This uses the repository module to create an app that
* generates everything from scratch
* serves metadata and targets from memory
* simulates a live repository by adding new targets every few seconds
Signed-off-by: Jussi Kukkonen <jkukkonen@google.com>
Generate keys for all roles in one place and rename to
better distinguish delegating targets key from bins key.
Signed-off-by: Lukas Puehringer <lukas.puehringer@nyu.edu>
If we have a goal of making metadata that can just be served to clients,
then these (and the parent metadata) should have versioned filenames.
Change the file names of the delegated files in the
hashed_bin_delegation.py to versioned.
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
Add a basic example script showing all features of the succinct hash bin
delegations and the available API calls of SuccinctRoles.
The explanations are used to promote the usage of succinct hash bin
delegations by explaining it well enough so our users can understand
the API limitations and how to use them and at the same time I tried not
going into too many details of the SuccinctRoles math as its
implementation is inside tuf/api/metadata.py and there there are
explanations about that.
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
We no longer need or use SPEC_VERSION variable defined in the
begging of the script.
Additionally, I decided to add a small addition to the "roles"
type annotation as that gives better context to the syntax highlighter
of VS code.
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
Here is the list of all breaking API changes:
1) The "role" and "key" arguments in "Root.add_key()" are in reverse
order - "key" becomes first and "role" second.
2) "Root.remove_key()" has been renamed to "Root.revoke_key()".
3) The "role" and "keyid" arguments in "Root.revoke_key()" are in
reverse order - "keyid" becomes first and "role" second.
4) The "role" and "key" arguments in "Targets.add_key()" are in reverse
order - "key" becomes first and "role" second.
5) "Targets.remove_key()" has been renamed to "Targets.revoke_key()".
6) The "role" and "keyid" arguments in "Targets.revoke_key()" are in
reverse order - "keyid" becomes first and "role" second.
7) In both methods "Targets.add_key()" and "Targets.revoke_key()" the
"role" argument becomes an optional with a default value of None.
Those changes are made in an effort to make those methods logical
for both cases when standard roles and succinct_roles are used.
The "Root" API change was done in order to preserve naming and argument
order consistency with "Targets" API.
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
This commit contains 2 API changes in "Delegations" class from
tuf/api/metadata.py:
1. roles argment is made optional
2. unrecognized_fields argument becomes the 4-th rather than the 3-rd
as it used to be
In this commit, I add support for succinct_roles roles inside
Delegations class. This change is related to TAP 15 proposal.
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
Fetcher interface should only raise DownloadErrors,
regardless of the implementation.
* Make sure fetch() wraps non-DownloadError errors in a DownloadError
* Make the abstract function private _fetch()
* Try to be more consistent in doscstrings
This now makes the example client more sensible (when server does not
respond):
$ ./client_example.py download qwerty
...
Failed to download target qwerty: Failed to download url http://127.0.0.1:8000/metadata/2.root.json
(here the latter part of the error string comes from DownloadError
raised by FetcherInterface.fetch())
Signed-off-by: Jussi Kukkonen <jkukkonen@vmware.com>
Rephrase deprecation info in repo_example modules doc headers
to reflect that the deprecation has happened.
Signed-off-by: Lukas Puehringer <lukas.puehringer@nyu.edu>
After we drop support for python3.6 we can relly that dictionaries
preserve the insertion order:
https://docs.python.org/3.7/whatsnew/3.7.html
This means we can replace the usage of OrderedDict with a standard
dictionaries.
Something we have to keep in mind is that even thought the insertion
order is preserved the equality comparison for normal dicts is
insensitive for normal dicts compared to OrderedDict
For example:
>>> OrderedDict([(1,1), (2,2)]) == OrderedDict([(2,2), (1,1)])
False
>>> dict([(1,1), (2,2)]) == dict([(2,2), (1,1)])
True
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
Add tuf/api/exceptions.py for exceptions in the new code.
I copied the exceptions from tuf/exceptions.py with a few important
decisions:
1. I only added the exceptions that are used in the new code
2. I removed the general "Error" class as we can directly inherit
Exceptions
3. I tried grouping the exceptions by relevance
4. I removed the second argument "UnsignedMetadataError" as it's only
kept for backward compatibility and is not used
5. I tried following the new code style guidelines and linted the file
with our linters.
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
This commit adds to the RTD the links references to source code
examples.
The examples are added to TUF ngclient Updater, Metadata and API
reference.
includes a seed for examples/README.md
Signed-off-by: Kairo de Araujo <kdearaujo@vmware.com>
metadata_dir matches metadata_base_url better.
This is an API break for anyone using named arguments.
Fixes#1638
Signed-off-by: Jussi Kukkonen <jkukkonen@vmware.com>
- Simplify README and better keywords
- Fix the verbosity
- Better docstrings
- Client flow for init and main are clear
Signed-off-by: Kairo de Araujo <kdearaujo@vmware.com>
Using ``print`` for high-level client output
Option to see ``tuf.ngclient`` logging output
Update the README.
Signed-off-by: Kairo de Araujo <kdearaujo@vmware.com>
- Added the lint to examples
- README format moved from Restructuredtext to Markdown
- Removed the [INFO] and [ERROR] from output, to avoid confundint with
logging structure
Signed-off-by: Kairo de Araujo <kdearaujo@vmware.com>
It is a simple example of TUF ngclient implementation.
This example contains a README.rst that is a tutorial/how-to-use
this simple client using static test data from TUF repository.
The code aims to be straightforward implementation, using basic
concepts from Python and Command Line Interface.
This is part of theupdateframework#1518
Signed-off-by: Kairo de Araujo <kdearaujo@vmware.com>
As 'repository_tool' and 'repository_lib' are being deprecated,
hash bin delegation interfaces are no longer available in this
implementation. The example code in this file demonstrates how to
easily implement those interfaces, and how to use them together
with the TUF metadata API, to perform hash bin delegation.
Note, the hash bin delegation logic in this example is largely
copied from repository_{lib, tool}, and modernized and simplified
for this purpose.
Signed-off-by: Lukas Puehringer <lukas.puehringer@nyu.edu>
The examples folder currently contains a repository example and it's
good if we start linting its content and as a result add type
annotations.
Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
As 'repository_tool' and 'repository_lib' are being deprecated,
repository metadata must to be created and maintained manually
using the low-level Metadata API. The added example code shall
serve as temporary replacement until a new repository tool is
available.
The sample code contains the following repo workflows:
- creation of top-level metadata
- target file handling
- consistent snapshots
- key management
- top-level delegation and signing thresholds
- target delegation
- in-band and out-of-band metadata signing
- writing and reading metadata files
- root key rotation
Co-authored-by: Teodora Sechkova <tsechkova@vmware.com>
Co-authored-by: Joshua Lock <jlock@vmware.com>
Co-authored-by: Jussi Kukkonen <jku@goto.fi>
Signed-off-by: Lukas Puehringer <lukas.puehringer@nyu.edu>
Instead of having duplicate metadata in examples/ and tests/repository_data, retain only the metadata in tests/repository_data and link to them from METADATA.md
