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yemster / pt.md
Created November 14, 2022 15:35 — forked from denji/pt.md
Percona Toolkit Examples
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yemster / adequate-template-engine.js
Last active January 28, 2021 21:17
Adequate template engine - Minimalist but entirely more than adequate Js templating engine
/*****************************************
* Usage:
* engine = Adqt.TemplateEngine
* template = 'My name is <% this.name %>'
* hash = { name: 'Yemi' }
*
* compiled = engine.compile(template) // => "var r=[]; r.push("My name is "); r.push( this.name ); return r.join("");"
* engine.render(compiled, hash) // => My name is Yemi
*
* engine.render(compiled, { name: 'Mike' }) // => My name is Mike
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yemster / installing-imagemagick-ec2
Last active November 3, 2020 19:19
Installing or updating ImageMagick on EC2 Linux AMI
# ******************
# *** FYI :: This turned out to be the missing link in the process *****
# Install the devel packages for png, jpg, tiff. these are dependencies of ImageMagick
# Time taken: ~ 3secs
# ******************
sudo yum -y install libpng-devel libjpeg-devel libtiff-devel
# ******************
# Download and Install Imagemagick
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yemster / fb-open-graph.liquid
Last active August 24, 2020 16:02 — forked from chrisjhoughton/fb-open-graph.liquid
Facebook Open Graph meta tags for Shopify. Add this as a snippet called "fb-open-graph.liquid" in your theme, and then add `{% render 'fb-open-graph' %}` to your `theme.liquid` file.
{% if template contains 'product' %}
<meta property="og:type" content="product">
<meta property="og:title" content="{{ product.title | strip_html | escape }}">
<meta property="og:category" content="{{ product.type }}" />
{% for image in product.images limit:3 %}
<meta property="og:image" content="http:{{ image.src | product_img_url: 'master' }}">
<meta property="og:image:secure_url" content="https:{{ image.src | product_img_url: 'master' }}">
{% endfor %}
<meta property="og:price:amount" content="{{ product.price | money_without_currency | stip_html | escape | remove: ',' }}">
<meta property="og:price:currency" content="{{ shop.currency }}">
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yemster / snapshotter.py
Created August 19, 2019 10:34 — forked from nguyendangminh/snapshotter.py
AWS EBS snapshotter
#!/usr/bin/env python
# Shameless copy from qwiklab
import boto.ec2, os, datetime
MAX_SNAPSHOTS = 2 # Number of snapshots to keep
# Connect to EC2 in this region
region = os.environ.get('EC2_REGION')
connection = boto.ec2.connect_to_region(region)
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yemster / gfonts-preview.html
Created August 15, 2019 08:11 — forked from jlogix/gfonts-preview.html
<!DOCTYPE html>
<html>
<head>
<title>Google Fonts Preview</title>
<style>
#preview {
margin: 0 auto;
text-align: center;
width: 80%;
}
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yemster / random-string.js
Last active June 26, 2019 15:46
Random string generator in Javascript / nonce generator
/*
Generate a random string of a given length.
@params:
length: *required* - length of string to generate
kind: *optional* - character set or sets to use for string generation (default: 'aA#')
Available options
'a' => for lowercase alphabets [a-z]
'A' => for uppercase alphabets [A-Z]
'#' => numbers [0-9]
'!' => special character as defined
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yemster / opera-vpn.md
Created October 7, 2017 20:14 — forked from spaze/opera-vpn.md
Opera VPN behind the curtains is just a proxy, here's how it works

When setting up (that's immediately when user enables it in settings) Opera VPN sends few API requests to https://api.surfeasy.com to obtain credentials and proxy IPs, see below, also see The Oprah Proxy.

The browser then talks to a proxy de0.opera-proxy.net (when VPN location is set to Germany), it's IP address can only be resolved from within Opera when VPN is on, it's 185.108.219.42 (or similar, see below). It's an HTTP/S proxy which requires auth.

When loading a page with Opera VPN enabled, the browser sends a lot of requests to de0.opera-proxy.net with Proxy-Authorization request header.

The Proxy-Authorization header decoded: CC68FE24C34B5B2414FB1DC116342EADA7D5C46B:9B9BE3FAE674A33D1820315F4CC94372926C8210B6AEC0B662EC7CAD611D86A3 (that's sha1(device_id):device_password, where device_id and device_password come from the POST /v2/register_device API call, please note that this decoded header is from another Opera installation and thus contains

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yemster / module-boilerplate.js
Created October 5, 2017 15:52
Snippet / boilerplate or starting new modules / library closures. --// Parked here until I find a better home for it
MyModule = MyModule || {}
MyModule.Foo = (function() {
// declare private methods
var _myPrivateMethod = function() {
console.log('\t >>>>> I am a private method call <<<<<<')
}
// expose public methods
return {
myPublicMethod: function(someArgs) {
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yemster / svg-ico-sprite-mixin.scss
Created March 1, 2017 09:39
Automate SVG Sprite Background Image Variations with a SCSS Mixin
/*
Automate SVG Sprite Background Image Variations with a SCSS Mixin
- see egghead.io video: https://egghead.io/lessons/css-automate-svg-sprite-background-image-variations-with-a-scss-mixin
• This utilises a sass mixing to generate the necessary code for the icons within the sprite
*/
$ico-width-default: 3em;
$ico-width-small: 2em;
$icons: plug, star, umbrella;