Initial commit - Event Planner application

node_modules/@nestjs/common/pipes/file/file-type.validator.d.ts

@@ -0,0 +1,62 @@
+import { FileValidatorContext } from './file-validator-context.interface';
+import { FileValidator } from './file-validator.interface';
+import { IFile } from './interfaces';
+type FileTypeValidatorContext = FileValidatorContext<Omit<FileTypeValidatorOptions, 'errorMessage'>>;
+export type FileTypeValidatorOptions = {
+    /**
+     * Expected file type(s) for validation. Can be a string (MIME type)
+     * or a regular expression to match multiple types.
+     *
+     * @example
+     * // Match a single MIME type
+     * fileType: 'image/png'
+     *
+     * @example
+     * // Match multiple types using RegExp
+     * fileType: /^image\/(png|jpeg)$/
+     */
+    fileType: string | RegExp;
+    /**
+     * Custom error message displayed when file type validation fails
+     * Can be provided as a static string, or as a factory function
+     * that receives the validation context (file and validator configuration)
+     * and returns a dynamic error message.
+     *
+     * @example
+     * // Static message
+     * new FileTypeValidator({ fileType: 'image/png', errorMessage: 'Only PNG allowed' })
+     *
+     * @example
+     * // Dynamic message based on file object and validator configuration
+     * new FileTypeValidator({
+     *   fileType: 'image/png',
+     *   errorMessage: ctx => `Received file type '${ctx.file?.mimetype}', but expected '${ctx.config.fileType}'`
+     * })
+     */
+    errorMessage?: string | ((ctx: FileTypeValidatorContext) => string);
+    /**
+     * If `true`, the validator will skip the magic numbers validation.
+     * This can be useful when you can't identify some files as there are no common magic numbers available for some file types.
+     * @default false
+     */
+    skipMagicNumbersValidation?: boolean;
+    /**
+     * If `true`, and magic number check fails, fallback to mimetype comparison.
+     * @default false
+     */
+    fallbackToMimetype?: boolean;
+};
+/**
+ * Defines the built-in FileTypeValidator. It validates incoming files by examining
+ * their magic numbers using the file-type package, providing more reliable file type validation
+ * than just checking the mimetype string.
+ *
+ * @see [File Validators](https://docs.nestjs.com/techniques/file-upload#validators)
+ *
+ * @publicApi
+ */
+export declare class FileTypeValidator extends FileValidator<FileTypeValidatorOptions, IFile> {
+    buildErrorMessage(file?: IFile): string;
+    isValid(file?: IFile): Promise<boolean>;
+}
+export {};

node_modules/@nestjs/common/pipes/file/file-type.validator.js

@@ -0,0 +1,102 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FileTypeValidator = void 0;
+const url_1 = require("url");
+const logger_service_1 = require("../../services/logger.service");
+const file_validator_interface_1 = require("./file-validator.interface");
+const load_esm_1 = require("load-esm");
+const logger = new logger_service_1.Logger('FileTypeValidator');
+/**
+ * Defines the built-in FileTypeValidator. It validates incoming files by examining
+ * their magic numbers using the file-type package, providing more reliable file type validation
+ * than just checking the mimetype string.
+ *
+ * @see [File Validators](https://docs.nestjs.com/techniques/file-upload#validators)
+ *
+ * @publicApi
+ */
+class FileTypeValidator extends file_validator_interface_1.FileValidator {
+    buildErrorMessage(file) {
+        const { errorMessage, ...config } = this.validationOptions;
+        if (errorMessage) {
+            return typeof errorMessage === 'function'
+                ? errorMessage({ file, config })
+                : errorMessage;
+        }
+        if (file?.mimetype) {
+            const baseMessage = `Validation failed (current file type is ${file.mimetype}, expected type is ${this.validationOptions.fileType})`;
+            /**
+             * If fallbackToMimetype is enabled, this means the validator failed to detect the file type
+             * via magic number inspection (e.g. due to an unknown or too short buffer),
+             * and instead used the mimetype string provided by the client as a fallback.
+             *
+             * This message clarifies that fallback logic was used, in case users rely on file signatures.
+             */
+            if (this.validationOptions.fallbackToMimetype) {
+                return `${baseMessage} - magic number detection failed, used mimetype fallback`;
+            }
+            return baseMessage;
+        }
+        return `Validation failed (expected type is ${this.validationOptions.fileType})`;
+    }
+    async isValid(file) {
+        if (!this.validationOptions) {
+            return true;
+        }
+        const isFileValid = !!file && 'mimetype' in file;
+        // Skip magic number validation if set
+        if (this.validationOptions.skipMagicNumbersValidation) {
+            return (isFileValid && !!file.mimetype.match(this.validationOptions.fileType));
+        }
+        if (!isFileValid)
+            return false;
+        if (!file.buffer) {
+            if (this.validationOptions.fallbackToMimetype) {
+                return !!file.mimetype.match(this.validationOptions.fileType);
+            }
+            return false;
+        }
+        try {
+            let fileTypeModule;
+            try {
+                const resolvedPath = require.resolve('file-type');
+                fileTypeModule = (0, url_1.pathToFileURL)(resolvedPath).href;
+            }
+            catch {
+                fileTypeModule = 'file-type';
+            }
+            const { fileTypeFromBuffer } = await (0, load_esm_1.loadEsm)(fileTypeModule);
+            const fileType = await fileTypeFromBuffer(file.buffer);
+            if (fileType) {
+                // Match detected mime type against allowed type
+                return !!fileType.mime.match(this.validationOptions.fileType);
+            }
+            /**
+             * Fallback logic: If file-type cannot detect magic number (e.g. file too small),
+             * Optionally fall back to mimetype string for compatibility.
+             * This is useful for plain text, CSVs, or files without recognizable signatures.
+             */
+            if (this.validationOptions.fallbackToMimetype) {
+                return !!file.mimetype.match(this.validationOptions.fileType);
+            }
+            return false;
+        }
+        catch (error) {
+            const errorMessage = error instanceof Error ? error.message : String(error);
+            // Check for common ESM loading issues
+            if (errorMessage.includes('ERR_VM_DYNAMIC_IMPORT_CALLBACK_MISSING') ||
+                errorMessage.includes('Cannot find module') ||
+                errorMessage.includes('ERR_MODULE_NOT_FOUND')) {
+                logger.warn(`Failed to load the "file-type" package for magic number validation. ` +
+                    `If you are using Jest, run it with NODE_OPTIONS="--experimental-vm-modules". ` +
+                    `Error: ${errorMessage}`);
+            }
+            // Fallback to mimetype if enabled
+            if (this.validationOptions.fallbackToMimetype) {
+                return !!file.mimetype.match(this.validationOptions.fileType);
+            }
+            return false;
+        }
+    }
+}
+exports.FileTypeValidator = FileTypeValidator;

node_modules/@nestjs/common/pipes/file/file-validator-context.interface.d.ts

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+import { IFile } from './interfaces';
+export type FileValidatorContext<TConfig> = {
+    file?: IFile;
+    config: TConfig;
+};

node_modules/@nestjs/common/pipes/file/file-validator-context.interface.js

@@ -0,0 +1,2 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

node_modules/@nestjs/common/pipes/file/file-validator.interface.d.ts

@@ -0,0 +1,21 @@
+import { IFile } from './interfaces';
+/**
+ * Interface describing FileValidators, which can be added to a ParseFilePipe
+ *
+ * @see {ParseFilePipe}
+ * @publicApi
+ */
+export declare abstract class FileValidator<TValidationOptions = Record<string, any>, TFile extends IFile = IFile> {
+    protected readonly validationOptions: TValidationOptions;
+    constructor(validationOptions: TValidationOptions);
+    /**
+     * Indicates if this file should be considered valid, according to the options passed in the constructor.
+     * @param file the file from the request object
+     */
+    abstract isValid(file?: TFile | TFile[] | Record<string, TFile[]>): boolean | Promise<boolean>;
+    /**
+     * Builds an error message in case the validation fails.
+     * @param file the file from the request object
+     */
+    abstract buildErrorMessage(file: any): string;
+}

node_modules/@nestjs/common/pipes/file/file-validator.interface.js

@@ -0,0 +1,15 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FileValidator = void 0;
+/**
+ * Interface describing FileValidators, which can be added to a ParseFilePipe
+ *
+ * @see {ParseFilePipe}
+ * @publicApi
+ */
+class FileValidator {
+    constructor(validationOptions) {
+        this.validationOptions = validationOptions;
+    }
+}
+exports.FileValidator = FileValidator;

node_modules/@nestjs/common/pipes/file/index.d.ts

@@ -0,0 +1,6 @@
+export * from './file-type.validator';
+export * from './file-validator.interface';
+export * from './max-file-size.validator';
+export * from './parse-file-options.interface';
+export * from './parse-file.pipe';
+export * from './parse-file-pipe.builder';

node_modules/@nestjs/common/pipes/file/index.js

@@ -0,0 +1,9 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const tslib_1 = require("tslib");
+tslib_1.__exportStar(require("./file-type.validator"), exports);
+tslib_1.__exportStar(require("./file-validator.interface"), exports);
+tslib_1.__exportStar(require("./max-file-size.validator"), exports);
+tslib_1.__exportStar(require("./parse-file-options.interface"), exports);
+tslib_1.__exportStar(require("./parse-file.pipe"), exports);
+tslib_1.__exportStar(require("./parse-file-pipe.builder"), exports);

node_modules/@nestjs/common/pipes/file/interfaces/file.interface.d.ts

@@ -0,0 +1,5 @@
+export interface IFile {
+    mimetype: string;
+    size: number;
+    buffer?: Buffer;
+}

node_modules/@nestjs/common/pipes/file/interfaces/file.interface.js

@@ -0,0 +1,2 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

node_modules/@nestjs/common/pipes/file/interfaces/index.d.ts

@@ -0,0 +1 @@
+export * from './file.interface';

node_modules/@nestjs/common/pipes/file/interfaces/index.js

@@ -0,0 +1,4 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const tslib_1 = require("tslib");
+tslib_1.__exportStar(require("./file.interface"), exports);

node_modules/@nestjs/common/pipes/file/max-file-size.validator.d.ts

@@ -0,0 +1,44 @@
+import { FileValidatorContext } from './file-validator-context.interface';
+import { FileValidator } from './file-validator.interface';
+import { IFile } from './interfaces';
+type MaxFileSizeValidatorContext = FileValidatorContext<Omit<MaxFileSizeValidatorOptions, 'errorMessage' | 'message'>>;
+export type MaxFileSizeValidatorOptions = {
+    /**
+     * Maximum allowed file size in bytes.
+     */
+    maxSize: number;
+    /**
+     * @deprecated Use `errorMessage` instead.
+     */
+    message?: string | ((maxSize: number) => string);
+    /**
+     * Custom error message returned when file size validation fails.
+     * Can be provided as a static string, or as a factory function
+     * that receives the validation context (file and validator configuration)
+     * and returns a dynamic error message.
+     *
+     * @example
+     * // Static message
+     * new MaxFileSizeValidator({ maxSize: 1000, errorMessage: 'File size exceeds the limit' })
+     *
+     * @example
+     * // Dynamic message based on file object and validator configuration
+     * new MaxFileSizeValidator({
+     *   maxSize: 1000,
+     *   errorMessage: ctx => `Received file size is ${ctx.file?.size}, but it must be smaller than ${ctx.config.maxSize}.`
+     * })
+     */
+    errorMessage?: string | ((ctx: MaxFileSizeValidatorContext) => string);
+};
+/**
+ * Defines the built-in MaxSize File Validator
+ *
+ * @see [File Validators](https://docs.nestjs.com/techniques/file-upload#file-validation)
+ *
+ * @publicApi
+ */
+export declare class MaxFileSizeValidator extends FileValidator<MaxFileSizeValidatorOptions, IFile> {
+    buildErrorMessage(file?: IFile): string;
+    isValid(file?: IFile): boolean;
+}
+export {};

node_modules/@nestjs/common/pipes/file/max-file-size.validator.js

@@ -0,0 +1,37 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MaxFileSizeValidator = void 0;
+const file_validator_interface_1 = require("./file-validator.interface");
+/**
+ * Defines the built-in MaxSize File Validator
+ *
+ * @see [File Validators](https://docs.nestjs.com/techniques/file-upload#file-validation)
+ *
+ * @publicApi
+ */
+class MaxFileSizeValidator extends file_validator_interface_1.FileValidator {
+    buildErrorMessage(file) {
+        const { errorMessage, message, ...config } = this.validationOptions;
+        if (errorMessage) {
+            return typeof errorMessage === 'function'
+                ? errorMessage({ file, config })
+                : errorMessage;
+        }
+        if (message) {
+            return typeof message === 'function'
+                ? message(this.validationOptions.maxSize)
+                : message;
+        }
+        if (file?.size) {
+            return `Validation failed (current file size is ${file.size}, expected size is less than ${this.validationOptions.maxSize})`;
+        }
+        return `Validation failed (expected size is less than ${this.validationOptions.maxSize})`;
+    }
+    isValid(file) {
+        if (!this.validationOptions || !file) {
+            return true;
+        }
+        return 'size' in file && file.size < this.validationOptions.maxSize;
+    }
+}
+exports.MaxFileSizeValidator = MaxFileSizeValidator;

node_modules/@nestjs/common/pipes/file/parse-file-options.interface.d.ts

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+import { ErrorHttpStatusCode } from '../../utils/http-error-by-code.util';
+import { FileValidator } from './file-validator.interface';
+/**
+ * @publicApi
+ */
+export interface ParseFileOptions {
+    validators?: FileValidator[];
+    errorHttpStatusCode?: ErrorHttpStatusCode;
+    exceptionFactory?: (error: string) => any;
+    /**
+     * Defines if file parameter is required.
+     * @default true
+     */
+    fileIsRequired?: boolean;
+}

node_modules/@nestjs/common/pipes/file/parse-file-options.interface.js

@@ -0,0 +1,2 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

node_modules/@nestjs/common/pipes/file/parse-file-pipe.builder.d.ts

@@ -0,0 +1,15 @@
+import { FileTypeValidatorOptions } from './file-type.validator';
+import { FileValidator } from './file-validator.interface';
+import { MaxFileSizeValidatorOptions } from './max-file-size.validator';
+import { ParseFileOptions } from './parse-file-options.interface';
+import { ParseFilePipe } from './parse-file.pipe';
+/**
+ * @publicApi
+ */
+export declare class ParseFilePipeBuilder {
+    private validators;
+    addMaxSizeValidator(options: MaxFileSizeValidatorOptions): this;
+    addFileTypeValidator(options: FileTypeValidatorOptions): this;
+    addValidator(validator: FileValidator): this;
+    build(additionalOptions?: Omit<ParseFileOptions, 'validators'>): ParseFilePipe;
+}

node_modules/@nestjs/common/pipes/file/parse-file-pipe.builder.js

@@ -0,0 +1,33 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ParseFilePipeBuilder = void 0;
+const file_type_validator_1 = require("./file-type.validator");
+const max_file_size_validator_1 = require("./max-file-size.validator");
+const parse_file_pipe_1 = require("./parse-file.pipe");
+/**
+ * @publicApi
+ */
+class ParseFilePipeBuilder {
+    constructor() {
+        this.validators = [];
+    }
+    addMaxSizeValidator(options) {
+        return this.addValidator(new max_file_size_validator_1.MaxFileSizeValidator(options));
+    }
+    addFileTypeValidator(options) {
+        return this.addValidator(new file_type_validator_1.FileTypeValidator(options));
+    }
+    addValidator(validator) {
+        this.validators.push(validator);
+        return this;
+    }
+    build(additionalOptions) {
+        const parseFilePipe = new parse_file_pipe_1.ParseFilePipe({
+            ...additionalOptions,
+            validators: this.validators,
+        });
+        this.validators = [];
+        return parseFilePipe;
+    }
+}
+exports.ParseFilePipeBuilder = ParseFilePipeBuilder;

node_modules/@nestjs/common/pipes/file/parse-file.pipe.d.ts

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+import { PipeTransform } from '../../interfaces/features/pipe-transform.interface';
+import { FileValidator } from './file-validator.interface';
+import { ParseFileOptions } from './parse-file-options.interface';
+/**
+ * Defines the built-in ParseFile Pipe. This pipe can be used to validate incoming files
+ * with `@UploadedFile()` decorator. You can use either other specific built-in validators
+ * or provide one of your own, simply implementing it through FileValidator interface
+ * and adding it to ParseFilePipe's constructor.
+ *
+ * @see [Built-in Pipes](https://docs.nestjs.com/pipes#built-in-pipes)
+ *
+ * @publicApi
+ */
+export declare class ParseFilePipe implements PipeTransform<any> {
+    protected exceptionFactory: (error: string) => any;
+    private readonly validators;
+    private readonly fileIsRequired;
+    constructor(options?: ParseFileOptions);
+    transform(value: any): Promise<any>;
+    private validateFilesOrFile;
+    private thereAreNoFilesIn;
+    protected validate(file: any): Promise<any>;
+    private validateOrThrow;
+    /**
+     * @returns list of validators used in this pipe.
+     */
+    getValidators(): FileValidator<Record<string, any>, import("./interfaces").IFile>[];
+}

node_modules/@nestjs/common/pipes/file/parse-file.pipe.js

@@ -0,0 +1,76 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ParseFilePipe = void 0;
+const tslib_1 = require("tslib");
+const core_1 = require("../../decorators/core");
+const enums_1 = require("../../enums");
+const http_error_by_code_util_1 = require("../../utils/http-error-by-code.util");
+const shared_utils_1 = require("../../utils/shared.utils");
+/**
+ * Defines the built-in ParseFile Pipe. This pipe can be used to validate incoming files
+ * with `@UploadedFile()` decorator. You can use either other specific built-in validators
+ * or provide one of your own, simply implementing it through FileValidator interface
+ * and adding it to ParseFilePipe's constructor.
+ *
+ * @see [Built-in Pipes](https://docs.nestjs.com/pipes#built-in-pipes)
+ *
+ * @publicApi
+ */
+let ParseFilePipe = class ParseFilePipe {
+    constructor(options = {}) {
+        const { exceptionFactory, errorHttpStatusCode = enums_1.HttpStatus.BAD_REQUEST, validators = [], fileIsRequired, } = options;
+        this.exceptionFactory =
+            exceptionFactory ||
+                (error => new http_error_by_code_util_1.HttpErrorByCode[errorHttpStatusCode](error));
+        this.validators = validators;
+        this.fileIsRequired = fileIsRequired ?? true;
+    }
+    async transform(value) {
+        const areThereAnyFilesIn = this.thereAreNoFilesIn(value);
+        if (areThereAnyFilesIn && this.fileIsRequired) {
+            throw this.exceptionFactory('File is required');
+        }
+        if (!areThereAnyFilesIn && this.validators.length) {
+            await this.validateFilesOrFile(value);
+        }
+        return value;
+    }
+    async validateFilesOrFile(value) {
+        if (Array.isArray(value)) {
+            await Promise.all(value.map(f => this.validate(f)));
+        }
+        else {
+            await this.validate(value);
+        }
+    }
+    thereAreNoFilesIn(value) {
+        const isEmptyArray = Array.isArray(value) && (0, shared_utils_1.isEmpty)(value);
+        const isEmptyObject = (0, shared_utils_1.isObject)(value) && (0, shared_utils_1.isEmpty)(Object.keys(value));
+        return (0, shared_utils_1.isUndefined)(value) || isEmptyArray || isEmptyObject;
+    }
+    async validate(file) {
+        for (const validator of this.validators) {
+            await this.validateOrThrow(file, validator);
+        }
+        return file;
+    }
+    async validateOrThrow(file, validator) {
+        const isValid = await validator.isValid(file);
+        if (!isValid) {
+            const errorMessage = validator.buildErrorMessage(file);
+            throw this.exceptionFactory(errorMessage);
+        }
+    }
+    /**
+     * @returns list of validators used in this pipe.
+     */
+    getValidators() {
+        return this.validators;
+    }
+};
+exports.ParseFilePipe = ParseFilePipe;
+exports.ParseFilePipe = ParseFilePipe = tslib_1.__decorate([
+    (0, core_1.Injectable)(),
+    tslib_1.__param(0, (0, core_1.Optional)()),
+    tslib_1.__metadata("design:paramtypes", [Object])
+], ParseFilePipe);