[python] add (partial) hashlib externs

std/python/lib/Hashlib.hx

@@ -0,0 +1,104 @@
+/*
+ * 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 python.lib;
+
+import python.Bytes;
+import python.Set;
+
+@:pythonImport("hashlib")
+extern class Hashlib {
+	/**
+		A set containing the names of the hash algorithms guaranteed to be supported by this module on all platforms.
+		Note that ‘md5’ is in this list despite some upstream vendors offering an odd “FIPS compliant” Python build that excludes it.
+	**/
+	static var algorithms_guaranteed(default,null):Set<String>;
+	/**
+		A set containing the names of the hash algorithms that are available in the running Python interpreter.
+		These names will be recognized when passed to new(). algorithms_guaranteed will always be a subset.
+		The same algorithm may appear multiple times in this set under different names (thanks to OpenSSL).
+	**/
+	static var algorithms_available(default,null):Set<String>;
+
+	/**
+		A generic constructor that takes the string name of the desired algorithm as its first parameter.
+		It also exists to allow access to the above listed hashes as well as any other algorithms that your OpenSSL library may offer.
+		The named constructors are much faster than new() and should be preferred.
+	**/
+	@:native("new")
+	static function new_(name:String, ?data:Bytes):HashlibHash;
+
+	static function sha1():HashlibHash;
+	static function sha224():HashlibHash;
+	static function sha256():HashlibHash;
+	static function sha384():HashlibHash;
+	static function sha512():HashlibHash;
+	static function blake2b():HashlibHash;
+	static function blake2s():HashlibHash;
+	static function md5():HashlibHash;
+	static function sha3_224():HashlibHash;
+	static function sha3_256():HashlibHash;
+	static function sha3_384():HashlibHash;
+	static function sha3_512():HashlibHash;
+	static function shake_128():HashlibHash;
+	static function shake_256():HashlibHash;
+}
+
+extern class HashlibHash {
+	/**
+		The size of the resulting hash in bytes.
+	**/
+	var digest_size(default,null):Int;
+
+	/**
+		The internal block size of the hash algorithm in bytes.
+	**/
+	var block_size(default,null):Int;
+
+	/**
+		The canonical name of this hash, always lowercase and always suitable as a parameter to new() to create another hash of this type.
+	**/
+	var name:String;
+
+	/**
+		Update the hash object with the object arg, which must be interpretable as a buffer of bytes.
+		Repeated calls are equivalent to a single call with the concatenation of all the arguments: m.update(a); m.update(b) is equivalent to m.update(a+b).
+	**/
+	function update(a:Bytes):Void;
+
+	/**
+		Return the digest of the data passed to the update() method so far.
+		This is a bytes object of size digest_size which may contain bytes in the whole range from 0 to 255.
+	**/
+	function digest():Bytes;
+
+	/**
+		Like digest() except the digest is returned as a string object of double length, containing only hexadecimal digits.
+		This may be used to exchange the value safely in email or other non-binary environments.
+	**/
+	function hexdigest():String;
+
+	/**
+		Return a copy (“clone”) of the hash object.
+		This can be used to efficiently compute the digests of data sharing a common initial substring.
+	**/
+	function copy():HashlibHash;
+}