@aws-cdk/aws-redshift-alpha
Version:
The CDK Construct Library for AWS::Redshift
80 lines • 16.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.handler = handler;
const redshift_data_1 = require("./redshift-data");
const util_1 = require("./util");
async function handler(props, event) {
const username = props.username;
const tablePrivileges = props.tablePrivileges;
const clusterProps = props;
if (event.RequestType === 'Create') {
await grantPrivileges(username, tablePrivileges, clusterProps, event.StackId);
return { PhysicalResourceId: (0, util_1.makePhysicalId)(username, clusterProps, event.RequestId) };
}
else if (event.RequestType === 'Delete') {
await revokePrivileges(username, tablePrivileges, clusterProps, event.StackId);
return;
}
else if (event.RequestType === 'Update') {
const { replace } = await updatePrivileges(username, tablePrivileges, clusterProps, event.OldResourceProperties, event.StackId);
const physicalId = replace ? (0, util_1.makePhysicalId)(username, clusterProps, event.RequestId) : event.PhysicalResourceId;
return { PhysicalResourceId: physicalId };
}
else {
/* eslint-disable-next-line dot-notation */
throw new Error(`Unrecognized event type: ${event['RequestType']}`);
}
}
async function revokePrivileges(username, tablePrivileges, clusterProps, stackId) {
// Limited by human input
// eslint-disable-next-line @cdklabs/promiseall-no-unbounded-parallelism
await Promise.all(tablePrivileges.map(({ tableName, actions }) => {
return (0, redshift_data_1.executeStatement)(`REVOKE ${actions.join(', ')} ON ${normalizedTableName(tableName, stackId)} FROM ${username}`, clusterProps);
}));
}
async function grantPrivileges(username, tablePrivileges, clusterProps, stackId) {
// Limited by human input
// eslint-disable-next-line @cdklabs/promiseall-no-unbounded-parallelism
await Promise.all(tablePrivileges.map(({ tableName, actions }) => {
return (0, redshift_data_1.executeStatement)(`GRANT ${actions.join(', ')} ON ${normalizedTableName(tableName, stackId)} TO ${username}`, clusterProps);
}));
}
async function updatePrivileges(username, tablePrivileges, clusterProps, oldResourceProperties, stackId) {
const oldClusterProps = oldResourceProperties;
if (clusterProps.clusterName !== oldClusterProps.clusterName || clusterProps.databaseName !== oldClusterProps.databaseName) {
await grantPrivileges(username, tablePrivileges, clusterProps, stackId);
return { replace: true };
}
const oldUsername = oldResourceProperties.username;
if (oldUsername !== username) {
await grantPrivileges(username, tablePrivileges, clusterProps, stackId);
return { replace: true };
}
const oldTablePrivileges = oldResourceProperties.tablePrivileges;
const tablesToRevoke = oldTablePrivileges.filter(({ tableId, actions }) => (tablePrivileges.find(({ tableId: otherTableId, actions: otherActions }) => (tableId === otherTableId && actions.some(action => !otherActions.includes(action))))));
if (tablesToRevoke.length > 0) {
await revokePrivileges(username, tablesToRevoke, clusterProps, stackId);
}
const tablesToGrant = tablePrivileges.filter(({ tableId, tableName, actions }) => {
const tableAdded = !oldTablePrivileges.find(({ tableId: otherTableId, tableName: otherTableName }) => (tableId === otherTableId && tableName === otherTableName));
const actionsAdded = oldTablePrivileges.find(({ tableId: otherTableId, actions: otherActions }) => (tableId === otherTableId && otherActions.some(action => !actions.includes(action))));
return tableAdded || actionsAdded;
});
if (tablesToGrant.length > 0) {
await grantPrivileges(username, tablesToGrant, clusterProps, stackId);
}
return { replace: false };
}
/**
* We need this normalization logic because some of the `TableName` values
* are physical IDs generated in the {@link makePhysicalId} function.
* */
const normalizedTableName = (tableName, stackId) => {
const segments = tableName.split(':');
const suffix = segments.slice(-1);
if (suffix != null && stackId.endsWith(suffix[0])) {
return segments.slice(-2)[0] ?? tableName;
}
return tableName;
};
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eslint-disable-next-line import/no-unresolved */\nimport * as AWSLambda from 'aws-lambda';\nimport { TablePrivilege, UserTablePrivilegesHandlerProps } from '../handler-props';\nimport { executeStatement } from './redshift-data';\nimport { ClusterProps } from './types';\nimport { makePhysicalId } from './util';\n\nexport async function handler(props: UserTablePrivilegesHandlerProps & ClusterProps, event: AWSLambda.CloudFormationCustomResourceEvent) {\n  const username = props.username;\n  const tablePrivileges = props.tablePrivileges;\n  const clusterProps = props;\n\n  if (event.RequestType === 'Create') {\n    await grantPrivileges(username, tablePrivileges, clusterProps, event.StackId);\n    return { PhysicalResourceId: makePhysicalId(username, clusterProps, event.RequestId) };\n  } else if (event.RequestType === 'Delete') {\n    await revokePrivileges(username, tablePrivileges, clusterProps, event.StackId);\n    return;\n  } else if (event.RequestType === 'Update') {\n    const { replace } = await updatePrivileges(\n      username,\n      tablePrivileges,\n      clusterProps,\n      event.OldResourceProperties as unknown as UserTablePrivilegesHandlerProps & ClusterProps,\n      event.StackId,\n    );\n    const physicalId = replace ? makePhysicalId(username, clusterProps, event.RequestId) : event.PhysicalResourceId;\n    return { PhysicalResourceId: physicalId };\n  } else {\n    /* eslint-disable-next-line dot-notation */\n    throw new Error(`Unrecognized event type: ${event['RequestType']}`);\n  }\n}\n\nasync function revokePrivileges(\n  username: string,\n  tablePrivileges: TablePrivilege[],\n  clusterProps: ClusterProps,\n  stackId: string,\n) {\n  // Limited by human input\n  // eslint-disable-next-line @cdklabs/promiseall-no-unbounded-parallelism\n  await Promise.all(tablePrivileges.map(({ tableName, actions }) => {\n    return executeStatement(\n      `REVOKE ${actions.join(', ')} ON ${normalizedTableName(tableName, stackId)} FROM ${username}`,\n      clusterProps,\n    );\n  }));\n}\n\nasync function grantPrivileges(\n  username: string,\n  tablePrivileges: TablePrivilege[],\n  clusterProps: ClusterProps,\n  stackId: string,\n) {\n  // Limited by human input\n  // eslint-disable-next-line @cdklabs/promiseall-no-unbounded-parallelism\n  await Promise.all(tablePrivileges.map(({ tableName, actions }) => {\n    return executeStatement(\n      `GRANT ${actions.join(', ')} ON ${normalizedTableName(tableName, stackId)} TO ${username}`,\n      clusterProps,\n    );\n  }));\n}\n\nasync function updatePrivileges(\n  username: string,\n  tablePrivileges: TablePrivilege[],\n  clusterProps: ClusterProps,\n  oldResourceProperties: UserTablePrivilegesHandlerProps & ClusterProps,\n  stackId: string,\n): Promise<{ replace: boolean }> {\n  const oldClusterProps = oldResourceProperties;\n  if (clusterProps.clusterName !== oldClusterProps.clusterName || clusterProps.databaseName !== oldClusterProps.databaseName) {\n    await grantPrivileges(username, tablePrivileges, clusterProps, stackId);\n    return { replace: true };\n  }\n\n  const oldUsername = oldResourceProperties.username;\n  if (oldUsername !== username) {\n    await grantPrivileges(username, tablePrivileges, clusterProps, stackId);\n    return { replace: true };\n  }\n\n  const oldTablePrivileges = oldResourceProperties.tablePrivileges;\n  const tablesToRevoke = oldTablePrivileges.filter(({ tableId, actions }) => (\n    tablePrivileges.find(({ tableId: otherTableId, actions: otherActions }) => (\n      tableId === otherTableId && actions.some(action => !otherActions.includes(action))\n    ))\n  ));\n  if (tablesToRevoke.length > 0) {\n    await revokePrivileges(username, tablesToRevoke, clusterProps, stackId);\n  }\n\n  const tablesToGrant = tablePrivileges.filter(({ tableId, tableName, actions }) => {\n    const tableAdded = !oldTablePrivileges.find(({ tableId: otherTableId, tableName: otherTableName }) => (\n      tableId === otherTableId && tableName === otherTableName\n    ));\n    const actionsAdded = oldTablePrivileges.find(({ tableId: otherTableId, actions: otherActions }) => (\n      tableId === otherTableId && otherActions.some(action => !actions.includes(action))\n    ));\n    return tableAdded || actionsAdded;\n  });\n  if (tablesToGrant.length > 0) {\n    await grantPrivileges(username, tablesToGrant, clusterProps, stackId);\n  }\n\n  return { replace: false };\n}\n\n/**\n * We need this normalization logic because some of the `TableName` values\n * are physical IDs generated in the {@link makePhysicalId} function.\n * */\nconst normalizedTableName = (tableName: string, stackId: string): string => {\n  const segments = tableName.split(':');\n  const suffix = segments.slice(-1);\n  if (suffix != null && stackId.endsWith(suffix[0])) {\n    return segments.slice(-2)[0] ?? tableName;\n  }\n  return tableName;\n};\n"]}