yetone

JavaScript Crypto Libraries

I start with a list and plan to create a comparison table.

WebCryptoAPI

http://www.w3.org/TR/WebCryptoAPI/

This specification describes a JavaScript API for performing basic cryptographic operations in web applications, such as hashing, signature generation and verification, and encryption and decryption. Additionally, it describes an API for applications to generate and/or manage the keying material necessary to perform these operations. Uses for this API range from user or service authentication, document or code signing, and the confidentiality and integrity of communications.

yetone

#!/usr/bin/env bash
# script:  watch
# author:  Mike Smullin <mike@smullindesign.com>
# license: GPLv3
# description:
#   watches the given path for changes
#   and executes a given command when changes occur
# usage:
#   watch <path> <cmd...>
#

yetone

/**
 * 格式化时间戳为人性化的时间
 * @param {String} publishTime 时间戳
 * @return {String} 人性化时间
 */
 
function formatTime(publishTime) {
    var d_minutes, d_hours, d_days;
    var timeNow = parseInt(new Date().getTime() / 1000, 10);
    var d;

yetone

import Foundation
import objc
import AppKit
import sys

NSUserNotification = objc.lookUpClass('NSUserNotification')
NSUserNotificationCenter = objc.lookUpClass('NSUserNotificationCenter')

def notify(title, subtitle, info_text, delay=0, sound=False, userInfo={}):
	notification = NSUserNotification.alloc().init()

yetone

Virtual DOM and diffing algorithm

There was a [great article][1] about how react implements it's virtual DOM. There are some really interesting ideas in there but they are deeply buried in the implementation of the React framework.

However, it's possible to implement just the virtual DOM and diff algorithm on it's own as a set of independent modules.

yetone

#!/usr/bin/env python

import sys
import json
import base64
import urllib2

liveURL = 'https://buy.itunes.apple.com/verifyReceipt'
sandboxURL = 'https://sandbox.itunes.apple.com/verifyReceipt'

yetone

def init_db_env():
    import sys, os
    os.environ["PYTHON_EGG_CACHE"] = "/tmp"
    os.environ['PYTHONPATH']= '/home/rex/local/lib/python2.6/site-packages'
    os.environ["LD_LIBRARY_PATH"] = '/home/rex/local/lib:/usr/lib/'
    sys.path.append('/home/rex/local/lib/python2.6/site-packages')
    sys.path.append('/home/rex/local/lib')
    sys.path.append('/usr/lib/')
    from ctypes import cdll
    cdll.LoadLibrary("/usr/lib/libmysqlclient.so.18")

yetone

# found this from Armin R. on Twitter, what a beautiful gem ;)

import ctypes
from types import DictProxyType, MethodType

# figure out side of _Py_ssize_t
if hasattr(ctypes.pythonapi, 'Py_InitModule4_64'):
    _Py_ssize_t = ctypes.c_int64
else:
    _Py_ssize_t = ctypes.c_int

yetone

Sketch 43 files JSON types

Based on the example file from the announcement blog post http://sketchplugins.com/d/87-new-file-format-in-sketch-43

type UUID = string // with UUID v4 format

type SketchPositionString = string // '{0.5, 0.67135115527602085}'

type SketchNestedPositionString = string // '{{0, 0}, {75.5, 15}}'

yetone

import json, sys, numpy as np
from scipy import misc, signal
from PIL import Image
infile, outfile, modelpath = sys.argv[1:]
model = json.load(open(modelpath))
im = Image.open(infile).convert("YCbCr")
im = misc.fromimage(im.resize((2*im.size[0], 2*im.size[1]), resample=Image.NEAREST)).astype("float32")
planes = [np.pad(im[:,:,0], len(model), "edge") / 255.0]
for step in model:
    o_planes = [sum([signal.convolve2d(ip, np.float32(kernel), "valid")