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remove invalid content encoding headers (#580)

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Athou
2014-04-04 11:41:52 +02:00
parent 570c4f3a1f
commit f5f7a8e63b
1 changed files with 31 additions and 1 deletions
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32
src/main/java/com/commafeed/backend/HttpGetter.java
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@@ -4,6 +4,9 @@ import java.io.IOException;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import javax.net.ssl.KeyManager;
import javax.net.ssl.SSLContext;
@@ -15,9 +18,13 @@ import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.http.Consts;
import org.apache.http.Header;
import org.apache.http.HeaderElement;
import org.apache.http.HttpEntity;
import org.apache.http.HttpException;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.HttpResponseInterceptor;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpResponseException;
@@ -32,6 +39,7 @@ import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;
import org.apache.wicket.util.io.IOUtils;
@@ -47,6 +55,27 @@ public class HttpGetter {
private static final String PRAGMA_NO_CACHE = "No-cache";
private static final String CACHE_CONTROL_NO_CACHE = "no-cache";
private static final List<String> ALLOWED_CONTENT_ENCODINGS = Arrays.asList("gzip", "x-gzip", "deflate", "identity");
private static final HttpResponseInterceptor REMOVE_INCORRECT_CONTENT_ENCODING = new HttpResponseInterceptor() {
@Override
public void process(HttpResponse response, HttpContext context) throws HttpException, IOException {
HttpEntity entity = response.getEntity();
if (entity != null && entity.getContentLength() != 0) {
Header header = entity.getContentEncoding();
if (header != null) {
HeaderElement[] codecs = header.getElements();
for (final HeaderElement codec : codecs) {
String codecName = codec.getName().toLowerCase(Locale.US);
if (!ALLOWED_CONTENT_ENCODINGS.contains(codecName)) {
response.removeHeader(header);
}
}
}
}
}
};
private static SSLContext SSL_CONTEXT = null;
static {
try {
@@ -84,7 +113,7 @@ public class HttpGetter {
CloseableHttpResponse response = null;
try {
HttpGet httpget = new HttpGet(url);
HttpClientContext context = HttpClientContext.create();
HttpClientContext context = HttpClientContext.create();
httpget.addHeader(HttpHeaders.ACCEPT_LANGUAGE, ACCEPT_LANGUAGE);
httpget.addHeader(HttpHeaders.PRAGMA, PRAGMA_NO_CACHE);
@@ -194,6 +223,7 @@ public class HttpGetter {
public static CloseableHttpClient newClient(int timeout) {
HttpClientBuilder builder = HttpClients.custom();
builder.useSystemProperties();
builder.addInterceptorFirst(REMOVE_INCORRECT_CONTENT_ENCODING);
builder.disableAutomaticRetries();
builder.setSslcontext(SSL_CONTEXT);