How to use _is_string method in Lemoncheesecake

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api.py

Source:api.py

1__author__ = 'Matteo Balasso <m.balasso@scsitaly.com>'2import json3from django.db.models import Q, ObjectDoesNotExist4from django.contrib.auth.models import User, Group5from django.http import HttpResponse6from piston.handler import BaseHandler7from permissions.utils import add_local_role8from masterinterface.scs_auth.auth import authenticate9from models import VPHShareSmartGroup, InstitutionPortal10from config import group_manager11class search_user(BaseHandler):12    """13        REST service based on Django-Piston Library.\n14    """15    def read(self, request, ticket='', term=''):16        """17            Process a search user request.18            Arguments:19            request (HTTP request istance): HTTP request send from client.20            ticket (string) : base 64 ticket.21            term (string) : search term22            Return:23            Successes - Json/xml/yaml format response24            Failure - 403 error25        """26        try:27            if request.GET.get('ticket'):28                client_address = request.META['REMOTE_ADDR']29                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)30                if user is not None:31                    term = request.GET.get('term', '')32                    users = User.objects.filter(33                        Q(username__icontains=term) | Q(email__icontains=term) | Q(first_name__icontains=term) | Q(34                            last_name__icontains=term)35                    )36                    return [{"username": user.username, "fullname": "%s %s" % (user.first_name, user.last_name),37                             "email": user.email} for user in users]38                else:39                    response = HttpResponse(status=403)40                    response._is_string = True41                    return response42        except Exception, e:43            from raven.contrib.django.raven_compat.models import client44            client.captureException()45            response = HttpResponse(status=500)46            response._is_string = True47            return response48class search_userandgroup(BaseHandler):49    """50        REST service based on Django-Piston Library.\n51    """52    def read(self, request, ticket='', term=''):53        """54            Process a search user request.55            Arguments:56            request (HTTP request istance): HTTP request send from client.57            ticket (string) : base 64 ticket.58            term (string) : search term59            Return:60            Successes - Json/xml/yaml format response61            Failure - 403 error62        """63        try:64            if request.GET.get('ticket'):65                client_address = request.META['REMOTE_ADDR']66                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)67                if user is not None:68                    term = request.GET.get('term', '')69                    users = User.objects.filter(70                        Q(username__icontains=term) | Q(email__icontains=term) | Q(first_name__icontains=term) | Q(last_name__icontains=term)71                    )72                    groups = Group.objects.filter(name__icontains=term)73                    return {74                        "users": [{"username": user.username, "fullname": "%s %s" % (user.first_name, user.last_name)} for user in users],75                        "groups": [{"groupname": g.name, "subscribers": len(g.user_set.all())} for g in groups],76                    }77                else:78                    response = HttpResponse(status=403)79                    response._is_string = True80                    return response81        except Exception, e:82            from raven.contrib.django.raven_compat.models import client83            client.captureException()84            response = HttpResponse(status=500)85            response._is_string = True86            return response87class search_group(BaseHandler):88    """89        REST service based on Django-Piston Library.\n90    """91    def read(self, request, ticket='', term=''):92        """93            Process a search group request.94            Arguments:95            request (HTTP request istance): HTTP request send from client.96            ticket (string) : base 64 ticket.97            term (string) : search term98            Return:99            Successes - Json/xml/yaml format response100            Failure - 403 error101        """102        try:103            if request.GET.get('ticket'):104                client_address = request.META['REMOTE_ADDR']105                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)106                if user is not None:107                    term = request.GET.get('term', '')108                    groups = Group.objects.filter(name__icontains=term)109                    return [{"groupname": g.name, "subscribers": len(g.user_set.all())} for g in groups]110                else:111                    response = HttpResponse(status=403)112                    response._is_string = True113                    return response114        except Exception, e:115            from raven.contrib.django.raven_compat.models import client116            client.captureException()117            response = HttpResponse(status=500)118            response._is_string = True119            return response120def can_be_child(child, parent):121    if str(child.name).lower() == str(parent.name).lower():122        return False123    if parent.parent:124        return can_be_child(child, parent.parent.vphsharesmartgroup)125    return True126class create_group(BaseHandler):127    """128        REST service based on Django-Piston Library.\n129    """130    def read(self, request, ticket='', name='', parent=''):131        """132            Create a smart group133            Arguments:134            request (HTTP request istance): HTTP request send from client.135            ticket (string) : base 64 ticket.136            group (string) : the group name137            parent (string): the parent group name (optional)138            Return:139            Successes - Json/xml/yaml format response140            Failure - 403 error141        """142        try:143            if request.GET.get('ticket'):144                client_address = request.META['REMOTE_ADDR']145                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)146                if user is not None:147                    name = request.GET.get('group')148                    # check if a user with the group name exists149                    try:150                        User.objects.get(username__iexact=name) #select case-insensitive151                        response = HttpResponse(status=500)152                        response._is_string = True153                        return response154                    except ObjectDoesNotExist, e:155                        pass156                    try:157                        Group.objects.get(name__iexact=name)    #select case-insensitive158                        response = HttpResponse(status=500)159                        response._is_string = True160                        return response161                    except ObjectDoesNotExist, e:162                        pass163                    parent = request.GET.get('parent', '')164                    group = VPHShareSmartGroup.objects.create(name=name)165                    group.managers.add(user)166                    group.user_set.add(user)167                    add_local_role(group, user, group_manager)168                    if parent:169                        try:170                            group.parent = Group.objects.get(name=parent)171                        except ObjectDoesNotExist, e:172                            pass173                    group.save()174                    response = HttpResponse(status=200)175                    response._is_string = True176                    response.write("OK")177                    return response178                else:179                    response = HttpResponse(status=403)180                    response._is_string = True181                    return response182        except Exception, e:183            from raven.contrib.django.raven_compat.models import client184            client.captureException()185            response = HttpResponse(status=500)186            response._is_string = True187            return response188class delete_group(BaseHandler):189    """190        REST service based on Django-Piston Library.\n191    """192    def read(self, request, ticket='', name=''):193        """194            Delete a smart group195            Arguments:196            request (HTTP request istance): HTTP request send from client.197            ticket (string) : base 64 ticket.198            group (string) : the group name199            Return:200            Successes - Json/xml/yaml format response201            Failure - 403 error202        """203        try:204            if request.GET.get('ticket'):205                client_address = request.META['REMOTE_ADDR']206                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)207                if user is not None:208                    name = request.GET.get('group')209                    group = VPHShareSmartGroup.objects.get(name=name)210                    if not user in group.managers.all():211                        response = HttpResponse(status=403)212                        response._is_string = True213                        return response214                    group.active = False215                    group.remove_users()216                    # remove this group from children parent reference217                    for child in VPHShareSmartGroup.objects.filter(parent=group):218                        child.parent = None219                        child.save()220                    group.parent = None221                    group.save()222                    response = HttpResponse(status=200)223                    response._is_string = True224                    response.write("OK")225                    return response226                else:227                    response = HttpResponse(status=403)228                    response._is_string = True229                    return response230        except Exception, e:231            from raven.contrib.django.raven_compat.models import client232            client.captureException()233            response = HttpResponse(status=500)234            response._is_string = True235            return response236def add_user_to_group(user, group):237    group.user_set.add(user)238    for child in VPHShareSmartGroup.objects.filter(parent=group):239        add_user_to_group(user, child)240class add_to_group(BaseHandler):241    """242        REST service based on Django-Piston Library.\n243    """244    def read(self, request, ticket='', group='', name=''):245        """246            Add a user to a smart group247            Arguments:248            request (HTTP request istance): HTTP request send from client.249            ticket (string) : base 64 ticket.250            group (string) : the group name251            name (string) : the username or the group name to add252            Return:253            Successes - Json/xml/yaml format response254            Failure - 403 error255        """256        try:257            if request.GET.get('ticket'):258                client_address = request.META['REMOTE_ADDR']259                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)260                if user is not None:261                    group = VPHShareSmartGroup.objects.get(name=request.GET.get('group'))262                    if not group.is_manager(user):263                        response = HttpResponse(status=403)264                        response._is_string = True265                        return response266                    try:267                        user_to_add = User.objects.get(username=request.GET.get('name'))268                        # add user to all children groups269                        if request.GET.get('recursive', False):270                            add_user_to_group(user_to_add, group)271                        else:272                            group.user_set.add(user_to_add)273                    except ObjectDoesNotExist, e:274                        try:275                            group_to_add = VPHShareSmartGroup.objects.get(name=request.GET.get('name'))276                            if not can_be_child(group_to_add, group):277                                response = HttpResponse(status=500, content="constraint violation circularity")278                                response._is_string = True279                                return response280                            group_to_add.parent = group281                            group_to_add.save()282                        except ObjectDoesNotExist, e:283                            response = HttpResponse(status=403)284                            response._is_string = True285                            return response286                    response = HttpResponse(status=200)287                    response._is_string = True288                    response.write("OK")289                    return response290                else:291                    response = HttpResponse(status=403)292                    response._is_string = True293                    return response294        except Exception, e:295            from raven.contrib.django.raven_compat.models import client296            client.captureException()297            response = HttpResponse(status=500)298            response._is_string = True299            return response300class remove_user_from_group(BaseHandler):301    """302        REST service based on Django-Piston Library.\n303    """304    def read(self, request, ticket='', group='', username='', recursive=False):305        """306            Remove a user from a smart group307            Arguments:308            request (HTTP request istance): HTTP request send from client.309            ticket (string) : base 64 ticket.310            group (string) : the group name311            username (string) : the username312            recursive (string) : if present the user will be removed from all the tree of group313            Return:314            Successes - Json/xml/yaml format response315            Failure - 403 error316        """317        try:318            if request.GET.get('ticket'):319                client_address = request.META['REMOTE_ADDR']320                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)321                if user is not None:322                    group = VPHShareSmartGroup.objects.get(name=request.GET.get('group'))323                    user_to_remove = User.objects.get(username=request.GET.get('username'))324                    if not group.is_manager(user):325                        response = HttpResponse(status=403)326                        response._is_string = True327                        return response328                    if request.GET.get('recursive', False):329                        # remove user from all sub groups330                        while group is not None:331                            group.user_set.remove(user_to_remove)332                            try:333                                group = VPHShareSmartGroup.objects.get(parent=group)334                            except ObjectDoesNotExist, e:335                                group = None336                    else:337                        # remove only from this group338                        group.user_set.remove(user_to_remove)339                    response = HttpResponse(status=200)340                    response._is_string = True341                    response.write("OK")342                    return response343                else:344                    response = HttpResponse(status=403)345                    response._is_string = True346                    return response347        except Exception, e:348            from raven.contrib.django.raven_compat.models import client349            client.captureException()350            response = HttpResponse(status=500)351            response._is_string = True352            return response353class group_members(BaseHandler):354    """355        REST service based on Django-Piston Library.\n356    """357    def read(self, request, ticket='', group=''):358        """359            Given a group name, return the list of subscribers360            Arguments:361            request (HTTP request istance): HTTP request send from client.362            ticket (string) : base 64 ticket.363            group (string) : the group name364            Return:365            Successes - Json/xml/yaml format response366            Failure - 403 error367        """368        try:369            if request.GET.get('ticket'):370                client_address = request.META['REMOTE_ADDR']371                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)372                if user is not None:373                    try:374                        group = VPHShareSmartGroup.objects.get(name=request.GET.get('group'))375                    except ObjectDoesNotExist, e:376                        response = HttpResponse(status=404)377                        response._is_string = True378                        return response379                    return {380                        "users": [{"username": user.username, "fullname": "%s %s" % (user.first_name, user.last_name),381                                   "email": user.email} for user in group.user_set.all()],382                        "groups": [{"groupname": g.name, "subscribers": len(g.user_set.all())} for g in383                                   VPHShareSmartGroup.objects.filter(parent=group)]384                    }385                else:386                    response = HttpResponse(status=403)387                    response._is_string = True388                    return response389        except Exception, e:390            from raven.contrib.django.raven_compat.models import client391            client.captureException()392            response = HttpResponse(status=500)393            response._is_string = True394            return response395class user_groups(BaseHandler):396    """397        REST service based on Django-Piston Library.\n398    """399    def read(self, request, ticket='', username=''):400        """401            Given a username, return the list of groups he is part of402            Arguments:403            request (HTTP request istance): HTTP request send from client.404            ticket (string) : base 64 ticket.405            username(string) : the username you want to know the groups406            Return:407            Successes - Json/xml/yaml format response408            Failure - 403 error409        """410        try:411            if request.GET.get('ticket'):412                client_address = request.META['REMOTE_ADDR']413                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)414                if user is not None:415                    try:416                        target_user = User.objects.get(username=request.GET.get('username'))417                    except ObjectDoesNotExist, e:418                        response = HttpResponse(status=404)419                        response._is_string = True420                        return response421                    if request.GET.get('institution', None) is None:422                        res = [{"groupname": g.name, "subscribers": len(g.user_set.all())} for g in423                            target_user.groups.all()]424                    else:425                        res = [{"groupname": g.institution.name, "subscribers": len(g.institution.user_set.all())} for g in426                           InstitutionPortal.objects.all() if target_user in g.institution.user_set.all()]427                    return res428                else:429                    response = HttpResponse(status=403)430                    response._is_string = True431                    return response432        except Exception, e:433            from raven.contrib.django.raven_compat.models import client434            client.captureException()435            response = HttpResponse(status=500)436            response._is_string = True437            return response438class promote_user(BaseHandler):439    """440        REST service based on Django-Piston Library.\n441    """442    def read(self, request, ticket='', group='', username=''):443        """444            Promote a user as manager of a group445            Arguments:446            request (HTTP request istance): HTTP request send from client.447            ticket (string) : base 64 ticket.448            group (string) : the group name449            username (string) : the username450            Return:451            Successes - Json/xml/yaml format response452            Failure - 403 error453        """454        try:455            if request.GET.get('ticket'):456                client_address = request.META['REMOTE_ADDR']457                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)458                if user is not None:459                    group = VPHShareSmartGroup.objects.get(name=request.GET.get('group'))460                    user_to_promote = User.objects.get(username=request.GET.get('username'))461                    if not group.is_manager(user):462                        response = HttpResponse(status=403)463                        response._is_string = True464                        return response465                    # add user to the managers466                    group.managers.add(user_to_promote)467                    # add user to the group and all sub groups468                    while group is not None:469                        group.user_set.add(user_to_promote)470                        try:471                            group = VPHShareSmartGroup.objects.get(parent=group)472                        except ObjectDoesNotExist, e:473                            group = None474                    response = HttpResponse(status=200)475                    response._is_string = True476                    response.write("OK")477                    return response478                else:479                    response = HttpResponse(status=403)480                    response._is_string = True481                    return response482        except Exception, e:483            from raven.contrib.django.raven_compat.models import client484            client.captureException()485            response = HttpResponse(status=500)486            response._is_string = True487            return response488class downgrade_user(BaseHandler):489    """490        REST service based on Django-Piston Library.\n491    """492    def read(self, request, ticket='', group='', username=''):493        """494            Promote a user as manager of a group495            Arguments:496            request (HTTP request istance): HTTP request send from client.497            ticket (string) : base 64 ticket.498            group (string) : the group name499            username (string) : the username500            Return:501            Successes - Json/xml/yaml format response502            Failure - 403 error503        """504        try:505            if request.GET.get('ticket'):506                client_address = request.META['REMOTE_ADDR']507                user, tkt64 = authenticate(ticket=request.GET['ticket'], cip=client_address)508                if user is not None:509                    group = VPHShareSmartGroup.objects.get(name=request.GET.get('group'))510                    user_to_downgrade = User.objects.get(username=request.GET.get('username'))511                    if not group.is_manager(user):512                        response = HttpResponse(status=403)513                        response._is_string = True514                        return response515                    # remove user from the group managers and all sub groups516                    while group is not None:517                        # group.user_set.remove(user_to_downgrade)518                        group.managers.remove(user_to_downgrade)519                        try:520                            group = VPHShareSmartGroup.objects.get(parent=group)521                        except ObjectDoesNotExist, e:522                            group = None523                    response = HttpResponse(status=200)524                    response._is_string = True525                    response.write("OK")526                    return response527                else:528                    response = HttpResponse(status=403)529                    response._is_string = True530                    return response531        except Exception, e:532            from raven.contrib.django.raven_compat.models import client533            client.captureException()534            response = HttpResponse(status=500)535            response._is_string = True...

__init__.py

Source:__init__.py

1from ffindex.content import FFIndexContent2import mmap3try:4    isinstance("", basestring)5    def _is_string(s):6        return isinstance(s, basestring)7except NameError:8    def _is_string(s):9        return isinstance(s, str)10def _to_file(fn, mode="rb"):11    if _is_string(fn):12        return open(fn, mode)13    else:14        return fn15def read(ffindex_data, ffindex_db=None, encoding=None):16    """Generator to parse FFindex entries"""17    if ffindex_db is None:18        if _is_string(ffindex_data):19            ffindex_db = ffindex_data + ".index"20        else:21            raise Exception("When ffindex_data is passed as a file-like object, ffindex_db is required")22    f_db = _to_file(ffindex_db, "r")23    f_data = _to_file(ffindex_data, "r+b")24    m_data = mmap.mmap(f_data.fileno(), 0)25    for l_db in f_db:26        filename, start, length = l_db.strip().split("\t")27        yield FFIndexContent(m_data, int(start), int(length) - 1, filename, encoding)28    m_data.close()29    if _is_string(ffindex_db):30        f_db.close()31    if _is_string(ffindex_data):...

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