1 files changed, 161 insertions, 0 deletions
diff --git a/toolkit/components/remote/nsXRemoteServer.cpp b/toolkit/components/remote/nsXRemoteServer.cpp
new file mode 100644
index 0000000000..1f97b18e20
--- /dev/null
+++ b/toolkit/components/remote/nsXRemoteServer.cpp
@@ -0,0 +1,161 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=2:tabstop=8:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ArrayUtils.h"
+
+#include "nsXRemoteServer.h"
+#include "nsCOMPtr.h"
+#include "nsICommandLine.h"
+
+#include "nsIWidget.h"
+#include "nsAppShellCID.h"
+#include "nsPIDOMWindow.h"
+#include "mozilla/X11Util.h"
+
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "prenv.h"
+#include "nsCRT.h"
+
+#include "nsXULAppAPI.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+
+using namespace mozilla;
+
+#define MOZILLA_VERSION_PROP "_MOZILLA_VERSION"
+#define MOZILLA_LOCK_PROP "_MOZILLA_LOCK"
+#define MOZILLA_RESPONSE_PROP "_MOZILLA_RESPONSE"
+#define MOZILLA_USER_PROP "_MOZILLA_USER"
+#define MOZILLA_PROFILE_PROP "_MOZILLA_PROFILE"
+#define MOZILLA_PROGRAM_PROP "_MOZILLA_PROGRAM"
+#define MOZILLA_COMMANDLINE_PROP "_MOZILLA_COMMANDLINE"
+
+const unsigned char kRemoteVersion[] = "5.1";
+
+// Minimize the roundtrips to the X server by getting all the atoms at once
+static const char* XAtomNames[] = {
+    MOZILLA_VERSION_PROP,    MOZILLA_LOCK_PROP,    MOZILLA_RESPONSE_PROP,
+    MOZILLA_USER_PROP,       MOZILLA_PROFILE_PROP, MOZILLA_PROGRAM_PROP,
+    MOZILLA_COMMANDLINE_PROP};
+static Atom XAtoms[MOZ_ARRAY_LENGTH(XAtomNames)];
+
+Atom nsXRemoteServer::sMozVersionAtom;
+Atom nsXRemoteServer::sMozLockAtom;
+Atom nsXRemoteServer::sMozResponseAtom;
+Atom nsXRemoteServer::sMozUserAtom;
+Atom nsXRemoteServer::sMozProfileAtom;
+Atom nsXRemoteServer::sMozProgramAtom;
+Atom nsXRemoteServer::sMozCommandLineAtom;
+
+nsXRemoteServer::nsXRemoteServer() = default;
+
+void nsXRemoteServer::XRemoteBaseStartup(const char* aAppName,
+                                         const char* aProfileName) {
+  EnsureAtoms();
+
+  mAppName = aAppName;
+  ToLowerCase(mAppName);
+
+  mProfileName = aProfileName;
+}
+
+void nsXRemoteServer::HandleCommandsFor(Window aWindowId) {
+  // set our version
+  XChangeProperty(mozilla::DefaultXDisplay(), aWindowId, sMozVersionAtom,
+                  XA_STRING, 8, PropModeReplace, kRemoteVersion,
+                  sizeof(kRemoteVersion) - 1);
+
+  // get our username
+  unsigned char* logname;
+  logname = (unsigned char*)PR_GetEnv("LOGNAME");
+  if (logname) {
+    // set the property on the window if it's available
+    XChangeProperty(mozilla::DefaultXDisplay(), aWindowId, sMozUserAtom,
+                    XA_STRING, 8, PropModeReplace, logname,
+                    strlen((char*)logname));
+  }
+
+  XChangeProperty(mozilla::DefaultXDisplay(), aWindowId, sMozProgramAtom,
+                  XA_STRING, 8, PropModeReplace, (unsigned char*)mAppName.get(),
+                  mAppName.Length());
+
+  XChangeProperty(mozilla::DefaultXDisplay(), aWindowId, sMozProfileAtom,
+                  XA_STRING, 8, PropModeReplace,
+                  (unsigned char*)mProfileName.get(), mProfileName.Length());
+}
+
+bool nsXRemoteServer::HandleNewProperty(XID aWindowId, Display* aDisplay,
+                                        Time aEventTime, Atom aChangedAtom) {
+  if (aChangedAtom == sMozCommandLineAtom) {
+    // We got a new command atom.
+    int result;
+    Atom actual_type;
+    int actual_format;
+    unsigned long nitems, bytes_after;
+    char* data = 0;
+
+    result = XGetWindowProperty(aDisplay, aWindowId, aChangedAtom,
+                                0,                      /* long_offset */
+                                (65536 / sizeof(long)), /* long_length */
+                                X11True,        /* atomic delete after */
+                                XA_STRING,      /* req_type */
+                                &actual_type,   /* actual_type return */
+                                &actual_format, /* actual_format_return */
+                                &nitems,        /* nitems_return */
+                                &bytes_after,   /* bytes_after_return */
+                                (unsigned char**)&data); /* prop_return
+                                                            (we only care
+                                                            about the first ) */
+
+    // Failed to get property off the window?
+    if (result != Success) return false;
+
+    // Failed to get the data off the window or it was the wrong type?
+    if (!data || !TO_LITTLE_ENDIAN32(*reinterpret_cast<int32_t*>(data)))
+      return false;
+
+    // cool, we got the property data.
+    const char* response = HandleCommandLine(data, aEventTime);
+
+    // put the property onto the window as the response
+    XChangeProperty(aDisplay, aWindowId, sMozResponseAtom, XA_STRING, 8,
+                    PropModeReplace, (const unsigned char*)response,
+                    strlen(response));
+    XFree(data);
+    return true;
+  }
+
+  if (aChangedAtom == sMozResponseAtom) {
+    // client accepted the response.  party on wayne.
+    return true;
+  }
+
+  else if (aChangedAtom == sMozLockAtom) {
+    // someone locked the window
+    return true;
+  }
+
+  return false;
+}
+
+void nsXRemoteServer::EnsureAtoms(void) {
+  if (sMozVersionAtom) return;
+
+  XInternAtoms(mozilla::DefaultXDisplay(), const_cast<char**>(XAtomNames),
+               ArrayLength(XAtomNames), X11False, XAtoms);
+
+  int i = 0;
+  sMozVersionAtom = XAtoms[i++];
+  sMozLockAtom = XAtoms[i++];
+  sMozResponseAtom = XAtoms[i++];
+  sMozUserAtom = XAtoms[i++];
+  sMozProfileAtom = XAtoms[i++];
+  sMozProgramAtom = XAtoms[i++];
+  sMozCommandLineAtom = XAtoms[i];
+}