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fix(web): issue2551356. Add etag header for not-modified (304) request.
When a 304 is returned to a conditional request for a static file,
print an ETag for the response.
ETag was always sent with a 200 response.
This also adds initial support for if-none-match conditional requests
for static files.
Changes:
Refactors the if-modified-since code out to a method.
It moves a file stat call from serve_static_file to _serve_file
so that an etag can be generated by both serve_static_file and
serve_file which call _serve_file.
Tests added. This does not test the codepath where serve_file pulls
content from the database rather than from a local file on disk.
Test mocking _serve_file changed to account for 5th argument to serve_file
BREAKING CHANGE:
function signature for client.py-Client::_serve_file() now has 5 not 4
parameters (added etag param). Since this is a "hidden" method I am
not too worried about it.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Tue, 10 Dec 2024 16:06:13 -0500 |
| parents | 370cc9052239 |
| children |
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<tal:block metal:use-macro="templates/page/macros/icing"> <title metal:fill-slot="head_title" i18n:translate="">User listing - <span i18n:name="tracker" tal:replace="config/TRACKER_NAME" /></title> <span metal:fill-slot="body_title" tal:omit-tag="python:1" i18n:translate="">User listing</span> <td class="content" metal:fill-slot="content"> <span tal:condition="python:not (context.is_view_ok() or request.user.hasRole('Anonymous'))" i18n:translate="">You are not allowed to view this page.</span> <span tal:condition="python:not context.is_view_ok() and request.user.hasRole('Anonymous')" i18n:translate="">Please login with your username and password.</span> <form tal:condition="context/is_view_ok" method="get" name="itemSynopsis" tal:attributes="action request/classname"> <table class="form" tal:define=" search_input templates/page/macros/search_input;"> <tr><th class="header" colspan="5">Search for users</th></tr> <tr> <th class="header">Username</th> <td tal:define="name string:username"> <input tal:attributes="value python:request.form.getvalue(name) or nothing; name name; id name"/> </td> <th class="header">Realname</th> <td tal:define="name string:realname"> <input tal:attributes="value python:request.form.getvalue(name) or nothing; name name; id name"/> </td> <td><input class="form-small" type="submit" value="Search" i18n:attributes="value"/></td> </tr> </table> <input type="hidden" name="@action" value="search"/> </form> <table width="100%" tal:condition="context/is_view_ok" class="list" tal:define="batch request/batch"> <tr> <th i18n:translate="">Username</th> <th i18n:translate="">Real name</th> <th i18n:translate="">Organisation</th> <th i18n:translate="">Email address</th> <th tal:condition="context/is_edit_ok" i18n:translate="">Retire</th> </tr> <tal:block repeat="user batch"> <tr tal:attributes="class python:['normal', 'alt'][repeat['user'].index%6//3]"> <td> <a tal:attributes="href string:user${user/id}" tal:content="user/username">username</a> </td> <td tal:content="python:user.realname.plain() or default"> </td> <td tal:content="python:user.organisation.plain() or default"> </td> <td tal:content="python:user.address.email() or default"> </td> <td tal:condition="context/is_edit_ok"> <form style="padding:0" method="POST" tal:attributes="action string:user${user/id}"> <input type="hidden" name="@template" value="index"> <input type="hidden" name="@action" value="retire"> <input type="submit" value="retire" i18n:attributes="value"> <input name="@csrf" type="hidden" tal:attributes="value python:utils.anti_csrf_nonce()"> </form> </td> </tr> </tal:block> <tr tal:condition="batch"> <th tal:attributes="colspan python:len(request.columns)"> <table width="100%"> <tr class="navigation"> <th> <a tal:define="prev batch/previous" tal:condition="prev" tal:attributes="href python:request.indexargs_url(request.classname, {'@startwith':prev.first, '@pagesize':prev.size})" i18n:translate=""><< previous</a> </th> <th i18n:translate=""><span tal:replace="batch/start" i18n:name="start" />..<span tal:replace="python: batch.start + batch.length -1" i18n:name="end" /> out of <span tal:replace="batch/sequence_length" i18n:name="total" /></th> <th> <a tal:define="next batch/next" tal:condition="next" tal:attributes="href python:request.indexargs_url(request.classname, {'@startwith':next.first, '@pagesize':next.size})" i18n:translate="">next >></a> </th> </tr> </table> </th> </tr> </table> </td> </tal:block>
