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<title>[12874] CalendarServer/trunk/calendarserver/webadmin/principals.py</title>
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<dt>Revision</dt> <dd><a href="http://trac.calendarserver.org//changeset/12874">12874</a></dd>
<dt>Author</dt> <dd>wsanchez@apple.com</dd>
<dt>Date</dt> <dd>2014-03-10 18:14:56 -0700 (Mon, 10 Mar 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>Add some code for downloading calendar data.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#CalendarServertrunkcalendarserverwebadminprincipalspy">CalendarServer/trunk/calendarserver/webadmin/principals.py</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="CalendarServertrunkcalendarserverwebadminprincipalspy"></a>
<div class="modfile"><h4>Modified: CalendarServer/trunk/calendarserver/webadmin/principals.py (12873 => 12874)</h4>
<pre class="diff"><span>
<span class="info">--- CalendarServer/trunk/calendarserver/webadmin/principals.py        2014-03-10 23:37:41 UTC (rev 12873)
+++ CalendarServer/trunk/calendarserver/webadmin/principals.py        2014-03-11 01:14:56 UTC (rev 12874)
</span><span class="lines">@@ -25,9 +25,17 @@
</span><span class="cx"> "PrincipalsResource",
</span><span class="cx"> ]
</span><span class="cx">
</span><ins>+from cStringIO import StringIO
+from zipfile import ZipFile
+
</ins><span class="cx"> from twisted.internet.defer import inlineCallbacks, returnValue
</span><span class="cx"> from twisted.web.template import tags as html, renderer
</span><span class="cx">
</span><ins>+from txweb2.stream import MemoryStream
+from txweb2.resource import Resource
+from txweb2.http import Response
+from txweb2.http_headers import MimeType
+
</ins><span class="cx"> from .resource import PageElement, TemplateResource
</span><span class="cx">
</span><span class="cx">
</span><span class="lines">@@ -104,12 +112,13 @@
</span><span class="cx"> addSlash = True
</span><span class="cx">
</span><span class="cx">
</span><del>- def __init__(self, directory):
</del><ins>+ def __init__(self, directory, store):
</ins><span class="cx"> TemplateResource.__init__(
</span><span class="cx"> self, lambda: PrincipalsPageElement(directory)
</span><span class="cx"> )
</span><span class="cx">
</span><span class="cx"> self._directory = directory
</span><ins>+ self._store = store
</ins><span class="cx">
</span><span class="cx">
</span><span class="cx"> def getChild(self, name):
</span><span class="lines">@@ -119,13 +128,13 @@
</span><span class="cx"> record = self._directory.recordWithUID(name)
</span><span class="cx">
</span><span class="cx"> if record:
</span><del>- return PrincipalEditResource(record)
</del><ins>+ return PrincipalResource(record, self._store)
</ins><span class="cx"> else:
</span><span class="cx"> return None
</span><span class="cx">
</span><span class="cx">
</span><span class="cx">
</span><del>-class PrincipalEditPageElement(PageElement):
</del><ins>+class PrincipalPageElement(PageElement):
</ins><span class="cx"> """
</span><span class="cx"> Principal editing page element.
</span><span class="cx"> """
</span><span class="lines">@@ -150,21 +159,127 @@
</span><span class="cx">
</span><span class="cx">
</span><span class="cx">
</span><del>-class PrincipalEditResource(TemplateResource):
</del><ins>+class PrincipalResource(TemplateResource):
</ins><span class="cx"> """
</span><span class="cx"> Principal editing resource.
</span><span class="cx"> """
</span><span class="cx">
</span><del>- addSlash = False
</del><ins>+ addSlash = True
</ins><span class="cx">
</span><span class="cx">
</span><del>- def __init__(self, record):
</del><ins>+ def __init__(self, record, store):
</ins><span class="cx"> TemplateResource.__init__(
</span><del>- self, lambda: PrincipalEditPageElement(record)
</del><ins>+ self, lambda: PrincipalPageElement(record)
</ins><span class="cx"> )
</span><span class="cx">
</span><ins>+ self._record = record
+ self._store = store
</ins><span class="cx">
</span><span class="cx">
</span><ins>+ def getChild(self, name):
+ if name == "":
+ return self
+
+ if name == "calendars_combined":
+ return PrincipalCalendarsExportResource(self._record, self._store)
+
+
+
+class PrincipalCalendarsExportResource(Resource):
+ """
+ Resource that vends a principal's calendars as iCalendar text.
+ """
+
+ addSlash = False
+
+
+ def __init__(self, record, store):
+ Resource.__init__(self)
+
+ self._record = record
+ self._store = store
+
+
+ @inlineCallbacks
+ def calendarComponents(self):
+ uid = self._record.uid
+
+ calendarComponents = []
+
+ txn = self._store.newTransaction()
+ try:
+ calendarHome = yield txn.calendarHomeWithUID(uid)
+
+ if calendarHome is None:
+ raise RuntimeError("No calendar home for UID: {}".format(uid))
+
+ for calendar in (yield calendarHome.calendars()):
+ name = calendar.displayName()
+
+ for calendarObject in (yield calendar.calendarObjects()):
+ perUser = yield calendarObject.filteredComponent(uid, True)
+ calendarComponents.add((name, perUser))
+
+ finally:
+ txn.abort()
+
+ returnValue(calendarComponents)
+
+
+ @inlineCallbacks
+ def iCalendarZipArchiveData(self):
+ calendarComponents = yield self.calendarComponents()
+
+ fileHandle = StringIO()
+ try:
+ zipFile = ZipFile(fileHandle, "w", allowZip64=True)
+ try:
+ zipFile.comment = (
+ "Calendars for UID: {}".format(self._record.uid)
+ )
+
+ names = set()
+
+ for name, component in calendarComponents:
+ if name in names:
+ i = 0
+ while True:
+ i += 1
+ nextName = "{} {:d}".format(name, i)
+ if nextName not in names:
+ name = nextName
+ break
+ assert i < len(calendarComponents)
+
+ text = component.getText().encode("utf-8")
+
+ zipFile.writestr(name.encode("utf-8"), text)
+
+ finally:
+ zipFile.close()
+
+ data = fileHandle.getvalue()
+ finally:
+ fileHandle.close()
+
+ returnValue(data)
+
+
+ @inlineCallbacks
+ def render(self, request):
+ response = Response()
+ response.stream = MemoryStream((yield self.iCalendarZipArchiveData()))
+
+ # FIXME: Use content-encoding instead?
+ response.headers.setHeader(
+ b"content-type",
+ MimeType.fromString(b"application/zip")
+ )
+
+ returnValue(response)
+
+
+
</ins><span class="cx"> def searchTerms(request):
</span><span class="cx"> if not hasattr(request, "_search_terms"):
</span><span class="cx"> terms = set()
</span></span></pre>
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