dvf

I needed a way to have my Django ElasticBeanstalk application automatically redirect HTTP requrests to HTTPS. Rick Christianson wrote a post [1] about how to do this by overwriting the wsgi.conf file with one that was slightly modified to support the HTTP to HTTPS redirect.

Building off the shoulders of giants, I wanted to do the same, but not have to keep a copy of the config file in my local source directory. Christianson even points out in his post that if ElasticBeanstalk ever changes it's template for the wsgi.conf file, those updates would not be overwritten and you wouldn't get their benefits. To get around that problem, I used sed to insert the new lines into the wsgi.conf file.

References

1. http://rickchristianson.wordpress.com/2013/11/02/updating-wsgi-automatically-in-amazon-aws/
2. http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/customize-containers-ec2.html#customize-containers-format-container_commands

dvf

Keybase proof

I hereby claim:

• I am dvf on github.
• I am dvf (https://keybase.io/dvf) on keybase.
• I have a public key ASAQIUnHg-9CdfTLGHPwrnal9t0rVtRrwrR272z-n25APAo

To claim this, I am signing this object:

dvf

Keybase proof

I hereby claim:

• I am dvf on github.
• I am dvf (https://keybase.io/dvf) on keybase.
• I have a public key ASDMxnfzs4Am9pp5c7i38JACvJCMGlWHABqecGuzoGqr3Qo

To claim this, I am signing this object:

dvf

@app.route('/chain', methods=['GET'])
def full_chain():
    response = {
        'chain': blockchain.chain,
        'length': len(blockchain.chain),
    }
    return jsonify(response), 200

dvf

class Blockchain(object):
    def __init__(self):
        self.current_transactions = []
        self.chain = []

    def new_block(self):
        # Creates a new Block in the Blockchain
        pass

    def new_transaction(self):

dvf

import hashlib
import json

from time import time
from uuid import uuid4


class Blockchain(object):
    ...
        

dvf

import hashlib
import json
from textwrap import dedent
from time import time
from uuid import uuid4


class Blockchain(object):
    def __init__(self):
        self.current_transactions = []

dvf

class Blockchain(object):
    ...
    
    def new_transaction(self, sender, recipient, amount):
        """
        Creates a new transaction to go into the next mined Block

        :param sender: <str> Address of the Sender
        :param recipient: <str> Address of the Recipient
        :param amount: <int> Amount

dvf

function MD5 (input) {
  var digest = Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, input);
  var output = "";
  for (i = 0; i < digest.length; i++) {
    var h = digest[i];
    if (h < 0) { h += 256; }
    if (h.toString(16).length == 1) { output += '0'; }
    output += h.toString(16);
  }
  return output;

dvf

class Blockchain(object):
    def __init__(self):
        self.chain = []
        self.current_transactions = []
        
    def new_block(self):
        # Creates a new Block and adds it to the chain
        pass
    
    def new_transaction(self):