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48 lines
1.4 KiB
48 lines
1.4 KiB
from django import template
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from django.utils.safestring import mark_safe
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from urllib.request import quote as urlencode
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register = template.Library()
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@register.simple_tag
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def mailurl(*, subject=None, body=None, to=[], cc=[], bcc=[]):
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"""Tag na vytváření správně zakódované mailto: adresy
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Ref: RFC 6068, <https://en.wikipedia.org/wiki/Mailto>"""
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if isinstance(to, str):
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to = [to]
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if isinstance(cc, str):
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cc = [cc]
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if isinstance(bcc, str):
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bcc = [bcc]
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assert isinstance(to, list)
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assert isinstance(cc, list)
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assert isinstance(bcc, list)
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# FIXME: adresa není správně zakódovaná, rozbije se to na adresách s divnými znaky
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parts = [
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f'mailto:{str.join(",", to)}',
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]
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if len(to) + len(cc) + len(bcc) < 1:
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raise ValueError('Cannot mail to empty set of people')
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if subject:
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parts.append(f'subject={urlencode(subject)}')
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if body:
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parts.append(f'body={urlencode(body)}')
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if len(cc) > 0:
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parts.append(f'cc={str.join(",", cc)}')
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if len(bcc) > 0:
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parts.append(f'bcc={str.join(",", bcc)}')
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if len(parts) > 1:
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url = parts[0] + '?' + str.join('&', parts[1:])
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else:
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url = parts[0]
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return url
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@register.simple_tag
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def maillink(text, subject=None, body=None, to=[], cc=[], bcc=[], attrs=None):
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url = mailurl(subject=subject, body=body, to=to, cc=cc, bcc=bcc)
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if not attrs: attrs = ''
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mezera = ' '*bool(attrs)
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full_link = f'<a href="{url}"{mezera}{attrs}>{text}</a>'
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return mark_safe(full_link)
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