--- a/libpurple/protocols/silc10/wb.c Tue Dec 06 08:23:45 2011 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,520 +0,0 @@
-/*
-
- wb.c
-
- Author: Pekka Riikonen <priikone@silcnet.org>
-
- Copyright (C) 2005 Pekka Riikonen
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
-*/
-
-#include "silcincludes.h"
-#include "silcclient.h"
-#include "silcpurple.h"
-#include "wb.h"
-
-/*
- SILC Whiteboard packet:
-
- 1 byte command
- 2 bytes width
- 2 bytes height
- 4 bytes brush color
- 2 bytes brush size
- n bytes data
-
- Data:
-
- 4 bytes x
- 4 bytes y
-
- Commands:
-
- 0x01 draw
- 0x02 clear
-
- MIME:
-
- MIME-Version: 1.0
- Content-Type: application/x-wb
- Content-Transfer-Encoding: binary
-
-*/
-
-#define SILCPURPLE_WB_MIME "MIME-Version: 1.0\r\nContent-Type: application/x-wb\r\nContent-Transfer-Encoding: binary\r\n\r\n"
-#define SILCPURPLE_WB_HEADER strlen(SILCPURPLE_WB_MIME) + 11
-
-#define SILCPURPLE_WB_WIDTH 500
-#define SILCPURPLE_WB_HEIGHT 400
-#define SILCPURPLE_WB_WIDTH_MAX 1024
-#define SILCPURPLE_WB_HEIGHT_MAX 1024
-
-/* Commands */
-typedef enum {
- SILCPURPLE_WB_DRAW = 0x01,
- SILCPURPLE_WB_CLEAR = 0x02
-} SilcPurpleWbCommand;
-
-/* Brush size */
-typedef enum {
- SILCPURPLE_WB_BRUSH_SMALL = 2,
- SILCPURPLE_WB_BRUSH_MEDIUM = 5,
- SILCPURPLE_WB_BRUSH_LARGE = 10
-} SilcPurpleWbBrushSize;
-
-/* Brush color (XXX Purple should provide default colors) */
-typedef enum {
- SILCPURPLE_WB_COLOR_BLACK = 0,
- SILCPURPLE_WB_COLOR_RED = 13369344,
- SILCPURPLE_WB_COLOR_GREEN = 52224,
- SILCPURPLE_WB_COLOR_BLUE = 204,
- SILCPURPLE_WB_COLOR_YELLOW = 15658496,
- SILCPURPLE_WB_COLOR_ORANGE = 16737792,
- SILCPURPLE_WB_COLOR_CYAN = 52428,
- SILCPURPLE_WB_COLOR_VIOLET = 5381277,
- SILCPURPLE_WB_COLOR_PURPLE = 13369548,
- SILCPURPLE_WB_COLOR_TAN = 12093547,
- SILCPURPLE_WB_COLOR_BROWN = 5256485,
- SILCPURPLE_WB_COLOR_GREY = 11184810,
- SILCPURPLE_WB_COLOR_WHITE = 16777215
-} SilcPurpleWbColor;
-
-typedef struct {
- int type; /* 0 = buddy, 1 = channel */
- union {
- SilcClientEntry client;
- SilcChannelEntry channel;
- } u;
- int width;
- int height;
- int brush_size;
- int brush_color;
-} *SilcPurpleWb;
-
-/* Initialize whiteboard */
-
-PurpleWhiteboard *silcpurple_wb_init(SilcPurple sg, SilcClientEntry client_entry)
-{
- SilcClientConnection conn;
- PurpleWhiteboard *wb;
- SilcPurpleWb wbs;
-
- conn = sg->conn;
- wb = purple_whiteboard_get_session(sg->account, client_entry->nickname);
- if (!wb)
- wb = purple_whiteboard_create(sg->account, client_entry->nickname, 0);
- if (!wb)
- return NULL;
-
- if (!wb->proto_data) {
- wbs = silc_calloc(1, sizeof(*wbs));
- if (!wbs)
- return NULL;
- wbs->type = 0;
- wbs->u.client = client_entry;
- wbs->width = SILCPURPLE_WB_WIDTH;
- wbs->height = SILCPURPLE_WB_HEIGHT;
- wbs->brush_size = SILCPURPLE_WB_BRUSH_SMALL;
- wbs->brush_color = SILCPURPLE_WB_COLOR_BLACK;
- wb->proto_data = wbs;
-
- /* Start the whiteboard */
- purple_whiteboard_start(wb);
- purple_whiteboard_clear(wb);
- }
-
- return wb;
-}
-
-PurpleWhiteboard *silcpurple_wb_init_ch(SilcPurple sg, SilcChannelEntry channel)
-{
- PurpleWhiteboard *wb;
- SilcPurpleWb wbs;
-
- wb = purple_whiteboard_get_session(sg->account, channel->channel_name);
- if (!wb)
- wb = purple_whiteboard_create(sg->account, channel->channel_name, 0);
- if (!wb)
- return NULL;
-
- if (!wb->proto_data) {
- wbs = silc_calloc(1, sizeof(*wbs));
- if (!wbs)
- return NULL;
- wbs->type = 1;
- wbs->u.channel = channel;
- wbs->width = SILCPURPLE_WB_WIDTH;
- wbs->height = SILCPURPLE_WB_HEIGHT;
- wbs->brush_size = SILCPURPLE_WB_BRUSH_SMALL;
- wbs->brush_color = SILCPURPLE_WB_COLOR_BLACK;
- wb->proto_data = wbs;
-
- /* Start the whiteboard */
- purple_whiteboard_start(wb);
- purple_whiteboard_clear(wb);
- }
-
- return wb;
-}
-
-static void
-silcpurple_wb_parse(SilcPurpleWb wbs, PurpleWhiteboard *wb,
- unsigned char *message, SilcUInt32 message_len)
-{
- SilcUInt8 command;
- SilcUInt16 width, height, brush_size;
- SilcUInt32 brush_color, x, y, dx, dy;
- SilcBufferStruct buf;
- int ret;
-
- /* Parse the packet */
- silc_buffer_set(&buf, message, message_len);
- ret = silc_buffer_unformat(&buf,
- SILC_STR_UI_CHAR(&command),
- SILC_STR_UI_SHORT(&width),
- SILC_STR_UI_SHORT(&height),
- SILC_STR_UI_INT(&brush_color),
- SILC_STR_UI_SHORT(&brush_size),
- SILC_STR_END);
- if (ret < 0)
- return;
- silc_buffer_pull(&buf, ret);
-
- /* Update whiteboard if its dimensions changed */
- if (width != wbs->width || height != wbs->height)
- silcpurple_wb_set_dimensions(wb, height, width);
-
- if (command == SILCPURPLE_WB_DRAW) {
- /* Parse data and draw it */
- ret = silc_buffer_unformat(&buf,
- SILC_STR_UI_INT(&dx),
- SILC_STR_UI_INT(&dy),
- SILC_STR_END);
- if (ret < 0)
- return;
- silc_buffer_pull(&buf, 8);
- x = dx;
- y = dy;
- while (buf.len > 0) {
- ret = silc_buffer_unformat(&buf,
- SILC_STR_UI_INT(&dx),
- SILC_STR_UI_INT(&dy),
- SILC_STR_END);
- if (ret < 0)
- return;
- silc_buffer_pull(&buf, 8);
-
- purple_whiteboard_draw_line(wb, x, y, x + dx, y + dy,
- brush_color, brush_size);
- x += dx;
- y += dy;
- }
- }
-
- if (command == SILCPURPLE_WB_CLEAR)
- purple_whiteboard_clear(wb);
-}
-
-typedef struct {
- unsigned char *message;
- SilcUInt32 message_len;
- SilcPurple sg;
- SilcClientEntry sender;
- SilcChannelEntry channel;
-} *SilcPurpleWbRequest;
-
-static void
-silcpurple_wb_request_cb(SilcPurpleWbRequest req, gint id)
-{
- PurpleWhiteboard *wb;
-
- if (id != 1)
- goto out;
-
- if (!req->channel)
- wb = silcpurple_wb_init(req->sg, req->sender);
- else
- wb = silcpurple_wb_init_ch(req->sg, req->channel);
-
- silcpurple_wb_parse(wb->proto_data, wb, req->message, req->message_len);
-
- out:
- silc_free(req->message);
- silc_free(req);
-}
-
-static void
-silcpurple_wb_request(SilcClient client, const unsigned char *message,
- SilcUInt32 message_len, SilcClientEntry sender,
- SilcChannelEntry channel)
-{
- char tmp[128];
- SilcPurpleWbRequest req;
- PurpleConnection *gc;
- SilcPurple sg;
-
- gc = client->application;
- sg = gc->proto_data;
-
- /* Open whiteboard automatically if requested */
- if (purple_account_get_bool(sg->account, "open-wb", FALSE)) {
- PurpleWhiteboard *wb;
-
- if (!channel)
- wb = silcpurple_wb_init(sg, sender);
- else
- wb = silcpurple_wb_init_ch(sg, channel);
-
- silcpurple_wb_parse(wb->proto_data, wb, (unsigned char *)message,
- message_len);
- return;
- }
-
- /* Close any previous unaccepted requests */
- purple_request_close_with_handle(sender);
-
- if (!channel) {
- g_snprintf(tmp, sizeof(tmp),
- _("%s sent message to whiteboard. Would you like "
- "to open the whiteboard?"), sender->nickname);
- } else {
- g_snprintf(tmp, sizeof(tmp),
- _("%s sent message to whiteboard on %s channel. "
- "Would you like to open the whiteboard?"),
- sender->nickname, channel->channel_name);
- }
-
- req = silc_calloc(1, sizeof(*req));
- if (!req)
- return;
- req->message = silc_memdup(message, message_len);
- req->message_len = message_len;
- req->sender = sender;
- req->channel = channel;
- req->sg = sg;
-
- purple_request_action(sender, _("Whiteboard"), tmp, NULL, 1,
- sg->account, sender->nickname, NULL, req, 2,
- _("Yes"), G_CALLBACK(silcpurple_wb_request_cb),
- _("No"), G_CALLBACK(silcpurple_wb_request_cb));
-}
-
-/* Process incoming whiteboard message */
-
-void silcpurple_wb_receive(SilcClient client, SilcClientConnection conn,
- SilcClientEntry sender, SilcMessagePayload payload,
- SilcMessageFlags flags, const unsigned char *message,
- SilcUInt32 message_len)
-{
- SilcPurple sg;
- PurpleConnection *gc;
- PurpleWhiteboard *wb;
- SilcPurpleWb wbs;
-
- gc = client->application;
- sg = gc->proto_data;
-
- wb = purple_whiteboard_get_session(sg->account, sender->nickname);
- if (!wb) {
- /* Ask user if they want to open the whiteboard */
- silcpurple_wb_request(client, message, message_len,
- sender, NULL);
- return;
- }
-
- wbs = wb->proto_data;
- silcpurple_wb_parse(wbs, wb, (unsigned char *)message, message_len);
-}
-
-/* Process incoming whiteboard message on channel */
-
-void silcpurple_wb_receive_ch(SilcClient client, SilcClientConnection conn,
- SilcClientEntry sender, SilcChannelEntry channel,
- SilcMessagePayload payload,
- SilcMessageFlags flags,
- const unsigned char *message,
- SilcUInt32 message_len)
-{
- SilcPurple sg;
- PurpleConnection *gc;
- PurpleWhiteboard *wb;
- SilcPurpleWb wbs;
-
- gc = client->application;
- sg = gc->proto_data;
-
- wb = purple_whiteboard_get_session(sg->account, channel->channel_name);
- if (!wb) {
- /* Ask user if they want to open the whiteboard */
- silcpurple_wb_request(client, message, message_len,
- sender, channel);
- return;
- }
-
- wbs = wb->proto_data;
- silcpurple_wb_parse(wbs, wb, (unsigned char *)message, message_len);
-}
-
-/* Send whiteboard message */
-
-void silcpurple_wb_send(PurpleWhiteboard *wb, GList *draw_list)
-{
- SilcPurpleWb wbs = wb->proto_data;
- SilcBuffer packet;
- GList *list;
- int len;
- PurpleConnection *gc;
- SilcPurple sg;
-
- g_return_if_fail(draw_list);
- gc = purple_account_get_connection(wb->account);
- g_return_if_fail(gc);
- sg = gc->proto_data;
- g_return_if_fail(sg);
-
- len = SILCPURPLE_WB_HEADER;
- for (list = draw_list; list; list = list->next)
- len += 4;
-
- packet = silc_buffer_alloc_size(len);
- if (!packet)
- return;
-
- /* Assmeble packet */
- silc_buffer_format(packet,
- SILC_STR_UI32_STRING(SILCPURPLE_WB_MIME),
- SILC_STR_UI_CHAR(SILCPURPLE_WB_DRAW),
- SILC_STR_UI_SHORT(wbs->width),
- SILC_STR_UI_SHORT(wbs->height),
- SILC_STR_UI_INT(wbs->brush_color),
- SILC_STR_UI_SHORT(wbs->brush_size),
- SILC_STR_END);
- silc_buffer_pull(packet, SILCPURPLE_WB_HEADER);
- for (list = draw_list; list; list = list->next) {
- silc_buffer_format(packet,
- SILC_STR_UI_INT(GPOINTER_TO_INT(list->data)),
- SILC_STR_END);
- silc_buffer_pull(packet, 4);
- }
-
- /* Send the message */
- if (wbs->type == 0) {
- /* Private message */
- silc_client_send_private_message(sg->client, sg->conn,
- wbs->u.client,
- SILC_MESSAGE_FLAG_DATA,
- packet->head, len, TRUE);
- } else if (wbs->type == 1) {
- /* Channel message. Channel private keys are not supported. */
- silc_client_send_channel_message(sg->client, sg->conn,
- wbs->u.channel, NULL,
- SILC_MESSAGE_FLAG_DATA,
- packet->head, len, TRUE);
- }
-
- silc_buffer_free(packet);
-}
-
-/* Purple Whiteboard operations */
-
-void silcpurple_wb_start(PurpleWhiteboard *wb)
-{
- /* Nothing here. Everything is in initialization */
-}
-
-void silcpurple_wb_end(PurpleWhiteboard *wb)
-{
- silc_free(wb->proto_data);
- wb->proto_data = NULL;
-}
-
-void silcpurple_wb_get_dimensions(const PurpleWhiteboard *wb, int *width, int *height)
-{
- SilcPurpleWb wbs = wb->proto_data;
- *width = wbs->width;
- *height = wbs->height;
-}
-
-void silcpurple_wb_set_dimensions(PurpleWhiteboard *wb, int width, int height)
-{
- SilcPurpleWb wbs = wb->proto_data;
- wbs->width = width > SILCPURPLE_WB_WIDTH_MAX ? SILCPURPLE_WB_WIDTH_MAX :
- width;
- wbs->height = height > SILCPURPLE_WB_HEIGHT_MAX ? SILCPURPLE_WB_HEIGHT_MAX :
- height;
-
- /* Update whiteboard */
- purple_whiteboard_set_dimensions(wb, wbs->width, wbs->height);
-}
-
-void silcpurple_wb_get_brush(const PurpleWhiteboard *wb, int *size, int *color)
-{
- SilcPurpleWb wbs = wb->proto_data;
- *size = wbs->brush_size;
- *color = wbs->brush_color;
-}
-
-void silcpurple_wb_set_brush(PurpleWhiteboard *wb, int size, int color)
-{
- SilcPurpleWb wbs = wb->proto_data;
- wbs->brush_size = size;
- wbs->brush_color = color;
-
- /* Update whiteboard */
- purple_whiteboard_set_brush(wb, size, color);
-}
-
-void silcpurple_wb_clear(PurpleWhiteboard *wb)
-{
- SilcPurpleWb wbs = wb->proto_data;
- SilcBuffer packet;
- int len;
- PurpleConnection *gc;
- SilcPurple sg;
-
- gc = purple_account_get_connection(wb->account);
- g_return_if_fail(gc);
- sg = gc->proto_data;
- g_return_if_fail(sg);
-
- len = SILCPURPLE_WB_HEADER;
- packet = silc_buffer_alloc_size(len);
- if (!packet)
- return;
-
- /* Assmeble packet */
- silc_buffer_format(packet,
- SILC_STR_UI32_STRING(SILCPURPLE_WB_MIME),
- SILC_STR_UI_CHAR(SILCPURPLE_WB_CLEAR),
- SILC_STR_UI_SHORT(wbs->width),
- SILC_STR_UI_SHORT(wbs->height),
- SILC_STR_UI_INT(wbs->brush_color),
- SILC_STR_UI_SHORT(wbs->brush_size),
- SILC_STR_END);
-
- /* Send the message */
- if (wbs->type == 0) {
- /* Private message */
- silc_client_send_private_message(sg->client, sg->conn,
- wbs->u.client,
- SILC_MESSAGE_FLAG_DATA,
- packet->head, len, TRUE);
- } else if (wbs->type == 1) {
- /* Channel message */
- silc_client_send_channel_message(sg->client, sg->conn,
- wbs->u.channel, NULL,
- SILC_MESSAGE_FLAG_DATA,
- packet->head, len, TRUE);
- }
-
- silc_buffer_free(packet);
-}