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web_editor/models/ir_qweb_fields.py

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2024-05-03 12:47:49 +03:00
# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.
"""
Web_editor-context rendering needs to add some metadata to rendered and allow to edit fields,
as well as render a few fields differently.
Also, adds methods to convert values back to Odoo models.
"""
import babel
import base64
import io
import json
import logging
import os
import re
import pytz
import requests
from datetime import datetime
from lxml import etree, html
from PIL import Image as I
from werkzeug import urls
import odoo.modules
from odoo import _, api, models, fields
from odoo.exceptions import UserError, ValidationError
from odoo.tools import ustr, posix_to_ldml, pycompat
from odoo.tools import html_escape as escape
from odoo.tools.misc import file_open, get_lang, babel_locale_parse
REMOTE_CONNECTION_TIMEOUT = 2.5
logger = logging.getLogger(__name__)
class IrQWeb(models.AbstractModel):
""" IrQWeb object for rendering editor stuff
"""
_inherit = 'ir.qweb'
def _compile_node(self, el, compile_context, indent):
snippet_key = compile_context.get('snippet-key')
if snippet_key == compile_context['template'] \
or compile_context.get('snippet-sub-call-key') == compile_context['template']:
# Get the path of element to only consider the first node of the
# snippet template content (ignoring all ancestors t elements which
# are not t-call ones)
nb_real_elements_in_hierarchy = 0
node = el
while node is not None and nb_real_elements_in_hierarchy < 2:
if node.tag != 't' or 't-call' in node.attrib:
nb_real_elements_in_hierarchy += 1
node = node.getparent()
if nb_real_elements_in_hierarchy == 1:
# The first node might be a call to a sub template
sub_call = el.get('t-call')
if sub_call:
el.set('t-options', f"{{'snippet-key': '{snippet_key}', 'snippet-sub-call-key': '{sub_call}'}}")
# If it already has a data-snippet it is a saved or an inherited snippet.
# Do not override it.
elif 'data-snippet' not in el.attrib:
el.attrib['data-snippet'] = snippet_key.split('.', 1)[-1]
return super()._compile_node(el, compile_context, indent)
# compile directives
def _compile_directive_snippet(self, el, compile_context, indent):
key = el.attrib.pop('t-snippet')
el.set('t-call', key)
snippet_lang = self._context.get('snippet_lang')
if snippet_lang:
el.set('t-lang', f"'{snippet_lang}'")
el.set('t-options', f"{{'snippet-key': {key!r}}}")
view = self.env['ir.ui.view']._get(key).sudo()
name = el.attrib.pop('string', view.name)
thumbnail = el.attrib.pop('t-thumbnail', "oe-thumbnail")
# Forbid sanitize contains the specific reason:
# - "true": always forbid
# - "form": forbid if forms are sanitized
forbid_sanitize = el.attrib.pop('t-forbid-sanitize', None)
div = '<div name="%s" data-oe-type="snippet" data-oe-thumbnail="%s" data-oe-snippet-id="%s" data-oe-keywords="%s" %s>' % (
escape(pycompat.to_text(name)),
escape(pycompat.to_text(thumbnail)),
escape(pycompat.to_text(view.id)),
escape(pycompat.to_text(el.findtext('keywords'))),
f'data-oe-forbid-sanitize="{forbid_sanitize}"' if forbid_sanitize else '',
)
self._append_text(div, compile_context)
code = self._compile_node(el, compile_context, indent)
self._append_text('</div>', compile_context)
return code
def _compile_directive_snippet_call(self, el, compile_context, indent):
key = el.attrib.pop('t-snippet-call')
el.set('t-call', key)
el.set('t-options', f"{{'snippet-key': {key!r}}}")
return self._compile_node(el, compile_context, indent)
def _compile_directive_install(self, el, compile_context, indent):
key = el.attrib.pop('t-install')
thumbnail = el.attrib.pop('t-thumbnail', 'oe-thumbnail')
if self.user_has_groups('base.group_system'):
module = self.env['ir.module.module'].search([('name', '=', key)])
if not module or module.state == 'installed':
return []
name = el.attrib.get('string') or 'Snippet'
div = '<div name="%s" data-oe-type="snippet" data-module-id="%s" data-oe-thumbnail="%s"><section/></div>' % (
escape(pycompat.to_text(name)),
module.id,
escape(pycompat.to_text(thumbnail))
)
self._append_text(div, compile_context)
return []
def _compile_directive_placeholder(self, el, compile_context, indent):
el.set('t-att-placeholder', el.attrib.pop('t-placeholder'))
return []
# order and ignore
def _directives_eval_order(self):
directives = super()._directives_eval_order()
# Insert before "att" as those may rely on static attributes like
# "string" and "att" clears all of those
index = directives.index('att') - 1
directives.insert(index, 'placeholder')
directives.insert(index, 'snippet')
directives.insert(index, 'snippet-call')
directives.insert(index, 'install')
return directives
def _get_template_cache_keys(self):
return super()._get_template_cache_keys() + ['snippet_lang']
#------------------------------------------------------
# QWeb fields
#------------------------------------------------------
class Field(models.AbstractModel):
_name = 'ir.qweb.field'
_description = 'Qweb Field'
_inherit = 'ir.qweb.field'
@api.model
def attributes(self, record, field_name, options, values):
attrs = super(Field, self).attributes(record, field_name, options, values)
field = record._fields[field_name]
placeholder = options.get('placeholder') or getattr(field, 'placeholder', None)
if placeholder:
attrs['placeholder'] = placeholder
if options['translate'] and field.type in ('char', 'text'):
lang = record.env.lang or 'en_US'
base_lang = record._get_base_lang()
if lang == base_lang:
attrs['data-oe-translation-state'] = 'translated'
else:
base_value = record.with_context(lang=base_lang)[field_name]
value = record[field_name]
attrs['data-oe-translation-state'] = 'translated' if base_value != value else 'to_translate'
return attrs
def value_from_string(self, value):
return value
@api.model
def from_html(self, model, field, element):
return self.value_from_string(element.text_content().strip())
class Integer(models.AbstractModel):
_name = 'ir.qweb.field.integer'
_description = 'Qweb Field Integer'
_inherit = 'ir.qweb.field.integer'
@api.model
def from_html(self, model, field, element):
lang = self.user_lang()
value = element.text_content().strip()
return int(value.replace(lang.thousands_sep or '', ''))
class Float(models.AbstractModel):
_name = 'ir.qweb.field.float'
_description = 'Qweb Field Float'
_inherit = 'ir.qweb.field.float'
@api.model
def from_html(self, model, field, element):
lang = self.user_lang()
value = element.text_content().strip()
return float(value.replace(lang.thousands_sep or '', '')
.replace(lang.decimal_point, '.'))
class ManyToOne(models.AbstractModel):
_name = 'ir.qweb.field.many2one'
_description = 'Qweb Field Many to One'
_inherit = 'ir.qweb.field.many2one'
@api.model
def attributes(self, record, field_name, options, values):
attrs = super(ManyToOne, self).attributes(record, field_name, options, values)
if options.get('inherit_branding'):
many2one = record[field_name]
if many2one:
attrs['data-oe-many2one-id'] = many2one.id
attrs['data-oe-many2one-model'] = many2one._name
if options.get('null_text'):
attrs['data-oe-many2one-allowreset'] = 1
if not many2one:
attrs['data-oe-many2one-model'] = record._fields[field_name].comodel_name
return attrs
@api.model
def from_html(self, model, field, element):
Model = self.env[element.get('data-oe-model')]
id = int(element.get('data-oe-id'))
M2O = self.env[field.comodel_name]
field_name = element.get('data-oe-field')
many2one_id = int(element.get('data-oe-many2one-id'))
allow_reset = element.get('data-oe-many2one-allowreset')
if allow_reset and not many2one_id:
# Reset the id of the many2one
Model.browse(id).write({field_name: False})
return None
record = many2one_id and M2O.browse(many2one_id)
if record and record.exists():
# save the new id of the many2one
Model.browse(id).write({field_name: many2one_id})
return None
class Contact(models.AbstractModel):
_name = 'ir.qweb.field.contact'
_description = 'Qweb Field Contact'
_inherit = 'ir.qweb.field.contact'
@api.model
def attributes(self, record, field_name, options, values):
attrs = super(Contact, self).attributes(record, field_name, options, values)
if options.get('inherit_branding'):
attrs['data-oe-contact-options'] = json.dumps(options)
return attrs
# helper to call the rendering of contact field
@api.model
def get_record_to_html(self, ids, options=None):
return self.value_to_html(self.env['res.partner'].search([('id', '=', ids[0])]), options=options)
class Date(models.AbstractModel):
_name = 'ir.qweb.field.date'
_description = 'Qweb Field Date'
_inherit = 'ir.qweb.field.date'
@api.model
def attributes(self, record, field_name, options, values):
attrs = super(Date, self).attributes(record, field_name, options, values)
if options.get('inherit_branding'):
attrs['data-oe-original'] = record[field_name]
if record._fields[field_name].type == 'datetime':
attrs = self.env['ir.qweb.field.datetime'].attributes(record, field_name, options, values)
attrs['data-oe-type'] = 'datetime'
return attrs
lg = self.env['res.lang']._lang_get(self.env.user.lang) or get_lang(self.env)
locale = babel_locale_parse(lg.code)
babel_format = value_format = posix_to_ldml(lg.date_format, locale=locale)
if record[field_name]:
date = fields.Date.from_string(record[field_name])
value_format = pycompat.to_text(babel.dates.format_date(date, format=babel_format, locale=locale))
attrs['data-oe-original-with-format'] = value_format
return attrs
@api.model
def from_html(self, model, field, element):
value = element.text_content().strip()
if not value:
return False
lg = self.env['res.lang']._lang_get(self.env.user.lang) or get_lang(self.env)
date = datetime.strptime(value, lg.date_format)
return fields.Date.to_string(date)
class DateTime(models.AbstractModel):
_name = 'ir.qweb.field.datetime'
_description = 'Qweb Field Datetime'
_inherit = 'ir.qweb.field.datetime'
@api.model
def attributes(self, record, field_name, options, values):
attrs = super(DateTime, self).attributes(record, field_name, options, values)
if options.get('inherit_branding'):
value = record[field_name]
lg = self.env['res.lang']._lang_get(self.env.user.lang) or get_lang(self.env)
locale = babel_locale_parse(lg.code)
babel_format = value_format = posix_to_ldml('%s %s' % (lg.date_format, lg.time_format), locale=locale)
tz = record.env.context.get('tz') or self.env.user.tz
if isinstance(value, str):
value = fields.Datetime.from_string(value)
if value:
# convert from UTC (server timezone) to user timezone
value = fields.Datetime.context_timestamp(self.with_context(tz=tz), timestamp=value)
value_format = pycompat.to_text(babel.dates.format_datetime(value, format=babel_format, locale=locale))
value = fields.Datetime.to_string(value)
attrs['data-oe-original'] = value
attrs['data-oe-original-with-format'] = value_format
attrs['data-oe-original-tz'] = tz
return attrs
@api.model
def from_html(self, model, field, element):
value = element.text_content().strip()
if not value:
return False
# parse from string to datetime
lg = self.env['res.lang']._lang_get(self.env.user.lang) or get_lang(self.env)
try:
datetime_format = f'{lg.date_format} {lg.time_format}'
dt = datetime.strptime(value, datetime_format)
except ValueError:
raise ValidationError(_("The datetime %s does not match the format %s", value, datetime_format))
# convert back from user's timezone to UTC
tz_name = element.attrib.get('data-oe-original-tz') or self.env.context.get('tz') or self.env.user.tz
if tz_name:
try:
user_tz = pytz.timezone(tz_name)
utc = pytz.utc
dt = user_tz.localize(dt).astimezone(utc)
except Exception:
logger.warning(
"Failed to convert the value for a field of the model"
" %s back from the user's timezone (%s) to UTC",
model, tz_name,
exc_info=True)
# format back to string
return fields.Datetime.to_string(dt)
class Text(models.AbstractModel):
_name = 'ir.qweb.field.text'
_description = 'Qweb Field Text'
_inherit = 'ir.qweb.field.text'
@api.model
def from_html(self, model, field, element):
return html_to_text(element)
class Selection(models.AbstractModel):
_name = 'ir.qweb.field.selection'
_description = 'Qweb Field Selection'
_inherit = 'ir.qweb.field.selection'
@api.model
def from_html(self, model, field, element):
value = element.text_content().strip()
selection = field.get_description(self.env)['selection']
for k, v in selection:
if isinstance(v, str):
v = ustr(v)
if value == v:
return k
raise ValueError(u"No value found for label %s in selection %s" % (
value, selection))
class HTML(models.AbstractModel):
_name = 'ir.qweb.field.html'
_description = 'Qweb Field HTML'
_inherit = 'ir.qweb.field.html'
@api.model
def attributes(self, record, field_name, options, values=None):
attrs = super().attributes(record, field_name, options, values)
if options.get('inherit_branding'):
field = record._fields[field_name]
if field.sanitize:
if field.sanitize_overridable:
if record.user_has_groups('base.group_sanitize_override'):
# Don't mark the field as 'sanitize' if the sanitize
# is defined as overridable and the user has the right
# to do so
return attrs
else:
try:
field.convert_to_column(record[field_name], record)
except UserError:
# The field contains element(s) that would be
# removed if sanitized. It means that someone who
# was part of a group allowing to bypass the
# sanitation saved that field previously. Mark the
# field as not editable.
attrs['data-oe-sanitize-prevent-edition'] = 1
return attrs
# The field edition is not fully prevented and the sanitation cannot be bypassed
attrs['data-oe-sanitize'] = 'no_block' if field.sanitize_attributes else 1 if field.sanitize_form else 'allow_form'
return attrs
@api.model
def from_html(self, model, field, element):
content = []
if element.text:
content.append(element.text)
content.extend(html.tostring(child, encoding='unicode')
for child in element.iterchildren(tag=etree.Element))
return '\n'.join(content)
class Image(models.AbstractModel):
"""
Widget options:
``class``
set as attribute on the generated <img> tag
"""
_name = 'ir.qweb.field.image'
_description = 'Qweb Field Image'
_inherit = 'ir.qweb.field.image'
local_url_re = re.compile(r'^/(?P<module>[^]]+)/static/(?P<rest>.+)$')
redirect_url_re = re.compile(r'\/web\/image\/\d+-redirect\/')
@api.model
def from_html(self, model, field, element):
if element.find('img') is None:
return False
url = element.find('img').get('src')
url_object = urls.url_parse(url)
if url_object.path.startswith('/web/image'):
fragments = url_object.path.split('/')
query = url_object.decode_query()
url_id = fragments[3].split('-')[0]
# ir.attachment image urls: /web/image/<id>[-<checksum>][/...]
if url_id.isdigit():
model = 'ir.attachment'
oid = url_id
field = 'datas'
# url of binary field on model: /web/image/<model>/<id>/<field>[/...]
else:
model = query.get('model', fragments[3])
oid = query.get('id', fragments[4])
field = query.get('field', fragments[5])
item = self.env[model].browse(int(oid))
if self.redirect_url_re.match(url_object.path):
return self.load_remote_url(item.url)
return item[field]
if self.local_url_re.match(url_object.path):
return self.load_local_url(url)
return self.load_remote_url(url)
def load_local_url(self, url):
match = self.local_url_re.match(urls.url_parse(url).path)
rest = match.group('rest')
path = os.path.join(
match.group('module'), 'static', rest)
try:
with file_open(path, 'rb') as f:
# force complete image load to ensure it's valid image data
image = I.open(f)
image.load()
f.seek(0)
return base64.b64encode(f.read())
except Exception:
logger.exception("Failed to load local image %r", url)
return None
def load_remote_url(self, url):
try:
# should probably remove remote URLs entirely:
# * in fields, downloading them without blowing up the server is a
# challenge
# * in views, may trigger mixed content warnings if HTTPS CMS
# linking to HTTP images
# implement drag & drop image upload to mitigate?
req = requests.get(url, timeout=REMOTE_CONNECTION_TIMEOUT)
# PIL needs a seekable file-like image so wrap result in IO buffer
image = I.open(io.BytesIO(req.content))
# force a complete load of the image data to validate it
image.load()
except Exception:
logger.warning("Failed to load remote image %r", url, exc_info=True)
return None
# don't use original data in case weird stuff was smuggled in, with
# luck PIL will remove some of it?
out = io.BytesIO()
image.save(out, image.format)
return base64.b64encode(out.getvalue())
class Monetary(models.AbstractModel):
_name = 'ir.qweb.field.monetary'
_inherit = 'ir.qweb.field.monetary'
@api.model
def from_html(self, model, field, element):
lang = self.user_lang()
value = element.find('span').text_content().strip()
return float(value.replace(lang.thousands_sep or '', '')
.replace(lang.decimal_point, '.'))
class Duration(models.AbstractModel):
_name = 'ir.qweb.field.duration'
_description = 'Qweb Field Duration'
_inherit = 'ir.qweb.field.duration'
@api.model
def attributes(self, record, field_name, options, values):
attrs = super(Duration, self).attributes(record, field_name, options, values)
if options.get('inherit_branding'):
attrs['data-oe-original'] = record[field_name]
return attrs
@api.model
def from_html(self, model, field, element):
value = element.text_content().strip()
# non-localized value
return float(value)
class RelativeDatetime(models.AbstractModel):
_name = 'ir.qweb.field.relative'
_description = 'Qweb Field Relative'
_inherit = 'ir.qweb.field.relative'
# get formatting from ir.qweb.field.relative but edition/save from datetime
class QwebView(models.AbstractModel):
_name = 'ir.qweb.field.qweb'
_description = 'Qweb Field qweb'
_inherit = 'ir.qweb.field.qweb'
def html_to_text(element):
""" Converts HTML content with HTML-specified line breaks (br, p, div, ...)
in roughly equivalent textual content.
Used to replace and fixup the roundtripping of text and m2o: when using
libxml 2.8.0 (but not 2.9.1) and parsing HTML with lxml.html.fromstring
whitespace text nodes (text nodes composed *solely* of whitespace) are
stripped out with no recourse, and fundamentally relying on newlines
being in the text (e.g. inserted during user edition) is probably poor form
anyway.
-> this utility function collapses whitespace sequences and replaces
nodes by roughly corresponding linebreaks
* p are pre-and post-fixed by 2 newlines
* br are replaced by a single newline
* block-level elements not already mentioned are pre- and post-fixed by
a single newline
ought be somewhat similar (but much less high-tech) to aaronsw's html2text.
the latter produces full-blown markdown, our text -> html converter only
replaces newlines by <br> elements at this point so we're reverting that,
and a few more newline-ish elements in case the user tried to add
newlines/paragraphs into the text field
:param element: lxml.html content
:returns: corresponding pure-text output
"""
# output is a list of str | int. Integers are padding requests (in minimum
# number of newlines). When multiple padding requests, fold them into the
# biggest one
output = []
_wrap(element, output)
# remove any leading or tailing whitespace, replace sequences of
# (whitespace)\n(whitespace) by a single newline, where (whitespace) is a
# non-newline whitespace in this case
return re.sub(
r'[ \t\r\f]*\n[ \t\r\f]*',
'\n',
''.join(_realize_padding(output)).strip())
_PADDED_BLOCK = set('p h1 h2 h3 h4 h5 h6'.split())
# https://developer.mozilla.org/en-US/docs/HTML/Block-level_elements minus p
_MISC_BLOCK = set((
'address article aside audio blockquote canvas dd dl div figcaption figure'
' footer form header hgroup hr ol output pre section tfoot ul video'
).split())
def _collapse_whitespace(text):
""" Collapses sequences of whitespace characters in ``text`` to a single
space
"""
return re.sub('\s+', ' ', text)
def _realize_padding(it):
""" Fold and convert padding requests: integers in the output sequence are
requests for at least n newlines of padding. Runs thereof can be collapsed
into the largest requests and converted to newlines.
"""
padding = 0
for item in it:
if isinstance(item, int):
padding = max(padding, item)
continue
if padding:
yield '\n' * padding
padding = 0
yield item
# leftover padding irrelevant as the output will be stripped
def _wrap(element, output, wrapper=''):
""" Recursively extracts text from ``element`` (via _element_to_text), and
wraps it all in ``wrapper``. Extracted text is added to ``output``
:type wrapper: basestring | int
"""
output.append(wrapper)
if element.text:
output.append(_collapse_whitespace(element.text))
for child in element:
_element_to_text(child, output)
output.append(wrapper)
def _element_to_text(e, output):
if e.tag == 'br':
output.append('\n')
elif e.tag in _PADDED_BLOCK:
_wrap(e, output, 2)
elif e.tag in _MISC_BLOCK:
_wrap(e, output, 1)
else:
# inline
_wrap(e, output)
if e.tail:
output.append(_collapse_whitespace(e.tail))
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