Re: [Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
it took me hours to find out that i had the same issue in a plone-4.0a3 buildout until i found this thread in the meantime 2.12.2 is released so all one needs to do is to modify http://dist.plone.org/release/4.0a3/versions.cfg to use zope-2.12.2: [buildout] extends = http://download.zope.org/Zope2/index/2.12.2/versions.cfg ... Zope2 = 2.12.2 thanks for fixing this! fRiSi Martin Aspeli wrote: > On 15/12/09 5:45, Tres Seaver wrote: > >>> I've committed this in r106436 and merged to trunk in r106437. >> >> OK, sounds fine to me. Can you merge to the 2.11 branch as well? I >> think Andreas will be releasing 2.9.x through 2.12.x fairly soon. > > Sure, I'd forgotten about that one. > >>> If anyone objects, please let me know and I'll back it out. Otherwise, >>> I'm hopeful for a 2.12.2 soon, as this breaks a few things in Plone. :-/ >> >> Heh, and after you have been just posting about using SVN develop eggs >> on your blog. ;) > > Right. I can run from a develop egg in this project, but I wouldn't want > to ask everyone who uses Plone to do that. :) > > Martin > -- Webmeisterei GmbH - Büro für Netzfragen Tel: +43 5572 908877, Fax: +43 5572 908877-66 Steinebach 18, A-6850 Dornbirn http://www.webmeisterei.com ___ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
On 15/12/09 5:45, Tres Seaver wrote: >> I've committed this in r106436 and merged to trunk in r106437. > > OK, sounds fine to me. Can you merge to the 2.11 branch as well? I > think Andreas will be releasing 2.9.x through 2.12.x fairly soon. Sure, I'd forgotten about that one. >> If anyone objects, please let me know and I'll back it out. Otherwise, >> I'm hopeful for a 2.12.2 soon, as this breaks a few things in Plone. :-/ > > Heh, and after you have been just posting about using SVN develop eggs > on your blog. ;) Right. I can run from a develop egg in this project, but I wouldn't want to ask everyone who uses Plone to do that. :) Martin -- Author of `Professional Plone Development`, a book for developers who want to work with Plone. See http://martinaspeli.net/plone-book ___ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Martin Aspeli wrote: > On 13/12/09 16:49, Martin Aspeli wrote: >> On 13/12/09 10:52, Tres Seaver wrote: >> >>> Doesn't smell like a regression to me: the code there hasn't changed in >>> a good long while. Can you write a test case for it, so that we can >>> test against earlier versions? >> Aha! http://codespeak.net/pipermail/z3-five/2007q2/002185.html >> >> This is the same problem. >> >> You said: >> >> "This is becuase >> 'Products.PageTemplates.Expression.createTrustedZopeEngine' only trusts >> 'python:' expressions; path traversal is still governed by >> 'boboAwareZopeTraverse', which uses 'restrictedTraverse'." >> >> and then: >> >> "As it turns out, it is only "partially trusted." The attached patch >> should make them "really trusted", at least for path expressions; does >> it help? I haven't added any tests, although my 2.10 branch checkout >> does pass all tests with this change" >> >> The attachment is here: >> >> http://codespeak.net/pipermail/z3-five/attachments/20070506/7f8a9ea8/attachment.bin >> >> I'm going to poke around a Zope 2.12 checkout for a bit to see what >> sense I can make of this. > > Okay, so it turns out your patch has gotten lost from Zope 2.10 to Zope > 2.12. > > This is the revision where it went in: > > http://zope3.pov.lt/trac/changeset/77064/Zope/branches/2.10/lib/python/Products/PageTemplates/Expressions.py > > I think that by accident this got committed with an unrelated change, > since the commit message says "Use Five 1.5.5" and there's a change in > svn:externals. Perhaps that's why this wasn't merged to trunk. The > latest merge I can see is at r71802. > > This also makes me worry about > http://zope3.pov.lt/trac/browser/Zope/branches/2.10/lib/python/Products/PageTemplates/Expressions.py?rev=78766 > > and > http://zope3.pov.lt/trac/browser/Zope/branches/2.10/lib/python/Products/PageTemplates/Expressions.py?rev=93506, > > which may not have been merged, but I'm too far down the rabbit hole now > to see clearly. > > Anyway, I re-applied your patch to the Zope 2.12 branch. This broke one > test, in Products.Five: > >self.assertEqual(engine.types['standard'], ZopePathExpr) > > I'd argue that this test is testing for precisely the wrong thing, so I > updated this assertion and the ones to follow to check for: > >self.assertEqual(engine.types['standard'], TrustedZopePathExpr) > > This fixes the original issue I was seeing. All Zope 2.12 and Plone 4 > tests pass with this as well. > > I also think the fixed test in Five is now correct and sufficient, since > it checks that we get the trusted engine for ViewPageTemplateFile's. > Maybe we should have a functional test too, but I'm not sure how to set > that up. > > I've committed this in r106436 and merged to trunk in r106437. OK, sounds fine to me. Can you merge to the 2.11 branch as well? I think Andreas will be releasing 2.9.x through 2.12.x fairly soon. > If anyone objects, please let me know and I'll back it out. Otherwise, > I'm hopeful for a 2.12.2 soon, as this breaks a few things in Plone. :-/ Heh, and after you have been just posting about using SVN develop eggs on your blog. ;) Tres. - -- === Tres Seaver +1 540-429-0999 tsea...@palladion.com Palladion Software "Excellence by Design"http://palladion.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAksmshYACgkQ+gerLs4ltQ4BNwCfctztlQ5F2uVVSPawCQ/sli2X hpYAoNSveWbE+NUx6G6BYxSEDsFjaa2v =wwi6 -END PGP SIGNATURE- ___ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
On 13/12/09 16:49, Martin Aspeli wrote: > On 13/12/09 10:52, Tres Seaver wrote: > >> Doesn't smell like a regression to me: the code there hasn't changed in >> a good long while. Can you write a test case for it, so that we can >> test against earlier versions? > > Aha! http://codespeak.net/pipermail/z3-five/2007q2/002185.html > > This is the same problem. > > You said: > > "This is becuase > 'Products.PageTemplates.Expression.createTrustedZopeEngine' only trusts > 'python:' expressions; path traversal is still governed by > 'boboAwareZopeTraverse', which uses 'restrictedTraverse'." > > and then: > > "As it turns out, it is only "partially trusted." The attached patch > should make them "really trusted", at least for path expressions; does > it help? I haven't added any tests, although my 2.10 branch checkout > does pass all tests with this change" > > The attachment is here: > > http://codespeak.net/pipermail/z3-five/attachments/20070506/7f8a9ea8/attachment.bin > > I'm going to poke around a Zope 2.12 checkout for a bit to see what > sense I can make of this. Okay, so it turns out your patch has gotten lost from Zope 2.10 to Zope 2.12. This is the revision where it went in: http://zope3.pov.lt/trac/changeset/77064/Zope/branches/2.10/lib/python/Products/PageTemplates/Expressions.py I think that by accident this got committed with an unrelated change, since the commit message says "Use Five 1.5.5" and there's a change in svn:externals. Perhaps that's why this wasn't merged to trunk. The latest merge I can see is at r71802. This also makes me worry about http://zope3.pov.lt/trac/browser/Zope/branches/2.10/lib/python/Products/PageTemplates/Expressions.py?rev=78766 and http://zope3.pov.lt/trac/browser/Zope/branches/2.10/lib/python/Products/PageTemplates/Expressions.py?rev=93506, which may not have been merged, but I'm too far down the rabbit hole now to see clearly. Anyway, I re-applied your patch to the Zope 2.12 branch. This broke one test, in Products.Five: self.assertEqual(engine.types['standard'], ZopePathExpr) I'd argue that this test is testing for precisely the wrong thing, so I updated this assertion and the ones to follow to check for: self.assertEqual(engine.types['standard'], TrustedZopePathExpr) This fixes the original issue I was seeing. All Zope 2.12 and Plone 4 tests pass with this as well. I also think the fixed test in Five is now correct and sufficient, since it checks that we get the trusted engine for ViewPageTemplateFile's. Maybe we should have a functional test too, but I'm not sure how to set that up. I've committed this in r106436 and merged to trunk in r106437. If anyone objects, please let me know and I'll back it out. Otherwise, I'm hopeful for a 2.12.2 soon, as this breaks a few things in Plone. :-/ Martin -- Author of `Professional Plone Development`, a book for developers who want to work with Plone. See http://martinaspeli.net/plone-book ___ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
On 13/12/09 10:52, Tres Seaver wrote: > Doesn't smell like a regression to me: the code there hasn't changed in > a good long while. Can you write a test case for it, so that we can > test against earlier versions? Aha! http://codespeak.net/pipermail/z3-five/2007q2/002185.html This is the same problem. You said: "This is becuase 'Products.PageTemplates.Expression.createTrustedZopeEngine' only trusts 'python:' expressions; path traversal is still governed by 'boboAwareZopeTraverse', which uses 'restrictedTraverse'." and then: "As it turns out, it is only "partially trusted." The attached patch should make them "really trusted", at least for path expressions; does it help? I haven't added any tests, although my 2.10 branch checkout does pass all tests with this change" The attachment is here: http://codespeak.net/pipermail/z3-five/attachments/20070506/7f8a9ea8/attachment.bin I'm going to poke around a Zope 2.12 checkout for a bit to see what sense I can make of this. Martin -- Author of `Professional Plone Development`, a book for developers who want to work with Plone. See http://martinaspeli.net/plone-book ___ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
On 13/12/09 10:52, Tres Seaver wrote: > Doesn't smell like a regression to me: the code there hasn't changed in > a good long while. Can you write a test case for it, so that we can > test against earlier versions? I'm almost completely sure that this was an issue ages ago, and slightly less sure that you were the one to fix it in the end. :) Google is failing me in trying to dig up the original mail or changeset, though. I'm struggling to understand the interplay between Products.Five.browser.pagetemplatefile, zope.pagetemplate, zope.tal, zope.tales, Products.PageTemplates, and OFS.Traversable, but I'm trying to find a solution. I'll try to get a working test into Zope 2.12 too. Martin -- Author of `Professional Plone Development`, a book for developers who want to work with Plone. See http://martinaspeli.net/plone-book ___ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Martin Aspeli wrote:
> Hi,
>
> Ages ago, I started a thread (I think on this list) about the use of TAL
> expression in Zope 3-style page templates (i.e. ViewPageTemplateFile's
> used on views) incorrectly performing security checks when using TAL
> expressions.
>
> I think Tres fixed it at the time (I can't find the original mail), but
> in Zope 2.12.2 there seems to have been a regression. I'd like to make
> sure I've not missed something, though.
>
> I see the problem in Plone 4.0a2 on Zope 2.12, trying to use
> plone.app.registry. This package has a class that derives from
> plone.registry.registry.Registry (a "ZTK-only" version) and SimpleItem
> (to get Zope 2 security and ZMI visibility). Otherwise, it does nothing.
>
> There is a view for this class registered like this:
>
>name="view"
> for="plone.registry.interfaces.IRegistry"
> template="records.pt"
> permission="cmf.ManagePortal"
> />
>
> In records.pt, there is the following:
>
>
> ...
>
>
> This fails with the stack trace below. However, if I change it to use a
> python: expression, it's all fine:
>
>
> ...
>
>
>
>
> As you can see from the stack trace, the TAL expression has resulted in
> the use of restrictedTraverse(). I think it should be using
> unrestrictedTraverse(), since ViewPageTemplateFile's are filesystem code.
>
> (In this particular case, it's failing the restrictedTraverse check
> because 'records' is a property and so doesn't have an aq chain, but
> nevermind that).
>
> Stack trace:
>
> 2009-12-13 00:40:13 ERROR Zope.SiteErrorLog 1260636013.580.4115611559
> http://localhost:8080/test/portal_registry/@@view
> Traceback (innermost last):
>Module ZPublisher.Publish, line 127, in publish
>Module ZPublisher.mapply, line 77, in mapply
>Module Products.PDBDebugMode.runcall, line 70, in pdb_runcall
>Module ZPublisher.Publish, line 47, in call_object
>Module Products.Five.browser.metaconfigure, line 427, in __call__
>Module Products.Five.browser.pagetemplatefile, line 126, in __call__
>Module Products.Five.browser.pagetemplatefile, line 60, in __call__
>Module zope.pagetemplate.pagetemplate, line 115, in pt_render
>Module zope.tal.talinterpreter, line 271, in __call__
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 888, in do_useMacro
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 533, in do_optTag_tal
>Module zope.tal.talinterpreter, line 518, in do_optTag
>Module zope.tal.talinterpreter, line 513, in no_tag
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 888, in do_useMacro
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 533, in do_optTag_tal
>Module zope.tal.talinterpreter, line 518, in do_optTag
>Module zope.tal.talinterpreter, line 513, in no_tag
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 946, in do_defineSlot
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 533, in do_optTag_tal
>Module zope.tal.talinterpreter, line 518, in do_optTag
>Module zope.tal.talinterpreter, line 513, in no_tag
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 954, in do_defineSlot
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 533, in do_optTag_tal
>Module zope.tal.talinterpreter, line 518, in do_optTag
>Module zope.tal.talinterpreter, line 513, in no_tag
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 946, in do_defineSlot
>Module zope.tal.talinterpreter, line 343, in interpret
>Module zope.tal.talinterpreter, line 819, in do_loop_tal
>Module zope.tales.tales, line 682, in setRepeat
>Module zope.tales.tales, line 696, in evaluate
> - URL:
> /Users/optilude/Development/Plone/Instances/Clients/Lotterywest/osc/src/plone.app.registry/plone/app/registry/browser/records.pt
> - Line 33, Column 12
> - Expression:
> - Names:
>{'args': (),
> 'container': ,
> 'context': ,
> 'default': ,
> 'here': ,
> 'loop': {},
> 'nothing': None,
> 'options': {},
> 'repeat': at 0x108e8b3b0>,
> 'request': URL=http://localhost:8080/test/portal_registry/@@view>,
> 'root': ,
> 'template':
> 0x10792b950>,
> 'traverse_subpath': [],
> 'user': ,
> 'view': /Users/optilude/Development/Plone/Instances/Clients/Lotterywest/osc/src/plone.app.registry/plone/app/registry/browser/records.pt
>
> object at 0x10885c810>,
> 'vi
[Zope-dev] Possible Zope 2.12 regression - Five page templates use restrictedTraverse for TAL
Hi,
Ages ago, I started a thread (I think on this list) about the use of TAL
expression in Zope 3-style page templates (i.e. ViewPageTemplateFile's
used on views) incorrectly performing security checks when using TAL
expressions.
I think Tres fixed it at the time (I can't find the original mail), but
in Zope 2.12.2 there seems to have been a regression. I'd like to make
sure I've not missed something, though.
I see the problem in Plone 4.0a2 on Zope 2.12, trying to use
plone.app.registry. This package has a class that derives from
plone.registry.registry.Registry (a "ZTK-only" version) and SimpleItem
(to get Zope 2 security and ZMI visibility). Otherwise, it does nothing.
There is a view for this class registered like this:
In records.pt, there is the following:
...
This fails with the stack trace below. However, if I change it to use a
python: expression, it's all fine:
...
As you can see from the stack trace, the TAL expression has resulted in
the use of restrictedTraverse(). I think it should be using
unrestrictedTraverse(), since ViewPageTemplateFile's are filesystem code.
(In this particular case, it's failing the restrictedTraverse check
because 'records' is a property and so doesn't have an aq chain, but
nevermind that).
Stack trace:
2009-12-13 00:40:13 ERROR Zope.SiteErrorLog 1260636013.580.4115611559
http://localhost:8080/test/portal_registry/@@view
Traceback (innermost last):
Module ZPublisher.Publish, line 127, in publish
Module ZPublisher.mapply, line 77, in mapply
Module Products.PDBDebugMode.runcall, line 70, in pdb_runcall
Module ZPublisher.Publish, line 47, in call_object
Module Products.Five.browser.metaconfigure, line 427, in __call__
Module Products.Five.browser.pagetemplatefile, line 126, in __call__
Module Products.Five.browser.pagetemplatefile, line 60, in __call__
Module zope.pagetemplate.pagetemplate, line 115, in pt_render
Module zope.tal.talinterpreter, line 271, in __call__
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 888, in do_useMacro
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 533, in do_optTag_tal
Module zope.tal.talinterpreter, line 518, in do_optTag
Module zope.tal.talinterpreter, line 513, in no_tag
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 888, in do_useMacro
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 533, in do_optTag_tal
Module zope.tal.talinterpreter, line 518, in do_optTag
Module zope.tal.talinterpreter, line 513, in no_tag
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 946, in do_defineSlot
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 533, in do_optTag_tal
Module zope.tal.talinterpreter, line 518, in do_optTag
Module zope.tal.talinterpreter, line 513, in no_tag
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 954, in do_defineSlot
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 533, in do_optTag_tal
Module zope.tal.talinterpreter, line 518, in do_optTag
Module zope.tal.talinterpreter, line 513, in no_tag
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 946, in do_defineSlot
Module zope.tal.talinterpreter, line 343, in interpret
Module zope.tal.talinterpreter, line 819, in do_loop_tal
Module zope.tales.tales, line 682, in setRepeat
Module zope.tales.tales, line 696, in evaluate
- URL:
/Users/optilude/Development/Plone/Instances/Clients/Lotterywest/osc/src/plone.app.registry/plone/app/registry/browser/records.pt
- Line 33, Column 12
- Expression:
- Names:
{'args': (),
'container': ,
'context': ,
'default': ,
'here': ,
'loop': {},
'nothing': None,
'options': {},
'repeat': ,
'request': http://localhost:8080/test/portal_registry/@@view>,
'root': ,
'template':
,
'traverse_subpath': [],
'user': ,
'view': ,
'views': }
Module zope.tales.expressions, line 217, in __call__
Module Products.PageTemplates.Expressions, line 127, in _eval
Module zope.tales.expressions, line 124, in _eval
Module Products.PageTemplates.Expressions, line 76, in
boboAwareZopeTraverse
Module OFS.Traversable, line 312, in restrictedTraverse
Module OFS.Traversable, line 247, in unrestrictedTraverse
- __traceback_info__: ([], 'records')
Unauthorized: You are not allowed to access 'records' in this context
>
/Users/optilude/.buildout/eggs/Zope2-2.12.1-py2.6-macosx-10.6-i386.egg/OFS/Traversable.py(247)unrestrictedTraverse()
Martin
--
Author
