cory/tildefriends
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Move some things to C that probably should have never been in JS, especially sha1. Minor refactors, cleanup, and deletes along the way.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4154 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams
2023-01-28 21:59:36 +00:00
parent 48cd08e095
commit 7091b6e6a5
8 changed files with 109 additions and 289 deletions
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103
src/util.js.c
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@ -5,6 +5,8 @@
#include "trace.h"
#include <base64c.h>
#include <openssl/crypto.h>
#include <openssl/sha.h>
#include <picohttpparser.h>
#include <quickjs-libc.h>
#include <uv.h>
@ -15,15 +17,9 @@ static JSValue _util_utf8_encode(JSContext* context, JSValueConst this_val, int
{
size_t length = 0;
const char* value = JS_ToCStringLen(context, &length, argv[0]);
JSValue arrayBuffer = JS_NewArrayBufferCopy(context, (const uint8_t*)value, length);
JSValue global = JS_GetGlobalObject(context);
JSValue constructor = JS_GetPropertyStr(context, global, "Uint8Array");
JS_FreeValue(context, global);
JSValue typedArray = JS_CallConstructor(context, constructor, 1, &arrayBuffer);
JS_FreeValue(context, constructor);
JS_FreeValue(context, arrayBuffer);
JSValue typed_array = tf_util_new_uint8_array(context, (const uint8_t*)value, length);
JS_FreeCString(context, value);
return typedArray;
return typed_array;
}
static JSValue _util_utf8_decode(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
@ -70,17 +66,29 @@ static JSValue _util_base64_encode(JSContext* context, JSValueConst this_val, in
{
JSValue result = JS_UNDEFINED;
size_t length = 0;
const char* value = JS_ToCStringLen(context, &length, argv[0]);
char* encoded = tf_malloc(length * 4);
int r = base64c_encode((const uint8_t*)value, length, (uint8_t*)encoded, length * 4);
if (r >= 0)
uint8_t* array = tf_util_try_get_array_buffer(context, &length, argv[0]);
if (array)
{
result = JS_NewStringLen(context, encoded, r);
char* encoded = tf_malloc(length * 4);
int r = base64c_encode(array, length, (uint8_t*)encoded, length * 4);
if (r >= 0)
{
result = JS_NewStringLen(context, encoded, r);
}
tf_free(encoded);
}
else
{
const char* value = JS_ToCStringLen(context, &length, argv[0]);
char* encoded = tf_malloc(length * 4);
int r = base64c_encode((const uint8_t*)value, length, (uint8_t*)encoded, length * 4);
if (r >= 0)
{
result = JS_NewStringLen(context, encoded, r);
}
tf_free(encoded);
JS_FreeCString(context, value);
}
tf_free(encoded);
JS_FreeCString(context, value);
return result;
}
@ -291,6 +299,65 @@ static JSValue _util_parseHttp(JSContext* context, JSValueConst this_val, int ar
}
static JSValue _util_sha1_digest(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
size_t length = 0;
const char* value = JS_ToCStringLen(context, &length, argv[0]);
unsigned char digest[SHA_DIGEST_LENGTH] = { 0 };
SHA1((const unsigned char*)value, length, digest);
return JS_NewArrayBufferCopy(context, digest, sizeof(digest));
}
JSValue tf_util_new_uint8_array(JSContext* context, const uint8_t* data, size_t size)
{
JSValue array_buffer = JS_NewArrayBufferCopy(context, data, size);
JSValue global = JS_GetGlobalObject(context);
JSValue constructor = JS_GetPropertyStr(context, global, "Uint8Array");
JSValue result = JS_CallConstructor(context, constructor, 1, &array_buffer);
JS_FreeValue(context, constructor);
JS_FreeValue(context, global);
JS_FreeValue(context, array_buffer);
return result;
}
static JSValue _util_mask_bytes(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
JSValue result = JS_UNDEFINED;
uint32_t mask = 0;
JS_ToUint32(context, &mask, argv[1]);
uint64_t double_mask = ((uint64_t)mask << 32) | mask;
size_t offset = 0;
size_t length = 0;
size_t element_size = 0;
JSValue buffer = tf_util_try_get_typed_array_buffer(context, argv[0], &offset, &length, &element_size);
if (!JS_IsException(buffer))
{
size_t size = 0;
const uint8_t* array = tf_util_try_get_array_buffer(context, &size, buffer);
if (array)
{
uint8_t* copy = tf_malloc(size);
size_t i = 0;
for (; i + sizeof(double_mask) < size; i += sizeof(double_mask))
{
((uint64_t*)copy)[i / sizeof(double_mask)] = ((const uint64_t*)array)[i / sizeof(double_mask)] ^ double_mask;
}
for (; i + sizeof(mask) < size; i += sizeof(mask))
{
((uint32_t*)copy)[i / sizeof(mask)] = ((const uint32_t*)array)[i / sizeof(mask)] ^ mask;
}
for (; i < size; i++)
{
copy[i] = array[i] ^ ((mask >> (8 * (i % 4))) & 0xff);
}
result = tf_util_new_uint8_array(context, copy, size);
tf_free(copy);
}
}
return result;
}
void tf_util_register(JSContext* context)
{
JSValue global = JS_GetGlobalObject(context);
@ -301,6 +368,8 @@ void tf_util_register(JSContext* context)
JS_SetPropertyStr(context, global, "print", JS_NewCFunction(context, _util_print, "print", 1));
JS_SetPropertyStr(context, global, "setTimeout", JS_NewCFunction(context, _util_setTimeout, "setTimeout", 2));
JS_SetPropertyStr(context, global, "parseHttp", JS_NewCFunction(context, _util_parseHttp, "parseHttp", 2));
JS_SetPropertyStr(context, global, "sha1Digest", JS_NewCFunction(context, _util_sha1_digest, "sha1Digest", 1));
JS_SetPropertyStr(context, global, "maskBytes", JS_NewCFunction(context, _util_mask_bytes, "maskBytes", 2));
JS_FreeValue(context, global);
}