com.jaeksoft.searchlib.crawler.web.spider.HttpAbstract Maven / Gradle / Ivy
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Show all versions of opensearchserver Show documentation
OpenSearchServer is a powerful, enterprise-class, search engine program. Using the web user interface,
the crawlers (web, file, database, ...) and the REST/RESTFul API you will be able to integrate quickly and
easily advanced full-text search capabilities in your application. OpenSearchServer runs on Windows and
Linux/Unix/BSD.
/**
* License Agreement for OpenSearchServer
*
* Copyright (C) 2013-2014 Emmanuel Keller / Jaeksoft
*
* http://www.open-search-server.com
*
* This file is part of OpenSearchServer.
*
* OpenSearchServer is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenSearchServer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenSearchServer.
* If not, see authSchemeRegistry = RegistryBuilder
. create()
.register(AuthSchemes.NTLM, new NTLMSchemeFactory())
.register(AuthSchemes.BASIC, new BasicSchemeFactory())
.register(AuthSchemes.DIGEST, new DigestSchemeFactory())
.register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory())
.register(AuthSchemes.KERBEROS, new KerberosSchemeFactory())
.build();
credentialsProvider = new BasicCredentialsProvider();
builder.setDefaultCredentialsProvider(credentialsProvider);
cookieStore = new BasicCookieStore();
builder.setDefaultCookieStore(cookieStore);
builder.setDefaultCredentialsProvider(credentialsProvider);
builder.setDefaultAuthSchemeRegistry(authSchemeRegistry);
httpClient = builder.build();
}
protected void reset() {
httpResponse = null;
httpBaseRequest = null;
httpClientContext = null;
synchronized (this) {
if (httpEntity != null) {
try {
EntityUtils.consume(httpEntity);
} catch (IOException e) {
Logging.warn(e.getMessage(), e);
}
httpEntity = null;
}
statusLine = null;
}
}
protected void execute(HttpRequestBase httpBaseRequest,
CredentialItem credentialItem, List cookies)
throws ClientProtocolException, IOException, URISyntaxException {
if (!CollectionUtils.isEmpty(cookies)) {
List cookieList = cookieStore.getCookies();
for (CookieItem cookie : cookies) {
Cookie newCookie = cookie.getCookie();
if (!cookieList.contains(newCookie))
cookieStore.addCookie(newCookie);
}
}
this.httpBaseRequest = httpBaseRequest;
// No more than one 1 minute to establish the connection
// No more than 10 minutes to establish the socket
// Enable stales connection checking
// Cookies uses browser compatibility
RequestConfig.Builder configBuilber = RequestConfig.custom()
.setSocketTimeout(1000 * 60 * 10).setConnectTimeout(1000 * 60)
.setStaleConnectionCheckEnabled(true)
.setCookieSpec(CookieSpecs.BROWSER_COMPATIBILITY);
if (credentialItem == null)
credentialsProvider.clear();
else
credentialItem.setUpCredentials(credentialsProvider);
URI uri = httpBaseRequest.getURI();
if (proxyHandler != null)
proxyHandler.check(configBuilber, uri, credentialsProvider);
httpBaseRequest.setConfig(configBuilber.build());
httpClientContext = new HttpClientContext();
httpResponse = httpClient.execute(httpBaseRequest, httpClientContext);
if (httpResponse == null)
return;
statusLine = httpResponse.getStatusLine();
httpEntity = httpResponse.getEntity();
}
public URI getRedirectLocation() {
synchronized (this) {
if (httpResponse == null)
return null;
if (httpClientContext == null)
return null;
try {
if (!redirectStrategy.isRedirected(httpBaseRequest,
httpResponse, httpClientContext))
return null;
HttpUriRequest httpUri = redirectStrategy.getRedirect(
httpBaseRequest, httpResponse, httpClientContext);
if (httpUri == null)
return null;
return httpUri.getURI();
} catch (ProtocolException e) {
Logging.error(e);
return null;
}
}
}
final public Long getContentLength() {
synchronized (this) {
if (httpEntity != null)
return httpEntity.getContentLength();
Header header = httpResponse.getFirstHeader("Content-Length");
if (header == null)
return null;
String value = header.getValue();
if (value == null)
return null;
return new Long(value);
}
}
public String getContentDispositionFilename() {
synchronized (this) {
if (httpResponse == null)
return null;
Header header = httpResponse.getFirstHeader("Content-Disposition");
if (header == null)
return null;
String s = header.getValue();
int i1 = s.indexOf("filename=");
if (i1 == -1)
return null;
i1 += 9;
int i2 = s.indexOf(";", i1);
String f = (i2 == -1) ? s.substring(i1) : s.substring(i1, i2);
return f.replace("\"", "");
}
}
public String getContentBaseType() {
synchronized (this) {
Header header = null;
if (httpEntity != null)
header = httpEntity.getContentType();
if (header == null)
header = httpResponse.getFirstHeader("Content-Type");
if (header == null)
return null;
String v = header.getValue();
int i = v.indexOf(';');
if (i == -1)
return v;
return v.substring(0, i);
}
}
// Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123
// Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
// Sun Nov 6 08:49:37 1994
private final static String[] LastModifiedDateFormats = {
"EEE, dd MMM yyyy HH:mm:ss zzz", "EEE, dd MMM yyyy HH:mm:ss z",
"EEEE, dd-MMM-yy HH:mm:ss z", "EEE MMM d HH:mm:ss yyyy" };
private final static ThreadSafeDateFormat[] httpDatesFormats;
static {
int i = 0;
httpDatesFormats = new ThreadSafeDateFormat[LastModifiedDateFormats.length * 2];
for (String format : LastModifiedDateFormats) {
httpDatesFormats[i++] = new ThreadSafeSimpleDateFormat(format,
Locale.ENGLISH);
httpDatesFormats[i++] = new ThreadSafeSimpleDateFormat(format);
}
};
public Long getLastModified() {
synchronized (this) {
Header header = httpResponse.getFirstHeader("Last-Modified");
if (header == null)
return null;
String v = header.getValue();
if (v == null)
return null;
ParseException parseException = null;
for (ThreadSafeDateFormat dateFormat : httpDatesFormats) {
try {
return dateFormat.parse(v).getTime();
} catch (ParseException e) {
parseException = e;
}
}
if (parseException != null)
Logging.warn(parseException);
return null;
}
}
public final static void main(String[] argv) {
for (ThreadSafeDateFormat dateFormat : httpDatesFormats) {
try {
System.out.println(dateFormat.parse(
"Thu, 21 Feb 2013 20:11:52 GMT").getTime());
} catch (ParseException e) {
e.printStackTrace();
}
}
}
public String getContentTypeCharset() {
synchronized (this) {
if (httpEntity == null)
return null;
try {
ContentType ct = ContentType.getOrDefault(httpEntity);
if (ct == null)
return null;
Charset charset = ct.getCharset();
if (charset == null)
return null;
return charset.name();
} catch (UnsupportedCharsetException e) {
Logging.warn(e);
return null;
}
}
}
public String getContentEncoding() {
synchronized (this) {
if (httpEntity == null)
return null;
Header header = httpEntity.getContentEncoding();
if (header == null)
return null;
return header.getValue();
}
}
public String getContentLocation() {
synchronized (this) {
if (httpResponse == null)
return null;
Header header = httpResponse.getFirstHeader("Content-Location");
if (header == null)
return null;
return header.getValue();
}
}
protected InputStream getContent() throws IllegalStateException,
IOException {
synchronized (this) {
if (httpEntity == null)
return null;
return httpEntity.getContent();
}
}
public Integer getStatusCode() {
synchronized (this) {
if (statusLine == null)
return null;
return statusLine.getStatusCode();
}
}
public String getReasonPhrase() {
synchronized (this) {
if (statusLine == null)
return null;
return statusLine.getReasonPhrase();
}
}
public void release() {
synchronized (this) {
try {
reset();
IOUtils.close(httpClient);
} catch (Exception e) {
Logging.warn(e.getMessage(), e);
}
}
}
public Header[] getHeaders() {
synchronized (this) {
if (httpResponse == null)
return null;
return httpResponse.getAllHeaders();
}
}
}
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