diff --git a/src/plugins/plugin_misc_text_syntaxes.py b/src/plugins/plugin_misc_text_syntaxes.py
new file mode 100755
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--- /dev/null
+++ b/src/plugins/plugin_misc_text_syntaxes.py
@@ -0,0 +1,187 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# SAT plugin for managing various text syntaxes
+# Copyright (C) 2009, 2010, 2011, 2012, 2013 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program 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 Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see .
+
+from logging import debug, info, error
+
+from wokkel import disco, pubsub
+from twisted.internet import defer
+from twisted.internet.threads import deferToThread
+from lxml.html import defs, clean
+
+CATEGORY = "Composition"
+NAME = "Syntax"
+_SYNTAX_XHTML = "XHTML"
+
+
+PLUGIN_INFO = {
+ "name": "Text syntaxes",
+ "import_name": "TEXT-SYNTAXES",
+ "type": "MISC",
+ "protocols": [],
+ "dependencies": [],
+ "main": "TextSyntaxes",
+ "handler": "no",
+ "description": _("""Management of various text syntaxes (XHTML-IM, Markdown, etc)""")
+}
+
+class UnknownSyntax(Exception):
+ pass
+
+class TextSyntaxes(object):
+ """ Text conversion class
+ XHTML utf-8 is used as intermediate language for conversions
+ """
+
+ OPT_DEFAULT = "DEFAULT"
+ OPT_HIDDEN = "HIDDEN"
+ OPT_NO_THREAD = "NO_THREAD"
+ SYNTAX_XHTML = _SYNTAX_XHTML
+ SYNTAX_MARKDOWN = "markdown"
+
+ params = """
+
+
+
+
+ %(options)s
+
+
+
+
+ """
+
+ params_data = {
+ 'category_name': CATEGORY,
+ 'category_label': _(CATEGORY), #FIXME: gof: vérifier que gettext gère ça
+ 'name': NAME,
+ 'label': _(NAME),
+ 'default': _SYNTAX_XHTML,
+ 'syntaxes': {},
+ }
+
+ def __init__(self, host):
+ info(_("Text syntaxes plugin initialization"))
+ self.host = host
+ self.syntaxes = {}
+ self.addSyntax(self.SYNTAX_XHTML, lambda xhtml: defer.succeed(xhtml), lambda xhtml: defer.succeed(xhtml),
+ TextSyntaxes.OPT_NO_THREAD)
+ try:
+ import markdown, html2text
+ self.addSyntax(self.SYNTAX_MARKDOWN, markdown.markdown, html2text.html2text, [TextSyntaxes.OPT_DEFAULT])
+ except ImportError:
+ warning("markdown or html2text not found, can't use Markdown syntax")
+ host.bridge.addMethod("syntaxConvert", ".plugin", in_sign='sssb', out_sign='s',
+ async=True, method=self.convert)
+
+ # TODO: gof: nettoyage XHTML avec lxml
+
+ def _updateParamOptions(self):
+ data_synt = TextSyntaxes.params_data['syntaxes']
+ syntaxes = []
+
+ for syntax in data_synt.keys():
+ flags = data_synt[syntax]["flags"]
+ if TextSyntaxes.OPT_HIDDEN not in flags:
+ syntaxes.append(syntax)
+
+ syntaxes.sort(key=unicode.lower)
+ options = []
+
+ for syntax in syntaxes:
+ options.append(u'' % syntax)
+
+ TextSyntaxes.params_data["options"] = u'\n'.join(options)
+ self.host.memory.updateParams(TextSyntaxes.params % TextSyntaxes.params_data)
+
+ def getFavoriteSyntax(self, profile):
+ """ Return the selected syntax for the given profile
+
+ @param profile: %(doc_profile)s
+ @return: profile selected syntax
+ """
+ return self.host.memory.getParamA(CATEGORY, NAME , profile_key=profile)
+
+ def clean_xhtml(self, xhtml):
+ """ Clean XHTML text by removing potentially dangerous/malicious parts
+ @param xhtml: raw xhtml text to clean
+ """
+ # FIXME: styles are allowed but not cleaned, they have to be cleaned (whitelist ? cssutils ?) !
+ safe_attrs = defs.safe_attrs.union(('style',))
+ cleaner = clean.Cleaner(style=False,
+ add_nofollow=False,
+ safe_attrs=safe_attrs)
+ d = deferToThread(cleaner.clean_html, xhtml)
+ return d
+
+ def convert(self, text, syntax_from, syntax_to=_SYNTAX_XHTML, safe=True):
+ """ Convert a text between two syntaxes
+ @param text: text to convert
+ @param syntax_from: source syntax (e.g. "markdown")
+ @param syntax_to: dest syntax (e.g.: "XHTML")
+ @param safe: clean resulting XHTML to avoid malicious code if True
+ @return: converted text """
+
+ syntaxes = TextSyntaxes.params_data['syntaxes']
+ if syntax_from not in syntaxes:
+ raise UnknownSyntax(syntax_from)
+ if syntax_to not in syntaxes:
+ raise UnknownSyntax(syntax_to)
+ d = None
+
+ if TextSyntaxes.OPT_NO_THREAD in syntaxes[syntax_from]["flags"]:
+ d = syntaxes[syntax_from]["to"](text)
+ else:
+ d = deferToThread(syntaxes[syntax_from]["to"], text)
+
+ #TODO: keep only body element and change it to a div here ?
+
+ if safe:
+ d.addCallback(self.clean_xhtml)
+
+ if TextSyntaxes.OPT_NO_THREAD in syntaxes[syntax_to]["flags"]:
+ d.addCallback(syntaxes[syntax_to]["from"])
+ else:
+ d.addCallback(lambda xhtml: deferToThread(syntaxes[syntax_to]["from"], xhtml))
+
+ return d
+
+ def addSyntax(self, name, to_xhtml_cb, from_xhtml_cb, flags = None):
+ """ Add a new syntax to the manager
+ @param name: unique name of the syntax
+ @param to_xhtml_cb: callback to convert from syntax to XHTML
+ @param from_xhtml_cb: callback to convert from XHTML to syntax
+ @param flags: set of optional flags, can be:
+ TextSyntaxes.OPT_DEFAULT: use as the default syntax (replace former one)
+ TextSyntaxes.OPT_HIDDEN: do not show in parameters
+ TextSyntaxes.OPT_NO_THREAD: do not defer to thread when converting (the callback must then return a deferred)
+
+ """
+ name = unicode(name)
+ flags = flags or []
+ if TextSyntaxes.OPT_HIDDEN in flags and TextSyntaxes.OPT_DEFAULT in flags:
+ raise ValueError("%s and %s are mutually exclusive" % (TextSyntaxes.OPT_HIDDEN, TextSyntaxes.OPT_DEFAULT))
+
+ syntaxes = TextSyntaxes.params_data['syntaxes']
+ syntaxes[name] = {"to": to_xhtml_cb, "from": from_xhtml_cb, "flags": flags}
+ if TextSyntaxes.OPT_DEFAULT in flags:
+ syntaxes = TextSyntaxes.params_data['default'] = name
+
+ self._updateParamOptions()
+