initial commit

20 files changed, 1454 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6dfed3c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+pkg
+Gemfile.lock
+NOTES
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..619272b
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in keymachine.gemspec
+gemspec
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..193e67f
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,676 @@
+Copyright (c) 2013 LEAP Encryption Access Project
+
+                    GNU GENERAL PUBLIC LICENSE
+                      Version 3, 29 June 2007
+
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+  15. Disclaimer of Warranty.
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+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..344c3cc
--- /dev/null
+++ b/README.md
@@ -0,0 +1,77 @@
+Nickserver
+==================================
+
+Nickserver is the opposite of a key server. A key server allows you to lookup
+keys, and the UIDs associated with a particular key. A nickserver allows you
+to query a particular 'nick' (e.g. username@example.org) and get back relevant
+public key information for that nick.
+
+Nickserver has the following properties:
+
+* Written in Ruby, licensed GPLv3
+* Lightweight and scalable
+* Uses asynchronous network IO for both server and client connections (via EventMachine)
+* Attempts to reply to queries using four different methods:
+  * Cached key in CouchDB (coming soon)
+  * Webfinger (coming soon)
+  * DNS (maybe?)
+  * HKP keyserver pool (https://hkps.pool.sks-keyservers.net)
+
+Why Nickserver?
+----------------------------------
+
+Why bother writing Nickserver instead of just using the existing HKP keyservers?
+
+* Keyservers are fundamentally different: Nickserver is a registry of 1:1
+  mapping from nick (uid) to public key. Keyservers are directories of public
+  keys, which happen to have some uid information in the subkeys, but there is
+  no way to query for an exact uid.
+
+* Support clients: the goal is to provide clients with a cloud-based method of
+  rapidly and easily converting nicks to keys. Client code can stay simple by
+  pushing more of the work to the server.
+
+* Enhancements over keyservers: the goal with Nickserver is to support future
+  enhancements like webfinger, DNS key lookup, mail-back verification, network
+  perspective, and fast distribution of short lived keys.
+
+* Scalable: the goal is for a service that can handle many simultaneous
+  requests very quickly with low memory consumption.
+
+API
+==================================
+
+You query the nickserver via HTTP. The API is very minimal at the moment:
+
+    curl -X GET hostname:6425/key/<uid>
+
+Returns the OpenPGP public key for uid.
+
+Installation
+==================================
+
+You have three fine options for installing nickserver:
+
+Install the gem:
+
+    $ gem install nickserver
+
+Install from source:
+
+    $ git clone git://leap.se/nickserver
+    $ cd nickserver
+    $ rake build
+    $ rake install
+
+Install for development:
+
+    $ git clone git://leap.se/nickserver
+    $ cd nickserver
+    $ bundle
+
+Usage
+==================================
+
+None yet, just a bunch of unit tests.
+
+    rake test
\ No newline at end of file
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..6bfd0d9
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,83 @@
+#require "bundler/gem_tasks"
+
+require "rubygems"
+require "pty"
+require "fileutils"
+require "rake/testtask"
+
+##
+## TESTING
+##
+
+Rake::TestTask.new do |t|
+  t.pattern = "test/unit/*_test.rb"
+end
+task :default => :test
+
+##
+## GEM BUILDING AND INSTALLING
+##
+
+$spec_path = 'nickserver.gemspec'
+$base_dir  = File.dirname(__FILE__)
+$spec      = eval(File.read(File.join($base_dir, $spec_path)))
+$gem_path  = File.join($base_dir, 'pkg', "#{$spec.name}-#{$spec.version}.gem")
+
+def run(cmd)
+  PTY.spawn(cmd) do |output, input, pid|
+    begin
+      while line = output.gets do
+        puts line
+      end
+    rescue Errno::EIO
+    end
+  end
+rescue PTY::ChildExited
+end
+
+def built_gem_path
+  Dir[File.join($base_dir, "#{$spec.name}-*.gem")].sort_by{|f| File.mtime(f)}.last
+end
+
+desc "Build #{$spec.name}-#{$spec.version}.gem into the pkg directory"
+task 'build' do
+  FileUtils.mkdir_p(File.join($base_dir, 'pkg'))
+  FileUtils.rm($gem_path) if File.exists?($gem_path)
+  run "gem build -V '#{$spec_path}'"
+  file_name = File.basename(built_gem_path)
+  FileUtils.mv(built_gem_path, 'pkg')
+  puts "#{$spec.name} #{$spec.version} built to pkg/#{file_name}"
+end
+
+desc "Install #{$spec.name}-#{$spec.version}.gem into either system-wide or user gems"
+task 'install' do
+  if !File.exists?($gem_path)
+    puts("Could not file #{$gem_path}. Try running 'rake build'")
+  else
+    options = '--verbose --conservative --no-rdoc --no-ri'
+    if ENV["USER"] == "root"
+      run "gem install #{options} '#{$gem_path}'"
+    else
+      home_gem_path = Gem.path.grep(/home/).first
+      puts "You are installing as an unprivileged user, which will result in the installation being placed in '#{home_gem_path}'."
+      print "Do you want to continue installing to #{home_gem_path}? [y/N] "
+      input = STDIN.readline
+      if input =~ /[yY]/
+        run "gem install #{$gem_path} #{options} --install-dir '#{home_gem_path}' "
+      else
+        puts "bailing out."
+      end
+    end
+  end
+end
+
+desc "Uninstall #{$spec.name}-#{$spec.version}.gem from either system-wide or user gems"
+task 'uninstall' do
+  if ENV["USER"] == "root"
+    puts "Removing #{$spec.name}-#{$spec.version}.gem from system-wide gems"
+    run "gem uninstall '#{$spec.name}' --version #{$spec.version} --verbose -x -I"
+  else
+    puts "Removing #{$spec.name}-#{$spec.version}.gem from user's gems"
+    run "gem uninstall '#{$spec.name}' --version #{$spec.version} --verbose --user-install -x -I"
+  end
+end
diff --git a/lib/nickserver.rb b/lib/nickserver.rb
new file mode 100644
index 0000000..9ddc839
--- /dev/null
+++ b/lib/nickserver.rb
@@ -0,0 +1,10 @@
+
+require "nickserver/version"
+require "nickserver/config"
+
+require "nickserver/hkp/key_info"
+require "nickserver/hkp/fetch_key_info"
+require "nickserver/hkp/fetch_key"
+
+require "nickserver/server"
+
diff --git a/lib/nickserver/config.rb b/lib/nickserver/config.rb
new file mode 100644
index 0000000..d47fc68
--- /dev/null
+++ b/lib/nickserver/config.rb
@@ -0,0 +1,14 @@
+module Nickserver
+  class Config
+    class << self
+      attr_accessor :sks_url
+      attr_accessor :port
+    end
+  end
+
+  #
+  # set reasonable defaults
+  #
+  Config.sks_url = 'https://hkps.pool.sks-keyservers.net:/pks/lookup'
+  Config.port = 6425 # aka "NICK"
+end
diff --git a/lib/nickserver/hkp/fetch_key.rb b/lib/nickserver/hkp/fetch_key.rb
new file mode 100644
index 0000000..c72ee11
--- /dev/null
+++ b/lib/nickserver/hkp/fetch_key.rb
@@ -0,0 +1,51 @@
+require 'em-http'
+
+module Nickserver; module HKP
+
+  class FetchKey
+    include EM::Deferrable
+
+    def get(uid)
+      FetchKeyInfo.new.search(uid).callback {|key_info_list|
+        best = pick_best_key(key_info_list)
+        get_key_by_fingerprint(best.keyid) {|key|
+          self.succeed key
+        }
+      }.errback {|msg|
+        self.fail msg
+      }
+      self
+    end
+
+    #
+    # fetches ascii armored OpenPGP public key from the keyserver
+    #
+    def get_key_by_fingerprint(key_id)
+      params = {:op => 'get', :search => "0x" + key_id, :exact => 'on', :options => 'mr'}
+      http = EventMachine::HttpRequest.new(Config.sks_url).get(:query => params)
+      http.callback {
+        if http.response_header.status != 200
+          self.fail http.response_header.status #"Request failed with #{http.response_header.status}: #{http.response}"
+        else
+          yield http.response
+        end
+      }
+      http.errback {
+        self.fail http.error
+      }
+    end
+
+    protected
+
+    #
+    # for now, just pick the newest key.
+    #
+    # in the future, we should perhaps pick the newest key
+    # that is signed by the oldest key.
+    #
+    def pick_best_key(key_info_list)
+      key_info_list.sort {|a,b| a.creationdate <=> b.creationdate}.last
+    end
+  end
+
+end; end
\ No newline at end of file
diff --git a/lib/nickserver/hkp/fetch_key_info.rb b/lib/nickserver/hkp/fetch_key_info.rb
new file mode 100644
index 0000000..48ef48a
--- /dev/null
+++ b/lib/nickserver/hkp/fetch_key_info.rb
@@ -0,0 +1,66 @@
+require 'em-http'
+
+#
+# used to fetch an array of KeyInfo objects that match the given uid.
+#
+
+module Nickserver; module HKP
+  class FetchKeyInfo
+    include EM::Deferrable
+
+    # for this regexp to work, the source text must end in a trailing "\n",
+    # which the output of sks does.
+    MATCH_PUB_KEY = /(^pub:.+?\n(^uid:.+?\n)+)/m
+
+    def search(uid)
+      # in practice, exact=on seems to have no effect
+      params = {:op => 'vindex', :search => uid, :exact => 'on', :options => 'mr', :fingerprint => 'on'}
+      EventMachine::HttpRequest.new(Config.sks_url).get(:query => params).callback {|http|
+        if http.response_header.status != 200
+          self.fail http.response_header.status
+        else
+          self.succeed parse(uid, http.response)
+        end
+      }.errback {|http|
+        self.fail http.error
+      }
+      self
+    end
+
+    #
+    # input:
+    #  uid           -- uid to search for
+    #  vindex_result -- raw output from a vindex hkp query (machine readable)
+    #
+    # returns:
+    #   an array of eligible keys (as HKPKeyInfo objects) matching uid.
+    #
+    # keys are eliminated from eligibility for a number of reasons, including expiration,
+    # revocation, uid match, key length, and so on...
+    #
+    def parse(uid, vindex_result)
+      keys = []
+      now = Time.now
+      vindex_result.scan(MATCH_PUB_KEY).each do |match|
+        key_info = KeyInfo.new(match[0])
+        if key_info.uids.include?(uid)
+          if key_info.keylen <= 1024
+            #puts 'key length is too short'
+          elsif key_info.expired?
+            #puts 'ignoring expired key'
+          elsif key_info.revoked?
+            #puts 'ignoring revoked key'
+          elsif key_info.disabled?
+            #puts 'ignoring disabled key'
+          elsif key_info.expirationdate && key_info.expirationdate < now
+            #puts 'ignoring expired key'
+          else
+            keys << key_info
+          end
+        end
+      end
+      keys
+    end
+  end
+
+end; end
\ No newline at end of file
diff --git a/lib/nickserver/hkp/key_info.rb b/lib/nickserver/hkp/key_info.rb
new file mode 100644
index 0000000..adb75d8
--- /dev/null
+++ b/lib/nickserver/hkp/key_info.rb
@@ -0,0 +1,69 @@
+require 'cgi'
+
+#
+# Class to represent the key information result from a query to a key server
+# (but not the key itself).
+#
+# The initialize method parses the hkp 'machine readable' output.
+#
+# format definition of machine readable index output is here:
+# http://tools.ietf.org/html/draft-shaw-openpgp-hkp-00#section-5.2
+#
+module Nickserver; module HKP
+  class KeyInfo
+    attr_accessor :uids, :keyid, :algo, :keylen, :creationdate, :expirationdate, :flags
+
+    def initialize(hkp_record)
+      uid_lines = hkp_record.split("\n")
+      pub_line  = uid_lines.shift
+      @keyid, @algo, @keylen_s, @creationdate_s, @expirationdate_s, @flags = pub_line.split(':')[1..-1]
+      @uids = []
+      uid_lines.each do |uid_line|
+        uid, creationdate, expirationdate, flags = uid_line.split(':')[1..-1]
+        # for now, ignore the expirationdate and flags of uids. sks does return them anyway
+        @uids << CGI.unescape(uid.sub(/.*<(.+)>.*/, '\1'))
+      end
+    end
+
+    def keylen
+      @keylen ||= @keylen_s.to_i
+    end
+
+    def creationdate
+      @creationdate ||= begin
+        if @creationdate_s
+          Time.at(@creationdate_s.to_i)
+        end
+      end
+    end
+
+    def expirationdate
+      @expirationdate ||= begin
+        if @expirationdate_s
+          Time.at(@expirationdate_s.to_i)
+        end
+      end
+    end
+
+    def rsa?
+      @algo == "1"
+    end
+
+    def dsa?
+      @algo == "17"
+    end
+
+    def revoked?
+      @flags =~ /r/
+    end
+
+    def disabled?
+      @flags =~ /d/
+    end
+
+    def expired?
+      @flags =~ /e/
+    end
+  end
+
+end; end
diff --git a/lib/nickserver/server.rb b/lib/nickserver/server.rb
new file mode 100644
index 0000000..4201cef
--- /dev/null
+++ b/lib/nickserver/server.rb
@@ -0,0 +1,70 @@
+require 'eventmachine'
+require 'evma_httpserver'
+
+
+#
+# This is the main HTTP server that clients connect to in order to fetch keys
+#
+module Nickserver
+  class Server < EM::Connection
+    include EM::HttpServer
+
+    def post_init
+      super
+      no_environment_strings
+    end
+
+    def process_http_request
+      # the http request details are available via the following instance variables:
+      #   @http_protocol
+      #   @http_request_method
+      #   @http_cookie
+      #   @http_if_none_match
+      #   @http_content_type
+      #   @http_path_info
+      #   @http_request_uri
+      #   @http_query_string
+      #   @http_post_content
+      #   @http_headers
+      if @http_request_method == "GET"
+        if @http_path_info =~ /^\/key\//
+          send_key
+        else
+          send_error("malformed path: #{@http_path_info}")
+        end
+      else
+        send_error("only GET is supported")
+      end
+    end
+
+    private
+
+    def send_error(msg = "not supported")
+      send_response(:status => 500, :content => msg)
+    end
+
+    def send_key
+      uid = CGI.unescape @http_path_info.sub(/^\/key\/(.*)/, '\1')
+      get_key_from_uid(uid) do |key|
+        send_response(:content => key)
+      end
+    end
+
+    def send_response(opts = {})
+      options = {:status => 200, :content_type => 'text/plain', :content => ''}.merge(opts)
+      response = EM::DelegatedHttpResponse.new(self)
+      response.status = options[:status]
+      response.content_type options[:content_type]
+      response.content = options[:content]
+      response.send_response
+    end
+
+    def get_key_from_uid(uid)
+      Nickserver::HKP::FetchKey.new.get(uid).callback {|key|
+        yield key
+      }.errback {|status|
+        send_response(:status => status, :content => 'could not fetch key')
+      }
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/nickserver/version.rb b/lib/nickserver/version.rb
new file mode 100644
index 0000000..799ca6c
--- /dev/null
+++ b/lib/nickserver/version.rb
@@ -0,0 +1,3 @@
+module Nickserver
+  VERSION = "0.0.1"
+end
diff --git a/nickserver.gemspec b/nickserver.gemspec
new file mode 100644
index 0000000..5d0d807
--- /dev/null
+++ b/nickserver.gemspec
@@ -0,0 +1,27 @@
+# -*- encoding: utf-8 -*-
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'nickserver/version'
+
+Gem::Specification.new do |gem|
+  gem.name          = "nickserver"
+  gem.version       = Nickserver::VERSION
+  gem.authors       = ["elijah"]
+  gem.email         = ["elijah@riseup.net"]
+  gem.description   = %q{Provides a directory service to map uid to public key.}
+  gem.summary       = %q{Nickserver provides the ability to map a uid (user@domain.org) to a public key. This is the opposite of a key server, whose job it is to map public key to uid. Nickserver is lightweight and asynchronous.}
+  gem.homepage      = "https://leap.se"
+
+  gem.files         = `git ls-files`.split($/)
+  gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
+  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
+  gem.require_paths = ["lib"]
+
+  gem.add_development_dependency 'rake'
+  gem.add_development_dependency 'minitest'
+  gem.add_development_dependency 'webmock'
+
+  gem.add_dependency 'eventmachine'
+  gem.add_dependency 'em-http-request'
+  gem.add_dependency 'eventmachine_httpserver'
+end
diff --git a/test/files/hkp_vindex_result b/test/files/hkp_vindex_result
new file mode 100644
index 0000000..677c242
--- /dev/null
+++ b/test/files/hkp_vindex_result
@@ -0,0 +1,21 @@
+info:1:7
+pub:0EE5BE979282D80B9F7540F1CCD2ED94D21739E9:1:4096:1180812858:1424970931:
+uid:Lemur <lemur@leap.se>:1330362947::
+uid:Lemur <lemur@example.org>:1330362946::
+uat::::
+pub:B59941F741EAEAF8726F45D88974E514A54B6365:1:2048:944761959:1180812858:
+uid:Lemur <lemur@leap.se>:1032066007::
+uid:Lemur <lemur@example.rog>:1165682982::
+uat::::
+pub:3790027A:1:4096:1354554342::
+uid:Gazelle <gazelle@leap.se>:1354554342::
+pub:997FA77F:1:4096:1243472517::
+uid:Gazelle <gazelle@leap.se>:1304892367::
+uid:Gazelle <gazelle@example.org>:1354352902::
+pub:3A893F69:1:4096:1304037659::
+uid:Frog <frog@example.org>:1304037659::
+pub:00440025:1:4096:1243467172::
+uid:Frog <frog@leap.se>:1243467172::
+pub:2518C3B5:17:1024:1089226421::
+uid:Frog <frog@leap.se>:1089226421::
+
diff --git a/test/files/leap_public_key b/test/files/leap_public_key
new file mode 100644
index 0000000..d58631c
--- /dev/null
+++ b/test/files/leap_public_key
@@ -0,0 +1,46 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+mQINBFCCWqkBEACrs4OtFflza37rQR8s9NWdhvU/DCwDWKV08RjOWqIlcc2Y/nfIkQnSsqZR
+Bv5n7AVwSPvlMNPC3AHA19HtrN7OKWCbWhIAy0Pu1snIO9ETItCl5F5Jv0dXPrL/iJQLJvv0
+rI+uLivFJ4ovn+y6WQum5/toP4SMxbePQfmpB/qhJZPCWQabP6TK3uryHv+BdJRY8Z+Vx9M5
+GPHqRnC+3DvlRW/dUFze0YLa1X0aQ6oWX5Fa9bGmMWCt0Z9xvNk0eghe7yz3woE7QPQ+ajeX
+sTeLFDKTSJCuL1soA1UqsFQFtiOYzBkTOlrkkv7HTSyBNbQ/kTFGNsarcAJXnup++wSnDKWb
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+=wcWV
+-----END PGP PUBLIC KEY BLOCK-----
\ No newline at end of file
diff --git a/test/files/leap_vindex_result b/test/files/leap_vindex_result
new file mode 100644
index 0000000..cdb4e46
--- /dev/null
+++ b/test/files/leap_vindex_result
@@ -0,0 +1,4 @@
+info:1:1
+pub:E818C478D3141282F7590D29D041EB11B1647490:1:4096:1350720169:1382256169:
+uid:Cloudadmin at LEAP.se (Collective key for infrastructure at LEAP.se) <cloudadmin@leap.se>:1350720169::
+
diff --git a/test/test_helper.rb b/test/test_helper.rb
new file mode 100644
index 0000000..031a90f
--- /dev/null
+++ b/test/test_helper.rb
@@ -0,0 +1,75 @@
+$LOAD_PATH.unshift File.expand_path(File.dirname(__FILE__) + '/../lib')
+
+require 'rubygems'
+require 'minitest/autorun'
+require 'webmock/minitest'
+require 'nickserver'
+
+class MiniTest::Unit::TestCase
+  # Add global extensions to the test case class here
+
+  def setup
+    # by default, mock all non-localhost network connections
+    WebMock.disable_net_connect!(:allow_localhost => true)
+  end
+
+  def file_content(filename)
+    (@file_contents ||= {})[filename] ||= File.read("%s/files/%s" % [File.dirname(__FILE__), filename])
+  end
+
+  def real_network
+    if ENV['REAL_NET'] == 'true'
+      WebMock.allow_net_connect!
+      yield
+      WebMock.disable_net_connect!
+    end
+  end
+
+  def stub_vindex_response(uid, opts = {})
+    options = {:status => 200, :body => ""}.merge(opts)
+    stub_http_request(:get, Nickserver::Config.sks_url).with(
+      :query => {:op => 'vindex', :search => uid, :exact => 'on', :options => 'mr', :fingerprint => 'on'}
+    ).to_return(options)
+  end
+
+  def stub_get_response(key_id, opts = {})
+    options = {:status => 200, :body => ""}.merge(opts)
+    stub_http_request(:get, Nickserver::Config.sks_url).with(
+      :query => {:op => 'get', :search => "0x"+key_id, :exact => 'on', :options => 'mr'}
+    ).to_return(options)
+  end
+
+  #def without_webmock
+  #  WebMock.disable_net_connect!(:allow_localhost => true)
+  #  yield
+  #  WebMock.disable_net_connect!
+  #end
+end
+
+#
+# a simple EM connection with callbacks for various lifecycle stages,
+# useful for testing
+#
+class TestSocketClient < EventMachine::Connection
+  attr_writer :onopen, :onclose, :onmessage
+  attr_reader :data
+
+  def initialize
+    @state = :new
+    @data = []
+  end
+
+  def receive_data(data)
+    @data << data
+    if @state == :new
+      @onopen.call if @onopen
+      @state = :open
+    else
+      @onmessage.call(data) if @onmessage
+    end
+  end
+
+  def unbind
+    @onclose.call if @onclose
+  end
+end
diff --git a/test/unit/hkp_test.rb b/test/unit/hkp_test.rb
new file mode 100644
index 0000000..c9c28cf
--- /dev/null
+++ b/test/unit/hkp_test.rb
@@ -0,0 +1,120 @@
+require File.expand_path('test_helper', File.dirname(__FILE__))
+
+class HkpTest < MiniTest::Unit::TestCase
+
+  def test_key_info_expired
+    fetch_key_info(:hkp_vindex_result, 'lemur@leap.se') do |keys|
+      assert_equal 1, keys.length, 'should find a single key'
+      assert_equal ['lemur@example.org', 'lemur@leap.se'].sort, keys.first.uids.sort, 'should find both uids'
+      assert_equal '0EE5BE979282D80B9F7540F1CCD2ED94D21739E9', keys.first.keyid
+    end
+  end
+
+  def test_key_info_multiple_valid_results
+    fetch_key_info :hkp_vindex_result, 'gazelle@leap.se' do |keys|
+      assert_equal 2, keys.length, 'should find two keys'
+      assert_equal ['gazelle@leap.se'], keys.first.uids
+      assert_equal '3790027A', keys.first.keyid
+      assert keys.last.uids.include? 'gazelle@leap.se'
+    end
+  end
+
+  def test_key_info_reject_keysize
+    fetch_key_info :hkp_vindex_result, 'frog@leap.se' do |keys|
+      assert_equal 1, keys.length, 'should find one key'
+      assert_equal '00440025', keys.first.keyid
+    end
+  end
+
+  def test_key_info_not_found
+    uid = 'leaping_lemur@leap.se'
+    stub_vindex_response(uid, :status => 404)
+    test_em_errback "Nickserver::HKP::FetchKeyInfo.new.search '#{uid}'" do |error|
+      assert_equal 404, error
+    end
+  end
+
+  def test_key_info_real_network
+    real_network do
+      uid = 'elijah@riseup.net'
+      test_em_callback "Nickserver::HKP::FetchKeyInfo.new.search '#{uid}'" do |keys|
+        assert_equal 1, keys.size
+        assert keys.first.keyid =~ /00440025$/
+      end
+    end
+  end
+
+  def test_fetch_key
+    uid    = 'cloudadmin@leap.se'
+    key_id = 'E818C478D3141282F7590D29D041EB11B1647490'
+    stub_vindex_response(uid, :body => file_content(:leap_vindex_result))
+    stub_get_response(key_id, :body => file_content(:leap_public_key))
+
+    test_em_callback "Nickserver::HKP::FetchKey.new.get '#{uid}'" do |key_text|
+      assert_equal file_content(:leap_public_key), key_text
+    end
+  end
+
+  def test_fetch_key_not_found
+    uid    = 'cloudadmin@leap.se'
+    key_id = 'E818C478D3141282F7590D29D041EB11B1647490'
+
+    stub_vindex_response(uid, :body => file_content(:leap_vindex_result))
+    stub_get_response(key_id, :status => 404)
+
+    test_em_errback "Nickserver::HKP::FetchKey.new.get '#{uid}'" do |error|
+      assert_equal 404, error
+    end
+  end
+
+  protected
+
+  #
+  # Takes a code snippet that returns a Deferrable, and yields the callback result.
+  # Assertion fails if errback is called instead of callback.
+  #
+  # This method takes care of the calls to EM.run and EM.stop. It works kind of like EM.run_block,
+  # except I couldn't get run_block to work with multiple nested HTTP requests.
+  #
+  def test_em_callback(code, &block)
+    EM.run do
+      deferrable = instance_eval(code)
+      deferrable.callback {|response|
+        EM.stop
+        yield response
+        return
+      }
+      deferrable.errback {|response|
+        EM.stop
+        flunk "Expecting callback, but errback invoked with response: #{response}"
+      }
+    end
+    assert false, 'should not get here'
+  end
+
+  #
+  # like test_em_callback, except value yielded is the result of errback, and
+  # we raise an exception if errback was not called.
+  #
+  def test_em_errback(code, &block)
+    EM.run do
+      deferrable = instance_eval(code)
+      deferrable.callback {|response|
+        EM.stop
+        flunk "Expecting errback, but callback invoked with response: #{response}"
+      }
+      deferrable.errback {|response|
+        EM.stop
+        yield response
+        return
+      }
+    end
+    assert false, 'should not get here'
+  end
+
+  def fetch_key_info(body_source, uid, &block)
+    stub_vindex_response(uid, :body => file_content(body_source))
+    test_em_callback "Nickserver::HKP::FetchKeyInfo.new.search '#{uid}'", &block
+  end
+
+end
diff --git a/test/unit/server_test.rb b/test/unit/server_test.rb
new file mode 100644
index 0000000..ba462d0
--- /dev/null
+++ b/test/unit/server_test.rb
@@ -0,0 +1,34 @@
+require File.expand_path('test_helper', File.dirname(__FILE__))
+
+class ServerTest < MiniTest::Unit::TestCase
+
+  def test_server
+    uid    = 'cloudadmin@leap.se'
+    key_id = 'E818C478D3141282F7590D29D041EB11B1647490'
+    stub_vindex_response(uid, :body => file_content(:leap_vindex_result))
+    stub_get_response(key_id, :body => file_content(:leap_public_key))
+
+    EM.run do
+      EM.start_server '0.0.0.0', Nickserver::Config.port, Nickserver::Server
+
+      params = {:query => {}, :path => "key/#{CGI.escape(uid)}"}
+      http = EventMachine::HttpRequest.new("http://localhost:#{Nickserver::Config.port}").get(params)
+      http.callback {
+        assert_equal file_content(:leap_public_key), http.response
+        EM.stop
+      }.errback {
+        puts http.error
+        EM.stop
+      }
+
+      #socket = EM.connect('0.0.0.0', Nickserver::Config.port, TestSocketClient)
+      #socket.onopen = lambda {
+      #  server.players.size.should == 1
+      #  socket.data.last.chomp.should == "READY"
+      #  EM.stop
+      #}
+    end
+  end
+
+end
+
diff --git a/test/unit/test_helper.rb b/test/unit/test_helper.rb
new file mode 100644
index 0000000..ade21a0
--- /dev/null
+++ b/test/unit/test_helper.rb
@@ -0,0 +1 @@
+require File.dirname(File.dirname(__FILE__)) + '/test_helper'
\ No newline at end of file