69 lines
2 KiB
C++
69 lines
2 KiB
C++
#include <graphene/chain/protocol/nft_ops.hpp>
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#include <graphene/chain/protocol/operations.hpp>
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namespace graphene
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{
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namespace chain
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{
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bool is_valid_nft_token_name(const string &name)
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{
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try
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{
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const size_t len = name.size();
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// NFT_TOKEN_MIN_LENGTH <= len minimum length check
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if (len < NFT_TOKEN_MIN_LENGTH)
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{
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return false;
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}
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// len <= NFT_TOKEN_MAX_LENGTH max length check
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if (len > NFT_TOKEN_MAX_LENGTH)
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{
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return false;
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}
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// First character should be a letter between a-z/A-Z
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if (!((name[0] >= 'a' && name[0] <= 'z') || (name[0] >= 'A' && name[0] <= 'Z')))
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{
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return false;
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}
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// Any character should either be a small case letter a-z or a digit 0-9
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for (const auto &ch : name)
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{
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if (!((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9') || (ch == ' ')))
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{
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return false;
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}
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}
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return true;
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}
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FC_CAPTURE_AND_RETHROW((name))
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}
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void nft_metadata_create_operation::validate() const
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{
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FC_ASSERT(fee.amount >= 0, "Fee must not be negative");
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FC_ASSERT(is_valid_nft_token_name(name), "Invalid NFT name provided");
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FC_ASSERT(is_valid_nft_token_name(symbol), "Invalid NFT symbol provided");
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FC_ASSERT(base_uri.length() <= NFT_URI_MAX_LENGTH, "Invalid NFT Base URI");
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}
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void nft_metadata_update_operation::validate() const
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{
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FC_ASSERT(fee.amount >= 0, "Fee must not be negative");
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if(name)
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FC_ASSERT(is_valid_nft_token_name(*name), "Invalid NFT name provided");
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if(symbol)
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FC_ASSERT(is_valid_nft_token_name(*symbol), "Invalid NFT symbol provided");
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if(base_uri)
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FC_ASSERT((*base_uri).length() <= NFT_URI_MAX_LENGTH, "Invalid NFT Base URI");
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}
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void nft_mint_operation::validate() const
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{
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FC_ASSERT(fee.amount >= 0, "Fee must not be negative");
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FC_ASSERT(token_uri.length() <= NFT_URI_MAX_LENGTH, "Invalid NFT Token URI");
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}
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} // namespace chain
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} // namespace graphene
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