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Zope history This file contains change information for previous versions of Zope. Change information for the current release can be found in the file CHANGES.txt. Zope 2.2.2 Bugs Fixed - Applied Dieter Maurers patch to prevent log entries from being dropped when clients disconnect prematurely. - The manage_test method of database connection objects were not checking for RDB-format results, which caused the test queries to fail from the test tab of some older DAs. - Z2.py did not allow passing numeric UIDs for the -u option. - Fixed a bug in the dtml-var tag handling of the 'null' attribute. Before null would only work correctly if there was also a 'fmt' attribute. Now null correctly works with non-zero false values when there isn't a 'fmt' option. - Corrected a factory bug that prevented creation of ZClass instances within objects owned by users defined in a different user folder than the root acl_users. - Made ZopeAttributionButton method of Application object public. - Factory dispatchers inappropriately acquired ownership in certain cases, causing problems creating objects for users not defined in the root user folder. - The DestinationURL method of FactoryDispatchers did not work correctly if the dispatcher was obtained through the unrestrictedTraverse method. - Several calls to socket.bind() were fixed for Python 1.6/2.0 compatibility in PCGI and Gadfly. - The sqlvar tag could fail on the trailing 'L' of the string representation of longs when coercing to int or float. - Under some circumstances, versions were only partially committed (or aborted) in FileStorages causing objects to be left locked in a version with no way to unlock them. - FileStorages opened read-only incorrectly truncated data files when incomplete transactions were discovered. - Read transactions were aborted due to conflict errors. This was an attempt to catch write conflicts early, but was far too pessimistic. - The document_src method of DTML objects required a REQUEST and RESPONSE argument, making it difficult to use from Python code. They are now optional. - The "test" tab of SQL Methods did not include the rendered query in the error message if the test failed due to a database-level error (such as a malformed query). - A signed/unsigned buglet in the code for Splitter objects caused recognition of national characters to fail on some platforms (FreeBSD/x86). - A bug in ZODB database objects could cause ZEO clients to fail to start without deleting the ZEO client cache. - The 'lock' keyword argument to RESPONSE.redirect was not in the API documentation. - Some missing SCRIPT_NAME variables were added to the IMG SRC paths for the navigator pane. Zope 2.2.1 Bugs Fixed - Correction of ZClass-in-ZClass bugfix which prevented import of .zexp's containing Factories. - Made acquisition in the URL and XML-RPC work together. - A bug in FTP downloading was fixed. - A bug in the "views" screen for ZClasses could cause strange IndexErrors depending upon whether help topics were created. - Improved behavior when non-persistent objects are added to an ObjectManager. - Fixed an obscure bug that could cause Zope to crash when there were errors in computed attributes that depended on acquisition. - Fixed very obscure bug in database invalidation when committing from one version to another. This could cause source version data to fail to get updated. - Fixed a condition that prevented error messages from being displayed when performing a redirect. This means that standard_error_message documents that redirect now need to add a "lock=1" argument to the redirect call. - A bug in the stupid file logger consumed exception info for certain types of errors (such as failed product import). - A bug in integration with the new security machinery caused copy / paste operations to fail in certain cases. - Changed permission assignments for 'manage_editForm', 'manage', 'manage_main', 'manage_uploadForm', 'manage_historyCopy', 'manage_beforeHistoryCopy' and 'manage_afterHistoryCopy' to 'Change DTML Documents' (for DTML Documents) and 'Change DTML Methods' (for DTML Methods) which is more correct and makes view filtering work properly. - The medusa code that produced the server log file was writing the formatting the date in GMT but adding a local timezone identifier (+0100, etc.) It has been fixed to format the date using localtime. - The DTML "tree" tag did not understand the common shorthand spellings for name= and expr=. - The HTML4 formatting method on DateTime objects did not return the datetime in UTC as it was supposed to. - A bug in cgi.py caused an entire extra copy of large file uploads and input data to be kept in memory, defeating the work the module does to avoid doing exactly that ;^) - A bug in the cgi module could cause memory to spike on large inputs, as it kept a complete copy of the input in memory that was never used :( - A packing bug could cause data written by saved versions to be inaccessible. This is actually a bug that was fixed in Zope 2.1, but the fix never got applied to the main code tree. :( - The behavior of the tag and __str__ methods of images has changed slightly; if no 'alt' argument is given, it will use the title of the image (if defined) for the alt attribute. Otherwise it will generate 'alt=""'. Also, it now generates 'border="0"' unless a different value for border is given as a keyword argument. - The database control screen in the control panel did not work with storages that returned string "sizes". Some storages return strings to indicate units other than bytes. - Fixed the broken Product Help icon. - Fixed ZClass view help setting, thanks to Jeff Sasmor. Zope 2.2.1 beta 1 Bugs Fixed - FileStorage-based databases became corrupted when their size grew beyond 2GB. - FileStorage-based databases could be corrupted if transaction descriptions or transaction extended meta-data exceeded 64KB in size. - Some relational database adapters use an older version of a results class in Shared.DC.ZRDB. The RDB-format based results class was missing a needed security assertion to allow access to result data. - Missing security assertions in the ZDOM module caused unauthorized errors for things trying to use ZDOM (such as XMLDocument). - A bug in the registration of help content caused unnecessary transactions to be written at startup. - The machinery for guessing content types ignored default values passed in explicitly. - A problem in the Find machinery removed the acquisition context from subobjects, causing permission checking to fail. - There was a hard-coded unix path separator in the logic for initializing special dtml objects from files. - The ordering of tabs on some management screens was changed inadvertantly during the 2.2 development cycle. The ordering has been tweaked to conform more closely to earlier releases. - The strftime() method of DateTime objects was changed so that it formats based on the current timezone representation of a given DateTime object. This is now also the case when formatting DateTimes from DTML using the fmt="..." construct (which uses the strftime method under the hood). Previously, strftime converted to GMT, which was inconsistent with other formatting methods and caused problems for people. Those who actually do want the date to be formatted in GMT can use: myDate.toZone('GMT') to get a version of the object represented in GMT and then call the formatting methods on that object. - Permissions were not properly defined for the new history vew in DTMLMethods and DTMLDocuments. This caused many useful features to be available only to managers and others to be available only to those with undo priveledges. A new permission, "View History" has been added for viewing historical changes and you can copy historical versions to the present if yo can edit DTMLDocuments or DTMLMethods. - The new traversal method, restrictedTraverse was private, but should have been public. It also didn't check access to the root object when an absolute path was used. - The roles (and only the roles) "Manager" and "Anonymous" had the "Access contents information" permission on the root application object regardless of permission settings made through the management interface. - A ZCatalog bug which was symptomized by a "KeyError" during a searchResults query was squished by changing some exception handling in the cataloging machinery. - Version's chose their names based on absolute_url, which depends on access method, rather than physical path. - A fix for socket.connect() calls in preparation for Python 2.0 was accidentally applied to a wrong part of Client.py in ZPublisher. - The "distribution" tab for ZClass-based products has been changed to allow creation of redistributable products. - DAV property sheets were not correctly associated with permissions, which cause Unauthorized errors when iterating over propertysheets under the new security model. - Some patches to PCGI added in the 2.2 development cycle to support things like syslog connectivity were backed out due to problems on certain platforms. The patches may make it back in the future after the issues are resolved and broader platform testing can be done. - The new security machinery did not allow REQUEST to be accessed when it was acquired. This didn't prevent access to REQUEST, but made the access eccessively expensive. - Fixed the display order of the Zope tutorial topics. - Fixed the help system menu frame to not use standard html header and footer. - Products that have not been updated to define an 'initialize' method to do product initialization were not filtered correctly by permission in the filtered object add list. - Exception logging was added to catalog to catch "shouldnt happen" sorts of events. - Text indexes did not recognize boolean connectives (and, not) if they were mixed-case. - Fixed Tutorial bug that caused win98 to crash with adding a tutorial. - Fixed ZService.py to avoid overwriting existing service start parameters at install time on win32. - The deprecated alias getSize() was added back to Image and DTML objects (existing products still depend on it). - Cleaned up a DocumentTemplate namespace issue. Fixed QuickStart. - Removed old validation code in cDocumentTemplate. - In ZCatalog, it was possible for stemming on single-word search queries to be handled incorrectly and produce no results. - A problem in the url traversal machinery caused strange errors in cases where the root of the site was requested but had no index_html instead of the expected Not Found error. - ZCatalog objects did not implement the searchable object interface correctly. - XML (database) import sometimes failed, especially with ZClass instances. - XML (database) export didn't properly handle strings that contained the string "\n". - The <base> tag insertion machinery failed if the request result had content-type with a charset attribute (thanks to Dieter Maurer). - A long-standing bug that caused a "resource not found" error when trying to instantiate a ZClass inside of another ZClass was fixed. Hooray for Chris McDonough :^) - In certain circumstances it was possible for the manage_afterAdd and other manage_after* methods to get into an infinite loop by essentially acquiring themselves in cases where subobjects did not implement those protocols. - The sqlvar tag produced misleading error messages when an expression caused an exception during rendering. - RFC1123 dates were not formatted correctly in the webdav.client implementation. - Made the ObjectManager class inherit from Traversable (which exposes unrestrictedTraverse). ObjectManager-type items which didn't inherit from SimpleItem.Item had problems with Management.Tabs producing the right views for manage_options before this was in there. - FileStorage-based databases got into an unusable state if available disk space was exceeded. This problem could lead to database corruption. Zope 2.2.0 Bugs Fixed - The add form for MailHost objects described fields that are no longer needed (descriptions have been removed). - User databases did not correctly handle situations where a browser sends an authentication token naming a user that can't be found while accessing a publicly available resource. - Minor bug in ZCatalog which prevented deletion of indexes fixed. - XML-RPC requests could not be completed via https. - Several uses of multi-argument append() calls (that will be illegal in Python 2.0) were fixed. - The UNLOCK method for DAV support was missing some needed argument declarations. - Corrected some error handling in the database connection code. - Fixed support for strftime day-of-week formatting in DateTime. - Fixed Image content-type detection to also use the binary "nonces" in the file to determine the real content-type. This should catch GIF/JPEG/PNGs that are uploaded without the correct information associated with them. - Added missing permission declarations to make the methods of PropertySheets objects accessible. Zope 2.2.0 beta 4 Bugs Fixed - The History tab is now protected by the 'Undo changes' permission, and setting this permission actually has effect now. - A bug in validation in filtered_manage_tabs made tabs misbehave in some cases. - Fix an AttributeError bug in the Lexicon objects used by ZCatalog. - FileUpload objects did not have the required security assertion to allow access to attributes such as filename and headers. - Broken objects weren't deletable due to a recent change in the object deletion logic added to support mountable databases. - Some formatting bugs in the status method of the ZServer HTTP server were fixed (thanks to Jeff Rush). - The _read_data method of Image and File objects didn't correctly handle being passed an actual file object. - A new behavior in 2.2 is that after calling REQUEST.redirect the HTTP status can no longer be changed. This caused problems for some people who were calling redirect() and then trying to set the HTTP status to 301 Moved Permanantly instead of the default 302 Moved Temporarily status. To make this possible, a new optional 'status' argument is now recognized by the redirect method so that RESPONSE.redirect('/foo', status=301) can be used - Corrected the text of some kinds of 'unauthorized' error messages. - Fixed a bug that caused dtml-try to throw a KeyError. Related to the recent changes made to DT_Util.namespace(). - Packing to a time earlier that a previous pack could lead to serious data lossage. - Attempts to install product information into the Zope database on startup made no sense and could cause problems for ZEO clients. Product adtabase updates are suppressed when the ZEO_CLIENT environment variable is set. - A missing security assertion made DTML code that tried to create instances using manage_addProduct['foo'] constructs fail. - Fixed a couple typos in the Tutorial thanks to Alastair Burt. - Fixed a Javascript error in the Tutorial thanks to Luke Tymowski. - Revised online help content quite a bit. - Revised API docs quite a bit. - Fixed a bug in Logging docs thanks to Andy McKay. - Added code that will reveal bugs in calls to DT_Util.namespace(). - The way that the values of selection and multiple selection properties were looked up on the properties form was changed so that the values can now be either properties on the same object or found through the DTML '_' namespace to support situations where the selection value is acquired or otherwise not findable in the object's properties. - The If-Modified-Since handling in Image and File objects did not gracefully handle malformed date strings in that header (which seem to be sent by certain proxy servers). Malformed date strings are now ignored as if the header was not present rather than raising an error. - Corrected a recent problem with boolean properties. - Permissions were not being set properly on factory methods (constructors) loaded from Python (disk) products. This bug existed in 2.1, but was not very visible until recent fixes were made to the security machinery. - The ownership management code incorrectly was willing to delete ownership information in the class rather than only in object instances. - A bug that made packing always complain that you were trying to pack to an earlier time than a previous pack was fixed. - The security context stack wasn't handled correctly for DTMLDocuments. - DateTime objects did not support GMT(+/-)xx30 timezones. Zope 2.2.0 beta 3 Bugs Fixed - Handling of "broken" products was, er, broken :) This is why some folks reported seeing objects "spontaneously change into Folders". In reality, the Broken objects that should have been created in place of objects whose Product was missing or broken weren't behaving correctly due to an interaction with the new overridable __getattr__ support in cPersistence. - FTP support was broken for Folders containing Broken objects. - ZServer returned None as the HTTP version if no version was given in the HTTP request. - It was possible to rename or move Versions, which was plain bad. - A bug that caused SQLMethods to have problems unpickling was fixed. This bug also made it impossible to add Zope Tutorial instances. - A bug in the lookup order for Product extensions was fixed. - Fixed the tutorial to ensure that a gadfly directory has been created before attempting to import the tutorial info. Zope 2.2.0 beta 2 Bugs Fixed - Fixed Tutorial bug that caused win98 to crash with adding a tutorial. - Fixed ZService.py to avoid overwriting existing service start parameters at install time on win32. - The deprecated alias getSize() was added back to Image and DTML objects (existing products still depend on it). - The "Host" headers sent by ZPublisher/Client.py did not include the port number if given. - Cleaned up a DocumentTemplate namespace issue. Fixed QuickStart. - Removed old validation code in cDocumentTemplate. - Added checks to only allow legal Python name characters in ZClass ids. - Selection and multiple selection properties were displayed incorrectly on ZClass propertysheet forms. - getPropertyType was not supported for PropertySheet objects. It appeared to work but always returned None because it was being acquired :) - The 'send' method of MailHost objects was broken if explicit to, from or subject arguments were given. - The constructor for MailHost objects was changed to have a non- backward compatible signature in the alpha period. The 'localhost' and 'timeout' arguments were added back to the MailHost constructor for backward code compatibility for 2.2 beta 2 (though these args are now effectively ignored). - An insufficiently protected method deep in DocumentTemplate was fixed to prevent a security issue that could allow unauthorized changes to the sources of DTML objects. - Insertion of the BASE tag in responses violated the HTML 4 spec, which states that BASE must come first in the <head> element of a document so that relative references thereafter will work. It now conforms to the spec. - A bug in the SendMail tag if an existing mailhost was named has been fixed. - New and improved content has been added to the help system. - Some problems with certain management screens having wrong help or no help have been fixed. - A bug in PropertyManager allowed properties defined in products as read-only to be changed. - Added an entry in the content_types registry for RealAudio file extensions. - At some point z2.py stopped accepting "-P 0" as a valid option. That has been fixed. - Fixed a bug that caused instances of ZClasses which use DTMLMethod as a base class to have an ID of "<string>". Unfortunately, existing instances will still have the wrong ID. The effect is it's not possible to use the clipboard on them. They will need to be re-created. - Fixed a bug in PermissionMapping that could in a certain case cause determination of whether an object is a ZClass instance method to throw an exception. - A few tweaks were needed to the way that SQLMethods made use of the new security machinery. This fixes the authorization problems some users were seeing when calling SQLMethods from inside of other SQLMethods. - Medusa did not handle absolute URLs given in HTTP commands quite correctly. It turns out that WebTV (and possibly others) send such commands, and the HTTP spec allows them, so we now support it. Zope 2.2.0 beta 1 Features Changed - Split the old CHANGES.txt into two files. CHANGES.txt will now contain only change information for the current Zope release. Change information for older versions is now in the file HISTORY.txt. - Added basic internal support for mountable databases. A separate product will still be required to make use of this ability. - Added a new "history" tab to selected objects (DTML methods and documents for now) that provides access to previous versions through the web. - The property management screens now include the types for existing properties. - Added support at Python level for user-defined __get/set/delattr__ methods on persistent objects. These have essentially the same semantics as for Python, except that overridden __set/delattr__ methods must explicitly signal changes that should be persistent. - Better error messages and syslog capabilities were added to pcgi-wrapper (thanks to Jeff Rush). - Calls to the ZLogger system were added to the user authentication process to help sys admins diagnose login problems (thanks again to Jeff Rush). - The Undo view shows *only* transactions performed in the place where undo was performed. (As before, it also shows only transactions performed by users defined in the place where the undo user is defined.) - The way that transaction logging is done was changed to make transaction logs based on "physical" object and user paths. This was necessary to make undo work properly in the presense of virtual hosts. - A number of hooks have been added and changes made to support products that implement virtual hosts. Keep an eye on http://www.zope.org/Members/michel/Projects/Interfaces/ImplementingVirtualHosts - The distributions now have an Extensions directory by default. Bugs Fixed - Added type checking to the constructor and edit methods of builtin Zope object types to prevent inappropriate passing of acquisition-wrapped objects for standard attributes (like title, etc.). A similar restriction was added to prevent the adding of wrapped objects as properties. - Fixed a naming bug in MailHost that caused simple_send to fail. - Fixed a buglet in the rename form that caused the form to submit to the old manage_renameObject if the user just hit the enter key in the browser on a single item rename. - A bug that caused the tabs to disappear after performing cache management operations was fixed. - A problem that prevented multiple Zope instances from running at the same time on win32 was fixed. - An algorithm in medusa's max_sockets.py code was updated to improve startup time on certain platforms. - The behavior of manage_editProperties on PropertyManagers and PropertySheets has been fixed so that existing properties that are not found in the update request are not reset to empty values. - A problem that disallowed access to the individual records in a result set from a SQL method was fixed. - A problem that caused the query template for an SQL method to be rendered twice when used from the "test" tab has been fixed. - Fix for bug #1270: Netscape Image Problems. Added casts to long to avoid an overflow error caused when trying to convert dates sent by certain versions of Netscape in the If-Modified-Since header. - Corrected DateTime.py to recognize years specified as 00 through 69 as 2000 through 2069. - A bug that made objects named in dtml namespaces always fail security validation was fixed. This was noticed by folks trying to use manage_tabs from ZClasses who hit the bug because the manage_tags document uses a namespace: <dtml-with "_(manage_options=..."> - A change to pcgi_publisher was made to support FreeBSD, where send() will send only 8192 bytes at a time. - A bug that broke import in the alpha was fixed. - A bug in the transaction handling logic could cause infinite loops if objects were registered incorrectly. - A bug in the transaction machinery could cause objects to be aborted multiple times if errors occurred. - Logging via syslog now correctly captures the process id. - Adding User Folders and MailHosts from the management screens didn't redirect to the correct URL after adding the object. - A form problem that prevented joining or leaving versions has been fixed. - A more reasonable default content type is now used for HEAD requests on DTML objects if the object does not have a content_type attribute or a file-extension-like id that can be used to determine content type. - HTTP HEAD handling was inconsistent for collections, depending on whether the "default document" (index_html) was acquired or not. Zope 2.2.0 alpha 1 Features Changed - Added a new security policy architecture and object ownership to address the server side trojan issue. The new architecture cleaned up various places where Zope code did authorization checks. A side effect of the new policy is that it is a bit more strict than it used to be - objects without explicit protection to which access was previously allowed will now be denied. There is a new declarative method for providing access to such objects, which has been applied to certain previously unprotected Zope objects that DTML writers are accustomed to having access to. See the SecurityPolicy wiki pages on Zope.org for further information. - Added a new online help system. Help is now available for standard Zope objects. Zope developers can add help for their Python Products and Control Panel Products. See HELPSYS.txt - Added logic to increase the Python interpreter "check interval" that should provide at least a 20% performance improvement for most Zope sites. Also added a new -i option to z2.py so that Zope users can pass in alternate values (the default is 120) for the check interval. This lets users experiment and tune the interval for the best results in their particular system environments. - The message returned when an empty result set is returned from a ZSQL Method has been clarified. - In the load_site utility: o Added logic to try and figure out a path to ZPublisher if one was not provided. o Added an option, -I, to automatically add an index_html method that redirects to index.html or index.htm. - Record objects returned by ':record' form-marshalling tag have been enhanced to act like mapping objects. - The ZServer startup script, z2.py, now allows all servers to be disabled with a single option, - The ZServer startup script, z2.py, now allows all multiple HTTP, FTP, or monitor servers to be run. - The ZServer startup script, z2.py, now allows separate IP addresses to be specified for each HTTP, FTP, or monitor server. - Added 'urlparam' attribute to tree tag to allow propagation of extra parameters through tree URL's (Collector #1045). - When renaming objects, the old id is provided as the default value for the new id. - Allow non-sliceable keys in PersistentMappings (Collector #1064). - Use smtplib in implementing MailHost/sendmail (Collector #1005). - Allow call to get() w/o explicit default in PersistentMapping (Collector #1182). - Allow rename of multiple items (Collector #1065). - Allow expr syntax in <dtml-mime/boundary> for type, disposition, encode, name, filename; add skip_expr (Collector #892). Bugs Fixed - Fixed problem with extra PermissionMapping objects being in the aq_parents hierarchy during traversal when a method was being accessed a ZClass defined instance method. - Fixed ZCatalog 'Find to ZCatalog' with expressions problem. - Fixed broken links in ZCatalog 'Cataloged objects' view. - FTP directory listings were not sorted. - Improved FCGI support in ZServer. - Improved ZServer streaming, including fixing chunking and keep-alive support. Chunking is now done by default with HTTP 1.1 clients. Fixed possible problems with large responses. Thanks to Toby Dickenson. - ZServer's FTP server no longer binds to all interfaces. - Fixed a bug which caused File objects of type 'text/html' be have the wrong Content-Length set. - A bug in SQL methods could caused results to be returned without an acquisition context. This could cause methods provided via ZClass brains to be inaccessable due to the dependence of ZClass method security on a correct acquisition environment. - Fixed tree tag so that expand_all and branches_expr play nice (Collector #919). - Suppressed "private" names from catalog indexes/meta-data (Collector #1076). - Allowed strings with linebreaks as data in Gadfly queries (Collector #972). - Added note to WEBSERVER.txt pointing out security issues with REMOTE_USER mode (Collector #733). - Fixed colspan counting in tree tag (Collector #913). - Logging enabled with the -D option to the z2.py script did not include traceback information and was not performed during Zope startup. This made finding startup errors difficult. - The logic for reparsing the dtml files used for the Zope management screens while in development mode was broken - it was reparsing system dtml files on every request. - Correct DateTime docstring to remove spurious 'negative offset' language (Collector #1074). - Clean up pointer cast to suppress compiler warning in zlib.c (Collector #1190). - Guarantee null-terminated buffer in Record_init() so Record_compare() doesn't UMR (Collector #1012). - Clean up use of PData for large images (Collector #1061). - Fix overflow exception in statistics of <dtml-in> (Collector #1089). - Check for invalid characters in whole id, not just first character (Collector #1131). - Prevent unintentional exceptions from blocking manage_beforeDelete; added OFS.ObjectManager.BeforeDeleteException to allow an object to veto its deletion (Collector #1183). Zope 2.1.6 Bugs Fixed - Some bits from the 2.2 line inadvertantly got into the ZRDB package during the SQL Methods update which caused errors for certain database adapters. - A fix to the logic in Acquisition for aq_acquire caused a bug in the handling of inner ZClasses. Zope 2.1.5 Bugs Fixed - Fixed a problem with the permission declarations for the Image and File classes. The problem made it impossible to change the 'View' permission for File objects. - Added logic to setgid() to the user's primary group if z2.py is run by root. - Fixed a bug in TimeStamp objects that produced a wrong date/time representation for bobobase_modification_time. - Changed _checkId in ObjectManager to disallow REQUEST as an object id. - Fixed a bug that could allow someone with a lot of Zope zen to change the apparent AUTHENTICATED_USER to access things that they shouldn't. - Fixed a bug in ZServer that could cause server hangs under certain heavy load conditions. - Fixed a remaining '.' form target that we missed in the Zope rename form. This caused rename to fail for Zope installations running behind Netscape servers. - Fixed a potential buffer bug in PCGI reported by Larry Luther. - In the load_site utility, binary files were misshandled on windows. - Fixed manage_renameObject to be willing to get the REQUEST via acquisition, making it easier to use from DTML. - Changed the expireCookie method of FTPResponse to fail gracefully when attempting to delete a cookie that does not exist. - Fixed a bug that caused a traceback when all members of a multiple select property were deselected. - The _validTime method of DateTime objects rejected time values with fractional seconds between 59 and 60 (which caused problems with some database date conversions). - Changed id checking logic to disallow '/' in an object id. - Structured Text had problems with '~' characters in URLs. - Fixed a potential security hole that could allow users with permission to add Folders and edit DTML (and a who have a lot of Zope zen) to get access to things that they shouldn't. - The internal templates used by SQL methods weren't correctly applying the same access control constraints as standard DTML objects. - Fixed ZopeAttributionButton to open in the top-level of the web browser. - Fixed a problem with using the "scale" arguments to the tag method of Image objects. - Fixed a problem in the Acquisition module that could cause objects accessed via aq_acquire to not be wrapped correctly. - Fixed If-Modified-Since header handling for Images and Files. Zope 2.1.4 Bugs Fixed - Removed the "feature" that allowed the REQUEST object to be traversed through the web. While useful for debugging, this could be a security issue. Zope 2.1.3 Bugs Fixed - A race condition in the logic for managing Zope database connections caused Zope to hang on very busy sites. - A bug in the packing code that caused records to be nreadable after: o someone did work in a version o Someone did an (unrelated) undo o the version was committed and the database was packed to a time before the work was done in the version. - Fixed a bug that caused packing to raise an error in the following situation: o someone modifies and then deletes an object in a version. o they commit the version o the database is packed between the time the object is deleted and the time the version is committed. - Fixed a bug that caused Zope to sometimes hang instead of shutting down or restarting when accessed over a fast network. - It wasn't possible to use a ZClass instance as a method of a ZClass. Zope 2.1.2 Bugs Fixed - Thanks to Kevin Littlejohn's sleuthing, a sizable problem in the security machinery in DTML has been brought to our attention and resolved. The problem is most acute in situations where untrusted people can edit DTML documents or methods. Zope 2.1.1 Bugs Fixed - Conflict errors (multiple threads trying to modify the same object) were not handled correctly for requests with bodies (e.g. POST requests). - ZODB FileStorage index files could become out of date after an undo. This could lead to strange results and apparent database corruption if Zope was shut down ungracefully and restarted. Now index files are removed when undoing records. - Saving or discarding versions failed if a transaction that added a new object in the version was undone. - There was circumstantial evidence that a failure of an OS to correctly delay writing to data to disk after Zope had written it led to a corrupted database. Zope now makes an 'fsync' system call (where available on Unix systems) to force data to be written to phusical storage when transactions are committed. - Some applicataions were writing empty transactions. The FileStorage now checks for and avoids writing empty transactions in this case. - Multiple-selection properties didn't work in regular property views, even though they did work in ZClass property sheets. - The Win32 WISE installer did not create a default Zope.cgi PCGI resource file. - The Win32 WISE installer script is now included in the /inst directory of win32 installations by popular demand. - An import problem caused the name "BTree" to be incorrectly overwritten in TextIndex.py and UnTextIndex.py in the SearchIndex package, which caused problems for some third- party product authors. - There were a number of problems with the load-site utility (utilities/load_site.py): o A recent change caused HTML files to have their headers and footers replaced with var tags for standard headers and footers. While this is sometimes very useful, it is sometimes disastrous. This feature is now enabled with the -D option. o Handling of files with a '.dtml' extension was broken. These are now handled correctly. Files with '.dtml' suffixes now get uploaded as methods. o A workaround for old sites that had a bug in Document (aka DTMLMethod) upload has been disabled. This workaround is now enabled when the -9 option is used. The following bug fixes were accidentially excluded from 2.1.0: - Redefining the "views" on a ZClass could incorrectly affect the views available on instances of base classes of the ZClass. - The new 'url' option to DTML 'var' tags did not work properly for DTML and other callable objects. Zope 2.1.0 Features Changed - Enabled preliminary support for FastCGI to ZServer. This allows Zope to communicate with web servers that support FastCGI. Use z2.py's -F switch to configure FastCGI support in ZServer. See WEBSERVER.txt for more information. Bugs Fixed - Redefining the "views" on a ZClass could incorrectly affect the views available on instances of base classes of the ZClass. - The new 'url' option to DTML 'var' tags did not work properly for DTML and other callable objects. Zope 2.1.0 beta 2 Features Added - Added Oleg Broytmann's patches to utilities/load_site.py that provide automatic parsing of title and property information and inclusion of std headers and footers. - Added Martijn Pieters' patches to DT_Try.py to implement try/except/else and try/finally constructs. - Virtual Hosting and SiteObjects. Virtual Hosting allows a server that can multi-host, like Apache, to serve different hosts from different Zope folders. 'SiteObjects' act as a placeholder for a virtualhost. Bugs Fixed - Some problems with the product distribution machinery that prevented product distributions from installing correctly have been fixed. - Description lines on the Undo screen were not HTML quoted, which could cause problems rendering the Undo log if any of the descriptions contained stray HTML tags. - Bugs in the way that ZClass instances were pickled have been fixed. - Some long-standing indentation problems with the tree tag have been fixed. - The Zope database lock file was not properly closed. - Linux and Solaris binary distributions did not contain the python _locale module required for locale support. Zope 2.1.0 beta 1 Features Added - The ZCatalog now supports relevance ranking. Instead of search results being returned in an essentially random order, results are now sorted by 'score'. For text indexes, the score is the number of occurrences of the search term in a document. The score can be accessed by an attribute on Catalog results 'data_record_score_' and 'data_record_normalized_score_' contain the score and normalized score for the result object. - Added Keyword Indexes to the Catalog. Keyword indexes allow you to index a sequence of 'keywords' as an atomic property of an object. This is useful for buiding catagorical hierarchies. - Z SQL Methods arguments list is now a TEXTAREA widget to ease editing long aruments lists. - SQL Database Adapters now have a 'test' tab where arbitrary SQL may be entered and executed immediately through the connection object. DTML is not supported in this tab. - SQL Methods now support an option 'op' parameter on the DTML method <dtml-sqltest> which allows you to choose the operator used for comparison. - WebDAV support has been modified to support MS Office 2000 applications. The changes _emulate_ aspects of DAV level 2 locking but do _not_ provide actual locking support at the present time. - Files and Images now can be served without loading themselves into memory. This is automatically done for large Files and Images. As a by product, RESPONSE.write now works better in ZServer. - Most if not all of the default DTML generated by Zope and its built-in products is now generated in the new <dtml-var ...> syntax. The DTML sources for Zope's built-in management interfaces have also been converted to the new syntax. - DTML entity references can now include dot-separated var tag *options*, as in: '&dtml.url_quote-foo;' - There is a new 'url' option on the DTML var tag that causes absolute_url to be called on the displayed value. This allows entity references like: '&dtml.url-foo;' - There is a new 'url_quote_plus' option on the DTML var tag that acts like the standard url_quote option but uses '+' to encode blank spaces. - There is a new 'missing' option in the DTML var tag that allows you to provide a value to be used if the variable is missing, rather than raising a KeyError. This will work in the entity reference syntax as well. If it is used without an argument, it will provide an empty string. - The DTML built-in function, getattr, now accepts an additional argument providing a default value. - The tag() method of Image objects now support optional 'scale', 'xscale' and 'yscale' arguments that will automatically scale the output height and width tag attributes. - The Products folder in the Control Panel now has an 'Import/Export' tab to allow easier importing and exporting of Control Panel Products. Features Changed - ZCatalog uses subtransactions to keep memory consuption low at the expense of indexing speed. Subtransactions can now be disabled through the management interface for use with non subtransactions compatible objects like ZSQL Methods (or for raw speed if you have lots of RAM). - Added a coptimizations module. The first optimization is to provide an implementation of persistent_id in C. This routine, which is called extremely often while pickling was found to be a significant bottleneck. - More flexible cache management methods were added to ZODB Connection objects so that apps that want to move objects out of memory can force aggressive cache behavior. - Added the beginnings of internationalization support to Zope. The Zope startup script (z2.py) now supports a "-L" option that can be used to pass a locale name (such as "en" or "de") to Zope at startup. If specified, Zope will attempt to set the locale using the locale module if it is available. This change will allow Zope to better handle international characters in a number of places such as searching and indexing. - Logging from ZServer modified to produce Common Log Format in a Combined format, where user-agent and referer are also logged. - xmlrpclib was updated to relect the current version (0.9.8) from Pythonware. - Add button returned to the management interface, although the Javascript auto-select is still in place. This resolves some problems with browsers on certain platforms. - Added small explanation on Image/File add form that if the 'id' is not provided, it will be autogenerated based on the file name. Bugs Fixed - The build procedure for source checkouts now sets the directory structure permissions to something (775) readable by anyone, including, e.g., the web server running under a different user id and group than the installer... - A bug in the DTML tree tag that prevented expand_all from working correctly has been fixed. - ZCatalog now actually saves memory when using subtransactions. Plugged a couple memory leaks doing this. - Added ALT text fixed nested anchor tags produced by the Tree tag to ensure that valid HTML is produced, and fixed the reverse option to the Tree tag. - A bug in FTP cookie authentication was fixed. - Fixed a bug that caused External Methods to be reloaded every time they were used in development mode. - Fixed a permission typo in ZCatalog and a sort_on bug. - Fix for missing REQUEST in a method signature in the CatalogAwareness module. - Changed to propagate errors raised by _begin for thunked database adapters. Also changed completion code to check registered status and avoid completion logic if not registered, which would be the case if _begin failed. - A memory leak in cPersistence has been fixed, and a bug in object deactivation that prevented deactivation of BTrees was fixed. - A problem in BTrees that caused unintended db writes on Catalog searches was fixed. - Some unnecessary debug mode overhead eliminated - external methods are now automatically reloaded only when the .py files are changed. - A thread-safety problem with PCGI handling was fixed. - A bug that caused installation of through-the-web product distributions to fail. - A bug in the handling of long int properties was fixed. - Some bugs in the generation and verification of CRYPT based passwords was fixed. - A bug in the earliestTime method of DateTime objects was fixed. - A bug in determination of the ZServer version string was fixed. - Height and width detection for some PNG images did not work properly. - A bug that caused proxy role machinery to ignore local roles was fixed. - Added a fix for PCGI to make sure binary IO is used on win32. - A javascript fix for IE5 was made for the folder add list. - A bug in sequence multiplication in DTML was fixed. - A ZServer bug that prevented running multiple Zope2 installations on non-posix systems was fixed. - An External Method error handling bug was fixed. - The local 'Owner' role could be overwritten when an object was copied, moved or renamed. - Documented and fixed the creation of 'selection' and 'multiple selection' properties. - SECURITY: Fixed bug that allowed users with local roles gain priviledges on acquired objects. getRolesInContext did not used the correct context, as defined by the inner-most object wrapping. - SECURITY: The permissions for Find support methods were not being properly initialized. - SECURITY: Viewing existing user no long displays current password, only space for putting in the new password. This will be more critical as we move toward fully encrypted passwords. - SECURITY: A bug that prevented setting permissions on External Methods in ZClasses was fixed. Zope 2.0.1 Bugs Fixed - Fixed a bug which allowed unauthorized options to be displayed when adding a Folder. Now you only see options to add an index_document and/or a user folder if you have adequate permissions. Zope 2.0 Features Added - Database conflict errors are now logged. Although conflict errors are normally handled by retrying requests, frequent conflict errors can degrade performance and should be dealt with by redesigning applications. Features Changed - The process id displayed in the control panel now inclused the thread id, in parentheses. - Upload of image or file data *always* used sub-transactions. Unfortunately, database adapters don't support subtransactions. Images and files now use subtransactions only of the image or file is greater than 128K bytes in size. Also, subtransactions are not used if data are uploaded as a string by using the ':string' ZPublisher type in the upload form. More advanced DA's could, and probably should support sub-transactions. Bugs Fixed - Attempting to cut an object then paste it into itself or one of its subobjects would cause a recursion problem. - Certain ZCatalog reindex operations could fail due to an unintended transaction abort. - Database connections were leaked when database conflict errors occurred and handled by reexecuting requests. When 7 connections leaked, the site would accept no more web requests. - The transaction-integration for relational databases didn't work properly. Aborting Zope transactions didn't abort relational database transactions. What's worse, transactions were not committed after a Zope transaction using a relational database was aborted. This explains the reported problems with Gadfly databases and transactions. - Fixed a bug which prevented ZPublisher.Client from uploading files to ZServer. - Added some logic to the win32 binary installer to fix some dll loading problems people were getting on international versions of NT. - Fixed a bug in cDocumentTemplate that could cause AttributeError instances to be leaked in certain situations. - 'reverse' option for the 'in' tag as well as the 'tree' tag has been changed to deal with a copy of the data, rather than the original. The database was being modified in place. The side effect is that in large list situations (with ZCatalog for example), sizable memory usage may result. - Missing values (as returned from SQL methods) were output as empty strings by the DTML var tag, even when a numeric format (e.g. "%5.3f") is used. Using a numeric format with a missing value should generate an error, unless the null attribute is used. Also, the null attribute had no effect when outputing missing values. - It was impossible to map some permissions to themselves, or to other inherited, but not registered permissions in products and in class methods. When this failed, a silly error message ("Waaa" ;) was output. - SQL methods had an unused method, getFindContent allowed anonymous users to read SQL method source. This method was renamed to PrincipiaSearchSource, and protected with a permission. - SQL methods could not be found with the find mechanism by searching their source. - The PrincipiaSearchSource method of DTML documents and methods was not protected, so anonymous users could read their source. - Fixed a bug in ZOM which caused getElementsByTagName to fail when using XML Document. Thanks to Andrew Kuchling. - It was possible to hijak 'self' arguments for DTML and External methods with request variables. This was especially problematic for XML-RPC, which uses positional arguments. - It was difficult or impossible to call External methods with 'self' arguments from XML-RPC. Zope 2.0 beta 6 Features Added - The control panel process id display now also includes the thread id. - The Zope start script, 'start', is now written in a location-independent manner, making it a little easier to move Zope sites around after installation. Features Changed Zope 2.0 introduces a new HTML DTML syntax that, among other things, allows simple 'var' tags to be entered using the entity-reference syntax, as in:: <input name=spam value="&dtml-spam;"> The entity reference syntax is mainly intended for use when a var tag is used to insert text into an HTML tag. In these cases, the text needs to be html-quoted. For this reason, use of the entity reference syntax now implies html quoting. For example, the DTML snippet above is equivalent to:: <input name=spam value="<dtml-var spam html_quote>"> (Note that when inserting text to be used in a URL, as in an A tag HREF attribute, we need to url-quote the text. Zope 2.1 will provide a means to do this with the entity-reference syntax.) Bugs Fixed - Missing values were not formatted correctly with numeric formats and did not work properly with the 'null' attribute of the DTML 'var' tag. - It wasn't possible to map some permissions of objects in Products. For example, it wasn't possible to enable a permission by mapping it to itself. Attempts to do so lead to a rather silly uninformative error message. - When providing default values for input fields, few of the built-in DTML methods used html quoting. This lead to incorrect behavior when default values included markup or quotes. - View filtering failed to show tabs for views in some cases where it should. - Single-character variable names were'nt allowed in the entity-reference DTML syntax. - DTML batch processing didn't work properly. - The DTML functions, '_.getattr', and '_.hasattr' incorrectly acquired attributes even when explicit acquisition was used. - Image dimensions were not autodetected for PNG 1.2 files. - The "View" view didn't display correctly for images with ids with characters that had special meaning in URLs. - The 'optional' attribute in the 'sqltest' tag had no effect. - With browsers (like lynx) that correctly implement RFC 1867 for file-upload support, non-file fields in file-upload requests were treated as file fields. Zope 2.0 beta 5 Features Removed - The help system, which was primarily geared to DTML programmers was removed. Bugs fixed - Database packing failed in certain cases where the data set contained many version commits. - Database packing generated spurious error logs indicating that there were bad references for objects created in ncommitted versions. - A memory leak due to errors in managing request data. - Zope sites became unresponsive (a.k.a. "Hung") due to an error in managing ZODB 3 database connections. - Only the top-level folder's standard_error_message was used. - There were thread-safety and resouce consumption problems in the implementation of thread-safe regex objects. - Fixed bug where ZCatalog's not in the root folder did not recognize the proper URL of objects using the 'Find' machinery. This caused all the objects to mysteriously disapear when you updated the catalog (because their paths were wrong). The Catalog now works correctly anywhere in the object hierarchy. - Fixed a bug that caused error messages to be formatted incorrectly if the standard_html_header did not begin with an HTML tag. - The undo form was accessible even to people who couldn't do undo. This made it look like we were allowing undo in cases where we were'nt supposed to. - The undo form did not restrict undoable transactions to just those transactions performed by users that were authenticated at the same level. This made the new undo less restrictive than the Zope 1 undo. Undo should probably be *more* restrictive, but that will have to wait for 2.1 or later. - Zope crashed under load for applications using ZCatalog due to an ancient bug in handling loading of empty BTrees from the database. This bug has only become effective with ZCatalog. Zope 2.0 beta 4 Features Removed - Draft objects are no longer supported. Features added - The source release install script now checks to make sure that the Python used has thread support. - FileStorages can now habe quotas. Bugs fixed - This release fixes a socket listen-queue depth problem on Win32 systems that caused poor performance and connection refusals in ZServer. - Fixes to the win32 installation were made to prevent a potential conflict on systems that have an existing installation of the Python win32 extensions. - Some of the management views, including the security/permission mapping views were not visible for ExternalMethods. - New SQL methods could bot be created. - New mailhost objects could not be created. - New Draft objects could be created. - Draft objects could not be deleted. - ZClasses could not be added as methods. - Disk full errors could leave the object system in an inconsistent state. The handling of this error was made more robust. Also, when serious errors like this occur late in the transaction commit process, the transaction system switches to read-only mode. The File-storage recovery process needs to change to make disk full errors detectable earlier in the two-phase commit process so that the system can recover without switching to read-only mode. This change, which is expected in 2.1 will also provide better write performance. - Errors during commit of sub-transactions were not handled correctly, leading to inconsistent object data. - Packing not not mark all transactions performed before the pack time as "packed". Undoing these transactions lead to a broken database. - On win9x systems, random data seems to be added to the end of the file on system crashes, causing apparent file corruption. Code has been added to check for this case and recover by truncating the file with a log message. - The Zope version was not shown in the control panel. - The binary release had the PCGI wrapper program in the wrong directory so PCGI installations were not successful. Zope 2.0 beta 3 Features added - Added a 'getobject' method to ZCatalog. This allows you to more easily get at a cataloged object from 'searchResults'. For example::  <br>  Bugs fixed - This release fixes a bug in acquisition that caused creation of ZClass instances to fail under some (common) circumstances. - Copy and Paste validation machinary now takes local roles into account. - ZDOM now adheres more closely to the DOM spec with respect to Document and DOMImplementation nodes. - The main management screen will no longer show the 'Delete' or 'Export' buttons if the user doesn't have adequate permissions to delete or export objects respectively. Zope 2.0 beta 2 Features added - Added a '-r' switch to z2.py for ZServer read-only mode. - The 'null' attribute in the DTML 'var' tag is now used when the value being output if the Python value 'None'. Some people considered this to be a bug. - Permission objects are automatically created for new ZClass objects as part of the ZClass wizard. - For Python programmers, there is a new convenience function for debugging in the Zope package. For example, to debug method spam in the Zope debugger:: python import Zope Zope.debug('spam', d=1) Bugs fixed - Changed the logic used to detect binary content types to only look for control characters. The previous version incorrectly considered certain Latin-1 characters as binary. - The ZService.py used to implement Zope as a Win32 service on NT has been updated to handle a difference in the way .dll files are found on internationalized versions of NT. - The configure.in file used to build PCGI has been updated. - Several fixes to DateTime were added to provide better behavior on machines with unrecognized time zone names. - Conflict errors, which occur when simultaneous writes occur to the same object in multiple database connections, are now handled correctly by re-executing (up to three times) the requests that lost the race condition. - Error formatting with standard_error_message has been moved to the object publisher via a new published module hook, 'zpublisher_exception_hook'. In addition to enabling conflict error handling, this fixed two other bugs: - Error handling in ExternalMethods and in DTML methods or documents called from other DTML documents or methods caused errors to be propagated in ways that defeated use of the try tag and other forms of error handling. - Errors raised before or after calling published objects were not formatted. - Errors in processing form variables, such as missing or miss-typed values resulted in server errors, rather than in formatted error reports. - Database browsing didn't work for ZGadflyDA database adapters. - Transaction meta data were not captured correctly by ZPublisher, which made the undo log look odd wrt the user who performed the transaction. - Permissions for version operations were not set correctly. This made it hard to delegate work to be done in versions and to separate version participation from version finalization. To fix this, it was necessary to split the "Join/Leave" view into separate "Join/Leave" and "Save/Discard" views. - No remark could be entered when discarding versions. - Fixed a ZServer kill_zombies bug which kept ZServer from killing hung connections. - Improved ZServer's handling of slightly broken HTTP requests. - Fixed a properties setting permission bug. - Fixed a product permissions registration bug that allowed product permission data to get lost. - Updated the MailHost product to use the new product initialization procedure. This fixed a MailHost adding permissions bug. - Made Z Class icons visible to everyone. This way you can view a Z Class icon without having and permissions on the Z Class. - Objects were sometimes incorrectly acquired do a bug in detecting attribute errors during acquisition. This led to errors getting covered up or obscured. - There was a memory leak in acquisition. - Some thread-safety problems were fixed. - DTML entity references (e.g. '&dtml-spam;') with missing semicolons (e.g. '&dtml-spam') caused infinite loops. - Extra spaces around expressions in DTML caused syntax errors. - Broken objects, which are used as surrogates for objects that can no longer be instantiated due to missing product installations, no longer use HTML markup in their text representation, as this caused odd effects in HTML titles. - A number of fixes were made to the new DOM support. - Versions could be deleted by users working in the deleted versions. This led to strange paradoxical effects. Attempts to delete a version or an object containing a version by someone working in a version now lead to errors. - ZGadflyDA has been updated to use the current (as of this release) version of Gadfly. (Note that this had been incorrectly reported as a 2.0 beta 1 feature.) - Using an sql method in a version sometimes caused the method to be locked, making it unusable by non-version users. This was due to the way that column meta-data was managed. Now column meta-data, used by report creation wizards, is only safed when sql methods are tested. - In StructuredText, list items could not directly introduce example code. - Undoing transactions that discarded versions did not cause versions to appear non-empty. - Temporary files were created for file storages that were opened in read-only mode. - A bug in FileStorage and DemoStorage didn't show you more than the first 20 previous transactions in the Undo log. - An incorrect contents view was returned after adding a File object. - On the cache parameters page, the number of bytes, rather than the number of objects in the database was shown. Note: The section for Zope 2.0 alpha 4 did not mention that ZCatalog is now shipped with the Zope core. Zope 2.0 beta 1 Backward incompatibility - ZODB 2 is no longer supported or included! - The utility script bbb.py, no longer supports xml output. Known problems - Handling of conflict errors hasn't been implemented. When two threads try to update the same object, one will get a conflict error. By beta release 2, requests that get conflict errors will be retried until they succeed (or fail without a conflict error) or until a maximum number of retries is exceeded. Features added - The default ports used by ZServer have been changed. The new default ports are: 8080 for HTTP, 8021 for FTP and 8099 for the monitor server. - ZServer now uses the zLOG logging mechanism for informational and warning messages. - ZServer now includes a fairly stable NT service ZService.py - 'access' file now can use SHA-1 hashing, and now does by default - 'zpasswd.py' added to top directory to manage this new 'access' file - A number of changes have been made to enhance security control in through-the-web-developed products: - There are new "Permission" objects that can be added to Products. Permission objects provide a mechanism for defining new permissions. These new permissions show up in folder security screens. - Factory objects can have permission settings. This affects whether items show up in add lists and who can use factories. - Objects in products now have permission mapping rather than direct permission settings just like ZClass methods. - New permissions cannot be defined in ZClasses any longer. Rather, ZClasses can select from global permissions, including permissions defined with permission objects. Here's a sample scenario: 1. Add a ZClass, "Container" with the option to create a factory and constructor methods. 2. Add a permission object with the permission "Manage Containers". 3. Change the permission of the factory created in step 1 to "Manage Containers". 4. Visit the ZClass created in step 1, view the "Define Permissions" view and map the "Create class instances" permission to "Manage Containers". 5. Visit the constructor DTML Methods created in step 1, view the "Define Permissions" view and map the "View" permission to "Manage Containers". In this scenario, we created a ZClass and made it addable only by users (roles) that have the "Manage Containers" permission. - There is a new module, Shared.DC.THUNK (lib/python/Shared/DC/THUNK.py) that provides a mix-in class that implements ZODB 3 transaction protocols and that provides course-grained locking logic that should allow many non-thread-safe database adapters to be usable in multi-threaded Zope applications. The Gadfly database adapter has been updated to use this mix-in class. - The transaction management mix-in classes (Shared.DC.TM.TM and Shared.DC.THUNK.THUNKED_TM) now provide a lower-level transaction management protocol. Database adapters that mix these in should: - Call 'self._register()' when performing database queries, and - If necessary, override methods: _begin() -- Which is called to begin a transaction, _finish() -- Which is called to finish a transaction, and save changes, or _abort() -- Which is called to abort (rollback) a transaction, and discard changes, or - Object export now provides an XML export option and import files may be in Zope export format or XML format. - Zope objects that support the Zope management framework now support the DOM 1.0 read interfaces. This allows DOM read methods and attributes to be usable with Zope objects and Python DOM tools, like FourThought's 4XSL to work with Zope objects. Note that DOM-defined attributes are defined with "get" methods. For example, to get the DOM-defined "parentNode" attribute, use: 'object.getParentNode()'. - The pyexpat extension module for using James Clark's expat library for parsing XML is included in the distribution as Shared.DC.pyexpat. Bugs Fixed - You can no longer cd to an acquired directory in ZServer FTP. - A number of changes were made for thread safety. This was not as hard as it sounds, since persistent objects are always thread-safe. (Well, only one thread accesses any particular copy of a persistent object.) The biggest issue here is mutable global variables, mutable objects stored in classes, mutable default Python function arguments, and global variables in extensions. Zope 2.0 alpha 4 Backward incompatibility - The old ZopeHTTPServer is no longer supported or included. Use ZServer. Features added - The let and return tags were added to DTML. - Several new input form types were added: :default -- allows you to specify default values :record -- allows you to combine multiple form variables into a single input variable. For example:: <input name="date.year:record:int"> <input name="date.month:record:int"> <input name="date.day:record:int"> will result in a single variable, 'date', with attributes 'year', 'month', and 'day'. :records -- allows you to input a list of records (ie a table) :ignore-empty -- If the field if the value is an empty string. For more information, see the section on "Form variable types" in http://www.zope.org/Documentation/Reference/Trinkets. - In the startup script, z2.py: - The startup script, z2.py, has additional documentation on providing empty strings as arguments. - Added a -P option to the startup script, z2.py, to specify a base port for the various servers. For example:: python z2.py -P8000 is equivalent to: python z2.py -w8080 -f8021 -m8099 This is a convenient short-hand for systems with many zserver instances running. - Added an -l option to the startup script, z2.py, to specify the location of the ZServer hit log. If the location is a relative path, then it is assumed to be rooted in the 'var' directory. - A progress indicator was added to the database conversion utility, utilities/bbb.py. - The PCGI installer now writes the PCGI info file to use ZODB 3 rather than ZODB 2. - The default content is provided in both ZODB 2 and ZODB 3 format. - There is a new logging framework for reporting errors from Python-level code. See the module zLOG.py for details. For the time being, to turn on logging, set the environment variable STUPID_LOG_FILE to a file name or to an empty string to log to standard error. We will eventually provide a more formal and functional logging configuration interface. - The hooks used by objects that modify their environment were changed. The new hooks are: manage_addHook -- called after an object has been added manage_beforeDelete -- called before an object is deleted manage_afterClone -- called after an object has been copied. This should only be used by object that capture their identity is some way other than their id attribute or persistent id. (It's really for ZClasses, which have global ids.) - Pack is now supported for ZODB3 File Storages. - The header output by manage_tabs now shows whether the current object has been modified or locked by a version and shows the version if the version isn't the current working version. - The locked-in-version decoration in the object management contents view shows the locking version if the version isn't the current working version. - Several demonstration ZODB Storage implementations have been added. See lib/python/ZODB/DemoStorage.py and lib/python/ZODB/dbmStorage.py. - Subtransactions have been added (instead of temporary versions). If a true argument is given in a transaction commit or abort call (e.g. 'get_transaction().commit(1)'), then the commit or abort applies to a subtransaction of the current transaction. This is useful in a number of ways, including: o Subtransaction commits on requests that work with lots of data can reduce memory usage because data can be removed from memory after changes are saved in a subtransaction, o You can rollback changes due to a local error without rolling back *all* of the changes made in a long transaction. - There is an advanced interface for specifying alternate storages for Zope. Zope will try to import the module 'custom_zodb' from INSTANCE_HOME and use it's Storage attribute. For example, to use a Demo storage based on the standard File storage, you might define a 'custom_zodb' module with:: import Globals, ZODB.FileStorage, ZODB.DemoStorage name='%s/Data.fs' % Globals.data_dir base=ZODB.FileStorage.FileStorage(name, read_only=1) Storage=ZODB.DemoStorage.DemoStorage("Demo (%s)" % name, base) - Find can now search text of SQL methods. - DTML tree tags now have a reverse option. - ZClasses now have class ids. These class ids are registered in a central registry and are used when unpicking instances. - Database connections now have a sync method for synchronizing the connection with saved data. This is useful for interactive connections to see database changes made by other threads. - Errors encountered when trying to unpickle object state are now logged, if logging is enabled. - Added an extra checkpoint to ZODB 3 FileStorage Transaction commit to better handle system crashes. - ZPublisher request objects now have a BODYFILE key to get the request body as a file for non-form non-GET requests. - Cookie support was added to the ZServer FTP server to make FTP access compatible with cookie-based authentication. - ZServer now includes a NT Service, 'ZServer.py' This service requires the Python win32 extensions. It is not yet complete and not yet integrated with the Zope installer. It does however include a large doc string. - ZServer is officially using the z2.py start script now. The old start.py and zinit.py were removed. Note: z2.py will call zdaemon.py for you, if you want to use ZServer in daemon mode on Unix. - Added a 'has_permission' method to user objects. This facilitates finding out if a user has access to a given object. For example::  - The product add list is now filtered. This should keep objects out of the product add list for which the user does not have adequate permissions. This is implemented with a new method, 'filtered_meta_types' which returns all the meta_types for which a given user has permissions. Note: Right now ZClasses do not associate permissions with Products. Thus all Control Panel Products appear in the product add list, no matter what roles the user has. - HTTP REQUEST objects now use HTML in their string representation. - The REQUEST keys of the form BASEx and URLx, where x is an integer now allow x to be greater than 9. - index_html is not longer used automatically for XML-RPC requests. - ZPublisher debugger, 'ZPublisher.test' now accepts a 'extra' keyword argument with a dictionary giving extra variables to be added to the request. This is handy for testing methods that require large amounts of input data, such as file uploads. - The load_site utility ('utilities/load_site.py') now accepts a '-9' switch to make it work with Zope (and Principia) sites at revisions 1.9 and lower. Bugs fixed - Got rid of some DOS line-endings in xmlrpclib.py that caused install-time module compilation to fail. - Fixed DOS line-endings in medusa/max_sockets.py - Fixed a NameError (missing TupleType) definition in the export/import (copy/paste) machinery. - The startup script failed on Windows because it imported the posix module without checking the os. - ZServer crashed when the number of simultaneous connections exceeded a system limit, especially on Windows. ZServer now stops accepting new connections when the number of active connections exceeds a threshold. - Accessing cached results of items() (or values() or keys()) calls on BTrees caused core dumps if affected elements were deleted. For example:: for k in abtree.keys(): del abtree[k] Note that this code is still incorrect due to the fact that the objects returned from abtree.items() (or values() or keys()) have reference, rather than copy semantics. - Compiling Acquisition.c caused (bogus) compiler errors on SGI. - zdeemun wus mispeled - Local roles were not handled correctly when filtering management views. - Copying and pasting ZClass instances copied and pasted their ZClasses too, effectively disconnecting them from their managed ZClasses. The same thing happened when ZClass instances were exported and imported. - The Database area in the control panel was broken. - Copy and paste of multiple objects was broken. - Copy and paste of ZClass methods was broken. - Copy and paste of ZClass properysheets was enabled and broken. It is now disabled. - Accidental import of BoboPOS in processes using ZODB (3) caused strange errors. - A bug in batch processing caused batch processing to hang or give incorrect results. - DocumentTemplate-based classes, like DTMLDocument and DTMLMethod could not be subclassed correctly. - There was a memeory leak in the DTML try tag. - When adding folders with user databases, no check was made to make sure the user was permitted to add a user database. - Broken objects weren't created for objects whose class could not be found when using ZODB 3. - The 'self' argument wasn't properly passed to external methods used in ZClasses. - The Setup file in the SearchIndex package had an unneeded -I option that caused compilation errors on some platforms. - ZGadflyDA transactions were not committed. - ZClasses didn't provide an interface to edit their titles. - Propertysheets were broken for ZClasses that inherited from built-in classes, like Folder and DTMLDocument. - Propertysheets were disabled for instances by default. Now, propertysheets have the "manage properties" permission by default. - The navigation pane wasn't updated when classes were added. - Changes in ZClasses were not properly propagated to all database connections using ZODB3. - Database connections were not closed correctly under heavy load when the number of application threads exceeded the number of database connections in the connection pool. This lead to Zope locking up under load if the application thread count was increased using the z2.py -t option. - undo in ZODB 3 didn't properly refresh objects. - export and import was broken for ZODB 3. - Fixed ZServer HTTP zombie killing. Now hung connections are successfully closed. - A bug in handling the case when a file was created on open without the create flag caused weird errors on windows. - The REQUEST BASE1 key was not computed correctly when SCRIPT_NAME was an empty string. - It was impossible to return an empty list or dictionary to an XML-RPC request. - The database conversion script fails when the first record in the input file lacked properly-formatted transaction data. The conversion script also didn't work on some systems due to an incorrect 'flush' call on the *input* file. - Factories that were also ZClass methods didn't get unregistered properly when they were deleted. Zope 2.0 alpha 3 Features added - XML-RPC support All Zope objects are now XML-RPC servers. - ZODB 2 (aka BoboPOS) to ZODB 3 FileStorage database conversion An option has been added to the bbb.py script in the utilities directory to convert ZODB 2 database files to ZODB 3 format. The bbb.py script now accepts an '-f' option that takes an argument specifying an output file name. For example, to convert the ZODB 2 data file, Data.bbb, in the var directory, to ZODB 3 FileStorage format:: python utilities/bbb.py -f var/Data.fs var/Data.bbb Note that version data are not converted. - In Z Classes, Methods and Property Sheets now have a "Define Permissions" management tab to map permissions. This tab used to be labeled "Security". - ZServer's FTP server now attempts to display an object's owner as defined in local roles. Bugs fixed - The cache management screens were broken - Local roles on DTML Methods and Documents were not persistent. - ZServer's select trigger has been updated and now shouldn't give errors when running ZServer as another users. - The tree tag used persistent object ids in ways that were not compatible with ZODB 3. This caused strange behavior like weird content-types and invalid state messages. - The DTML In tag no longer handled batch processing correctly, and sometimes got into infinite loops. This was due to a very old bug that was made effective by Python 1.5.2. - Objects that could not be loaded because their implementing modules (or packages) had been removed were not handled properly as broken objects when ZODB 3 was used. - The DTML Python string format did not allow expressions for simple variable insertion. Expression insertion is now allowed if the var tag name if the var tag name is supplied, as in:: %(var expr="x+1")s Note that, because of this change, the var tag name must also be supplied when a variable named 'var' is inserted, as in:: %(var var)s Zope 2.0 alpha 2 Features added - There is a new optional EXPERIMENTAL HTML DTML syntax. As an alternative to SSI syntax, you can now use ordinary HTML syntax, as in: <dtml-in objectIds> <dtml-var sequence-item> </dtml-in> You can also use an entity-reference syntax for the var tag as an alternative to the tag syntax. For example:: &dtml-foo; is equivalent to:: <dtml-var foo> and is especially handy in attributes:: <a href="&dtml-foo;"> Both the new syntax and the SSI syntax are allowed in the same document. In fact, if you were really twisted, you could: <dtml-in objectIds> <dtml-var sequence-item>  IMPORTANT This feature really is EXPERIMENTAL. It could disappear someday, depending on how people like it. We'd really like to get feedback on how useful this feature is. - reverse options were added to the in and tree tags. - The startup script, z2.py, has a -D option to turn on debugging mode. - Made environment variable settings work with the http server. So now you can do things like ./z2.py -w 8888 SCRIPT_NAME=Zope and actually have the specified SCRIPT_NAME override the normal SCRIPT_NAME. This is Useful for using ZServer behind a proxy. - Added support for the Medusa monitor server. - There's a first cut at a ZServer NT service. This is Zope on NT's answer to zdeamon.py It actually seems to work, though there's still a fair amount missing. - The error messages for missing or miss-formatted access files was improved. - A new debugging method, manage_debug, has been added to Control_Panel to monitor the Zope process for possible memory leaks. - The name, 'this', has been added to the namespace available to construction methods to provide a function for computing the destination object. The name, 'this' is essentially equivalent to 'Destination' and 'Destination' will be deprecated eventually. - The title of the main Zope management interface now includes a full URL. - Folders that have (or acquire) index_html methods now have view tabs for viewing index_html. - On browsers that support Java Script, the "Add" button is omitted and the add form is visited as soon as a selection is made from the select list. - The python-pickle format used to export data from ZODB 2 was updated to handle string data differently. - Update syslog clients to try for SOCK_DGRAM first, since newer syslogd won't accept SOCK_STREAM connections (Collector #888). Bugs fixed - A number of bugs and features were left out of the release notes for Zope 2.0 alpha 1. The notes for Zope 2.0 alpha 1 have been updated substantially. - There was a serious memory leak introduced when a security bug was fixed in 1.10.0. - There was a memory leak in ZODB 3 persistent objects, which now manage object IDs as persistent objects. - The Python 1.5.2 cgi module didn't work with Zope. Zope now includes its own fixed version of the module. This bug caused FTP, Netscape Publishing and WebDAV to fail. - A bug in transaction management caused Gadfly requests to fail. Other database adapters need to be updated. - Running ZServer as nobody failed due to the order in which the log file was opened. - Added fix contributed by Brian Hooper for HTTP Clients which don't always spell their HTTP headers correctly. - A number of classes didn't get there reference-counts reduced when instances were destroyed. This confused the new memory allocation monitoring tool. - New user folders had no effect because they did not get properly registered in their containing folders. - Changes made to factory objects were lost when a process was restarted. - Clicking on the 'Help' caused the help information to be displayed in the current frame, rather than in a new window. - Shutting down Zope attempted to save the database index even when Zope was run in read-only mode. - A number of fixes were made in the Date-Time support. - Batch processing in the in tag sometimes failed. - Sites with custom roles in the top-level application object did not pick up the new 'Owner' role. - Content-type detection had problems in DTML documents and methods. - Some cookie expiration dates used 2-digit years. - Error values for errors raised by ExternalMethods were lost. - Values returned by absolute_url were not URL quoted. - Extra newlines were prepended to documents when they were edited. - Objects ids were not properly quoted in a number of places, because id quoting was unnecessary until recent relaxation of the rules for ids. - ExternalMethods are now automatically reloaded when running in debug mode. - Search interfaces generated by the search interface wizard no longer include a "Cancel" button. - Errors were masked by a bug in handling ZODB3 transaction aborts. - The ZODB 3 cache manager deactivated objects too quickly, causing performance to degrade. - BASEx request variables were not computed correctly when SCRIPT_NAME was not empty. - The URLx variables couldn't be computed in some cases when using ZServer. Zope 2.0 alpha 1 BACKWARD INCOMPATIBILITY - A change was made to the way ZClasses are constructed. Previously, the __call__ method was an alias for the index_html method which took took an id and a request and created a new instance and added the instance to the destination. Now, the __call__ method simply calls the underlying managed class with the supplied arguments to create and return an instance. The instance is not added to a folder. The index_html method is now an alias for the createInObjectManager method, which does what the index_html method did before. There is a new method, fromRequest, that takes an id and a request and creates a new instance. It does not at the instance to a destination. Features Added - Integration of ZODB 3 - The ZClass construction interface has been cleaned up to make construction of ZClasses a little easier from Python. - When adding ZClasses, there is now an option to automatically create construction methods and a factory. - "Management" screens now *only* show tabs a user permitted to see. Used in combination with carefully selected roles, this change provides an adaptable management interface. - Instance homes can now have local Products directories. - There is a new ZServer start up script that can be used without modification and that integrates process management. This script replaces the ZServer 'start.py' and 'zinit.py' scripts. - When the new startup script is used, then the control panel shows a "Restart" button which causes the Zope process to exit and be restarted and a "Shutdown" button that causes Zope to exit and not be restarted. - There is a *very* rough cut at a centralized version manager in the control panel. This is only functional when the ZODB3 database is used. This feature will mature significantly before the final 2.0 release. - A new Zope icon was added, and the "powered by Zope" icon has been updated. - Made DTMLDocuments, DTMLMethods, Images, Files and Folders subclassable by ZClasses. - ZClass property sheets can now have read and modify permissions. - An "add list" name can be specified when creating a ZClass. If specified, then construction methods and a factory are created. This makes the class immediately instantiatable and provides construction method examples. - The ZClass basic property sheet now shows base classes. - Changed the string representation of HTTPRequest so that  is a lot friendlier. - Added a Zope debugging short cut. Now:: import ZPublisher ZPublisher.Zope(path) is a shortcut for:: import ZPublisher ZPublisher.test('Zope', path) Bugs Fixed - ZClass permission setting interfaces didn't show inherited permissions. - A number of bugs arising from attempts to set caching headers were fixed. - Some default permissions were not set correctly. - The unused non-functioning resource-consuming Scheduler has been removed. - Access was given to objects without roles even if access would be denied to the container. - Fix submitted by Martijn Pieters: Any property type int or long, set to 0, showed up in the Properties Management tab as blank. This resulted in errors when trying to change values of other properties, etc. - Version names were computed incorrectly. - Delete and rename were broken for ZClasses. - It wasn't possible to override inherited attributes with methods in ZClasses. - Property values were not removed from ZClasses when property sheets were deleted. This made it impossible to re-add a property from a deleted property sheet. - Generated property view and edit forms for ZClass property sheets had a number of problems. - The propertysheets property sheet should only allow addition of property sheets. Zope 1.11.0 pr1, which should have been named Zope 2.0.0 alpha 0. Lots has changed in this release. The major news is ZClasses and WebDAV. Features Added - Added WebDAV support. See http://webdav.zope.org/ for details. - Added Z Classes. Documentation is forthcoming. ZClasses might be viewed as somewhat experimental, although we're using them aggressively for internal projects. - Added Property Sheets. Documentation is forthcoming. - ZServer now included in distribution. - Added new product registration interface. Documentation is forthcoming. - Added local roles which allow for permission settings for users on individual objects. This allows for 'ownership' of Zope objects. Added 'Owner' role to default roles, and automatic setting of the 'Owner' role on a created object to the user who created it. - Added hooks for XML-RPC support to ZPublisher. See the source for details. XML-RPC support is not yet finished. - Added automatic height/width detection for JPEG images. - Revised Zope error messages. - A new DTML 'try' tag added based on work by Jordan B. Baker. See the source for details. Documentation is forthcoming. - A new DTML 'mime' tag has been added. See the MIMETools README.txt for more information. - A new 'range' function added the the '_' DTML variable. - A new 'utilities' directory is included in the distribution. - A new flag attribute, 'only', of the DTML 'with' tag prunes the DTML namespace to only the namespace created with the with tag. - Added contributed support for encoding options in the SendMail tag and MailHost send method. - Management tabs are now prettier and allow status messages with the manage_tabs_message variable. - Added a method of notifying users of changes without using a MessageDialog. This makes editing DTML Documents and Methods easier. - Added more documentation to Product add screens. - New icons for many Zope objects. - Sessions are now known as Versions. - Changed from using 'manage_main' as default management method to use 'manage_workspace' which is a reserved method that dispatches to the default management interface which is the first interface defined in manage_options - Permission settings are now inherited by Products from their base classes. This means when you build a Product you only need to specify its particular permission settings. - Changed ZPublisher.publish_module's interface so that instead of providing a stdin, stdout, and stderr, you can provide a Request and a Response object. ZServer makes extensive use of this feature. - Added methods to HTTPRequest to allow access to ZPublishers object traversal. HTTPRequest.clone and HTTPRequest.resolve_url. See the source for more details. - Added a new "builtin" function reorder to DTML. reorder(s, [with, without]]) Reorder the items in s according to the order given in with and with items mentioned in without removed. Items from s not mentioned in with are removed. s, with, and without are all either sequences if strings or sequences of key-value tuples, with ordering done on the keys. This function is useful for constructing ordered select lists. Bugs Fixed - Added small fixes to ZopeHTTPServer in anticipation of DAV. - Construction, upload, and edit methods did not consistently support either string or file data. This caused really weird behavior when file upload was used with out including the ':string' suffix in the argument name when doing a file upload. This bug was previously (and incorrectly) reported as a ZPublisher.Client problem. - Errors in ExternalMethods were masked by bugs in error reporting logic. The bugs were made far more effective by Python 1.5.1. - Databases (or export files) created in binary distributions were not usable in source distributions due to cPickle limitations in stock Python 1.5.1. We now link/copy the cPickle extension to BoboPOS to make sure that it uses the latest version. - Fixed registration of MailHost settings and incorrect default quoted-printable encoding of message bodies. - Added contributed patch that fixes bug in copied-object id generation. - DTML Documents and Methods now attempt to determine their content-type rather than assuming they are text/html. - Fixed PUT bug in determining content-type of binary files. - Added changes that allow the top level userfolder to be replaced by a UserDB or other userfolder-like object. - Fixed an FTP support bug that sometimes kept simple items from producing FTP listings. - Added URL1 instead of "." as the form target for the workspace forms -- using "." causes NS servers to intercept the request and report an error, making Zope effectively unusable. - Added ZPL 1.0 and credits to copyright link in management screen. - Fixed a bug that prevented validate() from working if the top-level object were accessed and no default object (index_html) existed. - Fixed a logic bug in security validation that allowed access to unacquired objects that didn't have __roles__ even if the containing object was protected. Zope 1.10.2 Bugs Fixed - Fixed a permission problem with DTMLMethod objects that caused errors when attempting to commit permission changes. - Factories could not determine the available methods when they were being edited, making them uneditable. Zope 1.10.1 This is a Python 1.5.2 beta 2 compatibility release. A Python C API change in Python 1.5.2 beta 2 broke Zope. This release contains a fix. Zope should work correctly with Python 1.5, 1.5.1 and beta versions of 1.5.2. Zope 1.10.0 New Features - Added Import/Export interfaces to Folders. Bugs Fixed - Fixed a bug in ZopeHTTPServer which caused it to fail on POST requests without content-type headers. - PUT and file uploads would fail if the content-type could not be determined. Now objects created via PUT and file upload will default to either 'application/octet-stream' for binary files or 'text/plain' for non-binary files if no content-type can be determined from headers or filename extensions. - Fixed a permission bug left from a change to the Find support. - Fixed misc typos in docstrings and docs. - Fixed a bug that kept objects from being freed from the cache! Basically, there was never a check for inactive objects. - MailHost objects didn't do appropriate CRLF conversion or recognize 4xx server responses. Zope 1.10.0 pr1 New Features - Documents generated by the search interface wizard no longer use tab characters. - Added a -s option to ZopeHTTPServer. This is useful for emulating older sites when generating screen shots for creating or updating documentation. - Default bobobase now includes a Zope button along with a link to the Zope site. This satisfies the ZPL attribution requirement. The button is created by a new builtin method 'ZopeAttributionButton'. Also, both the source and the binary distributions now have the same default bobobase. - Made the logic for getting SOFTWARE_HOME a bit more robust, so that it handles relative paths and paths starting with '.' and '..'. This is useful when simply importing Main from the Python prompt in the lib/python directory. - The ThreadLock module has been changed to reflect changes in the Python API in Python 1.5.2. - The '_' variable in DTML now has the random module as an attribute and DateTime.DateTime as the attribute DateTime. - Added keys() and items() methods to the REQUEST object. - Added get_header() method to the REQUEST object for retrieving HTTP headers. - New SearchIndex package and BTree component have been added to the distribution, providing low-level support for products with built-in searching such as Tabula and Confera. - Documents have now been split into two distinct object types: DTML Documents and DTML Methods. DTML Methods behave exactly as Document objects did. DTML Documents are similar except that the "client" or "self" of a DTML Document is the DTML Document itself rather than its parent, and DTML Documents can have properties. - DTML Documents, Image and File objects can now have properties. - A new PropertyManager mixin class allows developers to easily add properties and property management to non-Folder objects. - Added a new absolute_url method which can generate an absolute url for the object on which the method is called. - GIF and PNG Images now figure out their own dimensions when uploaded. Image height and width properties are now editable. - Images now generate themselves as html IMG tags, using an absolute url and correct height and width tags if possible. - There is a new form input type, boolean, for inputing boolean data. - Added a read_only option to the SimpleDB.MultipleRevision and PickleDictionary constructors to open a database in read_only mode. - Added an environment variable, ZOPE_READ_ONLY, used by the Zope framework. If this variable is set, then the database is opened in read only mode. If this variable is set to a string parsable by DateTime.DateTime, then the database is opened read-only as of the time given. Note that changes made by another process after the database has been opened are not visible. - Added a database_quota option to the SimpleDB.MultipleRevision and PickleDictionary constructors and a SimpleDB.MultipleRevision.set_quota method to set a database quota. The quota is given as either an integer number of bytes, or a function taking an integer number of bytes argument and returning whether the quota has been exceeded. - Added an environment variable, ZOPE_DATABASE_QUOTA, used by the Zope framework. If this variable is set, it should be set to an integer number of bytes. Additions to the database are not allowed if the database size exceeds the quota. - Added size and last modification time to DTML Method and DTML Document edit interface. - Added a new module, BoboPOS.winlock, that provides file locking on windows. This should prevent many cases of data corruption. - Added FTP support to Documents, Files, Images, and Folders. FTP interface is detailed in OFS/FTPInterface.py though it may change. Basic FTP support was also added to SimpleItem to make it easier for Zope objects to support FTP. Bugs Fixed - Permissions for manage_clone method were wrong, meaning that essentially only managers could use it. - File paths that showed up in tracebacks reflected the paths the files had when they were compiled (at distribution build-time). The compiled-in paths have been changed to be relative to the Zope installation directory. - Fixed a bug in ZPublisher's special handling the "cancel" submit buttons. The test for the cancel button was case sensitive. I changed it so it would accept any case, as well as extra spaces. Cancel buttons should probably be handled using the new :method form type, but this would require the presense of an appropriate redirect method. Perhaps there should be a :redirect form type. - Date strings with years < 31 were not accepted, even through the documentation says they should be. - If Zope crashed or was unable to completely write a database record, then on restart, a data corruption error was reported. Now, truncated records are removed if necessary on start up. If necessary, other records are removed as well to avoid partially-written transactions. - Lack of sys.argv in the win32 service version of Zope caused it to raise errors under certain conditions. - Several HTTP PUT related bugs were fixed. - Simple items did not have an objectValues method, which caused odd behavior in certain tree tags since the method would be acquired from the parent of the simple item. - The Find form in the management interface depended on javascript to function properly. - Added a fix to compensate for the fact that Apache servers may rename the entire cgi environment when mod_rewrite rules are used in .htaccess files. - If system clocks were changed, so that database records had records in the "future", then database corruption could either occur or be incorrectly reported. Now this situation results in an informative error message and corruption does not occur. Zope 1.9.0 New Features - Zope now provides better information about products. If a Product has a README.txt, then it will be readable through the product management interface. If a product encounters an error during startup, the traceback is available through the product management interface. - Cache statistics are displayed in minutes, rather than seconds. - Products can define the attribute '__module_aliases__' in their '__init__' modules that specifies aliases for modules used in the product. This is useful if module names have changed and the database contains pickles refering to the old modules. The attribute should be a sequence of tuples. Each tuple has a (dotted) module name and a module. Bugs Fixed - Development on ZopeHTTPServer has been frozen in anticipation of the switch to Medusa. Therefor ZopeHTTPServer still does support PUT. Sorry. - ZPublisher.Client used the obsolete rand module. - Errors occuring during product import caused Zope to fail to come up. - Product version information was not displayed correctly. - ZGadflyDA cached table meta-data which lead to missleading information when browsing databases. Zope 1.9 beta 3 New Features - Z SQL Methods (FKA Aqueduct) and the Z Gadfly Database Adapter are now included. - The argument handling for ZopeHTTPServer has been changed to be a bit more flexible wrt the order of argumements. While options must still come first, environment settings can be given in any order. This makes startup scripts loke serve.py quite a bit simpler. - ZopeHTTPServer now sports preliminary support for PUT publishing. - ZopeHTTPServer now serves from port 9673 by default, not 8080. Bugs fixed - The start.bat file used to start ZopeHTTPServer on win32 was misnamed and didn't correctly pass command-line arguments. - Win32 machines without an existing Python installation had problems due to PYTHONPATH bootstrapping. - The included ZopeHTTPServer was failing to start correctly on win32 machines that were not connected to the network. Zope 1.9 beta 2 In addition to various documentation updates, this release includes: New Features - Changed serve.py to accept ZopeHTTPServer command-line options. - Added a -P option to the ZopeHTTPServer to specify a file to contain the process ID. This allows a script to stop the process on Unix. - Added support for the environment variables, Z_REALM and Z_DEBUG_MODE to set an authentication realm and to enable debug mode. Bugs fixed - External methods were broken due to differences in Python 1.4 and Python 1.5 comparison semantics. - ZopeHTTPServer command-line environment settings were not available in os.environ. - Some class references were wrong in examples in the ExtensionClass documentation. - INSTANCE_HOME was not set correctly when the debugger was run with a relative path to the published module. - The #! line in the ZopeHTTPServer was hidden by the copyright statement and didn't have the right path. - A bug in pcgi_publisher.py caused file uploads larger than 1 MB to fail. Zope 1.9 beta 1 Bugs fixed: - pcgi did not build correctly on Solaris 2.6 - links in headers were broken when Zope was reached with /, as is the case when the ZopeHTTPServer is used. - Python sources used tabs and spaces for indentation, which made some people unhappy. - Copyright statements were missing or out of date. - Added better instructions for building and running Zope. - Added new Zope License and attribution information. - Merged BoboHTTPServer updates with ZopeHTTPServer. Including socket changes to allow easier stopping and starting. - Shutting down the ZopeHTTPServer from the application caused an empty document to be returned. - The install scripts failed if run more than once when attempting to create a var directory. Features - Added (and old version of) the zlib module to make installation simpler. - Zope requires an access file. The install scripts now create one. Zope 1.9 alpha 1 This was the inital Zope test release.