Welcome back to the blog series about how to hack a box! In the past few blogs we’ve gone through a few steps which gives you an idea of how you can hack a box. We went from the Introduction, to Exploration, to Gaining Access. In this blog, we’ll cover the basics of Enumeration.
Archive: November 2020
When code evolves we usually deprecate old code. Sometimes we come across deprecations without any hints with what to replace it with. Kotlin has a solution for this by allowing you to specify a replace instruction.
Spring boot supports a non-blocking programming model with the spring-webflux module. Webflux supports a Reactive API using the Reactor library Flux and Mono API types. This model forces you to write your code in a different style than most people are used to. It generally is much harder to follow and debug.
Apaches fluent httpclient API is a facade API to simplify the httpclients usage for standard use cases. It’s also better readable and results in cleaner code. In this post we’ll see how to use a custom SSLContext with the fluent API. We’ll use the new 5.0 version because it contains some changes compared to 4.x.
Welcome back to the blog series about how to hack a box! In this third post I’ll guide you through the second step: gaining access.
In Clojure we can get part of a vector collection using the
subvec function. The function takes a vector as argument, a required begin index and optional end index. The returned value is a vector with part of the values of the original vector starting from the begin up to the end index. If we leave out the optional end index, the size of the vector is used as end index.
To split a collection in Clojure we can use the
split-at functions. The
split-with function takes a predicate as first argument and a colletion as second argument. The function will return a vector with two items. The first item is the result of the function
take-while with the given predicate. The second item in the result vector is the resul of the
drop-while function with the same predicate.
In Clojure we can use the
shuffle function with a collection argument to get a new collection where the items of the input collection are re-ordered randomly. The function delegates to the Java
In Clojure we can format a string using Common Lisp format syntax or the Java format string syntax. In the post we will look at the how we can use the Java format string syntax. We must use the
format function in the
clojure.core namespace. The method delegates to the standard JDK
String#format method. The first argument is a format string followed by one or more arguments that are used in the format string. We can look up the syntax of the format string in the Javadoc for the