| 1 | "use strict";
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| 2 | var __extends = (this && this.__extends) || (function () {
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| 3 | var extendStatics = function (d, b) {
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| 4 | extendStatics = Object.setPrototypeOf ||
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| 5 | ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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| 6 | function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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| 7 | return extendStatics(d, b);
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| 8 | };
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| 9 | return function (d, b) {
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| 10 | if (typeof b !== "function" && b !== null)
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| 11 | throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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| 12 | extendStatics(d, b);
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| 13 | function __() { this.constructor = d; }
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| 14 | d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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| 15 | };
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| 16 | })();
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| 17 | var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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| 18 | if (k2 === undefined) k2 = k;
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| 19 | Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
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| 20 | }) : (function(o, m, k, k2) {
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| 21 | if (k2 === undefined) k2 = k;
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| 22 | o[k2] = m[k];
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| 23 | }));
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| 24 | var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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| 25 | Object.defineProperty(o, "default", { enumerable: true, value: v });
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| 26 | }) : function(o, v) {
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| 27 | o["default"] = v;
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| 28 | });
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| 29 | var __importStar = (this && this.__importStar) || function (mod) {
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| 30 | if (mod && mod.__esModule) return mod;
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| 31 | var result = {};
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| 32 | if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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| 33 | __setModuleDefault(result, mod);
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| 34 | return result;
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| 35 | };
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| 36 | var __importDefault = (this && this.__importDefault) || function (mod) {
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| 37 | return (mod && mod.__esModule) ? mod : { "default": mod };
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| 38 | };
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| 39 | Object.defineProperty(exports, "__esModule", { value: true });
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| 40 | exports.parseFeed = exports.FeedHandler = void 0;
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| 41 | var domhandler_1 = __importDefault(require("domhandler"));
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| 42 | var DomUtils = __importStar(require("domutils"));
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| 43 | var Parser_1 = require("./Parser");
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| 44 | var FeedItemMediaMedium;
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| 45 | (function (FeedItemMediaMedium) {
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| 46 | FeedItemMediaMedium[FeedItemMediaMedium["image"] = 0] = "image";
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| 47 | FeedItemMediaMedium[FeedItemMediaMedium["audio"] = 1] = "audio";
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| 48 | FeedItemMediaMedium[FeedItemMediaMedium["video"] = 2] = "video";
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| 49 | FeedItemMediaMedium[FeedItemMediaMedium["document"] = 3] = "document";
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| 50 | FeedItemMediaMedium[FeedItemMediaMedium["executable"] = 4] = "executable";
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| 51 | })(FeedItemMediaMedium || (FeedItemMediaMedium = {}));
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| 52 | var FeedItemMediaExpression;
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| 53 | (function (FeedItemMediaExpression) {
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| 54 | FeedItemMediaExpression[FeedItemMediaExpression["sample"] = 0] = "sample";
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| 55 | FeedItemMediaExpression[FeedItemMediaExpression["full"] = 1] = "full";
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| 56 | FeedItemMediaExpression[FeedItemMediaExpression["nonstop"] = 2] = "nonstop";
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| 57 | })(FeedItemMediaExpression || (FeedItemMediaExpression = {}));
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| 58 | // TODO: Consume data as it is coming in
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| 59 | var FeedHandler = /** @class */ (function (_super) {
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| 60 | __extends(FeedHandler, _super);
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| 61 | /**
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| 62 | *
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| 63 | * @param callback
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| 64 | * @param options
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| 65 | */
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| 66 | function FeedHandler(callback, options) {
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| 67 | var _this = this;
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| 68 | if (typeof callback === "object") {
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| 69 | callback = undefined;
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| 70 | options = callback;
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| 71 | }
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| 72 | _this = _super.call(this, callback, options) || this;
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| 73 | return _this;
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| 74 | }
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| 75 | FeedHandler.prototype.onend = function () {
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| 76 | var _a, _b;
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| 77 | var feedRoot = getOneElement(isValidFeed, this.dom);
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| 78 | if (!feedRoot) {
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| 79 | this.handleCallback(new Error("couldn't find root of feed"));
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| 80 | return;
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| 81 | }
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| 82 | var feed = {};
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| 83 | if (feedRoot.name === "feed") {
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| 84 | var childs = feedRoot.children;
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| 85 | feed.type = "atom";
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| 86 | addConditionally(feed, "id", "id", childs);
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| 87 | addConditionally(feed, "title", "title", childs);
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| 88 | var href = getAttribute("href", getOneElement("link", childs));
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| 89 | if (href) {
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| 90 | feed.link = href;
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| 91 | }
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| 92 | addConditionally(feed, "description", "subtitle", childs);
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| 93 | var updated = fetch("updated", childs);
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| 94 | if (updated) {
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| 95 | feed.updated = new Date(updated);
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| 96 | }
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| 97 | addConditionally(feed, "author", "email", childs, true);
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| 98 | feed.items = getElements("entry", childs).map(function (item) {
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| 99 | var entry = {};
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| 100 | var children = item.children;
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| 101 | addConditionally(entry, "id", "id", children);
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| 102 | addConditionally(entry, "title", "title", children);
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| 103 | var href = getAttribute("href", getOneElement("link", children));
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| 104 | if (href) {
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| 105 | entry.link = href;
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| 106 | }
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| 107 | var description = fetch("summary", children) || fetch("content", children);
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| 108 | if (description) {
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| 109 | entry.description = description;
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| 110 | }
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| 111 | var pubDate = fetch("updated", children);
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| 112 | if (pubDate) {
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| 113 | entry.pubDate = new Date(pubDate);
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| 114 | }
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| 115 | entry.media = getMediaElements(children);
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| 116 | return entry;
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| 117 | });
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| 118 | }
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| 119 | else {
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| 120 | var childs = (_b = (_a = getOneElement("channel", feedRoot.children)) === null || _a === void 0 ? void 0 : _a.children) !== null && _b !== void 0 ? _b : [];
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| 121 | feed.type = feedRoot.name.substr(0, 3);
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| 122 | feed.id = "";
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| 123 | addConditionally(feed, "title", "title", childs);
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| 124 | addConditionally(feed, "link", "link", childs);
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| 125 | addConditionally(feed, "description", "description", childs);
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| 126 | var updated = fetch("lastBuildDate", childs);
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| 127 | if (updated) {
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| 128 | feed.updated = new Date(updated);
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| 129 | }
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| 130 | addConditionally(feed, "author", "managingEditor", childs, true);
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| 131 | feed.items = getElements("item", feedRoot.children).map(function (item) {
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| 132 | var entry = {};
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| 133 | var children = item.children;
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| 134 | addConditionally(entry, "id", "guid", children);
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| 135 | addConditionally(entry, "title", "title", children);
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| 136 | addConditionally(entry, "link", "link", children);
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| 137 | addConditionally(entry, "description", "description", children);
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| 138 | var pubDate = fetch("pubDate", children);
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| 139 | if (pubDate)
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| 140 | entry.pubDate = new Date(pubDate);
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| 141 | entry.media = getMediaElements(children);
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| 142 | return entry;
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| 143 | });
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| 144 | }
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| 145 | this.feed = feed;
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| 146 | this.handleCallback(null);
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| 147 | };
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| 148 | return FeedHandler;
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| 149 | }(domhandler_1.default));
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| 150 | exports.FeedHandler = FeedHandler;
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| 151 | function getMediaElements(where) {
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| 152 | return getElements("media:content", where).map(function (elem) {
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| 153 | var media = {
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| 154 | medium: elem.attribs.medium,
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| 155 | isDefault: !!elem.attribs.isDefault,
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| 156 | };
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| 157 | if (elem.attribs.url) {
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| 158 | media.url = elem.attribs.url;
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| 159 | }
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| 160 | if (elem.attribs.fileSize) {
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| 161 | media.fileSize = parseInt(elem.attribs.fileSize, 10);
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| 162 | }
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| 163 | if (elem.attribs.type) {
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| 164 | media.type = elem.attribs.type;
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| 165 | }
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| 166 | if (elem.attribs.expression) {
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| 167 | media.expression = elem.attribs
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| 168 | .expression;
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| 169 | }
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| 170 | if (elem.attribs.bitrate) {
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| 171 | media.bitrate = parseInt(elem.attribs.bitrate, 10);
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| 172 | }
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| 173 | if (elem.attribs.framerate) {
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| 174 | media.framerate = parseInt(elem.attribs.framerate, 10);
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| 175 | }
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| 176 | if (elem.attribs.samplingrate) {
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| 177 | media.samplingrate = parseInt(elem.attribs.samplingrate, 10);
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| 178 | }
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| 179 | if (elem.attribs.channels) {
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| 180 | media.channels = parseInt(elem.attribs.channels, 10);
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| 181 | }
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| 182 | if (elem.attribs.duration) {
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| 183 | media.duration = parseInt(elem.attribs.duration, 10);
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| 184 | }
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| 185 | if (elem.attribs.height) {
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| 186 | media.height = parseInt(elem.attribs.height, 10);
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| 187 | }
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| 188 | if (elem.attribs.width) {
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| 189 | media.width = parseInt(elem.attribs.width, 10);
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| 190 | }
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| 191 | if (elem.attribs.lang) {
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| 192 | media.lang = elem.attribs.lang;
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| 193 | }
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| 194 | return media;
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| 195 | });
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| 196 | }
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| 197 | function getElements(tagName, where) {
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| 198 | return DomUtils.getElementsByTagName(tagName, where, true);
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| 199 | }
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| 200 | function getOneElement(tagName, node) {
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| 201 | return DomUtils.getElementsByTagName(tagName, node, true, 1)[0];
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| 202 | }
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| 203 | function fetch(tagName, where, recurse) {
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| 204 | if (recurse === void 0) { recurse = false; }
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| 205 | return DomUtils.getText(DomUtils.getElementsByTagName(tagName, where, recurse, 1)).trim();
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| 206 | }
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| 207 | function getAttribute(name, elem) {
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| 208 | if (!elem) {
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| 209 | return null;
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| 210 | }
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| 211 | var attribs = elem.attribs;
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| 212 | return attribs[name];
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| 213 | }
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| 214 | function addConditionally(obj, prop, what, where, recurse) {
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| 215 | if (recurse === void 0) { recurse = false; }
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| 216 | var tmp = fetch(what, where, recurse);
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| 217 | if (tmp)
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| 218 | obj[prop] = tmp;
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| 219 | }
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| 220 | function isValidFeed(value) {
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| 221 | return value === "rss" || value === "feed" || value === "rdf:RDF";
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| 222 | }
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| 223 | /**
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| 224 | * Parse a feed.
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| 225 | *
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| 226 | * @param feed The feed that should be parsed, as a string.
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| 227 | * @param options Optionally, options for parsing. When using this option, you should set `xmlMode` to `true`.
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| 228 | */
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| 229 | function parseFeed(feed, options) {
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| 230 | if (options === void 0) { options = { xmlMode: true }; }
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| 231 | var handler = new FeedHandler(options);
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| 232 | new Parser_1.Parser(handler, options).end(feed);
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| 233 | return handler.feed;
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| 234 | }
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| 235 | exports.parseFeed = parseFeed;
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