Add the CalDAV client and a CLI to drive it
Discovery is the three PROPFINDs RFC 4791 describes rather than a walk through likely URLs. Queries use time-range, which v1 never did -- it fetched whole calendars and filtered in the browser on every view change. Every write states a precondition, so a stale ETag produces a Conflict a caller can act on instead of silently destroying somebody's edit. XML goes through quick-xml with namespace resolution. v1 matched prefixes with six regexes tried in sequence and recompiled inside the loop; there is a fixture here that is the same document under different prefixes, and it parses identically. Protocol parsing is split from transport so it can be tested against responses recorded from a real Baikal -- including the second propstat carrying 404s, which is what makes "this calendar has no colour" different from "this calendar has an empty colour". Live tests run against a real server, never a mock. tests/baikal/run.sh starts a container, walks Baikal's install wizard, and runs them; each test builds and destroys its own collection, so pointing it at a real server touches nothing that was already there. They cover discovery, round-trip, stale-ETag conflict, duplicate create, delete, time-range filtering, a series returned whole with its override, and writing every synthetic golden fixture to the server and reading it back. libdav was evaluated first, as planned. Not adopted: its HttpClient trait is defined over hyper::body::Incoming, so using it means replacing reqwest everywhere, plus a DNS resolver for service discovery we do not do and a second XML parser. Its precondition design is where Precondition's shape comes from. Reasons are recorded in the crate docs.
This commit is contained in:
@@ -0,0 +1,200 @@
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<?xml version="1.0" ?>
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<multistatus xmlns="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:card="urn:ietf:params:xml:ns:carddav">
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<response>
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<href>/dav.php/calendars/alex/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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</resourcetype>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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<propstat>
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<prop>
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<displayname/>
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<CAL:calendar-description/>
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<CAL:supported-calendar-component-set/>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/"/>
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<cs:getctag/>
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</prop>
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<status>HTTP/1.1 404 Not Found</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/household-chores/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:calendar/>
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</resourcetype>
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<displayname>Household Chores</displayname>
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<CAL:supported-calendar-component-set>
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<CAL:comp name="VEVENT"/>
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</CAL:supported-calendar-component-set>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/">#DC2626</x1:calendar-color>
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<cs:getctag>http://sabre.io/ns/sync/4</cs:getctag>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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<propstat>
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<prop>
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<CAL:calendar-description/>
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</prop>
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<status>HTTP/1.1 404 Not Found</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/partner-chores/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:calendar/>
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</resourcetype>
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<displayname>Partner Chores</displayname>
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<CAL:supported-calendar-component-set>
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<CAL:comp name="VEVENT"/>
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</CAL:supported-calendar-component-set>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/">#7C3AED</x1:calendar-color>
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<cs:getctag>http://sabre.io/ns/sync/6</cs:getctag>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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<propstat>
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<prop>
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<CAL:calendar-description/>
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</prop>
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<status>HTTP/1.1 404 Not Found</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/trips/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:calendar/>
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</resourcetype>
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<displayname>Trips</displayname>
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<CAL:supported-calendar-component-set>
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<CAL:comp name="VEVENT"/>
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</CAL:supported-calendar-component-set>
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<cs:getctag>http://sabre.io/ns/sync/23</cs:getctag>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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<propstat>
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<prop>
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<CAL:calendar-description/>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/"/>
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</prop>
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<status>HTTP/1.1 404 Not Found</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/workouts/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:calendar/>
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</resourcetype>
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<displayname>Workouts</displayname>
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<CAL:calendar-description>Calendar for logging workouts</CAL:calendar-description>
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<CAL:supported-calendar-component-set>
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<CAL:comp name="VEVENT"/>
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</CAL:supported-calendar-component-set>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/">#3B82F6</x1:calendar-color>
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<cs:getctag>http://sabre.io/ns/sync/64</cs:getctag>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/birthdays/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:calendar/>
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<cs:shared-owner/>
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</resourcetype>
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<displayname>Birthdays</displayname>
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<CAL:calendar-description/>
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<CAL:supported-calendar-component-set>
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<CAL:comp name="VEVENT"/>
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</CAL:supported-calendar-component-set>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/">#DD403A</x1:calendar-color>
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<cs:getctag>http://sabre.io/ns/sync/36</cs:getctag>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/personal/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:calendar/>
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</resourcetype>
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<displayname>Personal</displayname>
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<CAL:calendar-description/>
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<CAL:supported-calendar-component-set>
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<CAL:comp name="VEVENT"/>
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<CAL:comp name="VTODO"/>
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<CAL:comp name="VJOURNAL"/>
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</CAL:supported-calendar-component-set>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/">#0CCE6B</x1:calendar-color>
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<cs:getctag>http://sabre.io/ns/sync/930</cs:getctag>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/inbox/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:schedule-inbox/>
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</resourcetype>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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<propstat>
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<prop>
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<displayname/>
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<CAL:calendar-description/>
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<CAL:supported-calendar-component-set/>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/"/>
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<cs:getctag/>
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</prop>
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<status>HTTP/1.1 404 Not Found</status>
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</propstat>
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</response>
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<response>
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<href>/dav.php/calendars/alex/outbox/</href>
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<propstat>
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<prop>
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<resourcetype>
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<collection/>
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<CAL:schedule-outbox/>
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</resourcetype>
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</prop>
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<status>HTTP/1.1 200 OK</status>
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</propstat>
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<propstat>
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<prop>
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<displayname/>
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<CAL:calendar-description/>
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<CAL:supported-calendar-component-set/>
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<x1:calendar-color xmlns:x1="http://apple.com/ns/ical/"/>
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<cs:getctag/>
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</prop>
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<status>HTTP/1.1 404 Not Found</status>
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</propstat>
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</response>
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</multistatus>
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