mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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388 lines
12 KiB
C++
388 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=8:
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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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#include "mozilla/Util.h"
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#include "nsXRemoteService.h"
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#include "nsIObserverService.h"
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#include "nsCOMPtr.h"
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#include "nsIServiceManager.h"
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#include "nsICommandLineRunner.h"
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#include "nsICommandLine.h"
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#include "nsIBaseWindow.h"
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#include "nsIDocShell.h"
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#include "nsIFile.h"
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#include "nsIServiceManager.h"
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#include "nsIWeakReference.h"
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#include "nsIWidget.h"
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#include "nsIAppShellService.h"
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#include "nsAppShellCID.h"
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#include "nsPIDOMWindow.h"
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#include "mozilla/X11Util.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "prprf.h"
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#include "prenv.h"
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#include "nsCRT.h"
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#include "nsXULAppAPI.h"
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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using namespace mozilla;
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#define MOZILLA_VERSION_PROP "_MOZILLA_VERSION"
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#define MOZILLA_LOCK_PROP "_MOZILLA_LOCK"
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#define MOZILLA_COMMAND_PROP "_MOZILLA_COMMAND"
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#define MOZILLA_RESPONSE_PROP "_MOZILLA_RESPONSE"
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#define MOZILLA_USER_PROP "_MOZILLA_USER"
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#define MOZILLA_PROFILE_PROP "_MOZILLA_PROFILE"
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#define MOZILLA_PROGRAM_PROP "_MOZILLA_PROGRAM"
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#define MOZILLA_COMMANDLINE_PROP "_MOZILLA_COMMANDLINE"
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const unsigned char kRemoteVersion[] = "5.1";
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#ifdef IS_BIG_ENDIAN
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#define TO_LITTLE_ENDIAN32(x) \
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((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
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(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
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#else
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#define TO_LITTLE_ENDIAN32(x) (x)
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#endif
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// Minimize the roundtrips to the X server by getting all the atoms at once
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static char *XAtomNames[] = {
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MOZILLA_VERSION_PROP,
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MOZILLA_LOCK_PROP,
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MOZILLA_COMMAND_PROP,
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MOZILLA_RESPONSE_PROP,
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MOZILLA_USER_PROP,
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MOZILLA_PROFILE_PROP,
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MOZILLA_PROGRAM_PROP,
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MOZILLA_COMMANDLINE_PROP
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};
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static Atom XAtoms[NS_ARRAY_LENGTH(XAtomNames)];
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Atom nsXRemoteService::sMozVersionAtom;
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Atom nsXRemoteService::sMozLockAtom;
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Atom nsXRemoteService::sMozCommandAtom;
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Atom nsXRemoteService::sMozResponseAtom;
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Atom nsXRemoteService::sMozUserAtom;
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Atom nsXRemoteService::sMozProfileAtom;
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Atom nsXRemoteService::sMozProgramAtom;
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Atom nsXRemoteService::sMozCommandLineAtom;
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nsXRemoteService * nsXRemoteService::sRemoteImplementation = 0;
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static bool
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FindExtensionParameterInCommand(const char* aParameterName,
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const nsACString& aCommand,
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char aSeparator,
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nsACString* aValue)
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{
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nsAutoCString searchFor;
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searchFor.Append(aSeparator);
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searchFor.Append(aParameterName);
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searchFor.Append('=');
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nsACString::const_iterator start, end;
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aCommand.BeginReading(start);
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aCommand.EndReading(end);
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if (!FindInReadable(searchFor, start, end))
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return false;
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nsACString::const_iterator charStart, charEnd;
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charStart = end;
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aCommand.EndReading(charEnd);
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nsACString::const_iterator idStart = charStart, idEnd;
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if (FindCharInReadable(aSeparator, charStart, charEnd)) {
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idEnd = charStart;
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} else {
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idEnd = charEnd;
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}
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*aValue = nsDependentCSubstring(idStart, idEnd);
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return true;
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}
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nsXRemoteService::nsXRemoteService()
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{
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}
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void
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nsXRemoteService::XRemoteBaseStartup(const char *aAppName, const char *aProfileName)
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{
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EnsureAtoms();
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mAppName = aAppName;
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ToLowerCase(mAppName);
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mProfileName = aProfileName;
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nsCOMPtr<nsIObserverService> obs(do_GetService("@mozilla.org/observer-service;1"));
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if (obs) {
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obs->AddObserver(this, "xpcom-shutdown", false);
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obs->AddObserver(this, "quit-application", false);
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}
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}
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void
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nsXRemoteService::HandleCommandsFor(Window aWindowId)
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{
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// set our version
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XChangeProperty(mozilla::DefaultXDisplay(), aWindowId, sMozVersionAtom, XA_STRING,
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8, PropModeReplace, kRemoteVersion, sizeof(kRemoteVersion) - 1);
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// get our username
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unsigned char *logname;
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logname = (unsigned char*) PR_GetEnv("LOGNAME");
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if (logname) {
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// set the property on the window if it's available
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XChangeProperty(mozilla::DefaultXDisplay(), aWindowId, sMozUserAtom, XA_STRING,
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8, PropModeReplace, logname, strlen((char*) logname));
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}
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XChangeProperty(mozilla::DefaultXDisplay(), aWindowId, sMozProgramAtom, XA_STRING,
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8, PropModeReplace, (unsigned char*) mAppName.get(), mAppName.Length());
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if (!mProfileName.IsEmpty()) {
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XChangeProperty(mozilla::DefaultXDisplay(),
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aWindowId, sMozProfileAtom, XA_STRING,
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8, PropModeReplace,
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(unsigned char*) mProfileName.get(), mProfileName.Length());
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}
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}
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NS_IMETHODIMP
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nsXRemoteService::Observe(nsISupports* aSubject,
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const char *aTopic,
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const PRUnichar *aData)
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{
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// This can be xpcom-shutdown or quit-application, but it's the same either
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// way.
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Shutdown();
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return NS_OK;
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}
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bool
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nsXRemoteService::HandleNewProperty(XID aWindowId, Display* aDisplay,
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Time aEventTime,
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Atom aChangedAtom,
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nsIWeakReference* aDomWindow)
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{
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nsCOMPtr<nsIDOMWindow> window (do_QueryReferent(aDomWindow));
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if (aChangedAtom == sMozCommandAtom || aChangedAtom == sMozCommandLineAtom) {
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// We got a new command atom.
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int result;
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Atom actual_type;
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int actual_format;
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unsigned long nitems, bytes_after;
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char *data = 0;
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result = XGetWindowProperty (aDisplay,
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aWindowId,
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aChangedAtom,
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0, /* long_offset */
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(65536 / sizeof (long)), /* long_length */
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True, /* atomic delete after */
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XA_STRING, /* req_type */
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&actual_type, /* actual_type return */
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&actual_format, /* actual_format_return */
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&nitems, /* nitems_return */
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&bytes_after, /* bytes_after_return */
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(unsigned char **)&data); /* prop_return
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(we only care
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about the first ) */
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// Failed to get property off the window?
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if (result != Success)
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return false;
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// Failed to get the data off the window or it was the wrong type?
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if (!data || !TO_LITTLE_ENDIAN32(*reinterpret_cast<int32_t*>(data)))
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return false;
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// cool, we got the property data.
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const char *response = NULL;
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if (aChangedAtom == sMozCommandAtom)
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response = HandleCommand(data, window, aEventTime);
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else if (aChangedAtom == sMozCommandLineAtom)
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response = HandleCommandLine(data, window, aEventTime);
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// put the property onto the window as the response
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XChangeProperty (aDisplay, aWindowId,
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sMozResponseAtom, XA_STRING,
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8, PropModeReplace,
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(const unsigned char *)response,
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strlen (response));
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XFree(data);
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return true;
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}
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else if (aChangedAtom == sMozResponseAtom) {
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// client accepted the response. party on wayne.
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return true;
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}
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else if (aChangedAtom == sMozLockAtom) {
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// someone locked the window
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return true;
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}
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return false;
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}
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const char*
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nsXRemoteService::HandleCommand(char* aCommand, nsIDOMWindow* aWindow,
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uint32_t aTimestamp)
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{
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nsresult rv;
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nsCOMPtr<nsICommandLineRunner> cmdline
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(do_CreateInstance("@mozilla.org/toolkit/command-line;1", &rv));
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if (NS_FAILED(rv))
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return "509 internal error";
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// 1) Make sure that it looks remotely valid with parens
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// 2) Treat ping() immediately and specially
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nsAutoCString command(aCommand);
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int32_t p1, p2;
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p1 = command.FindChar('(');
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p2 = command.FindChar(')');
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if (p1 == kNotFound || p2 == kNotFound || p1 == 0 || p2 < p1) {
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return "500 command not parseable";
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}
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command.Truncate(p1);
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command.Trim(" ", true, true);
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ToLowerCase(command);
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if (!command.EqualsLiteral("ping")) {
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nsAutoCString desktopStartupID;
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nsDependentCString cmd(aCommand);
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FindExtensionParameterInCommand("DESKTOP_STARTUP_ID",
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cmd, '\n',
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&desktopStartupID);
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char* argv[3] = {"dummyappname", "-remote", aCommand};
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rv = cmdline->Init(3, argv, nullptr, nsICommandLine::STATE_REMOTE_EXPLICIT);
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if (NS_FAILED(rv))
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return "509 internal error";
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if (aWindow)
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cmdline->SetWindowContext(aWindow);
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if (sRemoteImplementation)
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sRemoteImplementation->SetDesktopStartupIDOrTimestamp(desktopStartupID, aTimestamp);
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rv = cmdline->Run();
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if (NS_ERROR_ABORT == rv)
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return "500 command not parseable";
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if (NS_FAILED(rv))
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return "509 internal error";
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}
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return "200 executed command";
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}
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const char*
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nsXRemoteService::HandleCommandLine(char* aBuffer, nsIDOMWindow* aWindow,
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uint32_t aTimestamp)
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{
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nsresult rv;
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nsCOMPtr<nsICommandLineRunner> cmdline
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(do_CreateInstance("@mozilla.org/toolkit/command-line;1", &rv));
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if (NS_FAILED(rv))
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return "509 internal error";
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// the commandline property is constructed as an array of int32_t
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// followed by a series of null-terminated strings:
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//
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// [argc][offsetargv0][offsetargv1...]<workingdir>\0<argv[0]>\0argv[1]...\0
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// (offset is from the beginning of the buffer)
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int32_t argc = TO_LITTLE_ENDIAN32(*reinterpret_cast<int32_t*>(aBuffer));
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char *wd = aBuffer + ((argc + 1) * sizeof(int32_t));
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nsCOMPtr<nsIFile> lf;
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rv = NS_NewNativeLocalFile(nsDependentCString(wd), true,
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getter_AddRefs(lf));
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if (NS_FAILED(rv))
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return "509 internal error";
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nsAutoCString desktopStartupID;
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char **argv = (char**) malloc(sizeof(char*) * argc);
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if (!argv) return "509 internal error";
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int32_t *offset = reinterpret_cast<int32_t*>(aBuffer) + 1;
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for (int i = 0; i < argc; ++i) {
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argv[i] = aBuffer + TO_LITTLE_ENDIAN32(offset[i]);
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if (i == 0) {
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nsDependentCString cmd(argv[0]);
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FindExtensionParameterInCommand("DESKTOP_STARTUP_ID",
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cmd, ' ',
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&desktopStartupID);
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}
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}
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rv = cmdline->Init(argc, argv, lf, nsICommandLine::STATE_REMOTE_AUTO);
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free (argv);
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if (NS_FAILED(rv)) {
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return "509 internal error";
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}
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if (aWindow)
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cmdline->SetWindowContext(aWindow);
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if (sRemoteImplementation)
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sRemoteImplementation->SetDesktopStartupIDOrTimestamp(desktopStartupID, aTimestamp);
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rv = cmdline->Run();
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if (NS_ERROR_ABORT == rv)
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return "500 command not parseable";
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if (NS_FAILED(rv))
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return "509 internal error";
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return "200 executed command";
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}
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void
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nsXRemoteService::EnsureAtoms(void)
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{
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if (sMozVersionAtom)
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return;
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XInternAtoms(mozilla::DefaultXDisplay(), XAtomNames, ArrayLength(XAtomNames),
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False, XAtoms);
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int i = 0;
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sMozVersionAtom = XAtoms[i++];
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sMozLockAtom = XAtoms[i++];
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sMozCommandAtom = XAtoms[i++];
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sMozResponseAtom = XAtoms[i++];
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sMozUserAtom = XAtoms[i++];
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sMozProfileAtom = XAtoms[i++];
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sMozProgramAtom = XAtoms[i++];
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sMozCommandLineAtom = XAtoms[i++];
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}
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