[ckan-dev] Datastore & filestore via API

[Michele Barbera]

Hi Sean,
thanks for the useful hints!

First thing I cleaned the db and started from scratch. While using paster
to reinitialize, add users, etc, I keep getting this error over and over:

File "/home/ckan/pyenv/src/ckan/ckan/lib/activity.py", line 44, in
before_commit
    revision = session.revision
AttributeError: 'Session' object has no attribute 'revision'

Having seen it before, I suspect this is somehow related to not being able
to upload.
Is it possible? Any pointer for solving this?

Best,
michele


2012/8/13 Sean Hammond <sean.hammond at okfn.org>

> This is the logged error when I try to post a file to the filestore with
>> ckan.add_package_resource
>> (it creates the resource and its metadata, but the file isn't loaded
>> anywhere):
>>
>> 2012-08-08 15:52:35,186 DEBUG [pylons.controllers.core] Looking for
>> u'upload_handle' method to handle the request
>> 2012-08-08 15:52:35,187 DEBUG [pylons.controllers.core] Calling
>> 'upload_handle' method with keyword args: **{}
>> 2012-08-08 15:52:35,194 DEBUG [pylons.controllers.util] Aborting
>> request, status: 401, detail: '', headers: None, comment: None
>> 2012-08-08 15:52:35,194 DEBUG [pylons.controllers.core] 'upload_handle'
>> method raised HTTPException: HTTPUnauthorized (code: 401)
>> Traceback (most recent call last):
>>    File
>> "/home/ckan/pyenv/local/lib/**python2.7/site-packages/**
>> pylons/controllers/core.py",
>> line 107, in _inspect_call
>>      result = self._perform_call(func, args)
>>    File
>> "/home/ckan/pyenv/local/lib/**python2.7/site-packages/**
>> pylons/controllers/core.py",
>> line 60, in _perform_call
>>      return func(**args)
>>    File "/home/ckan/pyenv/src/ckan/**ckan/controllers/storage.py", line
>> 133, in upload_handle
>>      authorize('POST', BUCKET, label, c.userobj, self.ofs)
>>    File "/home/ckan/pyenv/src/ckan/**ckan/controllers/storage.py", line
>> 99, in authorize
>>      abort(401)
>>    File "/home/ckan/pyenv/src/ckan/**ckan/lib/base.py", line 48, in abort
>>      comment=comment)
>>    File
>> "/home/ckan/pyenv/local/lib/**python2.7/site-packages/**
>> pylons/controllers/util.py",
>> line 196, in abort
>>      raise exc.exception
>> HTTPUnauthorized: This server could not verify that you are authorized
>> to access the document you requested. Either you supplied the wrong
>> credentials (e.g., bad password), or your browser does not understand
>> how to supply the credentials required.
>>
>
> I'm having a different problem with uploading files using ckanclient, so I
> can't test things, but here's a guess:
>
> This looks like the user whose API key you're supplying is not authorized
> to upload files to the dataset you're trying to upload to.
>
> If you do `paster roles` in the terminal, it'll print out a list of roles
> and a list or rights for each role, like this:
>
> editor              read-site, read-user, create-user, edit,
> create-package, create-group, create-authorization-group, read, file-upload
> anon_editor         edit, create-package, create-user, read-user,
> read-site, read, file-upload
> reader              read-site, read-user, create-user, read
>
> As you can see in my example, the editor and anon_editor have the
> file-upload right.
>
> Now if you do `paster rights` it'll print all the roles that each user has
> for each object. The logged_in user is a user whose rights apply to anyone
> who is logged in (or supplies an API key with their API post):
>
> paster rights | grep logged_in
>
> User logged_in -> is editor on -> Package my-dataset
> User logged_in -> is editor on -> Package warandpeace
> User logged_in -> is reader on -> Group david
> User logged_in -> is editor on -> System system
> User logged_in -> is reader on -> Group roger
> User logged_in -> is editor on -> Package annakarenina
>
> In my case, since the logged_in user has the editor role for my-dataset,
> warandpeace and annakarenina, and the editor role includes the file-upload
> right, any logged in user should be authorized to upload files to those
> datasets.
>
> I can also do:
>
> paster rights | grep seanh
>
> to see what specific rights my user account has.
>
> You can find the documentation for all this rights and roles stuff here:
>
> http://docs.ckan.org/en/ckan-**1.7.1/authorization.html<http://docs.ckan.org/en/ckan-1.7.1/authorization.html>
>
>
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