Revert "WL-1452 | add support for linkifying submissions"

openassessment/templates/openassessmentblock/oa_submission_answer.html

 {% spaceless %}
 {% load i18n %}
-{% load oa_extras %}
 <ol class="submission__answer__display__content">
     {% for part in answer.parts %}
         <li class="submission__answer__part">
@@ -20,7 +19,7 @@
             <div class="submission__answer__part__text">
                 <h5 class="submission__answer__part__text__title">{{ answer_text_label }}</h5>
                 <div class="submission__answer__part__text__value">
-                    {{ part.text|escape|link_and_linebreak }}
+                    {{ part.text|linebreaks }}
                 </div>
             </div>
             {% endif %}

openassessment/templates/openassessmentblock/response/oa_response.html

 {% load tz %}
 {% load i18n %}
-{% load oa_extras %}
 {% spaceless %}
 {% block list_item %}
 <li class="openassessment__steps__step step--response is--in-progress is--showing ui-slidable__container"
@@ -104,7 +103,7 @@
                                         aria-describedby="submission__answer__tip__{{ xblock_id }}"
                                         placeholder="{% trans "Enter your response to the prompt above." %}"
                                         maxlength="100000"
-                                    >{{ part.text|escape|link_and_linebreak }}</textarea>
+                                    >{{ part.text }}</textarea>
                                 </div>
                                 {% with forloop.counter|stringformat:"s" as submission_num %}
                                     {% include "openassessmentblock/oa_latex_preview.html" with id="submission__"|add:xblock_id|add:submission_num elem="div" preview_name="submission__"|add:submission_num %}

openassessment/templatetags/oa_extras.py

-from django import template
-from django.template.defaultfilters import linebreaks, stringfilter
-from django.utils.safestring import mark_safe
-from django.utils.html import conditional_escape
-from bleach import callbacks
-
-import bleach
-
-register = template.Library()
-
-
-@register.filter(needs_autoescape=True)
-@stringfilter
-def link_and_linebreak(text, autoescape=True):
-
-    if text and len(text) > 0:
-        the_text = conditional_escape(text)
-        return mark_safe(linebreaks(bleach.linkify(the_text, callbacks=[callbacks.target_blank])))
-    else:
-        return text

openassessment/tests/test_templatetags.py

-import ddt
-from django.template import Context, Template
-import unittest
-
-
-@ddt.ddt
-class OAExtrasTests(unittest.TestCase):
-
-    template = Template(
-        "{% load oa_extras %}"
-        "{{ text|link_and_linebreak }}"
-    )
-
-    @ddt.data(
-        ("", ""),
-        ('check this https://dummy-url.com', 'https://dummy-url.com'),
-        ('Visit this URL http://dummy-url.com', 'http://dummy-url.com'),
-        ('dummy-text http://dummy-url.org', 'http://dummy-url.org'),
-        ('dummy-url.com dummy-text', 'dummy-url.com')
-    )
-    @ddt.unpack
-    def test_link_and_linebreak(self, text, link_text):
-        rendered_template = self.template.render(Context({'text': text}))
-        self.assertIn(link_text, rendered_template)
-        if text:
-            self.assertRegexpMatches(
-                rendered_template,
-                r'<a.*target="_blank".*>{link_text}</a>'.format(link_text=link_text),
-            )
-
-    @ddt.data(
-        ("hello <script></script>", "script"),
-        ("http://dummy-url.com <applet></applet>", "applet"),
-        ("<iframe></iframe>", "iframe"),
-        ("<link></link>", "link"),
-    )
-    @ddt.unpack
-    def test_html_tags(self, text, tag):
-        rendered_template = self.template.render(Context({'text': text}))
-        escaped_tag = "&lt;{tag}&gt;".format(tag=tag)
-        self.assertIn(escaped_tag, rendered_template)

requirements/base.txt

@@ -5,8 +5,6 @@ git+https://github.com/edx/XBlock.git@xblock-1.0.1#egg=XBlock==1.0.1
 git+https://github.com/edx/xblock-sdk.git@v0.1.4#egg=xblock-sdk==0.1.4
 
 # Third Party Requirements
-bleach==1.4
-html5lib==0.999
 boto>=2.39.0,<3.0.0
 python-swiftclient>=3.1.0,<4.0.0
 defusedxml>=0.4.1,<1.0.0