From 0751c83a552e3b5d7b4270823c1d231b2976df8f Mon Sep 17 00:00:00 2001
From: pdp8 <pdp8@pdp8.info>
Date: Thu, 8 Jun 2023 18:00:57 +0200
Subject: POST with curl instead of Net::HTTP because of ruby openssl eof
 errors

---
 activitypub.rb | 90 +++++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 57 insertions(+), 33 deletions(-)

diff --git a/activitypub.rb b/activitypub.rb
index a67c9ba..6e82bc4 100644
--- a/activitypub.rb
+++ b/activitypub.rb
@@ -38,7 +38,6 @@ end
 post "/inbox" do # server-server
   request.body.rewind # in case someone already read it
   body = request.body.read
-  #p body
   action = JSON.parse body
 
   case action["type"]
@@ -173,20 +172,23 @@ end
 
 get "/", :provides => 'html' do
   protected!
-  @inbox = Dir['./inbox/*'].sort.collect do |file|
+  @inbox = Dir['./inbox/*.json'].sort.collect do |file|
     item = JSON.parse(File.read(file))
-    mention = mention(item['attributedTo'])
-    following_path = File.join('public', 'following', mention + '.json')
-    File.exists?(following_path) ? follow = 'unfollow' : follow = 'follow'
-    { :file => file,
-      :actor_url => item['attributedTo'],
-      :mention => mention,
-      :follow => follow,
-      :content => item['content'],
-      :attachment => item['attachment']
-    }
-  end
-  p @inbox
+    unless item['type'] == 'Person'
+      mention = mention(item['attributedTo'])
+      #p mention
+      following_path = File.join('public', 'following', mention + '.json')
+      File.exists?(following_path) ? follow = 'unfollow' : follow = 'follow'
+      { :file => file,
+        :actor_url => item['attributedTo'],
+        :mention => mention,
+        :follow => follow,
+        :content => item['content'],
+        :attachment => item['attachment']
+      }
+    end
+  end.compact
+  #p @inbox
   erb :index
 end
 
@@ -214,17 +216,44 @@ def create object
 end
 
 def mention actor
-  "#{get(actor)["preferredUsername"]}@#{URI(actor).host}"
+  people = File.read('inbox/people.tsv').split("\n").collect {|l| l.chomp.split("\t")}
+  person = people.select{|p| p[1] == actor} 
+  #p person
+  if person.empty?
+  #p actor
+    mention = "#{fetch(actor)["preferredUsername"]}@#{URI(actor).host}"
+    File.open('inbox/people.tsv','a'){|f| f.puts "#{mention}\t#{actor}"}
+    mention
+  else
+    person[0][0]
+  end
+end
+
+def actor mention
+  mention = mention.sub(/^@/, '').chomp
+  user, server = mention.split("@")
+  fetch("https://#{server}/.well-known/webfinger?resource=acct:#{mention}",
+      "application/jrd+json")["links"].select { |l|
+    l["rel"] == "self"
+  }[0]["href"]
 end
 
-def get url, accept = 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
+def fetch url, accept = 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"', limit = 10
+  p url
   uri = URI(url)
   http = Net::HTTP.new(uri.host, uri.port)
   http.use_ssl = true
   header = { 'Accept' => accept }
   request = Net::HTTP::Get.new(uri.request_uri, header)
   response = http.request(request)
-  JSON.parse(response.body)
+  case response
+  when Net::HTTPSuccess
+    return JSON.parse(response.body)
+  when Net::HTTPRedirection
+    fetch response['location'], accept, limit-1
+  else
+    puts "Unknown response: #{response.code}, #{response.message}\n#{response.code}"
+  end
 end
 
 def ordered_collection dir
@@ -252,7 +281,8 @@ def send_signed object, url
   signature = Base64.strict_encode64(keypair.sign(OpenSSL::Digest.new('SHA256'), signed_string))
   signed_header = 'keyId="' + ACTOR + '#main-key",algorithm="rsa-sha256",headers="(request-target) host date digest content-type",signature="' + signature + '"'
 
-  uri = URI.parse(get(url)["inbox"])
+=begin
+  uri = URI.parse(fetch(url)["inbox"])
   http = Net::HTTP.new(uri.host, uri.port)
   http.use_ssl = true
   header = {
@@ -267,16 +297,19 @@ def send_signed object, url
 
   p uri, body
   http.request(request)
+  puts "/run/current-system/sw/bin/curl -X POST -H 'Content-Type: application/activity+json' -H 'Host: #{uri.host}' -H 'Date: #{date}' -H 'Digest: #{digest}' -H 'Signature: #{signed_header}' -d '#{body}' #{url}"
+=end
+  `/run/current-system/sw/bin/curl -X POST -H 'Content-Type: application/activity+json' -H 'Host: #{uri.host}' -H 'Date: #{date}' -H 'Digest: #{digest}' -H 'Signature: #{signed_header}' -d '#{body}' #{url}`
 end
 
 def inbox uri
-  URI(get(uri)["inbox"]).request_uri
+  URI(fetch(uri)["inbox"]).request_uri
 end
 
 def verify_signature env
   # https://github.com/mastodon/mastodon/blob/main/app/controllers/concerns/signature_verification.rb
   # TODO verify digest
-  begin
+  #begin
     signature_params = {}
     env["HTTP_SIGNATURE"].split(',').each do |pair|
       k, v = pair.split('=')
@@ -287,7 +320,7 @@ def verify_signature env
     headers = signature_params['headers']
     signature = Base64.decode64(signature_params['signature'])
 
-    actor = get key_id
+    actor = fetch key_id
     key = OpenSSL::PKey::RSA.new(actor['publicKey']['publicKeyPem'])
 
     comparison = headers.split(' ').map do |signed_params_name|
@@ -301,16 +334,7 @@ def verify_signature env
     end.join("\n")
 
     key.verify(OpenSSL::Digest.new('SHA256'), signature, comparison)
-  rescue
-    false
-  end
-end
-
-def actor mention
-  mention = mention.sub(/^@/, '').chomp
-  user, server = mention.split("@")
-  get("https://#{server}/.well-known/webfinger?resource=acct:#{mention}",
-      "application/jrd+json")["links"].select { |l|
-    l["rel"] == "self"
-  }[0]["href"]
+  #rescue
+    #false
+  #end
 end
-- 
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