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/*
* Copyright (C) 2017 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2,1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "WebKitRemoteInspectorProtocolHandler.h"
#if ENABLE(REMOTE_INSPECTOR)
#include "APIUserContentWorld.h"
#include "WebKitError.h"
#include "WebKitNavigationPolicyDecision.h"
#include "WebKitUserContentManagerPrivate.h"
#include "WebKitWebContextPrivate.h"
#include "WebScriptMessageHandler.h"
#include <WebCore/URL.h>
using namespace WebCore;
namespace WebKit {
class ScriptMessageClient final : public WebScriptMessageHandler::Client {
public:
ScriptMessageClient(RemoteInspectorProtocolHandler& inspectorProtocolHandler)
: m_inspectorProtocolHandler(inspectorProtocolHandler)
{
}
void didPostMessage(WebPageProxy& page, const FrameInfoData&, WebCore::SerializedScriptValue& serializedScriptValue) override
{
String message = serializedScriptValue.toString();
Vector<String> tokens;
message.split(":", tokens);
if (tokens.size() != 2)
return;
URL requestURL = URL(ParsedURLString, page.pageLoadState().url());
m_inspectorProtocolHandler.inspect(requestURL.hostAndPort(), tokens[0].toUInt64(), tokens[1].toUInt64());
}
~ScriptMessageClient() { }
private:
RemoteInspectorProtocolHandler& m_inspectorProtocolHandler;
};
RemoteInspectorProtocolHandler::RemoteInspectorProtocolHandler(WebKitWebContext* context)
: m_context(context)
{
webkit_web_context_register_uri_scheme(context, "inspector", [](WebKitURISchemeRequest* request, gpointer userData) {
static_cast<RemoteInspectorProtocolHandler*>(userData)->handleRequest(request);
}, this, nullptr);
}
RemoteInspectorProtocolHandler::~RemoteInspectorProtocolHandler()
{
for (auto* webView : m_webViews)
g_object_weak_unref(G_OBJECT(webView), reinterpret_cast<GWeakNotify>(webViewDestroyed), this);
for (auto* userContentManager : m_userContentManagers) {
webkitUserContentManagerGetUserContentControllerProxy(userContentManager)->removeUserMessageHandlerForName("inspector", API::UserContentWorld::normalWorld());
g_object_weak_unref(G_OBJECT(userContentManager), reinterpret_cast<GWeakNotify>(userContentManagerDestroyed), this);
}
}
void RemoteInspectorProtocolHandler::webViewDestroyed(RemoteInspectorProtocolHandler* inspectorProtocolHandler, WebKitWebView* webView)
{
inspectorProtocolHandler->m_webViews.remove(webView);
}
void RemoteInspectorProtocolHandler::userContentManagerDestroyed(RemoteInspectorProtocolHandler* inspectorProtocolHandler, WebKitUserContentManager* userContentManager)
{
inspectorProtocolHandler->m_userContentManagers.remove(userContentManager);
}
void RemoteInspectorProtocolHandler::handleRequest(WebKitURISchemeRequest* request)
{
URL requestURL = URL(ParsedURLString, webkit_uri_scheme_request_get_uri(request));
if (!requestURL.port()) {
GUniquePtr<GError> error(g_error_new_literal(WEBKIT_POLICY_ERROR, WEBKIT_POLICY_ERROR_CANNOT_SHOW_URI, "Cannot show inspector URL: no port provided"));
webkit_uri_scheme_request_finish_error(request, error.get());
}
auto* webView = webkit_uri_scheme_request_get_web_view(request);
ASSERT(webView);
auto webViewResult = m_webViews.add(webView);
if (webViewResult.isNewEntry)
g_object_weak_ref(G_OBJECT(webView), reinterpret_cast<GWeakNotify>(webViewDestroyed), this);
auto* userContentManager = webkit_web_view_get_user_content_manager(webView);
auto userContentManagerResult = m_userContentManagers.add(userContentManager);
if (userContentManagerResult.isNewEntry) {
auto handler = WebScriptMessageHandler::create(std::make_unique<ScriptMessageClient>(*this), "inspector", API::UserContentWorld::normalWorld());
webkitUserContentManagerGetUserContentControllerProxy(userContentManager)->addUserScriptMessageHandler(handler.get());
g_object_weak_ref(G_OBJECT(userContentManager), reinterpret_cast<GWeakNotify>(userContentManagerDestroyed), this);
}
auto* client = m_inspectorClients.ensure(requestURL.hostAndPort(), [this, &requestURL] {
return std::make_unique<RemoteInspectorClient>(requestURL.host().utf8().data(), requestURL.port().value(), *this);
}).iterator->value.get();
GString* html = g_string_new(
"<html><head><title>Remote inspector</title>"
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />"
"<style>"
" h1 { color: #babdb6; text-shadow: 0 1px 0 white; margin-bottom: 0; }"
" html { font-family: menu; font-size: 11pt; color: #2e3436; padding: 20px 20px 0 20px; background-color: #f6f6f4; "
" background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #eeeeec), color-stop(1, #f6f6f4));"
" background-size: 100% 5em; background-repeat: no-repeat; }"
" table { width: 100%; border-collapse: collapse; }"
" table, td { border: 1px solid #d3d7cf; border-left: none; border-right: none; }"
" p { margin-bottom: 30px; }"
" td { padding: 15px; }"
" td.data { width: 200px; }"
" .targetname { font-weight: bold; }"
" .targeturl { color: #babdb6; }"
" td.input { width: 64px; }"
" input { width: 100%; padding: 8px; }"
"</style>"
"</head><body><h1>Inspectable targets</h1>");
if (client->targets().isEmpty())
g_string_append(html, "<p>No targets found</p>");
else {
g_string_append(html, "<table>");
for (auto connectionID : client->targets().keys()) {
for (auto& target : client->targets().get(connectionID)) {
g_string_append_printf(html,
"<tbody><tr>"
"<td class=\"data\"><div class=\"targetname\">%s</div><div class=\"targeturl\">%s</div></td>"
"<td class=\"input\"><input type=\"button\" value=\"Inspect\" onclick=\"window.webkit.messageHandlers.inspector.postMessage('%" G_GUINT64_FORMAT ":%" G_GUINT64_FORMAT "');\"></td>"
"</tr></tbody>", target.name.data(), target.url.data(), connectionID, target.id);
}
}
g_string_append(html, "</table>");
}
g_string_append(html, "</body></html>");
gsize streamLength = html->len;
GRefPtr<GInputStream> stream = adoptGRef(g_memory_input_stream_new_from_data(g_string_free(html, FALSE), streamLength, g_free));
webkit_uri_scheme_request_finish(request, stream.get(), streamLength, "text/html");
}
void RemoteInspectorProtocolHandler::inspect(const String& hostAndPort, uint64_t connectionID, uint64_t tatgetID)
{
if (auto* client = m_inspectorClients.get(hostAndPort))
client->inspect(connectionID, tatgetID);
}
void RemoteInspectorProtocolHandler::targetListChanged(RemoteInspectorClient& client)
{
Vector<WebKitWebView*, 4> webViewsToRemove;
for (auto* webView : m_webViews) {
if (webkit_web_view_is_loading(webView))
continue;
URL webViewURL = URL(ParsedURLString, webkit_web_view_get_uri(webView));
auto clientForWebView = m_inspectorClients.get(webViewURL.hostAndPort());
if (!clientForWebView) {
// This view is not showing a inspector view anymore.
webViewsToRemove.append(webView);
} else if (clientForWebView == &client)
webkit_web_view_reload(webView);
}
for (auto* webView : webViewsToRemove) {
g_object_weak_unref(G_OBJECT(webView), reinterpret_cast<GWeakNotify>(webViewDestroyed), this);
m_webViews.remove(webView);
}
}
void RemoteInspectorProtocolHandler::connectionClosed(RemoteInspectorClient& client)
{
targetListChanged(client);
m_inspectorClients.remove(client.hostAndPort());
}
} // namespace WebKit
#endif // ENABLE(REMOTE_INSPECTOR)
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