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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include <gio/gio.h>
#include <gio/gunixsocketaddress.h>
#include <unistd.h>
#include <ctype.h>
#include "status.h"
static GSocket *status_socket = NULL;
static StatusRequestFunc request_func = NULL;
static gchar *filter_id = NULL;
static gboolean
status_request_cb (GSocket *socket, GIOCondition condition, gpointer data)
{
int length;
gchar buffer[1024];
ssize_t n_read;
const gchar *c, *start;
int l;
g_autofree gchar *id = NULL;
g_autofree gchar *name = NULL;
gboolean id_matches;
g_autoptr(GHashTable) params = NULL;
g_autoptr(GError) error = NULL;
n_read = g_socket_receive (socket, (gchar *)&length, sizeof (length), NULL, &error);
if (n_read > 0)
n_read = g_socket_receive (socket, buffer, length, NULL, &error);
if (error)
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CONNECTION_CLOSED))
n_read = 0;
else
g_warning ("Error reading from socket: %s", error->message);
}
if (n_read == 0)
{
if (request_func)
request_func (NULL, NULL);
return FALSE;
}
if (n_read <= 0 || !request_func)
return TRUE;
buffer[n_read] = '\0';
c = buffer;
start = c;
l = 0;
while (*c && !isspace (*c))
{
c++;
l++;
}
id = g_strdup_printf ("%.*s", l, start);
id_matches = g_strcmp0 (id, filter_id) == 0;
if (!id_matches)
return TRUE;
while (isspace (*c))
c++;
start = c;
l = 0;
while (*c && !isspace (*c))
{
c++;
l++;
}
name = g_strdup_printf ("%.*s", l, start);
params = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
while (TRUE)
{
const gchar *start;
g_autofree gchar *param_name = NULL;
g_autofree gchar *param_value = NULL;
while (isspace (*c))
c++;
start = c;
while (*c && !isspace (*c) && *c != '=')
c++;
if (*c == '\0')
break;
param_name = g_strdup_printf ("%.*s", (int) (c - start), start);
if (*c == '=')
{
c++;
while (isspace (*c))
c++;
if (*c == '\"')
{
gboolean escaped = FALSE;
g_autoptr(GString) value = NULL;
c++;
value = g_string_new ("");
while (*c)
{
if (*c == '\\')
{
if (escaped)
{
g_string_append_c (value, '\\');
escaped = FALSE;
}
else
escaped = TRUE;
}
else if (!escaped && *c == '\"')
break;
if (!escaped)
g_string_append_c (value, *c);
c++;
}
param_value = g_strdup (value->str);
if (*c == '\"')
c++;
}
else
{
start = c;
while (*c && !isspace (*c))
c++;
param_value = g_strdup_printf ("%.*s", (int) (c - start), start);
}
}
else
param_value = g_strdup ("");
g_hash_table_insert (params, g_steal_pointer (¶m_name), g_steal_pointer (¶m_value));
}
request_func (name, params);
return TRUE;
}
gboolean
status_connect (StatusRequestFunc request_cb, const gchar *id)
{
g_autofree gchar *path = NULL;
g_autoptr(GSocketAddress) address = NULL;
GSource *source;
g_autoptr(GError) error = NULL;
request_func = request_cb;
filter_id = g_strdup (id);
status_socket = g_socket_new (G_SOCKET_FAMILY_UNIX, G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_DEFAULT, &error);
if (!status_socket)
{
g_printerr ("Unable to open socket for status: %s\n", error->message);
return FALSE;
}
path = g_build_filename (g_getenv ("LIGHTDM_TEST_ROOT"), ".s", NULL);
address = g_unix_socket_address_new (path);
if (!g_socket_connect (status_socket, address, NULL, &error))
{
g_printerr ("Failed to connect to status socket %s: %s\n", path, error->message);
g_clear_object (&status_socket);
return FALSE;
}
source = g_socket_create_source (status_socket, G_IO_IN, NULL);
g_source_set_callback (source, (GSourceFunc) status_request_cb, NULL, NULL);
g_source_attach (source, NULL);
return TRUE;
}
void
status_notify (const gchar *format, ...)
{
gchar status[1024];
va_list ap;
va_start (ap, format);
vsnprintf (status, 1024, format, ap);
va_end (ap);
if (status_socket)
{
g_autoptr(GError) error = NULL;
int length;
length = strlen (status);
if (g_socket_send (status_socket, (gchar *) &length, sizeof (length), NULL, &error) < 0 ||
g_socket_send (status_socket, status, strlen (status), NULL, &error) < 0)
g_printerr ("Failed to write to status socket: %s\n", error->message);
else
return;
}
g_printerr ("%s\n", status);
}
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