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|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* GDM - The GNOME Display Manager
* Copyright (C) 1999, 2000 Martin K. Petersen <mkp@mkp.net>
*
* This file Copyright (c) 2003 George Lebl
* - Common routines for the greeters.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include "config.h"
#include "gdm.h"
#include "gdmcommon.h"
#include "gdmcomm.h"
#include "gdmconfig.h"
#include "gdm-common.h"
#include "server.h"
static GHashTable *int_hash = NULL;
static GHashTable *bool_hash = NULL;
static GHashTable *string_hash = NULL;
static gboolean gdm_never_cache = FALSE;
static int comm_tries = 5;
/**
* gdm_config_never_cache
*
* Most programs want config data to be cached to avoid constantly
* grabbing the information over the wire and are happy calling
* gdm_update_config to update a key value. However, gdmsetup
* really does want the latest value each time it accesses a
* config option. To avoid needing to call update_config
* for each key to be retrieved, just calling this function will
* let the config system know to always get the value via the
* sockets connection.
*/
void
gdm_config_never_cache (gboolean never_cache)
{
gdm_never_cache = never_cache;
}
/**
* gdm_config_set_comm_retries
*
* If a client wants to specify how many times it will retry to
* get a config value, this function can be used.
*/
void
gdm_config_set_comm_retries (int tries)
{
comm_tries = tries;
}
/**
* gdm_config_hash_lookup
*
* Accesses hash with key, stripping it so it doesn't contain
* a default value.
*/
static gpointer
gdm_config_hash_lookup (GHashTable *hash,
const gchar *key)
{
gchar *p;
gpointer *ret;
gchar *newkey = g_strdup (key);
g_strstrip (newkey);
p = strchr (newkey, '=');
if (p != NULL)
*p = '\0';
ret = g_hash_table_lookup (hash, newkey);
g_free (newkey);
return (ret);
}
/**
* gdm_config_add_hash
*
* Adds value to hash, stripping the key so it doesn't contain
* a default value.
*/
static void
gdm_config_add_hash (GHashTable *hash,
const gchar *key,
gpointer value)
{
gchar *p;
gchar *newkey = g_strdup (key);
g_strstrip (newkey);
p = strchr (newkey, '=');
if (p != NULL)
*p = '\0';
/* Do not free the newkey since it is going into the hash. */
g_hash_table_insert (hash, newkey, value);
}
/**
* gdm_config_get_result
*
* Calls daemon to get config result, stripping the key so it
* doesn't contain a default value.
*/
static gchar *
gdm_config_get_result (const gchar *key)
{
gchar *p;
gchar *newkey = g_strdup (key);
gchar *command = NULL;
gchar *result = NULL;
static char *display = NULL;
g_strstrip (newkey);
p = strchr (newkey, '=');
if (p != NULL)
*p = '\0';
display = g_strdup (g_getenv ("DISPLAY"));
if (display == NULL)
command = g_strdup_printf ("GET_CONFIG %s", newkey);
else
command = g_strdup_printf ("GET_CONFIG %s %s", newkey, display);
result = gdmcomm_call_gdm (command, NULL /* auth cookie */,
"2.13.0.1", comm_tries);
g_free (display);
g_free (command);
g_free (newkey);
return result;
}
/**
* gdm_config_get_xserver_details
*
* Calls daemon to get details for an xserver config.
*/
static gchar *
gdm_config_get_xserver_details (const gchar *xserver,
const gchar *key)
{
gchar *command = NULL;
gchar *result = NULL;
gchar *temp;
command = g_strdup_printf ("GET_SERVER_DETAILS %s %s", xserver, key);
result = gdmcomm_call_gdm (command, NULL /* auth cookie */,
"2.13.0.1", comm_tries);
g_free (command);
if (! result || ve_string_empty (result) ||
strncmp (result, "OK ", 3) != 0) {
gdm_common_error ("Could not access xserver configuration");
if (result)
g_free (result);
return NULL;
}
/* skip the "OK " */
temp = g_strdup (result + 3);
g_free (result);
return temp;
}
/**
* gdm_config_get_xservers
*
* Calls daemon to get xserver config.
*/
GSList *
gdm_config_get_xservers (gboolean flexible)
{
GSList *xservers = NULL;
gchar **splitstr, **sec;
gchar *command = NULL;
gchar *result = NULL;
gchar *temp;
command = g_strdup_printf ("GET_SERVER_LIST");
result = gdmcomm_call_gdm (command, NULL /* auth cookie */,
"2.13.0.1", comm_tries);
g_free (command);
if (! result || ve_string_empty (result) ||
strncmp (result, "OK ", 3) != 0) {
gdm_common_error ("Could not access xserver configuration");
if (result)
g_free (result);
return NULL;
}
/* skip the "OK " */
splitstr = g_strsplit (result + 3, ";", 0);
sec = splitstr;
g_free (result);
while (*sec != NULL) {
GdmXserver *svr = g_new0 (GdmXserver, 1);
temp = gdm_config_get_xserver_details (*sec, "ID");
if (temp == NULL) {
g_free (svr);
continue;
}
svr->id = temp;
temp = gdm_config_get_xserver_details (*sec, "NAME");
if (temp == NULL) {
g_free (svr);
continue;
}
svr->name = temp;
temp = gdm_config_get_xserver_details (*sec, "COMMAND");
if (temp == NULL) {
g_free (svr);
continue;
}
svr->command = temp;
temp = gdm_config_get_xserver_details (*sec, "FLEXIBLE");
if (temp == NULL) {
g_free (svr);
continue;
} else if (g_strncasecmp (ve_sure_string (temp), "true", 4) == 0)
svr->flexible = TRUE;
else
svr->flexible = FALSE;
g_free (temp);
temp = gdm_config_get_xserver_details (*sec, "CHOOSABLE");
if (temp == NULL) {
g_free (svr);
continue;
} else if (g_strncasecmp (temp, "true", 4) == 0)
svr->choosable = TRUE;
else
svr->choosable = FALSE;
g_free (temp);
temp = gdm_config_get_xserver_details (*sec, "HANDLED");
if (temp == NULL) {
g_free (svr);
continue;
} else if (g_strncasecmp (temp, "true", 4) == 0)
svr->handled = TRUE;
else
svr->handled = FALSE;
g_free (temp);
temp = gdm_config_get_xserver_details (*sec, "CHOOSER");
if (temp == NULL) {
g_free (svr);
continue;
} else if (g_strncasecmp (temp, "true", 4) == 0)
svr->chooser = TRUE;
else
svr->chooser = FALSE;
g_free (temp);
temp = gdm_config_get_xserver_details (*sec, "PRIORITY");
if (temp == NULL) {
g_free (svr);
continue;
} else {
svr->priority = atoi (temp);
}
g_free (temp);
sec++;
/* If only flexible was requested, then skip if not flexible */
if (flexible && !svr->flexible) {
g_free (svr);
continue;
}
xservers = g_slist_append (xservers, svr);
}
g_strfreev (splitstr);
return xservers;
}
/**
* gdm_config_get_string
*
* Gets string configuration value from daemon via GET_CONFIG
* socket command. It stores the value in a hash so subsequent
* access is faster.
*/
static gchar *
_gdm_config_get_string (const gchar *key,
gboolean reload,
gboolean *changed,
gboolean doing_translated)
{
gchar *hashretval = NULL;
gchar *result = NULL;
gchar *temp;
if (string_hash == NULL)
string_hash = g_hash_table_new (g_str_hash, g_str_equal);
hashretval = gdm_config_hash_lookup (string_hash, key);
if (reload == FALSE && hashretval != NULL)
return hashretval;
result = gdm_config_get_result (key);
if ( ! result || ve_string_empty (result) ||
strncmp (result, "OK ", 3) != 0) {
gchar *getdefault;
/*
* If looking for a translated string, and not found, just return
* NULL.
*/
if (doing_translated) {
if (result)
g_free (result);
return NULL;
}
gdm_common_error ("Could not access configuration key <%s>", key);
/* Return the compiled in value associated with the key, if available. */
getdefault = strchr (key, '=');
if (getdefault != NULL)
getdefault++;
temp = g_strdup (getdefault);
gdm_common_error ("Using compiled in value <%s> for <%s>", temp, key);
} else {
/* skip the "OK " */
temp = g_strdup (result + 3);
}
if (result)
g_free (result);
if (hashretval == NULL) {
if (changed != NULL)
*changed = TRUE;
gdm_config_add_hash (string_hash, key, temp);
} else {
if (changed != NULL) {
if (strcmp (ve_sure_string (hashretval), temp) != 0)
*changed = TRUE;
else
*changed = FALSE;
}
g_hash_table_replace (string_hash, key, temp);
}
return temp;
}
gchar *
gdm_config_get_string (const gchar *key)
{
if (gdm_never_cache == TRUE)
return _gdm_config_get_string (key, TRUE, NULL, FALSE);
else
return _gdm_config_get_string (key, FALSE, NULL, FALSE);
}
/**
* gdm_config_get_translated_string
*
* Gets translated string configuration value from daemon via
* GET_CONFIG socket command. It stores the value in a hash so
* subsequent access is faster. This does similar logic to
* ve_config_get_trasnlated_string, requesting the value for
* each language and returning the default value if none is
* found.
*/
static gchar *
_gdm_config_get_translated_string (const gchar *key,
gboolean reload,
gboolean *changed)
{
const char * const *langs;
char *newkey;
char *def;
int i;
/* Strip key */
newkey = g_strdup (key);
def = strchr (newkey, '=');
if (def != NULL)
*def = '\0';
langs = g_get_language_names ();
for (i = 0; langs[i] != NULL; i++) {
gchar *full;
gchar *val;
/*
* Pass TRUE for last argument so it doesn't print errors for
* failing to find the key, since this is expected
*/
full = g_strdup_printf ("%s[%s]", newkey, langs[i]);
val = _gdm_config_get_string (full, reload, changed, TRUE);
g_free (full);
if (val != NULL) {
g_free (newkey);
return val;
}
}
g_free (newkey);
/* Print error if it fails this time */
return _gdm_config_get_string (key, reload, changed, FALSE);
}
gchar *
gdm_config_get_translated_string (const gchar *key)
{
if (gdm_never_cache == TRUE)
return _gdm_config_get_translated_string (key, TRUE, NULL);
else
return _gdm_config_get_translated_string (key, FALSE, NULL);
}
/**
* gdm_config_get_int
*
* Gets int configuration value from daemon via GET_CONFIG
* socket command. It stores the value in a hash so subsequent
* access is faster.
*/
static gint
_gdm_config_get_int (const gchar *key,
gboolean reload,
gboolean *changed)
{
gint *hashretval = NULL;
gchar *result = NULL;
gint temp;
if (int_hash == NULL)
int_hash = g_hash_table_new (g_str_hash, g_str_equal);
hashretval = gdm_config_hash_lookup (int_hash, key);
if (reload == FALSE && hashretval != NULL)
return *hashretval;
result = gdm_config_get_result (key);
if ( ! result || ve_string_empty (result) ||
strncmp (result, "OK ", 3) != 0) {
gchar *getdefault;
gdm_common_error ("Could not access configuration key <%s>", key);
/* Return the compiled in value associated with the key, if available. */
getdefault = strchr (key, '=');
if (getdefault != NULL)
getdefault++;
temp = atoi (getdefault);
gdm_common_error ("Using compiled in value <%d> for <%s>", temp, key);
} else {
/* skip the "OK " */
temp = atoi (result + 3);
}
if (result)
g_free (result);
if (hashretval == NULL) {
gint *intval = g_new0 (gint, 1);
*intval = temp;
gdm_config_add_hash (int_hash, key, intval);
if (changed != NULL)
*changed = TRUE;
return *intval;
} else {
if (changed != NULL) {
if (*hashretval != temp)
*changed = TRUE;
else
*changed = FALSE;
}
*hashretval = temp;
return *hashretval;
}
}
gint
gdm_config_get_int (const gchar *key)
{
if (gdm_never_cache == TRUE)
return _gdm_config_get_int (key, TRUE, NULL);
else
return _gdm_config_get_int (key, FALSE, NULL);
}
/**
* gdm_config_get_bool
*
* Gets int configuration value from daemon via GET_CONFIG
* socket command. It stores the value in a hash so subsequent
* access is faster.
*/
static gboolean
_gdm_config_get_bool (const gchar *key,
gboolean reload,
gboolean *changed)
{
gboolean *hashretval = NULL;
gchar *result;
gboolean temp;
if (bool_hash == NULL)
bool_hash = g_hash_table_new (g_str_hash, g_str_equal);
hashretval = gdm_config_hash_lookup (bool_hash, key);
if (reload == FALSE && hashretval != NULL)
return *hashretval;
result = gdm_config_get_result (key);
if ( ! result || ve_string_empty (result) ||
strncmp (result, "OK ", 3) != 0) {
gchar *getdefault;
gdm_common_error ("Could not access configuration key <%s>", key);
/* Return the compiled in value associated with the key, if available. */
getdefault = strchr (key, '=');
if (getdefault != NULL)
getdefault++;
/* Same logic as used in ve_config_get_bool */
if (getdefault != NULL &&
(getdefault[0] == 'T' ||
getdefault[0] == 't' ||
getdefault[0] == 'Y' ||
getdefault[0] == 'y' ||
atoi (getdefault) != 0)) {
temp = TRUE;
gdm_common_error ("Using compiled in value <TRUE> for <%s>", key);
} else {
temp = FALSE;
gdm_common_error ("Using compiled in value <FALSE> for <%s>", key);
}
} else {
/* skip the "OK " */
if (strcmp (ve_sure_string (result + 3), "true") == 0)
temp = TRUE;
else
temp = FALSE;
}
if (result)
g_free (result);
if (hashretval == NULL) {
gboolean *boolval = g_new0 (gboolean, 1);
*boolval = temp;
gdm_config_add_hash (bool_hash, key, boolval);
if (changed != NULL)
*changed = TRUE;
return *boolval;
} else {
if (changed != NULL) {
if (*hashretval != temp)
*changed = TRUE;
else
*changed = FALSE;
}
*hashretval = temp;
return *hashretval;
}
}
gboolean
gdm_config_get_bool (const gchar *key)
{
if (gdm_never_cache == TRUE)
return _gdm_config_get_bool (key, TRUE, NULL);
else
return _gdm_config_get_bool (key, FALSE, NULL);
}
/**
* gdm_config_reload_string
* gdm_config_reload_int
* gdm_config_reload_bool
*
* Reload values returning TRUE if value changed, FALSE
* otherwise.
*/
gboolean
gdm_config_reload_string (const gchar *key)
{
gboolean changed;
_gdm_config_get_string (key, TRUE, &changed, FALSE);
return changed;
}
gboolean
gdm_config_reload_int (const gchar *key)
{
gboolean changed;
_gdm_config_get_int (key, TRUE, &changed);
return changed;
}
gboolean
gdm_config_reload_bool (const gchar *key)
{
gboolean changed;
_gdm_config_get_bool (key, TRUE, &changed);
return changed;
}
void
gdm_save_customlist_data (const gchar *file,
const gchar *key,
const gchar *id)
{
GKeyFile *cfg;
cfg = gdm_common_config_load (file, NULL);
gdm_common_config_set_string (cfg, key, ve_sure_string (id));
gdm_common_config_save (cfg, file, NULL);
g_key_file_free (cfg);
}
gchar *
gdm_get_theme_greeter (const gchar *file,
const char *fallback)
{
GKeyFile *config;
gchar *s;
config = gdm_common_config_load (file, NULL);
s = NULL;
gdm_common_config_get_translated_string (config, "GdmGreeterTheme/Greeter", &s, NULL);
if (s == NULL || s[0] == '\0') {
g_free (s);
s = g_strdup_printf ("%s.xml", fallback);
}
g_key_file_free (config);
return s;
}
|