martinabrahams’s gists

martinabrahams / Gravatar.cs

Last active August 16, 2021 12:15

Simple C# method to create the hash of the email address and return Gravatar image URL for a supplied email address. As per official documentation - https://en.gravatar.com/site/implement/images/

	public static string GetGravatarImageUrl(string emailAddress)
	{
	// Create MD5 Hash of email address
	var md5 = System.Security.Cryptography.MD5.Create();
	byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(emailAddress.Trim().ToLower());
	byte[] hash = md5.ComputeHash(inputBytes);

	// Create lower-case hex string
	var sb = new System.Text.StringBuilder();
	for (int i = 0; i < hash.Length; i++)

martinabrahams / GenerateUmbracoSitemap.cs

Created March 23, 2016 01:13

Generate Umbraco Sitemap with HREF Lang tags

	public static byte[] GenerateSiteMap(IPublishedContent model)
	{
	var sites = model.Parent.Children.Where(x => x.DocumentTypeAlias == "HomePage" \|\| x.DocumentTypeAlias == "SatelliteHomePage");

	var baseUrl = string.Format("{0}://{1}", HttpContext.Current.Request.IsSecureConnection ? "https" : "http", HttpContext.Current.Request.Url.Host);

	var siteMap = new XmlSiteMap();

	foreach (var homePage in sites)
	{

martinabrahams / CreateElmahAzureTable.sql

Created March 28, 2016 00:45

Creates Microsoft Azure friendly ELMAH Table with clustered index. Credit http://stackoverflow.com/questions/15228112/mvc-elmah-and-sql-azure

	--~Changing index [dbo].[ELMAH_Error].PK_ELMAH_Error to a clustered index. You may want to pick a different index to cluster on.
	SET ANSI_NULLS ON
	SET QUOTED_IDENTIFIER ON
	IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[ELMAH_Error]') AND type in (N'U'))
	BEGIN
	CREATE TABLE [dbo].[ELMAH_Error](
	[ErrorId] [uniqueidentifier] NOT NULL,
	[Application] [nvarchar](60) NOT NULL,
	[Host] [nvarchar](50) NOT NULL,
	[Type] [nvarchar](100) NOT NULL,

martinabrahams / ElmahCustomSqlErrorLog.cs

Created March 28, 2016 01:49

Create a custom SQL error log for ELMAH. Append data stored in HttpContext.Items to log entries to provide critical debugging info.

	using Elmah;
	using System;
	using System.Collections;
	using System.Text;

	namespace MyProject
	{
	public class ElmahCustomSqlErrorLog : SqlErrorLog
	{
	public ElmahCustomSqlErrorLog(IDictionary config) : base(config) { }

martinabrahams / RobotsTxtHandler.cs

Last active July 29, 2016 01:55

Simple robots.txt handler to cater for multiple deploy environments. This example stores the a "build environment" variable in the web.config AppSettings and the handler reads this setting and serves either the production or non-production (dev) physical text file from the file system.

	using System.Web;
	using System.Web.Routing;
	using System.Configuration;

	namespace MyWebsite.Infrastructure
	{
	public class RobotsTxtHandler : IRouteHandler
	{
	public IHttpHandler GetHttpHandler(RequestContext requestContext)
	{

martinabrahams / gist:3646236ed8d978bbfa16a362d95e752d

Created September 12, 2017 06:56 — forked from mediavrog/gist:49c4f809dffea4e00738a7f5e3bbfa59

CORS in Google Cloud Functions for Firebase

	const cors = require('cors')({origin: true});

	exports.sample = functions.https.onRequest((req, res) => {
	cors(req, res, () => {
	res.send('Passed.');
	});
	});

martinabrahams / distinct.ts

Created September 27, 2017 02:37

Get distinct items in array in TypeScript - source https://stackoverflow.com/a/45886147/6732882

Array.from(new Set(yourArray.map((item: any) => item.id)))

martinabrahams / appveyor-ebs.yml

Last active April 9, 2018 00:23

Build dotnet core 2 project and package as Elastic Beanstalk artifact

	image: Visual Studio 2017

	before_build:
	- dotnet restore

	build_script:
	# use dotnet CLI to publish to subfolder named site
	- dotnet publish -o site

	after_build:

martinabrahams / datalogger_smoothing.ino

Created January 6, 2019 05:44

Arduino sketch (C) to take x sensors and plot them with smoothing. For home made throttle body balancer.

	// number of sensors
	const int sensors = 4;

	// number of frames to smooth
	const int smoothing = 5;

	const int minVoltage = 950;
	const int maxVoltage = 1050;

	// 2d array to store historic data for all sensors

martinabrahams / wait-for-cloudformation.sh

Created December 20, 2021 05:54

This script can be used to hold up a deploy pipeline after a CloudFormation deploy has taken place. This will handle both UPDATE and CREATE events, currently the AWS CLI doesn't support this.

	#!/bin/bash

	STACK_NAME=my-stack-name
	UPDATING=1

	while [ "$UPDATING" -ne 0 ]
	do
	stack_status=$(aws cloudformation describe-stacks --stack-name ${STACK_NAME} \| jq -r --arg STACK "$STACK_NAME" '[.Stacks[]\|select(.StackName==$STACK)][0].StackStatus')

	if [[ "$stack_status" == "PROCESSING_UPDATE" \|\| "$stack_status" == "PROCESSING_CREATE" ]]; then

Martin Abrahams martinabrahams