From 021f025cb039011ad07158b0d94f1b430a409e49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?louiz=E2=80=99?= <louiz@louiz.org>
Date: Wed, 26 Oct 2016 21:19:53 +0200
Subject: Refactor the sha1 digest into its own function, and do not use
 sprintf

---
 louloulibs/xmpp/auth.cpp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 louloulibs/xmpp/auth.cpp

(limited to 'louloulibs/xmpp/auth.cpp')

diff --git a/louloulibs/xmpp/auth.cpp b/louloulibs/xmpp/auth.cpp
new file mode 100644
index 0000000..c20f95d
--- /dev/null
+++ b/louloulibs/xmpp/auth.cpp
@@ -0,0 +1,21 @@
+#include <xmpp/auth.hpp>
+
+#include <utils/sha1.hpp>
+
+#include <iomanip>
+#include <sstream>
+
+std::string get_handshake_digest(const std::string& stream_id, const std::string& secret)
+{
+  sha1nfo sha1;
+  sha1_init(&sha1);
+  sha1_write(&sha1, stream_id.data(), stream_id.size());
+  sha1_write(&sha1, secret.data(), secret.size());
+  const uint8_t* result = sha1_result(&sha1);
+
+  std::ostringstream digest;
+  for (int i = 0; i < HASH_LENGTH; i++)
+    digest << std::hex << std::setfill('0') << std::setw(2) << static_cast<int>(result[i]);
+
+  return digest.str();
+}
-- 
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