app redirect for paypal
[wolnelektury.git] / src / api / handlers.py
index 35a3009..830f0a9 100644 (file)
@@ -6,18 +6,24 @@ import json
 
 from django.contrib.sites.models import Site
 from django.core.urlresolvers import reverse
+from django.http.response import HttpResponse
 from django.utils.functional import lazy
+from django.db import models
+from migdal.models import Entry
 from piston.handler import AnonymousBaseHandler, BaseHandler
 from piston.utils import rc
 from sorl.thumbnail import default
 
+from api.models import BookUserData
 from catalogue.forms import BookImportForm
 from catalogue.models import Book, Tag, BookMedia, Fragment, Collection
 from catalogue.models.tag import prefetch_relations
+from catalogue.utils import is_subscribed
 from picture.models import Picture
 from picture.forms import PictureImportForm
 
 from stats.utils import piwik_track
+from wolnelektury.utils import re_escape
 
 from . import emitters  # Register our emitters
 
@@ -144,9 +150,12 @@ class BookDetails(object):
                     book.cover, "139x193").url if book.cover else ''
 
     @classmethod
-    def cover_source_image(cls, book):
-        url = book.cover_source()
-        return url.rstrip('/') + '/file/'
+    def simple_thumb(cls, book):
+        return MEDIA_BASE + book.cover_api_thumb.url if book.cover_api_thumb else ''
+
+    @classmethod
+    def simple_cover(cls, book):
+        return MEDIA_BASE + book.simple_cover.url if book.simple_cover else ''
 
 
 class BookDetailHandler(BaseHandler, BookDetails):
@@ -156,7 +165,8 @@ class BookDetailHandler(BaseHandler, BookDetails):
     """
     allowed_methods = ['GET']
     fields = ['title', 'parent', 'children'] + Book.formats + [
-        'media', 'url', 'cover', 'cover_thumb', 'fragment_data'] + [
+        'media', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'simple_cover', 'fragment_data', 'audio_length',
+        'preview'] + [
             category_plural[c] for c in book_tag_categories]
 
     @piwik_track
@@ -175,7 +185,7 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails):
     """
     allowed_methods = ('GET',)
     model = Book
-    fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug']
+    fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug', 'simple_thumb', 'has_audio']
 
     @classmethod
     def genres(cls, book):
@@ -273,28 +283,64 @@ class BooksHandler(BookDetailHandler):
             return rc.NOT_FOUND
 
 
+class EpubHandler(BookDetailHandler):
+    def read(self, request, slug):
+        if not is_subscribed(request.user):
+            return rc.FORBIDDEN
+        try:
+            book = Book.objects.get(slug=slug)
+        except Book.DoesNotExist:
+            return rc.NOT_FOUND
+        response = HttpResponse(book.get_media('epub'))
+        return response
+
+
 class EBooksHandler(AnonymousBooksHandler):
     fields = ('author', 'href', 'title', 'cover') + tuple(Book.ebook_formats) + ('slug',)
 
 
+class BookProxy(models.Model):
+    class Meta:
+        managed = False
+
+    def __init__(self, book, key):
+        self.book = book
+        self.key = key
+
+    def __getattr__(self, item):
+        if item not in ('book', 'key'):
+            return self.book.__getattribute__(item)
+        else:
+            return self.__getattribute__(item)
+
+
+class QuerySetProxy(models.QuerySet):
+    def __init__(self, l):
+        self.list = l
+
+    def __iter__(self):
+        return iter(self.list)
+
+
 class FilterBooksHandler(AnonymousBooksHandler):
     fields = book_tag_categories + [
-        'href', 'title', 'url', 'cover', 'cover_thumb', 'key', 'cover_source_image']
+        'href', 'title', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'has_audio', 'slug', 'key']
+
+    def parse_bool(self, s):
+        if s in ('true', 'false'):
+            return s == 'true'
+        else:
+            return None
 
     def read(self, request):
         key_sep = '$'
         search_string = request.GET.get('search')
-        is_lektura = request.GET.get('lektura')
-        is_audiobook = request.GET.get('audiobook')
+        is_lektura = self.parse_bool(request.GET.get('lektura'))
+        is_audiobook = self.parse_bool(request.GET.get('audiobook'))
+        preview = self.parse_bool(request.GET.get('preview'))
 
         after = request.GET.get('after')
-        count = request.GET.get('count', 50)
-        if is_lektura in ('true', 'false'):
-            is_lektura = is_lektura == 'true'
-        else:
-            is_lektura = None
-        if is_audiobook in ('true', 'false'):
-            is_audiobook = is_audiobook == 'true'
+        count = int(request.GET.get('count', 50))
         books = Book.objects.distinct().order_by('slug')
         if is_lektura is not None:
             books = books.filter(has_audience=is_lektura)
@@ -303,6 +349,8 @@ class FilterBooksHandler(AnonymousBooksHandler):
                 books = books.filter(media__type='mp3')
             else:
                 books = books.exclude(media__type='mp3')
+        if preview is not None:
+            books = books.filter(preview=preview)
         for key in request.GET:
             if key in category_singular:
                 category = category_singular[key]
@@ -313,6 +361,7 @@ class FilterBooksHandler(AnonymousBooksHandler):
         if (search_string is not None) and len(search_string) < 3:
             search_string = None
         if search_string:
+            search_string = re_escape(search_string)
             books_author = books.filter(cached_author__iregex='\m' + search_string)
             books_title = books.filter(title__iregex='\m' + search_string)
             books_title = books_title.exclude(id__in=list(books_author.values_list('id', flat=True)))
@@ -336,14 +385,13 @@ class FilterBooksHandler(AnonymousBooksHandler):
             for category in book_tag_categories:
                 book_list = prefetch_relations(book_list, category)
             remaining_count = count - len(filtered_books)
-            new_books = list(book_list[:remaining_count])
-            for book in new_books:
-                book.key = '%s%s%s' % (label, key_sep, book.slug)
+            new_books = [BookProxy(book, '%s%s%s' % (label, key_sep, book.slug))
+                         for book in book_list[:remaining_count]]
             filtered_books += new_books
             if len(filtered_books) == count:
                 break
 
-        return filtered_books
+        return QuerySetProxy(filtered_books)
 
 
 # add categorized tags fields for Book
@@ -366,18 +414,18 @@ def add_tag_getters():
         setattr(BookDetails, plural, _tags_getter(singular))
         setattr(BookDetails, singular, _tag_getter(singular))
 
+
 add_tag_getters()
 
 
 # add fields for files in Book
 def _file_getter(book_format):
-    field = "%s_file" % book_format
 
-    @classmethod
-    def get_file(cls, book):
-        f = getattr(book, field)
-        if f:
-            return MEDIA_BASE + f.url
+    @staticmethod
+    def get_file(book):
+        f_url = book.media_url(book_format)
+        if f_url:
+            return MEDIA_BASE + f_url
         else:
             return ''
     return get_file
@@ -387,6 +435,7 @@ def add_file_getters():
     for book_format in Book.formats:
         setattr(BookDetails, book_format, _file_getter(book_format))
 
+
 add_file_getters()
 
 
@@ -501,6 +550,13 @@ class TagsHandler(BaseHandler, TagDetails):
 
         tags = Tag.objects.filter(category=category_sng).exclude(items=None).order_by('slug')
 
+        book_only = request.GET.get('book_only') == 'true'
+        picture_only = request.GET.get('picture_only') == 'true'
+        if book_only:
+            tags = tags.filter(for_books=True)
+        if picture_only:
+            tags = tags.filter(for_pictures=True)
+
         if after:
             tags = tags.filter(slug__gt=after)
         if before:
@@ -571,7 +627,7 @@ class FragmentsHandler(BaseHandler, FragmentDetails):
 
         """
         try:
-            tags, ancestors = read_tags(tags, allowed=self.categories)
+            tags, ancestors = read_tags(tags, request, allowed=self.categories)
         except ValueError:
             return rc.NOT_FOUND
         fragments = Fragment.tagged.with_all(tags).select_related('book')
@@ -597,3 +653,92 @@ class PictureHandler(BaseHandler):
             return rc.CREATED
         else:
             return rc.NOT_FOUND
+
+
+class UserDataHandler(BaseHandler):
+    model = BookUserData
+    fields = ('state', 'username')
+    allowed_methods = ('GET', 'POST')
+
+    def read(self, request, slug=None):
+        if not request.user.is_authenticated():
+            return rc.FORBIDDEN
+        if slug is None:
+            return {'username': request.user.username}
+        try:
+            book = Book.objects.get(slug=slug)
+        except Book.DoesNotExist:
+            return rc.NOT_FOUND
+        try:
+            data = BookUserData.objects.get(book=book, user=request.user)
+        except BookUserData.DoesNotExist:
+            return {'state': 'not_started'}
+        return data
+
+    def create(self, request, slug, state):
+        try:
+            book = Book.objects.get(slug=slug)
+        except Book.DoesNotExist:
+            return rc.NOT_FOUND
+        if not request.user.is_authenticated():
+            return rc.FORBIDDEN
+        if state not in ('reading', 'complete'):
+            return rc.NOT_FOUND
+        data, created = BookUserData.objects.get_or_create(book=book, user=request.user)
+        data.state = state
+        data.save()
+        return data
+
+
+class UserShelfHandler(BookDetailHandler):
+    fields = book_tag_categories + [
+        'href', 'title', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'slug', 'key']
+
+    def parse_bool(self, s):
+        if s in ('true', 'false'):
+            return s == 'true'
+        else:
+            return None
+
+    def read(self, request, state):
+        if not request.user.is_authenticated():
+            return rc.FORBIDDEN
+        if state not in ('reading', 'complete'):
+            return rc.NOT_FOUND
+        after = request.GET.get('after')
+        count = int(request.GET.get('count', 50))
+        ids = BookUserData.objects.filter(user=request.user, complete=state == 'complete')\
+            .values_list('book_id', flat=True)
+        books = Book.objects.filter(id__in=list(ids)).distinct().order_by('slug')
+        if after:
+            books = books.filter(slug__gt=after)
+        if count:
+            books = books[:count]
+        return books
+
+
+class BlogEntryHandler(BaseHandler):
+    model = Entry
+    fields = ('title', 'lead', 'body', 'place', 'time', 'image_url', 'gallery_urls', 'type', 'key')
+
+    def read(self, request):
+        after = request.GET.get('after')
+        count = int(request.GET.get('count', 20))
+        entries = Entry.published_objects.filter(in_stream=True).order_by('-first_published_at')
+        if after:
+            entries = entries.filter(first_published_at__lt=after)
+        if count:
+            entries = entries[:count]
+        return entries
+
+    @classmethod
+    def image_url(cls, entry):
+        return entry.image.url if entry.image else None
+
+    @classmethod
+    def gallery_urls(cls, entry):
+        return [photo.url() for photo in entry.photo_set.all()]
+
+    @classmethod
+    def key(cls, entry):
+        return entry.first_published_at