Get installation access token (IAT) and restructure code

1 files changed, 37 insertions, 0 deletions

diff --git a/mod/jwt.hxx b/mod/jwt.hxx
new file mode 100644
index 0000000..b0df714
--- /dev/null
+++ b/mod/jwt.hxx
@@ -0,0 +1,37 @@
+#ifndef MOD_JWT_HXX
+#define MOD_JWT_HXX
+
+#include <libbrep/types.hxx>
+#include <libbrep/utility.hxx>
+
+#include <mod/module-options.hxx>
+
+#include <chrono>
+
+namespace brep
+{
+  // Generate a JSON Web Token (JWT), defined in RFC7519.
+  //
+  // A JWT is essentially the token issuer's name along with a number of
+  // claims, signed with a private key.
+  //
+  // Note that only GitHub's requirements are implemented, not the entire JWT
+  // spec; see the source file for details.
+  //
+  // The token expires when the validity period has elapsed.
+  //
+  // The backdate argument specifies the number of seconds to subtract from
+  // the "issued at" time in order to combat potential clock drift (which can
+  // cause the token to be not valid yet).
+  //
+  // Return the token or throw std::system_error in case of an error.
+  //
+  string
+  generate_jwt (const options::openssl_options&,
+                const path& private_key,
+                const string& issuer,
+                const std::chrono::seconds& validity_period,
+                const std::chrono::seconds& backdate = std::chrono::seconds (60));
+}
+
+#endif