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SciTokens C++ Library
=====================
This repository implements a minimal library for creating and using SciTokens from C or C++.
[SciTokens](https://scitokens.org) provide a token format for distributed authorization. The
tokens are self-describing, can be verified in a distributed fashion (no need to contact the
issuer to determine if the token is valid). This is convenient for a federated environment where
several otherwise-independent storage endpoints want to delegate trust for an issuer for
managing a storage allocation.
Building
--------
To build the `scitokens-cpp` library, the following dependencies are needed:
- [jwt-cpp] v0.5.0 or later (https://github.com/Thalhammer/jwt-cpp): A header-only C++ library for manipulating
JWTs.
- OpenSSL 1.0 or later.
- `sqlite3`
CMake is used for the build system. To build, from the source directory:
```
mkdir build
cd build
JWT_CPP_DIR=~/path/to/jwt-cpp cmake ..
make
```
Testing
-------
The easiest way to test `scitokens-cpp` is to head to the [SciTokens Demo app](https://demo.scitokens.org)
and copy the generated token. Then, from the build directory:
```
echo "<your_token_here>" | ./scitokens-verify
```
Replace the given token above with the fresh one you just generated; using the above token should give an expired
token error. The token must be provided via standard input (stdin).
Instructions for Generating a Release
-------------------------------------
SciTokens-cpp includes a submodule, jwt-cpp. Therefore, to create a release, you have to include the submodule into the release.
VER=0.3.3 # for example
git archive --prefix "scitokens-cpp-$VER/" -o "scitokens-cpp-$VER.tar" v$VER
git submodule update --init
git submodule foreach --recursive "git archive --prefix=scitokens-cpp-$VER/\$path/ --output=\$sha1.tar HEAD && tar --concatenate --file=$(pwd)/scitokens-cpp-$VER.tar \$sha1.tar && rm \$sha1.tar"
gzip "scitokens-cpp-$VER.tar"
Before tagging a new release, make sure that the RPM spec file has an updated
version number and an associated changelog entry.
Also, make sure that the ``debian/changelog`` has an entry that matches the
RPM changelog entry.
This package is built on the
[cvmfs-config OpenSUSE Build Service](https://build.opensuse.org/project/show/home:cvmfs:contrib).
In order to support that run `debian/obsupdate.sh` whenever the version
or release number is changed in `rpm/scitokens-cpp.spec`, and commit the
generated `debian/scitokens-cpp.dsc` before tagging the release.
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