Amazon.js

{
	"translatorID": "96b9f483-c44d-5784-cdad-ce21b984fe01",
	"label": "Amazon",
	"creator": "Sean Takats, Michael Berkowitz, and Simon Kornblith",
	"target": "^https?://((?:www\\.)|(?:smile\\.))?amazon",
	"minVersion": "3.0",
	"maxVersion": "",
	"priority": 100,
	"inRepository": true,
	"translatorType": 4,
	"browserSupport": "gcsbv",
	"lastUpdated": "2016-03-12 17:57:05"
}

function detectWeb(doc, url) {
	if(getSearchResults(doc, true)) {
		return (Zotero.isBookmarklet ? "server" : "multiple");
	} else {
		var xpath = '//input[contains(@name, "ASIN")]';
		if(doc.evaluate(xpath, doc, null, XPathResult.ANY_TYPE, null).iterateNext()) {
			if(Zotero.isBookmarklet) return "server";
			
			var elmt = doc.evaluate('//input[@name="storeID"]', doc, null, XPathResult.ANY_TYPE, null).iterateNext();
			if(elmt) {
				var storeID = elmt.value;
				//Z.debug(storeID);
				if (storeID=="music"|storeID=="dmusic"){
					return "audioRecording";
				} else if (storeID=="dvd"|storeID=="dvd-de"|storeID=="video"|storeID=="movies-tv"){
					return "videoRecording";
				} else if (storeID=="videogames"|storeID=="mobile-apps") {
					return "computerProgram";
				} else {
					return "book";
				}
			} else {
				return "book";
			}
		}
	}
}

function getSearchResults(doc, checkOnly) {
	//search results
	var links = [],
		container = doc.getElementById('searchTemplate');
	if (container) {
		
		links = container.getElementsByClassName('s-access-detail-page');
		if (!links.length) {
			links = ZU.xpath(container, './/div[contains(@class,"results")]/div[starts-with(@id,"result_")]//h3/a');
		}
	}
	
	if(!links.length) {
		//wish lists
		container = doc.getElementById('item-page-wrapper');
		if(container) {
			links = ZU.xpath(container, './/a[starts-with(@id, "itemName_")]');
		}
	}
	
	if(!links.length) {
		//author pages
		container = doc.getElementById('mainResults');
		if(container) {
			links = ZU.xpath(container, './/li[starts-with(@id, "result_")]//a[h2]');
		}
	}
	
	if(!links.length) return false;
	var availableItems = {}, found = false,
		asinRe = /\/(?:dp|product)\/(?:[^?#]+)\//;
	for(var i=0; i<links.length; i++) {
		var elmt = links[i];
		if(asinRe.test(elmt.href)) {
			if (checkOnly) return true;
			availableItems[elmt.href] = elmt.textContent.trim();
			found = true;
		}
	}
	
	return found ? availableItems : false;
}

function doWeb(doc, url) {
	if(detectWeb(doc, url) == 'multiple') {
		Zotero.selectItems(getSearchResults(doc), function(items) {
			if(!items) return true;
			
			var links = [];
			for(var i in items) links.push(i);
			Zotero.Utilities.processDocuments(links, scrape);
		});

	} else {
		scrape(doc, url);
	}
}

function addLink(doc, item) {
	item.attachments.push({title:"Amazon.com Link", snapshot:false, mimeType:"text/html", url:doc.location.href});
}


var CREATOR = {
	"Actor":"castMember",
	"Director":"director",
	"Producer":"producer",
	"Writer":"scriptwriter",
	"Translator":"translator",
	"Author":"author",
	"Illustrator":"contributor",
	"Editor": "editor"
};

var DATE = [
	"Original Release Date",
	"DVD Release Date"
];

//localization
var i15dFields = {
	'ISBN' : ['ISBN-13', 'ISBN-10', 'ISBN', '条形码'],
	'Publisher': ['Publisher', 'Verlag', '出版社'],
	'Hardcover': ['Hardcover', 'Gebundene Ausgabe', '精装', 'ハードカバー', 'Relié', 'Copertina rigida', 'Tapa dura'],
	'Paperback' : ['Paperback', 'Taschenbuch', '平装', 'ペーパーバック', 'Broché', 'Copertina flessibile', 'Tapa blanda'],
	'Print Length' : ['Print Length', 'Seitenzahl der Print-Ausgabe', '紙の本の長さ', "Nombre de pages de l'édition imprimée", "Longueur d'impression", 'Lunghezza stampa', 'Longitud de impresión', 'Número de páginas'],//TODO: Chinese label
	'Language' : ['Language', 'Sprache', '语种', '言語', 'Langue', 'Lingua', 'Idioma'],
	'Author' : ['Author', '著', '作者'],
	'Actor' : ['Actors', 'Actor', 'Darsteller', 'Acteurs', 'Attori', 'Attore', 'Actores', '出演'],
	'Director' : ['Directors', 'Director', 'Regisseur', 'Regisseur(e)', 'Réalisateurs', 'Regista', 'Directores', '監督'],
	'Producer' : ['Producers', 'Producer'],
	'Run Time' : ['Run Time', 'Spieldauer', 'Durée', 'Durata', 'Duración', '時間'],
	'Studio' : ['Studio', 'Estudio', '販売元'],
	'Audio CD' : ['Audio CD', 'CD', 'CD de audio'],
	'Label' : ['Label', 'Etichetta', 'Étiquette', 'Sello', '发行公司', 'レーベル'],
	'Total Length' : ['Total Length', 'Gesamtlänge', 'Durée totale', 'Lunghezza totale', 'Duración total', '収録時間'],
	'Translator' : ["Translator", "Übersetzer", "Traduttore", "Traductor", "翻訳"],
	'Illustrator' : ["Illustrator", "Illustratore", "Ilustrador", "イラスト"],
	'Writer' : ['Writers'],
	'Editor' : ['Editor', 'Editora', 'Editeur', 'Éditeur', 'Editore']
};

function getField(info, field) {
	//returns the value for the key 'field' or any of its
	//corresponding (language specific) keys of the array 'info'
	
	if(!i15dFields[field]) return;
	
	for(var i=0; i<i15dFields[field].length; i++) {
		if(info[i15dFields[field][i]] !== undefined) return info[i15dFields[field][i]];	
	}
}

function translateField(str) {
	for(var f in i15dFields) {
		if(i15dFields[f].indexOf(str) != -1) {
			return f;
		}
	}
}

function get_nextsibling(n) {
	//returns next sibling of n, or if it was the last one
	//returns next sibling of its parent node, or... --> while(x == null)
	//accepts only element nodes (type 1) or nonempty textnode (type 3)
	//and skips everything else
	var x=n.nextSibling;
	while (x == null || (x.nodeType != 1 && (x.nodeType != 3 || x.textContent.match(/^\s*$/) ))) {
		if (x==null) {
			x = get_nextsibling(n.parentNode);
		} else {
			x=x.nextSibling;
		}
	}
	return x;	
}

function scrape(doc, url) {
	var isAsian = url.search(/^https?:\/\/[^\/]+\.(?:jp|cn)[:\/]/) != -1;
	// Scrape HTML for items without ISBNs, because Amazon doesn't provide an easy way for
	// open source projects like us to use their API
	Z.debug("Scraping from Page");
	var item = new Zotero.Item(detectWeb(doc, url) || "book");

	var title = doc.getElementById('btAsinTitle')
		|| doc.getElementById('title_row')
		|| doc.getElementById('productTitle')
		|| doc.getElementById('ebooksProductTitle')
		|| doc.getElementById('title_feature_div');
	// get first non-empty text node (other text nodes are things like [Paperback] and dates)
	item.title = ZU.trimInternal(
			ZU.xpathText(title, '(.//text()[normalize-space(self::text())])[1]')
		)
		// though sometimes [Paperback] or [DVD] is mushed with the title...
		.replace(/(?: [(\[].+[)\]])+$/, "");
	
	var baseNode = title.parentElement, bncl;
	while(baseNode && (bncl = baseNode.classList) && 
		!(// ways to identify a node encompasing title and authors
			baseNode.id == 'booksTitle'
			|| baseNode.id == 'ppd-center'
			|| baseNode.id == 'title_feature_div'
			|| bncl.contains('buying')
			|| bncl.contains('content')
			|| bncl.contains('DigitalMusicInfoColumn')
			|| (baseNode.id == 'centerCol' && baseNode.firstElementChild.id.indexOf('title') == 0)
		)
	) {
		baseNode = baseNode.parentElement;
	}
	
	if(baseNode) {
		var authors = ZU.xpath(baseNode, './/span[@id="artistBlurb"]/a');
		//if(!authors.length) authors = baseNode.getElementsByClassName('contributorNameID');
		if(!authors.length) authors = ZU.xpath(baseNode, '(.//*[@id="byline"]/span[contains(@class, "author")] | .//*[@id="byline"]/span[contains(@class, "author")]/span)/a[contains(@class, "a-link-normal")][1]');
		if(!authors.length) authors = ZU.xpath(baseNode, './/span[@class="contributorNameTrigger"]/a[not(@href="#")]');
		if(!authors.length) authors = ZU.xpath(baseNode, './/a[following-sibling::*[1][@class="byLinePipe"]]');
		if(!authors.length) authors = ZU.xpath(baseNode, './/a[contains(@href, "field-author=")]');
		if(!authors.length) authors = ZU.xpath(baseNode, './/a[@id="ProductInfoArtistLink"]');
			if(!authors.length) authors = ZU.xpath(baseNode, './/a[@id="ProductInfoArtistLink"]');
		for(var i=0; i<authors.length; i++) {
			var role = ZU.xpathText(authors[i], '(.//following::text()[normalize-space(self::text())])[1]');
			if(role) {
				role = CREATOR[translateField(
					role.replace(/^.*\(\s*|\s*\).*$/g, '')
						.split(',')[0] // E.g. "Actor, Primary Contributor"
						.trim()
				)];
			}
			if(!role) role = 'author';
			
			var name = ZU.trimInternal(authors[i].textContent)
				.replace(/\s*\([^)]+\)/, '');
			
			if(item.itemType == 'audioRecording') {
				item.creators.push({
					lastName: name,
					creatorType: 'performer',
					fieldMode: 1
				});
			} else {
				var invertName = isAsian && !(/[A-Za-z]/.test(name));
				if (invertName) {
					// Use last character as given name if there is no space
					if (name.indexOf(' ') == -1) name = name.replace(/.$/, ' $&');
					name = name.replace(/\s+/, ', '); // Surname comes first
				}
				item.creators.push(ZU.cleanAuthor(name, role, invertName));
			}
		}
	}
	
	//Abstract
	var abstractNode = doc.getElementById('postBodyPS');
	if (abstractNode) {
		item.abstractNote = abstractNode.textContent.trim();
		if (!item.abstractNote) {
			var iframe = abstractNode.getElementsByTagName('iframe')[0];
			if(iframe) {
				abstractNode = iframe.contentWindow.document.getElementById('iframeContent');
				item.abstractNote = abstractNode.textContent.trim();
			}
		}
	}
	
	// Extract info into an array
	var info = {},
		els = ZU.xpath(doc, '//div[@class="content"]/ul/li[b]');
	if(els.length) {
		for(var i=0; i<els.length; i++) {
			var el = els[i],
				key = ZU.xpathText(el, 'b[1]').trim()
			if(key) {
				info[key.replace(/\s*:$/, "")] = el.textContent.substr(key.length+1).trim();
			}
		}
	} else {
		// New design encountered 06/30/2013
		els = ZU.xpath(doc, '//tr[td[@class="a-span3"]][td[@class="a-span9"]]');
		for(var i=0; i<els.length; i++) {
			var el = els[i],
				key = ZU.xpathText(el, 'td[@class="a-span3"]'),
				value = ZU.xpathText(el, 'td[@class="a-span9"]');
			if(key && value) info[key.trim()] = value.trim();
		}
	}
	
	item.ISBN = getField(info, 'ISBN');
	if (item.ISBN) {
		item.ISBN = ZU.cleanISBN(item.ISBN);
	}
	
	// Date
	for(var i=0; i<DATE.length; i++) {
		item.date = info[DATE[i]];
		if(item.date) break;
	}
	if(!item.date) {
		for(var i in info) {
			var m = /\(([^)]+ [0-9]{4})\)/.exec(info[i]);
			if(m) item.date = m[1];
		}
	}
	
	// Books
	var publisher = getField(info, 'Publisher') || getField(info, 'Editor');
	if(publisher) {
		var m = /([^;(]+)(?:;? *([^(]*))?(?:\(([^)]*)\))?/.exec(publisher);
		item.publisher = m[1].trim();
		if(m[2]) item.edition = m[2].trim().replace(/^(Auflage|Édition)\s?:/, '');
		if(m[3] && m[3].search(/\b\d{4}\b/) != -1) item.date = m[3].trim(); // Looks like a date
	}
	var pages = getField(info, 'Hardcover') || getField(info, 'Paperback') || getField(info, 'Print Length');
	if(pages) item.numPages = parseInt(pages, 10);
	item.language = getField(info, 'Language');
	//add publication place from ISBN translator, see at the end
	
	// Video
	if (item.itemType == 'videoRecording') {
		// This seems to only be worth it for videos
		var clearedCreators = false;
		for(var i in CREATOR) {
			if(getField(info, i)) {
				if(!clearedCreators) {
					item.creators = [];
					clearedCreators = true;
				}
				var creators = getField(info, i).split(/ *, */);
				for(var j=0; j<creators.length; j++) {
					item.creators.push(ZU.cleanAuthor(creators[j], CREATOR[i]));
				}
			}
		}
	}
	item.studio = getField(info, 'Studio');
	item.runningTime = getField(info, 'Run Time');
	if (!item.runningTime) item.runningTime = getField(info, 'Total Length');
	item.language = getField(info, 'Language');
	// Music
	item.label = getField(info, 'Label');
	var department = ZU.xpathText(doc, '//li[contains(@class, "nav-category-button")]/a')
	if(getField(info, 'Audio CD')) {
		item.audioRecordingFormat = "Audio CD";
	} else if(department && department.trim() == "Amazon MP3 Store") {
		item.audioRecordingFormat = "MP3";
	}
	
	addLink(doc, item);
	
	//we search for translators for a given ISBN
	//and try to figure out the missing publication place
	if(item.ISBN && !item.place) {
		Z.debug("Searching for additional metadata by ISBN: " + item.ISBN);
		var search = Zotero.loadTranslator("search");
		search.setHandler("translators", function(obj, translators) {
			search.setTranslator(translators);
			search.setHandler("itemDone", function(obj, lookupItem) {
				Z.debug(lookupItem.libraryCatalog);
				if (lookupItem.place) {
					//e.g. [Paris]
					item.place = lookupItem.place.replace("[","").replace("]","");
				}
				
				if (!item.date && lookupItem.date) {
					item.date = lookupItem.date;
				}
			});
			search.translate();
		});
		search.setHandler("error", function(error) {
			// we mostly need this handler to prevent the default one from kicking in
			Z.debug("ISBN search for " + item.ISBN + " failed: " + error);
		});
		search.setHandler("done", function() {
			item.complete();
		});
		search.setSearch({ ISBN: item.ISBN });
		search.getTranslators();
		
	} else {
		item.complete();
	}
	
}

/** BEGIN TEST CASES **/
var testCases = [
	{
		"type": "web",
		"url": "http://www.amazon.com/Test-William-Sleator/dp/0810989891/ref=sr_1_1?ie=UTF8&qid=1308010556&sr=8-1",
		"items": [
			{
				"itemType": "book",
				"title": "Test",
				"creators": [
					{
						"firstName": "William",
						"lastName": "Sleator",
						"creatorType": "author"
					}
				],
				"date": "April 1, 2010",
				"ISBN": "9780810989894",
				"abstractNote": "Now in paperback! Pass, and have it made. Fail, and suffer the consequences. A master of teen thrillers tests readers’ courage in an edge-of-your-seat novel that echoes the fears of exam-takers everywhere. Ann, a teenage girl living in the security-obsessed, elitist United States of the very near future, is threatened on her way home from school by a mysterious man on a black motorcycle. Soon she and a new friend are caught up in a vast conspiracy of greed involving the mega-wealthy owner of a school testing company. Students who pass his test have it made; those who don’t, disappear . . . or worse. Will Ann be next? For all those who suspect standardized tests are an evil conspiracy, here’s a thriller that really satisfies! Praise for Test “Fast-paced with short chapters that end in cliff-hangers . . . good read for moderately reluctant readers. Teens will be able to draw comparisons to contemporary society’s shift toward standardized testing and ecological concerns, and are sure to appreciate the spoofs on NCLB.” —School Library Journal “Part mystery, part action thriller, part romance . . . environmental and political overtones . . . fast pace and unique blend of genres holds attraction for younger teen readers.” —Booklist",
				"edition": "Reprint edition",
				"language": "English",
				"libraryCatalog": "Amazon",
				"numPages": 320,
				"place": "New York",
				"publisher": "Amulet Paperbacks",
				"attachments": [
					{
						"title": "Amazon.com Link",
						"snapshot": false,
						"mimeType": "text/html"
					}
				],
				"tags": [],
				"notes": [],
				"seeAlso": []
			}
		]
	},
	{
		"type": "web",
		"url": "http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dstripbooks&field-keywords=foot&x=0&y=0",
		"items": "multiple"
	},
	{
		"type": "web",
		"url": "http://www.amazon.com/Loveless-My-Bloody-Valentine/dp/B000002LRJ/ref=ntt_mus_ep_dpi_1",
		"items": [
			{
				"itemType": "audioRecording",
				"title": "Loveless",
				"creators": [],
				"date": "November 5, 1991",
				"audioRecordingFormat": "Audio CD",
				"label": "Sire / London/Rhino",
				"libraryCatalog": "Amazon",
				"attachments": [
					{
						"title": "Amazon.com Link",
						"snapshot": false,
						"mimeType": "text/html"
					}
				],
				"tags": [],
				"notes": [],
				"seeAlso": []
			}
		]
	},
	{
		"type": "web",
		"url": "http://www.amazon.com/s?ie=UTF8&keywords=The%20Harvard%20Concise%20Dictionary%20of%20Music%20and%20Musicians&index=blended&Go=o",
		"items": "multiple"
	},
	{
		"type": "web",
		"url": "http://www.amazon.com/Adaptation-Superbit-Collection-Nicholas-Cage/dp/B00005JLRE/ref=sr_1_1?ie=UTF8&qid=1309683150&sr=8-1",
		"items": [
			{
				"itemType": "videoRecording",
				"title": "Adaptation",
				"creators": [
					{
						"firstName": "Maggie",
						"lastName": "Gyllenhaal",
						"creatorType": "castMember"
					},
					{
						"firstName": "Nicolas",
						"lastName": "Cage",
						"creatorType": "castMember"
					},
					{
						"firstName": "Meryl",
						"lastName": "Streep",
						"creatorType": "castMember"
					},
					{
						"firstName": "Tilda",
						"lastName": "Swinton",
						"creatorType": "castMember"
					},
					{
						"firstName": "Chris",
						"lastName": "Cooper",
						"creatorType": "castMember"
					},
					{
						"firstName": "Spike",
						"lastName": "Jonze",
						"creatorType": "director"
					},
					{
						"firstName": "Ed",
						"lastName": "Saxon",
						"creatorType": "producer"
					},
					{
						"firstName": "Jonathan",
						"lastName": "Demme",
						"creatorType": "producer"
					},
					{
						"firstName": "Vincent",
						"lastName": "Landay",
						"creatorType": "producer"
					}
				],
				"date": "May 20, 2003",
				"language": "English (Dolby Digital 2.0 Surround), English (Dolby Digital 5.1), English (DTS 5.1), French (Dolby Digital 5.1)",
				"libraryCatalog": "Amazon",
				"runningTime": "115 minutes",
				"studio": "Sony Pictures Home Entertainment",
				"attachments": [
					{
						"title": "Amazon.com Link",
						"snapshot": false,
						"mimeType": "text/html"
					}
				],
				"tags": [],
				"notes": [],
				"seeAlso": []
			}
		]
	},
	{
		"type": "web",
		"url": "http://www.amazon.com/gp/registry/registry.html?ie=UTF8&id=1Q7ELHV59D7N&type=wishlist",
		"items": "multiple"
	},
	{
		"type": "web",
		"url": "http://www.amazon.fr/Candide-Fran%C3%A7ois-Marie-Voltaire-Arouet-dit/dp/2035866014/ref=sr_1_2?s=books&ie=UTF8&qid=1362329827&sr=1-2",
		"items": [
			{
				"itemType": "book",
				"title": "Candide",
				"creators": [
					{
						"firstName": "François-Marie",
						"lastName": "Voltaire",
						"creatorType": "author"
					}
				],
				"date": "17 août 2011",
				"ISBN": "9782035866011",
				"abstractNote": "Que signifie ce nom \"Candide\" : innocence de celui qui ne connaît pas le mal ou illusion du naïf qui n'a pas fait l'expérience du monde ? Voltaire joue en 1759, après le tremblement de terre de Lisbonne, sur ce double sens. Il nous fait partager les épreuves fictives d'un jeune homme simple, confronté aux leurres de l'optimisme, mais qui n'entend pas désespérer et qui en vient à une sagesse finale, mesurée et mystérieuse. Candide n'en a pas fini de nous inviter au gai savoir et à la réflexion.",
				"edition": "Larousse",
				"language": "Français",
				"libraryCatalog": "Amazon",
				"numPages": 176,
				"place": "Paris",
				"publisher": "Larousse",
				"attachments": [
					{
						"title": "Amazon.com Link",
						"snapshot": false,
						"mimeType": "text/html"
					}
				],
				"tags": [],
				"notes": [],
				"seeAlso": []
			}
		]
	},
	{
		"type": "web",
		"url": "http://www.amazon.de/Fiktionen-Erz%C3%A4hlungen-Jorge-Luis-Borges/dp/3596105811/ref=sr_1_1?ie=UTF8&qid=1362329791&sr=8-1",
		"items": [
			{
				"itemType": "book",
				"title": "Fiktionen: Erzählungen 1939 - 1944",
				"creators": [
					{
						"firstName": "Jorge Luis",
						"lastName": "Borges",
						"creatorType": "author"
					}
				],
				"date": "1. Mai 1992",
				"ISBN": "9783596105816",
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				"abstractNote": "Si pensa che soprattutto in una casa moderna, con prese elettriche, gas, balconi altissimi un bambino possa mettersi in pericolo: Emil vive in una tranquilla casa di campagna, ma riesce a ficcare la testa in una zuppiera e a rimanervi incastrato, a issare la sorellina Ida in cima all'asta di una bandiera, e a fare una tale baldoria alla fiera del paese che i contadini decideranno di organizzare una colletta per spedirlo in America e liberare così la sua povera famiglia. Ma questo succederà nel prossimo libro di Emil, perché ce ne sarà un altro, anzi due, tante sono le sue monellerie. Età di lettura: da 7 anni.",
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