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@siqin
siqin / gist:4201667
Created December 4, 2012 07:57
Remove Emoji in NSString
// XCode 4.2.1
@implementation NSString(EmojiExtension)
- (NSString*)removeEmoji {
__block NSMutableString* temp = [NSMutableString string];
[self enumerateSubstringsInRange: NSMakeRange(0, [self length]) options:NSStringEnumerationByComposedCharacterSequences usingBlock:
^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop){
@subudeepak
subudeepak / WebSockets.md
Last active November 2, 2022 00:04
The problems and some security implications of websockets - Cross-site WebSockets Scripting (XSWS)

WebSockets - An Introduction

WebSockets is a modern HTML5 standard which makes communication between client and server a lot more simpler than ever. We are all familiar with the technology of sockets. Sockets have been fundamental to network communication for a long time but usually the communication over the browser has been restricted. The general restrictions

  • The server used to have a permanent listener while the client (aka browser) was not designated any fixed listener for a more long term connection. Hence, every communication was restricted to the client demanding and the server responding.
  • This meant that unless the client requested for a particular resource, the server was unable to push such a resource to the client.
  • This was detrimental since the client is then forced to check with the server at regular intervals. This meant a lot of libraries focused on optimizing asynchronous calls and identifying the response of asynchronous calls. Notably t
@jonathanmeaney
jonathanmeaney / Google Books Search.js
Created December 9, 2011 20:05
Using google books rest api to search for books
<script>
function view_books()
{
$.getJSON('https://www.googleapis.com/books/v1/volumes?q=food+allergies&maxResults=5', function(data) {
var items = [];
$.each(data, function(key, val) {
items.push('<li id="' + key + '">' + val + '</li>');
});
@natecook1000
natecook1000 / CalculatorView.swift
Last active June 6, 2022 01:00
An IBInspectable Calculator Construction Set
// CalculatorView.swift
// as seen in http://nshipster.com/ibinspectable-ibdesignable/
//
// (c) 2015 Nate Cook, licensed under the MIT license
/// The alignment for drawing an String inside a bounding rectangle.
enum NCStringAlignment {
case LeftTop
case CenterTop
case RightTop
@armstrongnate
armstrongnate / basic-auth.swift
Created July 20, 2014 21:45
HTTP Basic Authentication using NSURLSession in swift
import Foundation
let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let userPasswordString = "username@gmail.com:password"
let userPasswordData = userPasswordString.dataUsingEncoding(NSUTF8StringEncoding)
let base64EncodedCredential = userPasswordData!.base64EncodedStringWithOptions(nil)
let authString = "Basic \(base64EncodedCredential)"
config.HTTPAdditionalHeaders = ["Authorization" : authString]
let session = NSURLSession(configuration: config)
@werediver
werediver / WiFiSsid.swift
Created July 14, 2016 12:47
Get the connected Wi-Fi network SSID on iOS (in Swift).
import Foundation
import SystemConfiguration.CaptiveNetwork
func getWiFiSsid() -> String? {
var ssid: String?
if let interfaces = CNCopySupportedInterfaces() as NSArray? {
for interface in interfaces {
if let interfaceInfo = CNCopyCurrentNetworkInfo(interface as! CFString) as NSDictionary? {
ssid = interfaceInfo[kCNNetworkInfoKeySSID as String] as? String
break
@matsuda
matsuda / NSData+AES.h
Created February 25, 2014 07:14
Objective-C code for encrypt and decrypt by AES-128 encryption.
/**
http://mythosil.hatenablog.com/entry/20111017/1318873155
http://blog.dealforest.net/2012/03/ios-android-per-aes-crypt-connection/
*/
@interface NSData (AES)
- (NSData *)AES128EncryptedDataWithKey:(NSString *)key;
- (NSData *)AES128DecryptedDataWithKey:(NSString *)key;
- (NSData *)AES128EncryptedDataWithKey:(NSString *)key iv:(NSString *)iv;
@kristopherjohnson
kristopherjohnson / DispatchGroupDemo.swift
Last active May 28, 2021 14:40
Simple demo of dispatch_group_async/dispatch_group_notify/dispatch_group_wait in Swift
import Foundation
let notified = dispatch_semaphore_create(0)
let group = dispatch_group_create()
let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
for n in 0..<20 {
dispatch_group_async(group, queue) {
let timeInterval = Double(arc4random_uniform(1000)) * 0.01
extension PHPhotoLibrary {
typealias PhotoAsset = PHAsset
typealias PhotoAlbum = PHAssetCollection
static func saveImage(image: UIImage, albumName: String, completion: (PHAsset?)->()) {
if let album = self.findAlbum(albumName) {
saveImage(image, album: album, completion: completion)
return
}
@syshen
syshen / gist:c24d127e1adc2783e0e7
Last active June 28, 2020 19:31
Universal framework
######################
# Options
######################
REVEAL_ARCHIVE_IN_FINDER=false
FRAMEWORK_NAME="${PROJECT_NAME}"
SIMULATOR_LIBRARY_PATH="${BUILD_DIR}/${CONFIGURATION}-iphonesimulator/${FRAMEWORK_NAME}.framework"