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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from secretary import Renderer, parseString
from xml.parsers.expat import ExpatError, ErrorString
from datetime import datetime
import locale
from PIL import Image
import re
from django.conf import settings
RE_UNITS = re.compile("([.0-9]+)([a-z]+)")
def parse_value_unit(value):
m = RE_UNITS.match(value)
if not m:
return None, None
value, unit = m.groups()
value = float(value)
return value, unit
def replace_line_breaks(value):
return (value or "").replace("\r\n", "\n")
def capfirst_filter(value):
return value[0].upper() + value[1:] if value else value
def lowerfirst_filter(value):
return value[0].lower() + value[1:] if value else value
RE_CAP = re.compile(r"[^-' ]+")
SEP = ("un", "une", "le", "la", "les", "lez", "d", "l", "de", "des", "du")
def capitalize_filter(value):
if not value:
return ""
value = value.lower()
res = ""
for m in RE_CAP.finditer(value):
start = m.start()
if start:
res += value[start - 1]
v = m.group()
if v not in SEP:
v = v[0].upper() + v[1:]
res += v
return res
def human_date_filter(value):
try:
value = datetime.strptime(value, "%Y-%m-%d")
except ValueError:
return ""
language_code = settings.LANGUAGE_CODE.split("-")
language_code = language_code[0] + "_" + language_code[1].upper()
for language_suffix in (".utf8", ""):
try:
locale.setlocale(locale.LC_TIME, language_code + language_suffix)
break
except locale.Error:
pass
return value.strftime(settings.DATE_FORMAT)
def splitpart(value, index, char=",", merge_end=False):
if not value or not index:
return ""
splited = value.split(char)
if len(splited) <= index:
return ""
if not merge_end:
return splited[index]
return char.join(splited[index:])
class IshtarSecretaryRenderer(Renderer):
def __init__(self, *args, **kwargs):
super(IshtarSecretaryRenderer, self).__init__(*args, **kwargs)
self.media_callback = self.ishtar_media_loader
self.media_path = settings.MEDIA_ROOT
self.environment.filters["human_date"] = human_date_filter
self.environment.filters["capfirst"] = capfirst_filter
self.environment.filters["lowerfirst"] = lowerfirst_filter
self.environment.filters["capitalize"] = capitalize_filter
self.environment.filters["replace_line_breaks"] = replace_line_breaks
self.environment.filters["splitpart"] = splitpart
def ishtar_media_loader(self, media, *args, **kwargs):
res = self.fs_loader(media, *args, **kwargs)
if not res or not res[0]:
return
image_file, mime = res
if "width" in kwargs:
kwargs["frame_attrs"]["svg:width"] = kwargs["width"]
if "height" in kwargs:
kwargs["frame_attrs"]["svg:height"] = kwargs["height"]
if "keep_ratio" in args:
image = Image.open(image_file.name)
width, width_unit = parse_value_unit(kwargs["frame_attrs"]["svg:width"])
height, height_unit = parse_value_unit(kwargs["frame_attrs"]["svg:height"])
if "height" not in kwargs and width:
new_height = width * image.height / image.width
kwargs["frame_attrs"]["svg:height"] = "{}{}".format(
new_height, width_unit
)
if "width" not in kwargs and height:
new_width = height * image.width / image.height
kwargs["frame_attrs"]["svg:width"] = "{}{}".format(
new_width, height_unit
)
return image_file, mime
def _render_xml(self, xml_document, **kwargs):
# Prepare the xml object to be processed by jinja2
self.log.debug("Rendering XML object")
template_string = ""
try:
self.template_images = dict()
self._prepare_document_tags(xml_document)
xml_source = xml_document.toxml()
xml_source = xml_source.encode("ascii", "xmlcharrefreplace")
jinja_template = self.environment.from_string(
self._unescape_entities(xml_source.decode("utf-8"))
)
result = jinja_template.render(**kwargs)
final_xml = parseString(result.encode("ascii", "xmlcharrefreplace"))
if self.template_images:
self.replace_images(final_xml)
return final_xml
except ExpatError as e:
if "result" not in locals():
result = xml_source
### changes
try:
near = result.split("\n")[e.lineno - 1][e.offset - 200 : e.offset + 200]
except IndexError:
near = "..."
print(result)
### endchanges
raise ExpatError(
'ExpatError "%s" at line %d, column %d\nNear of: "[...]%s[...]"'
% (ErrorString(e.code), e.lineno, e.offset, near)
)
except:
self.log.error(
"Error rendering template:\n%s",
xml_document.toprettyxml(),
exc_info=True,
)
self.log.error("Unescaped template was:\n{0}".format(template_string))
raise
finally:
self.log.debug("Rendering xml object finished")
|
