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// BadWolf: Minimalist and privacy-oriented WebKitGTK+ browser
// Copyright © 2019 Haelwenn (lanodan) Monnier <contact@hacktivis.me>
// SPDX-License-Identifier: BSD-3-Clause
#include <stdio.h> /* fprintf() */
#include <gtk/gtk.h>
#include <webkit2/webkit2.h>
struct Client
{
GtkWidget *main_window;
GtkWidget *box;
GtkWidget *toolbar;
GtkWidget *javascript;
GtkWidget *location;
GtkWidget *statusbar;
WebKitWebView *webView;
};
static gboolean WebViewCb_close(WebKitWebView *webView, GtkWidget *window)
{
(void)webView;
gtk_widget_destroy(window);
return TRUE;
}
static gboolean WebViewCb_web_process_terminated(WebKitWebView *webView,
WebKitWebProcessTerminationReason reason)
{
(void)webView;
char *str_reason;
switch(reason)
{
case WEBKIT_WEB_PROCESS_CRASHED:
str_reason = "the web process crashed.";
break;
case WEBKIT_WEB_PROCESS_EXCEEDED_MEMORY_LIMIT:
str_reason = "the web process exceeded the memory limit.";
break;
default:
str_reason = "the web process terminated for an unknown reason.";
}
fprintf(stderr, "BadWolf [signal: web-process-terminated]: %s\n", str_reason);
return FALSE;
}
static gboolean WebViewCb_notify__uri(WebKitWebView *webView, GParamSpec *pspec, gpointer user_data)
{
(void)webView;
(void)pspec;
const gchar *location_uri;
struct Client *browser = (struct Client *)user_data;
location_uri = webkit_web_view_get_uri(browser->webView);
gtk_entry_set_text(GTK_ENTRY(browser->location), location_uri);
return TRUE;
}
static gboolean
WebViewCb_notify__title(WebKitWebView *webView, GParamSpec *pspec, gpointer user_data)
{
(void)webView;
(void)pspec;
const gchar *title;
struct Client *browser = (struct Client *)user_data;
title = webkit_web_view_get_title(browser->webView);
if(title == NULL) title = webkit_web_view_get_uri(browser->webView);
if(title == NULL) title = "BadWolf";
gtk_window_set_title(GTK_WINDOW(browser->main_window), title);
return TRUE;
}
static gboolean WebViewCb_notify__estimated_load_progress(WebKitWebView *webView,
GParamSpec *pspec,
gpointer user_data)
{
(void)webView;
(void)pspec;
struct Client *browser = (struct Client *)user_data;
gdouble progress;
progress = webkit_web_view_get_estimated_load_progress(browser->webView);
if(progress == 1)
{
progress = 0;
}
gtk_entry_set_progress_fraction(GTK_ENTRY(browser->location), progress);
return TRUE;
}
static gboolean WebViewCb_mouse_target_changed(WebKitWebView *webView,
WebKitHitTestResult *hit,
guint modifiers,
gpointer user_data)
{
(void)webView;
(void)modifiers;
struct Client *browser = (struct Client *)user_data;
const gchar *link_uri = webkit_hit_test_result_get_link_uri(hit);
gtk_label_set_text(GTK_LABEL(browser->statusbar), link_uri);
return TRUE;
}
static gboolean locationCb_activate(GtkEntry *location, gpointer user_data)
{
const char *target_url;
struct Client *browser = (struct Client *)user_data;
target_url = gtk_entry_get_text(location);
if(target_url != NULL) webkit_web_view_load_uri(browser->webView, target_url);
return TRUE;
}
static gboolean javascriptCb_toggled(GtkButton *javascript, gpointer user_data)
{
(void)javascript;
struct Client *browser = (struct Client *)user_data;
WebKitSettings *settings = webkit_web_view_get_settings(browser->webView);
gboolean javascript_enabled = webkit_settings_get_enable_javascript(settings);
webkit_settings_set_enable_javascript(settings, !javascript_enabled);
webkit_web_view_set_settings(browser->webView, settings);
return TRUE;
}
int main(int argc, char *argv[])
{
struct Client *browser = malloc(sizeof(struct Client));
char *target_url = "about:blank";
gtk_init(&argc, &argv);
if(argv[1]) target_url = argv[1];
browser->main_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
browser->box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
browser->toolbar = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
browser->location = gtk_entry_new();
browser->javascript = gtk_check_button_new();
browser->statusbar = gtk_label_new(NULL);
browser->webView = WEBKIT_WEB_VIEW(webkit_web_view_new());
gtk_container_add(GTK_CONTAINER(browser->main_window), browser->box);
gtk_box_pack_start(GTK_BOX(browser->toolbar), GTK_WIDGET(browser->javascript), FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(browser->toolbar), GTK_WIDGET(browser->location), TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(browser->box), GTK_WIDGET(browser->toolbar), FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(browser->box), GTK_WIDGET(browser->webView), TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(browser->box), GTK_WIDGET(browser->statusbar), FALSE, FALSE, 0);
gtk_widget_set_halign(browser->statusbar, GTK_ALIGN_START);
gtk_label_set_single_line_mode(GTK_LABEL(browser->statusbar), TRUE);
gtk_entry_set_text(GTK_ENTRY(browser->location), target_url);
gtk_entry_set_has_frame(GTK_ENTRY(browser->location), FALSE);
gtk_entry_set_input_purpose(GTK_ENTRY(browser->location), GTK_INPUT_PURPOSE_URL);
g_signal_connect(browser->main_window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
g_signal_connect(browser->location, "activate", G_CALLBACK(locationCb_activate), browser);
g_signal_connect(browser->javascript, "toggled", G_CALLBACK(javascriptCb_toggled), browser);
g_signal_connect(browser->webView, "close", G_CALLBACK(WebViewCb_close), browser->main_window);
g_signal_connect(browser->webView,
"web-process-terminated",
G_CALLBACK(WebViewCb_web_process_terminated),
NULL);
g_signal_connect(browser->webView, "notify::uri", G_CALLBACK(WebViewCb_notify__uri), browser);
g_signal_connect(browser->webView, "notify::title", G_CALLBACK(WebViewCb_notify__title), browser);
g_signal_connect(browser->webView,
"mouse-target-changed",
G_CALLBACK(WebViewCb_mouse_target_changed),
browser);
g_signal_connect(browser->webView,
"notify::estimated-load-progress",
G_CALLBACK(WebViewCb_notify__estimated_load_progress),
browser);
WebKitSettings *settings = webkit_web_view_get_settings(browser->webView);
webkit_settings_set_default_charset(settings, "utf-8");
webkit_settings_set_enable_caret_browsing(settings, TRUE);
webkit_settings_set_enable_developer_extras(settings, TRUE);
webkit_settings_set_enable_java(settings, FALSE); /* dangerous */
webkit_settings_set_enable_javascript(settings, FALSE); /* sane default 😏 */
webkit_settings_set_enable_plugins(settings, FALSE); /* dangerous */
webkit_settings_set_javascript_can_access_clipboard(settings, FALSE); /* dangerous */
webkit_settings_set_javascript_can_open_windows_automatically(settings, FALSE); /* dangerous */
webkit_settings_set_media_playback_requires_user_gesture(settings, TRUE); /* typically breaks notification sounds */
webkit_settings_set_minimum_font_size(settings, 9); /* text needs to be readable; screw broken pages */
webkit_web_view_set_settings(browser->webView, settings);
webkit_web_view_load_uri(browser->webView, target_url);
gtk_widget_grab_focus(GTK_WIDGET(browser->webView));
gtk_widget_show_all(browser->main_window);
gtk_main();
return 0;
}
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