@aws-cdk/cloud-assembly-schema
Version:
Schema for the protocol between CDK framework and CDK CLI
295 lines • 39.1 kB
JavaScript
;
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Manifest = exports.VERSION_MISMATCH = void 0;
const JSII_RTTI_SYMBOL_1 = Symbol.for("jsii.rtti");
const fs = require("fs");
const jsonschema = require("jsonschema");
const semver = require("semver");
const assembly = require("./cloud-assembly");
/* eslint-disable @typescript-eslint/no-var-requires */
/* eslint-disable @typescript-eslint/no-require-imports */
// this prefix is used by the CLI to identify this specific error.
// in which case we want to instruct the user to upgrade his CLI.
// see exec.ts#createAssembly
exports.VERSION_MISMATCH = 'Cloud assembly schema version mismatch';
/**
* CLI version is created at build and release time
*
* It needs to be .gitignore'd, otherwise the projen 'no uncommitted
* changes' self-check will fail, which means it needs to be generated
* at build time if it doesn't already exist.
*/
const CLI_VERSION = require("../cli-version.json");
const ASSETS_SCHEMA = require("../schema/assets.schema.json");
const ASSEMBLY_SCHEMA = require("../schema/cloud-assembly.schema.json");
const INTEG_SCHEMA = require("../schema/integ.schema.json");
/**
* Version is shared for both manifests
*/
const SCHEMA_VERSION = require("../schema/version.json");
/**
* Protocol utility class.
*/
class Manifest {
/**
* Validates and saves the cloud assembly manifest to file.
*
* @param manifest - manifest.
* @param filePath - output file path.
*/
static saveAssemblyManifest(manifest, filePath) {
Manifest.saveManifest(manifest, filePath, ASSEMBLY_SCHEMA, Manifest.patchStackTagsOnWrite);
}
/**
* Load and validates the cloud assembly manifest from file.
*
* @param filePath - path to the manifest file.
*/
static loadAssemblyManifest(filePath, options) {
return Manifest.loadManifest(filePath, ASSEMBLY_SCHEMA, Manifest.patchStackTagsOnRead, options);
}
/**
* Validates and saves the asset manifest to file.
*
* @param manifest - manifest.
* @param filePath - output file path.
*/
static saveAssetManifest(manifest, filePath) {
Manifest.saveManifest(manifest, filePath, ASSETS_SCHEMA, Manifest.patchStackTagsOnRead);
}
/**
* Load and validates the asset manifest from file.
*
* @param filePath - path to the manifest file.
*/
static loadAssetManifest(filePath) {
return this.loadManifest(filePath, ASSETS_SCHEMA);
}
/**
* Validates and saves the integ manifest to file.
*
* @param manifest - manifest.
* @param filePath - output file path.
*/
static saveIntegManifest(manifest, filePath) {
Manifest.saveManifest(manifest, filePath, INTEG_SCHEMA);
}
/**
* Load and validates the integ manifest from file.
*
* @param filePath - path to the manifest file.
*/
static loadIntegManifest(filePath) {
const manifest = this.loadManifest(filePath, INTEG_SCHEMA);
// Adding typing to `validate()` led to `loadManifest()` to properly infer
// its return type, which indicated that the return type of this
// function may be a lie. I could change the schema to make `testCases`
// optional, but that will bump the major version of this package and I
// don't want to do that. So instead, just make sure `testCases` is always there.
return {
...manifest,
testCases: manifest.testCases ?? [],
};
}
/**
* Fetch the current schema version number.
*/
static version() {
return `${SCHEMA_VERSION.revision}.0.0`;
}
/**
* Return the CLI version that supports this Cloud Assembly Schema version
*/
static cliVersion() {
const version = CLI_VERSION.version;
return version ? version : undefined;
}
/**
* Deprecated
* @deprecated use `saveAssemblyManifest()`
*/
static save(manifest, filePath) {
return this.saveAssemblyManifest(manifest, filePath);
}
/**
* Deprecated
* @deprecated use `loadAssemblyManifest()`
*/
static load(filePath) {
return this.loadAssemblyManifest(filePath);
}
static validate(manifest, schema, options) {
function parseVersion(version) {
const ver = semver.valid(version);
if (!ver) {
throw new Error(`Invalid semver string: "${version}"`);
}
return ver;
}
const maxSupported = semver.major(parseVersion(Manifest.version()));
const actual = parseVersion(manifest.version);
// first validate the version should be accepted. all versions within the same minor version are fine
if (maxSupported < semver.major(actual) && !options?.skipVersionCheck) {
// If we have a more specific error to throw than the generic one below, make sure to add that info.
const cliVersion = manifest.minimumCliVersion;
let cliWarning = '';
if (cliVersion) {
cliWarning = `. You need at least CLI version ${cliVersion} to read this manifest.`;
}
// we use a well known error prefix so that the CLI can identify this specific error
// and print some more context to the user.
throw new Error(`${exports.VERSION_MISMATCH}: Maximum schema version supported is ${maxSupported}.x.x, but found ${actual}${cliWarning}`);
}
// now validate the format is good.
const validator = new jsonschema.Validator();
const result = validator.validate(manifest, schema, {
// does exist but is not in the TypeScript definitions
nestedErrors: true,
allowUnknownAttributes: false,
preValidateProperty: Manifest.validateAssumeRoleAdditionalOptions,
});
let errors = result.errors;
if (options?.skipEnumCheck) {
// Enum validations aren't useful when
errors = stripEnumErrors(errors);
}
if (errors.length > 0) {
throw new Error(`Invalid assembly manifest:\n${errors.map((e) => e.stack).join('\n')}`);
}
}
static saveManifest(manifest, filePath, schema, preprocess) {
let withVersion = {
...manifest,
version: Manifest.version(),
minimumCliVersion: Manifest.cliVersion(),
};
Manifest.validate(withVersion, schema);
if (preprocess) {
withVersion = preprocess(withVersion);
}
fs.writeFileSync(filePath, JSON.stringify(withVersion, undefined, 2));
}
static loadManifest(filePath, schema, preprocess, options) {
const contents = fs.readFileSync(filePath, { encoding: 'utf-8' });
let obj;
try {
obj = JSON.parse(contents);
}
catch (e) {
throw new Error(`${e.message}, while parsing ${JSON.stringify(contents)}`);
}
if (preprocess) {
obj = preprocess(obj);
}
Manifest.validate(obj, schema, options);
return obj;
}
/**
* This requires some explaining...
*
* We previously used `{ Key, Value }` for the object that represents a stack tag. (Notice the casing)
* @link https://github.com/aws/aws-cdk/blob/v1.27.0/packages/aws-cdk/lib/api/cxapp/stacks.ts#L427.
*
* When that object moved to this package, it had to be JSII compliant, which meant the property
* names must be `camelCased`, and not `PascalCased`. This meant it no longer matches the structure in the `manifest.json` file.
* In order to support current manifest files, we have to translate the `PascalCased` representation to the new `camelCased` one.
*
* Note that the serialization itself still writes `PascalCased` because it relates to how CloudFormation expects it.
*
* Ideally, we would start writing the `camelCased` and translate to how CloudFormation expects it when needed. But this requires nasty
* backwards-compatibility code and it just doesn't seem to be worth the effort.
*/
static patchStackTagsOnRead(manifest) {
return Manifest.replaceStackTags(manifest, (tags) => tags.map((diskTag) => ({
key: diskTag.Key,
value: diskTag.Value,
})));
}
/**
* Validates that `assumeRoleAdditionalOptions` doesn't contain nor `ExternalId` neither `RoleArn`, as they
* should have dedicated properties preceding this (e.g `assumeRoleArn` and `assumeRoleExternalId`).
*/
static validateAssumeRoleAdditionalOptions(instance, key, _schema, _options, _ctx) {
if (key !== 'assumeRoleAdditionalOptions') {
// note that this means that if we happen to have a property named like this, but that
// does want to allow 'RoleArn' or 'ExternalId', this code will have to change to consider the full schema path.
// I decided to make this less granular for now on purpose because it fits our needs and avoids having messy
// validation logic due to various schema paths.
return;
}
const assumeRoleOptions = instance[key];
if (assumeRoleOptions?.RoleArn) {
throw new Error(`RoleArn is not allowed inside '${key}'`);
}
if (assumeRoleOptions?.ExternalId) {
throw new Error(`ExternalId is not allowed inside '${key}'`);
}
}
/**
* See explanation on `patchStackTagsOnRead`
*
* Translate stack tags metadata if it has the "right" casing.
*/
static patchStackTagsOnWrite(manifest) {
return Manifest.replaceStackTags(manifest, (tags) => tags.map((memTag) =>
// Might already be uppercased (because stack synthesis generates it in final form yet)
('Key' in memTag ? memTag : { Key: memTag.key, Value: memTag.value })));
}
/**
* Recursively replace stack tags in the stack metadata
*/
static replaceStackTags(manifest, fn) {
// Need to add in the `noUndefined`s because otherwise jest snapshot tests are going to freak out
// about the keys with values that are `undefined` (even though they would never be JSON.stringified)
return noUndefined({
...manifest,
artifacts: mapValues(manifest.artifacts, (artifact) => {
if (artifact.type !== assembly.ArtifactType.AWS_CLOUDFORMATION_STACK) {
return artifact;
}
return noUndefined({
...artifact,
metadata: mapValues(artifact.metadata, (metadataEntries) => metadataEntries.map((metadataEntry) => {
if (metadataEntry.type !== assembly.ArtifactMetadataEntryType.STACK_TAGS ||
!metadataEntry.data) {
return metadataEntry;
}
return {
...metadataEntry,
data: fn(metadataEntry.data),
};
})),
});
}),
});
}
constructor() {
}
}
exports.Manifest = Manifest;
_a = JSII_RTTI_SYMBOL_1;
Manifest[_a] = { fqn: "@aws-cdk/cloud-assembly-schema.Manifest", version: "48.3.0" };
function mapValues(xs, fn) {
if (!xs) {
return undefined;
}
const ret = {};
for (const [k, v] of Object.entries(xs)) {
ret[k] = fn(v);
}
return ret;
}
function noUndefined(xs) {
const ret = {};
for (const [k, v] of Object.entries(xs)) {
if (v !== undefined) {
ret[k] = v;
}
}
return ret;
}
function stripEnumErrors(errors) {
return errors.filter((e) => typeof e.schema === 'string' || !('enum' in e.schema));
}
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* as fs from 'fs';\nimport * as jsonschema from 'jsonschema';\nimport * as semver from 'semver';\nimport type * as assets from './assets';\nimport * as assembly from './cloud-assembly';\nimport type * as integ from './integ-tests';\n\n/* eslint-disable @typescript-eslint/no-var-requires */\n/* eslint-disable @typescript-eslint/no-require-imports */\n\n// this prefix is used by the CLI to identify this specific error.\n// in which case we want to instruct the user to upgrade his CLI.\n// see exec.ts#createAssembly\nexport const VERSION_MISMATCH: string = 'Cloud assembly schema version mismatch';\n\n/**\n * CLI version is created at build and release time\n *\n * It needs to be .gitignore'd, otherwise the projen 'no uncommitted\n * changes' self-check will fail, which means it needs to be generated\n * at build time if it doesn't already exist.\n */\nimport CLI_VERSION = require('../cli-version.json');\n\nimport ASSETS_SCHEMA = require('../schema/assets.schema.json');\n\nimport ASSEMBLY_SCHEMA = require('../schema/cloud-assembly.schema.json');\n\nimport INTEG_SCHEMA = require('../schema/integ.schema.json');\n\n/**\n * Version is shared for both manifests\n */\nimport SCHEMA_VERSION = require('../schema/version.json');\n\n/**\n * Options for the loadManifest operation\n */\nexport interface LoadManifestOptions {\n  /**\n   * Skip the version check\n   *\n   * This means you may read a newer cloud assembly than the CX API is designed\n   * to support, and your application may not be aware of all features that in use\n   * in the Cloud Assembly.\n   *\n   * @default false\n   */\n  readonly skipVersionCheck?: boolean;\n\n  /**\n   * Skip enum checks\n   *\n   * This means you may read enum values you don't know about yet. Make sure to always\n   * check the values of enums you encounter in the manifest.\n   *\n   * @default false\n   */\n  readonly skipEnumCheck?: boolean;\n\n  /**\n   * Topologically sort all artifacts\n   *\n   * This parameter is only respected by the constructor of `CloudAssembly`. The\n   * property lives here for backwards compatibility reasons.\n   *\n   * @default true\n   */\n  readonly topoSort?: boolean;\n}\n\n/**\n * Protocol utility class.\n */\nexport class Manifest {\n  /**\n   * Validates and saves the cloud assembly manifest to file.\n   *\n   * @param manifest - manifest.\n   * @param filePath - output file path.\n   */\n  public static saveAssemblyManifest(manifest: assembly.AssemblyManifest, filePath: string) {\n    Manifest.saveManifest(manifest, filePath, ASSEMBLY_SCHEMA, Manifest.patchStackTagsOnWrite);\n  }\n\n  /**\n   * Load and validates the cloud assembly manifest from file.\n   *\n   * @param filePath - path to the manifest file.\n   */\n  public static loadAssemblyManifest(\n    filePath: string,\n    options?: LoadManifestOptions,\n  ): assembly.AssemblyManifest {\n    return Manifest.loadManifest(filePath, ASSEMBLY_SCHEMA, Manifest.patchStackTagsOnRead, options);\n  }\n\n  /**\n   * Validates and saves the asset manifest to file.\n   *\n   * @param manifest - manifest.\n   * @param filePath - output file path.\n   */\n  public static saveAssetManifest(manifest: assets.AssetManifest, filePath: string) {\n    Manifest.saveManifest(manifest, filePath, ASSETS_SCHEMA, Manifest.patchStackTagsOnRead);\n  }\n\n  /**\n   * Load and validates the asset manifest from file.\n   *\n   * @param filePath - path to the manifest file.\n   */\n  public static loadAssetManifest(filePath: string): assets.AssetManifest {\n    return this.loadManifest(filePath, ASSETS_SCHEMA);\n  }\n\n  /**\n   * Validates and saves the integ manifest to file.\n   *\n   * @param manifest - manifest.\n   * @param filePath - output file path.\n   */\n  public static saveIntegManifest(manifest: integ.IntegManifest, filePath: string) {\n    Manifest.saveManifest(manifest, filePath, INTEG_SCHEMA);\n  }\n\n  /**\n   * Load and validates the integ manifest from file.\n   *\n   * @param filePath - path to the manifest file.\n   */\n  public static loadIntegManifest(filePath: string): integ.IntegManifest {\n    const manifest = this.loadManifest(filePath, INTEG_SCHEMA);\n\n    // Adding typing to `validate()` led to `loadManifest()` to properly infer\n    // its return type, which indicated that the return type of this\n    // function may be a lie. I could change the schema to make `testCases`\n    // optional, but that will bump the major version of this package and I\n    // don't want to do that. So instead, just make sure `testCases` is always there.\n    return {\n      ...manifest,\n      testCases: (manifest as any).testCases ?? [],\n    };\n  }\n\n  /**\n   * Fetch the current schema version number.\n   */\n  public static version(): string {\n    return `${SCHEMA_VERSION.revision}.0.0`;\n  }\n\n  /**\n   * Return the CLI version that supports this Cloud Assembly Schema version\n   */\n  public static cliVersion(): string | undefined {\n    const version = CLI_VERSION.version;\n    return version ? version : undefined;\n  }\n\n  /**\n   * Deprecated\n   * @deprecated use `saveAssemblyManifest()`\n   */\n  public static save(manifest: assembly.AssemblyManifest, filePath: string) {\n    return this.saveAssemblyManifest(manifest, filePath);\n  }\n\n  /**\n   * Deprecated\n   * @deprecated use `loadAssemblyManifest()`\n   */\n  public static load(filePath: string): assembly.AssemblyManifest {\n    return this.loadAssemblyManifest(filePath);\n  }\n\n  private static validate(\n    manifest: any,\n    schema: jsonschema.Schema,\n    options?: LoadManifestOptions,\n  ): asserts manifest is assembly.AssemblyManifest {\n    function parseVersion(version: string) {\n      const ver = semver.valid(version);\n      if (!ver) {\n        throw new Error(`Invalid semver string: \"${version}\"`);\n      }\n      return ver;\n    }\n\n    const maxSupported = semver.major(parseVersion(Manifest.version()));\n    const actual = parseVersion(manifest.version);\n\n    // first validate the version should be accepted. all versions within the same minor version are fine\n    if (maxSupported < semver.major(actual) && !options?.skipVersionCheck) {\n      // If we have a more specific error to throw than the generic one below, make sure to add that info.\n      const cliVersion = (manifest as assembly.AssemblyManifest).minimumCliVersion;\n      let cliWarning = '';\n      if (cliVersion) {\n        cliWarning = `. You need at least CLI version ${cliVersion} to read this manifest.`;\n      }\n\n      // we use a well known error prefix so that the CLI can identify this specific error\n      // and print some more context to the user.\n      throw new Error(\n        `${VERSION_MISMATCH}: Maximum schema version supported is ${maxSupported}.x.x, but found ${actual}${cliWarning}`,\n      );\n    }\n\n    // now validate the format is good.\n    const validator = new jsonschema.Validator();\n    const result = validator.validate(manifest, schema, {\n      // does exist but is not in the TypeScript definitions\n      nestedErrors: true,\n\n      allowUnknownAttributes: false,\n      preValidateProperty: Manifest.validateAssumeRoleAdditionalOptions,\n    });\n\n    let errors = result.errors;\n    if (options?.skipEnumCheck) {\n      // Enum validations aren't useful when\n      errors = stripEnumErrors(errors);\n    }\n\n    if (errors.length > 0) {\n      throw new Error(`Invalid assembly manifest:\\n${errors.map((e) => e.stack).join('\\n')}`);\n    }\n  }\n\n  private static saveManifest(\n    manifest: any,\n    filePath: string,\n    schema: jsonschema.Schema,\n    preprocess?: (obj: any) => any,\n  ) {\n    let withVersion = {\n      ...manifest,\n      version: Manifest.version(),\n      minimumCliVersion: Manifest.cliVersion(),\n    } satisfies assembly.AssemblyManifest;\n    Manifest.validate(withVersion, schema);\n    if (preprocess) {\n      withVersion = preprocess(withVersion);\n    }\n    fs.writeFileSync(filePath, JSON.stringify(withVersion, undefined, 2));\n  }\n\n  private static loadManifest(\n    filePath: string,\n    schema: jsonschema.Schema,\n    preprocess?: (obj: any) => any,\n    options?: LoadManifestOptions,\n  ) {\n    const contents = fs.readFileSync(filePath, { encoding: 'utf-8' });\n    let obj;\n    try {\n      obj = JSON.parse(contents);\n    } catch (e: any) {\n      throw new Error(`${e.message}, while parsing ${JSON.stringify(contents)}`);\n    }\n    if (preprocess) {\n      obj = preprocess(obj);\n    }\n    Manifest.validate(obj, schema, options);\n    return obj;\n  }\n\n  /**\n   * This requires some explaining...\n   *\n   * We previously used `{ Key, Value }` for the object that represents a stack tag. (Notice the casing)\n   * @link https://github.com/aws/aws-cdk/blob/v1.27.0/packages/aws-cdk/lib/api/cxapp/stacks.ts#L427.\n   *\n   * When that object moved to this package, it had to be JSII compliant, which meant the property\n   * names must be `camelCased`, and not `PascalCased`. This meant it no longer matches the structure in the `manifest.json` file.\n   * In order to support current manifest files, we have to translate the `PascalCased` representation to the new `camelCased` one.\n   *\n   * Note that the serialization itself still writes `PascalCased` because it relates to how CloudFormation expects it.\n   *\n   * Ideally, we would start writing the `camelCased` and translate to how CloudFormation expects it when needed. But this requires nasty\n   * backwards-compatibility code and it just doesn't seem to be worth the effort.\n   */\n  private static patchStackTagsOnRead(this: void, manifest: assembly.AssemblyManifest) {\n    return Manifest.replaceStackTags(manifest, (tags) =>\n      tags.map((diskTag: any) => ({\n        key: diskTag.Key,\n        value: diskTag.Value,\n      })),\n    );\n  }\n\n  /**\n   * Validates that `assumeRoleAdditionalOptions` doesn't contain nor `ExternalId` neither `RoleArn`, as they\n   * should have dedicated properties preceding this (e.g `assumeRoleArn` and `assumeRoleExternalId`).\n   */\n  private static validateAssumeRoleAdditionalOptions(\n    this: void,\n    instance: any,\n    key: string,\n    _schema: jsonschema.Schema,\n    _options: jsonschema.Options,\n    _ctx: jsonschema.SchemaContext,\n  ) {\n    if (key !== 'assumeRoleAdditionalOptions') {\n      // note that this means that if we happen to have a property named like this, but that\n      // does want to allow 'RoleArn' or 'ExternalId', this code will have to change to consider the full schema path.\n      // I decided to make this less granular for now on purpose because it fits our needs and avoids having messy\n      // validation logic due to various schema paths.\n      return;\n    }\n\n    const assumeRoleOptions = instance[key];\n    if (assumeRoleOptions?.RoleArn) {\n      throw new Error(`RoleArn is not allowed inside '${key}'`);\n    }\n    if (assumeRoleOptions?.ExternalId) {\n      throw new Error(`ExternalId is not allowed inside '${key}'`);\n    }\n  }\n\n  /**\n   * See explanation on `patchStackTagsOnRead`\n   *\n   * Translate stack tags metadata if it has the \"right\" casing.\n   */\n  private static patchStackTagsOnWrite(this: void, manifest: assembly.AssemblyManifest) {\n    return Manifest.replaceStackTags(manifest, (tags) =>\n      tags.map(\n        (memTag) =>\n          // Might already be uppercased (because stack synthesis generates it in final form yet)\n          ('Key' in memTag ? memTag : { Key: memTag.key, Value: memTag.value }) as any,\n      ),\n    );\n  }\n\n  /**\n   * Recursively replace stack tags in the stack metadata\n   */\n  private static replaceStackTags(\n    manifest: assembly.AssemblyManifest,\n    fn: Endofunctor<assembly.StackTagsMetadataEntry>,\n  ): assembly.AssemblyManifest {\n    // Need to add in the `noUndefined`s because otherwise jest snapshot tests are going to freak out\n    // about the keys with values that are `undefined` (even though they would never be JSON.stringified)\n    return noUndefined({\n      ...manifest,\n      artifacts: mapValues(manifest.artifacts, (artifact) => {\n        if (artifact.type !== assembly.ArtifactType.AWS_CLOUDFORMATION_STACK) {\n          return artifact;\n        }\n        return noUndefined({\n          ...artifact,\n          metadata: mapValues(artifact.metadata, (metadataEntries) =>\n            metadataEntries.map((metadataEntry) => {\n              if (\n                metadataEntry.type !== assembly.ArtifactMetadataEntryType.STACK_TAGS ||\n                !metadataEntry.data\n              ) {\n                return metadataEntry;\n              }\n              return {\n                ...metadataEntry,\n                data: fn(metadataEntry.data as assembly.StackTagsMetadataEntry),\n              };\n            }),\n          ),\n        } as assembly.ArtifactManifest);\n      }),\n    });\n  }\n\n  private constructor() {\n  }\n}\n\ntype Endofunctor<A> = (x: A) => A;\n\nfunction mapValues<A, B>(\n  xs: Record<string, A> | undefined,\n  fn: (x: A) => B,\n): Record<string, B> | undefined {\n  if (!xs) {\n    return undefined;\n  }\n  const ret: Record<string, B> | undefined = {};\n  for (const [k, v] of Object.entries(xs)) {\n    ret[k] = fn(v);\n  }\n  return ret;\n}\n\nfunction noUndefined<A extends object>(xs: A): A {\n  const ret: any = {};\n  for (const [k, v] of Object.entries(xs)) {\n    if (v !== undefined) {\n      ret[k] = v;\n    }\n  }\n  return ret;\n}\n\nfunction stripEnumErrors(errors: jsonschema.ValidationError[]) {\n  return errors.filter((e) => typeof e.schema === 'string' || !('enum' in e.schema));\n}\n"]}