411 lines
9.3 KiB
C
411 lines
9.3 KiB
C
|
#include "gl-app.h"
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#ifndef PATH_MAX
|
||
|
|
#define PATH_MAX 2048
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "mupdf/helpers/pkcs7-check.h"
|
||
|
|
#include "mupdf/helpers/pkcs7-openssl.h"
|
||
|
|
|
||
|
|
static pdf_widget *sig_widget;
|
||
|
|
static char sig_designated_name[500];
|
||
|
|
static enum pdf_signature_error sig_cert_error;
|
||
|
|
static enum pdf_signature_error sig_digest_error;
|
||
|
|
static int sig_subsequent_edits;
|
||
|
|
|
||
|
|
static char cert_filename[PATH_MAX];
|
||
|
|
static struct input cert_password;
|
||
|
|
|
||
|
|
static void do_sign(void)
|
||
|
|
{
|
||
|
|
pdf_pkcs7_signer *signer = NULL;
|
||
|
|
|
||
|
|
fz_var(signer);
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
signer = pkcs7_openssl_read_pfx(ctx, cert_filename, cert_password.text);
|
||
|
|
pdf_sign_signature(ctx, pdf, sig_widget, signer);
|
||
|
|
ui_show_warning_dialog("Signed document successfully.");
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
if (signer)
|
||
|
|
signer->drop(signer);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
ui_show_warning_dialog("%s", fz_caught_message(ctx));
|
||
|
|
|
||
|
|
if (pdf_update_page(ctx, sig_widget->page))
|
||
|
|
render_page();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void do_clear_signature(void)
|
||
|
|
{
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
pdf_clear_signature(ctx, pdf, sig_widget);
|
||
|
|
ui_show_warning_dialog("Signature cleared successfully.");
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
ui_show_warning_dialog("%s", fz_caught_message(ctx));
|
||
|
|
|
||
|
|
if (pdf_update_page(ctx, sig_widget->page))
|
||
|
|
render_page();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void cert_password_dialog(void)
|
||
|
|
{
|
||
|
|
int is;
|
||
|
|
ui_dialog_begin(400, (ui.gridsize+4)*3);
|
||
|
|
{
|
||
|
|
ui_layout(T, X, NW, 2, 2);
|
||
|
|
ui_label("Password:");
|
||
|
|
is = ui_input(&cert_password, 200, 1);
|
||
|
|
|
||
|
|
ui_layout(B, X, NW, 2, 2);
|
||
|
|
ui_panel_begin(0, ui.gridsize, 0, 0, 0);
|
||
|
|
{
|
||
|
|
ui_layout(R, NONE, S, 0, 0);
|
||
|
|
if (ui_button("Cancel"))
|
||
|
|
ui.dialog = NULL;
|
||
|
|
ui_spacer();
|
||
|
|
if (ui_button("Okay") || is == UI_INPUT_ACCEPT)
|
||
|
|
{
|
||
|
|
ui.dialog = NULL;
|
||
|
|
do_sign();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ui_panel_end();
|
||
|
|
}
|
||
|
|
ui_dialog_end();
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cert_file_filter(const char *fn)
|
||
|
|
{
|
||
|
|
return !!strstr(fn, ".pfx");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void cert_file_dialog(void)
|
||
|
|
{
|
||
|
|
if (ui_open_file(cert_filename))
|
||
|
|
{
|
||
|
|
if (cert_filename[0] != 0)
|
||
|
|
{
|
||
|
|
ui_input_init(&cert_password, "");
|
||
|
|
ui.focus = &cert_password;
|
||
|
|
ui.dialog = cert_password_dialog;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
ui.dialog = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void sig_sign_dialog(void)
|
||
|
|
{
|
||
|
|
const char *label = pdf_field_label(ctx, sig_widget->obj);
|
||
|
|
|
||
|
|
ui_dialog_begin(400, (ui.gridsize+4)*3 + ui.lineheight*10);
|
||
|
|
{
|
||
|
|
ui_layout(T, X, NW, 2, 2);
|
||
|
|
|
||
|
|
ui_label("%s", label);
|
||
|
|
ui_spacer();
|
||
|
|
|
||
|
|
ui_label("Would you like to sign this field?");
|
||
|
|
|
||
|
|
ui_layout(B, X, NW, 2, 2);
|
||
|
|
ui_panel_begin(0, ui.gridsize, 0, 0, 0);
|
||
|
|
{
|
||
|
|
ui_layout(R, NONE, S, 0, 0);
|
||
|
|
if (ui_button("Cancel") || (!ui.focus && ui.key == KEY_ESCAPE))
|
||
|
|
ui.dialog = NULL;
|
||
|
|
ui_spacer();
|
||
|
|
if (!(pdf_field_flags(ctx, sig_widget->obj) & PDF_FIELD_IS_READ_ONLY))
|
||
|
|
{
|
||
|
|
if (ui_button("Sign"))
|
||
|
|
{
|
||
|
|
fz_strlcpy(cert_filename, filename, sizeof cert_filename);
|
||
|
|
ui_init_open_file(".", cert_file_filter);
|
||
|
|
ui.dialog = cert_file_dialog;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ui_panel_end();
|
||
|
|
}
|
||
|
|
ui_dialog_end();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void sig_verify_dialog(void)
|
||
|
|
{
|
||
|
|
const char *label = pdf_field_label(ctx, sig_widget->obj);
|
||
|
|
|
||
|
|
ui_dialog_begin(400, (ui.gridsize+4)*3 + ui.lineheight*10);
|
||
|
|
{
|
||
|
|
ui_layout(T, X, NW, 2, 2);
|
||
|
|
|
||
|
|
ui_label("%s", label);
|
||
|
|
ui_spacer();
|
||
|
|
|
||
|
|
ui_label("Designated name: %s.", sig_designated_name);
|
||
|
|
ui_spacer();
|
||
|
|
|
||
|
|
if (sig_cert_error)
|
||
|
|
ui_label("Certificate error: %s", pdf_signature_error_description(sig_cert_error));
|
||
|
|
else
|
||
|
|
ui_label("Certificate is trusted.");
|
||
|
|
|
||
|
|
ui_spacer();
|
||
|
|
|
||
|
|
if (sig_digest_error)
|
||
|
|
ui_label("Digest error: %s", pdf_signature_error_description(sig_digest_error));
|
||
|
|
else if (sig_subsequent_edits)
|
||
|
|
ui_label("The signature is valid but there have been edits since signing.");
|
||
|
|
else
|
||
|
|
ui_label("The document is unchanged since signing.");
|
||
|
|
|
||
|
|
ui_layout(B, X, NW, 2, 2);
|
||
|
|
ui_panel_begin(0, ui.gridsize, 0, 0, 0);
|
||
|
|
{
|
||
|
|
ui_layout(L, NONE, S, 0, 0);
|
||
|
|
if (ui_button("Clear"))
|
||
|
|
{
|
||
|
|
ui.dialog = NULL;
|
||
|
|
do_clear_signature();
|
||
|
|
}
|
||
|
|
ui_layout(R, NONE, S, 0, 0);
|
||
|
|
if (ui_button("Close") || (!ui.focus && ui.key == KEY_ESCAPE))
|
||
|
|
ui.dialog = NULL;
|
||
|
|
}
|
||
|
|
ui_panel_end();
|
||
|
|
}
|
||
|
|
ui_dialog_end();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void show_sig_dialog(pdf_widget *widget)
|
||
|
|
{
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
sig_widget = widget;
|
||
|
|
|
||
|
|
if (pdf_signature_is_signed(ctx, pdf, widget->obj))
|
||
|
|
{
|
||
|
|
sig_cert_error = pdf_check_certificate(ctx, pdf, widget->obj);
|
||
|
|
sig_digest_error = pdf_check_digest(ctx, pdf, widget->obj);
|
||
|
|
sig_subsequent_edits = pdf_signature_incremental_change_since_signing(ctx, pdf, widget->obj);
|
||
|
|
pdf_signature_designated_name(ctx, pdf, widget->obj, sig_designated_name, sizeof(sig_designated_name));
|
||
|
|
ui.dialog = sig_verify_dialog;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ui.dialog = sig_sign_dialog;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
ui_show_warning_dialog("%s", fz_caught_message(ctx));
|
||
|
|
}
|
||
|
|
|
||
|
|
static pdf_widget *tx_widget;
|
||
|
|
static struct input tx_input;
|
||
|
|
|
||
|
|
static void tx_dialog(void)
|
||
|
|
{
|
||
|
|
int ff = pdf_field_flags(ctx, tx_widget->obj);
|
||
|
|
const char *label = pdf_field_label(ctx, tx_widget->obj);
|
||
|
|
int tx_h = (ff & PDF_TX_FIELD_IS_MULTILINE) ? 10 : 1;
|
||
|
|
int lbl_h = ui_break_lines((char*)label, NULL, 20, 394, NULL);
|
||
|
|
int is;
|
||
|
|
|
||
|
|
ui_dialog_begin(400, (ui.gridsize+4)*3 + ui.lineheight*(tx_h+lbl_h-2));
|
||
|
|
{
|
||
|
|
ui_layout(T, X, NW, 2, 2);
|
||
|
|
ui_label("%s", label);
|
||
|
|
is = ui_input(&tx_input, 200, tx_h);
|
||
|
|
|
||
|
|
ui_layout(B, X, NW, 2, 2);
|
||
|
|
ui_panel_begin(0, ui.gridsize, 0, 0, 0);
|
||
|
|
{
|
||
|
|
ui_layout(R, NONE, S, 0, 0);
|
||
|
|
if (ui_button("Cancel") || (!ui.focus && ui.key == KEY_ESCAPE))
|
||
|
|
ui.dialog = NULL;
|
||
|
|
ui_spacer();
|
||
|
|
if (ui_button("Okay") || is == UI_INPUT_ACCEPT)
|
||
|
|
{
|
||
|
|
pdf_set_text_field_value(ctx, tx_widget, tx_input.text);
|
||
|
|
if (pdf_update_page(ctx, tx_widget->page))
|
||
|
|
render_page();
|
||
|
|
ui.dialog = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ui_panel_end();
|
||
|
|
}
|
||
|
|
ui_dialog_end();
|
||
|
|
}
|
||
|
|
|
||
|
|
void show_tx_dialog(pdf_widget *widget)
|
||
|
|
{
|
||
|
|
ui_input_init(&tx_input, pdf_field_value(ctx, widget->obj));
|
||
|
|
ui.focus = &tx_input;
|
||
|
|
ui.dialog = tx_dialog;
|
||
|
|
tx_widget = widget;
|
||
|
|
}
|
||
|
|
|
||
|
|
static pdf_widget *ch_widget;
|
||
|
|
static void ch_dialog(void)
|
||
|
|
{
|
||
|
|
const char *label;
|
||
|
|
const char *value;
|
||
|
|
char **options;
|
||
|
|
int n, choice;
|
||
|
|
int label_h;
|
||
|
|
|
||
|
|
label = pdf_field_label(ctx, ch_widget->obj);
|
||
|
|
label_h = ui_break_lines((char*)label, NULL, 20, 394, NULL);
|
||
|
|
n = pdf_choice_widget_options(ctx, ch_widget, 0, NULL);
|
||
|
|
options = fz_malloc_array(ctx, n, char *);
|
||
|
|
pdf_choice_widget_options(ctx, ch_widget, 0, (const char **)options);
|
||
|
|
value = pdf_field_value(ctx, ch_widget->obj);
|
||
|
|
|
||
|
|
ui_dialog_begin(400, (ui.gridsize+4)*3 + ui.lineheight*(label_h-1));
|
||
|
|
{
|
||
|
|
ui_layout(T, X, NW, 2, 2);
|
||
|
|
|
||
|
|
ui_label("%s", label);
|
||
|
|
choice = ui_select("Widget/Ch", value, (const char **)options, n);
|
||
|
|
if (choice >= 0)
|
||
|
|
pdf_set_choice_field_value(ctx, ch_widget, options[choice]);
|
||
|
|
|
||
|
|
ui_layout(B, X, NW, 2, 2);
|
||
|
|
ui_panel_begin(0, ui.gridsize, 0, 0, 0);
|
||
|
|
{
|
||
|
|
ui_layout(R, NONE, S, 0, 0);
|
||
|
|
if (ui_button("Cancel") || (!ui.focus && ui.key == KEY_ESCAPE))
|
||
|
|
ui.dialog = NULL;
|
||
|
|
ui_spacer();
|
||
|
|
if (ui_button("Okay"))
|
||
|
|
{
|
||
|
|
if (pdf_update_page(ctx, ch_widget->page))
|
||
|
|
render_page();
|
||
|
|
ui.dialog = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ui_panel_end();
|
||
|
|
}
|
||
|
|
ui_dialog_end();
|
||
|
|
|
||
|
|
fz_free(ctx, options);
|
||
|
|
}
|
||
|
|
|
||
|
|
void do_widget_canvas(fz_irect canvas_area)
|
||
|
|
{
|
||
|
|
pdf_widget *widget;
|
||
|
|
fz_rect bounds;
|
||
|
|
fz_irect area;
|
||
|
|
|
||
|
|
if (!pdf)
|
||
|
|
return;
|
||
|
|
|
||
|
|
for (widget = pdf_first_widget(ctx, page); widget; widget = pdf_next_widget(ctx, widget))
|
||
|
|
{
|
||
|
|
bounds = pdf_bound_widget(ctx, widget);
|
||
|
|
bounds = fz_transform_rect(bounds, view_page_ctm);
|
||
|
|
area = fz_irect_from_rect(bounds);
|
||
|
|
|
||
|
|
if (ui_mouse_inside(canvas_area) && ui_mouse_inside(area))
|
||
|
|
{
|
||
|
|
if (!widget->is_hot)
|
||
|
|
pdf_annot_event_enter(ctx, widget);
|
||
|
|
widget->is_hot = 1;
|
||
|
|
|
||
|
|
ui.hot = widget;
|
||
|
|
if (!ui.active && ui.down)
|
||
|
|
{
|
||
|
|
ui.active = widget;
|
||
|
|
pdf_annot_event_down(ctx, widget);
|
||
|
|
if (selected_annot != widget)
|
||
|
|
{
|
||
|
|
if (selected_annot && pdf_annot_type(ctx, selected_annot) == PDF_ANNOT_WIDGET)
|
||
|
|
pdf_annot_event_blur(ctx, selected_annot);
|
||
|
|
selected_annot = widget;
|
||
|
|
pdf_annot_event_focus(ctx, widget);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (widget->is_hot)
|
||
|
|
pdf_annot_event_exit(ctx, widget);
|
||
|
|
widget->is_hot = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set is_hot and is_active to select current appearance */
|
||
|
|
widget->is_active = (ui.active == widget && ui.down);
|
||
|
|
|
||
|
|
if (showform)
|
||
|
|
{
|
||
|
|
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
|
||
|
|
glEnable(GL_BLEND);
|
||
|
|
glColor4f(0, 0, 1, 0.1f);
|
||
|
|
glRectf(area.x0, area.y0, area.x1, area.y1);
|
||
|
|
glDisable(GL_BLEND);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ui.active == widget || (!ui.active && ui.hot == widget))
|
||
|
|
{
|
||
|
|
glLineStipple(1, 0xAAAA);
|
||
|
|
glEnable(GL_LINE_STIPPLE);
|
||
|
|
glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ZERO);
|
||
|
|
glEnable(GL_BLEND);
|
||
|
|
glColor4f(1, 1, 1, 1);
|
||
|
|
glBegin(GL_LINE_LOOP);
|
||
|
|
glVertex2f(area.x0-0.5f, area.y0-0.5f);
|
||
|
|
glVertex2f(area.x1+0.5f, area.y0-0.5f);
|
||
|
|
glVertex2f(area.x1+0.5f, area.y1+0.5f);
|
||
|
|
glVertex2f(area.x0-0.5f, area.y1+0.5f);
|
||
|
|
glEnd();
|
||
|
|
glDisable(GL_BLEND);
|
||
|
|
glDisable(GL_LINE_STIPPLE);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ui.hot == widget && ui.active == widget && !ui.down)
|
||
|
|
{
|
||
|
|
pdf_annot_event_up(ctx, widget);
|
||
|
|
|
||
|
|
if (pdf_widget_type(ctx, widget) == PDF_WIDGET_TYPE_SIGNATURE)
|
||
|
|
{
|
||
|
|
show_sig_dialog(widget);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (pdf_field_flags(ctx, widget->obj) & PDF_FIELD_IS_READ_ONLY)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
switch (pdf_widget_type(ctx, widget))
|
||
|
|
{
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
case PDF_WIDGET_TYPE_CHECKBOX:
|
||
|
|
case PDF_WIDGET_TYPE_RADIOBUTTON:
|
||
|
|
pdf_toggle_widget(ctx, widget);
|
||
|
|
break;
|
||
|
|
case PDF_WIDGET_TYPE_TEXT:
|
||
|
|
show_tx_dialog(widget);
|
||
|
|
break;
|
||
|
|
case PDF_WIDGET_TYPE_COMBOBOX:
|
||
|
|
case PDF_WIDGET_TYPE_LISTBOX:
|
||
|
|
ui.dialog = ch_dialog;
|
||
|
|
ch_widget = widget;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pdf_update_page(ctx, page))
|
||
|
|
render_page();
|
||
|
|
}
|