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- Search results scraping for WorldCat.

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- Make scraperJavaScript run on reload again, because it makes debugging easier
- There's not actually a memory leak in the proxyMonitor code.
This commit is contained in:
Simon Kornblith 2006-06-25 16:13:47 +00:00
parent dc8c695855
commit 5e73dcdd2e
3 changed files with 85 additions and 35 deletions
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4
chrome/chromeFiles/content/scholar/ingester/browser.js
View file

@ -196,11 +196,11 @@ Scholar_Ingester_Interface._setDocument = function(browser) {
}
// Only re-load the scraper if it's a new document
if(Scholar_Ingester_Interface.browserUris[key] != browser.contentDocument.location.href) {
//if(Scholar_Ingester_Interface.browserUris[key] != browser.contentDocument.location.href) {
Scholar_Ingester_Interface.browserUris[key] = browser.contentDocument.location.href;
Scholar_Ingester_Interface.browserDocuments[key] = new Scholar.Ingester.Document(browser, window);
Scholar_Ingester_Interface.browserDocuments[key].retrieveScraper();
}
//}
}
/*

1
chrome/chromeFiles/content/scholar/xpcom/ingester.js
View file

@ -59,7 +59,6 @@ Scholar.Ingester.ProxyMonitor.proxyToProper = function(url) {
url = unescape(url);
}
// FIXME - potential memory leak
Scholar.Ingester.ProxyMonitor._now = true;
Scholar.Ingester.ProxyMonitor._url = url;
Scholar.Ingester.ProxyMonitor._host = host;

115
scrapers.sql
View file

@ -1,7 +1,7 @@
-- 17
-- 18
-- Set the following timestamp to the most recent scraper update date
REPLACE INTO "version" VALUES ('repository', STRFTIME('%s', '2006-06-25 00:56:00'));
REPLACE INTO "version" VALUES ('repository', STRFTIME('%s', '2006-06-25 12:11:00'));
REPLACE INTO "scrapers" VALUES('96b9f483-c44d-5784-cdad-ce21b984fe01', '2006-06-22 22:58:00', 'Amazon.com Scraper', 'Simon Kornblith', '^http://www\.amazon\.com/(?:gp/(?:product|search)/|exec/obidos/search-handle-url/)', NULL, 'var prefixRDF = ''http://www.w3.org/1999/02/22-rdf-syntax-ns#'';
var prefixDC = ''http://purl.org/dc/elements/1.1/'';
@ -71,7 +71,7 @@ function scrape(doc) {
model.addStatement(uri, prefixRDF + "type", prefixDummy + "book", false);
}
var searchRe = new RegExp(''http://www\.amazon\.com/(gp/search/|exec/obidos/search-handle-url/)'');
var searchRe = new RegExp(''^http://www\.amazon\.com/(gp/search/|exec/obidos/search-handle-url/)'');
var m = searchRe.exec(doc.location.href)
if(m) {
// Why can''t amazon use the same stylesheets
@ -83,7 +83,7 @@ if(m) {
}
var searchresults = utilities.gatherElementsOnXPath(doc, doc, xpath, nsResolver);
var items = utilities.getItemArray(doc, searchresults, ''http://www\.amazon\.com/(gp/product/|exec/obidos/tg/detail/)'', ''^(Buy new|Hardcover|Paperback|Digital)$'');
var items = utilities.getItemArray(doc, searchresults, ''^http://www\.amazon\.com/(gp/product/|exec/obidos/tg/detail/)'', ''^(Buy new|Hardcover|Paperback|Digital)$'');
items = utilities.selectItems(items);
if(!items) {
@ -103,8 +103,8 @@ if(m) {
scrape(doc);
}');
REPLACE INTO "scrapers" VALUES('838d8849-4ffb-9f44-3d0d-aa8a0a079afe', '2006-06-18 11:02:00', 'WorldCat Scraper', 'Simon Kornblith', '^http://newfirstsearch\.oclc\.org/WebZ/',
'if(doc.title == ''FirstSearch: WorldCat Detailed Record'') {
REPLACE INTO "scrapers" VALUES('838d8849-4ffb-9f44-3d0d-aa8a0a079afe', '2006-06-25 12:11:00', 'WorldCat Scraper', 'Simon Kornblith', '^http://(?:new)?firstsearch\.oclc\.org/WebZ/',
'if(doc.title == ''FirstSearch: WorldCat Detailed Record'' || doc.title == ''FirstSearch: WorldCat List of Records'') {
return true;
}
return false;',
@ -116,36 +116,88 @@ var prefixDummy = ''http://chnm.gmu.edu/firefox-scholar/'';
var sessionRegexp = /(?:\?|\:)sessionid=([^?:]+)(?:\?|\:|$)/;
var numberRegexp = /(?:\?|\:)recno=([^?:]+)(?:\?|\:|$)/;
var resultsetRegexp = /(?:\?|\:)resultset=([^?:]+)(?:\?|\:|$)/;
var lineRegexp = /^([\w() ]+): *(.*)$/;
var publisherRegexp = /^(.*), (.*?),?$/;
var hostRegexp = new RegExp("http://([^/]+)/");
var uri = doc.location.href;
var sMatch = sessionRegexp.exec(uri);
var sessionid = sMatch[1];
var nMatch = numberRegexp.exec(uri);
if(nMatch) {
var number = nMatch[1];
var hMatch = hostRegexp.exec(uri);
var host = hMatch[1];
var newUri, exportselect;
if(doc.title == ''FirstSearch: WorldCat Detailed Record'') {
var publisherRegexp = /^(.*), (.*?),?$/;
var nMatch = numberRegexp.exec(uri);
if(nMatch) {
var number = nMatch[1];
} else {
number = 1;
}
var rMatch = resultsetRegexp.exec(uri);
if(rMatch) {
var resultset = rMatch[1];
} else {
// It''s in an XPCNativeWrapper, so we have to do this black magic
resultset = doc.forms.namedItem(''main'').elements.namedItem(''resultset'').value;
}
exportselect = ''record'';
newUri = ''http://''+host+''/WebZ/DirectExport?numrecs=10:smartpage=directexport:entityexportnumrecs=10:entityexportresultset='' + resultset + '':entityexportrecno='' + number + '':sessionid='' + sessionid + '':entitypagenum=35:0'';
var uris = new Array(newUri);
} else {
number = 1;
var items = utilities.getItemArray(doc, doc, ''/WebZ/FSFETCH\\?fetchtype=fullrecord'', ''^(See more details for locating this item|Detailed Record)$'');
items = utilities.selectItems(items);
if(!items) {
return true;
}
// Set BookMark cookie
for(i in items) { // Hack to get first item
var myCookie = sessionid+":";
var rMatch = resultsetRegexp.exec(i);
var resultset = rMatch[1];
break;
}
var uris = new Array();
for(i in items) {
var nMatch = numberRegexp.exec(i);
myCookie += resultset+"_"+nMatch[1]+",";
uris.push(i);
}
myCookie = myCookie.substr(0, myCookie.length-1);
doc.cookie = "BookMark="+myCookie;
exportselect = ''marked'';
newUri = ''http://''+host+''/WebZ/DirectExport?numrecs=10:smartpage=directexport:entityexportnumrecs=10:entityexportresultset='' + resultset + '':entityexportrecno=1:sessionid='' + sessionid + '':entitypagenum=29:0'';
}
var rMatch = resultsetRegexp.exec(uri);
if(rMatch) {
var resultset = rMatch[1];
} else {
// It''s in an XPCNativeWrapper, so we have to do this black magic
resultset = doc.forms.namedItem(''main'').elements.namedItem(''resultset'').value;
}
var newUri = ''http://newfirstsearch.oclc.org/WebZ/DirectExport?numrecs=10:smartpage=directexport:entityexportnumrecs=10:entityexportresultset='' + resultset + '':entityexportrecno='' + number + '':sessionid='' + sessionid + '':entitypagenum=35:0'';
utilities.HTTPUtilities.doPost(newUri, ''exportselect=record&exporttype=plaintext'', null, function(text) {
utilities.HTTPUtilities.doPost(newUri, ''exportselect=''+exportselect+''&exporttype=plaintext'', null, function(text) {
var lineRegexp = new RegExp();
lineRegexp.compile("^([\\w() ]+): *(.*)$");
var k = 0;
var uri = uris[k];
model.addStatement(uri, prefixRDF + "type", prefixDummy + "book", false);
var lines = text.split(''\n'');
for(var i=0;i<lines.length;i++) {
match = lineRegexp.exec(lines[i]);
if(match) {
if(lines[i] == "--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------") {
k++;
if(uris[k]) {
uri = uris[k];
model.addStatement(uri, prefixRDF + "type", prefixDummy + "book", false);
} else {
break;
}
} else if(match) {
if(match[1] == ''Title'') {
var title = match[2];
if(!lineRegexp.test(lines[i+1])) {
@ -204,7 +256,6 @@ utilities.HTTPUtilities.doPost(newUri, ''exportselect=record&exporttype=plaintex
}
}
}
model.addStatement(uri, prefixRDF + "type", prefixDummy + "book", false);
done();
})
@ -582,7 +633,7 @@ if(newUri) {
} else { // Search results page
// Require link to match this
var tagRegexp = new RegExp();
tagRegexp.compile(''http://[^/]+/search/[^/]+/[^/]+/1\%2C[^/]+/frameset'');
tagRegexp.compile(''^http://[^/]+/search/[^/]+/[^/]+/1\%2C[^/]+/frameset'');
var checkboxes = new Array();
var urls = new Array();
@ -804,7 +855,7 @@ if(!scrape(doc)) {
}
');
REPLACE INTO "scrapers" VALUES('a77690cf-c5d1-8fc4-110f-d1fc765dcf88', '2006-06-18 09:58:00', 'ProQuest Scraper', 'Simon Kornblith', 'http://proquest\.umi\.com/pqdweb\?(?:.*\&)?did=', '',
REPLACE INTO "scrapers" VALUES('a77690cf-c5d1-8fc4-110f-d1fc765dcf88', '2006-06-18 09:58:00', 'ProQuest Scraper', 'Simon Kornblith', '^http://proquest\.umi\.com/pqdweb\?(?:.*\&)?did=', '',
'var prefixRDF = ''http://www.w3.org/1999/02/22-rdf-syntax-ns#'';
var prefixDC = ''http://purl.org/dc/elements/1.1/'';
var prefixDCMI = ''http://purl.org/dc/dcmitype/'';
@ -1062,7 +1113,7 @@ if(m) {
}
}');
REPLACE INTO "scrapers" VALUES('cf87eca8-041d-b954-795a-2d86348999d5', '2006-06-23 13:34:00', 'Aleph Scraper', 'Simon Kornblith', 'http://[^/]+/F(?:/[A-Z0-9\-]+(?:\?.*)?$|\?func=find)',
REPLACE INTO "scrapers" VALUES('cf87eca8-041d-b954-795a-2d86348999d5', '2006-06-23 13:34:00', 'Aleph Scraper', 'Simon Kornblith', '^http://[^/]+/F(?:/[A-Z0-9\-]+(?:\?.*)?$|\?func=find)',
'var singleRe = new RegExp("^http://[^/]+/F/[A-Z0-9\-]+\?.*func=full-set-set.*\&format=[0-9]{3}");
if(singleRe.test(doc.location.href)) {
@ -1223,7 +1274,7 @@ utilities.processDocuments(browser, null, uris, function(newBrowser) {
wait();');
REPLACE INTO "scrapers" VALUES('63a0a351-3131-18f4-21aa-f46b9ac51d87', '2006-06-23 15:21:00', 'VTLS Scraper', 'Simon Kornblith', '\/chameleon(?:\?|$)',
REPLACE INTO "scrapers" VALUES('63a0a351-3131-18f4-21aa-f46b9ac51d87', '2006-06-23 15:21:00', 'VTLS Scraper', 'Simon Kornblith', '/chameleon(?:\?|$)',
'var node = utilities.getNode(doc, doc, ''//a[text()="marc"]'', null);
if(node) {
return true;
@ -1905,7 +1956,7 @@ for(var i=0; i<metaTags.length; i++) {
}
}');
REPLACE INTO "scrapers" VALUES('3e684d82-73a3-9a34-095f-19b112d88bbf', '2006-06-24 13:31:00', 'Google Books Scraper', 'Simon Kornblith', 'http://books\.google\.com/books\?(.*vid=.*\&id=.*|.*q=.*)', NULL,
REPLACE INTO "scrapers" VALUES('3e684d82-73a3-9a34-095f-19b112d88bbf', '2006-06-24 13:31:00', 'Google Books Scraper', 'Simon Kornblith', '^http://books\.google\.com/books\?(.*vid=.*\&id=.*|.*q=.*)', NULL,
'var prefixRDF = ''http://www.w3.org/1999/02/22-rdf-syntax-ns#'';
var prefixDC = ''http://purl.org/dc/elements/1.1/'';
var prefixDCMI = ''http://purl.org/dc/dcmitype/'';
@ -1914,7 +1965,7 @@ var prefixDummy = ''http://chnm.gmu.edu/firefox-scholar/'';
var uri = doc.location.href;
var newUris = new Array();
var re = new RegExp(''http://books\\.google\\.com/books\\?vid=([^&]+).*\\&id=([^&]+)'', ''i'');
var re = new RegExp(''^http://books\\.google\\.com/books\\?vid=([^&]+).*\\&id=([^&]+)'', ''i'');
var m = re.exec(uri);
if(m) {
newUris.push(''http://books.google.com/books?vid=''+m[1]+''&id=''+m[2]);