Pileus Git - ~andy/gtk/blob - gdk/broadway/gdkdisplay-broadway.c

   1 /* GDK - The GIMP Drawing Kit
   2  * gdkdisplay-broadway.c
   3  *
   4  * Copyright 2001 Sun Microsystems Inc.
   5  * Copyright (C) 2004 Nokia Corporation
   6  *
   7  * Erwann Chenede <erwann.chenede@sun.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Library General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Library General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Library General Public
  20  * License along with this library; if not, write to the
  21  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22  * Boston, MA 02111-1307, USA.
  23  */
  24
  25 #include "config.h"
  26
  27 #include "gdkdisplay-broadway.h"
  28
  29 #include "gdkdisplay.h"
  30 #include "gdkeventsource.h"
  31 #include "gdkscreen.h"
  32 #include "gdkscreen-broadway.h"
  33 #include "gdkinternals.h"
  34 #include "gdkdeviceprivate.h"
  35 #include "gdkdevicemanager-broadway.h"
  36
  37 #include <glib.h>
  38 #include <glib/gprintf.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <errno.h>
  42 #include <unistd.h>
  43
  44 static void   gdk_broadway_display_dispose            (GObject            *object);
  45 static void   gdk_broadway_display_finalize           (GObject            *object);
  46
  47 G_DEFINE_TYPE (GdkBroadwayDisplay, gdk_broadway_display, GDK_TYPE_DISPLAY)
  48
  49 static void
  50 gdk_broadway_display_init (GdkBroadwayDisplay *display)
  51 {
  52   _gdk_broadway_display_manager_add_display (gdk_display_manager_get (),
  53                                              GDK_DISPLAY_OBJECT (display));
  54   display->id_ht = g_hash_table_new (NULL, NULL);
  55 }
  56
  57 static void
  58 gdk_event_init (GdkDisplay *display)
  59 {
  60   GdkBroadwayDisplay *broadway_display;
  61
  62   broadway_display = GDK_BROADWAY_DISPLAY (display);
  63   broadway_display->event_source = _gdk_broadway_event_source_new (display);
  64   broadway_display->saved_serial = 1;
  65 }
  66
  67 static void
  68 gdk_broadway_display_init_input (GdkDisplay *display)
  69 {
  70   GdkBroadwayDisplay *broadway_display;
  71   GdkDeviceManager *device_manager;
  72   GdkDevice *device;
  73   GList *list, *l;
  74
  75   broadway_display = GDK_BROADWAY_DISPLAY (display);
  76   device_manager = gdk_display_get_device_manager (display);
  77
  78   /* For backwards compatibility, just add
  79    * floating devices that are not keyboards.
  80    */
  81   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
  82
  83   for (l = list; l; l = l->next)
  84     {
  85       device = l->data;
  86
  87       if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
  88         continue;
  89
  90       broadway_display->input_devices = g_list_prepend (broadway_display->input_devices,
  91                                                    g_object_ref (l->data));
  92     }
  93
  94   g_list_free (list);
  95
  96   /* Now set "core" pointer to the first
  97    * master device that is a pointer.
  98    */
  99   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
 100
 101   for (l = list; l; l = l->next)
 102     {
 103       device = list->data;
 104
 105       if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
 106         continue;
 107
 108       display->core_pointer = device;
 109       break;
 110     }
 111
 112   /* Add the core pointer to the devices list */
 113   broadway_display->input_devices = g_list_prepend (broadway_display->input_devices,
 114                                                g_object_ref (display->core_pointer));
 115
 116   g_list_free (list);
 117 }
 118
 119 typedef struct HttpRequest {
 120   GdkDisplay *display;
 121   GSocketConnection *connection;
 122   GDataInputStream *data;
 123   GString *request;
 124 }  HttpRequest;
 125
 126 static void
 127 http_request_free (HttpRequest *request)
 128 {
 129   g_object_unref (request->connection);
 130   g_object_unref (request->data);
 131   g_string_free (request->request, TRUE);
 132   g_free (request);
 133 }
 134
 135 struct BroadwayInput {
 136   GdkDisplay *display;
 137   GSocketConnection *connection;
 138   GByteArray *buffer;
 139   GSource *source;
 140 };
 141
 142 static void
 143 broadway_input_free (BroadwayInput *input)
 144 {
 145   g_object_unref (input->connection);
 146   g_byte_array_free (input->buffer, FALSE);
 147   g_source_destroy (input->source);
 148   g_free (input);
 149 }
 150
 151 static void
 152 process_input_messages (GdkBroadwayDisplay *broadway_display)
 153 {
 154   BroadwayInputMsg *message;
 155
 156   while (broadway_display->input_messages)
 157     {
 158       message = broadway_display->input_messages->data;
 159       broadway_display->input_messages =
 160         g_list_delete_link (broadway_display->input_messages,
 161                             broadway_display->input_messages);
 162
 163       _gdk_broadway_events_got_input (GDK_DISPLAY (broadway_display), message);
 164       g_free (message);
 165     }
 166 }
 167
 168 static char *
 169 parse_pointer_data (char *p, BroadwayInputPointerMsg *data)
 170 {
 171   data->mouse_window_id = strtol (p, &p, 10);
 172   p++; /* Skip , */
 173   data->event_window_id = strtol (p, &p, 10);
 174   p++; /* Skip , */
 175   data->root_x = strtol (p, &p, 10);
 176   p++; /* Skip , */
 177   data->root_y = strtol (p, &p, 10);
 178   p++; /* Skip , */
 179   data->win_x = strtol (p, &p, 10);
 180   p++; /* Skip , */
 181   data->win_y = strtol (p, &p, 10);
 182   p++; /* Skip , */
 183   data->state = strtol (p, &p, 10);
 184
 185   return p;
 186 }
 187
 188 static void
 189 update_future_pointer_info (GdkBroadwayDisplay *broadway_display, BroadwayInputPointerMsg *data)
 190 {
 191   broadway_display->future_root_x = data->root_x;
 192   broadway_display->future_root_y = data->root_y;
 193   broadway_display->future_mouse_in_toplevel = data->mouse_window_id;
 194 }
 195
 196 static void
 197 parse_input_message (BroadwayInput *input, const char *message)
 198 {
 199   GdkBroadwayDisplay *broadway_display;
 200   BroadwayInputMsg msg;
 201   char *p;
 202
 203   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 204
 205   p = (char *)message;
 206   msg.base.type = *p++;
 207   msg.base.serial = (guint32)strtol (p, &p, 10);
 208   p++; /* Skip , */
 209   msg.base.time = strtol(p, &p, 10);
 210   p++; /* Skip , */
 211
 212   switch (msg.base.type) {
 213   case 'e': /* Enter */
 214   case 'l': /* Leave */
 215     p = parse_pointer_data (p, &msg.pointer);
 216     update_future_pointer_info (broadway_display, &msg.pointer);
 217     p++; /* Skip , */
 218     msg.crossing.mode = strtol(p, &p, 10);
 219     break;
 220
 221   case 'm': /* Mouse move */
 222     p = parse_pointer_data (p, &msg.pointer);
 223     update_future_pointer_info (broadway_display, &msg.pointer);
 224     break;
 225
 226   case 'b':
 227   case 'B':
 228     p = parse_pointer_data (p, &msg.pointer);
 229     update_future_pointer_info (broadway_display, &msg.pointer);
 230     p++; /* Skip , */
 231     msg.button.button = strtol(p, &p, 10);
 232     break;
 233
 234   case 's':
 235     p = parse_pointer_data (p, &msg.pointer);
 236     update_future_pointer_info (broadway_display, &msg.pointer);
 237     p++; /* Skip , */
 238     msg.scroll.dir = strtol(p, &p, 10);
 239     break;
 240
 241   case 'k':
 242   case 'K':
 243     msg.key.key = strtol(p, &p, 10);
 244     break;
 245
 246   case 'g':
 247   case 'u':
 248     msg.grab_reply.res = strtol(p, &p, 10);
 249     break;
 250
 251   case 'w':
 252     msg.configure_notify.id = strtol(p, &p, 10);
 253     p++; /* Skip , */
 254     msg.configure_notify.x = strtol (p, &p, 10);
 255     p++; /* Skip , */
 256     msg.configure_notify.y = strtol (p, &p, 10);
 257     p++; /* Skip , */
 258     msg.configure_notify.width = strtol (p, &p, 10);
 259     p++; /* Skip , */
 260     msg.configure_notify.height = strtol (p, &p, 10);
 261     break;
 262
 263   case 'W':
 264     msg.delete_notify.id = strtol(p, &p, 10);
 265     break;
 266
 267   default:
 268     g_printerr ("Unknown input command %s\n", message);
 269     break;
 270   }
 271
 272   broadway_display->input_messages = g_list_append (broadway_display->input_messages, g_memdup (&msg, sizeof (msg)));
 273
 274 }
 275
 276 static void
 277 parse_input (BroadwayInput *input)
 278 {
 279   GdkBroadwayDisplay *broadway_display;
 280   char *buf, *ptr;
 281   gsize len;
 282
 283   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 284
 285   buf = (char *)input->buffer->data;
 286   len = input->buffer->len;
 287
 288   if (len == 0)
 289     return;
 290
 291   if (buf[0] != 0)
 292     {
 293       broadway_display->input = NULL;
 294       broadway_input_free (input);
 295       return;
 296     }
 297
 298   while ((ptr = memchr (buf, 0xff, len)) != NULL)
 299     {
 300       *ptr = 0;
 301       ptr++;
 302
 303       parse_input_message (input, buf + 1);
 304
 305       len -= ptr - buf;
 306       buf = ptr;
 307
 308       if (len > 0 && buf[0] != 0)
 309         {
 310           broadway_display->input = NULL;
 311           broadway_input_free (input);
 312           break;
 313         }
 314     }
 315
 316   g_byte_array_remove_range (input->buffer, 0, buf - (char *)input->buffer->data);
 317 }
 318
 319
 320 static gboolean
 321 process_input_idle_cb (GdkBroadwayDisplay *display)
 322 {
 323   display->process_input_idle = 0;
 324   process_input_messages (display);
 325   return FALSE;
 326 }
 327
 328 static void
 329 queue_process_input_at_idle (GdkBroadwayDisplay *broadway_display)
 330 {
 331   if (broadway_display->process_input_idle == 0)
 332     broadway_display->process_input_idle =
 333       g_idle_add_full (GDK_PRIORITY_EVENTS, (GSourceFunc)process_input_idle_cb, broadway_display, NULL);
 334 }
 335
 336 static void
 337 _gdk_broadway_display_read_all_input_nonblocking (GdkDisplay *display)
 338 {
 339   GdkBroadwayDisplay *broadway_display;
 340   GInputStream *in;
 341   gssize res;
 342   guint8 buffer[1024];
 343   GError *error;
 344   BroadwayInput *input;
 345
 346   broadway_display = GDK_BROADWAY_DISPLAY (display);
 347   if (broadway_display->input == NULL)
 348     return;
 349
 350   input = broadway_display->input;
 351
 352   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 353
 354   error = NULL;
 355   res = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (in),
 356                                                   buffer, sizeof (buffer), NULL, &error);
 357
 358   if (res <= 0)
 359     {
 360       if (res < 0 &&
 361           g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
 362         {
 363           g_error_free (error);
 364           return;
 365         }
 366
 367       broadway_display->input = NULL;
 368       broadway_input_free (input);
 369       if (res < 0)
 370         {
 371           g_print ("input error %s", error->message);
 372           g_error_free (error);
 373         }
 374       return;
 375     }
 376
 377   g_byte_array_append (input->buffer, buffer, res);
 378
 379   parse_input (input);
 380 }
 381
 382 void
 383 _gdk_broadway_display_consume_all_input (GdkDisplay *display)
 384 {
 385   GdkBroadwayDisplay *broadway_display;
 386
 387   broadway_display = GDK_BROADWAY_DISPLAY (display);
 388   _gdk_broadway_display_read_all_input_nonblocking (display);
 389
 390   /* Since we're parsing input but not processing the resulting messages
 391      we might not get a readable callback on the stream, so queue an idle to
 392      process the messages */
 393   queue_process_input_at_idle (broadway_display);
 394 }
 395
 396
 397 static gboolean
 398 input_data_cb (GObject  *stream,
 399                BroadwayInput *input)
 400 {
 401   GdkBroadwayDisplay *broadway_display;
 402
 403   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 404   _gdk_broadway_display_read_all_input_nonblocking (input->display);
 405
 406   process_input_messages (broadway_display);
 407
 408   return TRUE;
 409 }
 410
 411 /* Note: This may be called while handling a message (i.e. sorta recursively) */
 412 BroadwayInputMsg *
 413 _gdk_broadway_display_block_for_input (GdkDisplay *display, char op,
 414                                        guint32 serial, gboolean remove_message)
 415 {
 416   GdkBroadwayDisplay *broadway_display;
 417   BroadwayInputMsg *message;
 418   gssize res;
 419   guint8 buffer[1024];
 420   BroadwayInput *input;
 421   GInputStream *in;
 422   GList *l;
 423
 424   gdk_display_flush (display);
 425
 426   broadway_display = GDK_BROADWAY_DISPLAY (display);
 427   if (broadway_display->input == NULL)
 428     return NULL;
 429
 430   input = broadway_display->input;
 431
 432   while (TRUE) {
 433     /* Check for existing reply in queue */
 434
 435     for (l = broadway_display->input_messages; l != NULL; l = l->next)
 436       {
 437         message = l->data;
 438
 439         if (message->base.type == op)
 440           {
 441             if (message->base.serial == serial)
 442               {
 443                 if (remove_message)
 444                   broadway_display->input_messages =
 445                     g_list_delete_link (broadway_display->input_messages, l);
 446                 return message;
 447               }
 448           }
 449       }
 450
 451     /* Not found, read more, blocking */
 452
 453     in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 454     res = g_input_stream_read (in, buffer, sizeof (buffer), NULL, NULL);
 455     if (res <= 0)
 456       return NULL;
 457     g_byte_array_append (input->buffer, buffer, res);
 458
 459     parse_input (input);
 460
 461     /* Since we're parsing input but not processing the resulting messages
 462        we might not get a readable callback on the stream, so queue an idle to
 463        process the messages */
 464     queue_process_input_at_idle (broadway_display);
 465   }
 466 }
 467
 468 #include <unistd.h>
 469 #include <fcntl.h>
 470 static void
 471 set_fd_blocking (int fd)
 472 {
 473   glong arg;
 474
 475   if ((arg = fcntl (fd, F_GETFL, NULL)) < 0)
 476     arg = 0;
 477
 478   arg = arg & ~O_NONBLOCK;
 479
 480   fcntl (fd, F_SETFL, arg);
 481 }
 482
 483 static char *
 484 parse_line (char *line, char *key)
 485 {
 486   char *p;
 487
 488   if (!g_str_has_prefix (line, key))
 489     return NULL;
 490   p = line + strlen (key);
 491   if (*p != ':')
 492     return NULL;
 493   p++;
 494   /* Skip optional initial space */
 495   if (*p == ' ')
 496     p++;
 497   return p;
 498 }
 499 static void
 500 send_error (HttpRequest *request,
 501             int error_code,
 502             const char *reason)
 503 {
 504   char *res;
 505
 506   res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
 507                          "<html><head><title>%d %s</title></head>"
 508                          "<body>%s</body></html>",
 509                          error_code, reason,
 510                          error_code, reason,
 511                          reason);
 512   /* TODO: This should really be async */
 513   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 514                              res, strlen (res), NULL, NULL, NULL);
 515   g_free (res);
 516   http_request_free (request);
 517 }
 518
 519 static void
 520 start_input (HttpRequest *request)
 521 {
 522   char **lines;
 523   char *p;
 524   int num_key1, num_key2;
 525   guint64 key1, key2;
 526   int num_space;
 527   int i;
 528   guint8 challenge[16];
 529   char *res;
 530   gsize len;
 531   GChecksum *checksum;
 532   char *origin, *host;
 533   GdkBroadwayDisplay *broadway_display;
 534   BroadwayInput *input;
 535   const void *data_buffer;
 536   gsize data_buffer_size;
 537   GInputStream *in;
 538
 539   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 540
 541   if (broadway_display->input != NULL)
 542     {
 543       send_error (request, 409, "Input already handled");
 544       return;
 545     }
 546
 547   lines = g_strsplit (request->request->str, "\n", 0);
 548
 549   num_key1 = 0;
 550   num_key2 = 0;
 551   key1 = 0;
 552   key2 = 0;
 553   origin = NULL;
 554   host = NULL;
 555   for (i = 0; lines[i] != NULL; i++)
 556     {
 557       if ((p = parse_line (lines[i], "Sec-WebSocket-Key1")))
 558         {
 559           num_space = 0;
 560           while (*p != 0)
 561             {
 562               if (g_ascii_isdigit (*p))
 563                 key1 = key1 * 10 + g_ascii_digit_value (*p);
 564               else if (*p == ' ')
 565                 num_space++;
 566
 567               p++;
 568             }
 569           key1 /= num_space;
 570           num_key1++;
 571         }
 572       else if ((p = parse_line (lines[i], "Sec-WebSocket-Key2")))
 573         {
 574           num_space = 0;
 575           while (*p != 0)
 576             {
 577               if (g_ascii_isdigit (*p))
 578                 key2 = key2 * 10 + g_ascii_digit_value (*p);
 579               else if (*p == ' ')
 580                 num_space++;
 581
 582               p++;
 583             }
 584           key2 /= num_space;
 585           num_key2++;
 586         }
 587       else if ((p = parse_line (lines[i], "Origin")))
 588         {
 589           origin = p;
 590         }
 591       else if ((p = parse_line (lines[i], "Host")))
 592         {
 593           host = p;
 594         }
 595     }
 596
 597   if (num_key1 != 1 || num_key2 != 1 || origin == NULL || host == NULL)
 598     {
 599       g_strfreev (lines);
 600       send_error (request, 400, "Bad websocket request");
 601       return;
 602     }
 603
 604   challenge[0] = (key1 >> 24) & 0xff;
 605   challenge[1] = (key1 >> 16) & 0xff;
 606   challenge[2] = (key1 >>  8) & 0xff;
 607   challenge[3] = (key1 >>  0) & 0xff;
 608   challenge[4] = (key2 >> 24) & 0xff;
 609   challenge[5] = (key2 >> 16) & 0xff;
 610   challenge[6] = (key2 >>  8) & 0xff;
 611   challenge[7] = (key2 >>  0) & 0xff;
 612
 613   if (!g_input_stream_read_all (G_INPUT_STREAM (request->data), challenge+8, 8, NULL, NULL, NULL))
 614     {
 615       g_strfreev (lines);
 616       send_error (request, 400, "Bad websocket request");
 617       return;
 618     }
 619
 620   checksum = g_checksum_new (G_CHECKSUM_MD5);
 621   g_checksum_update (checksum, challenge, 16);
 622   len = 16;
 623   g_checksum_get_digest (checksum, challenge, &len);
 624   g_checksum_free (checksum);
 625
 626   res = g_strdup_printf ("HTTP/1.1 101 WebSocket Protocol Handshake\r\n"
 627                          "Upgrade: WebSocket\r\n"
 628                          "Connection: Upgrade\r\n"
 629                          "Sec-WebSocket-Origin: %s\r\n"
 630                          "Sec-WebSocket-Location: ws://%s/input\r\n"
 631                          "Sec-WebSocket-Protocol: broadway\r\n"
 632                          "\r\n",
 633                          origin, host);
 634
 635   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 636                              res, strlen (res), NULL, NULL, NULL);
 637   g_free (res);
 638   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 639                              challenge, 16, NULL, NULL, NULL);
 640
 641   input = g_new0 (BroadwayInput, 1);
 642
 643   input->display = request->display;
 644   input->connection = g_object_ref (request->connection);
 645
 646   data_buffer = g_buffered_input_stream_peek_buffer (G_BUFFERED_INPUT_STREAM (request->data), &data_buffer_size);
 647   input->buffer = g_byte_array_sized_new (data_buffer_size);
 648   g_byte_array_append (input->buffer, data_buffer, data_buffer_size);
 649
 650   broadway_display->input = input;
 651
 652   /* This will free and close the data input stream, but we got all the buffered content already */
 653   http_request_free (request);
 654
 655   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 656   input->source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (in), NULL);
 657   g_source_set_callback (input->source, (GSourceFunc)input_data_cb, input, NULL);
 658   g_source_attach (input->source, NULL);
 659
 660   /* Process any data in the pipe already */
 661   parse_input (input);
 662   process_input_messages (broadway_display);
 663
 664   g_strfreev (lines);
 665 }
 666
 667 static void
 668 start_output (HttpRequest *request)
 669 {
 670   GSocket *socket;
 671   GdkBroadwayDisplay *broadway_display;
 672   int fd;
 673
 674   socket = g_socket_connection_get_socket (request->connection);
 675
 676   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 677   fd = g_socket_get_fd (socket);
 678   set_fd_blocking (fd);
 679   /* We dup this because otherwise it'll be closed with the request SocketConnection */
 680
 681   if (broadway_display->output)
 682     {
 683       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 684       broadway_output_free (broadway_display->output);
 685     }
 686
 687   broadway_display->output = broadway_output_new (dup(fd), broadway_display->saved_serial);
 688   _gdk_broadway_resync_windows ();
 689
 690   if (broadway_display->pointer_grab_window)
 691     broadway_output_grab_pointer (broadway_display->output,
 692                                   GDK_WINDOW_IMPL_BROADWAY (broadway_display->pointer_grab_window->impl)->id,
 693                                   broadway_display->pointer_grab_owner_events);
 694
 695   http_request_free (request);
 696 }
 697
 698 static void
 699 send_data (HttpRequest *request,
 700              const char *mimetype,
 701              const char *data, gsize len)
 702 {
 703   char *res;
 704
 705   res = g_strdup_printf ("HTTP/1.0 200 OK\r\n"
 706                          "Content-Type: %s\r\n"
 707                          "Content-Length: %"G_GSIZE_FORMAT"\r\n"
 708                          "\r\n",
 709                          mimetype, len);
 710   /* TODO: This should really be async */
 711   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 712                              res, strlen (res), NULL, NULL, NULL);
 713   g_free (res);
 714   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 715                              data, len, NULL, NULL, NULL);
 716   http_request_free (request);
 717 }
 718
 719 #include "clienthtml.h"
 720 #include "broadwayjs.h"
 721
 722 static void
 723 got_request (HttpRequest *request)
 724 {
 725   char *start, *escaped, *tmp, *version;
 726
 727   if (!g_str_has_prefix (request->request->str, "GET "))
 728     {
 729       send_error (request, 501, "Only GET implemented");
 730       return;
 731     }
 732
 733   start = request->request->str + 4; /* Skip "GET " */
 734
 735   while (*start == ' ')
 736     start++;
 737
 738   for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 739     ;
 740   escaped = g_strndup (start, tmp - start);
 741   version = NULL;
 742   if (*tmp == ' ')
 743     {
 744       start = tmp;
 745       while (*start == ' ')
 746         start++;
 747       for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 748         ;
 749       version = g_strndup (start, tmp - start);
 750     }
 751
 752   if (strcmp (escaped, "/client.html") == 0 || strcmp (escaped, "/") == 0)
 753     send_data (request, "text/html", client_html, G_N_ELEMENTS(client_html) - 1);
 754   else if (strcmp (escaped, "/broadway.js") == 0)
 755     send_data (request, "text/javascript", broadway_js, G_N_ELEMENTS(broadway_js) - 1);
 756   else if (strcmp (escaped, "/output") == 0)
 757     start_output (request);
 758   else if (strcmp (escaped, "/input") == 0)
 759     start_input (request);
 760   else
 761     send_error (request, 404, "File not found");
 762 }
 763
 764 static void
 765 got_http_request_line (GInputStream *stream,
 766                        GAsyncResult *result,
 767                        HttpRequest *request)
 768 {
 769   char *line;
 770
 771   line = g_data_input_stream_read_line_finish (G_DATA_INPUT_STREAM (stream), result, NULL, NULL);
 772   if (line == NULL)
 773     {
 774       http_request_free (request);
 775       g_printerr ("Error reading request lines\n");
 776       return;
 777     }
 778   if (strlen (line) == 0)
 779     got_request (request);
 780   else
 781     {
 782       /* Protect against overflow in request length */
 783       if (request->request->len > 1024 * 5)
 784         {
 785           send_error (request, 400, "Request to long");
 786         }
 787       else
 788         {
 789           g_string_append_printf (request->request, "%s\n", line);
 790           g_data_input_stream_read_line_async (request->data, 0, NULL,
 791                                                (GAsyncReadyCallback)got_http_request_line, request);
 792         }
 793     }
 794   g_free (line);
 795 }
 796
 797 static gboolean
 798 handle_incoming_connection (GSocketService    *service,
 799                             GSocketConnection *connection,
 800                             GObject           *source_object)
 801 {
 802   HttpRequest *request;
 803   GInputStream *in;
 804
 805   request = g_new0 (HttpRequest, 1);
 806   request->connection = g_object_ref (connection);
 807   request->display = (GdkDisplay *) source_object;
 808   request->request = g_string_new ("");
 809
 810   in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
 811
 812   request->data = g_data_input_stream_new (in);
 813   g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (request->data), FALSE);
 814   /* Be tolerant of input */
 815   g_data_input_stream_set_newline_type (request->data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
 816
 817   g_data_input_stream_read_line_async (request->data, 0, NULL,
 818                                        (GAsyncReadyCallback)got_http_request_line, request);
 819   return TRUE;
 820 }
 821
 822 GdkDisplay *
 823 _gdk_broadway_display_open (const gchar *display_name)
 824 {
 825   GdkDisplay *display;
 826   GdkBroadwayDisplay *broadway_display;
 827   GError *error;
 828   int port;
 829
 830   display = g_object_new (GDK_TYPE_BROADWAY_DISPLAY, NULL);
 831   broadway_display = GDK_BROADWAY_DISPLAY (display);
 832
 833   broadway_display->output = NULL;
 834
 835   /* initialize the display's screens */
 836   broadway_display->screens = g_new (GdkScreen *, 1);
 837   broadway_display->screens[0] = _gdk_broadway_screen_new (display, 0);
 838
 839   /* We need to initialize events after we have the screen
 840    * structures in places
 841    */
 842   _gdk_broadway_screen_events_init (broadway_display->screens[0]);
 843
 844   /*set the default screen */
 845   broadway_display->default_screen = broadway_display->screens[0];
 846
 847   display->device_manager = _gdk_broadway_device_manager_new (display);
 848
 849   gdk_event_init (display);
 850
 851   gdk_broadway_display_init_input (display);
 852   _gdk_broadway_display_init_dnd (display);
 853
 854   _gdk_broadway_screen_setup (broadway_display->screens[0]);
 855
 856   if (display_name == NULL)
 857     display_name = g_getenv ("BROADWAY_DISPLAY");
 858
 859   port = 0;
 860   if (display_name != NULL)
 861     port = strtol(display_name, NULL, 10);
 862   if (port == 0)
 863     port = 8080;
 864
 865   broadway_display->service = g_socket_service_new ();
 866   if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (broadway_display->service),
 867                                         port,
 868                                         G_OBJECT (display),
 869                                         &error))
 870     {
 871       g_printerr ("Unable to listen to port %d: %s\n", 8080, error->message);
 872       g_error_free (error);
 873       return NULL;
 874     }
 875   g_signal_connect (broadway_display->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL);
 876
 877   g_signal_emit_by_name (display, "opened");
 878   g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
 879
 880   return display;
 881 }
 882
 883
 884 static G_CONST_RETURN gchar *
 885 gdk_broadway_display_get_name (GdkDisplay *display)
 886 {
 887   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 888
 889   return (gchar *) "Broadway";
 890 }
 891
 892 static gint
 893 gdk_broadway_display_get_n_screens (GdkDisplay *display)
 894 {
 895   g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
 896
 897   return 1;
 898 }
 899
 900 static GdkScreen *
 901 gdk_broadway_display_get_screen (GdkDisplay *display,
 902                                  gint        screen_num)
 903 {
 904   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 905   g_return_val_if_fail (screen_num == 0, NULL);
 906
 907   return GDK_BROADWAY_DISPLAY (display)->screens[screen_num];
 908 }
 909
 910 static GdkScreen *
 911 gdk_broadway_display_get_default_screen (GdkDisplay *display)
 912 {
 913   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 914
 915   return GDK_BROADWAY_DISPLAY (display)->default_screen;
 916 }
 917
 918 static void
 919 gdk_broadway_display_beep (GdkDisplay *display)
 920 {
 921   g_return_if_fail (GDK_IS_DISPLAY (display));
 922 }
 923
 924 static void
 925 gdk_broadway_display_sync (GdkDisplay *display)
 926 {
 927   g_return_if_fail (GDK_IS_DISPLAY (display));
 928
 929 }
 930
 931 static void
 932 gdk_broadway_display_flush (GdkDisplay *display)
 933 {
 934   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (display);
 935
 936   g_return_if_fail (GDK_IS_DISPLAY (display));
 937
 938   if (broadway_display->output &&
 939       !broadway_output_flush (broadway_display->output))
 940     {
 941       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 942       broadway_output_free (broadway_display->output);
 943       broadway_display->output = NULL;
 944     }
 945 }
 946
 947 static gboolean
 948 gdk_broadway_display_has_pending (GdkDisplay *display)
 949 {
 950   return FALSE;
 951 }
 952
 953 static GdkWindow *
 954 gdk_broadway_display_get_default_group (GdkDisplay *display)
 955 {
 956   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 957
 958   return NULL;
 959 }
 960
 961 static void
 962 gdk_broadway_display_dispose (GObject *object)
 963 {
 964   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 965
 966   _gdk_broadway_display_manager_remove_display (gdk_display_manager_get (),
 967                                                 GDK_DISPLAY_OBJECT (object));
 968
 969   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_run_dispose, NULL);
 970
 971   _gdk_screen_close (broadway_display->screens[0]);
 972
 973   if (broadway_display->event_source)
 974     {
 975       g_source_destroy (broadway_display->event_source);
 976       g_source_unref (broadway_display->event_source);
 977       broadway_display->event_source = NULL;
 978     }
 979
 980   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->dispose (object);
 981 }
 982
 983 static void
 984 gdk_broadway_display_finalize (GObject *object)
 985 {
 986   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 987
 988   /* Keymap */
 989   if (broadway_display->keymap)
 990     g_object_unref (broadway_display->keymap);
 991
 992   _gdk_broadway_cursor_display_finalize (GDK_DISPLAY_OBJECT(broadway_display));
 993
 994   /* Atom Hashtable */
 995   g_hash_table_destroy (broadway_display->atom_from_virtual);
 996   g_hash_table_destroy (broadway_display->atom_to_virtual);
 997
 998   /* input GdkDevice list */
 999   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_unref, NULL);
1000   g_list_free (broadway_display->input_devices);
1001   /* Free all GdkScreens */
1002   g_object_unref (broadway_display->screens[0]);
1003   g_free (broadway_display->screens);
1004
1005   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->finalize (object);
1006 }
1007
1008 void
1009 _gdk_broadway_display_make_default (GdkDisplay *display)
1010 {
1011 }
1012
1013 static void
1014 gdk_broadway_display_notify_startup_complete (GdkDisplay  *display,
1015                                               const gchar *startup_id)
1016 {
1017 }
1018
1019 static gboolean
1020 gdk_broadway_display_supports_selection_notification (GdkDisplay *display)
1021 {
1022   return FALSE;
1023 }
1024
1025 static gboolean
1026 gdk_broadway_display_request_selection_notification (GdkDisplay *display,
1027                                                      GdkAtom     selection)
1028
1029 {
1030     return FALSE;
1031 }
1032
1033 static gboolean
1034 gdk_broadway_display_supports_clipboard_persistence (GdkDisplay *display)
1035 {
1036   return FALSE;
1037 }
1038
1039 static void
1040 gdk_broadway_display_store_clipboard (GdkDisplay    *display,
1041                                       GdkWindow     *clipboard_window,
1042                                       guint32        time_,
1043                                       const GdkAtom *targets,
1044                                       gint           n_targets)
1045 {
1046 }
1047
1048 static gboolean
1049 gdk_broadway_display_supports_shapes (GdkDisplay *display)
1050 {
1051   return FALSE;
1052 }
1053
1054 static gboolean
1055 gdk_broadway_display_supports_input_shapes (GdkDisplay *display)
1056 {
1057   return FALSE;
1058 }
1059
1060 static gboolean
1061 gdk_broadway_display_supports_composite (GdkDisplay *display)
1062 {
1063   return FALSE;
1064 }
1065
1066 static GList *
1067 gdk_broadway_display_list_devices (GdkDisplay *display)
1068 {
1069   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1070
1071   return GDK_BROADWAY_DISPLAY (display)->input_devices;
1072 }
1073
1074 static gulong
1075 gdk_broadway_display_get_next_serial (GdkDisplay *display)
1076 {
1077   GdkBroadwayDisplay *broadway_display;
1078   broadway_display = GDK_BROADWAY_DISPLAY (display);
1079   if (broadway_display->output)
1080     return broadway_output_get_next_serial (broadway_display->output);
1081   return broadway_display->saved_serial;
1082 }
1083
1084
1085 static void
1086 gdk_broadway_display_event_data_copy (GdkDisplay    *display,
1087                                       const GdkEvent *src,
1088                                       GdkEvent       *dst)
1089 {
1090 }
1091
1092 static void
1093 gdk_broadway_display_event_data_free (GdkDisplay    *display,
1094                                       GdkEvent *event)
1095 {
1096 }
1097
1098 static void
1099 gdk_broadway_display_class_init (GdkBroadwayDisplayClass * class)
1100 {
1101   GObjectClass *object_class = G_OBJECT_CLASS (class);
1102   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
1103
1104   object_class->dispose = gdk_broadway_display_dispose;
1105   object_class->finalize = gdk_broadway_display_finalize;
1106
1107   display_class->window_type = GDK_TYPE_BROADWAY_WINDOW;
1108
1109   display_class->get_name = gdk_broadway_display_get_name;
1110   display_class->get_n_screens = gdk_broadway_display_get_n_screens;
1111   display_class->get_screen = gdk_broadway_display_get_screen;
1112   display_class->get_default_screen = gdk_broadway_display_get_default_screen;
1113   display_class->beep = gdk_broadway_display_beep;
1114   display_class->sync = gdk_broadway_display_sync;
1115   display_class->flush = gdk_broadway_display_flush;
1116   display_class->has_pending = gdk_broadway_display_has_pending;
1117   display_class->queue_events = _gdk_broadway_display_queue_events;
1118   display_class->get_default_group = gdk_broadway_display_get_default_group;
1119   display_class->supports_selection_notification = gdk_broadway_display_supports_selection_notification;
1120   display_class->request_selection_notification = gdk_broadway_display_request_selection_notification;
1121   display_class->supports_clipboard_persistence = gdk_broadway_display_supports_clipboard_persistence;
1122   display_class->store_clipboard = gdk_broadway_display_store_clipboard;
1123   display_class->supports_shapes = gdk_broadway_display_supports_shapes;
1124   display_class->supports_input_shapes = gdk_broadway_display_supports_input_shapes;
1125   display_class->supports_composite = gdk_broadway_display_supports_composite;
1126   display_class->list_devices = gdk_broadway_display_list_devices;
1127   display_class->get_cursor_for_type = _gdk_broadway_display_get_cursor_for_type;
1128   display_class->get_cursor_for_name = _gdk_broadway_display_get_cursor_for_name;
1129   display_class->get_cursor_for_pixbuf = _gdk_broadway_display_get_cursor_for_pixbuf;
1130   display_class->get_default_cursor_size = _gdk_broadway_display_get_default_cursor_size;
1131   display_class->get_maximal_cursor_size = _gdk_broadway_display_get_maximal_cursor_size;
1132   display_class->supports_cursor_alpha = _gdk_broadway_display_supports_cursor_alpha;
1133   display_class->supports_cursor_color = _gdk_broadway_display_supports_cursor_color;
1134
1135   display_class->before_process_all_updates = _gdk_broadway_display_before_process_all_updates;
1136   display_class->after_process_all_updates = _gdk_broadway_display_after_process_all_updates;
1137   display_class->get_next_serial = gdk_broadway_display_get_next_serial;
1138   display_class->notify_startup_complete = gdk_broadway_display_notify_startup_complete;
1139   display_class->event_data_copy = gdk_broadway_display_event_data_copy;
1140   display_class->event_data_free = gdk_broadway_display_event_data_free;
1141   display_class->create_window_impl = _gdk_broadway_display_create_window_impl;
1142   display_class->get_keymap = _gdk_broadway_display_get_keymap;
1143   display_class->get_selection_owner = _gdk_broadway_display_get_selection_owner;
1144   display_class->set_selection_owner = _gdk_broadway_display_set_selection_owner;
1145   display_class->send_selection_notify = _gdk_broadway_display_send_selection_notify;
1146   display_class->get_selection_property = _gdk_broadway_display_get_selection_property;
1147   display_class->convert_selection = _gdk_broadway_display_convert_selection;
1148   display_class->text_property_to_utf8_list = _gdk_broadway_display_text_property_to_utf8_list;
1149   display_class->utf8_to_string_target = _gdk_broadway_display_utf8_to_string_target;
1150 }
1151