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@ -281,7 +281,7 @@ public final class plasmaCrawlWorker extends Thread {
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private static plasmaHTCache.Entry load(
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URL url,
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String name,
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String referer,
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String refererURLString,
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String initiator,
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int depth,
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plasmaCrawlProfile.entry profile,
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@ -308,29 +308,19 @@ public final class plasmaCrawlWorker extends Thread {
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boolean ssl = url.getProtocol().equals("https");
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if (port < 0) port = (ssl) ? 443 : 80;
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refererURLString = (refererURLString == null) ? "" : refererURLString.trim();
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// check if url is in blacklist
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String hostlow = host.toLowerCase();
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if (plasmaSwitchboard.urlBlacklist.isListed(hostlow, path)) {
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log.logInfo("CRAWLER Rejecting URL '" + url.toString() + "'. URL is in blacklist.");
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plasmaCrawlEURL.Entry ee = sb.urlPool.errorURL.newEntry(
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url,
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referer,
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initiator,
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yacyCore.seedDB.mySeed.hash,
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name,
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"denied_(url_in_blacklist)",
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new bitfield(indexURL.urlFlagLength)
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);
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ee.store();
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sb.urlPool.errorURL.stackPushEntry(ee);
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_URL_IN_BLACKLIST, new bitfield(indexURL.urlFlagLength));
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return null;
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}
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// TODO: resolve yacy and yacyh domains
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//String yAddress = yacyCore.seedDB.resolveYacyAddress(host);
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referer = (referer == null) ? "" : referer.trim();
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// take a file from the net
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httpc remote = null;
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plasmaHTCache.Entry htCache = null;
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@ -338,7 +328,7 @@ public final class plasmaCrawlWorker extends Thread {
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// create a request header
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httpHeader requestHeader = new httpHeader();
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requestHeader.put(httpHeader.USER_AGENT, httpdProxyHandler.crawlerUserAgent);
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requestHeader.put(httpHeader.REFERER, referer);
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requestHeader.put(httpHeader.REFERER, refererURLString);
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requestHeader.put(httpHeader.ACCEPT_LANGUAGE, sb.getConfig("crawler.acceptLanguage","en-us,en;q=0.5"));
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requestHeader.put(httpHeader.ACCEPT_CHARSET, sb.getConfig("crawler.acceptCharset","ISO-8859-1,utf-8;q=0.7,*;q=0.7"));
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if (useContentEncodingGzip) requestHeader.put(httpHeader.ACCEPT_ENCODING, "gzip,deflate");
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@ -358,15 +348,15 @@ public final class plasmaCrawlWorker extends Thread {
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if (res.status.startsWith("200") || res.status.startsWith("203")) {
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// the transfer is ok
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// TODO: aborting download if content is to long ...
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//long contentLength = res.responseHeader.contentLength();
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// create a new cache entry
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htCache = cacheManager.newEntry(requestDate, depth, url, name, requestHeader, res.status, res.responseHeader, initiator, profile);
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// aborting download if content is to long ...
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if (htCache.cacheFile.getAbsolutePath().length() > serverSystem.maxPathLength) {
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remote.close();
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log.logInfo("REJECTED URL " + url.toString() + " because path too long '" +
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cacheManager.cachePath.getAbsolutePath() + "'");
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log.logInfo("REJECTED URL " + url.toString() + " because path too long '" + cacheManager.cachePath.getAbsolutePath() + "'");
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_CACHEFILE_PATH_TOO_LONG, new bitfield(indexURL.urlFlagLength));
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return (htCache = null);
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}
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@ -377,6 +367,7 @@ public final class plasmaCrawlWorker extends Thread {
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log.logInfo("REJECTED URL " + url.toString() + " because of an invalid file path ('" +
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htCache.cacheFile.getCanonicalPath() + "' does not start with '" +
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cacheManager.cachePath.getAbsolutePath() + "').");
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_INVALID_CACHEFILE_PATH, new bitfield(indexURL.urlFlagLength));
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return (htCache = null);
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}
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@ -408,6 +399,7 @@ public final class plasmaCrawlWorker extends Thread {
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// if the response has not the right file type then reject file
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remote.close();
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log.logInfo("REJECTED WRONG MIME/EXT TYPE " + res.responseHeader.mime() + " for URL " + url.toString());
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_WRONG_MIMETYPE_OR_EXT, new bitfield(indexURL.urlFlagLength));
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htCache = null;
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}
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} catch (SocketException e) {
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@ -418,6 +410,7 @@ public final class plasmaCrawlWorker extends Thread {
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// and most possible corrupted
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if (cacheFile.exists()) cacheFile.delete();
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log.logSevere("CRAWLER LOADER ERROR1: with URL=" + url.toString() + ": " + e.toString());
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_CONNECTION_ERROR, new bitfield(indexURL.urlFlagLength));
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htCache = null;
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}
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} else if (res.status.startsWith("30")) {
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@ -429,6 +422,7 @@ public final class plasmaCrawlWorker extends Thread {
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if (redirectionUrlString.length() == 0) {
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log.logWarning("CRAWLER Redirection of URL=" + url.toString() + " aborted. Location header is empty.");
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_REDIRECTION_HEADER_EMPTY, new bitfield(indexURL.urlFlagLength));
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return null;
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}
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@ -449,6 +443,7 @@ public final class plasmaCrawlWorker extends Thread {
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// if we are already doing a shutdown we don't need to retry crawling
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if (Thread.currentThread().isInterrupted()) {
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log.logSevere("CRAWLER Retry of URL=" + url.toString() + " aborted because of server shutdown.");
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_SERVER_SHUTDOWN, new bitfield(indexURL.urlFlagLength));
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return null;
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}
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@ -461,7 +456,7 @@ public final class plasmaCrawlWorker extends Thread {
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// retry crawling with new url
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plasmaHTCache.Entry redirectedEntry = load(redirectionUrl,
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name,
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referer,
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refererURLString,
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initiator,
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depth,
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profile,
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@ -492,13 +487,14 @@ public final class plasmaCrawlWorker extends Thread {
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}
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} else {
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log.logInfo("Redirection counter exceeded for URL " + url.toString() + ". Processing aborted.");
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_REDIRECTION_COUNTER_EXCEEDED, new bitfield(indexURL.urlFlagLength));
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}
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}else {
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// if the response has not the right response type then reject file
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log.logInfo("REJECTED WRONG STATUS TYPE '" + res.status + "' for URL " + url.toString());
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// not processed any further
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// TODO: add the url into the error url DB
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// not processed any further
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addURLtoErrorDB(url, refererURLString, initiator, name, plasmaCrawlEURL.DENIED_WRONG_HTTP_STATUSCODE + res.statusCode + ")", new bitfield(indexURL.urlFlagLength));
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}
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if (remote != null) remote.close();
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@ -506,6 +502,7 @@ public final class plasmaCrawlWorker extends Thread {
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} catch (Exception e) {
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boolean retryCrawling = false;
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String errorMsg = e.getMessage();
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String failreason = null;
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if ((e instanceof IOException) &&
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(errorMsg != null) &&
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@ -513,47 +510,61 @@ public final class plasmaCrawlWorker extends Thread {
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(Thread.currentThread().isInterrupted())
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) {
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log.logInfo("CRAWLER Interruption detected because of server shutdown.");
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failreason = plasmaCrawlEURL.DENIED_SERVER_SHUTDOWN;
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} else if (e instanceof MalformedURLException) {
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log.logWarning("CRAWLER Malformed URL '" + url.toString() + "' detected. ");
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failreason = plasmaCrawlEURL.DENIED_MALFORMED_URL;
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} else if (e instanceof NoRouteToHostException) {
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log.logWarning("CRAWLER No route to host found while trying to crawl URL '" + url.toString() + "'.");
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failreason = plasmaCrawlEURL.DENIED_NO_ROUTE_TO_HOST;
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} else if ((e instanceof UnknownHostException) ||
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((errorMsg != null) && (errorMsg.indexOf("unknown host") >= 0))) {
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log.logWarning("CRAWLER Unknown host in URL '" + url.toString() + "'. " +
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"Referer URL: " + ((referer == null) ?"Unknown":referer));
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"Referer URL: " + ((refererURLString == null) ?"Unknown":refererURLString));
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failreason = plasmaCrawlEURL.DENIED_UNKNOWN_HOST;
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} else if (e instanceof java.net.BindException) {
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log.logWarning("CRAWLER BindException detected while trying to download content from '" + url.toString() +
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"'. Retrying request.");
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failreason = plasmaCrawlEURL.DENIED_CONNECTION_BIND_EXCEPTION;
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retryCrawling = true;
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} else if ((errorMsg != null) && (errorMsg.indexOf("Corrupt GZIP trailer") >= 0)) {
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log.logWarning("CRAWLER Problems detected while receiving gzip encoded content from '" + url.toString() +
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"'. Retrying request without using gzip content encoding.");
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failreason = plasmaCrawlEURL.DENIED_CONTENT_DECODING_ERROR;
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retryCrawling = true;
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} else if ((errorMsg != null) && (errorMsg.indexOf("Read timed out") >= 0)) {
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log.logWarning("CRAWLER Read timeout while receiving content from '" + url.toString() +
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"'. Retrying request.");
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failreason = plasmaCrawlEURL.DENIED_CONNECTION_TIMEOUT;
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retryCrawling = true;
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} else if ((errorMsg != null) && (errorMsg.indexOf("connect timed out") >= 0)) {
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log.logWarning("CRAWLER Timeout while trying to connect to '" + url.toString() +
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"'. Retrying request.");
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failreason = plasmaCrawlEURL.DENIED_CONNECTION_TIMEOUT;
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retryCrawling = true;
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} else if ((errorMsg != null) && (errorMsg.indexOf("Connection timed out") >= 0)) {
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log.logWarning("CRAWLER Connection timeout while receiving content from '" + url.toString() +
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"'. Retrying request.");
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failreason = plasmaCrawlEURL.DENIED_CONNECTION_TIMEOUT;
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retryCrawling = true;
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} else if ((errorMsg != null) && (errorMsg.indexOf("Connection refused") >= 0)) {
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log.logWarning("CRAWLER Connection refused while trying to connect to '" + url.toString() + "'.");
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failreason = plasmaCrawlEURL.DENIED_CONNECTION_REFUSED;
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} else if ((errorMsg != null) && (errorMsg.indexOf("There is not enough space on the disk") >= 0)) {
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log.logSevere("CRAWLER Not enough space on the disk detected while crawling '" + url.toString() + "'. " +
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"Pausing crawlers. ");
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plasmaCrawlLoader.switchboard.pauseCrawlJob(plasmaSwitchboard.CRAWLJOB_LOCAL_CRAWL);
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plasmaCrawlLoader.switchboard.pauseCrawlJob(plasmaSwitchboard.CRAWLJOB_REMOTE_TRIGGERED_CRAWL);
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failreason = plasmaCrawlEURL.DENIED_OUT_OF_DISK_SPACE;
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} else if ((errorMsg != null) && (errorMsg.indexOf("Network is unreachable") >=0)) {
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log.logSevere("CRAWLER Network is unreachable while trying to crawl URL '" + url.toString() + "'. ");
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failreason = plasmaCrawlEURL.DENIED_NETWORK_IS_UNREACHABLE;
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} else if ((errorMsg != null) && (errorMsg.indexOf("No trusted certificate found")>= 0)) {
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log.logSevere("CRAWLER No trusted certificate found for URL '" + url.toString() + "'. ");
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log.logSevere("CRAWLER No trusted certificate found for URL '" + url.toString() + "'. ");
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failreason = plasmaCrawlEURL.DENIED_SSL_UNTRUSTED_CERT;
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} else {
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log.logSevere("CRAWLER Unexpected Error with URL '" + url.toString() + "': " + e.toString(),e);
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failreason = plasmaCrawlEURL.DENIED_CONNECTION_ERROR;
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}
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if (retryCrawling) {
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@ -573,7 +584,7 @@ public final class plasmaCrawlWorker extends Thread {
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// retry crawling
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return load(url,
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name,
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referer,
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refererURLString,
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initiator,
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depth,
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profile,
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@ -586,10 +597,43 @@ public final class plasmaCrawlWorker extends Thread {
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false
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);
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}
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if (failreason != null) {
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addURLtoErrorDB(url, refererURLString, initiator, name, failreason, new bitfield(indexURL.urlFlagLength));
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}
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return null;
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} finally {
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if (remote != null) httpc.returnInstance(remote);
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}
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}
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private static void addURLtoErrorDB(
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URL url,
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String referrerString,
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String initiator,
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String name,
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String failreason,
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bitfield flags
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) {
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// getting a reference to the plasmaSwitchboard
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plasmaSwitchboard sb = plasmaCrawlLoader.switchboard;
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// convert the referrer URL into a hash value
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String referrerHash = (referrerString==null)?null:indexURL.urlHash(referrerString);
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// create a new errorURL DB entry
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plasmaCrawlEURL.Entry ee = sb.urlPool.errorURL.newEntry(
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url,
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referrerHash,
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initiator,
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yacyCore.seedDB.mySeed.hash,
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name,
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failreason,
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flags
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);
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// store the entry
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ee.store();
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// push it onto the stack
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sb.urlPool.errorURL.stackPushEntry(ee);
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}
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}
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theli
19 years ago