[Kimchi-devel] [PATCH] [Kimchi 4/9] Virt-Viewer launcher: virtviewerfile module

[dhbarboza82 at gmail.com]

From: Daniel Henrique Barboza <danielhb at linux.vnet.ibm.com>

This new module contains functions to create virt
viewer files and a new model called VMVirtViewerFileModel
that will return a link to the new generated script
file in the lookup() method.

Signed-off-by: Daniel Henrique Barboza <danielhb at linux.vnet.ibm.com>
---
 model/virtviewerfile.py | 100 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 model/virtviewerfile.py

diff --git a/model/virtviewerfile.py b/model/virtviewerfile.py
new file mode 100644
index 0000000..baccc8a
--- /dev/null
+++ b/model/virtviewerfile.py
@@ -0,0 +1,100 @@
+#
+# Project Kimchi
+#
+# Copyright IBM Corp, 2016
+#
+# 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+#
+
+import cherrypy
+import libvirt
+import os
+
+from wok.config import config as wok_config
+from wok.exception import NotFoundError, OperationFailed
+from wok.plugins.kimchi import config as kimchi_config
+from wok.plugins.kimchi.model.vms import VMModel
+
+
+def write_virt_viewer_file(params):
+    file_template = """\
+[virt-viewer]
+type=%(type)s
+host=%(host)s
+port=%(graphics_port)s
+"""
+    file_contents = file_template % params
+
+    if params.get('graphics_passwd'):
+        file_contents += 'password=%s\n' % params['graphics_passwd']
+
+    try:
+        with open(params.get('path'), 'w') as vv_file:
+            vv_file.write(file_contents)
+    except Exception:
+        raise
+
+
+def _get_request_host():
+    host = cherrypy.request.headers.get('Host')
+    if not host:
+        host = wok_config.get("server", "host")
+    host = host.split(':')[0]
+    return host
+
+
+def create_virt_viewer_file(vm_name, graphics_info):
+    graphics_type = graphics_info[0]
+    graphics_port = graphics_info[2]
+    graphics_passwd = graphics_info[3]
+
+    try:
+        host = _get_request_host()
+
+        default_dir = kimchi_config.get_virtviewerfiles_path()
+        file_path = os.path.join(default_dir, '%s-access.vv' % vm_name)
+
+        file_params = {
+            'type': graphics_type,
+            'graphics_port': graphics_port,
+            'graphics_passwd': graphics_passwd,
+            'host': host,
+            'path': file_path
+        }
+        write_virt_viewer_file(file_params)
+        return file_path
+
+    except Exception as e:
+        raise OperationFailed("KCHVM0084E",
+                              {'name': vm_name}, {'err': e.message})
+
+
+class VMVirtViewerFileModel(object):
+    def __init__(self, **kargs):
+        self.conn = kargs['conn']
+
+    def _check_if_vm_running(self, name):
+        dom = VMModel.get_vm(name, self.conn)
+        d_info = dom.info()
+        if d_info[0] != libvirt.VIR_DOMAIN_RUNNING:
+            raise NotFoundError("KCHVM0083E", {'name': name})
+
+    def lookup(self, name):
+        self._check_if_vm_running(name)
+        graphics_info = VMModel.get_graphics(name, self.conn)
+        file_path = create_virt_viewer_file(name, graphics_info)
+
+        return 'plugins/kimchi/data/virtviewerfiles/%s' %\
+               os.path.basename(file_path)
-- 
2.5.5