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webmessage_mailutils.py
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Sun, Sep 1, 07:59
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text/x-python
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Tue, Sep 3, 07:59 (1 d, 23 h)
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R3600 invenio-infoscience
webmessage_mailutils.py
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# -*- coding: utf-8 -*-
## This file is part of CDS Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
##
## CDS Invenio 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 2 of the
## License, or (at your option) any later version.
##
## CDS Invenio 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 CDS Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
""" Library for quoting text, email style """
__revision__
=
"$Id$"
from
invenio.htmlutils
import
HTMLWasher
def
email_quoted_txt2html
(
text
,
tabs_before
=
0
,
indent_txt
=
'>>'
,
linebreak_txt
=
"
\n
"
,
indent_html
=
(
'<div class="commentbox">'
,
"</div>"
),
linebreak_html
=
'<br/>'
):
"""
Takes a typical mail quoted text, e.g.:
hello,
you told me:
>> Your mother was a hamster and your father smelt of elderberries
I must tell you that I'm not convinced. Then in this discussion:
>>>> Is there someone else up there we could talk to?
>> No. Now, go away, or I shall taunt you a second time-a!
I think we're not going to be friends!
and return an html formatted output, e.g.:
hello,<br/>
you told me:<br/>
<div>
Your mother was a hamster and your father smelt of elderberries
</div>
I must tell you that I'm not convinced. Then in this discussion:
<div>
<div>
Is there someone else up there we could talk to?
</div>
No. Now, go away, or I shall taunt you a second time-a!
</div>
I think we're not going to be friends!
@param text: the text in quoted format
@param tabs_before: number of tabulations before each line
@param indent_txt: quote separator in email (default:'>>')
@param linebreak_txt: line separator in email (default: '\n')
@param indent_html: tuple of (opening, closing) html tags.
default: ('<div class="commentbox">', "</div>")
@param linebreak_html: line separator in html (default: '<br/>')
@return: string containing html formatted output
"""
washer
=
HTMLWasher
()
final_body
=
""
nb_indent
=
0
text
=
text
.
strip
(
'
\n
'
)
lines
=
text
.
split
(
linebreak_txt
)
for
line
in
lines
:
new_nb_indent
=
0
while
True
:
if
line
.
startswith
(
indent_txt
):
new_nb_indent
+=
1
line
=
line
[
len
(
indent_txt
):]
else
:
break
if
(
new_nb_indent
>
nb_indent
):
for
dummy
in
range
(
nb_indent
,
new_nb_indent
):
final_body
+=
tabs_before
*
"
\t
"
+
indent_html
[
0
]
+
"
\n
"
tabs_before
+=
1
elif
(
new_nb_indent
<
nb_indent
):
for
dummy
in
range
(
new_nb_indent
,
nb_indent
):
tabs_before
-=
1
final_body
+=
(
tabs_before
)
*
"
\t
"
+
indent_html
[
1
]
+
"
\n
"
else
:
final_body
+=
(
tabs_before
)
*
"
\t
"
line
=
washer
.
wash
(
line
)
final_body
+=
tabs_before
*
"
\t
"
+
line
final_body
+=
linebreak_html
+
"
\n
"
nb_indent
=
new_nb_indent
for
dummy
in
range
(
0
,
nb_indent
):
tabs_before
-=
1
final_body
+=
(
tabs_before
)
*
"
\t
"
+
"</div>
\n
"
return
final_body
def
email_quote_txt
(
text
,
indent_txt
=
'>>'
,
linebreak_input
=
"
\n
"
,
linebreak_output
=
"
\n
"
):
"""
Takes a text and returns it in a typical mail quoted format, e.g.:
C'est un lapin, lapin de bois.
>>Quoi?
Un cadeau.
>>What?
A present.
>>Oh, un cadeau.
will return:
>>C'est un lapin, lapin de bois.
>>>>Quoi?
>>Un cadeau.
>>>>What?
>>A present.
>>>>Oh, un cadeau.
@param text: the string to quote
@param indent_txt: the string used for quoting (default: '>>')
@param linebreak_input: in the text param, string used for linebreaks
default: '\n'
@param linebreak_output: linebreak used for output
default: '\n'
@return: the text as a quoted string
"""
if
(
text
==
""
):
return
""
lines
=
text
.
split
(
linebreak_input
)
text
=
""
for
line
in
lines
:
text
+=
indent_txt
+
line
+
linebreak_output
return
text
def
escape_email_quoted_text
(
text
,
indent_txt
=
'>>'
,
linebreak_txt
=
'
\n
'
):
"""Escape text using an email-like indenting rule.
As an example, this text:
>>Brave Sir Robin ran away...
<img src="malicious_script />*No!*
>>bravely ran away away...
I didn't!*<script>malicious code</script>
>>When danger reared its ugly head, he bravely turned his tail and fled.
<form onload="malicious"></form>*I never did!*
will be escaped like this:
>>Brave Sir Robin ran away...
<img src="malicious_script />*No!*
>>bravely ran away away...
I didn't!*<script>malicious code</script>
>>When danger reared its ugly head, he bravely turned his tail and fled.
<form onload="malicious"></form>*I never did!*
"""
washer
=
HTMLWasher
()
lines
=
text
.
split
(
linebreak_txt
)
output
=
''
for
line
in
lines
:
line
=
line
.
strip
()
nb_indent
=
0
while
True
:
if
line
.
startswith
(
indent_txt
):
nb_indent
+=
1
line
=
line
[
len
(
indent_txt
):]
else
:
break
output
+=
(
nb_indent
*
indent_txt
)
+
washer
.
wash
(
line
,
render_unallowed_tags
=
True
)
+
linebreak_txt
nb_indent
=
0
return
output
[:
-
1
]
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