def login_handler(request):
""" HTTP Request handler function for user login / logout requests """
session = ET.Element('session')
if request.POST:
action = request.POST['action']
if action == 'login':
username = request.POST['username']
password = request.POST['password']
user = authenticate(username=username, password=password)
if user is not None and user.is_active:
# Correct password, and the user is marked "active"
login(request, user)
session.text = username
else:
return HttpResponse(Response.error('login', 'Authentication Failed'))
else:
try:
if request.session.session_key is not None and request.session.session_key != '':
session_dir = ServerSettings.session_path(request.session.session_key)
if os.path.exists(session_dir):
logging.debug('Cleaning ' + session_dir)
shutil.rmtree(session_dir)
logout(request)
except:
logging.exception("Failed")
else:
logging.debug('Logout success!!')
return HttpResponse(Response.success(action, 'ok', session))
return HttpResponse(Response.error('unknown', 'Invalid request!!'))
def login_handler(request):
""" HTTP Request handler function for user login / logout requests """
session = ET.Element('session')
if request.POST:
action = request.POST['action']
if action == 'login':
username = request.POST['username']
password = request.POST['password']
user = authenticate(username=username, password=password)
if user is not None and user.is_active:
# Correct password, and the user is marked "active"
login(request, user)
session.text = username
else:
return HttpResponse(Response.error('login', 'Authentication Failed'))
else:
try:
if request.session.session_key is not None and request.session.session_key != '':
session_dir = ServerSettings.session_path(request.session.session_key)
if os.path.exists(session_dir):
logging.debug('Cleaning ' + session_dir)
shutil.rmtree(session_dir)
logout(request)
except Exception as ex:
print(ex.__doc__)
print(ex.message)
logging.debug('Login success')
return HttpResponse(Response.success(action, 'ok', session))
return HttpResponse(Response.error(action, 'Invalid Request'))
def login_handler(request):
""" HTTP Request handler function for user login / logout requests """
if request.POST:
action = request.POST['action']
if action == 'login':
username = request.POST['username']
password = request.POST['password']
user = authenticate(username=username, password=password)
if user is not None and user.is_active:
# Correct password, and the user is marked "active"
login(request, user)
else:
return HttpResponse(Response.error('login', 'Authentication Failed'))
else:
username = ''
try:
if request.session.session_key is not None and request.session.session_key != '':
session_dir = ServerSettings.session_path(request.session.session_key)
if os.path.exists(session_dir):
logger.debug('Cleaning ' + session_dir)
shutil.rmtree(session_dir)
logout(request)
except:
logger.exception("Failed")
else:
logger.debug('Logout success!!')
session = get_session_config(username)
return HttpResponse(Response.success(action, 'ok', session))
return HttpResponse(Response.error('unknown', 'Invalid request!!'))
def commit_files(user, session):
""" Moves compiled yang moudles to user's yang directory """
directory = ServerSettings.session_path(session)
if not os.path.exists(directory):
logging.error('Session storage %s does not exist' % directory)
return False, None
yangdst = ServerSettings.yang_path(user)
cxmldst = ServerSettings.cxml_path(user)
count = 0
if not os.path.exists(yangdst):
logging.debug('Created ' + yangdst)
os.makedirs(yangdst)
if not os.path.exists(cxmldst):
logging.debug('Created ' + cxmldst)
os.makedirs(cxmldst)
modules = ET.Element('modules')
for cxmlpath in glob.glob(os.path.join(directory, '*.xml')):
basename = os.path.basename(cxmlpath)
if basename == 'dependencies.xml':
continue
base = os.path.splitext(basename)[0]
yang_src_path = os.path.join(directory, base + '.yang')
yang_dst_path = os.path.join(yangdst, base + '.yang')
cxml_dst_path = os.path.join(cxmldst, base + '.xml')
logging.debug('Committing ' + yang_src_path)
if os.path.exists(yang_src_path):
logging.debug('Commit ' + yang_dst_path)
_clean_oldfiles(yangdst, base)
_clean_oldfiles(cxmldst, base)
os.rename(yang_src_path, yang_dst_path)
os.rename(cxmlpath, cxml_dst_path)
module = ET.Element('module')
module.text = base + '.yang'
modules.append(module)
count += 1
# There is a update in yang modules, delete existing dependency file
# so that it will be recompiled next time
if count > 0:
session_d = os.path.join(directory, 'dependencies.xml')
if os.path.exists(session_d):
logging.debug('Moving dependency file ...')
os.rename(session_d, os.path.join(yangdst, 'dependencies.xml'))
else:
logging.debug('Compiling user dependency ...')
Compiler.compile_pyimport(user)
# added module might affect existing module, recompile them
_compile_dependecies(user, [m.text for m in modules], None)
logging.debug('Committed ' + str(count) + ' file(s)')
return True, modules
def commit_files(user, session):
""" Moves compiled yang moudles to user's yang directory """
directory = ServerSettings.session_path(session)
if not os.path.exists(directory):
logging.error('Session storage %s does not exist' % directory)
return False, None
yangdst = ServerSettings.yang_path(user)
cxmldst = ServerSettings.cxml_path(user)
count = 0
if not os.path.exists(yangdst):
logging.debug('Created ' + yangdst)
os.makedirs(yangdst)
if not os.path.exists(cxmldst):
logging.debug('Created ' + cxmldst)
os.makedirs(cxmldst)
modules = ET.Element('modules')
for cxmlpath in glob.glob(os.path.join(directory, '*.xml')):
basename = os.path.basename(cxmlpath)
if basename == 'dependencies.xml':
continue
base = os.path.splitext(basename)[0]
yang_src_path = os.path.join(directory, base + '.yang')
yang_dst_path = os.path.join(yangdst, base + '.yang')
cxml_dst_path = os.path.join(cxmldst, base + '.xml')
logging.debug('Committing ' + yang_src_path)
if os.path.exists(yang_src_path):
logging.debug('Commit ' + yang_dst_path)
_clean_oldfiles(yangdst, base)
_clean_oldfiles(cxmldst, base)
os.rename(yang_src_path, yang_dst_path)
os.rename(cxmlpath, cxml_dst_path)
module = ET.Element('module')
module.text = base + '.yang'
modules.append(module)
count += 1
# There is a update in yang modules, delete existing dependency file
# so that it will be recompiled next time
if count > 0:
session_d = os.path.join(directory, 'dependencies.xml')
if os.path.exists(session_d):
logging.debug('Moving dependency file ...')
os.rename(session_d, os.path.join(yangdst, 'dependencies.xml'))
else:
logging.debug('Compiling user dependency ...')
Compiler.compile_pyimport(user)
# added module might affect existing module, recompile them
_compile_dependecies(user, [m.text for m in modules], None)
logging.debug('Committed ' + str(count) + ' file(s)')
return True, modules
def upload_handler(request):
""" HTTP Request handler function to upload yang models """
mode = request.GET.get('mode', '')
logging.debug(request.method + ':Received upload request .. ' + mode)
if not request.user.is_authenticated():
logging.warning('User must be logged in !!')
return HttpResponse(Response.error(mode, 'Unauthorized'))
if not ServerSettings.user_aware():
if not request.user.has_perm('explorer.delete_yangmodel') or \
not request.user.has_perm('explorer.change_yangmodel'):
logging.warning('Unauthorized upload request .. ')
return HttpResponse(Response.error(mode, 'User does not have permission to upload !!'))
if request.method == 'POST':
# create a temporary storage for this session
directory = ServerSettings.session_path(request.session.session_key)
_file = Uploader.upload_file(request.FILES['Filedata'], directory)
if _file is not None:
module = ET.Element('module')
module.text = _file
rval = Response.success('upload', 'ok', xml=module)
logging.debug(rval)
return HttpResponse(rval)
return HttpResponse(Response.error('upload', 'Failed to upload'))
elif request.method == 'GET':
if mode == 'sync':
filename = request.GET.get('file', '')
index = request.GET.get('index', '')
logging.info('Received sync request for ' + filename + ', index ' + index)
success, response = Uploader.sync_file(request.user.username,
request.session.session_key,
filename, index)
if success:
return HttpResponse(Response.success(mode, 'ok'))
return HttpResponse(Response.error(mode, 'compilation failed', xml=response))
elif mode == 'commit':
success, modules = Uploader.commit_files(request.user.username, request.session.session_key)
if success:
return HttpResponse(Response.success('commit', 'ok', modules))
elif mode == 'init':
success, modules = Uploader.get_upload_files(request.user.username, request.session.session_key)
if success:
return HttpResponse(Response.success(mode, 'ok', modules))
elif mode == 'clear':
success, modules = Uploader.clear_upload_files(request.user.username, request.session.session_key)
if success:
return HttpResponse(Response.success(mode, 'ok', modules))
return HttpResponse(Response.error(mode, 'failed'))
return render_to_response('upload.html')
def get_dependencies(username, modules, session):
"""
return dependencies for given yang models
"""
session_dir = ''
logging.debug("get_dependencies: Target Modules " + str(modules))
if session is not None:
session_dir = ServerSettings.session_path(session)
dfile = os.path.join(session_dir, 'dependencies.xml')
else:
dfile = os.path.join(ServerSettings.yang_path(username), 'dependencies.xml')
if not os.path.exists(dfile):
logging.error('get_dependencies: dependency file %s missing!!', dfile)
return []
if session_dir:
session_files = [os.path.basename(_file) for _file in glob.glob(os.path.join(session_dir, '*.yang'))]
yang_path = ServerSettings.yang_path(username)
yang_files = [os.path.basename(_file) for _file in glob.glob(os.path.join(yang_path, '*.yang'))]
dmodules = Set([])
dgraph = DYGraph(dfile)
for m in modules:
module = dgraph.dependency_module(m)
if module is None:
continue
for name in module.imports:
dmodules.add(name)
for name in module.includes:
dmodules.add(name)
for name in module.depends:
dmodules.add(name)
dmodules_list = list(dmodules)
deplist = []
for _file in dmodules_list:
# prefer freshly uploaded files
if session_dir:
depfile = _find_matching(_file, session_dir, session_files)
else:
depfile = _find_matching(_file, yang_path, yang_files)
if depfile is not None:
deplist.append(depfile)
else:
logging.warning("get_dependencies: Dependency (%s) not satisfied, compilation will fail !!" % _file)
logging.debug("get_dependencies: Computed " + str(deplist))
return deplist
def clear_upload_files(user, session):
""" Delete uploaded yang files which are not committed """
directory = ServerSettings.session_path(session)
if not os.path.exists(directory):
logging.debug('Session storage %s does not exist' % directory)
return False, None
modules = ET.Element('modules')
for _file in glob.glob(os.path.join(directory, '*')):
os.remove(_file)
return True, modules
def clear_upload_files(user, session):
""" Delete uploaded yang files which are not committed """
directory = ServerSettings.session_path(session)
if not os.path.exists(directory):
logging.error('Session storage %s does not exist' % directory)
return (False, None)
modules = ET.Element('modules')
for _file in glob.glob(os.path.join(directory, '*')):
os.remove(_file)
return (True, modules)
def sync_file(user, session, filename, index):
""" Compile yang module """
if index == '0':
logging.debug('Compiling session dependency ...')
(rc, msg) = Compiler.compile_pyimport(user, session)
if not rc:
return rc, msg
_file = os.path.join(ServerSettings.session_path(session), filename)
if os.path.exists(_file):
(rc, msgs) = Compiler.compile_cxml(user, session, _file)
else:
logging.error('sync_file: File %s not found ' % filename)
(rc, msgs) = (False, None)
return rc, msgs
def sync_file(user, session, filename, index):
""" Compile yang module """
if index == '0':
logging.debug('Compiling session dependency ...')
(rc, msg) = Compiler.compile_pyimport(user, session)
if not rc:
return (rc, msg)
_file = os.path.join(ServerSettings.session_path(session), filename)
if os.path.exists(_file):
(rc, msgs) = Compiler.compile_cxml(user, session, _file)
else:
logging.error('sync_file: File %s not found ' % filename)
(rc, msgs) = (False, None)
return (rc, msgs)
def get_upload_files(user, session):
""" Get the list of uploaded yang files which are not committed """
modules = ET.Element('modules')
directory = ServerSettings.session_path(session)
if not os.path.exists(directory):
logging.error('Session storage %s does not exist' % directory)
return (True, modules)
for _file in glob.glob(os.path.join(directory, '*.yang')):
module = ET.Element('module')
module.text = os.path.basename(_file)
modules.append(module)
return (True, modules)
def get_upload_files(user, session):
""" Get the list of uploaded yang files which are not committed """
modules = ET.Element('modules')
directory = ServerSettings.session_path(session)
if not os.path.exists(directory):
logging.error('Session storage %s does not exist' % directory)
return True, modules
for _file in glob.glob(os.path.join(directory, '*.yang')):
module = ET.Element('module')
module.text = os.path.basename(_file)
modules.append(module)
return True, modules
def compile_pyimport(username, session=None):
"""
Compile yang model and return tuple (boolean, list-of-errors)
"""
plugins = os.path.join(settings.BASE_DIR, 'explorer', 'plugins')
if not os.path.exists(plugins):
logging.error('CXML Plugin directory is missing .. !!')
return False, None
if subprocess.call(['which', 'pyang']) != 0:
logging.error(
'Could not find pyang compiler, please install pyang .. !!')
return False, None
logging.debug('Rebuilding dependencies for user %s' % username)
# build include path
includes = [ServerSettings.yang_path(username)]
if session is not None:
session_dir = ServerSettings.session_path(session)
if not os.path.exists(session_dir):
logging.error(
'compile_pyimport: Session directory %s not found !!',
session_dir)
return False, ["Session error !!"]
includes.append(session_dir)
depfile = os.path.join(session_dir, 'dependencies.xml')
else:
depfile = os.path.join(includes[0], 'dependencies.xml')
target_yangs = []
for yang_dir in includes:
for _file in glob.glob(os.path.join(yang_dir, '*.yang')):
target_yangs.append(_file)
if not target_yangs:
logging.debug('compile_pyimport: No yang file found !!')
return True, ET.Element('messages')
command = [
'pyang', '-f', 'pyimport', '--ignore-error', '--plugindir',
'explorer/plugins', '-p'
]
command += [':'.join(includes)]
command += target_yangs
return Compiler.invoke_compile(command, depfile)
def create_session_storage(session):
"""
Create session storage directory for storing session private files
Args:
session: session id for user
Returns: None
"""
directory = ServerSettings.session_path(session)
try:
if not os.path.exists(directory):
logging.debug('Creating session storage ..')
os.makedirs(directory)
if not os.path.exists(directory):
logging.error('Failed to create session storage ..')
return None
except:
return None
return directory
def create_session_storage(session):
"""
Create session storage directory for storing session private files
Args:
session: session id for user
Returns: None
"""
directory = ServerSettings.session_path(session)
try:
if not os.path.exists(directory):
logging.debug('Creating session storage ..')
os.makedirs(directory)
if not os.path.exists(directory):
logging.error('Failed to create session storage ..')
return None
except:
return None
return directory
def compile_pyimport(username, session=None):
'''
Compile yang model and return tuple (boolean, list-of-errors)
'''
plugins = os.path.join(settings.BASE_DIR, 'explorer', 'plugins')
if not os.path.exists(plugins):
logging.error('CXML Plugin directory is missing .. !!')
return (False, None)
if subprocess.call(['which', 'pyang']) != 0:
logging.error('Could not find pyang compiler, please install pyang .. !!')
return (False, None)
logging.debug('Rebuilding dependencies for user %s' % username)
# build include path
includes = [ServerSettings.yang_path(username)]
if session is not None:
session_dir = ServerSettings.session_path(session)
if not os.path.exists(session_dir):
logging.error('compile_pyimport: Session directory %s not found !!', session_dir)
return (False, ["Session error !!"])
includes.append(session_dir)
depfile = os.path.join(session_dir, 'dependencies.xml')
else:
depfile = os.path.join(includes[0], 'dependencies.xml')
target_yangs = []
for yang_dir in includes:
for _file in glob.glob(os.path.join(yang_dir, '*.yang')):
target_yangs.append(_file)
if not target_yangs:
logging.debug('compile_pyimport: No yang file found !!')
return (True, ET.Element('messages'))
command = ['pyang', '-f', 'pyimport', '--plugindir', 'explorer/plugins', '-p']
command += [':'.join(includes)]
command += target_yangs
return Compiler.invoke_compile(command, depfile)
def compile_pyimport(username, session=None):
"""
Compile yang model and return tuple (boolean, list-of-errors)
"""
plugins = os.path.join(settings.BASE_DIR, "explorer", "plugins")
if not os.path.exists(plugins):
logging.error("CXML Plugin directory is missing .. !!")
return False, None
if subprocess.call(["which", "pyang"]) != 0:
logging.error("Could not find pyang compiler, please install pyang .. !!")
return False, None
logging.debug("Rebuilding dependencies for user %s" % username)
# build include path
includes = [ServerSettings.yang_path(username)]
if session is not None:
session_dir = ServerSettings.session_path(session)
if not os.path.exists(session_dir):
logging.error("compile_pyimport: Session directory %s not found !!", session_dir)
return False, ["Session error !!"]
includes.append(session_dir)
depfile = os.path.join(session_dir, "dependencies.xml")
else:
depfile = os.path.join(includes[0], "dependencies.xml")
target_yangs = []
for yang_dir in includes:
for _file in glob.glob(os.path.join(yang_dir, "*.yang")):
target_yangs.append(_file)
if not target_yangs:
logging.debug("compile_pyimport: No yang file found !!")
return True, ET.Element("messages")
command = ["pyang", "-f", "pyimport", "--plugindir", "explorer/plugins", "-p"]
command += [":".join(includes)]
command += target_yangs
return Compiler.invoke_compile(command, depfile)
def compile_cxml(username, session, filename):
"""
Compile yang model and return tuple (boolean, list-of-errors)
"""
logging.debug("Compiling %s .. !!" % filename)
plugins = os.path.join(settings.BASE_DIR, "explorer", "plugins")
if not os.path.exists(plugins):
logging.error("CXML Plugin directory is missing .. !!")
return False, None
if subprocess.call(["which", "pyang"]) != 0:
logging.error("Could not find pyang compiler, please install pyang .. !!")
return False, None
basename = os.path.basename(filename)
modulename = basename.split(".")[0].strip()
session_dir = ""
if session is not None:
session_dir = ServerSettings.session_path(session)
if not os.path.exists(session_dir):
logging.error("compile_cxml: Session directory %s not found !!", session_dir)
return False, ["Session error !!"]
yangfile = os.path.join(session_dir, modulename + ".yang")
cxmlfile = os.path.join(session_dir, modulename + ".xml")
else:
yangfile = os.path.join(ServerSettings.yang_path(username), modulename + ".yang")
cxmlfile = os.path.join(ServerSettings.cxml_path(username), modulename + ".xml")
# Verify if yang file exists
if not os.path.exists(yangfile):
logging.debug("compile_cxml: " + yangfile + " not found !!")
return False, ["Yang module %s not found on server !!" % modulename]
command = ["pyang", "-f", "cxml", "--plugindir", "explorer/plugins", "-p"]
# include path for pyang compilation
includes = ServerSettings.yang_path(username)
if session_dir:
includes += ":" + session_dir
command.append(includes)
# include dependent models
command += Compiler.get_dependencies(username, [filename], session)
# finally add target module
command.append(yangfile)
# create a callback to handle empty output
def empty_callback(outfile):
module = os.path.basename(outfile)
module = module.split(".")[0]
module = module.split("@")[0]
node = ET.Element("node")
node.set("name", module)
node.set("type", "module")
with open(outfile, "w") as fd:
fd.write(ET.tostring(node))
logging.debug("compile_cxml: Empty output from pyang, created default cxml!!")
return Compiler.invoke_compile(command, cxmlfile, empty_callback)
def get_dependencies(username, modules, session):
"""
return dependencies for given yang models
"""
session_dir = ''
logging.debug("get_dependencies: Target Modules " + str(modules))
if session is not None:
session_dir = ServerSettings.session_path(session)
dfile = os.path.join(session_dir, 'dependencies.xml')
else:
dfile = os.path.join(ServerSettings.yang_path(username),
'dependencies.xml')
if not os.path.exists(dfile):
logging.error('get_dependencies: dependency file %s missing!!',
dfile)
return []
if session_dir:
session_files = [
os.path.basename(_file)
for _file in glob.glob(os.path.join(session_dir, '*.yang'))
]
yang_path = ServerSettings.yang_path(username)
yang_files = [
os.path.basename(_file)
for _file in glob.glob(os.path.join(yang_path, '*.yang'))
]
dmodules = Set([])
dgraph = DYGraph(dfile)
for m in modules:
module = dgraph.dependency_module(m)
if module is None:
continue
for name in module.imports:
dmodules.add(name)
for name in module.includes:
dmodules.add(name)
for name in module.depends:
dmodules.add(name)
dmodules_list = list(dmodules)
deplist = []
for _file in dmodules_list:
# prefer freshly uploaded files
if session_dir:
depfile = _find_matching(_file, session_dir, session_files)
else:
depfile = _find_matching(_file, yang_path, yang_files)
if depfile is not None:
deplist.append(depfile)
else:
logging.warning(
"get_dependencies: Dependency (%s) not satisfied, compilation may fail !!"
% _file)
logging.debug("get_dependencies: Computed " + str(deplist))
return deplist
def compile_cxml(username, session, filename):
'''
Compile yang model and return tuple (boolean, list-of-errors)
'''
logging.debug('Compiling %s .. !!' % filename)
plugins = os.path.join(settings.BASE_DIR, 'explorer', 'plugins')
if not os.path.exists(plugins):
logging.error('CXML Plugin directory is missing .. !!')
return (False, None)
if subprocess.call(['which', 'pyang']) != 0:
logging.error('Could not find pyang compiler, please install pyang .. !!')
return (False, None)
basename = os.path.basename(filename)
modulename = basename.split('.')[0].strip()
session_dir = ''
if session is not None:
session_dir = ServerSettings.session_path(session)
if not os.path.exists(session_dir):
logging.error('compile_cxml: Session directory %s not found !!', session_dir)
return (False, ["Session error !!"])
yangfile = os.path.join(session_dir, modulename + '.yang')
cxmlfile = os.path.join(session_dir, modulename + '.xml')
else:
yangfile = os.path.join(ServerSettings.yang_path(username), modulename + '.yang')
cxmlfile = os.path.join(ServerSettings.cxml_path(username), modulename + '.xml')
# Verify if yang file exists
if not os.path.exists(yangfile):
logging.debug("compile_cxml: " + yangfile + ' not found !!')
return (False, ["Yang module %s not found on server !!" % modulename])
command = ['pyang', '-f', 'cxml', '--plugindir', 'explorer/plugins', '-p']
# include path for pyang compilation
includes = ServerSettings.yang_path(username)
if session_dir:
includes += ':' + session_dir
command.append(includes)
# include dependent models
command += Compiler.get_dependencies(username, [filename], session)
# finally add target module
command.append(yangfile)
# create a callback to handle empty output
def empty_callback(outfile):
module = os.path.basename(outfile)
module = module.split('.')[0]
module = module.split('@')[0]
node = ET.Element('node')
node.set('name', module)
node.set('type', 'module')
with open(outfile, 'w') as fd:
fd.write(ET.tostring(node))
logging.debug('compile_cxml: Empty output from pyang, created default cxml!!')
return Compiler.invoke_compile(command, cxmlfile, empty_callback)
def compile_cxml(username, session, filename):
"""
Compile yang model and return tuple (boolean, list-of-errors)
"""
logging.debug('Compiling %s .. !!' % filename)
plugins = os.path.join(settings.BASE_DIR, 'explorer', 'plugins')
if not os.path.exists(plugins):
logging.error('CXML Plugin directory is missing .. !!')
return False, None
if subprocess.call(['which', 'pyang']) != 0:
logging.error(
'Could not find pyang compiler, please install pyang .. !!')
return False, None
basename = os.path.basename(filename)
modulename = basename.split('.yang')[0].strip()
session_dir = ''
if session is not None:
session_dir = ServerSettings.session_path(session)
if not os.path.exists(session_dir):
logging.error(
'compile_cxml: Session directory %s not found !!',
session_dir)
return False, ["Session error !!"]
yangfile = os.path.join(session_dir, modulename + '.yang')
cxmlfile = os.path.join(session_dir, modulename + '.xml')
else:
yangfile = os.path.join(ServerSettings.yang_path(username),
modulename + '.yang')
cxmlfile = os.path.join(ServerSettings.cxml_path(username),
modulename + '.xml')
# Verify if yang file exists
if not os.path.exists(yangfile):
logging.debug("compile_cxml: " + yangfile + ' not found !!')
return False, [
"Yang module %s not found on server !!" % modulename
]
command = [
'pyang', '-f', 'cxml', '--ignore-error', '--plugindir',
'explorer/plugins', '-p'
]
# include path for pyang compilation
includes = ServerSettings.yang_path(username)
if session_dir:
includes += ':' + session_dir
command.append(includes)
# include dependent models
command += Compiler.get_dependencies(username, [filename], session)
# finally add target module
command.append(yangfile)
# create a callback to handle empty output
def empty_callback(outfile):
module = os.path.basename(outfile)
module = module.split('.')[0]
module = module.split('@')[0]
node = ET.Element('node')
node.set('name', module)
node.set('type', 'module')
with open(outfile, 'w') as fd:
fd.write(ET.tostring(node))
logging.debug(
'compile_cxml: Empty output from pyang, created default cxml!!'
)
return Compiler.invoke_compile(command, cxmlfile, empty_callback)