360 lines
14 KiB
C++
360 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <config.h>
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#include <sysexits.h>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <thread>
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#include <string.h>
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#include <gtk/gtk.h>
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#include <webkit2/webkit2.h>
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#if !WEBKIT_CHECK_VERSION(2,22,0)
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# include<JavaScriptCore/JavaScript.h>
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#endif
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#include "FakeSocket.hpp"
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#include "Log.hpp"
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#include "COOLWSD.hpp"
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#include "Protocol.hpp"
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#include "Util.hpp"
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#include "gtk.hpp"
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const char *user_name = "Dummy";
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const int SHOW_JS_MAXLEN = 300;
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int coolwsd_server_socket_fd = -1;
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static std::string fileURL;
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static COOLWSD *coolwsd = nullptr;
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static int fakeClientFd;
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static int closeNotificationPipeForForwardingThread[2];
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static WebKitWebView *webView;
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static void send2JS_ready_callback(GObject *source_object,
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GAsyncResult *res,
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gpointer user_data)
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{
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free(user_data);
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}
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static void send2JS(const std::vector<char>& buffer)
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{
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LOG_TRC_NOFILE("Send to JS: " << COOLProtocol::getAbbreviatedMessage(buffer.data(), buffer.size()));
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std::string js;
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// Check if the message is binary. We say that any message that isn't just a single line is
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// "binary" even if that strictly speaking isn't the case; for instance the commandvalues:
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// message has a long bunch of non-binary JSON on multiple lines. But _onMessage() in Socket.js
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// handles it fine even if such a message, too, comes in as an ArrayBuffer. (Look for the
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// "textMsg = String.fromCharCode.apply(null, imgBytes);".)
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const char *newline = (const char *)memchr(buffer.data(), '\n', buffer.size());
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if (newline != nullptr)
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{
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// The data needs to be an ArrayBuffer
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js = "window.TheFakeWebSocket.onmessage({'data': Base64ToArrayBuffer('";
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gchar *base64 = g_base64_encode((const guchar*)buffer.data(), buffer.size());
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js = js + std::string(base64);
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g_free(base64);
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js = js + "')});";
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}
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else
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{
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const unsigned char *ubufp = (const unsigned char *)buffer.data();
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std::vector<char> data;
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for (int i = 0; i < buffer.size(); i++)
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{
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if (ubufp[i] < ' ' || ubufp[i] >= 0x80 || ubufp[i] == '\'' || ubufp[i] == '\\')
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{
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data.push_back('\\');
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data.push_back('x');
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data.push_back("0123456789abcdef"[(ubufp[i] >> 4) & 0x0F]);
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data.push_back("0123456789abcdef"[ubufp[i] & 0x0F]);
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}
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else
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{
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data.push_back(ubufp[i]);
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}
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}
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js = "window.TheFakeWebSocket.onmessage({'data': '";
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js = js + std::string(data.data(), data.size());
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js = js + "'});";
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}
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std::string subjs = js.substr(0, std::min(std::string::size_type(SHOW_JS_MAXLEN), js.length()));
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if (js.length() > SHOW_JS_MAXLEN)
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subjs += "...";
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LOG_TRC_NOFILE( "Evaluating JavaScript: " << subjs);
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char *jscopy = strdup(js.c_str());
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g_idle_add([](gpointer data)
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{
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char *jscopy = (char*) data;
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webkit_web_view_run_javascript(webView, jscopy, nullptr, send2JS_ready_callback, jscopy);
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return FALSE;
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}, jscopy);
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}
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static char *js_result_as_gstring(WebKitJavascriptResult *js_result)
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{
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#if WEBKIT_CHECK_VERSION(2,22,0) // unclear when this API changed ...
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JSCValue *value = webkit_javascript_result_get_js_value(js_result);
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if (jsc_value_is_string(value))
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return jsc_value_to_string(value);
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else
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return nullptr;
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#else // older Webkits
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JSValueRef value = webkit_javascript_result_get_value(js_result);
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JSContextRef ctx = webkit_javascript_result_get_global_context(js_result);
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if (JSValueIsString(ctx, value))
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{
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const JSStringRef js_str = JSValueToStringCopy(ctx, value, nullptr);
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size_t gstring_max = JSStringGetMaximumUTF8CStringSize(js_str);
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char *gstring = (char *)g_malloc(gstring_max);
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if (gstring)
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JSStringGetUTF8CString(js_str, gstring, gstring_max);
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else
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LOG_TRC_NOFILE("No string");
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JSStringRelease(js_str);
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return gstring;
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}
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else
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LOG_TRC_NOFILE("Unexpected object type " << JSValueGetType(ctx, value));
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return nullptr;
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#endif
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}
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static void handle_message(const char * type, WebKitJavascriptResult *js_result)
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{
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gchar *string_value = js_result_as_gstring(js_result);
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if (string_value)
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LOG_TRC_NOFILE("From JS: " << type << ": " << string_value);
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else
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LOG_TRC_NOFILE("From JS: " << type << ": some object");
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g_free(string_value);
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}
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static void handle_cool_message(WebKitUserContentManager *manager,
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WebKitJavascriptResult *js_result,
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gpointer user_data)
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{
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gchar *string_value = js_result_as_gstring(js_result);
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if (string_value)
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{
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LOG_TRC_NOFILE("From JS: cool: " << string_value);
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if (strcmp(string_value, "HULLO") == 0)
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{
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// Now we know that the JS has started completely
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// Contact the permanently (during app lifetime) listening COOLWSD server
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// "public" socket
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assert(coolwsd_server_socket_fd != -1);
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int rc = fakeSocketConnect(fakeClientFd, coolwsd_server_socket_fd);
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assert(rc != -1);
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// Create a socket pair to notify the below thread when the document has been closed
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fakeSocketPipe2(closeNotificationPipeForForwardingThread);
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// Start another thread to read responses and forward them to the JavaScript
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std::thread([]
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{
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Util::setThreadName("app2js");
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while (true)
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{
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struct pollfd pollfd[2];
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pollfd[0].fd = fakeClientFd;
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pollfd[0].events = POLLIN;
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pollfd[1].fd = closeNotificationPipeForForwardingThread[1];
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pollfd[1].events = POLLIN;
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if (fakeSocketPoll(pollfd, 2, -1) > 0)
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{
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if (pollfd[1].revents == POLLIN)
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{
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// The code below handling the "BYE" fake Websocket
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// message has closed the other end of the
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// closeNotificationPipeForForwardingThread. Let's close
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// the other end too just for cleanliness, even if a
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// FakeSocket as such is not a system resource so nothing
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// is saved by closing it.
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fakeSocketClose(closeNotificationPipeForForwardingThread[1]);
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// Close our end of the fake socket connection to the
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// ClientSession thread, so that it terminates
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fakeSocketClose(fakeClientFd);
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return;
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}
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if (pollfd[0].revents == POLLIN)
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{
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int n = fakeSocketAvailableDataLength(fakeClientFd);
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if (n == 0)
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return;
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std::vector<char> buf(n);
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n = fakeSocketRead(fakeClientFd, buf.data(), n);
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send2JS(buf);
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}
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}
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else
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break;
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}
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assert(false);
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}).detach();
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// First we simply send it the URL. This corresponds to the GET request with Upgrade to
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// WebSocket.
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LOG_TRC_NOFILE("Actually sending to Online:" << fileURL);
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// Must do this in a thread, too, so that we can return to the GTK+ main loop
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std::thread([]
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{
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struct pollfd pollfd;
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pollfd.fd = fakeClientFd;
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pollfd.events = POLLOUT;
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fakeSocketPoll(&pollfd, 1, -1);
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fakeSocketWrite(fakeClientFd, fileURL.c_str(), fileURL.size());
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}).detach();
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}
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else if (strcmp(string_value, "BYE") == 0)
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{
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LOG_TRC_NOFILE("Document window terminating on JavaScript side. Closing our end of the socket.");
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// Close one end of the socket pair, that will wake up the forwarding thread above
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fakeSocketClose(closeNotificationPipeForForwardingThread[0]);
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// ???
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}
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else
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{
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// As above
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char *string_copy = strdup(string_value);
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std::thread([=]
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{
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struct pollfd pollfd;
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pollfd.fd = fakeClientFd;
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pollfd.events = POLLOUT;
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fakeSocketPoll(&pollfd, 1, -1);
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fakeSocketWrite(fakeClientFd, string_copy, strlen(string_copy));
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free(string_copy);
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}).detach();
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}
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g_free(string_value);
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}
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else
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LOG_TRC_NOFILE("From JS: cool: some object");
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}
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static void handle_debug_message(WebKitUserContentManager *manager,
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WebKitJavascriptResult *js_result,
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gpointer user_data)
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{
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handle_message("debug", js_result);
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}
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static void handle_error_message(WebKitUserContentManager *manager,
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WebKitJavascriptResult *js_result,
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gpointer user_data)
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{
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handle_message("error", js_result);
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}
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int main(int argc, char* argv[])
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{
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if (argc != 2)
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{
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fprintf(stderr, "Usage: %s document\n", argv[0]);
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_exit(1); // avoid log cleanup
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}
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Log::initialize("Mobile", "trace", false, false, {});
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Util::setThreadName("main");
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fakeSocketSetLoggingCallback([](const std::string& line)
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{
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LOG_TRC_NOFILE(line);
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});
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std::thread([]
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{
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assert(coolwsd == nullptr);
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char *argv[2];
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argv[0] = strdup("mobile");
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argv[1] = nullptr;
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Util::setThreadName("app");
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while (true)
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{
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coolwsd = new COOLWSD();
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coolwsd->run(1, argv);
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delete coolwsd;
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LOG_TRC("One run of COOLWSD completed");
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}
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}).detach();
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fakeClientFd = fakeSocketSocket();
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gtk_init(&argc, &argv);
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GtkWidget *mainWindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size(GTK_WINDOW(mainWindow), 1000, 800);
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g_signal_connect(mainWindow, "destroy", G_CALLBACK(gtk_main_quit), nullptr);
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WebKitUserContentManager *userContentManager = WEBKIT_USER_CONTENT_MANAGER(webkit_user_content_manager_new());
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g_signal_connect(userContentManager, "script-message-received::debug", G_CALLBACK(handle_debug_message), nullptr);
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g_signal_connect(userContentManager, "script-message-received::cool", G_CALLBACK(handle_cool_message), nullptr);
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g_signal_connect(userContentManager, "script-message-received::error", G_CALLBACK(handle_error_message), nullptr);
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webkit_user_content_manager_register_script_message_handler(userContentManager, "debug");
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webkit_user_content_manager_register_script_message_handler(userContentManager, "cool");
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webkit_user_content_manager_register_script_message_handler(userContentManager, "error");
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webView = WEBKIT_WEB_VIEW(webkit_web_view_new_with_user_content_manager(userContentManager));
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gtk_container_add(GTK_CONTAINER(mainWindow), GTK_WIDGET(webView));
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fileURL = "file://" + FileUtil::realpath(argv[1]);
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std::string urlAndQuery =
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"file://" TOPSRCDIR "/browser/dist/cool.html"
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"?file_path=" + fileURL +
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"&closebutton=1"
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"&permission=edit"
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"&lang=en"
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"&userinterfacemode=notebookbar";
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webkit_web_view_load_uri(webView, urlAndQuery.c_str());
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if (true) // Set this to false to disable developer console.
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{
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// Enable the developer extras
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WebKitSettings *settings = webkit_web_view_get_settings (WEBKIT_WEB_VIEW(webView));
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g_object_set (G_OBJECT(settings), "enable-developer-extras", TRUE, NULL);
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// Show the inspector
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WebKitWebInspector *inspector = webkit_web_view_get_inspector (WEBKIT_WEB_VIEW(webView));
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webkit_web_inspector_show (WEBKIT_WEB_INSPECTOR(inspector));
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}
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gtk_widget_grab_focus(GTK_WIDGET(webView));
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gtk_widget_show_all(mainWindow);
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gtk_main();
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return 0;
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}
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