function()

in src/ccf/ccf-provider-common/constitution/actions.js [438:490]

• 41 lines of code
• 9 McCabe index (conditional complexity)

      function (args) {
        const rawMemberId = ccf.strToBuf(args.member_id);
        const rawMemberInfo =
          ccf.kv["public:ccf.gov.members.info"].get(rawMemberId);
        if (rawMemberInfo === undefined) {
          return; // Idempotent
        }

        const memberInfo = ccf.bufToJsonCompatible(rawMemberInfo);
        const isActiveMember = memberInfo.status == "Active";

        const isRecoveryMember = ccf.kv[
          "public:ccf.gov.members.encryption_public_keys"
        ].has(rawMemberId)
          ? true
          : false;

        // If the member is an active recovery member, check that there
        // would still be a sufficient number of recovery members left
        // to recover the service
        if (isActiveMember && isRecoveryMember) {
          const rawConfig = ccf.kv["public:ccf.gov.service.config"].get(
            getSingletonKvKey()
          );
          if (rawConfig === undefined) {
            throw new Error("Service configuration could not be found");
          }

          const config = ccf.bufToJsonCompatible(rawConfig);
          const activeRecoveryMembersCountAfter =
            getActiveRecoveryMembersCount() - 1;
          if (activeRecoveryMembersCountAfter < config.recovery_threshold) {
            throw new Error(
              `Number of active recovery members (${activeRecoveryMembersCountAfter}) would be less than recovery threshold (${config.recovery_threshold})`
            );
          }
        }

        ccf.kv["public:ccf.gov.members.info"].delete(rawMemberId);
        ccf.kv["public:ccf.gov.members.encryption_public_keys"].delete(
          rawMemberId
        );
        ccf.kv["public:ccf.gov.members.certs"].delete(rawMemberId);
        ccf.kv["public:ccf.gov.members.acks"].delete(rawMemberId);
        ccf.kv["public:ccf.gov.history"].delete(rawMemberId);

        if (isActiveMember && isRecoveryMember) {
          // A retired recovery member should not have access to the private
          // ledger going forward so rekey the ledger, issuing new shares to
          // remaining active recovery members
          ccf.node.triggerLedgerRekey();
        }
      }