github/datasette
1
0
Fork 0
mirror of https://github.com/simonw/datasette.git synced 2025-12-10 16:51:24 +01:00
Code Issues Projects Releases Packages Wiki Activity

?_ttl= parameter and default_cache_ttl config

Browse source 
Refs #285, Closes #289
This commit is contained in:
Simon Willison 2018-05-26 15:17:33 -07:00
commit b463f60158
No known key found for this signature in database
GPG key ID: 17E2DEA2588B7F52
5 changed files with 39 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
datasette/app.py
View file

@ -83,6 +83,9 @@ CONFIG_OPTIONS = (
ConfigOption("allow_sql", True, """
Allow arbitrary SQL queries via ?sql= parameter
""".strip()),
ConfigOption("default_cache_ttl", 365 * 24 * 60 * 60, """
Default HTTP cache TTL (used in Cache-Control: max-age= header)
""".strip()),
)
DEFAULT_CONFIG = {
option.name: option.default

12
datasette/views/base.py
View file

@ -257,7 +257,17 @@ class BaseView(RenderMixin):
r.status = status_code
# Set far-future cache expiry
if self.ds.cache_headers:
r.headers["Cache-Control"] = "max-age={}".format(365 * 24 * 60 * 60)
ttl = request.args.get("_ttl", None)
if ttl is None or not ttl.isdigit():
ttl = self.ds.config["default_cache_ttl"]
else:
ttl = int(ttl)
if ttl == 0:
ttl_header = 'no-cache'
else:
ttl_header = 'max-age={}'.format(ttl)
r.headers["Cache-Control"] = ttl_header
r.headers["Referrer-Policy"] = "no-referrer"
return r
async def custom_sql(