769eafb483
Flectra is Forked from Odoo v11 commit : (6135e82d73
)
116 lines
3.0 KiB
Python
116 lines
3.0 KiB
Python
""" View validation code (using assertions, not the RNG schema). """
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import collections
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import logging
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import os
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from lxml import etree
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from odoo import tools
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_logger = logging.getLogger(__name__)
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_validators = collections.defaultdict(list)
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_relaxng_cache = {}
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def valid_view(arch):
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for pred in _validators[arch.tag]:
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if not pred(arch):
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_logger.error("Invalid XML: %s", pred.__doc__)
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return False
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return True
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def validate(*view_types):
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""" Registers a view-validation function for the specific view types
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"""
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def decorator(fn):
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for arch in view_types:
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_validators[arch].append(fn)
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return fn
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return decorator
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def relaxng(view_type):
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""" Return a validator for the given view type, or None. """
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if view_type not in _relaxng_cache:
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with tools.file_open(os.path.join('base', 'rng', '%s_view.rng' % view_type)) as frng:
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try:
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relaxng_doc = etree.parse(frng)
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_relaxng_cache[view_type] = etree.RelaxNG(relaxng_doc)
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except Exception:
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_logger.exception('Failed to load RelaxNG XML schema for views validation')
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_relaxng_cache[view_type] = None
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return _relaxng_cache[view_type]
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@validate('calendar', 'diagram', 'gantt', 'graph', 'pivot', 'search', 'tree')
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def schema_valid(arch):
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""" Get RNG validator and validate RNG file."""
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validator = relaxng(arch.tag)
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if validator and not validator.validate(arch):
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result = True
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for error in validator.error_log:
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_logger.error(tools.ustr(error))
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result = False
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return result
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return True
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@validate('form')
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def valid_page_in_book(arch):
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"""A `page` node must be below a `notebook` node."""
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return not arch.xpath('//page[not(ancestor::notebook)]')
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@validate('graph')
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def valid_field_in_graph(arch):
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""" Children of ``graph`` can only be ``field`` """
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return all(
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child.tag == 'field'
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for child in arch.xpath('/graph/*')
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)
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@validate('tree')
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def valid_field_in_tree(arch):
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""" Children of ``tree`` view must be ``field`` or ``button``."""
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return all(
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child.tag in ('field', 'button')
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for child in arch.xpath('/tree/*')
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)
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@validate('form', 'graph', 'tree')
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def valid_att_in_field(arch):
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""" ``field`` nodes must all have a ``@name`` """
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return not arch.xpath('//field[not(@name)]')
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@validate('form')
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def valid_att_in_label(arch):
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""" ``label`` nodes must have a ``@for`` or a ``@string`` """
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return not arch.xpath('//label[not(@for or @string)]')
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@validate('form')
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def valid_att_in_form(arch):
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return True
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@validate('form')
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def valid_type_in_colspan(arch):
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"""A `colspan` attribute must be an `integer` type."""
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return all(
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attrib.isdigit()
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for attrib in arch.xpath('//@colspan')
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)
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@validate('form')
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def valid_type_in_col(arch):
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"""A `col` attribute must be an `integer` type."""
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return all(
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attrib.isdigit()
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for attrib in arch.xpath('//@col')
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)
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