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 'q':
 252     msg.query_reply.root_x = strtol(p, &p, 10);
 253     p++; /* Skip , */
 254     msg.query_reply.root_y = strtol(p, &p, 10);
 255     p++; /* Skip , */
 256     msg.query_reply.win_x = strtol(p, &p, 10);
 257     p++; /* Skip , */
 258     msg.query_reply.win_y = strtol(p, &p, 10);
 259     p++; /* Skip , */
 260     msg.query_reply.window_with_mouse = strtol(p, &p, 10);
 261
 262     break;
 263   default:
 264     g_printerr ("Unknown input command %s\n", message);
 265     break;
 266   }
 267
 268   broadway_display->input_messages = g_list_append (broadway_display->input_messages, g_memdup (&msg, sizeof (msg)));
 269
 270 }
 271
 272 static void
 273 parse_input (BroadwayInput *input)
 274 {
 275   GdkBroadwayDisplay *broadway_display;
 276   char *buf, *ptr;
 277   gsize len;
 278
 279   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 280
 281   buf = (char *)input->buffer->data;
 282   len = input->buffer->len;
 283
 284   if (len == 0)
 285     return;
 286
 287   if (buf[0] != 0)
 288     {
 289       broadway_display->input = NULL;
 290       broadway_input_free (input);
 291       return;
 292     }
 293
 294   while ((ptr = memchr (buf, 0xff, len)) != NULL)
 295     {
 296       *ptr = 0;
 297       ptr++;
 298
 299       parse_input_message (input, buf + 1);
 300
 301       len -= ptr - buf;
 302       buf = ptr;
 303
 304       if (len > 0 && buf[0] != 0)
 305         {
 306           broadway_display->input = NULL;
 307           broadway_input_free (input);
 308           break;
 309         }
 310     }
 311
 312   g_byte_array_remove_range (input->buffer, 0, buf - (char *)input->buffer->data);
 313 }
 314
 315
 316 static gboolean
 317 process_input_idle_cb (GdkBroadwayDisplay *display)
 318 {
 319   display->process_input_idle = 0;
 320   process_input_messages (display);
 321   return FALSE;
 322 }
 323
 324 static void
 325 queue_process_input_at_idle (GdkBroadwayDisplay *broadway_display)
 326 {
 327   if (broadway_display->process_input_idle == 0)
 328     broadway_display->process_input_idle =
 329       g_idle_add_full (GDK_PRIORITY_EVENTS, (GSourceFunc)process_input_idle_cb, broadway_display, NULL);
 330 }
 331
 332 static void
 333 _gdk_broadway_display_read_all_input_nonblocking (GdkDisplay *display)
 334 {
 335   GdkBroadwayDisplay *broadway_display;
 336   GInputStream *in;
 337   gssize res;
 338   guint8 buffer[1024];
 339   GError *error;
 340   BroadwayInput *input;
 341
 342   broadway_display = GDK_BROADWAY_DISPLAY (display);
 343   if (broadway_display->input == NULL)
 344     return;
 345
 346   input = broadway_display->input;
 347
 348   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 349
 350   error = NULL;
 351   res = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (in),
 352                                                   buffer, sizeof (buffer), NULL, &error);
 353
 354   if (res <= 0)
 355     {
 356       if (res < 0 &&
 357           g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
 358         {
 359           g_error_free (error);
 360           return;
 361         }
 362
 363       broadway_display->input = NULL;
 364       broadway_input_free (input);
 365       if (res < 0)
 366         {
 367           g_print ("input error %s", error->message);
 368           g_error_free (error);
 369         }
 370       return;
 371     }
 372
 373   g_byte_array_append (input->buffer, buffer, res);
 374
 375   parse_input (input);
 376 }
 377
 378 static gboolean
 379 input_data_cb (GObject  *stream,
 380                BroadwayInput *input)
 381 {
 382   GdkBroadwayDisplay *broadway_display;
 383
 384   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 385   _gdk_broadway_display_read_all_input_nonblocking (input->display);
 386
 387   process_input_messages (broadway_display);
 388
 389   return TRUE;
 390 }
 391
 392 /* Note: This may be called while handling a message (i.e. sorta recursively) */
 393 BroadwayInputMsg *
 394 _gdk_broadway_display_block_for_input (GdkDisplay *display, char op,
 395                                        guint32 serial, gboolean remove_message)
 396 {
 397   GdkBroadwayDisplay *broadway_display;
 398   BroadwayInputMsg *message;
 399   gssize res;
 400   guint8 buffer[1024];
 401   BroadwayInput *input;
 402   GInputStream *in;
 403   GList *l;
 404
 405   gdk_display_flush (display);
 406
 407   broadway_display = GDK_BROADWAY_DISPLAY (display);
 408   if (broadway_display->input == NULL)
 409     return NULL;
 410
 411   input = broadway_display->input;
 412
 413   while (TRUE) {
 414     /* Check for existing reply in queue */
 415
 416     for (l = broadway_display->input_messages; l != NULL; l = l->next)
 417       {
 418         message = l->data;
 419
 420         if (message->base.type == op)
 421           {
 422             if (message->base.serial == serial)
 423               {
 424                 if (remove_message)
 425                   broadway_display->input_messages =
 426                     g_list_delete_link (broadway_display->input_messages, l);
 427                 return message;
 428               }
 429           }
 430       }
 431
 432     /* Not found, read more, blocking */
 433
 434     in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 435     res = g_input_stream_read (in, buffer, sizeof (buffer), NULL, NULL);
 436     if (res <= 0)
 437       return NULL;
 438     g_byte_array_append (input->buffer, buffer, res);
 439
 440     parse_input (input);
 441
 442     /* Since we're parsing input but not processing the resulting messages
 443        we might not get a readable callback on the stream, so queue an idle to
 444        process the messages */
 445     queue_process_input_at_idle (broadway_display);
 446   }
 447 }
 448
 449 #include <unistd.h>
 450 #include <fcntl.h>
 451 static void
 452 set_fd_blocking (int fd)
 453 {
 454   glong arg;
 455
 456   if ((arg = fcntl (fd, F_GETFL, NULL)) < 0)
 457     arg = 0;
 458
 459   arg = arg & ~O_NONBLOCK;
 460
 461   fcntl (fd, F_SETFL, arg);
 462 }
 463
 464 static char *
 465 parse_line (char *line, char *key)
 466 {
 467   char *p;
 468
 469   if (!g_str_has_prefix (line, key))
 470     return NULL;
 471   p = line + strlen (key);
 472   if (*p != ':')
 473     return NULL;
 474   p++;
 475   /* Skip optional initial space */
 476   if (*p == ' ')
 477     p++;
 478   return p;
 479 }
 480 static void
 481 send_error (HttpRequest *request,
 482             int error_code,
 483             const char *reason)
 484 {
 485   char *res;
 486
 487   res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
 488                          "<html><head><title>%d %s</title></head>"
 489                          "<body>%s</body></html>",
 490                          error_code, reason,
 491                          error_code, reason,
 492                          reason);
 493   /* TODO: This should really be async */
 494   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 495                              res, strlen (res), NULL, NULL, NULL);
 496   g_free (res);
 497   http_request_free (request);
 498 }
 499
 500 static void
 501 start_input (HttpRequest *request)
 502 {
 503   char **lines;
 504   char *p;
 505   int num_key1, num_key2;
 506   guint64 key1, key2;
 507   int num_space;
 508   int i;
 509   guint8 challenge[16];
 510   char *res;
 511   gsize len;
 512   GChecksum *checksum;
 513   char *origin, *host;
 514   GdkBroadwayDisplay *broadway_display;
 515   BroadwayInput *input;
 516   const void *data_buffer;
 517   gsize data_buffer_size;
 518   GInputStream *in;
 519
 520   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 521
 522   if (broadway_display->input != NULL)
 523     {
 524       send_error (request, 409, "Input already handled");
 525       return;
 526     }
 527
 528   lines = g_strsplit (request->request->str, "\n", 0);
 529
 530   num_key1 = 0;
 531   num_key2 = 0;
 532   key1 = 0;
 533   key2 = 0;
 534   origin = NULL;
 535   host = NULL;
 536   for (i = 0; lines[i] != NULL; i++)
 537     {
 538       if ((p = parse_line (lines[i], "Sec-WebSocket-Key1")))
 539         {
 540           num_space = 0;
 541           while (*p != 0)
 542             {
 543               if (g_ascii_isdigit (*p))
 544                 key1 = key1 * 10 + g_ascii_digit_value (*p);
 545               else if (*p == ' ')
 546                 num_space++;
 547
 548               p++;
 549             }
 550           key1 /= num_space;
 551           num_key1++;
 552         }
 553       else if ((p = parse_line (lines[i], "Sec-WebSocket-Key2")))
 554         {
 555           num_space = 0;
 556           while (*p != 0)
 557             {
 558               if (g_ascii_isdigit (*p))
 559                 key2 = key2 * 10 + g_ascii_digit_value (*p);
 560               else if (*p == ' ')
 561                 num_space++;
 562
 563               p++;
 564             }
 565           key2 /= num_space;
 566           num_key2++;
 567         }
 568       else if ((p = parse_line (lines[i], "Origin")))
 569         {
 570           origin = p;
 571         }
 572       else if ((p = parse_line (lines[i], "Host")))
 573         {
 574           host = p;
 575         }
 576     }
 577
 578   if (num_key1 != 1 || num_key2 != 1 || origin == NULL || host == NULL)
 579     {
 580       g_strfreev (lines);
 581       send_error (request, 400, "Bad websocket request");
 582       return;
 583     }
 584
 585   challenge[0] = (key1 >> 24) & 0xff;
 586   challenge[1] = (key1 >> 16) & 0xff;
 587   challenge[2] = (key1 >>  8) & 0xff;
 588   challenge[3] = (key1 >>  0) & 0xff;
 589   challenge[4] = (key2 >> 24) & 0xff;
 590   challenge[5] = (key2 >> 16) & 0xff;
 591   challenge[6] = (key2 >>  8) & 0xff;
 592   challenge[7] = (key2 >>  0) & 0xff;
 593
 594   if (!g_input_stream_read_all (G_INPUT_STREAM (request->data), challenge+8, 8, NULL, NULL, NULL))
 595     {
 596       g_strfreev (lines);
 597       send_error (request, 400, "Bad websocket request");
 598       return;
 599     }
 600
 601   checksum = g_checksum_new (G_CHECKSUM_MD5);
 602   g_checksum_update (checksum, challenge, 16);
 603   len = 16;
 604   g_checksum_get_digest (checksum, challenge, &len);
 605   g_checksum_free (checksum);
 606
 607   res = g_strdup_printf ("HTTP/1.1 101 WebSocket Protocol Handshake\r\n"
 608                          "Upgrade: WebSocket\r\n"
 609                          "Connection: Upgrade\r\n"
 610                          "Sec-WebSocket-Origin: %s\r\n"
 611                          "Sec-WebSocket-Location: ws://%s/input\r\n"
 612                          "Sec-WebSocket-Protocol: broadway\r\n"
 613                          "\r\n",
 614                          origin, host);
 615
 616   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 617                              res, strlen (res), NULL, NULL, NULL);
 618   g_free (res);
 619   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 620                              challenge, 16, NULL, NULL, NULL);
 621
 622   input = g_new0 (BroadwayInput, 1);
 623
 624   input->display = request->display;
 625   input->connection = g_object_ref (request->connection);
 626
 627   data_buffer = g_buffered_input_stream_peek_buffer (G_BUFFERED_INPUT_STREAM (request->data), &data_buffer_size);
 628   input->buffer = g_byte_array_sized_new (data_buffer_size);
 629   g_byte_array_append (input->buffer, data_buffer, data_buffer_size);
 630
 631   broadway_display->input = input;
 632
 633   /* This will free and close the data input stream, but we got all the buffered content already */
 634   http_request_free (request);
 635
 636   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 637   input->source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (in), NULL);
 638   g_source_set_callback (input->source, (GSourceFunc)input_data_cb, input, NULL);
 639   g_source_attach (input->source, NULL);
 640
 641   /* Process any data in the pipe already */
 642   parse_input (input);
 643   process_input_messages (broadway_display);
 644
 645   g_strfreev (lines);
 646 }
 647
 648 static void
 649 start_output (HttpRequest *request)
 650 {
 651   GSocket *socket;
 652   GdkBroadwayDisplay *broadway_display;
 653   int fd;
 654
 655   socket = g_socket_connection_get_socket (request->connection);
 656
 657   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 658   fd = g_socket_get_fd (socket);
 659   set_fd_blocking (fd);
 660   /* We dup this because otherwise it'll be closed with the request SocketConnection */
 661
 662   if (broadway_display->output)
 663     {
 664       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 665       broadway_output_free (broadway_display->output);
 666     }
 667
 668   broadway_display->output = broadway_output_new (dup(fd), broadway_display->saved_serial);
 669   _gdk_broadway_resync_windows ();
 670
 671   if (broadway_display->pointer_grab_window)
 672     broadway_output_grab_pointer (broadway_display->output,
 673                                   GDK_WINDOW_IMPL_BROADWAY (broadway_display->pointer_grab_window->impl)->id,
 674                                   broadway_display->pointer_grab_owner_events);
 675
 676   http_request_free (request);
 677 }
 678
 679 static void
 680 send_data (HttpRequest *request,
 681              const char *mimetype,
 682              const char *data, gsize len)
 683 {
 684   char *res;
 685
 686   res = g_strdup_printf ("HTTP/1.0 200 OK\r\n"
 687                          "Content-Type: %s\r\n"
 688                          "Content-Length: %"G_GSIZE_FORMAT"\r\n"
 689                          "\r\n",
 690                          mimetype, len);
 691   /* TODO: This should really be async */
 692   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 693                              res, strlen (res), NULL, NULL, NULL);
 694   g_free (res);
 695   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 696                              data, len, NULL, NULL, NULL);
 697   http_request_free (request);
 698 }
 699
 700 #include "clienthtml.h"
 701 #include "broadwayjs.h"
 702
 703 static void
 704 got_request (HttpRequest *request)
 705 {
 706   char *start, *escaped, *tmp, *version;
 707
 708   if (!g_str_has_prefix (request->request->str, "GET "))
 709     {
 710       send_error (request, 501, "Only GET implemented");
 711       return;
 712     }
 713
 714   start = request->request->str + 4; /* Skip "GET " */
 715
 716   while (*start == ' ')
 717     start++;
 718
 719   for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 720     ;
 721   escaped = g_strndup (start, tmp - start);
 722   version = NULL;
 723   if (*tmp == ' ')
 724     {
 725       start = tmp;
 726       while (*start == ' ')
 727         start++;
 728       for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 729         ;
 730       version = g_strndup (start, tmp - start);
 731     }
 732
 733   if (strcmp (escaped, "/client.html") == 0 || strcmp (escaped, "/") == 0)
 734     send_data (request, "text/html", client_html, G_N_ELEMENTS(client_html) - 1);
 735   else if (strcmp (escaped, "/broadway.js") == 0)
 736     send_data (request, "text/javascript", broadway_js, G_N_ELEMENTS(broadway_js) - 1);
 737   else if (strcmp (escaped, "/output") == 0)
 738     start_output (request);
 739   else if (strcmp (escaped, "/input") == 0)
 740     start_input (request);
 741   else
 742     send_error (request, 404, "File not found");
 743 }
 744
 745 static void
 746 got_http_request_line (GInputStream *stream,
 747                        GAsyncResult *result,
 748                        HttpRequest *request)
 749 {
 750   char *line;
 751
 752   line = g_data_input_stream_read_line_finish (G_DATA_INPUT_STREAM (stream), result, NULL, NULL);
 753   if (line == NULL)
 754     {
 755       http_request_free (request);
 756       g_printerr ("Error reading request lines\n");
 757       return;
 758     }
 759   if (strlen (line) == 0)
 760     got_request (request);
 761   else
 762     {
 763       /* Protect against overflow in request length */
 764       if (request->request->len > 1024 * 5)
 765         {
 766           send_error (request, 400, "Request to long");
 767         }
 768       else
 769         {
 770           g_string_append_printf (request->request, "%s\n", line);
 771           g_data_input_stream_read_line_async (request->data, 0, NULL,
 772                                                (GAsyncReadyCallback)got_http_request_line, request);
 773         }
 774     }
 775   g_free (line);
 776 }
 777
 778 static gboolean
 779 handle_incoming_connection (GSocketService    *service,
 780                             GSocketConnection *connection,
 781                             GObject           *source_object)
 782 {
 783   HttpRequest *request;
 784   GInputStream *in;
 785
 786   request = g_new0 (HttpRequest, 1);
 787   request->connection = g_object_ref (connection);
 788   request->display = (GdkDisplay *) source_object;
 789   request->request = g_string_new ("");
 790
 791   in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
 792
 793   request->data = g_data_input_stream_new (in);
 794   g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (request->data), FALSE);
 795   /* Be tolerant of input */
 796   g_data_input_stream_set_newline_type (request->data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
 797
 798   g_data_input_stream_read_line_async (request->data, 0, NULL,
 799                                        (GAsyncReadyCallback)got_http_request_line, request);
 800   return TRUE;
 801 }
 802
 803 GdkDisplay *
 804 _gdk_broadway_display_open (const gchar *display_name)
 805 {
 806   GdkDisplay *display;
 807   GdkBroadwayDisplay *broadway_display;
 808   GError *error;
 809   int port;
 810
 811   display = g_object_new (GDK_TYPE_BROADWAY_DISPLAY, NULL);
 812   broadway_display = GDK_BROADWAY_DISPLAY (display);
 813
 814   broadway_display->output = NULL;
 815
 816   /* initialize the display's screens */
 817   broadway_display->screens = g_new (GdkScreen *, 1);
 818   broadway_display->screens[0] = _gdk_broadway_screen_new (display, 0);
 819
 820   /* We need to initialize events after we have the screen
 821    * structures in places
 822    */
 823   _gdk_broadway_screen_events_init (broadway_display->screens[0]);
 824
 825   /*set the default screen */
 826   broadway_display->default_screen = broadway_display->screens[0];
 827
 828   display->device_manager = _gdk_broadway_device_manager_new (display);
 829
 830   gdk_event_init (display);
 831
 832   gdk_broadway_display_init_input (display);
 833   _gdk_broadway_display_init_dnd (display);
 834
 835   _gdk_broadway_screen_setup (broadway_display->screens[0]);
 836
 837   if (display_name == NULL)
 838     display_name = g_getenv ("BROADWAY_DISPLAY");
 839
 840   port = 0;
 841   if (display_name != NULL)
 842     port = strtol(display_name, NULL, 10);
 843   if (port == 0)
 844     port = 8080;
 845
 846   broadway_display->service = g_socket_service_new ();
 847   if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (broadway_display->service),
 848                                         port,
 849                                         G_OBJECT (display),
 850                                         &error))
 851     {
 852       g_printerr ("Unable to listen to port %d: %s\n", 8080, error->message);
 853       g_error_free (error);
 854       return NULL;
 855     }
 856   g_signal_connect (broadway_display->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL);
 857
 858   g_signal_emit_by_name (display, "opened");
 859   g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
 860
 861   return display;
 862 }
 863
 864
 865 static G_CONST_RETURN gchar *
 866 gdk_broadway_display_get_name (GdkDisplay *display)
 867 {
 868   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 869
 870   return (gchar *) "Broadway";
 871 }
 872
 873 static gint
 874 gdk_broadway_display_get_n_screens (GdkDisplay *display)
 875 {
 876   g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
 877
 878   return 1;
 879 }
 880
 881 static GdkScreen *
 882 gdk_broadway_display_get_screen (GdkDisplay *display,
 883                                  gint        screen_num)
 884 {
 885   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 886   g_return_val_if_fail (screen_num == 0, NULL);
 887
 888   return GDK_BROADWAY_DISPLAY (display)->screens[screen_num];
 889 }
 890
 891 static GdkScreen *
 892 gdk_broadway_display_get_default_screen (GdkDisplay *display)
 893 {
 894   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 895
 896   return GDK_BROADWAY_DISPLAY (display)->default_screen;
 897 }
 898
 899 static void
 900 gdk_broadway_display_beep (GdkDisplay *display)
 901 {
 902   g_return_if_fail (GDK_IS_DISPLAY (display));
 903 }
 904
 905 static void
 906 gdk_broadway_display_sync (GdkDisplay *display)
 907 {
 908   g_return_if_fail (GDK_IS_DISPLAY (display));
 909
 910 }
 911
 912 static void
 913 gdk_broadway_display_flush (GdkDisplay *display)
 914 {
 915   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (display);
 916
 917   g_return_if_fail (GDK_IS_DISPLAY (display));
 918
 919   if (broadway_display->output &&
 920       !broadway_output_flush (broadway_display->output))
 921     {
 922       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 923       broadway_output_free (broadway_display->output);
 924       broadway_display->output = NULL;
 925     }
 926 }
 927
 928 static gboolean
 929 gdk_broadway_display_has_pending (GdkDisplay *display)
 930 {
 931   return FALSE;
 932 }
 933
 934 static GdkWindow *
 935 gdk_broadway_display_get_default_group (GdkDisplay *display)
 936 {
 937   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 938
 939   return NULL;
 940 }
 941
 942 static void
 943 gdk_broadway_display_dispose (GObject *object)
 944 {
 945   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 946
 947   _gdk_broadway_display_manager_remove_display (gdk_display_manager_get (),
 948                                                 GDK_DISPLAY_OBJECT (object));
 949
 950   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_run_dispose, NULL);
 951
 952   _gdk_screen_close (broadway_display->screens[0]);
 953
 954   if (broadway_display->event_source)
 955     {
 956       g_source_destroy (broadway_display->event_source);
 957       g_source_unref (broadway_display->event_source);
 958       broadway_display->event_source = NULL;
 959     }
 960
 961   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->dispose (object);
 962 }
 963
 964 static void
 965 gdk_broadway_display_finalize (GObject *object)
 966 {
 967   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 968
 969   /* Keymap */
 970   if (broadway_display->keymap)
 971     g_object_unref (broadway_display->keymap);
 972
 973   _gdk_broadway_cursor_display_finalize (GDK_DISPLAY_OBJECT(broadway_display));
 974
 975   /* Atom Hashtable */
 976   g_hash_table_destroy (broadway_display->atom_from_virtual);
 977   g_hash_table_destroy (broadway_display->atom_to_virtual);
 978
 979   /* input GdkDevice list */
 980   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_unref, NULL);
 981   g_list_free (broadway_display->input_devices);
 982   /* Free all GdkScreens */
 983   g_object_unref (broadway_display->screens[0]);
 984   g_free (broadway_display->screens);
 985
 986   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->finalize (object);
 987 }
 988
 989 void
 990 _gdk_broadway_display_make_default (GdkDisplay *display)
 991 {
 992 }
 993
 994 static void
 995 gdk_broadway_display_notify_startup_complete (GdkDisplay  *display,
 996                                               const gchar *startup_id)
 997 {
 998 }
 999
1000 static gboolean
1001 gdk_broadway_display_supports_selection_notification (GdkDisplay *display)
1002 {
1003   return FALSE;
1004 }
1005
1006 static gboolean
1007 gdk_broadway_display_request_selection_notification (GdkDisplay *display,
1008                                                      GdkAtom     selection)
1009
1010 {
1011     return FALSE;
1012 }
1013
1014 static gboolean
1015 gdk_broadway_display_supports_clipboard_persistence (GdkDisplay *display)
1016 {
1017   return FALSE;
1018 }
1019
1020 static void
1021 gdk_broadway_display_store_clipboard (GdkDisplay    *display,
1022                                       GdkWindow     *clipboard_window,
1023                                       guint32        time_,
1024                                       const GdkAtom *targets,
1025                                       gint           n_targets)
1026 {
1027 }
1028
1029 static gboolean
1030 gdk_broadway_display_supports_shapes (GdkDisplay *display)
1031 {
1032   return FALSE;
1033 }
1034
1035 static gboolean
1036 gdk_broadway_display_supports_input_shapes (GdkDisplay *display)
1037 {
1038   return FALSE;
1039 }
1040
1041 static gboolean
1042 gdk_broadway_display_supports_composite (GdkDisplay *display)
1043 {
1044   return FALSE;
1045 }
1046
1047 static GList *
1048 gdk_broadway_display_list_devices (GdkDisplay *display)
1049 {
1050   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1051
1052   return GDK_BROADWAY_DISPLAY (display)->input_devices;
1053 }
1054
1055 static gulong
1056 gdk_broadway_display_get_next_serial (GdkDisplay *display)
1057 {
1058   GdkBroadwayDisplay *broadway_display;
1059   broadway_display = GDK_BROADWAY_DISPLAY (display);
1060   if (broadway_display->output)
1061     return broadway_output_get_next_serial (broadway_display->output);
1062   return broadway_display->saved_serial;
1063 }
1064
1065
1066 static void
1067 gdk_broadway_display_event_data_copy (GdkDisplay    *display,
1068                                       const GdkEvent *src,
1069                                       GdkEvent       *dst)
1070 {
1071 }
1072
1073 static void
1074 gdk_broadway_display_event_data_free (GdkDisplay    *display,
1075                                       GdkEvent *event)
1076 {
1077 }
1078
1079 static void
1080 gdk_broadway_display_class_init (GdkBroadwayDisplayClass * class)
1081 {
1082   GObjectClass *object_class = G_OBJECT_CLASS (class);
1083   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
1084
1085   object_class->dispose = gdk_broadway_display_dispose;
1086   object_class->finalize = gdk_broadway_display_finalize;
1087
1088   display_class->window_type = GDK_TYPE_BROADWAY_WINDOW;
1089
1090   display_class->get_name = gdk_broadway_display_get_name;
1091   display_class->get_n_screens = gdk_broadway_display_get_n_screens;
1092   display_class->get_screen = gdk_broadway_display_get_screen;
1093   display_class->get_default_screen = gdk_broadway_display_get_default_screen;
1094   display_class->beep = gdk_broadway_display_beep;
1095   display_class->sync = gdk_broadway_display_sync;
1096   display_class->flush = gdk_broadway_display_flush;
1097   display_class->has_pending = gdk_broadway_display_has_pending;
1098   display_class->queue_events = _gdk_broadway_display_queue_events;
1099   display_class->get_default_group = gdk_broadway_display_get_default_group;
1100   display_class->supports_selection_notification = gdk_broadway_display_supports_selection_notification;
1101   display_class->request_selection_notification = gdk_broadway_display_request_selection_notification;
1102   display_class->supports_clipboard_persistence = gdk_broadway_display_supports_clipboard_persistence;
1103   display_class->store_clipboard = gdk_broadway_display_store_clipboard;
1104   display_class->supports_shapes = gdk_broadway_display_supports_shapes;
1105   display_class->supports_input_shapes = gdk_broadway_display_supports_input_shapes;
1106   display_class->supports_composite = gdk_broadway_display_supports_composite;
1107   display_class->list_devices = gdk_broadway_display_list_devices;
1108   display_class->get_cursor_for_type = _gdk_broadway_display_get_cursor_for_type;
1109   display_class->get_cursor_for_name = _gdk_broadway_display_get_cursor_for_name;
1110   display_class->get_cursor_for_pixbuf = _gdk_broadway_display_get_cursor_for_pixbuf;
1111   display_class->get_default_cursor_size = _gdk_broadway_display_get_default_cursor_size;
1112   display_class->get_maximal_cursor_size = _gdk_broadway_display_get_maximal_cursor_size;
1113   display_class->supports_cursor_alpha = _gdk_broadway_display_supports_cursor_alpha;
1114   display_class->supports_cursor_color = _gdk_broadway_display_supports_cursor_color;
1115
1116   display_class->before_process_all_updates = _gdk_broadway_display_before_process_all_updates;
1117   display_class->after_process_all_updates = _gdk_broadway_display_after_process_all_updates;
1118   display_class->get_next_serial = gdk_broadway_display_get_next_serial;
1119   display_class->notify_startup_complete = gdk_broadway_display_notify_startup_complete;
1120   display_class->event_data_copy = gdk_broadway_display_event_data_copy;
1121   display_class->event_data_free = gdk_broadway_display_event_data_free;
1122   display_class->create_window_impl = _gdk_broadway_display_create_window_impl;
1123   display_class->get_keymap = _gdk_broadway_display_get_keymap;
1124   display_class->get_selection_owner = _gdk_broadway_display_get_selection_owner;
1125   display_class->set_selection_owner = _gdk_broadway_display_set_selection_owner;
1126   display_class->send_selection_notify = _gdk_broadway_display_send_selection_notify;
1127   display_class->get_selection_property = _gdk_broadway_display_get_selection_property;
1128   display_class->convert_selection = _gdk_broadway_display_convert_selection;
1129   display_class->text_property_to_utf8_list = _gdk_broadway_display_text_property_to_utf8_list;
1130   display_class->utf8_to_string_target = _gdk_broadway_display_utf8_to_string_target;
1131 }
1132