Working Edraak certificates

Conflicts:
	lms/templates/dashboard.html

lms/djangoapps/edraak_certificates/edraakcertificate.py

+# -*- coding: utf-8 -*-
+
+__author__ = 'omar'
+from reportlab.pdfgen import canvas
+from reportlab.lib.units import inch
+from reportlab.pdfbase.ttfonts import TTFont
+from reportlab.pdfbase import pdfmetrics
+from reportlab.lib.pagesizes import landscape, A4
+import arabicreshaper
+from bidi.algorithm import get_display
+import re
+from os import path
+from django.core.files.temp import NamedTemporaryFile
+
+static_dir = path.join(path.dirname(__file__), 'assets')
+
+light_font_url = path.join(static_dir, "DINNextLTArabic-Light.ttf")
+pdfmetrics.registerFont(TTFont("DIN Next LT Arabic Light", light_font_url, validate=True))
+
+bold_font_url = path.join(static_dir, "DinTextArabic-Bold.ttf")
+pdfmetrics.registerFont(TTFont("DIN Next LT Arabic Bold", bold_font_url, validate=True))
+
+SIZE = landscape(A4)
+
+
+def course_org_to_logo(course_org):
+    if course_org == 'MITX' or course_org == 'HarvardX':
+        return 'edx.png'
+    elif course_org == u'بيت.كوم':
+        return 'bayt-logo2-en.png'
+    elif course_org == u'إدراك':
+        return 'qrta_logo.jpg'
+    elif course_org == 'AUB':
+        return 'Full-AUB-Seal.jpg'
+    else:
+        return ''
+
+
+def text_to_bidi(text):
+    text = normalize_spaces(text)
+
+    reshaped_text = arabicreshaper.reshape(text)
+    bidi_text = get_display(reshaped_text)
+    return bidi_text
+
+
+def course_org_disclaimer(course_org):
+    if course_org == 'MITX':
+        return (u'تم طرح هذا المساق من قبل إدراك تحت إشراف فريق من الأكاديمين الذين اشرفوا' +
+                u' على تعليم وإدارة النقاش وتقييم الأجوبة والإمتحانات، و ذلك بالتعاون مع معهد' +
+                u' ماسشوستس للتكنولوجيا .')
+    else:
+        return (u'تم طرح هذا المساق من قبل إدراك وتحت إشراف فريق من الأكاديمين ' +
+                u'الذين اشرفوا على تعليم وإدارة النقاش وتقييم الأجوبة والإمتحانات.')
+
+
+def normalize_spaces(text):
+    return re.sub(' +', ' ', text)
+
+
+class EdraakCertificate(object):
+    def __init__(self, user_profile_name, course_name, course_desc, instructor, course_end_date, course_org=None):
+        self.user_profile_name = user_profile_name
+        self.course_name = course_name
+        self.course_desc = course_desc
+        self.instructor = instructor
+        self.course_end_date = course_end_date
+        self.course_org = course_org
+
+        self.temp_file = NamedTemporaryFile(suffix='-cert.pdf')
+
+        self.ctx = None
+
+    def init_context(self):
+        ctx = canvas.Canvas(self.temp_file.name)
+        ctx.setPageSize(SIZE)
+        self.ctx = ctx
+
+    def add_certificate_bg(self):
+        width, height = SIZE
+        bg_path = path.join(static_dir, 'certificate_layout3.jpg')
+        self.ctx.drawImage(bg_path, 0, 0, width, height)
+
+    def _set_font(self, size, is_bold):
+        if is_bold:
+            font = "DIN Next LT Arabic Bold"
+        else:
+            font = "DIN Next LT Arabic Light"
+
+        self.ctx.setFont(font, size)
+        self.ctx.setFillColorRGB(66 / 255.0, 74 / 255.0, 82 / 255.0)
+
+    def draw_single_line_bidi_text(self, text, x, y, size, bold=False, max_width=7.494):
+        x *= inch
+        y *= inch
+        size *= inch
+        max_width *= inch
+
+        text = text_to_bidi(text)
+
+        while True:
+            self._set_font(size, bold)
+            lines = list(self._wrap_text(text, max_width))
+
+            if len(lines) > 1:
+                size *= 0.9  # reduce font size by 10%
+            else:
+                self.ctx.drawRightString(x, y, lines[0])
+                break
+
+    def draw_bidi_text(self, text, x, y, size, bold=False, max_width=7.494, lh_factor=1.3):
+        x *= inch
+        y *= inch
+        size *= inch
+        max_width *= inch
+        line_height = size * lh_factor
+
+        self._set_font(size, bold)
+
+        text = text_to_bidi(text)
+
+        for line in self._wrap_text(text, max_width):
+            self.ctx.drawRightString(x, y, line)
+            y -= line_height
+
+    def add_course_org_logo(self, course_org):
+        if course_org:
+            image = path.join(static_dir, course_org_to_logo(course_org))
+            self.ctx.drawImage(image, 3.519 * inch, 6.444 * inch, 2.467 * inch, 1.378 * inch)
+
+    def _wrap_text(self, text, max_width):
+        words = reversed(text.split(u' '))
+
+        def de_reverse(text_to_reverse):
+            return u' '.join(reversed(text_to_reverse.split(u' ')))
+
+        line = u''
+        for next_word in words:
+            next_width = self.ctx.stringWidth(line + u' ' + next_word)
+
+            if next_width >= max_width:
+                yield de_reverse(line).strip()
+                line = next_word
+            else:
+                line += u' ' + next_word
+
+        if line:
+            yield de_reverse(line).strip()
+
+    def save(self):
+        self.ctx.showPage()
+        self.ctx.save()
+
+    def generate_and_save(self):
+        self.init_context()
+
+        x = 10.8
+        self.add_certificate_bg()
+        self.add_course_org_logo(self.course_org)
+
+        self.draw_bidi_text(u'تم منح شهادة إتمام المساق هذﮦ إلى:', x, 5.8, size=0.25)
+
+        self.draw_single_line_bidi_text(self.user_profile_name, x, 5.124, size=0.5, bold=True)
+
+        self.draw_bidi_text(u'لإتمام المساق التالي بنجاح:', x, 4.63, size=0.25)
+        self.draw_bidi_text(self.course_name, x, 4.1, size=0.33, bold=True)
+        self.draw_bidi_text(self.course_desc, x, 3.78, size=0.16)
+
+        self.draw_single_line_bidi_text(self.instructor, x, 1.8, size=0.26, bold=True)
+        self.draw_bidi_text(course_org_disclaimer(self.course_org), x, 1.48, size=0.16)
+        self.draw_bidi_text(self.course_end_date, 2.7, 4.82, size=0.27)
+
+        self.save()
\ No newline at end of file

lms/djangoapps/edraak_certificates/urls.py

+from django.conf import settings
+from django.conf.urls import patterns, url
+from django.core.urlresolvers import LocaleRegexURLResolver
+
+urlpatterns = patterns('',  # nopep8
+                       url(r'^issue$', 'edraak_certificates.views.issue', name='edraak_certificates_issue'),
+
+                       url(r'^download/(?P<course_id>[^/]+/[^/]+/[^/]+)$', 'edraak_certificates.views.download',
+                           name='edraak_certificates_download'),
+
+                       url(r'^preview/(?P<course_id>[^/]+/[^/]+/[^/]+)$', 'edraak_certificates.views.preview',
+                           name='edraak_certificates_preview'),
+)

lms/djangoapps/edraak_certificates/utils.py

+import logging
+
+from xmodule.modulestore.django import modulestore
+from student.roles import CourseInstructorRole
+from student.models import UserProfile
+
+from courseware.courses import get_course_about_section
+from .edraakcertificate import EdraakCertificate
+from opaque_keys.edx import locator
+
+logger = logging.getLogger(__name__)
+
+
+def generate_certificate(request, course_id):
+    user = request.user
+    course_key = locator.CourseLocator.from_string(course_id)
+    course = modulestore().get_course(course_key)
+
+    course_name = course.display_name
+    course_end_date = ''
+    if course.end:
+        course_end_date = str(course.end.date())
+    course_short_desc = get_course_about_section(course, 'short_description')
+
+    instructor_name = ''
+    role = CourseInstructorRole(course_key)
+    if role.users_with_role():
+        instructor_user = role.users_with_role()[0]
+        instructor_name = UserProfile.objects.get(user=instructor_user).name
+
+    cert = EdraakCertificate(course_name=course_name,
+                             user_profile_name=user.profile.name,
+                             course_org=course.display_organization,
+                             course_end_date=course_end_date,
+                             course_desc=course_short_desc,
+                             instructor=instructor_name)
+
+    cert.generate_and_save()
+
+    return cert.temp_file
\ No newline at end of file

lms/djangoapps/edraak_certificates/views.py

+import logging
+import os
+
+from django.views.decorators.csrf import csrf_exempt
+from django.http import HttpResponse
+from django.shortcuts import redirect
+from django.core.urlresolvers import reverse
+from django.core.servers.basehttp import FileWrapper
+from django.core.files.temp import NamedTemporaryFile
+from django.contrib.auth.decorators import login_required
+from edxmako.shortcuts import render_to_response
+
+from wand.image import Image
+from .utils import generate_certificate
+
+logger = logging.getLogger(__name__)
+
+
+@csrf_exempt
+@login_required
+def issue(request):
+    course_id = request.POST['certificate_course_id']
+
+    if request.session.get('course_pass_%s' % course_id):
+        user = request.user
+
+        return render_to_response('edraak_certificates/issue.html', {'user': user,
+                                                                     'course_id': course_id})
+    else:
+        return redirect(reverse('dashboard'))
+
+
+@login_required
+def download(request, course_id):
+    if request.session.get('course_pass_%s' % course_id):
+        pdf_file = generate_certificate(request, course_id)
+        wrapper = FileWrapper(pdf_file)
+
+        # `application/octet-stream` is to force download
+        response = HttpResponse(wrapper, content_type='application/octet-stream')
+
+        response['Content-Length'] = os.path.getsize(pdf_file.name)
+        response['Content-Disposition'] = "attachment; filename=Edraak-Certificate.pdf"
+
+        return response
+    else:
+        return redirect(reverse('dashboard'))
+
+
+@login_required
+def preview(request, course_id):
+    if request.session.get('course_pass_%s' % course_id):
+        pdf_file = generate_certificate(request, course_id)
+        image_file = NamedTemporaryFile(suffix='-cert.png')
+
+        with Image(filename=pdf_file.name) as img:
+            with img.clone() as i:
+                i.resize(445, 315)
+                i.save(filename=image_file.name)
+
+        wrapper = FileWrapper(image_file)
+        response = HttpResponse(wrapper, content_type='image/png')
+        response['Content-Length'] = os.path.getsize(image_file.name)
+
+        return response
+    else:
+        return redirect(reverse('dashboard'))
\ No newline at end of file

lms/envs/common.py

@@ -1485,6 +1485,7 @@ INSTALLED_APPS = (
     'edraak_misc',
     'edraak_contact',
     'edraak_bayt',
+    'edraak_certificates',
 )
 
 ######################### MARKETING SITE ###############################

lms/templates/dashboard.html

@@ -42,6 +42,30 @@
         verifyToggleBannerFailedOff: "${reverse('verify_student_toggle_failed_banner_off')}",
       });
     });
+  })(this);
+
+  $(function(){
+    accessible_modal(".edit-name", "#apply_name_change .close-modal", "#apply_name_change", "#dashboard-main");
+
+    accessible_modal(".edit-email", "#change_email .close-modal", "#change_email", "#dashboard-main");
+
+    accessible_modal("#pwd_reset_button", "#password_reset_complete .close-modal", "#password_reset_complete", "#dashboard-main");
+
+
+    $(".email-settings").each(function(index){
+      $(this).attr("id", "unenroll-" + index);
+      // a bit of a hack, but gets the unique selector for the modal trigger
+      var trigger = "#" + $(this).attr("id");
+      accessible_modal(trigger, "#email-settings-modal .close-modal", "#email-settings-modal", "#dashboard-main");
+    });
+
+    $(".unenroll").each(function(index){
+      $(this).attr("id", "email-settings-" + index);
+      // a bit of a hack, but gets the unique selector for the modal trigger
+      var trigger = "#" + $(this).attr("id");
+      accessible_modal(trigger, "#unenroll-modal .close-modal", "#unenroll-modal", "#dashboard-main");
+    });
+  });
   </script>
 </%block>
 
@@ -405,3 +429,4 @@
 
 ## Available in Edraak theme
 <%include file="bayt/_dashboard_popups.html" />
+<%include file="edraak_certificates/_dashboard_popups.html" />

lms/templates/dashboard/_dashboard_course_listing.html

@@ -226,6 +226,7 @@
 
 ## Available in Edraak theme
 <%include file="../bayt/_dashboard_certificate_link.html" args="course=course" />
+<%include file="../edraak_certificates/_dashboard_certificate_link.html" args="course=course" />
 
 
   </section>

lms/templates/edraak_certificates/_dashboard_certificate_link.html

+<%!
+    import logging
+    log = logging.getLogger(__name__)
+    log.error('Edraak theme is required for this module to work. Please use Edraak theme.')
+%>
+## Just an empty placeholder
+## Actual implementation is available in Edraak theme

lms/templates/edraak_certificates/_dashboard_popups.html

+<%!
+    import logging
+    log = logging.getLogger(__name__)
+    log.error('Edraak theme is required for this module to work. Please use Edraak theme.')
+%>
+## Just an empty placeholder
+## Actual implementation is available in Edraak theme

lms/templates/edraak_certificates/issue.html

+<%!
+    import logging
+    log = logging.getLogger(__name__)
+    log.error('Edraak theme is required for this module to work. Please use Edraak theme.')
+%>
+## Just an empty placeholder
+## Actual implementation is available in Edraak theme

lms/urls.py

@@ -71,6 +71,7 @@ urlpatterns = ('',  # nopep8
     url(r'', include('edraak_misc.urls')),
     url(r'', include('edraak_contact.urls')),
     url(r'', include('edraak_bayt.urls')),
+    url(r'^certificate/', include('edraak_certificates.urls')),
 
     url(r'^embargo$', 'student.views.embargo', name="embargo"),
 

requirements/edx/base.txt

@@ -143,3 +143,6 @@ git+https://github.com/mitocw/django-cas.git
 
 # edX packages
 edx-submissions==0.0.8
+
+# Edraak packages
+-r edraak/certificates.txt
\ No newline at end of file

requirements/edx/edraak/certificates.txt

+# Used for printing the certificates
+python-bidi==0.3.4
+reportlab==3.1.8
+wand==0.3.7
\ No newline at end of file