By Hippopottoman
Has 2 other scripts.
// ==UserScript==
// @name XISBN LibraryLookup
// @namespace http://userscripts.org/people/4764
// @description Check book availability in one or more libraries
// @include http://*.amazon.*
// @include http://*.chapters.indigo.ca/*
// @include http://*.powells.com/*
// @include http://*allconsuming.net/item/view/*
// @include http://books.google.*
// ==/UserScript==
// This script was inspired by Jon Udell's userscript of similar functionality
// that he posted in his 'Further adventures in lightweight service
// composition' post of 30 January, 2006
// (http://weblog.infoworld.com/udell/2006/01/30.html).
//
// I've modified the code in the following ways:
// - it's more understandable to me - your mileage may vary, but I found the
// background DOM modification and associated event a little confusing
// - it works against the Waterloo Public Library instead of the Keene
// libraries
// - it only hits XISBN if the original ISBN doesn't appear in the library
// - if no versions of the book are found in the library, that fact is noted
// on the Amazon page
//
// The latest version of this script is always available at
// http://userscripts.org/scripts/show/3393
//
// Updates:
//
// 2006.03.30
// - added Region of Waterloo Library as last-checked library
//
// 2006.03.20
// - Bugfixes, thanks to Kevin Yezbick's sharp eyes
// - better detection of whether books are at the WPL & KPL
// - persisting extra ISBN list until all libraries have been checked
// - updated ISBN & title detection at Chapters
//
// 2006.03.15
// - added support for fallback libraries - if the book isn't found
// in the library, look in others. This could still use some work,
// since we're relooking up the XISBNs
// - added fallback library of Kitchener Public Library
// - added support for Google Books, as requested by Kevin Yezbick
//
// 2006.03.09, later on
// - added All Consuming
//
// 2006.03.09
// - fixed broken ISBN detection on Powells
//
// 2006.03.08
// - Added builtin support for Powells web pages (a US bookseller)
// - Fixed up some logs. A little.
//
// 2006.03.05
// - split 'source page' (formerly Amazon site) functionality into separate objects
// and added builtin support for Chapters web pages (a Canadian bookseller)
(
function()
{
var xisbnQuery = 'http://labs.oclc.org/xisbn/';
var isbnREplain = /(\d{7,9}[\dXx])/g;
var isbnREdelimited = /[^\d](\d{7,9}[\dXx])[^\dXx]/;
var extraIsbns = [];
// Libraries -----------------------------------------------------------
var waterlooRegion =
{
name: 'Region of Waterloo Library',
createSearchUrl: function(isbn)
{
// var prefix = 'http://www.regionofwaterloo.canlib.ca/uhtbin/cgisirsi/uOtJAQjVct/HEADQUARTR/262040012/5/0/?searchdata1=';
var prefix = 'http://www.regionofwaterloo.canlib.ca/uhtbin/cgisirsi/uOtJAQjVct/HEADQUARTR/x/5/0/?searchdata1=';
return prefix + isbn
},
// Get the results of a lookup - mark up the page and return true
// if there's a hit, otherwise return false.
processLookup: function(isbn, results)
{
var notFound = /found no matches in the library you searched/;
page = results.responseText;
if ( notFound.test(page) )
{
GM_log('couldn\'t find ' + isbn + ' at the ' + this.name);
return false;
}
else
{
return true;
}
},
} // end waterlooRegion
var wpl =
{
name: 'Waterloo Public Library',
createSearchUrl: function(isbn)
{
var prefix = 'http://books.wpl.ca/search/?searchtype=i&searcharg=';
var suffix = '&searchscope=3&SORT=D&extended=0&SUBMIT=Search&searchlimits=';
return prefix + isbn + suffix;
},
// Get the results of a lookup - mark up the page and return true
// if there's a hit, otherwise return false.
processLookup: function(isbn, results)
{
var notFound = /No matches found; nearby ISBN[/]ISSN/;
page = results.responseText;
if ( notFound.test(page) )
{
GM_log('couldn\'t find ' + isbn + ' at the ' + this.name);
return false;
}
else
{
return true;
}
},
} // end wpl
var kpl =
{
name: 'Kitchener Public Library',
createSearchUrl: function(isbn)
{
var prefix = 'http://books.wpl.ca/search/?searchtype=i&searcharg=';
var suffix = '&searchscope=1&SORT=D&extended=0&SUBMIT=Search&searchlimits=';
return prefix + isbn + suffix;
},
// the Kitchener Public Library shares a catalog with the WPL, so
// just copy their processLookup
processLookup: wpl.processLookup,
} // end kpl
// End of Libraries ----------------------------------------------------
// Figure out which site the source page comes from to add a new one,
// make a new block like the "chapters" and "amazon" variables below,
// and extend the "if...else..." block at the bottom of this function.
function whichSiteIsThis()
{
var chapters =
{
getIsbn: function()
{
var isbn = null;
isbnLinkNode = document.evaluate
(
"//div[@class='itemPublishingDetails']/a",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE, null
).singleNodeValue;
if ( isbnLinkNode )
{
isbn = isbnLinkNode.firstChild.nodeValue;
}
return isbn;
},
getOriginalTitle: function()
{
var origTitle = document.evaluate
(
"//div[@class='productCoreInfo']/h1/span",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE, null
).singleNodeValue;
return origTitle;
}
}
var allconsuming =
{
getIsbn: function()
{
var isbn = null;
isbnLinkNode = document.evaluate
(
"//div[@class='item-header-body']/a[@class='amazon-link']/@href",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE, null
).singleNodeValue;
if ( isbnLinkNode )
{
isbn = isbnLinkNode.firstChild.nodeValue.match(isbnREdelimited)[1];
}
return isbn;
},
getOriginalTitle: function()
{
var origTitle = document.evaluate
(
"//div[@class='item-header-body']/strong",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE, null
).singleNodeValue;
return origTitle;
}
}
var amazon =
{
getIsbn: function()
{
try
{
return location.href.match(isbnREdelimited)[1];
}
catch ( e )
{
return null;
}
},
getOriginalTitle: function()
{
var origTitle = document.evaluate
(
"//b[@class='sans']",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE, null
).singleNodeValue;
return origTitle;
}
}
var powells =
{
getIsbn: function()
{
try
{
return location.href.match(isbnREdelimited)[1];
}
catch ( e )
{
return null;
}
},
getOriginalTitle: function()
{
var origTitle = document.evaluate
(
"//h1[@class='title']",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE, null
).singleNodeValue;
return origTitle;
}
}
var googleBooks =
{
getIsbn: function()
{
try
{
return location.href.match(isbnREdelimited)[1];
}
catch ( e )
{
return null;
}
},
getOriginalTitle: function()
{
var origTitle = document.evaluate
(
"//span[@class='title']",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE, null
).singleNodeValue;
return origTitle;
}
}
// figure out what site we're looking at
if ( location.href.match(/chapters/) )
{
return chapters;
}
else if ( location.href.match(/allconsuming/) )
{
return allconsuming;
}
else if ( location.href.match(/powells/) )
{
return powells;
}
else if ( location.href.match(/google/) )
{
return googleBooks;
}
else
{
// Amazon's pretty popular - make it the default
return amazon;
}
}
// ---------------------------------------------------------------------
var xisbnCache =
{
cache: {},
get: function(isbn)
{
if ( null == this.cache[isbn] )
{
return null;
}
else
{
return this.cache[isbn].copy()
}
},
set: function(isbns)
{
var isbn = isbns.shift();
if ( ! isbns )
{
isbns = [];
}
GM_log('caching ' + isbns.length + ' items: [' + isbns + '] for ' + isbn);
this.cache[isbn] = isbns.copy();
return this.get(isbn);
}
}
// ---------------------------------------------------------------------
var libraryLookup =
{
originalTitle: null,
infoSpan: null,
getLibrary: function()
{
return this.libraries[0];
},
insertContent: function(content)
{
if ( ! this.infoSpan )
{
this.infoSpan = document.createElement("span");
var sp = document.createElement('br');
this.originalTitle.appendChild(sp);
this.originalTitle.appendChild(this.infoSpan);
}
this.infoSpan.innerHTML = content;
},
// Look up the alternate isbns for this one. Store the results in
// extraIsbns and start looking them up.
lookUpAlternates: function(isbn)
{
alts = xisbnCache.get(isbn);
if ( alts )
{
extraIsbns = alts;
libraryLookup.keepLooking();
return;
}
GM_log('loading extra ISBNs for ' + isbn);
GM_xmlhttpRequest
(
{
method: 'GET',
url: xisbnQuery + isbn,
onload: function(results)
{
var foundIsbns = results.responseText.match(isbnREplain);
extraIsbns = xisbnCache.set(foundIsbns);
GM_log('extra ISBNs = ' + extraIsbns);
libraryLookup.keepLooking();
}
}
);
},
// Lookup ISBNs from the libraryLookup.extraIsbns list. If there
// aren't any extra ISBNs left, give up in disgust. Otherwise, try
// the first ISBN. If it doesn't work out, call keepLooking again.
keepLooking: function()
{
if ( 0 == extraIsbns.length && 1 == this.libraries.length )
{
this.insertContent("isn't in the library");
return;
}
else if ( 0 == extraIsbns.length )
{
GM_log('time to try a new library');
this.libraries.shift();
extraIsbns = null;
this.lookupBook(originalIsbn);
return;
}
var isbn = extraIsbns.shift();
// look up the next book
GM_xmlhttpRequest
(
{
method: 'GET',
url: libraryLookup.getLibrary().createSearchUrl(isbn),
onload: function(results)
{
var found = libraryLookup.getLibrary().processLookup(isbn, results);
if ( found )
{
var library = libraryLookup.getLibrary();
libraryLookup.insertContent('<a href="' +
library.createSearchUrl(isbn) +
'">Hey! The ' +
library.name +
' has this!');
GM_log('found ' + isbn + ' - no more looking');
}
else
{
libraryLookup.keepLooking();
}
}
}
)
},
// Look up an original ISBN - if this fails, fall back to the
// alternate ISBNs provided by xisbn
lookupBook: function(isbn)
{
GM_log('looking up ' + isbn + ' in the ' + this.getLibrary().name);
this.insertContent('looking in the ' + this.getLibrary().name);
GM_xmlhttpRequest
(
{
method: 'GET',
url: libraryLookup.getLibrary().createSearchUrl(isbn),
onload: function(results)
{
var found = libraryLookup.getLibrary().processLookup(isbn, results);
if ( found )
{
var library = libraryLookup.getLibrary();
libraryLookup.insertContent('<a href="' +
library.createSearchUrl(isbn) +
'">Hey! The ' +
library.name +
' has this!');
GM_log('found ' + isbn + ' - no more looking');
}
else
{
libraryLookup.lookUpAlternates(isbn);
}
}
}
)
},
} // end of libraryLookup
var theSite = whichSiteIsThis();
originalIsbn = theSite.getIsbn();
if ( originalIsbn )
{
GM_log('found isbn = "' + originalIsbn + '" on source page');
}
else
{
return;
}
libraryLookup.originalTitle = theSite.getOriginalTitle();
if ( ! libraryLookup.originalTitle )
{
GM_log("couldn't find the original title");
return;
}
// make sure we can copy arrays
if ( typeof Array.prototype.copy==='undefined' )
{
Array.prototype.copy = function()
{
var newArray = [];
var i = this.length;
while( i-- )
{
newArray[i] = typeof this[i].copy !== 'undefined' ? this[i].copy() : this[i];
}
return newArray;
};
}
// Change this to add, delete, or change order in which libraries are
// checked
libraryLookup.libraries = [wpl, kpl, waterlooRegion];
libraryLookup.lookupBook(originalIsbn);
}
)();
