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gtk2/gdk/broadway/gdkdisplay-broadway.c
Alexander Larsson db374a0a87 broadway: Use binary websockets if available
2012-10-01 14:58:57 +02:00

1383 lines
37 KiB
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/* GDK - The GIMP Drawing Kit
* gdkdisplay-broadway.c
*
* Copyright 2001 Sun Microsystems Inc.
* Copyright (C) 2004 Nokia Corporation
*
* Erwann Chenede <erwann.chenede@sun.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gdkdisplay-broadway.h"
#include "gdkdisplay.h"
#include "gdkeventsource.h"
#include "gdkscreen.h"
#include "gdkscreen-broadway.h"
#include "gdkinternals.h"
#include "gdkdeviceprivate.h"
#include "gdkdevicemanager-broadway.h"
#include <glib.h>
#include <glib/gprintf.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
static void gdk_broadway_display_dispose (GObject *object);
static void gdk_broadway_display_finalize (GObject *object);
#if 0
#define DEBUG_WEBSOCKETS 1
#endif
G_DEFINE_TYPE (GdkBroadwayDisplay, gdk_broadway_display, GDK_TYPE_DISPLAY)
static void
gdk_broadway_display_init (GdkBroadwayDisplay *display)
{
_gdk_broadway_display_manager_add_display (gdk_display_manager_get (),
GDK_DISPLAY_OBJECT (display));
display->id_ht = g_hash_table_new (NULL, NULL);
}
static void
gdk_event_init (GdkDisplay *display)
{
GdkBroadwayDisplay *broadway_display;
broadway_display = GDK_BROADWAY_DISPLAY (display);
broadway_display->event_source = _gdk_broadway_event_source_new (display);
broadway_display->saved_serial = 1;
broadway_display->last_seen_time = 1;
}
static void
gdk_broadway_display_init_input (GdkDisplay *display)
{
GdkBroadwayDisplay *broadway_display;
GdkDeviceManager *device_manager;
GdkDevice *device;
GList *list, *l;
broadway_display = GDK_BROADWAY_DISPLAY (display);
device_manager = gdk_display_get_device_manager (display);
/* For backwards compatibility, just add
* floating devices that are not keyboards.
*/
list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
for (l = list; l; l = l->next)
{
device = l->data;
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
continue;
broadway_display->input_devices = g_list_prepend (broadway_display->input_devices,
g_object_ref (l->data));
}
g_list_free (list);
/* Now set "core" pointer to the first
* master device that is a pointer.
*/
list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
for (l = list; l; l = l->next)
{
device = list->data;
if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
continue;
display->core_pointer = device;
break;
}
/* Add the core pointer to the devices list */
broadway_display->input_devices = g_list_prepend (broadway_display->input_devices,
g_object_ref (display->core_pointer));
g_list_free (list);
}
typedef struct HttpRequest {
GdkDisplay *display;
GSocketConnection *connection;
GDataInputStream *data;
GString *request;
} HttpRequest;
static void start_output (HttpRequest *request, gboolean proto_v7_plus, gboolean binary);
static void
http_request_free (HttpRequest *request)
{
g_object_unref (request->connection);
g_object_unref (request->data);
g_string_free (request->request, TRUE);
g_free (request);
}
struct BroadwayInput {
GdkDisplay *display;
GSocketConnection *connection;
GByteArray *buffer;
GSource *source;
gboolean seen_time;
gint64 time_base;
gboolean proto_v7_plus;
gboolean binary;
};
static void
broadway_input_free (BroadwayInput *input)
{
g_object_unref (input->connection);
g_byte_array_free (input->buffer, FALSE);
g_source_destroy (input->source);
g_free (input);
}
static void
process_input_messages (GdkBroadwayDisplay *broadway_display)
{
BroadwayInputMsg *message;
while (broadway_display->input_messages)
{
message = broadway_display->input_messages->data;
broadway_display->input_messages =
g_list_delete_link (broadway_display->input_messages,
broadway_display->input_messages);
_gdk_broadway_events_got_input (GDK_DISPLAY (broadway_display), message);
g_free (message);
}
}
static char *
parse_pointer_data (char *p, BroadwayInputPointerMsg *data)
{
data->mouse_window_id = strtol (p, &p, 10);
p++; /* Skip , */
data->event_window_id = strtol (p, &p, 10);
p++; /* Skip , */
data->root_x = strtol (p, &p, 10);
p++; /* Skip , */
data->root_y = strtol (p, &p, 10);
p++; /* Skip , */
data->win_x = strtol (p, &p, 10);
p++; /* Skip , */
data->win_y = strtol (p, &p, 10);
p++; /* Skip , */
data->state = strtol (p, &p, 10);
return p;
}
static void
update_future_pointer_info (GdkBroadwayDisplay *broadway_display, BroadwayInputPointerMsg *data)
{
broadway_display->future_root_x = data->root_x;
broadway_display->future_root_y = data->root_y;
broadway_display->future_state = data->state;
broadway_display->future_mouse_in_toplevel = data->mouse_window_id;
}
static void
parse_input_message (BroadwayInput *input, const char *message)
{
GdkBroadwayDisplay *broadway_display;
BroadwayInputMsg msg;
char *p;
gint64 time_;
broadway_display = GDK_BROADWAY_DISPLAY (input->display);
p = (char *)message;
msg.base.type = *p++;
msg.base.serial = (guint32)strtol (p, &p, 10);
p++; /* Skip , */
time_ = strtol(p, &p, 10);
p++; /* Skip , */
if (time_ == 0) {
time_ = broadway_display->last_seen_time;
} else {
if (!input->seen_time) {
input->seen_time = TRUE;
/* Calculate time base so that any following times are normalized to start
5 seconds after last_seen_time, to avoid issues that could appear when
a long hiatus due to a reconnect seems to be instant */
input->time_base = time_ - (broadway_display->last_seen_time + 5000);
}
time_ = time_ - input->time_base;
}
broadway_display->last_seen_time = time_;
msg.base.time = time_;
switch (msg.base.type) {
case 'e': /* Enter */
case 'l': /* Leave */
p = parse_pointer_data (p, &msg.pointer);
update_future_pointer_info (broadway_display, &msg.pointer);
p++; /* Skip , */
msg.crossing.mode = strtol(p, &p, 10);
break;
case 'm': /* Mouse move */
p = parse_pointer_data (p, &msg.pointer);
update_future_pointer_info (broadway_display, &msg.pointer);
break;
case 'b':
case 'B':
p = parse_pointer_data (p, &msg.pointer);
update_future_pointer_info (broadway_display, &msg.pointer);
p++; /* Skip , */
msg.button.button = strtol(p, &p, 10);
break;
case 's':
p = parse_pointer_data (p, &msg.pointer);
update_future_pointer_info (broadway_display, &msg.pointer);
p++; /* Skip , */
msg.scroll.dir = strtol(p, &p, 10);
break;
case 'k':
case 'K':
msg.key.key = strtol(p, &p, 10);
p++; /* Skip , */
msg.key.state = strtol(p, &p, 10);
break;
case 'g':
case 'u':
msg.grab_reply.res = strtol(p, &p, 10);
break;
case 'w':
msg.configure_notify.id = strtol(p, &p, 10);
p++; /* Skip , */
msg.configure_notify.x = strtol (p, &p, 10);
p++; /* Skip , */
msg.configure_notify.y = strtol (p, &p, 10);
p++; /* Skip , */
msg.configure_notify.width = strtol (p, &p, 10);
p++; /* Skip , */
msg.configure_notify.height = strtol (p, &p, 10);
break;
case 'W':
msg.delete_notify.id = strtol(p, &p, 10);
break;
case 'd':
msg.screen_resize_notify.width = strtol (p, &p, 10);
p++; /* Skip , */
msg.screen_resize_notify.height = strtol (p, &p, 10);
break;
default:
g_printerr ("Unknown input command %s\n", message);
break;
}
broadway_display->input_messages = g_list_append (broadway_display->input_messages, g_memdup (&msg, sizeof (msg)));
}
static inline void
hex_dump (guchar *data, gsize len)
{
#ifdef DEBUG_WEBSOCKETS
gsize i, j;
for (j = 0; j < len + 15; j += 16)
{
fprintf (stderr, "0x%.4x ", j);
for (i = 0; i < 16; i++)
{
if ((j + i) < len)
fprintf (stderr, "%.2x ", data[j+i]);
else
fprintf (stderr, " ");
if (i == 8)
fprintf (stderr, " ");
}
fprintf (stderr, " | ");
for (i = 0; i < 16; i++)
if ((j + i) < len && g_ascii_isalnum(data[j+i]))
fprintf (stderr, "%c", data[j+i]);
else
fprintf (stderr, ".");
fprintf (stderr, "\n");
}
#endif
}
static void
parse_input (BroadwayInput *input)
{
GdkBroadwayDisplay *broadway_display;
broadway_display = GDK_BROADWAY_DISPLAY (input->display);
if (!input->buffer->len)
return;
if (input->proto_v7_plus)
{
hex_dump (input->buffer->data, input->buffer->len);
while (input->buffer->len > 2)
{
gsize len, payload_len;
BroadwayWSOpCode code;
gboolean is_mask, fin;
guchar *buf, *data, *mask;
buf = input->buffer->data;
len = input->buffer->len;
#ifdef DEBUG_WEBSOCKETS
g_print ("Parse input first byte 0x%2x 0x%2x\n", buf[0], buf[1]);
#endif
fin = buf[0] & 0x80;
code = buf[0] & 0x0f;
payload_len = buf[1] & 0x7f;
is_mask = buf[1] & 0x80;
data = buf + 2;
if (payload_len > 125)
{
if (len < 4)
return;
payload_len = GUINT16_FROM_BE( *(guint16 *) data );
data += 2;
}
else if (payload_len > 126)
{
if (len < 10)
return;
payload_len = GUINT64_FROM_BE( *(guint64 *) data );
data += 8;
}
mask = NULL;
if (is_mask)
{
if (data - buf + 4 > len)
return;
mask = data;
data += 4;
}
if (data - buf + payload_len > len)
return; /* wait to accumulate more */
if (is_mask)
{
gsize i;
for (i = 0; i < payload_len; i++)
data[i] ^= mask[i%4];
}
switch (code) {
case BROADWAY_WS_CNX_CLOSE:
break; /* hang around anyway */
case BROADWAY_WS_TEXT:
if (!fin)
{
#ifdef DEBUG_WEBSOCKETS
g_warning ("can't yet accept fragmented input");
#endif
}
else
{
char *terminated = g_strndup((char *)data, payload_len);
parse_input_message (input, terminated);
g_free (terminated);
}
break;
case BROADWAY_WS_CNX_PING:
broadway_output_pong (broadway_display->output);
break;
case BROADWAY_WS_CNX_PONG:
break; /* we never send pings, but tolerate pongs */
case BROADWAY_WS_BINARY:
case BROADWAY_WS_CONTINUATION:
default:
{
g_warning ("fragmented or unknown input code 0x%2x with fin set", code);
break;
}
}
g_byte_array_remove_range (input->buffer, 0, data - buf + payload_len);
}
}
else /* old style protocol */
{
char *buf, *ptr;
gsize len;
buf = (char *)input->buffer->data;
len = input->buffer->len;
if (buf[0] != 0)
{
broadway_display->input = NULL;
broadway_input_free (input);
return;
}
while ((ptr = memchr (buf, 0xff, len)) != NULL)
{
*ptr = 0;
ptr++;
parse_input_message (input, buf + 1);
len -= ptr - buf;
buf = ptr;
if (len > 0 && buf[0] != 0)
{
broadway_display->input = NULL;
broadway_input_free (input);
break;
}
}
g_byte_array_remove_range (input->buffer, 0, buf - (char *)input->buffer->data);
}
}
static gboolean
process_input_idle_cb (GdkBroadwayDisplay *display)
{
display->process_input_idle = 0;
process_input_messages (display);
return G_SOURCE_REMOVE;
}
static void
queue_process_input_at_idle (GdkBroadwayDisplay *broadway_display)
{
if (broadway_display->process_input_idle == 0)
broadway_display->process_input_idle =
g_idle_add_full (GDK_PRIORITY_EVENTS, (GSourceFunc)process_input_idle_cb, broadway_display, NULL);
}
static void
_gdk_broadway_display_read_all_input_nonblocking (GdkDisplay *display)
{
GdkBroadwayDisplay *broadway_display;
GInputStream *in;
gssize res;
guint8 buffer[1024];
GError *error;
BroadwayInput *input;
broadway_display = GDK_BROADWAY_DISPLAY (display);
if (broadway_display->input == NULL)
return;
input = broadway_display->input;
in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
error = NULL;
res = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (in),
buffer, sizeof (buffer), NULL, &error);
if (res <= 0)
{
if (res < 0 &&
g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
{
g_error_free (error);
return;
}
broadway_display->input = NULL;
broadway_input_free (input);
if (res < 0)
{
g_print ("input error %s\n", error->message);
g_error_free (error);
}
return;
}
g_byte_array_append (input->buffer, buffer, res);
parse_input (input);
}
void
_gdk_broadway_display_consume_all_input (GdkDisplay *display)
{
GdkBroadwayDisplay *broadway_display;
broadway_display = GDK_BROADWAY_DISPLAY (display);
_gdk_broadway_display_read_all_input_nonblocking (display);
/* Since we're parsing input but not processing the resulting messages
we might not get a readable callback on the stream, so queue an idle to
process the messages */
queue_process_input_at_idle (broadway_display);
}
static gboolean
input_data_cb (GObject *stream,
BroadwayInput *input)
{
GdkBroadwayDisplay *broadway_display;
broadway_display = GDK_BROADWAY_DISPLAY (input->display);
_gdk_broadway_display_read_all_input_nonblocking (input->display);
process_input_messages (broadway_display);
return TRUE;
}
/* Note: This may be called while handling a message (i.e. sorta recursively) */
BroadwayInputMsg *
_gdk_broadway_display_block_for_input (GdkDisplay *display, char op,
guint32 serial, gboolean remove_message)
{
GdkBroadwayDisplay *broadway_display;
BroadwayInputMsg *message;
gssize res;
guint8 buffer[1024];
BroadwayInput *input;
GInputStream *in;
GList *l;
gdk_display_flush (display);
broadway_display = GDK_BROADWAY_DISPLAY (display);
if (broadway_display->input == NULL)
return NULL;
input = broadway_display->input;
while (TRUE) {
/* Check for existing reply in queue */
for (l = broadway_display->input_messages; l != NULL; l = l->next)
{
message = l->data;
if (message->base.type == op)
{
if (message->base.serial == serial)
{
if (remove_message)
broadway_display->input_messages =
g_list_delete_link (broadway_display->input_messages, l);
return message;
}
}
}
/* Not found, read more, blocking */
in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
res = g_input_stream_read (in, buffer, sizeof (buffer), NULL, NULL);
if (res <= 0)
return NULL;
g_byte_array_append (input->buffer, buffer, res);
parse_input (input);
/* Since we're parsing input but not processing the resulting messages
we might not get a readable callback on the stream, so queue an idle to
process the messages */
queue_process_input_at_idle (broadway_display);
}
}
static char *
parse_line (char *line, char *key)
{
char *p;
if (!g_str_has_prefix (line, key))
return NULL;
p = line + strlen (key);
if (*p != ':')
return NULL;
p++;
/* Skip optional initial space */
if (*p == ' ')
p++;
return p;
}
static void
send_error (HttpRequest *request,
int error_code,
const char *reason)
{
char *res;
res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
"<html><head><title>%d %s</title></head>"
"<body>%s</body></html>",
error_code, reason,
error_code, reason,
reason);
/* TODO: This should really be async */
g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
res, strlen (res), NULL, NULL, NULL);
g_free (res);
http_request_free (request);
}
/* magic from: http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-17 */
#define SEC_WEB_SOCKET_KEY_MAGIC "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
/* 'x3JJHMbDL1EzLkh9GBhXDw==' generates 'HSmrc0sMlYUkAGmm5OPpG2HaGWk=' */
static gchar *
generate_handshake_response_wsietf_v7 (const gchar *key)
{
gsize digest_len = 20;
guchar digest[digest_len];
GChecksum *checksum;
checksum = g_checksum_new (G_CHECKSUM_SHA1);
if (!checksum)
return NULL;
g_checksum_update (checksum, (guchar *)key, -1);
g_checksum_update (checksum, (guchar *)SEC_WEB_SOCKET_KEY_MAGIC, -1);
g_checksum_get_digest (checksum, digest, &digest_len);
g_checksum_free (checksum);
g_assert (digest_len == 20);
return g_base64_encode (digest, digest_len);
}
static void
start_input (HttpRequest *request, gboolean binary)
{
char **lines;
char *p;
int num_key1, num_key2;
guint64 key1, key2;
int num_space;
int i;
guint8 challenge[16];
char *res;
gsize len;
GChecksum *checksum;
char *origin, *host;
GdkBroadwayDisplay *broadway_display;
BroadwayInput *input;
const void *data_buffer;
gsize data_buffer_size;
GInputStream *in;
char *key_v7;
gboolean proto_v7_plus;
broadway_display = GDK_BROADWAY_DISPLAY (request->display);
if (broadway_display->input != NULL)
{
send_error (request, 409, "Input already handled");
return;
}
#ifdef DEBUG_WEBSOCKETS
g_print ("incoming request:\n%s\n", request->request->str);
#endif
lines = g_strsplit (request->request->str, "\n", 0);
num_key1 = 0;
num_key2 = 0;
key1 = 0;
key2 = 0;
key_v7 = NULL;
origin = NULL;
host = NULL;
for (i = 0; lines[i] != NULL; i++)
{
if ((p = parse_line (lines[i], "Sec-WebSocket-Key1")))
{
num_space = 0;
while (*p != 0)
{
if (g_ascii_isdigit (*p))
key1 = key1 * 10 + g_ascii_digit_value (*p);
else if (*p == ' ')
num_space++;
p++;
}
key1 /= num_space;
num_key1++;
}
else if ((p = parse_line (lines[i], "Sec-WebSocket-Key2")))
{
num_space = 0;
while (*p != 0)
{
if (g_ascii_isdigit (*p))
key2 = key2 * 10 + g_ascii_digit_value (*p);
else if (*p == ' ')
num_space++;
p++;
}
key2 /= num_space;
num_key2++;
}
else if ((p = parse_line (lines[i], "Sec-WebSocket-Key")))
{
key_v7 = p;
}
else if ((p = parse_line (lines[i], "Origin")))
{
origin = p;
}
else if ((p = parse_line (lines[i], "Host")))
{
host = p;
}
else if ((p = parse_line (lines[i], "Sec-WebSocket-Origin")))
{
origin = p;
}
}
if (origin == NULL || host == NULL)
{
g_strfreev (lines);
send_error (request, 400, "Bad websocket request");
return;
}
if (key_v7 != NULL)
{
char* accept = generate_handshake_response_wsietf_v7 (key_v7);
res = g_strdup_printf ("HTTP/1.1 101 Switching Protocols\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
"Sec-WebSocket-Origin: %s\r\n"
"Sec-WebSocket-Location: ws://%s/socket\r\n"
"Sec-WebSocket-Protocol: broadway\r\n"
"\r\n", accept, origin, host);
g_free (accept);
#ifdef DEBUG_WEBSOCKETS
g_print ("v7 proto response:\n%s", res);
#endif
g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
res, strlen (res), NULL, NULL, NULL);
g_free (res);
proto_v7_plus = TRUE;
}
else
{
if (num_key1 != 1 || num_key2 != 1)
{
g_strfreev (lines);
send_error (request, 400, "Bad websocket request");
return;
}
challenge[0] = (key1 >> 24) & 0xff;
challenge[1] = (key1 >> 16) & 0xff;
challenge[2] = (key1 >> 8) & 0xff;
challenge[3] = (key1 >> 0) & 0xff;
challenge[4] = (key2 >> 24) & 0xff;
challenge[5] = (key2 >> 16) & 0xff;
challenge[6] = (key2 >> 8) & 0xff;
challenge[7] = (key2 >> 0) & 0xff;
if (!g_input_stream_read_all (G_INPUT_STREAM (request->data), challenge+8, 8, NULL, NULL, NULL))
{
g_strfreev (lines);
send_error (request, 400, "Bad websocket request");
return;
}
checksum = g_checksum_new (G_CHECKSUM_MD5);
g_checksum_update (checksum, challenge, 16);
len = 16;
g_checksum_get_digest (checksum, challenge, &len);
g_checksum_free (checksum);
res = g_strdup_printf ("HTTP/1.1 101 WebSocket Protocol Handshake\r\n"
"Upgrade: WebSocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Origin: %s\r\n"
"Sec-WebSocket-Location: ws://%s/socket\r\n"
"Sec-WebSocket-Protocol: broadway\r\n"
"\r\n",
origin, host);
#ifdef DEBUG_WEBSOCKETS
g_print ("legacy response:\n%s", res);
#endif
g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
res, strlen (res), NULL, NULL, NULL);
g_free (res);
g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
challenge, 16, NULL, NULL, NULL);
proto_v7_plus = FALSE;
}
input = g_new0 (BroadwayInput, 1);
input->display = request->display;
input->connection = g_object_ref (request->connection);
input->proto_v7_plus = proto_v7_plus;
input->binary = binary;
data_buffer = g_buffered_input_stream_peek_buffer (G_BUFFERED_INPUT_STREAM (request->data), &data_buffer_size);
input->buffer = g_byte_array_sized_new (data_buffer_size);
g_byte_array_append (input->buffer, data_buffer, data_buffer_size);
broadway_display->input = input;
start_output (request, proto_v7_plus, binary);
/* This will free and close the data input stream, but we got all the buffered content already */
http_request_free (request);
in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
input->source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (in), NULL);
g_source_set_callback (input->source, (GSourceFunc)input_data_cb, input, NULL);
g_source_attach (input->source, NULL);
/* Process any data in the pipe already */
parse_input (input);
process_input_messages (broadway_display);
g_strfreev (lines);
}
static void
start_output (HttpRequest *request, gboolean proto_v7_plus, gboolean binary)
{
GSocket *socket;
GdkBroadwayDisplay *broadway_display;
int flag = 1;
socket = g_socket_connection_get_socket (request->connection);
setsockopt(g_socket_get_fd (socket), IPPROTO_TCP,
TCP_NODELAY, (char *) &flag, sizeof(int));
broadway_display = GDK_BROADWAY_DISPLAY (request->display);
if (broadway_display->output)
{
broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
broadway_output_free (broadway_display->output);
}
broadway_display->output =
broadway_output_new (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
broadway_display->saved_serial, proto_v7_plus, binary);
_gdk_broadway_resync_windows ();
if (broadway_display->pointer_grab_window)
broadway_output_grab_pointer (broadway_display->output,
GDK_WINDOW_IMPL_BROADWAY (broadway_display->pointer_grab_window->impl)->id,
broadway_display->pointer_grab_owner_events);
}
static void
send_data (HttpRequest *request,
const char *mimetype,
const char *data, gsize len)
{
char *res;
res = g_strdup_printf ("HTTP/1.0 200 OK\r\n"
"Content-Type: %s\r\n"
"Content-Length: %"G_GSIZE_FORMAT"\r\n"
"\r\n",
mimetype, len);
/* TODO: This should really be async */
g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
res, strlen (res), NULL, NULL, NULL);
g_free (res);
g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
data, len, NULL, NULL, NULL);
http_request_free (request);
}
#include "clienthtml.h"
#include "broadwayjs.h"
static void
got_request (HttpRequest *request)
{
char *start, *escaped, *tmp, *version, *query;
if (!g_str_has_prefix (request->request->str, "GET "))
{
send_error (request, 501, "Only GET implemented");
return;
}
start = request->request->str + 4; /* Skip "GET " */
while (*start == ' ')
start++;
for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
;
escaped = g_strndup (start, tmp - start);
version = NULL;
if (*tmp == ' ')
{
start = tmp;
while (*start == ' ')
start++;
for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
;
version = g_strndup (start, tmp - start);
}
query = strchr (escaped, '?');
if (query)
*query = 0;
if (strcmp (escaped, "/client.html") == 0 || strcmp (escaped, "/") == 0)
send_data (request, "text/html", client_html, G_N_ELEMENTS(client_html) - 1);
else if (strcmp (escaped, "/broadway.js") == 0)
send_data (request, "text/javascript", broadway_js, G_N_ELEMENTS(broadway_js) - 1);
else if (strcmp (escaped, "/socket") == 0)
start_input (request, FALSE);
else if (strcmp (escaped, "/socket-bin") == 0)
start_input (request, TRUE);
else
send_error (request, 404, "File not found");
g_free (escaped);
g_free (version);
}
static void
got_http_request_line (GInputStream *stream,
GAsyncResult *result,
HttpRequest *request)
{
char *line;
line = g_data_input_stream_read_line_finish (G_DATA_INPUT_STREAM (stream), result, NULL, NULL);
if (line == NULL)
{
http_request_free (request);
g_printerr ("Error reading request lines\n");
return;
}
if (strlen (line) == 0)
got_request (request);
else
{
/* Protect against overflow in request length */
if (request->request->len > 1024 * 5)
{
send_error (request, 400, "Request too long");
}
else
{
g_string_append_printf (request->request, "%s\n", line);
g_data_input_stream_read_line_async (request->data, 0, NULL,
(GAsyncReadyCallback)got_http_request_line, request);
}
}
g_free (line);
}
static gboolean
handle_incoming_connection (GSocketService *service,
GSocketConnection *connection,
GObject *source_object)
{
HttpRequest *request;
GInputStream *in;
request = g_new0 (HttpRequest, 1);
request->connection = g_object_ref (connection);
request->display = (GdkDisplay *) source_object;
request->request = g_string_new ("");
in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
request->data = g_data_input_stream_new (in);
g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (request->data), FALSE);
/* Be tolerant of input */
g_data_input_stream_set_newline_type (request->data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
g_data_input_stream_read_line_async (request->data, 0, NULL,
(GAsyncReadyCallback)got_http_request_line, request);
return TRUE;
}
GdkDisplay *
_gdk_broadway_display_open (const gchar *display_name)
{
GdkDisplay *display;
GdkBroadwayDisplay *broadway_display;
GError *error;
int port;
display = g_object_new (GDK_TYPE_BROADWAY_DISPLAY, NULL);
broadway_display = GDK_BROADWAY_DISPLAY (display);
broadway_display->output = NULL;
/* initialize the display's screens */
broadway_display->screens = g_new (GdkScreen *, 1);
broadway_display->screens[0] = _gdk_broadway_screen_new (display, 0);
/* We need to initialize events after we have the screen
* structures in places
*/
_gdk_broadway_screen_events_init (broadway_display->screens[0]);
/*set the default screen */
broadway_display->default_screen = broadway_display->screens[0];
display->device_manager = _gdk_broadway_device_manager_new (display);
gdk_event_init (display);
gdk_broadway_display_init_input (display);
_gdk_broadway_display_init_dnd (display);
_gdk_broadway_screen_setup (broadway_display->screens[0]);
if (display_name == NULL)
display_name = g_getenv ("BROADWAY_DISPLAY");
port = 0;
if (display_name != NULL)
port = strtol(display_name, NULL, 10);
if (port == 0)
port = 8080;
broadway_display->service = g_socket_service_new ();
if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (broadway_display->service),
port,
G_OBJECT (display),
&error))
{
g_printerr ("Unable to listen to port %d: %s\n", 8080, error->message);
g_error_free (error);
return NULL;
}
g_signal_connect (broadway_display->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL);
g_signal_emit_by_name (display, "opened");
g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
return display;
}
static const gchar *
gdk_broadway_display_get_name (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return (gchar *) "Broadway";
}
static gint
gdk_broadway_display_get_n_screens (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
return 1;
}
static GdkScreen *
gdk_broadway_display_get_screen (GdkDisplay *display,
gint screen_num)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_return_val_if_fail (screen_num == 0, NULL);
return GDK_BROADWAY_DISPLAY (display)->screens[screen_num];
}
static GdkScreen *
gdk_broadway_display_get_default_screen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_BROADWAY_DISPLAY (display)->default_screen;
}
static void
gdk_broadway_display_beep (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
}
static void
gdk_broadway_display_sync (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
}
static void
gdk_broadway_display_flush (GdkDisplay *display)
{
GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (display);
g_return_if_fail (GDK_IS_DISPLAY (display));
if (broadway_display->output &&
!broadway_output_flush (broadway_display->output))
{
broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
broadway_output_free (broadway_display->output);
broadway_display->output = NULL;
}
}
static gboolean
gdk_broadway_display_has_pending (GdkDisplay *display)
{
return FALSE;
}
static GdkWindow *
gdk_broadway_display_get_default_group (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return NULL;
}
static void
gdk_broadway_display_dispose (GObject *object)
{
GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
_gdk_broadway_display_manager_remove_display (gdk_display_manager_get (),
GDK_DISPLAY_OBJECT (object));
g_list_foreach (broadway_display->input_devices, (GFunc) g_object_run_dispose, NULL);
_gdk_screen_close (broadway_display->screens[0]);
if (broadway_display->event_source)
{
g_source_destroy (broadway_display->event_source);
g_source_unref (broadway_display->event_source);
broadway_display->event_source = NULL;
}
G_OBJECT_CLASS (gdk_broadway_display_parent_class)->dispose (object);
}
static void
gdk_broadway_display_finalize (GObject *object)
{
GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
/* Keymap */
if (broadway_display->keymap)
g_object_unref (broadway_display->keymap);
_gdk_broadway_cursor_display_finalize (GDK_DISPLAY_OBJECT(broadway_display));
/* input GdkDevice list */
g_list_free_full (broadway_display->input_devices, g_object_unref);
/* Free all GdkScreens */
g_object_unref (broadway_display->screens[0]);
g_free (broadway_display->screens);
G_OBJECT_CLASS (gdk_broadway_display_parent_class)->finalize (object);
}
void
_gdk_broadway_display_make_default (GdkDisplay *display)
{
}
static void
gdk_broadway_display_notify_startup_complete (GdkDisplay *display,
const gchar *startup_id)
{
}
static gboolean
gdk_broadway_display_supports_selection_notification (GdkDisplay *display)
{
return FALSE;
}
static gboolean
gdk_broadway_display_request_selection_notification (GdkDisplay *display,
GdkAtom selection)
{
return FALSE;
}
static gboolean
gdk_broadway_display_supports_clipboard_persistence (GdkDisplay *display)
{
return FALSE;
}
static void
gdk_broadway_display_store_clipboard (GdkDisplay *display,
GdkWindow *clipboard_window,
guint32 time_,
const GdkAtom *targets,
gint n_targets)
{
}
static gboolean
gdk_broadway_display_supports_shapes (GdkDisplay *display)
{
return FALSE;
}
static gboolean
gdk_broadway_display_supports_input_shapes (GdkDisplay *display)
{
return FALSE;
}
static gboolean
gdk_broadway_display_supports_composite (GdkDisplay *display)
{
return FALSE;
}
static GList *
gdk_broadway_display_list_devices (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_BROADWAY_DISPLAY (display)->input_devices;
}
static gulong
gdk_broadway_display_get_next_serial (GdkDisplay *display)
{
GdkBroadwayDisplay *broadway_display;
broadway_display = GDK_BROADWAY_DISPLAY (display);
if (broadway_display->output)
return broadway_output_get_next_serial (broadway_display->output);
return broadway_display->saved_serial;
}
static void
gdk_broadway_display_event_data_copy (GdkDisplay *display,
const GdkEvent *src,
GdkEvent *dst)
{
}
static void
gdk_broadway_display_event_data_free (GdkDisplay *display,
GdkEvent *event)
{
}
static void
gdk_broadway_display_class_init (GdkBroadwayDisplayClass * class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
object_class->dispose = gdk_broadway_display_dispose;
object_class->finalize = gdk_broadway_display_finalize;
display_class->window_type = GDK_TYPE_BROADWAY_WINDOW;
display_class->get_name = gdk_broadway_display_get_name;
display_class->get_n_screens = gdk_broadway_display_get_n_screens;
display_class->get_screen = gdk_broadway_display_get_screen;
display_class->get_default_screen = gdk_broadway_display_get_default_screen;
display_class->beep = gdk_broadway_display_beep;
display_class->sync = gdk_broadway_display_sync;
display_class->flush = gdk_broadway_display_flush;
display_class->has_pending = gdk_broadway_display_has_pending;
display_class->queue_events = _gdk_broadway_display_queue_events;
display_class->get_default_group = gdk_broadway_display_get_default_group;
display_class->supports_selection_notification = gdk_broadway_display_supports_selection_notification;
display_class->request_selection_notification = gdk_broadway_display_request_selection_notification;
display_class->supports_clipboard_persistence = gdk_broadway_display_supports_clipboard_persistence;
display_class->store_clipboard = gdk_broadway_display_store_clipboard;
display_class->supports_shapes = gdk_broadway_display_supports_shapes;
display_class->supports_input_shapes = gdk_broadway_display_supports_input_shapes;
display_class->supports_composite = gdk_broadway_display_supports_composite;
display_class->list_devices = gdk_broadway_display_list_devices;
display_class->get_cursor_for_type = _gdk_broadway_display_get_cursor_for_type;
display_class->get_cursor_for_name = _gdk_broadway_display_get_cursor_for_name;
display_class->get_cursor_for_pixbuf = _gdk_broadway_display_get_cursor_for_pixbuf;
display_class->get_default_cursor_size = _gdk_broadway_display_get_default_cursor_size;
display_class->get_maximal_cursor_size = _gdk_broadway_display_get_maximal_cursor_size;
display_class->supports_cursor_alpha = _gdk_broadway_display_supports_cursor_alpha;
display_class->supports_cursor_color = _gdk_broadway_display_supports_cursor_color;
display_class->before_process_all_updates = _gdk_broadway_display_before_process_all_updates;
display_class->after_process_all_updates = _gdk_broadway_display_after_process_all_updates;
display_class->get_next_serial = gdk_broadway_display_get_next_serial;
display_class->notify_startup_complete = gdk_broadway_display_notify_startup_complete;
display_class->event_data_copy = gdk_broadway_display_event_data_copy;
display_class->event_data_free = gdk_broadway_display_event_data_free;
display_class->create_window_impl = _gdk_broadway_display_create_window_impl;
display_class->get_keymap = _gdk_broadway_display_get_keymap;
display_class->get_selection_owner = _gdk_broadway_display_get_selection_owner;
display_class->set_selection_owner = _gdk_broadway_display_set_selection_owner;
display_class->send_selection_notify = _gdk_broadway_display_send_selection_notify;
display_class->get_selection_property = _gdk_broadway_display_get_selection_property;
display_class->convert_selection = _gdk_broadway_display_convert_selection;
display_class->text_property_to_utf8_list = _gdk_broadway_display_text_property_to_utf8_list;
display_class->utf8_to_string_target = _gdk_broadway_display_utf8_to_string_target;
}
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