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Added --cors argument to enable CORS

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Closes #75
This commit is contained in:
Simon Willison 2017-11-13 10:17:42 -08:00
commit 97c4bf4271
3 changed files with 14 additions and 8 deletions
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16
datasette/app.py
View file

@ -48,7 +48,8 @@ class BaseView(HTTPMethodView):
def options(self, request, *args, **kwargs):
r = response.text('ok')
r.headers['Access-Control-Allow-Origin'] = '*'
if self.ds.cors:
r.headers['Access-Control-Allow-Origin'] = '*'
return r
def redirect(self, request, path):
@ -58,7 +59,8 @@ class BaseView(HTTPMethodView):
)
r = response.redirect(path)
r.headers['Link'] = '<{}>; rel=preload'.format(path)
r.headers['Access-Control-Allow-Origin'] = '*'
if self.ds.cors:
r.headers['Access-Control-Allow-Origin'] = '*'
return r
async def pks_for_table(self, name, table):
@ -174,15 +176,16 @@ class BaseView(HTTPMethodView):
dict(zip(columns, row))
for row in rows
]
headers = {}
if self.ds.cors:
headers['Access-Control-Allow-Origin'] = '*'
r = response.HTTPResponse(
json.dumps(
data, cls=CustomJSONEncoder
),
status=status_code,
content_type='application/json',
headers={
'Access-Control-Allow-Origin': '*'
}
headers=headers,
)
else:
context = {**data, **dict(
@ -473,7 +476,7 @@ class RowView(BaseView):
class Datasette:
def __init__(self, files, num_threads=3, cache_headers=True, page_size=50, inspect_data=None, metadata=None):
def __init__(self, files, num_threads=3, cache_headers=True, page_size=50, cors=False, inspect_data=None, metadata=None):
self.files = files
self.num_threads = num_threads
self.executor = futures.ThreadPoolExecutor(
@ -481,6 +484,7 @@ class Datasette:
)
self.cache_headers = cache_headers
self.page_size = page_size
self.cors = cors
self._inspect = inspect_data
self.metadata = metadata