prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Allow POST on buckets using the id_generator or the id provided in the data.
  
  
  </issue>
  <code>
  [start of kinto/views/buckets.py]
  1 from six import text_type
  2 from uuid import UUID
  3 
  4 from pyramid.httpexceptions import (HTTPForbidden, HTTPPreconditionFailed,
  5                                     HTTPException)
  6 from pyramid.security import NO_PERMISSION_REQUIRED
  7 from pyramid.view import view_config
  8 
  9 from cliquet import resource
  10 from cliquet.utils import hmac_digest, build_request, reapply_cors
  11 
  12 from kinto.views import NameGenerator
  13 
  14 
  15 def create_bucket(request, bucket_id):
  16     """Create a bucket if it doesn't exists."""
  17     bucket_put = (request.method.lower() == 'put' and
  18                   request.path.endswith('buckets/default'))
  19 
  20     if not bucket_put:
  21         subrequest = build_request(request, {
  22             'method': 'PUT',
  23             'path': '/buckets/%s' % bucket_id,
  24             'body': {"data": {}},
  25             'headers': {'If-None-Match': '*'.encode('utf-8')}
  26         })
  27 
  28         try:
  29             request.invoke_subrequest(subrequest)
  30         except HTTPPreconditionFailed:
  31             # The bucket already exists
  32             pass
  33 
  34 
  35 def create_collection(request, bucket_id):
  36     subpath = request.matchdict.get('subpath')
  37     if subpath and subpath.startswith('collections/'):
  38         collection_id = subpath.split('/')[1]
  39         collection_put = (request.method.lower() == 'put' and
  40                           request.path.endswith(collection_id))
  41         if not collection_put:
  42             subrequest = build_request(request, {
  43                 'method': 'PUT',
  44                 'path': '/buckets/%s/collections/%s' % (
  45                     bucket_id, collection_id),
  46                 'body': {"data": {}},
  47                 'headers': {'If-None-Match': '*'.encode('utf-8')}
  48             })
  49             try:
  50                 request.invoke_subrequest(subrequest)
  51             except HTTPPreconditionFailed:
  52                 # The collection already exists
  53                 pass
  54 
  55 
  56 @view_config(route_name='default_bucket', permission=NO_PERMISSION_REQUIRED)
  57 @view_config(route_name='default_bucket_collection',
  58              permission=NO_PERMISSION_REQUIRED)
  59 def default_bucket(request):
  60     if request.method.lower() == 'options':
  61         path = request.path.replace('default', 'unknown')
  62         subrequest = build_request(request, {
  63             'method': 'OPTIONS',
  64             'path': path
  65         })
  66         return request.invoke_subrequest(subrequest)
  67 
  68     if getattr(request, 'prefixed_userid', None) is None:
  69         raise HTTPForbidden  # Pass through the forbidden_view_config
  70 
  71     settings = request.registry.settings
  72     hmac_secret = settings['cliquet.userid_hmac_secret']
  73     # Build the user unguessable bucket_id UUID from its user_id
  74     digest = hmac_digest(hmac_secret, request.prefixed_userid)
  75     bucket_id = text_type(UUID(digest[:32]))
  76     path = request.path.replace('/buckets/default', '/buckets/%s' % bucket_id)
  77     querystring = request.url[(request.url.index(request.path) +
  78                                len(request.path)):]
  79 
  80     # Make sure bucket exists
  81     create_bucket(request, bucket_id)
  82 
  83     # Make sure the collection exists
  84     create_collection(request, bucket_id)
  85 
  86     subrequest = build_request(request, {
  87         'method': request.method,
  88         'path': path + querystring,
  89         'body': request.body
  90     })
  91 
  92     try:
  93         response = request.invoke_subrequest(subrequest)
  94     except HTTPException as error:
  95         response = reapply_cors(subrequest, error)
  96     return response
  97 
  98 
  99 @resource.register(name='bucket',
  100                    collection_methods=('GET',),
  101                    collection_path='/buckets',
  102                    record_path='/buckets/{{id}}')
  103 class Bucket(resource.ProtectedResource):
  104     permissions = ('read', 'write', 'collection:create', 'group:create')
  105 
  106     def __init__(self, *args, **kwargs):
  107         super(Bucket, self).__init__(*args, **kwargs)
  108         self.collection.id_generator = NameGenerator()
  109 
  110     def get_parent_id(self, request):
  111         # Buckets are not isolated by user, unlike Cliquet resources.
  112         return ''
  113 
  114     def delete(self):
  115         result = super(Bucket, self).delete()
  116 
  117         # Delete groups.
  118         storage = self.collection.storage
  119         parent_id = '/buckets/%s' % self.record_id
  120         storage.delete_all(collection_id='group',
  121                            parent_id=parent_id,
  122                            with_deleted=False)
  123         storage.purge_deleted(collection_id='group',
  124                               parent_id=parent_id)
  125 
  126         # Delete collections.
  127         deleted = storage.delete_all(collection_id='collection',
  128                                      parent_id=parent_id,
  129                                      with_deleted=False)
  130         storage.purge_deleted(collection_id='collection',
  131                               parent_id=parent_id)
  132 
  133         # Delete records.
  134         id_field = self.collection.id_field
  135         for collection in deleted:
  136             parent_id = '/buckets/%s/collections/%s' % (self.record_id,
  137                                                         collection[id_field])
  138             storage.delete_all(collection_id='record',
  139                                parent_id=parent_id,
  140                                with_deleted=False)
  141             storage.purge_deleted(collection_id='record', parent_id=parent_id)
  142 
  143         return result
  144
  [end of kinto/views/buckets.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/kinto/views/buckets.py b/kinto/views/buckets.py
  --- a/kinto/views/buckets.py
  +++ b/kinto/views/buckets.py
  @@ -97,7 +97,7 @@
   
   
   @resource.register(name='bucket',
  -                   collection_methods=('GET',),
  +                   collection_methods=('GET', 'POST'),
                      collection_path='/buckets',
                      record_path='/buckets/{{id}}')
   class Bucket(resource.ProtectedResource):
  
verification_info: {"golden_diff": "diff --git a/kinto/views/buckets.py b/kinto/views/buckets.py\n--- a/kinto/views/buckets.py\n+++ b/kinto/views/buckets.py\n@@ -97,7 +97,7 @@\n \n \n @resource.register(name='bucket',\n-                   collection_methods=('GET',),\n+                   collection_methods=('GET', 'POST'),\n                    collection_path='/buckets',\n                    record_path='/buckets/{{id}}')\n class Bucket(resource.ProtectedResource):\n", "issue": "Allow POST on buckets using the id_generator or the id provided in the data.\n\n", "before_files": [{"content": "from six import text_type\nfrom uuid import UUID\n\nfrom pyramid.httpexceptions import (HTTPForbidden, HTTPPreconditionFailed,\n                                    HTTPException)\nfrom pyramid.security import NO_PERMISSION_REQUIRED\nfrom pyramid.view import view_config\n\nfrom cliquet import resource\nfrom cliquet.utils import hmac_digest, build_request, reapply_cors\n\nfrom kinto.views import NameGenerator\n\n\ndef create_bucket(request, bucket_id):\n    \"\"\"Create a bucket if it doesn't exists.\"\"\"\n    bucket_put = (request.method.lower() == 'put' and\n                  request.path.endswith('buckets/default'))\n\n    if not bucket_put:\n        subrequest = build_request(request, {\n            'method': 'PUT',\n            'path': '/buckets/%s' % bucket_id,\n            'body': {\"data\": {}},\n            'headers': {'If-None-Match': '*'.encode('utf-8')}\n        })\n\n        try:\n            request.invoke_subrequest(subrequest)\n        except HTTPPreconditionFailed:\n            # The bucket already exists\n            pass\n\n\ndef create_collection(request, bucket_id):\n    subpath = request.matchdict.get('subpath')\n    if subpath and subpath.startswith('collections/'):\n        collection_id = subpath.split('/')[1]\n        collection_put = (request.method.lower() == 'put' and\n                          request.path.endswith(collection_id))\n        if not collection_put:\n            subrequest = build_request(request, {\n                'method': 'PUT',\n                'path': '/buckets/%s/collections/%s' % (\n                    bucket_id, collection_id),\n                'body': {\"data\": {}},\n                'headers': {'If-None-Match': '*'.encode('utf-8')}\n            })\n            try:\n                request.invoke_subrequest(subrequest)\n            except HTTPPreconditionFailed:\n                # The collection already exists\n                pass\n\n\n@view_config(route_name='default_bucket', permission=NO_PERMISSION_REQUIRED)\n@view_config(route_name='default_bucket_collection',\n             permission=NO_PERMISSION_REQUIRED)\ndef default_bucket(request):\n    if request.method.lower() == 'options':\n        path = request.path.replace('default', 'unknown')\n        subrequest = build_request(request, {\n            'method': 'OPTIONS',\n            'path': path\n        })\n        return request.invoke_subrequest(subrequest)\n\n    if getattr(request, 'prefixed_userid', None) is None:\n        raise HTTPForbidden  # Pass through the forbidden_view_config\n\n    settings = request.registry.settings\n    hmac_secret = settings['cliquet.userid_hmac_secret']\n    # Build the user unguessable bucket_id UUID from its user_id\n    digest = hmac_digest(hmac_secret, request.prefixed_userid)\n    bucket_id = text_type(UUID(digest[:32]))\n    path = request.path.replace('/buckets/default', '/buckets/%s' % bucket_id)\n    querystring = request.url[(request.url.index(request.path) +\n                               len(request.path)):]\n\n    # Make sure bucket exists\n    create_bucket(request, bucket_id)\n\n    # Make sure the collection exists\n    create_collection(request, bucket_id)\n\n    subrequest = build_request(request, {\n        'method': request.method,\n        'path': path + querystring,\n        'body': request.body\n    })\n\n    try:\n        response = request.invoke_subrequest(subrequest)\n    except HTTPException as error:\n        response = reapply_cors(subrequest, error)\n    return response\n\n\n@resource.register(name='bucket',\n                   collection_methods=('GET',),\n                   collection_path='/buckets',\n                   record_path='/buckets/{{id}}')\nclass Bucket(resource.ProtectedResource):\n    permissions = ('read', 'write', 'collection:create', 'group:create')\n\n    def __init__(self, *args, **kwargs):\n        super(Bucket, self).__init__(*args, **kwargs)\n        self.collection.id_generator = NameGenerator()\n\n    def get_parent_id(self, request):\n        # Buckets are not isolated by user, unlike Cliquet resources.\n        return ''\n\n    def delete(self):\n        result = super(Bucket, self).delete()\n\n        # Delete groups.\n        storage = self.collection.storage\n        parent_id = '/buckets/%s' % self.record_id\n        storage.delete_all(collection_id='group',\n                           parent_id=parent_id,\n                           with_deleted=False)\n        storage.purge_deleted(collection_id='group',\n                              parent_id=parent_id)\n\n        # Delete collections.\n        deleted = storage.delete_all(collection_id='collection',\n                                     parent_id=parent_id,\n                                     with_deleted=False)\n        storage.purge_deleted(collection_id='collection',\n                              parent_id=parent_id)\n\n        # Delete records.\n        id_field = self.collection.id_field\n        for collection in deleted:\n            parent_id = '/buckets/%s/collections/%s' % (self.record_id,\n                                                        collection[id_field])\n            storage.delete_all(collection_id='record',\n                               parent_id=parent_id,\n                               with_deleted=False)\n            storage.purge_deleted(collection_id='record', parent_id=parent_id)\n\n        return result\n", "path": "kinto/views/buckets.py"}]}