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@joepie91
joepie91 / random.md
Last active April 10, 2024 18:45
Secure random values (in Node.js)

Not all random values are created equal - for security-related code, you need a specific kind of random value.

A summary of this article, if you don't want to read the entire thing:

  • Don't use Math.random(). There are extremely few cases where Math.random() is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.
  • Don't use crypto.getRandomBytes directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.
  • If you want to generate random tokens or API keys: Use uuid, specifically the uuid.v4() method. Avoid node-uuid - it's not the same package, and doesn't produce reliably secure random values.
  • If you want to generate random numbers in a range: Use random-number-csprng.

You should seriously consider reading the entire article, though - it's

@mynameispj
mynameispj / Props
Created July 24, 2012 14:55
Estimated reading time in PHP, by Brian Cray
Total props to Brian Cray: http://briancray.com/posts/estimated-reading-time-web-design/
@RadGH
RadGH / short-number-format.php
Last active April 9, 2024 11:28
Short Number Formatter for PHP (1000 to 1k; 1m; 1b; 1t)
<?php
// Converts a number into a short version, eg: 1000 -> 1k
// Based on: http://stackoverflow.com/a/4371114
function number_format_short( $n, $precision = 1 ) {
if ($n < 900) {
// 0 - 900
$n_format = number_format($n, $precision);
$suffix = '';
} else if ($n < 900000) {
@ghalusa
ghalusa / youtube_id_regex.php
Created June 20, 2015 23:14
Extract the YouTube Video ID from a URL in PHP
<?php
// Here is a sample of the URLs this regex matches: (there can be more content after the given URL that will be ignored)
// http://youtu.be/dQw4w9WgXcQ
// http://www.youtube.com/embed/dQw4w9WgXcQ
// http://www.youtube.com/watch?v=dQw4w9WgXcQ
// http://www.youtube.com/?v=dQw4w9WgXcQ
// http://www.youtube.com/v/dQw4w9WgXcQ
// http://www.youtube.com/e/dQw4w9WgXcQ
// http://www.youtube.com/user/username#p/u/11/dQw4w9WgXcQ
@michiel
michiel / cors-nginx.conf
Created July 5, 2011 10:41
Wide-open CORS config for nginx
#
# Wide-open CORS config for nginx
#
location / {
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
#
@v0lkan
v0lkan / nginx.conf
Last active April 2, 2024 18:25
Configuring NGINX for Maximum Throughput Under High Concurrency
user web;
# One worker process per CPU core.
worker_processes 8;
# Also set
# /etc/security/limits.conf
# web soft nofile 65535
# web hard nofile 65535
# /etc/default/nginx
@freekmurze
freekmurze / subscriptions.opml
Last active March 1, 2024 14:39
RSS feeds
<?xml version="1.0" encoding="UTF-8"?>
<opml version="1.0">
<head>
<title>Subscriptions - freek@spatie.be</title>
</head>
<body>
<outline text="PHP" title="PHP">
<outline htmlUrl="http://frederickvanbrabant.com" title="frederickvanbrabant.com" xmlUrl="http://frederickvanbrabant.com/feed.xml" type="rss" text="frederickvanbrabant.com"/>
<outline htmlUrl="http://mattallan.org" title="mattallan.org" xmlUrl="http://mattallan.org/feed.xml" type="rss" text="mattallan.org"/>
<outline title="asked.io" xmlUrl="https://asked.io/rss" type="rss" text="asked.io"/>
@muhammadghazali
muhammadghazali / What is server_names_hash_bucket_size.md
Last active February 9, 2024 14:13
Nginx: What is server_names_hash_bucket_size?

Background

While I'm learning how to use Nginx, I was instructed to update the server_names_hash_bucket_size (/etc/nginx/nginx.conf) value from 32 to 64, but I don't understand why should I increase the value to 64.

References

References that have been read so far:

@larrybotha
larrybotha / A.markdown
Last active February 7, 2024 15:20
Fix SVGs not scaling in IE9, IE10, and IE11

Fix SVG in <img> tags not scaling in IE9, IE10, IE11

IE9, IE10, and IE11 don't properly scale SVG files added with img tags when viewBox, width and height attributes are specified. View this codepen on the different browsers.

Image heights will not scale when the images are inside containers narrower than image widths. This can be resolved in 2 ways.

Use sed in bash to remove width and height attributes in SVG files

As per this answer on Stackoverflow, the issue can be resolved by removing just the width and height attributes.

@nicolas-grekas
nicolas-grekas / Advanced-HTTP-en.md
Created June 15, 2011 22:03
Advanced handling of HTTP requests in PHP