appmenus: fallback hardcoded appmenus for HVM with qrexec installed

If VM didn't returned any appmenus data, the service is most likely not
available there. Actually it hasn't been written yet.

appmenus-files/hvm/cmd.desktop

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Terminal=false
+Name=Command Prompt
+Comment=Use the command line
+Categories=GNOME;GTK;Utility;TerminalEmulator;System;
+Exec=cmd /c start cmd

appmenus-files/hvm/explorer.desktop

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Terminal=false
+Name=Libraries
+Comment=Browse files
+Categories=Utility;Core;
+Exec=explorer

appmenus-files/hvm/internet-explorer.desktop

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Terminal=false
+Name=Internet Explorer
+Comment=Browse the Web
+Categories=Network;WebBrowser;
+Exec=C:\Program Files\Internet Explorer\iexplore.exe

appmenus-scripts/qubes-receive-appmenus

@@ -27,7 +27,8 @@ import sys
 import fnmatch
 import shutil
 from optparse import OptionParser
-from qubes.qubes import QubesVmCollection,QubesException
+from qubes.qubes import QubesVmCollection,QubesException,system_path
+from qubes.qubes import QubesHVm
 
 # fields required to be present (and verified) in retrieved desktop file
 required_fields = [ "Name", "Exec" ]
@@ -43,9 +44,15 @@ fields_regexp = {
     "GenericName": std_re,
     "Comment": std_re,
     "Categories": re.compile(r"^[a-zA-Z0-9/.; -]*$"),
-    "Exec": re.compile(r"^[a-zA-Z0-9%>/:.= -]*$"),
+    "Exec": re.compile(r"^[a-zA-Z0-9%>/\\:.= -]*$"),
 }
 
+def fallback_hvm_appmenulist():
+    p = subprocess.Popen(["grep",  "-rH", "=", "/usr/share/qubes-appmenus/hvm"],
+            stdout=subprocess.PIPE)
+    (stdout, stderr) = p.communicate()
+    return stdout.splitlines()
+
 def get_appmenus(vm):
     global appmenus_line_count
     global appmenus_line_size
@@ -69,7 +76,10 @@ def get_appmenus(vm):
             appmenus_line_count -= 1
         p.wait()
         if p.returncode != 0:
-            raise QubesException("Error getting application list")
+            if isinstance(vm, QubesHVm):
+                untrusted_appmenulist = fallback_hvm_appmenulist()
+            else:
+                raise QubesException("Error getting application list")
         if appmenus_line_count == 0:
             raise QubesException("Line count limit exceeded")
 
@@ -144,6 +154,8 @@ def main():
     parser.add_option ("-v", "--verbose", action="store_true", dest="verbose", default=False)
     parser.add_option ("--force-root", action="store_true", dest="force_root", default=False,
                        help="Force to run, even with root privileges")
+    parser.add_option ("--force-rpc", action="store_true", dest="force_rpc", default=False,
+                       help="Force to start a new RPC call, even if called from existing one")
 
     (options, args) = parser.parse_args ()
     if (len (args) != 1) and env_vmname is None:
@@ -181,7 +193,7 @@ def main():
         exit(1)
 
     new_appmenus = {}
-    if env_vmname is None:
+    if env_vmname is None or options.force_rpc:
         new_appmenus = get_appmenus(vm)
     else:
         options.verbose = False
@@ -205,7 +217,7 @@ def main():
                 print >> sys.stderr, "---> Creating {0}".format(appmenu_file)
         create_template(vm.appmenus_templates_dir + '/' + appmenu_file, new_appmenus[appmenu_file])
 
-    # Delete appmenus of remove applications
+    # Delete appmenus of removed applications
     if options.verbose:
         print >> sys.stderr, "--> Cleaning old files"
     for appmenu_file in os.listdir(vm.appmenus_templates_dir):
@@ -217,4 +229,9 @@ def main():
                 print >> sys.stderr, "---> Removing {0}".format(appmenu_file)
             os.unlink(vm.appmenus_templates_dir + '/' + appmenu_file)
 
+    if isinstance(vm, QubesHVm):
+        if not os.path.exists(os.path.join(vm.appmenus_templates_dir,
+                    os.path.basename(system_path['appmenu_start_hvm_template']))):
+            shutil.copy(system_path['appmenu_start_hvm_template'], vm.appmenus_templates_dir)
+
 main()

rpm_spec/core-dom0-linux.spec

@@ -88,7 +88,7 @@ cp appmenus-scripts/qubes.SyncAppMenus $RPM_BUILD_ROOT/etc/qubes-rpc/
 cp appmenus-scripts/qubes.SyncAppMenus.policy $RPM_BUILD_ROOT/etc/qubes-rpc/policy/qubes.SyncAppMenus
 
 mkdir -p $RPM_BUILD_ROOT/usr/share/qubes-appmenus/
-cp appmenus-files/* $RPM_BUILD_ROOT/usr/share/qubes-appmenus/
+cp -r appmenus-files/* $RPM_BUILD_ROOT/usr/share/qubes-appmenus/
 
 ### Dom0 updates
 install -D dom0-updates/qubes-dom0-updates.cron $RPM_BUILD_ROOT/etc/cron.daily/qubes-dom0-updates.cron
@@ -208,6 +208,7 @@ mv -f /lib/udev/rules.d/69-xorg-vmmouse.rules /var/lib/qubes/removed-udev-script
 /usr/share/qubes-appmenus/qubes-start.desktop
 /usr/share/qubes-appmenus/qubes-templatevm.directory.template
 /usr/share/qubes-appmenus/qubes-vm.directory.template
+/usr/share/qubes-appmenus/hvm
 /usr/share/qubes/icons/*.png
 /usr/bin/qvm-sync-appmenus
 # Dom0 updates