Switching to handler functions rather than state values.
This commit is contained in:
parent
974aa93e90
commit
e3d1a3f023
@ -40,7 +40,7 @@ ACLOCAL_AMFLAGS = -I m4
|
|||||||
|
|
||||||
lib_LTLIBRARIES = libguac-client-ssh.la
|
lib_LTLIBRARIES = libguac-client-ssh.la
|
||||||
|
|
||||||
libguac_client_ssh_la_SOURCES = src/ssh_client.c src/ssh_handlers.c src/ssh_terminal.c
|
libguac_client_ssh_la_SOURCES = src/ssh_client.c src/ssh_handlers.c src/ssh_terminal.c src/ssh_terminal_handlers.c
|
||||||
|
|
||||||
libguac_client_ssh_la_CFLAGS = -Werror -Wall -pedantic -Iinclude @PANGO_CFLAGS@ @PANGOCAIRO_CFLAGS@
|
libguac_client_ssh_la_CFLAGS = -Werror -Wall -pedantic -Iinclude @PANGO_CFLAGS@ @PANGOCAIRO_CFLAGS@
|
||||||
libguac_client_ssh_la_LIBADD = @PANGO_LIBS@ @PANGOCAIRO_LIBS@
|
libguac_client_ssh_la_LIBADD = @PANGO_LIBS@ @PANGOCAIRO_LIBS@
|
||||||
|
@ -62,6 +62,9 @@ typedef struct ssh_guac_client_data {
|
|||||||
|
|
||||||
ssh_guac_terminal* term;
|
ssh_guac_terminal* term;
|
||||||
|
|
||||||
|
char password[1024];
|
||||||
|
int password_length;
|
||||||
|
|
||||||
} ssh_guac_client_data;
|
} ssh_guac_client_data;
|
||||||
|
|
||||||
int ssh_guac_client_auth(guac_client* client, const char* password);
|
int ssh_guac_client_auth(guac_client* client, const char* password);
|
||||||
|
@ -49,14 +49,11 @@
|
|||||||
#include <guacamole/protocol.h>
|
#include <guacamole/protocol.h>
|
||||||
#include <guacamole/client.h>
|
#include <guacamole/client.h>
|
||||||
|
|
||||||
#define SSH_TERM_STATE_NULL 0
|
typedef struct ssh_guac_terminal ssh_guac_terminal;
|
||||||
#define SSH_TERM_STATE_ECHO 1
|
|
||||||
#define SSH_TERM_STATE_ESC 2
|
|
||||||
#define SSH_TERM_STATE_CSI 3
|
|
||||||
#define SSH_TERM_STATE_OSC 4
|
|
||||||
#define SSH_TERM_STATE_CHARSET 5
|
|
||||||
|
|
||||||
typedef struct ssh_guac_terminal {
|
typedef int ssh_guac_terminal_char_handler(ssh_guac_terminal* term, char c);
|
||||||
|
|
||||||
|
struct ssh_guac_terminal {
|
||||||
|
|
||||||
PangoFontDescription* font_desc;
|
PangoFontDescription* font_desc;
|
||||||
|
|
||||||
@ -68,7 +65,7 @@ typedef struct ssh_guac_terminal {
|
|||||||
|
|
||||||
int term_width;
|
int term_width;
|
||||||
int term_height;
|
int term_height;
|
||||||
int term_state;
|
ssh_guac_terminal_char_handler* char_handler;
|
||||||
|
|
||||||
int term_seq_argc;
|
int term_seq_argc;
|
||||||
int term_seq_argv[16];
|
int term_seq_argv[16];
|
||||||
@ -78,12 +75,13 @@ typedef struct ssh_guac_terminal {
|
|||||||
int cursor_row;
|
int cursor_row;
|
||||||
int cursor_col;
|
int cursor_col;
|
||||||
|
|
||||||
} ssh_guac_terminal;
|
};
|
||||||
|
|
||||||
ssh_guac_terminal* ssh_guac_terminal_create(guac_client* client);
|
ssh_guac_terminal* ssh_guac_terminal_create(guac_client* client);
|
||||||
void ssh_guac_terminal_free(ssh_guac_terminal* term);
|
void ssh_guac_terminal_free(ssh_guac_terminal* term);
|
||||||
|
|
||||||
int ssh_guac_terminal_write(ssh_guac_terminal* term, const char* c, int size);
|
int ssh_guac_terminal_write(ssh_guac_terminal* term, const char* c, int size);
|
||||||
|
int ssh_guac_terminal_send_glyph(ssh_guac_terminal* term, int row, int col, char c);
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
61
protocols/ssh/include/ssh_terminal_handlers.h
Normal file
61
protocols/ssh/include/ssh_terminal_handlers.h
Normal file
@ -0,0 +1,61 @@
|
|||||||
|
|
||||||
|
/* ***** BEGIN LICENSE BLOCK *****
|
||||||
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
||||||
|
*
|
||||||
|
* The contents of this file are subject to the Mozilla Public License Version
|
||||||
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
||||||
|
* the License. You may obtain a copy of the License at
|
||||||
|
* http://www.mozilla.org/MPL/
|
||||||
|
*
|
||||||
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
||||||
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
||||||
|
* for the specific language governing rights and limitations under the
|
||||||
|
* License.
|
||||||
|
*
|
||||||
|
* The Original Code is libguac-client-ssh.
|
||||||
|
*
|
||||||
|
* The Initial Developer of the Original Code is
|
||||||
|
* Michael Jumper.
|
||||||
|
* Portions created by the Initial Developer are Copyright (C) 2011
|
||||||
|
* the Initial Developer. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* Contributor(s):
|
||||||
|
*
|
||||||
|
* Alternatively, the contents of this file may be used under the terms of
|
||||||
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
||||||
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
||||||
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
||||||
|
* of those above. If you wish to allow use of your version of this file only
|
||||||
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
||||||
|
* use your version of this file under the terms of the MPL, indicate your
|
||||||
|
* decision by deleting the provisions above and replace them with the notice
|
||||||
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
||||||
|
* the provisions above, a recipient may use your version of this file under
|
||||||
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
||||||
|
*
|
||||||
|
* ***** END LICENSE BLOCK ***** */
|
||||||
|
|
||||||
|
#ifndef _SSH_GUAC_TERMINAL_HANDLERS
|
||||||
|
#define _SSH_GUAC_TERMINAL_HANDLERS
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include <cairo/cairo.h>
|
||||||
|
#include <pango/pangocairo.h>
|
||||||
|
|
||||||
|
#include <guacamole/log.h>
|
||||||
|
#include <guacamole/guacio.h>
|
||||||
|
#include <guacamole/protocol.h>
|
||||||
|
#include <guacamole/client.h>
|
||||||
|
|
||||||
|
#include "ssh_terminal.h"
|
||||||
|
|
||||||
|
int ssh_guac_terminal_echo(ssh_guac_terminal* term, char c);
|
||||||
|
int ssh_guac_terminal_escape(ssh_guac_terminal* term, char c);
|
||||||
|
int ssh_guac_terminal_charset(ssh_guac_terminal* term, char c);
|
||||||
|
int ssh_guac_terminal_csi(ssh_guac_terminal* term, char c);
|
||||||
|
int ssh_guac_terminal_osc(ssh_guac_terminal* term, char c);
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
@ -64,10 +64,49 @@ const char* GUAC_CLIENT_ARGS[] = {
|
|||||||
NULL
|
NULL
|
||||||
};
|
};
|
||||||
|
|
||||||
int ssh_guac_client_handle_messages(guac_client* client);
|
int ssh_guac_client_password_key_handler(guac_client* client, int keysym, int pressed) {
|
||||||
int ssh_guac_client_key_handler(guac_client* client, int keysym, int pressed);
|
|
||||||
int ssh_guac_client_send_glyph(guac_client* client, int row, int col, char c);
|
ssh_guac_client_data* client_data = (ssh_guac_client_data*) client->data;
|
||||||
int ssh_guac_client_write(guac_client* client, const char* c, int size);
|
|
||||||
|
/* If key pressed */
|
||||||
|
if (pressed) {
|
||||||
|
|
||||||
|
/* If simple ASCII key */
|
||||||
|
if (keysym >= 0x00 && keysym <= 0xFF) {
|
||||||
|
/* Add to password */
|
||||||
|
client_data->password[client_data->password_length++] = keysym;
|
||||||
|
ssh_guac_terminal_write(client_data->term, "*", 1);
|
||||||
|
guac_flush(client->io);
|
||||||
|
}
|
||||||
|
else if (keysym == 0xFF08) {
|
||||||
|
|
||||||
|
if (client_data->password_length > 0) {
|
||||||
|
client_data->password_length--;
|
||||||
|
|
||||||
|
/* Backspace */
|
||||||
|
ssh_guac_terminal_write(client_data->term, "\x08\x1B[K", 4);
|
||||||
|
guac_flush(client->io);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
else if (keysym == 0xFF0D) {
|
||||||
|
|
||||||
|
/* Finish password */
|
||||||
|
client_data->password[client_data->password_length] = '\0';
|
||||||
|
|
||||||
|
/* Clear screen */
|
||||||
|
ssh_guac_terminal_write(client_data->term, "\x1B[2J\x1B[1;1H", 10);
|
||||||
|
guac_flush(client->io);
|
||||||
|
|
||||||
|
return ssh_guac_client_auth(client, client_data->password);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
int guac_client_init(guac_client* client, int argc, char** argv) {
|
int guac_client_init(guac_client* client, int argc, char** argv) {
|
||||||
|
|
||||||
@ -113,6 +152,13 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
|
|||||||
|
|
||||||
/* Otherwise, prompt for password */
|
/* Otherwise, prompt for password */
|
||||||
else {
|
else {
|
||||||
|
|
||||||
|
client_data->password_length = 0;
|
||||||
|
ssh_guac_terminal_write(client_data->term, "Password: ", 10);
|
||||||
|
guac_flush(client->io);
|
||||||
|
|
||||||
|
client->key_handler = ssh_guac_client_password_key_handler;
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Success */
|
/* Success */
|
||||||
@ -181,3 +227,4 @@ int ssh_guac_client_auth(guac_client* client, const char* password) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
@ -47,6 +47,7 @@
|
|||||||
#include <guacamole/client.h>
|
#include <guacamole/client.h>
|
||||||
|
|
||||||
#include "ssh_terminal.h"
|
#include "ssh_terminal.h"
|
||||||
|
#include "ssh_terminal_handlers.h"
|
||||||
|
|
||||||
ssh_guac_terminal* ssh_guac_terminal_create(guac_client* client) {
|
ssh_guac_terminal* ssh_guac_terminal_create(guac_client* client) {
|
||||||
|
|
||||||
@ -63,7 +64,7 @@ ssh_guac_terminal* ssh_guac_terminal_create(guac_client* client) {
|
|||||||
|
|
||||||
term->term_width = 160;
|
term->term_width = 160;
|
||||||
term->term_height = 50;
|
term->term_height = 50;
|
||||||
term->term_state = SSH_TERM_STATE_ECHO;
|
term->char_handler = ssh_guac_terminal_echo;
|
||||||
|
|
||||||
/* Get font */
|
/* Get font */
|
||||||
term->font_desc = pango_font_description_new();
|
term->font_desc = pango_font_description_new();
|
||||||
@ -148,7 +149,7 @@ guac_layer* __ssh_guac_terminal_get_glyph(ssh_guac_terminal* term, char c) {
|
|||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
int __ssh_guac_terminal_send_glyph(ssh_guac_terminal* term, int row, int col, char c) {
|
int ssh_guac_terminal_send_glyph(ssh_guac_terminal* term, int row, int col, char c) {
|
||||||
|
|
||||||
GUACIO* io = term->client->io;
|
GUACIO* io = term->client->io;
|
||||||
guac_layer* glyph = __ssh_guac_terminal_get_glyph(term, c);
|
guac_layer* glyph = __ssh_guac_terminal_get_glyph(term, c);
|
||||||
@ -163,295 +164,8 @@ int __ssh_guac_terminal_send_glyph(ssh_guac_terminal* term, int row, int col, ch
|
|||||||
|
|
||||||
int ssh_guac_terminal_write(ssh_guac_terminal* term, const char* c, int size) {
|
int ssh_guac_terminal_write(ssh_guac_terminal* term, const char* c, int size) {
|
||||||
|
|
||||||
GUACIO* io = term->client->io;
|
|
||||||
|
|
||||||
while (size > 0) {
|
while (size > 0) {
|
||||||
|
term->char_handler(term, *(c++));
|
||||||
switch (term->term_state) {
|
|
||||||
|
|
||||||
case SSH_TERM_STATE_NULL:
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SSH_TERM_STATE_ECHO:
|
|
||||||
|
|
||||||
/* Wrap if necessary */
|
|
||||||
if (term->cursor_col >= term->term_width) {
|
|
||||||
term->cursor_col = 0;
|
|
||||||
term->cursor_row++;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Scroll up if necessary */
|
|
||||||
if (term->cursor_row >= term->term_height) {
|
|
||||||
term->cursor_row = term->term_height - 1;
|
|
||||||
|
|
||||||
/* Copy screen up by one row */
|
|
||||||
guac_send_copy(io,
|
|
||||||
GUAC_DEFAULT_LAYER, 0, term->char_height,
|
|
||||||
term->char_width * term->term_width,
|
|
||||||
term->char_height * (term->term_height - 1),
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER, 0, 0);
|
|
||||||
|
|
||||||
/* Fill bottom row with background */
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
0, term->char_height * (term->term_height - 1),
|
|
||||||
term->char_width * term->term_width,
|
|
||||||
term->char_height * term->term_height,
|
|
||||||
0, 0, 0, 255);
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
switch (*c) {
|
|
||||||
|
|
||||||
/* Bell */
|
|
||||||
case 0x07:
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* Backspace */
|
|
||||||
case 0x08:
|
|
||||||
if (term->cursor_col >= 1)
|
|
||||||
term->cursor_col--;
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* Carriage return */
|
|
||||||
case '\r':
|
|
||||||
term->cursor_col = 0;
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* Line feed */
|
|
||||||
case '\n':
|
|
||||||
term->cursor_row++;
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* ESC */
|
|
||||||
case 0x1B:
|
|
||||||
term->term_state = SSH_TERM_STATE_ESC;
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* Displayable chars */
|
|
||||||
default:
|
|
||||||
__ssh_guac_terminal_send_glyph(term,
|
|
||||||
term->cursor_row,
|
|
||||||
term->cursor_col,
|
|
||||||
*c);
|
|
||||||
|
|
||||||
/* Advance cursor */
|
|
||||||
term->cursor_col++;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* End of SSH_TERM_STATE_ECHO */
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SSH_TERM_STATE_CHARSET:
|
|
||||||
term->term_state = SSH_TERM_STATE_ECHO;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SSH_TERM_STATE_ESC:
|
|
||||||
|
|
||||||
switch (*c) {
|
|
||||||
|
|
||||||
case '(':
|
|
||||||
term->term_state = SSH_TERM_STATE_CHARSET;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case ']':
|
|
||||||
term->term_state = SSH_TERM_STATE_OSC;
|
|
||||||
term->term_seq_argc = 0;
|
|
||||||
term->term_seq_argv_buffer_current = 0;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case '[':
|
|
||||||
term->term_state = SSH_TERM_STATE_CSI;
|
|
||||||
term->term_seq_argc = 0;
|
|
||||||
term->term_seq_argv_buffer_current = 0;
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
guac_log_info("Unhandled ESC sequence: %c", *c);
|
|
||||||
term->term_state = SSH_TERM_STATE_ECHO;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* End of SSH_TERM_STATE_ESC */
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SSH_TERM_STATE_OSC:
|
|
||||||
|
|
||||||
/* TODO: Implement OSC */
|
|
||||||
if (*c == 0x9C || *c == 0x5C || *c == 0x07) /* ECMA-48 ST (String Terminator */
|
|
||||||
term->term_state = SSH_TERM_STATE_ECHO;
|
|
||||||
|
|
||||||
/* End of SSH_TERM_STATE_OSC */
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SSH_TERM_STATE_CSI:
|
|
||||||
|
|
||||||
/* FIXME: "The sequence of parameters may be preceded by a single question mark. */
|
|
||||||
if (*c == '?')
|
|
||||||
break; /* Ignore question marks for now... */
|
|
||||||
|
|
||||||
/* Digits get concatenated into argv */
|
|
||||||
if (*c >= '0' && *c <= '9') {
|
|
||||||
|
|
||||||
/* Concatenate digit if there is space in buffer */
|
|
||||||
if (term->term_seq_argv_buffer_current <
|
|
||||||
sizeof(term->term_seq_argv_buffer)) {
|
|
||||||
|
|
||||||
term->term_seq_argv_buffer[
|
|
||||||
term->term_seq_argv_buffer_current++
|
|
||||||
] = *c;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Any non-digit stops the parameter, and possibly the sequence */
|
|
||||||
else {
|
|
||||||
|
|
||||||
/* At most 16 parameters */
|
|
||||||
if (term->term_seq_argc < 16) {
|
|
||||||
/* Finish parameter */
|
|
||||||
term->term_seq_argv_buffer[term->term_seq_argv_buffer_current] = 0;
|
|
||||||
term->term_seq_argv[term->term_seq_argc++] =
|
|
||||||
atoi(term->term_seq_argv_buffer);
|
|
||||||
|
|
||||||
/* Prepare for next parameter */
|
|
||||||
term->term_seq_argv_buffer_current = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Handle CSI functions */
|
|
||||||
switch (*c) {
|
|
||||||
|
|
||||||
/* H: Move cursor */
|
|
||||||
case 'H':
|
|
||||||
term->cursor_row = term->term_seq_argv[0] - 1;
|
|
||||||
term->cursor_col = term->term_seq_argv[1] - 1;
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* J: Erase display */
|
|
||||||
case 'J':
|
|
||||||
|
|
||||||
/* Erase from cursor to end of display */
|
|
||||||
if (term->term_seq_argv[0] == 0) {
|
|
||||||
|
|
||||||
/* Until end of line */
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
term->cursor_col * term->char_width,
|
|
||||||
term->cursor_row * term->char_height,
|
|
||||||
(term->term_width - term->cursor_col) * term->char_width,
|
|
||||||
term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
|
|
||||||
/* Until end of display */
|
|
||||||
if (term->cursor_row < term->term_height - 1) {
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
0,
|
|
||||||
(term->cursor_row+1) * term->char_height,
|
|
||||||
term->term_width * term->char_width,
|
|
||||||
term->term_height * term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Erase from start to cursor */
|
|
||||||
else if (term->term_seq_argv[0] == 1) {
|
|
||||||
|
|
||||||
/* Until start of line */
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
0,
|
|
||||||
term->cursor_row * term->char_height,
|
|
||||||
term->cursor_col * term->char_width,
|
|
||||||
term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
|
|
||||||
/* From start */
|
|
||||||
if (term->cursor_row >= 1) {
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
0,
|
|
||||||
0,
|
|
||||||
term->term_width * term->char_width,
|
|
||||||
(term->cursor_row-1) * term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Entire screen */
|
|
||||||
else if (term->term_seq_argv[0] == 2) {
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
0,
|
|
||||||
0,
|
|
||||||
term->term_width * term->char_width,
|
|
||||||
term->term_height * term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
}
|
|
||||||
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* K: Erase line */
|
|
||||||
case 'K':
|
|
||||||
|
|
||||||
/* Erase from cursor to end of line */
|
|
||||||
if (term->term_seq_argv[0] == 0) {
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
term->cursor_col * term->char_width,
|
|
||||||
term->cursor_row * term->char_height,
|
|
||||||
(term->term_width - term->cursor_col) * term->char_width,
|
|
||||||
term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Erase from start to cursor */
|
|
||||||
else if (term->term_seq_argv[0] == 1) {
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
0,
|
|
||||||
term->cursor_row * term->char_height,
|
|
||||||
term->cursor_col * term->char_width,
|
|
||||||
term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Erase line */
|
|
||||||
else if (term->term_seq_argv[0] == 2) {
|
|
||||||
guac_send_rect(io,
|
|
||||||
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
|
||||||
0,
|
|
||||||
term->cursor_row * term->char_height,
|
|
||||||
term->term_width * term->char_width,
|
|
||||||
term->char_height,
|
|
||||||
0, 0, 0, 255); /* Background color */
|
|
||||||
}
|
|
||||||
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* Warn of unhandled codes */
|
|
||||||
default:
|
|
||||||
if (*c != ';')
|
|
||||||
guac_log_info("Unhandled CSI sequence: %c", *c);
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* If not a semicolon, end of CSI sequence */
|
|
||||||
if (*c != ';')
|
|
||||||
term->term_state = SSH_TERM_STATE_ECHO;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* End of SSH_TERM_STATE_CSI */
|
|
||||||
break;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
c++;
|
|
||||||
size--;
|
size--;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
332
protocols/ssh/src/ssh_terminal_handlers.c
Normal file
332
protocols/ssh/src/ssh_terminal_handlers.c
Normal file
@ -0,0 +1,332 @@
|
|||||||
|
|
||||||
|
/* ***** BEGIN LICENSE BLOCK *****
|
||||||
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
||||||
|
*
|
||||||
|
* The contents of this file are subject to the Mozilla Public License Version
|
||||||
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
||||||
|
* the License. You may obtain a copy of the License at
|
||||||
|
* http://www.mozilla.org/MPL/
|
||||||
|
*
|
||||||
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
||||||
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
||||||
|
* for the specific language governing rights and limitations under the
|
||||||
|
* License.
|
||||||
|
*
|
||||||
|
* The Original Code is libguac-client-ssh.
|
||||||
|
*
|
||||||
|
* The Initial Developer of the Original Code is
|
||||||
|
* Michael Jumper.
|
||||||
|
* Portions created by the Initial Developer are Copyright (C) 2011
|
||||||
|
* the Initial Developer. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* Contributor(s):
|
||||||
|
*
|
||||||
|
* Alternatively, the contents of this file may be used under the terms of
|
||||||
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
||||||
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
||||||
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
||||||
|
* of those above. If you wish to allow use of your version of this file only
|
||||||
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
||||||
|
* use your version of this file under the terms of the MPL, indicate your
|
||||||
|
* decision by deleting the provisions above and replace them with the notice
|
||||||
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
||||||
|
* the provisions above, a recipient may use your version of this file under
|
||||||
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
||||||
|
*
|
||||||
|
* ***** END LICENSE BLOCK ***** */
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include <cairo/cairo.h>
|
||||||
|
#include <pango/pangocairo.h>
|
||||||
|
|
||||||
|
#include <guacamole/log.h>
|
||||||
|
#include <guacamole/guacio.h>
|
||||||
|
#include <guacamole/protocol.h>
|
||||||
|
#include <guacamole/client.h>
|
||||||
|
|
||||||
|
#include "ssh_terminal.h"
|
||||||
|
#include "ssh_terminal_handlers.h"
|
||||||
|
|
||||||
|
int ssh_guac_terminal_echo(ssh_guac_terminal* term, char c) {
|
||||||
|
|
||||||
|
GUACIO* io = term->client->io;
|
||||||
|
|
||||||
|
/* Wrap if necessary */
|
||||||
|
if (term->cursor_col >= term->term_width) {
|
||||||
|
term->cursor_col = 0;
|
||||||
|
term->cursor_row++;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Scroll up if necessary */
|
||||||
|
if (term->cursor_row >= term->term_height) {
|
||||||
|
term->cursor_row = term->term_height - 1;
|
||||||
|
|
||||||
|
/* Copy screen up by one row */
|
||||||
|
guac_send_copy(io,
|
||||||
|
GUAC_DEFAULT_LAYER, 0, term->char_height,
|
||||||
|
term->char_width * term->term_width,
|
||||||
|
term->char_height * (term->term_height - 1),
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER, 0, 0);
|
||||||
|
|
||||||
|
/* Fill bottom row with background */
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
0, term->char_height * (term->term_height - 1),
|
||||||
|
term->char_width * term->term_width,
|
||||||
|
term->char_height * term->term_height,
|
||||||
|
0, 0, 0, 255);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (c) {
|
||||||
|
|
||||||
|
/* Bell */
|
||||||
|
case 0x07:
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* Backspace */
|
||||||
|
case 0x08:
|
||||||
|
if (term->cursor_col >= 1)
|
||||||
|
term->cursor_col--;
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* Carriage return */
|
||||||
|
case '\r':
|
||||||
|
term->cursor_col = 0;
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* Line feed */
|
||||||
|
case '\n':
|
||||||
|
term->cursor_row++;
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* ESC */
|
||||||
|
case 0x1B:
|
||||||
|
term->char_handler = ssh_guac_terminal_escape;
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* Displayable chars */
|
||||||
|
default:
|
||||||
|
ssh_guac_terminal_send_glyph(term,
|
||||||
|
term->cursor_row,
|
||||||
|
term->cursor_col,
|
||||||
|
c);
|
||||||
|
|
||||||
|
/* Advance cursor */
|
||||||
|
term->cursor_col++;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int ssh_guac_terminal_escape(ssh_guac_terminal* term, char c) {
|
||||||
|
|
||||||
|
switch (c) {
|
||||||
|
|
||||||
|
case '(':
|
||||||
|
term->char_handler = ssh_guac_terminal_charset;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ']':
|
||||||
|
term->char_handler = ssh_guac_terminal_osc;
|
||||||
|
term->term_seq_argc = 0;
|
||||||
|
term->term_seq_argv_buffer_current = 0;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case '[':
|
||||||
|
term->char_handler = ssh_guac_terminal_csi;
|
||||||
|
term->term_seq_argc = 0;
|
||||||
|
term->term_seq_argv_buffer_current = 0;
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
guac_log_info("Unhandled ESC sequence: %c", c);
|
||||||
|
term->char_handler = ssh_guac_terminal_echo;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int ssh_guac_terminal_charset(ssh_guac_terminal* term, char c) {
|
||||||
|
term->char_handler = ssh_guac_terminal_echo;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ssh_guac_terminal_csi(ssh_guac_terminal* term, char c) {
|
||||||
|
|
||||||
|
GUACIO* io = term->client->io;
|
||||||
|
|
||||||
|
/* FIXME: "The sequence of parameters may be preceded by a single question mark. */
|
||||||
|
if (c == '?')
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
/* Digits get concatenated into argv */
|
||||||
|
if (c >= '0' && c <= '9') {
|
||||||
|
|
||||||
|
/* Concatenate digit if there is space in buffer */
|
||||||
|
if (term->term_seq_argv_buffer_current <
|
||||||
|
sizeof(term->term_seq_argv_buffer)) {
|
||||||
|
|
||||||
|
term->term_seq_argv_buffer[
|
||||||
|
term->term_seq_argv_buffer_current++
|
||||||
|
] = c;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Any non-digit stops the parameter, and possibly the sequence */
|
||||||
|
else {
|
||||||
|
|
||||||
|
/* At most 16 parameters */
|
||||||
|
if (term->term_seq_argc < 16) {
|
||||||
|
/* Finish parameter */
|
||||||
|
term->term_seq_argv_buffer[term->term_seq_argv_buffer_current] = 0;
|
||||||
|
term->term_seq_argv[term->term_seq_argc++] =
|
||||||
|
atoi(term->term_seq_argv_buffer);
|
||||||
|
|
||||||
|
/* Prepare for next parameter */
|
||||||
|
term->term_seq_argv_buffer_current = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Handle CSI functions */
|
||||||
|
switch (c) {
|
||||||
|
|
||||||
|
/* H: Move cursor */
|
||||||
|
case 'H':
|
||||||
|
term->cursor_row = term->term_seq_argv[0] - 1;
|
||||||
|
term->cursor_col = term->term_seq_argv[1] - 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* J: Erase display */
|
||||||
|
case 'J':
|
||||||
|
|
||||||
|
/* Erase from cursor to end of display */
|
||||||
|
if (term->term_seq_argv[0] == 0) {
|
||||||
|
|
||||||
|
/* Until end of line */
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
term->cursor_col * term->char_width,
|
||||||
|
term->cursor_row * term->char_height,
|
||||||
|
(term->term_width - term->cursor_col) * term->char_width,
|
||||||
|
term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
|
||||||
|
/* Until end of display */
|
||||||
|
if (term->cursor_row < term->term_height - 1) {
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
0,
|
||||||
|
(term->cursor_row+1) * term->char_height,
|
||||||
|
term->term_width * term->char_width,
|
||||||
|
term->term_height * term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Erase from start to cursor */
|
||||||
|
else if (term->term_seq_argv[0] == 1) {
|
||||||
|
|
||||||
|
/* Until start of line */
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
0,
|
||||||
|
term->cursor_row * term->char_height,
|
||||||
|
term->cursor_col * term->char_width,
|
||||||
|
term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
|
||||||
|
/* From start */
|
||||||
|
if (term->cursor_row >= 1) {
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
0,
|
||||||
|
0,
|
||||||
|
term->term_width * term->char_width,
|
||||||
|
(term->cursor_row-1) * term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Entire screen */
|
||||||
|
else if (term->term_seq_argv[0] == 2) {
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
0,
|
||||||
|
0,
|
||||||
|
term->term_width * term->char_width,
|
||||||
|
term->term_height * term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* K: Erase line */
|
||||||
|
case 'K':
|
||||||
|
|
||||||
|
/* Erase from cursor to end of line */
|
||||||
|
if (term->term_seq_argv[0] == 0) {
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
term->cursor_col * term->char_width,
|
||||||
|
term->cursor_row * term->char_height,
|
||||||
|
(term->term_width - term->cursor_col) * term->char_width,
|
||||||
|
term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Erase from start to cursor */
|
||||||
|
else if (term->term_seq_argv[0] == 1) {
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
0,
|
||||||
|
term->cursor_row * term->char_height,
|
||||||
|
term->cursor_col * term->char_width,
|
||||||
|
term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Erase line */
|
||||||
|
else if (term->term_seq_argv[0] == 2) {
|
||||||
|
guac_send_rect(io,
|
||||||
|
GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
|
||||||
|
0,
|
||||||
|
term->cursor_row * term->char_height,
|
||||||
|
term->term_width * term->char_width,
|
||||||
|
term->char_height,
|
||||||
|
0, 0, 0, 255); /* Background color */
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* Warn of unhandled codes */
|
||||||
|
default:
|
||||||
|
if (c != ';')
|
||||||
|
guac_log_info("Unhandled CSI sequence: %c", c);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
/* If not a semicolon, end of CSI sequence */
|
||||||
|
if (c != ';')
|
||||||
|
term->char_handler = ssh_guac_terminal_echo;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int ssh_guac_terminal_osc(ssh_guac_terminal* term, char c) {
|
||||||
|
/* TODO: Implement OSC */
|
||||||
|
if (c == 0x9C || c == 0x5C || c == 0x07) /* ECMA-48 ST (String Terminator */
|
||||||
|
term->char_handler = ssh_guac_terminal_echo;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
Loading…
Reference in New Issue
Block a user