{ "contractName": "Metadata", "abi": [ { "anonymous": false, "inputs": [ { "indexed": true, "name": "dataToken", "type": "address" }, { "indexed": true, "name": "createdBy", "type": "address" }, { "indexed": false, "name": "flags", "type": "bytes" }, { "indexed": false, "name": "data", "type": "bytes" } ], "name": "MetadataCreated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "dataToken", "type": "address" }, { "indexed": true, "name": "updatedBy", "type": "address" }, { "indexed": false, "name": "flags", "type": "bytes" }, { "indexed": false, "name": "data", "type": "bytes" } ], "name": "MetadataUpdated", "type": "event" }, { "constant": false, "inputs": [ { "name": "dataToken", "type": "address" }, { "name": "flags", "type": "bytes" }, { "name": "data", "type": "bytes" } ], "name": "create", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "dataToken", "type": "address" }, { "name": "flags", "type": "bytes" }, { "name": "data", "type": "bytes" } ], "name": "update", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.7+commit.6da8b019\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":false,\"inputs\":[{\"name\":\"dataToken\",\"type\":\"address\"},{\"name\":\"flags\",\"type\":\"bytes\"},{\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"create\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"dataToken\",\"type\":\"address\"},{\"name\":\"flags\",\"type\":\"bytes\"},{\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"update\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"dataToken\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"createdBy\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"flags\",\"type\":\"bytes\"},{\"indexed\":false,\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"MetadataCreated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"dataToken\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"updatedBy\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"flags\",\"type\":\"bytes\"},{\"indexed\":false,\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"MetadataUpdated\",\"type\":\"event\"}],\"devdoc\":{\"details\":\"Metadata stands for Decentralized Document. It allows publishers to publish their dataset metadata in decentralized way. It follows the Ocean DID Document standard: https://github.com/oceanprotocol/OEPs/blob/master/7/v0.2/README.md\",\"methods\":{\"create(address,bytes,bytes)\":{\"details\":\"create creates/publishes new metadata/DDO document on-chain. \",\"params\":{\"data\":\"referes to the actual metadata\",\"dataToken\":\"refers to data token address\",\"flags\":\"special flags associated with metadata\"}},\"update(address,bytes,bytes)\":{\"details\":\"update allows only datatoken minter(s) to update the DDO/metadata content\",\"params\":{\"data\":\"referes to the actual metadata\",\"dataToken\":\"refers to data token address\",\"flags\":\"special flags associated with metadata\"}}},\"title\":\"Metadata \"},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/ocean/ocean-contracts/contracts/metadata/Metadata.sol\":\"Metadata\"},\"evmVersion\":\"byzantium\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/ocean/ocean-contracts/contracts/interfaces/IERC20Template.sol\":{\"keccak256\":\"0x022ebed2ba4949e96a05cc394cf690d8fd3190a4733cebe8cbe930ac25cfde18\",\"urls\":[\"bzzr://2fa3d5cae14f0af7d78f6e1d13bc41854082c03ab2f86462ebb09afda88ee6e9\"]},\"/ocean/ocean-contracts/contracts/metadata/Metadata.sol\":{\"keccak256\":\"0x6deddfdc2e45d81e50d58cf216908c18bdbc0c84a1dad53ca2995f14d0217d7d\",\"urls\":[\"bzzr://be7a7be0d067cedb6d2f4acc7457e89dd7c9dbbf2b77725784ed0e9bb67bd64a\"]}},\"version\":1}", "bytecode": 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"source": "pragma solidity 0.5.7;\n// Copyright BigchainDB GmbH and Ocean Protocol contributors\n// SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)\n// Code is Apache-2.0 and docs are CC-BY-4.0\n\nimport '../interfaces/IERC20Template.sol';\n\n\n/**\n* @title Metadata\n* \n* @dev Metadata stands for Decentralized Document. It allows publishers\n* to publish their dataset metadata in decentralized way.\n* It follows the Ocean DID Document standard: \n* https://github.com/oceanprotocol/OEPs/blob/master/7/v0.2/README.md\n*/\ncontract Metadata {\n\n event MetadataCreated(\n address indexed dataToken,\n address indexed createdBy,\n bytes flags,\n bytes data\n );\n event MetadataUpdated(\n address indexed dataToken,\n address indexed updatedBy,\n bytes flags,\n bytes data\n );\n\n modifier onlyDataTokenMinter(address dataToken)\n {\n IERC20Template token = IERC20Template(dataToken);\n require(\n token.minter() == msg.sender,\n 'Metadata: Invalid DataToken Minter'\n );\n _;\n }\n\n /**\n * @dev create\n * creates/publishes new metadata/DDO document on-chain. \n * @param dataToken refers to data token address\n * @param flags special flags associated with metadata\n * @param data referes to the actual metadata\n */\n function create(\n address dataToken,\n bytes calldata flags,\n bytes calldata data\n ) \n external\n onlyDataTokenMinter(dataToken)\n {\n emit MetadataCreated(\n dataToken,\n msg.sender,\n flags,\n data\n );\n }\n\n /**\n * @dev update\n * allows only datatoken minter(s) to update the DDO/metadata content\n * @param dataToken refers to data token address\n * @param flags special flags associated with metadata\n * @param data referes to the actual metadata\n */\n function update(\n address dataToken,\n bytes calldata flags,\n bytes calldata data\n ) \n external\n onlyDataTokenMinter(dataToken)\n {\n emit MetadataUpdated(\n dataToken,\n msg.sender,\n flags,\n data\n );\n }\n}", "sourcePath": "/ocean/ocean-contracts/contracts/metadata/Metadata.sol", "ast": { "absolutePath": "/ocean/ocean-contracts/contracts/metadata/Metadata.sol", "exportedSymbols": { "Metadata": [5158] }, "id": 5159, "nodeType": "SourceUnit", "nodes": [ { "id": 5072, "literals": ["solidity", "0.5", ".7"], "nodeType": "PragmaDirective", "src": "0:22:11" }, { "absolutePath": "/ocean/ocean-contracts/contracts/interfaces/IERC20Template.sol", "file": "../interfaces/IERC20Template.sol", "id": 5073, "nodeType": "ImportDirective", "scope": 5159, "sourceUnit": 5071, "src": "185:42:11", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@title Metadata\n \n@dev Metadata stands for Decentralized Document. It allows publishers\n to publish their dataset metadata in decentralized way.\n It follows the Ocean DID Document standard: \n https://github.com/oceanprotocol/OEPs/blob/master/7/v0.2/README.md", "fullyImplemented": true, "id": 5158, "linearizedBaseContracts": [5158], "name": "Metadata", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": null, "id": 5083, "name": "MetadataCreated", "nodeType": "EventDefinition", "parameters": { "id": 5082, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5075, "indexed": true, "name": "dataToken", "nodeType": "VariableDeclaration", "scope": 5083, "src": "576:25:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5074, "name": "address", "nodeType": "ElementaryTypeName", "src": "576:7:11", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5077, "indexed": true, "name": "createdBy", "nodeType": "VariableDeclaration", "scope": 5083, "src": "611:25:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5076, "name": "address", "nodeType": "ElementaryTypeName", "src": "611:7:11", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5079, "indexed": false, "name": "flags", "nodeType": "VariableDeclaration", "scope": 5083, "src": "646:11:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 5078, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "646:5:11", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5081, "indexed": false, "name": "data", "nodeType": "VariableDeclaration", "scope": 5083, "src": "667:10:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 5080, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "667:5:11", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "566:117:11" }, "src": "545:139:11" }, { "anonymous": false, "documentation": null, "id": 5093, "name": "MetadataUpdated", "nodeType": "EventDefinition", "parameters": { "id": 5092, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5085, "indexed": true, "name": "dataToken", "nodeType": "VariableDeclaration", "scope": 5093, "src": "720:25:11", 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