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