22330dd322
* Correctly set path and fullpath for template vars don't expect path to always be full path also added exception/tb on action fail
368 lines
14 KiB
Python
368 lines
14 KiB
Python
# (c) 2012-2014, 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/>.
|
|
|
|
# Make coding more python3-ish
|
|
from __future__ import (absolute_import, division, print_function)
|
|
__metaclass__ = type
|
|
|
|
import re
|
|
import traceback
|
|
|
|
from ansible.errors.yaml_strings import (
|
|
YAML_COMMON_DICT_ERROR,
|
|
YAML_COMMON_LEADING_TAB_ERROR,
|
|
YAML_COMMON_PARTIALLY_QUOTED_LINE_ERROR,
|
|
YAML_COMMON_UNBALANCED_QUOTES_ERROR,
|
|
YAML_COMMON_UNQUOTED_COLON_ERROR,
|
|
YAML_COMMON_UNQUOTED_VARIABLE_ERROR,
|
|
YAML_POSITION_DETAILS,
|
|
YAML_AND_SHORTHAND_ERROR,
|
|
)
|
|
from ansible.module_utils._text import to_native, to_text
|
|
from ansible.module_utils.common._collections_compat import Sequence
|
|
|
|
|
|
class AnsibleError(Exception):
|
|
'''
|
|
This is the base class for all errors raised from Ansible code,
|
|
and can be instantiated with two optional parameters beyond the
|
|
error message to control whether detailed information is displayed
|
|
when the error occurred while parsing a data file of some kind.
|
|
|
|
Usage:
|
|
|
|
raise AnsibleError('some message here', obj=obj, show_content=True)
|
|
|
|
Where "obj" is some subclass of ansible.parsing.yaml.objects.AnsibleBaseYAMLObject,
|
|
which should be returned by the DataLoader() class.
|
|
'''
|
|
|
|
def __init__(self, message="", obj=None, show_content=True, suppress_extended_error=False, orig_exc=None):
|
|
super(AnsibleError, self).__init__(message)
|
|
|
|
self._show_content = show_content
|
|
self._suppress_extended_error = suppress_extended_error
|
|
self._message = to_native(message)
|
|
self.obj = obj
|
|
self.orig_exc = orig_exc
|
|
|
|
@property
|
|
def message(self):
|
|
# we import this here to prevent an import loop problem,
|
|
# since the objects code also imports ansible.errors
|
|
from ansible.parsing.yaml.objects import AnsibleBaseYAMLObject
|
|
|
|
message = [self._message]
|
|
if isinstance(self.obj, AnsibleBaseYAMLObject):
|
|
extended_error = self._get_extended_error()
|
|
if extended_error and not self._suppress_extended_error:
|
|
message.append(
|
|
'\n\n%s' % to_native(extended_error)
|
|
)
|
|
elif self.orig_exc:
|
|
message.append('. %s' % to_native(self.orig_exc))
|
|
|
|
return ''.join(message)
|
|
|
|
@message.setter
|
|
def message(self, val):
|
|
self._message = val
|
|
|
|
def __str__(self):
|
|
return self.message
|
|
|
|
def __repr__(self):
|
|
return self.message
|
|
|
|
def _get_error_lines_from_file(self, file_name, line_number):
|
|
'''
|
|
Returns the line in the file which corresponds to the reported error
|
|
location, as well as the line preceding it (if the error did not
|
|
occur on the first line), to provide context to the error.
|
|
'''
|
|
|
|
target_line = ''
|
|
prev_line = ''
|
|
|
|
with open(file_name, 'r') as f:
|
|
lines = f.readlines()
|
|
|
|
# In case of a YAML loading error, PyYAML will report the very last line
|
|
# as the location of the error. Avoid an index error here in order to
|
|
# return a helpful message.
|
|
file_length = len(lines)
|
|
if line_number >= file_length:
|
|
line_number = file_length - 1
|
|
|
|
# If target_line contains only whitespace, move backwards until
|
|
# actual code is found. If there are several empty lines after target_line,
|
|
# the error lines would just be blank, which is not very helpful.
|
|
target_line = lines[line_number]
|
|
while not target_line.strip():
|
|
line_number -= 1
|
|
target_line = lines[line_number]
|
|
|
|
if line_number > 0:
|
|
prev_line = lines[line_number - 1]
|
|
|
|
return (target_line, prev_line)
|
|
|
|
def _get_extended_error(self):
|
|
'''
|
|
Given an object reporting the location of the exception in a file, return
|
|
detailed information regarding it including:
|
|
|
|
* the line which caused the error as well as the one preceding it
|
|
* causes and suggested remedies for common syntax errors
|
|
|
|
If this error was created with show_content=False, the reporting of content
|
|
is suppressed, as the file contents may be sensitive (ie. vault data).
|
|
'''
|
|
|
|
error_message = ''
|
|
|
|
try:
|
|
(src_file, line_number, col_number) = self.obj.ansible_pos
|
|
error_message += YAML_POSITION_DETAILS % (src_file, line_number, col_number)
|
|
if src_file not in ('<string>', '<unicode>') and self._show_content:
|
|
(target_line, prev_line) = self._get_error_lines_from_file(src_file, line_number - 1)
|
|
target_line = to_text(target_line)
|
|
prev_line = to_text(prev_line)
|
|
if target_line:
|
|
stripped_line = target_line.replace(" ", "")
|
|
|
|
# Check for k=v syntax in addition to YAML syntax and set the appropriate error position,
|
|
# arrow index
|
|
if re.search(r'\w+(\s+)?=(\s+)?[\w/-]+', prev_line):
|
|
error_position = prev_line.rstrip().find('=')
|
|
arrow_line = (" " * error_position) + "^ here"
|
|
error_message = YAML_POSITION_DETAILS % (src_file, line_number - 1, error_position + 1)
|
|
error_message += "\nThe offending line appears to be:\n\n%s\n%s\n\n" % (prev_line.rstrip(), arrow_line)
|
|
error_message += YAML_AND_SHORTHAND_ERROR
|
|
else:
|
|
arrow_line = (" " * (col_number - 1)) + "^ here"
|
|
error_message += "\nThe offending line appears to be:\n\n%s\n%s\n%s\n" % (prev_line.rstrip(), target_line.rstrip(), arrow_line)
|
|
|
|
# TODO: There may be cases where there is a valid tab in a line that has other errors.
|
|
if '\t' in target_line:
|
|
error_message += YAML_COMMON_LEADING_TAB_ERROR
|
|
# common error/remediation checking here:
|
|
# check for unquoted vars starting lines
|
|
if ('{{' in target_line and '}}' in target_line) and ('"{{' not in target_line or "'{{" not in target_line):
|
|
error_message += YAML_COMMON_UNQUOTED_VARIABLE_ERROR
|
|
# check for common dictionary mistakes
|
|
elif ":{{" in stripped_line and "}}" in stripped_line:
|
|
error_message += YAML_COMMON_DICT_ERROR
|
|
# check for common unquoted colon mistakes
|
|
elif (len(target_line) and
|
|
len(target_line) > 1 and
|
|
len(target_line) > col_number and
|
|
target_line[col_number] == ":" and
|
|
target_line.count(':') > 1):
|
|
error_message += YAML_COMMON_UNQUOTED_COLON_ERROR
|
|
# otherwise, check for some common quoting mistakes
|
|
else:
|
|
# FIXME: This needs to split on the first ':' to account for modules like lineinfile
|
|
# that may have lines that contain legitimate colons, e.g., line: 'i ALL= (ALL) NOPASSWD: ALL'
|
|
# and throw off the quote matching logic.
|
|
parts = target_line.split(":")
|
|
if len(parts) > 1:
|
|
middle = parts[1].strip()
|
|
match = False
|
|
unbalanced = False
|
|
|
|
if middle.startswith("'") and not middle.endswith("'"):
|
|
match = True
|
|
elif middle.startswith('"') and not middle.endswith('"'):
|
|
match = True
|
|
|
|
if (len(middle) > 0 and
|
|
middle[0] in ['"', "'"] and
|
|
middle[-1] in ['"', "'"] and
|
|
target_line.count("'") > 2 or
|
|
target_line.count('"') > 2):
|
|
unbalanced = True
|
|
|
|
if match:
|
|
error_message += YAML_COMMON_PARTIALLY_QUOTED_LINE_ERROR
|
|
if unbalanced:
|
|
error_message += YAML_COMMON_UNBALANCED_QUOTES_ERROR
|
|
|
|
except (IOError, TypeError):
|
|
error_message += '\n(could not open file to display line)'
|
|
except IndexError:
|
|
error_message += '\n(specified line no longer in file, maybe it changed?)'
|
|
|
|
return error_message
|
|
|
|
|
|
class AnsibleAssertionError(AnsibleError, AssertionError):
|
|
'''Invalid assertion'''
|
|
pass
|
|
|
|
|
|
class AnsibleOptionsError(AnsibleError):
|
|
''' bad or incomplete options passed '''
|
|
pass
|
|
|
|
|
|
class AnsibleParserError(AnsibleError):
|
|
''' something was detected early that is wrong about a playbook or data file '''
|
|
pass
|
|
|
|
|
|
class AnsibleInternalError(AnsibleError):
|
|
''' internal safeguards tripped, something happened in the code that should never happen '''
|
|
pass
|
|
|
|
|
|
class AnsibleRuntimeError(AnsibleError):
|
|
''' ansible had a problem while running a playbook '''
|
|
pass
|
|
|
|
|
|
class AnsibleModuleError(AnsibleRuntimeError):
|
|
''' a module failed somehow '''
|
|
pass
|
|
|
|
|
|
class AnsibleConnectionFailure(AnsibleRuntimeError):
|
|
''' the transport / connection_plugin had a fatal error '''
|
|
pass
|
|
|
|
|
|
class AnsibleAuthenticationFailure(AnsibleConnectionFailure):
|
|
'''invalid username/password/key'''
|
|
pass
|
|
|
|
|
|
class AnsibleCallbackError(AnsibleRuntimeError):
|
|
''' a callback failure '''
|
|
pass
|
|
|
|
|
|
class AnsibleTemplateError(AnsibleRuntimeError):
|
|
'''A template related error'''
|
|
pass
|
|
|
|
|
|
class AnsibleFilterError(AnsibleTemplateError):
|
|
''' a templating failure '''
|
|
pass
|
|
|
|
|
|
class AnsibleLookupError(AnsibleTemplateError):
|
|
''' a lookup failure '''
|
|
pass
|
|
|
|
|
|
class AnsibleUndefinedVariable(AnsibleTemplateError):
|
|
''' a templating failure '''
|
|
pass
|
|
|
|
|
|
class AnsibleFileNotFound(AnsibleRuntimeError):
|
|
''' a file missing failure '''
|
|
|
|
def __init__(self, message="", obj=None, show_content=True, suppress_extended_error=False, orig_exc=None, paths=None, file_name=None):
|
|
|
|
self.file_name = file_name
|
|
self.paths = paths
|
|
|
|
if message:
|
|
message += "\n"
|
|
if self.file_name:
|
|
message += "Could not find or access '%s'" % to_text(self.file_name)
|
|
else:
|
|
message += "Could not find file"
|
|
|
|
if self.paths and isinstance(self.paths, Sequence):
|
|
searched = to_text('\n\t'.join(self.paths))
|
|
if message:
|
|
message += "\n"
|
|
message += "Searched in:\n\t%s" % searched
|
|
|
|
message += " on the Ansible Controller.\nIf you are using a module and expect the file to exist on the remote, see the remote_src option"
|
|
|
|
super(AnsibleFileNotFound, self).__init__(message=message, obj=obj, show_content=show_content,
|
|
suppress_extended_error=suppress_extended_error, orig_exc=orig_exc)
|
|
|
|
|
|
# These Exceptions are temporary, using them as flow control until we can get a better solution.
|
|
# DO NOT USE as they will probably be removed soon.
|
|
# We will port the action modules in our tree to use a context manager instead.
|
|
class AnsibleAction(AnsibleRuntimeError):
|
|
''' Base Exception for Action plugin flow control '''
|
|
|
|
def __init__(self, message="", obj=None, show_content=True, suppress_extended_error=False, orig_exc=None, result=None):
|
|
|
|
super(AnsibleAction, self).__init__(message=message, obj=obj, show_content=show_content,
|
|
suppress_extended_error=suppress_extended_error, orig_exc=orig_exc)
|
|
if result is None:
|
|
self.result = {}
|
|
else:
|
|
self.result = result
|
|
|
|
|
|
class AnsibleActionSkip(AnsibleAction):
|
|
''' an action runtime skip'''
|
|
|
|
def __init__(self, message="", obj=None, show_content=True, suppress_extended_error=False, orig_exc=None, result=None):
|
|
super(AnsibleActionSkip, self).__init__(message=message, obj=obj, show_content=show_content,
|
|
suppress_extended_error=suppress_extended_error, orig_exc=orig_exc, result=result)
|
|
self.result.update({'skipped': True, 'msg': message})
|
|
|
|
|
|
class AnsibleActionFail(AnsibleAction):
|
|
''' an action runtime failure'''
|
|
def __init__(self, message="", obj=None, show_content=True, suppress_extended_error=False, orig_exc=None, result=None):
|
|
super(AnsibleActionFail, self).__init__(message=message, obj=obj, show_content=show_content,
|
|
suppress_extended_error=suppress_extended_error, orig_exc=orig_exc, result=result)
|
|
self.result.update({'failed': True, 'msg': message, 'exception': traceback.format_exc()})
|
|
|
|
|
|
class _AnsibleActionDone(AnsibleAction):
|
|
''' an action runtime early exit'''
|
|
pass
|
|
|
|
|
|
class AnsiblePluginError(AnsibleError):
|
|
''' base class for Ansible plugin-related errors that do not need AnsibleError contextual data '''
|
|
def __init__(self, message=None, plugin_load_context=None):
|
|
super(AnsiblePluginError, self).__init__(message)
|
|
self.plugin_load_context = plugin_load_context
|
|
|
|
|
|
class AnsiblePluginRemovedError(AnsiblePluginError):
|
|
''' a requested plugin has been removed '''
|
|
pass
|
|
|
|
|
|
class AnsiblePluginCircularRedirect(AnsiblePluginError):
|
|
'''a cycle was detected in plugin redirection'''
|
|
pass
|
|
|
|
|
|
class AnsibleCollectionUnsupportedVersionError(AnsiblePluginError):
|
|
'''a collection is not supported by this version of Ansible'''
|
|
pass
|
|
|
|
|
|
class AnsibleFilterTypeError(AnsibleTemplateError, TypeError):
|
|
''' a Jinja filter templating failure due to bad type'''
|
|
pass
|