@aws-cdk/aws-iam/lib/private/postprocess-policy-document.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.normalizeStatement = exports.PostProcessPolicyDocument = void 0;
const cdk = require("@aws-cdk/core");
const util_1 = require("../util");
const merge_statements_1 = require("./merge-statements");
/**
 * A Token postprocesser for policy documents
 *
 * Removes duplicate statements, merges statements, and assign Sids if necessary
 *
 * Because policy documents can contain all kinds of crazy things,
 * we do all the necessary work here after the document has been mostly resolved
 * into a predictable CloudFormation form.
 */
class PostProcessPolicyDocument {
    constructor(autoAssignSids, minimize) {
        this.autoAssignSids = autoAssignSids;
        this.minimize = minimize;
    }
    postProcess(input, _context) {
        if (!input || !input.Statement) {
            return input;
        }
        if (this.minimize) {
            input.Statement = merge_statements_1.mergeStatements(input.Statement);
        }
        // Also remove full-on duplicates (this will not be necessary if
        // we minimized, but it might still dedupe statements we didn't
        // minimize like 'Deny' statements, and definitely is still necessary
        // if we didn't minimize)
        const jsonStatements = new Set();
        const uniqueStatements = [];
        for (const statement of input.Statement) {
            const jsonStatement = JSON.stringify(statement);
            if (!jsonStatements.has(jsonStatement)) {
                uniqueStatements.push(statement);
                jsonStatements.add(jsonStatement);
            }
        }
        // assign unique SIDs (the statement index) if `autoAssignSids` is enabled
        const statements = uniqueStatements.map((s, i) => {
            if (this.autoAssignSids && !s.Sid) {
                s.Sid = i.toString();
            }
            return s;
        });
        return {
            ...input,
            Statement: statements,
        };
    }
}
exports.PostProcessPolicyDocument = PostProcessPolicyDocument;
function normalizeStatement(s) {
    return noUndef({
        Action: _norm(s.Action, { unique: true }),
        NotAction: _norm(s.NotAction, { unique: true }),
        Condition: _norm(s.Condition),
        Effect: _norm(s.Effect),
        Principal: _normPrincipal(s.Principal),
        NotPrincipal: _normPrincipal(s.NotPrincipal),
        Resource: _norm(s.Resource, { unique: true }),
        NotResource: _norm(s.NotResource, { unique: true }),
        Sid: _norm(s.Sid),
    });
    function _norm(values, { unique = false } = { unique: false }) {
        if (values == null) {
            return undefined;
        }
        if (cdk.Token.isUnresolved(values)) {
            return values;
        }
        if (Array.isArray(values)) {
            if (!values || values.length === 0) {
                return undefined;
            }
            if (values.length === 1) {
                return values[0];
            }
            return unique ? Array.from(new Set(values)) : values;
        }
        if (values && typeof (values) === 'object') {
            if (Object.keys(values).length === 0) {
                return undefined;
            }
        }
        return values;
    }
    function _normPrincipal(principal) {
        if (!principal) {
            return undefined;
        }
        const keys = Object.keys(principal);
        if (keys.length === 0) {
            return undefined;
        }
        // This is handling a special case for round-tripping a literal
        // string principal loaded from JSON.
        if (util_1.LITERAL_STRING_KEY in principal) {
            return principal[util_1.LITERAL_STRING_KEY][0];
        }
        const result = {};
        for (const key of keys) {
            const normVal = _norm(principal[key]);
            if (normVal) {
                result[key] = normVal;
            }
        }
        return result;
    }
}
exports.normalizeStatement = normalizeStatement;
function noUndef(x) {
    const ret = {};
    for (const [key, value] of Object.entries(x)) {
        if (value !== undefined) {
            ret[key] = value;
        }
    }
    return ret;
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"postprocess-policy-document.js","sourceRoot":"","sources":["postprocess-policy-document.ts"],"names":[],"mappings":";;;AAAA,qCAAqC;AACrC,kCAA6C;AAC7C,yDAAqD;AAErD;;;;;;;;GAQG;AACH,MAAa,yBAAyB;IACpC,YAA6B,cAAuB,EAAmB,QAAiB;QAA3D,mBAAc,GAAd,cAAc,CAAS;QAAmB,aAAQ,GAAR,QAAQ,CAAS;KACvF;IAEM,WAAW,CAAC,KAAU,EAAE,QAA6B;QAC1D,IAAI,CAAC,KAAK,IAAI,CAAC,KAAK,CAAC,SAAS,EAAE;YAC9B,OAAO,KAAK,CAAC;SACd;QAED,IAAI,IAAI,CAAC,QAAQ,EAAE;YACjB,KAAK,CAAC,SAAS,GAAG,kCAAe,CAAC,KAAK,CAAC,SAAS,CAAC,CAAC;SACpD;QAED,gEAAgE;QAChE,+DAA+D;QAC/D,qEAAqE;QACrE,yBAAyB;QACzB,MAAM,cAAc,GAAG,IAAI,GAAG,EAAU,CAAC;QACzC,MAAM,gBAAgB,GAAU,EAAE,CAAC;QAEnC,KAAK,MAAM,SAAS,IAAI,KAAK,CAAC,SAAS,EAAE;YACvC,MAAM,aAAa,GAAG,IAAI,CAAC,SAAS,CAAC,SAAS,CAAC,CAAC;YAChD,IAAI,CAAC,cAAc,CAAC,GAAG,CAAC,aAAa,CAAC,EAAE;gBACtC,gBAAgB,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;gBACjC,cAAc,CAAC,GAAG,CAAC,aAAa,CAAC,CAAC;aACnC;SACF;QAED,0EAA0E;QAC1E,MAAM,UAAU,GAAG,gBAAgB,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE;YAC/C,IAAI,IAAI,CAAC,cAAc,IAAI,CAAC,CAAC,CAAC,GAAG,EAAE;gBACjC,CAAC,CAAC,GAAG,GAAG,CAAC,CAAC,QAAQ,EAAE,CAAC;aACtB;YAED,OAAO,CAAC,CAAC;QACX,CAAC,CAAC,CAAC;QAEH,OAAO;YACL,GAAG,KAAK;YACR,SAAS,EAAE,UAAU;SACtB,CAAC;KACH;CACF;AA1CD,8DA0CC;AAkBD,SAAgB,kBAAkB,CAAC,CAAkB;IACnD,OAAO,OAAO,CAAC;QACb,MAAM,EAAE,KAAK,CAAC,CAAC,CAAC,MAAM,EAAE,EAAE,MAAM,EAAE,IAAI,EAAE,CAAC;QACzC,SAAS,EAAE,KAAK,CAAC,CAAC,CAAC,SAAS,EAAE,EAAE,MAAM,EAAE,IAAI,EAAE,CAAC;QAC/C,SAAS,EAAE,KAAK,CAAC,CAAC,CAAC,SAAS,CAAC;QAC7B,MAAM,EAAE,KAAK,CAAC,CAAC,CAAC,MAAM,CAAC;QACvB,SAAS,EAAE,cAAc,CAAC,CAAC,CAAC,SAAS,CAAC;QACtC,YAAY,EAAE,cAAc,CAAC,CAAC,CAAC,YAAY,CAAC;QAC5C,QAAQ,EAAE,KAAK,CAAC,CAAC,CAAC,QAAQ,EAAE,EAAE,MAAM,EAAE,IAAI,EAAE,CAAC;QAC7C,WAAW,EAAE,KAAK,CAAC,CAAC,CAAC,WAAW,EAAE,EAAE,MAAM,EAAE,IAAI,EAAE,CAAC;QACnD,GAAG,EAAE,KAAK,CAAC,CAAC,CAAC,GAAG,CAAC;KAClB,CAAC,CAAC;IAEH,SAAS,KAAK,CAAC,MAAW,EAAE,EAAE,MAAM,GAAG,KAAK,KAA0B,EAAE,MAAM,EAAE,KAAK,EAAE;QAErF,IAAI,MAAM,IAAI,IAAI,EAAE;YAClB,OAAO,SAAS,CAAC;SAClB;QAED,IAAI,GAAG,CAAC,KAAK,CAAC,YAAY,CAAC,MAAM,CAAC,EAAE;YAClC,OAAO,MAAM,CAAC;SACf;QAED,IAAI,KAAK,CAAC,OAAO,CAAC,MAAM,CAAC,EAAE;YACzB,IAAI,CAAC,MAAM,IAAI,MAAM,CAAC,MAAM,KAAK,CAAC,EAAE;gBAClC,OAAO,SAAS,CAAC;aAClB;YAED,IAAI,MAAM,CAAC,MAAM,KAAK,CAAC,EAAE;gBACvB,OAAO,MAAM,CAAC,CAAC,CAAC,CAAC;aAClB;YAED,OAAO,MAAM,CAAC,CAAC,CAAC,KAAK,CAAC,IAAI,CAAC,IAAI,GAAG,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC,MAAM,CAAC;SACtD;QAED,IAAI,MAAM,IAAI,OAAM,CAAC,MAAM,CAAC,KAAK,QAAQ,EAAE;YACzC,IAAI,MAAM,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC,MAAM,KAAK,CAAC,EAAE;gBACpC,OAAO,SAAS,CAAC;aAClB;SACF;QAED,OAAO,MAAM,CAAC;IAChB,CAAC;IAED,SAAS,cAAc,CAAC,SAAkC;QACxD,IAAI,CAAC,SAAS,EAAE;YAAE,OAAO,SAAS,CAAC;SAAE;QAErC,MAAM,IAAI,GAAG,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;QACpC,IAAI,IAAI,CAAC,MAAM,KAAK,CAAC,EAAE;YAAE,OAAO,SAAS,CAAC;SAAE;QAE5C,+DAA+D;QAC/D,qCAAqC;QACrC,IAAI,yBAAkB,IAAI,SAAS,EAAE;YACnC,OAAO,SAAS,CAAC,yBAAkB,CAAC,CAAC,CAAC,CAAC,CAAC;SACzC;QAED,MAAM,MAAM,GAAQ,EAAE,CAAC;QACvB,KAAK,MAAM,GAAG,IAAI,IAAI,EAAE;YACtB,MAAM,OAAO,GAAG,KAAK,CAAC,SAAS,CAAC,GAAG,CAAC,CAAC,CAAC;YACtC,IAAI,OAAO,EAAE;gBACX,MAAM,CAAC,GAAG,CAAC,GAAG,OAAO,CAAC;aACvB;SACF;QACD,OAAO,MAAM,CAAC;IAChB,CAAC;AACH,CAAC;AAjED,gDAiEC;AAED,SAAS,OAAO,CAAC,CAAM;IACrB,MAAM,GAAG,GAAQ,EAAE,CAAC;IACpB,KAAK,MAAM,CAAC,GAAG,EAAE,KAAK,CAAC,IAAI,MAAM,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE;QAC5C,IAAI,KAAK,KAAK,SAAS,EAAE;YACvB,GAAG,CAAC,GAAG,CAAC,GAAG,KAAK,CAAC;SAClB;KACF;IACD,OAAO,GAAG,CAAC;AACb,CAAC","sourcesContent":["import * as cdk from '@aws-cdk/core';\nimport { LITERAL_STRING_KEY } from '../util';\nimport { mergeStatements } from './merge-statements';\n\n/**\n * A Token postprocesser for policy documents\n *\n * Removes duplicate statements, merges statements, and assign Sids if necessary\n *\n * Because policy documents can contain all kinds of crazy things,\n * we do all the necessary work here after the document has been mostly resolved\n * into a predictable CloudFormation form.\n */\nexport class PostProcessPolicyDocument implements cdk.IPostProcessor {\n  constructor(private readonly autoAssignSids: boolean, private readonly minimize: boolean) {\n  }\n\n  public postProcess(input: any, _context: cdk.IResolveContext): any {\n    if (!input || !input.Statement) {\n      return input;\n    }\n\n    if (this.minimize) {\n      input.Statement = mergeStatements(input.Statement);\n    }\n\n    // Also remove full-on duplicates (this will not be necessary if\n    // we minimized, but it might still dedupe statements we didn't\n    // minimize like 'Deny' statements, and definitely is still necessary\n    // if we didn't minimize)\n    const jsonStatements = new Set<string>();\n    const uniqueStatements: any[] = [];\n\n    for (const statement of input.Statement) {\n      const jsonStatement = JSON.stringify(statement);\n      if (!jsonStatements.has(jsonStatement)) {\n        uniqueStatements.push(statement);\n        jsonStatements.add(jsonStatement);\n      }\n    }\n\n    // assign unique SIDs (the statement index) if `autoAssignSids` is enabled\n    const statements = uniqueStatements.map((s, i) => {\n      if (this.autoAssignSids && !s.Sid) {\n        s.Sid = i.toString();\n      }\n\n      return s;\n    });\n\n    return {\n      ...input,\n      Statement: statements,\n    };\n  }\n}\n\n// An IAM value is a string or a CloudFormation intrinsic\nexport type IamValue = string | Record<string, any> | Array<string | Record<string, any>>;\n\nexport interface StatementSchema {\n  readonly Sid?: string;\n  readonly Effect?: string;\n  readonly Principal?: Record<string, IamValue>;\n  readonly NotPrincipal?: Record<string, IamValue>;\n  readonly Resource?: IamValue;\n  readonly NotResource?: IamValue;\n  readonly Action?: IamValue;\n  readonly NotAction?: IamValue;\n  readonly Condition?: unknown;\n}\n\n\nexport function normalizeStatement(s: StatementSchema) {\n  return noUndef({\n    Action: _norm(s.Action, { unique: true }),\n    NotAction: _norm(s.NotAction, { unique: true }),\n    Condition: _norm(s.Condition),\n    Effect: _norm(s.Effect),\n    Principal: _normPrincipal(s.Principal),\n    NotPrincipal: _normPrincipal(s.NotPrincipal),\n    Resource: _norm(s.Resource, { unique: true }),\n    NotResource: _norm(s.NotResource, { unique: true }),\n    Sid: _norm(s.Sid),\n  });\n\n  function _norm(values: any, { unique = false }: { unique: boolean } = { unique: false }) {\n\n    if (values == null) {\n      return undefined;\n    }\n\n    if (cdk.Token.isUnresolved(values)) {\n      return values;\n    }\n\n    if (Array.isArray(values)) {\n      if (!values || values.length === 0) {\n        return undefined;\n      }\n\n      if (values.length === 1) {\n        return values[0];\n      }\n\n      return unique ? Array.from(new Set(values)) : values;\n    }\n\n    if (values && typeof(values) === 'object') {\n      if (Object.keys(values).length === 0) {\n        return undefined;\n      }\n    }\n\n    return values;\n  }\n\n  function _normPrincipal(principal?: { [key: string]: any }) {\n    if (!principal) { return undefined; }\n\n    const keys = Object.keys(principal);\n    if (keys.length === 0) { return undefined; }\n\n    // This is handling a special case for round-tripping a literal\n    // string principal loaded from JSON.\n    if (LITERAL_STRING_KEY in principal) {\n      return principal[LITERAL_STRING_KEY][0];\n    }\n\n    const result: any = {};\n    for (const key of keys) {\n      const normVal = _norm(principal[key]);\n      if (normVal) {\n        result[key] = normVal;\n      }\n    }\n    return result;\n  }\n}\n\nfunction noUndef(x: any): any {\n  const ret: any = {};\n  for (const [key, value] of Object.entries(x)) {\n    if (value !== undefined) {\n      ret[key] = value;\n    }\n  }\n  return ret;\n}\n"]}