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# Copyright: (c) 2015, Michael DeHaan <michael.dehaan@gmail.com> # Copyright: (c) 2018, Ansible Project # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import (absolute_import, division, print_function) __metaclass__ = type import os import shutil import stat import tempfile from ansible import constants as C from ansible.config.manager import ensure_type from ansible.errors import AnsibleError, AnsibleFileNotFound, AnsibleAction, AnsibleActionFail from ansible.module_utils._text import to_bytes, to_text, to_native from ansible.module_utils.parsing.convert_bool import boolean from ansible.module_utils.six import string_types from ansible.plugins.action import ActionBase from ansible.template import generate_ansible_template_vars, AnsibleEnvironment 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 # Options type validation # stings for s_type in ('src', 'dest', 'state', 'newline_sequence', 'variable_start_string', 'variable_end_string', 'block_start_string', 'block_end_string', 'comment_start_string', 'comment_end_string'): if s_type in self._task.args: value = ensure_type(self._task.args[s_type], 'string') if value is not None and not isinstance(value, string_types): raise AnsibleActionFail("%s is expected to be a string, but got %s instead" % (s_type, type(value))) self._task.args[s_type] = value # booleans try: follow = boolean(self._task.args.get('follow', False), strict=False) trim_blocks = boolean(self._task.args.get('trim_blocks', True), strict=False) lstrip_blocks = boolean(self._task.args.get('lstrip_blocks', False), strict=False) except TypeError as e: raise AnsibleActionFail(to_native(e)) # assign to local vars for ease of use source = self._task.args.get('src', None) dest = self._task.args.get('dest', None) 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) comment_start_string = self._task.args.get('comment_start_string', None) comment_end_string = self._task.args.get('comment_end_string', None) output_encoding = self._task.args.get('output_encoding', 'utf-8') or 'utf-8' 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: # logical validation 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)) mode = self._task.args.get('mode', None) if mode == 'preserve': mode = '0%03o' % stat.S_IMODE(os.stat(source).st_mode) # 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))) b_tmp_source = to_bytes(tmp_source, errors='surrogate_or_strict') # template the source data locally & get ready to transfer try: with open(b_tmp_source, 'rb') as f: try: template_data = to_text(f.read(), errors='surrogate_or_strict') except UnicodeError: raise AnsibleActionFail("Template source files must be utf-8 encoded") # 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 # add ansible 'template' vars temp_vars = task_vars.copy() # NOTE in the case of ANSIBLE_DEBUG=1 task_vars is VarsWithSources(MutableMapping) # so | operator cannot be used as it can be used only on dicts # https://peps.python.org/pep-0584/#what-about-mapping-and-mutablemapping temp_vars.update(generate_ansible_template_vars(self._task.args.get('src', None), source, dest)) # force templar to use AnsibleEnvironment to prevent issues with native types # https://github.com/ansible/ansible/issues/46169 templar = self._templar.copy_with_new_env(environment_class=AnsibleEnvironment, searchpath=searchpath, newline_sequence=newline_sequence, block_start_string=block_start_string, block_end_string=block_end_string, variable_start_string=variable_start_string, variable_end_string=variable_end_string, comment_start_string=comment_start_string, comment_end_string=comment_end_string, trim_blocks=trim_blocks, lstrip_blocks=lstrip_blocks, available_variables=temp_vars) resultant = templar.do_template(template_data, preserve_trailing_newlines=True, escape_backslashes=False) except AnsibleAction: raise except Exception as e: raise AnsibleActionFail("%s: %s" % (type(e).__name__, to_text(e))) finally: self._loader.cleanup_tmp_file(b_tmp_source) new_task = self._task.copy() # mode is either the mode from task.args or the mode of the source file if the task.args # mode == 'preserve' new_task.args['mode'] = mode # remove 'template only' options: for remove in ('newline_sequence', 'block_start_string', 'block_end_string', 'variable_start_string', 'variable_end_string', 'comment_start_string', 'comment_end_string', 'trim_blocks', 'lstrip_blocks', 'output_encoding'): new_task.args.pop(remove, None) local_tempdir = tempfile.mkdtemp(dir=C.DEFAULT_LOCAL_TMP) try: result_file = os.path.join(local_tempdir, os.path.basename(source)) with open(to_bytes(result_file, errors='surrogate_or_strict'), 'wb') as f: f.write(to_bytes(resultant, encoding=output_encoding, errors='surrogate_or_strict')) new_task.args.update( dict( src=result_file, dest=dest, follow=follow, ), ) # call with ansible.legacy prefix to eliminate collisions with collections while still allowing local override copy_action = self._shared_loader_obj.action_loader.get('ansible.legacy.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(to_bytes(local_tempdir, errors='surrogate_or_strict')) except AnsibleAction as e: result.update(e.result) finally: self._remove_tmp_path(self._connection._shell.tmpdir) return result