def process_course(extract_path, f, mod_name, request, user):
    xml_path = os.path.join(extract_path, mod_name, "module.xml")
    # check that the module.xml file exists
    if not os.path.isfile(xml_path):
        messages.info(request, _("Zip file does not contain a module.xml file"), extra_tags="danger")
        return False, 400

    # parse the module.xml file
    doc = xml.dom.minidom.parse(xml_path)
    meta_info = parse_course_meta(doc)

    new_course = False
    oldsections = []
    old_course_filename = None

    # Find if course already exists
    try:
        course = Course.objects.get(shortname=meta_info['shortname'])
        # check that the current user is allowed to wipe out the other course
        if course.user != user:
            messages.info(request, _("Sorry, only the original owner may update this course"))
            return False, 401
        # check if course version is older
        if course.version > meta_info['versionid']:
            messages.info(request, _("A newer version of this course already exists"))
            return False, 400

        # obtain the old sections
        oldsections = list(Section.objects.filter(course=course).values_list('pk', flat=True))
        # wipe out old media
        oldmedia = Media.objects.filter(course=course)
        oldmedia.delete()

        old_course_filename = course.filename
        course.lastupdated_date = timezone.now()

    except Course.DoesNotExist:
        course = Course()
        course.is_draft = True
        new_course = True

    course.shortname = meta_info['shortname']
    course.title = meta_info['title']
    course.description = meta_info['description']
    course.version = meta_info['versionid']
    course.user = user
    course.filename = f.name
    course.save()

    # save gamification events
    if 'gamification' in meta_info:
        events = parse_gamification_events(meta_info['gamification'])
        # remove anything existing for this course
        CourseGamificationEvent.objects.filter(course=course).delete()
        # add new
        for event in events:
            e = CourseGamificationEvent(user=user, course=course, event=event['name'], points=event['points'])
            e.save()

    process_quizzes_locally = False
    if 'exportversion' in meta_info and meta_info['exportversion'] >= settings.OPPIA_EXPORT_LOCAL_MINVERSION:
        process_quizzes_locally = True
        print('processing course\'s quizzes locally')

    parse_course_contents(request, doc, course, user, new_course, process_quizzes_locally)
    clean_old_course(request, oldsections, old_course_filename, course)

    tmp_path = replace_zip_contents(xml_path, doc, mod_name, extract_path)
    # Extract the final file into the courses area for preview
    zipfilepath = settings.COURSE_UPLOAD_DIR + f.name
    shutil.copy(tmp_path + ".zip", zipfilepath)

    course_preview_path = settings.MEDIA_ROOT + "courses/"
    ZipFile(zipfilepath).extractall(path=course_preview_path)

    return course, 200
Beispiel #2
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def process_course(extract_path, f, mod_name, request, user):
    xml_path = os.path.join(extract_path, mod_name, "module.xml")
    # check that the module.xml file exists
    if not os.path.isfile(xml_path):
        msg_text = _(u"Zip file does not contain a module.xml file")
        messages.info(request, msg_text, extra_tags="danger")
        CoursePublishingLog(user=user, action="no_module_xml",
                            data=msg_text).save()
        return False, 400

    # parse the module.xml file
    doc = ET.parse(xml_path)
    meta_info = parse_course_meta(doc)

    new_course = False
    oldsections = []
    old_course_filename = None

    # Find if course already exists
    try:
        course = Course.objects.get(shortname=meta_info['shortname'])
        course_manager = CoursePermissions.objects.filter(
            user=user, course=course, role=CoursePermissions.MANAGER).count()
        # check that the current user is allowed to wipe out the other course
        if course.user != user and course_manager == 0:
            msg_text = \
                _(u"Sorry, you do not have permissions to update this course.")
            messages.info(request, msg_text)
            CoursePublishingLog(course=course,
                                new_version=meta_info['versionid'],
                                old_version=course.version,
                                user=user,
                                action="permissions_error",
                                data=msg_text).save()
            return False, 401
        # check if course version is older
        if course.version > meta_info['versionid']:
            msg_text = _(u"A newer version of this course already exists")
            messages.info(request, msg_text)
            CoursePublishingLog(course=course,
                                new_version=meta_info['versionid'],
                                old_version=course.version,
                                user=user,
                                action="newer_version_exists",
                                data=msg_text).save()
            return False, 400

        # obtain the old sections
        oldsections = list(
            Section.objects.filter(course=course).values_list('pk', flat=True))
        # wipe out old media
        oldmedia = Media.objects.filter(course=course)
        oldmedia.delete()

        old_course_filename = course.filename
        course.lastupdated_date = timezone.now()

    except Course.DoesNotExist:
        course = Course()
        course.is_draft = True
        new_course = True

    old_course_version = course.version

    course.shortname = meta_info['shortname']
    course.title = meta_info['title']
    course.description = meta_info['description']
    course.version = meta_info['versionid']
    course.priority = int(meta_info['priority'])
    course.user = user
    course.filename = f.name
    course.save()

    if not parse_course_contents(request, doc, course, user, new_course):
        return False, 500
    clean_old_course(request, user, oldsections, old_course_filename, course)

    # save gamification events
    if 'gamification' in meta_info:
        events = parse_gamification_events(meta_info['gamification'])
        for event in events:
            # Only add events if the didn't exist previously
            e, created = CourseGamificationEvent.objects.get_or_create(
                course=course,
                event=event['name'],
                defaults={
                    'points': event['points'],
                    'user': user
                })

            if created:
                msg_text = \
                    _(u'Gamification for "%(event)s" at course level added') \
                    % {'event': e.event}
                messages.info(request, msg_text)
                CoursePublishingLog(course=course,
                                    new_version=meta_info['versionid'],
                                    old_version=old_course_version,
                                    user=user,
                                    action="gamification_added",
                                    data=msg_text).save()

    tmp_path = replace_zip_contents(xml_path, doc, mod_name, extract_path)
    # Extract the final file into the courses area for preview
    zipfilepath = os.path.join(settings.COURSE_UPLOAD_DIR, f.name)
    shutil.copy(tmp_path + ".zip", zipfilepath)

    course_preview_path = os.path.join(settings.MEDIA_ROOT, "courses")
    ZipFile(zipfilepath).extractall(path=course_preview_path)

    writer = GamificationXMLWriter(course)
    writer.update_gamification(request.user)

    return course, 200
Beispiel #3
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def handle_uploaded_file(f, extract_path, request, user):
    zipfilepath = settings.COURSE_UPLOAD_DIR + f.name

    with open(zipfilepath, 'wb+') as destination:
        for chunk in f.chunks():
            destination.write(chunk)

    zip = zipfile.ZipFile(zipfilepath)
    zip.extractall(path=extract_path)

    mod_name = ''
    for dir in os.listdir(extract_path)[:1]:
        mod_name = dir

    # check there is at least a sub dir
    if mod_name == '':
        messages.info(request, _("Invalid course zip file"))
        return False

    # check that the
    if not os.path.isfile(os.path.join(extract_path, mod_name, "module.xml")):
        messages.info(request,
                      _("Zip file does not contain a module.xml file"))
        return False

    # parse the module.xml file
    print extract_path
    print mod_name

    doc = xml.dom.minidom.parse(
        os.path.join(extract_path, mod_name, "module.xml"))
    for meta in doc.getElementsByTagName("meta")[:1]:
        versionid = 0
        for v in meta.getElementsByTagName("versionid")[:1]:
            versionid = int(v.firstChild.nodeValue)
        temp_title = {}
        for t in meta.childNodes:
            if t.nodeName == "title":
                temp_title[t.getAttribute('lang')] = t.firstChild.nodeValue
        title = json.dumps(temp_title)

        temp_description = {}
        for t in meta.childNodes:
            if t.nodeName == "description":
                if t.firstChild is not None:
                    temp_description[t.getAttribute(
                        'lang')] = t.firstChild.nodeValue
                else:
                    temp_description[t.getAttribute('lang')] = None
        description = json.dumps(temp_description)

        shortname = ''
        for sn in meta.getElementsByTagName("shortname")[:1]:
            shortname = sn.firstChild.nodeValue

    old_course_filename = None
    # Find if course already exists
    try:

        print shortname

        course = Course.objects.get(shortname=shortname)
        old_course_filename = course.filename

        # check that the current user is allowed to wipe out the other course
        if course.user != user:
            messages.info(
                request,
                _("Sorry, only the original owner may update this course"))
            return False

        # check if course version is older
        if course.version > versionid:
            messages.info(request,
                          _("A newer version of this course already exists"))
            return False
        # wipe out the old sections/activities/media
        oldsections = Section.objects.filter(course=course)
        oldsections.delete()
        oldmedia = Media.objects.filter(course=course)
        oldmedia.delete()

        course.shortname = shortname
        course.title = title
        course.description = description
        course.version = versionid
        course.user = user
        course.filename = f.name
        course.lastupdated_date = timezone.now()
        course.save()
    except Course.DoesNotExist:
        course = Course()
        course.shortname = shortname
        course.title = title
        course.description = description
        course.version = versionid
        course.user = user
        course.filename = f.name
        course.is_draft = True
        course.save()

    # add in any baseline activities
    for meta in doc.getElementsByTagName("meta")[:1]:
        if meta.getElementsByTagName("activity").length > 0:
            section = Section()
            section.course = course
            section.title = '{"en": "Baseline"}'
            section.order = 0
            section.save()
            for a in meta.getElementsByTagName("activity"):
                parse_and_save_activity(section, a, True)

    # add all the sections
    for structure in doc.getElementsByTagName("structure")[:1]:

        if structure.getElementsByTagName("section").length == 0:
            messages.info(
                request,
                _("There don't appear to be any activities in this upload file."
                  ))
            course.delete()
            return False

        for s in structure.getElementsByTagName("section"):
            temp_title = {}
            for t in s.childNodes:
                if t.nodeName == 'title':
                    temp_title[t.getAttribute('lang')] = t.firstChild.nodeValue
            title = json.dumps(temp_title)
            section = Section()
            section.course = course
            section.title = title
            section.order = s.getAttribute("order")
            section.save()

            # add all the activities
            for activities in s.getElementsByTagName("activities")[:1]:
                for a in activities.getElementsByTagName("activity"):
                    parse_and_save_activity(section, a, False)

    # add all the media
    for file in doc.lastChild.lastChild.childNodes:
        if file.nodeName == 'file':
            media = Media()
            media.course = course
            media.filename = file.getAttribute("filename")
            media.download_url = file.getAttribute("download_url")
            media.digest = file.getAttribute("digest")

            # get any optional attributes
            for attrName, attrValue in file.attributes.items():
                if attrName == "length":
                    media.media_length = attrValue
                if attrName == "filesize":
                    media.filesize = attrValue

            media.save()

    if old_course_filename is not None and old_course_filename != course.filename:
        try:
            os.remove(settings.COURSE_UPLOAD_DIR + old_course_filename)
        except OSError:
            pass

    # Extract the final file into the courses area for preview
    zipfilepath = settings.COURSE_UPLOAD_DIR + f.name

    with open(zipfilepath, 'wb+') as destination:
        for chunk in f.chunks():
            destination.write(chunk)

    zip = zipfile.ZipFile(zipfilepath)
    course_preview_path = settings.MEDIA_ROOT + "courses/"
    zip.extractall(path=course_preview_path)

    # remove the temp upload files
    shutil.rmtree(extract_path, ignore_errors=True)

    return course
def handle_uploaded_file(f, extract_path, request):
    zipfilepath = settings.COURSE_UPLOAD_DIR + f.name
    
    with open(zipfilepath, 'wb+') as destination:
        for chunk in f.chunks():
            destination.write(chunk)
            
    zip = zipfile.ZipFile(zipfilepath)
    zip.extractall(path=extract_path)      
    
    mod_name = ''
    for dir in os.listdir(extract_path)[:1]:
        mod_name = dir
       
    # check there is at least a sub dir 
    if mod_name == '':
        messages.info(request,_("Invalid course zip file"))
        return False
    
    # check that the 
    if not os.path.isfile(extract_path + mod_name + "/module.xml"):
        messages.info(request,_("Zip file does not contain a module.xml file"))
        return False
      
    # parse the module.xml file
    doc = xml.dom.minidom.parse(extract_path + mod_name + "/module.xml") 
    for meta in doc.getElementsByTagName("meta")[:1]:
        versionid = 0
        for v in meta.getElementsByTagName("versionid")[:1]:
            versionid = int(v.firstChild.nodeValue)
        temp_title = {}
        for t in meta.childNodes:
            if t.nodeName == "title":
                temp_title[t.getAttribute('lang')] = t.firstChild.nodeValue
        title = json.dumps(temp_title)
        
        temp_description = {}
        for t in meta.childNodes:
            if t.nodeName == "description":
                if t.firstChild is not None:
                    temp_description[t.getAttribute('lang')] = t.firstChild.nodeValue
                else:
                    temp_description[t.getAttribute('lang')] = None
        description = json.dumps(temp_description)
        
        shortname = ''
        for sn in meta.getElementsByTagName("shortname")[:1]:
            shortname = sn.firstChild.nodeValue
    
    old_course_filename = None
    # Find if course already exists
    try: 
        course = Course.objects.get(shortname = shortname)
        old_course_filename = course.filename
        old_course_version = course.version
         
        # check that the current user is allowed to wipe out the other course
        if course.user != request.user:
            messages.info(request,_("Sorry, only the original owner may update this course"))
            return False
        
        # check if course version is older
        if course.version > versionid:
            messages.info(request,_("A newer version of this course already exists"))
            return False
        # wipe out the old sections/activities/media
        oldsections = Section.objects.filter(course = course)
        oldsections.delete()
        oldmedia = Media.objects.filter(course = course)
        oldmedia.delete()
        
        course.shortname = shortname
        course.title = title
        course.description = description
        course.version = versionid
        course.user = request.user
        course.filename = f.name
        course.lastupdated_date = datetime.datetime.now()
        course.save()
    except Course.DoesNotExist:
        course = Course()
        course.shortname = shortname
        course.title = title
        course.description = description
        course.version = versionid
        course.user = request.user
        course.filename = f.name
        course.is_draft = True
        course.save()
    
    
            
    # add in any baseline activities
    for meta in doc.getElementsByTagName("meta")[:1]:
        if meta.getElementsByTagName("activity").length > 0:
            section = Section()
            section.course = course
            section.title = '{"en": "Baseline"}'
            section.order = 0
            section.save()
            for a in meta.getElementsByTagName("activity"):
                activity_create(section, a,True)
            
       
    # add all the sections
    for structure in doc.getElementsByTagName("structure")[:1]:
        
        if structure.getElementsByTagName("section").length == 0:
            messages.info(request,_("There don't appear to be any activities in this upload file."))
            course.delete()
            return False
        
        for s in structure.getElementsByTagName("section"):
            temp_title = {}
            for t in s.childNodes:
                if t.nodeName == 'title':
                    temp_title[t.getAttribute('lang')] = t.firstChild.nodeValue
            title = json.dumps(temp_title)
            section = Section()
            section.course = course
            section.title = title
            section.order = s.getAttribute("order")
            section.save()
            
            # add all the activities
            for activities in s.getElementsByTagName("activities")[:1]:
                for a in activities.getElementsByTagName("activity"):
                    activity_create(section, a,False)
                    
    # add all the media
    for file in doc.lastChild.lastChild.childNodes:
        if file.nodeName == 'file':
            media = Media()
            media.course = course
            media.filename = file.getAttribute("filename")
            media.download_url = file.getAttribute("download_url")
            media.digest = file.getAttribute("digest")
            
            # get any optional attributes
            for attrName, attrValue in file.attributes.items():
                if attrName == "length":
                    media.media_length = attrValue
                if attrName == "filesize":
                    media.filesize = attrValue

            media.save()
    
    if old_course_filename is not None and old_course_filename != course.filename:
        os.remove(settings.COURSE_UPLOAD_DIR + old_course_filename)
    
    #Extract the final file into the courses area for preview
    zipfilepath = settings.COURSE_UPLOAD_DIR + f.name
    
    with open(zipfilepath, 'wb+') as destination:
        for chunk in f.chunks():
            destination.write(chunk)
            
    zip = zipfile.ZipFile(zipfilepath)
    course_preview_path = settings.MEDIA_ROOT + "courses/"
    zip.extractall(path=course_preview_path)      
    
        
    return course