1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.ExpressAdapter = void 0;
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4 | const common_1 = require("@nestjs/common");
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5 | const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
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6 | const http_adapter_1 = require("@nestjs/core/adapters/http-adapter");
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7 | const router_method_factory_1 = require("@nestjs/core/helpers/router-method-factory");
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8 | const body_parser_1 = require("body-parser");
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9 | const bodyparser = require("body-parser");
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10 | const cors = require("cors");
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11 | const express = require("express");
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12 | const http = require("http");
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13 | const https = require("https");
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14 | const stream_1 = require("stream");
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15 | const get_body_parser_options_util_1 = require("./utils/get-body-parser-options.util");
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16 |
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17 |
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18 |
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19 | class ExpressAdapter extends http_adapter_1.AbstractHttpAdapter {
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20 | constructor(instance) {
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21 | super(instance || express());
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22 | this.routerMethodFactory = new router_method_factory_1.RouterMethodFactory();
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23 | this.logger = new common_1.Logger(ExpressAdapter.name);
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24 | this.openConnections = new Set();
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25 | }
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26 | reply(response, body, statusCode) {
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27 | if (statusCode) {
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28 | response.status(statusCode);
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29 | }
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30 | if ((0, shared_utils_1.isNil)(body)) {
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31 | return response.send();
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32 | }
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33 | if (body instanceof common_1.StreamableFile) {
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34 | const streamHeaders = body.getHeaders();
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35 | if (response.getHeader('Content-Type') === undefined &&
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36 | streamHeaders.type !== undefined) {
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37 | response.setHeader('Content-Type', streamHeaders.type);
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38 | }
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39 | if (response.getHeader('Content-Disposition') === undefined &&
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40 | streamHeaders.disposition !== undefined) {
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41 | response.setHeader('Content-Disposition', streamHeaders.disposition);
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42 | }
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43 | if (response.getHeader('Content-Length') === undefined &&
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44 | streamHeaders.length !== undefined) {
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45 | response.setHeader('Content-Length', streamHeaders.length);
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46 | }
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47 | return (0, stream_1.pipeline)(body.getStream().once('error', (err) => {
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48 | body.errorHandler(err, response);
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49 | }), response, (err) => {
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50 | if (err) {
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51 | this.logger.error(err.message, err.stack);
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52 | }
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53 | });
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54 | }
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55 | if (response.getHeader('Content-Type') !== undefined &&
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56 | response.getHeader('Content-Type') !== 'application/json' &&
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57 | (body === null || body === void 0 ? void 0 : body.statusCode) >= common_1.HttpStatus.BAD_REQUEST) {
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58 | this.logger.warn("Content-Type doesn't match Reply body, you might need a custom ExceptionFilter for non-JSON responses");
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59 | response.setHeader('Content-Type', 'application/json');
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60 | }
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61 | return (0, shared_utils_1.isObject)(body) ? response.json(body) : response.send(String(body));
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62 | }
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63 | status(response, statusCode) {
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64 | return response.status(statusCode);
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65 | }
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66 | end(response, message) {
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67 | return response.end(message);
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68 | }
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69 | render(response, view, options) {
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70 | return response.render(view, options);
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71 | }
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72 | redirect(response, statusCode, url) {
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73 | return response.redirect(statusCode, url);
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74 | }
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75 | setErrorHandler(handler, prefix) {
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76 | return this.use(handler);
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77 | }
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78 | setNotFoundHandler(handler, prefix) {
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79 | return this.use(handler);
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80 | }
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81 | isHeadersSent(response) {
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82 | return response.headersSent;
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83 | }
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84 | setHeader(response, name, value) {
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85 | return response.set(name, value);
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86 | }
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87 | listen(port, ...args) {
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88 | return this.httpServer.listen(port, ...args);
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89 | }
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90 | close() {
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91 | this.closeOpenConnections();
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92 | if (!this.httpServer) {
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93 | return undefined;
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94 | }
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95 | return new Promise(resolve => this.httpServer.close(resolve));
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96 | }
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97 | set(...args) {
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98 | return this.instance.set(...args);
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99 | }
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100 | enable(...args) {
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101 | return this.instance.enable(...args);
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102 | }
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103 | disable(...args) {
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104 | return this.instance.disable(...args);
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105 | }
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106 | engine(...args) {
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107 | return this.instance.engine(...args);
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108 | }
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109 | useStaticAssets(path, options) {
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110 | if (options && options.prefix) {
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111 | return this.use(options.prefix, express.static(path, options));
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112 | }
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113 | return this.use(express.static(path, options));
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114 | }
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115 | setBaseViewsDir(path) {
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116 | return this.set('views', path);
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117 | }
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118 | setViewEngine(engine) {
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119 | return this.set('view engine', engine);
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120 | }
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121 | getRequestHostname(request) {
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122 | return request.hostname;
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123 | }
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124 | getRequestMethod(request) {
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125 | return request.method;
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126 | }
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127 | getRequestUrl(request) {
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128 | return request.originalUrl;
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129 | }
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130 | enableCors(options) {
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131 | return this.use(cors(options));
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132 | }
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133 | createMiddlewareFactory(requestMethod) {
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134 | return this.routerMethodFactory
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135 | .get(this.instance, requestMethod)
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136 | .bind(this.instance);
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137 | }
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138 | initHttpServer(options) {
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139 | const isHttpsEnabled = options && options.httpsOptions;
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140 | if (isHttpsEnabled) {
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141 | this.httpServer = https.createServer(options.httpsOptions, this.getInstance());
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142 | }
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143 | else {
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144 | this.httpServer = http.createServer(this.getInstance());
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145 | }
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146 | if (options === null || options === void 0 ? void 0 : options.forceCloseConnections) {
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147 | this.trackOpenConnections();
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148 | }
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149 | }
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150 | registerParserMiddleware(prefix, rawBody) {
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151 | const bodyParserJsonOptions = (0, get_body_parser_options_util_1.getBodyParserOptions)(rawBody);
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152 | const bodyParserUrlencodedOptions = (0, get_body_parser_options_util_1.getBodyParserOptions)(rawBody, { extended: true });
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153 | const parserMiddleware = {
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154 | jsonParser: (0, body_parser_1.json)(bodyParserJsonOptions),
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155 | urlencodedParser: (0, body_parser_1.urlencoded)(bodyParserUrlencodedOptions),
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156 | };
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157 | Object.keys(parserMiddleware)
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158 | .filter(parser => !this.isMiddlewareApplied(parser))
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159 | .forEach(parserKey => this.use(parserMiddleware[parserKey]));
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160 | }
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161 | useBodyParser(type, rawBody, options) {
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162 | const parserOptions = (0, get_body_parser_options_util_1.getBodyParserOptions)(rawBody, options || {});
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163 | const parser = bodyparser[type](parserOptions);
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164 | this.use(parser);
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165 | return this;
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166 | }
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167 | setLocal(key, value) {
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168 | this.instance.locals[key] = value;
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169 | return this;
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170 | }
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171 | getType() {
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172 | return 'express';
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173 | }
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174 | applyVersionFilter(handler, version, versioningOptions) {
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175 | const callNextHandler = (req, res, next) => {
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176 | if (!next) {
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177 | throw new common_1.InternalServerErrorException('HTTP adapter does not support filtering on version');
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178 | }
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179 | return next();
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180 | };
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181 | if (version === common_1.VERSION_NEUTRAL ||
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182 |
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183 | versioningOptions.type === common_1.VersioningType.URI) {
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184 | const handlerForNoVersioning = (req, res, next) => handler(req, res, next);
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185 | return handlerForNoVersioning;
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186 | }
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187 |
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188 | if (versioningOptions.type === common_1.VersioningType.CUSTOM) {
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189 | const handlerForCustomVersioning = (req, res, next) => {
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190 | const extractedVersion = versioningOptions.extractor(req);
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191 | if (Array.isArray(version)) {
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192 | if (Array.isArray(extractedVersion) &&
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193 | version.filter(v => extractedVersion.includes(v)).length) {
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194 | return handler(req, res, next);
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195 | }
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196 | if ((0, shared_utils_1.isString)(extractedVersion) &&
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197 | version.includes(extractedVersion)) {
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198 | return handler(req, res, next);
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199 | }
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200 | }
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201 | else if ((0, shared_utils_1.isString)(version)) {
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202 |
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203 |
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204 |
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205 |
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206 | if (Array.isArray(extractedVersion) &&
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207 | extractedVersion.includes(version)) {
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208 | return handler(req, res, next);
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209 | }
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210 | if ((0, shared_utils_1.isString)(extractedVersion) && version === extractedVersion) {
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211 | return handler(req, res, next);
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212 | }
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213 | }
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214 | return callNextHandler(req, res, next);
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215 | };
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216 | return handlerForCustomVersioning;
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217 | }
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218 |
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219 | if (versioningOptions.type === common_1.VersioningType.MEDIA_TYPE) {
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220 | const handlerForMediaTypeVersioning = (req, res, next) => {
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221 | var _a, _b;
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222 | const MEDIA_TYPE_HEADER = 'Accept';
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223 | const acceptHeaderValue = ((_a = req.headers) === null || _a === void 0 ? void 0 : _a[MEDIA_TYPE_HEADER]) ||
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224 | ((_b = req.headers) === null || _b === void 0 ? void 0 : _b[MEDIA_TYPE_HEADER.toLowerCase()]);
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225 | const acceptHeaderVersionParameter = acceptHeaderValue
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226 | ? acceptHeaderValue.split(';')[1]
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227 | : undefined;
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228 |
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229 | if ((0, shared_utils_1.isUndefined)(acceptHeaderVersionParameter)) {
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230 | if (Array.isArray(version)) {
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231 | if (version.includes(common_1.VERSION_NEUTRAL)) {
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232 | return handler(req, res, next);
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233 | }
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234 | }
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235 | }
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236 | else {
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237 | const headerVersion = acceptHeaderVersionParameter.split(versioningOptions.key)[1];
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238 | if (Array.isArray(version)) {
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239 | if (version.includes(headerVersion)) {
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240 | return handler(req, res, next);
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241 | }
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242 | }
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243 | else if ((0, shared_utils_1.isString)(version)) {
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244 | if (version === headerVersion) {
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245 | return handler(req, res, next);
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246 | }
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247 | }
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248 | }
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249 | return callNextHandler(req, res, next);
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250 | };
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251 | return handlerForMediaTypeVersioning;
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252 | }
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253 |
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254 | if (versioningOptions.type === common_1.VersioningType.HEADER) {
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255 | const handlerForHeaderVersioning = (req, res, next) => {
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256 | var _a, _b;
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257 | const customHeaderVersionParameter = ((_a = req.headers) === null || _a === void 0 ? void 0 : _a[versioningOptions.header]) ||
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258 | ((_b = req.headers) === null || _b === void 0 ? void 0 : _b[versioningOptions.header.toLowerCase()]);
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259 |
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260 | if ((0, shared_utils_1.isUndefined)(customHeaderVersionParameter)) {
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261 | if (Array.isArray(version)) {
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262 | if (version.includes(common_1.VERSION_NEUTRAL)) {
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263 | return handler(req, res, next);
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264 | }
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265 | }
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266 | }
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267 | else {
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268 | if (Array.isArray(version)) {
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269 | if (version.includes(customHeaderVersionParameter)) {
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270 | return handler(req, res, next);
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271 | }
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272 | }
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273 | else if ((0, shared_utils_1.isString)(version)) {
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274 | if (version === customHeaderVersionParameter) {
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275 | return handler(req, res, next);
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276 | }
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277 | }
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278 | }
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279 | return callNextHandler(req, res, next);
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280 | };
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281 | return handlerForHeaderVersioning;
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282 | }
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283 | }
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284 | trackOpenConnections() {
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285 | this.httpServer.on('connection', (socket) => {
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286 | this.openConnections.add(socket);
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287 | socket.on('close', () => this.openConnections.delete(socket));
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288 | });
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289 | }
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290 | closeOpenConnections() {
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291 | for (const socket of this.openConnections) {
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292 | socket.destroy();
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293 | this.openConnections.delete(socket);
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294 | }
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295 | }
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296 | isMiddlewareApplied(name) {
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297 | const app = this.getInstance();
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298 | return (!!app._router &&
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299 | !!app._router.stack &&
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300 | (0, shared_utils_1.isFunction)(app._router.stack.filter) &&
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301 | app._router.stack.some((layer) => layer && layer.handle && layer.handle.name === name));
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302 | }
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303 | }
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304 | exports.ExpressAdapter = ExpressAdapter;
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