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Dev Feature 5 - Changing Collection Authors #6

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Dev Feature 5 - Changing Collection Authors #6

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5bdfa17
dev-feature-5
on-a-t-break Sep 16, 2024
0e6eedd
Fixes; *reworked owner permissions requirement
on-a-t-break Oct 14, 2024
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27 changes: 26 additions & 1 deletion include/atomicassets.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ using namespace atomicdata;


static constexpr double MAX_MARKET_FEE = 0.15;
static constexpr uint32_t AUTHOR_SWAP_TIME_DELTA = 60 * 60 * 24 * 7; // 1 week, valid for 1 week


CONTRACT atomicassets : public contract {
Expand Down Expand Up @@ -78,6 +79,19 @@ CONTRACT atomicassets : public contract {
name collection_name
);

ACTION createauswap(
name collection_name,
name new_author,
bool owner
);

ACTION acceptauswap(
name collection_name
);

ACTION rejectauswap(
name collection_name
);

ACTION createschema(
name authorized_creator,
Expand Down Expand Up @@ -254,6 +268,17 @@ CONTRACT atomicassets : public contract {

private:

TABLE author_swaps_s {
name collection_name;
name current_author;
name new_author;
uint32_t acceptance_date;

uint64_t primary_key() const { return collection_name.value; };
};

typedef multi_index <name("authorswaps"), author_swaps_s> author_swaps_t;

TABLE collections_s {
name collection_name;
name author;
Expand Down Expand Up @@ -363,7 +388,7 @@ CONTRACT atomicassets : public contract {
// https://github.com/EOSIO/eosio.cdt/issues/280
typedef multi_index <name("tokenconfigs"), tokenconfigs_s> tokenconfigs_t_for_abi;


author_swaps_t authorswaps = author_swaps_t(get_self(), get_self().value);
collections_t collections = collections_t(get_self(), get_self().value);
offers_t offers = offers_t(get_self(), get_self().value);
balances_t balances = balances_t(get_self(), get_self().value);
Expand Down
88 changes: 88 additions & 0 deletions src/atomicassets.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -327,6 +327,94 @@ ACTION atomicassets::forbidnotify(
});
}

/**
* Creates a swap offer for a collection
* Acceptance functionality depends on the authorization being 'owner' or 'active' (7 days gate)
*/

ACTION atomicassets::createauswap(
name collection_name,
name new_author,
bool owner
) {
auto collection_itr = collections.require_find(collection_name.value,
"No collection with this name exists");

if (owner){
require_auth(permission_level{collection_itr->author, name("owner")});
} else {
require_auth(collection_itr->author);
}

check(authorswaps.find(collection_name.value) == authorswaps.end(),
"Can't swap author's while an authorswap is underway for this collection");

authorswaps.emplace(collection_itr->author, [&](auto &_author_swaps) {
_author_swaps.collection_name = collection_name;
_author_swaps.current_author = collection_itr->author;
_author_swaps.new_author = new_author;
_author_swaps.acceptance_date = eosio::current_time_point().sec_since_epoch() + (owner ? 0 : AUTHOR_SWAP_TIME_DELTA);
});
}

/**
* Accepts an author swap, with time constraints based on 'owner' or 'active' permissions used when creating the author swap
* With default parameters, author swaps created by 'active' permissions can only be accepted after 1 week has passed
* With default parameters, author swaps remain valid for up to 3 weeks
*/

ACTION atomicassets::acceptauswap(
name collection_name
) {
auto collection_itr = collections.require_find(collection_name.value,
"No collection with this name exists");

auto author_swaps_itr = authorswaps.require_find(collection_name.value,
"No author swaps for this collection found");

// Just in case**
check(collection_itr->author == author_swaps_itr->current_author,
"Current author mismatch");

require_auth(author_swaps_itr->new_author);

uint32_t now = eosio::current_time_point().sec_since_epoch();

check (now > author_swaps_itr->acceptance_date,
("[ " + to_string(author_swaps_itr->acceptance_date - now) + " ] seconds remaining until this author swap can be accepted").c_str());

check (now < author_swaps_itr->acceptance_date + AUTHOR_SWAP_TIME_DELTA, "Author swap for this collection has expired");

collections.modify(collection_itr, author_swaps_itr->new_author, [&](auto &_collection){
_collection.author = author_swaps_itr->new_author;
});

authorswaps.erase(author_swaps_itr);
}

/**
* Rejects author swaps
* Can be used by either the current author or by the new author
*/

ACTION atomicassets::rejectauswap(
name collection_name
) {
auto collection_itr = collections.require_find(collection_name.value,
"No collection with this name exists");

auto author_swaps_itr = authorswaps.require_find(collection_name.value,
"No author swaps for this collection found");

// Just in case**
check(collection_itr->author == author_swaps_itr->current_author,
"Current author mismatch");

check(has_auth(author_swaps_itr->current_author) || has_auth(author_swaps_itr->new_author),
"Missing required authorizations");

authorswaps.erase(author_swaps_itr);
}

/**
* Creates a new schema
Expand Down