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author | Azul <azul@riseup.net> | 2016-05-25 13:13:30 +0200 |
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committer | Azul <azul@riseup.net> | 2016-05-25 14:13:30 +0200 |
commit | 8a81429f0eb8aa5041d47557d0c5b5359bb959e6 (patch) | |
tree | 10f5d3db69883c685408edc3365d1e762f13e322 /lib/nickserver/hkp/v_index_response.rb | |
parent | 5c0fa0fb7b10820f2956807cb457421bf1e00708 (diff) |
copy over all files from rewritten attempt
I started a nickserver from scratch to implement the things that are independent of our choice of stack (eventmachine or other).
This commit copies them over and tests both things in parallel.
Diffstat (limited to 'lib/nickserver/hkp/v_index_response.rb')
-rw-r--r-- | lib/nickserver/hkp/v_index_response.rb | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/lib/nickserver/hkp/v_index_response.rb b/lib/nickserver/hkp/v_index_response.rb new file mode 100644 index 0000000..865d476 --- /dev/null +++ b/lib/nickserver/hkp/v_index_response.rb @@ -0,0 +1,96 @@ +require 'nickserver/hkp' +require 'nickserver/hkp/key_info' + +# +# Simple parser for Hkp KeyInfo responses. +# +# Focus is on simple here. Trying to avoid state and sideeffects. +# Parsing a response with 12 keys and validating them takes 2ms. +# So no need for memoization and making things more complex. +module Nickserver::Hkp + class VIndexResponse + + # 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 + + # hkp_response -- raw output from a vindex hkp query (machine readable) + def initialize(nick, hkp_response) + @nick = nick.to_s + @vindex_result = hkp_response[:body] + end + + def status + if keys.empty? + error_status + else + 200 + end + end + + def keys + key_infos.reject { |key| error_for_key(key) } + end + + def msg + if errors.any? + error_messages.join "\n" + else + "Could not fetch keyinfo." + end + end + + protected + + attr_reader :vindex_result, :nick + + def error_status + if errors.any? + 500 + else + 404 + end + end + + def errors + key_infos.map{|key| error_for_key(key) }.compact + end + + def error_messages + key_infos.map do |key| + err = error_for_key(key) + error_message(key, err) + end.compact + end + + def key_infos + all_key_infos.select do |key_info| + key_info.uids.include?(nick) + end + end + + def all_key_infos + @all_key_infos ||= vindex_result.scan(MATCH_PUB_KEY).map do |match| + KeyInfo.new(match[0]) + end + end + + def error_message(key, err) + "Ignoring key #{key.keyid} for #{nick}: #{err}" if err + end + + def error_for_key(key) + if key.keylen < 2048 + "key length is too short." + elsif key.expired? + "key expired." + elsif key.revoked? + "key revoked." + elsif key.disabled? + "key disabled." + elsif key.expirationdate && key.expirationdate < Time.now + "key expired" + end + end + end +end |