209 lines
4.7 KiB
Ruby
209 lines
4.7 KiB
Ruby
module Pigeon
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class Database
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attr_reader :who_am_i
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def initialize(path: PIGEON_DB_PATH)
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@store = Pigeon::Storage.new(path: path)
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init_ident
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end
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# === PEERS
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def add_peer(p)
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store.add_peer(p)
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end
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def block_peer(p)
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store.block_peer(p)
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end
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def remove_peer(p)
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store.remove_peer(p)
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end
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def peer_blocked?(p)
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store.peer_blocked?(p)
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end
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def all_blocks
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store.all_blocks
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end
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def all_peers
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store.all_peers
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end
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# === MESSAGES
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def all_messages(mhash = nil)
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store.all_messages(mhash)
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end
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def message_saved?(multihash)
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store.message_saved?(multihash)
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end
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def _save_message(msg_obj)
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store.insert_message(Helpers.verify_message(self, msg_obj))
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end
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def read_message(multihash)
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store.read_message(multihash)
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end
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def get_message_count_for(multihash)
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store.get_message_count_for(multihash)
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end
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def get_message_by_depth(multihash, depth)
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store.get_message_by_depth(multihash, depth)
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end
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def add_message(kind, params)
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publish_draft(new_draft(kind: kind, body: params))
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end
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# Store a message that someone (not the LocalIdentity)
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# has authored.
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def _ingest_message(author:,
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body:,
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depth:,
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kind:,
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lipmaa:,
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prev:,
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signature:)
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msg = Message.new(author: RemoteIdentity.new(author),
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kind: kind,
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body: body,
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prev: prev,
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lipmaa: lipmaa,
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signature: signature,
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depth: depth)
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_save_message(msg)
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end
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# === DRAFTS
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def reset_draft
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add_config(CURRENT_DRAFT, nil)
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end
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def new_draft(kind:, body: {})
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old = get_config(CURRENT_DRAFT)
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raise "PUBLISH OR RESET CURRENT DRAFT (#{old.kind}) FIRST" if old
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save_draft(Draft.new(kind: kind, body: body))
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end
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def save_draft(draft)
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add_config(CURRENT_DRAFT, draft)
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draft
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end
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def get_draft
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draft = store.get_config(CURRENT_DRAFT)
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unless draft
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raise "THERE IS NO DRAFT. CREATE ONE FIRST."
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end
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draft
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end
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def update_draft(k, v)
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Helpers.update_draft(self, k, v)
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end
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def reset_draft
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add_config(CURRENT_DRAFT, nil)
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end
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# Author a new message.
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def publish_draft(draft = get_draft)
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Helpers.publish_draft(self, draft)
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end
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# === BUNDLES
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def export_bundle(file_path = DEFAULT_BUNDLE_PATH)
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Helpers.mkdir_p(file_path)
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# Fetch messages for all peers
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peers = all_peers + [who_am_i.multihash]
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messages = peers.map do |peer|
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all_messages(peer)
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.map { |multihash| read_message(multihash) }
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.sort_by(&:depth)
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end.flatten
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# Attach blobs for all messages in bundle.
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messages
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.map(&:collect_blobs)
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.flatten
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.uniq
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.map do |mhash|
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hash2filepath = Helpers.hash2file_path(mhash)
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blob_path = File.join(file_path, hash2filepath)
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blob = get_blob(mhash)
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puts "=== EXPORT"
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puts " blob_path: #{blob_path}"
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puts " mhash: #{mhash}"
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puts " blob: #{blob.length} bytes"
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Helpers.write_to_disk(blob_path, mhash, blob)
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end
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# Render messages for all peers.
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content = messages
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.map(&:render)
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.join(BUNDLE_MESSAGE_SEPARATOR)
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File.write(File.join(file_path, "gossip.pgn"), content + CR)
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end
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def import_bundle(file_path = DEFAULT_BUNDLE_PATH)
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bundle = File.read(File.join(file_path, "gossip.pgn"))
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tokens = Pigeon::Lexer.tokenize(bundle)
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blobs = tokens.each_with_object(Set.new) do |(_a, b, c), set|
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[b, c].map do |d|
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set.add(d) if Helpers.blob_multihash?(d)
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end
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end.map do |multihash|
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binding.pry unless store.have_blob?(multihash)
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end
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Pigeon::Parser.parse(self, tokens)
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end
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# === BLOBS
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def get_blob(b)
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store.get_blob(b)
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end
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def add_blob(b)
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store.add_blob(b)
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end
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# === DB Management
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def get_config(k)
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store.get_config(k)
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end
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def add_config(k, v)
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store.add_config(k, v)
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end
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def reset_database
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store.reset
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init_ident
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end
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private
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attr_reader :store
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def init_ident
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secret = get_config(SEED_CONFIG_KEY)
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if secret
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@who_am_i = LocalIdentity.new(secret)
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else
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new_seed = SecureRandom.random_bytes(Ed25519::KEY_SIZE)
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add_config(SEED_CONFIG_KEY, new_seed)
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@who_am_i = LocalIdentity.new(new_seed)
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end
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end
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end
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end
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