[php] use native base64 encode/decode functions (#6681)

* [php] use native base64 encode/decode functions

* [php] support `complement` for Base64 encode/decode

* test haxe.io.Base64

std/php/_std/haxe/crypto/Base64.hx

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C)2005-2017 Haxe Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+package haxe.crypto;
+
+import php.Global;
+import haxe.io.Bytes;
+
+class Base64 {
+
+	public static var CHARS(default,null) = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+	public static var BYTES(default,null) = haxe.io.Bytes.ofString(CHARS);
+
+	public static inline function encode( bytes : Bytes, complement = true ) : String {
+		var result = Global.base64_encode( bytes.toString() );
+		return (complement ? result : Global.rtrim(result, "="));
+	}
+
+	public static inline function decode( str : String, complement = true ) : Bytes {
+		if(!complement) {
+			switch (Global.strlen(str) % 3) {
+				case 1:
+					str += "==";
+				case 2:
+					str += "=";
+				default:
+			}
+		}
+		return Bytes.ofString( Global.base64_decode( str, true ) );
+	}
+}

tests/unit/src/unit/TestMisc.hx

@@ -309,6 +309,16 @@ class TestMisc extends Test {
 	}
 
 	function testBaseCode() {
+		// base64
+		eq("SMOpbGxvdw==", haxe.crypto.Base64.encode(haxe.io.Bytes.ofString("Héllow")));
+		eq("SMOpbGxvdw", haxe.crypto.Base64.encode(haxe.io.Bytes.ofString("Héllow"), false));
+		eq("SMOpbGxv", haxe.crypto.Base64.encode(haxe.io.Bytes.ofString("Héllo")));
+		eq("SMOpbGw=", haxe.crypto.Base64.encode(haxe.io.Bytes.ofString("Héll")));
+		eq("Héllow", haxe.crypto.Base64.decode("SMOpbGxvdw==").toString());
+		eq("Héllow", haxe.crypto.Base64.decode("SMOpbGxvdw", false).toString());
+		eq("Héllo", haxe.crypto.Base64.decode("SMOpbGxv").toString());
+		eq("Héll", haxe.crypto.Base64.decode("SMOpbGw=").toString());
+
 		// alternative base64
 		var b = new haxe.crypto.BaseCode(haxe.io.Bytes.ofString("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-"));
 		eq( b.encodeString("Héllow"), "iceFr6NLtM" );