File size: 9,597 Bytes
08aee07 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 | "use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseFeed = exports.FeedHandler = void 0;
var domhandler_1 = __importDefault(require("domhandler"));
var DomUtils = __importStar(require("domutils"));
var Parser_1 = require("./Parser");
var FeedItemMediaMedium;
(function (FeedItemMediaMedium) {
FeedItemMediaMedium[FeedItemMediaMedium["image"] = 0] = "image";
FeedItemMediaMedium[FeedItemMediaMedium["audio"] = 1] = "audio";
FeedItemMediaMedium[FeedItemMediaMedium["video"] = 2] = "video";
FeedItemMediaMedium[FeedItemMediaMedium["document"] = 3] = "document";
FeedItemMediaMedium[FeedItemMediaMedium["executable"] = 4] = "executable";
})(FeedItemMediaMedium || (FeedItemMediaMedium = {}));
var FeedItemMediaExpression;
(function (FeedItemMediaExpression) {
FeedItemMediaExpression[FeedItemMediaExpression["sample"] = 0] = "sample";
FeedItemMediaExpression[FeedItemMediaExpression["full"] = 1] = "full";
FeedItemMediaExpression[FeedItemMediaExpression["nonstop"] = 2] = "nonstop";
})(FeedItemMediaExpression || (FeedItemMediaExpression = {}));
// TODO: Consume data as it is coming in
var FeedHandler = /** @class */ (function (_super) {
__extends(FeedHandler, _super);
/**
*
* @param callback
* @param options
*/
function FeedHandler(callback, options) {
var _this = this;
if (typeof callback === "object") {
callback = undefined;
options = callback;
}
_this = _super.call(this, callback, options) || this;
return _this;
}
FeedHandler.prototype.onend = function () {
var _a, _b;
var feedRoot = getOneElement(isValidFeed, this.dom);
if (!feedRoot) {
this.handleCallback(new Error("couldn't find root of feed"));
return;
}
var feed = {};
if (feedRoot.name === "feed") {
var childs = feedRoot.children;
feed.type = "atom";
addConditionally(feed, "id", "id", childs);
addConditionally(feed, "title", "title", childs);
var href = getAttribute("href", getOneElement("link", childs));
if (href) {
feed.link = href;
}
addConditionally(feed, "description", "subtitle", childs);
var updated = fetch("updated", childs);
if (updated) {
feed.updated = new Date(updated);
}
addConditionally(feed, "author", "email", childs, true);
feed.items = getElements("entry", childs).map(function (item) {
var entry = {};
var children = item.children;
addConditionally(entry, "id", "id", children);
addConditionally(entry, "title", "title", children);
var href = getAttribute("href", getOneElement("link", children));
if (href) {
entry.link = href;
}
var description = fetch("summary", children) || fetch("content", children);
if (description) {
entry.description = description;
}
var pubDate = fetch("updated", children);
if (pubDate) {
entry.pubDate = new Date(pubDate);
}
entry.media = getMediaElements(children);
return entry;
});
}
else {
var childs = (_b = (_a = getOneElement("channel", feedRoot.children)) === null || _a === void 0 ? void 0 : _a.children) !== null && _b !== void 0 ? _b : [];
feed.type = feedRoot.name.substr(0, 3);
feed.id = "";
addConditionally(feed, "title", "title", childs);
addConditionally(feed, "link", "link", childs);
addConditionally(feed, "description", "description", childs);
var updated = fetch("lastBuildDate", childs);
if (updated) {
feed.updated = new Date(updated);
}
addConditionally(feed, "author", "managingEditor", childs, true);
feed.items = getElements("item", feedRoot.children).map(function (item) {
var entry = {};
var children = item.children;
addConditionally(entry, "id", "guid", children);
addConditionally(entry, "title", "title", children);
addConditionally(entry, "link", "link", children);
addConditionally(entry, "description", "description", children);
var pubDate = fetch("pubDate", children);
if (pubDate)
entry.pubDate = new Date(pubDate);
entry.media = getMediaElements(children);
return entry;
});
}
this.feed = feed;
this.handleCallback(null);
};
return FeedHandler;
}(domhandler_1.default));
exports.FeedHandler = FeedHandler;
function getMediaElements(where) {
return getElements("media:content", where).map(function (elem) {
var media = {
medium: elem.attribs.medium,
isDefault: !!elem.attribs.isDefault,
};
if (elem.attribs.url) {
media.url = elem.attribs.url;
}
if (elem.attribs.fileSize) {
media.fileSize = parseInt(elem.attribs.fileSize, 10);
}
if (elem.attribs.type) {
media.type = elem.attribs.type;
}
if (elem.attribs.expression) {
media.expression = elem.attribs
.expression;
}
if (elem.attribs.bitrate) {
media.bitrate = parseInt(elem.attribs.bitrate, 10);
}
if (elem.attribs.framerate) {
media.framerate = parseInt(elem.attribs.framerate, 10);
}
if (elem.attribs.samplingrate) {
media.samplingrate = parseInt(elem.attribs.samplingrate, 10);
}
if (elem.attribs.channels) {
media.channels = parseInt(elem.attribs.channels, 10);
}
if (elem.attribs.duration) {
media.duration = parseInt(elem.attribs.duration, 10);
}
if (elem.attribs.height) {
media.height = parseInt(elem.attribs.height, 10);
}
if (elem.attribs.width) {
media.width = parseInt(elem.attribs.width, 10);
}
if (elem.attribs.lang) {
media.lang = elem.attribs.lang;
}
return media;
});
}
function getElements(tagName, where) {
return DomUtils.getElementsByTagName(tagName, where, true);
}
function getOneElement(tagName, node) {
return DomUtils.getElementsByTagName(tagName, node, true, 1)[0];
}
function fetch(tagName, where, recurse) {
if (recurse === void 0) { recurse = false; }
return DomUtils.getText(DomUtils.getElementsByTagName(tagName, where, recurse, 1)).trim();
}
function getAttribute(name, elem) {
if (!elem) {
return null;
}
var attribs = elem.attribs;
return attribs[name];
}
function addConditionally(obj, prop, what, where, recurse) {
if (recurse === void 0) { recurse = false; }
var tmp = fetch(what, where, recurse);
if (tmp)
obj[prop] = tmp;
}
function isValidFeed(value) {
return value === "rss" || value === "feed" || value === "rdf:RDF";
}
/**
* Parse a feed.
*
* @param feed The feed that should be parsed, as a string.
* @param options Optionally, options for parsing. When using this option, you should set `xmlMode` to `true`.
*/
function parseFeed(feed, options) {
if (options === void 0) { options = { xmlMode: true }; }
var handler = new FeedHandler(options);
new Parser_1.Parser(handler, options).end(feed);
return handler.feed;
}
exports.parseFeed = parseFeed;
|