Begin work on proxy server

Create a simple server with 3 endpoints:
* /create_session: Create a session and return its identifier.
* /set_transcript: Update a session's transcript.
* /get_transcript: Fetch a session's transcript.

Right now the session ID provides authentication *and* authorization.
There is no public/private ID so you have to trust whoever you share
your ID with.

IDs are long and generated by the server, so it should be somewhat
secure against low-effort hacking.

Other updates:
* Drop whisper_requirements.txt - no longer needed.
* Vendor curl to make it easier to interact with the server.

TODO:
* Fuzz test the server.

1 files changed, 31 insertions, 0 deletions

diff --git a/BrowserSource/Proxy/Utils.h b/BrowserSource/Proxy/Utils.h
new file mode 100644
index 0000000..af5bc65
--- /dev/null
+++ b/BrowserSource/Proxy/Utils.h
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <random>
+#include <string>
+#include <array>
+
+std::string RandomString(std::size_t length) {
+    static const std::array<char, 62> characters{
+        {
+            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
+            'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
+            'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
+            'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+            'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
+            'y', 'z'
+        }
+    };
+
+    std::random_device rd;
+    std::default_random_engine generator(rd());
+    std::uniform_int_distribution<> distribution(0, characters.size() - 1);
+
+    std::string random_string;
+
+    for (std::size_t i = 0; i < length; ++i) {
+        random_string += characters[distribution(generator)];
+    }
+
+    return random_string;
+}