File contents
Zope Changes
This file contains change information for the current Zope release.
Change information for previous versions of Zope can be found in the
file HISTORY.txt.
after Zope 2.5.1
new Features:
- Added support for gzip content compression for clients that
support it. See lib/python/ZPublisher/HTTPResponse.py for more
details.
- Added ZCTextIndex plug-in index product. A replacement for TextIndex.
- Removed the venerable but senile QuickStart folder from the
default FileStorage. "Alas, poor Yorick! I knew him, Horatio."
- Signal handling and log rotation
All Zope process will respond to signals in the specified manner:
SIGHUP - close open database connections and sockets, then restart the
process
SIGTERM - close open database connections and sockets, then shut down.
SIGINT - same as SIGTERM
SIGUSR2 - rotate all Zope log files (z2.log, event log, detailed log)
The common idiom for doing automated logfile rotation will become:
kill -USR2 `cat /path/to/var/z2.pid`
The common idiom for doing "prophylactic" restarts will become:
kill -HUP `cat /path/to/var/z2.pid`
When a process is interrupted via ctrl-C or via a TERM signal
(INT, TERM), all open database connections and sockets will be closed
before the process dies. This will speed up restart time for sites
that use a FileStorage as its index will be written to the filesystem
before shutdown.
Unspecified signals kill the process without doing cleanup.
- ZCatalog no longer has a hand in managing text index vocabularies.
The cruft associated with this functionality has been exorcised.
No default indexes or metadata elements are defined for you when
you create a new ZCatalog. Since we now have many new kinds of
plug-in indexes it no longer made sense to do this
anymore.
- A new permission "Copy or Move" was added. This permission
may be used respective to an object to prevent objects
from being copyable or movable while within the management
interface. The "old" behavior stipulated that users whom
possessed the "View management screens" permission to an object's
container could copy or move the object arbitrarily, even if they
had limited access to the object itself. Once the object was
moved or copied, the user became the owner of the new object,
allowing them to see potentially sensitive information in
the management interface for the object itself. This permission
is granted to Manager and Anonymous by default, and must be
revoked on an object-by-object basis if site managers intend
to provide management screen access to folders which contain
sensitive subobjects. This patch came as a result of
Collector #376 (thanks to Chris Deckard).
- Structured Text's "DocumentWithImages" class did not recognize
image filenames with underscores.
- The getElementsByTagName method of STDOM (used by Structured Text)
would croak on most documents, especially those containing
unwrapped text nodes. Fixed.
- FileUpload objects now evaluate false when the have an empty file
name. Making it easier to check for omitted file upload form fields.
- ZClasses now use a python script as their constructor method
instead of a DTML method. Also, ZClasses inherit from
CatalogPathAwareness now instead of CatalogAwareness.
- added browser_default hook to ZPublisher. This allows objects to
specify the path to the default method that the publisher calls
when the object is published. The default for objects not defining
browser_default is still 'index_html' for bw compatibility.
A ZMI configurable browser_default implementation has been added
to ObjectManager. You can configure browser_default for OMs via
a new "settings" management tab.
- added TopicIndexes: a TopicIndex is a container for
so-called FilteredSet. A FilteredSet consists of an
expression and a set of internal ZCatalog document
identifiers that represent a pre-calculated result list for
performance reasons. Instead of executing the same query on
a ZCatalog multiple times it is much faster to use a
TopicIndex instead.
- requestprofiler: added new --daysago option and added
support for reading gzipped detailed logfiles
- DateTime: new functions JulianDay() and week()
to perform calculation of the week number based on the
Julian calendar.
- WebDAV: the new environment variable WEBDAV_SOURCE_PORT_CLIENTS
enables retrieval of the document source for dedicated WebDAV
clients (see ENVIRONMENT.txt for usage)
- Collector #272: Optimisations for RESPONSE.write
- Collector #271: New environment variables are now used
to send the access log into syslog. ZSYSLOG_ACCESS,
ZSYSLOG_ACCESS_FACILITY, and SYSLOG_ACCESS_SERVER now
do the same job as the old environment variables without
_ACCESS in their name. Those old environment variables
still do the same job of sending the event log to syslog.
- When run as a daemon on Unix, Zope will now redirect
stdin/stdout/stderr to /dev/null
- Nicer formatting for the increasingly tall permissions
table.
- TextIndex: Enhanced splitter functionality now allows the
TextIndex to index numbers, single characters. It is also
possible to enable case-sensitive indexing. The new
configuration options are available through the addForm
of the Vocabulary object.
- ICP server support. For more information see
http://www.zope.org/Members/htrd/icp/intro
- STXNG: added new env. variable STX_DEFAULT_LEVEL to change
the default level for <Hx> elements (see doc/ENVIRONMENT.txt)
- Collector #304: several catalog optimisations
- New implementation of ZODB object cache. The new
implemenation is more likely to keep the size of the object
cache close to the target size. This change means that memory
consumption may be reduced. Some users will need to increase
the default cache size, because a too small setting is more
likely to hurt performance than it did in the past.
Third-party C extensions that use the persistence API must be
recompiled, and may need to be updated to work correctly with
the new cache; see PER_GHOSTIFY().
- The ZODB Connection is now resposible for registering changed
objects with the current transaction.
- Implementation of RestrictedCreation fishbowl proposal;
Product registration can now include a function used to
determine whether that product constructor want to allow
objects to be created in the specified container object.
- Collector 196: manage_page_style.css is now cacheable.
Added freshness information to ImageFile, to improve
cacheability of management interface
- Collector 358: added a new parameter no_push_item to
dtml-in, to inhibit automatically pushing sequence-item
onto the namespace stack.
- STXNG: Structured Text now supports images by default
by using the HTMLWithImages class (has been disabled prior
to Zope 2.6)
- new option --force-http-connection-close for z2.py to prevent
clients from maintaing pipelined connections to the Zope server
(Collector #412)
- Updated the Interface package to be compatible with Zope 3
Interfaces. This included changing some interface APIs that
may affect existing products.
- Added a database activity monitoring graph to the control panel,
making it easier to tune the ZODB cache size.
Bugs:
- External methods didn't properly setup func_defaults and func_code
when they were first loaded. This meant mapply couldn't properly map
arguments on the first try.
- Fixed bug #96: Narrower/Wider buttons now work on both CSS and non-CSS
compliant browsers. This allows better control for browsers that have a
hard time knowing what 100% means.
- Fix for Collector #319: filtered_manage_options didn't
correctly filter tabs based on permission.
- Made repr of an HTTPRequest.record eval'able as a dict (Collector
#89).
- Fixed bug #144: Upload button on dtml, py scripts, images, files and
pts now raises an error if the file is not specified rather than
clearing the source.
- Fixed bug #275: setPermissionDefault didn't actually set the
right permission -> role mappings.
- Fixed bug reported on maillist during EWOULDBLOCK when using FTP server
(http:// lists.zope.org/pipermail/zope/2002-March/111521.html).
- App/FindHomes.py now computes the "real" path for SOFTWARE_HOME and
INSTANCE_HOME, resolving any symlinks in any element within paths
passed in via the INSTANCE_HOME or SOFTWARE_HOME envvars. Paths that
are computed by "dead reckoning" from os.getcwd and module paths are
also "realpathed". So for instance, if you use '/home/chrism/Instance'
as your INSTANCE_HOME, and '/home/chrism' is a symlink to
'/other/home/chrism', your INSTANCE_HOME will be computed as
'/other/home/chrism/Instance'. This is necessary to avoid
weirdnesses while using "dead reckoning" from INSTANCE_HOME and
SOFTWARE_HOME in other parts of the code. POSIX systems only.
- Fixed PropertyManager/PropertySheets so that you can safely add a
property named 'ids' without breaking your properties page.
- Removed spurious 'self' from scarecrow interfaces; updated
method-generation in Interface package to ignore self when
source is a method (rather than a function).
- Collector #32: Use difflib instead of ndiff
- Fixed long standing bug in PythonScript where get_size returned
the incorrect length. This broke editing using EMACS via FTP or
WebDAV. Thanks to John Glavin at South River Technologies for
help finding the bug.
- Collector #207: fixed problem with inner links in STXNG
- Collector #210: HTML() function of StructuredText produced wrong
<h0> tags.
- Collector #166: ObjectManger.all_meta_types() implemented only
an incomplete filter based on interfaces.
- FTP: Downloading files through FTP has been broken since 2.4.0
because the downloaded file has been stored with a HTTP
header at the beginning of the file. Fixed!
- FTP: Spaces in usernames inside a FTP file listing are now
replaced by underscores to avoid confusion with some FTP clients.
- Collector #227: improved handling of unicode string in TextIndex.py
with unmodified default encoding in site.py.
- Collector #227: z2.py, TextIndex/dtml/manage_vocab.dtml modified
to display unicode strings in the vocabulary properly (now using
UTF-8 encoding for display purposes)
- Collector #250: applied several patches for TextIndex for better
unicode support for the GlobbingLexicon
- Collector #254: return owner object from getOwner wrapped in its
context
- Collector #259: walkandscrub.py did not delete all .pyc and .pyo
files during installation. Fixed.
- Collector #231: BTrees ignoring errors from comparison function
- Collector #278: DocumentWithImages could not handle URLs with
underscores
- Collector #279: changed exception handling for safegmtime() to
provide a more intuitive traceback for operating systems with a
limited gmtime() implementations
- Collector #285: Zope changes its working directory
to the var directory at startup
- WebDAV: removing an non-existing property now returns a HTTP
200-OK response instead of 404 (now compliant with RFC 2518)
- Fixed a bug in TM.py that would cause database adapters to hang
on errors in the second phase of the two-phase commit.
- Collector #291: ZCatalog not unindexing deleted properties
- Collector #266: Retried requests losing track of http request
headers, causing Connection:Close requests to stall
- Collector #17: Fixed broken links in StandardCacheManagers help
- Collector #1: UNIX security fixes: make starting Zope as 'root'
secure, stop using 'nobody', warn of insecure umasks
- Collector #303: Properties of type 'long' got truncated
- Collector #325: adding a new TextIndex to an existing Catalog
cleared the standard Vocabulary.
- Collector #373: content_type property for Image objects
are no longer deletable to prevent malfunction.
- Collector #343: The ZCatalogs 'Indexes' view showed the
wrong number of indexed objects for FieldIndexes.
- FTP server: replaced 'System_Process' by 'Sysproc' to
avoid breaking some FTP clients and the output format
with overlong usernames.
- Fixed a potential bug with cAccessControl's permission
role deallocator which would try to decref things which
may not have been set, due to a change in the initializer
(which will bail out if it doesnt get called with a tuple
argument)
- Collector #185, 341: PCGIServer and FCGIServer logs corrected
and now output extended information like HTTPServer does.
- Propertysheets: Ids like 'values' and 'items' are
now forbidden as they break WebDAV functionality. Existing
Propertysheets are not affected
- Collector #348: decapitate() now recognizes both \r\n and \n\n
to be compliant with the HTTP RFC
- Collector #386: workaround for hanging FTP connections
with NcFTP
- Collector #419: repaired off-by-1 errors and IndexErrors
when slicing BTree-based data structures. For example,
an_IIBTree.items()[0:0] had length 1 (should be empty) if
the tree wsan't empty.
Zope 2.5.1 beta 1
Bugs Fixed
- Fixed failed incref in cAccessControl that caused problems when
ghosting occured.
Zope 2.5.0
Bugs Fixed
- Btree module and UnicodeSplitter could potentially
fail to incref Py_None on return
- Setting proxy roles on DTMLMethods and Documents has been broken
- Collector #99: items(), keys() and values() methods
of IIBucket objects has been broken when called with
min/max parameters.
- WebDAV: The long outstanding read-only problem with WinWord
and .html is finally solved. Zope sends now an additional ETag
header for DTMLMethods and DTMLDocuments. Many thanks to
Joachim Schmitz for this hint.
- PathIndex: fixed minor bugs, enhanced testsuite
- DTML-MIME tag: creates now a 'Mime-Version: 1.0' to make
some fussy email programs happy
- utilities/requestprofiler - fixed bugs in timed mode which could
show nonsensical results.
Features Added
- TextIndex/Splitters: the constructor of all three splitters
has now three new optional parameters:
'maxlen'=(1-256) - to specify the maximum length of
splitted words
'singlechar'=(1|0) - allows single characters to be indexed
'indexnumbers'=(1|0)- allows numbers to be indexed
The default values of all parameters reflect the standard
behaviour.
- Enhancements to utilites/requestprofiler.py:
Added readstats and writestats features which allow for saves and
reuse of profile stats between runs of the requestprofiler.
Added urlfocus mode. Urlfocus mode presents a summary of
activity within a period of time before and after the
invocation of a particular URL as it was recorded in the big M
log. This can be useful when trying to track down a problem
which you believe is related to some series of URL invocations
as opposed to a single URL invocation.
- added doc/ENVIRONMENT.txt to document all used environment
variables Zope is using
- Provided a much more robust tool for recovering data from
damaged FileStorage files:
Allow recovery of data when:
- either transaction or data records are damaged and when
- multiple parts of a file are damaged
The interface has changed to not modify in place.
Other features:
- Progress indicator
- Verbose output
- optional packing
- index creation
- The last entry in the breadcrumb path in the ZMI is now an
underlined hyperlink.
- Added a new script "utitilies/check_catalog.py" to perform
some consistency checks on a ZCatalog instance
- Added the following new products related to sessioning:
- browser id manager
- session data manager
- transient object container
- temporary folder
- Zope will create default sessioning objects on startup
- Zope will create an Examples folder on startup. This folder
contains a collection of simple example applications.
Bugs Fixed
- STXNG: added '+' as allowed character inside URLs
- enhanced the checks for 'Domains' field in the UserFolder
- Webdav: fixed broken MOVE and COPY commands
- Updated DTMLMethod validation support patch with version
by Steve Alexander
- <dtml-var "..." fmt="structured-text"> did not work
properly under some acquisition related reaons.
- pre-2.5 installation could not properly migrated to 2.5 because
of changes in the Splitter API
- ZODB conflict errors were logged at a severity that caused
tracebacks to be logged to the stupid log file "out of the box".
Because conflict errors happen under normal operations, and
their appearance in the log frequently alarms folks, typical conflict
error logging verbiage has been reduced, and traceback logging
has been changed to happen only at BLATHER log level, which
means that conflict tracebacks will only be logged if
STUPID_LOG_SEVERITY is set to -100 or lower.
Zope 2.5 Alpha 2
Bugs Fixed
- New accelerated security management bugfix in App/Manager.py,
changing calling sequence to positional parameters.
- STXNG: re-enabled inner now work also through DTML
and not only when using STXNG standalone
- STXNG: generated HTML is now more HTML4/XHTML compliant
(quoted attributes, inner links)
Zope 2.5 Alpha 1
Features Added
- re-enabled inner links for STXNG documents.
- Zope installations upgraded from pre-2.4 installations
did not show the WebDAV LockManager entry in the control panel.
- "requestprofiler.py" script in utilities now does better analysis,
including:
"active" in detailed output is now slightly more meaningful.
It is > 0 only if other requests started after it started
but before it finished. The greater the active count, the
more likely it is that something was going on at the time
in which the request ran that caused a slowdown.
Multiple files may be analyzed at the same time.
Also, script recognizes "U" opcode in big M logs as meaning a restart.
- Added a "preview" field to the edit form for Image
objects. This provides a preview of the actual image data on
the form to make it easier to know what you are working
on. The preview image is scaled if necessary to be useful
without being obtrusive.
- Added the ability to edit File object content in a
textarea. If the content of a File is a text type and the size
is less than 64K (the max size for text area data in some Web
browsers), then you can edit the content as you would a DTML
or other text-based object.
- New user management API for user folder objects was implemented.
As of Zope 2.5, manage_addUser, manage_editUser and manage_delUsers
form the official API for user management. The old grotesque way of
using manage_users is now deprecated.
The default implementation of these API methods simply call the
_doXXX versions of the methods that user folder authors have already
implemented, which means that these APIs will work for current user
folder implementations without any action on the part of the author.
User folder authors that implement the new manage_XXX API can get
rid of the old _doXXX versions of the methods, which are no longer
required (we only use them if the new api is not directly implemented).
API documentation for the User Folder API was also added to
the help system.
- Python compiler in RestrictedPython brought in sync with
main distribution. Made to be compatible with Python 2.2.
- Added links in the "debugging information" control panel
for viewing the contents of the ZODB cache.
- Added user password encryption capability, fulfilling the
needs described in the proposal at:
http://dev.zope.org/Wikis/DevSite/Proposals/EncryptedUserfolderPasswords
There is now a "properties" tab in user folders where you
can select whether passwords are stored encrypted.
- Locale support in STXNG has been broken (since 2.4.0)
- Added SOFTWARE_HOME, INSTANCE_HOME, and CLIENT_HOME to the
control panel to make it easer to tell what configuration of
Zope is running.
- Re-applied Medusa patch to allow proxy-like HTTP requests
(GET http://hostname:port/ HTTP/1.0)
- Objects indexed by the PathIndex can now provide a hook or an
attribute with the same name as the index name to provide
a customized path information other than using getPhysicalPath().
- Selecting "Clear Catalog" from the ZCatalog "Advanced" did not clear
the vocabulary associated with a TextIndex.
- Added updated and enhanced testsuite for STXNG.
- added getEntryForObject() for PathIndexes. Reworked PathIndex's
internal inverse index.
- API help topics can now document functions as well as classes.
- Security accelerations in c
- Accelerated C Document Template handling; Document Templates
can now do additional rendering in C, improving performance.
- Unicode support for ZCatalog:
- added new UnicodeSplitter
- ZCatalog now allows unicode strings as attributes
of objects to be indexed using a TextIndex
(see lib/python/ZCatalog/README.txt)
Bugs fixed
- WebDAV: Zope escaped nested object properties derived from
internal dav__* functions in PropertySheets.py although they
are considered to be safe and do not need any escaping. This
caused Zope to be completely incomplete with Windows XP. Fixed !
- WebDAV: '(' and ')' are now allowed in Ids for Zope objects.
This is needed when one tries to duplicate files using cut&paste
through Microsoft webfolders.
- Collector #2532: ZCatalog.availableSplitters is now protected
by security mechanism.
- Collector #2412: a read-only FileStorage has not been closed
properly.
- Collector #2390: Objects of type 'Help Image' were not properly
re-registered inside registerHelp().
- Fixed broken FTP download for larger files.
- Collector # 2396: StructuredText did not allow URLs containing "%"
- Collector # 2397: StructuredText could not handle underlined text
properly. Also <dtml-var stxdoc fmt="structured-text"> will no longer
produce <html>..<body> and </body>..</html>
- Collector #2438: Using a slice operation like [30:] on a
ZCatalog search result caused a MemoryError because
the __getslice__ implementation used range() instead
of xrange().
- Collector #2423: Searching a FieldIndexes for documents
with a blank string has been broken.
- WebDAV Lockmanager was not working due to a Python 2.1
incompatibility.
- Collector #2482: A COPY operation through WebDAV on a locked
resource left the destination resource in a locked state
so any WebDAV client was unable to unlock the destination
object. Locks are now cleared from the destination object.
- Error message AttributeError/_v_blocks when a DTMLfile is
not present or could not be read replaced by a more
informative message.
- Collector #2497: SERVER_PROTOCOL variable is now compliant
with the CGI specification and looks like "HTTP/1.1" instead
of "1.1"
- Creation of a TextIndex ignored the vocabulary setting.
- Fixed broken aquisition of vocabularies from a Catalog
by a TextIndex.
- Collector #2504: level parameter has not been passed to HTMLClass
constructor
- default for 'orphan' attribute of <dtml-in> is now 0 instead 3.
- Fixed conflict resolution problem in BTrees (BTreeTemplace/
_p_resolveConflict)
- Fixed many subtle bugs in the BTrees, including some that
could silently corrupt the BTree and render some data
inaccessible.
- Collector #2524: Medusa sent "HTTP/None..." as response header when
then HTTP version could not be determined from the HTTP request.
Now sending "HTTP/1.0..."
- queries for the PathIndex can now specified as tuple (path,level).
the level parameter inside a query overrides the optional
'level' parameter for a complete search request.
- Collector #2561: XXBucket.values() returned keys instead of values
- Fixed the API docs for user objects.
- Fixed bad interaction between ZCatalog and dtml-in (submitted by
Steve Alexander)
- Multiple links in a paragraph with mixed link notation
(quotation+colon+URL or quotation+comma+whitespace+URL) did not
work properly (thanks to Alastair Burt for reporting and submitting
the patch).
- Fixed case where DTMLMethod.py complained when it tried to remove
the accelerated DTML security validation routine after recursive
entry.
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