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# (c) 2015, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import shutil
import tempfile
from ansible import constants as C
from ansible.errors import AnsibleError, AnsibleFileNotFound, AnsibleAction, AnsibleActionFail
from ansible.module_utils._text import to_bytes, to_text
from ansible.module_utils.parsing.convert_bool import boolean
from ansible.plugins.action import ActionBase
from ansible.template import generate_ansible_template_vars
class ActionModule(ActionBase):
TRANSFERS_FILES = True
DEFAULT_NEWLINE_SEQUENCE = "\n"
def run(self, tmp=None, task_vars=None):
''' handler for template operations '''
if task_vars is None:
task_vars = dict()
result = super(ActionModule, self).run(tmp, task_vars)
del tmp # tmp no longer has any effect
source = self._task.args.get('src', None)
dest = self._task.args.get('dest', None)
force = boolean(self._task.args.get('force', True), strict=False)
follow = boolean(self._task.args.get('follow', False), strict=False)
state = self._task.args.get('state', None)
newline_sequence = self._task.args.get('newline_sequence', self.DEFAULT_NEWLINE_SEQUENCE)
variable_start_string = self._task.args.get('variable_start_string', None)
variable_end_string = self._task.args.get('variable_end_string', None)
block_start_string = self._task.args.get('block_start_string', None)
block_end_string = self._task.args.get('block_end_string', None)
trim_blocks = self._task.args.get('trim_blocks', None)
wrong_sequences = ["\\n", "\\r", "\\r\\n"]
allowed_sequences = ["\n", "\r", "\r\n"]
# We need to convert unescaped sequences to proper escaped sequences for Jinja2
if newline_sequence in wrong_sequences:
newline_sequence = allowed_sequences[wrong_sequences.index(newline_sequence)]
try:
if state is not None:
raise AnsibleActionFail("'state' cannot be specified on a template")
elif source is None or dest is None:
raise AnsibleActionFail("src and dest are required")
elif newline_sequence not in allowed_sequences:
raise AnsibleActionFail("newline_sequence needs to be one of: \n, \r or \r\n")
else:
try:
source = self._find_needle('templates', source)
except AnsibleError as e:
raise AnsibleActionFail(to_text(e))
# Get vault decrypted tmp file
try:
tmp_source = self._loader.get_real_file(source)
except AnsibleFileNotFound as e:
raise AnsibleActionFail("could not find src=%s, %s" % (source, to_text(e)))
# template the source data locally & get ready to transfer
try:
with open(tmp_source, 'r') as f:
template_data = to_text(f.read())
# set jinja2 internal search path for includes
searchpath = task_vars.get('ansible_search_path', [])
searchpath.extend([self._loader._basedir, os.path.dirname(source)])
# We want to search into the 'templates' subdir of each search path in
# addition to our original search paths.
newsearchpath = []
for p in searchpath:
newsearchpath.append(os.path.join(p, 'templates'))
newsearchpath.append(p)
searchpath = newsearchpath
self._templar.environment.loader.searchpath = searchpath
self._templar.environment.newline_sequence = newline_sequence
if block_start_string is not None:
self._templar.environment.block_start_string = block_start_string
if block_end_string is not None:
self._templar.environment.block_end_string = block_end_string
if variable_start_string is not None:
self._templar.environment.variable_start_string = variable_start_string
if variable_end_string is not None:
self._templar.environment.variable_end_string = variable_end_string
if trim_blocks is not None:
self._templar.environment.trim_blocks = bool(trim_blocks)
# add ansible 'template' vars
temp_vars = task_vars.copy()
temp_vars.update(generate_ansible_template_vars(source))
old_vars = self._templar._available_variables
self._templar.set_available_variables(temp_vars)
resultant = self._templar.do_template(template_data, preserve_trailing_newlines=True, escape_backslashes=False)
self._templar.set_available_variables(old_vars)
except AnsibleAction:
raise
except Exception as e:
raise AnsibleActionFail("%s: %s" % (type(e).__name__, to_text(e)))
finally:
self._loader.cleanup_tmp_file(tmp_source)
new_task = self._task.copy()
new_task.args.pop('newline_sequence', None)
new_task.args.pop('block_start_string', None)
new_task.args.pop('block_end_string', None)
new_task.args.pop('variable_start_string', None)
new_task.args.pop('variable_end_string', None)
new_task.args.pop('trim_blocks', None)
local_tempdir = tempfile.mkdtemp(dir=C.DEFAULT_LOCAL_TMP)
try:
result_file = os.path.join(local_tempdir, os.path.basename(source))
with open(result_file, 'wb') as f:
f.write(to_bytes(resultant, errors='surrogate_or_strict'))
new_task.args.update(
dict(
src=result_file,
dest=dest,
follow=follow,
),
)
copy_action = self._shared_loader_obj.action_loader.get('copy',
task=new_task,
connection=self._connection,
play_context=self._play_context,
loader=self._loader,
templar=self._templar,
shared_loader_obj=self._shared_loader_obj)
result.update(copy_action.run(task_vars=task_vars))
finally:
shutil.rmtree(local_tempdir)
except AnsibleAction as e:
result.update(e.result)
finally:
self._remove_tmp_path(self._connection._shell.tempdir)
return result
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