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ws-handshake: Use own base64 and SHA1 implementations

pull/100/head
Andri Yngvason 2023-09-09 23:29:48 +00:00
parent a02f578f9e
commit 98f6930580
2 changed files with 12 additions and 12 deletions
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1
meson.build
View File

@ -95,6 +95,7 @@ sources = [
'src/encoder.c',
'src/cursor.c',
'src/logging.c',
'src/base64.c',
]
dependencies = [

23
src/ws-handshake.c
View File

@ -1,8 +1,7 @@
#include "websocket.h"
#include "http.h"
#include <nettle/sha1.h>
#include <nettle/base64.h>
#include "crypto.h"
#include "base64.h"
#include <stdint.h>
#include <stdio.h>
@ -61,16 +60,16 @@ ssize_t ws_handshake(char* output, size_t output_maxlen, const char* input)
if (have_versions && !strstr(versions, ",13,"))
goto failure;
struct sha1_ctx ctx;
sha1_init(&ctx);
sha1_update(&ctx, strlen(challenge), (const uint8_t*)challenge);
sha1_update(&ctx, strlen(magic_uuid), (const uint8_t*)magic_uuid);
uint8_t hash[20];
crypto_hash_many(hash, sizeof(hash), CRYPTO_HASH_SHA1,
(struct crypto_data_entry[]){
{ (uint8_t*)challenge, strlen(challenge) },
{ (uint8_t*)magic_uuid, strlen(magic_uuid) },
{}
});
uint8_t hash[SHA1_DIGEST_SIZE];
sha1_digest(&ctx, sizeof(hash), hash);
char response[BASE64_ENCODE_RAW_LENGTH(SHA1_DIGEST_SIZE) + 1] = {};
base64_encode_raw(response, SHA1_DIGEST_SIZE, hash);
char response[BASE64_ENCODED_SIZE(sizeof(hash))] = {};
base64_encode(response, hash, sizeof(hash));
size_t len = snprintf(output, output_maxlen,
"HTTP/1.1 101 Switching Protocols\r\n"