def convert_content(request, course_slug, page_label=None): """ Convert between wikicreole and HTML (AJAX called in editor when switching editing modes) """ if request.method != 'POST': return ForbiddenResponse(request, 'POST only') if 'to' not in request.POST: return ForbiddenResponse(request, 'must send "to" language') if 'data' not in request.POST: return ForbiddenResponse(request, 'must sent source "data"') offering = get_object_or_404(CourseOffering, slug=course_slug) to = request.POST['to'] data = request.POST['data'] if to == 'html': # convert wikitext to HTML # temporarily change the current version to get the result (but don't save) if page_label: page = get_object_or_404(Page, offering=offering, label=page_label) pv = page.current_version() else: # create temporary Page for conversion during creation p = Page(offering=offering) pv = PageVersion(page=p) pv.wikitext = data pv.diff_from = None result = {'data': pv.html_contents()} return HttpResponse(json.dumps(result), content_type="application/json") else: # convert HTML to wikitext converter = HTMLWiki([]) try: wiki = converter.from_html(data) except converter.ParseError: wiki = '' result = {'data': wiki} return HttpResponse(json.dumps(result), content_type="application/json")
def convert_content(request, course_slug, page_label=None): """ Convert between wikicreole and HTML (AJAX called in editor when switching editing modes) """ if request.method != 'POST': return ForbiddenResponse(request, 'POST only') if 'to' not in request.POST: return ForbiddenResponse(request, 'must send "to" language') if 'data' not in request.POST: return ForbiddenResponse(request, 'must sent source "data"') offering = get_object_or_404(CourseOffering, slug=course_slug) to = request.POST['to'] data = request.POST['data'] if to == 'html': # convert wikitext to HTML # temporarily change the current version to get the result (but don't save) if page_label: page = get_object_or_404(Page, offering=offering, label=page_label) pv = page.current_version() else: # create temporary Page for conversion during creation p = Page(offering=offering) pv = PageVersion(page=p) pv.wikitext = data pv.diff_from = None result = {'data': pv.html_contents()} return HttpResponse(json.dumps(result), content_type="application/json") else: # convert HTML to wikitext converter = HTMLWiki([]) try: wiki = converter.from_html(data) except converter.ParseError: wiki = '' result = {'data': wiki} return HttpResponse(json.dumps(result), content_type="application/json")
def _pages_from_json(request, offering, data): with django.db.transaction.atomic(): try: data = data.decode('utf-8-sig') except UnicodeDecodeError: raise ValidationError(u"Bad UTF-8 data in file.") try: data = json.loads(data) except ValueError as e: raise ValidationError(u'JSON decoding error. Exception was: "' + str(e) + '"') if not isinstance(data, dict): raise ValidationError( u'Outer JSON data structure must be an object.') if 'userid' not in data or 'token' not in data: raise ValidationError( u'Outer JSON data object must contain keys "userid" and "token".' ) if 'pages' not in data: raise ValidationError( u'Outer JSON data object must contain keys "pages".') if not isinstance(data['pages'], list): raise ValidationError(u'Value for "pages" must be a list.') try: user = Person.objects.get(userid=data['userid']) member = Member.objects.exclude(role='DROP').get(person=user, offering=offering) except Person.DoesNotExist, Member.DoesNotExist: raise ValidationError(u'Person with that userid does not exist.') if 'pages-token' not in user.config or user.config[ 'pages-token'] != data['token']: e = ValidationError(u'Could not validate authentication token.') e.status = 403 raise e # if we get this far, the user is authenticated and we can start processing the pages... for i, pdata in enumerate(data['pages']): if not isinstance(pdata, dict): raise ValidationError( u'Page #%i entry structure must be an object.' % (i)) if 'label' not in pdata: raise ValidationError( u'Page #%i entry does not have a "label".' % (i)) # handle changes to the Page object pages = Page.objects.filter(offering=offering, label=pdata['label']) if pages: page = pages[0] old_ver = page.current_version() else: page = Page(offering=offering, label=pdata['label']) old_ver = None # check write permissions # mock the request object enough to satisfy _check_allowed() class FakeRequest(object): def is_authenticated(self): return True fake_request = FakeRequest() fake_request.user = FakeRequest() fake_request.user.username = user.userid if old_ver: m = _check_allowed(fake_request, offering, page.can_write, page.editdate()) else: m = _check_allowed(fake_request, offering, offering.page_creators()) if not m: raise ValidationError(u'You can\'t edit page #%i.' % (i)) # handle Page attributes if 'can_read' in pdata: if type(pdata['can_read'] ) != unicode or pdata['can_read'] not in ACL_DESC: raise ValidationError( u'Page #%i "can_read" value must be one of %s.' % (i, ','.join(ACL_DESC.keys()))) page.can_read = pdata['can_read'] if 'can_write' in pdata: if type(pdata['can_write']) != unicode or pdata[ 'can_write'] not in WRITE_ACL_DESC: raise ValidationError( u'Page #%i "can_write" value must be one of %s.' % (i, ','.join(WRITE_ACL_DESC.keys()))) if m.role == 'STUD': raise ValidationError( u'Page #%i: students can\'t change can_write value.' % (i)) page.can_write = pdata['can_write'] if 'new_label' in pdata: if type(pdata['new_label']) != unicode: raise ValidationError( u'Page #%i "new_label" value must be a string.' % (i)) if m.role == 'STUD': raise ValidationError( u'Page #%i: students can\'t change label value.' % (i)) if Page.objects.filter(offering=offering, label=pdata['new_label']): raise ValidationError( u'Page #%i: there is already a page with that "new_label".' % (i)) page.label = pdata['new_label'] page.save() # handle PageVersion changes ver = PageVersion(page=page, editor=member) if 'title' in pdata: if type(pdata['title']) != unicode: raise ValidationError( u'Page #%i "title" value must be a string.' % (i)) ver.title = pdata['title'] elif old_ver: ver.title = old_ver.title else: raise ValidationError( u'Page #%i has no "title" for new page.' % (i)) if 'comment' in pdata: if type(pdata['comment']) != unicode: raise ValidationError( u'Page #%i "comment" value must be a string.' % (i)) ver.comment = pdata['comment'] if 'use_math' in pdata: if type(pdata['use_math']) != bool: raise ValidationError( u'Page #%i "comment" value must be a boolean.' % (i)) ver.set_math(pdata['use_math']) if 'wikitext-base64' in pdata: if type(pdata['wikitext-base64']) != unicode: raise ValidationError( u'Page #%i "wikitext-base64" value must be a string.' % (i)) try: wikitext = base64.b64decode(pdata['wikitext-base64']) except TypeError: raise ValidationError( u'Page #%i "wikitext-base64" contains bad base BASE64 data.' % (i)) ver.wikitext = wikitext elif 'wikitext' in pdata: if type(pdata['wikitext']) != unicode: raise ValidationError( u'Page #%i "wikitext" value must be a string.' % (i)) ver.wikitext = pdata['wikitext'] elif old_ver: ver.wikitext = old_ver.wikitext else: raise ValidationError( u'Page #%i has no wikitext for new page.' % (i)) ver.save() return user
def _pages_from_json(request, offering, data): with django.db.transaction.atomic(): try: data = data.decode('utf-8-sig') except UnicodeDecodeError: raise ValidationError("Bad UTF-8 data in file.") try: data = json.loads(data) except ValueError as e: raise ValidationError('JSON decoding error. Exception was: "' + str(e) + '"') if not isinstance(data, dict): raise ValidationError('Outer JSON data structure must be an object.') if 'userid' not in data or 'token' not in data: raise ValidationError('Outer JSON data object must contain keys "userid" and "token".') if 'pages' not in data: raise ValidationError('Outer JSON data object must contain keys "pages".') if not isinstance(data['pages'], list): raise ValidationError('Value for "pages" must be a list.') try: user = Person.objects.get(userid=data['userid']) member = Member.objects.exclude(role='DROP').get(person=user, offering=offering) except (Person.DoesNotExist, Member.DoesNotExist): raise ValidationError('Person with that userid does not exist.') if 'pages-token' not in user.config or user.config['pages-token'] != data['token']: e = ValidationError('Could not validate authentication token.') e.status = 403 raise e # if we get this far, the user is authenticated and we can start processing the pages... for i, pdata in enumerate(data['pages']): if not isinstance(pdata, dict): raise ValidationError('Page #%i entry structure must be an object.' % (i)) if 'label' not in pdata: raise ValidationError('Page #%i entry does not have a "label".' % (i)) # handle changes to the Page object pages = Page.objects.filter(offering=offering, label=pdata['label']) if pages: page = pages[0] old_ver = page.current_version() else: page = Page(offering=offering, label=pdata['label']) old_ver = None # check write permissions # mock the request object enough to satisfy _check_allowed() class FakeRequest(object): is_authenticated = True fake_request = FakeRequest() fake_request.user = FakeRequest() fake_request.user.username = user.userid if old_ver: m = _check_allowed(fake_request, offering, page.can_write, page.editdate()) else: m = _check_allowed(fake_request, offering, offering.page_creators()) if not m: raise ValidationError('You can\'t edit page #%i.' % (i)) # handle Page attributes if 'can_read' in pdata: if type(pdata['can_read']) != str or pdata['can_read'] not in ACL_DESC: raise ValidationError('Page #%i "can_read" value must be one of %s.' % (i, ','.join(list(ACL_DESC.keys())))) page.can_read = pdata['can_read'] if 'can_write' in pdata: if type(pdata['can_write']) != str or pdata['can_write'] not in WRITE_ACL_DESC: raise ValidationError('Page #%i "can_write" value must be one of %s.' % (i, ','.join(list(WRITE_ACL_DESC.keys())))) if m.role == 'STUD': raise ValidationError('Page #%i: students can\'t change can_write value.' % (i)) page.can_write = pdata['can_write'] if 'new_label' in pdata: if type(pdata['new_label']) != str: raise ValidationError('Page #%i "new_label" value must be a string.' % (i)) if m.role == 'STUD': raise ValidationError('Page #%i: students can\'t change label value.' % (i)) if Page.objects.filter(offering=offering, label=pdata['new_label']): raise ValidationError('Page #%i: there is already a page with that "new_label".' % (i)) page.label = pdata['new_label'] page.save() # handle PageVersion changes ver = PageVersion(page=page, editor=member) if 'title' in pdata: if type(pdata['title']) != str: raise ValidationError('Page #%i "title" value must be a string.' % (i)) ver.title = pdata['title'] elif old_ver: ver.title = old_ver.title else: raise ValidationError('Page #%i has no "title" for new page.' % (i)) if 'comment' in pdata: if type(pdata['comment']) != str: raise ValidationError('Page #%i "comment" value must be a string.' % (i)) ver.comment = pdata['comment'] if 'use_math' in pdata: if type(pdata['use_math']) != bool: raise ValidationError('Page #%i "comment" value must be a boolean.' % (i)) ver.set_math(pdata['use_math']) if 'markup' in pdata: if isinstance(pdata['markup'], str): raise ValidationError('Page #%i "markup" value must be a string.' % (i)) ver.set_markup(pdata['markup']) if 'wikitext-base64' in pdata: if type(pdata['wikitext-base64']) != str: raise ValidationError('Page #%i "wikitext-base64" value must be a string.' % (i)) try: wikitext = base64.b64decode(pdata['wikitext-base64']).decode('utf8') except TypeError: raise ValidationError('Page #%i "wikitext-base64" contains bad base BASE64 data.' % (i)) ver.wikitext = wikitext elif 'wikitext' in pdata: if type(pdata['wikitext']) != str: raise ValidationError('Page #%i "wikitext" value must be a string.' % (i)) ver.wikitext = pdata['wikitext'] elif old_ver: ver.wikitext = old_ver.wikitext else: raise ValidationError('Page #%i has no wikitext for new page.' % (i)) ver.save() return user