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This project implements a C shared library with a public API to validate Kopano Konnect tokens (JSON Web Tokens).

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Kopano OpenID Connection validation library

This project implements a C shared library with a public API to validate Kopano Konnect tokens (JSON Web Tokens).

In the python subdirectory a CPython module is available which makes all the functions from the C shared library usable from Python.

Also this project can be used directly from Go as an importable module.

Compiling

Make sure you have Go 1.13 or later installed. This project uses Go modules.

As this is a C library, it is furthermore assumed that there is a working C compiler toolchain in your path which includes autoconf and make.

git clone <THIS-PROJECT> libkcoidc
cd libkcoidc
./bootstrap.sh
./configure
make

This will produce the compiled library .so and the matching C header file in the ./.libs directory.

Environment variables

Environment variable Description
KCOIDC_DEBUG When set, libkcoidc will print debug info to stdout

Compile python module

The Python module supports Python 3 and Python 2. By default it compiles with whatever Python in your path as python3, python or python2 whichever is found first. Use the PYTHON environment variable to compile for a specific Python.

PYTHON=python3 make python

Use a Go module

import "stash.kopano.io/kc/libkcoidc"

provider, err := kcoidc.NewProvider(nil, nil, false)

Errors

The library returns error codes in the form of integer values. Please see errors.go for a list.

Examples

This project contains C example applications in the examples folder which can be used to test the library form the commandline.

export TOKEN_VALUE='eyJhbGciOiJSUzI1NiIsImtpZCI6ImRlZmF1bHQiLCJ0eXAiOiJKV1QifQ.eyJrYy5pc0FjY2Vzc1Rva2VuIjp0cnVlLCJrYy5hdXRob3JpemVkU2NvcGVzIjpbIm9wZW5pZCIsInByb2ZpbGUiLCJlbWFpbCJdLCJhdWQiOiJwbGF5Z3JvdW5kLXRydXN0ZWQuanMiLCJleHAiOjE1MTYyOTEzMTEsImlhdCI6MTUxNjI5MDcxMSwiaXNzIjoiaHR0cHM6Ly9tb3NlNDo4NDQzIiwic3ViIjoidWlkPXVzZXIxLG91PXVzZXJzLGRjPWZhcm1lcixkYz1sYW4iLCJrYy5pZGVudGl0eSI6eyJrYy5pLmRuIjoiSm9uYXMgQnJla2tlIiwia2MuaS51biI6InVzZXIxIn19.A28u8R_Euv492qVsIEub5836qo3wzinM8up78vFVEZ1o48PA7-7LrNqJ14EfC_Me-vd2QrW6GtofScSreLUrnqTACYnG6G7R3RVJhCjiuMd6eOFnLAjLl-2ubGa8DYHTK4k9p_Ynuv06AEvCqlplqtK5Mlg0OIbLTxfKxyg77quH6OA0MUbvndKG5t1S9ADj3v39OlSzdpnvSV8LKs7soCtXfotR6Bg8xSXdBI-tNhrjSbzCI2BaghVSdaRbQkcTBe3W5KimaBjbBpTIH74ViFJYzIGOMmGKr__CH4KYn_F-r5ULyVE7m4Qn4K6wqt17TXR3xG6T7Hhs19xVvzoGKg'
make examples && KCOIDC_DEBUG= bin/validate-c 'https://mose4:8443' "$TOKEN_VALUE" && echo 'yay' || echo 'nay'

First parameter of the validate example binary is the full qualified OpenID Connect Issuer Identifier which is usually a https:// URL without path. The second parameter is a string value which will be used as token. So any encoded JWT can be passed here.

Similarly there is also a simple C++ benchmark.

make examples && KCOIDC_DEBUG= bin/benchmark-cpp 'https://mose4:8443' "$TOKEN_VALUE" && echo 'yay' || echo 'nay'
> Info : using 8 threads with 100000 runs per thread
> Info : thread 2 started ...
> Info : thread 3 started ...
> Info : thread 5 started ...
> Info : thread 1 started ...
> Info : thread 4 started ...
> Info : thread 6 started ...
> Info : thread 7 started ...
> Info : thread 8 started ...
> Info : thread 1 done:100000 failed:0
> Info : thread 2 done:100000 failed:0
> Info : thread 4 done:100000 failed:0
> Info : thread 3 done:100000 failed:0
> Info : thread 7 done:100000 failed:0
> Info : thread 6 done:100000 failed:0
> Info : thread 8 done:100000 failed:0
> Info : thread 5 done:100000 failed:0
> Time : 19.101s
> Rate : 41882.6 op/s
yay

So on my machine (Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz), this gives around 42000 validations per second with 8 parallel threads.

The same applications are also implemented in Python and Go for your reference/example.

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This project implements a C shared library with a public API to validate Kopano Konnect tokens (JSON Web Tokens).

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