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Badusb: show script errors on screen (#1506)

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Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Thibaut CHARLES 2022-10-12 18:21:54 +02:00 committed by GitHub
parent eb4ff3c0fd
commit ede3bac799
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 37 additions and 4 deletions
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39
applications/main/bad_usb/bad_usb_script.c
View file

@ -231,7 +231,8 @@ static uint16_t ducky_get_keycode(const char* param, bool accept_chars) {
return 0;
}
static int32_t ducky_parse_line(BadUsbScript* bad_usb, FuriString* line) {
static int32_t
ducky_parse_line(BadUsbScript* bad_usb, FuriString* line, char* error, size_t error_len) {
uint32_t line_len = furi_string_size(line);
const char* line_tmp = furi_string_get_cstr(line);
bool state = false;
@ -261,6 +262,9 @@ static int32_t ducky_parse_line(BadUsbScript* bad_usb, FuriString* line) {
if((state) && (delay_val > 0)) {
return (int32_t)delay_val;
}
if(error != NULL) {
snprintf(error, error_len, "Invalid number %s", line_tmp);
}
return SCRIPT_STATE_ERROR;
} else if(
(strncmp(line_tmp, ducky_cmd_defdelay_1, strlen(ducky_cmd_defdelay_1)) == 0) ||
@ -268,17 +272,26 @@ static int32_t ducky_parse_line(BadUsbScript* bad_usb, FuriString* line) {
// DEFAULT_DELAY
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
state = ducky_get_number(line_tmp, &bad_usb->defdelay);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid number %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_string, strlen(ducky_cmd_string)) == 0) {
// STRING
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
state = ducky_string(line_tmp);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid string %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_altchar, strlen(ducky_cmd_altchar)) == 0) {
// ALTCHAR
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
ducky_numlock_on();
state = ducky_altchar(line_tmp);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid altchar %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(
(strncmp(line_tmp, ducky_cmd_altstr_1, strlen(ducky_cmd_altstr_1)) == 0) ||
@ -287,11 +300,17 @@ static int32_t ducky_parse_line(BadUsbScript* bad_usb, FuriString* line) {
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
ducky_numlock_on();
state = ducky_altstring(line_tmp);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid altstring %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_repeat, strlen(ducky_cmd_repeat)) == 0) {
// REPEAT
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
state = ducky_get_number(line_tmp, &bad_usb->repeat_cnt);
if(!state && error != NULL) {
snprintf(error, error_len, "Invalid number %s", line_tmp);
}
return (state) ? (0) : SCRIPT_STATE_ERROR;
} else if(strncmp(line_tmp, ducky_cmd_sysrq, strlen(ducky_cmd_sysrq)) == 0) {
// SYSRQ
@ -304,7 +323,12 @@ static int32_t ducky_parse_line(BadUsbScript* bad_usb, FuriString* line) {
} else {
// Special keys + modifiers
uint16_t key = ducky_get_keycode(line_tmp, false);
if(key == HID_KEYBOARD_NONE) return SCRIPT_STATE_ERROR;
if(key == HID_KEYBOARD_NONE) {
if(error != NULL) {
snprintf(error, error_len, "No keycode defined for %s", line_tmp);
}
return SCRIPT_STATE_ERROR;
}
if((key & 0xFF00) != 0) {
// It's a modifier key
line_tmp = &line_tmp[ducky_get_command_len(line_tmp) + 1];
@ -314,6 +338,9 @@ static int32_t ducky_parse_line(BadUsbScript* bad_usb, FuriString* line) {
furi_hal_hid_kb_release(key);
return (0);
}
if(error != NULL) {
strncpy(error, "Unknown error", error_len);
}
return SCRIPT_STATE_ERROR;
}
@ -392,7 +419,8 @@ static int32_t ducky_script_execute_next(BadUsbScript* bad_usb, File* script_fil
if(bad_usb->repeat_cnt > 0) {
bad_usb->repeat_cnt--;
delay_val = ducky_parse_line(bad_usb, bad_usb->line_prev);
delay_val = ducky_parse_line(
bad_usb, bad_usb->line_prev, bad_usb->st.error, sizeof(bad_usb->st.error));
if(delay_val == SCRIPT_STATE_NEXT_LINE) { // Empty line
return 0;
} else if(delay_val < 0) { // Script error
@ -426,7 +454,9 @@ static int32_t ducky_script_execute_next(BadUsbScript* bad_usb, File* script_fil
bad_usb->st.line_cur++;
bad_usb->buf_len = bad_usb->buf_len + bad_usb->buf_start - (i + 1);
bad_usb->buf_start = i + 1;
delay_val = ducky_parse_line(bad_usb, bad_usb->line);
delay_val = ducky_parse_line(
bad_usb, bad_usb->line, bad_usb->st.error, sizeof(bad_usb->st.error));
if(delay_val < 0) {
bad_usb->st.error_line = bad_usb->st.line_cur;
FURI_LOG_E(WORKER_TAG, "Unknown command at line %u", bad_usb->st.line_cur);
@ -602,6 +632,7 @@ BadUsbScript* bad_usb_script_open(FuriString* file_path) {
furi_string_set(bad_usb->file_path, file_path);
bad_usb->st.state = BadUsbStateInit;
bad_usb->st.error[0] = '\0';
bad_usb->thread = furi_thread_alloc();
furi_thread_set_name(bad_usb->thread, "BadUsbWorker");

1
applications/main/bad_usb/bad_usb_script.h
View file

@ -25,6 +25,7 @@ typedef struct {
uint16_t line_nb;
uint32_t delay_remain;
uint16_t error_line;
char error[64];
} BadUsbState;
BadUsbScript* bad_usb_script_open(FuriString* file_path);

1
applications/main/bad_usb/views/bad_usb_view.c
View file

@ -53,6 +53,7 @@ static void bad_usb_draw_callback(Canvas* canvas, void* _model) {
canvas_draw_str_aligned(
canvas, 127, 46, AlignRight, AlignBottom, furi_string_get_cstr(disp_str));
furi_string_reset(disp_str);
canvas_draw_str_aligned(canvas, 127, 56, AlignRight, AlignBottom, model->state.error);
} else if(model->state.state == BadUsbStateIdle) {
canvas_draw_icon(canvas, 4, 22, &I_Smile_18x18);
canvas_set_font(canvas, FontBigNumbers);