-app-builtins-run.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
#include "config.h"
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include "libgsystem.h"
#include "xdg-app-builtins.h"
#include "xdg-app-utils.h"
static char *opt_arch;
static char *opt_branch;
static char *opt_command;
static gboolean opt_devel;
static GOptionEntry options[] = {
{ "arch", 0, 0, G_OPTION_ARG_STRING, &opt_arch, "Arch to use", NULL },
{ "command", 0, 0, G_OPTION_ARG_STRING, &opt_command, "Command to run", NULL },
{ "branch", 0, 0, G_OPTION_ARG_STRING, &opt_branch, "Branch to run", NULL },
{ "devel", 'd', 0, G_OPTION_ARG_NONE, &opt_devel, "Use development runtime", NULL },
{ NULL }
};
static void
usage_error (GOptionContext *context, const char *message, GError **error)
{
gs_free gchar *help = g_option_context_get_help (context, TRUE, NULL);
g_printerr ("%s", help);
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, message);
}
static char *
extract_unix_path_from_dbus_addres (const char *address)
{
const char *path, *path_end;
if (address == NULL)
return NULL;
if (!g_str_has_prefix (address, "unix:"))
return NULL;
path = strstr (address, "path=");
if (path == NULL)
return NULL;
path += strlen ("path=");
path_end = path;
while (*path_end != 0 && *path_end != ',')
path_end++;
return g_strndup (path, path_end - path);
}
void
xdg_app_run_add_x11_args (GPtrArray *argv_array)
{
char *x11_socket = NULL;
const char *display = g_getenv ("DISPLAY");
if (display && display[0] == ':' && g_ascii_isdigit (display[1]))
{
const char *display_nr = &display[1];
const char *display_nr_end = display_nr;
gs_free char *d = NULL;
while (g_ascii_isdigit (*display_nr_end))
display_nr_end++;
d = g_strndup (display_nr, display_nr_end - display_nr);
x11_socket = g_strdup_printf ("/tmp/.X11-unix/X%s", d);
g_ptr_array_add (argv_array, g_strdup ("-x"));
g_ptr_array_add (argv_array, x11_socket);
}
}
void
xdg_app_run_add_no_x11_args (GPtrArray *argv_array)
{
g_unsetenv ("DISPLAY");
}
void
xdg_app_run_add_pulseaudio_args (GPtrArray *argv_array)
{
char *pulseaudio_socket = g_build_filename (g_get_user_runtime_dir (), "pulse/native", NULL);
if (g_file_test (pulseaudio_socket, G_FILE_TEST_EXISTS))
{
g_ptr_array_add (argv_array, g_strdup ("-p"));
g_ptr_array_add (argv_array, pulseaudio_socket);
}
}
void
xdg_app_run_add_system_dbus_args (GPtrArray *argv_array)
{
const char *dbus_address = g_getenv ("DBUS_SYSTEM_BUS_ADDRESS");
char *dbus_system_socket = NULL;
dbus_system_socket = extract_unix_path_from_dbus_addres (dbus_address);
if (dbus_system_socket == NULL &&
g_file_test ("/var/run/dbus/system_bus_socket", G_FILE_TEST_EXISTS))
{
dbus_system_socket = g_strdup ("/var/run/dbus/system_bus_socket");
}
if (dbus_system_socket != NULL)
{
g_ptr_array_add (argv_array, g_strdup ("-D"));
g_ptr_array_add (argv_array, dbus_system_socket);
}
}
void
xdg_app_run_add_session_dbus_args (GPtrArray *argv_array)
{
const char *dbus_address = g_getenv ("DBUS_SESSION_BUS_ADDRESS");
char *dbus_session_socket = NULL;
dbus_session_socket = extract_unix_path_from_dbus_addres (dbus_address);
if (dbus_session_socket != NULL)
{
g_ptr_array_add (argv_array, g_strdup ("-d"));
g_ptr_array_add (argv_array, dbus_session_socket);
}
}
gboolean
xdg_app_builtin_run (int argc, char **argv, GCancellable *cancellable, GError **error)
{
GOptionContext *context;
gboolean ret = FALSE;
gs_unref_object XdgAppDir *user_dir = NULL;
gs_unref_variant_builder GVariantBuilder *optbuilder = NULL;
gs_unref_object GFile *deploy_base = NULL;
gs_unref_object GFile *var = NULL;
gs_unref_object GFile *var_tmp = NULL;
gs_unref_object GFile *var_run = NULL;
gs_unref_object GFile *app_deploy = NULL;
gs_unref_object GFile *app_files = NULL;
gs_unref_object GFile *runtime_deploy = NULL;
gs_unref_object GFile *runtime_files = NULL;
gs_unref_object GFile *metadata = NULL;
gs_free char *metadata_contents = NULL;
gs_free char *runtime = NULL;
gs_free char *default_command = NULL;
gs_free char *runtime_ref = NULL;
gs_free char *app_ref = NULL;
gs_unref_keyfile GKeyFile *metakey = NULL;
gs_free_error GError *my_error = NULL;
gs_free_error GError *my_error2 = NULL;
gs_unref_ptrarray GPtrArray *argv_array = NULL;
gsize metadata_size;
const char *app;
const char *branch = "master";
const char *command = "/bin/sh";
int i;
int rest_argv_start, rest_argc;
context = g_option_context_new ("APP [args...] - Run an app");
rest_argc = 0;
for (i = 1; i < argc; i++)
{
/* The non-option is the command, take it out of the arguments */
if (argv[i][0] != '-')
{
rest_argv_start = i;
rest_argc = argc - i;
argc = i;
break;
}
}
if (rest_argc == 0)
{
usage_error (context, "APP must be specified", error);
goto out;
}
if (!xdg_app_option_context_parse (context, options, &argc, &argv, XDG_APP_BUILTIN_FLAG_NO_DIR, NULL, cancellable, error))
goto out;
app = argv[rest_argv_start];
if (opt_branch)
branch = opt_branch;
app_ref = xdg_app_build_app_ref (app, branch, opt_arch);
user_dir = xdg_app_dir_get_user ();
app_deploy = xdg_app_find_deploy_dir_for_ref (app_ref, cancellable, error);
if (app_deploy == NULL)
goto out;
metadata = g_file_get_child (app_deploy, "metadata");
if (!g_file_load_contents (metadata, cancellable, &metadata_contents, &metadata_size, NULL, error))
goto out;
metakey = g_key_file_new ();
if (!g_key_file_load_from_data (metakey, metadata_contents, metadata_size, 0, error))
goto out;
runtime = g_key_file_get_string (metakey, "Application", opt_devel ? "sdk" : "runtime", error);
if (runtime == NULL)
goto out;
runtime_ref = g_build_filename ("runtime", runtime, NULL);
runtime_deploy = xdg_app_find_deploy_dir_for_ref (runtime_ref, cancellable, error);
if (runtime_deploy == NULL)
goto out;
if (!xdg_app_dir_ensure_path (user_dir, cancellable, error))
goto out;
var = xdg_app_dir_get_app_data (user_dir, app);
if (!gs_file_ensure_directory (var, TRUE, cancellable, error))
goto out;
var_tmp = g_file_get_child (var, "tmp");
var_run = g_file_get_child (var, "run");
if (!g_file_make_symbolic_link (var_tmp, "/tmp", cancellable, &my_error) &&
!g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
{
g_propagate_error (error, my_error);
my_error = NULL;
goto out;
}
if (!g_file_make_symbolic_link (var_run, "/run", cancellable, &my_error2) &&
!g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
{
g_propagate_error (error, my_error2);
my_error2 = NULL;
goto out;
}
app_files = g_file_get_child (app_deploy, "files");
runtime_files = g_file_get_child (runtime_deploy, "files");
default_command = g_key_file_get_string (metakey, "Application", "command", error);
if (opt_command)
command = opt_command;
else if (default_command)
command = default_command;
argv_array = g_ptr_array_new_with_free_func (g_free);
g_ptr_array_add (argv_array, g_strdup (HELPER));
if (g_key_file_get_boolean (metakey, "Environment", "ipc", NULL))
g_ptr_array_add (argv_array, g_strdup ("-i"));
if (g_key_file_get_boolean (metakey, "Environment", "host-fs", NULL))
g_ptr_array_add (argv_array, g_strdup ("-f"));
if (g_key_file_get_boolean (metakey, "Environment", "homedir", NULL))
g_ptr_array_add (argv_array, g_strdup ("-H"));
if (g_key_file_get_boolean (metakey, "Environment", "network", NULL))
g_ptr_array_add (argv_array, g_strdup ("-n"));
if (g_key_file_get_boolean (metakey, "Environment", "x11", NULL))
xdg_app_run_add_x11_args (argv_array);
else
xdg_app_run_add_no_x11_args (argv_array);
if (g_key_file_get_boolean (metakey, "Environment", "pulseaudio", NULL))
xdg_app_run_add_pulseaudio_args (argv_array);
if (g_key_file_get_boolean (metakey, "Environment", "system-dbus", NULL))
xdg_app_run_add_system_dbus_args (argv_array);
if (g_key_file_get_boolean (metakey, "Environment", "session-dbus", NULL))
xdg_app_run_add_session_dbus_args (argv_array);
g_ptr_array_add (argv_array, g_strdup ("-a"));
g_ptr_array_add (argv_array, g_file_get_path (app_files));
g_ptr_array_add (argv_array, g_strdup ("-v"));
g_ptr_array_add (argv_array, g_file_get_path (var));
g_ptr_array_add (argv_array, g_file_get_path (runtime_files));
g_ptr_array_add (argv_array, g_strdup (command));
for (i = 1; i < rest_argc; i++)
g_ptr_array_add (argv_array, g_strdup (argv[rest_argv_start + i]));
g_ptr_array_add (argv_array, NULL);
g_setenv ("XDG_DATA_DIRS", "/self/share:/usr/share", TRUE);
g_unsetenv ("LD_LIBRARY_PATH");
g_setenv ("PATH", "/self/bin:/usr/bin", TRUE);
if (!execv (HELPER, (char **)argv_array->pdata))
{
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), "Unable to start app");
goto out;
}
/* Not actually reached... */
ret = TRUE;
out:
if (context)
g_option_context_free (context);
return ret;
}