Using Spring Security with Clojure/Compojure/Noir: Preliminaries

I don't know how to use Spring Security with Clojure web apps, but I'd like to learn how. I've got some clues, and I'm going to try and track them down and see how far I can get.

The first obstacle to overcome is that there doesn't seem to be anything in clojars I can just grab. Fortunately leiningen prints out some detailed error messages, which I can use to manually install the jar files I need. First I'll grab the jar files from http://www.springsource.com/download/community. Just the 3.0.5 release is all I need. I unzip the file, which gives me a directory with a number of different jar files in it.

Next, I cheat by editing my project.clj file to ask for a jar that doesn't exist. The lein deps command chugs along for a while, and then spews out a huge error dump, but with a little digging I can find this message somewhere in the middle:

Unable to resolve artifact: Missing:
----------
1) org.springframework.security:spring-security-parent:jar:3.0.5.RELEASE

  Try downloading the file manually from the project website.

  Then, install it using the command: 
      mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-parent -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=/path/to/file

There's the magical incantation I need. I'll just cheat again by editing the suggested maven command so that it installs each of the jar files that I downloaded from springsource. I don't know yet which specific jar files I'll need, so I'll install them all.

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-acl -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-acl-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-aspects -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-aspects-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-cas-client -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-cas-client-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-config -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-config-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-core -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-core-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-ldap -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-ldap-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-openid -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-openid-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-taglibs -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-taglibs-3.0.5.RELEASE.jar

mvn install:install-file -DgroupId=org.springframework.security -DartifactId=spring-security-web -Dversion=3.0.5.RELEASE -Dpackaging=jar -Dfile=./spring-security-web-3.0.5.RELEASE.jar

If I cd into the directory where I extracted the Spring Security jars, I can just cut and paste this code, and have each of the spring-security-* jars installed in my local .m2 directory, where leiningen can find them.

Now I go back and edit project.clj, and add the core spring-security jar to my dependencies:

(defproject mm2 "0.1.0-SNAPSHOT"
            :description "FIXME: write this!"
            :dependencies [[org.clojure/clojure "1.2.1"]
                           [noir "1.1.0"]
                           ;; ADD SPRING SECURITY HERE:
                           [org.springframework.security/spring-security-core
                            "3.0.5.RELEASE"]]
            :main mm2.server)

Run lein deps and ... yup, the jar file is in lib/. It worked! Now I just need to figure out what other jar files I need (if any) and how to hook them into my clojure project. But that's a project for later.