Move the auth handler out of JS. #7

src/http.c

@@ -1030,3 +1030,48 @@ void* tf_http_get_user_data(tf_http_t* http)
 {
 	return http->user_data;
 }
+
+const char* tf_http_get_cookie(const char* cookie_header, const char* name)
+{
+	if (!cookie_header)
+	{
+		return NULL;
+	}
+
+	int name_start = 0;
+	int equals = 0;
+	for (int i = 0; ; i++)
+	{
+		if (cookie_header[i] == '=')
+		{
+			equals = i;
+		}
+		else if (cookie_header[i] == ',' || cookie_header[i] == ';' || cookie_header[i] == '\0')
+		{
+			if (equals > name_start &&
+				strncmp(cookie_header + name_start, name, equals - name_start) == 0 &&
+				(int)strlen(name) == equals - name_start)
+			{
+				int length = i - equals - 1;
+				char* result = tf_malloc(length + 1);
+				memcpy(result, cookie_header + equals + 1, length);
+				result[length] = '\0';
+				return result;
+			}
+
+			if (cookie_header[i] == '\0')
+			{
+				break;
+			}
+			else
+			{
+				name_start = i + 1;
+				while (cookie_header[name_start] == ' ')
+				{
+					name_start++;
+				}
+			}
+		}
+	}
+	return NULL;
+}