chore: Add down gem for Local file downloads (#2765)

- Add down gem to handle downloading files to host machine
- Remove the LocalResource class
- Introduce max limit for contact avatars send via SDK

app/jobs/contact_avatar_job.rb

@@ -2,9 +2,12 @@ class ContactAvatarJob < ApplicationJob
   queue_as :default
 
   def perform(contact, avatar_url)
-    avatar_resource = LocalResource.new(avatar_url)
-    contact.avatar.attach(io: avatar_resource.file, filename: avatar_resource.tmp_filename, content_type: avatar_resource.encoding)
-  rescue *ExceptionList::URI_EXCEPTIONS, NoMethodError => e
+    avatar_file = Down.download(
+      avatar_url,
+      max_size: 15 * 1024 * 1024
+    )
+    contact.avatar.attach(io: avatar_file, filename: avatar_file.original_filename, content_type: avatar_file.content_type)
+  rescue Down::Error => e
     Rails.logger.info "Exception: invalid avatar url #{avatar_url} : #{e.message}"
   end
 end

app/jobs/contact_ip_lookup_job.rb

@@ -45,8 +45,10 @@ class ContactIpLookupJob < ApplicationJob
 
   def setup_vendor_db
     base_url = 'https://download.maxmind.com/app/geoip_download'
-    source = URI.parse("#{base_url}?edition_id=GeoLite2-City&suffix=tar.gz&license_key=#{ENV['IP_LOOKUP_API_KEY']}").open
-    tar_extract = Gem::Package::TarReader.new(Zlib::GzipReader.open(source))
+    source_file = Down.download(
+      "#{base_url}?edition_id=GeoLite2-City&suffix=tar.gz&license_key=#{ENV['IP_LOOKUP_API_KEY']}"
+    )
+    tar_extract = Gem::Package::TarReader.new(Zlib::GzipReader.open(source_file))
     tar_extract.rewind
 
     tar_extract.each do |entry|