3a0acfaba1
This commit implements a new layer called NostrNetworkManager, responsible for managing interactions with the Nostr network, and providing a higher level API that is easier and more secure to use for the layer above it. It also integrates it with the rest of the app, by moving RelayPool and PostBox into NostrNetworkManager, along with all their usages. Changelog-Added: Added NIP-65 relay list support Changelog-Changed: Improved robustness of relay list handling Signed-off-by: Daniel D’Aquino <daniel@daquino.me>
97 lines
3.0 KiB
Swift
97 lines
3.0 KiB
Swift
//
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// Contacts+.swift
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// damus
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//
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// Extra functionality and utilities for `Contacts.swift`
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//
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// Created by Daniel D’Aquino on 2023-11-24.
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//
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import Foundation
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func follow_reference(box: PostBox, our_contacts: NostrEvent?, keypair: FullKeypair, follow: FollowRef) -> NostrEvent? {
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guard let ev = follow_user_event(our_contacts: our_contacts, keypair: keypair, follow: follow) else {
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return nil
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}
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box.send(ev)
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return ev
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}
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func unfollow_reference(postbox: PostBox, our_contacts: NostrEvent?, keypair: FullKeypair, unfollow: FollowRef) -> NostrEvent? {
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guard let cs = our_contacts else {
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return nil
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}
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guard let ev = unfollow_reference_event(our_contacts: cs, keypair: keypair, unfollow: unfollow) else {
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return nil
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}
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postbox.send(ev)
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return ev
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}
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func unfollow_reference_event(our_contacts: NostrEvent, keypair: FullKeypair, unfollow: FollowRef) -> NostrEvent? {
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let tags = our_contacts.tags.reduce(into: [[String]]()) { ts, tag in
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if let tag = FollowRef.from_tag(tag: tag), tag == unfollow {
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return
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}
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ts.append(tag.strings())
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}
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let kind = NostrKind.contacts.rawValue
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return NostrEvent(content: our_contacts.content, keypair: keypair.to_keypair(), kind: kind, tags: Array(tags))
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}
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func follow_user_event(our_contacts: NostrEvent?, keypair: FullKeypair, follow: FollowRef) -> NostrEvent? {
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guard let cs = our_contacts else {
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// don't create contacts for now so we don't nuke our contact list due to connectivity issues
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// we should only create contacts during profile creation
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//return create_contacts(relays: relays, our_pubkey: our_pubkey, follow: follow)
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return nil
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}
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guard let ev = follow_with_existing_contacts(keypair: keypair, our_contacts: cs, follow: follow) else {
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return nil
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}
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return ev
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}
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func decode_json_relays(_ content: String) -> [RelayURL: LegacyKind3RelayRWConfiguration]? {
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return decode_json(content)
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}
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func is_already_following(contacts: NostrEvent, follow: FollowRef) -> Bool {
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return contacts.references.contains { ref in
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switch (ref, follow) {
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case let (.hashtag(ht), .hashtag(follow_ht)):
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return ht.hashtag == follow_ht
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case let (.pubkey(pk), .pubkey(follow_pk)):
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return pk == follow_pk
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case (.hashtag, .pubkey), (.pubkey, .hashtag),
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(.event, _), (.quote, _), (.param, _), (.naddr, _), (.reference(_), _):
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return false
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}
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}
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}
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func follow_with_existing_contacts(keypair: FullKeypair, our_contacts: NostrEvent, follow: FollowRef) -> NostrEvent? {
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// don't update if we're already following
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if is_already_following(contacts: our_contacts, follow: follow) {
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return nil
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}
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let kind = NostrKind.contacts.rawValue
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var tags = our_contacts.tags.strings()
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tags.append(follow.tag)
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return NostrEvent(content: our_contacts.content, keypair: keypair.to_keypair(), kind: kind, tags: tags)
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}
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