Generate CSS rules from adblock element blocking lines
This commit is contained in:
Alexander Butenko
Christian Dywan
parent
516547814c
commit
5f98925a02
1 changed files with 108 additions and 41 deletions
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@ -23,6 +23,7 @@
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#if WEBKIT_CHECK_VERSION (1, 1, 14)
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static GHashTable* pattern = NULL;
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static gchar* blockcss = "";
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static gchar *
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adblock_fixup_regexp (gchar* src)
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@ -65,26 +66,6 @@ adblock_browser_populate_tool_menu_cb (MidoriBrowser* browser,
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GtkWidget* menu,
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MidoriExtension* extension);
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static void
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adblock_app_add_browser_cb (MidoriApp* app,
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MidoriBrowser* browser,
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MidoriExtension* extension);
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static void
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adblock_deactivate_cb (MidoriExtension* extension,
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MidoriBrowser* browser)
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{
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MidoriApp* app = midori_extension_get_app (extension);
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g_signal_handlers_disconnect_by_func (
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browser, adblock_browser_populate_tool_menu_cb, extension);
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g_signal_handlers_disconnect_by_func (
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extension, adblock_deactivate_cb, browser);
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g_signal_handlers_disconnect_by_func (
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app, adblock_app_add_browser_cb, extension);
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/* FIXME: Disconnect session callbacks */
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}
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static void
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adblock_preferences_renderer_text_edited_cb (GtkCellRenderer* renderer,
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const gchar* tree_path,
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@ -340,50 +321,107 @@ adblock_resource_request_starting_cb (WebKitWebView* web_view,
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}
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}
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static gchar*
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adblock_build_js (gchar* style)
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{
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return g_strdup_printf (
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"window.addEventListener ('DOMContentLoaded',"
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"function () {"
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"var mystyle = document.createElement(\"style\");"
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"mystyle.setAttribute(\"type\", \"text/css\");"
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"mystyle.appendChild(document.createTextNode('%s'));"
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"var head = document.getElementsByTagName(\"head\")[0];"
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"if (head) head.appendChild(mystyle);"
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"else document.documentElement.insertBefore(mystyle, document.documentElement.firstChild);"
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"}, true);",
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style);
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}
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static void
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adblock_window_object_cleared_cb (GtkWidget* web_view,
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WebKitWebFrame* web_frame,
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JSContextRef js_context,
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JSObjectRef js_window)
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{
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webkit_web_view_execute_script (WEBKIT_WEB_VIEW (web_view),
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adblock_build_js (blockcss));
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}
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static void
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adblock_add_tab_cb (MidoriBrowser* browser,
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MidoriView* view)
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{
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GtkWidget* web_view = gtk_bin_get_child (GTK_BIN (view));
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if (blockcss && *blockcss)
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g_signal_connect (web_view, "window-object-cleared",
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G_CALLBACK (adblock_window_object_cleared_cb), 0);
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if (pattern)
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g_signal_connect (web_view, "resource-request-starting",
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G_CALLBACK (adblock_resource_request_starting_cb), view);
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}
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static void
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adblock_deactivate_cb (MidoriExtension* extension,
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MidoriBrowser* browser);
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static void
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adblock_add_tab_foreach_cb (MidoriView* view,
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MidoriBrowser* browser)
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{
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adblock_add_tab_cb (browser, view);
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}
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static void
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adblock_app_add_browser_cb (MidoriApp* app,
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MidoriBrowser* browser,
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MidoriExtension* extension)
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{
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if (pattern)
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g_signal_connect (browser, "add-tab",
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G_CALLBACK (adblock_add_tab_cb), 0);
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{
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midori_browser_foreach (browser, (GtkCallback)adblock_add_tab_foreach_cb, browser);
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g_signal_connect (browser, "add-tab", G_CALLBACK (adblock_add_tab_cb), 0);
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}
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g_signal_connect (browser, "populate-tool-menu",
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G_CALLBACK (adblock_browser_populate_tool_menu_cb), extension);
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g_signal_connect (extension, "deactivate",
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G_CALLBACK (adblock_deactivate_cb), browser);
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}
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static void
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adblock_frame_add (gchar* line)
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{
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(void)*line++;
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(void)*line++;
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blockcss = g_strdup_printf ("%s %s { display: none !important; }",blockcss,line);
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}
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static gchar*
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adblock_parse_line (gchar* line)
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{
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if (!line)
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return NULL;
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g_strchomp (line);
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/* Ignore comments and new lines */
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if (line[0] == '!')
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return NULL;
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/* FIXME: No support for whitelisting */
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if (line[0] == '@' && line[1] == '@')
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return NULL;
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/* FIXME: Differentiate # comments from element hiding */
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/* FIXME: No support for element hiding */
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/* Got block hider */
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if (line[0] == '#' && line[1] == '#' && (line[2] == '.'||line[2] == '#'||line[2] == 'a'))
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{
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adblock_frame_add (line);
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return NULL;
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}
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/* FIXME: Do we have smth else starting with ##? */
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if (line[0] == '#' && line[1] == '#')
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return NULL;
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/* FIXME: No support for per domain element hiding */
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if (strstr (line,"##"))
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return NULL;
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/* FIXME: No support for [include] and [exclude] tags */
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if (line[0] == '[')
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return NULL;
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g_strchomp (line);
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return adblock_fixup_regexp (line);
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}
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@ -391,7 +429,6 @@ static GHashTable*
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adblock_parse_file (gchar* path)
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{
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FILE* file;
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if ((file = g_fopen (path, "r")))
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{
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GHashTable* patt = g_hash_table_new_full (g_str_hash, g_str_equal,
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@ -430,8 +467,6 @@ adblock_parse_file (gchar* path)
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if (have_pattern)
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return patt;
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}
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/* FIXME: This should presumably be freed, but there's a possible crash
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g_free (path); */
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return NULL;
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}
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@ -444,6 +479,37 @@ adblock_download_notify_status_cb (WebKitDownload* download,
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/* g_object_unref (download); */
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}
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static void
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adblock_deactivate_tabs (MidoriView* view,
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MidoriBrowser* browser)
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{
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GtkWidget* web_view = gtk_bin_get_child (GTK_BIN (view));
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g_signal_handlers_disconnect_by_func (
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browser, adblock_add_tab_cb, 0);
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g_signal_handlers_disconnect_by_func (
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web_view, adblock_window_object_cleared_cb, 0);
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g_signal_handlers_disconnect_by_func (
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web_view, adblock_resource_request_starting_cb, view);
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}
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static void
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adblock_deactivate_cb (MidoriExtension* extension,
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MidoriBrowser* browser)
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{
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MidoriApp* app = midori_extension_get_app (extension);
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g_signal_handlers_disconnect_by_func (
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browser, adblock_browser_populate_tool_menu_cb, extension);
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g_signal_handlers_disconnect_by_func (
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extension, adblock_deactivate_cb, browser);
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g_signal_handlers_disconnect_by_func (
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app, adblock_app_add_browser_cb, extension);
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midori_browser_foreach (browser, (GtkCallback)adblock_deactivate_tabs, browser);
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pattern = NULL;
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blockcss = "";
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}
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static void
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adblock_activate_cb (MidoriExtension* extension,
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MidoriApp* app)
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@ -453,17 +519,7 @@ adblock_activate_cb (MidoriExtension* extension,
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guint i;
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gchar* folder;
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gchar** filters;
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SoupSession* session;
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browsers = katze_object_get_object (app, "browsers");
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i = 0;
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while ((browser = katze_array_get_nth_item (browsers, i++)))
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adblock_app_add_browser_cb (app, browser, extension);
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g_signal_connect (app, "add-browser",
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G_CALLBACK (adblock_app_add_browser_cb), extension);
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g_object_unref (browsers);
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session = webkit_get_default_session ();
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folder = g_build_filename (g_get_user_cache_dir (), PACKAGE_NAME,
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"adblock", NULL);
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g_mkdir_with_parents (folder, 0700);
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@ -476,6 +532,7 @@ adblock_activate_cb (MidoriExtension* extension,
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gchar* filename = g_compute_checksum_for_string (G_CHECKSUM_MD5,
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filters[i - 1], -1);
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gchar* path = g_build_filename (folder, filename, NULL);
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if (!g_file_test (path, G_FILE_TEST_EXISTS))
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{
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WebKitNetworkRequest* request;
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@ -493,9 +550,19 @@ adblock_activate_cb (MidoriExtension* extension,
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}
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else
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pattern = adblock_parse_file (path);
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g_free (path);
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g_free (filename);
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}
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}
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browsers = katze_object_get_object (app, "browsers");
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i = 0;
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while ((browser = katze_array_get_nth_item (browsers, i++)))
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adblock_app_add_browser_cb (app, browser, extension);
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g_signal_connect (app, "add-browser",
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G_CALLBACK (adblock_app_add_browser_cb), extension);
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g_object_unref (browsers);
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g_strfreev (filters);
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g_free (folder);
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}
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